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			23 lines
		
	
	
		
			549 B
		
	
	
	
		
			Solidity
		
	
	
	
	
	
			
		
		
	
	
			23 lines
		
	
	
		
			549 B
		
	
	
	
		
			Solidity
		
	
	
	
	
	
contract C
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{
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	uint[] array;
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	function p() public { array.push(); }
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	function f(uint x) public {
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		require(x < array.length);
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		array[x] = 5;
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		uint a = --array[x];
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		assert(array[x] == 4);
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		assert(a == 4);
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		uint b = array[x]--;
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		assert(array[x] == 3);
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		// Should fail.
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		assert(b > 4);
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	}
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}
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// ====
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// SMTEngine: all
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// SMTIgnoreCex: yes
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// ----
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// Warning 6328: (275-288): CHC: Assertion violation happens here.
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// Info 1391: CHC: 10 verification condition(s) proved safe! Enable the model checker option "show proved safe" to see all of them.
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