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AnsweredI am a beginner, my model has this problem, I visit IIS is like this, but I do not know what this represents, can you explain to me?
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Hi Kewei,
It looks like you are calling Model.optimize() after computing the IIS, is this correct? This results in Status code 3 (infeasible) because the IIS is by definition an infeasible set of constraints. The IIS feature is meant to be used to write the IIS into a file using
model.write('iismodel.ilp')
after computing it, and then inspecting the ILP file manually to understand why your model is infeasible.
You may find the article How do I use 'compute IIS' to find a subset of constraints that are causing model infeasibility? helpful.
Best regards,
Elisabeth
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Thank you very much for your answer
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