Side by side
Prusti vs Z3
Both stand on formal verification tools. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan LinuxMacWindows
Visit Prusti Free plan AndroidAPILinux+4
Z3 offers a no-cost, MIT-licensed solver with SMT-LIB2 input, proof artifacts, counterexamples, and numerous language interfaces. Building it requires Python, and some APIs need additional toolchains.
Visit Z3The facts
| Prusti | Z3 | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | Linux, Mac, Windows | Android, API, Linux, Mac, Self-hosted, Web, Windows |
| Lowest paid plan | Not published | Free or on request |
| Plans published | None | 1 |
| Maker | Not published | Not published |
| Website | pm.inf.ethz.ch | github.com |
| On formal verification tools | #30 of 34 | #26 of 34 |
Prusti: what it does well
Z3: what it does well
- MIT-licensed source code and downloads cost nothing.
- Supports proof artifacts and counterexamples.
- Offers documented interfaces for many programming languages.
- Builds can use CMake, vcpkg, or Bazel.
- Pre-built stable and nightly binaries are linked.
What to know first
- Python is required to build Z3.
- Additional toolchains are needed for several language APIs.
- Support issues for external bindings go to their package creators.