Search Results

Documents authored by Vojnar, Tomas

Found 2 Possible Name Variants:

Vojnar, Tomáš

Document
Artifact
DOI: 10.4230/DARTS.8.2.11
Low-Level Bi-Abduction (Artifact)

Authors: Lukáš Holík, Petr Peringer, Adam Rogalewicz, Veronika Šoková, Tomáš Vojnar, and Florian Zuleger

Published in: DARTS, Volume 8, Issue 2, Special Issue of the 36th European Conference on Object-Oriented Programming (ECOOP 2022)

Abstract
Broom is a new static analyzer for C written in OCaml. Broom primarily aims at open programs, i.e., fragments of programs, with dynamic pointer-linked data structures - in particular, various kinds of lists - that employ advanced low-level pointer operations. It is based on separation logic and the principle of bi-abductive reasoning. The artifact is a VirtualBox image of a Linux machine with Ubuntu 20.04 operating system. It contains source code and binary of the Broom tool, benchmarks, and scripts for running our and the competing tools we compare to.
Cite as

Lukáš Holík, Petr Peringer, Adam Rogalewicz, Veronika Šoková, Tomáš Vojnar, and Florian Zuleger. Low-Level Bi-Abduction (Artifact). In Special Issue of the 36th European Conference on Object-Oriented Programming (ECOOP 2022). Dagstuhl Artifacts Series (DARTS), Volume 8, Issue 2, pp. 11:1-11:6, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2022)

Copy BibTex To Clipboard

@Article{holik_et_al:DARTS.8.2.11,
  author =	{Hol{\'\i}k, Luk\'{a}\v{s} and Peringer, Petr and Rogalewicz, Adam and \v{S}okov\'{a}, Veronika and Vojnar, Tom\'{a}\v{s} and Zuleger, Florian},
  title =	{{Low-Level Bi-Abduction (Artifact)}},
  pages =	{11:1--11:6},
  journal =	{Dagstuhl Artifacts Series},
  ISSN =	{2509-8195},
  year =	{2022},
  volume =	{8},
  number =	{2},
  editor =	{Hol{\'\i}k, Luk\'{a}\v{s} and Peringer, Petr and Rogalewicz, Adam and \v{S}okov\'{a}, Veronika and Vojnar, Tom\'{a}\v{s} and Zuleger, Florian},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DARTS.8.2.11},
  URN =		{urn:nbn:de:0030-drops-162092},
  doi =		{10.4230/DARTS.8.2.11},
  annote =	{Keywords: programs with dynamic linked data structures, programs with pointers, low-level pointer operations, static analysis, shape analysis, separation logic, bi-abduction}
}
Document
DOI: 10.4230/LIPIcs.ECOOP.2022.19
Low-Level Bi-Abduction

Authors: Lukáš Holík, Petr Peringer, Adam Rogalewicz, Veronika Šoková, Tomáš Vojnar, and Florian Zuleger

Published in: LIPIcs, Volume 222, 36th European Conference on Object-Oriented Programming (ECOOP 2022)

Abstract
The paper proposes a new static analysis designed to handle open programs, i.e., fragments of programs, with dynamic pointer-linked data structures - in particular, various kinds of lists - that employ advanced low-level pointer operations. The goal is to allow such programs be analysed without a need of writing analysis harnesses that would first initialise the structures being handled. The approach builds on a special flavour of separation logic and the approach of bi-abduction. The code of interest is analyzed along the call tree, starting from its leaves, with each function analysed just once without any call context, leading to a set of contracts summarizing the behaviour of the analysed functions. In order to handle the considered programs, methods of abduction existing in the literature are significantly modified and extended in the paper. The proposed approach has been implemented in a tool prototype and successfully evaluated on not large but complex programs.
Cite as

Lukáš Holík, Petr Peringer, Adam Rogalewicz, Veronika Šoková, Tomáš Vojnar, and Florian Zuleger. Low-Level Bi-Abduction. In 36th European Conference on Object-Oriented Programming (ECOOP 2022). Leibniz International Proceedings in Informatics (LIPIcs), Volume 222, pp. 19:1-19:30, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2022)

Copy BibTex To Clipboard

@InProceedings{holik_et_al:LIPIcs.ECOOP.2022.19,
  author =	{Hol{\'\i}k, Luk\'{a}\v{s} and Peringer, Petr and Rogalewicz, Adam and \v{S}okov\'{a}, Veronika and Vojnar, Tom\'{a}\v{s} and Zuleger, Florian},
  title =	{{Low-Level Bi-Abduction}},
  booktitle =	{36th European Conference on Object-Oriented Programming (ECOOP 2022)},
  pages =	{19:1--19:30},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-225-9},
  ISSN =	{1868-8969},
  year =	{2022},
  volume =	{222},
  editor =	{Ali, Karim and Vitek, Jan},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/LIPIcs.ECOOP.2022.19},
  URN =		{urn:nbn:de:0030-drops-162477},
  doi =		{10.4230/LIPIcs.ECOOP.2022.19},
  annote =	{Keywords: programs with dynamic linked data structures, programs with pointers, low-level pointer operations, static analysis, shape analysis, separation logic, bi-abduction}
}
Document
Complete Volume
DOI: 10.4230/OASIcs.MEMICS.2009
OASIcs, Volume 13, MEMICS'09, Complete Volume

Authors: Petr Hlinený, Václav Matyáš, and Tomáš Vojnar

Published in: OASIcs, Volume 13, Annual Doctoral Workshop on Mathematical and Engineering Methods in Computer Science (MEMICS'09) (2009)

Abstract
OASIcs, Volume 13, MEMICS'09, Complete Volume
Cite as

Annual Doctoral Workshop on Mathematical and Engineering Methods in Computer Science (MEMICS'09). Open Access Series in Informatics (OASIcs), Volume 13, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2012)

Copy BibTex To Clipboard

@Proceedings{hlineny_et_al:OASIcs.MEMICS.2009,
  title =	{{OASIcs, Volume 13, MEMICS'09, Complete Volume}},
  booktitle =	{Annual Doctoral Workshop on Mathematical and Engineering Methods in Computer Science (MEMICS'09)},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-939897-15-6},
  ISSN =	{2190-6807},
  year =	{2012},
  volume =	{13},
  editor =	{Hlinen\'{y}, Petr and Maty\'{a}\v{s}, V\'{a}clav and Vojnar, Tom\'{a}\v{s}},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.MEMICS.2009},
  URN =		{urn:nbn:de:0030-drops-35756},
  doi =		{10.4230/OASIcs.MEMICS.2009},
  annote =	{Keywords: Mathematics of Computing, Physical Sciences and Engineering}
}
Document
Complete Volume
DOI: 10.4230/OASIcs.MEMICS.2010
OASIcs, Volume 16, MEMICS'10, Complete Volume

Authors: Ludek Matyska, Michal Kozubek, Tomáš Vojnar, Pavel Zemcík, and David Antos

Published in: OASIcs, Volume 16, Sixth Doctoral Workshop on Mathematical and Engineering Methods in Computer Science (MEMICS'10) -- Selected Papers (2011)

Abstract
OASIcs, Volume 16, MEMICS'10, Complete Volume
Cite as

Sixth Doctoral Workshop on Mathematical and Engineering Methods in Computer Science (MEMICS'10) -- Selected Papers. Open Access Series in Informatics (OASIcs), Volume 16, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2012)

Copy BibTex To Clipboard

@Proceedings{matyska_et_al:OASIcs.MEMICS.2010,
  title =	{{OASIcs, Volume 16, MEMICS'10, Complete Volume}},
  booktitle =	{Sixth Doctoral Workshop on Mathematical and Engineering Methods in Computer Science (MEMICS'10) -- Selected Papers},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-939897-22-4},
  ISSN =	{2190-6807},
  year =	{2012},
  volume =	{16},
  editor =	{Matyska, Ludek and Kozubek, Michal and Vojnar, Tomas and Zemcik, Pavel and Antos, David},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.MEMICS.2010},
  URN =		{urn:nbn:de:0030-drops-35789},
  doi =		{10.4230/OASIcs.MEMICS.2010},
  annote =	{Keywords: Control structures and microprogramming, Input/output and data communications, Integrated circuits, Performance and reliability}
}
Document
Front Matter
DOI: 10.4230/OASIcs.MEMICS.2010.i
Frontmatter, Preface, Table of Contents, Workshop Organization

Authors: Ludek Matyska, Michal Kozubek, Tomas Vojnar, Pavel Zemcik, and David Antos

Published in: OASIcs, Volume 16, Sixth Doctoral Workshop on Mathematical and Engineering Methods in Computer Science (MEMICS'10) -- Selected Papers (2011)

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

Sixth Doctoral Workshop on Mathematical and Engineering Methods in Computer Science (MEMICS'10) -- Selected Papers. Open Access Series in Informatics (OASIcs), Volume 16, pp. i-viii, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2011)

Copy BibTex To Clipboard

@InProceedings{matyska_et_al:OASIcs.MEMICS.2010.i,
  author =	{Matyska, Ludek and Kozubek, Michal and Vojnar, Tomas and Zemcik, Pavel and Antos, David},
  title =	{{Frontmatter, Preface, Table of Contents, Workshop Organization}},
  booktitle =	{Sixth Doctoral Workshop on Mathematical and Engineering Methods in Computer Science (MEMICS'10) -- Selected Papers},
  pages =	{i--viii},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-939897-22-4},
  ISSN =	{2190-6807},
  year =	{2011},
  volume =	{16},
  editor =	{Matyska, Ludek and Kozubek, Michal and Vojnar, Tomas and Zemcik, Pavel and Antos, David},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.MEMICS.2010.i},
  URN =		{urn:nbn:de:0030-drops-30574},
  doi =		{10.4230/OASIcs.MEMICS.2010.i},
  annote =	{Keywords: Frontmatter, Preface, Table of Contents, Workshop Organization}
}
Document
DOI: 10.4230/OASIcs.MEMICS.2010.85
Hijacking the Linux Kernel

Authors: Boris Prochazka, Tomas Vojnar, and Martin Drahansky

Published in: OASIcs, Volume 16, Sixth Doctoral Workshop on Mathematical and Engineering Methods in Computer Science (MEMICS'10) -- Selected Papers (2011)

Abstract
In this paper, a new method of hijacking the Linux kernel is presented. It is based on analysing the Linux system call handler, where a proper set of instructions is subsequently replaced by a jump to a different function. The ability to change the execution flow in the middle of an existing function represents a unique approach in Linux kernel hacking. The attack is applicable to all kernels from the 2.6 series on the Intel architecture. Due to this, rootkits based on this kind of technique represent a high risk for Linux administrators.
Cite as

Boris Prochazka, Tomas Vojnar, and Martin Drahansky. Hijacking the Linux Kernel. In Sixth Doctoral Workshop on Mathematical and Engineering Methods in Computer Science (MEMICS'10) -- Selected Papers. Open Access Series in Informatics (OASIcs), Volume 16, pp. 85-92, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2011)

Copy BibTex To Clipboard

@InProceedings{prochazka_et_al:OASIcs.MEMICS.2010.85,
  author =	{Prochazka, Boris and Vojnar, Tomas and Drahansky, Martin},
  title =	{{Hijacking the Linux Kernel}},
  booktitle =	{Sixth Doctoral Workshop on Mathematical and Engineering Methods in Computer Science (MEMICS'10) -- Selected Papers},
  pages =	{85--92},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-939897-22-4},
  ISSN =	{2190-6807},
  year =	{2011},
  volume =	{16},
  editor =	{Matyska, Ludek and Kozubek, Michal and Vojnar, Tomas and Zemcik, Pavel and Antos, David},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.MEMICS.2010.85},
  URN =		{urn:nbn:de:0030-drops-30635},
  doi =		{10.4230/OASIcs.MEMICS.2010.85},
  annote =	{Keywords: Linux kernel hacking, rootkit}
}
Document
Front Matter
DOI: 10.4230/DROPS.MEMICS.2009.2342
Preface -- Annual Doctoral Workshop on Mathematical and Engineering Methods in Computer Science (MEMICS'09)

Authors: Petr Hlinený, Václav Matyáš, and Tomáš Vojnar

Published in: OASIcs, Volume 13, Annual Doctoral Workshop on Mathematical and Engineering Methods in Computer Science (MEMICS'09) (2009)

Abstract
The 2009 edition of the International Doctoral Workshop on Mathematical and Engineering Methods in Computer Science (MEMICS'09) is the fifth in a~row of three-day workshops organized in South Moravia by Faculty of Information Technology of Brno University of Technology and Faculty of Informatics of Masaryk University. MEMICS'09 was held in Znojmo, Czech Republic, on November 13--15, 2009.
Cite as

Annual Doctoral Workshop on Mathematical and Engineering Methods in Computer Science (MEMICS'09). Open Access Series in Informatics (OASIcs), Volume 13, pp. i-vi, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2009)

Copy BibTex To Clipboard

@InProceedings{hlineny_et_al:OASIcs:2009:DROPS.MEMICS.2009.2342,
  author =	{Hlinen\'{y}, Petr and Maty\'{a}\v{s}, V\'{a}clav and Vojnar, Tom\'{a}\v{s}},
  title =	{{Preface -- Annual Doctoral Workshop on Mathematical and Engineering Methods in Computer Science (MEMICS'09)}},
  booktitle =	{Annual Doctoral Workshop on Mathematical and Engineering Methods in Computer Science (MEMICS'09)},
  pages =	{i--vi},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-939897-15-6},
  ISSN =	{2190-6807},
  year =	{2009},
  volume =	{13},
  editor =	{Hlinen\'{y}, Petr and Maty\'{a}\v{s}, V\'{a}clav and Vojnar, Tom\'{a}\v{s}},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DROPS.MEMICS.2009.2342},
  URN =		{urn:nbn:de:0030-drops-23425},
  doi =		{10.4230/DROPS.MEMICS.2009.2342},
  annote =	{Keywords: MEMICS 2009}
}
Document
DOI: 10.4230/LIPIcs.FSTTCS.2009.2302
Mediating for Reduction (on Minimizing Alternating Büchi Automata)

Authors: Parosh A. Abdulla, Yu-Fang Chen, Lukas Holik, and Tomas Vojnar

Published in: LIPIcs, Volume 4, IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science (2009)

Abstract
We propose a new approach for minimizing alternating B\"uchi automata (ABA). The approach is based on the so called \emph{mediated equivalence} on states of ABA, which is the maximal equivalence contained in the so called \emph{mediated preorder}. Two states $p$ and $q$ can be related by the mediated preorder if there is a~\emph{mediator} (mediating state) which forward simulates $p$ and backward simulates $q$. Under some further conditions, letting a computation on some word jump from $q$ to $p$ (due to they get collapsed) preserves the language as the automaton can anyway already accept the word without jumps by runs through the mediator. We further show how the mediated equivalence can be computed efficiently. Finally, we show that, compared to the standard forward simulation equivalence, the mediated equivalence can yield much more significant reductions when applied within the process of complementing B\"uchi automata where ABA are used as an intermediate model.
Cite as

Parosh A. Abdulla, Yu-Fang Chen, Lukas Holik, and Tomas Vojnar. Mediating for Reduction (on Minimizing Alternating Büchi Automata). In IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science. Leibniz International Proceedings in Informatics (LIPIcs), Volume 4, pp. 1-12, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2009)

Copy BibTex To Clipboard

@InProceedings{abdulla_et_al:LIPIcs.FSTTCS.2009.2302,
  author =	{Abdulla, Parosh A. and Chen, Yu-Fang and Holik, Lukas and Vojnar, Tomas},
  title =	{{Mediating for Reduction (on Minimizing Alternating B\"{u}chi Automata)}},
  booktitle =	{IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science},
  pages =	{1--12},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-939897-13-2},
  ISSN =	{1868-8969},
  year =	{2009},
  volume =	{4},
  editor =	{Kannan, Ravi and Narayan Kumar, K.},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/LIPIcs.FSTTCS.2009.2302},
  URN =		{urn:nbn:de:0030-drops-23027},
  doi =		{10.4230/LIPIcs.FSTTCS.2009.2302},
  annote =	{Keywords: Alternating Automata, Buchi Automata, Automata Minimization, Buchi Automata Complementation, Simulation Preorder, forward and backward simulation, mediated equivalence}
}

Vojnar, Tomas

Document
Artifact
DOI: 10.4230/DARTS.8.2.11
Low-Level Bi-Abduction (Artifact)

Authors: Lukáš Holík, Petr Peringer, Adam Rogalewicz, Veronika Šoková, Tomáš Vojnar, and Florian Zuleger

Published in: DARTS, Volume 8, Issue 2, Special Issue of the 36th European Conference on Object-Oriented Programming (ECOOP 2022)

Abstract
Broom is a new static analyzer for C written in OCaml. Broom primarily aims at open programs, i.e., fragments of programs, with dynamic pointer-linked data structures - in particular, various kinds of lists - that employ advanced low-level pointer operations. It is based on separation logic and the principle of bi-abductive reasoning. The artifact is a VirtualBox image of a Linux machine with Ubuntu 20.04 operating system. It contains source code and binary of the Broom tool, benchmarks, and scripts for running our and the competing tools we compare to.
Cite as

Lukáš Holík, Petr Peringer, Adam Rogalewicz, Veronika Šoková, Tomáš Vojnar, and Florian Zuleger. Low-Level Bi-Abduction (Artifact). In Special Issue of the 36th European Conference on Object-Oriented Programming (ECOOP 2022). Dagstuhl Artifacts Series (DARTS), Volume 8, Issue 2, pp. 11:1-11:6, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2022)

Copy BibTex To Clipboard

@Article{holik_et_al:DARTS.8.2.11,
  author =	{Hol{\'\i}k, Luk\'{a}\v{s} and Peringer, Petr and Rogalewicz, Adam and \v{S}okov\'{a}, Veronika and Vojnar, Tom\'{a}\v{s} and Zuleger, Florian},
  title =	{{Low-Level Bi-Abduction (Artifact)}},
  pages =	{11:1--11:6},
  journal =	{Dagstuhl Artifacts Series},
  ISSN =	{2509-8195},
  year =	{2022},
  volume =	{8},
  number =	{2},
  editor =	{Hol{\'\i}k, Luk\'{a}\v{s} and Peringer, Petr and Rogalewicz, Adam and \v{S}okov\'{a}, Veronika and Vojnar, Tom\'{a}\v{s} and Zuleger, Florian},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DARTS.8.2.11},
  URN =		{urn:nbn:de:0030-drops-162092},
  doi =		{10.4230/DARTS.8.2.11},
  annote =	{Keywords: programs with dynamic linked data structures, programs with pointers, low-level pointer operations, static analysis, shape analysis, separation logic, bi-abduction}
}
Document
DOI: 10.4230/LIPIcs.ECOOP.2022.19
Low-Level Bi-Abduction

Authors: Lukáš Holík, Petr Peringer, Adam Rogalewicz, Veronika Šoková, Tomáš Vojnar, and Florian Zuleger

Published in: LIPIcs, Volume 222, 36th European Conference on Object-Oriented Programming (ECOOP 2022)

Abstract
The paper proposes a new static analysis designed to handle open programs, i.e., fragments of programs, with dynamic pointer-linked data structures - in particular, various kinds of lists - that employ advanced low-level pointer operations. The goal is to allow such programs be analysed without a need of writing analysis harnesses that would first initialise the structures being handled. The approach builds on a special flavour of separation logic and the approach of bi-abduction. The code of interest is analyzed along the call tree, starting from its leaves, with each function analysed just once without any call context, leading to a set of contracts summarizing the behaviour of the analysed functions. In order to handle the considered programs, methods of abduction existing in the literature are significantly modified and extended in the paper. The proposed approach has been implemented in a tool prototype and successfully evaluated on not large but complex programs.
Cite as

Lukáš Holík, Petr Peringer, Adam Rogalewicz, Veronika Šoková, Tomáš Vojnar, and Florian Zuleger. Low-Level Bi-Abduction. In 36th European Conference on Object-Oriented Programming (ECOOP 2022). Leibniz International Proceedings in Informatics (LIPIcs), Volume 222, pp. 19:1-19:30, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2022)

Copy BibTex To Clipboard

@InProceedings{holik_et_al:LIPIcs.ECOOP.2022.19,
  author =	{Hol{\'\i}k, Luk\'{a}\v{s} and Peringer, Petr and Rogalewicz, Adam and \v{S}okov\'{a}, Veronika and Vojnar, Tom\'{a}\v{s} and Zuleger, Florian},
  title =	{{Low-Level Bi-Abduction}},
  booktitle =	{36th European Conference on Object-Oriented Programming (ECOOP 2022)},
  pages =	{19:1--19:30},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-225-9},
  ISSN =	{1868-8969},
  year =	{2022},
  volume =	{222},
  editor =	{Ali, Karim and Vitek, Jan},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/LIPIcs.ECOOP.2022.19},
  URN =		{urn:nbn:de:0030-drops-162477},
  doi =		{10.4230/LIPIcs.ECOOP.2022.19},
  annote =	{Keywords: programs with dynamic linked data structures, programs with pointers, low-level pointer operations, static analysis, shape analysis, separation logic, bi-abduction}
}
Document
Complete Volume
DOI: 10.4230/OASIcs.MEMICS.2009
OASIcs, Volume 13, MEMICS'09, Complete Volume

Authors: Petr Hlinený, Václav Matyáš, and Tomáš Vojnar

Published in: OASIcs, Volume 13, Annual Doctoral Workshop on Mathematical and Engineering Methods in Computer Science (MEMICS'09) (2009)

Abstract
OASIcs, Volume 13, MEMICS'09, Complete Volume
Cite as

Annual Doctoral Workshop on Mathematical and Engineering Methods in Computer Science (MEMICS'09). Open Access Series in Informatics (OASIcs), Volume 13, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2012)

Copy BibTex To Clipboard

@Proceedings{hlineny_et_al:OASIcs.MEMICS.2009,
  title =	{{OASIcs, Volume 13, MEMICS'09, Complete Volume}},
  booktitle =	{Annual Doctoral Workshop on Mathematical and Engineering Methods in Computer Science (MEMICS'09)},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-939897-15-6},
  ISSN =	{2190-6807},
  year =	{2012},
  volume =	{13},
  editor =	{Hlinen\'{y}, Petr and Maty\'{a}\v{s}, V\'{a}clav and Vojnar, Tom\'{a}\v{s}},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.MEMICS.2009},
  URN =		{urn:nbn:de:0030-drops-35756},
  doi =		{10.4230/OASIcs.MEMICS.2009},
  annote =	{Keywords: Mathematics of Computing, Physical Sciences and Engineering}
}
Document
Complete Volume
DOI: 10.4230/OASIcs.MEMICS.2010
OASIcs, Volume 16, MEMICS'10, Complete Volume

Authors: Ludek Matyska, Michal Kozubek, Tomáš Vojnar, Pavel Zemcík, and David Antos

Published in: OASIcs, Volume 16, Sixth Doctoral Workshop on Mathematical and Engineering Methods in Computer Science (MEMICS'10) -- Selected Papers (2011)

Abstract
OASIcs, Volume 16, MEMICS'10, Complete Volume
Cite as

Sixth Doctoral Workshop on Mathematical and Engineering Methods in Computer Science (MEMICS'10) -- Selected Papers. Open Access Series in Informatics (OASIcs), Volume 16, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2012)

Copy BibTex To Clipboard

@Proceedings{matyska_et_al:OASIcs.MEMICS.2010,
  title =	{{OASIcs, Volume 16, MEMICS'10, Complete Volume}},
  booktitle =	{Sixth Doctoral Workshop on Mathematical and Engineering Methods in Computer Science (MEMICS'10) -- Selected Papers},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-939897-22-4},
  ISSN =	{2190-6807},
  year =	{2012},
  volume =	{16},
  editor =	{Matyska, Ludek and Kozubek, Michal and Vojnar, Tomas and Zemcik, Pavel and Antos, David},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.MEMICS.2010},
  URN =		{urn:nbn:de:0030-drops-35789},
  doi =		{10.4230/OASIcs.MEMICS.2010},
  annote =	{Keywords: Control structures and microprogramming, Input/output and data communications, Integrated circuits, Performance and reliability}
}
Document
Front Matter
DOI: 10.4230/OASIcs.MEMICS.2010.i
Frontmatter, Preface, Table of Contents, Workshop Organization

Authors: Ludek Matyska, Michal Kozubek, Tomas Vojnar, Pavel Zemcik, and David Antos

Published in: OASIcs, Volume 16, Sixth Doctoral Workshop on Mathematical and Engineering Methods in Computer Science (MEMICS'10) -- Selected Papers (2011)

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

Sixth Doctoral Workshop on Mathematical and Engineering Methods in Computer Science (MEMICS'10) -- Selected Papers. Open Access Series in Informatics (OASIcs), Volume 16, pp. i-viii, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2011)

Copy BibTex To Clipboard

@InProceedings{matyska_et_al:OASIcs.MEMICS.2010.i,
  author =	{Matyska, Ludek and Kozubek, Michal and Vojnar, Tomas and Zemcik, Pavel and Antos, David},
  title =	{{Frontmatter, Preface, Table of Contents, Workshop Organization}},
  booktitle =	{Sixth Doctoral Workshop on Mathematical and Engineering Methods in Computer Science (MEMICS'10) -- Selected Papers},
  pages =	{i--viii},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-939897-22-4},
  ISSN =	{2190-6807},
  year =	{2011},
  volume =	{16},
  editor =	{Matyska, Ludek and Kozubek, Michal and Vojnar, Tomas and Zemcik, Pavel and Antos, David},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.MEMICS.2010.i},
  URN =		{urn:nbn:de:0030-drops-30574},
  doi =		{10.4230/OASIcs.MEMICS.2010.i},
  annote =	{Keywords: Frontmatter, Preface, Table of Contents, Workshop Organization}
}
Document
DOI: 10.4230/OASIcs.MEMICS.2010.85
Hijacking the Linux Kernel

Authors: Boris Prochazka, Tomas Vojnar, and Martin Drahansky

Published in: OASIcs, Volume 16, Sixth Doctoral Workshop on Mathematical and Engineering Methods in Computer Science (MEMICS'10) -- Selected Papers (2011)

Abstract
In this paper, a new method of hijacking the Linux kernel is presented. It is based on analysing the Linux system call handler, where a proper set of instructions is subsequently replaced by a jump to a different function. The ability to change the execution flow in the middle of an existing function represents a unique approach in Linux kernel hacking. The attack is applicable to all kernels from the 2.6 series on the Intel architecture. Due to this, rootkits based on this kind of technique represent a high risk for Linux administrators.
Cite as

Boris Prochazka, Tomas Vojnar, and Martin Drahansky. Hijacking the Linux Kernel. In Sixth Doctoral Workshop on Mathematical and Engineering Methods in Computer Science (MEMICS'10) -- Selected Papers. Open Access Series in Informatics (OASIcs), Volume 16, pp. 85-92, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2011)

Copy BibTex To Clipboard

@InProceedings{prochazka_et_al:OASIcs.MEMICS.2010.85,
  author =	{Prochazka, Boris and Vojnar, Tomas and Drahansky, Martin},
  title =	{{Hijacking the Linux Kernel}},
  booktitle =	{Sixth Doctoral Workshop on Mathematical and Engineering Methods in Computer Science (MEMICS'10) -- Selected Papers},
  pages =	{85--92},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-939897-22-4},
  ISSN =	{2190-6807},
  year =	{2011},
  volume =	{16},
  editor =	{Matyska, Ludek and Kozubek, Michal and Vojnar, Tomas and Zemcik, Pavel and Antos, David},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.MEMICS.2010.85},
  URN =		{urn:nbn:de:0030-drops-30635},
  doi =		{10.4230/OASIcs.MEMICS.2010.85},
  annote =	{Keywords: Linux kernel hacking, rootkit}
}
Document
Front Matter
DOI: 10.4230/DROPS.MEMICS.2009.2342
Preface -- Annual Doctoral Workshop on Mathematical and Engineering Methods in Computer Science (MEMICS'09)

Authors: Petr Hlinený, Václav Matyáš, and Tomáš Vojnar

Published in: OASIcs, Volume 13, Annual Doctoral Workshop on Mathematical and Engineering Methods in Computer Science (MEMICS'09) (2009)

Abstract
The 2009 edition of the International Doctoral Workshop on Mathematical and Engineering Methods in Computer Science (MEMICS'09) is the fifth in a~row of three-day workshops organized in South Moravia by Faculty of Information Technology of Brno University of Technology and Faculty of Informatics of Masaryk University. MEMICS'09 was held in Znojmo, Czech Republic, on November 13--15, 2009.
Cite as

Annual Doctoral Workshop on Mathematical and Engineering Methods in Computer Science (MEMICS'09). Open Access Series in Informatics (OASIcs), Volume 13, pp. i-vi, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2009)

Copy BibTex To Clipboard

@InProceedings{hlineny_et_al:OASIcs:2009:DROPS.MEMICS.2009.2342,
  author =	{Hlinen\'{y}, Petr and Maty\'{a}\v{s}, V\'{a}clav and Vojnar, Tom\'{a}\v{s}},
  title =	{{Preface -- Annual Doctoral Workshop on Mathematical and Engineering Methods in Computer Science (MEMICS'09)}},
  booktitle =	{Annual Doctoral Workshop on Mathematical and Engineering Methods in Computer Science (MEMICS'09)},
  pages =	{i--vi},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-939897-15-6},
  ISSN =	{2190-6807},
  year =	{2009},
  volume =	{13},
  editor =	{Hlinen\'{y}, Petr and Maty\'{a}\v{s}, V\'{a}clav and Vojnar, Tom\'{a}\v{s}},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DROPS.MEMICS.2009.2342},
  URN =		{urn:nbn:de:0030-drops-23425},
  doi =		{10.4230/DROPS.MEMICS.2009.2342},
  annote =	{Keywords: MEMICS 2009}
}
Document
DOI: 10.4230/LIPIcs.FSTTCS.2009.2302
Mediating for Reduction (on Minimizing Alternating Büchi Automata)

Authors: Parosh A. Abdulla, Yu-Fang Chen, Lukas Holik, and Tomas Vojnar

Published in: LIPIcs, Volume 4, IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science (2009)

Abstract
We propose a new approach for minimizing alternating B\"uchi automata (ABA). The approach is based on the so called \emph{mediated equivalence} on states of ABA, which is the maximal equivalence contained in the so called \emph{mediated preorder}. Two states $p$ and $q$ can be related by the mediated preorder if there is a~\emph{mediator} (mediating state) which forward simulates $p$ and backward simulates $q$. Under some further conditions, letting a computation on some word jump from $q$ to $p$ (due to they get collapsed) preserves the language as the automaton can anyway already accept the word without jumps by runs through the mediator. We further show how the mediated equivalence can be computed efficiently. Finally, we show that, compared to the standard forward simulation equivalence, the mediated equivalence can yield much more significant reductions when applied within the process of complementing B\"uchi automata where ABA are used as an intermediate model.
Cite as

Parosh A. Abdulla, Yu-Fang Chen, Lukas Holik, and Tomas Vojnar. Mediating for Reduction (on Minimizing Alternating Büchi Automata). In IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science. Leibniz International Proceedings in Informatics (LIPIcs), Volume 4, pp. 1-12, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2009)

Copy BibTex To Clipboard

@InProceedings{abdulla_et_al:LIPIcs.FSTTCS.2009.2302,
  author =	{Abdulla, Parosh A. and Chen, Yu-Fang and Holik, Lukas and Vojnar, Tomas},
  title =	{{Mediating for Reduction (on Minimizing Alternating B\"{u}chi Automata)}},
  booktitle =	{IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science},
  pages =	{1--12},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-939897-13-2},
  ISSN =	{1868-8969},
  year =	{2009},
  volume =	{4},
  editor =	{Kannan, Ravi and Narayan Kumar, K.},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/LIPIcs.FSTTCS.2009.2302},
  URN =		{urn:nbn:de:0030-drops-23027},
  doi =		{10.4230/LIPIcs.FSTTCS.2009.2302},
  annote =	{Keywords: Alternating Automata, Buchi Automata, Automata Minimization, Buchi Automata Complementation, Simulation Preorder, forward and backward simulation, mediated equivalence}
}
Questions / Remarks / Feedback
X

Feedback for Dagstuhl Publishing


Thanks for your feedback!

Feedback submitted

Could not send message

Please try again later or send an E-mail
© 2023-2024 Schloss Dagstuhl – LZI GmbH Imprint Privacy Contact