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

Info: CHC: 1 verification condition(s) proved safe! Enable the model checker option "show proved safe" to see all of them.

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