[Dip] bounds as explicit constraints?

[Shahin Gelareh]

Hi,

I am wondering if Dip expects that all the bound on variables being
explicitly declared as constraints or?
I have got a Big-M model which is solved fine on Cplex in 5 seconds for an
small instance but when I feed it into the MILP example takes time for ever
and my application also fails .
Adding explicit did not make things better but sill the question remains.
Is there any specific strategy to deal with bigM model in DIP, in
particular?

regards,
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