Re: [Help-glpk] GLPK Assertion failed: tcol[csa->p] != 0.0

[Andrew Makhorin]

On Tue, 2016-04-12 at 19:46 +0000, Passorelli, Curtis wrote:
> Hello,
> 
>  
> 
> I had created a mixed integer program, and ran it for 300 seconds. The
> program crashed, and gave the following.
> 
>  
> 
> +308592: mip =   2.790000000e+02 >=   2.197142857e+02  21.2% (9277;
> 1729)
> 
> +315524: mip =   2.790000000e+02 >=   2.197142857e+02  21.2% (9592;
> 1758)
> 
> Assertion failed: tcol[csa->p] != 0.0
> 
> Error detected in file ..\src\simplex\spydual.c at line 999
> 
>  
> 
> Can anyone help me?
> 
> 

Please consider using the most recent version of glpk which is 4.60. It
is much more numerically stable.

See http://lists.gnu.org/archive/html/help-glpk/2016-04/msg00000.html .