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Advanced Grammar-Based Fuzzing

Advanced Grammar-Based Fuzzing

引用

2022 Ivannikov Memorial Workshop, IVMEM 2022

作者： Sargsyan, Sevak Hakobyan, Jivan Mehrabyan, Matevos Mkoyan, Ruslan Sahakyan, Vardan Melkonyan, Vahagn Arutunian, Mariam Fahradyan, Arman Avetisyan, Arutyun Russian-Armenian University Center of Advanced Software Technologies Yerevan Armenia Programming of the RAS Ivannikov Institute for System Moscow Russia

ISBN: (数字)9781665492973

ISBN: (纸本)9781665492973

This article presents novel method for efficient fuzzing of programs accepting complex structured data. It generates input data based on formal grammar description. Data generator is periodically autoconfigured based on target programs code coverage. It means that the type of generated programs is dynamically changed to increase code coverage. Data generator uses descriptions of BNF (Backus-Naur Form) rules in ANTLR (ANother Tool for Language Recognition) platform. More than 250 languages and data formats are supported. Every rule of grammar is designed as universal pushdown automata, which allows automatically generate BNF compatible data by traversing automata. We added weights for each transition of automata to provide priority of highly efficient paths (sequence of transitions). These weights are automatically changed by fuzzing engine, which provides data generator adaptation based on the coverage of the target programs. According to experimental results, we were able to increase code coverage significantly for several widely used programs including compilers. © 2022 IEEE.

关键词： Automata theory

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Implementation of regularized equations for the disk pump simulation problem in OpenFOAM

Implementation of regularized equations for the disk pump si...

引用

2019 Ivannikov Ispras Open Conference, ISPras 2019

作者： Stenina, Tatiana Elizarova, Tatiana Ryazanov, Daniil Ryabinkin, Eugene Ivannikov Institute for System Programming of the RAS Russia Lomonosov Moscow State University Russia Keldysh Institute of Applied Mathematics of the RAS Russia Moscow Institute of Physics and Technology Russia NRC Kurchatov Institute Russia

ISBN: (纸本)9781728160559

Creating an effective pump that is able to maintain blood circulation in a heart with appropriate medical indications is undoubtedly a crucial task. First versions of such devices are currently being created and tested on the basis of IFPM SB ras, Novosibirsk. This work is devoted to a pump numerical simulations in order to optimize parameters. Equations of viscous incompressible fluid flow are used for this purpose. Implemented numerical algorithm is based on the regularization of the initial equations, which applies a finite volume method that avoids limiting procedures and includes them controlled numerical dissipation. Calculations are carried out within open software package OpenFOAM is installed at ISP ras. Unsteady flow in the pump is studied. © 2019 IEEE.

关键词： Numerical methods

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Adaptive Homing Sequences for Partial Weakly-initialized Observable FSMs

Adaptive Homing Sequences for Partial Weakly-initialized Obs...

引用

2021 IEEE East-West Design and Test Symposium, EWDTS 2021

作者： Vinarskii, Evgenii Tvardovskii, Aleksandr Yevtushenko, Nina Higher School of Economics Moscow Russia Tomsk State University Tomsk Russia Ivannikov Institute for System Programming of the RAS Moscow Russia

ISBN: (纸本)9781665445030

Finite State Machine (FSM) based state identification problem is widely used for analysis of discrete event systems. A homing sequence (HS) allows to determine the current state of an FSM under investigation. An HS is known to always exist and has polynomial length with respect to the number of states for a non-initialized reduced complete deterministic FSM where for each input sequence there is exactly one output sequence and any state can be an initial state. The HS problem becomes more complex if partial, non-deterministic or weakly-initialized machines are considered;for such FSMs an HS not always exists and can be much longer when existing. In particular, it has been proven that for a complete weakly-initialized non-deterministic FSM, length of a shortest adaptive HS (AHS) can be exponential with respect to the number of FSM states but HS length was not evaluated. In this paper, we consider the HS problem for partial observable possibly non-deterministic FSMs. In particular, we suggest a criterion for the existence of an AHS for a partial observable FSM and estimate the length of a shortest AHS. © 2021 IEEE.

关键词： Automata Discrete-event systems

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Numerical Simulation of Supersonic Jet Noise Using Open Source Software 1

引用

23rd International Conference on Computational Science, ICCS 2023

作者： Epikhin, Andrey But, Ivan Ivannikov Institute for System Programming of the RAS Moscow109004 Russia Keldysh Institute of Applied Mathematics of the RAS Moscow125047 Russia Bauman Moscow State Technical University Moscow105005 Russia

ISBN: (数字)9783031360305

ISBN: (纸本)9783031360299

The paper is devoted to the study of various numerical algorithms for calculating the flow and acoustics characteristics of supersonic jets implemented in open source software. The ideally expanded supersonic jet with parameters , is considered. A comparison of various approaches implemented in the OpenFOAM and block-structured adaptive mesh refinement framework of AMReX is conducted. Numerical algorithms for compressible gas flow implemented in pimpleCentralFoam, QGDFoam and CNS solvers are considered. Acoustic noise are calculated using the Ffowcs Williams and Hawkings analogy implemented in the libAcoustics library. Cross-validation comparison of the flow fields and acoustic characteristics is carried out. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2023.

关键词： Open source software

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Numeric Truncation Security Predicate

Numeric Truncation Security Predicate

引用

2023 Ivannikov ISPras Open Conference, ISPras 2023

作者： Mezhuev, Timofey Kobrin, Ilay Vishnyakov, Alexey Kuts, Daniil Ivannikov Institute for System Programming of the Ras Moscow Russia Lomonosov Moscow State University Moscow Russia Yandex Cloud Moscow Russia

ISBN: (纸本)9798350349993

Numeric truncation is a widely spread error in software written in languages with static data typing, such as C/C++ or Java. It occurs when the significant bits of the value with a bigger type size are truncated during value conversion to the smaller type. Utilizing one of the most powerful methods for path exploration and automated bug detection called dynamic symbolic execution (DSE), we propose the symbolic security predicate for numeric truncation error detection, developed on top of DSE tool Sydr. Firstly, we execute the program on the data, which does not lead to any errors. During program execution we update symbolic shadow stack and shadow registers to track symbolic sizes of the symbolic variables to avoid false positives. Then, if we meet the instruction, which truncates the symbolic variable, we build the security predicate, try to solve it with the SMT-solver and in case of success save new input file to reproduce the error. We tested our approach on Juliet Dynamic test suite for CWE-197 and achieved 100% accuracy. We approved the workability of our approach by detecting 12 new errors of numeric truncation in 5 different real-world open source projects within OSS-Sydr-Fuzz project. All of the errors were reported, most of the reports were equipped with appropriate fixes, successfully confirmed and applied by project maintainers. © 2023 IEEE.

关键词： Error detection

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Optimizing Components of Multi-Module systems Based on don't Care Input Sequences

Optimizing Components of Multi-Module Systems Based on don't...

引用

2020 IEEE East-West Design and Test Symposium, EWDTS 2020

作者： Shirokova, Ekaterina Evtushenko, Larisa Laputenko, Andrey Yevtushenko, Nina Tomsk State University Higher School of Economics Tomsk Russia Ivannikov Institute for System Programming of Ras Higher School of Economics Moscow Russia

ISBN: (数字)9781728198996

ISBN: (纸本)9781728198996

In this paper, we use a window approach when optimizing Finite State Machine (FSM) components of a multi module system. Given a window with a loop-free binary composition of complete deterministic FSMs, we construct a partial FSM for the tail component FSM such that any reduced form of this partial FSM can replace the tail component preserving the composition behaviour. There are a number of cases when using a partial network equivalent instead of the initial component FSM allows to simplify the corresponding logic circuit with respect to the number of gates and path length between primary inputs and outputs. © 2020 IEEE.

关键词： Computer circuits

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A TLM-based approach to functional verification of hardware components at different abstraction levels

A TLM-based approach to functional verification of hardware ...

引用

Latin American Test Workshop, LATW

作者： Mikhail Chupilko Alexander Kamkin Institute for System Programming RAS Moscow Russia

Verification has long been recognized as an integral part of the hardware design process. When designing a system, engineers usually use various design representations and concretize them step by step up to a physical layout. At the beginning of the process, when there is much of indeterminacy, only abstract reference models are applicable to verification; when the process is close to the end, more concrete ones can be utilized. The article concerns problems of developing reusable verification systems (testbenches), which can be used to analyze different versions of the same component at different abstraction levels. We suggest an approach to construct reusable reaction checkers basing on a concept of Transaction Level Modeling (TLM). The paper includes general description of the approach, considers several particular cases, and outlines our experience.

关键词： Adaptation models Computational modeling Hardware Generators Computer architecture Detectors Time domain analysis

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ACCOUNTING and MONITORING INFrasTRUCTURE for DISTRIBUTED COMPUTING in the ATLAS EXPERIMENT 9

ACCOUNTING and MONITORING INFRASTRUCTURE for DISTRIBUTED COM...

引用

9th International Conference "Distributed Computing and Grid Technologies in Science and Education", GRID 2021

作者： Alekseev, Aleksandr Barberis, Dario Beermann, Thomas Institute for System Programming The RAS Russia Universita di Genova INFN Via Dodecaneso 33 GenovaI-16146 Italy University of Wuppertal Germany

The ATLAS experiment uses various tools to monitor and analyze the metadata of the main distributed computing applications. One of the tools is fully based on the Unified Monitoring Infrastructure provided by the CERN-IT MonIT group. The Unified Monitoring Infrastructure uses modern and efficient open-source solutions such as Kafka, InfluxDB, ElasticSearch, Kibana and Grafana to collect, store and visualize metadata produced by data and workflow management systems. This software stack is adapted for the ATLAS experiment and allows the development of dedicated monitoring and accounting dashboards in Grafana visualization environment. The current state of the monitoring infrastructure and overview of core monitoring and accounting dashboards in the ATLAS are presented in this contribution. Copyright © 2021 for this paper by its authors. Use permitted under Creative Commons License Attribution 4.0 International (CC BY 4.0).

关键词： Metadata

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Evaluating Length of a Shortest Adaptive Homing Sequence for Weakly Initialized FSMs

Evaluating Length of a Shortest Adaptive Homing Sequence for...

引用

2020 IEEE East-West Design and Test Symposium, EWDTS 2020

作者： Vinarskii, Evgenii Yevtushenko, Nina Lomonosov Moscow State University Department of Computer Science Moscow Russia Ivannikov Institute for System Programming of Ras Software Engineering Deparment Moscow Russia

ISBN: (数字)9781728198996

ISBN: (纸本)9781728198996

There are many research papers devoted to the state identification problem of finite state machines (FSMs) which are widely used for analysis of discrete event systems. A deterministic complete reduced FSM always has a homing sequence (HS) but a number of non-deterministic FSMs not necessarily have a preset HS;nevertheless, those FSMs can still have an adaptive HS. Moreover, adaptive HS can be shorter than the preset. If each state can be an initial state of a complete FSM, i.e., an FSM is non-initialized, then a shortest adaptive HS (if it exists) has polynomial length in the number of FSM states. We show that it is not the case for weakly-initialized FSMs: such FSMs can have a shortest adaptive HS of exponential length in the number of FSM states/transitions. However, the experimental evaluation shows that the non-polynomial upper bound for a shortest adaptive HS was never reached for randomly generated weakly-initialized two-input FSMs. © 2020 IEEE.

关键词： Adaptive homing sequence Non-deterministic FSM weakly initialized FSM

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The Unknown Component Problem: Theory and Applications

引用

2014年

作者： Tiziano Villa Nina V Yevtushenko Robert King Brayton Alan Mishchenko Alexandre F Petrenko Alberto L Sangiovanni-Vincentelli

ISBN: (纸本)9781489973948

The Problem of the Unknown Component: Theory and Applications addresses the issue of designing a component that, combined with a known part of a system, conforms to an overall specification. The authors tackle this problem by solving abstract equations over a language. The most general solutions are studied when both synchronous and parallel composition operators are used. The abstract equations are specialized to languages associated with important classes of automata used for modeling systems. The book is a blend of theory and practice, which includes a description of a software package with applications to sequential synthesis of finite state machines. Specific topologies interconnecting the components, exact and heuristic techniques, and optimization scenarios are studied. Finally the scope is enlarged to domains like testing, supervisory control, game theory and synthesis for special omega languages. The authors present original results of the authors along with an overview of existing ones.

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