./imitator PDFC6.imi -mode PDFC -output-states -output-trace-set -output-cart -output-result -time-limit 300
    ************************************************************
    *  IMITATOR 2.8-alpha "Butter Ham"                         *
    *                                                          *
    *                     Etienne Andre, Ulrich Kuehne et al.  *
    *                                             2009 - 2016  *
    *                       LSV, ENS de Cachan & CNRS, France  *
    *  LIPN, Universite Paris 13, Sorbonne Paris Cite, France  *
    *                                         www.imitator.fr  *
    *                                                          *
    *                   Build: 1981 (2016-05-11 07:25:18 UTC)  *
    *                                          master/ab08ea8  *
    ************************************************************
    Analysis time: Wed May 11, 2016 09:41:16
    
    Model: PDFC6.imi
    Mode: Parametric deadlock-checking.
    The cartography will be drawn.
    The result will be written to a file.
    The trace set(s) will be generated in a graphical mode.
    Description of states will be output.
 *** Warning: IMITATOR will try to stop after 300 seconds.
    
    Abstract model built after 0.004 second.
    Memory for abstract model: 393.289 KiB (i.e., 100682 words)
    
    Starting running algorithm Parametric deadlock-freeness checking...
    
    Computing post^1 from 1 state.
      [Parametric deadlock-freeness checking] None of the parameter valuations compatible with the initial state is deadlock-free: terminate.
      [Parametric deadlock-freeness checking] A sufficient condition to ensure termination was met although there were still 1 state to explore
    
    State space exploration stopped at a depth of 2: 2 states with 1 transition explored.
    
      [Parametric deadlock-freeness checking] Algorithm completed after 0.009 second.
    
    Final constraint such that the system is deadlock-free:
    False
    This constraint is exact (sound and complete)

    Estimated memory used: 964.968 KiB (i.e., 123516 words of size 8)
    
    Result written to file 'PDFC6.res'.
    
    --------------------
    Statistics on state space
    --------------------
    Number of states              : 2
    Number of transitions         : 1
    Number of computed states     : 2
    Computation time              : 0.005 second
    States/second in state space  : 399.2 (2/0.005 second)
    Computed states/second        : 399.2 (2/0.005 second)
    
    Generating graphical output to 'PDFC6-statespace.jpg'...
    Writing the states description to file 'PDFC6-statespace.states'...
 *** Warning: No cartography can be drawn since the list of constraints is empty.
 *** ERROR: Error while printing the cartography

    IMITATOR successfully terminated (after 0.071 second)