mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
43 lines
1.1 KiB
Solidity
43 lines
1.1 KiB
Solidity
pragma experimental SMTChecker;
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abstract contract A {
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int x = 0;
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function f() public view mod() {
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assert(x != 0); // fails for A
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assert(x != 1); // fails for B
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assert(x != 2); // fails for C
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assert(x != 3); // fails for D
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}
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modifier mod() virtual {
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_;
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}
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}
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contract B is A {
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modifier mod() virtual override {
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x = 1;
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_;
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}
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}
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contract C is A {
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modifier mod() virtual override {
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x = 2;
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_;
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}
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}
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contract D is B,C {
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modifier mod() virtual override (B,C){
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x = 3;
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_;
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}
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}
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// ----
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// Warning 6328: (104-118): CHC: Assertion violation happens here.\nCounterexample:\nx = 0\n\nTransaction trace:\nA.constructor()\nState: x = 0\nA.f()
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// Warning 6328: (137-151): CHC: Assertion violation happens here.\nCounterexample:\nx = 1\n\nTransaction trace:\nB.constructor()\nState: x = 0\nA.f()
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// Warning 6328: (170-184): CHC: Assertion violation happens here.\nCounterexample:\nx = 2\n\nTransaction trace:\nC.constructor()\nState: x = 0\nA.f()
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// Warning 6328: (203-217): CHC: Assertion violation happens here.\nCounterexample:\nx = 3\n\nTransaction trace:\nD.constructor()\nState: x = 0\nA.f()
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