mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
21 lines
989 B
Solidity
21 lines
989 B
Solidity
contract C {
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uint x;
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bool once;
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constructor() payable {
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x = address(this).balance;
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}
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function f() public payable {
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require(!once);
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once = true;
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require(msg.value > 0);
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assert(address(this).balance > x); // should hold
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assert(address(this).balance > x + 10); // should fail
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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 4984: (266-272): CHC: Overflow (resulting value larger than 2**256 - 1) happens here.\nCounterexample:\nx = 115792089237316195423570985008687907853269984665640564039457584007913129639926, once = true\n\nTransaction trace:\nC.constructor(){ msg.value: 28100 }\nState: x = 115792089237316195423570985008687907853269984665640564039457584007913129639926, once = false\nC.f(){ msg.value: 8 }
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// Warning 6328: (235-273): CHC: Assertion violation happens here.\nCounterexample:\nx = 0, once = true\n\nTransaction trace:\nC.constructor(){ msg.value: 0 }\nState: x = 0, once = false\nC.f(){ msg.value: 8 }
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// Info 1180: Contract invariant(s) for :C:\nonce\n
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