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It is important to verify both the correctness and real-time properties of embedded systems. However, as practical computer programs are represented by infinite state transition systems, specifying and verifying a computer program is difficult. Real-time properties are also important for embedded programs, but verifying the real-time properties of an embedded program is difficult. In this paper, we focus on verifying an embedded assembly program, in order to verify the real-time safety properties. We propose a deductive verification method to verify real-time safety properties, based on discrete time, as follows: (1) First, we construct a timed computational model including the execution time from the assembly program. We can specify an infinite state transition system including the execution time of the timed computational model. (2) Next, we verify whether a timed computational model satisfies RTLTL (Real-Time Linear Temporal Logic) formulas by deductive verification. We can specify real-time properties by RTLTL. By our proposed methods, we are able to achieve verification of the real-time safety properties of an embedded program.

Deductive Verification Method of Real-Time Safety Properties for Embedded Assembly Programs