HCVS 2019 : 6th Workshop on Horn Clauses for Verification and Synthesis

  in Conferences   Posted on December 30, 2018

Conference Information

Submission Deadline Friday 15 Feb 2019
Conference & Submission Link https://conf.researchr.org/track/etaps-2019/hcvs-2019-papers
Conference Dates Apr 7, 2019 - Apr 7, 2019
Conference Address Prague, Czech Republic
Proceedings indexed by
Conference Organizers : ( Deadline extended ? Click here to edit )

Conference Call for Papers

6th Workshop on Horn Clauses for Verification and Synthesis (HCVS)

Co-located with ETAPS 2019

April 7, 2019 – Prague, Czech Republic


Many Program Verification and Synthesis problems of interest can be

modeled directly using Horn clauses, and many recent advances in the

Constraint/Logic Programming, Verification, and Automated Deduction

communities have centered around efficiently solving problems

presented as Horn clauses.

This workshop aims to bring together researchers working in the

communities of Constraint/Logic Programming (e.g., ICLP and CP),

Program Verification (e.g., CAV, TACAS, and VMCAI), and Automated

Deduction (e.g., CADE), on the topic of Horn clause based analysis,

verification and synthesis.

Horn clauses have been advocated by these communities at different

times and from different perspectives, and this workshop is organized

to stimulate interaction and a fruitful exchange and integration

of experiences.

This edition follows five previous meetings: HCVS 2018 in Oxford, UK

(w/FLoC), HCVS 2017 in Gothenburg, Sweden (w/CADE), HCVS 2016 in

Eindhoven, The Netherlands (w/ETAPS), HCVS 2015 in San Francisco, CA,

USA (w/CAV), and HCVS 2014 in Vienna, Austria (w/VSL).

Aims and Scope


Topics of interest include but are not limited to the use of Horn

clauses, constraints, and related formalisms in the following areas:

– Analysis and verification of programs and systems of various kinds

(e.g., imperative, object-oriented, functional, logic, higher-order,


– Program synthesis

– Program testing

– Program transformation

– Constraint solving

– Type systems

– Case studies and tools

– Challenging problems

We solicit regular papers describing theory and implementation of

Horn-clause-based analysis and tool descriptions. We also solicit

extended abstracts describing work-in-progress, as well as

presentations covering previously published results that are of

interest to the workshop.



HCVS 2019 will host the 2nd CHC competition (CHC-COMP), which will

compare state-of-the-art tools for CHC solving for performance and

effectiveness on a set of publicly available benchmarks.

More information can be found at https://chc-comp.github.io/

All participants of CHC-COMP are invited (but not obliged) to submit

a tool description for publishing either online or at the proceedings

through the EasyChair system for HCVS (the HCVS deadlines apply).

Important dates


– Paper submission: 15 Feb 2019

– Paper notification: 7 Mar 2019

– Camera-ready (for informal pre-proceedings): 15 Mar 2019

– Workshop: 7 Apr 2019

– Final camera-ready (for formal post-proceedings): 12 May 2019

Program Committee


– Nikolaj Bjørner (Microsoft Research)

– Adrien Champion (OCamlPro)

– Emanuele De Angelis (University of Chieti-Pescara) – chair

– Giorgio Delzanno (Università degli Studi di Genova)

– Grigory Fedyukovich (Princeton University) – chair

– Fabio Fioravanti (University of Chieti-Pescara)

– John Gallagher (Roskilde University)

– Alberto Griggio (Fondazione Bruno Kessler)

– Arie Gurfinkel (University of Waterloo)

– Matthias Heizmann (University of Freiburg)

– Dejan Jovanović (SRI International)

– Bishoksan Kafle (The University of Melbourne)

– Ekaterina Komendantskaya (Heriot-Watt University)

– Jorge A. Navas (SRI International)

– Nadia Polikarpova (University of California San Diego)

– Philipp Ruemmer (Uppsala University)

– Andrey Rybalchenko (Microsoft Research)

– Valerio Senni (ALES Srl – UTRC)

– Alicia Villanueva (Universitat Politècnica de València)

– He Zhu (Galois, Inc)



Submission has to be done in one of the following formats:

– Regular papers (up to 12 pages plus bibliography in EPTCS format), which

should present previously unpublished work (completed or in progress),

including descriptions of research, tools, and applications.

– Tool papers (up to 4 pages plus bibliography in EPTCS format), including the

papers written by the CHC-COMP participants, which can outline the theoretical

framework, the architecture, the usage, and experiments of the tool.

– Extended abstracts (up to 3 pages in EPTCS format), which describe work

in progress or aim to initiate discussions.

– Presentation-only papers, i.e., papers already submitted or presented at

a conference or another workshop. Such papers can be submitted in any format,

and will not be included in the workshop post-proceedings.

All submitted papers will be reviewed by the program committee and will be

selected for inclusion in accordance with the referee reports.

Accepted papers will be made available before the workshop on the HCVS website

and will be published in a volume of the Electronic Proceedings in Theoretical

Computer (EPTCS) series after the workshop (provided that enough regular and

tool papers are accepted).

Authors of accepted papers are required to ensure that at least one of them

will be present at the workshop. Papers must be submitted through the

EasyChair system using the web page:


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