mirror of
https://github.com/ethereum/solidity
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20 lines
637 B
Solidity
20 lines
637 B
Solidity
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pragma experimental SMTChecker;
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contract C
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{
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function f(uint x) public pure {
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require(x < 100);
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do {
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// Overflows due to resetting x.
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x = x + 1;
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} while (x < 1000);
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// The assertion is true but we can't infer so
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// because x is touched in the loop.
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assert(x > 0);
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}
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}
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// ----
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// Warning: (150-155): Overflow (resulting value larger than 0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff) happens here
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// Warning: (146-155): Overflow (resulting value larger than 0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff) happens here
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// Warning: (269-282): Assertion violation happens here
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