solidity/test/libsolidity/smtCheckerTests/modifiers/modifier_two_placeholders.sol

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2019-03-11 20:06:28 +00:00
pragma experimental SMTChecker;
contract C
{
uint x;
modifier m {
require(x > 0);
require(x < 10000);
_;
assert(x > 1);
_;
assert(x > 2);
assert(x > 10);
}
function f() m public {
x = x + 1;
}
function g(uint _x) public {
x = _x;
}
2019-03-11 20:06:28 +00:00
}
// ----
// Warning 6328: (156-170): CHC: Assertion violation happens here.\nCounterexample:\nx = 3\n\n\n\nTransaction trace:\nC.constructor()\nState: x = 0\nC.g(1)\nState: x = 1\nC.f()