%A Hoang Viet Tran %A Ngoc Hung Pham %J VNU Journal of Science: Computer Science and Communication Engineering %T On Locally Strongest Assumption Generation Method for Component-Based Software Verification %X Assume-guarantee reasoning, a well-known approach in component-based software (CBS) verification, is in fact a language containment problem whose computational cost depends on the sizes of languages of the software components under checking and the assumption to be generated. Therefore, the smaller language assumptions, the more computational cost we can reduce in software verification. Moreover, strong assumptions are more important in CBS verification in the context of software evolution because they can be reused many times in the verification process. For this reason, this paper presents a method for generating locally strongest assumptions with locally smallest languages during CBS verification. The key idea of this method is to create a variant technique for answering membership queries of the Teacher when responding to the Learner in the L–based assumption learning process. This variant technique is then integrated into an algorithm in order to generate locally strongest assumptions. These assumptions will effectively reduce the computational cost when verifying CBS, especially for large–scale and evolving ones. The correctness proof, experimental results, and some discussions about the proposed method are also presented. %N 2 %P 16-32 %V 34 %D 2018 %I VNU %R https://doi.org/10.25073/2588-1086/vnucsce.209 %L SisLab3500