why3

AuthorsFrançois Bobot, Jean-Christophe Filliâtre, Claude Marché, Guillaume Melquiond and Andrei Paskevich
LicenseGNU Lesser General Public License version 2.1
Homepagehttp://why3.lri.fr/
Issue Trackerhttps://gforge.inria.fr/tracker/?func=browse&group_id=2990&atid=10293
Tagsdeductive, program verification, formal specification, automated theorem prover and interactive theorem prover
Maintainerguillaume.melquiond@inria.fr
Dependencies
&camlzip
conf-gtksourceview
lablgtk
ocamlgraph
why3-base0.87.1
zarith
Availableocaml-version >= "4.01.0"
PublishedJul 9, 2016
StatisticsNot installed in the last month.
Edithttps://github.com/ocaml/opam-repository/tree/master/packages/why3/why3.0.87.1/opam

Why3 environment for deductive program verification.

Why3 provides a rich language for specification and programming, called WhyML, and relies on external theorem provers, both automated and interactive, to discharge verification conditions. Why3 comes with a standard library of logical theories (integer and real arithmetic, Boolean operations, sets and maps, etc.) and basic programming data structures (arrays, queues, hash tables, etc.). A user can write WhyML programs directly and get correct-by-construction OCaml programs through an automated extraction mechanism. WhyML is also used as an intermediate language for the verification of C, Java, or Ada programs.

Why3 is a complete reimplementation of the former Why platform. Among the new features are: numerous extensions to the input language, a new architecture for calling external provers, and a well-designed API, allowing to use Why3 as a software library. An important emphasis is put on modularity and genericity, giving the end user a possibility to easily reuse Why3 formalizations or to add support for a new external prover if wanted.

Necessary for
why
>= 2.36
Optional for
frama-c-base
>= 20160502
why
&>= 2.34
2.35