You can also display a graph of the objective function values for each iteration by choosing Objective Function from the Graph menu. The graph will show the objective function values with a dark red line and the amount of infeasibilities for Phase 1 iterations with a green line. For integer problems the graph will show the objective function value for each node and the best integer solution value found so far using blue lines. This graph is only available when the model has been solved using Windows/DLL solvers.