Re: [Help-glpk] Problem Has no Primal Feasible Solution

[Andrew Makhorin]

> i'm attaching the two file  .mod and .dat to let you know
> 
> When i run these files with glpsol,  i get these two messages at the
> end:
> 
> Model has been successfully generated
> and
> PROBLEM HAS NO PRIMAL FEASIBLE SOLUTION
> 
> in my opinion should exist one solution

Why do you think so?

> 
> it's possible?

The lp relaxation of your mip instance is primal infeasible, so the mip
is also infeasible. I solved your instance with glpsol using the options
--nomip, and/or, --nopresol and/or --exact, and in both three cases it
reported infeasibility.