Fixing errors due to bound checking in nl writer

[andrewlee94]

Related to #1292

Summary/Motivation:

Pyomo 6.7.0 added checks for fixed variables which violate bounds which caused a number of our tests to fail (about half were deliberate violations in the diagnostics tools for testing, but the rest were real).

Changes proposed in this PR:

• Updated tests to remove bound violations

Legal Acknowledgement

By contributing to this software project, I agree to the following terms and conditions for my contribution:

1. I agree my contributions are submitted under the license terms described in the LICENSE.txt file at the top level of this directory.
2. I represent I am authorized to make the contributions and grant the license. If my employer has rights to intellectual property that includes these contributions, I represent that I have received permission to make contributions and grant the required license on behalf of that employer.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (446ff39) 77.41% compared to head (ca87f29) 77.40%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1293      +/-   ##
==========================================
- Coverage   77.41%   77.40%   -0.01%     
==========================================
  Files         390      390              
  Lines       63402    63402              
  Branches    11658    11658              
==========================================
- Hits        49083    49077       -6     
- Misses      11792    11797       +5     
- Partials     2527     2528       +1     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[jsiirola]

Looks reasonable, but is there a plan to restore the tests that trigger the initialization error?

[andrewlee94]

@jsiirola Not at this point, as the model.initialize() API is deprecated.