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

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2020-09-04 14:55:45 +00:00
pragma experimental SMTChecker;
contract C {
function f(uint256 a, uint256 b) internal pure returns (uint256) {
return a << b;
}
function t() public pure {
assert(f(0x4266, 0x0) == 0x4266);
// Fails because the above is true.
assert(f(0x4266, 0x0) == 0x4268);
assert(f(0x4266, 0x8) == 0x426600);
// Fails because the above is true.
assert(f(0x4266, 0x8) == 0x120939);
assert(f(0x4266, 0xf0) == 0x4266000000000000000000000000000000000000000000000000000000000000);
// Fails because the above is true.
assert(f(0x4266, 0xf0) == 0x4266000000000000000000000000000000000000000000000000000000000001);
assert(f(0x4266, 0x4266) == 0);
// Fails because the above is true.
assert(f(0x4266, 0x4266) == 1);
}
}
// ----
// Warning 6328: (250-282): CHC: Assertion violation happens here.
// Warning 6328: (363-397): CHC: Assertion violation happens here.
// Warning 6328: (537-630): CHC: Assertion violation happens here.
// Warning 6328: (707-737): CHC: Assertion violation happens here.