An Efficient SMT-based Bounded Model Checker


Download Archive
Third Party Contributions
Index of Benchmarks

ESBMC is an open source, permissively licensed, context-bounded model checker based on satisfiability modulo theories for the verification of single- and multi-threaded C/C++ programs. It does not require the user to annotate the programs with pre- or postconditions, but allows the user to state additional properties using assert-statements, that are then checked as well. Furthermore, ESBMC provides two approaches (lazy and schedule recording) to model check multi-threaded programs. It converts the verification conditions using different background theories and passes them directly to an SMT solver. In addition, ESBMC provides C++ and Python APIs to access to the internals of ESBMC, allowing inspection and extension at any stage of the verification process.

ESBMC is a joint project with the Federal University of Amazonas, University of Bristol, University of Manchester, University of Stellenbosch, and University of Southampton.


15/03/2020: ESBMC v6.2 for Linux released.

18/02/2020: Our paper ESBMC: Scalable and Precise Test Generation based on the Floating-Point Theory (Competition Contribution) has been accepted at FASE 2020.

22/12/2019: ESBMC won the 3rd place in the Falsification category at SV-COMP 2020 and 3rd place in the bug-finding category at Test-Comp 2020! ESBMC was also ranked 5th place among 22 state-of-the-art verifiers at SV-COMP 2020!

Web Interface

Run ESBMC using our web interface.


For Linux: ESBMC-Linux.sh (last update: 19/06/2020)

For MacOS: ESBMC-Darwin.sh (last update: 19/06/2020). You need to have the Command Line Tools for Xcode, which can be downloaded here.

Conference Releases

NEW! We provide all tools, scripts, benchmark dataset, and results of our experimental evaluation reported in our STRV 2020 paper here.


Find the documentation of ESBMC’s public C and Python APIs here.

Bibtex Entry

If you cite ESBMC >= version 5.0, please use the tool paper in ASE 2018 (BibTex) as listed below:

    author    = {Mikhail R. Gadelha and
                 Felipe R. Monteiro and
                 Jeremy Morse and
                 Lucas C. Cordeiro and
                 Bernd Fischer and
                 Denis A. Nicole},
    title     = {{ESBMC} 5.0: An Industrial-Strength {C} Model Checker},
    booktitle = {$33^{rd}$ ACM/IEEE Int. Conf. on Automated Software Engineering (ASE'18)},
    pages     = {888--891},
    doi       = {10.1145/3238147.3240481},
    year      = {2018},
    publisher = {ACM},
    address   = {New York, NY, USA}


ESBMC is hosted on GitHub.

You should also read the ESBMC license.

Technical Support

Please use the ESBMC issue tracker for bug reports. For questions, comments or information on new releases, please use our Google group.