Applying Rewriting Techniques to the Verification of Erlang Processes

نویسندگان

  • Thomas Arts
  • Jürgen Giesl
چکیده

Erlang is a functional programming language developed by Ericsson Telecom which is particularly well suited for implementing concurrent processes. In this paper we show how methods from the area of term rewriting are presently used at Ericsson. To verify properties of processes, such a property is transformed into a termination problem of a conditional term rewriting system (CTRS). Subsequently, this termination proof can be performed automatically using dependency pairs. The paper illustrates how the dependency pair technique can be applied for termination proofs of conditional TRSs. Secondly, we present two reenements of this technique, viz. narrowing and rewriting dependency pairs. These reenements are not only of use in the industrial application sketched in this paper, but they are generally applicable to arbitrary (C)TRSs. Thus, in this way dependency pairs can be used to prove termination of even more (C)TRSs automatically.

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تاریخ انتشار 1999