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Author |
Tronci, Enrico |
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Title |
Automatic Synthesis of Controllers from Formal Specifications |
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1998 |
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Proc of 2nd IEEE International Conference on Formal Engineering Methods (ICFEM) |
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134-143 |
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Many safety critical reactive systems are indeed embedded control systems. Usually a control system can be partitioned into two main subsystems: a controller and a plant. Roughly speaking: the controller observes the state of the plant and sends commands (stimulus) to the plant to achieve predefined goals. We show that when the plant can be modeled as a deterministic finite state system (FSS) it is possible to effectively use formal methods to automatically synthesize the program implementing the controller from the plant model and the given formal specifications for the closed loop system (plant+controller). This guarantees that the controller program is correct by construction. To the best of our knowledge there is no previously published effective algorithm to extract executable code for the controller from closed loop formal specifications. We show practical usefulness of our techniques by giving experimental results on their use to synthesize C programs implementing optimal controllers (OCs) for plants with more than 109 states. |
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Brisbane, Queensland, Australia |
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Sapienza @ mari @ icfem98 |
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52 |
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Author |
Tronci, Enrico |
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Title |
Equational Programming in Lambda-Calculus via SL-Systems. Part 1 |
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1996 |
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Theoretical Computer Science |
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160 |
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1&2 |
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145-184 |
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Sapienza @ mari @ tcs96 |
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54 |
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Author |
Tronci, Enrico |
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Title |
Equational Programming in Lambda-Calculus via SL-Systems. Part 2 |
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1996 |
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Theoretical Computer Science |
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160 |
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1&2 |
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185-216 |
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Sapienza @ mari @ tcs96a |
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55 |
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Author |
Tronci, Enrico |
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Title |
Hardware Verification, Boolean Logic Programming, Boolean Functional Programming |
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1995 |
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Tenth Annual IEEE Symposium on Logic in Computer Science (LICS) |
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408-418 |
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One of the main obstacles to automatic verification of finite state systems (FSSs) is state explosion. In this respect automatic verification of an FSS M using model checking and binary decision diagrams (BDDs) has an intrinsic limitation: no automatic global optimization of the verification task is possible until a BDD representation for M is generated. This is because systems and specifications are defined using different languages. To perform global optimization before generating a BDD representation for M we propose to use the same language to define systems and specifications. We show that first order logic on a Boolean domain yields an efficient functional programming language that can be used to represent, specify and automatically verify FSSs, e.g. on a SUN Sparc Station 2 we were able to automatically verify a 64 bit commercial multiplier. |
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IEEE Computer Society |
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San Diego, California |
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Call Number |
Sapienza @ mari @ lics95 |
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56 |
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Author |
Tronci, Enrico |
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Title |
Defining Data Structures via Böhm-Out |
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1995 |
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J. Funct. Program. |
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5 |
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1 |
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51-64 |
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We show that any recursively enumerable subset of a data structure can be regarded as the solution set to a B??hm-out problem. |
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yes |
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Call Number |
Sapienza @ mari @ jfp95 |
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57 |
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Author |
Tronci, Enrico |
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Title |
Equational Programming in lambda-calculus |
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Conference Article |
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Year |
1991 |
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Sixth Annual IEEE Symposium on Logic in Computer Science (LICS) |
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191-202 |
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IEEE Computer Society |
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Amsterdam, The Netherlands |
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yes |
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Sapienza @ mari @ lics91 |
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58 |
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Böhm, Corrado; Tronci, Enrico |
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Title |
About Systems of Equations, X-Separability, and Left-Invertibility in the lambda-Calculus |
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1991 |
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Inf. Comput. |
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90 |
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1 |
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1-32 |
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yes |
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Sapienza @ mari @ infcomp91 |
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59 |
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Author |
Piperno, Adolfo; Tronci, Enrico |
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Title |
Regular Systems of Equations in λ-calculus |
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Journal Article |
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1990 |
Publication |
Int. J. Found. Comput. Sci. |
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1 |
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3 |
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325-340 |
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Many problems arising in equational theories like Lambda-calculus and Combinatory Logic can be expressed by combinatory equations or systems of equations. However, the solvability problem for an arbitrarily given class of systems is in general undecidable. In this paper we shall focus our attention on a decidable class of systems, which will be called regular systems, and we shall analyse some classical problems and well-known properties of Lambda-calculus that can be described and solved by means of regular systems. The significance of such class will be emphasized showing that for slight extensions of it the solvability problem turns out to be undecidable. |
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yes |
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Call Number |
Sapienza @ mari @ ijfcs90 |
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60 |
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Author |
Piperno, Adolfo; Tronci, Enrico |
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Title |
Regular Systems of Equations in λ-calculus |
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1989 |
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Ictcs |
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Many problems arising in equational theories like Lambda-calculus and Combinatory Logic can be expressed by combinatory equations or systems of equations. However, the solvability problem for an arbitrarily given class of systems is in general undecidable. In this paper we shall focus our attention on a decidable class of systems, which will be called regular systems, and we shall analyse some classical problems and well-known properties of Lambda-calculus that can be described and solved by means of regular systems. The significance of such class will be emphasized showing that for slight extensions of it the solvability problem turns out to be undecidable. |
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Mantova - Italy |
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Sapienza @ mari @ ictcs89 |
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61 |
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Author |
Böhm, Corrado; Piperno, Adolfo; Tronci, Enrico |
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Title |
Solving Equations in λ-calculus |
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1989 |
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Proc. of: Logic Colloquium 88 |
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Padova - Italy |
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Call Number |
Sapienza @ mari @ logic-colloquium-88 |
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62 |
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