An Efficient SMT-based Bounded Model Checker


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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.

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


02/09/2022: ESBMC v7.0 for all platforms.

21/03/2021: ESBMC v6.7 for Linux, macOS and Windows released.

30/12/2020: ESBMC v6.6 for Linux and MacOS released.

30/12/2020: ESBMC has successfully participated at the 10th Intl. Competition on Software Verification held at TACAS 2021 in Luxembourg. ESBMC won first place in the ReachSafety-XCSP subcategory. Second place in the SoftwareSystems-AWS-C-Common-ReachSafety, ReachSafety-ECA, and ReachSafety-Arrays subcategories. Fourth place in the ReachSafety category. Fifth place in the SoftwareSystems category. Overall, the sixth place among 25 state-of-the-art software verifiers at SV-COMP 2021!

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.

Web Interface

Run ESBMC using our web interface.


For Windows: ESBMC-Windows.zip

For Linux: ESBMC-Linux.sh

For MacOS: ESBMC-Darwin.sh. 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 2021 paper 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.