Constrained Horn Clauses (CHC) is a fragment of First Order Logic (FOL) that is sufficiently expressive to describe many verification, inference, and synthesis problems including inductive invariant inference, model checking of safety properties, inference of procedure summaries, regression verification, and sequential equivalence. The CHC competition (CHC-COMP) will compare state-of-the-art tools for CHC solving with respect to performance and effectiveness on a set of publicly available benchmarks. The winners among participating solvers are recognized by measuring the number of correctly solved benchmarks as well as the runtime.
Organizers
- Gidon Ernst, LMU Munich, Germany
- Jose F. Morales, IMDEA Software Institute, Spain
Participation and Schedule
Participation guidelines and important dates for 2025 will be announced shortly.
Benchmarks
The competition benchmarks will be selected among the benchmarks available on GitHub. If you have benchmarks of any kind that can be made public, and that are not yet on Github, please upload! The format of the benchmarks is described here; a detailed description of the benchmark selection process can be found in CHC-COMP 2022: Competition Report. The final list of benchmarks used in the competition will be made public, together with the competition results.
The following tracks are planned for CHC-COMP 2025
- LIA-lin: Linear Integer Arithmetic, linear clauses
- LIA-nonlin: Linear Integer Arithmetic, nonlinear clauses
- LIA-lin-Arrays: Linear Integer Arithmetic + arrays, linear clauses
- LIA-nonlin-Arrays: Linear Integer Arithmetic + arrays, non-linear clauses
- LIA-nonlin-Arrays-nonrecADT: Linear Integer Arithmetic + arrays + non-recursive Algebraic data-types, nonlinear clauses
- ADT-LIA-nonlin: Algebraic data-types + Linear Integer Arithmetic, nonlinear clauses
In addition to the theories listed in the track names, benchmarks can also use the Bool theory.
Big thanks to
-
Everybody who organized and helped with the competition infrastructure over the last years:
Nikolaj Bjørner, Adrien Champion, Emanuele De Angelis, Grigory Fedyukovich, Hari Govind V K, Arie Gurfinkel, Dejan Jovanovic, and Philipp Ruemmer -
Aaron Stump and StarExec!
Previous Editions
Last updated: 2025-02-06 12:22:08 +0000