8. TORA Experiment. Consider the following ILP:

Maximize z = 18xI + 14x2 + 8x3 subject to Xl, X2, X3 nonnegative integers Use TORA's B&B user-guided option to generate the search tree with and without activating the objective-value bound. What is the impact of activating the objective-value bound on the number of generated subproblems? For consistency, always select the branching variable as the one with the lowest index and investigate all the subproblems in a current row from left to right before moving to the next row.