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In future cars, mechanical and hydraulic components will be replaced by new electronic systems (x-by-wire). A failure of such a system constitutes a safety hazard for the passengers as well as for the environment of the car. Thus electronics and in particular software are taking over more responsibility and safety-critical tasks. To minimize the risk of failure in such systems safety standards are applied for their development. The safety standard IEC 61508 has been established for automotive electronic systems. At the same time, automatic code generation is increasingly being used for automotive software development. This is to cope with today's increasing requirements concerning cost reduction and time needed for ECU development combined with growing complexity. However, automatic code generation is hardly ever used today for the development of safety-critical systems.