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On Verifying Fair Lossy Channel Systems [chapter]

Benoît Masson, Ph. Schnoebelen
2002 Lecture Notes in Computer Science  
Lossy channel systems are systems of finite state automata that communicate via unreliable unbounded fifo channels.  ...  In this paper, we show that fair termination is decidable for a large class of these systems.  ...  Strongly fair termination and weakly fair termination are decidable for lossy channel systems without multiplexed channel.  ... 
doi:10.1007/3-540-45687-2_45 fatcat:zx6c6f6hwfgmhgj3sugfhtolge

Undecidable Verification Problems for Programs with Unreliable Channels

Parosh Aziz Abdulla, Bengt Jonsson
1996 Information and Computation  
We consider the class of finite-state systems communicating through unbounded but lossy FIFO channels (called lossy channel systems).  ...  In an earlier paper, we showed that the problems of checking reachability, safety properties, and eventuality properties are decidable for lossy channel systems.  ...  on channel c, replacing message losses by message receptions, and it performs some additional operations on the new alphabet symbol l. The steps of ?$ are defined by the following five cases.  ... 
doi:10.1006/inco.1996.0083 fatcat:vefnrgyd6ncgfintje4vkq6y2q

Model Checking Lossy Channels Systems Is Probably Decidable [chapter]

Nathalie Bertrand, Philippe Schnoebelen
2003 Lecture Notes in Computer Science  
properties over states, and fair termination are decidable for lossy channel systems [Fin94,CFP96,AJ96b,MS02].  ...  Surprisingly, while channel systems are Turing-powerful [BZ83], several verification problems become decidable when one assumes channels are lossy: reachability, safety properties over traces, inevitability  ...  Verifying probabilistic lossy channel systems combines issues from the verification of infinite-state systems and from the verification of probabilistic systems 1 .  ... 
doi:10.1007/3-540-36576-1_8 fatcat:rb2bcsnxivexjorblakumhdhaa

Decidability of Liveness on the TSO Memory Model [article]

Chao Wang, Gustavo Petri, Yi Lv, Teng Long, Zhiming Liu
2021 arXiv   pre-print
An important property of concurrent objects is whether they support progress -a special case of liveness-guarantees, which ensure the termination of individual method calls under system fairness assumptions  ...  However, the problem of decidability of liveness for finite state concurrent programs running on relaxed memory models remains open.  ...  on a close connection of concurrent programs on TSO and lossy channel machines [2, 20] .  ... 
arXiv:2107.09930v1 fatcat:ey3zjrppdzd23cksyafi3ksw2y

Linking Theorem Proving and Model-Checking with Well-Founded Bisimulation [chapter]

Panagiotis Manolios, Kedar Namjoshi, Robert Sumners
1999 Lecture Notes in Computer Science  
We also show that the alternating bit protocol is a refinement of a non-lossy system.  ...  We use theorem proving to show a bisimulation up to stuttering on a-potentially infinite-state-system.  ...  Acknowledgments J Moore was always available to discuss ACL2; he also read and commented on substantial parts of the proof script.  ... 
doi:10.1007/3-540-48683-6_32 fatcat:dgigcrt7ujfodlawdgv5g7rfni

Towards Verified Java Code Generation from Concurrent State Machines

Dan Zhang, Dragan Bosnacki, Mark van den Brand, Luc Engelen, Cornelis Huizing, Ruurd Kuiper, Anton Wijs
2014 ACM/IEEE International Conference on Model Driven Engineering Languages and Systems  
We present work in progress on, verified, transformation of a modeling language based on communicating concurrent state machines, slco, to Java.  ...  Some concurrency related challenges, related to atomicity and non-standard fairness issues, are pointed out. We discuss solutions based on Java synchronization concepts.  ...  They are connected to the channels via their ports. slco offers three types of channels: synchronous, asynchronous lossless, and asynchronous lossy channels.  ... 
dblp:conf/models/ZhangBBEHKW14 fatcat:gx2ta4ltpnayxlb3zzueuanuta

Verifying Programs with Unreliable Channels

Parosh Aziz Abdulla, Bengt Jonsson
1996 Information and Computation  
We consider the veri cation of a particular class of in nite-state systems, namely systems consisting of nite-state processes that communicate via unbounded lossy FIFO channels.  ...  Our results should be contrasted with the well-known fact that these problems are undecidable for systems with unbounded perfect FIFO channels.  ...  We make no assumption on fairness in the channels. Thus a system may fail to meet a certain eventuality property because the channels lose all their messages.  ... 
doi:10.1006/inco.1996.0053 fatcat:jatgzqxe35bedhkpns75iblaoi

Globally Optimal Solutions for Cross-Layer Design in Fast-Fading Lossy Delay-Constrained MANETs

Quoc-Viet Pham, Hoon Kim, Won-Joo Hwang
2015 Journal of Korea Multimedia Society  
Finally, simulation results verify that our proposal achieves considerable benefits over the existing method.  ...  The non-convex formulated problem is transformed into a convex one, which is solved by exploiting the duality technique.  ...  Followed from [4] , each link is modeled as a  queuing system. Let  be the sum of the transmission delay and queuing delay on link .  ... 
doi:10.9717/kmms.2015.18.2.168 fatcat:jhsouxwgozanvb2b2cqwwmu22y

Fairness characterization in contemporary IEEE 802.11 deployments with saturated traffic load

Aleksandr Ometov
2014 Proceedings of 15th Conference of Open Innovations Association FRUCT  
However, currently used saturation based analysis may be applied only for fair systems, hence, the question arises which system may be considered as fair.  ...  So, we propose a novel metric to define fairness.  ...  SYSTEM DESCRIPTION AND ANALYSIS IMPROVEMENT In the following, we firstly focus to the lossless system and secondly to the analysis of the lossy one.  ... 
doi:10.1109/fruct.2014.6872427 dblp:conf/fruct/Ometov14 fatcat:cktfkns42nhivplobko6sknhq4

Decidability of simulation and bisimulation between lossy channel systems and finite state systems [chapter]

Parosh Aziz Abdulla, Mats Kindahl
1995 Lecture Notes in Computer Science  
is bisimilar to a state in a lossy channel system, and (3) whether a state in a nite transition system weakly simulates a state in a lossy channel system.  ...  transition system is weakly bisimilar to a state in a lossy channel system.  ...  More precisely, we showed that both model checking and verifying eventuality properties under the assumption that the channels are fair are undecidable.  ... 
doi:10.1007/3-540-60218-6_25 fatcat:3j2k7zjn6vgndorz5mq4vpf6py

Model-checking web services business activity protocols

Abinoam P. Marques, Anders P. Ravn, Jiří Srba, Saleem Vighio
2012 International Journal on Software Tools for Technology Transfer (STTT)  
In order to verify fundamental properties of the protocols we provide formal analyses in the model checker Uppaal.  ...  Another important property of communication protocols is that all parties always reach, under certain fairness assumptions, their final states.  ...  The claim that a certain communication medium is unbounded can be automatically verified only up to a certain (constant) capacity of the channels.  ... 
doi:10.1007/s10009-012-0231-4 fatcat:sbrxwgdpujdmnbat5yowrpbto4

Fairness Based Dynamic Routing Technique (FsBDRT) in Wireless Mesh Network

Malik Mehroze, Khalid Usmani, Faraz Ahsan, Sohail Asghar
2013 Research Journal of Information Technology  
In this study we propose a Fairness Based Dynamic Routing Technique (FsBDRT) a dynamic routing mechanism to adapt an optimal path, as well as identification of lossy channel becomes due to congestion.  ...  These multiple paths are ultimately figured out using dynamic routing, which not only improves performance but also provides reliability, especially in presence of lossy channels.  ...  Mesh routers can be designed on the basis of embedded systems or dedicated computer systems. They can also be developed based on laptop/desktop PCs or generalpurpose computer systems.  ... 
doi:10.19026/rjit.5.5793 fatcat:p7v6ughx3ndwfeclgqayjxzfli

Using a DSL and Fine-Grained Model Transformations to Explore the Boundaries of Model Verification

M. F. van Amstel, M. G. J. van den Brand, L. J. P. Engelen
2011 2011 Fifth International Conference on Secure Software Integration and Reliability Improvement - Companion  
Traditionally, the state-space explosion problem in model checking is handled by applying abstractions and simplifications to the model that needs to be verified.  ...  ACKNOWLEDGEMENTS We would like to thank Anton Wijs and Dragan Bošnački for their valuable feedback on our work.  ...  This project is partially supported by the Netherlands Ministry of Economic Affairs under the Embedded Systems Institute (BSIK03021) program.  ... 
doi:10.1109/ssiri-c.2011.26 dblp:conf/ssiri/AmstelBE11 fatcat:7uk46jwl5ncjfhyxohl3dm5lhy

Symbolic Verification of Communicating Systems with Probabilistic Message Losses: Liveness and Fairness [chapter]

C. Baier, N. Bertrand, Ph. Schnoebelen
2006 Lecture Notes in Computer Science  
The techniques extend smoothly to questions where fairness restrictions are imposed on the schedulers.  ...  NPLCS's are a new model for nondeterministic channel systems where unreliable communication is modeled by probabilistic message losses.  ...  However, in lossy systems, arbitrary messages can be lost.  ... 
doi:10.1007/11888116_17 fatcat:q3cnl2ejnfe4rbdpltbpyw4due

Verification of Flat FIFO Systems [article]

Alain Finkel, M. Praveen
2020 arXiv   pre-print
We also show that reachability is NP-complete for flat lossy FIFO machines and for flat front-lossy FIFO machines.  ...  Our results lay the theoretical foundations and open the way to build a verification tool for (general) FIFO machines based on analysis of flat sub-machines.  ...  But real systems of FIFO systems are often not reduced to an unique FIFO machine. Let us show how results on flat FIFO machines can be used to verify systems of communicating FIFO machines.  ... 
arXiv:1908.07282v5 fatcat:6ruu3mg2gzggldlksyywhthbki
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