File "bench/check-ce/loop_ce.mlw", line 16, characters 16-25:
Sub-goal Loop invariant init of goal f'vc.
Prover result is: Valid (313 steps).

File "bench/check-ce/loop_ce.mlw", line 15, characters 14-20:
Sub-goal Loop variant decrease of goal f'vc.
Prover result is: Valid (656 steps).

<check_ce:categorization>Categorizations of models:
- Selected model 0: NC
  - Concrete RAC: FAILURE (loop invariant preservation at "bench/check-ce/loop_ce.mlw", line 16, characters 16-25)
  - Abstract RAC: FAILURE (loop invariant preservation at "bench/check-ce/loop_ce.mlw", line 16, characters 16-25)
- Checked model 1: NC
  - Concrete RAC: FAILURE (loop invariant preservation at "bench/check-ce/loop_ce.mlw", line 16, characters 16-25)
  - Abstract RAC: FAILURE (loop invariant preservation at "bench/check-ce/loop_ce.mlw", line 16, characters 16-25)
File "bench/check-ce/loop_ce.mlw", line 16, characters 16-25:
Sub-goal Loop invariant preservation of goal f'vc.
Prover result is: Unknown (unknown + incomplete) (634 steps).
The program does not comply to the verification goal, for example during the
  following execution:
File int.mlw:
  Line 13:
    Constant zero initialization
    zero = 0
  Line 14:
    Constant one initialization
    one = 1
File loop_ce.mlw:
  Line 6:
    Constant a initialization
    Normal execution of function `ref` with args:
      contents = 0
    Normal execution of function `ref'mk` with args:
      contents = 0
    a = {contents= 0}
  Line 8:
    Constant b initialization
    Normal execution of function `ref` with args:
      contents = 0
    Normal execution of function `ref'mk` with args:
      contents = 0
    b = {contents= 0}
Unknown location:
    _ = ()
File loop_ce.mlw:
  Line 10:
    _ = ()
    Execution of main function `f` with env:
      a = {contents= 0}
      b = {contents= 0}
      _ = ()
      zero = 0
      one = 1
  Line 14:
    Normal execution of function `contents` with args:
      arg = {contents= 2}
    Normal execution of function `(<)` with args:
      _ = 2
      _ = 10
    Normal iteration of loop
  Line 17:
    Normal execution of function `contents` with args:
      arg = {contents= 1}
    Normal execution of function `contents` with args:
      arg = {contents= 2}
    Normal execution of function `(+)` with args:
      _ = 2
      _ = 1
  Line 14:
    Normal execution of function `contents` with args:
      arg = {contents= 3}
    Normal execution of function `(<)` with args:
      _ = 3
      _ = 10
    Normal iteration of loop
  Line 17:
    Normal execution of function `contents` with args:
      arg = {contents= 1}
    Normal execution of function `contents` with args:
      arg = {contents= 3}
    Normal execution of function `(+)` with args:
      _ = 3
      _ = 1
  Line 14:
    Normal execution of function `contents` with args:
      arg = {contents= 4}
    Normal execution of function `(<)` with args:
      _ = 4
      _ = 10
    Normal iteration of loop
  Line 17:
    Normal execution of function `contents` with args:
      arg = {contents= 1}
    Normal execution of function `contents` with args:
      arg = {contents= 4}
    Normal execution of function `(+)` with args:
      _ = 4
      _ = 1
  Line 14:
    Normal execution of function `contents` with args:
      arg = {contents= 5}
    Normal execution of function `(<)` with args:
      _ = 5
      _ = 10
    Normal iteration of loop
  Line 17:
    Normal execution of function `contents` with args:
      arg = {contents= 1}
    Normal execution of function `contents` with args:
      arg = {contents= 5}
    Normal execution of function `(+)` with args:
      _ = 5
      _ = 1
  Line 16:
    Property failure at loop invariant preservation with:
      a = {contents= 1}
      b = {contents= 6}

<check_ce:categorization>Categorizations of models:
- Selected model 0: NC
  - Concrete RAC: FAILURE (assertion at "bench/check-ce/loop_ce.mlw", line 31, characters 11-21)
  - Abstract RAC: FAILURE (assertion at "bench/check-ce/loop_ce.mlw", line 31, characters 11-21)
- Checked model 1: NC
  - Concrete RAC: FAILURE (assertion at "bench/check-ce/loop_ce.mlw", line 31, characters 11-21)
  - Abstract RAC: FAILURE (assertion at "bench/check-ce/loop_ce.mlw", line 31, characters 11-21)
File "bench/check-ce/loop_ce.mlw", line 31, characters 11-21:
Sub-goal Assertion of goal g'vc.
Prover result is: Unknown (unknown + incomplete) (554 steps).
The program does not comply to the verification goal, for example during the
  following execution:
File int.mlw:
  Line 13:
    Constant zero initialization
    zero = 0
  Line 14:
    Constant one initialization
    one = 1
File loop_ce.mlw:
  Line 26:
    a = {contents= (- 1)}
    a = {contents= (- 1)}
    Execution of main function `g` with env:
      a = {contents= (- 1)}
      zero = 0
      one = 1
  Line 30:
    Normal execution of function `contents` with args:
      arg = {contents= (- 1)}
    Normal execution of function `(=)` with args:
      x = (- 1)
      y = 10
Unknown location:
    Normal execution of function `True` with args:
File loop_ce.mlw:
  Line 30:
    Normal execution of function `contents` with args:
      arg = {contents= (- 1)}
    Normal execution of function `(+)` with args:
      _ = (- 1)
      _ = 1
  Line 31:
    Property failure at assertion with:
      a = {contents= 0}
      a = ref'mk (- 1)

<check_ce:categorization>Categorizations of models:
- Selected model 0: NC
  - Concrete RAC: FAILURE (postcondition at "bench/check-ce/loop_ce.mlw", line 27, characters 12-25)
  - Abstract RAC: FAILURE (postcondition at "bench/check-ce/loop_ce.mlw", line 27, characters 12-25)
- Checked model 1: NC
  - Concrete RAC: FAILURE (postcondition at "bench/check-ce/loop_ce.mlw", line 27, characters 12-25)
  - Abstract RAC: FAILURE (postcondition at "bench/check-ce/loop_ce.mlw", line 27, characters 12-25)
File "bench/check-ce/loop_ce.mlw", line 27, characters 12-25:
Sub-goal Postcondition of goal g'vc.
Prover result is: Unknown (unknown + incomplete) (502 steps).
The program does not comply to the verification goal, for example during the
  following execution:
File int.mlw:
  Line 13:
    Constant zero initialization
    zero = 0
  Line 14:
    Constant one initialization
    one = 1
File loop_ce.mlw:
  Line 26:
    a = {contents= 10}
    a = {contents= 10}
    Execution of main function `g` with env:
      a = {contents= 10}
      zero = 0
      one = 1
  Line 30:
    Normal execution of function `contents` with args:
      arg = {contents= 10}
    Normal execution of function `(=)` with args:
      x = 10
      y = 10
Unknown location:
    Normal execution of function `False` with args:
File loop_ce.mlw:
  Line 30:
    Normal execution of function `Tuple0` with args:
  Line 27:
    Property failure at postcondition of `g` with:
      a = {contents= 10}
      a = {contents= 10}

