opam-version: "2.0"
maintainer: "guillaume.melquiond@inria.fr"
authors: [
  "François Bobot"
  "Jean-Christophe Filliâtre"
  "Claude Marché"
  "Guillaume Melquiond"
  "Andrei Paskevich"
]
homepage: "http://why3.lri.fr/"
license: "LGPL-2.1-only"
doc: "http://why3.lri.fr/#documentation"
bug-reports: "https://gforge.inria.fr/tracker/?func=browse&group_id=2990&atid=10293"
dev-repo: "git+https://scm.gforge.inria.fr/anonscm/git/why3/why3.git"
tags: [
  "deductive"
  "program verification"
  "formal specification"
  "automated theorem prover"
  "interactive theorem prover"
]
depends: [
  "ocaml" {>= "4.02.3"}
  "why3-base" {= "0.88.0"}
  "lablgtk"
  "conf-gtksourceview"
  "zarith"
  "camlzip"
  "ocamlgraph"
]
depopts: [
  "coq"
]
messages:[
"Coq realizations of Why3 theories are only available if Coq is installed" { !coq:installed }
]
synopsis: "Why3 environment for deductive program verification."
description: """
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."""
