mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
18 lines
738 B
Solidity
18 lines
738 B
Solidity
contract C {
|
|
function f() public pure {
|
|
assert(mulmod(2**256 - 1, 2, 14) == 2);
|
|
uint y = 0;
|
|
uint x = mulmod(2**256 - 1, 10, y);
|
|
assert(x == 1);
|
|
}
|
|
function g(uint x, uint y, uint k) public pure returns (uint) {
|
|
return mulmod(x, y, k);
|
|
}
|
|
}
|
|
// ====
|
|
// SMTEngine: all
|
|
// ----
|
|
// Warning 4281: (108-133): CHC: Division by zero happens here.\nCounterexample:\n\ny = 0\nx = 0\n\nTransaction trace:\nC.constructor()\nC.f()
|
|
// Warning 6328: (137-151): CHC: Assertion violation happens here.\nCounterexample:\n\ny = 0\nx = 0\n\nTransaction trace:\nC.constructor()\nC.f()
|
|
// Warning 4281: (230-245): CHC: Division by zero happens here.\nCounterexample:\n\nx = 0\ny = 0\nk = 0\n = 0\n\nTransaction trace:\nC.constructor()\nC.g(0, 0, 0)
|