pragma experimental SMTChecker; contract C { function f(uint32 a, uint32 b) internal pure returns (uint256) { return a >> b; } function t() public pure { assert(f(0x4266, 0) == 0x4266); // Fails because the above is true. assert(f(0x4266, 0) == 0x426); assert(f(0x4266, 8) == 0x42); // Fails because the above is true. assert(f(0x4266, 8) == 0x420); assert(f(0x4266, 0x10) == 0); // Fails because the above is true. assert(f(0x4266, 0x10) == 255); assert(f(0x4266, 0x11) == 0); // Fails because the above is true. assert(f(0x4266, 0x11) == 255); } } // ---- // Warning 6328: (246-275): CHC: Assertion violation happens here. // Warning 6328: (350-379): CHC: Assertion violation happens here. // Warning 6328: (454-484): CHC: Assertion violation happens here. // Warning 6328: (559-589): CHC: Assertion violation happens here.