{"errors":[{"component":"general","errorCode":"9302","formattedMessage":"Warning: Return value of low-level calls not used.
 --> A:7:7:
  |
7 | \t\t\t\t\t\t_a.call(\"\");
  | \t\t\t\t\t\t^^^^^^^^^^^

","message":"Return value of low-level calls not used.","severity":"warning","sourceLocation":{"end":143,"file":"A","start":132},"type":"Warning"},{"component":"general","errorCode":"6328","formattedMessage":"Warning: CHC: Assertion violation happens here.
Counterexample:
x = 0
_a = 0x0

Transaction trace:
test.constructor()
State: x = 0
test.f(0x0)
    _a.call(\"\") -- untrusted external call
 --> A:8:7:
  |
8 | \t\t\t\t\t\tassert(x == 10);
  | \t\t\t\t\t\t^^^^^^^^^^^^^^^

","message":"CHC: Assertion violation happens here.
Counterexample:
x = 0
_a = 0x0

Transaction trace:
test.constructor()
State: x = 0
test.f(0x0)
    _a.call(\"\") -- untrusted external call","severity":"warning","sourceLocation":{"end":166,"file":"A","start":151},"type":"Warning"}],"sources":{"A":{"id":0}}}
