Model is "Either infeasible or unbonded" reported by Gurobi, however feasible and bounded after providing with partial initial guess

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  • XINWEI SHEN

    Some additional information:

    1. This is a MISOCP model;

    2. The optimization status code is 12, which means that "Optimization was terminated due to unrecoverable numerical difficulties."

    So what can I do to find the problem of the solving process and make the model solvable?

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  • Silke Horn

    As you have seen yourself from the status code, the most likely explanation is that the model has numerical issues -- e.g. due to huge coefficient ranges. What are your model's coefficient statistics? (You can find them at the beginning of the log file.)

    Our Numerics Guidelines may also be helpful.

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