Originally posted by: cdpstom

helo, every one,

I try to use the branch-cut and price to solve a vrp and the cuting process  puzzled me. In my opinion, the valid cuts is added to the master problem when the prce problem cannot find a coloumn with a negative value.  Then there may be coloumn with a negative value due to the valid cuts. And we add this column to the master problem and I don't know whether to add this column to the valid cut or to regenerate the valid cut?  if I use the Cplex, whether I use the addcuts or use the add constraints, thanks!