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[Frama-c-discuss] Fwd: [Why3-club] Announcement: first release of Why3
- Subject: [Frama-c-discuss] Fwd: [Why3-club] Announcement: first release of Why3
- From: Claude.Marche at inria.fr (Claude Marche)
- Date: Wed, 22 Dec 2010 17:47:28 +0100
The first release of Why3, also known as the Why platform next generation, is publicly available. Why3 is a new project, independent from Why. The detailed announcement is attached below. The Jessie plugin of the Why release 2.28 has the ability to use Why3 as back-end. You must install both Why 2.28 and Why3 for this to work. Using the Why3 GUI on a C file is done as follows frama-c -jessie -jessie-atp why3ide <file>.c (You can also run it in batch mode using frama-c -jessie -jessie-atp why3 <file>.c and process the generated Why3 file "<file>.jessie/why/<file>_why3.why" with Why3 batch tools). The main new features of interest in the GUI are * new provers available * calling provers in parallel * splitting on demand * ability to call Coq on a given VC to provide a proof script. Incidentally, this feature can be used to analyse the VC to understand why it is not proved automatically. * proof session saved and restored at startup Any question, remark or bug report concerning only Why3 should be done using the Why3 public discussion list and bug tracker. - Claude March? -------- Original Message -------- Subject: [Why3-club] Announcement: first release of Why3 Date: Wed, 22 Dec 2010 17:46:17 +0100 From: Claude Marche <Claude.Marche at inria.fr> To: why-discuss at lists.gforge.inria.fr, why3-club at lists.gforge.inria.fr We are happy to announce the first public release of Why3, also known as the Why platform next generation. It is a new project, independent from Why versions 2.xx. The home web page of Why3 is http://why3.gforge.inria.fr, where you can find the source distribution and the manual. See the manual for installation instructions and contact information. The main new features with respect to Why 2.xx are the following. 1) Completely redesigned input syntax for logic declarations * new syntax for terms and formulas * enumerated and algebraic data types, pattern matching * recursive definitions of logic functions and predicates, with termination checking * inductive definitions of predicates * declarations are structured in components called "theories", which can be reused and instantiated 2) More generic handling of goals and lemmas to prove * concept of proof task * generic concept of task transformation * generic approach for communicating with external provers 3) Source code organized as a library with a documented API, to allow access to Why3 features programmatically. 4) GUI with new features w.r.t. the former GWhy * session save and restore * prover calls in parallel * splitting, and more generally applying task transformations, on demand * ability to edit proofs for interactive provers (Coq only for the moment) on any subtask 5) Extensible architecture via plugins * users can define new transformations * users can add connections to additional provers Beware that some Why features are not yet available in Why3: * There is a VC generator distributed in Why3 in an experimental stage and intentionally undocumented in the current documentation (the input syntax for programs may change a lot in the future). * There is no front-end for other languages like C or Java. However, the last release Why 2.28 is able to use Why3 as a back-end Notice that Why3 is expected to replace Why2 in the future. As such, it is the project where improvements and new features will be implemented. As this is the first public release of Why3, it is likely that missing features, and possibly bugs, will raise soon. Please report those in the bug tracker, we will do our best to fix them and provide new releases in a short time. - Claude March?, for the Why3 developers team _______________________________________________ Why3-club mailing list Why3-club at lists.gforge.inria.fr http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/why3-club