Relaxing B Sharing Restrictions within CSP||B

Abstract

Abstract. 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.