0, f(x) = 5.864816e+02, ||grad||_infty = 1.39e-01
Iter   310, f(x) = 5.864728e+02, ||grad||_infty = 1.16e-01
Iter   320, f(x) = 5.864642e+02, ||grad||_infty = 1.15e-01
Iter   330, f(x) = 5.864525e+02, ||grad||_infty = 3.76e-01
Iter   340, f(x) = 5.864428e+02, ||grad||_infty = 2.33e-01
Iter   350, f(x) = 5.864069e+02, ||grad||_infty = 1.92e-01
Iter   360, f(x) = 5.863788e+02, ||grad||_infty = 4.34e-01
Iter   370, f(x) = 5.863443e+02, ||grad||_infty = 1.84e-01
Iter   380, f(x) = 5.863030e+02, ||grad||_infty =