[Ipopt] problem with stop conditions

Andreas Waechter awaechter.iems at gmail.com
Wed May 9 16:17:35 EDT 2012


Hi,

I suggest reading the description of the acceptable_* tolerances in 
detail.  The first thing to notice is that setting acceptable_iter to 
10000 essentially disables the acceptable criterion.

Regards,

Andreas

Andreas Waechter

Associate Professor
Department of Industrial Engineering and Management Sciences
McCormick School of Engineering
Northwestern University
Evanston, IL 60208
USA


On 05/09/2012 05:34 AM, Juan Carlos Lopez Alfonso wrote:
> Hi all,
>
> I have a problem with the stop condition of my Ipopt algorithm. How is
> possible to see in the results below, the change in the value of the
> objetive function is very small and the algorithm don't stop. I have
> tried to change all stop conditions but no luck.
>
> in this test, the options that I have changed are the follows:
>
> app->Options()->SetStringValue("print_user_options", "yes");
> app->Options()->SetNumericValue("tol", 1.0e-6);
> app->Options()->SetNumericValue("acceptable_tol", 1.0e-5);
> app->Options()->SetIntegerValue("max_iter", 10000);
> app->Options()->SetIntegerValue("acceptable_iter", 10000);
> app->Options()->SetNumericValue("constr_viol_tol", 1.0e-6);
> app->Options()->SetNumericValue("acceptable_constr_viol_tol", 1.0e-6);
>
> Could anyone tell me what happens and how can i solve this problem? I
> dont want to stop the algortihm by hand, I prefer that it stops with a
> predefined stop condition.
>
> Best regards and thank you in advance
> Juan Carlos
>
> iter    objective    inf_pr   inf_du lg(mu)  ||d||  lg(rg) alpha_du alpha_pr  ls
>     0  1.1959761e+01 0.00e+00 2.40e-03  -1.0 0.00e+00    -  0.00e+00 0.00e+00   0
>     1  3.2090451e+01 0.00e+00 5.65e-01  -1.0 1.09e-01    -  5.26e-01 1.00e+00f  1
>     2  3.9205106e+01 0.00e+00 1.06e-01  -1.7 1.51e-01    -  8.86e-01 1.00e+00f  1
>     3  4.5493486e+01 0.00e+00 2.45e-02  -2.5 1.13e-01    -  9.20e-01 1.00e+00f  1
>     4  4.6046663e+01 0.00e+00 4.66e-03  -3.8 9.02e-02    -  7.63e-01 1.00e+00h  1
>     5  4.6845229e+01 0.00e+00 3.12e-03  -3.8 1.29e+00    -  3.09e-01 1.00e+00f  1
>     6  4.8051644e+01 0.00e+00 1.64e-03  -3.8 6.91e-01    -  5.64e-01 1.00e+00h  1
>     7  5.0071686e+01 0.00e+00 7.88e-04  -3.8 3.66e-01    -  8.82e-01 1.00e+00h  1
>     8  5.2101707e+01 0.00e+00 5.10e-04  -3.8 3.25e-01    -  1.00e+00 1.00e+00h  1
>     9  5.2344541e+01 0.00e+00 1.16e-04  -3.8 1.50e-01    -  1.00e+00 1.00e+00h  1
> iter    objective    inf_pr   inf_du lg(mu)  ||d||  lg(rg) alpha_du alpha_pr  ls
>    10  5.2365229e+01 0.00e+00 1.19e-04  -3.8 9.12e-02    -  1.00e+00 1.00e+00h  1
>    11  5.2366845e+01 0.00e+00 1.46e-04  -3.8 1.31e-01    -  1.00e+00 1.00e+00h  1
>    12  5.2367852e+01 0.00e+00 1.60e-04  -3.8 1.66e-01    -  1.00e+00 1.00e+00h  1
>    13  5.2367412e+01 0.00e+00 2.62e-04  -3.8 2.75e-01    -  1.00e+00 1.00e+00H  1
>    14  3.0317532e+01 0.00e+00 4.74e-04  -5.7 4.36e-01    -  7.80e-01 6.03e-01f  1
>    15  2.0701464e+01 0.00e+00 4.75e-04  -5.7 3.79e-01    -  7.75e-01 4.41e-01f  1
>    16  1.5075991e+01 0.00e+00 4.80e-04  -5.7 4.41e-01    -  8.39e-01 4.16e-01h  1
>    17  1.1779443e+01 0.00e+00 3.71e-04  -5.7 3.95e-01    -  8.26e-01 4.10e-01h  1
>    18  9.8058135e+00 9.57e-03 2.88e-04  -5.7 3.66e-01    -  1.00e+00 4.19e-01h  1
>    19  8.8218118e+00 2.31e-02 2.88e-04  -5.7 3.39e-01    -  9.80e-01 3.62e-01h  1
> iter    objective    inf_pr   inf_du lg(mu)  ||d||  lg(rg) alpha_du alpha_pr  ls
>    20  7.7028064e+00 1.76e-02 1.27e-04  -5.7 2.13e-01    -  1.00e+00 6.49e-01h  1
>    21  7.0999381e+00 0.00e+00 1.56e-05  -5.7 7.74e-02    -  1.00e+00 1.00e+00h  1
>    22  7.1000638e+00 0.00e+00 5.66e-06  -5.7 1.81e-02    -  1.00e+00 1.00e+00h  1
>    23  7.1000565e+00 0.00e+00 2.14e-06  -5.7 7.35e-03    -  1.00e+00 1.00e+00h  1
>    24  7.1000556e+00 0.00e+00 7.99e-07  -5.7 2.74e-03    -  1.00e+00 1.00e+00h  1
>    25  6.7451507e+00 0.00e+00 7.86e-05  -7.0 1.03e-01    -  7.66e-01 5.41e-01f  1
>    26  6.5953193e+00 1.91e-04 1.27e-04  -7.0 9.48e-02    -  7.58e-01 4.95e-01h  1
>    27  6.5130936e+00 3.27e-04 1.26e-04  -7.0 6.65e-02    -  9.37e-01 5.37e-01h  1
>    28  6.4633435e+00 6.53e-05 6.42e-05  -7.0 4.41e-02    -  9.15e-01 7.03e-01h  1
>    29  6.4431951e+00 3.43e-05 1.03e-05  -7.0 2.70e-02    -  1.00e+00 9.58e-01h  1
> iter    objective    inf_pr   inf_du lg(mu)  ||d||  lg(rg) alpha_du alpha_pr  ls
>    30  6.4423090e+00 0.00e+00 4.58e-06  -7.0 1.39e-02    -  1.00e+00 1.00e+00f  1
>    31  6.4423086e+00 0.00e+00 2.62e-06  -7.0 8.24e-03    -  1.00e+00 1.00e+00h  1
>    32  6.4423082e+00 0.00e+00 5.57e-06  -7.0 1.64e-02    -  1.00e+00 1.00e+00h  1
>    33  6.4423081e+00 2.86e-04 1.80e-05  -7.0 3.78e-02    -  1.00e+00 1.00e+00h  1
>    34  6.4423057e+00 4.17e-03 7.11e-05  -7.0 1.05e-01    -  4.99e-01 1.00e+00h  1
>    35  6.4423001e+00 5.66e-03 1.05e-04  -7.0 4.43e-01    -  2.69e-01 1.82e-01h  1
>    36  6.4423086e+00 2.02e-03 7.96e-05  -7.0 1.09e-01    -  6.50e-01 1.00e+00h  1
>    37  6.4423039e+00 3.34e-03 6.46e-05  -7.0 3.66e-01    -  4.71e-01 2.70e-01h  1
>    38  6.4423083e+00 5.67e-04 3.73e-05  -7.0 5.26e-02    -  6.53e-01 1.00e+00h  1
>    39  6.4423072e+00 7.16e-04 4.56e-05  -7.0 2.08e-01    -  1.00e+00 1.74e-01h  2
> iter    objective    inf_pr   inf_du lg(mu)  ||d||  lg(rg) alpha_du alpha_pr  ls
>    40  6.4423083e+00 0.00e+00 3.43e-06  -7.0 9.07e-03    -  1.00e+00 1.00e+00h  1
>    41  6.4423081e+00 0.00e+00 5.39e-06  -7.0 1.66e-02    -  1.00e+00 1.00e+00H  1
>    42  6.4423084e+00 0.00e+00 7.53e-06  -7.0 2.48e-02    -  1.00e+00 1.00e+00h  1
>    43  6.4423085e+00 0.00e+00 1.82e-05  -7.0 5.52e-02    -  1.00e+00 1.00e+00H  1
>    44  6.4423060e+00 4.22e-03 8.00e-05  -7.0 1.05e-01    -  4.29e-01 1.00e+00h  1
>    45  6.4422998e+00 5.75e-03 1.10e-04  -7.0 4.12e-01    -  2.98e-01 2.02e-01h  1
>    46  6.4423041e+00 2.76e-03 3.87e-05  -7.0 3.12e-02    -  1.00e+00 5.00e-01h  2
>    47  6.4423060e+00 1.25e-03 1.55e-05  -7.0 2.66e-02    -  1.00e+00 5.00e-01h  2
>    48  6.4423083e+00 0.00e+00 4.26e-06  -7.0 1.30e-02    -  1.00e+00 1.00e+00h  1
>    49  6.4423082e+00 0.00e+00 9.33e-06  -7.0 2.48e-02    -  1.00e+00 1.00e+00H  1
> iter    objective    inf_pr   inf_du lg(mu)  ||d||  lg(rg) alpha_du alpha_pr  ls
>    50  6.4423099e+00 0.00e+00 3.04e-05  -7.0 6.40e-02    -  1.00e+00 1.00e+00H  1
>    51  6.4423066e+00 7.63e-04 2.70e-05  -7.0 1.67e-01    -  1.77e-01 2.95e-01h  2
>    52  6.4423075e+00 2.86e-04 1.76e-05  -7.0 3.78e-02    -  1.00e+00 5.00e-01h  2
>    53  6.4423077e+00 8.43e-05 1.03e-05  -7.0 2.81e-02    -  1.00e+00 5.00e-01h  2
>    54  6.4423080e+00 0.00e+00 5.93e-06  -7.0 1.31e-02    -  1.00e+00 5.00e-01h  2
>    55  6.4423082e+00 0.00e+00 3.72e-06  -7.0 7.91e-03    -  1.00e+00 1.00e+00h  1
>    56  6.4423082e+00 3.20e-05 1.12e-05  -7.0 2.35e-02    -  1.00e+00 1.00e+00h  1
>    57  6.4423077e+00 3.25e-04 3.60e-05  -7.0 6.90e-02    -  8.91e-01 5.00e-01h  2
>    58  6.4423075e+00 3.17e-04 8.58e-05  -7.0 8.65e-02    -  1.00e+00 1.95e-01h  3
>    59  6.4423083e+00 0.00e+00 2.00e-06  -7.0 3.99e-03    -  1.00e+00 1.00e+00h  1
> iter    objective    inf_pr   inf_du lg(mu)  ||d||  lg(rg) alpha_du alpha_pr  ls
>    60  6.4423083e+00 0.00e+00 5.86e-06  -7.0 1.23e-02    -  1.00e+00 1.00e+00H  1
>    61  6.4423087e+00 0.00e+00 1.88e-05  -7.0 3.94e-02    -  1.00e+00 1.00e+00H  1
>    62  6.4423078e+00 1.24e-04 2.93e-05  -7.0 1.13e-01    -  4.45e-01 2.50e-01h  3
>    63  6.4423080e+00 4.17e-06 9.16e-06  -7.0 9.47e-03    -  1.00e+00 5.00e-01h  2
>    64  6.4423082e+00 0.00e+00 4.69e-06  -7.0 9.70e-03    -  1.00e+00 1.00e+00h  1
>    65  6.4423086e+00 0.00e+00 1.47e-05  -7.0 3.07e-02    -  1.00e+00 1.00e+00H  1
>    66  6.4423076e+00 3.03e-04 8.68e-05  -7.0 1.05e-01    -  1.00e+00 3.68e-01h  2
>    67  6.4423076e+00 2.43e-04 4.24e-05  -7.0 5.69e-02    -  8.97e-01 2.50e-01h  3
>    68  6.4423079e+00 6.04e-05 1.40e-05  -7.0 4.91e-03    -  1.00e+00 5.00e-01h  2
>    69  6.4423081e+00 0.00e+00 3.42e-06  -7.0 4.38e-03    -  1.00e+00 5.00e-01h  2
> iter    objective    inf_pr   inf_du lg(mu)  ||d||  lg(rg) alpha_du alpha_pr  ls
>    70  6.4423082e+00 0.00e+00 3.31e-06  -7.0 5.31e-03    -  1.00e+00 5.00e-01h  2
>    71  6.4423082e+00 0.00e+00 3.64e-06  -7.0 5.29e-03    -  1.00e+00 5.00e-01h  2
>    72  6.4423083e+00 0.00e+00 2.81e-06  -7.0 5.87e-03    -  1.00e+00 1.00e+00h  1
>    73  6.4423083e+00 0.00e+00 8.81e-06  -7.0 1.84e-02    -  1.00e+00 1.00e+00H  1
>    74  6.4423079e+00 9.48e-04 2.66e-05  -7.0 5.55e-02    -  1.00e+00 1.00e+00h  1
>    75  6.4423052e+00 2.64e-03 9.24e-05  -7.0 2.11e-01    -  7.03e-01 3.60e-01h  1
>    76  6.4423061e+00 5.04e-03 2.70e-04  -7.0 1.15e-01    -  1.64e-01 1.00e+00f  1
>    77  6.4422935e+00 1.18e-02 2.22e-04  -7.0 8.79e-01    -  1.36e-01 1.70e-01h  1
>    78  6.4422916e+00 1.72e-02 3.00e-04  -7.0 4.70e-01    -  1.41e-02 2.33e-01h  1
>    79  6.4422912e+00 1.67e-02 3.21e-04  -7.0 5.37e-01    -  1.10e-01 3.26e-02f  1
> iter    objective    inf_pr   inf_du lg(mu)  ||d||  lg(rg) alpha_du alpha_pr  ls
>    80  6.4423017e+00 5.42e-03 1.76e-04  -7.0 1.22e-01    -  2.13e-01 8.92e-01h  1
>    81  6.4423072e+00 1.72e-03 3.83e-05  -7.0 6.08e-02    -  1.00e+00 1.00e+00h  1
>    82  6.4423040e+00 2.84e-03 8.00e-05  -7.0 2.16e-01    -  6.22e-01 3.59e-01h  1
>    83  6.4423071e+00 2.65e-03 1.13e-04  -7.0 8.88e-02    -  4.46e-01 1.00e+00h  1
>    84  6.4423040e+00 3.32e-03 2.41e-04  -7.0 3.61e-01    -  4.98e-01 1.53e-01h  1
>    85  6.4423081e+00 5.40e-04 2.12e-05  -7.0 3.03e-02    -  1.00e+00 1.00e+00h  1
>    86  6.4423074e+00 1.41e-03 2.82e-05  -7.0 6.03e-02    -  8.69e-01 1.00e+00h  1
>    87  6.4423057e+00 1.68e-03 1.28e-04  -7.0 2.42e-01    -  5.95e-01 1.88e-01h  2
>    88  6.4423070e+00 7.79e-04 3.75e-05  -7.0 1.17e-02    -  1.00e+00 5.00e-01h  2
>    89  6.4423076e+00 3.41e-04 2.19e-05  -7.0 1.38e-02    -  1.00e+00 5.00e-01h  2
> iter    objective    inf_pr   inf_du lg(mu)  ||d||  lg(rg) alpha_du alpha_pr  ls
>    90  6.4423079e+00 1.33e-04 1.19e-05  -7.0 1.73e-02    -  1.00e+00 5.00e-01h  2
>    91  6.4423080e+00 2.98e-05 1.25e-05  -7.0 1.91e-02    -  1.00e+00 5.00e-01h  2
>    92  6.4423081e+00 0.00e+00 1.41e-05  -7.0 2.12e-02    -  1.00e+00 5.00e-01h  2
>    93  6.4423084e+00 0.00e+00 1.12e-05  -7.0 2.34e-02    -  1.00e+00 1.00e+00H  1
>    94  6.4423076e+00 1.74e-03 3.42e-05  -7.0 7.12e-02    -  8.88e-01 1.00e+00h  1
>    95  6.4423041e+00 3.28e-03 8.99e-05  -7.0 2.81e-01    -  5.05e-01 2.69e-01h  1
>    96  6.4423057e+00 2.23e-03 5.51e-05  -7.0 8.86e-02    -  9.79e-01 5.00e-01h  2
>    97  6.4423056e+00 1.96e-03 1.17e-04  -7.0 1.19e-01    -  1.00e+00 2.63e-01h  2
>    98  6.4423069e+00 9.01e-04 1.71e-05  -7.0 2.46e-02    -  1.00e+00 5.00e-01h  2
>    99  6.4423075e+00 3.64e-04 2.43e-05  -7.0 2.04e-02    -  1.00e+00 5.00e-01h  2
> iter    objective    inf_pr   inf_du lg(mu)  ||d||  lg(rg) alpha_du alpha_pr  ls
>   100  6.4423078e+00 1.52e-04 1.63e-05  -7.0 2.55e-02    -  1.00e+00 5.00e-01h  2
>   101  6.4423081e+00 9.69e-05 1.28e-05  -7.0 2.66e-02    -  1.00e+00 1.00e+00h  1
>   102  6.4423074e+00 2.35e-03 3.91e-05  -7.0 8.12e-02    -  7.48e-01 1.00e+00h  1
>   103  6.4423033e+00 3.85e-03 9.44e-05  -7.0 3.24e-01    -  4.23e-01 2.36e-01h  1
>   104  6.4423056e+00 2.18e-03 5.75e-05  -7.0 6.91e-02    -  1.00e+00 5.00e-01h  2
>   105  6.4423071e+00 1.96e-03 3.52e-05  -7.0 7.49e-02    -  1.00e+00 1.00e+00h  1
>   106  6.4423032e+00 4.77e-03 3.25e-04  -7.0 1.44e-01    -  1.83e-01 6.94e-01h  1
>   107  6.4422980e+00 8.20e-03 3.11e-04  -7.0 2.29e+00    -  4.61e-02 4.24e-02h  1
>   108  6.4422927e+00 1.99e-02 3.30e-04  -7.0 1.05e+01    -  2.53e-05 1.30e-02f  1
>   109  6.4422906e+00 1.95e-02 3.39e-04  -7.0 9.47e-01    -  4.23e-02 2.76e-02f  1
> iter    objective    inf_pr   inf_du lg(mu)  ||d||  lg(rg) alpha_du alpha_pr  ls
>   110  6.4423006e+00 1.25e-02 3.36e-04  -7.0 2.93e-01    -  5.82e-02 3.81e-01H  1
>   111  6.4422802e+00 2.52e-02 1.71e-04  -7.0 6.31e-01    -  7.40e-02 3.85e-01h  1
>   112  6.4422723e+00 3.13e-02 1.63e-04  -7.0 6.25e-01    -  5.69e-02 2.19e-01h  1
>   113  6.4422965e+00 1.13e-02 3.38e-05  -7.0 1.11e-01    -  7.42e-01 8.49e-01h  1
>   114  6.4423011e+00 6.47e-03 3.15e-05  -7.0 7.44e-02    -  7.11e-01 5.00e-01h  2
>   115  6.4423036e+00 3.87e-03 2.01e-05  -7.0 8.11e-02    -  7.79e-01 4.27e-01h  2
>   116  6.4423055e+00 2.17e-03 4.61e-05  -7.0 5.46e-02    -  9.23e-01 5.00e-01h  2
>   117  6.4423065e+00 1.34e-03 3.56e-05  -7.0 6.57e-02    -  1.00e+00 5.00e-01h  2
>   118  6.4423108e+00 0.00e+00 4.24e-05  -7.0 8.53e-02    -  8.78e-01 1.00e+00H  1
>   119  6.4423093e+00 3.99e-05 1.82e-04  -7.0 3.21e-01    -  4.65e-01 6.64e-02h  3
> iter    objective    inf_pr   inf_du lg(mu)  ||d||  lg(rg) alpha_du alpha_pr  ls
>   120  6.4423075e+00 4.33e-04 2.45e-04  -7.0 2.14e-01    -  1.00e+00 1.90e-01h  2
>   121  6.4423081e+00 1.28e-05 7.64e-06  -7.0 1.45e-02    -  1.00e+00 1.00e+00h  1
>   122  6.4423091e+00 0.00e+00 2.25e-05  -7.0 4.62e-02    -  1.00e+00 1.00e+00H  1
>   123  6.4423075e+00 2.95e-04 1.53e-04  -7.0 1.65e-01    -  9.55e-01 2.43e-01h  2
>   124  6.4423079e+00 1.04e-04 1.20e-05  -7.0 1.87e-02    -  1.00e+00 5.00e-01h  2
>   125  6.4423080e+00 1.89e-05 1.37e-05  -7.0 1.82e-02    -  1.00e+00 5.00e-01h  2
>   126  6.4423081e+00 0.00e+00 1.37e-05  -7.0 2.16e-02    -  1.00e+00 5.00e-01h  2
>   127  6.4423084e+00 0.00e+00 1.11e-05  -7.0 2.29e-02    -  1.00e+00 1.00e+00H  1
>   128  6.4423100e+00 0.00e+00 3.40e-05  -7.0 7.06e-02    -  9.15e-01 1.00e+00H  1
>   129  6.4423098e+00 0.00e+00 1.95e-04  -7.0 2.76e-01    -  5.38e-01 9.04e-03h  6
> iter    objective    inf_pr   inf_du lg(mu)  ||d||  lg(rg) alpha_du alpha_pr  ls
>   130  6.4423097e+00 0.00e+00 3.61e-04  -7.0 2.62e-01    -  1.00e+00 4.83e-03h  7
>   131  6.4423068e+00 8.47e-04 2.45e-04  -7.0 2.09e-01    -  6.02e-01 2.68e-01h  2
>   132  6.4423075e+00 3.90e-04 1.90e-05  -7.0 2.28e-02    -  1.00e+00 5.00e-01h  2
>   133  6.4423078e+00 1.70e-04 1.43e-05  -7.0 2.08e-02    -  1.00e+00 5.00e-01h  2
>   134  6.4423082e+00 6.66e-05 1.28e-05  -7.0 2.64e-02    -  1.00e+00 1.00e+00h  1
>   135  6.4423105e+00 3.05e-05 4.11e-05  -7.0 8.72e-02    -  1.00e+00 9.96e-01H  1
>   136  6.4423011e+00 9.12e-03 2.39e-04  -7.0 1.46e-01    -  5.28e-02 1.00e+00f  1
>   137  6.4422970e+00 8.69e-03 2.42e-04  -7.0 3.74e-01    -  2.79e-01 1.46e-01h  1
>   138  6.4423047e+00 3.14e-03 2.05e-04  -7.0 8.75e-02    -  2.29e-01 1.00e+00h  1
>   139  6.4423035e+00 8.96e-03 2.36e-04  -7.0 1.59e-01    -  2.98e-01 1.00e+00H  1
> iter    objective    inf_pr   inf_du lg(mu)  ||d||  lg(rg) alpha_du alpha_pr  ls
>   140  6.4422945e+00 1.06e-02 1.87e-04  -7.0 5.45e-01    -  1.77e-01 1.87e-01h  1
>   141  6.4423080e+00 1.03e-04 6.88e-05  -7.0 2.89e-02    -  7.46e-01 1.00e+00h  1
>   142  6.4423095e+00 2.43e-06 3.48e-05  -7.0 6.64e-02    -  8.65e-01 1.00e+00H  1
>   143  6.4423053e+00 2.86e-03 6.43e-05  -7.0 1.46e-01    -  1.00e+00 6.52e-01h  1
>   144  6.4423051e+00 2.68e-03 6.96e-05  -7.0 8.32e-02    -  3.14e-01 2.30e-01h  1
>   145  6.4423050e+00 2.94e-03 1.60e-05  -7.0 2.76e-01    -  2.16e-01 1.67e-01h  2
>   146  6.4423064e+00 1.35e-03 5.07e-05  -7.0 4.63e-02    -  1.00e+00 5.00e-01h  2
>   147  6.4423082e+00 0.00e+00 3.92e-06  -7.0 1.24e-02    -  1.00e+00 1.00e+00h  1
>   148  6.4423085e+00 0.00e+00 1.64e-05  -7.0 3.35e-02    -  1.00e+00 1.00e+00H  1
>   149  6.4423118e+00 0.00e+00 6.54e-05  -7.0 1.03e-01    -  5.41e-01 1.00e+00H  1
> iter    objective    inf_pr   inf_du lg(mu)  ||d||  lg(rg) alpha_du alpha_pr  ls
>   150  6.4423116e+00 0.00e+00 2.29e-04  -7.0 3.87e-01    -  3.56e-01 7.06e-03h  6
>   151  6.4423115e+00 0.00e+00 4.88e-04  -7.0 3.66e-01    -  8.63e-01 4.06e-03h  7
>   152  6.4423014e+00 6.75e-03 2.59e-04  -7.0 3.04e-01    -  3.63e-01 4.76e-01h  1
>   153  6.4423011e+00 5.06e-03 4.32e-04  -7.0 1.22e-01    -  8.43e-02 4.34e-01h  1
>   154  6.4423046e+00 2.50e-03 1.79e-04  -7.0 2.83e-02  -4.0 1.00e+00 5.00e-01h  2
>   155  6.4423081e+00 2.97e-05 1.09e-05  -7.0 1.65e-02    -  1.00e+00 1.00e+00h  1
>
> at this step is still running...
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