The temporal logic of reactive and concurrent systems
The temporal logic of reactive and concurrent systems
Real-time logics: complexity and expressiveness
Information and Computation - Special issue: selections from 1990 IEEE symposium on logic in computer science
Requirements specifications for hybrid systems
Proceedings of the DIMACS/SYCON workshop on Hybrid systems III : verification and control: verification and control
Interval and point-based approaches to hybrid system verification
Interval and point-based approaches to hybrid system verification
Verification in Continuous Time by Discrete Reasoning
AMAST '95 Proceedings of the 4th International Conference on Algebraic Methodology and Software Technology
ICALP '92 Proceedings of the 19th International Colloquium on Automata, Languages and Programming
Hybrid Systems
An Extended Duration Calculus for Hybrid Real-Time Systems
Hybrid Systems
Towards Refining Temporal Specifications into Hybrid Systems
Hybrid Systems
NUSMV: A New Symbolic Model Verifier
CAV '99 Proceedings of the 11th International Conference on Computer Aided Verification
Proceedings of the Real-Time: Theory in Practice, REX Workshop
LICS '96 Proceedings of the 11th Annual IEEE Symposium on Logic in Computer Science
Formal analysis of hardware requirements
Proceedings of the 43rd annual Design Automation Conference
Model Checking Data-Dependent Real-Time Properties of the European Train Control System
FMCAD '06 Proceedings of the Formal Methods in Computer Aided Design
Abstractions for hybrid systems
Formal Methods in System Design
A Coverage Analysis for Safety Property Lists
FMCAD '07 Proceedings of the Formal Methods in Computer Aided Design
Multi-Level Assertion-Based Design
MEMOCODE '07 Proceedings of the 5th IEEE/ACM International Conference on Formal Methods and Models for Codesign
Differential Dynamic Logic for Verifying Parametric Hybrid Systems
TABLEAUX '07 Proceedings of the 16th international conference on Automated Reasoning with Analytic Tableaux and Related Methods
Automated Verification of Dense-Time MTL Specifications Via Discrete-Time Approximation
FM '08 Proceedings of the 15th international symposium on Formal Methods
CAV '08 Proceedings of the 20th international conference on Computer Aided Verification
Object Models with Temporal Constraints
SEFM '08 Proceedings of the 2008 Sixth IEEE International Conference on Software Engineering and Formal Methods
Time-Progress Evaluation for Dense-Time Automata with Concave Path Conditions
ATVA '08 Proceedings of the 6th International Symposium on Automated Technology for Verification and Analysis
Checking temporal properties of discrete, timed and continuous behaviors
Pillars of computer science
CHARME'05 Proceedings of the 13 IFIP WG 10.5 international conference on Correct Hardware Design and Verification Methods
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
Abstract Model Checking without Computing the Abstraction
FM '09 Proceedings of the 2nd World Congress on Formal Methods
European Train Control System: A Case Study in Formal Verification
ICFEM '09 Proceedings of the 11th International Conference on Formal Engineering Methods: Formal Methods and Software Engineering
OthelloPlay: a plug-in based tool for requirement formalization and validation
Proceedings of the 1st Workshop on Developing Tools as Plug-ins
Hierarchical reasoning for the verification of parametric systems
IJCAR'10 Proceedings of the 5th international conference on Automated Reasoning
Towards a notion of unsatisfiable and unrealizable cores for LTL
Science of Computer Programming
Validation of requirements for hybrid systems: A formal approach
ACM Transactions on Software Engineering and Methodology (TOSEM)
Hierarchical reasoning and model generation for the verification of parametric hybrid systems
CADE'13 Proceedings of the 24th international conference on Automated Deduction
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The importance of requirements for the whole development flow calls for strong validation techniques based on formal methods. In the case of discrete systems, some approaches based on temporal logic satisfiability are gaining increasing momentum. However, in many real-world domains (e.g. railways signaling), the requirements constrain the temporal evolution of both discrete and continuous variables. These hybrid domains pose substantial problems: on one side, a continuous domain requires very expressive formal languages; on the other side, the resulting expressiveness results in highly intractable problems. In this paper, we address the problem of requirements validation for real-world hybrid domains, and present two main contributions. First, we propose the HRELTL logic, that extends the Linear-time Temporal Logic with Regular Expressions (RELTL) with hybrid aspects. Second, we show that the satisfiability problem for the linear fragment can be reduced to an equi-satisfiable problem for RELTL. This makes it possible to use automatic (albeit incomplete) techniques based on Bounded Model Checking and on Satisfiability Modulo Theory. The choice of the language is inspired by and validated within a project funded by the European Railway Agency, on the formalization and validation of the European Train Control System specifications. The activity showed that most of requirements can be formalized into HRELTL, and an experimental evaluation confirmed the practicality of the analyses.