solidity/test/libsolidity/smtCheckerTests/out_of_bounds/array_2d_2.sol

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contract C {
uint[][] a;
function p() public { a.push(); }
function q(uint i) public {
require(i < a.length);
a[i].push();
}
function r(uint i, uint j) public view returns (uint) {
require(i < a.length);
return a[i][j]; // unsafe access
}
}
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// ====
// SMTEngine: all
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// ----
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// Warning 6368: (224-231): CHC: Out of bounds access happens here.
// Info 1391: CHC: 2 verification condition(s) proved safe! Enable the model checker option "show proved safe" to see all of them.