Status Code from glpk

[Will Matern]

I am wondering what the status codes returned by the glpk solver mean. Is there documentation on this? Specifically when I run:
>> FBA = optimizeCbModel(model);
>> FBA.origStat
I get:
ans =

     105
What does this mean? I'm using the glpk solver.

Thanks,

Will

[Will Matern]

Let me give more details. I'm getting an empty flux vector from Cobra but I don't understand why (hence the interest in the status code). Interestingly if I change a single value in model.ub to zero the problem goes away (Cobra gives me a value). Has anyone had this problem before/ might know why this is happening?

[Brandon Barker]

Sorry I don't use GLPK; I know gurobi at least has good docs for their status codes. You'd be best to check the origStat with GLPK docs, or ask on their mailing list if that fails.

[Will Matern]

Brandon, thanks for the reply. I've determined that the status code comes from glpkmex, not glpk. I can't find any documentation on glpkmex. However, in the glpk.m file is the following:
%          If an error occurs, status will contain one of the following
%          codes.
%          Simplex method:
%               101  invalid basis
%               102  singular matrix
%               103  ill-conditioned matrix
%               104  invalid bounds
%               105  solver failed
%               106  objective lower limit reached
%               107  objective upper limit reached
%               108  iteration limit exceeded
%               109  time limit exceeded
%               110  no primal feasible solution

Which isn't very helpful...But I guess this might be a better question for the glpkmex developers.

In the off chance: Has anyone had an issue like this before? What did you do to fix it?