Originally posted by: GiovanniP

Assume a counter is incremented every time the method

add(IloRange cut);

is called (in LaxyConstraints callback calls).

Can the number returned by

ilocplex.getNcuts(IloCplex.CutType.User);

be smaller than the number of times add() was  called? If so, in what circumstances?

As per the reference documentation, getNcuts() only returns the cuts "in use at the end of the optimization". So this may be indeed smaller than the total number of cuts added if CPLEX purges cuts.