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			30 lines
		
	
	
		
			639 B
		
	
	
	
		
			Solidity
		
	
	
	
	
	
			
		
		
	
	
			30 lines
		
	
	
		
			639 B
		
	
	
	
		
			Solidity
		
	
	
	
	
	
| pragma experimental SMTChecker;
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| pragma abicoder v2;
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| 
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| contract C {
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| 	struct T {
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| 		uint t;
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| 	}
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| 	struct S {
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| 		uint x;
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| 		T t;
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| 		bool b;
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| 		uint[] a;
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| 	}
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| 
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| 	S public s;
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| 
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| 	function f() public view {
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| 		uint y;
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| 		bool c;
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| 		T memory t;
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| 		(y,t,c) = this.s();
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| 		assert(y == s.x); // this should hold
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| 		assert(c == s.b); // this should hold
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| 		assert(t.t == s.t.t); // this should hold
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| 		assert(c == true); // this should fail
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| 	}
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| }
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| // ----
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| // Warning 6328: (370-387): CHC: Assertion violation happens here.\nCounterexample:\ns = {x: 0, t: {t: 0}, b: false, a: []}\n\nTransaction trace:\nC.constructor()\nState: s = {x: 0, t: {t: 0}, b: false, a: []}\nC.f()
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