Lukas Barth

Hi Matthias, Thanks for your reply. I missed the part about the left-hand side not being allowed to contain any constants, so Gurobi is right here! While these "constraints" are certainly nonsense,...

Hi Jaromlł, Thanks. The variables for which bounds were inferred were indeed variables of my model. Putting some reasonable upper bounds on them solved the problem with the huge bounds after presol...

Thanks again! Indeed, presolving seems to introduce some large variable bounds: gurobi> m = read("gurobi.mps")Read MPS format model from file gurobi.mpsReading time = 1.51 seconds: 663497 rows, 331...

Hi Jaromił, This is the size of my model: Optimize a model with 663497 rows, 331973 columns and 2427819 nonzerosModel fingerprint: 0xb4fd3671Model has 296 SOS constraintsVariable types: 111748 cont...

Thanks Jaromił. The main reason I was hoping to get around coding a callback is the issue referenced here: https://support.gurobi.com/hc/en-us/community/posts/360067079431-Callback-Setsolution-from...

Hi Jaromił, Thanks for your reply. I'm sorry, I think I did not describe my situation correctly. I do not know any variable assignments before optimization (otherwise I could just make them constan...