Synthesising correct concurrent runtime monitors

We study the correctness of automated synthesis for concurrent monitors. We adapt HML, a subset of the Hennessy-Milner logic with recursion, to specify safety properties of Erlang programs, and define an automated translation from HML formulas to Erlang monitors so as to detect formula violations at runtime. We then formalise monitor correctness for our concurrent setting and describe a technique that allows us to prove monitor correctness in stages; this technique is used to prove the correctness of our automated monitor synthesis.