I have a problem that contains 9 bilinear constraints: each constraint has a product of 2 continuous variables. Note that the problem has only continuous variables.
I modeled the problem in GAMS as QCP, adding the Gurobi Option nonConvex=2. Therefore, the original bilinear constraints are treated as quadratic constraints (9 quadratic constraints) but then the log file shows "Presolved model has 216 bilinear constraints"
Is there a way to avoid the translation of quadratic constraints into bilinear constraints? In other words, how to ensure that the resolution considers just the original 9 bilinear constraints and not the translation (216 constraints)? I tried to disable the Presolve phase (Presolve=0) but I am not sure it is the best way to do that.
Thank you in advance
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