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https://github.com/ethereum/solidity
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14 lines
485 B
Solidity
14 lines
485 B
Solidity
contract test {
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function f() public pure returns (bool) {
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int256 x = -2**255;
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unchecked { assert(-x == x); }
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assert(-x == x); // CHC apparently does not create an underflow target for unary minus
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return true;
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}
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}
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// ====
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// SMTEngine: all
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// ----
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// Warning 6328: (110-125): CHC: Assertion violation happens here.
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// Info 1391: CHC: 1 verification condition(s) proved safe! Enable the model checker option "show proved safe" to see all of them.
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