solidity/test/libsolidity/smtCheckerTests/array_members/push_as_lhs_bytes.sol

23 lines
503 B
Solidity

pragma experimental SMTChecker;
contract C {
bytes b;
function f() public {
require(b.length == 0);
b.push() = byte(uint8(1));
assert(b[0] == byte(uint8(1)));
}
function g() public {
byte one = byte(uint8(1));
b.push() = one;
assert(b[b.length - 1] == one);
// Fails
assert(b[b.length - 1] == byte(uint8(100)));
}
}
// ----
// Warning 6328: (290-333): CHC: Assertion violation happens here.\nCounterexample:\nb = [1]\n\n\n\nTransaction trace:\nconstructor()\nState: b = []\ng()