File "bench/check-ce/func_call5.mlw", line 8, characters 12-24:
Sub-goal Postcondition of goal g1'vc.
Prover result is: Valid (0.05s, 1241 steps).

File "bench/check-ce/func_call5.mlw", line 14, characters 10-14:
Sub-goal Precondition of goal f1'vc.
Prover result is: Valid (0.02s, 839 steps).

<check-ce>Check model 0 ("bench/check-ce/func_call5.mlw", line 15, characters 11-17)
<check-ce>Checking model:
          File func_call5.mlw:
            Line 8:
              x = {"type": "Integer", "val": "1"}
              z =
                {"type": "Record",
                 "val":
                  {"Field":
                    [{"field": "contents",
                      "value": {"type": "Integer", "val": "2"}}]}}
            Line 11:
              x = {"type": "Integer", "val": "1"}
            Line 14:
              z =
                {"type": "Record",
                 "val":
                  {"Field":
                    [{"field": "contents",
                      "value": {"type": "Integer", "val": "2"}}]}}
            Line 15:
              x = {"type": "Integer", "val": "1"}
              z =
                {"type": "Record",
                 "val":
                  {"Field":
                    [{"field": "contents",
                      "value": {"type": "Integer", "val": "2"}}]}}
<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>Value from model for parameter `x` at "bench/check-ce/func_call5.mlw", line 11, characters 8-9: 1
<rac-values>No value for return value of call to g1 at "bench/check-ce/func_call5.mlw", line 14, characters 10-14 at "bench/check-ce/func_call5.mlw", line 14, characters 10-14
<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>Value from model for parameter `x` at "bench/check-ce/func_call5.mlw", line 11, characters 8-9: 1
<check-ce>Result of checking model 0: INCOMPLETE
            - Concrete RAC: NORMAL
              File int.mlw:
                Line 13:
                  Constant zero initialization
                  zero = 0
                Line 14:
                  Constant one initialization
                  one = 1
              File func_call5.mlw:
                Line 11:
                  x = 1
                  x = 1
                  Execution of main function `f1` with env:
                    x = 1
                    zero = 0
                    one = 1
                Line 14:
                  Normal execution of function `g1` with args:
                    y = 1
                Line 9:
                  Normal execution of function `ref` with args:
                    contents = 1
                  Normal execution of function `ref'mk` with args:
                    contents = 1
                Line 11:
                  Execution of main function terminated normally
            - Abstract RAC: INCOMPLETE (terminated because missing value for return value of call to g1 at "bench/check-ce/func_call5.mlw", line 14, characters 10-14)
              
<check-ce>Check model 1 ("bench/check-ce/func_call5.mlw", line 15, characters 11-17)
<check-ce>Checking model:
          File func_call5.mlw:
            Line 8:
              x = {"type": "Integer", "val": "1"}
              z =
                {"type": "Record",
                 "val":
                  {"Field":
                    [{"field": "contents",
                      "value": {"type": "Integer", "val": "2"}}]}}
            Line 11:
              x = {"type": "Integer", "val": "1"}
            Line 14:
              z =
                {"type": "Record",
                 "val":
                  {"Field":
                    [{"field": "contents",
                      "value": {"type": "Integer", "val": "2"}}]}}
            Line 15:
              x = {"type": "Integer", "val": "1"}
              z =
                {"type": "Record",
                 "val":
                  {"Field":
                    [{"field": "contents",
                      "value": {"type": "Integer", "val": "2"}}]}}
<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>Value from model for parameter `x` at "bench/check-ce/func_call5.mlw", line 11, characters 8-9: 1
<rac-values>No value for return value of call to g1 at "bench/check-ce/func_call5.mlw", line 14, characters 10-14 at "bench/check-ce/func_call5.mlw", line 14, characters 10-14
<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>Value from model for parameter `x` at "bench/check-ce/func_call5.mlw", line 11, characters 8-9: 1
<check-ce>Result of checking model 1: INCOMPLETE
            - Concrete RAC: NORMAL
              File int.mlw:
                Line 13:
                  Constant zero initialization
                  zero = 0
                Line 14:
                  Constant one initialization
                  one = 1
              File func_call5.mlw:
                Line 11:
                  x = 1
                  x = 1
                  Execution of main function `f1` with env:
                    x = 1
                    zero = 0
                    one = 1
                Line 14:
                  Normal execution of function `g1` with args:
                    y = 1
                Line 9:
                  Normal execution of function `ref` with args:
                    contents = 1
                  Normal execution of function `ref'mk` with args:
                    contents = 1
                Line 11:
                  Execution of main function terminated normally
            - Abstract RAC: INCOMPLETE (terminated because missing value for return value of call to g1 at "bench/check-ce/func_call5.mlw", line 14, characters 10-14)
              
<check-ce-summary>Results:
- Checked model 0: INCOMPLETE
  - Concrete RAC: NORMAL
  - Abstract RAC: INCOMPLETE (terminated because missing value for return value of call to g1 at "bench/check-ce/func_call5.mlw", line 14, characters 10-14)
- Selected model 1: INCOMPLETE
  - Concrete RAC: NORMAL
  - Abstract RAC: INCOMPLETE (terminated because missing value for return value of call to g1 at "bench/check-ce/func_call5.mlw", line 14, characters 10-14)
File "bench/check-ce/func_call5.mlw", line 15, characters 11-17:
Sub-goal Assertion of goal f1'vc.
Prover result is: Unknown (unknown + incomplete) (0.04s, 6499 steps).
The following counterexample model could not be verified
  (abstract RAC terminated because missing value for return value of call to g1 at "bench/check-ce/func_call5.mlw", line 14, characters 10-14):
File func_call5.mlw:
  Line 8:
    x = 1
    z = 2
  Line 11:
    x = 1
  Line 14:
    z = 2
  Line 15:
    x = 1
    z = 2

<check-ce>Check model 0 ("bench/check-ce/func_call5.mlw", line 21, characters 11-17)
<check-ce>Checking model:
          File func_call5.mlw:
            Line 19:
              x = {"type": "Integer", "val": "0"}
            Line 21:
              x = {"type": "Integer", "val": "0"}
<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>Value from model for parameter `x` at "bench/check-ce/func_call5.mlw", line 19, characters 8-9: 0
<rac-values>Value computed from postcondition for return value of call to g2 at "bench/check-ce/func_call5.mlw", line 20, characters 10-14 at "bench/check-ce/func_call5.mlw", line 20, characters 10-14: {contents=
                                                                    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>Value from model for parameter `x` at "bench/check-ce/func_call5.mlw", line 19, characters 8-9: 0
<check-ce>Result of checking model 0: NC
            - Concrete RAC: FAILURE (assertion at "bench/check-ce/func_call5.mlw", line 21, characters 11-17)
              File int.mlw:
                Line 13:
                  Constant zero initialization
                  zero = 0
                Line 14:
                  Constant one initialization
                  one = 1
              File func_call5.mlw:
                Line 19:
                  x = 0
                  x = 0
                  Execution of main function `f2` with env:
                    x = 0
                    zero = 0
                    one = 1
                Line 20:
                  Normal execution of function `g2` with args:
                    y = 0
                Line 17:
                  Normal execution of function `(+)` with args:
                    _ = 0
                    _ = 1
                  Normal execution of function `ref` with args:
                    contents = 1
                  Normal execution of function `ref'mk` with args:
                    contents = 1
                Line 21:
                  Property failure at assertion with:
                    x = 0
                    z = {contents= 1}
            - Abstract RAC: FAILURE (assertion at "bench/check-ce/func_call5.mlw", line 21, characters 11-17)
              File int.mlw:
                Line 13:
                  Constant zero initialization
                  zero = 0
                Line 14:
                  Constant one initialization
                  one = 1
              File func_call5.mlw:
                Line 19:
                  x = 0
                  x = 0
                  Execution of main function `f2` with env:
                    x = 0
                    zero = 0
                    one = 1
                Line 20:
                  Giant-step execution of function `g2` with args:
                    y = 0
                  result of `g2` = {contents= 1}
                Line 21:
                  Property failure at assertion with:
                    x = 0
                    z = {contents= 1}
<check-ce>Check model 1 ("bench/check-ce/func_call5.mlw", line 21, characters 11-17)
<check-ce>Checking model:
          File func_call5.mlw:
            Line 19:
              x = {"type": "Integer", "val": "0"}
            Line 21:
              x = {"type": "Integer", "val": "0"}
<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>Value from model for parameter `x` at "bench/check-ce/func_call5.mlw", line 19, characters 8-9: 0
<rac-values>Value computed from postcondition for return value of call to g2 at "bench/check-ce/func_call5.mlw", line 20, characters 10-14 at "bench/check-ce/func_call5.mlw", line 20, characters 10-14: {contents=
                                                                    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>Value from model for parameter `x` at "bench/check-ce/func_call5.mlw", line 19, characters 8-9: 0
<check-ce>Result of checking model 1: NC
            - Concrete RAC: FAILURE (assertion at "bench/check-ce/func_call5.mlw", line 21, characters 11-17)
              File int.mlw:
                Line 13:
                  Constant zero initialization
                  zero = 0
                Line 14:
                  Constant one initialization
                  one = 1
              File func_call5.mlw:
                Line 19:
                  x = 0
                  x = 0
                  Execution of main function `f2` with env:
                    x = 0
                    zero = 0
                    one = 1
                Line 20:
                  Normal execution of function `g2` with args:
                    y = 0
                Line 17:
                  Normal execution of function `(+)` with args:
                    _ = 0
                    _ = 1
                  Normal execution of function `ref` with args:
                    contents = 1
                  Normal execution of function `ref'mk` with args:
                    contents = 1
                Line 21:
                  Property failure at assertion with:
                    x = 0
                    z = {contents= 1}
            - Abstract RAC: FAILURE (assertion at "bench/check-ce/func_call5.mlw", line 21, characters 11-17)
              File int.mlw:
                Line 13:
                  Constant zero initialization
                  zero = 0
                Line 14:
                  Constant one initialization
                  one = 1
              File func_call5.mlw:
                Line 19:
                  x = 0
                  x = 0
                  Execution of main function `f2` with env:
                    x = 0
                    zero = 0
                    one = 1
                Line 20:
                  Giant-step execution of function `g2` with args:
                    y = 0
                  result of `g2` = {contents= 1}
                Line 21:
                  Property failure at assertion with:
                    x = 0
                    z = {contents= 1}
<check-ce-summary>Results:
- Selected model 0: NC
  - Concrete RAC: FAILURE (assertion at "bench/check-ce/func_call5.mlw", line 21, characters 11-17)
  - Abstract RAC: FAILURE (assertion at "bench/check-ce/func_call5.mlw", line 21, characters 11-17)
- Checked model 1: NC
  - Concrete RAC: FAILURE (assertion at "bench/check-ce/func_call5.mlw", line 21, characters 11-17)
  - Abstract RAC: FAILURE (assertion at "bench/check-ce/func_call5.mlw", line 21, characters 11-17)
File "bench/check-ce/func_call5.mlw", line 21, characters 11-17:
Sub-goal Assertion of goal f2'vc.
Prover result is: Unknown (unknown + incomplete) (0.03s, 6359 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 func_call5.mlw:
  Line 19:
    x = 0
    x = 0
    Execution of main function `f2` with env:
      x = 0
      zero = 0
      one = 1
  Line 20:
    Normal execution of function `g2` with args:
      y = 0
  Line 17:
    Normal execution of function `(+)` with args:
      _ = 0
      _ = 1
    Normal execution of function `ref` with args:
      contents = 1
    Normal execution of function `ref'mk` with args:
      contents = 1
  Line 21:
    Property failure at assertion with:
      x = 0
      z = {contents= 1}

