[Help-glpk] Hard or very large scale MIP problems

[Bernardo Machado Reis]

Hello.

I'm working with glpk and trying to resolve very large scale MIP problems.
I've alredy done some tests with many integer variables (about 26000 ). It
takes about an hour but it allways gives a solution.
In your documentation, in page 51, it says "Hard or very large scale MIP
problems cannot be solved by this routine".
May you say why? Are the solutions that I have incorrect? Are they not
optimal solutions?
Can I keep going work with glpk?

Thank you very much,
Bernardo Reis