Forum Discussion
I'd like to increase the diagnostics to know the cause of an infeasibility.
Hi. I am trying to optimize the attached model. However, it is infeasible. When running the diagnostics, the displayed information is not useful. I would like to see the cause of the infeasibility, e...
Ah, I see what you mean.
That message is emitted by the presolver if it discovers the problem to be infeasible. This is for simple infeasibilities, and it indicates that the presolver deduced conflicting bounds on the row or variable.
In your case the infeasibility is more complicated and it requires several rows and columns together, so you need to run an IIS algorithm to see it.