switch (fork()) {
        case -1 :
          perror("Validator: fork");
          break;
        case 0 :
          //child code
          if (close(pipe_dsc[1]) == -1)
            perror("Error in close(pipe_dsc[1])");
          printf("KURWA CO SIE ODJEVBALO");
          fflush(stdin);
          execl("./run", "run", pipe_read_dsc_str, NULL);
          perror("Error in execl\n");
          break;
        default :
          // parent code
          if (close(pipe_dsc[0]) == -1)
            perror("Validator: Error in close(pipe_dsc[0])\n");

          if (write(pipe_dsc[1], &am, sizeof(automaton)) != sizeof(automaton))
            perror("Validator: Error in write automaton\n");

          if (write(pipe_dsc[1], &am, sizeof(automaton)) != sizeof(automaton))
            perror("Validator: Error in write automaton\n");

          if (wait(0) == -1)
            perror("Validator: Error in wait\n");
          break;
      }