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Implementing Lazy Constraints (C++)
I'm implementing a B&Cut algorithm with BCL - C++ using the cut manager callback. Also I have to implement Lazy Constraints, that is, after each integer solution, search the violated constraints and...
The delayed constraint property can only be set before you load the problem into the solver, not during the MIP search.
If you wish to add cuts, you need to do so via the 'addCuts' routine in the cutmanager callback.
Furthermore, if you wish to be able to reject an integer solution, this can be done in the 'preintsol' callback.