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by opnitro 867 days ago
As a huge believer in formal methods, this statement should _also_ be tempered somewhat. Formal proof is a great technique, but it's incredibly dependent on getting your specs right, which is very hard to do.

As an example, CompCERT is a formally verified C compiler, and it's had a couple bugs as a result of their specification of the underlying hardware being wrong.

1 comments

I know, I know, I'm mostly being silly about SEL4. Also, obviously, OpenBSD does a lot more than SEL4. :)