Apalache
5.4#31 in formal verification toolsAPILinuxSelf-hosted
VisitApalache vs Why3
What both publish
| Fact | Apalache | Why3 |
|---|---|---|
| Installation | The documentation describes running Apalache from a prebuilt JVM package, with Docker, or by building from source. | Why3 can be installed via Opam, run from a Docker image, or compiled from source. |
| License | The repository identifies Apalache as Apache-2.0 licensed. | TryWhy3 is distributed under the GNU Lesser General Public License version 2.1 with a special linking exception. |
| Purpose | Apalache is a symbolic model checker for TLA+ specifications. | Why3 is a platform for deductive program verification that uses WhyML and external theorem provers to discharge verification conditions. |
| Support | The site names Igor Konnov as the contact person. | The project provides a user mailing list, a Zulip chat, and a bug tracking system. |
Apalache plans
No prices published.
Why3 plans
- Why3Free
Pick Apalache if…
You want what its maker publishes above — check its page for the details.
Pick Why3 if…
Why3 suits developers and researchers working on deductive verification with contracts and WhyML. It may also fit users who need to connect external provers or use its OCaml API.