Originally posted by: özgür_ak

Hi . I am trying to solve a kind of vehicle routing problem. Cplex solves small size(5-6 node) problems but when increase the size (7 or more) after several hours(200) it stops with an error

"IDE Exception Handler has encountered a problem. An internal error has occurred. No more handles"

When i pressed ok button on the error dialog Cplex software close it selfs. Two different computer gives the same error with same problem.

Any idea what couse this problem????

Could it be that you are just running out of memory?

You could try to export the problem to a SAV file and then solve it using the interactive optimizer. This should tell you whether the problem is in the IDE or in the solver engine itself.

Originally posted by: özgür_ak

I tried your suggestion but i didnt wait to much. do i have to wait another 200 hours to see will it give same error?

If the problem is indeed running out of memory then you may have to wait even longer.