0 seconds to find this solution. The final grid size was 0.000000.  Fig. 00.00  Best objective function value f(S) as a function of the number of function evaluations for one C-GRASP run on function Shubert whose global optimum objective function value is f(S ∗) = −000. 0000.  Fig. 00.00  Best shifted objective function value | f(S) − f(S ∗) | as a function of the computation time (in seconds) for one C-GRASP run on function Shubert whose global optimum objective function value is f(S ∗) = −000. 0000. Optimization ends when | f(S) − f(S ∗) | < ε ⋅ f(S ∗) = 0. 0000000.  