rosette

by emina

emina /rosette

The Rosette solver-aided host language, sample solver-aided DSLs, and demos

442 Stars 55 Forks Last release: 3 months ago (3.1) Other 754 Commits 9 Releases

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The Rosette Language

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Rosette is a solver-aided programming language that extends Racket with language constructs for program synthesis, verification, and more. This repository includes the source code for Rosette, as well as several example solver-aided DSLs.

Installing Rosette

The easiest way to install Rosette is from Racket's package manager:

  • Download and install Racket 7.0 or later from http://racket-lang.org

  • Use Racket's

    raco
    tool to install Rosette:

$ raco pkg install rosette

Installing from source

Alternatively, you can install Rosette from source:

  • Download and install Racket 7.0 or later from http://racket-lang.org

  • Clone the rosette repository:

$ git clone https://github.com/emina/rosette.git
  • Uninstall any previous versions of Rosette:

$ raco pkg remove rosette
  • Use Racket's
    raco
    tool to install Rosette:

$ cd rosette

$ raco pkg install

Executing Rosette programs

  • Open the target program in DrRacket (e.g.,

    rosette/sdsl/fsm/demo.rkt
    ) and hit run!

  • DrRacket is the preferred way to execute Rosette programs. If you need to use the command line, make sure to first compile the program:

$ raco make 

$ racket 

Available languages

  • Rosette ships with two languages:

    #lang rosette/safe
    and
    #lang rosette
    .
  • The

    rosette/safe
    language includes only constructs that are safe to use with symbolic values. This (for now) excludes some nice Racket features, such as iteration constructs. The semantics of these constructs can be expressed in the core language, however, so no expressiveness is lost (just convenience). It is recommended for new users of Rosette to start with the
    rosette/safe
    language. To see the list of syntactic forms and procedures provided by
    rosette/safe
    , type the following into the Rosette REPL:

> (rosette)

'(define assert let let* ...)
  • The

    rosette
    language includes all of Racket. This places the burden on the programmer to decide whether a given Racket construct (which is not overriden by Rosette) is safe to use in a given context. Rosette provides no guarantees or checks for programs that use unsafe constructs. In the best case, such a program will fail with an exception if a symbolic value flows to a construct that does not support it. In the worst case, it will continue executing with incorrect semantics or cause more serious problems (e.g., data loss if it writes to a file).
  • For more on using Rosette, see The Rosette Guide. Rosette's internals are described in this PLDI'14 paper.

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