The algorithmic analysis of hybrid systems
Theoretical Computer Science - Special issue on hybrid systems
Testing real-time constraints in a process algebraic setting
Proceedings of the 17th international conference on Software engineering
CAV '99 Proceedings of the 11th International Conference on Computer Aided Verification
Design and Synthesis of Synchronization Skeletons Using Branching-Time Temporal Logic
Logic of Programs, Workshop
Defining and translating a "safe" subset of simulink/stateflow into lustre
Proceedings of the 4th ACM international conference on Embedded software
A denotational semantics for stateflow
Proceedings of the 5th ACM international conference on Embedded software
An operational semantics for Stateflow
International Journal on Software Tools for Technology Transfer (STTT)
Real-Time Heart Model for Implantable Cardiac Device Validation and Verification
ECRTS '10 Proceedings of the 2010 22nd Euromicro Conference on Real-Time Systems
Safety-assured development of the GPCA infusion pump software
EMSOFT '11 Proceedings of the ninth ACM international conference on Embedded software
Implementation of timed automata: an issue of semantics or modeling?
FORMATS'05 Proceedings of the Third international conference on Formal Modeling and Analysis of Timed Systems
Code synthesis for timed automata: a comparison using case study
ABZ'10 Proceedings of the Second international conference on Abstract State Machines, Alloy, B and Z
From Verification to Implementation: A Model Translation Tool and a Pacemaker Case Study
RTAS '12 Proceedings of the 2012 IEEE 18th Real Time and Embedded Technology and Applications Symposium
Modeling and verification of a dual chamber implantable pacemaker
TACAS'12 Proceedings of the 18th international conference on Tools and Algorithms for the Construction and Analysis of Systems
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Software-based control of life-critical embedded systems has become increasingly complex, and to a large extent has come to determine the safety of the human being. For example, implantable cardiac pacemakers have over 80,000 lines of code which are responsible for maintaining the heart within safe operating limits. As firmware-related recalls accounted for over 41% of the 600,000 devices recalled in the last decade, there is a need for rigorous model-driven design tools to generate verified code from verified software models. To this effect, we have developed the UPP2SF model-translation tool, which facilitates automatic conversion of verified models (in UPPAAL) to models that may be simulated and tested (in Simulink/Stateflow). We describe the translation rules that ensure correct model conversion, applicable to a large class of models. We demonstrate how UPP2SF is used in the model-driven design of a pacemaker whose model is (a) designed and verified in UPPAAL (using timed automata), (b) automatically translated to Stateflow for simulation-based testing, and then (c) automatically generated into modular code for hardware-level integration testing of timing-related errors. In addition, we show how UPP2SF may be used for worst-case execution time estimation early in the design stage. Using UPP2SF, we demonstrate the value of integrated end-to-end modeling, verification, code-generation and testing process for complex software-controlled embedded systems.