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Documents authored by Seshia, Sanjit A.

Document
Experience Paper
DOI: 10.4230/LIPIcs.ECOOP.2023.38
Building Code Transpilers for Domain-Specific Languages Using Program Synthesis (Experience Paper)

Authors: Sahil Bhatia, Sumer Kohli, Sanjit A. Seshia, and Alvin Cheung

Published in: LIPIcs, Volume 263, 37th European Conference on Object-Oriented Programming (ECOOP 2023)

Abstract
Domain-specific languages (DSLs) are prevalent across many application domains. Such languages let developers easily express computations using high-level abstractions that result in performant implementations. To leverage DSLs, however, application developers need to master the DSL’s syntax and manually rewrite existing code. Compilers can aid in this effort, but part of building a compiler requires transpiling code from the source code to the target DSL. Such transpilation is typically done via pattern-matching rules on the source code. Sadly, developing such rules is often a painstaking and error-prone process. In this paper, we describe our experience in using program synthesis to build code transpilers. To do so, we developed MetaLift, a new framework for building transpilers that transform general-purpose code into DSLs using program synthesis. To use MetaLift, transpiler developers first define the target DSL’s semantics using MetaLift’s specification language, and specify the search space for each input code fragment to be transpiled using MetaLift’s API. MetaLift then leverages program synthesizers and theorem provers to automatically find transpilations expressed in the target DSL that is provably semantic equivalent to the input code. We have used MetaLift to build three DSL transpilers targeting different programming models and application domains. Our results show that the MetaLift-based compilers can translate many benchmarks used in prior work created by specialized implementations, but can be built using orders-of-magnitude fewer lines of code as compared to prior work.
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Sahil Bhatia, Sumer Kohli, Sanjit A. Seshia, and Alvin Cheung. Building Code Transpilers for Domain-Specific Languages Using Program Synthesis (Experience Paper). In 37th European Conference on Object-Oriented Programming (ECOOP 2023). Leibniz International Proceedings in Informatics (LIPIcs), Volume 263, pp. 38:1-38:30, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2023)

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@InProceedings{bhatia_et_al:LIPIcs.ECOOP.2023.38,
  author =	{Bhatia, Sahil and Kohli, Sumer and Seshia, Sanjit A. and Cheung, Alvin},
  title =	{{Building Code Transpilers for Domain-Specific Languages Using Program Synthesis}},
  booktitle =	{37th European Conference on Object-Oriented Programming (ECOOP 2023)},
  pages =	{38:1--38:30},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-281-5},
  ISSN =	{1868-8969},
  year =	{2023},
  volume =	{263},
  editor =	{Ali, Karim and Salvaneschi, Guido},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.ECOOP.2023.38},
  URN =		{urn:nbn:de:0030-drops-182316},
  doi =		{10.4230/LIPIcs.ECOOP.2023.38},
  annote =	{Keywords: Program Synthesis, Code Transpilation, DSLs, Verification}
}
Document
Invited Talk
DOI: 10.4230/LIPIcs.FSTTCS.2020.5
Algorithmic Improvisation for Dependable Intelligent Autonomy (Invited Talk)

Authors: Sanjit A. Seshia

Published in: LIPIcs, Volume 182, 40th IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science (FSTTCS 2020)

Abstract
Algorithmic Improvisation, also called control improvisation or controlled improvisation, is a new framework for automatically synthesizing systems with specified random but controllable behavior. In this talk, I will present the theory of algorithmic improvisation and show how it can be used in a wide variety of applications where randomness can provide variety, robustness, or unpredictability while guaranteeing safety or other properties. Applications demonstrated to date include robotic surveillance, software fuzz testing, music improvisation, human modeling, generating test cases for simulating cyber-physical systems, and generation of synthetic data sets to train and test machine learning algorithms. In this talk, I will particularly focus on applications to the design of intelligent autonomous systems, presenting work on randomized planning for robotics and a domain-specific probabilistic programming language for the design and analysis of learning-based autonomous systems.
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Sanjit A. Seshia. Algorithmic Improvisation for Dependable Intelligent Autonomy (Invited Talk). In 40th IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science (FSTTCS 2020). Leibniz International Proceedings in Informatics (LIPIcs), Volume 182, pp. 5:1-5:3, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2020)

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@InProceedings{seshia:LIPIcs.FSTTCS.2020.5,
  author =	{Seshia, Sanjit A.},
  title =	{{Algorithmic Improvisation for Dependable Intelligent Autonomy}},
  booktitle =	{40th IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science (FSTTCS 2020)},
  pages =	{5:1--5:3},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-174-0},
  ISSN =	{1868-8969},
  year =	{2020},
  volume =	{182},
  editor =	{Saxena, Nitin and Simon, Sunil},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.FSTTCS.2020.5},
  URN =		{urn:nbn:de:0030-drops-132465},
  doi =		{10.4230/LIPIcs.FSTTCS.2020.5},
  annote =	{Keywords: Formal methods, synthesis, verification, randomized algorithms, formal specification, testing, machine learning, synthetic data generation, planning}
}
Document
DOI: 10.4230/DagRep.7.8.55
Machine Learning and Formal Methods (Dagstuhl Seminar 17351)

Authors: Sanjit A. Seshia, Xianjin (Jerry) Zhu, Andreas Krause, and Susmit Jha

Published in: Dagstuhl Reports, Volume 7, Issue 8 (2018)

Abstract
This report documents the program and the outcomes of Dagstuhl Seminar 17351 "Machine Learning and Formal Methods". The seminar brought together practitioners and reseachers in machine learning and related areas (such as robotics) with those working in formal methods and related areas (such as programming languages and control theory). The meeting highlighted the connections between the two disciplines, and created new links between the two research communities.
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Sanjit A. Seshia, Xianjin (Jerry) Zhu, Andreas Krause, and Susmit Jha. Machine Learning and Formal Methods (Dagstuhl Seminar 17351). In Dagstuhl Reports, Volume 7, Issue 8, pp. 55-73, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2018)

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@Article{seshia_et_al:DagRep.7.8.55,
  author =	{Seshia, Sanjit A. and Zhu, Xianjin (Jerry) and Krause, Andreas and Jha, Susmit},
  title =	{{Machine Learning and Formal Methods (Dagstuhl Seminar 17351)}},
  pages =	{55--73},
  journal =	{Dagstuhl Reports},
  ISSN =	{2192-5283},
  year =	{2018},
  volume =	{7},
  number =	{8},
  editor =	{Seshia, Sanjit A. and Zhu, Xianjin (Jerry) and Krause, Andreas and Jha, Susmit},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DagRep.7.8.55},
  URN =		{urn:nbn:de:0030-drops-84302},
  doi =		{10.4230/DagRep.7.8.55},
  annote =	{Keywords: Formal Methods, Machine Learning}
}
Document
DOI: 10.4230/LIPIcs.FSTTCS.2015.463
Control Improvisation

Authors: Daniel J. Fremont, Alexandre Donzé, Sanjit A. Seshia, and David Wessel

Published in: LIPIcs, Volume 45, 35th IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science (FSTTCS 2015)

Abstract
We formalize and analyze a new automata-theoretic problem termed control improvisation. Given an automaton, the problem is to produce an improviser, a probabilistic algorithm that randomly generates words in its language, subject to two additional constraints: the satisfaction of an admissibility predicate, and the exhibition of a specified amount of randomness. Control improvisation has multiple applications, including, for example, generating musical improvisations that satisfy rhythmic and melodic constraints, where admissibility is determined by some bounded divergence from a reference melody. We analyze the complexity of the control improvisation problem, giving cases where it is efficiently solvable and cases where it is #P-hard or undecidable. We also show how symbolic techniques based on Boolean satisfiability (SAT) solvers can be used to approximately solve some of the intractable cases.
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Daniel J. Fremont, Alexandre Donzé, Sanjit A. Seshia, and David Wessel. Control Improvisation. In 35th IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science (FSTTCS 2015). Leibniz International Proceedings in Informatics (LIPIcs), Volume 45, pp. 463-474, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2015)

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@InProceedings{fremont_et_al:LIPIcs.FSTTCS.2015.463,
  author =	{Fremont, Daniel J. and Donz\'{e}, Alexandre and Seshia, Sanjit A. and Wessel, David},
  title =	{{Control Improvisation}},
  booktitle =	{35th IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science (FSTTCS 2015)},
  pages =	{463--474},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-939897-97-2},
  ISSN =	{1868-8969},
  year =	{2015},
  volume =	{45},
  editor =	{Harsha, Prahladh and Ramalingam, G.},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.FSTTCS.2015.463},
  URN =		{urn:nbn:de:0030-drops-56596},
  doi =		{10.4230/LIPIcs.FSTTCS.2015.463},
  annote =	{Keywords: finite automata, random sampling, Boolean satisfiability, testing, computational music, control theory}
}
Document
DOI: 10.4230/DagRep.4.8.89
Decision Procedures and Abstract Interpretation (Dagstuhl Seminar 14351)

Authors: Daniel Kroening, Thomas W. Reps, Sanjit A. Seshia, and Aditya Thakur

Published in: Dagstuhl Reports, Volume 4, Issue 8 (2015)

Abstract
This report documents the program and the outcomes of Dagstuhl Seminar 14351 "Decision Procedures and Abstract Interpretation". The seminar brought together practitioners and reseachers in abstract interpretation and decision procedures. The meeting highlighted the connections between the two disciplines, and created new links between the two research communities. Joint activities were also conducted with the participants of Dagstuhl Seminar 14352 "Next Generation Static Software Analysis Tools", which was held concurrently.
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Daniel Kroening, Thomas W. Reps, Sanjit A. Seshia, and Aditya Thakur. Decision Procedures and Abstract Interpretation (Dagstuhl Seminar 14351). In Dagstuhl Reports, Volume 4, Issue 8, pp. 89-106, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2014)

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@Article{kroening_et_al:DagRep.4.8.89,
  author =	{Kroening, Daniel and Reps, Thomas W. and Seshia, Sanjit A. and Thakur, Aditya},
  title =	{{Decision Procedures and Abstract Interpretation (Dagstuhl Seminar 14351)}},
  pages =	{89--106},
  journal =	{Dagstuhl Reports},
  ISSN =	{2192-5283},
  year =	{2014},
  volume =	{4},
  number =	{8},
  editor =	{Kroening, Daniel and Reps, Thomas W. and Seshia, Sanjit A. and Thakur, Aditya},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DagRep.4.8.89},
  URN =		{urn:nbn:de:0030-drops-48007},
  doi =		{10.4230/DagRep.4.8.89},
  annote =	{Keywords: Program analysis, Abstract interpretation, Abstract domain, Fixed-point finding, Satisfiability checking, Satisfiability modulo theories, Decision pro}
}
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