[Bug-glpk] [Fwd: Re: problems after providing a heuristic solution]

[Andrew Makhorin]

-------- Forwarded Message --------
From: Luka Marohnić <address@hidden>
To: address@hidden
Subject: Re: problems after providing a heuristic solution
Date: Thu, 21 Jun 2018 23:55:40 +0200

I found the cause, i made an error while allocating memory for the
heuristic. Everything's ok with glpk.


Luka

čet, 21. lip 2018. 21:33 Luka Marohnić <address@hidden> je
napisao:

        Hello,
        
        
        I'm using GLPK to solve vertex coloring problem in graphs. I
        managed to get it working using the custom branching technique.
        However, when I implemented providing heuristic solutions in
        response of GLP_IHEUR, the function glp_ios_heur_sol does not
        complain but after some time, during the branch-and-cut process,
        the program crashes with the following message:
        
        Assertion failed: 1 <= k && k <= m+n
        Error detected in file glpapi12.c at line 1081
        
        
        That happens soon after the heuristic solution is acknowledged.
        
        Is a bug causing this?
        
        I can provide more info if necessary.
        
        
        Luka