solidity/test/libsolidity/smtCheckerTests/special/blockhash.sol

15 lines
520 B
Solidity

pragma experimental SMTChecker;
contract C
{
function f(uint x) public payable {
assert(blockhash(x) > 0);
assert(blockhash(2) > 0);
uint y = x;
assert(blockhash(x) == blockhash(y));
}
}
// ----
// Warning 6328: (85-109): CHC: Assertion violation happens here.\nCounterexample:\n\nx = 38\n\nTransaction trace:\nC.constructor()\nC.f(38){ value: 7719 }
// Warning 6328: (113-137): CHC: Assertion violation happens here.\nCounterexample:\n\nx = 38\n\nTransaction trace:\nC.constructor()\nC.f(38){ value: 21238 }