solidity/test/libsolidity/smtCheckerTests/overflow/signed_guard_sum_overflow.sol

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2020-08-11 11:39:23 +00:00
pragma experimental SMTChecker;
contract C {
function f(int x, int y) public pure returns (int) {
require(x + y >= x);
return x + y;
}
}
// ----
// Warning 3944: (111-116): CHC: Underflow (resulting value less than -57896044618658097711785492504343953926634992332820282019728792003956564819968) happens here.
// Warning 4984: (111-116): CHC: Overflow (resulting value larger than 0x80 * 2**248 - 1) happens here.
// Warning 3944: (133-138): CHC: Underflow (resulting value less than -57896044618658097711785492504343953926634992332820282019728792003956564819968) happens here.