How to identify constraints or boundary which limit iteration?

Hello,

Specifically, I would like to understand how to identify which constraints, equations, or boundaries might render further iterations impossible.

For example, I received the following warning messages as output after running:

******************************************** Errors and Warnings *********************************************

PROCESS status flag: Warning messages

ID LEVEL MESSAGE
150 2 CHECK: Lower limit of volume averaged electron temperature (te) has been raised
285 2 [tfcoil]: fiooic shouldn't be above 0.7 for engineering reliability.
244 2 PHYSICS: Diamagnetic fraction is more than 1%, but not calculated. Consider using...

While these warnings provide some insight, determining the specific constraints equation or iteration variable that limits the changes in the figure of merit remains challenging. For instance, I am puzzled as to why the electron temperature reached its lower limit when there appear to be no explicit constraints or boundaries set for it.

Any assistance or clarification you could provide on this matter would be greatly appreciated.