[SCIP] problem with objective value

[sakib mondal]

Hi,


I have a problem in which due to certain transformation, I have rewritten the objective function as a constraint.


Original problem is max exp(cx) st constraint set C1.


I rewrite it as max z st exp(cx)=z and constraint set C1.


Scip solves it without any error or warning message. However, when I check the objective value (model.getObjVal() ), it is always giving a value which is different from the actual value (I compute it from the  optimum x value).  Even if I change the problem parameters, model.getObjVal() gives the same value.


Also checked that model.getObjVal() is same as model.getVal(z)



Wondering what could be the problem.  Thanks a  lot for the help.


Regards

Sakib
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