Hello, > > I tried to run the new min cost flow algorithm (RELAX-IV) on a problem > I have using glpk-java, and the java VM crashes (it doesn't catch the > error) while the algorithm is processing. > > Using a regular C program, it also crashes: > *** glibc detected *** ./run-relax4: free(): invalid next size > (normal): 0x0000000001cfb220 *** > > It seems to be a memory issue but I am not a C specialist. > > I attach my problem in the dimacs format. > > The same problem runs without any problem using the old okalg, and I > tried to run RELAX-IV on the sample.min example given in the graph > documentation, which also works. > > Please let me know if I am doing something wrong. >
Thank you for your bug report. I was able to reproduce the bug using your data file. The bug arises on freeing working arrays. Once I will have fixed it, I will post you a patch. Andrew Makhorin _______________________________________________ Bug-glpk mailing list [email protected] https://lists.gnu.org/mailman/listinfo/bug-glpk
