TLA+ vs Ultimate Automizer
| TLA+ | Ultimate Automizer | |
|---|---|---|
| Free plan | Yes | No |
| Free trial | No | No |
| Paid from | Free | — |
| Open source | No | No |
| Platforms | extension, Linux, macOS, Windows | Linux, Web, Windows |
| Verification method | hybrid | model-checking |
| Supported formalisms | invariants | — |
| Counterexamples | Yes | — |
| Input languages | TLA+ and PlusCal | C, Boogie |
| Deployment | both | both |
| Free plan | — | Yes |
Both are listed in Best Formal Verification Tools. On Freedom251, Ultimate Automizer scores higher on our published basis.