mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
33 lines
896 B
Solidity
33 lines
896 B
Solidity
pragma experimental SMTChecker;
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contract C {
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struct S {
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uint x;
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bool b;
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}
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S public s;
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constructor() {
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s.x = 1;
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s.b = false;
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}
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function f() public {
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uint x;
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bool b;
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(x,b) = this.s();
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assert(x == s.x); // this should hold
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assert(b == s.b); // this should hold
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assert(b == true); // this should fail
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s.x = 42;
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(uint y, bool c) = this.s();
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assert(c == b); // this should hold
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assert(y == x); // this should fail
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}
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}
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// ----
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// Warning 6328: (288-305): CHC: Assertion violation happens here.\nCounterexample:\ns = {x: 1, b: false}\nx = 1\nb = false\ny = 0\nc = false\n\nTransaction trace:\nC.constructor()\nState: s = {x: 1, b: false}\nC.f()
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// Warning 6328: (410-424): CHC: Assertion violation happens here.\nCounterexample:\ns = {x: 42, b: false}\nx = 1\nb = false\ny = 42\nc = false\n\nTransaction trace:\nC.constructor()\nState: s = {x: 1, b: false}\nC.f()
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