mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
20 lines
550 B
Solidity
20 lines
550 B
Solidity
interface D { function e() external; }
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contract C {
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bool locked = true;
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function call(address target) public {
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locked = false;
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D(target).e();
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locked = true;
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}
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function broken() public view {
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assert(locked);
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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 6328: (206-220): CHC: Assertion violation happens here.\nCounterexample:\nlocked = false\ntarget = 0x0\n\nTransaction trace:\nC.constructor()\nState: locked = true\nC.call(0x0)\n D(target).e() -- untrusted external call, synthesized as:\n C.broken() -- reentrant call
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