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| Author | Mancini, T. ; Mari, F.; Massini, A.; Melatti, I.; Salvo, I.; Tronci, E. | ||||
| Title | On minimising the maximum expected verification time | Type | Journal Article | ||
| Year | 2017 | Publication | Information Processing Letters | Abbreviated Journal | |
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| Call Number | Sapienza @ mari @ | Serial | 163 | ||
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| Author | Mancini, T.; Mari, F.; Melatti, I.; Salvo, I.; Tronci, E.; Gruber, J.K.; Hayes, B.; Prodanovic, M.; Elmegaard, L. | ||||
| Title | User Flexibility Aware Price Policy Synthesis for Smart Grids | Type | Conference Article | ||
| Year | 2015 | Publication | Digital System Design (DSD), 2015 Euromicro Conference on | Abbreviated Journal | |
| Volume | Issue | Pages | 478-485 | ||
| Keywords | Contracts; Current measurement; Load management; Power demand; Power measurement; State estimation; Substations; Grid State Estimation; Peak Shaving; Policy Robustness Verification; Price Policy Synthesis | ||||
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| Call Number | Sapienza @ preissler @ Mancini_etal2015_3 | Serial | 136 | ||
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| Author | Mancini, T.; Mari, F.; Melatti, I.; Salvo, I.; Tronci, E. | ||||
| Title | An Efficient Algorithm for Network Vulnerability Analysis Under Malicious Attacks | Type | Conference Article | ||
| Year | 2018 | Publication | Foundations of Intelligent Systems – 24th International Symposium, ISMIS 2018, Limassol, Cyprus, October 29-31, 2018, Proceedings | Abbreviated Journal | |
| Volume | Issue | Pages | 302-312 | ||
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| Call Number | MCLab @ davi @ DBLP:conf/ismis/ManciniMMST18 | Serial | 176 | ||
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| Author | Alimguzhin, V.; Mari, F.; Melatti, I.; Salvo, I.; Tronci, E. | ||||
| Title | Linearising Discrete Time Hybrid Systems | Type | Journal Article | ||
| Year | 2017 | Publication | IEEE Transactions on Automatic Control | Abbreviated Journal | |
| Volume | 62 | Issue | 10 | Pages | 5357-5364 |
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| Abstract | Model Based Design approaches for embedded systems aim at generating correct-by-construction control software, guaranteeing that the closed loop system (controller and plant) meets given system level formal specifications. This technical note addresses control synthesis for safety and reachability properties of possibly non-linear discrete time hybrid systems. By means of syntactical transformations that require non-linear terms to be Lipschitz continuous functions, we over-approximate non-linear dynamics with a linear system whose controllers are guaranteed to be controllers of the original system. We evaluate performance of our approach on meaningful control synthesis benchmarks, also comparing it to a state-of-the-art tool. | ||||
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| ISSN | 0018-9286 | ISBN | Medium | ||
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| Call Number | Sapienza @ mari @ ref7902199 | Serial | 164 | ||
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| Author | Alimguzhin, V.; Mari, F.; Melatti, I.; Tronci, E.; Ebeid, E.; Mikkelsen, S.A.; Jacobsen, R.H.; Gruber, J.K.; Hayes, B.; Huerta, F.; Prodanovic, M. | ||||
| Title | A Glimpse of SmartHG Project Test-bed and Communication Infrastructure | Type | Conference Article | ||
| Year | 2015 | Publication | Digital System Design (DSD), 2015 Euromicro Conference on | Abbreviated Journal | |
| Volume | Issue | Pages | 225-232 | ||
| Keywords | Batteries; Control systems; Databases; Production; Sensors; Servers; Smart grids; Grid State Estimation; Peak Shaving; Policy Robustness Verification; Price Policy Synthesis | ||||
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| Call Number | Sapienza @ preissler @ Alimguzhin_etal2015 | Serial | 127 | ||
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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 |
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| Call Number | Sapienza @ melatti @ | Serial | 115 | ||
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| Author | Mancini, Toni; Mari, Federico; Massini, Annalisa; Melatti, Igor; Merli, Fabio; Tronci, Enrico | ||||
| Title | System Level Formal Verification via Model Checking Driven Simulation | Type | Conference Article | ||
| Year | 2013 | Publication | Proceedings of the 25th International Conference on Computer Aided Verification. July 13-19, 2013, Saint Petersburg, Russia | Abbreviated Journal | CAV 2013 |
| Volume | Issue | Pages | 296-312 | ||
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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 | 8044 | Series Issue | Edition | ||
| ISSN | 0302-9743 | ISBN | 978-3-642-39798-1 | Medium | |
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| Call Number | Sapienza @ mari @ | Serial | 113 | ||
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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 | |
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| Notes | Approved |
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| Call Number | Sapienza @ melatti @ | Serial | 111 | ||
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| Author | Alimguzhin, Vadim; Mari, Federico; Melatti, Igor; Salvo, Ivano; Tronci, Enrico | ||||
| Title | Automatic Control Software Synthesis for Quantized Discrete Time Hybrid Systems | Type | Report | ||
| Year | 2012 | Publication | Abbreviated Journal | ||
| Volume | abs/1207.4098 | Issue | Pages | ||
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| Abstract | Many Embedded Systems are indeed Software Based Control Systems, that is control systems whose controller consists of control software running on a microcontroller device. This motivates investigation on Formal Model Based Design approaches for automatic synthesis of embedded systems control software. This paper addresses control software synthesis for discrete time nonlinear systems. We present a methodology to overapproximate the dynamics of a discrete time nonlinear hybrid system H by means of a discrete time linear hybrid system L(H), in such a way that controllers for L(H) are guaranteed to be controllers for H. We present experimental results on the inverted pendulum, a challenging and meaningful benchmark in nonlinear Hybrid Systems control. | ||||
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| Publisher | CoRR, Technical Report | Place of Publication | Editor | ||
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| Call Number | Sapienza @ mari @ | Serial | 103 | ||
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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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| ISSN | 1942-2628 | ISBN | Medium | ||
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| Call Number | Sapienza @ melatti @ | Serial | 108 | ||
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