mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
27 lines
771 B
Solidity
27 lines
771 B
Solidity
pragma experimental SMTChecker;
|
|
|
|
contract C {
|
|
uint[] a;
|
|
uint l;
|
|
function p() public {
|
|
require(a.length < type(uint).max - 1);
|
|
a.push();
|
|
++l;
|
|
}
|
|
function q() public {
|
|
require(a.length > 0);
|
|
a.pop();
|
|
--l;
|
|
}
|
|
function r() public view returns (uint) {
|
|
require(l > 0);
|
|
return a[l]; // oob access
|
|
}
|
|
}
|
|
// ----
|
|
// Warning 4984: (145-148): CHC: Overflow (resulting value larger than 2**256 - 1) might happen here.
|
|
// Warning 3944: (214-217): CHC: Underflow (resulting value less than 0) might happen here.
|
|
// Warning 6368: (292-296): CHC: Out of bounds access happens here.
|
|
// Warning 2661: (145-148): BMC: Overflow (resulting value larger than 2**256 - 1) happens here.
|
|
// Warning 4144: (214-217): BMC: Underflow (resulting value less than 0) happens here.
|