solidity/test/libsolidity/smtCheckerTests/external_calls/external_reentrancy_1.sol
2022-11-24 13:08:06 +01:00

21 lines
572 B
Solidity

interface D { function e() external; }
contract C {
bool locked = true;
function call(address target) public {
locked = false;
D(target).e();
locked = true;
}
function broken() public view {
assert(locked);
}
}
// ====
// SMTEngine: all
// SMTIgnoreOS: macos
// ----
// Warning 6328: (206-220): CHC: Assertion violation happens here.\nCounterexample:\nlocked = false\ntarget = 0x0\n\nTransaction trace:\nC.constructor()\nState: locked = true\nC.call(0x0)\n D(target).e() -- untrusted external call, synthesized as:\n C.broken() -- reentrant call