Frama-C

Input—per 1M tokens

Output—per 1M tokens

Context—tokens

WeightsClosed

About

Frama-C is ranked #8 of 33 in formal verification tools on Inferse. It runs on Linux, macOS, Windows.

Compared on formal verification tools

Free plan: Yesframa-c.com

Facts

Purpose: Frama-C combines program analysis plug-ins to help guarantee the absence of bugs in C programs.frama-c.com · 3 Oct 2026
Formal methods: The site says most Frama-C analyzers use formal methods and are sound, meaning they do not stay silent when a bug might happen.frama-c.com · 3 Oct 2026
ACSL: Frama-C uses ACSL annotations to specify function contracts and verify conformance to functional specifications.frama-c.com · 3 Oct 2026
Eva analysis: Eva uses abstract interpretation to analyze C programs and report possible runtime errors within the undefined behaviors supported by its analysis.frama-c.com · 3 Oct 2026
Eva limits: Eva currently does not support recursive calls and analyzes only sequential code.frama-c.com · 3 Oct 2026
WP proofs: WP checks whether ACSL contracts hold for all possible executions using weakest-precondition calculus and external provers or proof assistants.frama-c.com · 3 Oct 2026
WP integrations: WP recommends Alt-Ergo, Coq, Z3, and CVC4, and supports other provers available through Why3.frama-c.com · 3 Oct 2026
Runtime checking: E-ACSL translates executable ACSL annotations into C code for runtime checking, but not all ACSL constructs can be translated.frama-c.com · 3 Oct 2026
Plugin ecosystem: The plugin catalog lists Eva, WP, E-ACSL, and other analyzers in the main distribution, alongside separately distributed and proprietary plugins.frama-c.com · 3 Oct 2026
Platforms: The download page provides installation packages for Linux and macOS and documents installation on Windows through WSL and opam.frama-c.com · 3 Oct 2026
Licensing: Frama-C is available under LGPL and can be dual-licensed for other uses.frama-c.com · 3 Oct 2026
Support: The team offers technical support, training, tutorials, hackathons, extensions, and customization; community support is available through GitLab issues, Stack Overflow, and a mailing list.frama-c.com · 3 Oct 2026
Intended users: The site describes Frama-C as used in teaching, experimental research, and industrial applications, including certification work for DO-178, IEC 60880, and Common Criteria EAL 6–7.frama-c.com · 3 Oct 2026
Maker: The platform is co-developed at CEA LIST and the Inria Saclay–Île-de-France Toccata team, in common with LRI-CNRS and Université Paris-Sud 11.frama-c.com · 3 Oct 2026