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			34 lines
		
	
	
		
			773 B
		
	
	
	
		
			Solidity
		
	
	
	
	
	
			
		
		
	
	
			34 lines
		
	
	
		
			773 B
		
	
	
	
		
			Solidity
		
	
	
	
	
	
| contract C
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| {
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| 	function f(uint x, uint y, bool b, bool c) public pure {
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| 		require(x < 10);
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| 		while (x < 10) {
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| 			if (b) {
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| 				++x;
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| 				if (x == 10)
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| 					x = 15;
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| 			}
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| 			else {
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| 				require(y < 10);
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| 				while (y < 10) {
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| 					if (c)
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| 						++y;
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| 					else {
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| 						y = 20;
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| 						break;
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| 					}
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| 				}
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| 				assert(y >= 15);
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| 				x = 15;
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| 				break;
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| 			}
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| 		}
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| 		assert(x >= 20);
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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: (296-311): CHC: Assertion violation happens here.\nCounterexample:\n\nx = 0\ny = 10\nb = false\nc = true\n\nTransaction trace:\nC.constructor()\nC.f(0, 9, false, true)
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| // Warning 6328: (347-362): CHC: Assertion violation happens here.\nCounterexample:\n\nx = 15\ny = 0\nb = true\nc = false\n\nTransaction trace:\nC.constructor()\nC.f(9, 0, true, false)
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