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Static Guard Analysis in Timed Automata Verification
[chapter]
2003
Lecture Notes in Computer Science
By definition Timed Automata have an infinite state-space, thus for verification purposes, an exact finite abstraction is required. ...
We show that the location-based zone abstraction is sound and complete with respect to location reachability; that it generalises active-clock reduction, in the sense that an inactive clock has no relevant ...
In UPPAAL, clocks (and clock differences) may be compared to expressions over bounded integer variables. ...
doi:10.1007/3-540-36577-x_18
fatcat:fviucp3u2nb6rgighux6bszb5a
Multi-core Reachability for Timed Automata
[chapter]
2012
Lecture Notes in Computer Science
Acknowledgments We would like to thank the LTSmin and APRON developers for making their excellent code available to others in the research community. ...
Thus, for a more conventional analysis specification an extrapolation can be viewed as a widening. ...
The models can be edited in the uppaal [72] GUI, to introduce static partitionings. ...
doi:10.1007/978-3-642-33365-1_8
fatcat:qwhq3mr2bzfizm54xhsw7ddd5a
Slicing for uppaal
2008
2008 Annual IEEE Student Paper Conference
The focus of this thesis is to introduce slicing for Uppaal [9] . Slicing is a technique based on static analysis used to reduce the syntactic size of models or applications. ...
Using automated slicing in Uppaal will eliminate the need for users to manually optimize models for faster verification of a certain property. ...
In the following, we give a further introduction to the language used in Uppaal, in order to motivate research into static analysis of the imperative language components and to achieve even better performance ...
doi:10.1109/aispc.2008.4460546
fatcat:qam4k3uhqzdldlqmvabe5t3fc4
Efficient Analysis and Synthesis of Complex Quantitative Systems
[article]
2018
PhD series, Technical Faculty of IT and Design, ˜Aalborg=ålborgœ University
In the topic of tool integration, we extend the tool Uppaal to facilitate interoperability with other tools. ...
We also present a case-study using externally defined components, such as an ARM-processor emulator, in a classical model checking context. iii Resumé Fra toastere til rumstationer har computerbaseret ...
The third author is partially affiliated with FI MU in Brno. Acknowledgments. The research leading to these results was made possible by an external stay partially funded by Otto Mønsted Fonden. ...
doi:10.5278/vbn.phd.tech.00043
fatcat:fq4x5hnl5rgdzdtolcimzbonxm
Formal verification of timed systems: a survey and perspective
2004
Proceedings of the IEEE
An overview of the current state of the art of formal verification of real-time systems is presented. ...
Behrmann et al. proposed a static analysis technique on triggering condition [35] .
F. ...
UPPAAL UPPAAL [39] , [183] has now grown into an integrated tool environment for modeling, validation, and verification of real-time systems modeled by a network of automata with high-level data objects ...
doi:10.1109/jproc.2004.831197
fatcat:7e5u5rvdbncqbmkku7szkdyz34
Symbolic-Numeric Methods for Problem Solving in CPS (Dagstuhl Seminar 16491)
2017
Dagstuhl Reports
Reflecting the fundamental role numeric and mixed symbolic-numeric arguments play in the analysis, decision making, and control of cyber-physical processes, this seminar promoted crossfertilization between ...
means of error-propagation analysis; numerical and/or symbolic methods such as verified integrations, interval methods and arithmetic constraint solving; reactive and in-advance planning and optimization ...
Combining Symbolic Analysis and Simulation in Uppaal Stratego We overview Pryce's structural analysis (SA) theory and its realization in the DAETS solver (Nedialkov and Pryce), a C++ package for solving ...
doi:10.4230/dagrep.6.12.1
dblp:journals/dagstuhl-reports/BogomolovFMR16
fatcat:sydj4slvefa7boehai7gpnfupm
Lazy Reachability Checking for Timed Automata with Discrete Variables
[chapter]
2018
Lecture Notes in Computer Science
In this paper, we propose a lazy abstraction method for the location reachability problem of timed automata that can be used to efficiently control the visibility of discrete variables occurring in such ...
We combine in a single algorithm our abstraction method with known efficient lazy abstraction algorithms for the handling of clock variables. ...
The standard solution involves performing a forward exploration in the zone abstract domain [7] , combined with extrapolation [3] parametrized by bounds appearing in guards, extracted by static analysis ...
doi:10.1007/978-3-319-94111-0_14
fatcat:lkb3gkjv6rfttb3kkqjepdubb4
Towards formal security analysis of GTRBAC using timed automata
2009
Proceedings of the 14th ACM symposium on Access control models and technologies - SACMAT '09
Such an analysis calls for formal verification. While formal analysis on traditional RBAC has been done to some extent, the extensions of RBAC lack such an analysis. ...
Both time and space analysis has been done for studying the performance of the approach under different configurations. ...
[12] considered negative preconditions and static mutually exclusive role constraints in the policy analysis of administrative RBAC. ...
doi:10.1145/1542207.1542214
dblp:conf/sacmat/MondalSA09
fatcat:yst7sskmhjckrhie6dnuoxzhqe
Efficient Detection of Zeno Runs in Timed Automata
[chapter]
Lecture Notes in Computer Science
As an alternative, we describe here an efficient static analysis to assert absence of Zeno runs on Uppaal networks; this is based on Tripakis's strong non-Zenoness property, and identifies all loops in ...
Zeno runs, where infinitely many actions occur in finite time, may inadvertently arise in timed automata specifications. ...
Acknowledgments: We are grateful to the researchers who made the benchmark models available, and to the reviewers for their insightful comments. ...
doi:10.1007/978-3-540-75454-1_15
fatcat:elp2compnjfj3bk5dcqs3gzwnq
TCTL Inevitability Analysis of Dense-time Systems
[article]
2003
arXiv
pre-print
We also discuss the TCTL subclass with only universal path quantifiers which allows for the safe abstraction analysis of inevitability properties. ...
Inevitability properties in branching temporal logics are of the syntax forall eventually \phi, where \phi is an arbitrary (timed) CTL formula. ...
≤, <, =, >, ≥, and c is an integer constant. ...
arXiv:cs/0304003v2
fatcat:axluzteihfaf5idtohqu6x6mue
Predictive and Reactive Scheduling for a Critical Machine of a Production System
2014
Advanced Materials Research
In the paper a production model with failures is presented where successive failure-free times are supposed to have normal distributions and are followed by normally distributed times of repairs. ...
Acknowledgments The authors would like to acknowledge Cor Hurkens for his valuable comments and Roel Boumen and Maarten van Bree for their help with the case. ...
Acknowledgments The authors would like to acknowledge Cor Hurkens for his valuable comments.
Acknowledgments The authors would like to acknowledge Robert Dumont for his help with the case. ...
doi:10.4028/www.scientific.net/amr.1036.909
fatcat:3ujweobndjgl7mqotcqrxfyypy
Abstraction Refinement-Based Verification of Timed Automata
2021
Zenodo
In addition, the state space is not necessarily finite, in particular for real-time systems, where continuous variables with time dimension are part of the specification. ...
Model checking is an automatic formal verification technique that is based on exhaustive traversal of the design model's state space. ...
This can be performed directly by extrapolation [Beh+04] parameterized by bounds obtained by static analysis [Beh+03] . ...
doi:10.5281/zenodo.4759046
fatcat:3vrprqrhfjeknjjdn74uqoreo4
TCTL Inevitability Analysis of Dense-Time Systems: From Theory to Engineering
2006
IEEE Transactions on Software Engineering
Inevitability properties in branching temporal logics are of the syntax ∀♦φ, where φ is an arbitrary (timed) CTL (Computation Tree Logic) formula. ...
We have experimented with various issues, which may affect the performance of TCTL inevitability analysis. Specifically, our algorithms come with a parameter for the measurement of time-progress. ...
or ≥, and c is an integer constant. ...
doi:10.1109/tse.2006.71
fatcat:ejdyth75kvhvhgamthn32xq2ma
Configurable verification of timed automata with discrete variables
2020
Acta Informatica
Moreover, based on our previous work, we uniformly formalize in our framework several abstraction refinement strategies for both clock and discrete variables that can be freely combined, resulting in many ...
In this paper, we propose a configurable lazy abstraction framework for the location reachability problem of timed automata that potentially contain discrete variables. ...
by static analysis [3] . ...
doi:10.1007/s00236-020-00393-4
fatcat:w7or2qfe2zht7owdlmbq2defji
Model Checking Real-Time Systems
[chapter]
2018
Handbook of Model Checking
We begin with introducing the model, as an extension of finite-state automata with real-valued variables for measuring time. ...
This chapter surveys timed automata as a formalism for model checking real-time systems. ...
Acknowledgement We thank the reviewers for their numerous comments, remarks and additional references, which greatly helped us improve this chapter. ...
doi:10.1007/978-3-319-10575-8_29
fatcat:thsp3udcpnfyjpjzn6i2slbplm
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