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[Bug-glpk] glpsol bug, assertion failed at glpmp1.c:1716


From: Berteun Damman
Subject: [Bug-glpk] glpsol bug, assertion failed at glpmp1.c:1716
Date: Fri, 1 Oct 2004 11:35:17 +0200
User-agent: Mutt/1.4.2i

Dear Sir/Madam,

Today I was using glpsol (for the first time): 

  142$ glpsol --version
  GLPSOL -- GLPK LP/MIP Solver, Version 4.6

as distributed by Debian Unstable.

I've encountered a case in which an assertion fails, using this simple
model file:

   param n, integer, > 0;
   var x{x in 1..n}, >= 0;

I know, that last line should read 'var x{i in 1..n}, >= 0' or something
like that, and not 'x in 1..n', but I still think it is a bug because asserts
shouldn't fail. The error it gives is:

140$ glpsol --model bug.mod
Reading model section from bug.mod...
Assertion failed: node->type == A_INDEX; file glpmpl1.c; line 1716

Hopefully this is enough information to pin point the problem.

With kind regards,

Berteun Damman




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