The software development process for embedded systems is getting faster and faster, which generally incurs an increase in the associated complexity.As a consequence, technology companies tend to invest in fast and automatic verification mechanisms, to create robust systems and reduce product recall rates.In addition, further development-time reduction and system robustness can be achieved through cross-platform frameworks, such as Qt, which favor the reliable port of software stacks to different devices.Based on that, the present paper proposes a simplified version of the Qt framework, which is integrated into a checker based on satisfiability modulo theories (SMT), known as the Efficient SMT-based Context-Bounded Model Checker, for verifying actual Qt-based applications, with a success rate of 89%, for the developed benchmark suite. Furthermore, the simplified version of the Qt framework, named as Qt Operational Model, was also evaluated using other state-of-the-art verifiers for C++ programs. In fact, Qt Operational Model was combined with 2 different verification approaches: explicit-state model checking and also symbolic (bounded) model checking, during the experimental evaluation, which highlights its flexibility. The proposed methodology is the first one to formally verify Qt-based applications, which has the potential to devise new directions for software verification of portable code.