The optimization model cannot be solved: info: 'Either infeasible or unbounded (GUROBI-GUROBI)'
AnsweredHi, I have ran an optimization model and the result is 'Either infeasible or unbounded (GUROBI-GUROBI)'.
But when I run the code 'IIS = gurobi_iis(model);' for diagnosis, it shows 'Gurobi error 10015: Cannot compute IIS on a feasible model'.
These two opposite statements really confuse me. Can someone tell what's wrong with this situation? Fully appreciate.
-
Official comment
Hi Yongtao,
You can find suggestions in our article How do I resolve the error "Model is infeasible or unbounded"? ; one possible reason might be that your model is not infeasible but unbounded.
Kind regards,
Ronald -
Thank you Ronald and it helps a lot. I will try your suggestions. Hope we can keep in touch.
0 -
The following article will also help:
How do I diagnose the error "Cannot compute IIS on a feasible model"?
- Riley
0
Please sign in to leave a comment.
Comments
3 comments