Originally posted by: Lessi

Hi,
 

I want to add constraints of form ax = b; where b takes integer value in the interval [b1..b2] to branch an original problem into several subproblems with such constraint. For example, if [b1..b2] = [2..4] so I want to add constraints ax = 2, ax=3, and ax=4 to create 3 sub-problems. Could you suggest me an approach to do this?

https://www.ibm.com/developerworks/community/forums/html/topic?id=77777777-0000-0000-0000-000014479984 - I think it could help but I also want your suggestions.

https://www.ibm.com/developerworks/community/forums/html/topic?id=8c8db112-fde3-49e4-91a7-1aaff2f3bb8e

Many thanks,

/Lessi

I don't think there is a better way than what is discusses in the thread you cited.

CPLEX allows to at create at most two branches from a node. If you want to create more then you have to create intermediate "fake" nodes that encode the additional branching information.