(0) Obligation:

JBC Problem based on JBC Program:
Manifest-Version: 1.0 Created-By: 1.6.0_16 (Sun Microsystems Inc.) Main-Class: Exc5
/**
* A loop continously throwing and catching an exception.
* The exception is thrown before the statement that makes the loop
* progress, but the exception body contains another statement making the
* loop progress.
*
* All calls terminate.
*
* Julia + BinTerm prove that all calls terminate.
*
* @author <A HREF="mailto:fausto.spoto@univr.it">Fausto Spoto</A>
*/

public class Exc5 {
public static void main(String[] args) {
int i = 0;

while (i < 20) {
i--;

try {
if (i > 10) throw null;
i += 2;
}
catch (NullPointerException e) {
i += 2;
}
}
}
}

(1) JBC2FIG (SOUND transformation)

Constructed FIGraph.

(2) Obligation:

FIGraph based on JBC Program:
Graph of 378 nodes with 0 SCCs.

(3) FIGtoITRSProof (SOUND transformation)

Transformed FIGraph to ITRS rules

(4) TRUE