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Author |
Della Penna, Giuseppe; Intrigila, Benedetto; Tronci, Enrico; Venturini Zilli, Marisa |
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Title |
Exploiting Transition Locality in the Disk Based Mur$\varphi$ Verifier |
Type |
Conference Article |
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Year |
2002 |
Publication |
4th International Conference on Formal Methods in Computer-Aided Design (FMCAD) |
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Pages |
202-219 |
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Abstract |
The main obstruction to automatic verification of Finite State Systems is the huge amount of memory required to complete the verification task (state explosion). This motivates research on distributed as well as disk based verification algorithms. In this paper we present a disk based Breadth First Explicit State Space Exploration algorithm as well as an implementation of it within the Mur$\varphi$ verifier. Our algorithm exploits transition locality (i.e. the statistical fact that most transitions lead to unvisited states or to recently visited states) to decrease disk read accesses thus reducing the time overhead due to disk usage. A disk based verification algorithm for Mur$\varphi$ has been already proposed in the literature. To measure the time speed up due to locality exploitation we compared our algorithm with such previously proposed algorithm. Our experimental results show that our disk based verification algorithm is typically more than 10 times faster than such previously proposed disk based verification algorithm. To measure the time overhead due to disk usage we compared our algorithm with RAM based verification using the (standard) Mur$\varphi$ verifier with enough memory to complete the verification task. Our experimental results show that even when using 1/10 of the RAM needed to complete verification, our disk based algorithm is only between 1.4 and 5.3 times (3 times on average) slower than (RAM) Mur$\varphi$ with enough RAM memory to complete the verification task at hand. Using our disk based Mur$\varphi$ we were able to complete verification of a protocol with about $10^9$ reachable states. This would require more than 5 gigabytes of RAM using RAM based Mur$\varphi$. |
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Springer |
Place of Publication |
Portland, OR, USA |
Editor |
Aagaard, M.; O'Leary, J.W. |
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Series Title |
Lecture Notes in Computer Science |
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Series Volume  |
2517 |
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ISSN |
3-540-00116-6 |
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yes |
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Call Number |
Sapienza @ mari @ fmcad02 |
Serial |
41 |
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Author |
Gribaudo, Marco; Horváth, Andras; Bobbio, Andrea; Tronci, Enrico; Ciancamerla, Ester; Minichino, Michele |
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Title |
Model-Checking Based on Fluid Petri Nets for the Temperature Control System of the ICARO Co-generative Plant |
Type |
Conference Article |
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Year |
2002 |
Publication |
21st International Conference on Computer Safety, Reliability and Security (SAFECOMP) |
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Pages |
273-283 |
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The modeling and analysis of hybrid systems is a recent and challenging research area which is actually dominated by two main lines: a functional analysis based on the description of the system in terms of discrete state (hybrid) automata (whose goal is to ascertain for conformity and reachability properties), and a stochastic analysis (whose aim is to provide performance and dependability measures). This paper investigates a unifying view between formal methods and stochastic methods by proposing an analysis methodology of hybrid systems based on Fluid Petri Nets (FPN). It is shown that the same FPN model can be fed to a functional analyser for model checking as well as to a stochastic analyser for performance evaluation. We illustrate our approach and show its usefulness by applying it to a “real world†hybrid system: the temperature control system of a co-generative plant. |
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Springer |
Place of Publication |
Catania, Italy |
Editor |
Anderson, S.; Bologna, S.; Felici, M. |
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Series Title |
Lecture Notes in Computer Science |
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Series Volume |
2434 |
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ISSN |
3-540-44157-3 |
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yes |
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Call Number |
Sapienza @ mari @ safecomp02 |
Serial |
42 |
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Author |
Tronci, Enrico; Della Penna, Giuseppe; Intrigila, Benedetto; Venturini Zilli, Marisa |
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Title |
Exploiting Transition Locality in Automatic Verification |
Type |
Conference Article |
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Year |
2001 |
Publication |
11th IFIP WG 10.5 Advanced Research Working Conference on Correct Hardware Design and Verification Methods (CHARME) |
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Pages |
259-274 |
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In this paper we present an algorithm to contrast state explosion when using Explicit State Space Exploration to verify protocols. We show experimentally that protocols exhibit transition locality. We present a verification algorithm that exploits transition locality as well as an implementation of it within the Mur$\varphi$ verifier. Our algorithm is compatible with all Breadth First (BF) optimization techniques present in the Mur$\varphi$ verifier and it is by no means a substitute for any of them. In fact, since our algorithm trades space with time, it is typically most useful when one runs out of memory and has already used all other state reduction techniques present in the Mur$\varphi$ verifier. Our experimental results show that using our approach we can typically save more than 40% of RAM with an average time penalty of about 50% when using (Mur$\varphi$) bit compression and 100% when using bit compression and hash compaction. |
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Springer |
Place of Publication |
Livingston, Scotland, UK |
Editor |
Margaria, T.; Melham, T.F. |
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Series Title |
Lecture Notes in Computer Science |
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Series Volume |
2144 |
Series Issue |
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Edition |
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ISSN |
3-540-42541-1 |
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yes |
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Call Number |
Sapienza @ mari @ charme01 |
Serial |
44 |
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Author |
Fantechi, Alessandro; Gnesi, Stefania; Mazzanti, Franco; Pugliese, Rosario; Tronci, Enrico |
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Title |
A Symbolic Model Checker for ACTL |
Type |
Conference Article |
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Year |
1998 |
Publication |
International Workshop on Current Trends in Applied Formal Method (FM-Trends) |
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Pages |
228-242 |
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We present SAM, a symbolic model checker for ACTL, the action-based version of CTL. SAM relies on implicit representations of Labeled Transition Systems (LTSs), the semantic domain for ACTL formulae, and uses symbolic manipulation algorithms. SAM has been realized by translating (networks of) LTSs and, possibly recursive, ACTL formulae into BSP (Boolean Symbolic Programming), a programming language aiming at defining computations on boolean functions, and by using the BSP interpreter to carry out computations (i.e. verifications). |
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Springer |
Place of Publication |
Boppard, Germany |
Editor |
Hutter, D.; Stephan, W.; Traverso, P.; Ullmann, M. |
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Series Title |
Lecture Notes in Computer Science |
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Series Volume |
1641 |
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ISSN |
3-540-66462-9 |
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Approved |
yes |
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Call Number |
Sapienza @ mari @ fm-trends98 |
Serial |
51 |
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Author |
Pugliese, Rosario; Tronci, Enrico |
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Title |
Automatic Verification of a Hydroelectric Power Plant |
Type |
Conference Article |
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Year |
1996 |
Publication |
Third International Symposium of Formal Methods Europe (FME), Co-Sponsored by IFIP WG 14.3 |
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Pages |
425-444 |
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We analyze the specification of a hydroelectric power plant by ENEL (the Italian Electric Company). Our goal is to show that for the specification of the plant (its control system in particular) some given properties hold. We were provided with an informal specification of the plant. From such informal specification we wrote a formal specification using the CCS/Meije process algebra formalism. We defined properties using μ-calculus. Automatic verification was carried out using model checking. This was done by translating our process algebra definitions (the model) and μ-calculus formulas into BDDs. In this paper we present the informal specification of the plant, its formal specification, some of the properties we verified and experimental results. |
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Springer |
Place of Publication |
Oxford, UK |
Editor |
Gaudel, M.-C.; Woodcock, J. |
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Series Title |
Lecture Notes in Computer Science |
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Series Volume |
1051 |
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ISSN |
3-540-60973-3 |
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yes |
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Call Number |
Sapienza @ mari @ fme96 |
Serial |
53 |
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Author |
Tronci, Enrico |
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Title |
Introductory Paper |
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Journal Article |
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Year |
2006 |
Publication |
Sttt |
Abbreviated Journal |
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Volume |
8 |
Issue |
4-5 |
Pages |
355-358 |
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Abstract |
In today’s competitive market designing of digital systems (hardware as well as software) faces tremendous challenges. In fact, notwithstanding an ever decreasing project budget, time to market and product lifetime, designers are faced with an ever increasing system complexity and customer expected quality. The above situation calls for better and better formal verification techniques at all steps of the design flow. This special issue is devoted to publishing revised versions of contributions first presented at the 12th Advanced Research Working Conference on Correct Hardware Design and Verification Methods (CHARME) held 21–24 October 2003 in L’Aquila, Italy. Authors of well regarded papers from CHARME’03 were invited to submit to this special issue. All papers included here have been suitably extended and have undergone an independent round of reviewing. |
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yes |
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Call Number |
Sapienza @ mari @ sttt06 |
Serial |
30 |
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Author |
Della Penna, Giuseppe; Magazzeni, Daniele; Tofani, Alberto; Intrigila, Benedetto; Melatti, Igor; Tronci, Enrico |
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Title |
Automated Generation Of Optimal Controllers Through Model Checking Techniques |
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Book Chapter |
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Year |
2008 |
Publication |
Informatics in Control Automation and Robotics. Selected Papers from ICINCO 2006 |
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107-119 |
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Springer |
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yes |
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Call Number |
Sapienza @ mari @ Dmtmt08 |
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26 |
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Author |
Della Penna, Giuseppe; Tofani, Alberto; Pecorari, Marcello; Raparelli, Orazio; Intrigila, Benedetto; Melatti, Igor; Tronci, Enrico |
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Title |
A Case Study on Automated Generation of Integration Tests |
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Conference Article |
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Year |
2006 |
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Fdl |
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278-284 |
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978-3-00-019710-9 |
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yes |
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Call Number |
Sapienza @ mari @ Dtprimt06 |
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27 |
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Author |
Bartolini, Novella; Tronci, Enrico |
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Title |
On Optimizing Service Availability of an Internet Based Architecture for Infrastructure Protection |
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2006 |
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Cnip |
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Sapienza @ mari @ Bt06 |
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28 |
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Author |
Cecconi, Michele; Tronci, Enrico |
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Title |
Requirements Formalization and Validation for a Telecommunication Equipment Protection Switcher |
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Conference Article |
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Year |
2000 |
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Hase |
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IEEE Computer Society |
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0-7695-0927-4 |
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yes |
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Call Number |
Sapienza @ mari @ CeTro00 |
Serial |
29 |
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