PLACE
    PROGRAM_END,
    PROGRAM_PANIC,
    PROGRAM_START,
    main_BB1;

MARKING
    PROGRAM_END : 0,
    PROGRAM_PANIC : 0,
    PROGRAM_START : 1,
    main_BB1 : 0;

TRANSITION call_0_RETURN
  CONSUME
    PROGRAM_START : 1;
  PRODUCE
    main_BB1 : 1;
TRANSITION main_RETURN
  CONSUME
    main_BB1 : 1;
  PRODUCE
    PROGRAM_END : 1;