2 Search Results for "Botbol, Vincent"


Document
A Dynamic Logic for Symbolic Execution for the Smart Contract Programming Language Michelson

Authors: Barnabas Arvay, Thi Thu Ha Doan, and Peter Thiemann

Published in: LIPIcs, Volume 313, 38th European Conference on Object-Oriented Programming (ECOOP 2024)


Abstract
Verification of smart contracts is an important topic in the context of blockchain technology. We study an approach to verification that is based on symbolic execution. As a formal basis for symbolic execution, we design a dynamic logic for Michelson, the smart contract language of the Tezos blockchain, and prove its soundness in the proof assistant Agda. Towards the soundness proof we formalize the concrete semantics as well as its symbolic counterpart in a unified setting. The logic encompasses single contract runs as well as inter-contract runs chained in a single transaction.

Cite as

Barnabas Arvay, Thi Thu Ha Doan, and Peter Thiemann. A Dynamic Logic for Symbolic Execution for the Smart Contract Programming Language Michelson. In 38th European Conference on Object-Oriented Programming (ECOOP 2024). Leibniz International Proceedings in Informatics (LIPIcs), Volume 313, pp. 3:1-3:26, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2024)


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@InProceedings{arvay_et_al:LIPIcs.ECOOP.2024.3,
  author =	{Arvay, Barnabas and Doan, Thi Thu Ha and Thiemann, Peter},
  title =	{{A Dynamic Logic for Symbolic Execution for the Smart Contract Programming Language Michelson}},
  booktitle =	{38th European Conference on Object-Oriented Programming (ECOOP 2024)},
  pages =	{3:1--3:26},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-341-6},
  ISSN =	{1868-8969},
  year =	{2024},
  volume =	{313},
  editor =	{Aldrich, Jonathan 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.2024.3},
  URN =		{urn:nbn:de:0030-drops-208529},
  doi =		{10.4230/LIPIcs.ECOOP.2024.3},
  annote =	{Keywords: Smart Contract, Blockchain, Formal Verification, Symbolic Execution}
}
Document
Automated Random Testing of Numerical Constrained Types

Authors: Ghiles Ziat, Matthieu Dien, and Vincent Botbol

Published in: LIPIcs, Volume 210, 27th International Conference on Principles and Practice of Constraint Programming (CP 2021)


Abstract
We propose an automated testing framework based on constraint programming techniques. Our framework allows the developer to attach a numerical constraint to a type that restricts its set of possible values. We use this constraint as a partial specification of the program, our goal being to derive property-based tests on such annotated programs. To achieve this, we rely on the user-provided constraints on the types of a program: for each function f present in the program, that returns a constrained type, we generate a test. The tests consists of generating uniformly pseudo-random inputs and checking whether f’s output satisfies the constraint. We are able to automate this process by providing a set of generators for primitive types and generator combinators for composite types. To derive generators for constrained types, we present in this paper a technique that characterizes their inhabitants as the solution set of a numerical CSP. This is done by combining abstract interpretation and constraint solving techniques that allow us to efficiently and uniformly generate solutions of numerical CSP. We validated our approach by implementing it as a syntax extension for the OCaml language.

Cite as

Ghiles Ziat, Matthieu Dien, and Vincent Botbol. Automated Random Testing of Numerical Constrained Types. In 27th International Conference on Principles and Practice of Constraint Programming (CP 2021). Leibniz International Proceedings in Informatics (LIPIcs), Volume 210, pp. 59:1-59:19, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2021)


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@InProceedings{ziat_et_al:LIPIcs.CP.2021.59,
  author =	{Ziat, Ghiles and Dien, Matthieu and Botbol, Vincent},
  title =	{{Automated Random Testing of Numerical Constrained Types}},
  booktitle =	{27th International Conference on Principles and Practice of Constraint Programming (CP 2021)},
  pages =	{59:1--59:19},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-211-2},
  ISSN =	{1868-8969},
  year =	{2021},
  volume =	{210},
  editor =	{Michel, Laurent D.},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.CP.2021.59},
  URN =		{urn:nbn:de:0030-drops-153502},
  doi =		{10.4230/LIPIcs.CP.2021.59},
  annote =	{Keywords: Constraint Programming, Automated Random Testing, Abstract Domains, Constrained Types}
}
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