iter =   0, Function value: 1,  Residual: 2 
iter =   0, Function value: 0.770447,  Residual: 5.24792 
iter =   1, Function value: 0.526409,  Residual: 3.62426 
iter =   2, Function value: 0.357435,  Residual: 5.6789 
iter =   3, Function value: 0.213476,  Residual: 2.12473 
iter =   4, Function value: 0.15103,  Residual: 8.35263 
iter =   5, Function value: 0.0602938,  Residual: 0.498513 
iter =   6, Function value: 0.0331258,  Residual: 2.4877 
iter =   7, Function value: 0.0119116,  Residual: 1.77389 
iter =   8, Function value: 0.00292613,  Residual: 1.00799 
iter =   9, Function value: 0.000357205,  Residual: 0.409411 
iter =  10, Function value: 1.02563e-05,  Residual: 0.0746257 
iter =  11, Function value: 1.26232e-08,  Residual: 0.00275403 
iter =  12, Function value: 2.09587e-14,  Residual: 3.46652e-06 
Tao Object: 1 MPI processes
  type: nls
      Rejected matrix updates: 0
      Newton steps: 12
      BFGS steps: 0
      Scaled gradient steps: 0
      Gradient steps: 0
      nls ksp atol: 0
      nls ksp rtol: 12
      nls ksp ctol: 0
      nls ksp negc: 0
      nls ksp dtol: 0
      nls ksp iter: 0
      nls ksp othr: 0
  TaoLineSearch Object:   1 MPI processes
    type: more-thuente
  KSP Object:   1 MPI processes
    type: stcg
  total KSP iterations: 24
  convergence tolerances: gatol=1e-08,   steptol=0,   gttol=0
  Residual in Function/Gradient:=3.46652e-06
  Objective value=2.09587e-14
  total number of iterations=12,                          (max: 50)
  total number of function/gradient evaluations=20,      (max: 4000)
  total number of Hessian evaluations=13
  Solution converged:   estimated f(x)-f(X*) <= fatol