Originally posted by: IvanM88

When solving root subproblem of MIQP with CPLEX 12.3.0.0 the solver gets stuck at the QP Crossover and iterates to infinity with practically no change in the value of objective. I tried shutting off the crossover (by setting BarCrossAlg to -1) and limiting the number of iterations (by setting BarItLim to 100000) but it had no effect (it seems that CPLEX doesn't follow these changes for root algorithm). I am sending You a SAV file and node log so You can take a look.

Thanks in advance,

Ivan.

I could reproduce your problem with 12.3 but not with the most recent version of CPLEX (12.5.1). Since 12.3 is rather old, do you see any chance to upgrade to 12.5.1?