Semantic on PROMELA dynamic process creation in concurrent systems

PROMELA is a high level modeling language for model checking purpose. PROMELA model can be checked using SPIN (Simple PROMELA Interpreter) model checker to ensure formally some specifications hold in the model. However, PROMELA does not have formal and clear semantics. It is interpreted under SPIN implementation only and thus is bounded into SPIN. With high-level language it has, PROMELA has gain fame in model checker world due to its easiness to capture process model using high level language. Describing PROMELA formal semantic is a good way to broaden PROMELA usage. One of PROMELA feature is the ability to model concurrent processes, in which the concurrent process may not start from the same time point. This feature, called dynamic process creation, is essential to be noticed, to ensure that state-transition of PROMELA model is correct. Dynamic process creation in PROMELA should be defined formally, we use Labeled Transition Systems (LTSs) to describe formal semantic of PROMELA dynamic process creation.