package why3

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Why3 environment for deductive program verification


Dune Dependency






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.

Dependencies (4)

  1. num
  2. menhir >= "20170418"
  3. ocamlfind build
  4. ocaml >= "4.08.0"

Dev Dependencies (1)

  1. conf-autoconf build & dev

Used by (8)

  1. colibrics
  2. frama-c >= "28.0"
  3. frama-c-metacsl < "0.4"
  4. lambdapi >= "2.3.1"
  5. pilat >= "1.6"
  6. why3-coq >= "1.7.2"
  7. why3-ide >= "1.7.2"
  8. why3find

Conflicts (4)

  1. base-effects
  2. mlmpfr < "4.0.0"
  3. ocamlgraph < "1.8.2"
  4. why3-base

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