0 TAO,  Function value: 0.153666,  Residual: 1.22223 
  0 TAO,  Function value: 0.0316957,  Residual: 0.71596 
  1 TAO,  Function value: 0.0134764,  Residual: 0.746398 
  2 TAO,  Function value: 0.000704255,  Residual: 0.146572 
  3 TAO,  Function value: 2.1634e-06,  Residual: 0.00781609 
  4 TAO,  Function value: 2.84105e-11,  Residual: 2.82561e-05 
  5 TAO,  Function value: 4.928e-21,  Residual: 3.72138e-10 
Tao Object: 1 MPI processes
  type: bntr
    CG steps: 0
    Newton steps: 5
    Scaled gradient steps: 0
    Gradient steps: 0
    KSP termination reasons:
      atol: 0
      rtol: 2
      ctol: 2
      negc: 1
      dtol: 0
      iter: 0
      othr: 0
  TaoLineSearch Object: 1 MPI processes
    type: more-thuente
    maximum function evaluations=30
    tolerances: ftol=0.0001, rtol=1e-10, gtol=0.9
    total number of function evaluations=0
    total number of gradient evaluations=0
    total number of function/gradient evaluations=0
    Termination reason: 0
  KSP Object: (tao_bnk_) 1 MPI processes
    type: stcg
    maximum iterations=10000, initial guess is zero
    tolerances:  relative=1e-05, absolute=1e-50, divergence=10000.
    left preconditioning
    using UNPRECONDITIONED norm type for convergence test
  PC Object: (tao_bnk_) 1 MPI processes
    type: none
    linear system matrix = precond matrix:
    Mat Object: 1 MPI processes
      type: shell
      rows=2, cols=2
  total KSP iterations: 8
  Active Set subset type: subvec
  convergence tolerances: gatol=1e-08,   steptol=0.,   gttol=0.
  Residual in Function/Gradient:=3.72138e-10
  Objective value=4.928e-21
  total number of iterations=5,                          (max: 50)
  total number of function/gradient evaluations=17,      (max: 4000)
  total number of Hessian evaluations=6
  Solution converged:    ||g(X)|| <= gatol