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Proving the Absence Property Pattern Using the B Method

Amel Mammar, Marc Frappier, Raphael Chane-Yack-Fa
2012 2012 IEEE 14th International Symposium on High-Assurance Systems Engineering  
In this paper, we suggest a formal approach, based on the use of the B method, to verifying absence properties of the form Abs(P2, From P1 Until P3) that express that some states, represented by predicate  ...  Dynamic properties are very useful in the specification of Information Systems (IS) and security policies. They allow the user to express properties that involve several states of a system.  ...  PROVING THE ABSENCE PATTERNS A.  ... 
doi:10.1109/hase.2012.26 dblp:conf/hase/MammarFC12 fatcat:k7zfkttpqjhptffyl6n3q7a64y

Time Properties Verification Framework for UML-MARTE Safety Critical Real-Time Systems [chapter]

Ning Ge, Marc Pantel
2012 Lecture Notes in Computer Science  
Meanwhile, it translates the time properties into a set of property patterns, corresponding to TPN observers. The observer-based model checking approach is then performed on the produced TPN.  ...  UML and MARTE are standardized modelling languages widely accepted by industrial designers for the design of RTS using Model-Driven Engineering (MDE).  ...  We choose one of the property patterns, |T (a t ) − T (b t )| < δ, to illustrate the verification method.  ... 
doi:10.1007/978-3-642-31491-9_27 fatcat:sjuadg65ynbhhcxaogk6ovxxom

Verifying safety properties of a class of infinite-state distributed algorithms [chapter]

Bengt Jonsson, Lars Kempe
1995 Lecture Notes in Computer Science  
The main idea of our method is the following.  ...  an error state) as a fixpoint, and finally we prove that the initial state is not "unsafe".  ...  We present a method for proving teachability properties, and give some first results on proving some properties of basic telephone services.  ... 
doi:10.1007/3-540-60045-0_39 fatcat:6yv4ikhqr5ahreaxe6mdxeyeua

A formal framework to specify and verify real-time properties on critical systems

Nouha Abid, Silvano Dal Zilio, Didier Le Botlan
2014 International Journal of Critical Computer-Based Systems  
We focus on properties commonly found during the analysis of reactive systems, expressed using real-time specification patterns.  ...  We propose a verified approach to the formal verification of timed properties using model-checking techniques.  ...  In this paper, we propose a complete framework that includes: the definition of timed patterns; an approach for checking timed properties; and methods for proving the correctness of this verification scheme  ... 
doi:10.1504/ijccbs.2014.059593 fatcat:kaifli6ulbdmnibscw4u2hijfe

Towards Provable Security of Rijndael-Like Spn Ciphers Against Differential Attacks

Victor Ruzhentsev, Victor Dolgov
2012 Tatra Mountains Mathematical Publications  
Theorems about the absence of effective truncated (byte) differential characteristics and effective truncated (byte) differentials for ciphers with sufficient number of rounds are proved.  ...  The strength of Rijndael-like ciphers to the truncated differential attack is considered.  ...  Also, the new approach to prove the absence of effective byte differentials for Rijndael-like ciphers was presented.  ... 
doi:10.2478/v10127-012-0046-4 fatcat:mxtrguy2qfesfcm2cjkb23yzb4

Automating the Verification of Realtime Observers Using Probes and the Modal mu-calculus [chapter]

Silvano Dal Zilio, Bernard Berthomieu
2016 Lecture Notes in Computer Science  
A classical method for model-checking timed properties-such as those expressed using timed extensions of temporal logic-is to rely on the use of observers.  ...  Essentially, this boils down to proving that: (1) every trace that contradicts a property can be detected by the observer; but also that (2) the observer is innocuous, meaning that it cannot interfere  ...  This result also prove the usefulness of having access to a complete toolbox that provides different kind of tools: editors, model-checkers for different kind of logics, . . .  ... 
doi:10.1007/978-3-319-28678-5_7 fatcat:ppupvykm5za7ndwqvhyx47xke4

Automating the Verification of Realtime Observers using Probes and the Modal mu-calculus [article]

Silvano Dal Zilio
2015 arXiv   pre-print
A classical method for model-checking timed properties-such as those expressed using timed extensions of temporal logic-is to rely on the use of observers.  ...  Essentially, this boils down to proving that: (1) every trace that contradicts a property can be detected by the observer; but also that (2) the observer is innocuous, meaning that it cannot interfere  ...  [2] propose a method to verify properties based on the use of test automata.  ... 
arXiv:1509.06507v1 fatcat:q4d2iks6yzcp7nvnhi2rxsuz6y

Rapid property specification and checking for model-based formalisms

Daniel Balasubramanian, Gabor Pap, Harmon Nine, Gabor Karsai, Michael Lowry, Corina Pasareanu, Tom Pressburger
2011 2011 22nd IEEE International Symposium on Rapid System Prototyping  
This paper describes methods for specifying verification properties on abstract models that are then checked on implementation level code.  ...  In model-based development, verification techniques can be used to check whether an abstract model satisfies a set of properties.  ...  The property that Command should never go directly from -2 to 2 is defined in an analogous way using the absence pattern dialog. B.  ... 
doi:10.1109/rsp.2011.5929985 dblp:conf/rsp/BalasubramanianPNKLPP11 fatcat:4ioq5a5etvbzhexzzmrk3hwwtq

Scalable, flexible and high resolution patterning of CVD graphene

Mario Hofmann, Ya-Ping Hsieh, Allen L. Hsu, Jing Kong
2014 Nanoscale  
To increase the commercial impact of graphene in those applications, a scalable and economical method for producing graphene patterns is required.  ...  The unique properties of graphene make it a promising material for interconnects in flexible and transparent electronics.  ...  This property could prove useful in elds such as three-dimensional electronics, novel detectors, 20 implantable devices 20 or displays. 4 Conventional lithographical techniques, however, can only produce  ... 
doi:10.1039/c3nr04968j pmid:24189709 fatcat:zcu45djmsnc3hd6xjilgdjf2se

Microwave Synthesis of CaTiO3 Nanoparticles by the Sol-Gel Method

Victor F. Kostryukov, Anastasia E. Igonina
2020 Конденсированные среды и межфазные границы  
The microwave effect used in the synthesis of CaTiO3 samples when using sodium carbonate as a precipitant allowed obtaining a chemically homogeneous nanopowder with a significant reduction of the process  ...  Bayraktar D., Clemens F., Diethelm S., et al.Production and properties of substituted LaFeO3‑perovskitetubular membranes for partial oxidation ofmethane to syngas.  ...  Acknowledgements The results of the research were obtained using the Centre for the Collective Use of Scientific Equipment of Voronezh State University. URL:http://ckp.vsu.ru  ... 
doi:10.17308/kcmf.2020.22/3121 fatcat:tyyrasifd5bd5esb6mc62d5iju

Page 97 of Metal Finishing Vol. 23, Issue 3 [page]

1925 Metal Finishing  
It covers the physical properties, uses, metallography and chemical properties of tantalum, tungsten and molybdenum. X-RAY EVIDENCE VERSUS THE AMORPHOUS-METAL HYPOTHESIS By Roserrt J.  ...  The paper may be sum marized briefly as follows: 1. Two methods for taking x-ray diffraction patterns of metals have been described and their the powder method pointed out, 2.  ... 

Imaging Belgian Chocolate by Field Ion Microscopy

Luc Jacobs, Thierry Visart de Bocarmé, Cédric Barroo
2019 Microscopy and Microanalysis  
The resulting cocoa butter can present six different crystallographic structures with their own densities and melting points, affecting the chocolate properties, such as the fat bloom formation, and induce  ...  The extremity of very sharp tipsamples can be imaged using the emission of electrons (FEM-mode) or the ionization of an imaging gas (FIM-mode).  ...  Figure 1 . 1 Techniques for covering FIM-tips with a thin layer of chocolate using: a. the microelectropolishing setup and b. the 'bain-marie' technique; FEM patterns of a Rh sample c. in absence (1,23  ... 
doi:10.1017/s1431927619002344 fatcat:4u45akibsbh3bd7qsinvynxkri

Patterns in property specifications for finite-state verification

Matthew B. Dwyer, George S. Avrunin, James C. Corbett
1999 Proceedings of the 21st international conference on Software engineering - ICSE '99  
Finite-state verification refers to a set of techniques for proving properties of finite-state models of computer systems.  ...  In a recent paper, we proposed a pattern-based approach to the presentation, codification and reuse of property specifications for finite-state verification.  ...  ACKNOWLEDGMENTS We would like to thank Laura Dillon, Hamid Alavi and Corina Pasareanu for making significant contributions to the pattern system.  ... 
doi:10.1145/302405.302672 dblp:conf/icse/DwyerAC99 fatcat:rtpgpik2rfenlnbmgdjkhpcmny

Induction in CEGAR for Detecting Counterexamples

Chao Wang, Aarti Gupta, Franjo Ivancic
2007 Formal Methods in Computer Aided Design (FMCAD'07)  
Induction has been studied in model checking for proving the validity of safety properties, i.e., showing the absence of counterexamples.  ...  To our knowledge, induction has not been used to refute safety properties.  ...  If the property holds in M , it also holds in M and the property is proved.  ... 
doi:10.1109/famcad.2007.21 dblp:conf/fmcad/WangGI07 fatcat:jviiphc6enhgjhnn2kwhso26yu

Magnetic property of nanoparticle La1-xAxFeO3 (A = Y, Nd) prepared by the high-energy milling method

Nguyen Thi Thuy, Pham Nguyen Thi Thanh Nhan, Le Thi Le
2020 HUE UNIVERSITY JOURNAL OF SCIENCE NATURAL SCIENCE  
In this paper, nanocrystalline La1–xYxFeO3 and La1-xNdxFeO3 (0 ≤ x ≤ 0.3) were prepared by using the high-energy milling method.  ...  The doping of Y and Nd into the A position of ABO3 affects the structure and magnetic properties of the material.  ...  The absence of impurity lines proves high phase purity and the success of the high-energy milling method in stabilizing the Pnma structure for the Y content between 0 and 0.3 [6] [7] [8] .  ... 
doi:10.26459/hueuni-jns.v129i1b.5629 doaj:5cf5ee2d6f9549479c22f9f28b45517a fatcat:5isnpo7oyfavxg2wjrqryjgznq
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