An interactive system for exploring primal reformulations of integer linear programs

Written by Utz-Uwe Haus and Matthias Köppe

GYWOPT has been developed since 2000 for experiments with the Integral Basis Method for integer programming by U.-U. Haus, M. Köppe and R. Weismantel.

Get documentation for GYWOPT as a PDF file from

If you are serious about the mathematical details, please go over to the publications page.

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Primal-Dual Integer Programming Group