Java Bytec 64199 pair #381919243

details

property	value
status	complete
benchmark	Virtual.jar
ran by	Akihisa Yamada
cpu timeout	1200 seconds
wallclock timeout	300 seconds
memory limit	137438953472 bytes
execution host	n072.star.cs.uiowa.edu
space	Costa_Julia_09-recursive

run statistics

property	value
solver	AProVE
configuration	standard
runtime (wallclock)	2.16835403442 seconds
cpu usage	5.160002327
max memory	3.17607936E8

stage attributes

key	value
output-size	3373
starexec-result	YES

output

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


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


YES
proof of /export/starexec/sandbox/benchmark/theBenchmark.jar
# AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty


termination of the given Bare JBC problem could be proven:

(0) Bare JBC problem
(1) BareJBCToJBCProof [EQUIVALENT, 97 ms]
(2) JBC problem
(3) JBCToGraph [EQUIVALENT, 289 ms]
(4) JBCTerminationGraph
(5) TerminationGraphToSCCProof [SOUND, 0 ms]
(6) TRUE


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

(0)
Obligation:
need to prove termination of the following program:
public class Div extends Node {
    public int length() {
	return length();
    }
}

public class Internal extends Node {
    private Node next;

    public Internal(Node next) {
	this.next = next;
    }

    public int length() {
	return 1 + next.length();
    }
}

public class Nil extends Node {
    public int length() {
	return 0;
    }
}

public abstract class Node {
    public abstract int length();
}

/**
 * An iteration over a list of <tt>Internal</tt> nodes ending with
 * a terminating node <tt>Nil</tt>.
 *
 * All calls terminate.
 *
 * Julia + BinTerm prove that all calls terminate
 *
 * This example shows termination in the case of virtual calls
 * to <tt>length()</tt>.
 *
 * @author <A HREF="mailto:fausto.spoto@univr.it">Fausto Spoto</A>
 */

public class Virtual {
    public static void main(String[] args) {
	Node d = new Div();
	Node n = new Nil();
	int l = 28; //Integer.parseInt(args[0]);
	while (l-- > 0) n = new Internal(n);

	n.length();
    }
}


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

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

(2)
Obligation:
need to prove termination of the following program:
public class Div extends Node {
    public int length() {
	return length();
    }
}

public class Internal extends Node {
    private Node next;

    public Internal(Node next) {

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