formula 2 is: A -> A /\ B
task 2 created:
theory Task
  predicate A
  
  predicate B
  
  (* meta get_counterexmp *)
  
  goal goal2 : A -> A /\ B
end

On task 1, CVC4,1.7 answers Unknown (sat) (0.0xs, xx steps)
Model is [{"filename": "myfile.my_ext",
           "model":
            [{"is_vc_line": false,
              "line": "28",
              "model_elements":
               [{"attrs": ["model_trace:my_A"],
                 "kind": "other",
                 "location":
                  {"end-char": 1,
                   "end-line": 28,
                   "file-name": "myfile.my_ext",
                   "start-char": 0,
                   "start-line": 28},
                 "lsymbol":
                  {"attrs": ["model_trace:my_A"],
                   "loc":
                    {"end-char": 1,
                     "end-line": 28,
                     "file-name": "myfile.my_ext",
                     "start-char": 0,
                     "start-line": 28},
                   "name": "A"},
                 "value":
                  {"value_concrete_term": {"type": "Boolean", "val": true},
                   "value_term": "Ttrue",
                   "value_type": null}}]},
             {"is_vc_line": true,
              "line": "42",
              "model_elements":
               [{"attrs": ["model_trace:my_A"],
                 "kind": "other",
                 "location":
                  {"end-char": 91,
                   "end-line": 42,
                   "file-name": "myfile.my_ext",
                   "start-char": 28,
                   "start-line": 42},
                 "lsymbol":
                  {"attrs": ["model_trace:my_A"],
                   "loc":
                    {"end-char": 91,
                     "end-line": 42,
                     "file-name": "myfile.my_ext",
                     "start-char": 28,
                     "start-line": 42},
                   "name": "A_vc_constant"},
                 "value":
                  {"value_concrete_term": {"type": "Boolean", "val": true},
                   "value_term": "Ttrue",
                   "value_type": null}},
                {"attrs": ["model_trace:my_B"],
                 "kind": "other",
                 "location":
                  {"end-char": 91,
                   "end-line": 42,
                   "file-name": "myfile.my_ext",
                   "start-char": 28,
                   "start-line": 42},
                 "lsymbol":
                  {"attrs": ["model_trace:my_B"],
                   "loc":
                    {"end-char": 91,
                     "end-line": 42,
                     "file-name": "myfile.my_ext",
                     "start-char": 28,
                     "start-line": 42},
                   "name": "B_vc_constant"},
                 "value":
                  {"value_concrete_term": {"type": "Boolean", "val": false},
                   "value_term": "Tfalse",
                   "value_type": null}}]}]},
          {"filename": "myfile.my_ext2",
           "model":
            [{"is_vc_line": false,
              "line": "101",
              "model_elements":
               [{"attrs": ["model_trace:my_B"],
                 "kind": "other",
                 "location":
                  {"end-char": 1,
                   "end-line": 101,
                   "file-name": "myfile.my_ext2",
                   "start-char": 0,
                   "start-line": 101},
                 "lsymbol":
                  {"attrs": ["model_trace:my_B"],
                   "loc":
                    {"end-char": 1,
                     "end-line": 101,
                     "file-name": "myfile.my_ext2",
                     "start-char": 0,
                     "start-line": 101},
                   "name": "B"},
                 "value":
                  {"value_concrete_term": {"type": "Boolean", "val": false},
                   "value_term": "Tfalse",
                   "value_type": null}}]}]}]

== Check CE

The program does not comply to the verification goal, for example during the
  following execution:
File .:
  Line 0:
    Execution of main function `f` with env:
      x = 42
  Line 5:
    Property failure at assertion with:
      x = 42

== RAC execute giant steps

FAILURE (assertion at line 5, characters 0-0)
File .:
  Line 0:
    Execution of main function `f` with env:
      x = 42
  Line 5:
    Property failure at assertion with:
      x = 42
