solidity/test/libsolidity/smtCheckerTests/array_members/push_zero_2d_unsafe.sol

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pragma experimental SMTChecker;
contract C {
uint[][] a;
function f() public {
a.push();
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a[a.length - 1].push();
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assert(a[a.length - 1][0] == 100);
}
}
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// ----
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// Warning 6328: (122-155): CHC: Assertion violation happens here.\nCounterexample:\na = [[0]]\n\nTransaction trace:\nC.constructor()\nState: a = []\nC.f()