minimizing objectives dependent on nb_passengers

[alexxsa93]

Hi,
I am trying to use cspy for minimizing the travel time of passengers. As obtaining the travel time of user depends on the number of passengers in the vehicle, we cannot pass a fixed, same predefined graph to the callback. Therefore, on the predefined graph, I just make it using the duals and then pass it to the callback. Therefore, the graph is just comprised of the duals. I wrote a callback with the resources of time, load, and reduced cost, and then I set cumul_cost = the resource corresponding to the reduced cost. The problem is that it gets so slow, when I manipulate the cumul cost of cspy, and in my case that's inevitable to do so. Is there a way to solve this?