Java_Bytecode pair #487571315

details

property	value
status	complete
benchmark	Velroyen08-flip2.jar
ran by	Akihisa Yamada
cpu timeout	1200 seconds
wallclock timeout	300 seconds
memory limit	137438953472 bytes
execution host	n082.star.cs.uiowa.edu
space	BSOG_FoVeOOS_11

run statistics

property	value
solver	AProVE
configuration	standard
runtime (wallclock)	2.45682787895 seconds
cpu usage	5.896875233
max memory	3.99454208E8

stage attributes

key	value
output-size	13337
starexec-result	NO

output

/export/starexec/sandbox/solver/bin/starexec_run_standard /export/starexec/sandbox/benchmark/theBenchmark.jar /export/starexec/sandbox/output/output_files


--------------------------------------------------------------------------------


NO
proof of /export/starexec/sandbox/benchmark/theBenchmark.jar
# AProVE Commit ID: 794c25de1cacf0d048858bcd21c9a779e1221865 marcel 20200619 unpublished dirty


termination of the given Bare JBC problem could be disproven:

(0) Bare JBC problem
(1) BareJBCToJBCProof [EQUIVALENT, 96 ms]
(2) JBC problem
(3) JBCNonTerm [COMPLETE, 379 ms]
(4) NO


----------------------------------------

(0)
Obligation:
need to prove termination of the following program:
package simple.flip2;

public class Flip {
	
	/* inspired by this example:
	 * http://www.lri.fr/~marche/termination-competition/2006/webform.cgi?command=viewpb&id=TRS.HM.n007.trs
	 * (VAR x y)
(RULES
f(x,y) -> f(x,x)
f(s(x),y) -> f(y,x)
)
(COMMENT
Non-terminating.
)
	 */

	public static void flip(int i, int j) {
		int t = 0;
		while (i > 0 && j > 0) {
			if (i < j) {
				t = i;
				i = j;
				j = t;
			} else {
				if (i > j) {
					j = i;
				} else {
					i--;
				}
			}
		}
	}
}


package simple.flip2;

public class Main {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		Flip.flip(args[0].length(),args[1].length());

	}

}



----------------------------------------

(1) BareJBCToJBCProof (EQUIVALENT)
initialized classpath
----------------------------------------

(2)
Obligation:
need to prove termination of the following program:
package simple.flip2;

public class Flip {
	
	/* inspired by this example:
	 * http://www.lri.fr/~marche/termination-competition/2006/webform.cgi?command=viewpb&id=TRS.HM.n007.trs
	 * (VAR x y)
(RULES
f(x,y) -> f(x,x)
f(s(x),y) -> f(y,x)
)
(COMMENT
Non-terminating.
)
	 */

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