fides does not return information beyond (Boolean) success flag

[hmgaudecker]

Bug description

Running estimate_mlwith fides returns failure with message:

Maximize with 95 free parameters terminated unsuccessfully after 2802 iterations.

The value of criterion improved from -1184865.5053305852 to -1029883.7752618275.

Independent of the convergence criteria used by fides, the strength of convergence can be assessed by the following criteria:

                             one_step     five_steps 
relative_criterion_change  1.066e-10**   8.185e-08*  
relative_params_change     6.457e-08*    1.441e-07*  
absolute_criterion_change  0.0001098       0.08429   
absolute_params_change     2.969e-08*    5.068e-08*  

(***: change <= 1e-10, **: change <= 1e-8, *: change <= 1e-5. Change refers to a change between accepted steps. The first column only considers the last step. The second column considers the last five steps.)

There is no information on the failure beyond this report by estimagic and the Boolean flag.

Expected behavior

User should be able to retrieve more information from fides.

System

• OS: Ubuntu 20.04
• Package versions

estimagic                 0.4.0           pyhd8ed1ab_0    conda-forge
fides                     0.7.4
python                    3.9.13          h2660328_0_cpython    conda-forge