Communicating sequential processes
Communicating sequential processes
A timed model for communicating sequential processes
Theoretical Computer Science - Thirteenth International Colloquim on Automata, Languages and Programming, Renne
Programming from specifications (2nd ed.)
Programming from specifications (2nd ed.)
Using Z: specification, refinement, and proof
Using Z: specification, refinement, and proof
Model-checking CSP-Z: strategy, tool support and industrial application
Science of Computer Programming - Specical issue on fundamental approaches to software engineering
The Theory and Practice of Concurrency
The Theory and Practice of Concurrency
Concurrent and Real Time Systems: The CSP Approach
Concurrent and Real Time Systems: The CSP Approach
Towards a Time Model for Circus
ICFEM '02 Proceedings of the 4th International Conference on Formal Engineering Methods: Formal Methods and Software Engineering
A Giotto-Based Helicopter Control System
EMSOFT '02 Proceedings of the Second International Conference on Embedded Software
ZB '02 Proceedings of the 2nd International Conference of B and Z Users on Formal Specification and Development in Z and B
ICFEM '00 Proceedings of the 3rd IEEE International Conference on Formal Engineering Methods
Angelic nondeterminism in the unifying theories of programming
Formal Aspects of Computing
Generating customized verifiers for automatically generated code
GPCE '08 Proceedings of the 7th international conference on Generative programming and component engineering
Formal Aspects of Computing
Mechanised Translation of Control Law Diagrams into Circus
IFM '09 Proceedings of the 7th International Conference on Integrated Formal Methods
A process algebraic framework for specification and validation of real-time systems
Formal Aspects of Computing
Modelling and analysis of real time and embedded systems: using UML
MoDELS'06 Proceedings of the 2006 international conference on Models in software engineering
Stepwise development of simulink models using the refinement calculus framework
ICTAC'07 Proceedings of the 4th international conference on Theoretical aspects of computing
From control law diagrams to Ada via Circus
Formal Aspects of Computing
A framework for specification and validation of real-time systems using circus actions
ICTAC'04 Proceedings of the First international conference on Theoretical Aspects of Computing
Control law diagrams in circus
FM'05 Proceedings of the 2005 international conference on Formal Methods
Modular verification of safe online-reconfiguration for proactive components in mechatronic UML
MoDELS'05 Proceedings of the 2005 international conference on Satellite Events at the MoDELS
Model-based safety analysis of simulink models using SCADE design verifier
SAFECOMP'05 Proceedings of the 24th international conference on Computer Safety, Reliability, and Security
Isabelle/circus: a process specification and verification environment
VSTTE'12 Proceedings of the 4th international conference on Verified Software: theories, tools, experiments
A concurrent language for refinement
IW-FM'01 Proceedings of the 5th Irish conference on Formal Methods
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Simulink is widely used by engineers to provide graphical specifications of control laws; its frequent use to specify safety-critical systems has motivated work on formal modelling and analysis of Simulink diagrams. The work that we present here is complementary: it targets verification of implementations by providing a refinement-based model. We use CircusTime, a timed version of the Circus notation that combines Z, CSP, and Morgan's refinement calculus with a time model, and which is firmly based on Hoare & He's Unifying Theories of Programming. We present a modelling approach that formalises the simulation time model that is routinely used for analysis. It is distinctive in that we use a refinement-based notation and capture functionality, concurrency, and time. The models produced in this way, however, are not useful for program verification, due to an idealised simulation time model; therefore, we describe how such models can be used to construct more realistic models. This novel modelling approach caters for assumptions about the programming environment, and clearly establishes the relationship between the simulation and implementation models.