solidity/test/libsolidity/smtCheckerTests/special/msg_sig.sol
2023-03-09 14:59:32 +01:00

32 lines
910 B
Solidity

contract C
{
function f() public pure {
assert(msg.sig == 0x00000000);
assert(msg.sig == 0x26121ff0);
fi();
gi();
}
function fi() internal pure {
assert(msg.sig == 0x26121ff0);
}
function g() public pure {
assert(msg.sig == 0xe2179b8e);
gi();
}
function gi() internal pure {
// Fails since f can also call gi in which case msg.sig == 0x26121ff0
assert(msg.sig == 0xe2179b8e);
}
function h() public pure {
// Fails since gi can also call h in which case msg.sig can be f() or g()
assert(msg.sig == 0xe2179b8e);
}
}
// ====
// SMTEngine: all
// ----
// Warning 6328: (43-72): CHC: Assertion violation happens here.
// Warning 6328: (370-399): CHC: Assertion violation happens here.
// Warning 6328: (510-539): CHC: Assertion violation happens here.
// Info 1391: CHC: 3 verification condition(s) proved safe! Enable the model checker option "show proved safe" to see all of them.