mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
34 lines
1.0 KiB
Solidity
34 lines
1.0 KiB
Solidity
pragma experimental SMTChecker;
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contract A {
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function f() public virtual returns (uint256 r) {
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return 1;
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}
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}
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contract B is A {
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function f() public virtual override returns (uint256 r) {
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return super.f() + 2;
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}
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}
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contract C is A {
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function f() public virtual override returns (uint256 r) {
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return 2 * (super.f() + 4);
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}
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}
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contract D is B, C {
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function f() public override(B, C) returns (uint256 r) {
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r = super.f() + 8;
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assert(r == 22); // should hold
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assert(r == 20); // should fail
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assert(r == 18); // should fail
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}
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}
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// ----
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// Warning 6328: (475-490): CHC: Assertion violation happens here.\nCounterexample:\n\nr = 22\n\nTransaction trace:\nD.constructor()\nD.f()\n C.f() -- internal call\n B.f() -- internal call\n A.f() -- internal call
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// Warning 6328: (509-524): CHC: Assertion violation happens here.\nCounterexample:\n\nr = 22\n\nTransaction trace:\nD.constructor()\nD.f()\n C.f() -- internal call\n B.f() -- internal call\n A.f() -- internal call
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