solidity/test/libsolidity/smtCheckerTests/try_catch/try_1.sol
2022-04-01 23:41:18 -05:00

24 lines
736 B
Solidity

contract C {
int x;
function g() public {
x = 42;
}
function f() public {
x = 0;
bool success = false;
try this.g() {
success = true;
} catch (bytes memory s) {
assert(x == 0); // should hold
}
assert(success); // fails for now, since external call is over-approximated (both success and fail are considered possible) for now even for known code
}
}
// ====
// SMTEngine: all
// ----
// Warning 5667: (163-177='bytes memory s'): Unused try/catch parameter. Remove or comment out the variable name to silence this warning.
// Warning 6328: (221-236='assert(success)'): CHC: Assertion violation happens here.\nCounterexample:\nx = 0\nsuccess = false\n\nTransaction trace:\nC.constructor()\nState: x = 0\nC.f()