Hans Kirchner

It should be noted that running the model with Presolve turned off does not make the model infeasible or unbounded:   gurobi_cl Presolve=0 minimal_example_genconstr_and.rew.gz   Optimal solution fo...

I uploaded my model with general-AND constraints to your file uploader at https://www.gurobi.com/upload-a-model/ I hope that was the correct way.   The file is named: minimal_example_genconstr_and....

I have a relatively small minimal example, once with the built-in "_and" and once with my custom "logical_and". Both models are clearly feasible but with the built-in "_and" I get this "max general...

> What do you mean by "sometimes you just see"?   I had a programming mistake that probably led to sometimes making a full and sometimes a partial MIP start.   Thanks for the other answers. I still...

I found my mistake: My piecewise-linear function was actually not convex (although just very slightly). Because of that the objective values were a bit off. That means that setPWLObj() can work wit...

Yes, I'm minimizing and they are always convex! I implemented this and it performs great, even a bit better than setPWLObj. I ran model again for 30 minutes and the objective went down from 3897 to...

Thanks for quick answer! Ok, I've tried to replace setPWLObj with a custom implementation based on the article you suggested. So I'm mapping all the "x"-values to "y"-values with lambda-variables a...