 = 4.64e-01
Iter   130, f(x) = 5.868383e+02, ||grad||_infty = 4.58e-01
Iter   140, f(x) = 5.867528e+02, ||grad||_infty = 3.39e-01
Iter   150, f(x) = 5.867107e+02, ||grad||_infty = 7.51e-01
Iter   160, f(x) = 5.866676e+02, ||grad||_infty = 2.29e-01
Iter   170, f(x) = 5.866355e+02, ||grad||_infty = 2.30e-01
Iter   180, f(x) = 5.866268e+02, ||grad||_infty = 1.77e-01
Iter   190, f(x) = 5.866142e+02, ||grad||_infty = 1.19e-01
Iter   200, f(x) = 5.865911e+02, ||grad||_infty = 2.12e-01
Iter   210, f(x) = 5.865839e