This repository hosts VerCors, a toolset for the verification of concurrent and parallel programs. VerCors aims to verify many different concurrency constructs, including: heterogeneous concurrency (Java and C), GPU kernels using barriers and atomics (OpenCL), and compiler directives as used in deterministic parallelism (OpenMP). VerCors is able to prove data-race freedom, memory safety, and functional correctness of (concurrent) programs written in Java, C, OpenCL, OpenMP, and PVL (Prototypal Verification Language, a procedural toy language for prototyping new verification features). Moreover, VerCors is designed to be language-independent, which makes adding new front-end languages a straightforward engineering effort.
The VerCors toolset can be installed and used on MacOS X, Linux, and Windows (via Cygwin). When using Windows make sure that the environment variable JAVA_HOME is configured. A basic installation requires:
- Java Development Kit (JDK), version 8 (the current version of VerCors does not work with Java 9!)
- Git (on Windows you need Git Bash, see https://git-scm.com/downloads)
- Apache Ant, version 1.9.9 (see http://ant.apache.org for instructions)
- Apache Commons (from https://commons.apache.org/proper/commons-lang/)
- Scala SBT (see http://www.scala-sbt.org for instructions)
For a basic build of VerCors the following steps should be taken:
- Clone the VerCors repository using
git clone https://github.com/utwente-fmt/vercors.gitand move into the cloned directory,cd vercors. - Build VerCors with Ant by running
ant clean, followed byant. - Test whether the build was successful by running
./unix/bin/vct --test=examples/manual --tool=silicon --lang=pvl,java.
The last command tests the VerCors installation by verifying a large collection of examples (from the ./examples directory). This command should eventually report that all ? tests passed.
VerCors verifies programs that are annotated with JML-style specifications (the underlying theory uses separation logic with permission accounting). Details on the specification language can be found on the VerCors Wiki pages. Furthermore, a large collection of example programs can be found (and verified) in the ./examples directory.
The VerCors toolset can be used from the main directory by running ./unix/bin/vct --silver=silicon <filepath>, with <filepath> the path of the (Java, C, or PVL) file to verify.
- For questions and support, email to [email protected].
- For bug reports and feature requests, visit https://github.com/utwente-fmt/vercors/issues.
A complete list of papers on the VerCors project is given here.
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