advent-of-tla
apalache
| advent-of-tla | apalache | |
|---|---|---|
| 1 | 6 | |
| 7 | 410 | |
| - | 2.7% | |
| 0.0 | 9.4 | |
| over 2 years ago | 13 days ago | |
| TLA | Scala | |
| MIT License | Apache License 2.0 |
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advent-of-tla
apalache
- Holiday protocols: secret Santa with Quint
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Learn TLA+
Anyone know of some good free software TLA+ model checkers? The "Other Tooling" mentions one alternative checker, https://apalache.informal.systems/, but that's all I could find. Thanks.
- Apalache – Symbolic Model Checker for TLA+
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A dependently typed language for proofs that you can implement in one day
> How are those types any different than outright stating a behavioral invariant?
Because the behavior of programs can't be verified without executing the program, but types can be checked purely based on syntax. There is way less source code than runtime states of any non-trivial program.
I've asked this same question many times, the TLA+ way is much more expressive and _simpler_. But model checking is a way harder problem than type checking, in general. SMT solvers make this line blurry - in fact, have you heard of the SMT-based model checker for TLA+, [Apalache](https://apalache.informal.systems/)?. I haven't tried it out, but that should be way faster than TLC which just brute forces the state-space exploration.
I'm totally with you about TLA+ style spec properties, but it's a big theoretical hurdle to cross before they could be as efficient as types.
- Apalache Release v0.15.1
- Apalache, a symbolic model checker for TLA+, v0.8.0 is released
What are some alternatives?
tlaplus - TLC is a model checker for specifications written in TLA+. The TLA+Toolbox is an IDE for TLA+.
timewinder - Temporal Logic of Actions in Rust via Starlark
Formality - A modern proof language [Moved to: https://github.com/kind-lang/Kind]
pgo - PGo is a source to source compiler from Modular PlusCal specs into Go programs.
BlockingQueue - Tutorial "Weeks of debugging can save you hours of TLA+". Each git commit introduces a new concept => check the git history!
ewd998 - Distributed termination detection on a ring, due to Shmuel Safra:
TLAplus - TLA+ questions, answers, and experiments
suslik - Synthesis of Heap-Manipulating Programs from Separation Logic
sled - the champagne of beta embedded databases
PomPom-Language - The cuteness implementation of a dependently typed language.