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			35 lines
		
	
	
		
			1020 B
		
	
	
	
		
			Solidity
		
	
	
	
	
	
			
		
		
	
	
			35 lines
		
	
	
		
			1020 B
		
	
	
	
		
			Solidity
		
	
	
	
	
	
| 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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| 
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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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| 
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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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| 
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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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| // SMTEngine: all
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| // ----
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| // Warning 6328: (443-458): 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: (477-492): 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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