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| Author | Mari, Federico; Melatti, Igor; Salvo, Ivano; Tronci, Enrico; Alvisi, Lorenzo; Clement, Allen; Li, Harry | ||||
| Title | Model Checking Coalition Nash Equilibria in MAD Distributed Systems | Type | Conference Article | ||
| Year | 2009 | Publication | Stabilization, Safety, and Security of Distributed Systems, 11th International Symposium, SSS 2009, Lyon, France, November 3-6, 2009. Proceedings | Abbreviated Journal | |
| Volume | Issue | Pages | 531-546 | ||
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| Abstract | We present two OBDD based model checking algorithms for the verification of Nash equilibria in finite state mechanisms modeling Multiple Administrative Domains (MAD) distributed systems with possibly colluding agents (coalitions) and with possibly faulty or malicious nodes (Byzantine agents). Given a finite state mechanism, a proposed protocol for each agent and the maximum sizes f for Byzantine agents and q for agents collusions, our model checkers return Pass if the proposed protocol is an ε-f-q-Nash equilibrium, i.e. no coalition of size up to q may have an interest greater than ε in deviating from the proposed protocol when up to f Byzantine agents are present, Fail otherwise. We implemented our model checking algorithms within the NuSMV model checker: the first one explicitly checks equilibria for each coalition, while the second represents symbolically all coalitions. We present experimental results showing their effectiveness for moderate size mechanisms. For example, we can verify coalition Nash equilibria for mechanisms which corresponding normal form games would have more than $5 \times 10^21$ entries. Moreover, we compare the two approaches, and the explicit algorithm turns out to outperform the symbolic one. To the best of our knowledge, no model checking algorithm for verification of Nash equilibria of mechanisms with coalitions has been previously published. | ||||
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| Publisher | Springer | Place of Publication | Editor | Guerraoui, R.; Petit, F. | |
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Lecture Notes in Computer Science | Abbreviated Series Title | ||
| Series Volume | 5873 | Series Issue | Edition | ||
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| Notes | Approved | yes | |||
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Sapienza @ mari @ sss09 | Serial | 19 | ||
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| Author | Mari, Federico; Melatti, Igor; Tronci, Enrico; Finzi, Alberto | ||||
| Title | A multi-hop advertising discovery and delivering protocol for multi administrative domain MANET | Type | Journal Article | ||
| Year | 2013 | Publication | Mobile Information Systems | Abbreviated Journal | Mobile Information Systems |
| Volume | 3 | Issue | 9 | Pages | 261-280 |
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| Publisher | IOS Press | Place of Publication | Editor | ||
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| Series Volume | Series Issue | Edition | |||
| ISSN | 1574-017x (Print) 1875-905X (Online) | ISBN | Medium | ||
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| Notes | Approved | no | |||
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Sapienza @ melatti @ | Serial | 109 | ||
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| Author | Mari, Federico; Melatti, Igor; Salvo, Ivano; Tronci, Enrico | ||||
| Title | Synthesizing Control Software from Boolean Relations | Type | Journal Article | ||
| Year | 2012 | Publication | International Journal on Advances in Software | Abbreviated Journal | Intern. Journal on Advances in SW |
| Volume | vol. 5, nr 3&4 | Issue | Pages | 212-223 | |
| Keywords | Control Software Synthesis; Embedded Systems; Model Checking | ||||
| Abstract | Many software as well digital hardware automatic
synthesis methods define the set of implementations meeting the given system specifications with a boolean relation K. In such a context a fundamental step in the software (hardware) synthesis process is finding effective solutions to the functional equation defined by K. This entails finding a (set of) boolean function(s) F (typically represented using OBDDs, Ordered Binary Decision Diagrams) such that: 1) for all x for which K is satisfiable, K(x, F(x)) = 1 holds; 2) the implementation of F is efficient with respect to given implementation parameters such as code size or execution time. While this problem has been widely studied in digital hardware synthesis, little has been done in a software synthesis context. Unfortunately, the approaches developed for hardware synthesis cannot be directly used in a software context. This motivates investigation of effective methods to solve the above problem when F has to be implemented with software. In this paper, we present an algorithm that, from an OBDD representation for K, generates a C code implementation for F that has the same size as the OBDD for F and a worst case execution time linear in nr, being n = |x| the number of input arguments for functions in F and r the number of functions in F. Moreover, a formal proof of the proposed algorithm correctness is also shown. Finally, we present experimental results showing effectiveness of the proposed algorithm. |
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| Publisher | IARIA | Place of Publication | Editor | Luigi Lavazza | |
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| Series Volume | Series Issue | Edition | |||
| ISSN | 1942-2628 | ISBN | Medium | ||
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| Notes | Approved | yes | |||
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Sapienza @ melatti @ | Serial | 108 | ||
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| Author | Mancini, Toni ; Mari, Federico ; Massini, Annalisa; Melatti, Igor; Tronci, Enrico | ||||
| Title | System Level Formal Verification via Distributed Multi-Core Hardware in the Loop Simulation | Type | Conference Article | ||
| Year | 2014 | Publication | Proc. of the 22nd Euromicro International Conference on Parallel, Distributed and Network-Based Processing | Abbreviated Journal | Euromicro International Conference on Parallel, Distributed and Network-Based Processing |
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| Publisher | IEEE Computer Society | Place of Publication | Editor | ||
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| Notes | Approved | no | |||
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Sapienza @ melatti @ | Serial | 118 | ||
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| Author | Mari, Federico; Melatti, Igor; Salvo, Ivano; Tronci, Enrico | ||||
| Title | Model Based Synthesis of Control Software from System Level Formal Specifications | Type | Journal Article | ||
| Year | 2014 | Publication | ACM TRANSACTIONS ON SOFTWARE ENGINEERING AND METHODOLOGY | Abbreviated Journal | ACM TRANSACTIONS ON SOFTWARE ENGINEERING AND METHODOLOGY |
| Volume | 23 | Issue | 1 | Pages | Article 6 |
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| Publisher | ACM | Place of Publication | Editor | ||
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| Series Volume | Series Issue | Edition | |||
| ISSN | 1049-331X | ISBN | Medium | ||
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| Notes | Approved | no | |||
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Sapienza @ melatti @ | Serial | 110 | ||
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| Author | Alimguzhin, Vadim; Mari, Federico; Melatti, Igor; Salvo, Ivano; Tronci, Enrico | ||||
| Title | On-the-Fly Control Software Synthesis | Type | Conference Article | ||
| Year | 2013 | Publication | Proceedings of International SPIN Symposium on Model Checking of Software (SPIN 2013) | Abbreviated Journal | International SPIN Symposium on Model Checking of Software |
| Volume | Issue | Pages | 61-80 | ||
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| Publisher | Springer - Verlag | Place of Publication | Editor | ||
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| Series Editor | Series Title | Lecture Notes in Computer Science | Abbreviated Series Title | ||
| Series Volume | 7976 | Series Issue | Edition | ||
| ISSN | 0302-9743 | ISBN | 978-3-642-39175-0 | Medium | |
| Area | Expedition | Conference | |||
| Notes | Approved | yes | |||
| Call Number |
Sapienza @ melatti @ | Serial | 111 | ||
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| Author | Alimguzhin, Vadim; Mari, Federico; Melatti, Igor; Salvo, Ivano; Tronci, Enrico | ||||
| Title | A Map-Reduce Parallel Approach to Automatic Synthesis of Control Software | Type | Conference Article | ||
| Year | 2013 | Publication | Proc. of International SPIN Symposium on Model Checking of Software (SPIN 2013) | Abbreviated Journal | International SPIN Symposium on Model Checking of Software |
| Volume | Issue | Pages | 43-60 | ||
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| Publisher | Springer - Verlag | Place of Publication | Editor | ||
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| Series Editor | Series Title | Lecture Notes in Computer Science | Abbreviated Series Title | ||
| Series Volume | 7976 | Series Issue | Edition | ||
| ISSN | 0302-9743 | ISBN | 978-3-642-39175-0 | Medium | |
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| Notes | Approved | no | |||
| Call Number |
Sapienza @ melatti @ | Serial | 112 | ||
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| Author | Mari, Federico; Melatti, Igor; Salvo, Ivano; Tronci, Enrico | ||||
| Title | Linear Constraints and Guarded Predicates as a Modeling Language for Discrete Time Hybrid Systems | Type | Journal Article | ||
| Year | 2013 | Publication | International Journal on Advances in Software | Abbreviated Journal | Intern. Journal on Advances in SW |
| Volume | vol. 6, nr 1&2 | Issue | Pages | 155-169 | |
| Keywords | Model-based software design; Linear predicates; Hybrid systems | ||||
| Abstract | Model based design is particularly appealing in
software based control systems (e.g., embedded software) design, since in such a case system level specifications are much easier to define than the control software behavior itself. In turn, model based design of embedded systems requires modeling both continuous subsystems (typically, the plant) as well as discrete subsystems (the controller). This is typically done using hybrid systems. Mixed Integer Linear Programming (MILP) based abstraction techniques have been successfully applied to automatically synthesize correct-by-construction control software for discrete time linear hybrid systems, where plant dynamics is modeled as a linear predicate over state, input, and next state variables. Unfortunately, MILP solvers require such linear predicates to be conjunctions of linear constraints, which is not a natural way of modeling hybrid systems. In this paper we show that, under the hypothesis that each variable ranges over a bounded interval, any linear predicate built upon conjunction and disjunction of linear constraints can be automatically translated into an equivalent conjunctive predicate. Since variable bounds play a key role in this translation, our algorithm includes a procedure to compute all implicit variable bounds of the given linear predicate. Furthermore, we show that a particular form of linear predicates, namely guarded predicates, are a natural and powerful language to succinctly model discrete time linear hybrid systems dynamics. Finally, we experimentally show the feasibility of our approach on an important and challenging case study taken from the literature, namely the multi-input Buck DC-DC Converter. As an example, the guarded predicate that models (with 57 constraints) a 6-inputs Buck DC-DC Converter is translated in a conjunctive predicate (with 102 linear constraints) in about 40 minutes. |
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| Publisher | IARIA | Place of Publication | Editor | Luigi Lavazza | |
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| ISSN | 1942-2628 | ISBN | Medium | ||
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| Notes | Approved | yes | |||
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Sapienza @ melatti @ | Serial | 115 | ||
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| Author | Tronci, E.; Mancini, T.; Mari, F.; Melatti, I.; Salvo, I.; Prodanovic, M.; Gruber, J. K.; Hayes, B.; Elmegaard, L. | ||||
| Title | Demand-Aware Price Policy Synthesis and Verification Services for Smart Grids | Type | Conference Article | ||
| Year | 2014 | Publication | Proceedings of Smart Grid Communications (SmartGridComm), 2014 IEEE International Conference On | Abbreviated Journal | |
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| Notes | Approved | no | |||
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Sapienza @ melatti @ | Serial | 121 | ||
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| Author | Verzino Giovanni ; Cavaliere, Federico; Mari, Federico; Melatti, Igor; Minei, Giovanni; Salvo, Ivano; Yushtein, Yuri; Tronci, Enrico | ||||
| Title | Model checking driven simulation of sat procedures | Type | Conference Article | ||
| Year | 2012 | Publication | Proceedings of 12th International Conference on Space Operations (SpaceOps 2012) | Abbreviated Journal | International Conference on Space Operations |
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| Notes | Approved | no | |||
| Call Number |
Sapienza @ melatti @ | Serial | 117 | ||
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