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I am new to NuSMV and UPPAAL and am working on this problem. Can any one provide a solution to the following question?

Model and analyze a control system of an elevator-system of your
own design serving a number of floors (say 4 or 5) and with a
number of liXs (say 2 or 3) and with a number of users being on
individual floors and with individual wishes for gelng to different
floors. The system may:
•  allow the user may indicate that a liX is required at a certain floor,
and/or needs to go up or down and/or is requested to go to a
certain floor
•  or the user may -- once inside the liX -- request actual floor.
•  In order to move the doors must be closed. •  floors cannot be skiped. •  The ini6al posi6on of all the liXs is floor 1. a The elevator is
controlled by only one buPon by which it is possible to order the elevator to the floor where you stand.

Muhammad Umar Tariq
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    Hi, stack-overflow is not a free-coding service. Please edit your question with your attempt at solving this exercise, and a concise description of the difficulties/problems you encountered along the way, as well as a precise question you want to ask, which should not be *"fix and complete this for me"*. For more information, please consult [how-to-ask](http://stackoverflow.com/help/how-to-ask) and [mcve](http://stackoverflow.com/help/mcve) – Patrick Trentin May 20 '17 at 18:59

1 Answers1

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I won't write the program for you but I can give you some hints.

Decide which entities to include and what states the entities should be able to have. For example: Button, cabin, controller, door...can be entities and the entities can have states. The button can be pressed, the cabin can be moving or idle, the door can be open or closed etc.

Model the entities as modules with SMV. If you don't know SMV then try learn it from simple examples.

Decide which specification that should be satisfied. For example: The elevator should never change floors while the doors are open etc.

If you practice with other example SMV programs then you will find it easier to get started. If you post code where you make an effort to solve the problem we can help you more and better.

Niklas Rosencrantz
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