**************************************************
Claim
{ termination = Standard
, system = (VAR x1)
(RULES a a a -> b a b ,
b a b -> a b a)
, deadline = Just
(Time
-2040235603)
}
is false because of
looping forward closure
of length 6
Derivation
{ lhs = [ a , a , a , b , a , a ] , rhs = [ a , a , a , b , a , a ]
, hash_value = -994042567 , strict = True
, steps = [ Step
{ rule = 0 , position = 0 }
, Step
{ rule = 1 , position = 0 }
, Step
{ rule = 1 , position = 1 }
, Step
{ rule = 0 , position = 3 }
, Step
{ rule = 1 , position = 3 }
, Step
{ rule = 1 , position = 2 }
]
}
this is closure number 32
**************************************************
statistics:
total atomic proof attempts
number = 9, total = 6
maximal = [ Log
{ what = rfc match bounds (classical)
, start = Time
-2040241479
, end = Time
-2040240975
, duration = 5 , success = False
}
]
successful atomic proof attempts
number = 2, total = 0
maximal = [ Log
{ what = simplex
, start = Time
-2040241479
, end = Time
-2040241479
, duration = 0 , success = True
}
, Log
{ what = simplex
, start = Time
-2040241480
, end = Time
-2040241480
, duration = 0 , success = True
}
]
failed atomic proof attempts
number = 7, total = 6
maximal = [ Log
{ what = rfc match bounds (classical)
, start = Time
-2040241479
, end = Time
-2040240975
, duration = 5 , success = False
}
]
**************************************************
matchbox general information (including details on proof methods):
http://dfa.imn.htwk-leipzig.de/matchbox/
this matchbox implementation uses the SAT solver
MiniSat by Niklas Een and Niklas Sörensson
http://www.cs.chalmers.se/Cs/Research/FormalMethods/MiniSat/
matchbox process information
arguments : --solver=/tmp/tmp9VHPHJ/matchbox-2007-06-01/minisat --timeout-command=/tmp/tmp9VHPHJ/matchbox-2007-06-01/timeout --tmpdir=tmp --timeout=60 /tmp/tmp.QyzMvLqWt6/a.srs
started : Thu Jan 26 12:54:20 CET 2012
finished : Thu Jan 26 12:54:27 CET 2012
run system : Linux uc01-01 2.6.32-5-amd64 #1 SMP Mon Mar 7 21:35:22 UTC 2011 x86_64
release date : Fri Jun 1 17:36:44 CEST 2007
build date : Fri Jun 1 17:36:44 CEST 2007
build system : Linux dfa 2.6.8-2-k7 #1 Tue Aug 16 14:00:15 UTC 2005 i686 GNU/Linux
used clock time: 7 secs