1.

Record Nr.

UNISA996464384103316

Titolo

Formal methods for industrial critical systems : 26th international conference, FMICS 2021, Paris, France, August 24-26, 2021 : proceedings / / Alberto Lluch Lafuente, Anastasia Mavridou (editors)

Pubbl/distr/stampa

Cham, Switzerland : , : Springer, , [2021]

©2021

ISBN

3-030-85248-2

Descrizione fisica

1 online resource (253 pages)

Collana

Lecture Notes in Computer Science ; ; v.12863

Disciplina

004.0151

Soggetti

Formal methods (Computer science)

Software engineering

Computer programs - Verification

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Nota di contenuto

Intro -- Preface -- Organization -- Haunting Tales of Applied Formal Methods from Academia and Industry (Abstract of Invited Talk) -- Contents -- Verification -- Verification of Co-simulation Algorithms Subject to Algebraic Loops and Adaptive Steps -- 1 Introduction -- 2 Background -- 2.1 Simulation Units -- 2.2 Co-simulation Algorithms -- 2.3 Correct Co-simulation Algorithms -- 3 Related Work -- 4 Verifying Complex Co-simulation Algorithms -- 4.1 Verifying an Algorithm Using UPPAAL -- 4.2 Verifying Complex Simulation Scenarios in UPPAAL -- 4.3 Debugging Algorithm Errors -- 5 Validation -- 5.1 Motivation Example -- 5.2 Complex Scenario -- 6 Concluding Remarks -- References -- Automated Verification of Temporal Properties of Ladder Programs -- 1 Introduction -- 2 Introduction to Ladder Programming -- 3 Translation of Ladder Programs to WhyML -- 3.1 The Why3 Environment -- 3.2 Translation of Ladder Codes -- 3.3 The Ladder Loop, and the Encoding of Timing Charts -- 4 Implementation and Experimental Results -- 4.1 Overview of the Approach -- 4.2 Results on Correct Code -- 4.3 Results on Incorrect Code -- 5 Discussions, Related Work and Future Work -- References -- Spatial Model Checking for Smart Stations -- 1 Introduction and Outline -- 2 Industrial Context and Case Study: Station Lighting -- 3 Challenges in



User-Centric Design of Smart Stations -- 4 Methodology -- 4.1 Spatial Model Checking -- 4.2 Statistical Spatio-Temporal Model Checking -- 5 Conclusion and Outlook -- References -- Program Safety and Education -- Parametric Faults in Safety Critical Programs -- 1 Introduction -- 2 Background -- 3 Identifying Incorrect Parameters -- 4 Case Study -- 5 Discussion -- 6 Related Works -- 7 Conclusion -- References -- Modular Transformation of Java Exceptions Modulo Errors -- 1 Introduction -- 2 Background -- 2.1 Abrupt Termination -- 2.2 VerCors.

3 Related Work -- 4 Semantics of Exceptions -- 4.1 Errors and Sources of Errors -- 4.2 Ideal Semantics -- 4.3 Semantics Modulo Errors -- 5 The finally Encoding Problem -- 5.1 Candidate Encodings -- 6 Evaluation -- 6.1 Common Exception Patterns in Commercial Software -- 6.2 Verification with VerCors -- 7 Discussion -- 7.1 Backend Requirements -- 7.2 Performance -- 8 Conclusion -- References -- On Education and Training in Formal Methods for Industrial Critical Systems -- 1 Introduction -- 2 Terminology -- 3 Roles in Formal Methods for Industrial Critical Systems: [Engineer] and [Engineer] -- 3.1 FMICS Roles and Activities -- 3.2 Consequences on Education and Training -- 4 Learning Objectives:  vs. -- 5 Curriculum and Course Construction -- 6 Exemplary Implementation -- 7 Conclusion -- References -- (Event-)B Modeling and Validation -- Improving SMT Solver Integrations for the Validation of B and Event-B Models -- 1 Introduction -- 2 Former Z3 Integration -- 2.1 High-Level Translation -- 2.2 Workflow -- 3 New Z3 Integration -- 3.1 High-Level Translation -- 3.2 New Workflow -- 4 Empirical Evaluation -- 4.1 Weaknesses of the Integration of Z3 -- 4.2 Strengths of the Integration of Z3 -- 4.3 Symbolic Model Checking -- 5 Related Work -- 6 Future Work -- 7 Conclusion -- References -- Standard Conformance-by-Construction with Event-B -- 1 Introduction -- 2 Certification and Conformance -- 3 Event-B -- 3.1 Contexts and Machines (Tables1b and 1c) -- 3.2 Event-B Extensions with Theories -- 4 Case Study: ARINC 661 + Multi-purpose Interactive Application -- 4.1 ARINC 661 Standard Specification: An Extract -- 4.2 Multi-purpose Interactive Application and Weather Radar System -- 5 Standards Formalised as Ontologies ((1) on Fig.2) -- 6 Our Approach -- 6.1 Domain Standards as Ontology-Based Theories ((2) on Fig.2) -- 6.2 Standard Theory Instantiation ((3) on Fig.2).

6.3 Model Annotation for Conformance ((4) on Fig.2) -- 7 Standard Conformance-by-Construction: The Case of ARINC 661 -- 7.1 ARINC 661 Standard Formalisation ((2) on Fig.2) -- 7.2 System-Specific Concepts Describing WXR Widgets ((3) on Fig.2) -- 7.3 Annotated Event-B Model of WXR Application ((4) on Fig.2) -- 8 Assessment -- 9 Conclusion -- References -- Formal Analysis -- Randomized Reachability Analysis in Uppaal: Fast Error Detection in Timed Systems -- 1 Introduction -- 2 Randomized Reachability Analysis -- 3 New Results on Herschel-Planck -- 4 More Schedulability -- 5 Gossiping Girls -- 6 Scalability Experiments -- 7 Conclusion -- 8 Future Work -- References -- Verifying the Mathematical Library of an UAV Autopilot with Frama-C -- 1 Introduction -- 2 The Paparazzi Autopilot -- 3 Proving the Absence of Runtime Errors -- 4 Functional Verification Using Automatic Provers -- 5 Functional Verification Using Interactive Provers -- 6 Conclusion -- References -- Formal Analysis of the UNISIG Safety Application Intermediate Sub-layer -- 1 Introduction -- 2 Background -- 3 The Model -- 4 The Analysis -- 5 Conclusion -- References -- Tools -- ProB2-UI: A Java-Based User Interface for ProB -- 1 Introduction and Motivation -- 2 Features of ProB2-UI -- 3 Related Work -- 4 Conclusion -- References -- Intrepid: A Scriptable



and Cloud-Ready SMT-Based Model Checker -- 1 Introduction -- 2 Constructing Models -- 2.1 Translating Industrially-Relevant Models -- 3 Simulating Models -- 4 Model Checking -- 4.1 A Comparison of the Engines -- 5 Sample Applications -- 5.1 Equivalence Checking for Clock-Gating -- 5.2 Automated Test Generation of MC/DC -- 6 A REST API for Model Checking -- 7 Conclusion -- References -- Merit and Blame Assignment with Kind 2 -- 1 Introduction -- 2 Running Example -- 3 The New Features -- 4 Implementation Details -- References.

Test Generation and Probabilistic Verification -- PSY-TaLiRo: A Python Toolbox for Search-Based Test Generation for Cyber-Physical Systems -- 1 Introduction -- 2 Architecture -- 3 Interface -- 3.1 System Under Test (SUT) -- 3.2 Specifications -- 3.3 Optimizers -- 3.4 Options -- 4 Examples -- 4.1 MATLAB/Simulink -- 4.2 PX4 -- 5 Conclusions -- References -- Probabilistic Verification for Reliability of a Two-by-Two Network-on-Chip System -- 1 Introduction -- 2 Motivation -- 3 Concrete Formal Model for NoC -- 4 Need for Abstraction -- 4.1 Predicate Abstraction to Simplify Complex Data Structures -- 4.2 Probabilistic Choice Abstraction -- 4.3 Boolean Queue Abstraction -- 5 Results -- 5.1 Every Other Cycle Flit Injection -- 5.2 Burst Flit Injection -- 5.3 Minimizing PSN with Flit Generation Pattern -- 5.4 Results Summary and Discussion -- 6 Conclusion -- References -- Author Index.



2.

Record Nr.

UNIORUON00082439

Autore

KREYENBROEK, Philip G.

Titolo

Cultura e identità curda / Philip G. Kreyenbroek, Christine Allison

Pubbl/distr/stampa

251 p., : ill. ; 22 cm

Titolo uniforme

Kurdish culture and identity

ISBN

88-86969-15-5

Edizione

[Trieste : Asterios]

Descrizione fisica

Tit. orig.: Kurdish culture and identity

Altri autori (Persone)

ALLISON, Christine

Disciplina

909.049159

Soggetti

CURDI - Storia

Lingua di pubblicazione

Italiano

Formato

Materiale a stampa

Livello bibliografico

Monografia



3.

Record Nr.

UNINA9910404089003321

Autore

Cameán Fernández Ana María

Titolo

Cyanobacteria and Cyanotoxins: New Advances and Future Challenges

Pubbl/distr/stampa

MDPI - Multidisciplinary Digital Publishing Institute, 2020

ISBN

3-03921-839-5

Descrizione fisica

1 online resource (246 p.)

Soggetti

Medicine

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Sommario/riassunto

Cyanobacteria are a group of ubiquitous photosynthetic prokaryotes. Their occurrence has been increasing worldwide, due to anthropogenic activities and climate change. Several cyanobacterial species are able to synthesize a high number of bioactive molecules, among them, cyanotoxins (microcystins, cylindrospermopsin, nodularin, etc.), which are considered a health concern. For risk assessment of cyanotoxins, more scientific knowledge is required to perform adequate hazard characterization, exposure evaluation and, finally, risk characterization of these toxins. This Special Issue "Cyanobacteria and Cyanotoxins: New Advances and Future Challenges" presents new research or review articles related to different aspects of cyanobacteria and cyanotoxins, and contributes to providing new toxicological data and methods for a more realistic risk assessment.