Merge remote-tracking branch 'refs/remotes/origin/main'

1 files changed, 21676 insertions, 2016 deletions

diff --git a/tests/trace_reference.txt b/tests/trace_reference.txt
index 52edcc93..767b6cbb 100644
--- a/tests/trace_reference.txt
+++ b/tests/trace_reference.txt
@@ -31,9 +31,9 @@ fn add_test(x : u32, y : u32) -> u32 {
   var@4 : u32;
   var@5 : (u32, bool);
 
-  var@3 := copy x
-  var@4 := copy y
-  var@0 := copy var@3 + copy var@4
+  var@3 := copy x;
+  var@4 := copy y;
+  var@0 := copy var@3 + copy var@4;
   return
 }
 
@@ -45,9 +45,9 @@ fn subs_test(x : u32, y : u32) -> u32 {
   var@4 : u32;
   var@5 : (u32, bool);
 
-  var@3 := copy x
-  var@4 := copy y
-  var@0 := copy var@3 - copy var@4
+  var@3 := copy x;
+  var@4 := copy y;
+  var@0 := copy var@3 - copy var@4;
   return
 }
 
@@ -59,9 +59,9 @@ fn div_test(x : u32, y : u32) -> u32 {
   var@4 : u32;
   var@5 : bool;
 
-  var@3 := copy x
-  var@4 := copy y
-  var@0 := move var@3 / move var@4
+  var@3 := copy x;
+  var@4 := copy y;
+  var@0 := move var@3 / move var@4;
   return
 }
 
@@ -73,9 +73,9 @@ fn rem_test(x : u32, y : u32) -> u32 {
   var@4 : u32;
   var@5 : bool;
 
-  var@3 := copy x
-  var@4 := copy y
-  var@0 := move var@3 % move var@4
+  var@3 := copy x;
+  var@4 := copy y;
+  var@0 := move var@3 % move var@4;
   return
 }
 
@@ -92,18 +92,18 @@ fn test2() {
   e1 : test1::EmptyEnum;
   enum0 : test1::Enum;
 
-  x := 23: u32
-  y := 44: u32
-  z := 67: u32
-  var@5 := copy x
-  (p).x := move var@5
-  (p).y := 67: u32
-  (s as test1::Sum::Right).0 := true
-  set_discriminant(s, 1)
-  (o as test1::One::One).0 := 3: u64
-  set_discriminant(o, 0)
-  set_discriminant(e0, 0)
-  set_discriminant(enum0, 0)
+  x := 23: u32;
+  y := 44: u32;
+  z := 67: u32;
+  var@5 := copy x;
+  (p).x := move var@5;
+  (p).y := 67: u32;
+  (s as test1::Sum::Right).0 := true;
+  set_discriminant(s, 1);
+  (o as test1::One::One).0 := 3: u64;
+  set_discriminant(o, 0);
+  set_discriminant(e0, 0);
+  set_discriminant(enum0, 0);
   return
 }
 
@@ -115,15 +115,15 @@ fn get_max(x : u32, y : u32) -> u32 {
   var@4 : u32;
   var@5 : u32;
 
-  var@4 := copy x
-  var@5 := copy y
-  var@3 := move var@4 >= move var@5
+  var@4 := copy x;
+  var@5 := copy y;
+  var@3 := move var@4 >= move var@5;
   if (move var@3) {
     var@0 := copy x
   }
   else {
     var@0 := copy y
-  }
+  };
   return
 }
 
@@ -139,15 +139,15 @@ fn test3() {
   var@8 : bool;
   var@9 : u32;
 
-  x := move get_max(4: u32, 3: u32)
-  y := move get_max(10: u32, 11: u32)
-  var@4 := copy x
-  var@5 := copy y
-  z := copy var@4 + copy var@5
-  var@9 := copy z
-  var@8 := move var@9 == 15: u32
-  var@7 := ¬ move var@8
-  assert(¬move var@7)
+  x := move get_max(4: u32, 3: u32);
+  y := move get_max(10: u32, 11: u32);
+  var@4 := copy x;
+  var@5 := copy y;
+  z := copy var@4 + copy var@5;
+  var@9 := copy z;
+  var@8 := move var@9 == 15: u32;
+  var@7 := ¬ move var@8;
+  assert(¬move var@7);
   return
 }
 
@@ -157,10 +157,10 @@ fn test_neg(x : i32) -> i32 {
   var@2 : i32;
   var@3 : bool;
 
-  var@2 := copy x
-  var@3 := copy var@2 == -2147483648: i32
-  assert(¬move var@3)
-  var@0 := - move var@2
+  var@2 := copy x;
+  var@3 := copy var@2 == -2147483648: i32;
+  assert(¬move var@3);
+  var@0 := - move var@2;
   return
 }
 
@@ -169,8 +169,8 @@ fn test_neg1() {
   x : i32;
   y : i32;
 
-  x := 3: i32
-  y := -3: i32
+  x := 3: i32;
+  y := -3: i32;
   return
 }
 
@@ -183,14 +183,14 @@ fn refs_test1() {
   var@5 : bool;
   var@6 : i32;
 
-  x := 0: i32
-  px := &mut x
-  ppx := &mut px
-  *(*(ppx)) := 1: i32
-  var@6 := copy x
-  var@5 := move var@6 == 1: i32
-  var@4 := ¬ move var@5
-  assert(¬move var@4)
+  x := 0: i32;
+  px := &mut x;
+  ppx := &mut px;
+  *(*(ppx)) := 1: i32;
+  var@6 := copy x;
+  var@5 := move var@6 == 1: i32;
+  var@4 := ¬ move var@5;
+  assert(¬move var@4);
   return
 }
 
@@ -215,30 +215,30 @@ fn refs_test2() {
   var@17 : bool;
   var@18 : i32;
 
-  x := 0: i32
-  y := 1: i32
-  px := &mut x
-  py := &mut y
-  ppx := &mut px
-  var@6 := &mut *(py)
-  *(ppx) := move var@6
-  *(*(ppx)) := 2: i32
-  var@9 := copy *(px)
-  var@8 := move var@9 == 2: i32
-  var@7 := ¬ move var@8
-  assert(¬move var@7)
-  var@12 := copy x
-  var@11 := move var@12 == 0: i32
-  var@10 := ¬ move var@11
-  assert(¬move var@10)
-  var@15 := copy *(py)
-  var@14 := move var@15 == 2: i32
-  var@13 := ¬ move var@14
-  assert(¬move var@13)
-  var@18 := copy y
-  var@17 := move var@18 == 2: i32
-  var@16 := ¬ move var@17
-  assert(¬move var@16)
+  x := 0: i32;
+  y := 1: i32;
+  px := &mut x;
+  py := &mut y;
+  ppx := &mut px;
+  var@6 := &mut *(py);
+  *(ppx) := move var@6;
+  *(*(ppx)) := 2: i32;
+  var@9 := copy *(px);
+  var@8 := move var@9 == 2: i32;
+  var@7 := ¬ move var@8;
+  assert(¬move var@7);
+  var@12 := copy x;
+  var@11 := move var@12 == 0: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy *(py);
+  var@14 := move var@15 == 2: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 2: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
   return
 }
 
@@ -248,12 +248,12 @@ fn test_list1() {
   var@2 : std::boxed::Box<test1::List<i32>>;
   var@3 : test1::List<i32>;
 
-  set_discriminant(var@3, 1)
-  var@2 := move alloc::boxed::Box<test1::List<i32>>::new(move var@3)
-  (l as test1::List::Cons).0 := 0: i32
-  (l as test1::List::Cons).1 := move var@2
-  set_discriminant(l, 0)
-drop(l)
+  set_discriminant(var@3, 1);
+  var@2 := move alloc::boxed::Box<test1::List<i32>>::new(move var@3);
+  (l as test1::List::Cons).0 := 0: i32;
+  (l as test1::List::Cons).1 := move var@2;
+  set_discriminant(l, 0);
+  drop(l);
   return
 }
 
@@ -268,17 +268,17 @@ fn test_box1() {
   var@7 : bool;
   var@8 : i32;
 
-  b := move alloc::boxed::Box<i32>::new(0: i32)
-  var@3 := &two-phase b
-  x := move core::ops::deref::DerefMut<i32>::deref_mut(move var@3)
-  *(x) := 1: i32
-  var@5 := &b
-  x := move core::ops::deref::Deref<Box<i32>>::deref(move var@5)
-  var@8 := copy *(x)
-  var@7 := move var@8 == 1: i32
-  var@6 := ¬ move var@7
-  assert(¬move var@6)
-drop(b)
+  b := move alloc::boxed::Box<i32>::new(0: i32);
+  var@3 := &two-phase b;
+  x := move core::ops::deref::DerefMut<i32>::deref_mut(move var@3);
+  *(x) := 1: i32;
+  var@5 := &b;
+  x := move core::ops::deref::Deref<Box<i32>>::deref(move var@5);
+  var@8 := copy *(x);
+  var@7 := move var@8 == 1: i32;
+  var@6 := ¬ move var@7;
+  assert(¬move var@6);
+  drop(b);
   return
 }
 
@@ -286,7 +286,7 @@ fn copy_int(x : i32) -> i32 {
   var@0 : i32;
   x : i32;
 
-  var@0 := copy x
+  var@0 := copy x;
   return
 }
 
@@ -301,15 +301,15 @@ fn test_copy_int() {
   var@7 : i32;
   var@8 : i32;
 
-  x := 0: i32
-  px := &x
-  var@4 := copy x
-  y := move copy_int(move var@4)
-  var@7 := copy *(px)
-  var@8 := copy y
-  var@6 := move var@7 == move var@8
-  var@5 := ¬ move var@6
-  assert(¬move var@5)
+  x := 0: i32;
+  px := &x;
+  var@4 := copy x;
+  y := move copy_int(move var@4);
+  var@7 := copy *(px);
+  var@8 := copy y;
+  var@6 := move var@7 == move var@8;
+  var@5 := ¬ move var@6;
+  assert(¬move var@5);
   return
 }
 
@@ -318,7 +318,7 @@ fn is_cons<0,T>(l : &0 (test1::List<T>)) -> bool {
   l : &'_ (test1::List<T>);
   var@2 : isize;
 
-  var@2 := discriminant(*(l))
+  var@2 := discriminant(*(l));
   switch (move var@2) {
     0: isize => {
       var@0 := true
@@ -329,7 +329,7 @@ fn is_cons<0,T>(l : &0 (test1::List<T>)) -> bool {
     _ => {
       panic
     }
-  }
+  };
   return
 }
 
@@ -343,17 +343,17 @@ fn test_is_cons() {
   var@6 : &'_ (test1::List<i32>);
   var@7 : &'_ (test1::List<i32>);
 
-  set_discriminant(var@3, 1)
-  var@2 := move alloc::boxed::Box<test1::List<i32>>::new(move var@3)
-  (l as test1::List::Cons).0 := 0: i32
-  (l as test1::List::Cons).1 := move var@2
-  set_discriminant(l, 0)
-  var@7 := &l
-  var@6 := copy var@7
-  var@5 := move is_cons<i32>(move var@6)
-  var@4 := ¬ move var@5
-  assert(¬move var@4)
-drop(l)
+  set_discriminant(var@3, 1);
+  var@2 := move alloc::boxed::Box<test1::List<i32>>::new(move var@3);
+  (l as test1::List::Cons).0 := 0: i32;
+  (l as test1::List::Cons).1 := move var@2;
+  set_discriminant(l, 0);
+  var@7 := &l;
+  var@6 := copy var@7;
+  var@5 := move is_cons<i32>(move var@6);
+  var@4 := ¬ move var@5;
+  assert(¬move var@4);
+  drop(l);
   return
 }
 
@@ -370,22 +370,22 @@ fn split_list<T>(l : test1::List<T>) -> (T, test1::List<T>) {
   var@9 : ();
   var@10 : isize;
 
-  var@8 := false
-  var@7 := false
-  var@7 := true
-  var@8 := true
-  var@2 := discriminant(l)
+  var@8 := false;
+  var@7 := false;
+  var@7 := true;
+  var@8 := true;
+  var@2 := discriminant(l);
   switch (move var@2) {
     0: isize => {
-      var@8 := false
-      hd := move (l as test1::List::Cons).0
-      var@7 := false
-      tl := move (l as test1::List::Cons).1
-      var@5 := move hd
-      var@6 := move deref_box(tl)
-      (var@0).0 := move var@5
-      (var@0).1 := move var@6
-      var@9 := move alloc::alloc::box_free<test1::List<T>>(move tl)
+      var@8 := false;
+      hd := move (l as test1::List::Cons).0;
+      var@7 := false;
+      tl := move (l as test1::List::Cons).1;
+      var@5 := move hd;
+      var@6 := move deref_box(tl);
+      (var@0).0 := move var@5;
+      (var@0).1 := move var@6;
+      var@9 := move alloc::alloc::box_free<test1::List<T>>(move tl);
       return
     }
     _ => {
@@ -407,20 +407,20 @@ fn test_split_list() {
   var@9 : bool;
   var@10 : i32;
 
-  set_discriminant(var@3, 1)
-  var@2 := move alloc::boxed::Box<test1::List<i32>>::new(move var@3)
-  (l as test1::List::Cons).0 := 0: i32
-  (l as test1::List::Cons).1 := move var@2
-  set_discriminant(l, 0)
-  var@7 := move l
-  var@6 := move split_list<i32>(move var@7)
-  hd := copy (var@6).0
-  tl := move (var@6).1
-  var@10 := copy hd
-  var@9 := move var@10 == 0: i32
-  var@8 := ¬ move var@9
-  assert(¬move var@8)
-drop(tl)
+  set_discriminant(var@3, 1);
+  var@2 := move alloc::boxed::Box<test1::List<i32>>::new(move var@3);
+  (l as test1::List::Cons).0 := 0: i32;
+  (l as test1::List::Cons).1 := move var@2;
+  set_discriminant(l, 0);
+  var@7 := move l;
+  var@6 := move split_list<i32>(move var@7);
+  hd := copy (var@6).0;
+  tl := move (var@6).1;
+  var@10 := copy hd;
+  var@9 := move var@10 == 0: i32;
+  var@8 := ¬ move var@9;
+  assert(¬move var@8);
+  drop(tl);
   return
 }
 
@@ -431,13 +431,13 @@ fn get_elem<'a,T>(b : bool, x : &'a mut (T), y : &'a mut (T)) -> &'a mut (T) {
   y : &'_ mut (T);
   var@4 : bool;
 
-  var@4 := copy b
+  var@4 := copy b;
   if (move var@4) {
     var@0 := &mut *(x)
   }
   else {
     var@0 := move y
-  }
+  };
   return
 }
 
@@ -462,27 +462,27 @@ fn get_elem_test() {
   var@17 : bool;
   var@18 : i32;
 
-  x := 0: i32
-  y := 0: i32
-  var@5 := &mut x
-  var@4 := &two-phase *(var@5)
-  var@7 := &mut y
-  var@6 := &two-phase *(var@7)
-  z := move get_elem<i32>(true, move var@4, move var@6)
-  var@8 := copy *(z)
-  *(z) := copy var@8 + 1: i32
-  var@12 := copy *(z)
-  var@11 := move var@12 == 1: i32
-  var@10 := ¬ move var@11
-  assert(¬move var@10)
-  var@15 := copy x
-  var@14 := move var@15 == 1: i32
-  var@13 := ¬ move var@14
-  assert(¬move var@13)
-  var@18 := copy y
-  var@17 := move var@18 == 0: i32
-  var@16 := ¬ move var@17
-  assert(¬move var@16)
+  x := 0: i32;
+  y := 0: i32;
+  var@5 := &mut x;
+  var@4 := &two-phase *(var@5);
+  var@7 := &mut y;
+  var@6 := &two-phase *(var@7);
+  z := move get_elem<i32>(true, move var@4, move var@6);
+  var@8 := copy *(z);
+  *(z) := copy var@8 + 1: i32;
+  var@12 := copy *(z);
+  var@11 := move var@12 == 1: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy x;
+  var@14 := move var@15 == 1: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 0: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
   return
 }
 
@@ -491,8 +491,8 @@ fn id_mut_mut<'a,'b,T>(x : &'a mut (&'b mut (T))) -> &'a mut (&'b mut (T)) {
   x : &'_ mut (&'_ mut (T));
   var@2 : &'_ mut (&'_ mut (T));
 
-  var@2 := &mut *(x)
-  var@0 := &mut *(var@2)
+  var@2 := &mut *(x);
+  var@0 := &mut *(var@2);
   return
 }
 
@@ -501,8 +501,8 @@ fn id_mut_pair<'a,T>(x : &'a mut ((&'a mut (T), u32))) -> &'a mut ((&'a mut (T),
   x : &'_ mut ((&'_ mut (T), u32));
   var@2 : &'_ mut ((&'_ mut (T), u32));
 
-  var@2 := &mut *(x)
-  var@0 := &mut *(var@2)
+  var@2 := &mut *(x);
+  var@0 := &mut *(var@2);
   return
 }
 
@@ -519,19 +519,19 @@ fn id_mut_pair_test1() {
   var@9 : &'_ mut (u32);
   var@10 : &'_ mut (u32);
 
-  x := 0: u32
-  px := &mut x
-  var@4 := move px
-  (p).0 := move var@4
-  (p).1 := 1: u32
-  pp0 := &mut p
-  var@7 := &two-phase *(pp0)
-  pp1 := move id_mut_pair<u32>(move var@7)
-  y := 2: u32
-  var@10 := &mut y
-  var@9 := &mut *(var@10)
-  *((pp1).0) := move var@9
-  *((pp1).1) := 3: u32
+  x := 0: u32;
+  px := &mut x;
+  var@4 := move px;
+  (p).0 := move var@4;
+  (p).1 := 1: u32;
+  pp0 := &mut p;
+  var@7 := &two-phase *(pp0);
+  pp1 := move id_mut_pair<u32>(move var@7);
+  y := 2: u32;
+  var@10 := &mut y;
+  var@9 := &mut *(var@10);
+  *((pp1).0) := move var@9;
+  *((pp1).1) := 3: u32;
   return
 }
 
@@ -540,8 +540,8 @@ fn id_mut_mut_pair<'a,T>(x : &'a mut (&'a mut ((&'a mut (T), u32)))) -> &'a mut
   x : &'_ mut (&'_ mut ((&'_ mut (T), u32)));
   var@2 : &'_ mut (&'_ mut ((&'_ mut (T), u32)));
 
-  var@2 := &mut *(x)
-  var@0 := &mut *(var@2)
+  var@2 := &mut *(x);
+  var@0 := &mut *(var@2);
   return
 }
 
@@ -550,8 +550,8 @@ fn id_mut_mut_mut_same<'a,T>(x : &'a mut (&'a mut (&'a mut (u32)))) -> &'a mut (
   x : &'_ mut (&'_ mut (&'_ mut (u32)));
   var@2 : &'_ mut (&'_ mut (&'_ mut (u32)));
 
-  var@2 := &mut *(x)
-  var@0 := &mut *(var@2)
+  var@2 := &mut *(x);
+  var@0 := &mut *(var@2);
   return
 }
 
@@ -575,23 +575,23 @@ fn test_loop1(max : u32) -> u32 {
   var@8 : (u32, bool);
   var@9 : (u32, bool);
 
-  i := 0: u32
-  s := 0: u32
+  i := 0: u32;
+  s := 0: u32;
   loop {
-    var@4 := copy i
-    var@5 := copy max
-    var@3 := move var@4 < move var@5
+    var@4 := copy i;
+    var@5 := copy max;
+    var@3 := move var@4 < move var@5;
     if (move var@3) {
-      var@6 := copy i
-      s := copy s + copy var@6
-      i := copy i + 1: u32
+      var@6 := copy i;
+      s := copy s + copy var@6;
+      i := copy i + 1: u32;
       continue 0
     }
     else {
       break 0
     }
-  }
-  s := copy s * 2: u32
+  };
+  s := copy s * 2: u32;
   return
 }
 
@@ -607,22 +607,22 @@ fn test_loop2(max : u32) -> u32 {
   var@8 : (u32, bool);
   var@9 : (u32, bool);
 
-  i := 0: u32
-  s := 0: u32
+  i := 0: u32;
+  s := 0: u32;
   loop {
-    var@4 := copy i
-    var@5 := copy max
-    var@3 := move var@4 < move var@5
+    var@4 := copy i;
+    var@5 := copy max;
+    var@3 := move var@4 < move var@5;
     if (move var@3) {
-      var@6 := copy i
+      var@6 := copy i;
       switch (move var@6) {
         17: u32 => {
           break 0
         }
         _ => {
-          var@7 := copy i
-          s := copy s + copy var@7
-          i := copy i + 1: u32
+          var@7 := copy i;
+          s := copy s + copy var@7;
+          i := copy i + 1: u32;
           continue 0
         }
       }
@@ -630,7 +630,7 @@ fn test_loop2(max : u32) -> u32 {
     else {
       break 0
     }
-  }
+  };
   return
 }
 
@@ -656,22 +656,22 @@ fn test_loop3(max : u32) -> u32 {
   var@18 : (u32, bool);
   var@19 : (u32, bool);
 
-  i := 0: u32
-  j := 0: u32
-  s := 0: u32
+  i := 0: u32;
+  j := 0: u32;
+  s := 0: u32;
   loop {
-    var@5 := copy i
-    var@6 := copy max
-    var@4 := move var@5 < move var@6
+    var@5 := copy i;
+    var@6 := copy max;
+    var@4 := move var@5 < move var@6;
     if (move var@4) {
       loop {
-        var@8 := copy j
-        var@9 := copy max
-        var@7 := move var@8 < move var@9
+        var@8 := copy j;
+        var@9 := copy max;
+        var@7 := move var@8 < move var@9;
         if (move var@7) {
-          var@11 := copy i
-          var@12 := copy j
-          var@10 := copy var@11 + copy var@12
+          var@11 := copy i;
+          var@12 := copy j;
+          var@10 := copy var@11 + copy var@12;
           switch (move var@10) {
             17: u32 => {
               continue 0
@@ -679,26 +679,26 @@ fn test_loop3(max : u32) -> u32 {
             _ => {
               nop
             }
-          }
-          var@14 := copy i
-          s := copy s + copy var@14
-          j := copy j + 1: u32
+          };
+          var@14 := copy i;
+          s := copy s + copy var@14;
+          j := copy j + 1: u32;
           continue 1
         }
         else {
           break 0
         }
-      }
-      j := 0: u32
-      var@17 := copy i
-      s := copy s + copy var@17
-      i := copy i + 1: u32
+      };
+      j := 0: u32;
+      var@17 := copy i;
+      s := copy s + copy var@17;
+      i := copy i + 1: u32;
       continue 0
     }
     else {
       break 0
     }
-  }
+  };
   return
 }
 
@@ -724,22 +724,22 @@ fn test_loop4(max : u32) -> u32 {
   var@18 : (u32, bool);
   var@19 : (u32, bool);
 
-  i := 0: u32
-  j := 0: u32
-  s := 0: u32
+  i := 1: u32;
+  j := 0: u32;
+  s := 0: u32;
   loop {
-    var@5 := copy i
-    var@6 := copy max
-    var@4 := move var@5 < move var@6
+    var@5 := copy i;
+    var@6 := copy max;
+    var@4 := move var@5 < move var@6;
     if (move var@4) {
       loop {
-        var@8 := copy j
-        var@9 := copy max
-        var@7 := move var@8 < move var@9
+        var@8 := copy j;
+        var@9 := copy max;
+        var@7 := move var@8 < move var@9;
         if (move var@7) {
-          var@11 := copy i
-          var@12 := copy j
-          var@10 := copy var@11 + copy var@12
+          var@11 := copy i;
+          var@12 := copy j;
+          var@10 := copy var@11 + copy var@12;
           switch (move var@10) {
             17: u32 => {
               continue 0
@@ -747,26 +747,26 @@ fn test_loop4(max : u32) -> u32 {
             _ => {
               nop
             }
-          }
-          var@14 := copy i
-          s := copy s + copy var@14
-          j := copy j + 1: u32
+          };
+          var@14 := copy i;
+          s := copy s + copy var@14;
+          j := copy j + 1: u32;
           break 1
         }
         else {
           break 0
         }
-      }
-      j := 0: u32
-      var@17 := copy i
-      s := copy s + copy var@17
-      i := copy i + 1: u32
+      };
+      j := 0: u32;
+      var@17 := copy i;
+      s := copy s + copy var@17;
+      i := copy i + 1: u32;
       continue 0
     }
     else {
       break 0
     }
-  }
+  };
   return
 }
 
@@ -788,37 +788,37 @@ fn test_loop5(max : u32) -> u32 {
   var@14 : (u32, bool);
   var@15 : (u32, bool);
 
-  i := 0: u32
-  j := 0: u32
-  s := 0: u32
+  i := 0: u32;
+  j := 0: u32;
+  s := 0: u32;
   loop {
-    var@5 := copy i
-    var@6 := copy max
-    var@4 := move var@5 < move var@6
+    var@5 := copy i;
+    var@6 := copy max;
+    var@4 := move var@5 < move var@6;
     if (move var@4) {
       loop {
-        var@8 := copy j
-        var@9 := copy max
-        var@7 := move var@8 < move var@9
+        var@8 := copy j;
+        var@9 := copy max;
+        var@7 := move var@8 < move var@9;
         if (move var@7) {
-          var@10 := copy j
-          s := copy s + copy var@10
-          j := copy j + 1: u32
+          var@10 := copy j;
+          s := copy s + copy var@10;
+          j := copy j + 1: u32;
           continue 0
         }
         else {
           break 0
         }
-      }
-      var@13 := copy i
-      s := copy s + copy var@13
-      i := copy i + 1: u32
+      };
+      var@13 := copy i;
+      s := copy s + copy var@13;
+      i := copy i + 1: u32;
       continue 0
     }
     else {
       break 0
     }
-  }
+  };
   return
 }
 
@@ -836,30 +836,30 @@ fn test_loop6(max : u32) -> u32 {
   var@10 : (u32, bool);
   var@11 : (u32, bool);
 
-  i := 0: u32
-  s := 0: u32
+  i := 0: u32;
+  s := 0: u32;
   loop {
-    var@4 := copy i
-    var@5 := copy max
-    var@3 := move var@4 < move var@5
+    var@4 := copy i;
+    var@5 := copy max;
+    var@3 := move var@4 < move var@5;
     if (move var@3) {
-      var@7 := copy i
-      var@6 := move var@7 > 3: u32
+      var@7 := copy i;
+      var@6 := move var@7 > 3: u32;
       if (move var@6) {
         break 0
       }
       else {
-        var@8 := copy i
-        s := copy s + copy var@8
-        i := copy i + 1: u32
+        var@8 := copy i;
+        s := copy s + copy var@8;
+        i := copy i + 1: u32;
         continue 0
       }
     }
     else {
       break 0
     }
-  }
-  s := copy s + 1: u32
+  };
+  s := copy s + 1: u32;
   return
 }
 
@@ -867,19 +867,37 @@ fn test_static(x : &'static (u32)) -> &'static (u32) {
   var@0 : &'_ (u32);
   x : &'_ (u32);
 
-  var@0 := copy x
+  var@0 := copy x;
   return
 }
 
 fn test_char() -> char {
   var@0 : char;
 
-  var@0 := a
+  var@0 := a;
   return
 }
 
 [Debug] test_unit_function: test2
 [Debug] 
+**About to evaluate statement**: [
+  x := 23: u32;
+  y := 44: u32;
+  z := 67: u32;
+  var@5 := copy x;
+  (p).x := move var@5;
+  (p).y := 67: u32;
+  (s as test1::Sum::Right).0 := true;
+  set_discriminant(s, 1);
+  (o as test1::One::One).0 := 3: u64;
+  set_discriminant(o, 0);
+  set_discriminant(e0, 0);
+  set_discriminant(enum0, 0);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -897,21 +915,15 @@ fn test_char() -> char {
   enum0 -> ⊥ : test1::Enum ;
 }
 
-About to evaluate statement: x := 23: u32
-y := 44: u32
-z := 67: u32
-var@5 := copy x
-(p).x := move var@5
-(p).y := 67: u32
-(s as test1::Sum::Right).0 := true
-set_discriminant(s, 1)
-(o as test1::One::One).0 := 3: u64
-set_discriminant(o, 0)
-set_discriminant(e0, 0)
-set_discriminant(enum0, 0)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  x := 23: u32
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -929,10 +941,11 @@ return
   enum0 -> ⊥ : test1::Enum ;
 }
 
-About to evaluate statement: x := 23: u32
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -955,6 +968,23 @@ About to evaluate statement: x := 23: u32
 23: u32
 
 [Debug] 
+**About to evaluate statement**: [
+  y := 44: u32;
+  z := 67: u32;
+  var@5 := copy x;
+  (p).x := move var@5;
+  (p).y := 67: u32;
+  (s as test1::Sum::Right).0 := true;
+  set_discriminant(s, 1);
+  (o as test1::One::One).0 := 3: u64;
+  set_discriminant(o, 0);
+  set_discriminant(e0, 0);
+  set_discriminant(enum0, 0);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -972,20 +1002,15 @@ About to evaluate statement: x := 23: u32
   enum0 -> ⊥ : test1::Enum ;
 }
 
-About to evaluate statement: y := 44: u32
-z := 67: u32
-var@5 := copy x
-(p).x := move var@5
-(p).y := 67: u32
-(s as test1::Sum::Right).0 := true
-set_discriminant(s, 1)
-(o as test1::One::One).0 := 3: u64
-set_discriminant(o, 0)
-set_discriminant(e0, 0)
-set_discriminant(enum0, 0)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  y := 44: u32
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -1003,10 +1028,11 @@ return
   enum0 -> ⊥ : test1::Enum ;
 }
 
-About to evaluate statement: y := 44: u32
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -1029,6 +1055,22 @@ About to evaluate statement: y := 44: u32
 44: u32
 
 [Debug] 
+**About to evaluate statement**: [
+  z := 67: u32;
+  var@5 := copy x;
+  (p).x := move var@5;
+  (p).y := 67: u32;
+  (s as test1::Sum::Right).0 := true;
+  set_discriminant(s, 1);
+  (o as test1::One::One).0 := 3: u64;
+  set_discriminant(o, 0);
+  set_discriminant(e0, 0);
+  set_discriminant(enum0, 0);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -1046,19 +1088,15 @@ About to evaluate statement: y := 44: u32
   enum0 -> ⊥ : test1::Enum ;
 }
 
-About to evaluate statement: z := 67: u32
-var@5 := copy x
-(p).x := move var@5
-(p).y := 67: u32
-(s as test1::Sum::Right).0 := true
-set_discriminant(s, 1)
-(o as test1::One::One).0 := 3: u64
-set_discriminant(o, 0)
-set_discriminant(e0, 0)
-set_discriminant(enum0, 0)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  z := 67: u32
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -1076,10 +1114,11 @@ return
   enum0 -> ⊥ : test1::Enum ;
 }
 
-About to evaluate statement: z := 67: u32
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -1102,6 +1141,21 @@ About to evaluate statement: z := 67: u32
 67: u32
 
 [Debug] 
+**About to evaluate statement**: [
+  var@5 := copy x;
+  (p).x := move var@5;
+  (p).y := 67: u32;
+  (s as test1::Sum::Right).0 := true;
+  set_discriminant(s, 1);
+  (o as test1::One::One).0 := 3: u64;
+  set_discriminant(o, 0);
+  set_discriminant(e0, 0);
+  set_discriminant(enum0, 0);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -1119,18 +1173,15 @@ About to evaluate statement: z := 67: u32
   enum0 -> ⊥ : test1::Enum ;
 }
 
-About to evaluate statement: var@5 := copy x
-(p).x := move var@5
-(p).y := 67: u32
-(s as test1::Sum::Right).0 := true
-set_discriminant(s, 1)
-(o as test1::One::One).0 := 3: u64
-set_discriminant(o, 0)
-set_discriminant(e0, 0)
-set_discriminant(enum0, 0)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@5 := copy x
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -1148,10 +1199,11 @@ return
   enum0 -> ⊥ : test1::Enum ;
 }
 
-About to evaluate statement: var@5 := copy x
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -1176,6 +1228,20 @@ copy x
 [Debug] Value to copy:
 23: u32
 [Debug] 
+**About to evaluate statement**: [
+  (p).x := move var@5;
+  (p).y := 67: u32;
+  (s as test1::Sum::Right).0 := true;
+  set_discriminant(s, 1);
+  (o as test1::One::One).0 := 3: u64;
+  set_discriminant(o, 0);
+  set_discriminant(e0, 0);
+  set_discriminant(enum0, 0);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -1193,17 +1259,15 @@ copy x
   enum0 -> ⊥ : test1::Enum ;
 }
 
-About to evaluate statement: (p).x := move var@5
-(p).y := 67: u32
-(s as test1::Sum::Right).0 := true
-set_discriminant(s, 1)
-(o as test1::One::One).0 := 3: u64
-set_discriminant(o, 0)
-set_discriminant(e0, 0)
-set_discriminant(enum0, 0)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  (p).x := move var@5
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -1221,10 +1285,11 @@ return
   enum0 -> ⊥ : test1::Enum ;
 }
 
-About to evaluate statement: (p).x := move var@5
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -1253,6 +1318,19 @@ pe: (Expressions.Field ((Expressions.ProjAdt (0, None)), 0))
 ty: (Types.Adt ((Types.AdtId 0), [],
    [(Types.Integer Types.U32); (Types.Integer Types.U32)]))
 [Debug] 
+**About to evaluate statement**: [
+  (p).y := 67: u32;
+  (s as test1::Sum::Right).0 := true;
+  set_discriminant(s, 1);
+  (o as test1::One::One).0 := 3: u64;
+  set_discriminant(o, 0);
+  set_discriminant(e0, 0);
+  set_discriminant(enum0, 0);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -1270,16 +1348,15 @@ ty: (Types.Adt ((Types.AdtId 0), [],
   enum0 -> ⊥ : test1::Enum ;
 }
 
-About to evaluate statement: (p).y := 67: u32
-(s as test1::Sum::Right).0 := true
-set_discriminant(s, 1)
-(o as test1::One::One).0 := 3: u64
-set_discriminant(o, 0)
-set_discriminant(e0, 0)
-set_discriminant(enum0, 0)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  (p).y := 67: u32
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -1297,10 +1374,11 @@ return
   enum0 -> ⊥ : test1::Enum ;
 }
 
-About to evaluate statement: (p).y := 67: u32
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -1323,6 +1401,18 @@ About to evaluate statement: (p).y := 67: u32
 67: u32
 
 [Debug] 
+**About to evaluate statement**: [
+  (s as test1::Sum::Right).0 := true;
+  set_discriminant(s, 1);
+  (o as test1::One::One).0 := 3: u64;
+  set_discriminant(o, 0);
+  set_discriminant(e0, 0);
+  set_discriminant(enum0, 0);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -1340,15 +1430,15 @@ About to evaluate statement: (p).y := 67: u32
   enum0 -> ⊥ : test1::Enum ;
 }
 
-About to evaluate statement: (s as test1::Sum::Right).0 := true
-set_discriminant(s, 1)
-(o as test1::One::One).0 := 3: u64
-set_discriminant(o, 0)
-set_discriminant(e0, 0)
-set_discriminant(enum0, 0)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  (s as test1::Sum::Right).0 := true
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -1366,10 +1456,11 @@ return
   enum0 -> ⊥ : test1::Enum ;
 }
 
-About to evaluate statement: (s as test1::Sum::Right).0 := true
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -1395,6 +1486,17 @@ true
 pe: (Expressions.Field ((Expressions.ProjAdt (6, (Some 1))), 0))
 ty: (Types.Adt ((Types.AdtId 6), [], [(Types.Integer Types.U32); Types.Bool]))
 [Debug] 
+**About to evaluate statement**: [
+  set_discriminant(s, 1);
+  (o as test1::One::One).0 := 3: u64;
+  set_discriminant(o, 0);
+  set_discriminant(e0, 0);
+  set_discriminant(enum0, 0);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -1412,14 +1514,15 @@ ty: (Types.Adt ((Types.AdtId 6), [], [(Types.Integer Types.U32); Types.Bool]))
   enum0 -> ⊥ : test1::Enum ;
 }
 
-About to evaluate statement: set_discriminant(s, 1)
-(o as test1::One::One).0 := 3: u64
-set_discriminant(o, 0)
-set_discriminant(e0, 0)
-set_discriminant(enum0, 0)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  set_discriminant(s, 1)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -1437,9 +1540,19 @@ return
   enum0 -> ⊥ : test1::Enum ;
 }
 
-About to evaluate statement: set_discriminant(s, 1)
+
 
 [Debug] 
+**About to evaluate statement**: [
+  (o as test1::One::One).0 := 3: u64;
+  set_discriminant(o, 0);
+  set_discriminant(e0, 0);
+  set_discriminant(enum0, 0);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -1457,13 +1570,15 @@ About to evaluate statement: set_discriminant(s, 1)
   enum0 -> ⊥ : test1::Enum ;
 }
 
-About to evaluate statement: (o as test1::One::One).0 := 3: u64
-set_discriminant(o, 0)
-set_discriminant(e0, 0)
-set_discriminant(enum0, 0)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  (o as test1::One::One).0 := 3: u64
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -1481,10 +1596,11 @@ return
   enum0 -> ⊥ : test1::Enum ;
 }
 
-About to evaluate statement: (o as test1::One::One).0 := 3: u64
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -1510,6 +1626,15 @@ About to evaluate statement: (o as test1::One::One).0 := 3: u64
 pe: (Expressions.Field ((Expressions.ProjAdt (2, (Some 0))), 0))
 ty: (Types.Adt ((Types.AdtId 2), [], [(Types.Integer Types.U64)]))
 [Debug] 
+**About to evaluate statement**: [
+  set_discriminant(o, 0);
+  set_discriminant(e0, 0);
+  set_discriminant(enum0, 0);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -1527,12 +1652,15 @@ ty: (Types.Adt ((Types.AdtId 2), [], [(Types.Integer Types.U64)]))
   enum0 -> ⊥ : test1::Enum ;
 }
 
-About to evaluate statement: set_discriminant(o, 0)
-set_discriminant(e0, 0)
-set_discriminant(enum0, 0)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  set_discriminant(o, 0)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -1550,9 +1678,17 @@ return
   enum0 -> ⊥ : test1::Enum ;
 }
 
-About to evaluate statement: set_discriminant(o, 0)
+
 
 [Debug] 
+**About to evaluate statement**: [
+  set_discriminant(e0, 0);
+  set_discriminant(enum0, 0);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -1570,11 +1706,15 @@ About to evaluate statement: set_discriminant(o, 0)
   enum0 -> ⊥ : test1::Enum ;
 }
 
-About to evaluate statement: set_discriminant(e0, 0)
-set_discriminant(enum0, 0)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  set_discriminant(e0, 0)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -1592,9 +1732,16 @@ return
   enum0 -> ⊥ : test1::Enum ;
 }
 
-About to evaluate statement: set_discriminant(e0, 0)
+
 
 [Debug] 
+**About to evaluate statement**: [
+  set_discriminant(enum0, 0);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -1612,10 +1759,15 @@ About to evaluate statement: set_discriminant(e0, 0)
   enum0 -> ⊥ : test1::Enum ;
 }
 
-About to evaluate statement: set_discriminant(enum0, 0)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  set_discriminant(enum0, 0)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -1633,9 +1785,15 @@ return
   enum0 -> ⊥ : test1::Enum ;
 }
 
-About to evaluate statement: set_discriminant(enum0, 0)
+
 
 [Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -1653,10 +1811,25 @@ About to evaluate statement: set_discriminant(enum0, 0)
   enum0 -> test1::Enum::Variant1 ;
 }
 
-About to evaluate statement: return
+
 
 [Debug] test_unit_function: test3
 [Debug] 
+**About to evaluate statement**: [
+  x := move get_max(4: u32, 3: u32);
+  y := move get_max(10: u32, 11: u32);
+  var@4 := copy x;
+  var@5 := copy y;
+  z := copy var@4 + copy var@5;
+  var@9 := copy z;
+  var@8 := move var@9 == 15: u32;
+  var@7 := ¬ move var@8;
+  assert(¬move var@7);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -1673,18 +1846,15 @@ About to evaluate statement: return
   var@9 -> ⊥ : u32 ;
 }
 
-About to evaluate statement: x := move get_max(4: u32, 3: u32)
-y := move get_max(10: u32, 11: u32)
-var@4 := copy x
-var@5 := copy y
-z := copy var@4 + copy var@5
-var@9 := copy z
-var@8 := move var@9 == 15: u32
-var@7 := ¬ move var@8
-assert(¬move var@7)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  x := move get_max(4: u32, 3: u32)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -1701,10 +1871,11 @@ return
   var@9 -> ⊥ : u32 ;
 }
 
-About to evaluate statement: x := move get_max(4: u32, 3: u32)
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -1727,6 +1898,7 @@ About to evaluate statement: x := move get_max(4: u32, 3: u32)
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -1748,6 +1920,21 @@ About to evaluate statement: x := move get_max(4: u32, 3: u32)
 3: u32
 
 [Debug] 
+**About to evaluate statement**: [
+  var@4 := copy x;
+  var@5 := copy y;
+  var@3 := move var@4 >= move var@5;
+  if (move var@3) {
+    var@0 := copy x
+  }
+  else {
+    var@0 := copy y
+  };
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -1774,18 +1961,15 @@ About to evaluate statement: x := move get_max(4: u32, 3: u32)
   var@5 -> ⊥ : u32 ;
 }
 
-About to evaluate statement: var@4 := copy x
-var@5 := copy y
-var@3 := move var@4 >= move var@5
-if (move var@3) {
-  var@0 := copy x
-}
-else {
-  var@0 := copy y
-}
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@4 := copy x
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -1812,10 +1996,11 @@ return
   var@5 -> ⊥ : u32 ;
 }
 
-About to evaluate statement: var@4 := copy x
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -1849,6 +2034,20 @@ copy x
 [Debug] Value to copy:
 4: u32
 [Debug] 
+**About to evaluate statement**: [
+  var@5 := copy y;
+  var@3 := move var@4 >= move var@5;
+  if (move var@3) {
+    var@0 := copy x
+  }
+  else {
+    var@0 := copy y
+  };
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -1875,17 +2074,15 @@ copy x
   var@5 -> ⊥ : u32 ;
 }
 
-About to evaluate statement: var@5 := copy y
-var@3 := move var@4 >= move var@5
-if (move var@3) {
-  var@0 := copy x
-}
-else {
-  var@0 := copy y
-}
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@5 := copy y
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -1912,10 +2109,11 @@ return
   var@5 -> ⊥ : u32 ;
 }
 
-About to evaluate statement: var@5 := copy y
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -1949,6 +2147,19 @@ copy y
 [Debug] Value to copy:
 3: u32
 [Debug] 
+**About to evaluate statement**: [
+  var@3 := move var@4 >= move var@5;
+  if (move var@3) {
+    var@0 := copy x
+  }
+  else {
+    var@0 := copy y
+  };
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -1975,16 +2186,15 @@ copy y
   var@5 -> 3: u32 ;
 }
 
-About to evaluate statement: var@3 := move var@4 >= move var@5
-if (move var@3) {
-  var@0 := copy x
-}
-else {
-  var@0 := copy y
-}
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@3 := move var@4 >= move var@5
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -2011,10 +2221,11 @@ return
   var@5 -> 3: u32 ;
 }
 
-About to evaluate statement: var@3 := move var@4 >= move var@5
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -2049,6 +2260,7 @@ move var@4
 4: u32
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -2082,6 +2294,18 @@ move var@5
 [Debug] Value to move:
 3: u32
 [Debug] 
+**About to evaluate statement**: [
+  if (move var@3) {
+    var@0 := copy x
+  }
+  else {
+    var@0 := copy y
+  };
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -2108,15 +2332,20 @@ move var@5
   var@5 -> ⊥ : u32 ;
 }
 
-About to evaluate statement: if (move var@3) {
-  var@0 := copy x
-}
-else {
-  var@0 := copy y
-}
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  if (move var@3) {
+    var@0 := copy x
+  }
+  else {
+    var@0 := copy y
+  }
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -2143,15 +2372,11 @@ return
   var@5 -> ⊥ : u32 ;
 }
 
-About to evaluate statement: if (move var@3) {
-  var@0 := copy x
-}
-else {
-  var@0 := copy y
-}
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -2185,6 +2410,12 @@ move var@3
 [Debug] Value to move:
 true
 [Debug] 
+**About to evaluate statement**: [
+  var@0 := copy x
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -2211,10 +2442,11 @@ true
   var@5 -> ⊥ : u32 ;
 }
 
-About to evaluate statement: var@0 := copy x
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -2248,6 +2480,12 @@ copy x
 [Debug] Value to copy:
 4: u32
 [Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -2274,9 +2512,10 @@ copy x
   var@5 -> ⊥ : u32 ;
 }
 
-About to evaluate statement: return
+
 
 [Debug] ctx_pop_frame:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -2310,6 +2549,7 @@ About to evaluate statement: return
 [Debug] drop_value: place: y
 [Debug] drop_value: place: x
 [Debug] ctx_pop_frame: after dropping local variables:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -2338,6 +2578,7 @@ About to evaluate statement: return
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -2371,6 +2612,20 @@ move var@0
 [Debug] Value to move:
 4: u32
 [Debug] 
+**About to evaluate statement**: [
+  y := move get_max(10: u32, 11: u32);
+  var@4 := copy x;
+  var@5 := copy y;
+  z := copy var@4 + copy var@5;
+  var@9 := copy z;
+  var@8 := move var@9 == 15: u32;
+  var@7 := ¬ move var@8;
+  assert(¬move var@7);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -2387,17 +2642,15 @@ move var@0
   var@9 -> ⊥ : u32 ;
 }
 
-About to evaluate statement: y := move get_max(10: u32, 11: u32)
-var@4 := copy x
-var@5 := copy y
-z := copy var@4 + copy var@5
-var@9 := copy z
-var@8 := move var@9 == 15: u32
-var@7 := ¬ move var@8
-assert(¬move var@7)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  y := move get_max(10: u32, 11: u32)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -2414,10 +2667,11 @@ return
   var@9 -> ⊥ : u32 ;
 }
 
-About to evaluate statement: y := move get_max(10: u32, 11: u32)
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -2440,6 +2694,7 @@ About to evaluate statement: y := move get_max(10: u32, 11: u32)
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -2461,6 +2716,21 @@ About to evaluate statement: y := move get_max(10: u32, 11: u32)
 11: u32
 
 [Debug] 
+**About to evaluate statement**: [
+  var@4 := copy x;
+  var@5 := copy y;
+  var@3 := move var@4 >= move var@5;
+  if (move var@3) {
+    var@0 := copy x
+  }
+  else {
+    var@0 := copy y
+  };
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -2487,18 +2757,15 @@ About to evaluate statement: y := move get_max(10: u32, 11: u32)
   var@5 -> ⊥ : u32 ;
 }
 
-About to evaluate statement: var@4 := copy x
-var@5 := copy y
-var@3 := move var@4 >= move var@5
-if (move var@3) {
-  var@0 := copy x
-}
-else {
-  var@0 := copy y
-}
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@4 := copy x
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -2525,10 +2792,11 @@ return
   var@5 -> ⊥ : u32 ;
 }
 
-About to evaluate statement: var@4 := copy x
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -2562,6 +2830,20 @@ copy x
 [Debug] Value to copy:
 10: u32
 [Debug] 
+**About to evaluate statement**: [
+  var@5 := copy y;
+  var@3 := move var@4 >= move var@5;
+  if (move var@3) {
+    var@0 := copy x
+  }
+  else {
+    var@0 := copy y
+  };
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -2588,17 +2870,15 @@ copy x
   var@5 -> ⊥ : u32 ;
 }
 
-About to evaluate statement: var@5 := copy y
-var@3 := move var@4 >= move var@5
-if (move var@3) {
-  var@0 := copy x
-}
-else {
-  var@0 := copy y
-}
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@5 := copy y
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -2625,10 +2905,11 @@ return
   var@5 -> ⊥ : u32 ;
 }
 
-About to evaluate statement: var@5 := copy y
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -2662,6 +2943,19 @@ copy y
 [Debug] Value to copy:
 11: u32
 [Debug] 
+**About to evaluate statement**: [
+  var@3 := move var@4 >= move var@5;
+  if (move var@3) {
+    var@0 := copy x
+  }
+  else {
+    var@0 := copy y
+  };
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -2688,16 +2982,15 @@ copy y
   var@5 -> 11: u32 ;
 }
 
-About to evaluate statement: var@3 := move var@4 >= move var@5
-if (move var@3) {
-  var@0 := copy x
-}
-else {
-  var@0 := copy y
-}
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@3 := move var@4 >= move var@5
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -2724,10 +3017,11 @@ return
   var@5 -> 11: u32 ;
 }
 
-About to evaluate statement: var@3 := move var@4 >= move var@5
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -2762,6 +3056,7 @@ move var@4
 10: u32
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -2795,6 +3090,18 @@ move var@5
 [Debug] Value to move:
 11: u32
 [Debug] 
+**About to evaluate statement**: [
+  if (move var@3) {
+    var@0 := copy x
+  }
+  else {
+    var@0 := copy y
+  };
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -2821,15 +3128,20 @@ move var@5
   var@5 -> ⊥ : u32 ;
 }
 
-About to evaluate statement: if (move var@3) {
-  var@0 := copy x
-}
-else {
-  var@0 := copy y
-}
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  if (move var@3) {
+    var@0 := copy x
+  }
+  else {
+    var@0 := copy y
+  }
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -2856,15 +3168,11 @@ return
   var@5 -> ⊥ : u32 ;
 }
 
-About to evaluate statement: if (move var@3) {
-  var@0 := copy x
-}
-else {
-  var@0 := copy y
-}
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -2898,6 +3206,12 @@ move var@3
 [Debug] Value to move:
 false
 [Debug] 
+**About to evaluate statement**: [
+  var@0 := copy y
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -2924,10 +3238,11 @@ false
   var@5 -> ⊥ : u32 ;
 }
 
-About to evaluate statement: var@0 := copy y
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -2961,6 +3276,12 @@ copy y
 [Debug] Value to copy:
 11: u32
 [Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -2987,9 +3308,10 @@ copy y
   var@5 -> ⊥ : u32 ;
 }
 
-About to evaluate statement: return
+
 
 [Debug] ctx_pop_frame:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -3023,6 +3345,7 @@ About to evaluate statement: return
 [Debug] drop_value: place: y
 [Debug] drop_value: place: x
 [Debug] ctx_pop_frame: after dropping local variables:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -3051,6 +3374,7 @@ About to evaluate statement: return
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -3084,6 +3408,19 @@ move var@0
 [Debug] Value to move:
 11: u32
 [Debug] 
+**About to evaluate statement**: [
+  var@4 := copy x;
+  var@5 := copy y;
+  z := copy var@4 + copy var@5;
+  var@9 := copy z;
+  var@8 := move var@9 == 15: u32;
+  var@7 := ¬ move var@8;
+  assert(¬move var@7);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -3100,16 +3437,15 @@ move var@0
   var@9 -> ⊥ : u32 ;
 }
 
-About to evaluate statement: var@4 := copy x
-var@5 := copy y
-z := copy var@4 + copy var@5
-var@9 := copy z
-var@8 := move var@9 == 15: u32
-var@7 := ¬ move var@8
-assert(¬move var@7)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@4 := copy x
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -3126,10 +3462,11 @@ return
   var@9 -> ⊥ : u32 ;
 }
 
-About to evaluate statement: var@4 := copy x
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -3153,6 +3490,18 @@ copy x
 [Debug] Value to copy:
 4: u32
 [Debug] 
+**About to evaluate statement**: [
+  var@5 := copy y;
+  z := copy var@4 + copy var@5;
+  var@9 := copy z;
+  var@8 := move var@9 == 15: u32;
+  var@7 := ¬ move var@8;
+  assert(¬move var@7);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -3169,15 +3518,15 @@ copy x
   var@9 -> ⊥ : u32 ;
 }
 
-About to evaluate statement: var@5 := copy y
-z := copy var@4 + copy var@5
-var@9 := copy z
-var@8 := move var@9 == 15: u32
-var@7 := ¬ move var@8
-assert(¬move var@7)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@5 := copy y
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -3194,10 +3543,11 @@ return
   var@9 -> ⊥ : u32 ;
 }
 
-About to evaluate statement: var@5 := copy y
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -3221,6 +3571,17 @@ copy y
 [Debug] Value to copy:
 11: u32
 [Debug] 
+**About to evaluate statement**: [
+  z := copy var@4 + copy var@5;
+  var@9 := copy z;
+  var@8 := move var@9 == 15: u32;
+  var@7 := ¬ move var@8;
+  assert(¬move var@7);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -3237,14 +3598,15 @@ copy y
   var@9 -> ⊥ : u32 ;
 }
 
-About to evaluate statement: z := copy var@4 + copy var@5
-var@9 := copy z
-var@8 := move var@9 == 15: u32
-var@7 := ¬ move var@8
-assert(¬move var@7)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  z := copy var@4 + copy var@5
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -3261,10 +3623,11 @@ return
   var@9 -> ⊥ : u32 ;
 }
 
-About to evaluate statement: z := copy var@4 + copy var@5
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -3289,6 +3652,7 @@ copy var@4
 4: u32
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -3312,6 +3676,16 @@ copy var@5
 [Debug] Value to copy:
 11: u32
 [Debug] 
+**About to evaluate statement**: [
+  var@9 := copy z;
+  var@8 := move var@9 == 15: u32;
+  var@7 := ¬ move var@8;
+  assert(¬move var@7);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -3328,13 +3702,15 @@ copy var@5
   var@9 -> ⊥ : u32 ;
 }
 
-About to evaluate statement: var@9 := copy z
-var@8 := move var@9 == 15: u32
-var@7 := ¬ move var@8
-assert(¬move var@7)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@9 := copy z
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -3351,10 +3727,11 @@ return
   var@9 -> ⊥ : u32 ;
 }
 
-About to evaluate statement: var@9 := copy z
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -3378,6 +3755,15 @@ copy z
 [Debug] Value to copy:
 15: u32
 [Debug] 
+**About to evaluate statement**: [
+  var@8 := move var@9 == 15: u32;
+  var@7 := ¬ move var@8;
+  assert(¬move var@7);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -3394,12 +3780,15 @@ copy z
   var@9 -> 15: u32 ;
 }
 
-About to evaluate statement: var@8 := move var@9 == 15: u32
-var@7 := ¬ move var@8
-assert(¬move var@7)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@8 := move var@9 == 15: u32
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -3416,10 +3805,11 @@ return
   var@9 -> 15: u32 ;
 }
 
-About to evaluate statement: var@8 := move var@9 == 15: u32
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -3444,6 +3834,7 @@ move var@9
 15: u32
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -3465,6 +3856,14 @@ move var@9
 15: u32
 
 [Debug] 
+**About to evaluate statement**: [
+  var@7 := ¬ move var@8;
+  assert(¬move var@7);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -3481,11 +3880,15 @@ move var@9
   var@9 -> ⊥ : u32 ;
 }
 
-About to evaluate statement: var@7 := ¬ move var@8
-assert(¬move var@7)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@7 := ¬ move var@8
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -3502,10 +3905,11 @@ return
   var@9 -> ⊥ : u32 ;
 }
 
-About to evaluate statement: var@7 := ¬ move var@8
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -3529,6 +3933,13 @@ move var@8
 [Debug] Value to move:
 true
 [Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@7);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -3545,10 +3956,15 @@ true
   var@9 -> ⊥ : u32 ;
 }
 
-About to evaluate statement: assert(¬move var@7)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@7)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -3565,10 +3981,11 @@ return
   var@9 -> ⊥ : u32 ;
 }
 
-About to evaluate statement: assert(¬move var@7)
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -3592,6 +4009,12 @@ move var@7
 [Debug] Value to move:
 false
 [Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -3608,10 +4031,18 @@ false
   var@9 -> ⊥ : u32 ;
 }
 
-About to evaluate statement: return
+
 
 [Debug] test_unit_function: test_neg1
 [Debug] 
+**About to evaluate statement**: [
+  x := 3: i32;
+  y := -3: i32;
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -3621,11 +4052,15 @@ About to evaluate statement: return
   y -> ⊥ : i32 ;
 }
 
-About to evaluate statement: x := 3: i32
-y := -3: i32
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  x := 3: i32
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -3635,10 +4070,11 @@ return
   y -> ⊥ : i32 ;
 }
 
-About to evaluate statement: x := 3: i32
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -3653,6 +4089,13 @@ About to evaluate statement: x := 3: i32
 3: i32
 
 [Debug] 
+**About to evaluate statement**: [
+  y := -3: i32;
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -3662,10 +4105,15 @@ About to evaluate statement: x := 3: i32
   y -> ⊥ : i32 ;
 }
 
-About to evaluate statement: y := -3: i32
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  y := -3: i32
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -3675,10 +4123,11 @@ return
   y -> ⊥ : i32 ;
 }
 
-About to evaluate statement: y := -3: i32
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -3693,6 +4142,12 @@ About to evaluate statement: y := -3: i32
 -3: i32
 
 [Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -3702,10 +4157,24 @@ About to evaluate statement: y := -3: i32
   y -> -3: i32 ;
 }
 
-About to evaluate statement: return
+
 
 [Debug] test_unit_function: refs_test1
 [Debug] 
+**About to evaluate statement**: [
+  x := 0: i32;
+  px := &mut x;
+  ppx := &mut px;
+  *(*(ppx)) := 1: i32;
+  var@6 := copy x;
+  var@5 := move var@6 == 1: i32;
+  var@4 := ¬ move var@5;
+  assert(¬move var@4);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -3719,17 +4188,15 @@ About to evaluate statement: return
   var@6 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: x := 0: i32
-px := &mut x
-ppx := &mut px
-*(*(ppx)) := 1: i32
-var@6 := copy x
-var@5 := move var@6 == 1: i32
-var@4 := ¬ move var@5
-assert(¬move var@4)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  x := 0: i32
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -3743,10 +4210,11 @@ return
   var@6 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: x := 0: i32
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -3765,6 +4233,19 @@ About to evaluate statement: x := 0: i32
 0: i32
 
 [Debug] 
+**About to evaluate statement**: [
+  px := &mut x;
+  ppx := &mut px;
+  *(*(ppx)) := 1: i32;
+  var@6 := copy x;
+  var@5 := move var@6 == 1: i32;
+  var@4 := ¬ move var@5;
+  assert(¬move var@4);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -3778,16 +4259,15 @@ About to evaluate statement: x := 0: i32
   var@6 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: px := &mut x
-ppx := &mut px
-*(*(ppx)) := 1: i32
-var@6 := copy x
-var@5 := move var@6 == 1: i32
-var@4 := ¬ move var@5
-assert(¬move var@4)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  px := &mut x
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -3801,9 +4281,21 @@ return
   var@6 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: px := &mut x
+
 
 [Debug] 
+**About to evaluate statement**: [
+  ppx := &mut px;
+  *(*(ppx)) := 1: i32;
+  var@6 := copy x;
+  var@5 := move var@6 == 1: i32;
+  var@4 := ¬ move var@5;
+  assert(¬move var@4);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -3817,15 +4309,15 @@ About to evaluate statement: px := &mut x
   var@6 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: ppx := &mut px
-*(*(ppx)) := 1: i32
-var@6 := copy x
-var@5 := move var@6 == 1: i32
-var@4 := ¬ move var@5
-assert(¬move var@4)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  ppx := &mut px
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -3839,9 +4331,20 @@ return
   var@6 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: ppx := &mut px
+
 
 [Debug] 
+**About to evaluate statement**: [
+  *(*(ppx)) := 1: i32;
+  var@6 := copy x;
+  var@5 := move var@6 == 1: i32;
+  var@4 := ¬ move var@5;
+  assert(¬move var@4);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -3855,14 +4358,15 @@ About to evaluate statement: ppx := &mut px
   var@6 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: *(*(ppx)) := 1: i32
-var@6 := copy x
-var@5 := move var@6 == 1: i32
-var@4 := ¬ move var@5
-assert(¬move var@4)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  *(*(ppx)) := 1: i32
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -3876,10 +4380,11 @@ return
   var@6 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: *(*(ppx)) := 1: i32
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -3898,6 +4403,16 @@ About to evaluate statement: *(*(ppx)) := 1: i32
 1: i32
 
 [Debug] 
+**About to evaluate statement**: [
+  var@6 := copy x;
+  var@5 := move var@6 == 1: i32;
+  var@4 := ¬ move var@5;
+  assert(¬move var@4);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -3911,13 +4426,15 @@ About to evaluate statement: *(*(ppx)) := 1: i32
   var@6 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@6 := copy x
-var@5 := move var@6 == 1: i32
-var@4 := ¬ move var@5
-assert(¬move var@4)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@6 := copy x
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -3931,10 +4448,11 @@ return
   var@6 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@6 := copy x
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -3955,6 +4473,15 @@ copy x
 [Debug] Value to copy:
 1: i32
 [Debug] 
+**About to evaluate statement**: [
+  var@5 := move var@6 == 1: i32;
+  var@4 := ¬ move var@5;
+  assert(¬move var@4);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -3968,12 +4495,15 @@ copy x
   var@6 -> 1: i32 ;
 }
 
-About to evaluate statement: var@5 := move var@6 == 1: i32
-var@4 := ¬ move var@5
-assert(¬move var@4)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@5 := move var@6 == 1: i32
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -3987,10 +4517,11 @@ return
   var@6 -> 1: i32 ;
 }
 
-About to evaluate statement: var@5 := move var@6 == 1: i32
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -4012,6 +4543,7 @@ move var@6
 1: i32
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -4030,6 +4562,14 @@ move var@6
 1: i32
 
 [Debug] 
+**About to evaluate statement**: [
+  var@4 := ¬ move var@5;
+  assert(¬move var@4);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -4043,11 +4583,15 @@ move var@6
   var@6 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@4 := ¬ move var@5
-assert(¬move var@4)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@4 := ¬ move var@5
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -4061,10 +4605,11 @@ return
   var@6 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@4 := ¬ move var@5
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -4085,6 +4630,13 @@ move var@5
 [Debug] Value to move:
 true
 [Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@4);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -4098,10 +4650,15 @@ true
   var@6 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: assert(¬move var@4)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@4)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -4115,10 +4672,11 @@ return
   var@6 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: assert(¬move var@4)
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -4139,6 +4697,12 @@ move var@4
 [Debug] Value to move:
 false
 [Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -4152,10 +4716,40 @@ false
   var@6 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: return
+
 
 [Debug] test_unit_function: refs_test2
 [Debug] 
+**About to evaluate statement**: [
+  x := 0: i32;
+  y := 1: i32;
+  px := &mut x;
+  py := &mut y;
+  ppx := &mut px;
+  var@6 := &mut *(py);
+  *(ppx) := move var@6;
+  *(*(ppx)) := 2: i32;
+  var@9 := copy *(px);
+  var@8 := move var@9 == 2: i32;
+  var@7 := ¬ move var@8;
+  assert(¬move var@7);
+  var@12 := copy x;
+  var@11 := move var@12 == 0: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy *(py);
+  var@14 := move var@15 == 2: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 2: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -4181,33 +4775,15 @@ About to evaluate statement: return
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: x := 0: i32
-y := 1: i32
-px := &mut x
-py := &mut y
-ppx := &mut px
-var@6 := &mut *(py)
-*(ppx) := move var@6
-*(*(ppx)) := 2: i32
-var@9 := copy *(px)
-var@8 := move var@9 == 2: i32
-var@7 := ¬ move var@8
-assert(¬move var@7)
-var@12 := copy x
-var@11 := move var@12 == 0: i32
-var@10 := ¬ move var@11
-assert(¬move var@10)
-var@15 := copy *(py)
-var@14 := move var@15 == 2: i32
-var@13 := ¬ move var@14
-assert(¬move var@13)
-var@18 := copy y
-var@17 := move var@18 == 2: i32
-var@16 := ¬ move var@17
-assert(¬move var@16)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  x := 0: i32
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -4233,10 +4809,11 @@ return
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: x := 0: i32
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -4267,6 +4844,35 @@ About to evaluate statement: x := 0: i32
 0: i32
 
 [Debug] 
+**About to evaluate statement**: [
+  y := 1: i32;
+  px := &mut x;
+  py := &mut y;
+  ppx := &mut px;
+  var@6 := &mut *(py);
+  *(ppx) := move var@6;
+  *(*(ppx)) := 2: i32;
+  var@9 := copy *(px);
+  var@8 := move var@9 == 2: i32;
+  var@7 := ¬ move var@8;
+  assert(¬move var@7);
+  var@12 := copy x;
+  var@11 := move var@12 == 0: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy *(py);
+  var@14 := move var@15 == 2: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 2: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -4292,32 +4898,15 @@ About to evaluate statement: x := 0: i32
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: y := 1: i32
-px := &mut x
-py := &mut y
-ppx := &mut px
-var@6 := &mut *(py)
-*(ppx) := move var@6
-*(*(ppx)) := 2: i32
-var@9 := copy *(px)
-var@8 := move var@9 == 2: i32
-var@7 := ¬ move var@8
-assert(¬move var@7)
-var@12 := copy x
-var@11 := move var@12 == 0: i32
-var@10 := ¬ move var@11
-assert(¬move var@10)
-var@15 := copy *(py)
-var@14 := move var@15 == 2: i32
-var@13 := ¬ move var@14
-assert(¬move var@13)
-var@18 := copy y
-var@17 := move var@18 == 2: i32
-var@16 := ¬ move var@17
-assert(¬move var@16)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  y := 1: i32
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -4343,10 +4932,11 @@ return
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: y := 1: i32
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -4377,6 +4967,34 @@ About to evaluate statement: y := 1: i32
 1: i32
 
 [Debug] 
+**About to evaluate statement**: [
+  px := &mut x;
+  py := &mut y;
+  ppx := &mut px;
+  var@6 := &mut *(py);
+  *(ppx) := move var@6;
+  *(*(ppx)) := 2: i32;
+  var@9 := copy *(px);
+  var@8 := move var@9 == 2: i32;
+  var@7 := ¬ move var@8;
+  assert(¬move var@7);
+  var@12 := copy x;
+  var@11 := move var@12 == 0: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy *(py);
+  var@14 := move var@15 == 2: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 2: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -4402,31 +5020,15 @@ About to evaluate statement: y := 1: i32
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: px := &mut x
-py := &mut y
-ppx := &mut px
-var@6 := &mut *(py)
-*(ppx) := move var@6
-*(*(ppx)) := 2: i32
-var@9 := copy *(px)
-var@8 := move var@9 == 2: i32
-var@7 := ¬ move var@8
-assert(¬move var@7)
-var@12 := copy x
-var@11 := move var@12 == 0: i32
-var@10 := ¬ move var@11
-assert(¬move var@10)
-var@15 := copy *(py)
-var@14 := move var@15 == 2: i32
-var@13 := ¬ move var@14
-assert(¬move var@13)
-var@18 := copy y
-var@17 := move var@18 == 2: i32
-var@16 := ¬ move var@17
-assert(¬move var@16)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  px := &mut x
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -4452,9 +5054,36 @@ return
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: px := &mut x
+
 
 [Debug] 
+**About to evaluate statement**: [
+  py := &mut y;
+  ppx := &mut px;
+  var@6 := &mut *(py);
+  *(ppx) := move var@6;
+  *(*(ppx)) := 2: i32;
+  var@9 := copy *(px);
+  var@8 := move var@9 == 2: i32;
+  var@7 := ¬ move var@8;
+  assert(¬move var@7);
+  var@12 := copy x;
+  var@11 := move var@12 == 0: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy *(py);
+  var@14 := move var@15 == 2: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 2: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -4480,30 +5109,15 @@ About to evaluate statement: px := &mut x
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: py := &mut y
-ppx := &mut px
-var@6 := &mut *(py)
-*(ppx) := move var@6
-*(*(ppx)) := 2: i32
-var@9 := copy *(px)
-var@8 := move var@9 == 2: i32
-var@7 := ¬ move var@8
-assert(¬move var@7)
-var@12 := copy x
-var@11 := move var@12 == 0: i32
-var@10 := ¬ move var@11
-assert(¬move var@10)
-var@15 := copy *(py)
-var@14 := move var@15 == 2: i32
-var@13 := ¬ move var@14
-assert(¬move var@13)
-var@18 := copy y
-var@17 := move var@18 == 2: i32
-var@16 := ¬ move var@17
-assert(¬move var@16)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  py := &mut y
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -4529,9 +5143,35 @@ return
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: py := &mut y
+
 
 [Debug] 
+**About to evaluate statement**: [
+  ppx := &mut px;
+  var@6 := &mut *(py);
+  *(ppx) := move var@6;
+  *(*(ppx)) := 2: i32;
+  var@9 := copy *(px);
+  var@8 := move var@9 == 2: i32;
+  var@7 := ¬ move var@8;
+  assert(¬move var@7);
+  var@12 := copy x;
+  var@11 := move var@12 == 0: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy *(py);
+  var@14 := move var@15 == 2: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 2: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -4557,29 +5197,15 @@ About to evaluate statement: py := &mut y
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: ppx := &mut px
-var@6 := &mut *(py)
-*(ppx) := move var@6
-*(*(ppx)) := 2: i32
-var@9 := copy *(px)
-var@8 := move var@9 == 2: i32
-var@7 := ¬ move var@8
-assert(¬move var@7)
-var@12 := copy x
-var@11 := move var@12 == 0: i32
-var@10 := ¬ move var@11
-assert(¬move var@10)
-var@15 := copy *(py)
-var@14 := move var@15 == 2: i32
-var@13 := ¬ move var@14
-assert(¬move var@13)
-var@18 := copy y
-var@17 := move var@18 == 2: i32
-var@16 := ¬ move var@17
-assert(¬move var@16)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  ppx := &mut px
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -4605,9 +5231,34 @@ return
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: ppx := &mut px
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@6 := &mut *(py);
+  *(ppx) := move var@6;
+  *(*(ppx)) := 2: i32;
+  var@9 := copy *(px);
+  var@8 := move var@9 == 2: i32;
+  var@7 := ¬ move var@8;
+  assert(¬move var@7);
+  var@12 := copy x;
+  var@11 := move var@12 == 0: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy *(py);
+  var@14 := move var@15 == 2: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 2: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -4633,28 +5284,15 @@ About to evaluate statement: ppx := &mut px
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@6 := &mut *(py)
-*(ppx) := move var@6
-*(*(ppx)) := 2: i32
-var@9 := copy *(px)
-var@8 := move var@9 == 2: i32
-var@7 := ¬ move var@8
-assert(¬move var@7)
-var@12 := copy x
-var@11 := move var@12 == 0: i32
-var@10 := ¬ move var@11
-assert(¬move var@10)
-var@15 := copy *(py)
-var@14 := move var@15 == 2: i32
-var@13 := ¬ move var@14
-assert(¬move var@13)
-var@18 := copy y
-var@17 := move var@18 == 2: i32
-var@16 := ¬ move var@17
-assert(¬move var@16)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@6 := &mut *(py)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -4680,9 +5318,33 @@ return
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@6 := &mut *(py)
+
 
 [Debug] 
+**About to evaluate statement**: [
+  *(ppx) := move var@6;
+  *(*(ppx)) := 2: i32;
+  var@9 := copy *(px);
+  var@8 := move var@9 == 2: i32;
+  var@7 := ¬ move var@8;
+  assert(¬move var@7);
+  var@12 := copy x;
+  var@11 := move var@12 == 0: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy *(py);
+  var@14 := move var@15 == 2: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 2: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -4708,27 +5370,15 @@ About to evaluate statement: var@6 := &mut *(py)
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: *(ppx) := move var@6
-*(*(ppx)) := 2: i32
-var@9 := copy *(px)
-var@8 := move var@9 == 2: i32
-var@7 := ¬ move var@8
-assert(¬move var@7)
-var@12 := copy x
-var@11 := move var@12 == 0: i32
-var@10 := ¬ move var@11
-assert(¬move var@10)
-var@15 := copy *(py)
-var@14 := move var@15 == 2: i32
-var@13 := ¬ move var@14
-assert(¬move var@13)
-var@18 := copy y
-var@17 := move var@18 == 2: i32
-var@16 := ¬ move var@17
-assert(¬move var@16)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  *(ppx) := move var@6
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -4754,10 +5404,11 @@ return
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: *(ppx) := move var@6
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -4790,6 +5441,29 @@ move var@6
 [Debug] Value to move:
 &mut@3 (1: i32)
 [Debug] 
+**About to evaluate statement**: [
+  *(*(ppx)) := 2: i32;
+  var@9 := copy *(px);
+  var@8 := move var@9 == 2: i32;
+  var@7 := ¬ move var@8;
+  assert(¬move var@7);
+  var@12 := copy x;
+  var@11 := move var@12 == 0: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy *(py);
+  var@14 := move var@15 == 2: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 2: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -4815,26 +5489,15 @@ move var@6
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: *(*(ppx)) := 2: i32
-var@9 := copy *(px)
-var@8 := move var@9 == 2: i32
-var@7 := ¬ move var@8
-assert(¬move var@7)
-var@12 := copy x
-var@11 := move var@12 == 0: i32
-var@10 := ¬ move var@11
-assert(¬move var@10)
-var@15 := copy *(py)
-var@14 := move var@15 == 2: i32
-var@13 := ¬ move var@14
-assert(¬move var@13)
-var@18 := copy y
-var@17 := move var@18 == 2: i32
-var@16 := ¬ move var@17
-assert(¬move var@16)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  *(*(ppx)) := 2: i32
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -4860,10 +5523,11 @@ return
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: *(*(ppx)) := 2: i32
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -4894,6 +5558,28 @@ About to evaluate statement: *(*(ppx)) := 2: i32
 2: i32
 
 [Debug] 
+**About to evaluate statement**: [
+  var@9 := copy *(px);
+  var@8 := move var@9 == 2: i32;
+  var@7 := ¬ move var@8;
+  assert(¬move var@7);
+  var@12 := copy x;
+  var@11 := move var@12 == 0: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy *(py);
+  var@14 := move var@15 == 2: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 2: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -4919,25 +5605,15 @@ About to evaluate statement: *(*(ppx)) := 2: i32
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@9 := copy *(px)
-var@8 := move var@9 == 2: i32
-var@7 := ¬ move var@8
-assert(¬move var@7)
-var@12 := copy x
-var@11 := move var@12 == 0: i32
-var@10 := ¬ move var@11
-assert(¬move var@10)
-var@15 := copy *(py)
-var@14 := move var@15 == 2: i32
-var@13 := ¬ move var@14
-assert(¬move var@13)
-var@18 := copy y
-var@17 := move var@18 == 2: i32
-var@16 := ¬ move var@17
-assert(¬move var@16)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@9 := copy *(px)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -4963,10 +5639,11 @@ return
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@9 := copy *(px)
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -4999,6 +5676,27 @@ copy *(px)
 [Debug] Value to copy:
 2: i32
 [Debug] 
+**About to evaluate statement**: [
+  var@8 := move var@9 == 2: i32;
+  var@7 := ¬ move var@8;
+  assert(¬move var@7);
+  var@12 := copy x;
+  var@11 := move var@12 == 0: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy *(py);
+  var@14 := move var@15 == 2: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 2: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -5024,24 +5722,15 @@ copy *(px)
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@8 := move var@9 == 2: i32
-var@7 := ¬ move var@8
-assert(¬move var@7)
-var@12 := copy x
-var@11 := move var@12 == 0: i32
-var@10 := ¬ move var@11
-assert(¬move var@10)
-var@15 := copy *(py)
-var@14 := move var@15 == 2: i32
-var@13 := ¬ move var@14
-assert(¬move var@13)
-var@18 := copy y
-var@17 := move var@18 == 2: i32
-var@16 := ¬ move var@17
-assert(¬move var@16)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@8 := move var@9 == 2: i32
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -5067,10 +5756,11 @@ return
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@8 := move var@9 == 2: i32
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -5104,6 +5794,7 @@ move var@9
 2: i32
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -5134,6 +5825,26 @@ move var@9
 2: i32
 
 [Debug] 
+**About to evaluate statement**: [
+  var@7 := ¬ move var@8;
+  assert(¬move var@7);
+  var@12 := copy x;
+  var@11 := move var@12 == 0: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy *(py);
+  var@14 := move var@15 == 2: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 2: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -5159,23 +5870,15 @@ move var@9
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@7 := ¬ move var@8
-assert(¬move var@7)
-var@12 := copy x
-var@11 := move var@12 == 0: i32
-var@10 := ¬ move var@11
-assert(¬move var@10)
-var@15 := copy *(py)
-var@14 := move var@15 == 2: i32
-var@13 := ¬ move var@14
-assert(¬move var@13)
-var@18 := copy y
-var@17 := move var@18 == 2: i32
-var@16 := ¬ move var@17
-assert(¬move var@16)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@7 := ¬ move var@8
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -5201,10 +5904,11 @@ return
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@7 := ¬ move var@8
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -5237,6 +5941,25 @@ move var@8
 [Debug] Value to move:
 true
 [Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@7);
+  var@12 := copy x;
+  var@11 := move var@12 == 0: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy *(py);
+  var@14 := move var@15 == 2: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 2: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -5262,22 +5985,15 @@ true
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: assert(¬move var@7)
-var@12 := copy x
-var@11 := move var@12 == 0: i32
-var@10 := ¬ move var@11
-assert(¬move var@10)
-var@15 := copy *(py)
-var@14 := move var@15 == 2: i32
-var@13 := ¬ move var@14
-assert(¬move var@13)
-var@18 := copy y
-var@17 := move var@18 == 2: i32
-var@16 := ¬ move var@17
-assert(¬move var@16)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@7)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -5303,10 +6019,11 @@ return
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: assert(¬move var@7)
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -5339,6 +6056,24 @@ move var@7
 [Debug] Value to move:
 false
 [Debug] 
+**About to evaluate statement**: [
+  var@12 := copy x;
+  var@11 := move var@12 == 0: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy *(py);
+  var@14 := move var@15 == 2: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 2: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -5364,21 +6099,15 @@ false
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@12 := copy x
-var@11 := move var@12 == 0: i32
-var@10 := ¬ move var@11
-assert(¬move var@10)
-var@15 := copy *(py)
-var@14 := move var@15 == 2: i32
-var@13 := ¬ move var@14
-assert(¬move var@13)
-var@18 := copy y
-var@17 := move var@18 == 2: i32
-var@16 := ¬ move var@17
-assert(¬move var@16)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@12 := copy x
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -5404,10 +6133,11 @@ return
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@12 := copy x
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -5440,6 +6170,23 @@ copy x
 [Debug] Value to copy:
 0: i32
 [Debug] 
+**About to evaluate statement**: [
+  var@11 := move var@12 == 0: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy *(py);
+  var@14 := move var@15 == 2: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 2: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -5465,20 +6212,15 @@ copy x
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@11 := move var@12 == 0: i32
-var@10 := ¬ move var@11
-assert(¬move var@10)
-var@15 := copy *(py)
-var@14 := move var@15 == 2: i32
-var@13 := ¬ move var@14
-assert(¬move var@13)
-var@18 := copy y
-var@17 := move var@18 == 2: i32
-var@16 := ¬ move var@17
-assert(¬move var@16)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@11 := move var@12 == 0: i32
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -5504,10 +6246,11 @@ return
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@11 := move var@12 == 0: i32
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -5541,6 +6284,7 @@ move var@12
 0: i32
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -5571,6 +6315,22 @@ move var@12
 0: i32
 
 [Debug] 
+**About to evaluate statement**: [
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy *(py);
+  var@14 := move var@15 == 2: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 2: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -5596,19 +6356,15 @@ move var@12
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@10 := ¬ move var@11
-assert(¬move var@10)
-var@15 := copy *(py)
-var@14 := move var@15 == 2: i32
-var@13 := ¬ move var@14
-assert(¬move var@13)
-var@18 := copy y
-var@17 := move var@18 == 2: i32
-var@16 := ¬ move var@17
-assert(¬move var@16)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@10 := ¬ move var@11
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -5634,10 +6390,11 @@ return
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@10 := ¬ move var@11
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -5670,6 +6427,21 @@ move var@11
 [Debug] Value to move:
 true
 [Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@10);
+  var@15 := copy *(py);
+  var@14 := move var@15 == 2: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 2: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -5695,18 +6467,15 @@ true
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: assert(¬move var@10)
-var@15 := copy *(py)
-var@14 := move var@15 == 2: i32
-var@13 := ¬ move var@14
-assert(¬move var@13)
-var@18 := copy y
-var@17 := move var@18 == 2: i32
-var@16 := ¬ move var@17
-assert(¬move var@16)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@10)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -5732,10 +6501,11 @@ return
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: assert(¬move var@10)
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -5768,6 +6538,20 @@ move var@10
 [Debug] Value to move:
 false
 [Debug] 
+**About to evaluate statement**: [
+  var@15 := copy *(py);
+  var@14 := move var@15 == 2: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 2: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -5793,17 +6577,15 @@ false
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@15 := copy *(py)
-var@14 := move var@15 == 2: i32
-var@13 := ¬ move var@14
-assert(¬move var@13)
-var@18 := copy y
-var@17 := move var@18 == 2: i32
-var@16 := ¬ move var@17
-assert(¬move var@16)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@15 := copy *(py)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -5829,10 +6611,11 @@ return
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@15 := copy *(py)
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -5865,6 +6648,19 @@ copy *(py)
 [Debug] Value to copy:
 2: i32
 [Debug] 
+**About to evaluate statement**: [
+  var@14 := move var@15 == 2: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 2: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -5890,16 +6686,15 @@ copy *(py)
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@14 := move var@15 == 2: i32
-var@13 := ¬ move var@14
-assert(¬move var@13)
-var@18 := copy y
-var@17 := move var@18 == 2: i32
-var@16 := ¬ move var@17
-assert(¬move var@16)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@14 := move var@15 == 2: i32
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -5925,10 +6720,11 @@ return
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@14 := move var@15 == 2: i32
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -5962,6 +6758,7 @@ move var@15
 2: i32
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -5992,6 +6789,18 @@ move var@15
 2: i32
 
 [Debug] 
+**About to evaluate statement**: [
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 2: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -6017,15 +6826,15 @@ move var@15
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@13 := ¬ move var@14
-assert(¬move var@13)
-var@18 := copy y
-var@17 := move var@18 == 2: i32
-var@16 := ¬ move var@17
-assert(¬move var@16)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@13 := ¬ move var@14
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -6051,10 +6860,11 @@ return
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@13 := ¬ move var@14
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -6087,6 +6897,17 @@ move var@14
 [Debug] Value to move:
 true
 [Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 2: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -6112,14 +6933,15 @@ true
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: assert(¬move var@13)
-var@18 := copy y
-var@17 := move var@18 == 2: i32
-var@16 := ¬ move var@17
-assert(¬move var@16)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@13)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -6145,10 +6967,11 @@ return
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: assert(¬move var@13)
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -6181,6 +7004,16 @@ move var@13
 [Debug] Value to move:
 false
 [Debug] 
+**About to evaluate statement**: [
+  var@18 := copy y;
+  var@17 := move var@18 == 2: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -6206,13 +7039,15 @@ false
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@18 := copy y
-var@17 := move var@18 == 2: i32
-var@16 := ¬ move var@17
-assert(¬move var@16)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@18 := copy y
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -6238,10 +7073,11 @@ return
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@18 := copy y
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -6274,6 +7110,15 @@ copy y
 [Debug] Value to copy:
 2: i32
 [Debug] 
+**About to evaluate statement**: [
+  var@17 := move var@18 == 2: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -6299,12 +7144,15 @@ copy y
   var@18 -> 2: i32 ;
 }
 
-About to evaluate statement: var@17 := move var@18 == 2: i32
-var@16 := ¬ move var@17
-assert(¬move var@16)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@17 := move var@18 == 2: i32
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -6330,10 +7178,11 @@ return
   var@18 -> 2: i32 ;
 }
 
-About to evaluate statement: var@17 := move var@18 == 2: i32
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -6367,6 +7216,7 @@ move var@18
 2: i32
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -6397,6 +7247,14 @@ move var@18
 2: i32
 
 [Debug] 
+**About to evaluate statement**: [
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -6422,11 +7280,15 @@ move var@18
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@16 := ¬ move var@17
-assert(¬move var@16)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@16 := ¬ move var@17
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -6452,10 +7314,11 @@ return
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@16 := ¬ move var@17
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -6488,6 +7351,13 @@ move var@17
 [Debug] Value to move:
 true
 [Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -6513,10 +7383,15 @@ true
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: assert(¬move var@16)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@16)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -6542,10 +7417,11 @@ return
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: assert(¬move var@16)
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -6578,6 +7454,12 @@ move var@16
 [Debug] Value to move:
 false
 [Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -6603,10 +7485,22 @@ false
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: return
+
 
 [Debug] test_unit_function: test_list1
 [Debug] 
+**About to evaluate statement**: [
+  set_discriminant(var@3, 1);
+  var@2 := move alloc::boxed::Box<test1::List<i32>>::new(move var@3);
+  (l as test1::List::Cons).0 := 0: i32;
+  (l as test1::List::Cons).1 := move var@2;
+  set_discriminant(l, 0);
+  drop(l);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -6617,15 +7511,15 @@ About to evaluate statement: return
   var@3 -> ⊥ : test1::List<i32> ;
 }
 
-About to evaluate statement: set_discriminant(var@3, 1)
-var@2 := move alloc::boxed::Box<test1::List<i32>>::new(move var@3)
-(l as test1::List::Cons).0 := 0: i32
-(l as test1::List::Cons).1 := move var@2
-set_discriminant(l, 0)
-drop(l)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  set_discriminant(var@3, 1)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -6636,9 +7530,20 @@ return
   var@3 -> ⊥ : test1::List<i32> ;
 }
 
-About to evaluate statement: set_discriminant(var@3, 1)
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@2 := move alloc::boxed::Box<test1::List<i32>>::new(move var@3);
+  (l as test1::List::Cons).0 := 0: i32;
+  (l as test1::List::Cons).1 := move var@2;
+  set_discriminant(l, 0);
+  drop(l);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -6649,14 +7554,15 @@ About to evaluate statement: set_discriminant(var@3, 1)
   var@3 -> test1::List::Nil ;
 }
 
-About to evaluate statement: var@2 := move alloc::boxed::Box<test1::List<i32>>::new(move var@3)
-(l as test1::List::Cons).0 := 0: i32
-(l as test1::List::Cons).1 := move var@2
-set_discriminant(l, 0)
-drop(l)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@2 := move alloc::boxed::Box<test1::List<i32>>::new(move var@3)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -6667,7 +7573,7 @@ return
   var@3 -> test1::List::Nil ;
 }
 
-About to evaluate statement: var@2 := move alloc::boxed::Box<test1::List<i32>>::new(move var@3)
+
 
 [Debug] eval_non_local_function_call:
 - fid:CfimAst.BoxNew
@@ -6676,6 +7582,7 @@ About to evaluate statement: var@2 := move alloc::boxed::Box<test1::List<i32>>::
 - dest: var@2
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -6694,6 +7601,7 @@ move var@3
 test1::List::Nil
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -6717,6 +7625,7 @@ move var@1
 [Debug] Value to move:
 test1::List::Nil
 [Debug] ctx_pop_frame:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -6736,6 +7645,7 @@ test1::List::Nil
 [Debug] ctx_pop_frame: locals to drop: [1]
 [Debug] drop_value: place: var@1
 [Debug] ctx_pop_frame: after dropping local variables:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -6754,6 +7664,7 @@ test1::List::Nil
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -6777,6 +7688,16 @@ move @return
 [Debug] Value to move:
 @Box(test1::List::Nil)
 [Debug] 
+**About to evaluate statement**: [
+  (l as test1::List::Cons).0 := 0: i32;
+  (l as test1::List::Cons).1 := move var@2;
+  set_discriminant(l, 0);
+  drop(l);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -6787,13 +7708,15 @@ move @return
   var@3 -> ⊥ : test1::List<i32> ;
 }
 
-About to evaluate statement: (l as test1::List::Cons).0 := 0: i32
-(l as test1::List::Cons).1 := move var@2
-set_discriminant(l, 0)
-drop(l)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  (l as test1::List::Cons).0 := 0: i32
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -6804,10 +7727,11 @@ return
   var@3 -> ⊥ : test1::List<i32> ;
 }
 
-About to evaluate statement: (l as test1::List::Cons).0 := 0: i32
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -6826,6 +7750,15 @@ About to evaluate statement: (l as test1::List::Cons).0 := 0: i32
 pe: (Expressions.Field ((Expressions.ProjAdt (1, (Some 0))), 0))
 ty: (Types.Adt ((Types.AdtId 1), [], [(Types.Integer Types.I32)]))
 [Debug] 
+**About to evaluate statement**: [
+  (l as test1::List::Cons).1 := move var@2;
+  set_discriminant(l, 0);
+  drop(l);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -6836,12 +7769,15 @@ ty: (Types.Adt ((Types.AdtId 1), [], [(Types.Integer Types.I32)]))
   var@3 -> ⊥ : test1::List<i32> ;
 }
 
-About to evaluate statement: (l as test1::List::Cons).1 := move var@2
-set_discriminant(l, 0)
-drop(l)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  (l as test1::List::Cons).1 := move var@2
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -6852,10 +7788,11 @@ return
   var@3 -> ⊥ : test1::List<i32> ;
 }
 
-About to evaluate statement: (l as test1::List::Cons).1 := move var@2
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -6873,6 +7810,14 @@ move var@2
 [Debug] Value to move:
 @Box(test1::List::Nil)
 [Debug] 
+**About to evaluate statement**: [
+  set_discriminant(l, 0);
+  drop(l);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -6883,11 +7828,15 @@ move var@2
   var@3 -> ⊥ : test1::List<i32> ;
 }
 
-About to evaluate statement: set_discriminant(l, 0)
-drop(l)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  set_discriminant(l, 0)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -6898,9 +7847,16 @@ return
   var@3 -> ⊥ : test1::List<i32> ;
 }
 
-About to evaluate statement: set_discriminant(l, 0)
+
 
 [Debug] 
+**About to evaluate statement**: [
+  drop(l);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -6911,10 +7867,15 @@ About to evaluate statement: set_discriminant(l, 0)
   var@3 -> ⊥ : test1::List<i32> ;
 }
 
-About to evaluate statement: drop(l)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  drop(l)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -6925,10 +7886,16 @@ return
   var@3 -> ⊥ : test1::List<i32> ;
 }
 
-About to evaluate statement: drop(l)
+
 
 [Debug] drop_value: place: l
 [Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -6939,10 +7906,27 @@ About to evaluate statement: drop(l)
   var@3 -> ⊥ : test1::List<i32> ;
 }
 
-About to evaluate statement: return
+
 
 [Debug] test_unit_function: test_box1
 [Debug] 
+**About to evaluate statement**: [
+  b := move alloc::boxed::Box<i32>::new(0: i32);
+  var@3 := &two-phase b;
+  x := move core::ops::deref::DerefMut<i32>::deref_mut(move var@3);
+  *(x) := 1: i32;
+  var@5 := &b;
+  x := move core::ops::deref::Deref<Box<i32>>::deref(move var@5);
+  var@8 := copy *(x);
+  var@7 := move var@8 == 1: i32;
+  var@6 := ¬ move var@7;
+  assert(¬move var@6);
+  drop(b);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -6958,20 +7942,15 @@ About to evaluate statement: return
   var@8 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: b := move alloc::boxed::Box<i32>::new(0: i32)
-var@3 := &two-phase b
-x := move core::ops::deref::DerefMut<i32>::deref_mut(move var@3)
-*(x) := 1: i32
-var@5 := &b
-x := move core::ops::deref::Deref<Box<i32>>::deref(move var@5)
-var@8 := copy *(x)
-var@7 := move var@8 == 1: i32
-var@6 := ¬ move var@7
-assert(¬move var@6)
-drop(b)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  b := move alloc::boxed::Box<i32>::new(0: i32)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -6987,7 +7966,7 @@ return
   var@8 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: b := move alloc::boxed::Box<i32>::new(0: i32)
+
 
 [Debug] eval_non_local_function_call:
 - fid:CfimAst.BoxNew
@@ -6996,6 +7975,7 @@ About to evaluate statement: b := move alloc::boxed::Box<i32>::new(0: i32)
 - dest: b
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -7017,6 +7997,7 @@ About to evaluate statement: b := move alloc::boxed::Box<i32>::new(0: i32)
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -7045,6 +8026,7 @@ move var@1
 [Debug] Value to move:
 0: i32
 [Debug] ctx_pop_frame:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -7069,6 +8051,7 @@ move var@1
 [Debug] ctx_pop_frame: locals to drop: [1]
 [Debug] drop_value: place: var@1
 [Debug] ctx_pop_frame: after dropping local variables:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -7092,6 +8075,7 @@ move var@1
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -7120,6 +8104,22 @@ move @return
 [Debug] Value to move:
 @Box(0: i32)
 [Debug] 
+**About to evaluate statement**: [
+  var@3 := &two-phase b;
+  x := move core::ops::deref::DerefMut<i32>::deref_mut(move var@3);
+  *(x) := 1: i32;
+  var@5 := &b;
+  x := move core::ops::deref::Deref<Box<i32>>::deref(move var@5);
+  var@8 := copy *(x);
+  var@7 := move var@8 == 1: i32;
+  var@6 := ¬ move var@7;
+  assert(¬move var@6);
+  drop(b);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -7135,19 +8135,15 @@ move @return
   var@8 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@3 := &two-phase b
-x := move core::ops::deref::DerefMut<i32>::deref_mut(move var@3)
-*(x) := 1: i32
-var@5 := &b
-x := move core::ops::deref::Deref<Box<i32>>::deref(move var@5)
-var@8 := copy *(x)
-var@7 := move var@8 == 1: i32
-var@6 := ¬ move var@7
-assert(¬move var@6)
-drop(b)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@3 := &two-phase b
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -7163,9 +8159,24 @@ return
   var@8 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@3 := &two-phase b
+
 
 [Debug] 
+**About to evaluate statement**: [
+  x := move core::ops::deref::DerefMut<i32>::deref_mut(move var@3);
+  *(x) := 1: i32;
+  var@5 := &b;
+  x := move core::ops::deref::Deref<Box<i32>>::deref(move var@5);
+  var@8 := copy *(x);
+  var@7 := move var@8 == 1: i32;
+  var@6 := ¬ move var@7;
+  assert(¬move var@6);
+  drop(b);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -7181,18 +8192,15 @@ About to evaluate statement: var@3 := &two-phase b
   var@8 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: x := move core::ops::deref::DerefMut<i32>::deref_mut(move var@3)
-*(x) := 1: i32
-var@5 := &b
-x := move core::ops::deref::Deref<Box<i32>>::deref(move var@5)
-var@8 := copy *(x)
-var@7 := move var@8 == 1: i32
-var@6 := ¬ move var@7
-assert(¬move var@6)
-drop(b)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  x := move core::ops::deref::DerefMut<i32>::deref_mut(move var@3)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -7208,7 +8216,7 @@ return
   var@8 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: x := move core::ops::deref::DerefMut<i32>::deref_mut(move var@3)
+
 
 [Debug] eval_non_local_function_call:
 - fid:CfimAst.BoxDerefMut
@@ -7217,6 +8225,7 @@ About to evaluate statement: x := move core::ops::deref::DerefMut<i32>::deref_mu
 - dest: x
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -7252,6 +8261,7 @@ move var@3
 [Debug] Value to move:
 &mut@0 (@Box(0: i32))
 [Debug] ctx_pop_frame:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -7276,6 +8286,7 @@ move var@3
 [Debug] ctx_pop_frame: locals to drop: [1]
 [Debug] drop_value: place: var@1
 [Debug] ctx_pop_frame: after dropping local variables:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -7299,6 +8310,7 @@ move var@3
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -7327,6 +8339,20 @@ move @return
 [Debug] Value to move:
 &mut@1 (0: i32)
 [Debug] 
+**About to evaluate statement**: [
+  *(x) := 1: i32;
+  var@5 := &b;
+  x := move core::ops::deref::Deref<Box<i32>>::deref(move var@5);
+  var@8 := copy *(x);
+  var@7 := move var@8 == 1: i32;
+  var@6 := ¬ move var@7;
+  assert(¬move var@6);
+  drop(b);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -7342,17 +8368,15 @@ move @return
   var@8 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: *(x) := 1: i32
-var@5 := &b
-x := move core::ops::deref::Deref<Box<i32>>::deref(move var@5)
-var@8 := copy *(x)
-var@7 := move var@8 == 1: i32
-var@6 := ¬ move var@7
-assert(¬move var@6)
-drop(b)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  *(x) := 1: i32
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -7368,10 +8392,11 @@ return
   var@8 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: *(x) := 1: i32
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -7392,6 +8417,19 @@ About to evaluate statement: *(x) := 1: i32
 1: i32
 
 [Debug] 
+**About to evaluate statement**: [
+  var@5 := &b;
+  x := move core::ops::deref::Deref<Box<i32>>::deref(move var@5);
+  var@8 := copy *(x);
+  var@7 := move var@8 == 1: i32;
+  var@6 := ¬ move var@7;
+  assert(¬move var@6);
+  drop(b);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -7407,16 +8445,15 @@ About to evaluate statement: *(x) := 1: i32
   var@8 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@5 := &b
-x := move core::ops::deref::Deref<Box<i32>>::deref(move var@5)
-var@8 := copy *(x)
-var@7 := move var@8 == 1: i32
-var@6 := ¬ move var@7
-assert(¬move var@6)
-drop(b)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@5 := &b
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -7432,9 +8469,21 @@ return
   var@8 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@5 := &b
+
 
 [Debug] 
+**About to evaluate statement**: [
+  x := move core::ops::deref::Deref<Box<i32>>::deref(move var@5);
+  var@8 := copy *(x);
+  var@7 := move var@8 == 1: i32;
+  var@6 := ¬ move var@7;
+  assert(¬move var@6);
+  drop(b);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -7450,15 +8499,15 @@ About to evaluate statement: var@5 := &b
   var@8 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: x := move core::ops::deref::Deref<Box<i32>>::deref(move var@5)
-var@8 := copy *(x)
-var@7 := move var@8 == 1: i32
-var@6 := ¬ move var@7
-assert(¬move var@6)
-drop(b)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  x := move core::ops::deref::Deref<Box<i32>>::deref(move var@5)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -7474,7 +8523,7 @@ return
   var@8 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: x := move core::ops::deref::Deref<Box<i32>>::deref(move var@5)
+
 
 [Debug] eval_non_local_function_call:
 - fid:CfimAst.BoxDeref
@@ -7483,6 +8532,7 @@ About to evaluate statement: x := move core::ops::deref::Deref<Box<i32>>::deref(
 - dest: x
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -7505,6 +8555,7 @@ move var@5
 [Debug] Value to move:
 ⌊shared@2⌋
 [Debug] ctx_pop_frame:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -7529,6 +8580,7 @@ move var@5
 [Debug] ctx_pop_frame: locals to drop: [1]
 [Debug] drop_value: place: var@1
 [Debug] ctx_pop_frame: after dropping local variables:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -7552,6 +8604,7 @@ move var@5
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -7580,6 +8633,17 @@ move @return
 [Debug] Value to move:
 ⌊shared@3⌋
 [Debug] 
+**About to evaluate statement**: [
+  var@8 := copy *(x);
+  var@7 := move var@8 == 1: i32;
+  var@6 := ¬ move var@7;
+  assert(¬move var@6);
+  drop(b);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -7595,14 +8659,15 @@ move @return
   var@8 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@8 := copy *(x)
-var@7 := move var@8 == 1: i32
-var@6 := ¬ move var@7
-assert(¬move var@6)
-drop(b)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@8 := copy *(x)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -7618,10 +8683,11 @@ return
   var@8 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@8 := copy *(x)
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -7644,6 +8710,16 @@ copy *(x)
 [Debug] Value to copy:
 1: i32
 [Debug] 
+**About to evaluate statement**: [
+  var@7 := move var@8 == 1: i32;
+  var@6 := ¬ move var@7;
+  assert(¬move var@6);
+  drop(b);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -7659,13 +8735,15 @@ copy *(x)
   var@8 -> 1: i32 ;
 }
 
-About to evaluate statement: var@7 := move var@8 == 1: i32
-var@6 := ¬ move var@7
-assert(¬move var@6)
-drop(b)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@7 := move var@8 == 1: i32
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -7681,10 +8759,11 @@ return
   var@8 -> 1: i32 ;
 }
 
-About to evaluate statement: var@7 := move var@8 == 1: i32
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -7708,6 +8787,7 @@ move var@8
 1: i32
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -7728,6 +8808,15 @@ move var@8
 1: i32
 
 [Debug] 
+**About to evaluate statement**: [
+  var@6 := ¬ move var@7;
+  assert(¬move var@6);
+  drop(b);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -7743,12 +8832,15 @@ move var@8
   var@8 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@6 := ¬ move var@7
-assert(¬move var@6)
-drop(b)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@6 := ¬ move var@7
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -7764,10 +8856,11 @@ return
   var@8 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@6 := ¬ move var@7
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -7790,6 +8883,14 @@ move var@7
 [Debug] Value to move:
 true
 [Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@6);
+  drop(b);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -7805,11 +8906,15 @@ true
   var@8 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: assert(¬move var@6)
-drop(b)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@6)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -7825,10 +8930,11 @@ return
   var@8 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: assert(¬move var@6)
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -7851,6 +8957,13 @@ move var@6
 [Debug] Value to move:
 false
 [Debug] 
+**About to evaluate statement**: [
+  drop(b);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -7866,10 +8979,15 @@ false
   var@8 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: drop(b)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  drop(b)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -7885,10 +9003,16 @@ return
   var@8 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: drop(b)
+
 
 [Debug] drop_value: place: b
 [Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -7904,10 +9028,25 @@ About to evaluate statement: drop(b)
   var@8 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: return
+
 
 [Debug] test_unit_function: test_copy_int
 [Debug] 
+**About to evaluate statement**: [
+  x := 0: i32;
+  px := &x;
+  var@4 := copy x;
+  y := move copy_int(move var@4);
+  var@7 := copy *(px);
+  var@8 := copy y;
+  var@6 := move var@7 == move var@8;
+  var@5 := ¬ move var@6;
+  assert(¬move var@5);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -7923,18 +9062,15 @@ About to evaluate statement: return
   var@8 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: x := 0: i32
-px := &x
-var@4 := copy x
-y := move copy_int(move var@4)
-var@7 := copy *(px)
-var@8 := copy y
-var@6 := move var@7 == move var@8
-var@5 := ¬ move var@6
-assert(¬move var@5)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  x := 0: i32
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -7950,10 +9086,11 @@ return
   var@8 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: x := 0: i32
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -7974,6 +9111,20 @@ About to evaluate statement: x := 0: i32
 0: i32
 
 [Debug] 
+**About to evaluate statement**: [
+  px := &x;
+  var@4 := copy x;
+  y := move copy_int(move var@4);
+  var@7 := copy *(px);
+  var@8 := copy y;
+  var@6 := move var@7 == move var@8;
+  var@5 := ¬ move var@6;
+  assert(¬move var@5);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -7989,17 +9140,15 @@ About to evaluate statement: x := 0: i32
   var@8 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: px := &x
-var@4 := copy x
-y := move copy_int(move var@4)
-var@7 := copy *(px)
-var@8 := copy y
-var@6 := move var@7 == move var@8
-var@5 := ¬ move var@6
-assert(¬move var@5)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  px := &x
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -8015,9 +9164,22 @@ return
   var@8 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: px := &x
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@4 := copy x;
+  y := move copy_int(move var@4);
+  var@7 := copy *(px);
+  var@8 := copy y;
+  var@6 := move var@7 == move var@8;
+  var@5 := ¬ move var@6;
+  assert(¬move var@5);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -8033,16 +9195,15 @@ About to evaluate statement: px := &x
   var@8 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@4 := copy x
-y := move copy_int(move var@4)
-var@7 := copy *(px)
-var@8 := copy y
-var@6 := move var@7 == move var@8
-var@5 := ¬ move var@6
-assert(¬move var@5)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@4 := copy x
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -8058,10 +9219,11 @@ return
   var@8 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@4 := copy x
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -8084,6 +9246,18 @@ copy x
 [Debug] Value to copy:
 @shared_loan({0}, 0: i32)
 [Debug] 
+**About to evaluate statement**: [
+  y := move copy_int(move var@4);
+  var@7 := copy *(px);
+  var@8 := copy y;
+  var@6 := move var@7 == move var@8;
+  var@5 := ¬ move var@6;
+  assert(¬move var@5);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -8099,15 +9273,15 @@ copy x
   var@8 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: y := move copy_int(move var@4)
-var@7 := copy *(px)
-var@8 := copy y
-var@6 := move var@7 == move var@8
-var@5 := ¬ move var@6
-assert(¬move var@5)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  y := move copy_int(move var@4)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -8123,10 +9297,11 @@ return
   var@8 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: y := move copy_int(move var@4)
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -8149,6 +9324,13 @@ move var@4
 [Debug] Value to move:
 0: i32
 [Debug] 
+**About to evaluate statement**: [
+  var@0 := copy x;
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -8170,10 +9352,15 @@ move var@4
   x -> 0: i32 ;
 }
 
-About to evaluate statement: var@0 := copy x
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@0 := copy x
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -8195,10 +9382,11 @@ return
   x -> 0: i32 ;
 }
 
-About to evaluate statement: var@0 := copy x
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -8227,6 +9415,12 @@ copy x
 [Debug] Value to copy:
 0: i32
 [Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -8248,9 +9442,10 @@ copy x
   x -> 0: i32 ;
 }
 
-About to evaluate statement: return
+
 
 [Debug] ctx_pop_frame:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -8275,6 +9470,7 @@ About to evaluate statement: return
 [Debug] ctx_pop_frame: locals to drop: [1]
 [Debug] drop_value: place: x
 [Debug] ctx_pop_frame: after dropping local variables:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -8298,6 +9494,7 @@ About to evaluate statement: return
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -8326,6 +9523,17 @@ move var@0
 [Debug] Value to move:
 0: i32
 [Debug] 
+**About to evaluate statement**: [
+  var@7 := copy *(px);
+  var@8 := copy y;
+  var@6 := move var@7 == move var@8;
+  var@5 := ¬ move var@6;
+  assert(¬move var@5);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -8341,14 +9549,15 @@ move var@0
   var@8 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@7 := copy *(px)
-var@8 := copy y
-var@6 := move var@7 == move var@8
-var@5 := ¬ move var@6
-assert(¬move var@5)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@7 := copy *(px)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -8364,10 +9573,11 @@ return
   var@8 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@7 := copy *(px)
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -8390,6 +9600,16 @@ copy *(px)
 [Debug] Value to copy:
 0: i32
 [Debug] 
+**About to evaluate statement**: [
+  var@8 := copy y;
+  var@6 := move var@7 == move var@8;
+  var@5 := ¬ move var@6;
+  assert(¬move var@5);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -8405,13 +9625,15 @@ copy *(px)
   var@8 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@8 := copy y
-var@6 := move var@7 == move var@8
-var@5 := ¬ move var@6
-assert(¬move var@5)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@8 := copy y
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -8427,10 +9649,11 @@ return
   var@8 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@8 := copy y
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -8453,6 +9676,15 @@ copy y
 [Debug] Value to copy:
 0: i32
 [Debug] 
+**About to evaluate statement**: [
+  var@6 := move var@7 == move var@8;
+  var@5 := ¬ move var@6;
+  assert(¬move var@5);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -8468,12 +9700,15 @@ copy y
   var@8 -> 0: i32 ;
 }
 
-About to evaluate statement: var@6 := move var@7 == move var@8
-var@5 := ¬ move var@6
-assert(¬move var@5)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@6 := move var@7 == move var@8
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -8489,10 +9724,11 @@ return
   var@8 -> 0: i32 ;
 }
 
-About to evaluate statement: var@6 := move var@7 == move var@8
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -8516,6 +9752,7 @@ move var@7
 0: i32
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -8538,6 +9775,14 @@ move var@8
 [Debug] Value to move:
 0: i32
 [Debug] 
+**About to evaluate statement**: [
+  var@5 := ¬ move var@6;
+  assert(¬move var@5);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -8553,11 +9798,15 @@ move var@8
   var@8 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@5 := ¬ move var@6
-assert(¬move var@5)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@5 := ¬ move var@6
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -8573,10 +9822,11 @@ return
   var@8 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@5 := ¬ move var@6
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -8599,6 +9849,13 @@ move var@6
 [Debug] Value to move:
 true
 [Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@5);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -8614,10 +9871,15 @@ true
   var@8 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: assert(¬move var@5)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@5)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -8633,10 +9895,11 @@ return
   var@8 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: assert(¬move var@5)
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -8659,6 +9922,12 @@ move var@5
 [Debug] Value to move:
 false
 [Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -8674,10 +9943,27 @@ false
   var@8 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: return
+
 
 [Debug] test_unit_function: test_is_cons
 [Debug] 
+**About to evaluate statement**: [
+  set_discriminant(var@3, 1);
+  var@2 := move alloc::boxed::Box<test1::List<i32>>::new(move var@3);
+  (l as test1::List::Cons).0 := 0: i32;
+  (l as test1::List::Cons).1 := move var@2;
+  set_discriminant(l, 0);
+  var@7 := &l;
+  var@6 := copy var@7;
+  var@5 := move is_cons<i32>(move var@6);
+  var@4 := ¬ move var@5;
+  assert(¬move var@4);
+  drop(l);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -8692,20 +9978,15 @@ About to evaluate statement: return
   var@7 -> ⊥ : &'_ (test1::List<i32>) ;
 }
 
-About to evaluate statement: set_discriminant(var@3, 1)
-var@2 := move alloc::boxed::Box<test1::List<i32>>::new(move var@3)
-(l as test1::List::Cons).0 := 0: i32
-(l as test1::List::Cons).1 := move var@2
-set_discriminant(l, 0)
-var@7 := &l
-var@6 := copy var@7
-var@5 := move is_cons<i32>(move var@6)
-var@4 := ¬ move var@5
-assert(¬move var@4)
-drop(l)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  set_discriminant(var@3, 1)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -8720,9 +10001,25 @@ return
   var@7 -> ⊥ : &'_ (test1::List<i32>) ;
 }
 
-About to evaluate statement: set_discriminant(var@3, 1)
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@2 := move alloc::boxed::Box<test1::List<i32>>::new(move var@3);
+  (l as test1::List::Cons).0 := 0: i32;
+  (l as test1::List::Cons).1 := move var@2;
+  set_discriminant(l, 0);
+  var@7 := &l;
+  var@6 := copy var@7;
+  var@5 := move is_cons<i32>(move var@6);
+  var@4 := ¬ move var@5;
+  assert(¬move var@4);
+  drop(l);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -8737,19 +10034,15 @@ About to evaluate statement: set_discriminant(var@3, 1)
   var@7 -> ⊥ : &'_ (test1::List<i32>) ;
 }
 
-About to evaluate statement: var@2 := move alloc::boxed::Box<test1::List<i32>>::new(move var@3)
-(l as test1::List::Cons).0 := 0: i32
-(l as test1::List::Cons).1 := move var@2
-set_discriminant(l, 0)
-var@7 := &l
-var@6 := copy var@7
-var@5 := move is_cons<i32>(move var@6)
-var@4 := ¬ move var@5
-assert(¬move var@4)
-drop(l)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@2 := move alloc::boxed::Box<test1::List<i32>>::new(move var@3)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -8764,7 +10057,7 @@ return
   var@7 -> ⊥ : &'_ (test1::List<i32>) ;
 }
 
-About to evaluate statement: var@2 := move alloc::boxed::Box<test1::List<i32>>::new(move var@3)
+
 
 [Debug] eval_non_local_function_call:
 - fid:CfimAst.BoxNew
@@ -8773,6 +10066,7 @@ About to evaluate statement: var@2 := move alloc::boxed::Box<test1::List<i32>>::
 - dest: var@2
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -8795,6 +10089,7 @@ move var@3
 test1::List::Nil
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -8822,6 +10117,7 @@ move var@1
 [Debug] Value to move:
 test1::List::Nil
 [Debug] ctx_pop_frame:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -8845,6 +10141,7 @@ test1::List::Nil
 [Debug] ctx_pop_frame: locals to drop: [1]
 [Debug] drop_value: place: var@1
 [Debug] ctx_pop_frame: after dropping local variables:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -8867,6 +10164,7 @@ test1::List::Nil
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -8894,6 +10192,21 @@ move @return
 [Debug] Value to move:
 @Box(test1::List::Nil)
 [Debug] 
+**About to evaluate statement**: [
+  (l as test1::List::Cons).0 := 0: i32;
+  (l as test1::List::Cons).1 := move var@2;
+  set_discriminant(l, 0);
+  var@7 := &l;
+  var@6 := copy var@7;
+  var@5 := move is_cons<i32>(move var@6);
+  var@4 := ¬ move var@5;
+  assert(¬move var@4);
+  drop(l);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -8908,18 +10221,15 @@ move @return
   var@7 -> ⊥ : &'_ (test1::List<i32>) ;
 }
 
-About to evaluate statement: (l as test1::List::Cons).0 := 0: i32
-(l as test1::List::Cons).1 := move var@2
-set_discriminant(l, 0)
-var@7 := &l
-var@6 := copy var@7
-var@5 := move is_cons<i32>(move var@6)
-var@4 := ¬ move var@5
-assert(¬move var@4)
-drop(l)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  (l as test1::List::Cons).0 := 0: i32
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -8934,10 +10244,11 @@ return
   var@7 -> ⊥ : &'_ (test1::List<i32>) ;
 }
 
-About to evaluate statement: (l as test1::List::Cons).0 := 0: i32
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -8960,6 +10271,20 @@ About to evaluate statement: (l as test1::List::Cons).0 := 0: i32
 pe: (Expressions.Field ((Expressions.ProjAdt (1, (Some 0))), 0))
 ty: (Types.Adt ((Types.AdtId 1), [], [(Types.Integer Types.I32)]))
 [Debug] 
+**About to evaluate statement**: [
+  (l as test1::List::Cons).1 := move var@2;
+  set_discriminant(l, 0);
+  var@7 := &l;
+  var@6 := copy var@7;
+  var@5 := move is_cons<i32>(move var@6);
+  var@4 := ¬ move var@5;
+  assert(¬move var@4);
+  drop(l);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -8974,17 +10299,15 @@ ty: (Types.Adt ((Types.AdtId 1), [], [(Types.Integer Types.I32)]))
   var@7 -> ⊥ : &'_ (test1::List<i32>) ;
 }
 
-About to evaluate statement: (l as test1::List::Cons).1 := move var@2
-set_discriminant(l, 0)
-var@7 := &l
-var@6 := copy var@7
-var@5 := move is_cons<i32>(move var@6)
-var@4 := ¬ move var@5
-assert(¬move var@4)
-drop(l)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  (l as test1::List::Cons).1 := move var@2
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -8999,10 +10322,11 @@ return
   var@7 -> ⊥ : &'_ (test1::List<i32>) ;
 }
 
-About to evaluate statement: (l as test1::List::Cons).1 := move var@2
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -9024,6 +10348,19 @@ move var@2
 [Debug] Value to move:
 @Box(test1::List::Nil)
 [Debug] 
+**About to evaluate statement**: [
+  set_discriminant(l, 0);
+  var@7 := &l;
+  var@6 := copy var@7;
+  var@5 := move is_cons<i32>(move var@6);
+  var@4 := ¬ move var@5;
+  assert(¬move var@4);
+  drop(l);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -9038,16 +10375,15 @@ move var@2
   var@7 -> ⊥ : &'_ (test1::List<i32>) ;
 }
 
-About to evaluate statement: set_discriminant(l, 0)
-var@7 := &l
-var@6 := copy var@7
-var@5 := move is_cons<i32>(move var@6)
-var@4 := ¬ move var@5
-assert(¬move var@4)
-drop(l)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  set_discriminant(l, 0)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -9062,9 +10398,21 @@ return
   var@7 -> ⊥ : &'_ (test1::List<i32>) ;
 }
 
-About to evaluate statement: set_discriminant(l, 0)
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@7 := &l;
+  var@6 := copy var@7;
+  var@5 := move is_cons<i32>(move var@6);
+  var@4 := ¬ move var@5;
+  assert(¬move var@4);
+  drop(l);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -9079,15 +10427,15 @@ About to evaluate statement: set_discriminant(l, 0)
   var@7 -> ⊥ : &'_ (test1::List<i32>) ;
 }
 
-About to evaluate statement: var@7 := &l
-var@6 := copy var@7
-var@5 := move is_cons<i32>(move var@6)
-var@4 := ¬ move var@5
-assert(¬move var@4)
-drop(l)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@7 := &l
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -9102,9 +10450,20 @@ return
   var@7 -> ⊥ : &'_ (test1::List<i32>) ;
 }
 
-About to evaluate statement: var@7 := &l
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@6 := copy var@7;
+  var@5 := move is_cons<i32>(move var@6);
+  var@4 := ¬ move var@5;
+  assert(¬move var@4);
+  drop(l);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -9119,14 +10478,15 @@ About to evaluate statement: var@7 := &l
   var@7 -> ⌊shared@0⌋ ;
 }
 
-About to evaluate statement: var@6 := copy var@7
-var@5 := move is_cons<i32>(move var@6)
-var@4 := ¬ move var@5
-assert(¬move var@4)
-drop(l)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@6 := copy var@7
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -9141,10 +10501,11 @@ return
   var@7 -> ⌊shared@0⌋ ;
 }
 
-About to evaluate statement: var@6 := copy var@7
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -9166,6 +10527,16 @@ copy var@7
 [Debug] Value to copy:
 ⌊shared@0⌋
 [Debug] 
+**About to evaluate statement**: [
+  var@5 := move is_cons<i32>(move var@6);
+  var@4 := ¬ move var@5;
+  assert(¬move var@4);
+  drop(l);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -9180,13 +10551,15 @@ copy var@7
   var@7 -> ⌊shared@0⌋ ;
 }
 
-About to evaluate statement: var@5 := move is_cons<i32>(move var@6)
-var@4 := ¬ move var@5
-assert(¬move var@4)
-drop(l)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@5 := move is_cons<i32>(move var@6)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -9201,10 +10574,11 @@ return
   var@7 -> ⌊shared@0⌋ ;
 }
 
-About to evaluate statement: var@5 := move is_cons<i32>(move var@6)
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -9226,6 +10600,24 @@ move var@6
 [Debug] Value to move:
 ⌊shared@1⌋
 [Debug] 
+**About to evaluate statement**: [
+  var@2 := discriminant(*(l));
+  switch (move var@2) {
+    0: isize => {
+      var@0 := true
+    }
+    1: isize => {
+      var@0 := false
+    }
+    _ => {
+      panic
+    }
+  };
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -9247,21 +10639,15 @@ move var@6
   var@2 -> ⊥ : isize ;
 }
 
-About to evaluate statement: var@2 := discriminant(*(l))
-switch (move var@2) {
-  0: isize => {
-    var@0 := true
-  }
-  1: isize => {
-    var@0 := false
-  }
-  _ => {
-    panic
-  }
-}
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@2 := discriminant(*(l))
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -9283,9 +10669,26 @@ return
   var@2 -> ⊥ : isize ;
 }
 
-About to evaluate statement: var@2 := discriminant(*(l))
+
 
 [Debug] 
+**About to evaluate statement**: [
+  switch (move var@2) {
+    0: isize => {
+      var@0 := true
+    }
+    1: isize => {
+      var@0 := false
+    }
+    _ => {
+      panic
+    }
+  };
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -9307,20 +10710,25 @@ About to evaluate statement: var@2 := discriminant(*(l))
   var@2 -> 0: isize ;
 }
 
-About to evaluate statement: switch (move var@2) {
-  0: isize => {
-    var@0 := true
-  }
-  1: isize => {
-    var@0 := false
-  }
-  _ => {
-    panic
-  }
-}
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  switch (move var@2) {
+    0: isize => {
+      var@0 := true
+    }
+    1: isize => {
+      var@0 := false
+    }
+    _ => {
+      panic
+    }
+  }
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -9342,20 +10750,11 @@ return
   var@2 -> 0: isize ;
 }
 
-About to evaluate statement: switch (move var@2) {
-  0: isize => {
-    var@0 := true
-  }
-  1: isize => {
-    var@0 := false
-  }
-  _ => {
-    panic
-  }
-}
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -9384,6 +10783,12 @@ move var@2
 [Debug] Value to move:
 0: isize
 [Debug] 
+**About to evaluate statement**: [
+  var@0 := true
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -9405,10 +10810,11 @@ move var@2
   var@2 -> ⊥ : isize ;
 }
 
-About to evaluate statement: var@0 := true
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -9435,6 +10841,12 @@ About to evaluate statement: var@0 := true
 true
 
 [Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -9456,9 +10868,10 @@ true
   var@2 -> ⊥ : isize ;
 }
 
-About to evaluate statement: return
+
 
 [Debug] ctx_pop_frame:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -9484,6 +10897,7 @@ About to evaluate statement: return
 [Debug] drop_value: place: var@2
 [Debug] drop_value: place: l
 [Debug] ctx_pop_frame: after dropping local variables:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -9507,6 +10921,7 @@ About to evaluate statement: return
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -9535,6 +10950,15 @@ move var@0
 [Debug] Value to move:
 true
 [Debug] 
+**About to evaluate statement**: [
+  var@4 := ¬ move var@5;
+  assert(¬move var@4);
+  drop(l);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -9549,12 +10973,15 @@ true
   var@7 -> ⌊shared@0⌋ ;
 }
 
-About to evaluate statement: var@4 := ¬ move var@5
-assert(¬move var@4)
-drop(l)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@4 := ¬ move var@5
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -9569,10 +10996,11 @@ return
   var@7 -> ⌊shared@0⌋ ;
 }
 
-About to evaluate statement: var@4 := ¬ move var@5
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -9594,6 +11022,14 @@ move var@5
 [Debug] Value to move:
 true
 [Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@4);
+  drop(l);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -9608,11 +11044,15 @@ true
   var@7 -> ⌊shared@0⌋ ;
 }
 
-About to evaluate statement: assert(¬move var@4)
-drop(l)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@4)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -9627,10 +11067,11 @@ return
   var@7 -> ⌊shared@0⌋ ;
 }
 
-About to evaluate statement: assert(¬move var@4)
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -9652,6 +11093,13 @@ move var@4
 [Debug] Value to move:
 false
 [Debug] 
+**About to evaluate statement**: [
+  drop(l);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -9666,10 +11114,15 @@ false
   var@7 -> ⌊shared@0⌋ ;
 }
 
-About to evaluate statement: drop(l)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  drop(l)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -9684,10 +11137,16 @@ return
   var@7 -> ⌊shared@0⌋ ;
 }
 
-About to evaluate statement: drop(l)
+
 
 [Debug] drop_value: place: l
 [Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -9702,10 +11161,30 @@ About to evaluate statement: drop(l)
   var@7 -> ⊥ : &'_ (test1::List<i32>) ;
 }
 
-About to evaluate statement: return
+
 
 [Debug] test_unit_function: test_split_list
 [Debug] 
+**About to evaluate statement**: [
+  set_discriminant(var@3, 1);
+  var@2 := move alloc::boxed::Box<test1::List<i32>>::new(move var@3);
+  (l as test1::List::Cons).0 := 0: i32;
+  (l as test1::List::Cons).1 := move var@2;
+  set_discriminant(l, 0);
+  var@7 := move l;
+  var@6 := move split_list<i32>(move var@7);
+  hd := copy (var@6).0;
+  tl := move (var@6).1;
+  var@10 := copy hd;
+  var@9 := move var@10 == 0: i32;
+  var@8 := ¬ move var@9;
+  assert(¬move var@8);
+  drop(tl);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -9723,23 +11202,15 @@ About to evaluate statement: return
   var@10 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: set_discriminant(var@3, 1)
-var@2 := move alloc::boxed::Box<test1::List<i32>>::new(move var@3)
-(l as test1::List::Cons).0 := 0: i32
-(l as test1::List::Cons).1 := move var@2
-set_discriminant(l, 0)
-var@7 := move l
-var@6 := move split_list<i32>(move var@7)
-hd := copy (var@6).0
-tl := move (var@6).1
-var@10 := copy hd
-var@9 := move var@10 == 0: i32
-var@8 := ¬ move var@9
-assert(¬move var@8)
-drop(tl)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  set_discriminant(var@3, 1)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -9757,9 +11228,28 @@ return
   var@10 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: set_discriminant(var@3, 1)
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@2 := move alloc::boxed::Box<test1::List<i32>>::new(move var@3);
+  (l as test1::List::Cons).0 := 0: i32;
+  (l as test1::List::Cons).1 := move var@2;
+  set_discriminant(l, 0);
+  var@7 := move l;
+  var@6 := move split_list<i32>(move var@7);
+  hd := copy (var@6).0;
+  tl := move (var@6).1;
+  var@10 := copy hd;
+  var@9 := move var@10 == 0: i32;
+  var@8 := ¬ move var@9;
+  assert(¬move var@8);
+  drop(tl);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -9777,22 +11267,15 @@ About to evaluate statement: set_discriminant(var@3, 1)
   var@10 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@2 := move alloc::boxed::Box<test1::List<i32>>::new(move var@3)
-(l as test1::List::Cons).0 := 0: i32
-(l as test1::List::Cons).1 := move var@2
-set_discriminant(l, 0)
-var@7 := move l
-var@6 := move split_list<i32>(move var@7)
-hd := copy (var@6).0
-tl := move (var@6).1
-var@10 := copy hd
-var@9 := move var@10 == 0: i32
-var@8 := ¬ move var@9
-assert(¬move var@8)
-drop(tl)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@2 := move alloc::boxed::Box<test1::List<i32>>::new(move var@3)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -9810,7 +11293,7 @@ return
   var@10 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@2 := move alloc::boxed::Box<test1::List<i32>>::new(move var@3)
+
 
 [Debug] eval_non_local_function_call:
 - fid:CfimAst.BoxNew
@@ -9819,6 +11302,7 @@ About to evaluate statement: var@2 := move alloc::boxed::Box<test1::List<i32>>::
 - dest: var@2
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -9844,6 +11328,7 @@ move var@3
 test1::List::Nil
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -9874,6 +11359,7 @@ move var@1
 [Debug] Value to move:
 test1::List::Nil
 [Debug] ctx_pop_frame:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -9900,6 +11386,7 @@ test1::List::Nil
 [Debug] ctx_pop_frame: locals to drop: [1]
 [Debug] drop_value: place: var@1
 [Debug] ctx_pop_frame: after dropping local variables:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -9925,6 +11412,7 @@ test1::List::Nil
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -9955,6 +11443,24 @@ move @return
 [Debug] Value to move:
 @Box(test1::List::Nil)
 [Debug] 
+**About to evaluate statement**: [
+  (l as test1::List::Cons).0 := 0: i32;
+  (l as test1::List::Cons).1 := move var@2;
+  set_discriminant(l, 0);
+  var@7 := move l;
+  var@6 := move split_list<i32>(move var@7);
+  hd := copy (var@6).0;
+  tl := move (var@6).1;
+  var@10 := copy hd;
+  var@9 := move var@10 == 0: i32;
+  var@8 := ¬ move var@9;
+  assert(¬move var@8);
+  drop(tl);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -9972,21 +11478,15 @@ move @return
   var@10 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: (l as test1::List::Cons).0 := 0: i32
-(l as test1::List::Cons).1 := move var@2
-set_discriminant(l, 0)
-var@7 := move l
-var@6 := move split_list<i32>(move var@7)
-hd := copy (var@6).0
-tl := move (var@6).1
-var@10 := copy hd
-var@9 := move var@10 == 0: i32
-var@8 := ¬ move var@9
-assert(¬move var@8)
-drop(tl)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  (l as test1::List::Cons).0 := 0: i32
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -10004,10 +11504,11 @@ return
   var@10 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: (l as test1::List::Cons).0 := 0: i32
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -10033,6 +11534,23 @@ About to evaluate statement: (l as test1::List::Cons).0 := 0: i32
 pe: (Expressions.Field ((Expressions.ProjAdt (1, (Some 0))), 0))
 ty: (Types.Adt ((Types.AdtId 1), [], [(Types.Integer Types.I32)]))
 [Debug] 
+**About to evaluate statement**: [
+  (l as test1::List::Cons).1 := move var@2;
+  set_discriminant(l, 0);
+  var@7 := move l;
+  var@6 := move split_list<i32>(move var@7);
+  hd := copy (var@6).0;
+  tl := move (var@6).1;
+  var@10 := copy hd;
+  var@9 := move var@10 == 0: i32;
+  var@8 := ¬ move var@9;
+  assert(¬move var@8);
+  drop(tl);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -10050,20 +11568,15 @@ ty: (Types.Adt ((Types.AdtId 1), [], [(Types.Integer Types.I32)]))
   var@10 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: (l as test1::List::Cons).1 := move var@2
-set_discriminant(l, 0)
-var@7 := move l
-var@6 := move split_list<i32>(move var@7)
-hd := copy (var@6).0
-tl := move (var@6).1
-var@10 := copy hd
-var@9 := move var@10 == 0: i32
-var@8 := ¬ move var@9
-assert(¬move var@8)
-drop(tl)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  (l as test1::List::Cons).1 := move var@2
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -10081,10 +11594,11 @@ return
   var@10 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: (l as test1::List::Cons).1 := move var@2
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -10109,6 +11623,22 @@ move var@2
 [Debug] Value to move:
 @Box(test1::List::Nil)
 [Debug] 
+**About to evaluate statement**: [
+  set_discriminant(l, 0);
+  var@7 := move l;
+  var@6 := move split_list<i32>(move var@7);
+  hd := copy (var@6).0;
+  tl := move (var@6).1;
+  var@10 := copy hd;
+  var@9 := move var@10 == 0: i32;
+  var@8 := ¬ move var@9;
+  assert(¬move var@8);
+  drop(tl);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -10126,19 +11656,15 @@ move var@2
   var@10 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: set_discriminant(l, 0)
-var@7 := move l
-var@6 := move split_list<i32>(move var@7)
-hd := copy (var@6).0
-tl := move (var@6).1
-var@10 := copy hd
-var@9 := move var@10 == 0: i32
-var@8 := ¬ move var@9
-assert(¬move var@8)
-drop(tl)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  set_discriminant(l, 0)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -10156,9 +11682,24 @@ return
   var@10 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: set_discriminant(l, 0)
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@7 := move l;
+  var@6 := move split_list<i32>(move var@7);
+  hd := copy (var@6).0;
+  tl := move (var@6).1;
+  var@10 := copy hd;
+  var@9 := move var@10 == 0: i32;
+  var@8 := ¬ move var@9;
+  assert(¬move var@8);
+  drop(tl);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -10176,18 +11717,15 @@ About to evaluate statement: set_discriminant(l, 0)
   var@10 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@7 := move l
-var@6 := move split_list<i32>(move var@7)
-hd := copy (var@6).0
-tl := move (var@6).1
-var@10 := copy hd
-var@9 := move var@10 == 0: i32
-var@8 := ¬ move var@9
-assert(¬move var@8)
-drop(tl)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@7 := move l
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -10205,10 +11743,11 @@ return
   var@10 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@7 := move l
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -10233,6 +11772,20 @@ move l
 [Debug] Value to move:
 test1::List::Cons { 0 = 0: i32; 1 = @Box(test1::List::Nil); }
 [Debug] 
+**About to evaluate statement**: [
+  var@6 := move split_list<i32>(move var@7);
+  hd := copy (var@6).0;
+  tl := move (var@6).1;
+  var@10 := copy hd;
+  var@9 := move var@10 == 0: i32;
+  var@8 := ¬ move var@9;
+  assert(¬move var@8);
+  drop(tl);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -10250,17 +11803,15 @@ test1::List::Cons { 0 = 0: i32; 1 = @Box(test1::List::Nil); }
   var@10 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@6 := move split_list<i32>(move var@7)
-hd := copy (var@6).0
-tl := move (var@6).1
-var@10 := copy hd
-var@9 := move var@10 == 0: i32
-var@8 := ¬ move var@9
-assert(¬move var@8)
-drop(tl)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@6 := move split_list<i32>(move var@7)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -10278,10 +11829,11 @@ return
   var@10 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@6 := move split_list<i32>(move var@7)
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -10306,6 +11858,33 @@ move var@7
 [Debug] Value to move:
 test1::List::Cons { 0 = 0: i32; 1 = @Box(test1::List::Nil); }
 [Debug] 
+**About to evaluate statement**: [
+  var@8 := false;
+  var@7 := false;
+  var@7 := true;
+  var@8 := true;
+  var@2 := discriminant(l);
+  switch (move var@2) {
+    0: isize => {
+      var@8 := false;
+      hd := move (l as test1::List::Cons).0;
+      var@7 := false;
+      tl := move (l as test1::List::Cons).1;
+      var@5 := move hd;
+      var@6 := move deref_box(tl);
+      (var@0).0 := move var@5;
+      (var@0).1 := move var@6;
+      var@9 := move alloc::alloc::box_free<test1::List<i32>>(move tl);
+      return
+    }
+    _ => {
+      panic
+    }
+  }
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -10338,30 +11917,15 @@ test1::List::Cons { 0 = 0: i32; 1 = @Box(test1::List::Nil); }
   var@10 -> ⊥ : isize ;
 }
 
-About to evaluate statement: var@8 := false
-var@7 := false
-var@7 := true
-var@8 := true
-var@2 := discriminant(l)
-switch (move var@2) {
-  0: isize => {
-    var@8 := false
-    hd := move (l as test1::List::Cons).0
-    var@7 := false
-    tl := move (l as test1::List::Cons).1
-    var@5 := move hd
-    var@6 := move deref_box(tl)
-    (var@0).0 := move var@5
-    (var@0).1 := move var@6
-    var@9 := move alloc::alloc::box_free<test1::List<i32>>(move tl)
-    return
-  }
-  _ => {
-    panic
-  }
-}
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@8 := false
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -10394,10 +11958,11 @@ switch (move var@2) {
   var@10 -> ⊥ : isize ;
 }
 
-About to evaluate statement: var@8 := false
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -10435,6 +12000,32 @@ About to evaluate statement: var@8 := false
 false
 
 [Debug] 
+**About to evaluate statement**: [
+  var@7 := false;
+  var@7 := true;
+  var@8 := true;
+  var@2 := discriminant(l);
+  switch (move var@2) {
+    0: isize => {
+      var@8 := false;
+      hd := move (l as test1::List::Cons).0;
+      var@7 := false;
+      tl := move (l as test1::List::Cons).1;
+      var@5 := move hd;
+      var@6 := move deref_box(tl);
+      (var@0).0 := move var@5;
+      (var@0).1 := move var@6;
+      var@9 := move alloc::alloc::box_free<test1::List<i32>>(move tl);
+      return
+    }
+    _ => {
+      panic
+    }
+  }
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -10467,29 +12058,15 @@ false
   var@10 -> ⊥ : isize ;
 }
 
-About to evaluate statement: var@7 := false
-var@7 := true
-var@8 := true
-var@2 := discriminant(l)
-switch (move var@2) {
-  0: isize => {
-    var@8 := false
-    hd := move (l as test1::List::Cons).0
-    var@7 := false
-    tl := move (l as test1::List::Cons).1
-    var@5 := move hd
-    var@6 := move deref_box(tl)
-    (var@0).0 := move var@5
-    (var@0).1 := move var@6
-    var@9 := move alloc::alloc::box_free<test1::List<i32>>(move tl)
-    return
-  }
-  _ => {
-    panic
-  }
-}
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@7 := false
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -10522,10 +12099,11 @@ switch (move var@2) {
   var@10 -> ⊥ : isize ;
 }
 
-About to evaluate statement: var@7 := false
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -10563,6 +12141,31 @@ About to evaluate statement: var@7 := false
 false
 
 [Debug] 
+**About to evaluate statement**: [
+  var@7 := true;
+  var@8 := true;
+  var@2 := discriminant(l);
+  switch (move var@2) {
+    0: isize => {
+      var@8 := false;
+      hd := move (l as test1::List::Cons).0;
+      var@7 := false;
+      tl := move (l as test1::List::Cons).1;
+      var@5 := move hd;
+      var@6 := move deref_box(tl);
+      (var@0).0 := move var@5;
+      (var@0).1 := move var@6;
+      var@9 := move alloc::alloc::box_free<test1::List<i32>>(move tl);
+      return
+    }
+    _ => {
+      panic
+    }
+  }
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -10595,28 +12198,15 @@ false
   var@10 -> ⊥ : isize ;
 }
 
-About to evaluate statement: var@7 := true
-var@8 := true
-var@2 := discriminant(l)
-switch (move var@2) {
-  0: isize => {
-    var@8 := false
-    hd := move (l as test1::List::Cons).0
-    var@7 := false
-    tl := move (l as test1::List::Cons).1
-    var@5 := move hd
-    var@6 := move deref_box(tl)
-    (var@0).0 := move var@5
-    (var@0).1 := move var@6
-    var@9 := move alloc::alloc::box_free<test1::List<i32>>(move tl)
-    return
-  }
-  _ => {
-    panic
-  }
-}
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@7 := true
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -10649,10 +12239,11 @@ switch (move var@2) {
   var@10 -> ⊥ : isize ;
 }
 
-About to evaluate statement: var@7 := true
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -10690,6 +12281,30 @@ About to evaluate statement: var@7 := true
 true
 
 [Debug] 
+**About to evaluate statement**: [
+  var@8 := true;
+  var@2 := discriminant(l);
+  switch (move var@2) {
+    0: isize => {
+      var@8 := false;
+      hd := move (l as test1::List::Cons).0;
+      var@7 := false;
+      tl := move (l as test1::List::Cons).1;
+      var@5 := move hd;
+      var@6 := move deref_box(tl);
+      (var@0).0 := move var@5;
+      (var@0).1 := move var@6;
+      var@9 := move alloc::alloc::box_free<test1::List<i32>>(move tl);
+      return
+    }
+    _ => {
+      panic
+    }
+  }
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -10722,27 +12337,15 @@ true
   var@10 -> ⊥ : isize ;
 }
 
-About to evaluate statement: var@8 := true
-var@2 := discriminant(l)
-switch (move var@2) {
-  0: isize => {
-    var@8 := false
-    hd := move (l as test1::List::Cons).0
-    var@7 := false
-    tl := move (l as test1::List::Cons).1
-    var@5 := move hd
-    var@6 := move deref_box(tl)
-    (var@0).0 := move var@5
-    (var@0).1 := move var@6
-    var@9 := move alloc::alloc::box_free<test1::List<i32>>(move tl)
-    return
-  }
-  _ => {
-    panic
-  }
-}
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@8 := true
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -10775,10 +12378,11 @@ switch (move var@2) {
   var@10 -> ⊥ : isize ;
 }
 
-About to evaluate statement: var@8 := true
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -10816,6 +12420,29 @@ About to evaluate statement: var@8 := true
 true
 
 [Debug] 
+**About to evaluate statement**: [
+  var@2 := discriminant(l);
+  switch (move var@2) {
+    0: isize => {
+      var@8 := false;
+      hd := move (l as test1::List::Cons).0;
+      var@7 := false;
+      tl := move (l as test1::List::Cons).1;
+      var@5 := move hd;
+      var@6 := move deref_box(tl);
+      (var@0).0 := move var@5;
+      (var@0).1 := move var@6;
+      var@9 := move alloc::alloc::box_free<test1::List<i32>>(move tl);
+      return
+    }
+    _ => {
+      panic
+    }
+  }
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -10848,26 +12475,15 @@ true
   var@10 -> ⊥ : isize ;
 }
 
-About to evaluate statement: var@2 := discriminant(l)
-switch (move var@2) {
-  0: isize => {
-    var@8 := false
-    hd := move (l as test1::List::Cons).0
-    var@7 := false
-    tl := move (l as test1::List::Cons).1
-    var@5 := move hd
-    var@6 := move deref_box(tl)
-    (var@0).0 := move var@5
-    (var@0).1 := move var@6
-    var@9 := move alloc::alloc::box_free<test1::List<i32>>(move tl)
-    return
-  }
-  _ => {
-    panic
-  }
-}
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@2 := discriminant(l)
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -10900,9 +12516,31 @@ switch (move var@2) {
   var@10 -> ⊥ : isize ;
 }
 
-About to evaluate statement: var@2 := discriminant(l)
+
 
 [Debug] 
+**About to evaluate statement**: [
+  switch (move var@2) {
+    0: isize => {
+      var@8 := false;
+      hd := move (l as test1::List::Cons).0;
+      var@7 := false;
+      tl := move (l as test1::List::Cons).1;
+      var@5 := move hd;
+      var@6 := move deref_box(tl);
+      (var@0).0 := move var@5;
+      (var@0).1 := move var@6;
+      var@9 := move alloc::alloc::box_free<test1::List<i32>>(move tl);
+      return
+    }
+    _ => {
+      panic
+    }
+  }
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -10935,26 +12573,11 @@ About to evaluate statement: var@2 := discriminant(l)
   var@10 -> ⊥ : isize ;
 }
 
-About to evaluate statement: switch (move var@2) {
-  0: isize => {
-    var@8 := false
-    hd := move (l as test1::List::Cons).0
-    var@7 := false
-    tl := move (l as test1::List::Cons).1
-    var@5 := move hd
-    var@6 := move deref_box(tl)
-    (var@0).0 := move var@5
-    (var@0).1 := move var@6
-    var@9 := move alloc::alloc::box_free<test1::List<i32>>(move tl)
-    return
-  }
-  _ => {
-    panic
-  }
-}
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -10994,6 +12617,21 @@ move var@2
 [Debug] Value to move:
 0: isize
 [Debug] 
+**About to evaluate statement**: [
+  var@8 := false;
+  hd := move (l as test1::List::Cons).0;
+  var@7 := false;
+  tl := move (l as test1::List::Cons).1;
+  var@5 := move hd;
+  var@6 := move deref_box(tl);
+  (var@0).0 := move var@5;
+  (var@0).1 := move var@6;
+  var@9 := move alloc::alloc::box_free<test1::List<i32>>(move tl);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -11026,18 +12664,15 @@ move var@2
   var@10 -> ⊥ : isize ;
 }
 
-About to evaluate statement: var@8 := false
-hd := move (l as test1::List::Cons).0
-var@7 := false
-tl := move (l as test1::List::Cons).1
-var@5 := move hd
-var@6 := move deref_box(tl)
-(var@0).0 := move var@5
-(var@0).1 := move var@6
-var@9 := move alloc::alloc::box_free<test1::List<i32>>(move tl)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@8 := false
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -11070,10 +12705,11 @@ return
   var@10 -> ⊥ : isize ;
 }
 
-About to evaluate statement: var@8 := false
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -11111,6 +12747,20 @@ About to evaluate statement: var@8 := false
 false
 
 [Debug] 
+**About to evaluate statement**: [
+  hd := move (l as test1::List::Cons).0;
+  var@7 := false;
+  tl := move (l as test1::List::Cons).1;
+  var@5 := move hd;
+  var@6 := move deref_box(tl);
+  (var@0).0 := move var@5;
+  (var@0).1 := move var@6;
+  var@9 := move alloc::alloc::box_free<test1::List<i32>>(move tl);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -11143,17 +12793,15 @@ false
   var@10 -> ⊥ : isize ;
 }
 
-About to evaluate statement: hd := move (l as test1::List::Cons).0
-var@7 := false
-tl := move (l as test1::List::Cons).1
-var@5 := move hd
-var@6 := move deref_box(tl)
-(var@0).0 := move var@5
-(var@0).1 := move var@6
-var@9 := move alloc::alloc::box_free<test1::List<i32>>(move tl)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  hd := move (l as test1::List::Cons).0
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -11186,10 +12834,11 @@ return
   var@10 -> ⊥ : isize ;
 }
 
-About to evaluate statement: hd := move (l as test1::List::Cons).0
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -11229,6 +12878,19 @@ move (l as test1::List::Cons).0
 [Debug] Value to move:
 0: i32
 [Debug] 
+**About to evaluate statement**: [
+  var@7 := false;
+  tl := move (l as test1::List::Cons).1;
+  var@5 := move hd;
+  var@6 := move deref_box(tl);
+  (var@0).0 := move var@5;
+  (var@0).1 := move var@6;
+  var@9 := move alloc::alloc::box_free<test1::List<i32>>(move tl);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -11261,16 +12923,15 @@ move (l as test1::List::Cons).0
   var@10 -> ⊥ : isize ;
 }
 
-About to evaluate statement: var@7 := false
-tl := move (l as test1::List::Cons).1
-var@5 := move hd
-var@6 := move deref_box(tl)
-(var@0).0 := move var@5
-(var@0).1 := move var@6
-var@9 := move alloc::alloc::box_free<test1::List<i32>>(move tl)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@7 := false
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -11303,10 +12964,11 @@ return
   var@10 -> ⊥ : isize ;
 }
 
-About to evaluate statement: var@7 := false
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -11344,6 +13006,18 @@ About to evaluate statement: var@7 := false
 false
 
 [Debug] 
+**About to evaluate statement**: [
+  tl := move (l as test1::List::Cons).1;
+  var@5 := move hd;
+  var@6 := move deref_box(tl);
+  (var@0).0 := move var@5;
+  (var@0).1 := move var@6;
+  var@9 := move alloc::alloc::box_free<test1::List<i32>>(move tl);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -11376,15 +13050,15 @@ false
   var@10 -> ⊥ : isize ;
 }
 
-About to evaluate statement: tl := move (l as test1::List::Cons).1
-var@5 := move hd
-var@6 := move deref_box(tl)
-(var@0).0 := move var@5
-(var@0).1 := move var@6
-var@9 := move alloc::alloc::box_free<test1::List<i32>>(move tl)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  tl := move (l as test1::List::Cons).1
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -11417,10 +13091,11 @@ return
   var@10 -> ⊥ : isize ;
 }
 
-About to evaluate statement: tl := move (l as test1::List::Cons).1
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -11460,6 +13135,17 @@ move (l as test1::List::Cons).1
 [Debug] Value to move:
 @Box(test1::List::Nil)
 [Debug] 
+**About to evaluate statement**: [
+  var@5 := move hd;
+  var@6 := move deref_box(tl);
+  (var@0).0 := move var@5;
+  (var@0).1 := move var@6;
+  var@9 := move alloc::alloc::box_free<test1::List<i32>>(move tl);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -11492,14 +13178,15 @@ move (l as test1::List::Cons).1
   var@10 -> ⊥ : isize ;
 }
 
-About to evaluate statement: var@5 := move hd
-var@6 := move deref_box(tl)
-(var@0).0 := move var@5
-(var@0).1 := move var@6
-var@9 := move alloc::alloc::box_free<test1::List<i32>>(move tl)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@5 := move hd
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -11532,10 +13219,11 @@ return
   var@10 -> ⊥ : isize ;
 }
 
-About to evaluate statement: var@5 := move hd
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -11575,6 +13263,16 @@ move hd
 [Debug] Value to move:
 0: i32
 [Debug] 
+**About to evaluate statement**: [
+  var@6 := move deref_box(tl);
+  (var@0).0 := move var@5;
+  (var@0).1 := move var@6;
+  var@9 := move alloc::alloc::box_free<test1::List<i32>>(move tl);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -11607,13 +13305,15 @@ move hd
   var@10 -> ⊥ : isize ;
 }
 
-About to evaluate statement: var@6 := move deref_box(tl)
-(var@0).0 := move var@5
-(var@0).1 := move var@6
-var@9 := move alloc::alloc::box_free<test1::List<i32>>(move tl)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@6 := move deref_box(tl)
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -11646,10 +13346,11 @@ return
   var@10 -> ⊥ : isize ;
 }
 
-About to evaluate statement: var@6 := move deref_box(tl)
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -11689,6 +13390,15 @@ move deref_box(tl)
 [Debug] Value to move:
 test1::List::Nil
 [Debug] 
+**About to evaluate statement**: [
+  (var@0).0 := move var@5;
+  (var@0).1 := move var@6;
+  var@9 := move alloc::alloc::box_free<test1::List<i32>>(move tl);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -11721,12 +13431,15 @@ test1::List::Nil
   var@10 -> ⊥ : isize ;
 }
 
-About to evaluate statement: (var@0).0 := move var@5
-(var@0).1 := move var@6
-var@9 := move alloc::alloc::box_free<test1::List<i32>>(move tl)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  (var@0).0 := move var@5
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -11759,10 +13472,11 @@ return
   var@10 -> ⊥ : isize ;
 }
 
-About to evaluate statement: (var@0).0 := move var@5
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -11808,6 +13522,14 @@ ty: (Types.Adt (Types.Tuple, [],
      (Types.Adt ((Types.AdtId 1), [], [(Types.Integer Types.I32)]))]
    ))
 [Debug] 
+**About to evaluate statement**: [
+  (var@0).1 := move var@6;
+  var@9 := move alloc::alloc::box_free<test1::List<i32>>(move tl);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -11840,11 +13562,15 @@ ty: (Types.Adt (Types.Tuple, [],
   var@10 -> ⊥ : isize ;
 }
 
-About to evaluate statement: (var@0).1 := move var@6
-var@9 := move alloc::alloc::box_free<test1::List<i32>>(move tl)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  (var@0).1 := move var@6
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -11877,10 +13603,11 @@ return
   var@10 -> ⊥ : isize ;
 }
 
-About to evaluate statement: (var@0).1 := move var@6
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -11920,6 +13647,13 @@ move var@6
 [Debug] Value to move:
 test1::List::Nil
 [Debug] 
+**About to evaluate statement**: [
+  var@9 := move alloc::alloc::box_free<test1::List<i32>>(move tl);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -11952,10 +13686,15 @@ test1::List::Nil
   var@10 -> ⊥ : isize ;
 }
 
-About to evaluate statement: var@9 := move alloc::alloc::box_free<test1::List<i32>>(move tl)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@9 := move alloc::alloc::box_free<test1::List<i32>>(move tl)
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -11988,7 +13727,7 @@ return
   var@10 -> ⊥ : isize ;
 }
 
-About to evaluate statement: var@9 := move alloc::alloc::box_free<test1::List<i32>>(move tl)
+
 
 [Debug] eval_non_local_function_call:
 - fid:CfimAst.BoxFree
@@ -11997,6 +13736,12 @@ About to evaluate statement: var@9 := move alloc::alloc::box_free<test1::List<i3
 - dest: var@9
 [Debug] drop_value: place: tl
 [Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -12029,9 +13774,10 @@ About to evaluate statement: var@9 := move alloc::alloc::box_free<test1::List<i3
   var@10 -> ⊥ : isize ;
 }
 
-About to evaluate statement: return
+
 
 [Debug] ctx_pop_frame:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -12076,6 +13822,7 @@ About to evaluate statement: return
 [Debug] drop_value: place: var@2
 [Debug] drop_value: place: l
 [Debug] ctx_pop_frame: after dropping local variables:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -12110,6 +13857,7 @@ About to evaluate statement: return
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -12149,6 +13897,19 @@ move var@0
 [Debug] Value to move:
 (0: i32, test1::List::Nil)
 [Debug] 
+**About to evaluate statement**: [
+  hd := copy (var@6).0;
+  tl := move (var@6).1;
+  var@10 := copy hd;
+  var@9 := move var@10 == 0: i32;
+  var@8 := ¬ move var@9;
+  assert(¬move var@8);
+  drop(tl);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -12166,16 +13927,15 @@ move var@0
   var@10 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: hd := copy (var@6).0
-tl := move (var@6).1
-var@10 := copy hd
-var@9 := move var@10 == 0: i32
-var@8 := ¬ move var@9
-assert(¬move var@8)
-drop(tl)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  hd := copy (var@6).0
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -12193,10 +13953,11 @@ return
   var@10 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: hd := copy (var@6).0
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -12221,6 +13982,18 @@ copy (var@6).0
 [Debug] Value to copy:
 0: i32
 [Debug] 
+**About to evaluate statement**: [
+  tl := move (var@6).1;
+  var@10 := copy hd;
+  var@9 := move var@10 == 0: i32;
+  var@8 := ¬ move var@9;
+  assert(¬move var@8);
+  drop(tl);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -12238,15 +14011,15 @@ copy (var@6).0
   var@10 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: tl := move (var@6).1
-var@10 := copy hd
-var@9 := move var@10 == 0: i32
-var@8 := ¬ move var@9
-assert(¬move var@8)
-drop(tl)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  tl := move (var@6).1
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -12264,10 +14037,11 @@ return
   var@10 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: tl := move (var@6).1
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -12292,6 +14066,17 @@ move (var@6).1
 [Debug] Value to move:
 test1::List::Nil
 [Debug] 
+**About to evaluate statement**: [
+  var@10 := copy hd;
+  var@9 := move var@10 == 0: i32;
+  var@8 := ¬ move var@9;
+  assert(¬move var@8);
+  drop(tl);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -12309,14 +14094,15 @@ test1::List::Nil
   var@10 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@10 := copy hd
-var@9 := move var@10 == 0: i32
-var@8 := ¬ move var@9
-assert(¬move var@8)
-drop(tl)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@10 := copy hd
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -12334,10 +14120,11 @@ return
   var@10 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@10 := copy hd
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -12362,6 +14149,16 @@ copy hd
 [Debug] Value to copy:
 0: i32
 [Debug] 
+**About to evaluate statement**: [
+  var@9 := move var@10 == 0: i32;
+  var@8 := ¬ move var@9;
+  assert(¬move var@8);
+  drop(tl);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -12379,13 +14176,15 @@ copy hd
   var@10 -> 0: i32 ;
 }
 
-About to evaluate statement: var@9 := move var@10 == 0: i32
-var@8 := ¬ move var@9
-assert(¬move var@8)
-drop(tl)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@9 := move var@10 == 0: i32
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -12403,10 +14202,11 @@ return
   var@10 -> 0: i32 ;
 }
 
-About to evaluate statement: var@9 := move var@10 == 0: i32
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -12432,6 +14232,7 @@ move var@10
 0: i32
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -12454,6 +14255,15 @@ move var@10
 0: i32
 
 [Debug] 
+**About to evaluate statement**: [
+  var@8 := ¬ move var@9;
+  assert(¬move var@8);
+  drop(tl);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -12471,12 +14281,15 @@ move var@10
   var@10 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@8 := ¬ move var@9
-assert(¬move var@8)
-drop(tl)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@8 := ¬ move var@9
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -12494,10 +14307,11 @@ return
   var@10 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@8 := ¬ move var@9
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -12522,6 +14336,14 @@ move var@9
 [Debug] Value to move:
 true
 [Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@8);
+  drop(tl);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -12539,11 +14361,15 @@ true
   var@10 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: assert(¬move var@8)
-drop(tl)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@8)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -12561,10 +14387,11 @@ return
   var@10 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: assert(¬move var@8)
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -12589,6 +14416,13 @@ move var@8
 [Debug] Value to move:
 false
 [Debug] 
+**About to evaluate statement**: [
+  drop(tl);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -12606,10 +14440,15 @@ false
   var@10 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: drop(tl)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  drop(tl)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -12627,10 +14466,16 @@ return
   var@10 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: drop(tl)
+
 
 [Debug] drop_value: place: tl
 [Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -12648,10 +14493,37 @@ About to evaluate statement: drop(tl)
   var@10 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: return
+
 
 [Debug] test_unit_function: get_elem_test
 [Debug] 
+**About to evaluate statement**: [
+  x := 0: i32;
+  y := 0: i32;
+  var@5 := &mut x;
+  var@4 := &two-phase *(var@5);
+  var@7 := &mut y;
+  var@6 := &two-phase *(var@7);
+  z := move get_elem<i32>(true, move var@4, move var@6);
+  var@8 := copy *(z);
+  *(z) := copy var@8 + 1: i32;
+  var@12 := copy *(z);
+  var@11 := move var@12 == 1: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy x;
+  var@14 := move var@15 == 1: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 0: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -12677,30 +14549,15 @@ About to evaluate statement: return
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: x := 0: i32
-y := 0: i32
-var@5 := &mut x
-var@4 := &two-phase *(var@5)
-var@7 := &mut y
-var@6 := &two-phase *(var@7)
-z := move get_elem<i32>(true, move var@4, move var@6)
-var@8 := copy *(z)
-*(z) := copy var@8 + 1: i32
-var@12 := copy *(z)
-var@11 := move var@12 == 1: i32
-var@10 := ¬ move var@11
-assert(¬move var@10)
-var@15 := copy x
-var@14 := move var@15 == 1: i32
-var@13 := ¬ move var@14
-assert(¬move var@13)
-var@18 := copy y
-var@17 := move var@18 == 0: i32
-var@16 := ¬ move var@17
-assert(¬move var@16)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  x := 0: i32
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -12726,10 +14583,11 @@ return
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: x := 0: i32
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -12760,6 +14618,32 @@ About to evaluate statement: x := 0: i32
 0: i32
 
 [Debug] 
+**About to evaluate statement**: [
+  y := 0: i32;
+  var@5 := &mut x;
+  var@4 := &two-phase *(var@5);
+  var@7 := &mut y;
+  var@6 := &two-phase *(var@7);
+  z := move get_elem<i32>(true, move var@4, move var@6);
+  var@8 := copy *(z);
+  *(z) := copy var@8 + 1: i32;
+  var@12 := copy *(z);
+  var@11 := move var@12 == 1: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy x;
+  var@14 := move var@15 == 1: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 0: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -12785,29 +14669,15 @@ About to evaluate statement: x := 0: i32
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: y := 0: i32
-var@5 := &mut x
-var@4 := &two-phase *(var@5)
-var@7 := &mut y
-var@6 := &two-phase *(var@7)
-z := move get_elem<i32>(true, move var@4, move var@6)
-var@8 := copy *(z)
-*(z) := copy var@8 + 1: i32
-var@12 := copy *(z)
-var@11 := move var@12 == 1: i32
-var@10 := ¬ move var@11
-assert(¬move var@10)
-var@15 := copy x
-var@14 := move var@15 == 1: i32
-var@13 := ¬ move var@14
-assert(¬move var@13)
-var@18 := copy y
-var@17 := move var@18 == 0: i32
-var@16 := ¬ move var@17
-assert(¬move var@16)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  y := 0: i32
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -12833,10 +14703,11 @@ return
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: y := 0: i32
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -12867,6 +14738,31 @@ About to evaluate statement: y := 0: i32
 0: i32
 
 [Debug] 
+**About to evaluate statement**: [
+  var@5 := &mut x;
+  var@4 := &two-phase *(var@5);
+  var@7 := &mut y;
+  var@6 := &two-phase *(var@7);
+  z := move get_elem<i32>(true, move var@4, move var@6);
+  var@8 := copy *(z);
+  *(z) := copy var@8 + 1: i32;
+  var@12 := copy *(z);
+  var@11 := move var@12 == 1: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy x;
+  var@14 := move var@15 == 1: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 0: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -12892,28 +14788,15 @@ About to evaluate statement: y := 0: i32
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@5 := &mut x
-var@4 := &two-phase *(var@5)
-var@7 := &mut y
-var@6 := &two-phase *(var@7)
-z := move get_elem<i32>(true, move var@4, move var@6)
-var@8 := copy *(z)
-*(z) := copy var@8 + 1: i32
-var@12 := copy *(z)
-var@11 := move var@12 == 1: i32
-var@10 := ¬ move var@11
-assert(¬move var@10)
-var@15 := copy x
-var@14 := move var@15 == 1: i32
-var@13 := ¬ move var@14
-assert(¬move var@13)
-var@18 := copy y
-var@17 := move var@18 == 0: i32
-var@16 := ¬ move var@17
-assert(¬move var@16)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@5 := &mut x
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -12939,9 +14822,33 @@ return
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@5 := &mut x
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@4 := &two-phase *(var@5);
+  var@7 := &mut y;
+  var@6 := &two-phase *(var@7);
+  z := move get_elem<i32>(true, move var@4, move var@6);
+  var@8 := copy *(z);
+  *(z) := copy var@8 + 1: i32;
+  var@12 := copy *(z);
+  var@11 := move var@12 == 1: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy x;
+  var@14 := move var@15 == 1: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 0: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -12967,27 +14874,15 @@ About to evaluate statement: var@5 := &mut x
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@4 := &two-phase *(var@5)
-var@7 := &mut y
-var@6 := &two-phase *(var@7)
-z := move get_elem<i32>(true, move var@4, move var@6)
-var@8 := copy *(z)
-*(z) := copy var@8 + 1: i32
-var@12 := copy *(z)
-var@11 := move var@12 == 1: i32
-var@10 := ¬ move var@11
-assert(¬move var@10)
-var@15 := copy x
-var@14 := move var@15 == 1: i32
-var@13 := ¬ move var@14
-assert(¬move var@13)
-var@18 := copy y
-var@17 := move var@18 == 0: i32
-var@16 := ¬ move var@17
-assert(¬move var@16)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@4 := &two-phase *(var@5)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -13013,9 +14908,32 @@ return
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@4 := &two-phase *(var@5)
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@7 := &mut y;
+  var@6 := &two-phase *(var@7);
+  z := move get_elem<i32>(true, move var@4, move var@6);
+  var@8 := copy *(z);
+  *(z) := copy var@8 + 1: i32;
+  var@12 := copy *(z);
+  var@11 := move var@12 == 1: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy x;
+  var@14 := move var@15 == 1: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 0: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -13041,26 +14959,15 @@ About to evaluate statement: var@4 := &two-phase *(var@5)
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@7 := &mut y
-var@6 := &two-phase *(var@7)
-z := move get_elem<i32>(true, move var@4, move var@6)
-var@8 := copy *(z)
-*(z) := copy var@8 + 1: i32
-var@12 := copy *(z)
-var@11 := move var@12 == 1: i32
-var@10 := ¬ move var@11
-assert(¬move var@10)
-var@15 := copy x
-var@14 := move var@15 == 1: i32
-var@13 := ¬ move var@14
-assert(¬move var@13)
-var@18 := copy y
-var@17 := move var@18 == 0: i32
-var@16 := ¬ move var@17
-assert(¬move var@16)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@7 := &mut y
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -13086,9 +14993,31 @@ return
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@7 := &mut y
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@6 := &two-phase *(var@7);
+  z := move get_elem<i32>(true, move var@4, move var@6);
+  var@8 := copy *(z);
+  *(z) := copy var@8 + 1: i32;
+  var@12 := copy *(z);
+  var@11 := move var@12 == 1: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy x;
+  var@14 := move var@15 == 1: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 0: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -13114,25 +15043,15 @@ About to evaluate statement: var@7 := &mut y
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@6 := &two-phase *(var@7)
-z := move get_elem<i32>(true, move var@4, move var@6)
-var@8 := copy *(z)
-*(z) := copy var@8 + 1: i32
-var@12 := copy *(z)
-var@11 := move var@12 == 1: i32
-var@10 := ¬ move var@11
-assert(¬move var@10)
-var@15 := copy x
-var@14 := move var@15 == 1: i32
-var@13 := ¬ move var@14
-assert(¬move var@13)
-var@18 := copy y
-var@17 := move var@18 == 0: i32
-var@16 := ¬ move var@17
-assert(¬move var@16)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@6 := &two-phase *(var@7)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -13158,9 +15077,30 @@ return
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@6 := &two-phase *(var@7)
+
 
 [Debug] 
+**About to evaluate statement**: [
+  z := move get_elem<i32>(true, move var@4, move var@6);
+  var@8 := copy *(z);
+  *(z) := copy var@8 + 1: i32;
+  var@12 := copy *(z);
+  var@11 := move var@12 == 1: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy x;
+  var@14 := move var@15 == 1: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 0: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -13186,24 +15126,15 @@ About to evaluate statement: var@6 := &two-phase *(var@7)
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: z := move get_elem<i32>(true, move var@4, move var@6)
-var@8 := copy *(z)
-*(z) := copy var@8 + 1: i32
-var@12 := copy *(z)
-var@11 := move var@12 == 1: i32
-var@10 := ¬ move var@11
-assert(¬move var@10)
-var@15 := copy x
-var@14 := move var@15 == 1: i32
-var@13 := ¬ move var@14
-assert(¬move var@13)
-var@18 := copy y
-var@17 := move var@18 == 0: i32
-var@16 := ¬ move var@17
-assert(¬move var@16)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  z := move get_elem<i32>(true, move var@4, move var@6)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -13229,10 +15160,11 @@ return
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: z := move get_elem<i32>(true, move var@4, move var@6)
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -13264,6 +15196,7 @@ true
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -13301,6 +15234,7 @@ move var@4
 &mut@1 (0: i32)
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -13337,6 +15271,19 @@ move var@6
 [Debug] Value to move:
 &mut@3 (0: i32)
 [Debug] 
+**About to evaluate statement**: [
+  var@4 := copy b;
+  if (move var@4) {
+    var@0 := &mut *(x)
+  }
+  else {
+    var@0 := move y
+  };
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -13371,16 +15318,15 @@ move var@6
   var@4 -> ⊥ : bool ;
 }
 
-About to evaluate statement: var@4 := copy b
-if (move var@4) {
-  var@0 := &mut *(x)
-}
-else {
-  var@0 := move y
-}
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@4 := copy b
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -13415,10 +15361,11 @@ return
   var@4 -> ⊥ : bool ;
 }
 
-About to evaluate statement: var@4 := copy b
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -13460,6 +15407,18 @@ copy b
 [Debug] Value to copy:
 true
 [Debug] 
+**About to evaluate statement**: [
+  if (move var@4) {
+    var@0 := &mut *(x)
+  }
+  else {
+    var@0 := move y
+  };
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -13494,15 +15453,20 @@ true
   var@4 -> true ;
 }
 
-About to evaluate statement: if (move var@4) {
-  var@0 := &mut *(x)
-}
-else {
-  var@0 := move y
-}
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  if (move var@4) {
+    var@0 := &mut *(x)
+  }
+  else {
+    var@0 := move y
+  }
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -13537,15 +15501,11 @@ return
   var@4 -> true ;
 }
 
-About to evaluate statement: if (move var@4) {
-  var@0 := &mut *(x)
-}
-else {
-  var@0 := move y
-}
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -13587,6 +15547,12 @@ move var@4
 [Debug] Value to move:
 true
 [Debug] 
+**About to evaluate statement**: [
+  var@0 := &mut *(x)
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -13621,9 +15587,15 @@ true
   var@4 -> ⊥ : bool ;
 }
 
-About to evaluate statement: var@0 := &mut *(x)
+
 
 [Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -13658,9 +15630,10 @@ About to evaluate statement: var@0 := &mut *(x)
   var@4 -> ⊥ : bool ;
 }
 
-About to evaluate statement: return
+
 
 [Debug] ctx_pop_frame:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -13701,6 +15674,7 @@ About to evaluate statement: return
 [Debug] drop_value: place: x
 [Debug] drop_value: place: b
 [Debug] ctx_pop_frame: after dropping local variables:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -13737,6 +15711,7 @@ About to evaluate statement: return
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -13778,6 +15753,26 @@ move var@0
 [Debug] Value to move:
 &mut@4 (0: i32)
 [Debug] 
+**About to evaluate statement**: [
+  var@8 := copy *(z);
+  *(z) := copy var@8 + 1: i32;
+  var@12 := copy *(z);
+  var@11 := move var@12 == 1: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy x;
+  var@14 := move var@15 == 1: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 0: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -13803,23 +15798,15 @@ move var@0
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@8 := copy *(z)
-*(z) := copy var@8 + 1: i32
-var@12 := copy *(z)
-var@11 := move var@12 == 1: i32
-var@10 := ¬ move var@11
-assert(¬move var@10)
-var@15 := copy x
-var@14 := move var@15 == 1: i32
-var@13 := ¬ move var@14
-assert(¬move var@13)
-var@18 := copy y
-var@17 := move var@18 == 0: i32
-var@16 := ¬ move var@17
-assert(¬move var@16)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@8 := copy *(z)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -13845,10 +15832,11 @@ return
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@8 := copy *(z)
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -13881,6 +15869,25 @@ copy *(z)
 [Debug] Value to copy:
 0: i32
 [Debug] 
+**About to evaluate statement**: [
+  *(z) := copy var@8 + 1: i32;
+  var@12 := copy *(z);
+  var@11 := move var@12 == 1: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy x;
+  var@14 := move var@15 == 1: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 0: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -13906,22 +15913,15 @@ copy *(z)
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: *(z) := copy var@8 + 1: i32
-var@12 := copy *(z)
-var@11 := move var@12 == 1: i32
-var@10 := ¬ move var@11
-assert(¬move var@10)
-var@15 := copy x
-var@14 := move var@15 == 1: i32
-var@13 := ¬ move var@14
-assert(¬move var@13)
-var@18 := copy y
-var@17 := move var@18 == 0: i32
-var@16 := ¬ move var@17
-assert(¬move var@16)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  *(z) := copy var@8 + 1: i32
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -13947,10 +15947,11 @@ return
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: *(z) := copy var@8 + 1: i32
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -13984,6 +15985,7 @@ copy var@8
 0: i32
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -14014,6 +16016,24 @@ copy var@8
 1: i32
 
 [Debug] 
+**About to evaluate statement**: [
+  var@12 := copy *(z);
+  var@11 := move var@12 == 1: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy x;
+  var@14 := move var@15 == 1: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 0: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -14039,21 +16059,15 @@ copy var@8
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@12 := copy *(z)
-var@11 := move var@12 == 1: i32
-var@10 := ¬ move var@11
-assert(¬move var@10)
-var@15 := copy x
-var@14 := move var@15 == 1: i32
-var@13 := ¬ move var@14
-assert(¬move var@13)
-var@18 := copy y
-var@17 := move var@18 == 0: i32
-var@16 := ¬ move var@17
-assert(¬move var@16)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@12 := copy *(z)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -14079,10 +16093,11 @@ return
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@12 := copy *(z)
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -14115,6 +16130,23 @@ copy *(z)
 [Debug] Value to copy:
 1: i32
 [Debug] 
+**About to evaluate statement**: [
+  var@11 := move var@12 == 1: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy x;
+  var@14 := move var@15 == 1: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 0: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -14140,20 +16172,15 @@ copy *(z)
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@11 := move var@12 == 1: i32
-var@10 := ¬ move var@11
-assert(¬move var@10)
-var@15 := copy x
-var@14 := move var@15 == 1: i32
-var@13 := ¬ move var@14
-assert(¬move var@13)
-var@18 := copy y
-var@17 := move var@18 == 0: i32
-var@16 := ¬ move var@17
-assert(¬move var@16)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@11 := move var@12 == 1: i32
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -14179,10 +16206,11 @@ return
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@11 := move var@12 == 1: i32
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -14216,6 +16244,7 @@ move var@12
 1: i32
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -14246,6 +16275,22 @@ move var@12
 1: i32
 
 [Debug] 
+**About to evaluate statement**: [
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy x;
+  var@14 := move var@15 == 1: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 0: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -14271,19 +16316,15 @@ move var@12
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@10 := ¬ move var@11
-assert(¬move var@10)
-var@15 := copy x
-var@14 := move var@15 == 1: i32
-var@13 := ¬ move var@14
-assert(¬move var@13)
-var@18 := copy y
-var@17 := move var@18 == 0: i32
-var@16 := ¬ move var@17
-assert(¬move var@16)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@10 := ¬ move var@11
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -14309,10 +16350,11 @@ return
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@10 := ¬ move var@11
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -14345,6 +16387,21 @@ move var@11
 [Debug] Value to move:
 true
 [Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@10);
+  var@15 := copy x;
+  var@14 := move var@15 == 1: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 0: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -14370,18 +16427,15 @@ true
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: assert(¬move var@10)
-var@15 := copy x
-var@14 := move var@15 == 1: i32
-var@13 := ¬ move var@14
-assert(¬move var@13)
-var@18 := copy y
-var@17 := move var@18 == 0: i32
-var@16 := ¬ move var@17
-assert(¬move var@16)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@10)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -14407,10 +16461,11 @@ return
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: assert(¬move var@10)
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -14443,6 +16498,20 @@ move var@10
 [Debug] Value to move:
 false
 [Debug] 
+**About to evaluate statement**: [
+  var@15 := copy x;
+  var@14 := move var@15 == 1: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 0: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -14468,17 +16537,15 @@ false
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@15 := copy x
-var@14 := move var@15 == 1: i32
-var@13 := ¬ move var@14
-assert(¬move var@13)
-var@18 := copy y
-var@17 := move var@18 == 0: i32
-var@16 := ¬ move var@17
-assert(¬move var@16)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@15 := copy x
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -14504,10 +16571,11 @@ return
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@15 := copy x
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -14540,6 +16608,19 @@ copy x
 [Debug] Value to copy:
 1: i32
 [Debug] 
+**About to evaluate statement**: [
+  var@14 := move var@15 == 1: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 0: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -14565,16 +16646,15 @@ copy x
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@14 := move var@15 == 1: i32
-var@13 := ¬ move var@14
-assert(¬move var@13)
-var@18 := copy y
-var@17 := move var@18 == 0: i32
-var@16 := ¬ move var@17
-assert(¬move var@16)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@14 := move var@15 == 1: i32
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -14600,10 +16680,11 @@ return
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@14 := move var@15 == 1: i32
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -14637,6 +16718,7 @@ move var@15
 1: i32
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -14667,6 +16749,18 @@ move var@15
 1: i32
 
 [Debug] 
+**About to evaluate statement**: [
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 0: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -14692,15 +16786,15 @@ move var@15
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@13 := ¬ move var@14
-assert(¬move var@13)
-var@18 := copy y
-var@17 := move var@18 == 0: i32
-var@16 := ¬ move var@17
-assert(¬move var@16)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@13 := ¬ move var@14
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -14726,10 +16820,11 @@ return
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@13 := ¬ move var@14
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -14762,6 +16857,17 @@ move var@14
 [Debug] Value to move:
 true
 [Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 0: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -14787,14 +16893,15 @@ true
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: assert(¬move var@13)
-var@18 := copy y
-var@17 := move var@18 == 0: i32
-var@16 := ¬ move var@17
-assert(¬move var@16)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@13)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -14820,10 +16927,11 @@ return
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: assert(¬move var@13)
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -14856,6 +16964,16 @@ move var@13
 [Debug] Value to move:
 false
 [Debug] 
+**About to evaluate statement**: [
+  var@18 := copy y;
+  var@17 := move var@18 == 0: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -14881,13 +16999,15 @@ false
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@18 := copy y
-var@17 := move var@18 == 0: i32
-var@16 := ¬ move var@17
-assert(¬move var@16)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@18 := copy y
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -14913,10 +17033,11 @@ return
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@18 := copy y
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -14949,6 +17070,15 @@ copy y
 [Debug] Value to copy:
 0: i32
 [Debug] 
+**About to evaluate statement**: [
+  var@17 := move var@18 == 0: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -14974,12 +17104,15 @@ copy y
   var@18 -> 0: i32 ;
 }
 
-About to evaluate statement: var@17 := move var@18 == 0: i32
-var@16 := ¬ move var@17
-assert(¬move var@16)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@17 := move var@18 == 0: i32
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -15005,10 +17138,11 @@ return
   var@18 -> 0: i32 ;
 }
 
-About to evaluate statement: var@17 := move var@18 == 0: i32
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -15042,6 +17176,7 @@ move var@18
 0: i32
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -15072,6 +17207,14 @@ move var@18
 0: i32
 
 [Debug] 
+**About to evaluate statement**: [
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -15097,11 +17240,15 @@ move var@18
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@16 := ¬ move var@17
-assert(¬move var@16)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@16 := ¬ move var@17
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -15127,10 +17274,11 @@ return
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: var@16 := ¬ move var@17
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -15163,6 +17311,13 @@ move var@17
 [Debug] Value to move:
 true
 [Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -15188,10 +17343,15 @@ true
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: assert(¬move var@16)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@16)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -15217,10 +17377,11 @@ return
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: assert(¬move var@16)
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -15253,6 +17414,12 @@ move var@16
 [Debug] Value to move:
 false
 [Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -15278,10 +17445,29 @@ false
   var@18 -> ⊥ : i32 ;
 }
 
-About to evaluate statement: return
+
 
 [Debug] test_unit_function: id_mut_pair_test1
 [Debug] 
+**About to evaluate statement**: [
+  x := 0: u32;
+  px := &mut x;
+  var@4 := move px;
+  (p).0 := move var@4;
+  (p).1 := 1: u32;
+  pp0 := &mut p;
+  var@7 := &two-phase *(pp0);
+  pp1 := move id_mut_pair<u32>(move var@7);
+  y := 2: u32;
+  var@10 := &mut y;
+  var@9 := &mut *(var@10);
+  *((pp1).0) := move var@9;
+  *((pp1).1) := 3: u32;
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -15299,22 +17485,15 @@ About to evaluate statement: return
   var@10 -> ⊥ : &'_ mut (u32) ;
 }
 
-About to evaluate statement: x := 0: u32
-px := &mut x
-var@4 := move px
-(p).0 := move var@4
-(p).1 := 1: u32
-pp0 := &mut p
-var@7 := &two-phase *(pp0)
-pp1 := move id_mut_pair<u32>(move var@7)
-y := 2: u32
-var@10 := &mut y
-var@9 := &mut *(var@10)
-*((pp1).0) := move var@9
-*((pp1).1) := 3: u32
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  x := 0: u32
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -15332,10 +17511,11 @@ return
   var@10 -> ⊥ : &'_ mut (u32) ;
 }
 
-About to evaluate statement: x := 0: u32
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -15358,6 +17538,24 @@ About to evaluate statement: x := 0: u32
 0: u32
 
 [Debug] 
+**About to evaluate statement**: [
+  px := &mut x;
+  var@4 := move px;
+  (p).0 := move var@4;
+  (p).1 := 1: u32;
+  pp0 := &mut p;
+  var@7 := &two-phase *(pp0);
+  pp1 := move id_mut_pair<u32>(move var@7);
+  y := 2: u32;
+  var@10 := &mut y;
+  var@9 := &mut *(var@10);
+  *((pp1).0) := move var@9;
+  *((pp1).1) := 3: u32;
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -15375,21 +17573,15 @@ About to evaluate statement: x := 0: u32
   var@10 -> ⊥ : &'_ mut (u32) ;
 }
 
-About to evaluate statement: px := &mut x
-var@4 := move px
-(p).0 := move var@4
-(p).1 := 1: u32
-pp0 := &mut p
-var@7 := &two-phase *(pp0)
-pp1 := move id_mut_pair<u32>(move var@7)
-y := 2: u32
-var@10 := &mut y
-var@9 := &mut *(var@10)
-*((pp1).0) := move var@9
-*((pp1).1) := 3: u32
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  px := &mut x
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -15407,9 +17599,26 @@ return
   var@10 -> ⊥ : &'_ mut (u32) ;
 }
 
-About to evaluate statement: px := &mut x
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@4 := move px;
+  (p).0 := move var@4;
+  (p).1 := 1: u32;
+  pp0 := &mut p;
+  var@7 := &two-phase *(pp0);
+  pp1 := move id_mut_pair<u32>(move var@7);
+  y := 2: u32;
+  var@10 := &mut y;
+  var@9 := &mut *(var@10);
+  *((pp1).0) := move var@9;
+  *((pp1).1) := 3: u32;
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -15427,20 +17636,15 @@ About to evaluate statement: px := &mut x
   var@10 -> ⊥ : &'_ mut (u32) ;
 }
 
-About to evaluate statement: var@4 := move px
-(p).0 := move var@4
-(p).1 := 1: u32
-pp0 := &mut p
-var@7 := &two-phase *(pp0)
-pp1 := move id_mut_pair<u32>(move var@7)
-y := 2: u32
-var@10 := &mut y
-var@9 := &mut *(var@10)
-*((pp1).0) := move var@9
-*((pp1).1) := 3: u32
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@4 := move px
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -15458,10 +17662,11 @@ return
   var@10 -> ⊥ : &'_ mut (u32) ;
 }
 
-About to evaluate statement: var@4 := move px
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -15486,6 +17691,22 @@ move px
 [Debug] Value to move:
 &mut@0 (0: u32)
 [Debug] 
+**About to evaluate statement**: [
+  (p).0 := move var@4;
+  (p).1 := 1: u32;
+  pp0 := &mut p;
+  var@7 := &two-phase *(pp0);
+  pp1 := move id_mut_pair<u32>(move var@7);
+  y := 2: u32;
+  var@10 := &mut y;
+  var@9 := &mut *(var@10);
+  *((pp1).0) := move var@9;
+  *((pp1).1) := 3: u32;
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -15503,19 +17724,15 @@ move px
   var@10 -> ⊥ : &'_ mut (u32) ;
 }
 
-About to evaluate statement: (p).0 := move var@4
-(p).1 := 1: u32
-pp0 := &mut p
-var@7 := &two-phase *(pp0)
-pp1 := move id_mut_pair<u32>(move var@7)
-y := 2: u32
-var@10 := &mut y
-var@9 := &mut *(var@10)
-*((pp1).0) := move var@9
-*((pp1).1) := 3: u32
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  (p).0 := move var@4
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -15533,10 +17750,11 @@ return
   var@10 -> ⊥ : &'_ mut (u32) ;
 }
 
-About to evaluate statement: (p).0 := move var@4
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -15567,6 +17785,21 @@ ty: (Types.Adt (Types.Tuple, [],
      (Types.Integer Types.U32)]
    ))
 [Debug] 
+**About to evaluate statement**: [
+  (p).1 := 1: u32;
+  pp0 := &mut p;
+  var@7 := &two-phase *(pp0);
+  pp1 := move id_mut_pair<u32>(move var@7);
+  y := 2: u32;
+  var@10 := &mut y;
+  var@9 := &mut *(var@10);
+  *((pp1).0) := move var@9;
+  *((pp1).1) := 3: u32;
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -15584,18 +17817,15 @@ ty: (Types.Adt (Types.Tuple, [],
   var@10 -> ⊥ : &'_ mut (u32) ;
 }
 
-About to evaluate statement: (p).1 := 1: u32
-pp0 := &mut p
-var@7 := &two-phase *(pp0)
-pp1 := move id_mut_pair<u32>(move var@7)
-y := 2: u32
-var@10 := &mut y
-var@9 := &mut *(var@10)
-*((pp1).0) := move var@9
-*((pp1).1) := 3: u32
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  (p).1 := 1: u32
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -15613,10 +17843,11 @@ return
   var@10 -> ⊥ : &'_ mut (u32) ;
 }
 
-About to evaluate statement: (p).1 := 1: u32
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -15639,6 +17870,20 @@ About to evaluate statement: (p).1 := 1: u32
 1: u32
 
 [Debug] 
+**About to evaluate statement**: [
+  pp0 := &mut p;
+  var@7 := &two-phase *(pp0);
+  pp1 := move id_mut_pair<u32>(move var@7);
+  y := 2: u32;
+  var@10 := &mut y;
+  var@9 := &mut *(var@10);
+  *((pp1).0) := move var@9;
+  *((pp1).1) := 3: u32;
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -15656,17 +17901,15 @@ About to evaluate statement: (p).1 := 1: u32
   var@10 -> ⊥ : &'_ mut (u32) ;
 }
 
-About to evaluate statement: pp0 := &mut p
-var@7 := &two-phase *(pp0)
-pp1 := move id_mut_pair<u32>(move var@7)
-y := 2: u32
-var@10 := &mut y
-var@9 := &mut *(var@10)
-*((pp1).0) := move var@9
-*((pp1).1) := 3: u32
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  pp0 := &mut p
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -15684,9 +17927,22 @@ return
   var@10 -> ⊥ : &'_ mut (u32) ;
 }
 
-About to evaluate statement: pp0 := &mut p
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@7 := &two-phase *(pp0);
+  pp1 := move id_mut_pair<u32>(move var@7);
+  y := 2: u32;
+  var@10 := &mut y;
+  var@9 := &mut *(var@10);
+  *((pp1).0) := move var@9;
+  *((pp1).1) := 3: u32;
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -15704,16 +17960,15 @@ About to evaluate statement: pp0 := &mut p
   var@10 -> ⊥ : &'_ mut (u32) ;
 }
 
-About to evaluate statement: var@7 := &two-phase *(pp0)
-pp1 := move id_mut_pair<u32>(move var@7)
-y := 2: u32
-var@10 := &mut y
-var@9 := &mut *(var@10)
-*((pp1).0) := move var@9
-*((pp1).1) := 3: u32
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@7 := &two-phase *(pp0)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -15731,9 +17986,21 @@ return
   var@10 -> ⊥ : &'_ mut (u32) ;
 }
 
-About to evaluate statement: var@7 := &two-phase *(pp0)
+
 
 [Debug] 
+**About to evaluate statement**: [
+  pp1 := move id_mut_pair<u32>(move var@7);
+  y := 2: u32;
+  var@10 := &mut y;
+  var@9 := &mut *(var@10);
+  *((pp1).0) := move var@9;
+  *((pp1).1) := 3: u32;
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -15751,15 +18018,15 @@ About to evaluate statement: var@7 := &two-phase *(pp0)
   var@10 -> ⊥ : &'_ mut (u32) ;
 }
 
-About to evaluate statement: pp1 := move id_mut_pair<u32>(move var@7)
-y := 2: u32
-var@10 := &mut y
-var@9 := &mut *(var@10)
-*((pp1).0) := move var@9
-*((pp1).1) := 3: u32
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  pp1 := move id_mut_pair<u32>(move var@7)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -15777,10 +18044,11 @@ return
   var@10 -> ⊥ : &'_ mut (u32) ;
 }
 
-About to evaluate statement: pp1 := move id_mut_pair<u32>(move var@7)
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -15832,6 +18100,14 @@ move var@7
 [Debug] Value to move:
 &mut@2 ((&mut@0 (0: u32), 1: u32))
 [Debug] 
+**About to evaluate statement**: [
+  var@2 := &mut *(x);
+  var@0 := &mut *(var@2);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -15856,11 +18132,15 @@ move var@7
   var@2 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
 }
 
-About to evaluate statement: var@2 := &mut *(x)
-var@0 := &mut *(var@2)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@2 := &mut *(x)
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -15885,9 +18165,16 @@ return
   var@2 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
 }
 
-About to evaluate statement: var@2 := &mut *(x)
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@0 := &mut *(var@2);
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -15912,10 +18199,15 @@ About to evaluate statement: var@2 := &mut *(x)
   var@2 -> &mut@3 ((&mut@0 (0: u32), 1: u32)) ;
 }
 
-About to evaluate statement: var@0 := &mut *(var@2)
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@0 := &mut *(var@2)
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -15940,9 +18232,15 @@ return
   var@2 -> &mut@3 ((&mut@0 (0: u32), 1: u32)) ;
 }
 
-About to evaluate statement: var@0 := &mut *(var@2)
+
 
 [Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -15967,9 +18265,10 @@ About to evaluate statement: var@0 := &mut *(var@2)
   var@2 -> &mut@3 (⌊mut@4⌋) ;
 }
 
-About to evaluate statement: return
+
 
 [Debug] ctx_pop_frame:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -15998,6 +18297,7 @@ About to evaluate statement: return
 [Debug] drop_value: place: var@2
 [Debug] drop_value: place: x
 [Debug] ctx_pop_frame: after dropping local variables:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -16024,6 +18324,7 @@ About to evaluate statement: return
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 2 frame(s)
 
 # Frame 0:
@@ -16055,6 +18356,17 @@ move var@0
 [Debug] Value to move:
 &mut@4 ((&mut@0 (0: u32), 1: u32))
 [Debug] 
+**About to evaluate statement**: [
+  y := 2: u32;
+  var@10 := &mut y;
+  var@9 := &mut *(var@10);
+  *((pp1).0) := move var@9;
+  *((pp1).1) := 3: u32;
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -16072,14 +18384,15 @@ move var@0
   var@10 -> ⊥ : &'_ mut (u32) ;
 }
 
-About to evaluate statement: y := 2: u32
-var@10 := &mut y
-var@9 := &mut *(var@10)
-*((pp1).0) := move var@9
-*((pp1).1) := 3: u32
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  y := 2: u32
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -16097,10 +18410,11 @@ return
   var@10 -> ⊥ : &'_ mut (u32) ;
 }
 
-About to evaluate statement: y := 2: u32
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -16123,6 +18437,16 @@ About to evaluate statement: y := 2: u32
 2: u32
 
 [Debug] 
+**About to evaluate statement**: [
+  var@10 := &mut y;
+  var@9 := &mut *(var@10);
+  *((pp1).0) := move var@9;
+  *((pp1).1) := 3: u32;
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -16140,13 +18464,15 @@ About to evaluate statement: y := 2: u32
   var@10 -> ⊥ : &'_ mut (u32) ;
 }
 
-About to evaluate statement: var@10 := &mut y
-var@9 := &mut *(var@10)
-*((pp1).0) := move var@9
-*((pp1).1) := 3: u32
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@10 := &mut y
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -16164,9 +18490,18 @@ return
   var@10 -> ⊥ : &'_ mut (u32) ;
 }
 
-About to evaluate statement: var@10 := &mut y
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@9 := &mut *(var@10);
+  *((pp1).0) := move var@9;
+  *((pp1).1) := 3: u32;
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -16184,12 +18519,15 @@ About to evaluate statement: var@10 := &mut y
   var@10 -> &mut@5 (2: u32) ;
 }
 
-About to evaluate statement: var@9 := &mut *(var@10)
-*((pp1).0) := move var@9
-*((pp1).1) := 3: u32
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@9 := &mut *(var@10)
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -16207,9 +18545,17 @@ return
   var@10 -> &mut@5 (2: u32) ;
 }
 
-About to evaluate statement: var@9 := &mut *(var@10)
+
 
 [Debug] 
+**About to evaluate statement**: [
+  *((pp1).0) := move var@9;
+  *((pp1).1) := 3: u32;
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -16227,11 +18573,15 @@ About to evaluate statement: var@9 := &mut *(var@10)
   var@10 -> &mut@5 (⌊mut@6⌋) ;
 }
 
-About to evaluate statement: *((pp1).0) := move var@9
-*((pp1).1) := 3: u32
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  *((pp1).0) := move var@9
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -16249,10 +18599,11 @@ return
   var@10 -> &mut@5 (⌊mut@6⌋) ;
 }
 
-About to evaluate statement: *((pp1).0) := move var@9
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -16277,6 +18628,13 @@ move var@9
 [Debug] Value to move:
 &mut@6 (2: u32)
 [Debug] 
+**About to evaluate statement**: [
+  *((pp1).1) := 3: u32;
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -16294,10 +18652,15 @@ move var@9
   var@10 -> &mut@5 (⌊mut@6⌋) ;
 }
 
-About to evaluate statement: *((pp1).1) := 3: u32
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  *((pp1).1) := 3: u32
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -16315,10 +18678,11 @@ return
   var@10 -> &mut@5 (⌊mut@6⌋) ;
 }
 
-About to evaluate statement: *((pp1).1) := 3: u32
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -16341,6 +18705,12 @@ About to evaluate statement: *((pp1).1) := 3: u32
 3: u32
 
 [Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -16358,10 +18728,17 @@ About to evaluate statement: *((pp1).1) := 3: u32
   var@10 -> &mut@5 (⌊mut@6⌋) ;
 }
 
-About to evaluate statement: return
+
 
 [Debug] test_unit_function: test_char
 [Debug] 
+**About to evaluate statement**: [
+  var@0 := a;
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -16369,10 +18746,15 @@ About to evaluate statement: return
   var@0 -> ⊥ : char ;
 }
 
-About to evaluate statement: var@0 := a
-return
+
 
 [Debug] 
+**About to evaluate statement**: [
+  var@0 := a
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -16380,10 +18762,11 @@ return
   var@0 -> ⊥ : char ;
 }
 
-About to evaluate statement: var@0 := a
+
 
 [Debug] eval_operand:
 - ctx:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -16396,6 +18779,12 @@ About to evaluate statement: var@0 := a
 a
 
 [Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {}
 # 1 frame(s)
 
 # Frame 0:
@@ -16403,5 +18792,17276 @@ a
   var@0 -> a ;
 }
 
-About to evaluate statement: return
+
+
+[Debug] test_function_symbolic: add_test
+[Debug] 
+**About to evaluate statement**: [
+  var@3 := copy x;
+  var@4 := copy y;
+  var@0 := copy var@3 + copy var@4;
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> ⊥ : u32 ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : (u32, bool) ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@3 := copy x
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> ⊥ : u32 ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : (u32, bool) ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> ⊥ : u32 ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : (u32, bool) ;
+}
+
+
+- op:
+copy x
+
+[Debug] Value to copy:
+s@0 : u32
+[Debug] 
+**About to evaluate statement**: [
+  var@4 := copy y;
+  var@0 := copy var@3 + copy var@4;
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> s@0 : u32 ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : (u32, bool) ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@4 := copy y
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> s@0 : u32 ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : (u32, bool) ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> s@0 : u32 ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : (u32, bool) ;
+}
+
+
+- op:
+copy y
+
+[Debug] Value to copy:
+s@1 : u32
+[Debug] 
+**About to evaluate statement**: [
+  var@0 := copy var@3 + copy var@4;
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> s@0 : u32 ;
+  var@4 -> s@1 : u32 ;
+  var@5 -> ⊥ : (u32, bool) ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@0 := copy var@3 + copy var@4
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> s@0 : u32 ;
+  var@4 -> s@1 : u32 ;
+  var@5 -> ⊥ : (u32, bool) ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> s@0 : u32 ;
+  var@4 -> s@1 : u32 ;
+  var@5 -> ⊥ : (u32, bool) ;
+}
+
+
+- op:
+copy var@3
+
+[Debug] Value to copy:
+s@0 : u32
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> s@0 : u32 ;
+  var@4 -> s@1 : u32 ;
+  var@5 -> ⊥ : (u32, bool) ;
+}
+
+
+- op:
+copy var@4
+
+[Debug] Value to copy:
+s@1 : u32
+[Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> s@2 : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> s@0 : u32 ;
+  var@4 -> s@1 : u32 ;
+  var@5 -> ⊥ : (u32, bool) ;
+}
+
+
+
+[Debug] test_function_symbolic: subs_test
+[Debug] 
+**About to evaluate statement**: [
+  var@3 := copy x;
+  var@4 := copy y;
+  var@0 := copy var@3 - copy var@4;
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> ⊥ : u32 ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : (u32, bool) ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@3 := copy x
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> ⊥ : u32 ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : (u32, bool) ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> ⊥ : u32 ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : (u32, bool) ;
+}
+
+
+- op:
+copy x
+
+[Debug] Value to copy:
+s@0 : u32
+[Debug] 
+**About to evaluate statement**: [
+  var@4 := copy y;
+  var@0 := copy var@3 - copy var@4;
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> s@0 : u32 ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : (u32, bool) ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@4 := copy y
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> s@0 : u32 ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : (u32, bool) ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> s@0 : u32 ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : (u32, bool) ;
+}
+
+
+- op:
+copy y
+
+[Debug] Value to copy:
+s@1 : u32
+[Debug] 
+**About to evaluate statement**: [
+  var@0 := copy var@3 - copy var@4;
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> s@0 : u32 ;
+  var@4 -> s@1 : u32 ;
+  var@5 -> ⊥ : (u32, bool) ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@0 := copy var@3 - copy var@4
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> s@0 : u32 ;
+  var@4 -> s@1 : u32 ;
+  var@5 -> ⊥ : (u32, bool) ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> s@0 : u32 ;
+  var@4 -> s@1 : u32 ;
+  var@5 -> ⊥ : (u32, bool) ;
+}
+
+
+- op:
+copy var@3
+
+[Debug] Value to copy:
+s@0 : u32
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> s@0 : u32 ;
+  var@4 -> s@1 : u32 ;
+  var@5 -> ⊥ : (u32, bool) ;
+}
+
+
+- op:
+copy var@4
+
+[Debug] Value to copy:
+s@1 : u32
+[Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> s@2 : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> s@0 : u32 ;
+  var@4 -> s@1 : u32 ;
+  var@5 -> ⊥ : (u32, bool) ;
+}
+
+
+
+[Debug] test_function_symbolic: div_test
+[Debug] 
+**About to evaluate statement**: [
+  var@3 := copy x;
+  var@4 := copy y;
+  var@0 := move var@3 / move var@4;
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> ⊥ : u32 ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : bool ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@3 := copy x
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> ⊥ : u32 ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : bool ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> ⊥ : u32 ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : bool ;
+}
+
+
+- op:
+copy x
+
+[Debug] Value to copy:
+s@0 : u32
+[Debug] 
+**About to evaluate statement**: [
+  var@4 := copy y;
+  var@0 := move var@3 / move var@4;
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> s@0 : u32 ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : bool ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@4 := copy y
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> s@0 : u32 ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : bool ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> s@0 : u32 ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : bool ;
+}
+
+
+- op:
+copy y
+
+[Debug] Value to copy:
+s@1 : u32
+[Debug] 
+**About to evaluate statement**: [
+  var@0 := move var@3 / move var@4;
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> s@0 : u32 ;
+  var@4 -> s@1 : u32 ;
+  var@5 -> ⊥ : bool ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@0 := move var@3 / move var@4
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> s@0 : u32 ;
+  var@4 -> s@1 : u32 ;
+  var@5 -> ⊥ : bool ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> s@0 : u32 ;
+  var@4 -> s@1 : u32 ;
+  var@5 -> ⊥ : bool ;
+}
+
+
+- op:
+move var@3
+
+[Debug] Value to move:
+s@0 : u32
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> ⊥ : u32 ;
+  var@4 -> s@1 : u32 ;
+  var@5 -> ⊥ : bool ;
+}
+
+
+- op:
+move var@4
+
+[Debug] Value to move:
+s@1 : u32
+[Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> s@2 : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> ⊥ : u32 ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : bool ;
+}
+
+
+
+[Debug] test_function_symbolic: rem_test
+[Debug] 
+**About to evaluate statement**: [
+  var@3 := copy x;
+  var@4 := copy y;
+  var@0 := move var@3 % move var@4;
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> ⊥ : u32 ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : bool ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@3 := copy x
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> ⊥ : u32 ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : bool ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> ⊥ : u32 ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : bool ;
+}
+
+
+- op:
+copy x
+
+[Debug] Value to copy:
+s@0 : u32
+[Debug] 
+**About to evaluate statement**: [
+  var@4 := copy y;
+  var@0 := move var@3 % move var@4;
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> s@0 : u32 ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : bool ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@4 := copy y
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> s@0 : u32 ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : bool ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> s@0 : u32 ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : bool ;
+}
+
+
+- op:
+copy y
+
+[Debug] Value to copy:
+s@1 : u32
+[Debug] 
+**About to evaluate statement**: [
+  var@0 := move var@3 % move var@4;
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> s@0 : u32 ;
+  var@4 -> s@1 : u32 ;
+  var@5 -> ⊥ : bool ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@0 := move var@3 % move var@4
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> s@0 : u32 ;
+  var@4 -> s@1 : u32 ;
+  var@5 -> ⊥ : bool ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> s@0 : u32 ;
+  var@4 -> s@1 : u32 ;
+  var@5 -> ⊥ : bool ;
+}
+
+
+- op:
+move var@3
+
+[Debug] Value to move:
+s@0 : u32
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> ⊥ : u32 ;
+  var@4 -> s@1 : u32 ;
+  var@5 -> ⊥ : bool ;
+}
+
+
+- op:
+move var@4
+
+[Debug] Value to move:
+s@1 : u32
+[Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> s@2 : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> ⊥ : u32 ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : bool ;
+}
+
+
+
+[Debug] test_function_symbolic: test2
+[Debug] 
+**About to evaluate statement**: [
+  x := 23: u32;
+  y := 44: u32;
+  z := 67: u32;
+  var@5 := copy x;
+  (p).x := move var@5;
+  (p).y := 67: u32;
+  (s as test1::Sum::Right).0 := true;
+  set_discriminant(s, 1);
+  (o as test1::One::One).0 := 3: u64;
+  set_discriminant(o, 0);
+  set_discriminant(e0, 0);
+  set_discriminant(enum0, 0);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⊥ : u32 ;
+  y -> ⊥ : u32 ;
+  z -> ⊥ : u32 ;
+  p -> ⊥ : test1::Pair<u32, u32> ;
+  var@5 -> ⊥ : u32 ;
+  s -> ⊥ : test1::Sum<u32, bool> ;
+  o -> ⊥ : test1::One<u64> ;
+  e0 -> ⊥ : test1::EmptyEnum ;
+  e1 -> ⊥ : test1::EmptyEnum ;
+  enum0 -> ⊥ : test1::Enum ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  x := 23: u32
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⊥ : u32 ;
+  y -> ⊥ : u32 ;
+  z -> ⊥ : u32 ;
+  p -> ⊥ : test1::Pair<u32, u32> ;
+  var@5 -> ⊥ : u32 ;
+  s -> ⊥ : test1::Sum<u32, bool> ;
+  o -> ⊥ : test1::One<u64> ;
+  e0 -> ⊥ : test1::EmptyEnum ;
+  e1 -> ⊥ : test1::EmptyEnum ;
+  enum0 -> ⊥ : test1::Enum ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⊥ : u32 ;
+  y -> ⊥ : u32 ;
+  z -> ⊥ : u32 ;
+  p -> ⊥ : test1::Pair<u32, u32> ;
+  var@5 -> ⊥ : u32 ;
+  s -> ⊥ : test1::Sum<u32, bool> ;
+  o -> ⊥ : test1::One<u64> ;
+  e0 -> ⊥ : test1::EmptyEnum ;
+  e1 -> ⊥ : test1::EmptyEnum ;
+  enum0 -> ⊥ : test1::Enum ;
+}
+
+
+- op:
+23: u32
+
+[Debug] 
+**About to evaluate statement**: [
+  y := 44: u32;
+  z := 67: u32;
+  var@5 := copy x;
+  (p).x := move var@5;
+  (p).y := 67: u32;
+  (s as test1::Sum::Right).0 := true;
+  set_discriminant(s, 1);
+  (o as test1::One::One).0 := 3: u64;
+  set_discriminant(o, 0);
+  set_discriminant(e0, 0);
+  set_discriminant(enum0, 0);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 23: u32 ;
+  y -> ⊥ : u32 ;
+  z -> ⊥ : u32 ;
+  p -> ⊥ : test1::Pair<u32, u32> ;
+  var@5 -> ⊥ : u32 ;
+  s -> ⊥ : test1::Sum<u32, bool> ;
+  o -> ⊥ : test1::One<u64> ;
+  e0 -> ⊥ : test1::EmptyEnum ;
+  e1 -> ⊥ : test1::EmptyEnum ;
+  enum0 -> ⊥ : test1::Enum ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  y := 44: u32
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 23: u32 ;
+  y -> ⊥ : u32 ;
+  z -> ⊥ : u32 ;
+  p -> ⊥ : test1::Pair<u32, u32> ;
+  var@5 -> ⊥ : u32 ;
+  s -> ⊥ : test1::Sum<u32, bool> ;
+  o -> ⊥ : test1::One<u64> ;
+  e0 -> ⊥ : test1::EmptyEnum ;
+  e1 -> ⊥ : test1::EmptyEnum ;
+  enum0 -> ⊥ : test1::Enum ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 23: u32 ;
+  y -> ⊥ : u32 ;
+  z -> ⊥ : u32 ;
+  p -> ⊥ : test1::Pair<u32, u32> ;
+  var@5 -> ⊥ : u32 ;
+  s -> ⊥ : test1::Sum<u32, bool> ;
+  o -> ⊥ : test1::One<u64> ;
+  e0 -> ⊥ : test1::EmptyEnum ;
+  e1 -> ⊥ : test1::EmptyEnum ;
+  enum0 -> ⊥ : test1::Enum ;
+}
+
+
+- op:
+44: u32
+
+[Debug] 
+**About to evaluate statement**: [
+  z := 67: u32;
+  var@5 := copy x;
+  (p).x := move var@5;
+  (p).y := 67: u32;
+  (s as test1::Sum::Right).0 := true;
+  set_discriminant(s, 1);
+  (o as test1::One::One).0 := 3: u64;
+  set_discriminant(o, 0);
+  set_discriminant(e0, 0);
+  set_discriminant(enum0, 0);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 23: u32 ;
+  y -> 44: u32 ;
+  z -> ⊥ : u32 ;
+  p -> ⊥ : test1::Pair<u32, u32> ;
+  var@5 -> ⊥ : u32 ;
+  s -> ⊥ : test1::Sum<u32, bool> ;
+  o -> ⊥ : test1::One<u64> ;
+  e0 -> ⊥ : test1::EmptyEnum ;
+  e1 -> ⊥ : test1::EmptyEnum ;
+  enum0 -> ⊥ : test1::Enum ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  z := 67: u32
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 23: u32 ;
+  y -> 44: u32 ;
+  z -> ⊥ : u32 ;
+  p -> ⊥ : test1::Pair<u32, u32> ;
+  var@5 -> ⊥ : u32 ;
+  s -> ⊥ : test1::Sum<u32, bool> ;
+  o -> ⊥ : test1::One<u64> ;
+  e0 -> ⊥ : test1::EmptyEnum ;
+  e1 -> ⊥ : test1::EmptyEnum ;
+  enum0 -> ⊥ : test1::Enum ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 23: u32 ;
+  y -> 44: u32 ;
+  z -> ⊥ : u32 ;
+  p -> ⊥ : test1::Pair<u32, u32> ;
+  var@5 -> ⊥ : u32 ;
+  s -> ⊥ : test1::Sum<u32, bool> ;
+  o -> ⊥ : test1::One<u64> ;
+  e0 -> ⊥ : test1::EmptyEnum ;
+  e1 -> ⊥ : test1::EmptyEnum ;
+  enum0 -> ⊥ : test1::Enum ;
+}
+
+
+- op:
+67: u32
+
+[Debug] 
+**About to evaluate statement**: [
+  var@5 := copy x;
+  (p).x := move var@5;
+  (p).y := 67: u32;
+  (s as test1::Sum::Right).0 := true;
+  set_discriminant(s, 1);
+  (o as test1::One::One).0 := 3: u64;
+  set_discriminant(o, 0);
+  set_discriminant(e0, 0);
+  set_discriminant(enum0, 0);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 23: u32 ;
+  y -> 44: u32 ;
+  z -> 67: u32 ;
+  p -> ⊥ : test1::Pair<u32, u32> ;
+  var@5 -> ⊥ : u32 ;
+  s -> ⊥ : test1::Sum<u32, bool> ;
+  o -> ⊥ : test1::One<u64> ;
+  e0 -> ⊥ : test1::EmptyEnum ;
+  e1 -> ⊥ : test1::EmptyEnum ;
+  enum0 -> ⊥ : test1::Enum ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@5 := copy x
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 23: u32 ;
+  y -> 44: u32 ;
+  z -> 67: u32 ;
+  p -> ⊥ : test1::Pair<u32, u32> ;
+  var@5 -> ⊥ : u32 ;
+  s -> ⊥ : test1::Sum<u32, bool> ;
+  o -> ⊥ : test1::One<u64> ;
+  e0 -> ⊥ : test1::EmptyEnum ;
+  e1 -> ⊥ : test1::EmptyEnum ;
+  enum0 -> ⊥ : test1::Enum ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 23: u32 ;
+  y -> 44: u32 ;
+  z -> 67: u32 ;
+  p -> ⊥ : test1::Pair<u32, u32> ;
+  var@5 -> ⊥ : u32 ;
+  s -> ⊥ : test1::Sum<u32, bool> ;
+  o -> ⊥ : test1::One<u64> ;
+  e0 -> ⊥ : test1::EmptyEnum ;
+  e1 -> ⊥ : test1::EmptyEnum ;
+  enum0 -> ⊥ : test1::Enum ;
+}
+
+
+- op:
+copy x
+
+[Debug] Value to copy:
+23: u32
+[Debug] 
+**About to evaluate statement**: [
+  (p).x := move var@5;
+  (p).y := 67: u32;
+  (s as test1::Sum::Right).0 := true;
+  set_discriminant(s, 1);
+  (o as test1::One::One).0 := 3: u64;
+  set_discriminant(o, 0);
+  set_discriminant(e0, 0);
+  set_discriminant(enum0, 0);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 23: u32 ;
+  y -> 44: u32 ;
+  z -> 67: u32 ;
+  p -> ⊥ : test1::Pair<u32, u32> ;
+  var@5 -> 23: u32 ;
+  s -> ⊥ : test1::Sum<u32, bool> ;
+  o -> ⊥ : test1::One<u64> ;
+  e0 -> ⊥ : test1::EmptyEnum ;
+  e1 -> ⊥ : test1::EmptyEnum ;
+  enum0 -> ⊥ : test1::Enum ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  (p).x := move var@5
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 23: u32 ;
+  y -> 44: u32 ;
+  z -> 67: u32 ;
+  p -> ⊥ : test1::Pair<u32, u32> ;
+  var@5 -> 23: u32 ;
+  s -> ⊥ : test1::Sum<u32, bool> ;
+  o -> ⊥ : test1::One<u64> ;
+  e0 -> ⊥ : test1::EmptyEnum ;
+  e1 -> ⊥ : test1::EmptyEnum ;
+  enum0 -> ⊥ : test1::Enum ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 23: u32 ;
+  y -> 44: u32 ;
+  z -> 67: u32 ;
+  p -> ⊥ : test1::Pair<u32, u32> ;
+  var@5 -> 23: u32 ;
+  s -> ⊥ : test1::Sum<u32, bool> ;
+  o -> ⊥ : test1::One<u64> ;
+  e0 -> ⊥ : test1::EmptyEnum ;
+  e1 -> ⊥ : test1::EmptyEnum ;
+  enum0 -> ⊥ : test1::Enum ;
+}
+
+
+- op:
+move var@5
+
+[Debug] Value to move:
+23: u32
+[Debug] expand_bottom_value_from_projection:
+pe: (Expressions.Field ((Expressions.ProjAdt (0, None)), 0))
+ty: (Types.Adt ((Types.AdtId 0), [],
+   [(Types.Integer Types.U32); (Types.Integer Types.U32)]))
+[Debug] 
+**About to evaluate statement**: [
+  (p).y := 67: u32;
+  (s as test1::Sum::Right).0 := true;
+  set_discriminant(s, 1);
+  (o as test1::One::One).0 := 3: u64;
+  set_discriminant(o, 0);
+  set_discriminant(e0, 0);
+  set_discriminant(enum0, 0);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 23: u32 ;
+  y -> 44: u32 ;
+  z -> 67: u32 ;
+  p -> test1::Pair { x = 23: u32; y = ⊥ : u32; } ;
+  var@5 -> ⊥ : u32 ;
+  s -> ⊥ : test1::Sum<u32, bool> ;
+  o -> ⊥ : test1::One<u64> ;
+  e0 -> ⊥ : test1::EmptyEnum ;
+  e1 -> ⊥ : test1::EmptyEnum ;
+  enum0 -> ⊥ : test1::Enum ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  (p).y := 67: u32
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 23: u32 ;
+  y -> 44: u32 ;
+  z -> 67: u32 ;
+  p -> test1::Pair { x = 23: u32; y = ⊥ : u32; } ;
+  var@5 -> ⊥ : u32 ;
+  s -> ⊥ : test1::Sum<u32, bool> ;
+  o -> ⊥ : test1::One<u64> ;
+  e0 -> ⊥ : test1::EmptyEnum ;
+  e1 -> ⊥ : test1::EmptyEnum ;
+  enum0 -> ⊥ : test1::Enum ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 23: u32 ;
+  y -> 44: u32 ;
+  z -> 67: u32 ;
+  p -> test1::Pair { x = 23: u32; y = ⊥ : u32; } ;
+  var@5 -> ⊥ : u32 ;
+  s -> ⊥ : test1::Sum<u32, bool> ;
+  o -> ⊥ : test1::One<u64> ;
+  e0 -> ⊥ : test1::EmptyEnum ;
+  e1 -> ⊥ : test1::EmptyEnum ;
+  enum0 -> ⊥ : test1::Enum ;
+}
+
+
+- op:
+67: u32
+
+[Debug] 
+**About to evaluate statement**: [
+  (s as test1::Sum::Right).0 := true;
+  set_discriminant(s, 1);
+  (o as test1::One::One).0 := 3: u64;
+  set_discriminant(o, 0);
+  set_discriminant(e0, 0);
+  set_discriminant(enum0, 0);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 23: u32 ;
+  y -> 44: u32 ;
+  z -> 67: u32 ;
+  p -> test1::Pair { x = 23: u32; y = 67: u32; } ;
+  var@5 -> ⊥ : u32 ;
+  s -> ⊥ : test1::Sum<u32, bool> ;
+  o -> ⊥ : test1::One<u64> ;
+  e0 -> ⊥ : test1::EmptyEnum ;
+  e1 -> ⊥ : test1::EmptyEnum ;
+  enum0 -> ⊥ : test1::Enum ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  (s as test1::Sum::Right).0 := true
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 23: u32 ;
+  y -> 44: u32 ;
+  z -> 67: u32 ;
+  p -> test1::Pair { x = 23: u32; y = 67: u32; } ;
+  var@5 -> ⊥ : u32 ;
+  s -> ⊥ : test1::Sum<u32, bool> ;
+  o -> ⊥ : test1::One<u64> ;
+  e0 -> ⊥ : test1::EmptyEnum ;
+  e1 -> ⊥ : test1::EmptyEnum ;
+  enum0 -> ⊥ : test1::Enum ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 23: u32 ;
+  y -> 44: u32 ;
+  z -> 67: u32 ;
+  p -> test1::Pair { x = 23: u32; y = 67: u32; } ;
+  var@5 -> ⊥ : u32 ;
+  s -> ⊥ : test1::Sum<u32, bool> ;
+  o -> ⊥ : test1::One<u64> ;
+  e0 -> ⊥ : test1::EmptyEnum ;
+  e1 -> ⊥ : test1::EmptyEnum ;
+  enum0 -> ⊥ : test1::Enum ;
+}
+
+
+- op:
+true
+
+[Debug] expand_bottom_value_from_projection:
+pe: (Expressions.Field ((Expressions.ProjAdt (6, (Some 1))), 0))
+ty: (Types.Adt ((Types.AdtId 6), [], [(Types.Integer Types.U32); Types.Bool]))
+[Debug] 
+**About to evaluate statement**: [
+  set_discriminant(s, 1);
+  (o as test1::One::One).0 := 3: u64;
+  set_discriminant(o, 0);
+  set_discriminant(e0, 0);
+  set_discriminant(enum0, 0);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 23: u32 ;
+  y -> 44: u32 ;
+  z -> 67: u32 ;
+  p -> test1::Pair { x = 23: u32; y = 67: u32; } ;
+  var@5 -> ⊥ : u32 ;
+  s -> test1::Sum::Right { 0 = true; } ;
+  o -> ⊥ : test1::One<u64> ;
+  e0 -> ⊥ : test1::EmptyEnum ;
+  e1 -> ⊥ : test1::EmptyEnum ;
+  enum0 -> ⊥ : test1::Enum ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  set_discriminant(s, 1)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 23: u32 ;
+  y -> 44: u32 ;
+  z -> 67: u32 ;
+  p -> test1::Pair { x = 23: u32; y = 67: u32; } ;
+  var@5 -> ⊥ : u32 ;
+  s -> test1::Sum::Right { 0 = true; } ;
+  o -> ⊥ : test1::One<u64> ;
+  e0 -> ⊥ : test1::EmptyEnum ;
+  e1 -> ⊥ : test1::EmptyEnum ;
+  enum0 -> ⊥ : test1::Enum ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  (o as test1::One::One).0 := 3: u64;
+  set_discriminant(o, 0);
+  set_discriminant(e0, 0);
+  set_discriminant(enum0, 0);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 23: u32 ;
+  y -> 44: u32 ;
+  z -> 67: u32 ;
+  p -> test1::Pair { x = 23: u32; y = 67: u32; } ;
+  var@5 -> ⊥ : u32 ;
+  s -> test1::Sum::Right { 0 = true; } ;
+  o -> ⊥ : test1::One<u64> ;
+  e0 -> ⊥ : test1::EmptyEnum ;
+  e1 -> ⊥ : test1::EmptyEnum ;
+  enum0 -> ⊥ : test1::Enum ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  (o as test1::One::One).0 := 3: u64
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 23: u32 ;
+  y -> 44: u32 ;
+  z -> 67: u32 ;
+  p -> test1::Pair { x = 23: u32; y = 67: u32; } ;
+  var@5 -> ⊥ : u32 ;
+  s -> test1::Sum::Right { 0 = true; } ;
+  o -> ⊥ : test1::One<u64> ;
+  e0 -> ⊥ : test1::EmptyEnum ;
+  e1 -> ⊥ : test1::EmptyEnum ;
+  enum0 -> ⊥ : test1::Enum ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 23: u32 ;
+  y -> 44: u32 ;
+  z -> 67: u32 ;
+  p -> test1::Pair { x = 23: u32; y = 67: u32; } ;
+  var@5 -> ⊥ : u32 ;
+  s -> test1::Sum::Right { 0 = true; } ;
+  o -> ⊥ : test1::One<u64> ;
+  e0 -> ⊥ : test1::EmptyEnum ;
+  e1 -> ⊥ : test1::EmptyEnum ;
+  enum0 -> ⊥ : test1::Enum ;
+}
+
+
+- op:
+3: u64
+
+[Debug] expand_bottom_value_from_projection:
+pe: (Expressions.Field ((Expressions.ProjAdt (2, (Some 0))), 0))
+ty: (Types.Adt ((Types.AdtId 2), [], [(Types.Integer Types.U64)]))
+[Debug] 
+**About to evaluate statement**: [
+  set_discriminant(o, 0);
+  set_discriminant(e0, 0);
+  set_discriminant(enum0, 0);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 23: u32 ;
+  y -> 44: u32 ;
+  z -> 67: u32 ;
+  p -> test1::Pair { x = 23: u32; y = 67: u32; } ;
+  var@5 -> ⊥ : u32 ;
+  s -> test1::Sum::Right { 0 = true; } ;
+  o -> test1::One::One { 0 = 3: u64; } ;
+  e0 -> ⊥ : test1::EmptyEnum ;
+  e1 -> ⊥ : test1::EmptyEnum ;
+  enum0 -> ⊥ : test1::Enum ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  set_discriminant(o, 0)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 23: u32 ;
+  y -> 44: u32 ;
+  z -> 67: u32 ;
+  p -> test1::Pair { x = 23: u32; y = 67: u32; } ;
+  var@5 -> ⊥ : u32 ;
+  s -> test1::Sum::Right { 0 = true; } ;
+  o -> test1::One::One { 0 = 3: u64; } ;
+  e0 -> ⊥ : test1::EmptyEnum ;
+  e1 -> ⊥ : test1::EmptyEnum ;
+  enum0 -> ⊥ : test1::Enum ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  set_discriminant(e0, 0);
+  set_discriminant(enum0, 0);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 23: u32 ;
+  y -> 44: u32 ;
+  z -> 67: u32 ;
+  p -> test1::Pair { x = 23: u32; y = 67: u32; } ;
+  var@5 -> ⊥ : u32 ;
+  s -> test1::Sum::Right { 0 = true; } ;
+  o -> test1::One::One { 0 = 3: u64; } ;
+  e0 -> ⊥ : test1::EmptyEnum ;
+  e1 -> ⊥ : test1::EmptyEnum ;
+  enum0 -> ⊥ : test1::Enum ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  set_discriminant(e0, 0)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 23: u32 ;
+  y -> 44: u32 ;
+  z -> 67: u32 ;
+  p -> test1::Pair { x = 23: u32; y = 67: u32; } ;
+  var@5 -> ⊥ : u32 ;
+  s -> test1::Sum::Right { 0 = true; } ;
+  o -> test1::One::One { 0 = 3: u64; } ;
+  e0 -> ⊥ : test1::EmptyEnum ;
+  e1 -> ⊥ : test1::EmptyEnum ;
+  enum0 -> ⊥ : test1::Enum ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  set_discriminant(enum0, 0);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 23: u32 ;
+  y -> 44: u32 ;
+  z -> 67: u32 ;
+  p -> test1::Pair { x = 23: u32; y = 67: u32; } ;
+  var@5 -> ⊥ : u32 ;
+  s -> test1::Sum::Right { 0 = true; } ;
+  o -> test1::One::One { 0 = 3: u64; } ;
+  e0 -> test1::EmptyEnum::Empty ;
+  e1 -> ⊥ : test1::EmptyEnum ;
+  enum0 -> ⊥ : test1::Enum ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  set_discriminant(enum0, 0)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 23: u32 ;
+  y -> 44: u32 ;
+  z -> 67: u32 ;
+  p -> test1::Pair { x = 23: u32; y = 67: u32; } ;
+  var@5 -> ⊥ : u32 ;
+  s -> test1::Sum::Right { 0 = true; } ;
+  o -> test1::One::One { 0 = 3: u64; } ;
+  e0 -> test1::EmptyEnum::Empty ;
+  e1 -> ⊥ : test1::EmptyEnum ;
+  enum0 -> ⊥ : test1::Enum ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 23: u32 ;
+  y -> 44: u32 ;
+  z -> 67: u32 ;
+  p -> test1::Pair { x = 23: u32; y = 67: u32; } ;
+  var@5 -> ⊥ : u32 ;
+  s -> test1::Sum::Right { 0 = true; } ;
+  o -> test1::One::One { 0 = 3: u64; } ;
+  e0 -> test1::EmptyEnum::Empty ;
+  e1 -> ⊥ : test1::EmptyEnum ;
+  enum0 -> test1::Enum::Variant1 ;
+}
+
+
+
+[Debug] test_function_symbolic: get_max
+[Debug] 
+**About to evaluate statement**: [
+  var@4 := copy x;
+  var@5 := copy y;
+  var@3 := move var@4 >= move var@5;
+  if (move var@3) {
+    var@0 := copy x
+  }
+  else {
+    var@0 := copy y
+  };
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> ⊥ : bool ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : u32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@4 := copy x
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> ⊥ : bool ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : u32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> ⊥ : bool ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : u32 ;
+}
+
+
+- op:
+copy x
+
+[Debug] Value to copy:
+s@0 : u32
+[Debug] 
+**About to evaluate statement**: [
+  var@5 := copy y;
+  var@3 := move var@4 >= move var@5;
+  if (move var@3) {
+    var@0 := copy x
+  }
+  else {
+    var@0 := copy y
+  };
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> ⊥ : bool ;
+  var@4 -> s@0 : u32 ;
+  var@5 -> ⊥ : u32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@5 := copy y
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> ⊥ : bool ;
+  var@4 -> s@0 : u32 ;
+  var@5 -> ⊥ : u32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> ⊥ : bool ;
+  var@4 -> s@0 : u32 ;
+  var@5 -> ⊥ : u32 ;
+}
+
+
+- op:
+copy y
+
+[Debug] Value to copy:
+s@1 : u32
+[Debug] 
+**About to evaluate statement**: [
+  var@3 := move var@4 >= move var@5;
+  if (move var@3) {
+    var@0 := copy x
+  }
+  else {
+    var@0 := copy y
+  };
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> ⊥ : bool ;
+  var@4 -> s@0 : u32 ;
+  var@5 -> s@1 : u32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@3 := move var@4 >= move var@5
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> ⊥ : bool ;
+  var@4 -> s@0 : u32 ;
+  var@5 -> s@1 : u32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> ⊥ : bool ;
+  var@4 -> s@0 : u32 ;
+  var@5 -> s@1 : u32 ;
+}
+
+
+- op:
+move var@4
+
+[Debug] Value to move:
+s@0 : u32
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> ⊥ : bool ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> s@1 : u32 ;
+}
+
+
+- op:
+move var@5
+
+[Debug] Value to move:
+s@1 : u32
+[Debug] 
+**About to evaluate statement**: [
+  if (move var@3) {
+    var@0 := copy x
+  }
+  else {
+    var@0 := copy y
+  };
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> s@2 : bool ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : u32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  if (move var@3) {
+    var@0 := copy x
+  }
+  else {
+    var@0 := copy y
+  }
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> s@2 : bool ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : u32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> true ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : u32 ;
+}
+
+
+- op:
+move var@3
+
+[Debug] Value to move:
+true
+[Debug] 
+**About to evaluate statement**: [
+  var@0 := copy x
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> ⊥ : bool ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : u32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> ⊥ : bool ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : u32 ;
+}
+
+
+- op:
+copy x
+
+[Debug] Value to copy:
+s@0 : u32
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> false ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : u32 ;
+}
+
+
+- op:
+move var@3
+
+[Debug] Value to move:
+false
+[Debug] 
+**About to evaluate statement**: [
+  var@0 := copy y
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> ⊥ : bool ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : u32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> ⊥ : bool ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : u32 ;
+}
+
+
+- op:
+copy y
+
+[Debug] Value to copy:
+s@1 : u32
+[Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> s@0 : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> ⊥ : bool ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : u32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> s@1 : u32 ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  var@3 -> ⊥ : bool ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : u32 ;
+}
+
+
+
+[Debug] test_function_symbolic: test3
+[Debug] 
+**About to evaluate statement**: [
+  x := move get_max(4: u32, 3: u32);
+  y := move get_max(10: u32, 11: u32);
+  var@4 := copy x;
+  var@5 := copy y;
+  z := copy var@4 + copy var@5;
+  var@9 := copy z;
+  var@8 := move var@9 == 15: u32;
+  var@7 := ¬ move var@8;
+  assert(¬move var@7);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⊥ : u32 ;
+  y -> ⊥ : u32 ;
+  z -> ⊥ : u32 ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : u32 ;
+  var@6 -> ⊥ : (u32, bool) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : u32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  x := move get_max(4: u32, 3: u32)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⊥ : u32 ;
+  y -> ⊥ : u32 ;
+  z -> ⊥ : u32 ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : u32 ;
+  var@6 -> ⊥ : (u32, bool) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : u32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⊥ : u32 ;
+  y -> ⊥ : u32 ;
+  z -> ⊥ : u32 ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : u32 ;
+  var@6 -> ⊥ : (u32, bool) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : u32 ;
+}
+
+
+- op:
+4: u32
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⊥ : u32 ;
+  y -> ⊥ : u32 ;
+  z -> ⊥ : u32 ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : u32 ;
+  var@6 -> ⊥ : (u32, bool) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : u32 ;
+}
+
+
+- op:
+3: u32
+
+[Debug] 
+**About to evaluate statement**: [
+  y := move get_max(10: u32, 11: u32);
+  var@4 := copy x;
+  var@5 := copy y;
+  z := copy var@4 + copy var@5;
+  var@9 := copy z;
+  var@8 := move var@9 == 15: u32;
+  var@7 := ¬ move var@8;
+  assert(¬move var@7);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@0 : u32 ;
+  y -> ⊥ : u32 ;
+  z -> ⊥ : u32 ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : u32 ;
+  var@6 -> ⊥ : (u32, bool) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : u32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  y := move get_max(10: u32, 11: u32)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@0 : u32 ;
+  y -> ⊥ : u32 ;
+  z -> ⊥ : u32 ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : u32 ;
+  var@6 -> ⊥ : (u32, bool) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : u32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@0 : u32 ;
+  y -> ⊥ : u32 ;
+  z -> ⊥ : u32 ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : u32 ;
+  var@6 -> ⊥ : (u32, bool) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : u32 ;
+}
+
+
+- op:
+10: u32
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@0 : u32 ;
+  y -> ⊥ : u32 ;
+  z -> ⊥ : u32 ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : u32 ;
+  var@6 -> ⊥ : (u32, bool) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : u32 ;
+}
+
+
+- op:
+11: u32
+
+[Debug] 
+**About to evaluate statement**: [
+  var@4 := copy x;
+  var@5 := copy y;
+  z := copy var@4 + copy var@5;
+  var@9 := copy z;
+  var@8 := move var@9 == 15: u32;
+  var@7 := ¬ move var@8;
+  assert(¬move var@7);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  z -> ⊥ : u32 ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : u32 ;
+  var@6 -> ⊥ : (u32, bool) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : u32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@4 := copy x
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  z -> ⊥ : u32 ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : u32 ;
+  var@6 -> ⊥ : (u32, bool) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : u32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  z -> ⊥ : u32 ;
+  var@4 -> ⊥ : u32 ;
+  var@5 -> ⊥ : u32 ;
+  var@6 -> ⊥ : (u32, bool) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : u32 ;
+}
+
+
+- op:
+copy x
+
+[Debug] Value to copy:
+s@0 : u32
+[Debug] 
+**About to evaluate statement**: [
+  var@5 := copy y;
+  z := copy var@4 + copy var@5;
+  var@9 := copy z;
+  var@8 := move var@9 == 15: u32;
+  var@7 := ¬ move var@8;
+  assert(¬move var@7);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  z -> ⊥ : u32 ;
+  var@4 -> s@0 : u32 ;
+  var@5 -> ⊥ : u32 ;
+  var@6 -> ⊥ : (u32, bool) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : u32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@5 := copy y
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  z -> ⊥ : u32 ;
+  var@4 -> s@0 : u32 ;
+  var@5 -> ⊥ : u32 ;
+  var@6 -> ⊥ : (u32, bool) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : u32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  z -> ⊥ : u32 ;
+  var@4 -> s@0 : u32 ;
+  var@5 -> ⊥ : u32 ;
+  var@6 -> ⊥ : (u32, bool) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : u32 ;
+}
+
+
+- op:
+copy y
+
+[Debug] Value to copy:
+s@1 : u32
+[Debug] 
+**About to evaluate statement**: [
+  z := copy var@4 + copy var@5;
+  var@9 := copy z;
+  var@8 := move var@9 == 15: u32;
+  var@7 := ¬ move var@8;
+  assert(¬move var@7);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  z -> ⊥ : u32 ;
+  var@4 -> s@0 : u32 ;
+  var@5 -> s@1 : u32 ;
+  var@6 -> ⊥ : (u32, bool) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : u32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  z := copy var@4 + copy var@5
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  z -> ⊥ : u32 ;
+  var@4 -> s@0 : u32 ;
+  var@5 -> s@1 : u32 ;
+  var@6 -> ⊥ : (u32, bool) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : u32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  z -> ⊥ : u32 ;
+  var@4 -> s@0 : u32 ;
+  var@5 -> s@1 : u32 ;
+  var@6 -> ⊥ : (u32, bool) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : u32 ;
+}
+
+
+- op:
+copy var@4
+
+[Debug] Value to copy:
+s@0 : u32
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  z -> ⊥ : u32 ;
+  var@4 -> s@0 : u32 ;
+  var@5 -> s@1 : u32 ;
+  var@6 -> ⊥ : (u32, bool) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : u32 ;
+}
+
+
+- op:
+copy var@5
+
+[Debug] Value to copy:
+s@1 : u32
+[Debug] 
+**About to evaluate statement**: [
+  var@9 := copy z;
+  var@8 := move var@9 == 15: u32;
+  var@7 := ¬ move var@8;
+  assert(¬move var@7);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  z -> s@2 : u32 ;
+  var@4 -> s@0 : u32 ;
+  var@5 -> s@1 : u32 ;
+  var@6 -> ⊥ : (u32, bool) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : u32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@9 := copy z
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  z -> s@2 : u32 ;
+  var@4 -> s@0 : u32 ;
+  var@5 -> s@1 : u32 ;
+  var@6 -> ⊥ : (u32, bool) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : u32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  z -> s@2 : u32 ;
+  var@4 -> s@0 : u32 ;
+  var@5 -> s@1 : u32 ;
+  var@6 -> ⊥ : (u32, bool) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : u32 ;
+}
+
+
+- op:
+copy z
+
+[Debug] Value to copy:
+s@2 : u32
+[Debug] 
+**About to evaluate statement**: [
+  var@8 := move var@9 == 15: u32;
+  var@7 := ¬ move var@8;
+  assert(¬move var@7);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  z -> s@2 : u32 ;
+  var@4 -> s@0 : u32 ;
+  var@5 -> s@1 : u32 ;
+  var@6 -> ⊥ : (u32, bool) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> s@2 : u32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@8 := move var@9 == 15: u32
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  z -> s@2 : u32 ;
+  var@4 -> s@0 : u32 ;
+  var@5 -> s@1 : u32 ;
+  var@6 -> ⊥ : (u32, bool) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> s@2 : u32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  z -> s@2 : u32 ;
+  var@4 -> s@0 : u32 ;
+  var@5 -> s@1 : u32 ;
+  var@6 -> ⊥ : (u32, bool) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> s@2 : u32 ;
+}
+
+
+- op:
+move var@9
+
+[Debug] Value to move:
+s@2 : u32
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  z -> s@2 : u32 ;
+  var@4 -> s@0 : u32 ;
+  var@5 -> s@1 : u32 ;
+  var@6 -> ⊥ : (u32, bool) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : u32 ;
+}
+
+
+- op:
+15: u32
+
+[Debug] 
+**About to evaluate statement**: [
+  var@7 := ¬ move var@8;
+  assert(¬move var@7);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  z -> s@2 : u32 ;
+  var@4 -> s@0 : u32 ;
+  var@5 -> s@1 : u32 ;
+  var@6 -> ⊥ : (u32, bool) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> s@3 : bool ;
+  var@9 -> ⊥ : u32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@7 := ¬ move var@8
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  z -> s@2 : u32 ;
+  var@4 -> s@0 : u32 ;
+  var@5 -> s@1 : u32 ;
+  var@6 -> ⊥ : (u32, bool) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> s@3 : bool ;
+  var@9 -> ⊥ : u32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  z -> s@2 : u32 ;
+  var@4 -> s@0 : u32 ;
+  var@5 -> s@1 : u32 ;
+  var@6 -> ⊥ : (u32, bool) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> s@3 : bool ;
+  var@9 -> ⊥ : u32 ;
+}
+
+
+- op:
+move var@8
+
+[Debug] Value to move:
+s@3 : bool
+[Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@7);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  z -> s@2 : u32 ;
+  var@4 -> s@0 : u32 ;
+  var@5 -> s@1 : u32 ;
+  var@6 -> ⊥ : (u32, bool) ;
+  var@7 -> s@4 : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : u32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@7)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  z -> s@2 : u32 ;
+  var@4 -> s@0 : u32 ;
+  var@5 -> s@1 : u32 ;
+  var@6 -> ⊥ : (u32, bool) ;
+  var@7 -> s@4 : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : u32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  z -> s@2 : u32 ;
+  var@4 -> s@0 : u32 ;
+  var@5 -> s@1 : u32 ;
+  var@6 -> ⊥ : (u32, bool) ;
+  var@7 -> true ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : u32 ;
+}
+
+
+- op:
+move var@7
+
+[Debug] Value to move:
+true
+[Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@0 : u32 ;
+  y -> s@1 : u32 ;
+  z -> s@2 : u32 ;
+  var@4 -> s@0 : u32 ;
+  var@5 -> s@1 : u32 ;
+  var@6 -> ⊥ : (u32, bool) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : u32 ;
+}
+
+
+
+[Debug] test_function_symbolic: test_neg
+[Debug] 
+**About to evaluate statement**: [
+  var@2 := copy x;
+  var@3 := copy var@2 == -2147483648: i32;
+  assert(¬move var@3);
+  var@0 := - move var@2;
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : i32 ;
+  x -> s@0 : i32 ;
+  var@2 -> ⊥ : i32 ;
+  var@3 -> ⊥ : bool ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@2 := copy x
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : i32 ;
+  x -> s@0 : i32 ;
+  var@2 -> ⊥ : i32 ;
+  var@3 -> ⊥ : bool ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : i32 ;
+  x -> s@0 : i32 ;
+  var@2 -> ⊥ : i32 ;
+  var@3 -> ⊥ : bool ;
+}
+
+
+- op:
+copy x
+
+[Debug] Value to copy:
+s@0 : i32
+[Debug] 
+**About to evaluate statement**: [
+  var@3 := copy var@2 == -2147483648: i32;
+  assert(¬move var@3);
+  var@0 := - move var@2;
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : i32 ;
+  x -> s@0 : i32 ;
+  var@2 -> s@0 : i32 ;
+  var@3 -> ⊥ : bool ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@3 := copy var@2 == -2147483648: i32
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : i32 ;
+  x -> s@0 : i32 ;
+  var@2 -> s@0 : i32 ;
+  var@3 -> ⊥ : bool ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : i32 ;
+  x -> s@0 : i32 ;
+  var@2 -> s@0 : i32 ;
+  var@3 -> ⊥ : bool ;
+}
+
+
+- op:
+copy var@2
+
+[Debug] Value to copy:
+s@0 : i32
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : i32 ;
+  x -> s@0 : i32 ;
+  var@2 -> s@0 : i32 ;
+  var@3 -> ⊥ : bool ;
+}
+
+
+- op:
+-2147483648: i32
+
+[Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@3);
+  var@0 := - move var@2;
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : i32 ;
+  x -> s@0 : i32 ;
+  var@2 -> s@0 : i32 ;
+  var@3 -> s@1 : bool ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@3)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : i32 ;
+  x -> s@0 : i32 ;
+  var@2 -> s@0 : i32 ;
+  var@3 -> s@1 : bool ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : i32 ;
+  x -> s@0 : i32 ;
+  var@2 -> s@0 : i32 ;
+  var@3 -> true ;
+}
+
+
+- op:
+move var@3
+
+[Debug] Value to move:
+true
+[Debug] 
+**About to evaluate statement**: [
+  var@0 := - move var@2;
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : i32 ;
+  x -> s@0 : i32 ;
+  var@2 -> s@0 : i32 ;
+  var@3 -> ⊥ : bool ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@0 := - move var@2
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : i32 ;
+  x -> s@0 : i32 ;
+  var@2 -> s@0 : i32 ;
+  var@3 -> ⊥ : bool ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : i32 ;
+  x -> s@0 : i32 ;
+  var@2 -> s@0 : i32 ;
+  var@3 -> ⊥ : bool ;
+}
+
+
+- op:
+move var@2
+
+[Debug] Value to move:
+s@0 : i32
+[Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> s@2 : i32 ;
+  x -> s@0 : i32 ;
+  var@2 -> ⊥ : i32 ;
+  var@3 -> ⊥ : bool ;
+}
+
+
+
+[Debug] test_function_symbolic: test_neg1
+[Debug] 
+**About to evaluate statement**: [
+  x := 3: i32;
+  y := -3: i32;
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⊥ : i32 ;
+  y -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  x := 3: i32
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⊥ : i32 ;
+  y -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⊥ : i32 ;
+  y -> ⊥ : i32 ;
+}
+
+
+- op:
+3: i32
+
+[Debug] 
+**About to evaluate statement**: [
+  y := -3: i32;
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 3: i32 ;
+  y -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  y := -3: i32
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 3: i32 ;
+  y -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 3: i32 ;
+  y -> ⊥ : i32 ;
+}
+
+
+- op:
+-3: i32
+
+[Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 3: i32 ;
+  y -> -3: i32 ;
+}
+
+
+
+[Debug] test_function_symbolic: refs_test1
+[Debug] 
+**About to evaluate statement**: [
+  x := 0: i32;
+  px := &mut x;
+  ppx := &mut px;
+  *(*(ppx)) := 1: i32;
+  var@6 := copy x;
+  var@5 := move var@6 == 1: i32;
+  var@4 := ¬ move var@5;
+  assert(¬move var@4);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⊥ : i32 ;
+  px -> ⊥ : &'_ mut (i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@4 -> ⊥ : bool ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  x := 0: i32
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⊥ : i32 ;
+  px -> ⊥ : &'_ mut (i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@4 -> ⊥ : bool ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⊥ : i32 ;
+  px -> ⊥ : &'_ mut (i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@4 -> ⊥ : bool ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : i32 ;
+}
+
+
+- op:
+0: i32
+
+[Debug] 
+**About to evaluate statement**: [
+  px := &mut x;
+  ppx := &mut px;
+  *(*(ppx)) := 1: i32;
+  var@6 := copy x;
+  var@5 := move var@6 == 1: i32;
+  var@4 := ¬ move var@5;
+  assert(¬move var@4);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  px -> ⊥ : &'_ mut (i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@4 -> ⊥ : bool ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  px := &mut x
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  px -> ⊥ : &'_ mut (i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@4 -> ⊥ : bool ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  ppx := &mut px;
+  *(*(ppx)) := 1: i32;
+  var@6 := copy x;
+  var@5 := move var@6 == 1: i32;
+  var@4 := ¬ move var@5;
+  assert(¬move var@4);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  px -> &mut@0 (0: i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@4 -> ⊥ : bool ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  ppx := &mut px
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  px -> &mut@0 (0: i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@4 -> ⊥ : bool ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  *(*(ppx)) := 1: i32;
+  var@6 := copy x;
+  var@5 := move var@6 == 1: i32;
+  var@4 := ¬ move var@5;
+  assert(¬move var@4);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  px -> ⌊mut@1⌋ ;
+  ppx -> &mut@1 (&mut@0 (0: i32)) ;
+  var@4 -> ⊥ : bool ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  *(*(ppx)) := 1: i32
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  px -> ⌊mut@1⌋ ;
+  ppx -> &mut@1 (&mut@0 (0: i32)) ;
+  var@4 -> ⊥ : bool ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  px -> ⌊mut@1⌋ ;
+  ppx -> &mut@1 (&mut@0 (0: i32)) ;
+  var@4 -> ⊥ : bool ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : i32 ;
+}
+
+
+- op:
+1: i32
+
+[Debug] 
+**About to evaluate statement**: [
+  var@6 := copy x;
+  var@5 := move var@6 == 1: i32;
+  var@4 := ¬ move var@5;
+  assert(¬move var@4);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  px -> ⌊mut@1⌋ ;
+  ppx -> &mut@1 (&mut@0 (1: i32)) ;
+  var@4 -> ⊥ : bool ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@6 := copy x
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  px -> ⌊mut@1⌋ ;
+  ppx -> &mut@1 (&mut@0 (1: i32)) ;
+  var@4 -> ⊥ : bool ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  px -> ⌊mut@1⌋ ;
+  ppx -> &mut@1 (&mut@0 (1: i32)) ;
+  var@4 -> ⊥ : bool ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : i32 ;
+}
+
+
+- op:
+copy x
+
+[Debug] Value to copy:
+1: i32
+[Debug] 
+**About to evaluate statement**: [
+  var@5 := move var@6 == 1: i32;
+  var@4 := ¬ move var@5;
+  assert(¬move var@4);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 1: i32 ;
+  px -> ⊥ : &'_ mut (i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@4 -> ⊥ : bool ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> 1: i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@5 := move var@6 == 1: i32
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 1: i32 ;
+  px -> ⊥ : &'_ mut (i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@4 -> ⊥ : bool ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> 1: i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 1: i32 ;
+  px -> ⊥ : &'_ mut (i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@4 -> ⊥ : bool ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> 1: i32 ;
+}
+
+
+- op:
+move var@6
+
+[Debug] Value to move:
+1: i32
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 1: i32 ;
+  px -> ⊥ : &'_ mut (i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@4 -> ⊥ : bool ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : i32 ;
+}
+
+
+- op:
+1: i32
+
+[Debug] 
+**About to evaluate statement**: [
+  var@4 := ¬ move var@5;
+  assert(¬move var@4);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 1: i32 ;
+  px -> ⊥ : &'_ mut (i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@4 -> ⊥ : bool ;
+  var@5 -> s@0 : bool ;
+  var@6 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@4 := ¬ move var@5
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 1: i32 ;
+  px -> ⊥ : &'_ mut (i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@4 -> ⊥ : bool ;
+  var@5 -> s@0 : bool ;
+  var@6 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 1: i32 ;
+  px -> ⊥ : &'_ mut (i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@4 -> ⊥ : bool ;
+  var@5 -> s@0 : bool ;
+  var@6 -> ⊥ : i32 ;
+}
+
+
+- op:
+move var@5
+
+[Debug] Value to move:
+s@0 : bool
+[Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@4);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 1: i32 ;
+  px -> ⊥ : &'_ mut (i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@4 -> s@1 : bool ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@4)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 1: i32 ;
+  px -> ⊥ : &'_ mut (i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@4 -> s@1 : bool ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 1: i32 ;
+  px -> ⊥ : &'_ mut (i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@4 -> true ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : i32 ;
+}
+
+
+- op:
+move var@4
+
+[Debug] Value to move:
+true
+[Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 1: i32 ;
+  px -> ⊥ : &'_ mut (i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@4 -> ⊥ : bool ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] test_function_symbolic: refs_test2
+[Debug] 
+**About to evaluate statement**: [
+  x := 0: i32;
+  y := 1: i32;
+  px := &mut x;
+  py := &mut y;
+  ppx := &mut px;
+  var@6 := &mut *(py);
+  *(ppx) := move var@6;
+  *(*(ppx)) := 2: i32;
+  var@9 := copy *(px);
+  var@8 := move var@9 == 2: i32;
+  var@7 := ¬ move var@8;
+  assert(¬move var@7);
+  var@12 := copy x;
+  var@11 := move var@12 == 0: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy *(py);
+  var@14 := move var@15 == 2: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 2: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⊥ : i32 ;
+  y -> ⊥ : i32 ;
+  px -> ⊥ : &'_ mut (i32) ;
+  py -> ⊥ : &'_ mut (i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  x := 0: i32
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⊥ : i32 ;
+  y -> ⊥ : i32 ;
+  px -> ⊥ : &'_ mut (i32) ;
+  py -> ⊥ : &'_ mut (i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⊥ : i32 ;
+  y -> ⊥ : i32 ;
+  px -> ⊥ : &'_ mut (i32) ;
+  py -> ⊥ : &'_ mut (i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+- op:
+0: i32
+
+[Debug] 
+**About to evaluate statement**: [
+  y := 1: i32;
+  px := &mut x;
+  py := &mut y;
+  ppx := &mut px;
+  var@6 := &mut *(py);
+  *(ppx) := move var@6;
+  *(*(ppx)) := 2: i32;
+  var@9 := copy *(px);
+  var@8 := move var@9 == 2: i32;
+  var@7 := ¬ move var@8;
+  assert(¬move var@7);
+  var@12 := copy x;
+  var@11 := move var@12 == 0: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy *(py);
+  var@14 := move var@15 == 2: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 2: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⊥ : i32 ;
+  px -> ⊥ : &'_ mut (i32) ;
+  py -> ⊥ : &'_ mut (i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  y := 1: i32
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⊥ : i32 ;
+  px -> ⊥ : &'_ mut (i32) ;
+  py -> ⊥ : &'_ mut (i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⊥ : i32 ;
+  px -> ⊥ : &'_ mut (i32) ;
+  py -> ⊥ : &'_ mut (i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+- op:
+1: i32
+
+[Debug] 
+**About to evaluate statement**: [
+  px := &mut x;
+  py := &mut y;
+  ppx := &mut px;
+  var@6 := &mut *(py);
+  *(ppx) := move var@6;
+  *(*(ppx)) := 2: i32;
+  var@9 := copy *(px);
+  var@8 := move var@9 == 2: i32;
+  var@7 := ¬ move var@8;
+  assert(¬move var@7);
+  var@12 := copy x;
+  var@11 := move var@12 == 0: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy *(py);
+  var@14 := move var@15 == 2: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 2: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> 1: i32 ;
+  px -> ⊥ : &'_ mut (i32) ;
+  py -> ⊥ : &'_ mut (i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  px := &mut x
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> 1: i32 ;
+  px -> ⊥ : &'_ mut (i32) ;
+  py -> ⊥ : &'_ mut (i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  py := &mut y;
+  ppx := &mut px;
+  var@6 := &mut *(py);
+  *(ppx) := move var@6;
+  *(*(ppx)) := 2: i32;
+  var@9 := copy *(px);
+  var@8 := move var@9 == 2: i32;
+  var@7 := ¬ move var@8;
+  assert(¬move var@7);
+  var@12 := copy x;
+  var@11 := move var@12 == 0: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy *(py);
+  var@14 := move var@15 == 2: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 2: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  y -> 1: i32 ;
+  px -> &mut@0 (0: i32) ;
+  py -> ⊥ : &'_ mut (i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  py := &mut y
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  y -> 1: i32 ;
+  px -> &mut@0 (0: i32) ;
+  py -> ⊥ : &'_ mut (i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  ppx := &mut px;
+  var@6 := &mut *(py);
+  *(ppx) := move var@6;
+  *(*(ppx)) := 2: i32;
+  var@9 := copy *(px);
+  var@8 := move var@9 == 2: i32;
+  var@7 := ¬ move var@8;
+  assert(¬move var@7);
+  var@12 := copy x;
+  var@11 := move var@12 == 0: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy *(py);
+  var@14 := move var@15 == 2: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 2: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  y -> ⌊mut@1⌋ ;
+  px -> &mut@0 (0: i32) ;
+  py -> &mut@1 (1: i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  ppx := &mut px
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  y -> ⌊mut@1⌋ ;
+  px -> &mut@0 (0: i32) ;
+  py -> &mut@1 (1: i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@6 := &mut *(py);
+  *(ppx) := move var@6;
+  *(*(ppx)) := 2: i32;
+  var@9 := copy *(px);
+  var@8 := move var@9 == 2: i32;
+  var@7 := ¬ move var@8;
+  assert(¬move var@7);
+  var@12 := copy x;
+  var@11 := move var@12 == 0: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy *(py);
+  var@14 := move var@15 == 2: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 2: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  y -> ⌊mut@1⌋ ;
+  px -> ⌊mut@2⌋ ;
+  py -> &mut@1 (1: i32) ;
+  ppx -> &mut@2 (&mut@0 (0: i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@6 := &mut *(py)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  y -> ⌊mut@1⌋ ;
+  px -> ⌊mut@2⌋ ;
+  py -> &mut@1 (1: i32) ;
+  ppx -> &mut@2 (&mut@0 (0: i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  *(ppx) := move var@6;
+  *(*(ppx)) := 2: i32;
+  var@9 := copy *(px);
+  var@8 := move var@9 == 2: i32;
+  var@7 := ¬ move var@8;
+  assert(¬move var@7);
+  var@12 := copy x;
+  var@11 := move var@12 == 0: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy *(py);
+  var@14 := move var@15 == 2: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 2: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  y -> ⌊mut@1⌋ ;
+  px -> ⌊mut@2⌋ ;
+  py -> &mut@1 (⌊mut@3⌋) ;
+  ppx -> &mut@2 (&mut@0 (0: i32)) ;
+  var@6 -> &mut@3 (1: i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  *(ppx) := move var@6
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  y -> ⌊mut@1⌋ ;
+  px -> ⌊mut@2⌋ ;
+  py -> &mut@1 (⌊mut@3⌋) ;
+  ppx -> &mut@2 (&mut@0 (0: i32)) ;
+  var@6 -> &mut@3 (1: i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  y -> ⌊mut@1⌋ ;
+  px -> ⌊mut@2⌋ ;
+  py -> &mut@1 (⌊mut@3⌋) ;
+  ppx -> &mut@2 (&mut@0 (0: i32)) ;
+  var@6 -> &mut@3 (1: i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+- op:
+move var@6
+
+[Debug] Value to move:
+&mut@3 (1: i32)
+[Debug] 
+**About to evaluate statement**: [
+  *(*(ppx)) := 2: i32;
+  var@9 := copy *(px);
+  var@8 := move var@9 == 2: i32;
+  var@7 := ¬ move var@8;
+  assert(¬move var@7);
+  var@12 := copy x;
+  var@11 := move var@12 == 0: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy *(py);
+  var@14 := move var@15 == 2: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 2: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⌊mut@1⌋ ;
+  px -> ⌊mut@2⌋ ;
+  py -> &mut@1 (⌊mut@3⌋) ;
+  ppx -> &mut@2 (&mut@3 (1: i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  *(*(ppx)) := 2: i32
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⌊mut@1⌋ ;
+  px -> ⌊mut@2⌋ ;
+  py -> &mut@1 (⌊mut@3⌋) ;
+  ppx -> &mut@2 (&mut@3 (1: i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⌊mut@1⌋ ;
+  px -> ⌊mut@2⌋ ;
+  py -> &mut@1 (⌊mut@3⌋) ;
+  ppx -> &mut@2 (&mut@3 (1: i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+- op:
+2: i32
+
+[Debug] 
+**About to evaluate statement**: [
+  var@9 := copy *(px);
+  var@8 := move var@9 == 2: i32;
+  var@7 := ¬ move var@8;
+  assert(¬move var@7);
+  var@12 := copy x;
+  var@11 := move var@12 == 0: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy *(py);
+  var@14 := move var@15 == 2: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 2: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⌊mut@1⌋ ;
+  px -> ⌊mut@2⌋ ;
+  py -> &mut@1 (⌊mut@3⌋) ;
+  ppx -> &mut@2 (&mut@3 (2: i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@9 := copy *(px)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⌊mut@1⌋ ;
+  px -> ⌊mut@2⌋ ;
+  py -> &mut@1 (⌊mut@3⌋) ;
+  ppx -> &mut@2 (&mut@3 (2: i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⌊mut@1⌋ ;
+  px -> ⌊mut@2⌋ ;
+  py -> &mut@1 (⌊mut@3⌋) ;
+  ppx -> &mut@2 (&mut@3 (2: i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+- op:
+copy *(px)
+
+[Debug] Value to copy:
+2: i32
+[Debug] 
+**About to evaluate statement**: [
+  var@8 := move var@9 == 2: i32;
+  var@7 := ¬ move var@8;
+  assert(¬move var@7);
+  var@12 := copy x;
+  var@11 := move var@12 == 0: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy *(py);
+  var@14 := move var@15 == 2: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 2: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⌊mut@1⌋ ;
+  px -> &mut@3 (2: i32) ;
+  py -> &mut@1 (⌊mut@3⌋) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> 2: i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@8 := move var@9 == 2: i32
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⌊mut@1⌋ ;
+  px -> &mut@3 (2: i32) ;
+  py -> &mut@1 (⌊mut@3⌋) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> 2: i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⌊mut@1⌋ ;
+  px -> &mut@3 (2: i32) ;
+  py -> &mut@1 (⌊mut@3⌋) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> 2: i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+- op:
+move var@9
+
+[Debug] Value to move:
+2: i32
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⌊mut@1⌋ ;
+  px -> &mut@3 (2: i32) ;
+  py -> &mut@1 (⌊mut@3⌋) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+- op:
+2: i32
+
+[Debug] 
+**About to evaluate statement**: [
+  var@7 := ¬ move var@8;
+  assert(¬move var@7);
+  var@12 := copy x;
+  var@11 := move var@12 == 0: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy *(py);
+  var@14 := move var@15 == 2: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 2: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⌊mut@1⌋ ;
+  px -> &mut@3 (2: i32) ;
+  py -> &mut@1 (⌊mut@3⌋) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> s@0 : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@7 := ¬ move var@8
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⌊mut@1⌋ ;
+  px -> &mut@3 (2: i32) ;
+  py -> &mut@1 (⌊mut@3⌋) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> s@0 : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⌊mut@1⌋ ;
+  px -> &mut@3 (2: i32) ;
+  py -> &mut@1 (⌊mut@3⌋) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> s@0 : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+- op:
+move var@8
+
+[Debug] Value to move:
+s@0 : bool
+[Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@7);
+  var@12 := copy x;
+  var@11 := move var@12 == 0: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy *(py);
+  var@14 := move var@15 == 2: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 2: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⌊mut@1⌋ ;
+  px -> &mut@3 (2: i32) ;
+  py -> &mut@1 (⌊mut@3⌋) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> s@1 : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@7)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⌊mut@1⌋ ;
+  px -> &mut@3 (2: i32) ;
+  py -> &mut@1 (⌊mut@3⌋) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> s@1 : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⌊mut@1⌋ ;
+  px -> &mut@3 (2: i32) ;
+  py -> &mut@1 (⌊mut@3⌋) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> true ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+- op:
+move var@7
+
+[Debug] Value to move:
+true
+[Debug] 
+**About to evaluate statement**: [
+  var@12 := copy x;
+  var@11 := move var@12 == 0: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy *(py);
+  var@14 := move var@15 == 2: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 2: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⌊mut@1⌋ ;
+  px -> &mut@3 (2: i32) ;
+  py -> &mut@1 (⌊mut@3⌋) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@12 := copy x
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⌊mut@1⌋ ;
+  px -> &mut@3 (2: i32) ;
+  py -> &mut@1 (⌊mut@3⌋) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⌊mut@1⌋ ;
+  px -> &mut@3 (2: i32) ;
+  py -> &mut@1 (⌊mut@3⌋) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+- op:
+copy x
+
+[Debug] Value to copy:
+0: i32
+[Debug] 
+**About to evaluate statement**: [
+  var@11 := move var@12 == 0: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy *(py);
+  var@14 := move var@15 == 2: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 2: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⌊mut@1⌋ ;
+  px -> &mut@3 (2: i32) ;
+  py -> &mut@1 (⌊mut@3⌋) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> 0: i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@11 := move var@12 == 0: i32
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⌊mut@1⌋ ;
+  px -> &mut@3 (2: i32) ;
+  py -> &mut@1 (⌊mut@3⌋) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> 0: i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⌊mut@1⌋ ;
+  px -> &mut@3 (2: i32) ;
+  py -> &mut@1 (⌊mut@3⌋) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> 0: i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+- op:
+move var@12
+
+[Debug] Value to move:
+0: i32
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⌊mut@1⌋ ;
+  px -> &mut@3 (2: i32) ;
+  py -> &mut@1 (⌊mut@3⌋) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+- op:
+0: i32
+
+[Debug] 
+**About to evaluate statement**: [
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy *(py);
+  var@14 := move var@15 == 2: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 2: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⌊mut@1⌋ ;
+  px -> &mut@3 (2: i32) ;
+  py -> &mut@1 (⌊mut@3⌋) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> s@2 : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@10 := ¬ move var@11
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⌊mut@1⌋ ;
+  px -> &mut@3 (2: i32) ;
+  py -> &mut@1 (⌊mut@3⌋) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> s@2 : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⌊mut@1⌋ ;
+  px -> &mut@3 (2: i32) ;
+  py -> &mut@1 (⌊mut@3⌋) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> s@2 : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+- op:
+move var@11
+
+[Debug] Value to move:
+s@2 : bool
+[Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@10);
+  var@15 := copy *(py);
+  var@14 := move var@15 == 2: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 2: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⌊mut@1⌋ ;
+  px -> &mut@3 (2: i32) ;
+  py -> &mut@1 (⌊mut@3⌋) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> s@3 : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@10)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⌊mut@1⌋ ;
+  px -> &mut@3 (2: i32) ;
+  py -> &mut@1 (⌊mut@3⌋) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> s@3 : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⌊mut@1⌋ ;
+  px -> &mut@3 (2: i32) ;
+  py -> &mut@1 (⌊mut@3⌋) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> true ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+- op:
+move var@10
+
+[Debug] Value to move:
+true
+[Debug] 
+**About to evaluate statement**: [
+  var@15 := copy *(py);
+  var@14 := move var@15 == 2: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 2: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⌊mut@1⌋ ;
+  px -> &mut@3 (2: i32) ;
+  py -> &mut@1 (⌊mut@3⌋) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@15 := copy *(py)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⌊mut@1⌋ ;
+  px -> &mut@3 (2: i32) ;
+  py -> &mut@1 (⌊mut@3⌋) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⌊mut@1⌋ ;
+  px -> &mut@3 (2: i32) ;
+  py -> &mut@1 (⌊mut@3⌋) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+- op:
+copy *(py)
+
+[Debug] Value to copy:
+2: i32
+[Debug] 
+**About to evaluate statement**: [
+  var@14 := move var@15 == 2: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 2: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⌊mut@1⌋ ;
+  px -> ⊥ : &'_ mut (i32) ;
+  py -> &mut@1 (2: i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> 2: i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@14 := move var@15 == 2: i32
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⌊mut@1⌋ ;
+  px -> ⊥ : &'_ mut (i32) ;
+  py -> &mut@1 (2: i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> 2: i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⌊mut@1⌋ ;
+  px -> ⊥ : &'_ mut (i32) ;
+  py -> &mut@1 (2: i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> 2: i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+- op:
+move var@15
+
+[Debug] Value to move:
+2: i32
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⌊mut@1⌋ ;
+  px -> ⊥ : &'_ mut (i32) ;
+  py -> &mut@1 (2: i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+- op:
+2: i32
+
+[Debug] 
+**About to evaluate statement**: [
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 2: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⌊mut@1⌋ ;
+  px -> ⊥ : &'_ mut (i32) ;
+  py -> &mut@1 (2: i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> s@4 : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@13 := ¬ move var@14
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⌊mut@1⌋ ;
+  px -> ⊥ : &'_ mut (i32) ;
+  py -> &mut@1 (2: i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> s@4 : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⌊mut@1⌋ ;
+  px -> ⊥ : &'_ mut (i32) ;
+  py -> &mut@1 (2: i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> s@4 : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+- op:
+move var@14
+
+[Debug] Value to move:
+s@4 : bool
+[Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 2: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⌊mut@1⌋ ;
+  px -> ⊥ : &'_ mut (i32) ;
+  py -> &mut@1 (2: i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> s@5 : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@13)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⌊mut@1⌋ ;
+  px -> ⊥ : &'_ mut (i32) ;
+  py -> &mut@1 (2: i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> s@5 : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⌊mut@1⌋ ;
+  px -> ⊥ : &'_ mut (i32) ;
+  py -> &mut@1 (2: i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> true ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+- op:
+move var@13
+
+[Debug] Value to move:
+true
+[Debug] 
+**About to evaluate statement**: [
+  var@18 := copy y;
+  var@17 := move var@18 == 2: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⌊mut@1⌋ ;
+  px -> ⊥ : &'_ mut (i32) ;
+  py -> &mut@1 (2: i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@18 := copy y
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⌊mut@1⌋ ;
+  px -> ⊥ : &'_ mut (i32) ;
+  py -> &mut@1 (2: i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⌊mut@1⌋ ;
+  px -> ⊥ : &'_ mut (i32) ;
+  py -> &mut@1 (2: i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+- op:
+copy y
+
+[Debug] Value to copy:
+2: i32
+[Debug] 
+**About to evaluate statement**: [
+  var@17 := move var@18 == 2: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> 2: i32 ;
+  px -> ⊥ : &'_ mut (i32) ;
+  py -> ⊥ : &'_ mut (i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> 2: i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@17 := move var@18 == 2: i32
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> 2: i32 ;
+  px -> ⊥ : &'_ mut (i32) ;
+  py -> ⊥ : &'_ mut (i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> 2: i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> 2: i32 ;
+  px -> ⊥ : &'_ mut (i32) ;
+  py -> ⊥ : &'_ mut (i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> 2: i32 ;
+}
+
+
+- op:
+move var@18
+
+[Debug] Value to move:
+2: i32
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> 2: i32 ;
+  px -> ⊥ : &'_ mut (i32) ;
+  py -> ⊥ : &'_ mut (i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+- op:
+2: i32
+
+[Debug] 
+**About to evaluate statement**: [
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> 2: i32 ;
+  px -> ⊥ : &'_ mut (i32) ;
+  py -> ⊥ : &'_ mut (i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> s@6 : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@16 := ¬ move var@17
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> 2: i32 ;
+  px -> ⊥ : &'_ mut (i32) ;
+  py -> ⊥ : &'_ mut (i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> s@6 : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> 2: i32 ;
+  px -> ⊥ : &'_ mut (i32) ;
+  py -> ⊥ : &'_ mut (i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> s@6 : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+- op:
+move var@17
+
+[Debug] Value to move:
+s@6 : bool
+[Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> 2: i32 ;
+  px -> ⊥ : &'_ mut (i32) ;
+  py -> ⊥ : &'_ mut (i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> s@7 : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@16)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> 2: i32 ;
+  px -> ⊥ : &'_ mut (i32) ;
+  py -> ⊥ : &'_ mut (i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> s@7 : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> 2: i32 ;
+  px -> ⊥ : &'_ mut (i32) ;
+  py -> ⊥ : &'_ mut (i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> true ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+- op:
+move var@16
+
+[Debug] Value to move:
+true
+[Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> 2: i32 ;
+  px -> ⊥ : &'_ mut (i32) ;
+  py -> ⊥ : &'_ mut (i32) ;
+  ppx -> ⊥ : &'_ mut (&'_ mut (i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : i32 ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] test_function_symbolic: test_list1
+[Debug] 
+**About to evaluate statement**: [
+  set_discriminant(var@3, 1);
+  var@2 := move alloc::boxed::Box<test1::List<i32>>::new(move var@3);
+  (l as test1::List::Cons).0 := 0: i32;
+  (l as test1::List::Cons).1 := move var@2;
+  set_discriminant(l, 0);
+  drop(l);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  set_discriminant(var@3, 1)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@2 := move alloc::boxed::Box<test1::List<i32>>::new(move var@3);
+  (l as test1::List::Cons).0 := 0: i32;
+  (l as test1::List::Cons).1 := move var@2;
+  set_discriminant(l, 0);
+  drop(l);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> test1::List::Nil ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@2 := move alloc::boxed::Box<test1::List<i32>>::new(move var@3)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> test1::List::Nil ;
+}
+
+
+
+[Debug] eval_non_local_function_call:
+- fid:CfimAst.BoxNew
+- type_params: [test1::List<i32>]
+- args: [move var@3]
+- dest: var@2
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> test1::List::Nil ;
+}
+
+
+- op:
+move var@3
+
+[Debug] Value to move:
+test1::List::Nil
+[Debug] 
+**About to evaluate statement**: [
+  (l as test1::List::Cons).0 := 0: i32;
+  (l as test1::List::Cons).1 := move var@2;
+  set_discriminant(l, 0);
+  drop(l);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> s@0 : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  (l as test1::List::Cons).0 := 0: i32
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> s@0 : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> s@0 : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+}
+
+
+- op:
+0: i32
+
+[Debug] expand_bottom_value_from_projection:
+pe: (Expressions.Field ((Expressions.ProjAdt (1, (Some 0))), 0))
+ty: (Types.Adt ((Types.AdtId 1), [], [(Types.Integer Types.I32)]))
+[Debug] 
+**About to evaluate statement**: [
+  (l as test1::List::Cons).1 := move var@2;
+  set_discriminant(l, 0);
+  drop(l);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> test1::List::Cons { 0 = 0: i32; 1 = ⊥ : std::boxed::Box<test1::List<i32>>; } ;
+  var@2 -> s@0 : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  (l as test1::List::Cons).1 := move var@2
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> test1::List::Cons { 0 = 0: i32; 1 = ⊥ : std::boxed::Box<test1::List<i32>>; } ;
+  var@2 -> s@0 : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> test1::List::Cons { 0 = 0: i32; 1 = ⊥ : std::boxed::Box<test1::List<i32>>; } ;
+  var@2 -> s@0 : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+}
+
+
+- op:
+move var@2
+
+[Debug] Value to move:
+s@0 : std::boxed::Box<test1::List<i32>>
+[Debug] 
+**About to evaluate statement**: [
+  set_discriminant(l, 0);
+  drop(l);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> test1::List::Cons { 0 = 0: i32; 1 = s@0 : std::boxed::Box<test1::List<i32>>; } ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  set_discriminant(l, 0)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> test1::List::Cons { 0 = 0: i32; 1 = s@0 : std::boxed::Box<test1::List<i32>>; } ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  drop(l);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> test1::List::Cons { 0 = 0: i32; 1 = s@0 : std::boxed::Box<test1::List<i32>>; } ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  drop(l)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> test1::List::Cons { 0 = 0: i32; 1 = s@0 : std::boxed::Box<test1::List<i32>>; } ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+}
+
+
+
+[Debug] drop_value: place: l
+[Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+}
+
+
+
+[Debug] test_function_symbolic: test_box1
+[Debug] 
+**About to evaluate statement**: [
+  b := move alloc::boxed::Box<i32>::new(0: i32);
+  var@3 := &two-phase b;
+  x := move core::ops::deref::DerefMut<i32>::deref_mut(move var@3);
+  *(x) := 1: i32;
+  var@5 := &b;
+  x := move core::ops::deref::Deref<Box<i32>>::deref(move var@5);
+  var@8 := copy *(x);
+  var@7 := move var@8 == 1: i32;
+  var@6 := ¬ move var@7;
+  assert(¬move var@6);
+  drop(b);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  b -> ⊥ : std::boxed::Box<i32> ;
+  x -> ⊥ : &'_ mut (i32) ;
+  var@3 -> ⊥ : &'_ mut (std::boxed::Box<i32>) ;
+  x -> ⊥ : &'_ (i32) ;
+  var@5 -> ⊥ : &'_ (std::boxed::Box<i32>) ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  b := move alloc::boxed::Box<i32>::new(0: i32)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  b -> ⊥ : std::boxed::Box<i32> ;
+  x -> ⊥ : &'_ mut (i32) ;
+  var@3 -> ⊥ : &'_ mut (std::boxed::Box<i32>) ;
+  x -> ⊥ : &'_ (i32) ;
+  var@5 -> ⊥ : &'_ (std::boxed::Box<i32>) ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_non_local_function_call:
+- fid:CfimAst.BoxNew
+- type_params: [i32]
+- args: [0: i32]
+- dest: b
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  b -> ⊥ : std::boxed::Box<i32> ;
+  x -> ⊥ : &'_ mut (i32) ;
+  var@3 -> ⊥ : &'_ mut (std::boxed::Box<i32>) ;
+  x -> ⊥ : &'_ (i32) ;
+  var@5 -> ⊥ : &'_ (std::boxed::Box<i32>) ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : i32 ;
+}
+
+
+- op:
+0: i32
+
+[Debug] 
+**About to evaluate statement**: [
+  var@3 := &two-phase b;
+  x := move core::ops::deref::DerefMut<i32>::deref_mut(move var@3);
+  *(x) := 1: i32;
+  var@5 := &b;
+  x := move core::ops::deref::Deref<Box<i32>>::deref(move var@5);
+  var@8 := copy *(x);
+  var@7 := move var@8 == 1: i32;
+  var@6 := ¬ move var@7;
+  assert(¬move var@6);
+  drop(b);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  b -> s@0 : std::boxed::Box<i32> ;
+  x -> ⊥ : &'_ mut (i32) ;
+  var@3 -> ⊥ : &'_ mut (std::boxed::Box<i32>) ;
+  x -> ⊥ : &'_ (i32) ;
+  var@5 -> ⊥ : &'_ (std::boxed::Box<i32>) ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@3 := &two-phase b
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  b -> s@0 : std::boxed::Box<i32> ;
+  x -> ⊥ : &'_ mut (i32) ;
+  var@3 -> ⊥ : &'_ mut (std::boxed::Box<i32>) ;
+  x -> ⊥ : &'_ (i32) ;
+  var@5 -> ⊥ : &'_ (std::boxed::Box<i32>) ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  x := move core::ops::deref::DerefMut<i32>::deref_mut(move var@3);
+  *(x) := 1: i32;
+  var@5 := &b;
+  x := move core::ops::deref::Deref<Box<i32>>::deref(move var@5);
+  var@8 := copy *(x);
+  var@7 := move var@8 == 1: i32;
+  var@6 := ¬ move var@7;
+  assert(¬move var@6);
+  drop(b);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  b -> @shared_loan({0}, s@0 : std::boxed::Box<i32>) ;
+  x -> ⊥ : &'_ mut (i32) ;
+  var@3 -> ⌊inactivated_mut@0⌋ ;
+  x -> ⊥ : &'_ (i32) ;
+  var@5 -> ⊥ : &'_ (std::boxed::Box<i32>) ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  x := move core::ops::deref::DerefMut<i32>::deref_mut(move var@3)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  b -> @shared_loan({0}, s@0 : std::boxed::Box<i32>) ;
+  x -> ⊥ : &'_ mut (i32) ;
+  var@3 -> ⌊inactivated_mut@0⌋ ;
+  x -> ⊥ : &'_ (i32) ;
+  var@5 -> ⊥ : &'_ (std::boxed::Box<i32>) ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_non_local_function_call:
+- fid:CfimAst.BoxDerefMut
+- type_params: [i32]
+- args: [move var@3]
+- dest: x
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  b -> @shared_loan({0}, s@0 : std::boxed::Box<i32>) ;
+  x -> ⊥ : &'_ mut (i32) ;
+  var@3 -> ⌊inactivated_mut@0⌋ ;
+  x -> ⊥ : &'_ (i32) ;
+  var@5 -> ⊥ : &'_ (std::boxed::Box<i32>) ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : i32 ;
+}
+
+
+- op:
+move var@3
+
+[Debug] activate_inactivated_mut_borrow: resulting value:
+{ Values.value =
+  (Values.Symbolic
+     { Values.sv_id = 0;
+       sv_ty =
+       (Types.Adt ((Types.Assumed Types.Box), [], [(Types.Integer Types.I32)]
+          ))
+       });
+  ty =
+  (Types.Adt ((Types.Assumed Types.Box), [], [(Types.Integer Types.I32)])) }
+[Debug] Value to move:
+&mut@0 (s@0 : std::boxed::Box<i32>)
+[Debug] 
+**About to evaluate statement**: [
+  *(x) := 1: i32;
+  var@5 := &b;
+  x := move core::ops::deref::Deref<Box<i32>>::deref(move var@5);
+  var@8 := copy *(x);
+  var@7 := move var@8 == 1: i32;
+  var@6 := ¬ move var@7;
+  assert(¬move var@6);
+  drop(b);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  b -> ⌊mut@0⌋ ;
+  x -> s@1 : &r@0 mut (i32) ;
+  var@3 -> ⊥ : &'_ mut (std::boxed::Box<i32>) ;
+  x -> ⊥ : &'_ (i32) ;
+  var@5 -> ⊥ : &'_ (std::boxed::Box<i32>) ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : i32 ;
+  abs@0{parents={}}{regions={0}} {
+    &mut@0 (proj_borrows (s@0 : std::boxed::Box<i32> <: std::boxed::Box<i32>)),
+    proj_loans (s@1 : &r@0 mut (i32))
+  }
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  *(x) := 1: i32
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  b -> ⌊mut@0⌋ ;
+  x -> s@1 : &r@0 mut (i32) ;
+  var@3 -> ⊥ : &'_ mut (std::boxed::Box<i32>) ;
+  x -> ⊥ : &'_ (i32) ;
+  var@5 -> ⊥ : &'_ (std::boxed::Box<i32>) ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : i32 ;
+  abs@0{parents={}}{regions={0}} {
+    &mut@0 (proj_borrows (s@0 : std::boxed::Box<i32> <: std::boxed::Box<i32>)),
+    proj_loans (s@1 : &r@0 mut (i32))
+  }
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  b -> ⌊mut@0⌋ ;
+  x -> s@1 : &r@0 mut (i32) ;
+  var@3 -> ⊥ : &'_ mut (std::boxed::Box<i32>) ;
+  x -> ⊥ : &'_ (i32) ;
+  var@5 -> ⊥ : &'_ (std::boxed::Box<i32>) ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : i32 ;
+  abs@0{parents={}}{regions={0}} {
+    &mut@0 (proj_borrows (s@0 : std::boxed::Box<i32> <: std::boxed::Box<i32>)),
+    proj_loans (s@1 : &r@0 mut (i32))
+  }
+}
+
+
+- op:
+1: i32
+
+[Debug] 
+**About to evaluate statement**: [
+  var@5 := &b;
+  x := move core::ops::deref::Deref<Box<i32>>::deref(move var@5);
+  var@8 := copy *(x);
+  var@7 := move var@8 == 1: i32;
+  var@6 := ¬ move var@7;
+  assert(¬move var@6);
+  drop(b);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  b -> ⌊mut@0⌋ ;
+  x -> &mut@1 (1: i32) ;
+  var@3 -> ⊥ : &'_ mut (std::boxed::Box<i32>) ;
+  x -> ⊥ : &'_ (i32) ;
+  var@5 -> ⊥ : &'_ (std::boxed::Box<i32>) ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : i32 ;
+  abs@0{parents={}}{regions={0}} {
+    &mut@0 (proj_borrows (s@0 : std::boxed::Box<i32> <: std::boxed::Box<i32>)),
+    ⌊mut@1, proj_loans (s@2 : i32)⌋
+  }
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@5 := &b
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  b -> ⌊mut@0⌋ ;
+  x -> &mut@1 (1: i32) ;
+  var@3 -> ⊥ : &'_ mut (std::boxed::Box<i32>) ;
+  x -> ⊥ : &'_ (i32) ;
+  var@5 -> ⊥ : &'_ (std::boxed::Box<i32>) ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : i32 ;
+  abs@0{parents={}}{regions={0}} {
+    &mut@0 (proj_borrows (s@0 : std::boxed::Box<i32> <: std::boxed::Box<i32>)),
+    ⌊mut@1, proj_loans (s@2 : i32)⌋
+  }
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  x := move core::ops::deref::Deref<Box<i32>>::deref(move var@5);
+  var@8 := copy *(x);
+  var@7 := move var@8 == 1: i32;
+  var@6 := ¬ move var@7;
+  assert(¬move var@6);
+  drop(b);
+  return
+]
+
+**Context**:
+# Ended regions: {0}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  b -> @shared_loan({2}, s@3 : std::boxed::Box<i32>) ;
+  x -> ⊥ : &'_ mut (i32) ;
+  var@3 -> ⊥ : &'_ mut (std::boxed::Box<i32>) ;
+  x -> ⊥ : &'_ (i32) ;
+  var@5 -> ⌊shared@2⌋ ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  x := move core::ops::deref::Deref<Box<i32>>::deref(move var@5)
+]
+
+**Context**:
+# Ended regions: {0}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  b -> @shared_loan({2}, s@3 : std::boxed::Box<i32>) ;
+  x -> ⊥ : &'_ mut (i32) ;
+  var@3 -> ⊥ : &'_ mut (std::boxed::Box<i32>) ;
+  x -> ⊥ : &'_ (i32) ;
+  var@5 -> ⌊shared@2⌋ ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_non_local_function_call:
+- fid:CfimAst.BoxDeref
+- type_params: [i32]
+- args: [move var@5]
+- dest: x
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {0}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  b -> @shared_loan({2}, s@3 : std::boxed::Box<i32>) ;
+  x -> ⊥ : &'_ mut (i32) ;
+  var@3 -> ⊥ : &'_ mut (std::boxed::Box<i32>) ;
+  x -> ⊥ : &'_ (i32) ;
+  var@5 -> ⌊shared@2⌋ ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : i32 ;
+}
+
+
+- op:
+move var@5
+
+[Debug] Value to move:
+⌊shared@2⌋
+[Debug] 
+**About to evaluate statement**: [
+  var@8 := copy *(x);
+  var@7 := move var@8 == 1: i32;
+  var@6 := ¬ move var@7;
+  assert(¬move var@6);
+  drop(b);
+  return
+]
+
+**Context**:
+# Ended regions: {0}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  b -> @shared_loan({2}, s@3 : std::boxed::Box<i32>) ;
+  x -> ⊥ : &'_ mut (i32) ;
+  var@3 -> ⊥ : &'_ mut (std::boxed::Box<i32>) ;
+  x -> s@4 : &r@1 (i32) ;
+  var@5 -> ⊥ : &'_ (std::boxed::Box<i32>) ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : i32 ;
+  abs@1{parents={}}{regions={1}} {
+    ⌊shared@2⌋,
+    proj_loans (s@4 : &r@1 (i32))
+  }
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@8 := copy *(x)
+]
+
+**Context**:
+# Ended regions: {0}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  b -> @shared_loan({2}, s@3 : std::boxed::Box<i32>) ;
+  x -> ⊥ : &'_ mut (i32) ;
+  var@3 -> ⊥ : &'_ mut (std::boxed::Box<i32>) ;
+  x -> s@4 : &r@1 (i32) ;
+  var@5 -> ⊥ : &'_ (std::boxed::Box<i32>) ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : i32 ;
+  abs@1{parents={}}{regions={1}} {
+    ⌊shared@2⌋,
+    proj_loans (s@4 : &r@1 (i32))
+  }
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {0}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  b -> @shared_loan({2}, s@3 : std::boxed::Box<i32>) ;
+  x -> ⊥ : &'_ mut (i32) ;
+  var@3 -> ⊥ : &'_ mut (std::boxed::Box<i32>) ;
+  x -> s@4 : &r@1 (i32) ;
+  var@5 -> ⊥ : &'_ (std::boxed::Box<i32>) ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : i32 ;
+  abs@1{parents={}}{regions={1}} {
+    ⌊shared@2⌋,
+    proj_loans (s@4 : &r@1 (i32))
+  }
+}
+
+
+- op:
+copy *(x)
+
+[Debug] Value to copy:
+s@5 : i32
+[Debug] 
+**About to evaluate statement**: [
+  var@7 := move var@8 == 1: i32;
+  var@6 := ¬ move var@7;
+  assert(¬move var@6);
+  drop(b);
+  return
+]
+
+**Context**:
+# Ended regions: {0}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  b -> @shared_loan({2}, s@3 : std::boxed::Box<i32>) ;
+  x -> ⊥ : &'_ mut (i32) ;
+  var@3 -> ⊥ : &'_ mut (std::boxed::Box<i32>) ;
+  x -> ⌊shared@3⌋ ;
+  var@5 -> ⊥ : &'_ (std::boxed::Box<i32>) ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> s@5 : i32 ;
+  abs@1{parents={}}{regions={1}} {
+    ⌊shared@2⌋,
+    @shared_loan({3}, s@5 : i32, proj_loans (s@5 : i32))
+  }
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@7 := move var@8 == 1: i32
+]
+
+**Context**:
+# Ended regions: {0}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  b -> @shared_loan({2}, s@3 : std::boxed::Box<i32>) ;
+  x -> ⊥ : &'_ mut (i32) ;
+  var@3 -> ⊥ : &'_ mut (std::boxed::Box<i32>) ;
+  x -> ⌊shared@3⌋ ;
+  var@5 -> ⊥ : &'_ (std::boxed::Box<i32>) ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> s@5 : i32 ;
+  abs@1{parents={}}{regions={1}} {
+    ⌊shared@2⌋,
+    @shared_loan({3}, s@5 : i32, proj_loans (s@5 : i32))
+  }
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {0}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  b -> @shared_loan({2}, s@3 : std::boxed::Box<i32>) ;
+  x -> ⊥ : &'_ mut (i32) ;
+  var@3 -> ⊥ : &'_ mut (std::boxed::Box<i32>) ;
+  x -> ⌊shared@3⌋ ;
+  var@5 -> ⊥ : &'_ (std::boxed::Box<i32>) ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> s@5 : i32 ;
+  abs@1{parents={}}{regions={1}} {
+    ⌊shared@2⌋,
+    @shared_loan({3}, s@5 : i32, proj_loans (s@5 : i32))
+  }
+}
+
+
+- op:
+move var@8
+
+[Debug] Value to move:
+s@5 : i32
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {0}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  b -> @shared_loan({2}, s@3 : std::boxed::Box<i32>) ;
+  x -> ⊥ : &'_ mut (i32) ;
+  var@3 -> ⊥ : &'_ mut (std::boxed::Box<i32>) ;
+  x -> ⌊shared@3⌋ ;
+  var@5 -> ⊥ : &'_ (std::boxed::Box<i32>) ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : i32 ;
+  abs@1{parents={}}{regions={1}} {
+    ⌊shared@2⌋,
+    @shared_loan({3}, s@5 : i32, proj_loans (s@5 : i32))
+  }
+}
+
+
+- op:
+1: i32
+
+[Debug] 
+**About to evaluate statement**: [
+  var@6 := ¬ move var@7;
+  assert(¬move var@6);
+  drop(b);
+  return
+]
+
+**Context**:
+# Ended regions: {0}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  b -> @shared_loan({2}, s@3 : std::boxed::Box<i32>) ;
+  x -> ⊥ : &'_ mut (i32) ;
+  var@3 -> ⊥ : &'_ mut (std::boxed::Box<i32>) ;
+  x -> ⌊shared@3⌋ ;
+  var@5 -> ⊥ : &'_ (std::boxed::Box<i32>) ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> s@6 : bool ;
+  var@8 -> ⊥ : i32 ;
+  abs@1{parents={}}{regions={1}} {
+    ⌊shared@2⌋,
+    @shared_loan({3}, s@5 : i32, proj_loans (s@5 : i32))
+  }
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@6 := ¬ move var@7
+]
+
+**Context**:
+# Ended regions: {0}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  b -> @shared_loan({2}, s@3 : std::boxed::Box<i32>) ;
+  x -> ⊥ : &'_ mut (i32) ;
+  var@3 -> ⊥ : &'_ mut (std::boxed::Box<i32>) ;
+  x -> ⌊shared@3⌋ ;
+  var@5 -> ⊥ : &'_ (std::boxed::Box<i32>) ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> s@6 : bool ;
+  var@8 -> ⊥ : i32 ;
+  abs@1{parents={}}{regions={1}} {
+    ⌊shared@2⌋,
+    @shared_loan({3}, s@5 : i32, proj_loans (s@5 : i32))
+  }
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {0}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  b -> @shared_loan({2}, s@3 : std::boxed::Box<i32>) ;
+  x -> ⊥ : &'_ mut (i32) ;
+  var@3 -> ⊥ : &'_ mut (std::boxed::Box<i32>) ;
+  x -> ⌊shared@3⌋ ;
+  var@5 -> ⊥ : &'_ (std::boxed::Box<i32>) ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> s@6 : bool ;
+  var@8 -> ⊥ : i32 ;
+  abs@1{parents={}}{regions={1}} {
+    ⌊shared@2⌋,
+    @shared_loan({3}, s@5 : i32, proj_loans (s@5 : i32))
+  }
+}
+
+
+- op:
+move var@7
+
+[Debug] Value to move:
+s@6 : bool
+[Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@6);
+  drop(b);
+  return
+]
+
+**Context**:
+# Ended regions: {0}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  b -> @shared_loan({2}, s@3 : std::boxed::Box<i32>) ;
+  x -> ⊥ : &'_ mut (i32) ;
+  var@3 -> ⊥ : &'_ mut (std::boxed::Box<i32>) ;
+  x -> ⌊shared@3⌋ ;
+  var@5 -> ⊥ : &'_ (std::boxed::Box<i32>) ;
+  var@6 -> s@7 : bool ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : i32 ;
+  abs@1{parents={}}{regions={1}} {
+    ⌊shared@2⌋,
+    @shared_loan({3}, s@5 : i32, proj_loans (s@5 : i32))
+  }
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@6)
+]
+
+**Context**:
+# Ended regions: {0}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  b -> @shared_loan({2}, s@3 : std::boxed::Box<i32>) ;
+  x -> ⊥ : &'_ mut (i32) ;
+  var@3 -> ⊥ : &'_ mut (std::boxed::Box<i32>) ;
+  x -> ⌊shared@3⌋ ;
+  var@5 -> ⊥ : &'_ (std::boxed::Box<i32>) ;
+  var@6 -> s@7 : bool ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : i32 ;
+  abs@1{parents={}}{regions={1}} {
+    ⌊shared@2⌋,
+    @shared_loan({3}, s@5 : i32, proj_loans (s@5 : i32))
+  }
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {0}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  b -> @shared_loan({2}, s@3 : std::boxed::Box<i32>) ;
+  x -> ⊥ : &'_ mut (i32) ;
+  var@3 -> ⊥ : &'_ mut (std::boxed::Box<i32>) ;
+  x -> ⌊shared@3⌋ ;
+  var@5 -> ⊥ : &'_ (std::boxed::Box<i32>) ;
+  var@6 -> true ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : i32 ;
+  abs@1{parents={}}{regions={1}} {
+    ⌊shared@2⌋,
+    @shared_loan({3}, s@5 : i32, proj_loans (s@5 : i32))
+  }
+}
+
+
+- op:
+move var@6
+
+[Debug] Value to move:
+true
+[Debug] 
+**About to evaluate statement**: [
+  drop(b);
+  return
+]
+
+**Context**:
+# Ended regions: {0}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  b -> @shared_loan({2}, s@3 : std::boxed::Box<i32>) ;
+  x -> ⊥ : &'_ mut (i32) ;
+  var@3 -> ⊥ : &'_ mut (std::boxed::Box<i32>) ;
+  x -> ⌊shared@3⌋ ;
+  var@5 -> ⊥ : &'_ (std::boxed::Box<i32>) ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : i32 ;
+  abs@1{parents={}}{regions={1}} {
+    ⌊shared@2⌋,
+    @shared_loan({3}, s@5 : i32, proj_loans (s@5 : i32))
+  }
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  drop(b)
+]
+
+**Context**:
+# Ended regions: {0}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  b -> @shared_loan({2}, s@3 : std::boxed::Box<i32>) ;
+  x -> ⊥ : &'_ mut (i32) ;
+  var@3 -> ⊥ : &'_ mut (std::boxed::Box<i32>) ;
+  x -> ⌊shared@3⌋ ;
+  var@5 -> ⊥ : &'_ (std::boxed::Box<i32>) ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : i32 ;
+  abs@1{parents={}}{regions={1}} {
+    ⌊shared@2⌋,
+    @shared_loan({3}, s@5 : i32, proj_loans (s@5 : i32))
+  }
+}
+
+
+
+[Debug] drop_value: place: b
+[Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {0, 1}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  b -> ⊥ : std::boxed::Box<i32> ;
+  x -> ⊥ : &'_ mut (i32) ;
+  var@3 -> ⊥ : &'_ mut (std::boxed::Box<i32>) ;
+  x -> ⊥ : &'_ (i32) ;
+  var@5 -> ⊥ : &'_ (std::boxed::Box<i32>) ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] test_function_symbolic: copy_int
+[Debug] 
+**About to evaluate statement**: [
+  var@0 := copy x;
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : i32 ;
+  x -> s@0 : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@0 := copy x
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : i32 ;
+  x -> s@0 : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : i32 ;
+  x -> s@0 : i32 ;
+}
+
+
+- op:
+copy x
+
+[Debug] Value to copy:
+s@0 : i32
+[Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> s@0 : i32 ;
+  x -> s@0 : i32 ;
+}
+
+
+
+[Debug] test_function_symbolic: test_copy_int
+[Debug] 
+**About to evaluate statement**: [
+  x := 0: i32;
+  px := &x;
+  var@4 := copy x;
+  y := move copy_int(move var@4);
+  var@7 := copy *(px);
+  var@8 := copy y;
+  var@6 := move var@7 == move var@8;
+  var@5 := ¬ move var@6;
+  assert(¬move var@5);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⊥ : i32 ;
+  px -> ⊥ : &'_ (i32) ;
+  y -> ⊥ : i32 ;
+  var@4 -> ⊥ : i32 ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> ⊥ : i32 ;
+  var@8 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  x := 0: i32
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⊥ : i32 ;
+  px -> ⊥ : &'_ (i32) ;
+  y -> ⊥ : i32 ;
+  var@4 -> ⊥ : i32 ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> ⊥ : i32 ;
+  var@8 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⊥ : i32 ;
+  px -> ⊥ : &'_ (i32) ;
+  y -> ⊥ : i32 ;
+  var@4 -> ⊥ : i32 ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> ⊥ : i32 ;
+  var@8 -> ⊥ : i32 ;
+}
+
+
+- op:
+0: i32
+
+[Debug] 
+**About to evaluate statement**: [
+  px := &x;
+  var@4 := copy x;
+  y := move copy_int(move var@4);
+  var@7 := copy *(px);
+  var@8 := copy y;
+  var@6 := move var@7 == move var@8;
+  var@5 := ¬ move var@6;
+  assert(¬move var@5);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  px -> ⊥ : &'_ (i32) ;
+  y -> ⊥ : i32 ;
+  var@4 -> ⊥ : i32 ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> ⊥ : i32 ;
+  var@8 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  px := &x
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  px -> ⊥ : &'_ (i32) ;
+  y -> ⊥ : i32 ;
+  var@4 -> ⊥ : i32 ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> ⊥ : i32 ;
+  var@8 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@4 := copy x;
+  y := move copy_int(move var@4);
+  var@7 := copy *(px);
+  var@8 := copy y;
+  var@6 := move var@7 == move var@8;
+  var@5 := ¬ move var@6;
+  assert(¬move var@5);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> @shared_loan({0}, 0: i32) ;
+  px -> ⌊shared@0⌋ ;
+  y -> ⊥ : i32 ;
+  var@4 -> ⊥ : i32 ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> ⊥ : i32 ;
+  var@8 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@4 := copy x
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> @shared_loan({0}, 0: i32) ;
+  px -> ⌊shared@0⌋ ;
+  y -> ⊥ : i32 ;
+  var@4 -> ⊥ : i32 ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> ⊥ : i32 ;
+  var@8 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> @shared_loan({0}, 0: i32) ;
+  px -> ⌊shared@0⌋ ;
+  y -> ⊥ : i32 ;
+  var@4 -> ⊥ : i32 ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> ⊥ : i32 ;
+  var@8 -> ⊥ : i32 ;
+}
+
+
+- op:
+copy x
+
+[Debug] Value to copy:
+@shared_loan({0}, 0: i32)
+[Debug] 
+**About to evaluate statement**: [
+  y := move copy_int(move var@4);
+  var@7 := copy *(px);
+  var@8 := copy y;
+  var@6 := move var@7 == move var@8;
+  var@5 := ¬ move var@6;
+  assert(¬move var@5);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> @shared_loan({0}, 0: i32) ;
+  px -> ⌊shared@0⌋ ;
+  y -> ⊥ : i32 ;
+  var@4 -> 0: i32 ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> ⊥ : i32 ;
+  var@8 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  y := move copy_int(move var@4)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> @shared_loan({0}, 0: i32) ;
+  px -> ⌊shared@0⌋ ;
+  y -> ⊥ : i32 ;
+  var@4 -> 0: i32 ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> ⊥ : i32 ;
+  var@8 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> @shared_loan({0}, 0: i32) ;
+  px -> ⌊shared@0⌋ ;
+  y -> ⊥ : i32 ;
+  var@4 -> 0: i32 ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> ⊥ : i32 ;
+  var@8 -> ⊥ : i32 ;
+}
+
+
+- op:
+move var@4
+
+[Debug] Value to move:
+0: i32
+[Debug] 
+**About to evaluate statement**: [
+  var@7 := copy *(px);
+  var@8 := copy y;
+  var@6 := move var@7 == move var@8;
+  var@5 := ¬ move var@6;
+  assert(¬move var@5);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> @shared_loan({0}, 0: i32) ;
+  px -> ⌊shared@0⌋ ;
+  y -> s@0 : i32 ;
+  var@4 -> ⊥ : i32 ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> ⊥ : i32 ;
+  var@8 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@7 := copy *(px)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> @shared_loan({0}, 0: i32) ;
+  px -> ⌊shared@0⌋ ;
+  y -> s@0 : i32 ;
+  var@4 -> ⊥ : i32 ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> ⊥ : i32 ;
+  var@8 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> @shared_loan({0}, 0: i32) ;
+  px -> ⌊shared@0⌋ ;
+  y -> s@0 : i32 ;
+  var@4 -> ⊥ : i32 ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> ⊥ : i32 ;
+  var@8 -> ⊥ : i32 ;
+}
+
+
+- op:
+copy *(px)
+
+[Debug] Value to copy:
+0: i32
+[Debug] 
+**About to evaluate statement**: [
+  var@8 := copy y;
+  var@6 := move var@7 == move var@8;
+  var@5 := ¬ move var@6;
+  assert(¬move var@5);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> @shared_loan({0}, 0: i32) ;
+  px -> ⌊shared@0⌋ ;
+  y -> s@0 : i32 ;
+  var@4 -> ⊥ : i32 ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> 0: i32 ;
+  var@8 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@8 := copy y
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> @shared_loan({0}, 0: i32) ;
+  px -> ⌊shared@0⌋ ;
+  y -> s@0 : i32 ;
+  var@4 -> ⊥ : i32 ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> 0: i32 ;
+  var@8 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> @shared_loan({0}, 0: i32) ;
+  px -> ⌊shared@0⌋ ;
+  y -> s@0 : i32 ;
+  var@4 -> ⊥ : i32 ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> 0: i32 ;
+  var@8 -> ⊥ : i32 ;
+}
+
+
+- op:
+copy y
+
+[Debug] Value to copy:
+s@0 : i32
+[Debug] 
+**About to evaluate statement**: [
+  var@6 := move var@7 == move var@8;
+  var@5 := ¬ move var@6;
+  assert(¬move var@5);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> @shared_loan({0}, 0: i32) ;
+  px -> ⌊shared@0⌋ ;
+  y -> s@0 : i32 ;
+  var@4 -> ⊥ : i32 ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> 0: i32 ;
+  var@8 -> s@0 : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@6 := move var@7 == move var@8
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> @shared_loan({0}, 0: i32) ;
+  px -> ⌊shared@0⌋ ;
+  y -> s@0 : i32 ;
+  var@4 -> ⊥ : i32 ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> 0: i32 ;
+  var@8 -> s@0 : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> @shared_loan({0}, 0: i32) ;
+  px -> ⌊shared@0⌋ ;
+  y -> s@0 : i32 ;
+  var@4 -> ⊥ : i32 ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> 0: i32 ;
+  var@8 -> s@0 : i32 ;
+}
+
+
+- op:
+move var@7
+
+[Debug] Value to move:
+0: i32
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> @shared_loan({0}, 0: i32) ;
+  px -> ⌊shared@0⌋ ;
+  y -> s@0 : i32 ;
+  var@4 -> ⊥ : i32 ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> ⊥ : i32 ;
+  var@8 -> s@0 : i32 ;
+}
+
+
+- op:
+move var@8
+
+[Debug] Value to move:
+s@0 : i32
+[Debug] 
+**About to evaluate statement**: [
+  var@5 := ¬ move var@6;
+  assert(¬move var@5);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> @shared_loan({0}, 0: i32) ;
+  px -> ⌊shared@0⌋ ;
+  y -> s@0 : i32 ;
+  var@4 -> ⊥ : i32 ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> s@1 : bool ;
+  var@7 -> ⊥ : i32 ;
+  var@8 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@5 := ¬ move var@6
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> @shared_loan({0}, 0: i32) ;
+  px -> ⌊shared@0⌋ ;
+  y -> s@0 : i32 ;
+  var@4 -> ⊥ : i32 ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> s@1 : bool ;
+  var@7 -> ⊥ : i32 ;
+  var@8 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> @shared_loan({0}, 0: i32) ;
+  px -> ⌊shared@0⌋ ;
+  y -> s@0 : i32 ;
+  var@4 -> ⊥ : i32 ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> s@1 : bool ;
+  var@7 -> ⊥ : i32 ;
+  var@8 -> ⊥ : i32 ;
+}
+
+
+- op:
+move var@6
+
+[Debug] Value to move:
+s@1 : bool
+[Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@5);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> @shared_loan({0}, 0: i32) ;
+  px -> ⌊shared@0⌋ ;
+  y -> s@0 : i32 ;
+  var@4 -> ⊥ : i32 ;
+  var@5 -> s@2 : bool ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> ⊥ : i32 ;
+  var@8 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@5)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> @shared_loan({0}, 0: i32) ;
+  px -> ⌊shared@0⌋ ;
+  y -> s@0 : i32 ;
+  var@4 -> ⊥ : i32 ;
+  var@5 -> s@2 : bool ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> ⊥ : i32 ;
+  var@8 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> @shared_loan({0}, 0: i32) ;
+  px -> ⌊shared@0⌋ ;
+  y -> s@0 : i32 ;
+  var@4 -> ⊥ : i32 ;
+  var@5 -> true ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> ⊥ : i32 ;
+  var@8 -> ⊥ : i32 ;
+}
+
+
+- op:
+move var@5
+
+[Debug] Value to move:
+true
+[Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> @shared_loan({0}, 0: i32) ;
+  px -> ⌊shared@0⌋ ;
+  y -> s@0 : i32 ;
+  var@4 -> ⊥ : i32 ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : bool ;
+  var@7 -> ⊥ : i32 ;
+  var@8 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] test_function_symbolic: is_cons
+[Debug] 
+**About to evaluate statement**: [
+  var@2 := discriminant(*(l));
+  switch (move var@2) {
+    0: isize => {
+      var@0 := true
+    }
+    1: isize => {
+      var@0 := false
+    }
+    _ => {
+      panic
+    }
+  };
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  abs@0{parents={}}{regions={0}} {
+    proj_loans (s@0 : &r@0 (test1::List<T>))
+  }
+  var@0 -> ⊥ : bool ;
+  l -> s@0 : &r@0 (test1::List<T>) ;
+  var@2 -> ⊥ : isize ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@2 := discriminant(*(l))
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  abs@0{parents={}}{regions={0}} {
+    proj_loans (s@0 : &r@0 (test1::List<T>))
+  }
+  var@0 -> ⊥ : bool ;
+  l -> s@0 : &r@0 (test1::List<T>) ;
+  var@2 -> ⊥ : isize ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  switch (move var@2) {
+    0: isize => {
+      var@0 := true
+    }
+    1: isize => {
+      var@0 := false
+    }
+    _ => {
+      panic
+    }
+  };
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  abs@0{parents={}}{regions={0}} {
+    @shared_loan({0}, test1::List::Cons { 0 = s@2 : T; 1 = s@3 : std::boxed::Box<test1::List<T>>; }, test1::List::Cons { 0 = proj_loans (s@2 : T); 1 = proj_loans (s@3 : std::boxed::Box<test1::List<T>>); })
+  }
+  var@0 -> ⊥ : bool ;
+  l -> ⌊shared@0⌋ ;
+  var@2 -> 0: isize ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  switch (move var@2) {
+    0: isize => {
+      var@0 := true
+    }
+    1: isize => {
+      var@0 := false
+    }
+    _ => {
+      panic
+    }
+  }
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  abs@0{parents={}}{regions={0}} {
+    @shared_loan({0}, test1::List::Cons { 0 = s@2 : T; 1 = s@3 : std::boxed::Box<test1::List<T>>; }, test1::List::Cons { 0 = proj_loans (s@2 : T); 1 = proj_loans (s@3 : std::boxed::Box<test1::List<T>>); })
+  }
+  var@0 -> ⊥ : bool ;
+  l -> ⌊shared@0⌋ ;
+  var@2 -> 0: isize ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  abs@0{parents={}}{regions={0}} {
+    @shared_loan({0}, test1::List::Cons { 0 = s@2 : T; 1 = s@3 : std::boxed::Box<test1::List<T>>; }, test1::List::Cons { 0 = proj_loans (s@2 : T); 1 = proj_loans (s@3 : std::boxed::Box<test1::List<T>>); })
+  }
+  var@0 -> ⊥ : bool ;
+  l -> ⌊shared@0⌋ ;
+  var@2 -> 0: isize ;
+}
+
+
+- op:
+move var@2
+
+[Debug] Value to move:
+0: isize
+[Debug] 
+**About to evaluate statement**: [
+  var@0 := true
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  abs@0{parents={}}{regions={0}} {
+    @shared_loan({0}, test1::List::Cons { 0 = s@2 : T; 1 = s@3 : std::boxed::Box<test1::List<T>>; }, test1::List::Cons { 0 = proj_loans (s@2 : T); 1 = proj_loans (s@3 : std::boxed::Box<test1::List<T>>); })
+  }
+  var@0 -> ⊥ : bool ;
+  l -> ⌊shared@0⌋ ;
+  var@2 -> ⊥ : isize ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  abs@0{parents={}}{regions={0}} {
+    @shared_loan({0}, test1::List::Cons { 0 = s@2 : T; 1 = s@3 : std::boxed::Box<test1::List<T>>; }, test1::List::Cons { 0 = proj_loans (s@2 : T); 1 = proj_loans (s@3 : std::boxed::Box<test1::List<T>>); })
+  }
+  var@0 -> ⊥ : bool ;
+  l -> ⌊shared@0⌋ ;
+  var@2 -> ⊥ : isize ;
+}
+
+
+- op:
+true
+
+[Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  abs@0{parents={}}{regions={0}} {
+    @shared_loan({0}, test1::List::Cons { 0 = s@2 : T; 1 = s@3 : std::boxed::Box<test1::List<T>>; }, test1::List::Cons { 0 = proj_loans (s@2 : T); 1 = proj_loans (s@3 : std::boxed::Box<test1::List<T>>); })
+  }
+  var@0 -> true ;
+  l -> ⌊shared@0⌋ ;
+  var@2 -> ⊥ : isize ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  switch (move var@2) {
+    0: isize => {
+      var@0 := true
+    }
+    1: isize => {
+      var@0 := false
+    }
+    _ => {
+      panic
+    }
+  };
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  abs@0{parents={}}{regions={0}} {
+    @shared_loan({0}, test1::List::Nil, test1::List::Nil)
+  }
+  var@0 -> ⊥ : bool ;
+  l -> ⌊shared@0⌋ ;
+  var@2 -> 1: isize ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  switch (move var@2) {
+    0: isize => {
+      var@0 := true
+    }
+    1: isize => {
+      var@0 := false
+    }
+    _ => {
+      panic
+    }
+  }
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  abs@0{parents={}}{regions={0}} {
+    @shared_loan({0}, test1::List::Nil, test1::List::Nil)
+  }
+  var@0 -> ⊥ : bool ;
+  l -> ⌊shared@0⌋ ;
+  var@2 -> 1: isize ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  abs@0{parents={}}{regions={0}} {
+    @shared_loan({0}, test1::List::Nil, test1::List::Nil)
+  }
+  var@0 -> ⊥ : bool ;
+  l -> ⌊shared@0⌋ ;
+  var@2 -> 1: isize ;
+}
+
+
+- op:
+move var@2
+
+[Debug] Value to move:
+1: isize
+[Debug] 
+**About to evaluate statement**: [
+  var@0 := false
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  abs@0{parents={}}{regions={0}} {
+    @shared_loan({0}, test1::List::Nil, test1::List::Nil)
+  }
+  var@0 -> ⊥ : bool ;
+  l -> ⌊shared@0⌋ ;
+  var@2 -> ⊥ : isize ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  abs@0{parents={}}{regions={0}} {
+    @shared_loan({0}, test1::List::Nil, test1::List::Nil)
+  }
+  var@0 -> ⊥ : bool ;
+  l -> ⌊shared@0⌋ ;
+  var@2 -> ⊥ : isize ;
+}
+
+
+- op:
+false
+
+[Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  abs@0{parents={}}{regions={0}} {
+    @shared_loan({0}, test1::List::Nil, test1::List::Nil)
+  }
+  var@0 -> false ;
+  l -> ⌊shared@0⌋ ;
+  var@2 -> ⊥ : isize ;
+}
+
+
+
+[Debug] test_function_symbolic: test_is_cons
+[Debug] 
+**About to evaluate statement**: [
+  set_discriminant(var@3, 1);
+  var@2 := move alloc::boxed::Box<test1::List<i32>>::new(move var@3);
+  (l as test1::List::Cons).0 := 0: i32;
+  (l as test1::List::Cons).1 := move var@2;
+  set_discriminant(l, 0);
+  var@7 := &l;
+  var@6 := copy var@7;
+  var@5 := move is_cons<i32>(move var@6);
+  var@4 := ¬ move var@5;
+  assert(¬move var@4);
+  drop(l);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  var@4 -> ⊥ : bool ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : &'_ (test1::List<i32>) ;
+  var@7 -> ⊥ : &'_ (test1::List<i32>) ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  set_discriminant(var@3, 1)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  var@4 -> ⊥ : bool ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : &'_ (test1::List<i32>) ;
+  var@7 -> ⊥ : &'_ (test1::List<i32>) ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@2 := move alloc::boxed::Box<test1::List<i32>>::new(move var@3);
+  (l as test1::List::Cons).0 := 0: i32;
+  (l as test1::List::Cons).1 := move var@2;
+  set_discriminant(l, 0);
+  var@7 := &l;
+  var@6 := copy var@7;
+  var@5 := move is_cons<i32>(move var@6);
+  var@4 := ¬ move var@5;
+  assert(¬move var@4);
+  drop(l);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> test1::List::Nil ;
+  var@4 -> ⊥ : bool ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : &'_ (test1::List<i32>) ;
+  var@7 -> ⊥ : &'_ (test1::List<i32>) ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@2 := move alloc::boxed::Box<test1::List<i32>>::new(move var@3)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> test1::List::Nil ;
+  var@4 -> ⊥ : bool ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : &'_ (test1::List<i32>) ;
+  var@7 -> ⊥ : &'_ (test1::List<i32>) ;
+}
+
+
+
+[Debug] eval_non_local_function_call:
+- fid:CfimAst.BoxNew
+- type_params: [test1::List<i32>]
+- args: [move var@3]
+- dest: var@2
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> test1::List::Nil ;
+  var@4 -> ⊥ : bool ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : &'_ (test1::List<i32>) ;
+  var@7 -> ⊥ : &'_ (test1::List<i32>) ;
+}
+
+
+- op:
+move var@3
+
+[Debug] Value to move:
+test1::List::Nil
+[Debug] 
+**About to evaluate statement**: [
+  (l as test1::List::Cons).0 := 0: i32;
+  (l as test1::List::Cons).1 := move var@2;
+  set_discriminant(l, 0);
+  var@7 := &l;
+  var@6 := copy var@7;
+  var@5 := move is_cons<i32>(move var@6);
+  var@4 := ¬ move var@5;
+  assert(¬move var@4);
+  drop(l);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> s@0 : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  var@4 -> ⊥ : bool ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : &'_ (test1::List<i32>) ;
+  var@7 -> ⊥ : &'_ (test1::List<i32>) ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  (l as test1::List::Cons).0 := 0: i32
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> s@0 : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  var@4 -> ⊥ : bool ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : &'_ (test1::List<i32>) ;
+  var@7 -> ⊥ : &'_ (test1::List<i32>) ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> s@0 : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  var@4 -> ⊥ : bool ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : &'_ (test1::List<i32>) ;
+  var@7 -> ⊥ : &'_ (test1::List<i32>) ;
+}
+
+
+- op:
+0: i32
+
+[Debug] expand_bottom_value_from_projection:
+pe: (Expressions.Field ((Expressions.ProjAdt (1, (Some 0))), 0))
+ty: (Types.Adt ((Types.AdtId 1), [], [(Types.Integer Types.I32)]))
+[Debug] 
+**About to evaluate statement**: [
+  (l as test1::List::Cons).1 := move var@2;
+  set_discriminant(l, 0);
+  var@7 := &l;
+  var@6 := copy var@7;
+  var@5 := move is_cons<i32>(move var@6);
+  var@4 := ¬ move var@5;
+  assert(¬move var@4);
+  drop(l);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> test1::List::Cons { 0 = 0: i32; 1 = ⊥ : std::boxed::Box<test1::List<i32>>; } ;
+  var@2 -> s@0 : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  var@4 -> ⊥ : bool ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : &'_ (test1::List<i32>) ;
+  var@7 -> ⊥ : &'_ (test1::List<i32>) ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  (l as test1::List::Cons).1 := move var@2
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> test1::List::Cons { 0 = 0: i32; 1 = ⊥ : std::boxed::Box<test1::List<i32>>; } ;
+  var@2 -> s@0 : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  var@4 -> ⊥ : bool ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : &'_ (test1::List<i32>) ;
+  var@7 -> ⊥ : &'_ (test1::List<i32>) ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> test1::List::Cons { 0 = 0: i32; 1 = ⊥ : std::boxed::Box<test1::List<i32>>; } ;
+  var@2 -> s@0 : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  var@4 -> ⊥ : bool ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : &'_ (test1::List<i32>) ;
+  var@7 -> ⊥ : &'_ (test1::List<i32>) ;
+}
+
+
+- op:
+move var@2
+
+[Debug] Value to move:
+s@0 : std::boxed::Box<test1::List<i32>>
+[Debug] 
+**About to evaluate statement**: [
+  set_discriminant(l, 0);
+  var@7 := &l;
+  var@6 := copy var@7;
+  var@5 := move is_cons<i32>(move var@6);
+  var@4 := ¬ move var@5;
+  assert(¬move var@4);
+  drop(l);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> test1::List::Cons { 0 = 0: i32; 1 = s@0 : std::boxed::Box<test1::List<i32>>; } ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  var@4 -> ⊥ : bool ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : &'_ (test1::List<i32>) ;
+  var@7 -> ⊥ : &'_ (test1::List<i32>) ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  set_discriminant(l, 0)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> test1::List::Cons { 0 = 0: i32; 1 = s@0 : std::boxed::Box<test1::List<i32>>; } ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  var@4 -> ⊥ : bool ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : &'_ (test1::List<i32>) ;
+  var@7 -> ⊥ : &'_ (test1::List<i32>) ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@7 := &l;
+  var@6 := copy var@7;
+  var@5 := move is_cons<i32>(move var@6);
+  var@4 := ¬ move var@5;
+  assert(¬move var@4);
+  drop(l);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> test1::List::Cons { 0 = 0: i32; 1 = s@0 : std::boxed::Box<test1::List<i32>>; } ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  var@4 -> ⊥ : bool ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : &'_ (test1::List<i32>) ;
+  var@7 -> ⊥ : &'_ (test1::List<i32>) ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@7 := &l
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> test1::List::Cons { 0 = 0: i32; 1 = s@0 : std::boxed::Box<test1::List<i32>>; } ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  var@4 -> ⊥ : bool ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : &'_ (test1::List<i32>) ;
+  var@7 -> ⊥ : &'_ (test1::List<i32>) ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@6 := copy var@7;
+  var@5 := move is_cons<i32>(move var@6);
+  var@4 := ¬ move var@5;
+  assert(¬move var@4);
+  drop(l);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> @shared_loan({0}, test1::List::Cons { 0 = 0: i32; 1 = s@0 : std::boxed::Box<test1::List<i32>>; }) ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  var@4 -> ⊥ : bool ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : &'_ (test1::List<i32>) ;
+  var@7 -> ⌊shared@0⌋ ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@6 := copy var@7
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> @shared_loan({0}, test1::List::Cons { 0 = 0: i32; 1 = s@0 : std::boxed::Box<test1::List<i32>>; }) ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  var@4 -> ⊥ : bool ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : &'_ (test1::List<i32>) ;
+  var@7 -> ⌊shared@0⌋ ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> @shared_loan({0}, test1::List::Cons { 0 = 0: i32; 1 = s@0 : std::boxed::Box<test1::List<i32>>; }) ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  var@4 -> ⊥ : bool ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : &'_ (test1::List<i32>) ;
+  var@7 -> ⌊shared@0⌋ ;
+}
+
+
+- op:
+copy var@7
+
+[Debug] Value to copy:
+⌊shared@0⌋
+[Debug] 
+**About to evaluate statement**: [
+  var@5 := move is_cons<i32>(move var@6);
+  var@4 := ¬ move var@5;
+  assert(¬move var@4);
+  drop(l);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> @shared_loan({0, 1}, test1::List::Cons { 0 = 0: i32; 1 = s@0 : std::boxed::Box<test1::List<i32>>; }) ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  var@4 -> ⊥ : bool ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⌊shared@1⌋ ;
+  var@7 -> ⌊shared@0⌋ ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@5 := move is_cons<i32>(move var@6)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> @shared_loan({0, 1}, test1::List::Cons { 0 = 0: i32; 1 = s@0 : std::boxed::Box<test1::List<i32>>; }) ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  var@4 -> ⊥ : bool ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⌊shared@1⌋ ;
+  var@7 -> ⌊shared@0⌋ ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> @shared_loan({0, 1}, test1::List::Cons { 0 = 0: i32; 1 = s@0 : std::boxed::Box<test1::List<i32>>; }) ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  var@4 -> ⊥ : bool ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⌊shared@1⌋ ;
+  var@7 -> ⌊shared@0⌋ ;
+}
+
+
+- op:
+move var@6
+
+[Debug] Value to move:
+⌊shared@1⌋
+[Debug] 
+**About to evaluate statement**: [
+  var@4 := ¬ move var@5;
+  assert(¬move var@4);
+  drop(l);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> @shared_loan({0, 1}, test1::List::Cons { 0 = 0: i32; 1 = s@0 : std::boxed::Box<test1::List<i32>>; }) ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  var@4 -> ⊥ : bool ;
+  var@5 -> s@1 : bool ;
+  var@6 -> ⊥ : &'_ (test1::List<i32>) ;
+  var@7 -> ⌊shared@0⌋ ;
+  abs@0{parents={}}{regions={0}} {
+    ⌊shared@1⌋,
+    proj_loans (s@1 : bool)
+  }
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@4 := ¬ move var@5
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> @shared_loan({0, 1}, test1::List::Cons { 0 = 0: i32; 1 = s@0 : std::boxed::Box<test1::List<i32>>; }) ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  var@4 -> ⊥ : bool ;
+  var@5 -> s@1 : bool ;
+  var@6 -> ⊥ : &'_ (test1::List<i32>) ;
+  var@7 -> ⌊shared@0⌋ ;
+  abs@0{parents={}}{regions={0}} {
+    ⌊shared@1⌋,
+    proj_loans (s@1 : bool)
+  }
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> @shared_loan({0, 1}, test1::List::Cons { 0 = 0: i32; 1 = s@0 : std::boxed::Box<test1::List<i32>>; }) ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  var@4 -> ⊥ : bool ;
+  var@5 -> s@1 : bool ;
+  var@6 -> ⊥ : &'_ (test1::List<i32>) ;
+  var@7 -> ⌊shared@0⌋ ;
+  abs@0{parents={}}{regions={0}} {
+    ⌊shared@1⌋,
+    proj_loans (s@1 : bool)
+  }
+}
+
+
+- op:
+move var@5
+
+[Debug] Value to move:
+s@1 : bool
+[Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@4);
+  drop(l);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> @shared_loan({0, 1}, test1::List::Cons { 0 = 0: i32; 1 = s@0 : std::boxed::Box<test1::List<i32>>; }) ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  var@4 -> s@2 : bool ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : &'_ (test1::List<i32>) ;
+  var@7 -> ⌊shared@0⌋ ;
+  abs@0{parents={}}{regions={0}} {
+    ⌊shared@1⌋,
+    proj_loans (s@1 : bool)
+  }
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@4)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> @shared_loan({0, 1}, test1::List::Cons { 0 = 0: i32; 1 = s@0 : std::boxed::Box<test1::List<i32>>; }) ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  var@4 -> s@2 : bool ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : &'_ (test1::List<i32>) ;
+  var@7 -> ⌊shared@0⌋ ;
+  abs@0{parents={}}{regions={0}} {
+    ⌊shared@1⌋,
+    proj_loans (s@1 : bool)
+  }
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> @shared_loan({0, 1}, test1::List::Cons { 0 = 0: i32; 1 = s@0 : std::boxed::Box<test1::List<i32>>; }) ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  var@4 -> true ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : &'_ (test1::List<i32>) ;
+  var@7 -> ⌊shared@0⌋ ;
+  abs@0{parents={}}{regions={0}} {
+    ⌊shared@1⌋,
+    proj_loans (s@1 : bool)
+  }
+}
+
+
+- op:
+move var@4
+
+[Debug] Value to move:
+true
+[Debug] 
+**About to evaluate statement**: [
+  drop(l);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> @shared_loan({0, 1}, test1::List::Cons { 0 = 0: i32; 1 = s@0 : std::boxed::Box<test1::List<i32>>; }) ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  var@4 -> ⊥ : bool ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : &'_ (test1::List<i32>) ;
+  var@7 -> ⌊shared@0⌋ ;
+  abs@0{parents={}}{regions={0}} {
+    ⌊shared@1⌋,
+    proj_loans (s@1 : bool)
+  }
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  drop(l)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> @shared_loan({0, 1}, test1::List::Cons { 0 = 0: i32; 1 = s@0 : std::boxed::Box<test1::List<i32>>; }) ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  var@4 -> ⊥ : bool ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : &'_ (test1::List<i32>) ;
+  var@7 -> ⌊shared@0⌋ ;
+  abs@0{parents={}}{regions={0}} {
+    ⌊shared@1⌋,
+    proj_loans (s@1 : bool)
+  }
+}
+
+
+
+[Debug] drop_value: place: l
+[Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {0}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  var@4 -> ⊥ : bool ;
+  var@5 -> ⊥ : bool ;
+  var@6 -> ⊥ : &'_ (test1::List<i32>) ;
+  var@7 -> ⊥ : &'_ (test1::List<i32>) ;
+}
+
+
+
+[Debug] test_function_symbolic: split_list
+[Debug] 
+**About to evaluate statement**: [
+  var@8 := false;
+  var@7 := false;
+  var@7 := true;
+  var@8 := true;
+  var@2 := discriminant(l);
+  switch (move var@2) {
+    0: isize => {
+      var@8 := false;
+      hd := move (l as test1::List::Cons).0;
+      var@7 := false;
+      tl := move (l as test1::List::Cons).1;
+      var@5 := move hd;
+      var@6 := move deref_box(tl);
+      (var@0).0 := move var@5;
+      (var@0).1 := move var@6;
+      var@9 := move alloc::alloc::box_free<test1::List<T>>(move tl);
+      return
+    }
+    _ => {
+      panic
+    }
+  }
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : (T, test1::List<T>) ;
+  l -> s@0 : test1::List<T> ;
+  var@2 -> ⊥ : isize ;
+  hd -> ⊥ : T ;
+  tl -> ⊥ : std::boxed::Box<test1::List<T>> ;
+  var@5 -> ⊥ : T ;
+  var@6 -> ⊥ : test1::List<T> ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : () ;
+  var@10 -> ⊥ : isize ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@8 := false
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : (T, test1::List<T>) ;
+  l -> s@0 : test1::List<T> ;
+  var@2 -> ⊥ : isize ;
+  hd -> ⊥ : T ;
+  tl -> ⊥ : std::boxed::Box<test1::List<T>> ;
+  var@5 -> ⊥ : T ;
+  var@6 -> ⊥ : test1::List<T> ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : () ;
+  var@10 -> ⊥ : isize ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : (T, test1::List<T>) ;
+  l -> s@0 : test1::List<T> ;
+  var@2 -> ⊥ : isize ;
+  hd -> ⊥ : T ;
+  tl -> ⊥ : std::boxed::Box<test1::List<T>> ;
+  var@5 -> ⊥ : T ;
+  var@6 -> ⊥ : test1::List<T> ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : () ;
+  var@10 -> ⊥ : isize ;
+}
+
+
+- op:
+false
+
+[Debug] 
+**About to evaluate statement**: [
+  var@7 := false;
+  var@7 := true;
+  var@8 := true;
+  var@2 := discriminant(l);
+  switch (move var@2) {
+    0: isize => {
+      var@8 := false;
+      hd := move (l as test1::List::Cons).0;
+      var@7 := false;
+      tl := move (l as test1::List::Cons).1;
+      var@5 := move hd;
+      var@6 := move deref_box(tl);
+      (var@0).0 := move var@5;
+      (var@0).1 := move var@6;
+      var@9 := move alloc::alloc::box_free<test1::List<T>>(move tl);
+      return
+    }
+    _ => {
+      panic
+    }
+  }
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : (T, test1::List<T>) ;
+  l -> s@0 : test1::List<T> ;
+  var@2 -> ⊥ : isize ;
+  hd -> ⊥ : T ;
+  tl -> ⊥ : std::boxed::Box<test1::List<T>> ;
+  var@5 -> ⊥ : T ;
+  var@6 -> ⊥ : test1::List<T> ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> false ;
+  var@9 -> ⊥ : () ;
+  var@10 -> ⊥ : isize ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@7 := false
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : (T, test1::List<T>) ;
+  l -> s@0 : test1::List<T> ;
+  var@2 -> ⊥ : isize ;
+  hd -> ⊥ : T ;
+  tl -> ⊥ : std::boxed::Box<test1::List<T>> ;
+  var@5 -> ⊥ : T ;
+  var@6 -> ⊥ : test1::List<T> ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> false ;
+  var@9 -> ⊥ : () ;
+  var@10 -> ⊥ : isize ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : (T, test1::List<T>) ;
+  l -> s@0 : test1::List<T> ;
+  var@2 -> ⊥ : isize ;
+  hd -> ⊥ : T ;
+  tl -> ⊥ : std::boxed::Box<test1::List<T>> ;
+  var@5 -> ⊥ : T ;
+  var@6 -> ⊥ : test1::List<T> ;
+  var@7 -> ⊥ : bool ;
+  var@8 -> false ;
+  var@9 -> ⊥ : () ;
+  var@10 -> ⊥ : isize ;
+}
+
+
+- op:
+false
+
+[Debug] 
+**About to evaluate statement**: [
+  var@7 := true;
+  var@8 := true;
+  var@2 := discriminant(l);
+  switch (move var@2) {
+    0: isize => {
+      var@8 := false;
+      hd := move (l as test1::List::Cons).0;
+      var@7 := false;
+      tl := move (l as test1::List::Cons).1;
+      var@5 := move hd;
+      var@6 := move deref_box(tl);
+      (var@0).0 := move var@5;
+      (var@0).1 := move var@6;
+      var@9 := move alloc::alloc::box_free<test1::List<T>>(move tl);
+      return
+    }
+    _ => {
+      panic
+    }
+  }
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : (T, test1::List<T>) ;
+  l -> s@0 : test1::List<T> ;
+  var@2 -> ⊥ : isize ;
+  hd -> ⊥ : T ;
+  tl -> ⊥ : std::boxed::Box<test1::List<T>> ;
+  var@5 -> ⊥ : T ;
+  var@6 -> ⊥ : test1::List<T> ;
+  var@7 -> false ;
+  var@8 -> false ;
+  var@9 -> ⊥ : () ;
+  var@10 -> ⊥ : isize ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@7 := true
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : (T, test1::List<T>) ;
+  l -> s@0 : test1::List<T> ;
+  var@2 -> ⊥ : isize ;
+  hd -> ⊥ : T ;
+  tl -> ⊥ : std::boxed::Box<test1::List<T>> ;
+  var@5 -> ⊥ : T ;
+  var@6 -> ⊥ : test1::List<T> ;
+  var@7 -> false ;
+  var@8 -> false ;
+  var@9 -> ⊥ : () ;
+  var@10 -> ⊥ : isize ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : (T, test1::List<T>) ;
+  l -> s@0 : test1::List<T> ;
+  var@2 -> ⊥ : isize ;
+  hd -> ⊥ : T ;
+  tl -> ⊥ : std::boxed::Box<test1::List<T>> ;
+  var@5 -> ⊥ : T ;
+  var@6 -> ⊥ : test1::List<T> ;
+  var@7 -> false ;
+  var@8 -> false ;
+  var@9 -> ⊥ : () ;
+  var@10 -> ⊥ : isize ;
+}
+
+
+- op:
+true
+
+[Debug] 
+**About to evaluate statement**: [
+  var@8 := true;
+  var@2 := discriminant(l);
+  switch (move var@2) {
+    0: isize => {
+      var@8 := false;
+      hd := move (l as test1::List::Cons).0;
+      var@7 := false;
+      tl := move (l as test1::List::Cons).1;
+      var@5 := move hd;
+      var@6 := move deref_box(tl);
+      (var@0).0 := move var@5;
+      (var@0).1 := move var@6;
+      var@9 := move alloc::alloc::box_free<test1::List<T>>(move tl);
+      return
+    }
+    _ => {
+      panic
+    }
+  }
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : (T, test1::List<T>) ;
+  l -> s@0 : test1::List<T> ;
+  var@2 -> ⊥ : isize ;
+  hd -> ⊥ : T ;
+  tl -> ⊥ : std::boxed::Box<test1::List<T>> ;
+  var@5 -> ⊥ : T ;
+  var@6 -> ⊥ : test1::List<T> ;
+  var@7 -> true ;
+  var@8 -> false ;
+  var@9 -> ⊥ : () ;
+  var@10 -> ⊥ : isize ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@8 := true
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : (T, test1::List<T>) ;
+  l -> s@0 : test1::List<T> ;
+  var@2 -> ⊥ : isize ;
+  hd -> ⊥ : T ;
+  tl -> ⊥ : std::boxed::Box<test1::List<T>> ;
+  var@5 -> ⊥ : T ;
+  var@6 -> ⊥ : test1::List<T> ;
+  var@7 -> true ;
+  var@8 -> false ;
+  var@9 -> ⊥ : () ;
+  var@10 -> ⊥ : isize ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : (T, test1::List<T>) ;
+  l -> s@0 : test1::List<T> ;
+  var@2 -> ⊥ : isize ;
+  hd -> ⊥ : T ;
+  tl -> ⊥ : std::boxed::Box<test1::List<T>> ;
+  var@5 -> ⊥ : T ;
+  var@6 -> ⊥ : test1::List<T> ;
+  var@7 -> true ;
+  var@8 -> false ;
+  var@9 -> ⊥ : () ;
+  var@10 -> ⊥ : isize ;
+}
+
+
+- op:
+true
+
+[Debug] 
+**About to evaluate statement**: [
+  var@2 := discriminant(l);
+  switch (move var@2) {
+    0: isize => {
+      var@8 := false;
+      hd := move (l as test1::List::Cons).0;
+      var@7 := false;
+      tl := move (l as test1::List::Cons).1;
+      var@5 := move hd;
+      var@6 := move deref_box(tl);
+      (var@0).0 := move var@5;
+      (var@0).1 := move var@6;
+      var@9 := move alloc::alloc::box_free<test1::List<T>>(move tl);
+      return
+    }
+    _ => {
+      panic
+    }
+  }
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : (T, test1::List<T>) ;
+  l -> s@0 : test1::List<T> ;
+  var@2 -> ⊥ : isize ;
+  hd -> ⊥ : T ;
+  tl -> ⊥ : std::boxed::Box<test1::List<T>> ;
+  var@5 -> ⊥ : T ;
+  var@6 -> ⊥ : test1::List<T> ;
+  var@7 -> true ;
+  var@8 -> true ;
+  var@9 -> ⊥ : () ;
+  var@10 -> ⊥ : isize ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@2 := discriminant(l)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : (T, test1::List<T>) ;
+  l -> s@0 : test1::List<T> ;
+  var@2 -> ⊥ : isize ;
+  hd -> ⊥ : T ;
+  tl -> ⊥ : std::boxed::Box<test1::List<T>> ;
+  var@5 -> ⊥ : T ;
+  var@6 -> ⊥ : test1::List<T> ;
+  var@7 -> true ;
+  var@8 -> true ;
+  var@9 -> ⊥ : () ;
+  var@10 -> ⊥ : isize ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  switch (move var@2) {
+    0: isize => {
+      var@8 := false;
+      hd := move (l as test1::List::Cons).0;
+      var@7 := false;
+      tl := move (l as test1::List::Cons).1;
+      var@5 := move hd;
+      var@6 := move deref_box(tl);
+      (var@0).0 := move var@5;
+      (var@0).1 := move var@6;
+      var@9 := move alloc::alloc::box_free<test1::List<T>>(move tl);
+      return
+    }
+    _ => {
+      panic
+    }
+  }
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : (T, test1::List<T>) ;
+  l -> test1::List::Cons { 0 = s@1 : T; 1 = s@2 : std::boxed::Box<test1::List<T>>; } ;
+  var@2 -> 0: isize ;
+  hd -> ⊥ : T ;
+  tl -> ⊥ : std::boxed::Box<test1::List<T>> ;
+  var@5 -> ⊥ : T ;
+  var@6 -> ⊥ : test1::List<T> ;
+  var@7 -> true ;
+  var@8 -> true ;
+  var@9 -> ⊥ : () ;
+  var@10 -> ⊥ : isize ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : (T, test1::List<T>) ;
+  l -> test1::List::Cons { 0 = s@1 : T; 1 = s@2 : std::boxed::Box<test1::List<T>>; } ;
+  var@2 -> 0: isize ;
+  hd -> ⊥ : T ;
+  tl -> ⊥ : std::boxed::Box<test1::List<T>> ;
+  var@5 -> ⊥ : T ;
+  var@6 -> ⊥ : test1::List<T> ;
+  var@7 -> true ;
+  var@8 -> true ;
+  var@9 -> ⊥ : () ;
+  var@10 -> ⊥ : isize ;
+}
+
+
+- op:
+move var@2
+
+[Debug] Value to move:
+0: isize
+[Debug] 
+**About to evaluate statement**: [
+  var@8 := false;
+  hd := move (l as test1::List::Cons).0;
+  var@7 := false;
+  tl := move (l as test1::List::Cons).1;
+  var@5 := move hd;
+  var@6 := move deref_box(tl);
+  (var@0).0 := move var@5;
+  (var@0).1 := move var@6;
+  var@9 := move alloc::alloc::box_free<test1::List<T>>(move tl);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : (T, test1::List<T>) ;
+  l -> test1::List::Cons { 0 = s@1 : T; 1 = s@2 : std::boxed::Box<test1::List<T>>; } ;
+  var@2 -> ⊥ : isize ;
+  hd -> ⊥ : T ;
+  tl -> ⊥ : std::boxed::Box<test1::List<T>> ;
+  var@5 -> ⊥ : T ;
+  var@6 -> ⊥ : test1::List<T> ;
+  var@7 -> true ;
+  var@8 -> true ;
+  var@9 -> ⊥ : () ;
+  var@10 -> ⊥ : isize ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@8 := false
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : (T, test1::List<T>) ;
+  l -> test1::List::Cons { 0 = s@1 : T; 1 = s@2 : std::boxed::Box<test1::List<T>>; } ;
+  var@2 -> ⊥ : isize ;
+  hd -> ⊥ : T ;
+  tl -> ⊥ : std::boxed::Box<test1::List<T>> ;
+  var@5 -> ⊥ : T ;
+  var@6 -> ⊥ : test1::List<T> ;
+  var@7 -> true ;
+  var@8 -> true ;
+  var@9 -> ⊥ : () ;
+  var@10 -> ⊥ : isize ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : (T, test1::List<T>) ;
+  l -> test1::List::Cons { 0 = s@1 : T; 1 = s@2 : std::boxed::Box<test1::List<T>>; } ;
+  var@2 -> ⊥ : isize ;
+  hd -> ⊥ : T ;
+  tl -> ⊥ : std::boxed::Box<test1::List<T>> ;
+  var@5 -> ⊥ : T ;
+  var@6 -> ⊥ : test1::List<T> ;
+  var@7 -> true ;
+  var@8 -> true ;
+  var@9 -> ⊥ : () ;
+  var@10 -> ⊥ : isize ;
+}
+
+
+- op:
+false
+
+[Debug] 
+**About to evaluate statement**: [
+  hd := move (l as test1::List::Cons).0;
+  var@7 := false;
+  tl := move (l as test1::List::Cons).1;
+  var@5 := move hd;
+  var@6 := move deref_box(tl);
+  (var@0).0 := move var@5;
+  (var@0).1 := move var@6;
+  var@9 := move alloc::alloc::box_free<test1::List<T>>(move tl);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : (T, test1::List<T>) ;
+  l -> test1::List::Cons { 0 = s@1 : T; 1 = s@2 : std::boxed::Box<test1::List<T>>; } ;
+  var@2 -> ⊥ : isize ;
+  hd -> ⊥ : T ;
+  tl -> ⊥ : std::boxed::Box<test1::List<T>> ;
+  var@5 -> ⊥ : T ;
+  var@6 -> ⊥ : test1::List<T> ;
+  var@7 -> true ;
+  var@8 -> false ;
+  var@9 -> ⊥ : () ;
+  var@10 -> ⊥ : isize ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  hd := move (l as test1::List::Cons).0
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : (T, test1::List<T>) ;
+  l -> test1::List::Cons { 0 = s@1 : T; 1 = s@2 : std::boxed::Box<test1::List<T>>; } ;
+  var@2 -> ⊥ : isize ;
+  hd -> ⊥ : T ;
+  tl -> ⊥ : std::boxed::Box<test1::List<T>> ;
+  var@5 -> ⊥ : T ;
+  var@6 -> ⊥ : test1::List<T> ;
+  var@7 -> true ;
+  var@8 -> false ;
+  var@9 -> ⊥ : () ;
+  var@10 -> ⊥ : isize ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : (T, test1::List<T>) ;
+  l -> test1::List::Cons { 0 = s@1 : T; 1 = s@2 : std::boxed::Box<test1::List<T>>; } ;
+  var@2 -> ⊥ : isize ;
+  hd -> ⊥ : T ;
+  tl -> ⊥ : std::boxed::Box<test1::List<T>> ;
+  var@5 -> ⊥ : T ;
+  var@6 -> ⊥ : test1::List<T> ;
+  var@7 -> true ;
+  var@8 -> false ;
+  var@9 -> ⊥ : () ;
+  var@10 -> ⊥ : isize ;
+}
+
+
+- op:
+move (l as test1::List::Cons).0
+
+[Debug] Value to move:
+s@1 : T
+[Debug] 
+**About to evaluate statement**: [
+  var@7 := false;
+  tl := move (l as test1::List::Cons).1;
+  var@5 := move hd;
+  var@6 := move deref_box(tl);
+  (var@0).0 := move var@5;
+  (var@0).1 := move var@6;
+  var@9 := move alloc::alloc::box_free<test1::List<T>>(move tl);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : (T, test1::List<T>) ;
+  l -> test1::List::Cons { 0 = ⊥ : T; 1 = s@2 : std::boxed::Box<test1::List<T>>; } ;
+  var@2 -> ⊥ : isize ;
+  hd -> s@1 : T ;
+  tl -> ⊥ : std::boxed::Box<test1::List<T>> ;
+  var@5 -> ⊥ : T ;
+  var@6 -> ⊥ : test1::List<T> ;
+  var@7 -> true ;
+  var@8 -> false ;
+  var@9 -> ⊥ : () ;
+  var@10 -> ⊥ : isize ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@7 := false
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : (T, test1::List<T>) ;
+  l -> test1::List::Cons { 0 = ⊥ : T; 1 = s@2 : std::boxed::Box<test1::List<T>>; } ;
+  var@2 -> ⊥ : isize ;
+  hd -> s@1 : T ;
+  tl -> ⊥ : std::boxed::Box<test1::List<T>> ;
+  var@5 -> ⊥ : T ;
+  var@6 -> ⊥ : test1::List<T> ;
+  var@7 -> true ;
+  var@8 -> false ;
+  var@9 -> ⊥ : () ;
+  var@10 -> ⊥ : isize ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : (T, test1::List<T>) ;
+  l -> test1::List::Cons { 0 = ⊥ : T; 1 = s@2 : std::boxed::Box<test1::List<T>>; } ;
+  var@2 -> ⊥ : isize ;
+  hd -> s@1 : T ;
+  tl -> ⊥ : std::boxed::Box<test1::List<T>> ;
+  var@5 -> ⊥ : T ;
+  var@6 -> ⊥ : test1::List<T> ;
+  var@7 -> true ;
+  var@8 -> false ;
+  var@9 -> ⊥ : () ;
+  var@10 -> ⊥ : isize ;
+}
+
+
+- op:
+false
+
+[Debug] 
+**About to evaluate statement**: [
+  tl := move (l as test1::List::Cons).1;
+  var@5 := move hd;
+  var@6 := move deref_box(tl);
+  (var@0).0 := move var@5;
+  (var@0).1 := move var@6;
+  var@9 := move alloc::alloc::box_free<test1::List<T>>(move tl);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : (T, test1::List<T>) ;
+  l -> test1::List::Cons { 0 = ⊥ : T; 1 = s@2 : std::boxed::Box<test1::List<T>>; } ;
+  var@2 -> ⊥ : isize ;
+  hd -> s@1 : T ;
+  tl -> ⊥ : std::boxed::Box<test1::List<T>> ;
+  var@5 -> ⊥ : T ;
+  var@6 -> ⊥ : test1::List<T> ;
+  var@7 -> false ;
+  var@8 -> false ;
+  var@9 -> ⊥ : () ;
+  var@10 -> ⊥ : isize ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  tl := move (l as test1::List::Cons).1
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : (T, test1::List<T>) ;
+  l -> test1::List::Cons { 0 = ⊥ : T; 1 = s@2 : std::boxed::Box<test1::List<T>>; } ;
+  var@2 -> ⊥ : isize ;
+  hd -> s@1 : T ;
+  tl -> ⊥ : std::boxed::Box<test1::List<T>> ;
+  var@5 -> ⊥ : T ;
+  var@6 -> ⊥ : test1::List<T> ;
+  var@7 -> false ;
+  var@8 -> false ;
+  var@9 -> ⊥ : () ;
+  var@10 -> ⊥ : isize ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : (T, test1::List<T>) ;
+  l -> test1::List::Cons { 0 = ⊥ : T; 1 = s@2 : std::boxed::Box<test1::List<T>>; } ;
+  var@2 -> ⊥ : isize ;
+  hd -> s@1 : T ;
+  tl -> ⊥ : std::boxed::Box<test1::List<T>> ;
+  var@5 -> ⊥ : T ;
+  var@6 -> ⊥ : test1::List<T> ;
+  var@7 -> false ;
+  var@8 -> false ;
+  var@9 -> ⊥ : () ;
+  var@10 -> ⊥ : isize ;
+}
+
+
+- op:
+move (l as test1::List::Cons).1
+
+[Debug] Value to move:
+s@2 : std::boxed::Box<test1::List<T>>
+[Debug] 
+**About to evaluate statement**: [
+  var@5 := move hd;
+  var@6 := move deref_box(tl);
+  (var@0).0 := move var@5;
+  (var@0).1 := move var@6;
+  var@9 := move alloc::alloc::box_free<test1::List<T>>(move tl);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : (T, test1::List<T>) ;
+  l -> test1::List::Cons { 0 = ⊥ : T; 1 = ⊥ : std::boxed::Box<test1::List<T>>; } ;
+  var@2 -> ⊥ : isize ;
+  hd -> s@1 : T ;
+  tl -> s@2 : std::boxed::Box<test1::List<T>> ;
+  var@5 -> ⊥ : T ;
+  var@6 -> ⊥ : test1::List<T> ;
+  var@7 -> false ;
+  var@8 -> false ;
+  var@9 -> ⊥ : () ;
+  var@10 -> ⊥ : isize ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@5 := move hd
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : (T, test1::List<T>) ;
+  l -> test1::List::Cons { 0 = ⊥ : T; 1 = ⊥ : std::boxed::Box<test1::List<T>>; } ;
+  var@2 -> ⊥ : isize ;
+  hd -> s@1 : T ;
+  tl -> s@2 : std::boxed::Box<test1::List<T>> ;
+  var@5 -> ⊥ : T ;
+  var@6 -> ⊥ : test1::List<T> ;
+  var@7 -> false ;
+  var@8 -> false ;
+  var@9 -> ⊥ : () ;
+  var@10 -> ⊥ : isize ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : (T, test1::List<T>) ;
+  l -> test1::List::Cons { 0 = ⊥ : T; 1 = ⊥ : std::boxed::Box<test1::List<T>>; } ;
+  var@2 -> ⊥ : isize ;
+  hd -> s@1 : T ;
+  tl -> s@2 : std::boxed::Box<test1::List<T>> ;
+  var@5 -> ⊥ : T ;
+  var@6 -> ⊥ : test1::List<T> ;
+  var@7 -> false ;
+  var@8 -> false ;
+  var@9 -> ⊥ : () ;
+  var@10 -> ⊥ : isize ;
+}
+
+
+- op:
+move hd
+
+[Debug] Value to move:
+s@1 : T
+[Debug] 
+**About to evaluate statement**: [
+  var@6 := move deref_box(tl);
+  (var@0).0 := move var@5;
+  (var@0).1 := move var@6;
+  var@9 := move alloc::alloc::box_free<test1::List<T>>(move tl);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : (T, test1::List<T>) ;
+  l -> test1::List::Cons { 0 = ⊥ : T; 1 = ⊥ : std::boxed::Box<test1::List<T>>; } ;
+  var@2 -> ⊥ : isize ;
+  hd -> ⊥ : T ;
+  tl -> s@2 : std::boxed::Box<test1::List<T>> ;
+  var@5 -> s@1 : T ;
+  var@6 -> ⊥ : test1::List<T> ;
+  var@7 -> false ;
+  var@8 -> false ;
+  var@9 -> ⊥ : () ;
+  var@10 -> ⊥ : isize ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@6 := move deref_box(tl)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : (T, test1::List<T>) ;
+  l -> test1::List::Cons { 0 = ⊥ : T; 1 = ⊥ : std::boxed::Box<test1::List<T>>; } ;
+  var@2 -> ⊥ : isize ;
+  hd -> ⊥ : T ;
+  tl -> s@2 : std::boxed::Box<test1::List<T>> ;
+  var@5 -> s@1 : T ;
+  var@6 -> ⊥ : test1::List<T> ;
+  var@7 -> false ;
+  var@8 -> false ;
+  var@9 -> ⊥ : () ;
+  var@10 -> ⊥ : isize ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : (T, test1::List<T>) ;
+  l -> test1::List::Cons { 0 = ⊥ : T; 1 = ⊥ : std::boxed::Box<test1::List<T>>; } ;
+  var@2 -> ⊥ : isize ;
+  hd -> ⊥ : T ;
+  tl -> s@2 : std::boxed::Box<test1::List<T>> ;
+  var@5 -> s@1 : T ;
+  var@6 -> ⊥ : test1::List<T> ;
+  var@7 -> false ;
+  var@8 -> false ;
+  var@9 -> ⊥ : () ;
+  var@10 -> ⊥ : isize ;
+}
+
+
+- op:
+move deref_box(tl)
+
+[Debug] Value to move:
+s@3 : test1::List<T>
+[Debug] 
+**About to evaluate statement**: [
+  (var@0).0 := move var@5;
+  (var@0).1 := move var@6;
+  var@9 := move alloc::alloc::box_free<test1::List<T>>(move tl);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : (T, test1::List<T>) ;
+  l -> test1::List::Cons { 0 = ⊥ : T; 1 = ⊥ : std::boxed::Box<test1::List<T>>; } ;
+  var@2 -> ⊥ : isize ;
+  hd -> ⊥ : T ;
+  tl -> @Box(⊥ : test1::List<T>) ;
+  var@5 -> s@1 : T ;
+  var@6 -> s@3 : test1::List<T> ;
+  var@7 -> false ;
+  var@8 -> false ;
+  var@9 -> ⊥ : () ;
+  var@10 -> ⊥ : isize ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  (var@0).0 := move var@5
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : (T, test1::List<T>) ;
+  l -> test1::List::Cons { 0 = ⊥ : T; 1 = ⊥ : std::boxed::Box<test1::List<T>>; } ;
+  var@2 -> ⊥ : isize ;
+  hd -> ⊥ : T ;
+  tl -> @Box(⊥ : test1::List<T>) ;
+  var@5 -> s@1 : T ;
+  var@6 -> s@3 : test1::List<T> ;
+  var@7 -> false ;
+  var@8 -> false ;
+  var@9 -> ⊥ : () ;
+  var@10 -> ⊥ : isize ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : (T, test1::List<T>) ;
+  l -> test1::List::Cons { 0 = ⊥ : T; 1 = ⊥ : std::boxed::Box<test1::List<T>>; } ;
+  var@2 -> ⊥ : isize ;
+  hd -> ⊥ : T ;
+  tl -> @Box(⊥ : test1::List<T>) ;
+  var@5 -> s@1 : T ;
+  var@6 -> s@3 : test1::List<T> ;
+  var@7 -> false ;
+  var@8 -> false ;
+  var@9 -> ⊥ : () ;
+  var@10 -> ⊥ : isize ;
+}
+
+
+- op:
+move var@5
+
+[Debug] Value to move:
+s@1 : T
+[Debug] expand_bottom_value_from_projection:
+pe: (Expressions.Field ((Expressions.ProjTuple 2), 0))
+ty: (Types.Adt (Types.Tuple, [],
+   [(Types.TypeVar 0); (Types.Adt ((Types.AdtId 1), [], [(Types.TypeVar 0)]))
+     ]
+   ))
+[Debug] 
+**About to evaluate statement**: [
+  (var@0).1 := move var@6;
+  var@9 := move alloc::alloc::box_free<test1::List<T>>(move tl);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> (s@1 : T, ⊥ : test1::List<T>) ;
+  l -> test1::List::Cons { 0 = ⊥ : T; 1 = ⊥ : std::boxed::Box<test1::List<T>>; } ;
+  var@2 -> ⊥ : isize ;
+  hd -> ⊥ : T ;
+  tl -> @Box(⊥ : test1::List<T>) ;
+  var@5 -> ⊥ : T ;
+  var@6 -> s@3 : test1::List<T> ;
+  var@7 -> false ;
+  var@8 -> false ;
+  var@9 -> ⊥ : () ;
+  var@10 -> ⊥ : isize ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  (var@0).1 := move var@6
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> (s@1 : T, ⊥ : test1::List<T>) ;
+  l -> test1::List::Cons { 0 = ⊥ : T; 1 = ⊥ : std::boxed::Box<test1::List<T>>; } ;
+  var@2 -> ⊥ : isize ;
+  hd -> ⊥ : T ;
+  tl -> @Box(⊥ : test1::List<T>) ;
+  var@5 -> ⊥ : T ;
+  var@6 -> s@3 : test1::List<T> ;
+  var@7 -> false ;
+  var@8 -> false ;
+  var@9 -> ⊥ : () ;
+  var@10 -> ⊥ : isize ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> (s@1 : T, ⊥ : test1::List<T>) ;
+  l -> test1::List::Cons { 0 = ⊥ : T; 1 = ⊥ : std::boxed::Box<test1::List<T>>; } ;
+  var@2 -> ⊥ : isize ;
+  hd -> ⊥ : T ;
+  tl -> @Box(⊥ : test1::List<T>) ;
+  var@5 -> ⊥ : T ;
+  var@6 -> s@3 : test1::List<T> ;
+  var@7 -> false ;
+  var@8 -> false ;
+  var@9 -> ⊥ : () ;
+  var@10 -> ⊥ : isize ;
+}
+
+
+- op:
+move var@6
+
+[Debug] Value to move:
+s@3 : test1::List<T>
+[Debug] 
+**About to evaluate statement**: [
+  var@9 := move alloc::alloc::box_free<test1::List<T>>(move tl);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> (s@1 : T, s@3 : test1::List<T>) ;
+  l -> test1::List::Cons { 0 = ⊥ : T; 1 = ⊥ : std::boxed::Box<test1::List<T>>; } ;
+  var@2 -> ⊥ : isize ;
+  hd -> ⊥ : T ;
+  tl -> @Box(⊥ : test1::List<T>) ;
+  var@5 -> ⊥ : T ;
+  var@6 -> ⊥ : test1::List<T> ;
+  var@7 -> false ;
+  var@8 -> false ;
+  var@9 -> ⊥ : () ;
+  var@10 -> ⊥ : isize ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@9 := move alloc::alloc::box_free<test1::List<T>>(move tl)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> (s@1 : T, s@3 : test1::List<T>) ;
+  l -> test1::List::Cons { 0 = ⊥ : T; 1 = ⊥ : std::boxed::Box<test1::List<T>>; } ;
+  var@2 -> ⊥ : isize ;
+  hd -> ⊥ : T ;
+  tl -> @Box(⊥ : test1::List<T>) ;
+  var@5 -> ⊥ : T ;
+  var@6 -> ⊥ : test1::List<T> ;
+  var@7 -> false ;
+  var@8 -> false ;
+  var@9 -> ⊥ : () ;
+  var@10 -> ⊥ : isize ;
+}
+
+
+
+[Debug] eval_non_local_function_call:
+- fid:CfimAst.BoxFree
+- type_params: [test1::List<T>]
+- args: [move tl]
+- dest: var@9
+[Debug] drop_value: place: tl
+[Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> (s@1 : T, s@3 : test1::List<T>) ;
+  l -> test1::List::Cons { 0 = ⊥ : T; 1 = ⊥ : std::boxed::Box<test1::List<T>>; } ;
+  var@2 -> ⊥ : isize ;
+  hd -> ⊥ : T ;
+  tl -> ⊥ : std::boxed::Box<test1::List<T>> ;
+  var@5 -> ⊥ : T ;
+  var@6 -> ⊥ : test1::List<T> ;
+  var@7 -> false ;
+  var@8 -> false ;
+  var@9 -> () ;
+  var@10 -> ⊥ : isize ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  switch (move var@2) {
+    0: isize => {
+      var@8 := false;
+      hd := move (l as test1::List::Cons).0;
+      var@7 := false;
+      tl := move (l as test1::List::Cons).1;
+      var@5 := move hd;
+      var@6 := move deref_box(tl);
+      (var@0).0 := move var@5;
+      (var@0).1 := move var@6;
+      var@9 := move alloc::alloc::box_free<test1::List<T>>(move tl);
+      return
+    }
+    _ => {
+      panic
+    }
+  }
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : (T, test1::List<T>) ;
+  l -> test1::List::Nil ;
+  var@2 -> 1: isize ;
+  hd -> ⊥ : T ;
+  tl -> ⊥ : std::boxed::Box<test1::List<T>> ;
+  var@5 -> ⊥ : T ;
+  var@6 -> ⊥ : test1::List<T> ;
+  var@7 -> true ;
+  var@8 -> true ;
+  var@9 -> ⊥ : () ;
+  var@10 -> ⊥ : isize ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : (T, test1::List<T>) ;
+  l -> test1::List::Nil ;
+  var@2 -> 1: isize ;
+  hd -> ⊥ : T ;
+  tl -> ⊥ : std::boxed::Box<test1::List<T>> ;
+  var@5 -> ⊥ : T ;
+  var@6 -> ⊥ : test1::List<T> ;
+  var@7 -> true ;
+  var@8 -> true ;
+  var@9 -> ⊥ : () ;
+  var@10 -> ⊥ : isize ;
+}
+
+
+- op:
+move var@2
+
+[Debug] Value to move:
+1: isize
+[Debug] 
+**About to evaluate statement**: [
+  panic
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : (T, test1::List<T>) ;
+  l -> test1::List::Nil ;
+  var@2 -> ⊥ : isize ;
+  hd -> ⊥ : T ;
+  tl -> ⊥ : std::boxed::Box<test1::List<T>> ;
+  var@5 -> ⊥ : T ;
+  var@6 -> ⊥ : test1::List<T> ;
+  var@7 -> true ;
+  var@8 -> true ;
+  var@9 -> ⊥ : () ;
+  var@10 -> ⊥ : isize ;
+}
+
+
+
+[Debug] test_function_symbolic: test_split_list
+[Debug] 
+**About to evaluate statement**: [
+  set_discriminant(var@3, 1);
+  var@2 := move alloc::boxed::Box<test1::List<i32>>::new(move var@3);
+  (l as test1::List::Cons).0 := 0: i32;
+  (l as test1::List::Cons).1 := move var@2;
+  set_discriminant(l, 0);
+  var@7 := move l;
+  var@6 := move split_list<i32>(move var@7);
+  hd := copy (var@6).0;
+  tl := move (var@6).1;
+  var@10 := copy hd;
+  var@9 := move var@10 == 0: i32;
+  var@8 := ¬ move var@9;
+  assert(¬move var@8);
+  drop(tl);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  hd -> ⊥ : i32 ;
+  tl -> ⊥ : test1::List<i32> ;
+  var@6 -> ⊥ : (i32, test1::List<i32>) ;
+  var@7 -> ⊥ : test1::List<i32> ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : bool ;
+  var@10 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  set_discriminant(var@3, 1)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  hd -> ⊥ : i32 ;
+  tl -> ⊥ : test1::List<i32> ;
+  var@6 -> ⊥ : (i32, test1::List<i32>) ;
+  var@7 -> ⊥ : test1::List<i32> ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : bool ;
+  var@10 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@2 := move alloc::boxed::Box<test1::List<i32>>::new(move var@3);
+  (l as test1::List::Cons).0 := 0: i32;
+  (l as test1::List::Cons).1 := move var@2;
+  set_discriminant(l, 0);
+  var@7 := move l;
+  var@6 := move split_list<i32>(move var@7);
+  hd := copy (var@6).0;
+  tl := move (var@6).1;
+  var@10 := copy hd;
+  var@9 := move var@10 == 0: i32;
+  var@8 := ¬ move var@9;
+  assert(¬move var@8);
+  drop(tl);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> test1::List::Nil ;
+  hd -> ⊥ : i32 ;
+  tl -> ⊥ : test1::List<i32> ;
+  var@6 -> ⊥ : (i32, test1::List<i32>) ;
+  var@7 -> ⊥ : test1::List<i32> ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : bool ;
+  var@10 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@2 := move alloc::boxed::Box<test1::List<i32>>::new(move var@3)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> test1::List::Nil ;
+  hd -> ⊥ : i32 ;
+  tl -> ⊥ : test1::List<i32> ;
+  var@6 -> ⊥ : (i32, test1::List<i32>) ;
+  var@7 -> ⊥ : test1::List<i32> ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : bool ;
+  var@10 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_non_local_function_call:
+- fid:CfimAst.BoxNew
+- type_params: [test1::List<i32>]
+- args: [move var@3]
+- dest: var@2
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> test1::List::Nil ;
+  hd -> ⊥ : i32 ;
+  tl -> ⊥ : test1::List<i32> ;
+  var@6 -> ⊥ : (i32, test1::List<i32>) ;
+  var@7 -> ⊥ : test1::List<i32> ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : bool ;
+  var@10 -> ⊥ : i32 ;
+}
+
+
+- op:
+move var@3
+
+[Debug] Value to move:
+test1::List::Nil
+[Debug] 
+**About to evaluate statement**: [
+  (l as test1::List::Cons).0 := 0: i32;
+  (l as test1::List::Cons).1 := move var@2;
+  set_discriminant(l, 0);
+  var@7 := move l;
+  var@6 := move split_list<i32>(move var@7);
+  hd := copy (var@6).0;
+  tl := move (var@6).1;
+  var@10 := copy hd;
+  var@9 := move var@10 == 0: i32;
+  var@8 := ¬ move var@9;
+  assert(¬move var@8);
+  drop(tl);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> s@0 : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  hd -> ⊥ : i32 ;
+  tl -> ⊥ : test1::List<i32> ;
+  var@6 -> ⊥ : (i32, test1::List<i32>) ;
+  var@7 -> ⊥ : test1::List<i32> ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : bool ;
+  var@10 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  (l as test1::List::Cons).0 := 0: i32
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> s@0 : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  hd -> ⊥ : i32 ;
+  tl -> ⊥ : test1::List<i32> ;
+  var@6 -> ⊥ : (i32, test1::List<i32>) ;
+  var@7 -> ⊥ : test1::List<i32> ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : bool ;
+  var@10 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> s@0 : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  hd -> ⊥ : i32 ;
+  tl -> ⊥ : test1::List<i32> ;
+  var@6 -> ⊥ : (i32, test1::List<i32>) ;
+  var@7 -> ⊥ : test1::List<i32> ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : bool ;
+  var@10 -> ⊥ : i32 ;
+}
+
+
+- op:
+0: i32
+
+[Debug] expand_bottom_value_from_projection:
+pe: (Expressions.Field ((Expressions.ProjAdt (1, (Some 0))), 0))
+ty: (Types.Adt ((Types.AdtId 1), [], [(Types.Integer Types.I32)]))
+[Debug] 
+**About to evaluate statement**: [
+  (l as test1::List::Cons).1 := move var@2;
+  set_discriminant(l, 0);
+  var@7 := move l;
+  var@6 := move split_list<i32>(move var@7);
+  hd := copy (var@6).0;
+  tl := move (var@6).1;
+  var@10 := copy hd;
+  var@9 := move var@10 == 0: i32;
+  var@8 := ¬ move var@9;
+  assert(¬move var@8);
+  drop(tl);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> test1::List::Cons { 0 = 0: i32; 1 = ⊥ : std::boxed::Box<test1::List<i32>>; } ;
+  var@2 -> s@0 : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  hd -> ⊥ : i32 ;
+  tl -> ⊥ : test1::List<i32> ;
+  var@6 -> ⊥ : (i32, test1::List<i32>) ;
+  var@7 -> ⊥ : test1::List<i32> ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : bool ;
+  var@10 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  (l as test1::List::Cons).1 := move var@2
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> test1::List::Cons { 0 = 0: i32; 1 = ⊥ : std::boxed::Box<test1::List<i32>>; } ;
+  var@2 -> s@0 : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  hd -> ⊥ : i32 ;
+  tl -> ⊥ : test1::List<i32> ;
+  var@6 -> ⊥ : (i32, test1::List<i32>) ;
+  var@7 -> ⊥ : test1::List<i32> ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : bool ;
+  var@10 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> test1::List::Cons { 0 = 0: i32; 1 = ⊥ : std::boxed::Box<test1::List<i32>>; } ;
+  var@2 -> s@0 : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  hd -> ⊥ : i32 ;
+  tl -> ⊥ : test1::List<i32> ;
+  var@6 -> ⊥ : (i32, test1::List<i32>) ;
+  var@7 -> ⊥ : test1::List<i32> ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : bool ;
+  var@10 -> ⊥ : i32 ;
+}
+
+
+- op:
+move var@2
+
+[Debug] Value to move:
+s@0 : std::boxed::Box<test1::List<i32>>
+[Debug] 
+**About to evaluate statement**: [
+  set_discriminant(l, 0);
+  var@7 := move l;
+  var@6 := move split_list<i32>(move var@7);
+  hd := copy (var@6).0;
+  tl := move (var@6).1;
+  var@10 := copy hd;
+  var@9 := move var@10 == 0: i32;
+  var@8 := ¬ move var@9;
+  assert(¬move var@8);
+  drop(tl);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> test1::List::Cons { 0 = 0: i32; 1 = s@0 : std::boxed::Box<test1::List<i32>>; } ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  hd -> ⊥ : i32 ;
+  tl -> ⊥ : test1::List<i32> ;
+  var@6 -> ⊥ : (i32, test1::List<i32>) ;
+  var@7 -> ⊥ : test1::List<i32> ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : bool ;
+  var@10 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  set_discriminant(l, 0)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> test1::List::Cons { 0 = 0: i32; 1 = s@0 : std::boxed::Box<test1::List<i32>>; } ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  hd -> ⊥ : i32 ;
+  tl -> ⊥ : test1::List<i32> ;
+  var@6 -> ⊥ : (i32, test1::List<i32>) ;
+  var@7 -> ⊥ : test1::List<i32> ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : bool ;
+  var@10 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@7 := move l;
+  var@6 := move split_list<i32>(move var@7);
+  hd := copy (var@6).0;
+  tl := move (var@6).1;
+  var@10 := copy hd;
+  var@9 := move var@10 == 0: i32;
+  var@8 := ¬ move var@9;
+  assert(¬move var@8);
+  drop(tl);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> test1::List::Cons { 0 = 0: i32; 1 = s@0 : std::boxed::Box<test1::List<i32>>; } ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  hd -> ⊥ : i32 ;
+  tl -> ⊥ : test1::List<i32> ;
+  var@6 -> ⊥ : (i32, test1::List<i32>) ;
+  var@7 -> ⊥ : test1::List<i32> ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : bool ;
+  var@10 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@7 := move l
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> test1::List::Cons { 0 = 0: i32; 1 = s@0 : std::boxed::Box<test1::List<i32>>; } ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  hd -> ⊥ : i32 ;
+  tl -> ⊥ : test1::List<i32> ;
+  var@6 -> ⊥ : (i32, test1::List<i32>) ;
+  var@7 -> ⊥ : test1::List<i32> ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : bool ;
+  var@10 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> test1::List::Cons { 0 = 0: i32; 1 = s@0 : std::boxed::Box<test1::List<i32>>; } ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  hd -> ⊥ : i32 ;
+  tl -> ⊥ : test1::List<i32> ;
+  var@6 -> ⊥ : (i32, test1::List<i32>) ;
+  var@7 -> ⊥ : test1::List<i32> ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : bool ;
+  var@10 -> ⊥ : i32 ;
+}
+
+
+- op:
+move l
+
+[Debug] Value to move:
+test1::List::Cons { 0 = 0: i32; 1 = s@0 : std::boxed::Box<test1::List<i32>>; }
+[Debug] 
+**About to evaluate statement**: [
+  var@6 := move split_list<i32>(move var@7);
+  hd := copy (var@6).0;
+  tl := move (var@6).1;
+  var@10 := copy hd;
+  var@9 := move var@10 == 0: i32;
+  var@8 := ¬ move var@9;
+  assert(¬move var@8);
+  drop(tl);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  hd -> ⊥ : i32 ;
+  tl -> ⊥ : test1::List<i32> ;
+  var@6 -> ⊥ : (i32, test1::List<i32>) ;
+  var@7 -> test1::List::Cons { 0 = 0: i32; 1 = s@0 : std::boxed::Box<test1::List<i32>>; } ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : bool ;
+  var@10 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@6 := move split_list<i32>(move var@7)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  hd -> ⊥ : i32 ;
+  tl -> ⊥ : test1::List<i32> ;
+  var@6 -> ⊥ : (i32, test1::List<i32>) ;
+  var@7 -> test1::List::Cons { 0 = 0: i32; 1 = s@0 : std::boxed::Box<test1::List<i32>>; } ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : bool ;
+  var@10 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  hd -> ⊥ : i32 ;
+  tl -> ⊥ : test1::List<i32> ;
+  var@6 -> ⊥ : (i32, test1::List<i32>) ;
+  var@7 -> test1::List::Cons { 0 = 0: i32; 1 = s@0 : std::boxed::Box<test1::List<i32>>; } ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : bool ;
+  var@10 -> ⊥ : i32 ;
+}
+
+
+- op:
+move var@7
+
+[Debug] Value to move:
+test1::List::Cons { 0 = 0: i32; 1 = s@0 : std::boxed::Box<test1::List<i32>>; }
+[Debug] 
+**About to evaluate statement**: [
+  hd := copy (var@6).0;
+  tl := move (var@6).1;
+  var@10 := copy hd;
+  var@9 := move var@10 == 0: i32;
+  var@8 := ¬ move var@9;
+  assert(¬move var@8);
+  drop(tl);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  hd -> ⊥ : i32 ;
+  tl -> ⊥ : test1::List<i32> ;
+  var@6 -> s@1 : (i32, test1::List<i32>) ;
+  var@7 -> ⊥ : test1::List<i32> ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : bool ;
+  var@10 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  hd := copy (var@6).0
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  hd -> ⊥ : i32 ;
+  tl -> ⊥ : test1::List<i32> ;
+  var@6 -> s@1 : (i32, test1::List<i32>) ;
+  var@7 -> ⊥ : test1::List<i32> ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : bool ;
+  var@10 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  hd -> ⊥ : i32 ;
+  tl -> ⊥ : test1::List<i32> ;
+  var@6 -> s@1 : (i32, test1::List<i32>) ;
+  var@7 -> ⊥ : test1::List<i32> ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : bool ;
+  var@10 -> ⊥ : i32 ;
+}
+
+
+- op:
+copy (var@6).0
+
+[Debug] Value to copy:
+s@2 : i32
+[Debug] 
+**About to evaluate statement**: [
+  tl := move (var@6).1;
+  var@10 := copy hd;
+  var@9 := move var@10 == 0: i32;
+  var@8 := ¬ move var@9;
+  assert(¬move var@8);
+  drop(tl);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  hd -> s@2 : i32 ;
+  tl -> ⊥ : test1::List<i32> ;
+  var@6 -> (s@2 : i32, s@3 : test1::List<i32>) ;
+  var@7 -> ⊥ : test1::List<i32> ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : bool ;
+  var@10 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  tl := move (var@6).1
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  hd -> s@2 : i32 ;
+  tl -> ⊥ : test1::List<i32> ;
+  var@6 -> (s@2 : i32, s@3 : test1::List<i32>) ;
+  var@7 -> ⊥ : test1::List<i32> ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : bool ;
+  var@10 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  hd -> s@2 : i32 ;
+  tl -> ⊥ : test1::List<i32> ;
+  var@6 -> (s@2 : i32, s@3 : test1::List<i32>) ;
+  var@7 -> ⊥ : test1::List<i32> ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : bool ;
+  var@10 -> ⊥ : i32 ;
+}
+
+
+- op:
+move (var@6).1
+
+[Debug] Value to move:
+s@3 : test1::List<i32>
+[Debug] 
+**About to evaluate statement**: [
+  var@10 := copy hd;
+  var@9 := move var@10 == 0: i32;
+  var@8 := ¬ move var@9;
+  assert(¬move var@8);
+  drop(tl);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  hd -> s@2 : i32 ;
+  tl -> s@3 : test1::List<i32> ;
+  var@6 -> (s@2 : i32, ⊥ : test1::List<i32>) ;
+  var@7 -> ⊥ : test1::List<i32> ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : bool ;
+  var@10 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@10 := copy hd
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  hd -> s@2 : i32 ;
+  tl -> s@3 : test1::List<i32> ;
+  var@6 -> (s@2 : i32, ⊥ : test1::List<i32>) ;
+  var@7 -> ⊥ : test1::List<i32> ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : bool ;
+  var@10 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  hd -> s@2 : i32 ;
+  tl -> s@3 : test1::List<i32> ;
+  var@6 -> (s@2 : i32, ⊥ : test1::List<i32>) ;
+  var@7 -> ⊥ : test1::List<i32> ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : bool ;
+  var@10 -> ⊥ : i32 ;
+}
+
+
+- op:
+copy hd
+
+[Debug] Value to copy:
+s@2 : i32
+[Debug] 
+**About to evaluate statement**: [
+  var@9 := move var@10 == 0: i32;
+  var@8 := ¬ move var@9;
+  assert(¬move var@8);
+  drop(tl);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  hd -> s@2 : i32 ;
+  tl -> s@3 : test1::List<i32> ;
+  var@6 -> (s@2 : i32, ⊥ : test1::List<i32>) ;
+  var@7 -> ⊥ : test1::List<i32> ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : bool ;
+  var@10 -> s@2 : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@9 := move var@10 == 0: i32
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  hd -> s@2 : i32 ;
+  tl -> s@3 : test1::List<i32> ;
+  var@6 -> (s@2 : i32, ⊥ : test1::List<i32>) ;
+  var@7 -> ⊥ : test1::List<i32> ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : bool ;
+  var@10 -> s@2 : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  hd -> s@2 : i32 ;
+  tl -> s@3 : test1::List<i32> ;
+  var@6 -> (s@2 : i32, ⊥ : test1::List<i32>) ;
+  var@7 -> ⊥ : test1::List<i32> ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : bool ;
+  var@10 -> s@2 : i32 ;
+}
+
+
+- op:
+move var@10
+
+[Debug] Value to move:
+s@2 : i32
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  hd -> s@2 : i32 ;
+  tl -> s@3 : test1::List<i32> ;
+  var@6 -> (s@2 : i32, ⊥ : test1::List<i32>) ;
+  var@7 -> ⊥ : test1::List<i32> ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : bool ;
+  var@10 -> ⊥ : i32 ;
+}
+
+
+- op:
+0: i32
+
+[Debug] 
+**About to evaluate statement**: [
+  var@8 := ¬ move var@9;
+  assert(¬move var@8);
+  drop(tl);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  hd -> s@2 : i32 ;
+  tl -> s@3 : test1::List<i32> ;
+  var@6 -> (s@2 : i32, ⊥ : test1::List<i32>) ;
+  var@7 -> ⊥ : test1::List<i32> ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> s@4 : bool ;
+  var@10 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@8 := ¬ move var@9
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  hd -> s@2 : i32 ;
+  tl -> s@3 : test1::List<i32> ;
+  var@6 -> (s@2 : i32, ⊥ : test1::List<i32>) ;
+  var@7 -> ⊥ : test1::List<i32> ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> s@4 : bool ;
+  var@10 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  hd -> s@2 : i32 ;
+  tl -> s@3 : test1::List<i32> ;
+  var@6 -> (s@2 : i32, ⊥ : test1::List<i32>) ;
+  var@7 -> ⊥ : test1::List<i32> ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> s@4 : bool ;
+  var@10 -> ⊥ : i32 ;
+}
+
+
+- op:
+move var@9
+
+[Debug] Value to move:
+s@4 : bool
+[Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@8);
+  drop(tl);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  hd -> s@2 : i32 ;
+  tl -> s@3 : test1::List<i32> ;
+  var@6 -> (s@2 : i32, ⊥ : test1::List<i32>) ;
+  var@7 -> ⊥ : test1::List<i32> ;
+  var@8 -> s@5 : bool ;
+  var@9 -> ⊥ : bool ;
+  var@10 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@8)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  hd -> s@2 : i32 ;
+  tl -> s@3 : test1::List<i32> ;
+  var@6 -> (s@2 : i32, ⊥ : test1::List<i32>) ;
+  var@7 -> ⊥ : test1::List<i32> ;
+  var@8 -> s@5 : bool ;
+  var@9 -> ⊥ : bool ;
+  var@10 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  hd -> s@2 : i32 ;
+  tl -> s@3 : test1::List<i32> ;
+  var@6 -> (s@2 : i32, ⊥ : test1::List<i32>) ;
+  var@7 -> ⊥ : test1::List<i32> ;
+  var@8 -> true ;
+  var@9 -> ⊥ : bool ;
+  var@10 -> ⊥ : i32 ;
+}
+
+
+- op:
+move var@8
+
+[Debug] Value to move:
+true
+[Debug] 
+**About to evaluate statement**: [
+  drop(tl);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  hd -> s@2 : i32 ;
+  tl -> s@3 : test1::List<i32> ;
+  var@6 -> (s@2 : i32, ⊥ : test1::List<i32>) ;
+  var@7 -> ⊥ : test1::List<i32> ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : bool ;
+  var@10 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  drop(tl)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  hd -> s@2 : i32 ;
+  tl -> s@3 : test1::List<i32> ;
+  var@6 -> (s@2 : i32, ⊥ : test1::List<i32>) ;
+  var@7 -> ⊥ : test1::List<i32> ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : bool ;
+  var@10 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] drop_value: place: tl
+[Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  l -> ⊥ : test1::List<i32> ;
+  var@2 -> ⊥ : std::boxed::Box<test1::List<i32>> ;
+  var@3 -> ⊥ : test1::List<i32> ;
+  hd -> s@2 : i32 ;
+  tl -> ⊥ : test1::List<i32> ;
+  var@6 -> (s@2 : i32, ⊥ : test1::List<i32>) ;
+  var@7 -> ⊥ : test1::List<i32> ;
+  var@8 -> ⊥ : bool ;
+  var@9 -> ⊥ : bool ;
+  var@10 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] test_function_symbolic: get_elem
+[Debug] 
+**About to evaluate statement**: [
+  var@4 := copy b;
+  if (move var@4) {
+    var@0 := &mut *(x)
+  }
+  else {
+    var@0 := move y
+  };
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  abs@0{parents={}}{regions={0}} {
+    proj_loans (s@0 : bool),
+    proj_loans (s@1 : &r@0 mut (T)),
+    proj_loans (s@2 : &r@0 mut (T))
+  }
+  var@0 -> ⊥ : &'_ mut (T) ;
+  b -> s@0 : bool ;
+  x -> s@1 : &r@0 mut (T) ;
+  y -> s@2 : &r@0 mut (T) ;
+  var@4 -> ⊥ : bool ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@4 := copy b
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  abs@0{parents={}}{regions={0}} {
+    proj_loans (s@0 : bool),
+    proj_loans (s@1 : &r@0 mut (T)),
+    proj_loans (s@2 : &r@0 mut (T))
+  }
+  var@0 -> ⊥ : &'_ mut (T) ;
+  b -> s@0 : bool ;
+  x -> s@1 : &r@0 mut (T) ;
+  y -> s@2 : &r@0 mut (T) ;
+  var@4 -> ⊥ : bool ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  abs@0{parents={}}{regions={0}} {
+    proj_loans (s@0 : bool),
+    proj_loans (s@1 : &r@0 mut (T)),
+    proj_loans (s@2 : &r@0 mut (T))
+  }
+  var@0 -> ⊥ : &'_ mut (T) ;
+  b -> s@0 : bool ;
+  x -> s@1 : &r@0 mut (T) ;
+  y -> s@2 : &r@0 mut (T) ;
+  var@4 -> ⊥ : bool ;
+}
+
+
+- op:
+copy b
+
+[Debug] Value to copy:
+s@0 : bool
+[Debug] 
+**About to evaluate statement**: [
+  if (move var@4) {
+    var@0 := &mut *(x)
+  }
+  else {
+    var@0 := move y
+  };
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  abs@0{parents={}}{regions={0}} {
+    proj_loans (s@0 : bool),
+    proj_loans (s@1 : &r@0 mut (T)),
+    proj_loans (s@2 : &r@0 mut (T))
+  }
+  var@0 -> ⊥ : &'_ mut (T) ;
+  b -> s@0 : bool ;
+  x -> s@1 : &r@0 mut (T) ;
+  y -> s@2 : &r@0 mut (T) ;
+  var@4 -> s@0 : bool ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  if (move var@4) {
+    var@0 := &mut *(x)
+  }
+  else {
+    var@0 := move y
+  }
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  abs@0{parents={}}{regions={0}} {
+    proj_loans (s@0 : bool),
+    proj_loans (s@1 : &r@0 mut (T)),
+    proj_loans (s@2 : &r@0 mut (T))
+  }
+  var@0 -> ⊥ : &'_ mut (T) ;
+  b -> s@0 : bool ;
+  x -> s@1 : &r@0 mut (T) ;
+  y -> s@2 : &r@0 mut (T) ;
+  var@4 -> s@0 : bool ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  abs@0{parents={}}{regions={0}} {
+    true,
+    proj_loans (s@1 : &r@0 mut (T)),
+    proj_loans (s@2 : &r@0 mut (T))
+  }
+  var@0 -> ⊥ : &'_ mut (T) ;
+  b -> true ;
+  x -> s@1 : &r@0 mut (T) ;
+  y -> s@2 : &r@0 mut (T) ;
+  var@4 -> true ;
+}
+
+
+- op:
+move var@4
+
+[Debug] Value to move:
+true
+[Debug] 
+**About to evaluate statement**: [
+  var@0 := &mut *(x)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  abs@0{parents={}}{regions={0}} {
+    true,
+    proj_loans (s@1 : &r@0 mut (T)),
+    proj_loans (s@2 : &r@0 mut (T))
+  }
+  var@0 -> ⊥ : &'_ mut (T) ;
+  b -> true ;
+  x -> s@1 : &r@0 mut (T) ;
+  y -> s@2 : &r@0 mut (T) ;
+  var@4 -> ⊥ : bool ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  abs@0{parents={}}{regions={0}} {
+    false,
+    proj_loans (s@1 : &r@0 mut (T)),
+    proj_loans (s@2 : &r@0 mut (T))
+  }
+  var@0 -> ⊥ : &'_ mut (T) ;
+  b -> false ;
+  x -> s@1 : &r@0 mut (T) ;
+  y -> s@2 : &r@0 mut (T) ;
+  var@4 -> false ;
+}
+
+
+- op:
+move var@4
+
+[Debug] Value to move:
+false
+[Debug] 
+**About to evaluate statement**: [
+  var@0 := move y
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  abs@0{parents={}}{regions={0}} {
+    false,
+    proj_loans (s@1 : &r@0 mut (T)),
+    proj_loans (s@2 : &r@0 mut (T))
+  }
+  var@0 -> ⊥ : &'_ mut (T) ;
+  b -> false ;
+  x -> s@1 : &r@0 mut (T) ;
+  y -> s@2 : &r@0 mut (T) ;
+  var@4 -> ⊥ : bool ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  abs@0{parents={}}{regions={0}} {
+    false,
+    proj_loans (s@1 : &r@0 mut (T)),
+    proj_loans (s@2 : &r@0 mut (T))
+  }
+  var@0 -> ⊥ : &'_ mut (T) ;
+  b -> false ;
+  x -> s@1 : &r@0 mut (T) ;
+  y -> s@2 : &r@0 mut (T) ;
+  var@4 -> ⊥ : bool ;
+}
+
+
+- op:
+move y
+
+[Debug] Value to move:
+s@2 : &r@0 mut (T)
+[Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  abs@0{parents={}}{regions={0}} {
+    true,
+    ⌊mut@0, proj_loans (s@3 : T)⌋,
+    proj_loans (s@2 : &r@0 mut (T))
+  }
+  var@0 -> &mut@1 (s@3 : T) ;
+  b -> true ;
+  x -> &mut@0 (⌊mut@1⌋) ;
+  y -> s@2 : &r@0 mut (T) ;
+  var@4 -> ⊥ : bool ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  abs@0{parents={}}{regions={0}} {
+    false,
+    proj_loans (s@1 : &r@0 mut (T)),
+    proj_loans (s@2 : &r@0 mut (T))
+  }
+  var@0 -> s@2 : &r@0 mut (T) ;
+  b -> false ;
+  x -> s@1 : &r@0 mut (T) ;
+  y -> ⊥ : &'_ mut (T) ;
+  var@4 -> ⊥ : bool ;
+}
+
+
+
+[Debug] test_function_symbolic: get_elem_test
+[Debug] 
+**About to evaluate statement**: [
+  x := 0: i32;
+  y := 0: i32;
+  var@5 := &mut x;
+  var@4 := &two-phase *(var@5);
+  var@7 := &mut y;
+  var@6 := &two-phase *(var@7);
+  z := move get_elem<i32>(true, move var@4, move var@6);
+  var@8 := copy *(z);
+  *(z) := copy var@8 + 1: i32;
+  var@12 := copy *(z);
+  var@11 := move var@12 == 1: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy x;
+  var@14 := move var@15 == 1: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 0: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⊥ : i32 ;
+  y -> ⊥ : i32 ;
+  z -> ⊥ : &'_ mut (i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> ⊥ : &'_ mut (i32) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : &'_ mut (i32) ;
+  var@8 -> ⊥ : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  x := 0: i32
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⊥ : i32 ;
+  y -> ⊥ : i32 ;
+  z -> ⊥ : &'_ mut (i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> ⊥ : &'_ mut (i32) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : &'_ mut (i32) ;
+  var@8 -> ⊥ : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⊥ : i32 ;
+  y -> ⊥ : i32 ;
+  z -> ⊥ : &'_ mut (i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> ⊥ : &'_ mut (i32) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : &'_ mut (i32) ;
+  var@8 -> ⊥ : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+- op:
+0: i32
+
+[Debug] 
+**About to evaluate statement**: [
+  y := 0: i32;
+  var@5 := &mut x;
+  var@4 := &two-phase *(var@5);
+  var@7 := &mut y;
+  var@6 := &two-phase *(var@7);
+  z := move get_elem<i32>(true, move var@4, move var@6);
+  var@8 := copy *(z);
+  *(z) := copy var@8 + 1: i32;
+  var@12 := copy *(z);
+  var@11 := move var@12 == 1: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy x;
+  var@14 := move var@15 == 1: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 0: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⊥ : i32 ;
+  z -> ⊥ : &'_ mut (i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> ⊥ : &'_ mut (i32) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : &'_ mut (i32) ;
+  var@8 -> ⊥ : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  y := 0: i32
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⊥ : i32 ;
+  z -> ⊥ : &'_ mut (i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> ⊥ : &'_ mut (i32) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : &'_ mut (i32) ;
+  var@8 -> ⊥ : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> ⊥ : i32 ;
+  z -> ⊥ : &'_ mut (i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> ⊥ : &'_ mut (i32) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : &'_ mut (i32) ;
+  var@8 -> ⊥ : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+- op:
+0: i32
+
+[Debug] 
+**About to evaluate statement**: [
+  var@5 := &mut x;
+  var@4 := &two-phase *(var@5);
+  var@7 := &mut y;
+  var@6 := &two-phase *(var@7);
+  z := move get_elem<i32>(true, move var@4, move var@6);
+  var@8 := copy *(z);
+  *(z) := copy var@8 + 1: i32;
+  var@12 := copy *(z);
+  var@11 := move var@12 == 1: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy x;
+  var@14 := move var@15 == 1: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 0: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> 0: i32 ;
+  z -> ⊥ : &'_ mut (i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> ⊥ : &'_ mut (i32) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : &'_ mut (i32) ;
+  var@8 -> ⊥ : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@5 := &mut x
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: i32 ;
+  y -> 0: i32 ;
+  z -> ⊥ : &'_ mut (i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> ⊥ : &'_ mut (i32) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : &'_ mut (i32) ;
+  var@8 -> ⊥ : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@4 := &two-phase *(var@5);
+  var@7 := &mut y;
+  var@6 := &two-phase *(var@7);
+  z := move get_elem<i32>(true, move var@4, move var@6);
+  var@8 := copy *(z);
+  *(z) := copy var@8 + 1: i32;
+  var@12 := copy *(z);
+  var@11 := move var@12 == 1: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy x;
+  var@14 := move var@15 == 1: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 0: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  y -> 0: i32 ;
+  z -> ⊥ : &'_ mut (i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> &mut@0 (0: i32) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : &'_ mut (i32) ;
+  var@8 -> ⊥ : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@4 := &two-phase *(var@5)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  y -> 0: i32 ;
+  z -> ⊥ : &'_ mut (i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> &mut@0 (0: i32) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : &'_ mut (i32) ;
+  var@8 -> ⊥ : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@7 := &mut y;
+  var@6 := &two-phase *(var@7);
+  z := move get_elem<i32>(true, move var@4, move var@6);
+  var@8 := copy *(z);
+  *(z) := copy var@8 + 1: i32;
+  var@12 := copy *(z);
+  var@11 := move var@12 == 1: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy x;
+  var@14 := move var@15 == 1: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 0: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  y -> 0: i32 ;
+  z -> ⊥ : &'_ mut (i32) ;
+  var@4 -> ⌊inactivated_mut@1⌋ ;
+  var@5 -> &mut@0 (@shared_loan({1}, 0: i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : &'_ mut (i32) ;
+  var@8 -> ⊥ : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@7 := &mut y
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  y -> 0: i32 ;
+  z -> ⊥ : &'_ mut (i32) ;
+  var@4 -> ⌊inactivated_mut@1⌋ ;
+  var@5 -> &mut@0 (@shared_loan({1}, 0: i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : &'_ mut (i32) ;
+  var@8 -> ⊥ : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@6 := &two-phase *(var@7);
+  z := move get_elem<i32>(true, move var@4, move var@6);
+  var@8 := copy *(z);
+  *(z) := copy var@8 + 1: i32;
+  var@12 := copy *(z);
+  var@11 := move var@12 == 1: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy x;
+  var@14 := move var@15 == 1: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 0: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  y -> ⌊mut@2⌋ ;
+  z -> ⊥ : &'_ mut (i32) ;
+  var@4 -> ⌊inactivated_mut@1⌋ ;
+  var@5 -> &mut@0 (@shared_loan({1}, 0: i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> &mut@2 (0: i32) ;
+  var@8 -> ⊥ : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@6 := &two-phase *(var@7)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  y -> ⌊mut@2⌋ ;
+  z -> ⊥ : &'_ mut (i32) ;
+  var@4 -> ⌊inactivated_mut@1⌋ ;
+  var@5 -> &mut@0 (@shared_loan({1}, 0: i32)) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> &mut@2 (0: i32) ;
+  var@8 -> ⊥ : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  z := move get_elem<i32>(true, move var@4, move var@6);
+  var@8 := copy *(z);
+  *(z) := copy var@8 + 1: i32;
+  var@12 := copy *(z);
+  var@11 := move var@12 == 1: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy x;
+  var@14 := move var@15 == 1: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 0: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  y -> ⌊mut@2⌋ ;
+  z -> ⊥ : &'_ mut (i32) ;
+  var@4 -> ⌊inactivated_mut@1⌋ ;
+  var@5 -> &mut@0 (@shared_loan({1}, 0: i32)) ;
+  var@6 -> ⌊inactivated_mut@3⌋ ;
+  var@7 -> &mut@2 (@shared_loan({3}, 0: i32)) ;
+  var@8 -> ⊥ : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  z := move get_elem<i32>(true, move var@4, move var@6)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  y -> ⌊mut@2⌋ ;
+  z -> ⊥ : &'_ mut (i32) ;
+  var@4 -> ⌊inactivated_mut@1⌋ ;
+  var@5 -> &mut@0 (@shared_loan({1}, 0: i32)) ;
+  var@6 -> ⌊inactivated_mut@3⌋ ;
+  var@7 -> &mut@2 (@shared_loan({3}, 0: i32)) ;
+  var@8 -> ⊥ : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  y -> ⌊mut@2⌋ ;
+  z -> ⊥ : &'_ mut (i32) ;
+  var@4 -> ⌊inactivated_mut@1⌋ ;
+  var@5 -> &mut@0 (@shared_loan({1}, 0: i32)) ;
+  var@6 -> ⌊inactivated_mut@3⌋ ;
+  var@7 -> &mut@2 (@shared_loan({3}, 0: i32)) ;
+  var@8 -> ⊥ : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+- op:
+true
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  y -> ⌊mut@2⌋ ;
+  z -> ⊥ : &'_ mut (i32) ;
+  var@4 -> ⌊inactivated_mut@1⌋ ;
+  var@5 -> &mut@0 (@shared_loan({1}, 0: i32)) ;
+  var@6 -> ⌊inactivated_mut@3⌋ ;
+  var@7 -> &mut@2 (@shared_loan({3}, 0: i32)) ;
+  var@8 -> ⊥ : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+- op:
+move var@4
+
+[Debug] activate_inactivated_mut_borrow: resulting value:
+{ Values.value =
+  (Values.Concrete (Values.Scalar { Values.value = 0; int_ty = Types.I32 }));
+  ty = (Types.Integer Types.I32) }
+[Debug] Value to move:
+&mut@1 (0: i32)
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  y -> ⌊mut@2⌋ ;
+  z -> ⊥ : &'_ mut (i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> &mut@0 (⌊mut@1⌋) ;
+  var@6 -> ⌊inactivated_mut@3⌋ ;
+  var@7 -> &mut@2 (@shared_loan({3}, 0: i32)) ;
+  var@8 -> ⊥ : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+- op:
+move var@6
+
+[Debug] activate_inactivated_mut_borrow: resulting value:
+{ Values.value =
+  (Values.Concrete (Values.Scalar { Values.value = 0; int_ty = Types.I32 }));
+  ty = (Types.Integer Types.I32) }
+[Debug] Value to move:
+&mut@3 (0: i32)
+[Debug] 
+**About to evaluate statement**: [
+  var@8 := copy *(z);
+  *(z) := copy var@8 + 1: i32;
+  var@12 := copy *(z);
+  var@11 := move var@12 == 1: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy x;
+  var@14 := move var@15 == 1: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 0: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  y -> ⌊mut@2⌋ ;
+  z -> s@0 : &r@0 mut (i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> &mut@0 (⌊mut@1⌋) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> &mut@2 (⌊mut@3⌋) ;
+  var@8 -> ⊥ : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+  abs@0{parents={}}{regions={0}} {
+    true,
+    &mut@1 (0: i32),
+    &mut@3 (0: i32),
+    proj_loans (s@0 : &r@0 mut (i32))
+  }
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@8 := copy *(z)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  y -> ⌊mut@2⌋ ;
+  z -> s@0 : &r@0 mut (i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> &mut@0 (⌊mut@1⌋) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> &mut@2 (⌊mut@3⌋) ;
+  var@8 -> ⊥ : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+  abs@0{parents={}}{regions={0}} {
+    true,
+    &mut@1 (0: i32),
+    &mut@3 (0: i32),
+    proj_loans (s@0 : &r@0 mut (i32))
+  }
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  y -> ⌊mut@2⌋ ;
+  z -> s@0 : &r@0 mut (i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> &mut@0 (⌊mut@1⌋) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> &mut@2 (⌊mut@3⌋) ;
+  var@8 -> ⊥ : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+  abs@0{parents={}}{regions={0}} {
+    true,
+    &mut@1 (0: i32),
+    &mut@3 (0: i32),
+    proj_loans (s@0 : &r@0 mut (i32))
+  }
+}
+
+
+- op:
+copy *(z)
+
+[Debug] Value to copy:
+s@1 : i32
+[Debug] 
+**About to evaluate statement**: [
+  *(z) := copy var@8 + 1: i32;
+  var@12 := copy *(z);
+  var@11 := move var@12 == 1: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy x;
+  var@14 := move var@15 == 1: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 0: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  y -> ⌊mut@2⌋ ;
+  z -> &mut@4 (s@1 : i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> &mut@0 (⌊mut@1⌋) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> &mut@2 (⌊mut@3⌋) ;
+  var@8 -> s@1 : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+  abs@0{parents={}}{regions={0}} {
+    true,
+    &mut@1 (0: i32),
+    &mut@3 (0: i32),
+    ⌊mut@4, proj_loans (s@1 : i32)⌋
+  }
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  *(z) := copy var@8 + 1: i32
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  y -> ⌊mut@2⌋ ;
+  z -> &mut@4 (s@1 : i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> &mut@0 (⌊mut@1⌋) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> &mut@2 (⌊mut@3⌋) ;
+  var@8 -> s@1 : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+  abs@0{parents={}}{regions={0}} {
+    true,
+    &mut@1 (0: i32),
+    &mut@3 (0: i32),
+    ⌊mut@4, proj_loans (s@1 : i32)⌋
+  }
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  y -> ⌊mut@2⌋ ;
+  z -> &mut@4 (s@1 : i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> &mut@0 (⌊mut@1⌋) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> &mut@2 (⌊mut@3⌋) ;
+  var@8 -> s@1 : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+  abs@0{parents={}}{regions={0}} {
+    true,
+    &mut@1 (0: i32),
+    &mut@3 (0: i32),
+    ⌊mut@4, proj_loans (s@1 : i32)⌋
+  }
+}
+
+
+- op:
+copy var@8
+
+[Debug] Value to copy:
+s@1 : i32
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  y -> ⌊mut@2⌋ ;
+  z -> &mut@4 (s@1 : i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> &mut@0 (⌊mut@1⌋) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> &mut@2 (⌊mut@3⌋) ;
+  var@8 -> s@1 : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+  abs@0{parents={}}{regions={0}} {
+    true,
+    &mut@1 (0: i32),
+    &mut@3 (0: i32),
+    ⌊mut@4, proj_loans (s@1 : i32)⌋
+  }
+}
+
+
+- op:
+1: i32
+
+[Debug] 
+**About to evaluate statement**: [
+  var@12 := copy *(z);
+  var@11 := move var@12 == 1: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy x;
+  var@14 := move var@15 == 1: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 0: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  y -> ⌊mut@2⌋ ;
+  z -> &mut@4 (s@2 : i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> &mut@0 (⌊mut@1⌋) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> &mut@2 (⌊mut@3⌋) ;
+  var@8 -> s@1 : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+  abs@0{parents={}}{regions={0}} {
+    true,
+    &mut@1 (0: i32),
+    &mut@3 (0: i32),
+    ⌊mut@4, proj_loans (s@1 : i32)⌋
+  }
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@12 := copy *(z)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  y -> ⌊mut@2⌋ ;
+  z -> &mut@4 (s@2 : i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> &mut@0 (⌊mut@1⌋) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> &mut@2 (⌊mut@3⌋) ;
+  var@8 -> s@1 : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+  abs@0{parents={}}{regions={0}} {
+    true,
+    &mut@1 (0: i32),
+    &mut@3 (0: i32),
+    ⌊mut@4, proj_loans (s@1 : i32)⌋
+  }
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  y -> ⌊mut@2⌋ ;
+  z -> &mut@4 (s@2 : i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> &mut@0 (⌊mut@1⌋) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> &mut@2 (⌊mut@3⌋) ;
+  var@8 -> s@1 : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+  abs@0{parents={}}{regions={0}} {
+    true,
+    &mut@1 (0: i32),
+    &mut@3 (0: i32),
+    ⌊mut@4, proj_loans (s@1 : i32)⌋
+  }
+}
+
+
+- op:
+copy *(z)
+
+[Debug] Value to copy:
+s@2 : i32
+[Debug] 
+**About to evaluate statement**: [
+  var@11 := move var@12 == 1: i32;
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy x;
+  var@14 := move var@15 == 1: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 0: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  y -> ⌊mut@2⌋ ;
+  z -> &mut@4 (s@2 : i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> &mut@0 (⌊mut@1⌋) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> &mut@2 (⌊mut@3⌋) ;
+  var@8 -> s@1 : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> s@2 : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+  abs@0{parents={}}{regions={0}} {
+    true,
+    &mut@1 (0: i32),
+    &mut@3 (0: i32),
+    ⌊mut@4, proj_loans (s@1 : i32)⌋
+  }
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@11 := move var@12 == 1: i32
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  y -> ⌊mut@2⌋ ;
+  z -> &mut@4 (s@2 : i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> &mut@0 (⌊mut@1⌋) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> &mut@2 (⌊mut@3⌋) ;
+  var@8 -> s@1 : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> s@2 : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+  abs@0{parents={}}{regions={0}} {
+    true,
+    &mut@1 (0: i32),
+    &mut@3 (0: i32),
+    ⌊mut@4, proj_loans (s@1 : i32)⌋
+  }
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  y -> ⌊mut@2⌋ ;
+  z -> &mut@4 (s@2 : i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> &mut@0 (⌊mut@1⌋) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> &mut@2 (⌊mut@3⌋) ;
+  var@8 -> s@1 : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> s@2 : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+  abs@0{parents={}}{regions={0}} {
+    true,
+    &mut@1 (0: i32),
+    &mut@3 (0: i32),
+    ⌊mut@4, proj_loans (s@1 : i32)⌋
+  }
+}
+
+
+- op:
+move var@12
+
+[Debug] Value to move:
+s@2 : i32
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  y -> ⌊mut@2⌋ ;
+  z -> &mut@4 (s@2 : i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> &mut@0 (⌊mut@1⌋) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> &mut@2 (⌊mut@3⌋) ;
+  var@8 -> s@1 : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+  abs@0{parents={}}{regions={0}} {
+    true,
+    &mut@1 (0: i32),
+    &mut@3 (0: i32),
+    ⌊mut@4, proj_loans (s@1 : i32)⌋
+  }
+}
+
+
+- op:
+1: i32
+
+[Debug] 
+**About to evaluate statement**: [
+  var@10 := ¬ move var@11;
+  assert(¬move var@10);
+  var@15 := copy x;
+  var@14 := move var@15 == 1: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 0: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  y -> ⌊mut@2⌋ ;
+  z -> &mut@4 (s@2 : i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> &mut@0 (⌊mut@1⌋) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> &mut@2 (⌊mut@3⌋) ;
+  var@8 -> s@1 : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> s@3 : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+  abs@0{parents={}}{regions={0}} {
+    true,
+    &mut@1 (0: i32),
+    &mut@3 (0: i32),
+    ⌊mut@4, proj_loans (s@1 : i32)⌋
+  }
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@10 := ¬ move var@11
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  y -> ⌊mut@2⌋ ;
+  z -> &mut@4 (s@2 : i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> &mut@0 (⌊mut@1⌋) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> &mut@2 (⌊mut@3⌋) ;
+  var@8 -> s@1 : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> s@3 : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+  abs@0{parents={}}{regions={0}} {
+    true,
+    &mut@1 (0: i32),
+    &mut@3 (0: i32),
+    ⌊mut@4, proj_loans (s@1 : i32)⌋
+  }
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  y -> ⌊mut@2⌋ ;
+  z -> &mut@4 (s@2 : i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> &mut@0 (⌊mut@1⌋) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> &mut@2 (⌊mut@3⌋) ;
+  var@8 -> s@1 : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> s@3 : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+  abs@0{parents={}}{regions={0}} {
+    true,
+    &mut@1 (0: i32),
+    &mut@3 (0: i32),
+    ⌊mut@4, proj_loans (s@1 : i32)⌋
+  }
+}
+
+
+- op:
+move var@11
+
+[Debug] Value to move:
+s@3 : bool
+[Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@10);
+  var@15 := copy x;
+  var@14 := move var@15 == 1: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 0: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  y -> ⌊mut@2⌋ ;
+  z -> &mut@4 (s@2 : i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> &mut@0 (⌊mut@1⌋) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> &mut@2 (⌊mut@3⌋) ;
+  var@8 -> s@1 : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> s@4 : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+  abs@0{parents={}}{regions={0}} {
+    true,
+    &mut@1 (0: i32),
+    &mut@3 (0: i32),
+    ⌊mut@4, proj_loans (s@1 : i32)⌋
+  }
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@10)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  y -> ⌊mut@2⌋ ;
+  z -> &mut@4 (s@2 : i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> &mut@0 (⌊mut@1⌋) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> &mut@2 (⌊mut@3⌋) ;
+  var@8 -> s@1 : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> s@4 : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+  abs@0{parents={}}{regions={0}} {
+    true,
+    &mut@1 (0: i32),
+    &mut@3 (0: i32),
+    ⌊mut@4, proj_loans (s@1 : i32)⌋
+  }
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  y -> ⌊mut@2⌋ ;
+  z -> &mut@4 (s@2 : i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> &mut@0 (⌊mut@1⌋) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> &mut@2 (⌊mut@3⌋) ;
+  var@8 -> s@1 : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> true ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+  abs@0{parents={}}{regions={0}} {
+    true,
+    &mut@1 (0: i32),
+    &mut@3 (0: i32),
+    ⌊mut@4, proj_loans (s@1 : i32)⌋
+  }
+}
+
+
+- op:
+move var@10
+
+[Debug] Value to move:
+true
+[Debug] 
+**About to evaluate statement**: [
+  var@15 := copy x;
+  var@14 := move var@15 == 1: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 0: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  y -> ⌊mut@2⌋ ;
+  z -> &mut@4 (s@2 : i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> &mut@0 (⌊mut@1⌋) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> &mut@2 (⌊mut@3⌋) ;
+  var@8 -> s@1 : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+  abs@0{parents={}}{regions={0}} {
+    true,
+    &mut@1 (0: i32),
+    &mut@3 (0: i32),
+    ⌊mut@4, proj_loans (s@1 : i32)⌋
+  }
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@15 := copy x
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  y -> ⌊mut@2⌋ ;
+  z -> &mut@4 (s@2 : i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> &mut@0 (⌊mut@1⌋) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> &mut@2 (⌊mut@3⌋) ;
+  var@8 -> s@1 : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+  abs@0{parents={}}{regions={0}} {
+    true,
+    &mut@1 (0: i32),
+    &mut@3 (0: i32),
+    ⌊mut@4, proj_loans (s@1 : i32)⌋
+  }
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  y -> ⌊mut@2⌋ ;
+  z -> &mut@4 (s@2 : i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> &mut@0 (⌊mut@1⌋) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> &mut@2 (⌊mut@3⌋) ;
+  var@8 -> s@1 : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+  abs@0{parents={}}{regions={0}} {
+    true,
+    &mut@1 (0: i32),
+    &mut@3 (0: i32),
+    ⌊mut@4, proj_loans (s@1 : i32)⌋
+  }
+}
+
+
+- op:
+copy x
+
+[Debug] Value to copy:
+s@5 : i32
+[Debug] 
+**About to evaluate statement**: [
+  var@14 := move var@15 == 1: i32;
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 0: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {0}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@5 : i32 ;
+  y -> ⌊mut@2⌋ ;
+  z -> ⊥ : &'_ mut (i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> ⊥ : &'_ mut (i32) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> &mut@2 (s@6 : i32) ;
+  var@8 -> s@1 : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> s@5 : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@14 := move var@15 == 1: i32
+]
+
+**Context**:
+# Ended regions: {0}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@5 : i32 ;
+  y -> ⌊mut@2⌋ ;
+  z -> ⊥ : &'_ mut (i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> ⊥ : &'_ mut (i32) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> &mut@2 (s@6 : i32) ;
+  var@8 -> s@1 : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> s@5 : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {0}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@5 : i32 ;
+  y -> ⌊mut@2⌋ ;
+  z -> ⊥ : &'_ mut (i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> ⊥ : &'_ mut (i32) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> &mut@2 (s@6 : i32) ;
+  var@8 -> s@1 : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> s@5 : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+- op:
+move var@15
+
+[Debug] Value to move:
+s@5 : i32
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {0}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@5 : i32 ;
+  y -> ⌊mut@2⌋ ;
+  z -> ⊥ : &'_ mut (i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> ⊥ : &'_ mut (i32) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> &mut@2 (s@6 : i32) ;
+  var@8 -> s@1 : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+- op:
+1: i32
+
+[Debug] 
+**About to evaluate statement**: [
+  var@13 := ¬ move var@14;
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 0: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {0}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@5 : i32 ;
+  y -> ⌊mut@2⌋ ;
+  z -> ⊥ : &'_ mut (i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> ⊥ : &'_ mut (i32) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> &mut@2 (s@6 : i32) ;
+  var@8 -> s@1 : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> s@7 : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@13 := ¬ move var@14
+]
+
+**Context**:
+# Ended regions: {0}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@5 : i32 ;
+  y -> ⌊mut@2⌋ ;
+  z -> ⊥ : &'_ mut (i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> ⊥ : &'_ mut (i32) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> &mut@2 (s@6 : i32) ;
+  var@8 -> s@1 : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> s@7 : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {0}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@5 : i32 ;
+  y -> ⌊mut@2⌋ ;
+  z -> ⊥ : &'_ mut (i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> ⊥ : &'_ mut (i32) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> &mut@2 (s@6 : i32) ;
+  var@8 -> s@1 : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> s@7 : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+- op:
+move var@14
+
+[Debug] Value to move:
+s@7 : bool
+[Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@13);
+  var@18 := copy y;
+  var@17 := move var@18 == 0: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {0}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@5 : i32 ;
+  y -> ⌊mut@2⌋ ;
+  z -> ⊥ : &'_ mut (i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> ⊥ : &'_ mut (i32) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> &mut@2 (s@6 : i32) ;
+  var@8 -> s@1 : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> s@8 : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@13)
+]
+
+**Context**:
+# Ended regions: {0}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@5 : i32 ;
+  y -> ⌊mut@2⌋ ;
+  z -> ⊥ : &'_ mut (i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> ⊥ : &'_ mut (i32) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> &mut@2 (s@6 : i32) ;
+  var@8 -> s@1 : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> s@8 : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {0}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@5 : i32 ;
+  y -> ⌊mut@2⌋ ;
+  z -> ⊥ : &'_ mut (i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> ⊥ : &'_ mut (i32) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> &mut@2 (s@6 : i32) ;
+  var@8 -> s@1 : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> true ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+- op:
+move var@13
+
+[Debug] Value to move:
+true
+[Debug] 
+**About to evaluate statement**: [
+  var@18 := copy y;
+  var@17 := move var@18 == 0: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {0}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@5 : i32 ;
+  y -> ⌊mut@2⌋ ;
+  z -> ⊥ : &'_ mut (i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> ⊥ : &'_ mut (i32) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> &mut@2 (s@6 : i32) ;
+  var@8 -> s@1 : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@18 := copy y
+]
+
+**Context**:
+# Ended regions: {0}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@5 : i32 ;
+  y -> ⌊mut@2⌋ ;
+  z -> ⊥ : &'_ mut (i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> ⊥ : &'_ mut (i32) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> &mut@2 (s@6 : i32) ;
+  var@8 -> s@1 : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {0}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@5 : i32 ;
+  y -> ⌊mut@2⌋ ;
+  z -> ⊥ : &'_ mut (i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> ⊥ : &'_ mut (i32) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> &mut@2 (s@6 : i32) ;
+  var@8 -> s@1 : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+- op:
+copy y
+
+[Debug] Value to copy:
+s@6 : i32
+[Debug] 
+**About to evaluate statement**: [
+  var@17 := move var@18 == 0: i32;
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {0}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@5 : i32 ;
+  y -> s@6 : i32 ;
+  z -> ⊥ : &'_ mut (i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> ⊥ : &'_ mut (i32) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : &'_ mut (i32) ;
+  var@8 -> s@1 : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> s@6 : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@17 := move var@18 == 0: i32
+]
+
+**Context**:
+# Ended regions: {0}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@5 : i32 ;
+  y -> s@6 : i32 ;
+  z -> ⊥ : &'_ mut (i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> ⊥ : &'_ mut (i32) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : &'_ mut (i32) ;
+  var@8 -> s@1 : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> s@6 : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {0}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@5 : i32 ;
+  y -> s@6 : i32 ;
+  z -> ⊥ : &'_ mut (i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> ⊥ : &'_ mut (i32) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : &'_ mut (i32) ;
+  var@8 -> s@1 : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> s@6 : i32 ;
+}
+
+
+- op:
+move var@18
+
+[Debug] Value to move:
+s@6 : i32
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {0}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@5 : i32 ;
+  y -> s@6 : i32 ;
+  z -> ⊥ : &'_ mut (i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> ⊥ : &'_ mut (i32) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : &'_ mut (i32) ;
+  var@8 -> s@1 : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+- op:
+0: i32
+
+[Debug] 
+**About to evaluate statement**: [
+  var@16 := ¬ move var@17;
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {0}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@5 : i32 ;
+  y -> s@6 : i32 ;
+  z -> ⊥ : &'_ mut (i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> ⊥ : &'_ mut (i32) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : &'_ mut (i32) ;
+  var@8 -> s@1 : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> s@9 : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@16 := ¬ move var@17
+]
+
+**Context**:
+# Ended regions: {0}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@5 : i32 ;
+  y -> s@6 : i32 ;
+  z -> ⊥ : &'_ mut (i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> ⊥ : &'_ mut (i32) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : &'_ mut (i32) ;
+  var@8 -> s@1 : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> s@9 : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {0}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@5 : i32 ;
+  y -> s@6 : i32 ;
+  z -> ⊥ : &'_ mut (i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> ⊥ : &'_ mut (i32) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : &'_ mut (i32) ;
+  var@8 -> s@1 : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> s@9 : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+- op:
+move var@17
+
+[Debug] Value to move:
+s@9 : bool
+[Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@16);
+  return
+]
+
+**Context**:
+# Ended regions: {0}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@5 : i32 ;
+  y -> s@6 : i32 ;
+  z -> ⊥ : &'_ mut (i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> ⊥ : &'_ mut (i32) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : &'_ mut (i32) ;
+  var@8 -> s@1 : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> s@10 : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  assert(¬move var@16)
+]
+
+**Context**:
+# Ended regions: {0}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@5 : i32 ;
+  y -> s@6 : i32 ;
+  z -> ⊥ : &'_ mut (i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> ⊥ : &'_ mut (i32) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : &'_ mut (i32) ;
+  var@8 -> s@1 : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> s@10 : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {0}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@5 : i32 ;
+  y -> s@6 : i32 ;
+  z -> ⊥ : &'_ mut (i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> ⊥ : &'_ mut (i32) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : &'_ mut (i32) ;
+  var@8 -> s@1 : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> true ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+- op:
+move var@16
+
+[Debug] Value to move:
+true
+[Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {0}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> s@5 : i32 ;
+  y -> s@6 : i32 ;
+  z -> ⊥ : &'_ mut (i32) ;
+  var@4 -> ⊥ : &'_ mut (i32) ;
+  var@5 -> ⊥ : &'_ mut (i32) ;
+  var@6 -> ⊥ : &'_ mut (i32) ;
+  var@7 -> ⊥ : &'_ mut (i32) ;
+  var@8 -> s@1 : i32 ;
+  var@9 -> ⊥ : (i32, bool) ;
+  var@10 -> ⊥ : bool ;
+  var@11 -> ⊥ : bool ;
+  var@12 -> ⊥ : i32 ;
+  var@13 -> ⊥ : bool ;
+  var@14 -> ⊥ : bool ;
+  var@15 -> ⊥ : i32 ;
+  var@16 -> ⊥ : bool ;
+  var@17 -> ⊥ : bool ;
+  var@18 -> ⊥ : i32 ;
+}
+
+
+
+[Debug] test_function_symbolic: id_mut_mut
+[Debug] 
+**About to evaluate statement**: [
+  var@2 := &mut *(x);
+  var@0 := &mut *(var@2);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  abs@0{parents={}}{regions={0}} {
+    proj_loans (s@0 : &r@0 mut (&r@1 mut (T)))
+  }
+  abs@1{parents={0}}{regions={1}} {
+    proj_loans (s@0 : &r@0 mut (&r@1 mut (T)))
+  }
+  var@0 -> ⊥ : &'_ mut (&'_ mut (T)) ;
+  x -> s@0 : &r@0 mut (&r@1 mut (T)) ;
+  var@2 -> ⊥ : &'_ mut (&'_ mut (T)) ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@2 := &mut *(x)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  abs@0{parents={}}{regions={0}} {
+    proj_loans (s@0 : &r@0 mut (&r@1 mut (T)))
+  }
+  abs@1{parents={0}}{regions={1}} {
+    proj_loans (s@0 : &r@0 mut (&r@1 mut (T)))
+  }
+  var@0 -> ⊥ : &'_ mut (&'_ mut (T)) ;
+  x -> s@0 : &r@0 mut (&r@1 mut (T)) ;
+  var@2 -> ⊥ : &'_ mut (&'_ mut (T)) ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@0 := &mut *(var@2);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  abs@0{parents={}}{regions={0}} {
+    ⌊mut@0, proj_loans (s@1 : &r@1 mut (T))⌋
+  }
+  abs@1{parents={0}}{regions={1}} {
+    @ignored_mut_loan(0, proj_loans (s@1 : &r@1 mut (T)))
+  }
+  var@0 -> ⊥ : &'_ mut (&'_ mut (T)) ;
+  x -> &mut@0 (⌊mut@1⌋) ;
+  var@2 -> &mut@1 (s@1 : &r@1 mut (T)) ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@0 := &mut *(var@2)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  abs@0{parents={}}{regions={0}} {
+    ⌊mut@0, proj_loans (s@1 : &r@1 mut (T))⌋
+  }
+  abs@1{parents={0}}{regions={1}} {
+    @ignored_mut_loan(0, proj_loans (s@1 : &r@1 mut (T)))
+  }
+  var@0 -> ⊥ : &'_ mut (&'_ mut (T)) ;
+  x -> &mut@0 (⌊mut@1⌋) ;
+  var@2 -> &mut@1 (s@1 : &r@1 mut (T)) ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  abs@0{parents={}}{regions={0}} {
+    ⌊mut@0, proj_loans (s@1 : &r@1 mut (T))⌋
+  }
+  abs@1{parents={0}}{regions={1}} {
+    @ignored_mut_loan(0, proj_loans (s@1 : &r@1 mut (T)))
+  }
+  var@0 -> &mut@2 (s@1 : &r@1 mut (T)) ;
+  x -> &mut@0 (⌊mut@1⌋) ;
+  var@2 -> &mut@1 (⌊mut@2⌋) ;
+}
+
+
+
+[Debug] test_function_symbolic: id_mut_pair
+[Debug] 
+**About to evaluate statement**: [
+  var@2 := &mut *(x);
+  var@0 := &mut *(var@2);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  abs@0{parents={}}{regions={0}} {
+    proj_loans (s@0 : &r@0 mut ((&r@0 mut (T), u32)))
+  }
+  var@0 -> ⊥ : &'_ mut ((&'_ mut (T), u32)) ;
+  x -> s@0 : &r@0 mut ((&r@0 mut (T), u32)) ;
+  var@2 -> ⊥ : &'_ mut ((&'_ mut (T), u32)) ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@2 := &mut *(x)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  abs@0{parents={}}{regions={0}} {
+    proj_loans (s@0 : &r@0 mut ((&r@0 mut (T), u32)))
+  }
+  var@0 -> ⊥ : &'_ mut ((&'_ mut (T), u32)) ;
+  x -> s@0 : &r@0 mut ((&r@0 mut (T), u32)) ;
+  var@2 -> ⊥ : &'_ mut ((&'_ mut (T), u32)) ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@0 := &mut *(var@2);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  abs@0{parents={}}{regions={0}} {
+    ⌊mut@0, proj_loans (s@1 : (&r@0 mut (T), u32))⌋
+  }
+  var@0 -> ⊥ : &'_ mut ((&'_ mut (T), u32)) ;
+  x -> &mut@0 (⌊mut@1⌋) ;
+  var@2 -> &mut@1 (s@1 : (&r@0 mut (T), u32)) ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@0 := &mut *(var@2)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  abs@0{parents={}}{regions={0}} {
+    ⌊mut@0, proj_loans (s@1 : (&r@0 mut (T), u32))⌋
+  }
+  var@0 -> ⊥ : &'_ mut ((&'_ mut (T), u32)) ;
+  x -> &mut@0 (⌊mut@1⌋) ;
+  var@2 -> &mut@1 (s@1 : (&r@0 mut (T), u32)) ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  abs@0{parents={}}{regions={0}} {
+    ⌊mut@0, proj_loans (s@1 : (&r@0 mut (T), u32))⌋
+  }
+  var@0 -> &mut@2 (s@1 : (&r@0 mut (T), u32)) ;
+  x -> &mut@0 (⌊mut@1⌋) ;
+  var@2 -> &mut@1 (⌊mut@2⌋) ;
+}
+
+
+
+[Debug] test_function_symbolic: id_mut_pair_test1
+[Debug] 
+**About to evaluate statement**: [
+  x := 0: u32;
+  px := &mut x;
+  var@4 := move px;
+  (p).0 := move var@4;
+  (p).1 := 1: u32;
+  pp0 := &mut p;
+  var@7 := &two-phase *(pp0);
+  pp1 := move id_mut_pair<u32>(move var@7);
+  y := 2: u32;
+  var@10 := &mut y;
+  var@9 := &mut *(var@10);
+  *((pp1).0) := move var@9;
+  *((pp1).1) := 3: u32;
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⊥ : u32 ;
+  px -> ⊥ : &'_ mut (u32) ;
+  p -> ⊥ : (&'_ mut (u32), u32) ;
+  var@4 -> ⊥ : &'_ mut (u32) ;
+  pp0 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  pp1 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  var@7 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  y -> ⊥ : u32 ;
+  var@9 -> ⊥ : &'_ mut (u32) ;
+  var@10 -> ⊥ : &'_ mut (u32) ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  x := 0: u32
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⊥ : u32 ;
+  px -> ⊥ : &'_ mut (u32) ;
+  p -> ⊥ : (&'_ mut (u32), u32) ;
+  var@4 -> ⊥ : &'_ mut (u32) ;
+  pp0 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  pp1 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  var@7 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  y -> ⊥ : u32 ;
+  var@9 -> ⊥ : &'_ mut (u32) ;
+  var@10 -> ⊥ : &'_ mut (u32) ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⊥ : u32 ;
+  px -> ⊥ : &'_ mut (u32) ;
+  p -> ⊥ : (&'_ mut (u32), u32) ;
+  var@4 -> ⊥ : &'_ mut (u32) ;
+  pp0 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  pp1 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  var@7 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  y -> ⊥ : u32 ;
+  var@9 -> ⊥ : &'_ mut (u32) ;
+  var@10 -> ⊥ : &'_ mut (u32) ;
+}
+
+
+- op:
+0: u32
+
+[Debug] 
+**About to evaluate statement**: [
+  px := &mut x;
+  var@4 := move px;
+  (p).0 := move var@4;
+  (p).1 := 1: u32;
+  pp0 := &mut p;
+  var@7 := &two-phase *(pp0);
+  pp1 := move id_mut_pair<u32>(move var@7);
+  y := 2: u32;
+  var@10 := &mut y;
+  var@9 := &mut *(var@10);
+  *((pp1).0) := move var@9;
+  *((pp1).1) := 3: u32;
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: u32 ;
+  px -> ⊥ : &'_ mut (u32) ;
+  p -> ⊥ : (&'_ mut (u32), u32) ;
+  var@4 -> ⊥ : &'_ mut (u32) ;
+  pp0 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  pp1 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  var@7 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  y -> ⊥ : u32 ;
+  var@9 -> ⊥ : &'_ mut (u32) ;
+  var@10 -> ⊥ : &'_ mut (u32) ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  px := &mut x
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> 0: u32 ;
+  px -> ⊥ : &'_ mut (u32) ;
+  p -> ⊥ : (&'_ mut (u32), u32) ;
+  var@4 -> ⊥ : &'_ mut (u32) ;
+  pp0 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  pp1 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  var@7 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  y -> ⊥ : u32 ;
+  var@9 -> ⊥ : &'_ mut (u32) ;
+  var@10 -> ⊥ : &'_ mut (u32) ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@4 := move px;
+  (p).0 := move var@4;
+  (p).1 := 1: u32;
+  pp0 := &mut p;
+  var@7 := &two-phase *(pp0);
+  pp1 := move id_mut_pair<u32>(move var@7);
+  y := 2: u32;
+  var@10 := &mut y;
+  var@9 := &mut *(var@10);
+  *((pp1).0) := move var@9;
+  *((pp1).1) := 3: u32;
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  px -> &mut@0 (0: u32) ;
+  p -> ⊥ : (&'_ mut (u32), u32) ;
+  var@4 -> ⊥ : &'_ mut (u32) ;
+  pp0 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  pp1 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  var@7 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  y -> ⊥ : u32 ;
+  var@9 -> ⊥ : &'_ mut (u32) ;
+  var@10 -> ⊥ : &'_ mut (u32) ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@4 := move px
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  px -> &mut@0 (0: u32) ;
+  p -> ⊥ : (&'_ mut (u32), u32) ;
+  var@4 -> ⊥ : &'_ mut (u32) ;
+  pp0 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  pp1 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  var@7 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  y -> ⊥ : u32 ;
+  var@9 -> ⊥ : &'_ mut (u32) ;
+  var@10 -> ⊥ : &'_ mut (u32) ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  px -> &mut@0 (0: u32) ;
+  p -> ⊥ : (&'_ mut (u32), u32) ;
+  var@4 -> ⊥ : &'_ mut (u32) ;
+  pp0 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  pp1 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  var@7 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  y -> ⊥ : u32 ;
+  var@9 -> ⊥ : &'_ mut (u32) ;
+  var@10 -> ⊥ : &'_ mut (u32) ;
+}
+
+
+- op:
+move px
+
+[Debug] Value to move:
+&mut@0 (0: u32)
+[Debug] 
+**About to evaluate statement**: [
+  (p).0 := move var@4;
+  (p).1 := 1: u32;
+  pp0 := &mut p;
+  var@7 := &two-phase *(pp0);
+  pp1 := move id_mut_pair<u32>(move var@7);
+  y := 2: u32;
+  var@10 := &mut y;
+  var@9 := &mut *(var@10);
+  *((pp1).0) := move var@9;
+  *((pp1).1) := 3: u32;
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  px -> ⊥ : &'_ mut (u32) ;
+  p -> ⊥ : (&'_ mut (u32), u32) ;
+  var@4 -> &mut@0 (0: u32) ;
+  pp0 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  pp1 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  var@7 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  y -> ⊥ : u32 ;
+  var@9 -> ⊥ : &'_ mut (u32) ;
+  var@10 -> ⊥ : &'_ mut (u32) ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  (p).0 := move var@4
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  px -> ⊥ : &'_ mut (u32) ;
+  p -> ⊥ : (&'_ mut (u32), u32) ;
+  var@4 -> &mut@0 (0: u32) ;
+  pp0 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  pp1 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  var@7 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  y -> ⊥ : u32 ;
+  var@9 -> ⊥ : &'_ mut (u32) ;
+  var@10 -> ⊥ : &'_ mut (u32) ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  px -> ⊥ : &'_ mut (u32) ;
+  p -> ⊥ : (&'_ mut (u32), u32) ;
+  var@4 -> &mut@0 (0: u32) ;
+  pp0 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  pp1 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  var@7 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  y -> ⊥ : u32 ;
+  var@9 -> ⊥ : &'_ mut (u32) ;
+  var@10 -> ⊥ : &'_ mut (u32) ;
+}
+
+
+- op:
+move var@4
+
+[Debug] Value to move:
+&mut@0 (0: u32)
+[Debug] expand_bottom_value_from_projection:
+pe: (Expressions.Field ((Expressions.ProjTuple 2), 0))
+ty: (Types.Adt (Types.Tuple, [],
+   [(Types.Ref (Types.Erased, (Types.Integer Types.U32), Types.Mut));
+     (Types.Integer Types.U32)]
+   ))
+[Debug] 
+**About to evaluate statement**: [
+  (p).1 := 1: u32;
+  pp0 := &mut p;
+  var@7 := &two-phase *(pp0);
+  pp1 := move id_mut_pair<u32>(move var@7);
+  y := 2: u32;
+  var@10 := &mut y;
+  var@9 := &mut *(var@10);
+  *((pp1).0) := move var@9;
+  *((pp1).1) := 3: u32;
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  px -> ⊥ : &'_ mut (u32) ;
+  p -> (&mut@0 (0: u32), ⊥ : u32) ;
+  var@4 -> ⊥ : &'_ mut (u32) ;
+  pp0 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  pp1 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  var@7 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  y -> ⊥ : u32 ;
+  var@9 -> ⊥ : &'_ mut (u32) ;
+  var@10 -> ⊥ : &'_ mut (u32) ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  (p).1 := 1: u32
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  px -> ⊥ : &'_ mut (u32) ;
+  p -> (&mut@0 (0: u32), ⊥ : u32) ;
+  var@4 -> ⊥ : &'_ mut (u32) ;
+  pp0 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  pp1 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  var@7 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  y -> ⊥ : u32 ;
+  var@9 -> ⊥ : &'_ mut (u32) ;
+  var@10 -> ⊥ : &'_ mut (u32) ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  px -> ⊥ : &'_ mut (u32) ;
+  p -> (&mut@0 (0: u32), ⊥ : u32) ;
+  var@4 -> ⊥ : &'_ mut (u32) ;
+  pp0 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  pp1 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  var@7 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  y -> ⊥ : u32 ;
+  var@9 -> ⊥ : &'_ mut (u32) ;
+  var@10 -> ⊥ : &'_ mut (u32) ;
+}
+
+
+- op:
+1: u32
+
+[Debug] 
+**About to evaluate statement**: [
+  pp0 := &mut p;
+  var@7 := &two-phase *(pp0);
+  pp1 := move id_mut_pair<u32>(move var@7);
+  y := 2: u32;
+  var@10 := &mut y;
+  var@9 := &mut *(var@10);
+  *((pp1).0) := move var@9;
+  *((pp1).1) := 3: u32;
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  px -> ⊥ : &'_ mut (u32) ;
+  p -> (&mut@0 (0: u32), 1: u32) ;
+  var@4 -> ⊥ : &'_ mut (u32) ;
+  pp0 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  pp1 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  var@7 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  y -> ⊥ : u32 ;
+  var@9 -> ⊥ : &'_ mut (u32) ;
+  var@10 -> ⊥ : &'_ mut (u32) ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  pp0 := &mut p
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  px -> ⊥ : &'_ mut (u32) ;
+  p -> (&mut@0 (0: u32), 1: u32) ;
+  var@4 -> ⊥ : &'_ mut (u32) ;
+  pp0 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  pp1 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  var@7 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  y -> ⊥ : u32 ;
+  var@9 -> ⊥ : &'_ mut (u32) ;
+  var@10 -> ⊥ : &'_ mut (u32) ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@7 := &two-phase *(pp0);
+  pp1 := move id_mut_pair<u32>(move var@7);
+  y := 2: u32;
+  var@10 := &mut y;
+  var@9 := &mut *(var@10);
+  *((pp1).0) := move var@9;
+  *((pp1).1) := 3: u32;
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  px -> ⊥ : &'_ mut (u32) ;
+  p -> ⌊mut@1⌋ ;
+  var@4 -> ⊥ : &'_ mut (u32) ;
+  pp0 -> &mut@1 ((&mut@0 (0: u32), 1: u32)) ;
+  pp1 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  var@7 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  y -> ⊥ : u32 ;
+  var@9 -> ⊥ : &'_ mut (u32) ;
+  var@10 -> ⊥ : &'_ mut (u32) ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@7 := &two-phase *(pp0)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  px -> ⊥ : &'_ mut (u32) ;
+  p -> ⌊mut@1⌋ ;
+  var@4 -> ⊥ : &'_ mut (u32) ;
+  pp0 -> &mut@1 ((&mut@0 (0: u32), 1: u32)) ;
+  pp1 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  var@7 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  y -> ⊥ : u32 ;
+  var@9 -> ⊥ : &'_ mut (u32) ;
+  var@10 -> ⊥ : &'_ mut (u32) ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  pp1 := move id_mut_pair<u32>(move var@7);
+  y := 2: u32;
+  var@10 := &mut y;
+  var@9 := &mut *(var@10);
+  *((pp1).0) := move var@9;
+  *((pp1).1) := 3: u32;
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  px -> ⊥ : &'_ mut (u32) ;
+  p -> ⌊mut@1⌋ ;
+  var@4 -> ⊥ : &'_ mut (u32) ;
+  pp0 -> &mut@1 (@shared_loan({2}, (&mut@0 (0: u32), 1: u32))) ;
+  pp1 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  var@7 -> ⌊inactivated_mut@2⌋ ;
+  y -> ⊥ : u32 ;
+  var@9 -> ⊥ : &'_ mut (u32) ;
+  var@10 -> ⊥ : &'_ mut (u32) ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  pp1 := move id_mut_pair<u32>(move var@7)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  px -> ⊥ : &'_ mut (u32) ;
+  p -> ⌊mut@1⌋ ;
+  var@4 -> ⊥ : &'_ mut (u32) ;
+  pp0 -> &mut@1 (@shared_loan({2}, (&mut@0 (0: u32), 1: u32))) ;
+  pp1 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  var@7 -> ⌊inactivated_mut@2⌋ ;
+  y -> ⊥ : u32 ;
+  var@9 -> ⊥ : &'_ mut (u32) ;
+  var@10 -> ⊥ : &'_ mut (u32) ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  px -> ⊥ : &'_ mut (u32) ;
+  p -> ⌊mut@1⌋ ;
+  var@4 -> ⊥ : &'_ mut (u32) ;
+  pp0 -> &mut@1 (@shared_loan({2}, (&mut@0 (0: u32), 1: u32))) ;
+  pp1 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  var@7 -> ⌊inactivated_mut@2⌋ ;
+  y -> ⊥ : u32 ;
+  var@9 -> ⊥ : &'_ mut (u32) ;
+  var@10 -> ⊥ : &'_ mut (u32) ;
+}
+
+
+- op:
+move var@7
+
+[Debug] activate_inactivated_mut_borrow: resulting value:
+{ Values.value =
+  (Values.Adt
+     { Values.variant_id = <opaque>;
+       field_values =
+       [{ Values.value =
+          (Values.Borrow
+             (Values.MutBorrow (<opaque>,
+                { Values.value =
+                  (Values.Concrete
+                     (Values.Scalar { Values.value = 0; int_ty = Types.U32 }));
+                  ty = (Types.Integer Types.U32) }
+                )));
+          ty =
+          (Types.Ref (Types.Erased, (Types.Integer Types.U32), Types.Mut)) };
+         { Values.value =
+           (Values.Concrete
+              (Values.Scalar { Values.value = 1; int_ty = Types.U32 }));
+           ty = (Types.Integer Types.U32) }
+         ]
+       });
+  ty =
+  (Types.Adt (Types.Tuple, [],
+     [(Types.Ref (Types.Erased, (Types.Integer Types.U32), Types.Mut));
+       (Types.Integer Types.U32)]
+     ))
+  }
+[Debug] Value to move:
+&mut@2 ((&mut@0 (0: u32), 1: u32))
+[Debug] 
+**About to evaluate statement**: [
+  y := 2: u32;
+  var@10 := &mut y;
+  var@9 := &mut *(var@10);
+  *((pp1).0) := move var@9;
+  *((pp1).1) := 3: u32;
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  px -> ⊥ : &'_ mut (u32) ;
+  p -> ⌊mut@1⌋ ;
+  var@4 -> ⊥ : &'_ mut (u32) ;
+  pp0 -> &mut@1 (⌊mut@2⌋) ;
+  pp1 -> s@0 : &r@0 mut ((&r@0 mut (u32), u32)) ;
+  var@7 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  y -> ⊥ : u32 ;
+  var@9 -> ⊥ : &'_ mut (u32) ;
+  var@10 -> ⊥ : &'_ mut (u32) ;
+  abs@0{parents={}}{regions={0}} {
+    &mut@2 ((&mut@0 (0: u32), 1: u32)),
+    proj_loans (s@0 : &r@0 mut ((&r@0 mut (u32), u32)))
+  }
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  y := 2: u32
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  px -> ⊥ : &'_ mut (u32) ;
+  p -> ⌊mut@1⌋ ;
+  var@4 -> ⊥ : &'_ mut (u32) ;
+  pp0 -> &mut@1 (⌊mut@2⌋) ;
+  pp1 -> s@0 : &r@0 mut ((&r@0 mut (u32), u32)) ;
+  var@7 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  y -> ⊥ : u32 ;
+  var@9 -> ⊥ : &'_ mut (u32) ;
+  var@10 -> ⊥ : &'_ mut (u32) ;
+  abs@0{parents={}}{regions={0}} {
+    &mut@2 ((&mut@0 (0: u32), 1: u32)),
+    proj_loans (s@0 : &r@0 mut ((&r@0 mut (u32), u32)))
+  }
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  px -> ⊥ : &'_ mut (u32) ;
+  p -> ⌊mut@1⌋ ;
+  var@4 -> ⊥ : &'_ mut (u32) ;
+  pp0 -> &mut@1 (⌊mut@2⌋) ;
+  pp1 -> s@0 : &r@0 mut ((&r@0 mut (u32), u32)) ;
+  var@7 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  y -> ⊥ : u32 ;
+  var@9 -> ⊥ : &'_ mut (u32) ;
+  var@10 -> ⊥ : &'_ mut (u32) ;
+  abs@0{parents={}}{regions={0}} {
+    &mut@2 ((&mut@0 (0: u32), 1: u32)),
+    proj_loans (s@0 : &r@0 mut ((&r@0 mut (u32), u32)))
+  }
+}
+
+
+- op:
+2: u32
+
+[Debug] 
+**About to evaluate statement**: [
+  var@10 := &mut y;
+  var@9 := &mut *(var@10);
+  *((pp1).0) := move var@9;
+  *((pp1).1) := 3: u32;
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  px -> ⊥ : &'_ mut (u32) ;
+  p -> ⌊mut@1⌋ ;
+  var@4 -> ⊥ : &'_ mut (u32) ;
+  pp0 -> &mut@1 (⌊mut@2⌋) ;
+  pp1 -> s@0 : &r@0 mut ((&r@0 mut (u32), u32)) ;
+  var@7 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  y -> 2: u32 ;
+  var@9 -> ⊥ : &'_ mut (u32) ;
+  var@10 -> ⊥ : &'_ mut (u32) ;
+  abs@0{parents={}}{regions={0}} {
+    &mut@2 ((&mut@0 (0: u32), 1: u32)),
+    proj_loans (s@0 : &r@0 mut ((&r@0 mut (u32), u32)))
+  }
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@10 := &mut y
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  px -> ⊥ : &'_ mut (u32) ;
+  p -> ⌊mut@1⌋ ;
+  var@4 -> ⊥ : &'_ mut (u32) ;
+  pp0 -> &mut@1 (⌊mut@2⌋) ;
+  pp1 -> s@0 : &r@0 mut ((&r@0 mut (u32), u32)) ;
+  var@7 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  y -> 2: u32 ;
+  var@9 -> ⊥ : &'_ mut (u32) ;
+  var@10 -> ⊥ : &'_ mut (u32) ;
+  abs@0{parents={}}{regions={0}} {
+    &mut@2 ((&mut@0 (0: u32), 1: u32)),
+    proj_loans (s@0 : &r@0 mut ((&r@0 mut (u32), u32)))
+  }
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@9 := &mut *(var@10);
+  *((pp1).0) := move var@9;
+  *((pp1).1) := 3: u32;
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  px -> ⊥ : &'_ mut (u32) ;
+  p -> ⌊mut@1⌋ ;
+  var@4 -> ⊥ : &'_ mut (u32) ;
+  pp0 -> &mut@1 (⌊mut@2⌋) ;
+  pp1 -> s@0 : &r@0 mut ((&r@0 mut (u32), u32)) ;
+  var@7 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  y -> ⌊mut@3⌋ ;
+  var@9 -> ⊥ : &'_ mut (u32) ;
+  var@10 -> &mut@3 (2: u32) ;
+  abs@0{parents={}}{regions={0}} {
+    &mut@2 ((&mut@0 (0: u32), 1: u32)),
+    proj_loans (s@0 : &r@0 mut ((&r@0 mut (u32), u32)))
+  }
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@9 := &mut *(var@10)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  px -> ⊥ : &'_ mut (u32) ;
+  p -> ⌊mut@1⌋ ;
+  var@4 -> ⊥ : &'_ mut (u32) ;
+  pp0 -> &mut@1 (⌊mut@2⌋) ;
+  pp1 -> s@0 : &r@0 mut ((&r@0 mut (u32), u32)) ;
+  var@7 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  y -> ⌊mut@3⌋ ;
+  var@9 -> ⊥ : &'_ mut (u32) ;
+  var@10 -> &mut@3 (2: u32) ;
+  abs@0{parents={}}{regions={0}} {
+    &mut@2 ((&mut@0 (0: u32), 1: u32)),
+    proj_loans (s@0 : &r@0 mut ((&r@0 mut (u32), u32)))
+  }
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  *((pp1).0) := move var@9;
+  *((pp1).1) := 3: u32;
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  px -> ⊥ : &'_ mut (u32) ;
+  p -> ⌊mut@1⌋ ;
+  var@4 -> ⊥ : &'_ mut (u32) ;
+  pp0 -> &mut@1 (⌊mut@2⌋) ;
+  pp1 -> s@0 : &r@0 mut ((&r@0 mut (u32), u32)) ;
+  var@7 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  y -> ⌊mut@3⌋ ;
+  var@9 -> &mut@4 (2: u32) ;
+  var@10 -> &mut@3 (⌊mut@4⌋) ;
+  abs@0{parents={}}{regions={0}} {
+    &mut@2 ((&mut@0 (0: u32), 1: u32)),
+    proj_loans (s@0 : &r@0 mut ((&r@0 mut (u32), u32)))
+  }
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  *((pp1).0) := move var@9
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  px -> ⊥ : &'_ mut (u32) ;
+  p -> ⌊mut@1⌋ ;
+  var@4 -> ⊥ : &'_ mut (u32) ;
+  pp0 -> &mut@1 (⌊mut@2⌋) ;
+  pp1 -> s@0 : &r@0 mut ((&r@0 mut (u32), u32)) ;
+  var@7 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  y -> ⌊mut@3⌋ ;
+  var@9 -> &mut@4 (2: u32) ;
+  var@10 -> &mut@3 (⌊mut@4⌋) ;
+  abs@0{parents={}}{regions={0}} {
+    &mut@2 ((&mut@0 (0: u32), 1: u32)),
+    proj_loans (s@0 : &r@0 mut ((&r@0 mut (u32), u32)))
+  }
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  px -> ⊥ : &'_ mut (u32) ;
+  p -> ⌊mut@1⌋ ;
+  var@4 -> ⊥ : &'_ mut (u32) ;
+  pp0 -> &mut@1 (⌊mut@2⌋) ;
+  pp1 -> s@0 : &r@0 mut ((&r@0 mut (u32), u32)) ;
+  var@7 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  y -> ⌊mut@3⌋ ;
+  var@9 -> &mut@4 (2: u32) ;
+  var@10 -> &mut@3 (⌊mut@4⌋) ;
+  abs@0{parents={}}{regions={0}} {
+    &mut@2 ((&mut@0 (0: u32), 1: u32)),
+    proj_loans (s@0 : &r@0 mut ((&r@0 mut (u32), u32)))
+  }
+}
+
+
+- op:
+move var@9
+
+[Debug] Value to move:
+&mut@4 (2: u32)
+[Debug] 
+**About to evaluate statement**: [
+  *((pp1).1) := 3: u32;
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  px -> ⊥ : &'_ mut (u32) ;
+  p -> ⌊mut@1⌋ ;
+  var@4 -> ⊥ : &'_ mut (u32) ;
+  pp0 -> &mut@1 (⌊mut@2⌋) ;
+  pp1 -> &mut@5 ((&mut@4 (2: u32), s@3 : u32)) ;
+  var@7 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  y -> ⌊mut@3⌋ ;
+  var@9 -> ⊥ : &'_ mut (u32) ;
+  var@10 -> &mut@3 (⌊mut@4⌋) ;
+  abs@0{parents={}}{regions={0}} {
+    &mut@2 ((&mut@0 (0: u32), 1: u32)),
+    ⌊mut@5, (proj_loans (s@2 : &r@0 mut (u32)), proj_loans (s@3 : u32))⌋
+  }
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  *((pp1).1) := 3: u32
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  px -> ⊥ : &'_ mut (u32) ;
+  p -> ⌊mut@1⌋ ;
+  var@4 -> ⊥ : &'_ mut (u32) ;
+  pp0 -> &mut@1 (⌊mut@2⌋) ;
+  pp1 -> &mut@5 ((&mut@4 (2: u32), s@3 : u32)) ;
+  var@7 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  y -> ⌊mut@3⌋ ;
+  var@9 -> ⊥ : &'_ mut (u32) ;
+  var@10 -> &mut@3 (⌊mut@4⌋) ;
+  abs@0{parents={}}{regions={0}} {
+    &mut@2 ((&mut@0 (0: u32), 1: u32)),
+    ⌊mut@5, (proj_loans (s@2 : &r@0 mut (u32)), proj_loans (s@3 : u32))⌋
+  }
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  px -> ⊥ : &'_ mut (u32) ;
+  p -> ⌊mut@1⌋ ;
+  var@4 -> ⊥ : &'_ mut (u32) ;
+  pp0 -> &mut@1 (⌊mut@2⌋) ;
+  pp1 -> &mut@5 ((&mut@4 (2: u32), s@3 : u32)) ;
+  var@7 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  y -> ⌊mut@3⌋ ;
+  var@9 -> ⊥ : &'_ mut (u32) ;
+  var@10 -> &mut@3 (⌊mut@4⌋) ;
+  abs@0{parents={}}{regions={0}} {
+    &mut@2 ((&mut@0 (0: u32), 1: u32)),
+    ⌊mut@5, (proj_loans (s@2 : &r@0 mut (u32)), proj_loans (s@3 : u32))⌋
+  }
+}
+
+
+- op:
+3: u32
+
+[Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : () ;
+  x -> ⌊mut@0⌋ ;
+  px -> ⊥ : &'_ mut (u32) ;
+  p -> ⌊mut@1⌋ ;
+  var@4 -> ⊥ : &'_ mut (u32) ;
+  pp0 -> &mut@1 (⌊mut@2⌋) ;
+  pp1 -> &mut@5 ((&mut@4 (2: u32), 3: u32)) ;
+  var@7 -> ⊥ : &'_ mut ((&'_ mut (u32), u32)) ;
+  y -> ⌊mut@3⌋ ;
+  var@9 -> ⊥ : &'_ mut (u32) ;
+  var@10 -> &mut@3 (⌊mut@4⌋) ;
+  abs@0{parents={}}{regions={0}} {
+    &mut@2 ((&mut@0 (0: u32), 1: u32)),
+    ⌊mut@5, (proj_loans (s@2 : &r@0 mut (u32)), proj_loans (s@3 : u32))⌋
+  }
+}
+
+
+
+[Debug] test_function_symbolic: id_mut_mut_pair
+[Debug] 
+**About to evaluate statement**: [
+  var@2 := &mut *(x);
+  var@0 := &mut *(var@2);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  abs@0{parents={}}{regions={0}} {
+    proj_loans (s@0 : &r@0 mut (&r@0 mut ((&r@0 mut (T), u32))))
+  }
+  var@0 -> ⊥ : &'_ mut (&'_ mut ((&'_ mut (T), u32))) ;
+  x -> s@0 : &r@0 mut (&r@0 mut ((&r@0 mut (T), u32))) ;
+  var@2 -> ⊥ : &'_ mut (&'_ mut ((&'_ mut (T), u32))) ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@2 := &mut *(x)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  abs@0{parents={}}{regions={0}} {
+    proj_loans (s@0 : &r@0 mut (&r@0 mut ((&r@0 mut (T), u32))))
+  }
+  var@0 -> ⊥ : &'_ mut (&'_ mut ((&'_ mut (T), u32))) ;
+  x -> s@0 : &r@0 mut (&r@0 mut ((&r@0 mut (T), u32))) ;
+  var@2 -> ⊥ : &'_ mut (&'_ mut ((&'_ mut (T), u32))) ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@0 := &mut *(var@2);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  abs@0{parents={}}{regions={0}} {
+    ⌊mut@0, proj_loans (s@1 : &r@0 mut ((&r@0 mut (T), u32)))⌋
+  }
+  var@0 -> ⊥ : &'_ mut (&'_ mut ((&'_ mut (T), u32))) ;
+  x -> &mut@0 (⌊mut@1⌋) ;
+  var@2 -> &mut@1 (s@1 : &r@0 mut ((&r@0 mut (T), u32))) ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@0 := &mut *(var@2)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  abs@0{parents={}}{regions={0}} {
+    ⌊mut@0, proj_loans (s@1 : &r@0 mut ((&r@0 mut (T), u32)))⌋
+  }
+  var@0 -> ⊥ : &'_ mut (&'_ mut ((&'_ mut (T), u32))) ;
+  x -> &mut@0 (⌊mut@1⌋) ;
+  var@2 -> &mut@1 (s@1 : &r@0 mut ((&r@0 mut (T), u32))) ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  abs@0{parents={}}{regions={0}} {
+    ⌊mut@0, proj_loans (s@1 : &r@0 mut ((&r@0 mut (T), u32)))⌋
+  }
+  var@0 -> &mut@2 (s@1 : &r@0 mut ((&r@0 mut (T), u32))) ;
+  x -> &mut@0 (⌊mut@1⌋) ;
+  var@2 -> &mut@1 (⌊mut@2⌋) ;
+}
+
+
+
+[Debug] test_function_symbolic: id_mut_mut_mut_same
+[Debug] 
+**About to evaluate statement**: [
+  var@2 := &mut *(x);
+  var@0 := &mut *(var@2);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  abs@0{parents={}}{regions={0}} {
+    proj_loans (s@0 : &r@0 mut (&r@0 mut (&r@0 mut (u32))))
+  }
+  var@0 -> ⊥ : &'_ mut (&'_ mut (&'_ mut (u32))) ;
+  x -> s@0 : &r@0 mut (&r@0 mut (&r@0 mut (u32))) ;
+  var@2 -> ⊥ : &'_ mut (&'_ mut (&'_ mut (u32))) ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@2 := &mut *(x)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  abs@0{parents={}}{regions={0}} {
+    proj_loans (s@0 : &r@0 mut (&r@0 mut (&r@0 mut (u32))))
+  }
+  var@0 -> ⊥ : &'_ mut (&'_ mut (&'_ mut (u32))) ;
+  x -> s@0 : &r@0 mut (&r@0 mut (&r@0 mut (u32))) ;
+  var@2 -> ⊥ : &'_ mut (&'_ mut (&'_ mut (u32))) ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@0 := &mut *(var@2);
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  abs@0{parents={}}{regions={0}} {
+    ⌊mut@0, proj_loans (s@1 : &r@0 mut (&r@0 mut (u32)))⌋
+  }
+  var@0 -> ⊥ : &'_ mut (&'_ mut (&'_ mut (u32))) ;
+  x -> &mut@0 (⌊mut@1⌋) ;
+  var@2 -> &mut@1 (s@1 : &r@0 mut (&r@0 mut (u32))) ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@0 := &mut *(var@2)
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  abs@0{parents={}}{regions={0}} {
+    ⌊mut@0, proj_loans (s@1 : &r@0 mut (&r@0 mut (u32)))⌋
+  }
+  var@0 -> ⊥ : &'_ mut (&'_ mut (&'_ mut (u32))) ;
+  x -> &mut@0 (⌊mut@1⌋) ;
+  var@2 -> &mut@1 (s@1 : &r@0 mut (&r@0 mut (u32))) ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  abs@0{parents={}}{regions={0}} {
+    ⌊mut@0, proj_loans (s@1 : &r@0 mut (&r@0 mut (u32)))⌋
+  }
+  var@0 -> &mut@2 (s@1 : &r@0 mut (&r@0 mut (u32))) ;
+  x -> &mut@0 (⌊mut@1⌋) ;
+  var@2 -> &mut@1 (⌊mut@2⌋) ;
+}
+
+
+
+[Debug] test_function_symbolic: id_borrow1
+[Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  abs@0{parents={}}{regions={0}} {
+    proj_loans (s@0 : &r@0 mut (&r@1 (u32))),
+    proj_loans (s@1 : &r@0 (&r@0 mut (u32)))
+  }
+  abs@1{parents={0}}{regions={1}} {
+    proj_loans (s@0 : &r@0 mut (&r@1 (u32))),
+    proj_loans (s@1 : &r@0 (&r@0 mut (u32)))
+  }
+  var@0 -> ⊥ : () ;
+  _x -> s@0 : &r@0 mut (&r@1 (u32)) ;
+  _y -> s@1 : &r@0 (&r@0 mut (u32)) ;
+}
+
+
+
+[Debug] test_function_symbolic: test_static
+[Debug] 
+**About to evaluate statement**: [
+  var@0 := copy x;
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : &'_ (u32) ;
+  x -> s@0 : &'static (u32) ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@0 := copy x
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : &'_ (u32) ;
+  x -> s@0 : &'static (u32) ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : &'_ (u32) ;
+  x -> s@0 : &'static (u32) ;
+}
+
+
+- op:
+copy x
+
+[Debug] Value to copy:
+s@0 : &'static (u32)
+[Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> s@0 : &'static (u32) ;
+  x -> s@0 : &'static (u32) ;
+}
+
+
+
+[Debug] test_function_symbolic: test_char
+[Debug] 
+**About to evaluate statement**: [
+  var@0 := a;
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : char ;
+}
+
+
+
+[Debug] 
+**About to evaluate statement**: [
+  var@0 := a
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : char ;
+}
+
+
+
+[Debug] eval_operand:
+- ctx:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> ⊥ : char ;
+}
+
+
+- op:
+a
+
+[Debug] 
+**About to evaluate statement**: [
+  return
+]
+
+**Context**:
+# Ended regions: {}
+# 1 frame(s)
+
+# Frame 0:
+{
+  var@0 -> a ;
+}
+
+