contract C { function abiencodePackedStringLiteral() public pure { bytes memory b1 = abi.encodePacked(""); bytes memory b2 = abi.encodePacked(""); // should hold, but currently fails due to string literal abstraction assert(b1.length == b2.length); bytes memory b3 = abi.encodePacked(bytes("")); assert(b1.length == b3.length); // should fail bytes memory b4 = abi.encodePacked(bytes24("")); // should hold, but currently fails due to string literal abstraction assert(b1.length == b4.length); bytes memory b5 = abi.encodePacked(string("")); assert(b1.length == b5.length); // should fail bytes memory b6 = abi.encode(""); assert(b1.length == b6.length); // should fail } } // ==== // SMTEngine: all // ---- // Warning 6328: (226-256): CHC: Assertion violation happens here. // Warning 1218: (310-340): CHC: Error trying to invoke SMT solver. // Warning 6328: (310-340): CHC: Assertion violation might happen here. // Warning 1218: (483-513): CHC: Error trying to invoke SMT solver. // Warning 6328: (483-513): CHC: Assertion violation might happen here. // Warning 1218: (568-598): CHC: Error trying to invoke SMT solver. // Warning 6328: (568-598): CHC: Assertion violation might happen here. // Warning 1218: (654-684): CHC: Error trying to invoke SMT solver. // Warning 6328: (654-684): CHC: Assertion violation might happen here. // Warning 4661: (310-340): BMC: Assertion violation happens here. // Warning 4661: (483-513): BMC: Assertion violation happens here. // Warning 4661: (568-598): BMC: Assertion violation happens here. // Warning 4661: (654-684): BMC: Assertion violation happens here.