mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
25 lines
624 B
Solidity
25 lines
624 B
Solidity
pragma experimental SMTChecker;
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contract C {
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uint[][] c;
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function f() public {
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require(c.length == 0);
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c.push().push() = 2;
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assert(c.length == 1);
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assert(c[0].length == 1);
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assert(c[0][0] == 2);
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}
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function g() public {
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c.push().push() = 2;
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assert(c.length > 0);
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assert(c[c.length - 1].length == 1);
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assert(c[c.length - 1][c[c.length - 1].length - 1] == 2);
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// Fails
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assert(c[c.length - 1][c[c.length - 1].length - 1] == 200);
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}
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}
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// ----
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// Warning 6328: (395-453): CHC: Assertion violation happens here.\nCounterexample:\nc = [[2]]\n\nTransaction trace:\nC.constructor()\nState: c = []\nC.g()
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