VerCors Example Database

A list of example programs and case studies verified by the VerCors verification toolset

About VerCors

VerCors is a toolset for practical mechanised verification of parallel and concurrent software under different concurrency models, notably heterogeneous and homogeneous threading. VerCors has verification support for multiple languages with concurrency features, such as Java, OpenCL (i.e. GPU kernels and atomics), and OpenMP for C (i.e. compiler directives). VerCors uses separation logic with permission accounting as its logical foundation.

Try online »


The source code of VerCors is publicly available and can be downloaded from Github. Installation instructions and example verification cases are also provided. VerCors has been tested on Linux, MacOS X, and on Windows (via Cygwin). Limited documentation of the annotation language is provided at the Github Wiki.

Download VerCors »


For questions and (technical) support, email to "w.h.m.oortwijn at utwente dot nl". Bug reports and feature requests can be submitted via the issue tracker on Github. A complete list of papers related to the VerCors project is given here.

Contact us »

Example database

Showing 21-40 of 139 items.
IDTitleVerification featuresExample sourceLanguageMore information
30Basic contractsOpenMP for Cmore info
32Array clearing (succeeding)Arrays, Iteration contractsJavamore info
33Matrix accessingMatricesOpenMP for Cmore info
34Kernel with host codeArrays, Barriers, GPU Kernels, Loop parallelisationsPVLmore info
35Forward dependencies (succeeding)Arrays, Iteration contracts, Loop parallelisationsOpenMP for Cmore info
36Histogram matrixArrays, Iteration contracts, MatricesOpenMP for Cmore info
37Histogram submatrixArrays, Iteration contracts, MatricesOpenMP for Cmore info
38Summation kernel (version 1)Arrays, GPU Kernels, Iteration contractsPVLmore info
39Summation kernel (version 2)Arrays, Atomics, Barriers, GPU Kernels, Iteration contracts, Loop parallelisationsPVLmore info
40Summation reductionArrays, Floats, Iteration contracts, Sequences, Summation patternsOpenMP for Cmore info
41Array clearing kernelArrays, GPU KernelsPVLmore info
42Array clearing in C (succeeding)Arrays, Iteration contractsOpenMP for Cmore info
43Submatrix clearingArrays, Iteration contracts, MatricesOpenMP for Cmore info
44Annotating function declarations in COpenMP for Cmore info
45Overloading in JavaJavamore info
48Domain of floatsFloats, SequencesSilvermore info
49Domain of listsListsSilvermore info
50Domain of option typesOption typesSilvermore info
56Counting testArrays, Sequences, Summation patternsJavamore info
57Float summationsArrays, Floats, Sequences, Summation patternsJavamore info