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[Help-glpk] Re: Status : Integer Undefined : what does it mean.

From: Andrew Makhorin
Subject: [Help-glpk] Re: Status : Integer Undefined : what does it mean.
Date: Fri, 13 Feb 2009 10:33:23 +0300

> I am trying to solve a problem with GLPK 4. 36.  As I run it with
> GPLSol with timeout of 900 seconds, it prints out the line "OPTIMAL
> SOLUTION FOUND" after some time in the log file and then "Integer
> Optimization Begins"

The message "OPTIMAL SOLUTION FOUND" means that the solver found an
optimal solution to LP relaxation, not to MIP.

> After time out when the output file is generated. It shows 

> What is the meaning of this ?

This means that the solver did not find any integer feasible solution
for 900 secs.

>  Should I consider that it is able to solve my prolbem ?

Try to increase the time limit.

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