Is there a way to force Gurobi to generate solution with 0 gap? I got optimal solution with positive gap for a MIP model that minimize cost. I found a solution with lower objective function value, and I plugged the solution in the model in Gurobi, and Gurobi actually achieved that "better" objective value. This means the solution is not optimal. Is there a way to make Gurobi to "work harder" to find the optimal solution with 0 gap? The tolerance is default 1.00e-04.
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