Relaxing B Sharing Restrictions within CSP||B

This paper addresses the issue of state sharing in CSP‖B specifications: B machines controlled by various CSP parts are supposed not to refer to, share or modify the same state space. However, some kinds of B state sharing can be allowed without creating inconsistencies in CSP‖B specifications. To achieve this, we present an approach where inconsistencies in state sharing can be identified by translating the CSP controllers to B specifications and then using a more refined consistency checking process.