CPAchecker vs UPPAAL
CPAchecker
cpachecker.sosy-lab.orgUPPAAL
uppaal.orgSide by side
| Figure | CPAchecker | UPPAAL |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| Self-hosted | Yes | — |
| Plans published | 1 | 2 |
| Spec score · Formal Verification Tools | 8.0 (#10) | 7.3 (#28) |
| Development | Development takes place on GitLab, and the download page also links to a read-only GitHub mirror. | UPPAAL was created through collaboration between Uppsala University and Aalborg University and is maintained by Aalborg University's Distributed, Embedded and Intelligent Systems group. |
| Purpose | CPAchecker is a tool for configurable software verification based on configurable program analysis concepts. | UPPAAL is an integrated environment for modeling, simulation, and verification of real-time systems represented as networks of timed automata. |
| Support | The project directs installation questions, bug reports, and suggestions to its CPAchecker users mailing list, and also provides an issue tracker. | Academic support is community-based, with documentation, discussions, mailing lists, and Stack Overflow; the team says it may be unable to answer all direct requests. |
Plans
In their own words
CPAchecker
CPAchecker is a configurable software verification tool based on configurable program analysis concepts. It accepts C and SV-LIB inputs, lists predicate analysis for SV-LIB programs, and supports invariants, counterexamples, and proof artifacts. It can also validate termination witnesses in YAML formats 2.1 and 1.0. The project lists a hybrid verification method and provides a self-hosted deployment. CPAchecker is free software under the Apache 2.0 License. Version 4.2.2, released in December 2025, is available as Unix and Windows ZIP archives; Debian and Ubuntu users can install it from the SoSy-Lab APT repository, and a Docker image is available. Java 21 or later is required as of version 4.2. An older version, 1.6.1, can be accessed through a web interface, where some functions are unavailable in the restricted environment. Documentation includes installation instructions, tutorials, and getting-started guidance. Installation questions, bug reports, and suggestions can go to the users mailing list or issue tracker. The project is based in Munich, Germany.
UPPAAL
UPPAAL is an integrated environment for modeling, simulating, and verifying real-time systems as networks of timed automata. Its language supports clock and data variables, including bounded integers and arrays. The model checker uses symbolic state-space exploration for invariant and reachability properties and can produce diagnostic traces. Statistical Model Checking estimates probabilities, compares a probability with a value, or compares two probabilities. UPPAAL Stratego supports generating, optimizing, comparing, and exploring strategies for stochastic priced timed games. Related tools include CORA, TRON, TIGA, ECDAR, and COSHY for cost-optimal analysis, testing, timed games, refinement, and hybrid-system control. Typical applications include real-time controllers and timing-critical communication protocols. Desktop packages support Windows, macOS, and Linux, including macOS x86_64 and Aarch64. The graphical interface needs Java 17 or later; verifyta runs without Java. Academic users register for a free license key, retrieved over the internet. Commercial and other non-academic use requires a separate license.