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https://github.com/ethereum/solidity
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20 lines
457 B
Solidity
20 lines
457 B
Solidity
contract C {
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function f() public pure returns (uint16 x) {
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unchecked {
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x = 0xffff;
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x += 32;
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x = x << 8;
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x = x >> 16;
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}
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assert(x == 0);
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// Fails because x = 0.
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assert(x == 10);
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}
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}
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// ====
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// SMTEngine: all
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// SMTIgnoreCex: yes
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// ----
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// Warning 6328: (182-197): 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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