solidity/test/libsolidity/smtCheckerTests/operators/compound_add_array_index.sol
2021-03-30 10:28:48 +02:00

23 lines
521 B
Solidity

pragma experimental SMTChecker;
contract C
{
uint[] array;
constructor() {
q(); q();
}
function q() public {
array.push();
}
function f(uint x, uint p) public {
require(p < array.length);
require(x < 100);
array[p] = 100;
array[p] += array[p] + x;
assert(array[p] < 300);
assert(array[p] < 110);
}
}
// ----
// Warning 6328: (295-317): CHC: Assertion violation happens here.\nCounterexample:\narray = [0, 200]\nx = 0\np = 1\n\nTransaction trace:\nC.constructor()\nState: array = [0, 0]\nC.f(0, 1)