Side by side
PRISM vs VeriFast
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
PRISM supports a broad range of probabilistic models and analysis methods, and is free to use. Check the Java requirement and supported input formats before choosing it.
Visit PRISM Free plan ExtensionLinuxMac+1
VeriFast offers several ways to check separation-logic specifications across three programming languages. Its prototype status and unfinished documentation are relevant considerations for adoption.
Visit VeriFastThe facts
| PRISM | VeriFast | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | Linux, Mac, Windows | Extension, Linux, Mac, Windows |
| Lowest paid plan | Free or on request | Free or on request |
| Plans published | 1 | 1 |
| Maker | Not published | Not published |
| Website | prismmodelchecker.org | github.com |
| On formal verification tools | #19 of 34 | #23 of 34 |
PRISM: what it does well
- Supports multiple probabilistic model types.
- Includes symbolic, simulation, and abstraction-refinement methods.
- Free and open source under GNU GPL version 2.
- Runs on Linux, Windows, and macOS.
What to know first
- Requires Java 11 or later.
- Binary distributions require the Java Runtime Environment.
VeriFast: what it does well
- Supports C, Rust, and Java verification.
- Offers a desktop IDE, command-line tool, and VS Code extension.
- MIT-licensed source code and binaries are free.
- Provides nightly binaries and named releases.
What to know first
- VS Code extension requires a separate VeriFast installation.
- Documentation and the Rust reference are under construction.
Alternatives to PRISM Alternatives to VeriFast The whole list