
iter,  cost function,  rel. grad. norm,  abs. grad. norm,  mesh qlty,  step size

   0,     -1.071e-02,        1.000e+00,        6.342e-01,       0.31,  

   1,     -5.883e-02,        2.909e-01,        1.845e-01,       0.31,  2.500e-01
   2,     -6.556e-02,        2.458e-01,        1.559e-01,       0.31,  1.000e+00
   3,     -9.209e-02,        5.010e-02,        3.177e-02,       0.26,  1.000e+00
   4,     -9.335e-02,        1.714e-02,        1.087e-02,       0.42,  1.000e+00
   5,     -9.342e-02,        2.401e-02,        1.523e-02,       0.42,  1.000e+00
   6,     -9.350e-02,        2.029e-02,        1.286e-02,       0.42,  1.000e+00
   7,     -9.369e-02,        6.392e-03,        4.053e-03,       0.41,  1.000e+00
   8,     -9.370e-02,        1.589e-02,        1.008e-02,       0.41,  1.000e+00
   9,     -9.372e-02,        7.905e-03,        5.013e-03,       0.41,  1.000e+00

iter,  cost function,  rel. grad. norm,  abs. grad. norm,  mesh qlty,  step size

  10,     -9.374e-02,        3.868e-03,        2.453e-03,       0.41,  1.000e+00
  11,     -9.375e-02,        4.014e-03,        2.545e-03,       0.41,  1.000e+00
  12,     -9.375e-02,        9.220e-03,        5.847e-03,       0.41,  2.500e-01
  13,     -9.376e-02,        3.858e-03,        2.447e-03,       0.41,  1.000e+00
  14,     -9.376e-02,        1.735e-03,        1.100e-03,       0.41,  1.000e+00
  15,     -9.376e-02,        1.675e-03,        1.062e-03,       0.41,  1.000e+00
  16,     -9.376e-02,        2.504e-03,        1.588e-03,       0.42,  1.000e+00
  17,     -9.377e-02,        1.035e-03,        6.566e-04,       0.42,  1.000e+00
  18,     -9.377e-02,        8.478e-04,        5.376e-04,       0.42,  1.000e+00

Optimization was successful.
Statistics:
    total iterations:   18
    final objective value: -9.377e-02
    final gradient norm:    8.478e-04
    total number of state systems solved:     24
    total number of adjoint systems solved:   19
