Publications 2016
BackBooks / Journals / Conferences / PhD theses / Misc. / Reports
Books and book chapters
Journals
[5] | Umut A Acar, Arthur Charguéraud, and Mike Rainey. Oracle-guided scheduling for controlling granularity in implicitly parallel languages. Journal of Functional Programming, 26, November 2016. [ bib | DOI | full text on HAL ] |
[4] |
Érik Martin-Dorel and Guillaume Melquiond.
Proving tight bounds on univariate expressions with elementary
functions in Coq.
Journal of Automated Reasoning, 2016.
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DOI |
full text on HAL ]
Keywords: Coq proof assistant ; formal proof ; decision procedure ; interval arithmetic ; floating-point arithmetic ; nonlinear arithmetic |
[3] |
Jean-Christophe Filliâtre, Léon Gondelman, and Andrei Paskevich.
The spirit of ghost code.
Formal Methods in System Design, 48(3):152--174, 2016.
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DOI |
full text on HAL ]
In the context of deductive program verification, ghost code is part of the program that is added for the purpose of specification. Ghost code must not interfere with regular code, in the sense that it can be erased without observable difference in the program outcome. In particular, ghost data cannot participate in regular computations and ghost code cannot mutate regular data or diverge. The idea exists in the folklore since the early notion of auxiliary variables and is implemented in many state-of-the-art program verification tools. However, a rigorous definition and treatment of ghost code is surprisingly subtle and few formalizations exist. Keywords: Why3 |
[2] |
Claire Dross, Sylvain Conchon, Johannes Kanig, and Andrei Paskevich.
Adding decision procedures to SMT solvers using axioms with
triggers.
Journal of Automated Reasoning, 56(4):387--457, 2016.
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SMT solvers are efficient tools to decide the satisfiability of ground formulas, including a number of built-in theories such as congruence, linear arithmetic, arrays, and bit-vectors. Adding a theory to that list requires delving into the implementation details of a given SMT solver, and is done mainly by the developers of the solver itself. For many useful theories, one can alternatively provide a first-order axiomatization. However, in the presence of quantifiers, SMT solvers are incomplete and exhibit unpredictable behavior. Consequently, this approach can not provide us with a complete and terminating treatment of the theory of interest. In this paper, we propose a framework to solve this problem, based on the notion of instantiation patterns, also known as triggers. Triggers are annotations that suggest instances which are more likely to be useful in proof search. They are implemented in all SMT solvers that handle first-order logic and are included in the SMT-LIB format. In our framework, the user provides a theory axiomatization with triggers, along with a proof of completeness and termination properties of this axiomatization, and obtains a sound, complete, and terminating solver for her theory in return. We describe and prove a corresponding extension of the traditional Abstract DPLL Modulo Theory framework. Implementing this mechanism in a given SMT solver requires a one-time development effort. We believe that this effort is not greater than that of adding a single decision procedure to the same SMT solver. We have implemented the proposed extension in the Alt-Ergo prover and we discuss some implementation details in the paper. To show that our framework can handle complex theories, we prove completeness and termination of a feature-rich axiomatization of doubly-linked lists. Our tests show that our approach results in a better performance of the solver on goals that stem from the verification of programs manipulating doubly-linked lists. |
[1] | Sylvie Boldo, Catherine Lelay, and Guillaume Melquiond. Formalization of real analysis: A survey of proof assistants and libraries. Mathematical Structures in Computer Science, 2016. [ bib | full text on HAL ] |
Conferences
[12] | Nikolai Kosmatov, Claude Marché, Yannick Moy, and Julien Signoles. Static versus dynamic verification in Why3, Frama-C and SPARK 2014. In Tiziana Margaria and Bernhard Steffen, editors, 7th International Symposium on Leveraging Applications of Formal Methods, Verification and Validation (ISoLA), volume 9952 of Lecture Notes in Computer Science, pages 461--478, Corfu, Greece, October 2016. Springer. [ bib | full text on HAL ] |
[11] | Umut A Acar, Arthur Charguéraud, Mike Rainey, and Filip Sieczkowski. Dag-calculus: a calculus for parallel computation. In Proceedings of the 21st ACM SIGPLAN International Conference on Functional Programming (ICFP), pages 18--32, Nara, Japan, September 2016. [ bib | DOI | full text on HAL ] |
[10] | Assia Mahboubi, Guillaume Melquiond, and Thomas Sibut-Pinote. Formally verified approximations of definite integrals. In Jasmin Christian Blanchette and Stephan Merz, editors, Proceedings of the 7th International Conference on Interactive Theorem Proving, volume 9807 of Lecture Notes in Computer Science, Nancy, France, August 2016. [ bib | DOI | full text on HAL | .pdf ] |
[9] | Sylvie Boldo. Iterators: where folds fail. In Workshop on High-Consequence Control Verification, Toronto, Canada, July 2016. [ bib | full text on HAL | .pdf ] |
[8] | Sylvie Boldo. Computing a correct and tight rounding error bound using rounding-to-nearest. In 9th International Workshop on Numerical Software Verification, Toronto, Canada, July 2016. [ bib | full text on HAL | .pdf ] |
[7] | Martin Clochard, Léon Gondelman, and Mário Pereira. The Matrix reproved. In Sandrine Blazy and Marsha Chechik, editors, 8th Working Conference on Verified Software: Theories, Tools and Experiments (VSTTE), Lecture Notes in Computer Science, Toronto, Canada, July 2016. Springer. [ bib | full text on HAL ] |
[6] | Jean-Christophe Filliâtre and Mário Pereira. Producing all ideals of a forest, formally (verification pearl). In Sandrine Blazy and Marsha Chechik, editors, 8th Working Conference on Verified Software: Theories, Tools and Experiments (VSTTE), Lecture Notes in Computer Science, Toronto, Canada, July 2016. Springer. [ bib | full text on HAL ] |
[5] | Clément Fumex, Claire Dross, Jens Gerlach, and Claude Marché. Specification and proof of high-level functional properties of bit-level programs. In Sanjai Rayadurgam and Oksana Tkachuk, editors, 8th NASA Formal Methods Symposium, volume 9690 of Lecture Notes in Computer Science, pages 291--306, Minneapolis, MN, USA, June 2016. Springer. [ bib | full text on HAL ] |
[4] |
Jean-Christophe Filliâtre and Mário Pereira.
A modular way to reason about iteration.
In Sanjai Rayadurgam and Oksana Tkachuk, editors, 8th NASA
Formal Methods Symposium, volume 9690 of Lecture Notes in Computer
Science, Minneapolis, MN, USA, June 2016. Springer.
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full text on HAL ]
In this paper we present an approach to specify programs performing iterations. The idea is to specify iteration in terms of the nite sequence of the elements enumerated so far, and only those. In particular, we are able to deal with non-deterministic and possibly innite iteration. We show how to cope with the issue of an iteration no longer being consistent with mutable data. We validate our proposal using the deductive verication tool Why3 and two iteration paradigms, namely cursors and higher-order iterators. For each paradigm, we verify several implementations of iterators and client code. This is done in a modular way, i.e., the client code only relies on the specication of the iteration. |
[3] | Arthur Charguéraud. Higher-Order Representation Predicates in Separation Logic. In Proceedings of the 5th ACM SIGPLAN Conference on Certified Programs and Proofs, Saint Petersburg, Florida, United States, January 2016. [ bib | full text on HAL ] |
[2] | David Hauzar, Claude Marché, and Yannick Moy. Counterexamples from proof failures in SPARK. In Rocco De Nicola and Eva Kühn, editors, Software Engineering and Formal Methods, Lecture Notes in Computer Science, pages 215--233, Vienna, Austria, 2016. [ bib | DOI | full text on HAL ] |
[1] | Jean-Christophe Filliâtre and Mário Pereira. Itérer avec confiance. In Vingt-septièmes Journées Francophones des Langages Applicatifs, Saint-Malo, France, January 2016. [ bib | full text on HAL ] |
PhD theses
[1] | Léon Gondelman. A Pragmatic Type System for Deductive Software Verification. Thèse de doctorat, Université Paris-Saclay, 2016. [ bib | full text on HAL ] |
Misc.
Reports
[4] | Ran Chen, Martin Clochard, and Claude Marché. A formal proof of a Unix path resolution algorithm. Research Report RR-8987, Inria, December 2016. [ bib | full text on HAL ] |
[3] | David Hauzar, Claude Marché, and Yannick Moy. Counterexamples from proof failures in the SPARK program verifier. Research Report RR-8854, Inria Saclay Ile-de-France, February 2016. [ bib | full text on HAL ] |
[2] |
Jean-Christophe Filliâtre, Léon Gondelman, and Andrei Paskevich.
A pragmatic type system for deductive verification.
Research report, Université Paris Sud, 2016.
https://hal.archives-ouvertes.fr/hal-01256434v3.
[ bib |
full text on HAL ]
In the context of deductive verication, it is customary today to handle programs with pointers using either separation logic, dynamic frames, or explicit memory models. Yet we can observe that in numerous programs, a large amount of code ts within the scope of Hoare logic, provided we can statically control aliasing. When this is the case, the code correctness can be reduced to simpler verication conditions which do not require any explicit memory model. This makes verication conditions more amenable both to automated theorem proving and to manual inspection and debugging. In this paper, we devise a method of such static aliasing control for a programming language featuring nested data structures with mutable components. Our solution is based on a type system with singleton regions and eects, which we prove to be sound. |
[1] | The Coq Development Team. The Coq Proof Assistant Reference Manual -- Version V8.6, 2016. http://coq.inria.fr. [ bib | http ] |
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