[loginf] Certified Programs and Proofs (CPP) 2021: First Call for Papers

Andrei Popescu andrei.h.popescu at gmail.com
Fri Apr 17 00:22:48 CEST 2020

Certified Programs and Proofs (CPP) is an international conference on
practical and theoretical topics in all areas that consider formal
verification and certification as an essential paradigm for their
work. CPP spans areas of computer science, mathematics, logic, and

CPP 2021 (https://popl21.sigplan.org/home/CPP-2021) will be held on
18-19 January 2021 and will be co-located with POPL 2021. CPP 2021 is
sponsored by ACM SIGPLAN, in cooperation with ACM SIGLOG.


* Due to the COVID-19 situation, it is currently uncertain whether CPP
2021 will be a physical conference in Copenhagen, Denmark or a virtual
* The submission deadline is one month earlier than usual.


* Abstract Deadline: 16 September 2020 at 23:59 AoE (UTC-12h)
* Paper Submission Deadline: 22 September 2020 at 23:59 AoE (UTC-12h)
* Notification (tentative): 19 November 2020
* Camera Ready Deadline (tentative): 10 December 2020
* Conference: 18-19 January 2021

Deadlines expire at the end of the day, anywhere on earth. Abstract
and submission deadlines are strict and there will be no extensions.


We welcome submissions in research areas related to formal
certification of programs and proofs. The following is a
non-exhaustive list of topics of interest to CPP:
* certified or certifying programming, compilation, linking, OS
kernels, runtime systems, security monitors, and hardware;
* certified mathematical libraries and mathematical theorems;
* proof assistants (e.g, ACL2, Agda, Coq, Dafny, F*, HOL4, HOL Light,
Idris, Isabelle, Lean, Mizar, Nuprl, PVS, etc);
* new languages and tools for certified programming;
* program analysis, program verification, and program synthesis;
* program logics, type systems, and semantics for certified code;
* logics for certifying concurrent and distributed systems;
* mechanized metatheory, formalized programming language semantics,
and logical frameworks;
* higher-order logics, dependent type theory, proof theory, logical
systems, separation logics, and logics for security;
* verification of correctness and security properties;
* formally verified blockchains and smart contracts;
* certificates for decision procedures, including linear algebra,
polynomial systems, SAT, SMT, and unification in algebras of interest;
* certificates for semi-decision procedures, including equality,
first-order logic, and higher-order unification;
* certificates for program termination;
* formal models of computation;
* mechanized (un)decidability and computational complexity proofs;
* formally certified methods for induction and coinduction;
* integration of interactive and automated provers;
* logical foundations of proof assistants;
* applications of AI and machine learning to formal certification;
* user interfaces for proof assistants and theorem provers;
* teaching mathematics and computer science with proof assistants.


Prior to the paper submission deadline, the authors should upload
their anonymized paper in PDF format through the HotCRP system at


The submissions must be written in English and provide sufficient
detail to allow the program committee to assess the merits of the
contribution. They must be formatted following the ACM SIGPLAN
Proceedings format using the acmart style with the sigplan option,
which provides a two-column style, using 10 point font for the main
text, and a header for double blind review submission, i.e.,


The submitted papers should not exceed 12 pages, including tables and
figures, but excluding bibliography and clearly marked appendices. The
papers should be self-contained without the appendices. Shorter papers
are welcome and will be given equal consideration. Submissions not
conforming to the requirements concerning format and maximum length
may be rejected without further consideration.

CPP 2021 will employ a lightweight double-blind reviewing process. To
facilitate this, the submissions must adhere to two rules:
(1) author names and institutions must be omitted, and
(2) references to authors’ own related work should be in the third
person (e.g., not "We build on our previous work ..." but rather "We
build on the work of ...").

The purpose of this process is to help the PC and external reviewers
come to an initial judgment about the paper without bias, not to make
it impossible for them to discover the authors if they were to try.
Nothing should be done in the name of anonymity that weakens the
submission or makes the job of reviewing it more difficult. In
particular, important background references should not be omitted or
anonymized. In addition, authors are free to disseminate their ideas
or draft versions of their papers as usual. For example, authors may
post drafts of their papers on the web or give talks on their research
ideas. POPL has answers to frequently asked questions addressing many
common concerns:

We encourage the authors to provide any supplementary material that is
required to support the claims made in the paper, such as proof
scripts or experimental data. This material must be uploaded at
submission time, as an archive, not via a URL. Two forms of
supplementary material may be submitted:
(1) Anonymous supplementary material is made available to the
reviewers before they submit their first-draft reviews.
(2) Non-anonymous supplementary material is made available to the
reviewers after they have submitted their first-draft reviews and have
learned the identity of the authors.

Please use anonymous supplementary material whenever possible, so that
it can be taken into account from the beginning of the reviewing

The submitted papers must adhere to the SIGPLAN Republication Policy
(https://www.sigplan.org/Resources/Policies/Republication/) and the
ACM Policy on Plagiarism
(https://www.acm.org/publications/policies/plagiarism). Concurrent
submissions to other conferences, journals, workshops with
proceedings, or similar forums of publication are not allowed. The PC
chairs should be informed of closely related work submitted to a
conference or journal in advance of submission. One author of each
accepted paper is expected to present it at the (possibly virtual)


The CPP 2021 proceedings will be published by the ACM, and authors of
accepted papers will be required to choose one of the following
publication options:
(1) Author retains copyright of the work and grants ACM a
non-exclusive permission-to-publish license and, optionally, licenses
the work under a Creative Commons license.
(2) Author retains copyright of the work and grants ACM an exclusive
permission-to-publish license.
(3) Author transfers copyright of the work to ACM.

For authors who can afford it, we recommend option (1), which will
make the paper Gold Open Access, and also encourage such authors to
license their work under the CC-BY license. ACM will charge you an
article processing fee for this option (currently, US$700), which you
have to pay directly with the ACM.

For everyone else, we recommend option (2), which is free and allows
you to achieve Green Open Access, by uploading a preprint of your
paper to a repository that guarantees permanent archival such as arXiv
or HAL. This is anyway a good idea for timely dissemination even if
you chose option 1. Ensuring timely dissemination is particularly
important for this edition, since, because of the very tight schedule,
the official proceedings might not be available in time for CPP.

The official CPP 2021 proceedings will also be available via SIGPLAN
OpenTOC (http://www.sigplan.org/OpenTOC/#cpp).

For ACM’s take on this, see their Copyright Policy
(http://www.acm.org/publications/policies/copyright-policy) and Author
Rights (http://authors.acm.org/main.html).


Cătălin Hriţcu, Inria Paris, France (co-chair)
Andrei Popescu, Middlesex University London, UK (co-chair)
Reynald Affeldt, National Institute of Advanced Industrial Science and
Technology (AIST), Japan
June Andronick, CSIRO's Data61 and UNSW, Australia
Arthur Azevedo de Amorim, Carnegie Mellon University, USA
Joachim Breitner, DFINITY Foundation, Germany
Jesper Cockx, TU Delft, Netherlands
Cyril Cohen, Université Côte d’Azur, Inria, France
Nils Anders Danielsson, University of Gothenburg / Chalmers University
of Technology, Sweden
Brijesh Dongol, University of Surrey, UK
Floris van Doorn, University of Pittsburgh, USA
Yannick Forster, Saarland University, Germany
Shilpi Goel, Centaur Technology, Inc., USA
Chung-Kil Hur, Seoul National University, South Korea
Moa Johansson, Chalmers University of Technology, Sweden
Ekaterina Komendantskaya, Heriot-Watt University, UK
Angeliki Koutsoukou-Argyraki, University of Cambridge, UK
Robert Y. Lewis, Vrije Universiteit Amsterdam, Netherlands
Hongjin Liang, Nanjing University, China
Andreas Lochbihler, Digital Asset GmbH, Switzerland
Petar Maksimović, Imperial College London, UK
William Mansky, University of Illinois at Chicago, USA
Anders Mörtberg, Stockholm University, Sweden
Sam Owre, SRI International, USA
Karl Palmskog, KTH Royal Institute of Technology, Sweden
Johannes Åman Pohjola, CSIRO's Data61 / University of New South Wales, Australia
Damien Pous, CNRS, ENS Lyon, France
Tahina Ramananandro, Microsoft Research, USA
Ilya Sergey, Yale-NUS College and National University of Singapore, Singapore
Natarajan Shankar, SRI International, USA
Kathrin Stark, Princeton University, USA
René Thiemann, University of Innsbruck, Austria
Amin Timany, Aarhus University, Denmark
Josef Urban, Czech Technical University in Prague, Czech Republic
Christoph Weidenbach, MPI-INF, Germany
Freek Wiedijk, Radboud University Nijmegen, Netherlands
Yannick Zakowski, University of Pennsylvania, USA


For any questions please contact the two PC chairs:
Cătălin Hriţcu <catalin.hritcu at gmail.com>,
Andrei Popescu <andrei.h.popescu at gmail.com>

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