[Ipopt] Feasible initial guess but high inf_pr and inf_du values

[Rishi Amrit]

Hi,

   I am initializing IPOPT with a feasible initial guess but the output
looks like:

iter    objective    inf_pr   inf_du lg(mu)  ||d||  lg(rg) alpha_du alpha_pr
 ls
   0  8.3902116e+01 1.00e-01 1.49e+02  -1.0 0.00e+00    -  0.00e+00 0.00e+00
  0
   1  6.9363128e+01 9.06e-02 1.32e+02  -1.0 2.20e+00    -  4.16e-01
9.43e-02f  1
   2  1.9359378e+02 7.79e-02 1.13e+02  -1.0 6.40e+00    -  1.26e-01
1.40e-01f  1
   3  3.3197352e+02 4.77e-02 1.00e+02  -1.0 3.92e+00    -  1.29e-01
5.71e-01f  1
   4  3.1409124e+02 4.34e-02 8.26e+01  -1.0 3.22e+00    -  4.79e-01
7.90e-02f  1
   5  1.8281675e+02 1.98e-01 2.40e+01  -1.0 5.72e+00    -  5.92e-01
6.92e-01f  1
   6  1.5641328e+02 2.64e-01 2.01e+01  -1.0 1.09e+01    -  3.45e-01
4.75e-01f  1
   7  1.3479589e+02 3.77e-01 8.61e+00  -1.0 1.24e+01    -  4.26e-01
3.89e-01f  1


I am trying to understand why does the cost go up even when the initial
point is feasible. Is there a way to make sure that the cost always drops
from the initial cost ? I am using IPOPT 3.8.3

Thanks,

Rishi
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