framac-25.0-beta.md

layout: default
date: "11-05-2022"
short_title: Frama-C 25.0~beta (Manganese)
title: Beta release of Frama-C 25.0~beta (Manganese)
link: /fc-versions/manganese.html

Frama-C 25.0~beta (Manganese) is out. Download it here.

Main changes with respect to Frama-C 24 (Chromium) include:

Kernel

• The experimental AST Diff module allows to compute difference between the AST of two projects
• significant changes in AST types that might break existing development

E-ACSL

• add support for Linux's pthread concurrency

EVA

• New public API to run the analysis and access its results, intended to replace the old API in Db.Value.
• Improved multidim domain: it is now more precise and more robust, and is able to infer simple array invariants and disjunctive struct invariants.

WP

• uses Why3 1.5.0
• new supported ACSL features : decreases clause and general measures for variant and decreases
• new tactics: Clear for hypothesis removal and ModMask for rewriting of mask and modulos
• removed deprecated legacy WP engine and native prover output (always use Why3)
• fixes loop invariant order and collect more hypotheses when proving them

Ivette (New Frama-C GUI)

We are introducing Ivette, a new GUI for Frama-C. In this preliminary version, only EVA and some of its derived plug-ins are supported.

Build & install instructions are in ivette/INSTALL.md from the source tarball. To try it, simply use ivette in replacement of frama-c-gui. Your feedback is welcome.

Have fun !