To find all types of vertices

For the 2.2 step, the following is the list of the input and output files.

Then the user should do the following things:

• Check the file out to see if there are some thing wrong
• Check the file model_state to see if there is the line

      model_generator1:=ok;
      model_generator2:=ok;
      model_generator2.1:=ok;
      model_generator2.2:=ok;