Towards Model Checking of Network Applications for IoT System Development

With the expansion of the Internet, Internet of Things (IoT) gains lots of interest from industries and academia. IoT applications enable human-to-device and device-to-device interactions. For a successful deployment of IoT systems and services, software reliability is a very important requirement for IoT to ensure that data/messages have been received and performed properly in a timely manner. The concurrent connections of embedded sensors and actuators are nondeterministic in nature which makes testing insufficient to guarantee program correctness. In contrast, model checking techniques explore the entire behavior of a system under test (SUT) in brute-force and systematic manner. It investigates each reachable state for different thread schedules. Recent model checking techniques have been applied directly to networked programs. This paper reviews model checking techniques for networked applications and presents their strengths and limitations. A preliminary proposal for model checking of networked applications that addresses the identified gap is presented

Efficient model checking of applications with input/output

Abstract. Most non-trivial applications use some form of input/output (I/O), such as network communication. When model checking such an application, a simple state space exploration scheme is not applicable, as the process being model checked would replay I/O operations when revisiting a given state. Thus software model checking needs to encapsulate such operations in a caching layer that is capable of hiding redundant executions of I/O operations from the environment