Thorsten Otto

Hi Eli, thanks a lot for your comment. In fact, preventing my function from terminating the solving and adding the same constraints again, did the trick. I still don't understand, how it is possibl...

Hello! Unfortunately, I'm still stuck with this problem. First I let print out some lines on entering the callback function, on leaving the callback function, before calling the optimize routine an...

Hi Jaromił, you're totally right regarding the code snippet I posted. Unfortunately I made a stupid copy and paste mistake. The actual code of my callback function looks like this: def mycallback(m...

Hi Jaromił, thanks for your quick reply. The variable is reset inside the callback function before testing for the graph properties. But shouldn't the callback function be only applied, when there ...