File "bench/check-ce/615.mlw", line 2, characters 9-10:
warning: unused variable t
<check-ce>Check model 0 ("bench/check-ce/615.mlw", line 3, characters 12-28)
<check-ce>Checking model:
          File 615.mlw:
            Line 2:
              x = {"type": "Integer", "val": "1"}
            Line 3:
              x = {"type": "Integer", "val": "1"}
<check-ce>Giant-step RAC
<rac-values>RHS evaluated for global `zero` at "WHY3DATA/stdlib/int.mlw", line 13, characters 15-19: 0
<rac-values>RHS evaluated for global `one` at "WHY3DATA/stdlib/int.mlw", line 14, characters 15-18: 1
<rac-values>Type default value for parameter `t` at "bench/check-ce/615.mlw", line 2, characters 9-10: 0
<rac-values>Value from model for parameter `x` at "bench/check-ce/615.mlw", line 2, characters 19-20: 1
<check-ce>Normal RAC
<rac-values>RHS evaluated for global `zero` at "WHY3DATA/stdlib/int.mlw", line 13, characters 15-19: 0
<rac-values>RHS evaluated for global `one` at "WHY3DATA/stdlib/int.mlw", line 14, characters 15-18: 1
<rac-values>Type default value for parameter `t` at "bench/check-ce/615.mlw", line 2, characters 9-10: 0
<rac-values>Value from model for parameter `x` at "bench/check-ce/615.mlw", line 2, characters 19-20: 1
<check-ce>Result of checking model 0: NC
            - Concrete RAC: FAILURE (check at "bench/check-ce/615.mlw", line 3, characters 12-28)
              File int.mlw:
                Line 13:
                  Constant zero initialization
                  zero = 0
                Line 14:
                  Constant one initialization
                  one = 1
              File 615.mlw:
                Line 2:
                  t = 0
                  x = 1
                  t = 0
                  x = 1
                  Execution of main function `f` with env:
                    t = 0
                    x = 1
                    zero = 0
                    one = 1
                Line 3:
                  Property failure at check with:
                    x = 1
            - Abstract RAC: FAILURE (check at "bench/check-ce/615.mlw", line 3, characters 12-28)
              File int.mlw:
                Line 13:
                  Constant zero initialization
                  zero = 0
                Line 14:
                  Constant one initialization
                  one = 1
              File 615.mlw:
                Line 2:
                  t = 0
                  x = 1
                  t = 0
                  x = 1
                  Execution of main function `f` with env:
                    t = 0
                    x = 1
                    zero = 0
                    one = 1
                Line 3:
                  Property failure at check with:
                    x = 1
<check-ce>Check model 1 ("bench/check-ce/615.mlw", line 3, characters 12-28)
<check-ce>Checking model:
          File 615.mlw:
            Line 2:
              x = {"type": "Integer", "val": "1"}
            Line 3:
              x = {"type": "Integer", "val": "1"}
<check-ce>Giant-step RAC
<rac-values>RHS evaluated for global `zero` at "WHY3DATA/stdlib/int.mlw", line 13, characters 15-19: 0
<rac-values>RHS evaluated for global `one` at "WHY3DATA/stdlib/int.mlw", line 14, characters 15-18: 1
<rac-values>Type default value for parameter `t` at "bench/check-ce/615.mlw", line 2, characters 9-10: 0
<rac-values>Value from model for parameter `x` at "bench/check-ce/615.mlw", line 2, characters 19-20: 1
<check-ce>Normal RAC
<rac-values>RHS evaluated for global `zero` at "WHY3DATA/stdlib/int.mlw", line 13, characters 15-19: 0
<rac-values>RHS evaluated for global `one` at "WHY3DATA/stdlib/int.mlw", line 14, characters 15-18: 1
<rac-values>Type default value for parameter `t` at "bench/check-ce/615.mlw", line 2, characters 9-10: 0
<rac-values>Value from model for parameter `x` at "bench/check-ce/615.mlw", line 2, characters 19-20: 1
<check-ce>Result of checking model 1: NC
            - Concrete RAC: FAILURE (check at "bench/check-ce/615.mlw", line 3, characters 12-28)
              File int.mlw:
                Line 13:
                  Constant zero initialization
                  zero = 0
                Line 14:
                  Constant one initialization
                  one = 1
              File 615.mlw:
                Line 2:
                  t = 0
                  x = 1
                  t = 0
                  x = 1
                  Execution of main function `f` with env:
                    t = 0
                    x = 1
                    zero = 0
                    one = 1
                Line 3:
                  Property failure at check with:
                    x = 1
            - Abstract RAC: FAILURE (check at "bench/check-ce/615.mlw", line 3, characters 12-28)
              File int.mlw:
                Line 13:
                  Constant zero initialization
                  zero = 0
                Line 14:
                  Constant one initialization
                  one = 1
              File 615.mlw:
                Line 2:
                  t = 0
                  x = 1
                  t = 0
                  x = 1
                  Execution of main function `f` with env:
                    t = 0
                    x = 1
                    zero = 0
                    one = 1
                Line 3:
                  Property failure at check with:
                    x = 1
<check-ce-summary>Results:
- Selected model 0: NC
  - Concrete RAC: FAILURE (check at "bench/check-ce/615.mlw", line 3, characters 12-28)
  - Abstract RAC: FAILURE (check at "bench/check-ce/615.mlw", line 3, characters 12-28)
- Checked model 1: NC
  - Concrete RAC: FAILURE (check at "bench/check-ce/615.mlw", line 3, characters 12-28)
  - Abstract RAC: FAILURE (check at "bench/check-ce/615.mlw", line 3, characters 12-28)
File "bench/check-ce/615.mlw", line 3, characters 12-28:
Sub-goal Check of goal f'vc.
Prover result is: Unknown (sat) (0.01s, 723 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 615.mlw:
  Line 2:
    t = 0
    x = 1
    t = 0
    x = 1
    Execution of main function `f` with env:
      t = 0
      x = 1
      zero = 0
      one = 1
  Line 3:
    Property failure at check with:
      x = 1

