2 Search Results for "Peltier, Nicolas"

Document
DOI: 10.4230/LIPIcs.TIME.2022.9
Reasoning on Dynamic Transformations of Symbolic Heaps

Authors: Nicolas Peltier

Published in: LIPIcs, Volume 247, 29th International Symposium on Temporal Representation and Reasoning (TIME 2022)

Abstract
Building on previous results concerning the decidability of the satisfiability and entailment problems for separation logic formulas with inductively defined predicates, we devise a proof procedure to reason on dynamic transformations of memory heaps. The initial state of the system is described by a separation logic formula of some particular form, its evolution is modeled by a finite transition system and the expected property is given as a linear temporal logic formula built over assertions in separation logic.
Cite as

Nicolas Peltier. Reasoning on Dynamic Transformations of Symbolic Heaps. In 29th International Symposium on Temporal Representation and Reasoning (TIME 2022). Leibniz International Proceedings in Informatics (LIPIcs), Volume 247, pp. 9:1-9:20, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2022)

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@InProceedings{peltier:LIPIcs.TIME.2022.9,
  author =	{Peltier, Nicolas},
  title =	{{Reasoning on Dynamic Transformations of Symbolic Heaps}},
  booktitle =	{29th International Symposium on Temporal Representation and Reasoning (TIME 2022)},
  pages =	{9:1--9:20},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-262-4},
  ISSN =	{1868-8969},
  year =	{2022},
  volume =	{247},
  editor =	{Artikis, Alexander and Posenato, Roberto and Tonetta, Stefano},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/LIPIcs.TIME.2022.9},
  URN =		{urn:nbn:de:0030-drops-172566},
  doi =		{10.4230/LIPIcs.TIME.2022.9},
  annote =	{Keywords: Separation Logic, Symbolic Heaps, Linear Temporal Logic}
}
Document
DOI: 10.4230/LIPIcs.CSL.2021.20
Decidable Entailments in Separation Logic with Inductive Definitions: Beyond Establishment

Authors: Mnacho Echenim, Radu Iosif, and Nicolas Peltier

Published in: LIPIcs, Volume 183, 29th EACSL Annual Conference on Computer Science Logic (CSL 2021)

Abstract
We define a class of Separation Logic [Ishtiaq and O'Hearn, 2001; J.C. Reynolds, 2002] formulae, whose entailment problem given formulae ϕ, ψ₁, …, ψ_n, is every model of ϕ a model of some ψ_i? is 2-EXPTIME-complete. The formulae in this class are existentially quantified separating conjunctions involving predicate atoms, interpreted by the least sets of store-heap structures that satisfy a set of inductive rules, which is also part of the input to the entailment problem. Previous work [Iosif et al., 2013; Jens Katelaan et al., 2019; Jens Pagel and Florian Zuleger, 2020] consider established sets of rules, meaning that every existentially quantified variable in a rule must eventually be bound to an allocated location, i.e. from the domain of the heap. In particular, this guarantees that each structure has treewidth bounded by the size of the largest rule in the set. In contrast, here we show that establishment, although sufficient for decidability (alongside two other natural conditions), is not necessary, by providing a condition, called equational restrictedness, which applies syntactically to (dis-)equalities. The entailment problem is more general in this case, because equationally restricted rules define richer classes of structures, of unbounded treewidth. In this paper we show that (1) every established set of rules can be converted into an equationally restricted one and (2) the entailment problem is 2-EXPTIME-complete in the latter case, thus matching the complexity of entailments for established sets of rules [Jens Katelaan et al., 2019; Jens Pagel and Florian Zuleger, 2020].
Cite as

Mnacho Echenim, Radu Iosif, and Nicolas Peltier. Decidable Entailments in Separation Logic with Inductive Definitions: Beyond Establishment. In 29th EACSL Annual Conference on Computer Science Logic (CSL 2021). Leibniz International Proceedings in Informatics (LIPIcs), Volume 183, pp. 20:1-20:18, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2021)

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@InProceedings{echenim_et_al:LIPIcs.CSL.2021.20,
  author =	{Echenim, Mnacho and Iosif, Radu and Peltier, Nicolas},
  title =	{{Decidable Entailments in Separation Logic with Inductive Definitions: Beyond Establishment}},
  booktitle =	{29th EACSL Annual Conference on Computer Science Logic (CSL 2021)},
  pages =	{20:1--20:18},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-175-7},
  ISSN =	{1868-8969},
  year =	{2021},
  volume =	{183},
  editor =	{Baier, Christel and Goubault-Larrecq, Jean},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/LIPIcs.CSL.2021.20},
  URN =		{urn:nbn:de:0030-drops-134546},
  doi =		{10.4230/LIPIcs.CSL.2021.20},
  annote =	{Keywords: Separation logic, Induction definitions, Inductive theorem proving, Entailments, Complexity}
}
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