Warning: Return value of low-level calls not used.
 --> model_checker_invariants_reentrancy/input.sol:6:3:
  |
6 | 		_a.call("");
  | 		^^^^^^^^^^^

Info: Reentrancy property(ies) for model_checker_invariants_reentrancy/input.sol:test:
((!(x <= 0) || (x' <= 0)) && (!(x <= 0) || (<errorCode> <= 0)))
<errorCode> = 0 -> no errors
<errorCode> = 1 -> Assertion failed at assert(x < 10)