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	Author	Della Penna, Giuseppe; Magazzeni, Daniele; Tofani, Alberto; Intrigila, Benedetto; Melatti, Igor; Tronci, Enrico
	Title	Automated Generation of Optimal Controllers through Model Checking Techniques			Type	Conference Article
	Year	2006	Publication	Icinco-Icso	Abbreviated Journal
	Volume		Issue		Pages	26-33
	Keywords
	Abstract	We present a methodology for the synthesis of controllers, which exploits (explicit) model checking techniques. That is, we can cope with the systematic exploration of a very large state space. This methodology can be applied to systems where other approaches fail. In particular, we can consider systems with an highly non-linear dynamics and lacking a uniform mathematical description (model). We can also consider situations where the required control action cannot be specified as a local action, and rather a kind of planning is required. Our methodology individuates first a raw optimal controller, then extends it to obtain a more robust one. A case study is presented which considers the well known truck-trailer obstacle avoidance parking problem, in a parking lot with obstacles on it. The complex non-linear dynamics of the truck-trailer system, within the presence of obstacles, makes the parking problem extremely hard. We show how, by our methodology, we can obtain optimal controllers with different degrees of robustness.
	Address
	Corporate Author				Thesis
	Publisher	INSTICC Press	Place of Publication		Editor	Andrade-Cetto, J.; Ferrier, J.-L.; Pereira, J. M. C. D.; Filipe, J.
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	972-8865-59-7	ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	yes
	Call Number	Sapienza @ mari @ Dimmtt06			Serial	79
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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
	Keywords
	Abstract
	Address
	Corporate Author				Thesis
	Publisher	Springer - Verlag	Place of Publication		Editor
	Language		Summary Language		Original Title
	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	no
	Call Number	Sapienza @ melatti @			Serial	112
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	Author	Della Penna, Giuseppe; Intrigila, Benedetto; Melatti, Igor; Tronci, Enrico
	Title	Exploiting Hub States in Automatic Verification			Type	Conference Article
	Year	2005	Publication	Automated Technology for Verification and Analysis: Third International Symposium, ATVA 2005, Taipei, Taiwan, October 4-7, 2005, Proceedings	Abbreviated Journal
	Volume		Issue		Pages	54-68
	Keywords
	Abstract	In this paper we present a new algorithm to counteract state explosion when using Explicit State Space Exploration to verify protocol-like systems. We sketch the implementation of our algorithm within the Caching Mur$\varphi$ verifier and give experimental results showing its effectiveness. We show experimentally that, when memory is a scarce resource, our algorithm improves on the time performances of Caching Mur$\varphi$ verification algorithm, saving between 16% and 68% (45% on average) in computation time.
	Address
	Corporate Author				Thesis
	Publisher	Springer	Place of Publication		Editor	D.A. Peled; Y.-K. Tsay
	Language		Summary Language		Original Title
	Series Editor		Series Title	Lecture Notes in Computer Science	Abbreviated Series Title
	Series Volume	3707	Series Issue		Edition
	ISSN	3-540-29209-8	ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	yes
	Call Number	Sapienza @ mari @ Dimt04			Serial	83
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	Author	Della Penna, Giuseppe; Intrigila, Benedetto; Melatti, Igor; Tronci, Enrico; Venturini Zilli, Marisa
	Title	Finite Horizon Analysis of Stochastic Systems with the Mur$\varphi$ Verifier			Type	Conference Article
	Year	2003	Publication	Theoretical Computer Science, 8th Italian Conference, ICTCS 2003, Bertinoro, Italy, October 13-15, 2003, Proceedings	Abbreviated Journal
	Volume		Issue		Pages	58-71
	Keywords
	Abstract	Many reactive systems are actually Stochastic Processes. Automatic analysis of such systems is usually very difficult thus typically one simplifies the analysis task by using simulation or by working on a simplified model (e.g. a Markov Chain). We present a Finite Horizon Probabilistic Model Checking approach which essentially can handle the same class of stochastic processes of a typical simulator. This yields easy modeling of the system to be analyzed together with formal verification capabilities. Our approach is based on a suitable disk based extension of the Mur$\varphi$ verifier. Moreover we present experimental results showing effectiveness of our approach.
	Address
	Corporate Author				Thesis
	Publisher	Springer	Place of Publication		Editor	Blundo, C.; Laneve, C.
	Language		Summary Language		Original Title
	Series Editor		Series Title	Lecture Notes in Computer Science	Abbreviated Series Title
	Series Volume	2841	Series Issue		Edition
	ISSN	3-540-20216-1	ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	yes
	Call Number	Sapienza @ mari @ DIMTZ03c			Serial	90
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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
	Keywords
	Abstract
	Address
	Corporate Author				Thesis
	Publisher	Springer - Verlag	Place of Publication		Editor
	Language		Summary Language		Original Title
	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	Bobbio, Andrea; Ciancamerla, Ester; Di Blasi, Saverio; Iacomini, Alessandro; Mari, Federico; Melatti, Igor; Minichino, Michele; Scarlatti, Alessandro; Tronci, Enrico; Terruggia, Roberta; Zendri, Emilio
	Title	Risk analysis via heterogeneous models of SCADA interconnecting Power Grids and Telco networks			Type	Conference Article
	Year	2009	Publication	Proceedings of Fourth International Conference on Risks and Security of Internet and Systems (CRiSIS)	Abbreviated Journal
	Volume		Issue		Pages	90-97
	Keywords
	Abstract	The automation of power grids by means of supervisory control and data acquisition (SCADA) systems has led to an improvement of power grid operations and functionalities but also to pervasive cyber interdependencies between power grids and telecommunication networks. Many power grid services are increasingly depending upon the adequate functionality of SCADA system which in turn strictly depends on the adequate functionality of its communication infrastructure. We propose to tackle the SCADA risk analysis by means of different and heterogeneous modeling techniques and software tools. We demonstrate the applicability of our approach through a case study on an actual SCADA system for an electrical power distribution grid. The modeling techniques we discuss aim at providing a probabilistic dependability analysis, followed by a worst case analysis in presence of malicious attacks and a real-time performance evaluation.
	Address
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN		ISBN		Medium
	Area		Expedition		Conference	Fourth International Conference on Risks and Security of Internet and Systems (CRiSIS)
	Notes				Approved	yes
	Call Number	Sapienza @ mari @ crisis09			Serial	17
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	Author	Mancini, T.; Mari, F.; Massini, A.; Melatti, I.; Tronci, E.
	Title	SyLVaaS: System Level Formal Verification as a Service			Type	Journal Article
	Year	2016	Publication	Fundamenta Informaticae	Abbreviated Journal
	Volume	149	Issue	1-2	Pages	101-132
	Keywords
	Abstract
	Address
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN		ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	no
	Call Number	MCLab @ davi @ DBLP:journals/fuin/ManciniMMMT16			Serial	160
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	Author	Della Penna, Giuseppe; Magazzeni, Daniele; Tofani, Alberto; Intrigila, Benedetto; Melatti, Igor; Tronci, Enrico
	Title	Automated Generation Of Optimal Controllers Through Model Checking Techniques			Type	Book Chapter
	Year	2008	Publication	Informatics in Control Automation and Robotics. Selected Papers from ICINCO 2006	Abbreviated Journal
	Volume		Issue		Pages	107-119
	Keywords
	Abstract
	Address
	Corporate Author				Thesis
	Publisher	Springer	Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN		ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	yes
	Call Number	Sapienza @ mari @ Dmtmt08			Serial	26
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	Author	Melatti, Igor; Palmer, Robert; Sawaya, Geoffrey; Yang, Yu; Kirby, Robert Mike; Gopalakrishnan, Ganesh
	Title	Parallel and Distributed Model Checking in Eddy			Type	Conference Article
	Year	2006	Publication	Model Checking Software, 13th International SPIN Workshop, Vienna, Austria, March 30 – April 1, 2006, Proceedings	Abbreviated Journal
	Volume		Issue		Pages	108-125
	Keywords
	Abstract	Model checking of safety properties can be scaled up by pooling the CPU and memory resources of multiple computers. As compute clusters containing 100s of nodes, with each node realized using multi-core (e.g., 2) CPUs will be widespread, a model checker based on the parallel (shared memory) and distributed (message passing) paradigms will more efficiently use the hardware resources. Such a model checker can be designed by having each node employ two shared memory threads that run on the (typically) two CPUs of a node, with one thread responsible for state generation, and the other for efficient communication, including (i) performing overlapped asynchronous message passing, and (ii) aggregating the states to be sent into larger chunks in order to improve communication network utilization. We present the design details of such a novel model checking architecture called Eddy. We describe the design rationale, details of how the threads interact and yield control, exchange messages, as well as detect termination. We have realized an instance of this architecture for the Murphi modeling language. Called Eddy_Murphi, we report its performance over the number of nodes as well as communication parameters such as those controlling state aggregation. Nearly linear reduction of compute time with increasing number of nodes is observed. Our thread task partition is done in such a way that it is modular, easy to port across different modeling languages, and easy to tune across a variety of platforms.
	Address
	Corporate Author				Thesis
	Publisher	Springer - Verlag	Place of Publication		Editor	Valmari, A.
	Language		Summary Language		Original Title
	Series Editor		Series Title	Lecture Notes in Computer Science	Abbreviated Series Title
	Series Volume	3925	Series Issue		Edition
	ISSN	0302-9743	ISBN	978-3-540-33102-5	Medium
	Area		Expedition		Conference
	Notes				Approved	yes
	Call Number	Sapienza @ mari @ Mpsykg06			Serial	81
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	Author	Della Penna, Giuseppe; Intrigila, Benedetto; Melatti, Igor; Minichino, Michele; Ciancamerla, Ester; Parisse, Andrea; Tronci, Enrico; Venturini Zilli, Marisa
	Title	Automatic Verification of a Turbogas Control System with the Mur$\varphi$ Verifier			Type	Conference Article
	Year	2003	Publication	Hybrid Systems: Computation and Control, 6th International Workshop, HSCC 2003 Prague, Czech Republic, April 3-5, 2003, Proceedings	Abbreviated Journal
	Volume		Issue		Pages	141-155
	Keywords
	Abstract	Automatic analysis of Hybrid Systems poses formidable challenges both from a modeling as well as from a verification point of view. We present a case study on automatic verification of a Turbogas Control System (TCS) using an extended version of the Mur$\varphi$ verifier. TCS is the heart of ICARO, a 2MW Co-generative Electric Power Plant. For large hybrid systems, as TCS is, the modeling effort accounts for a significant part of the whole verification activity. In order to ease our modeling effort we extended the Mur$\varphi$ verifier by importing the C language long double type (finite precision real numbers) into it. We give experimental results on running our extended Mur$\varphi$ on our TCS model. For example using Mur$\varphi$ we were able to compute an admissible range of values for the variation speed of the user demand of electric power to the turbogas.
	Address
	Corporate Author				Thesis
	Publisher	Springer	Place of Publication		Editor	Maler, O.; Pnueli, A.
	Language		Summary Language		Original Title
	Series Editor		Series Title	Lecture Notes in Computer Science	Abbreviated Series Title
	Series Volume	2623	Series Issue		Edition
	ISSN	3-540-00913-2	ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	yes
	Call Number	Sapienza @ mari @ Dimmcptz03			Serial	88
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