%------------------------------------------------------------------------------
% File     : Gandalf---c-2.6
% Problem  : PUZ047-1 : TPTP v3.4.2. Released v2.5.0.
% Transfm  : add_equality:r
% Format   : otter:hypothesis:set(auto),clear(print_given)
% Command  : gandalf-wrapper -time %d %s

% Computer : art05.cs.miami.edu
% Model    : i686 unknown
% CPU      : Intel(R) Pentium(R) 4 CPU 2.80GHz @ 2793MHz
% Memory   : 1000MB
% OS       : Linux 2.4.22-21mdk-i686-up-4GB
% CPULimit : 600s

% Result   : Unsatisfiable 0.0s
% Output   : Assurance 0.0s
% Verified : 
% SZS Type : None (Parsing solution fails)
% Syntax   : Number of formulae    : 0

% Comments : 
%------------------------------------------------------------------------------
%----NO SOLUTION OUTPUT BY SYSTEM
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 
% Gandalf c-2.6 r1 starting to prove: /home/graph/tptp/TSTP/PreparedTPTP/otter:hypothesis:set(auto),clear(print_given)---add_equality:r/PUZ/PUZ047-1+noeq.in
% Using automatic strategy selection.
% Time limit in seconds: 600
% 
% prove-all-passes started
% 
% detected problem class: hne
% detected subclass: medium
% detected subclass: short
% 
% strategies selected: 
% (hyper 12 #t 2 3)
% (binary-unit 30 #f 2 3)
% (binary-posweight-order 90 #f 2 3)
% (binary-double 30 #f)
% (binary 48 #t 2 3)
% (hyper 30 #f)
% (binary-posweight-order 180 #f)
% (binary-weightorder 42 #f)
% (binary-order 30 #f)
% (binary-unit 48 #f)
% (binary 60 #t)
% 
% 
% **** EMPTY CLAUSE DERIVED ****
% 
% 
% timer checkpoints: c(16,40,1,32,0,1,32,50,1,48,0,1,48,50,1,64,0,1,64,50,1,80,0,1,80,50,1,96,0,1,96,50,1,112,0,1,112,50,1,128,0,1,128,50,1,144,0,1,144,50,1,160,0,1,160,50,1,176,0,1,176,50,1,192,0,1,192,50,1,208,0,1,208,50,1,224,0,1,224,50,1,240,0,1,240,50,1,256,0,1,256,50,1,272,0,1,272,50,1,288,0,1,288,50,1,304,0,1,304,50,1,320,0,1,320,50,1,336,0,1,336,50,1,336,40,1,352,0,1)
% 
% 
% START OF PROOF
% 340 [] p(north,north,south,north,take_cabbage(X)) | -p(south,north,south,south,X).
% 341 [] p(south,X,south,Y,take_goat(Z)) | -p(north,X,north,Y,Z).
% 342 [] p(north,X,north,Y,take_goat(Z)) | -p(south,X,south,Y,Z).
% 344 [] p(north,north,north,south,take_wolf(X)) | -p(south,south,north,south,X).
% 347 [] p(south,south,north,south,go_alone(X)) | -p(north,south,north,south,X).
% 349 [?] ?
% 351 [] p(south,south,south,south,start).
% 352 [] -p(north,north,north,north,X).
% 355 [binary:352,342] -p(south,north,south,north,X).
% 356 [binary:351,342.2] p(north,south,north,south,take_goat(start)).
% 367 [input:349,cut:355] -p(north,north,south,north,X).
% 368 [binary:340,367] -p(south,north,south,south,X).
% 370 [binary:341,368] -p(north,north,north,south,X).
% 373 [binary:344,370] -p(south,south,north,south,X).
% 375 [binary:347,373,slowcut:356] contradiction
% END OF PROOF
% 
% Proof found by the following strategy:
% 
% using binary resolution
% not using sos strategy
% using unit strategy
% using dynamic demodulation
% using ordered paramodulation
% using kb ordering for equality
% preferring bigger arities for lex ordering
% using clause demodulation
% clause length limited to 3
% clause depth limited to 2
% seconds given: 30
% 
% 
% ***GANDALF_FOUND_A_REFUTATION***
% 
% Global statistics over all passes: 
% 
%  given clauses:    43
%  derived clauses:   27
%  kept clauses:      8
%  kept size sum:     49
%  kept mid-nuclei:   0
%  kept new demods:   0
%  forw unit-subs:    3
%  forw double-subs: 0
%  forw overdouble-subs: 0
%  backward subs:     21
%  fast unit cutoff:  1
%  full unit cutoff:  0
%  dbl  unit cutoff:  0
%  real runtime  :  0.1
%  process. runtime:  0.1
% specific non-discr-tree subsumption statistics: 
%  tried:           0
%  length fails:    0
%  strength fails:  0
%  predlist fails:  0
%  aux str. fails:  0
%  by-lit fails:    0
%  full subs tried: 0
%  full subs fail:  0
% 
% ; program args: ("/home/graph/tptp/Systems/Gandalf---c-2.6/gandalf" "-time" "600" "/home/graph/tptp/TSTP/PreparedTPTP/otter:hypothesis:set(auto),clear(print_given)---add_equality:r/PUZ/PUZ047-1+noeq.in")
% 
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