2019-12-04 12:11:13 +00:00
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contract C {
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2020-12-16 17:32:34 +00:00
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function mul(uint8 a, uint8 b) public pure returns (uint8) {
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2019-12-04 12:11:13 +00:00
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if (a == 0) {
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return 0;
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}
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2020-12-16 17:32:34 +00:00
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uint8 c = a * b;
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2019-12-04 12:11:13 +00:00
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require(c / a == b);
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return c;
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}
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}
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2021-03-31 15:11:54 +00:00
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// ====
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// SMTEngine: all
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2020-08-11 13:53:24 +00:00
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// ----
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2023-02-09 16:07:13 +00:00
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// Warning 4984: (120-125): CHC: Overflow (resulting value larger than 255) 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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2021-03-31 15:11:54 +00:00
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// Warning 6838: (137-147): BMC: Condition is always true.
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