I work on distributed systems and have started pushing for us to use TLA+/PlusCal to model them. I have a simple PlusCal model of a system with two threads whi

I work on distributed systems and have started pushing for us to use TLA+/PlusCal to model them. I have a simple PlusCal model of a system with two threads which juggles network and disk I/O which I can e-mail you if you like. It's not at all a complex system, but I think it captures the basics of modeling concurrency and I/O well.