Solving sample problem.
      (f = 0.0 at the optimal solution.)

RUNNING THE L-BFGS-B CODE

           * * *

Machine precision = 2.220D-16
 N =           25     M =            5

At X0         0 variables are exactly at the bounds

At iterate    0    f=  3.46000D+03    |proj g|=  1.03000D+02

At iterate    1    f=  2.39769D+03    |proj g|=  6.50700D+01

At iterate    2    f=  1.43806D+02    |proj g|=  3.64039D+01

At iterate    3    f=  7.28161D+01    |proj g|=  2.29042D+01

At iterate    4    f=  1.60308D+01    |proj g|=  6.95409D+00

At iterate    5    f=  5.18725D+00    |proj g|=  9.05481D+00

At iterate    6    f=  2.12716D+00    |proj g|=  1.96729D+01

At iterate    7    f=  2.07568D-01    |proj g|=  2.12849D+00

At iterate    8    f=  5.32739D-02    |proj g|=  8.32469D-01

At iterate    9    f=  1.30450D-02    |proj g|=  4.27926D-01

At iterate   10    f=  3.86031D-03    |proj g|=  2.00812D-01

At iterate   11    f=  7.45653D-04    |proj g|=  1.37723D-01

At iterate   12    f=  3.54016D-04    |proj g|=  1.21274D-01

At iterate   13    f=  7.42511D-05    |proj g|=  2.97814D-02

At iterate   14    f=  3.74062D-05    |proj g|=  1.72742D-02

At iterate   15    f=  1.09832D-05    |proj g|=  2.86815D-02

At iterate   16    f=  3.90757D-06    |proj g|=  8.08085D-03

At iterate   17    f=  1.99502D-06    |proj g|=  3.47648D-03

At iterate   18    f=  8.25796D-07    |proj g|=  2.25283D-03

At iterate   19    f=  1.99224D-07    |proj g|=  1.45773D-03

At iterate   20    f=  5.75772D-08    |proj g|=  1.48245D-03

At iterate   21    f=  1.46326D-08    |proj g|=  5.44304D-04

At iterate   22    f=  2.36329D-09    |proj g|=  2.25244D-04

At iterate   23    f=  1.08349D-09    |proj g|=  1.72052D-04

           * * *

Tit   = total number of iterations
Tnf   = total number of function evaluations
Tnint = total number of segments explored during Cauchy searches
Skip  = number of BFGS updates skipped
Nact  = number of active bounds at final generalized Cauchy point
Projg = norm of the final projected gradient
F     = final function value

           * * *

   N    Tit     Tnf  Tnint  Skip  Nact     Projg        F
   25     23     28     47     0     0   1.721D-04   1.083D-09
  F =  1.083490083518441E-009

CONVERGENCE: REL_REDUCTION_OF_F_<=_FACTR*EPSMCH             

 Cauchy                time 1.000E-03 seconds.
 Subspace minimization time 0.000E+00 seconds.
 Line search           time 0.000E+00 seconds.

 Total User time 2.000E-03 seconds.