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Documents authored by Escobar, Santiago

Document
Complete Volume
DOI: 10.4230/OASIcs.WPTE.2015
OASIcs, Volume 46, WPTE'15, Complete Volume

Authors: Yuki Chiba, Santiago Escobar, Naoki Nishida, David Sabel, and Manfred Schmidt-Schauß

Published in: OASIcs, Volume 46, 2nd International Workshop on Rewriting Techniques for Program Transformations and Evaluation (WPTE 2015)

Abstract
OASIcs, Volume 46, WPTE'15, Complete Volume
Cite as

2nd International Workshop on Rewriting Techniques for Program Transformations and Evaluation (WPTE 2015). Open Access Series in Informatics (OASIcs), Volume 46, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2015)

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@Proceedings{chiba_et_al:OASIcs.WPTE.2015,
  title =	{{OASIcs, Volume 46, WPTE'15, Complete Volume}},
  booktitle =	{2nd International Workshop on Rewriting Techniques for Program Transformations and Evaluation (WPTE 2015)},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-939897-94-1},
  ISSN =	{2190-6807},
  year =	{2015},
  volume =	{46},
  editor =	{Chiba, Yuki and Escobar, Santiago and Nishida, Naoki and Sabel, David and Schmidt-Schau{\ss}, Manfred},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.WPTE.2015},
  URN =		{urn:nbn:de:0030-drops-52644},
  doi =		{10.4230/OASIcs.WPTE.2015},
  annote =	{Keywords: Conference proceedings, Concurrent Programming, Formal Definitions and Theory, Specifying and Verifying and Reasoning about Programs, Semantics of Programming Languages, Mathematical Logic, Grammars and Other Rewriting Systems, Deduction and Theorem Proving}
}
Document
Front Matter
DOI: 10.4230/OASIcs.WPTE.2015.i
Frontmatter, Table of Contents, Preface, Workshop Organization

Authors: Yuki Chiba, Santiago Escobar, Naoki Nishida, David Sabel, and Manfred Schmidt-Schauß

Published in: OASIcs, Volume 46, 2nd International Workshop on Rewriting Techniques for Program Transformations and Evaluation (WPTE 2015)

Abstract
Frontmatter, Table of Contents, Preface, Workshop Organization
Cite as

2nd International Workshop on Rewriting Techniques for Program Transformations and Evaluation (WPTE 2015). Open Access Series in Informatics (OASIcs), Volume 46, pp. i-xvi, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2015)

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@InProceedings{chiba_et_al:OASIcs.WPTE.2015.i,
  author =	{Chiba, Yuki and Escobar, Santiago and Nishida, Naoki and Sabel, David and Schmidt-Schau{\ss}, Manfred},
  title =	{{Frontmatter, Table of Contents, Preface, Workshop Organization}},
  booktitle =	{2nd International Workshop on Rewriting Techniques for Program Transformations and Evaluation (WPTE 2015)},
  pages =	{i--xvi},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-939897-94-1},
  ISSN =	{2190-6807},
  year =	{2015},
  volume =	{46},
  editor =	{Chiba, Yuki and Escobar, Santiago and Nishida, Naoki and Sabel, David and Schmidt-Schau{\ss}, Manfred},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.WPTE.2015.i},
  URN =		{urn:nbn:de:0030-drops-51765},
  doi =		{10.4230/OASIcs.WPTE.2015.i},
  annote =	{Keywords: Frontmatter, Table of Contents, Preface, Workshop Organization}
}
Document
DOI: 10.4230/LIPIcs.RTA.2013.81
Abstract Logical Model Checking of Infinite-State Systems Using Narrowing

Authors: Kyungmin Bae, Santiago Escobar, and José Meseguer

Published in: LIPIcs, Volume 21, 24th International Conference on Rewriting Techniques and Applications (RTA 2013)

Abstract
A concurrent system can be naturally specified as a rewrite theory R = (Sigma, E, R) where states are elements of the initial algebra of terms modulo E and concurrent transitions are axiomatized by the rewrite rules R. Under simple conditions, narrowing with rules R modulo equations E can be used to symbolically represent the system's state space by means of terms with logical variables. We call this symbolic representation a "logical state space" and it can also be used for model checking verification of LTL properties. Since in general such a logical state space can be infinite, we propose several abstraction techniques for obtaining either an over-approximation or an under-approximation of the logical state space: (i) a folding abstraction that collapses patterns into more general ones, (ii) an easy-to-check method to define (bisimilar) equational abstractions, and (iii) an iterated bounded model checking method that can detect if a logical state space within a given bound is complete. We also show that folding abstractions can be faithful for safety LTL properties, so that they do not generate any spurious counterexamples. These abstraction methods can be used in combination and, as we illustrate with examples, can be effective in making the logical state space finite. We have implemented these techniques in the Maude system, providing the first narrowing-based LTL model checker we are aware of.
Cite as

Kyungmin Bae, Santiago Escobar, and José Meseguer. Abstract Logical Model Checking of Infinite-State Systems Using Narrowing. In 24th International Conference on Rewriting Techniques and Applications (RTA 2013). Leibniz International Proceedings in Informatics (LIPIcs), Volume 21, pp. 81-96, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2013)

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@InProceedings{bae_et_al:LIPIcs.RTA.2013.81,
  author =	{Bae, Kyungmin and Escobar, Santiago and Meseguer, Jos\'{e}},
  title =	{{Abstract Logical Model Checking of Infinite-State Systems Using Narrowing}},
  booktitle =	{24th International Conference on Rewriting Techniques and Applications (RTA 2013)},
  pages =	{81--96},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-939897-53-8},
  ISSN =	{1868-8969},
  year =	{2013},
  volume =	{21},
  editor =	{van Raamsdonk, Femke},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.RTA.2013.81},
  URN =		{urn:nbn:de:0030-drops-40554},
  doi =		{10.4230/LIPIcs.RTA.2013.81},
  annote =	{Keywords: model checking, infinite states, rewrite theories, narrowing}
}
Document
DOI: 10.4230/LIPIcs.RTA.2011.31
Variants, Unification, Narrowing, and Symbolic Reachability in Maude 2.6

Authors: Francisco Duran, Steven Eker, Santiago Escobar, Jose Meseguer, and Carolyn Talcott

Published in: LIPIcs, Volume 10, 22nd International Conference on Rewriting Techniques and Applications (RTA'11) (2011)

Abstract
This paper introduces some novel features of Maude 2.6 focusing on the variants of a term. Given an equational theory (Sigma,Ax cup E), the E,Ax-variants of a term t are understood as the set of all pairs consisting of a substitution sigma and the E,Ax-canonical form of t sigma. The equational theory (Ax cup E ) has the finite variant property if there is a finite set of most general variants. We have added support in Maude 2.6 for: (i) order-sorted unification modulo associativity, commutativity and identity, (ii) variant generation, (iii) order-sorted unification modulo finite variant theories, and (iv) narrowing-based symbolic reachability modulo finite variant theories. We also explain how these features have a number of interesting applications in areas such as unification theory, cryptographic protocol verification, business processes, and proofs of termination, confluence and coherence.
Cite as

Francisco Duran, Steven Eker, Santiago Escobar, Jose Meseguer, and Carolyn Talcott. Variants, Unification, Narrowing, and Symbolic Reachability in Maude 2.6. In 22nd International Conference on Rewriting Techniques and Applications (RTA'11). Leibniz International Proceedings in Informatics (LIPIcs), Volume 10, pp. 31-40, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2011)

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@InProceedings{duran_et_al:LIPIcs.RTA.2011.31,
  author =	{Duran, Francisco and Eker, Steven and Escobar, Santiago and Meseguer, Jose and Talcott, Carolyn},
  title =	{{Variants, Unification, Narrowing, and Symbolic Reachability in Maude 2.6}},
  booktitle =	{22nd International Conference on Rewriting Techniques and Applications (RTA'11)},
  pages =	{31--40},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-939897-30-9},
  ISSN =	{1868-8969},
  year =	{2011},
  volume =	{10},
  editor =	{Schmidt-Schauss, Manfred},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.RTA.2011.31},
  URN =		{urn:nbn:de:0030-drops-31211},
  doi =		{10.4230/LIPIcs.RTA.2011.31},
  annote =	{Keywords: Rewriting logic, narrowing, unification, variants}
}
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