mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
26 lines
653 B
Solidity
26 lines
653 B
Solidity
contract C {
|
|
uint gas;
|
|
address origin;
|
|
function f() public {
|
|
gas = tx.gasprice;
|
|
origin = tx.origin;
|
|
|
|
g();
|
|
}
|
|
function g() internal view {
|
|
assert(gas >= 0); // should hold
|
|
assert(uint160(origin) >= 0); // should hold
|
|
|
|
assert(gas == tx.gasprice); // should hold with CHC
|
|
assert(origin == tx.origin); // should hold with CHC
|
|
|
|
assert(tx.origin == address(this)); // should fail
|
|
}
|
|
}
|
|
// ====
|
|
// SMTEngine: chc
|
|
// SMTIgnoreOS: macos
|
|
// ----
|
|
// Warning 6328: (343-377): CHC: Assertion violation happens here.
|
|
// Info 1391: CHC: 4 verification condition(s) proved safe! Enable the model checker option "show proved safe" to see all of them.
|