    Iteration information for misfit_ solve.
    0 TAO,    Function value: 0.00378251,    Residual: 0.00101179 
    1 TAO,    Function value: 0.000434894,    Residual: 1.12158e-09 
    Iteration information for reg_ solve.
    0 TAO,    Function value: 4.05323e-05,    Residual: 0.00900359 
    1 TAO,    Function value: 4.05323e-13,    Residual: 7.82167e-19 
  1 TAO,  Function value: 0.000394602,  Residual: 0.000126509 
    Iteration information for misfit_ solve.
    0 TAO,    Function value: 0.000394362,    Residual: 0.000126508 
    1 TAO,    Function value: 0.000386697,    Residual: 7.22267e-10 
    Iteration information for reg_ solve.
    0 TAO,    Function value: 4.11715e-06,    Residual: 0.00286955 
    1 TAO,    Function value: 5.99794e-13,    Residual: 7.01453e-19 
  2 TAO,  Function value: 0.000382832,  Residual: 0.000123941 
    Iteration information for misfit_ solve.
    0 TAO,    Function value: 0.00038258,    Residual: 0.000123941 
    1 TAO,    Function value: 0.000379782,    Residual: 6.49655e-10 
    Iteration information for reg_ solve.
    0 TAO,    Function value: 2.06887e-06,    Residual: 0.00203414 
    1 TAO,    Function value: 7.58793e-13,    Residual: 6.29871e-19 
  3 TAO,  Function value: 0.00037797,  Residual: 0.000122998 
    Iteration information for misfit_ solve.
    0 TAO,    Function value: 0.000377713,    Residual: 0.000122998 
    1 TAO,    Function value: 0.000376097,    Residual: 5.8345e-10 
    Iteration information for reg_ solve.
    0 TAO,    Function value: 1.31802e-06,    Residual: 0.00162359 
    1 TAO,    Function value: 9.01633e-13,    Residual: 6.75068e-19 
  4 TAO,  Function value: 0.000375039,  Residual: 0.000122418 
    Iteration information for misfit_ solve.
    0 TAO,    Function value: 0.000374779,    Residual: 0.000122418 
    1 TAO,    Function value: 0.000373665,    Residual: 5.31342e-10 
    Iteration information for reg_ solve.
    0 TAO,    Function value: 9.68237e-07,    Residual: 0.00139157 
    1 TAO,    Function value: 1.03364e-12,    Residual: 6.93911e-19 
  5 TAO,  Function value: 0.000372959,  Residual: 0.000121997 
relative reconstruction error: ||x-xGT||/||xGT|| = 8.0941e-01.
