A formal proof of a system correctness typically holds under a number of assumptions. Leaving them implicit raises the chance of using the system in a context that violates some assumptions, which in return may invalidate the correctness proof. The goal of this paper is to show how combining informal and formal techniques in the process of modelling and formal verification helps capturing these assumptions. As we focus on embedded systems, the assumptions are about the control software, the system on which the software is running and the system’s environment. We present them as a list written in natural language that supplements the formally verified embedded system model. These two together are a better argument for system correctness than each of these given separately.
|Place of Publication||Enschede|
|Publisher||Centre for Telematics and Information Technology (CTIT)|
|Number of pages||33|
|Publication status||Published - Jan 2007|
|Name||CTIT Technical Report Series|
|Publisher||University of Twente, Centre for Telematics and Information Technology (CTIT)|
Marincic, J., Mader, A. H., & Wieringa, R. J. (2007). Capturing Assumptions while Designing a Verification Model for Embedded Systems. (CTIT Technical Report Series; No. 2/TR-CTIT-07-03). Enschede: Centre for Telematics and Information Technology (CTIT).