solidity/test/libsolidity/smtCheckerTests/operators/shifts/shift_cleanup.sol

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2020-09-04 14:55:45 +00:00
pragma experimental SMTChecker;
contract C {
function f() public pure returns (uint16 x) {
x = 0xffff;
x += 32;
x = x << 8;
x = x >> 16;
assert(x == 0);
// Fails because x = 0.
assert(x == 10);
}
}
// ====
// SMTIgnoreCex: yes
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// ----
// Warning 4984: (109-116): CHC: Overflow (resulting value larger than 65535) happens here.
// Warning 6328: (193-208): CHC: Assertion violation happens here.