imitator coffee-security-inst.imi -mode EFunsafe -merge -incl -output-result
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 *  IMITATOR 2.10.4 "Butter Jellyfish"                      *
 *                                                          *
 *                                    Etienne Andre et al.  *
 *                                             2009 - 2018  *
 *                       LSV, ENS de Cachan & CNRS, France  *
 *                       LIPN, Universite Paris 13, France  *
 *                                         www.imitator.fr  *
 *                                                          *
 *                   Build: 2539 (2018-10-18 02:52:58 UTC)  *
 *                                feature/MinReach/fa76ce5  *
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 Model: coffee-security-inst.imi
 Mode: EFunsafe-synthesis.
 Considering fixpoint variant with monodirectional inclusion of symbolic zones (instead of equality).
 Merging technique of [AFS13] enabled.
 The result will be written to a file.
 Starting running algorithm EFunsafe…
 
 Computing post^1 from 1 state.
 Computing post^2 from 1 state.
 Computing post^3 from 2 states.
   [EFunsafe] Found a new state violating the property.
 Computing post^4 from 1 state.
 
 Fixpoint reached at a depth of 5: 7 states with 6 transitions in the final state space.
 
   [EFunsafe] Algorithm completed after 0.021 second.
 
 Final constraint such that the system is incorrect:
  abs_ptime = 8
 This bad constraint is exact (sound and complete)
 
 Result written to file 'coffee-security-inst.res'.

 IMITATOR successfully terminated (after 0.022 second)