Re:Introduction to TLA+ Model Checking in the Command Line
by pron on Friday January 18, 2019 @07:09AM
(#18938725)
You can find some big deductive proofs here: https://members.loria.fr/SMerz/papers.html
But you're right that deductive proofs are hardly ever worth the effort when you have a model checker. If you can get 99.99999% confidence for essentially free, most people wouldn't pay extra months of work to get to 99.999999% confidence.
That being said, model checking alone is really powerful and can uncover serious design flaws.