File "bench/check-ce/while.mlw", line 10, characters 25-32:
Sub-goal Loop invariant init of goal f'vc.
Prover result is: Valid.

File "bench/check-ce/while.mlw", line 9, characters 14-19:
Sub-goal Loop variant decrease of goal f'vc.
Prover result is: Valid.

<check_ce:categorization>Categorizations of models:
- Selected model 0: SW
  - Concrete RAC: NORMAL
  - Abstract RAC: FAILURE (loop invariant preservation at "bench/check-ce/while.mlw", line 10, characters 16-32)
- Checked model 1: BAD_CE
  - Concrete RAC: NORMAL
  - Abstract RAC: STUCK (when reaching the end of a loop iteration at "bench/check-ce/while.mlw", line 8, character 2 to line 16, character 6)
File "bench/check-ce/while.mlw", line 10, characters 25-32:
Sub-goal Loop invariant preservation of goal f'vc.
Prover result is: Unknown or time/memory/step limit.
The contracts of some function or loop are too weak, for example during the
  following execution:
File int.mlw:
  Line 13:
    Constant zero initialization
    zero = 0
  Line 14:
    Constant one initialization
    one = 1
File while.mlw:
  Line 4:
    z = 2
    z = 2
    Execution of main function `f` with env:
      z = 2
      zero = 0
      one = 1
  Line 5:
    Giant-step execution of function `ref` with args:
      contents = 2
    result of `ref` = {contents= 2}
  Line 6:
    Giant-step execution of function `ref` with args:
      contents = 0
    result of `ref` = {contents= 0}
  Line 7:
    Giant-step execution of function `ref` with args:
      contents = 0
    result of `ref` = {contents= 0}
  Line 8:
    Giant-step iteration of loop
    x1 = {contents= (- 2)}
    x2 = {contents= 175}
    i = {contents= 0}
    Normal execution of function `contents` with args:
      arg = {contents= 0}
    Normal execution of function `(<)` with args:
      _ = 0
      _ = 2
    Normal iteration of loop
  Line 11:
    Normal execution of function `contents` with args:
      arg = {contents= 0}
    Normal execution of function `(=)` with args:
      x = 0
      y = 0
  Line 12:
    Normal execution of function `contents` with args:
      arg = {contents= (- 2)}
    Normal execution of function `(+)` with args:
      _ = (- 2)
      _ = 1
  Line 15:
    Normal execution of function `contents` with args:
      arg = {contents= 0}
    Normal execution of function `(+)` with args:
      _ = 0
      _ = 1
  Line 10:
    Property failure at loop invariant preservation with:
      x1 = {contents= (-1)}
      i = {contents= 1}

