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			35 lines
		
	
	
		
			663 B
		
	
	
	
		
			Solidity
		
	
	
	
	
	
			
		
		
	
	
			35 lines
		
	
	
		
			663 B
		
	
	
	
		
			Solidity
		
	
	
	
	
	
contract A {
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	int x = 0;
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	function f() virtual internal {
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		x = 2;
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	}
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	function proxy() public {
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		f();
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	}
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}
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contract C is A {
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	function f() internal virtual override {
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		super.f();
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		assert(x == 2);
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		assert(x == 3); // should fail
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	}
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}
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contract D is C {
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	function f() internal override {
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		super.f();
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		assert(x == 2);
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		assert(x == 3); // 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 6328: (205-219): CHC: Assertion violation happens here.
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// Warning 6328: (328-342): CHC: Assertion violation happens here.
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// Info 1391: CHC: 2 verification condition(s) proved safe! Enable the model checker option "show proved safe" to see all of them.
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