Hello,

When I run a model in C++ concert technology, it gets to a point that prints

"Default row names c1, c2 ... being created."

It does not go further.

I exported .lp file and solved it by calling cplex in the terminal.

There it is fine and displays pre-processing and ...

Can someone tell me what is wrong with the C++ file?

A possible explanation is that CPLEX turns off screen display by default in API.

https://www.ibm.com/support/knowledgecenter/SSSA5P_20.1.0/ilog.odms.cplex.help/CPLEX/Parameters/topics/SCRIND.html

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