solidity/test/libsolidity/smtCheckerTests/out_of_bounds/array_2d_4.sol
2021-04-08 21:03:39 +02:00

24 lines
1.2 KiB
Solidity

contract C {
uint[][] a;
function p() public { a.push(); }
function q(uint i) public {
require(i < a.length);
a[i].push();
}
function r() public view {
for (uint i = 0; i < a.length + 10; ++i)
for (uint j = 0; j < a[i].length + 20; ++j)
a[i][j]; // oob access
}
}
// ====
// SMTEngine: all
// ----
// Warning 4984: (184-197): CHC: Overflow (resulting value larger than 2**256 - 1) might happen here.
// Warning 6368: (228-232): CHC: Out of bounds access happens here.\nCounterexample:\na = []\ni = 0\nj = 0\n\nTransaction trace:\nC.constructor()\nState: a = []\nC.r()
// Warning 4984: (228-244): CHC: Overflow (resulting value larger than 2**256 - 1) might happen here.
// Warning 6368: (255-259): CHC: Out of bounds access happens here.\nCounterexample:\na = []\ni = 0\nj = 0\n\nTransaction trace:\nC.constructor()\nState: a = []\nC.r()
// Warning 6368: (255-262): CHC: Out of bounds access happens here.\nCounterexample:\na = []\ni = 0\nj = 0\n\nTransaction trace:\nC.constructor()\nState: a = []\nC.r()
// Warning 2661: (184-197): BMC: Overflow (resulting value larger than 2**256 - 1) happens here.
// Warning 2661: (228-244): BMC: Overflow (resulting value larger than 2**256 - 1) happens here.