TSTP Solution File: PLA019-1 by Gandalf---c-2.6
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% File : Gandalf---c-2.6
% Problem : PLA019-1 : TPTP v3.4.2. Released v1.1.0.
% 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 40.0s
% Output : Assurance 40.0s
% Verified :
% SZS Type : None (Parsing solution fails)
% Syntax : Number of formulae : 0
% Comments :
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%----NO SOLUTION OUTPUT BY SYSTEM
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%----ORIGINAL SYSTEM OUTPUT
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% Gandalf c-2.6 r1 starting to prove: /home/graph/tptp/TSTP/PreparedTPTP/otter:hypothesis:set(auto),clear(print_given)---add_equality:r/PLA/PLA019-1+noeq.in
% Using automatic strategy selection.
% Time limit in seconds: 600
%
% prove-all-passes started
%
% detected problem class: hne
% detected subclass: medium
% detected subclass: long
%
% strategies selected:
% (hyper 57 #f 3 7)
% (binary-unit 28 #f 3 7)
% (binary-double 28 #f)
% (binary-posweight-order 28 #f 3 7)
% (binary 28 #t 3 7)
% (hyper 28 #t)
% (hyper 159 #f)
% (binary-posweight-order 85 #f)
% (binary-weightorder 39 #f)
% (binary-order 28 #f)
% (binary-unit 45 #f)
% (binary 47 #t)
%
%
% ********* EMPTY CLAUSE DERIVED *********
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%
% timer checkpoints: c(31,40,0,62,0,0,1013,50,5,1044,0,5,66326,4,4206)
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%
% START OF PROOF
% 1015 [] holds(holding(X),do(pickup(X),Y)) | -holds(clear(X),Y) | -differ(X,table) | -holds(empty,Y).
% 1016 [] holds(clear(X),do(pickup(Y),Z)) | -holds(on(Y,X),Z) | -holds(clear(Y),Z) | -holds(empty,Z).
% 1018 [] holds(clear(X),do(pickup(Y),Z)) | -holds(clear(X),Z) | -differ(X,Y).
% 1019 [] holds(empty,do(putdown(X,Y),Z)) | -holds(holding(X),Z) | -holds(clear(Y),Z).
% 1020 [] holds(on(X,Y),do(putdown(X,Y),Z)) | -holds(holding(X),Z) | -holds(clear(Y),Z).
% 1021 [] holds(clear(X),do(putdown(X,Y),Z)) | -holds(holding(X),Z) | -holds(clear(Y),Z).
% 1023 [] holds(clear(X),do(putdown(Y,Z),U)) | -holds(clear(X),U) | -differ(X,Z).
% 1024 [] -differ(X,Y) | differ(Y,X).
% 1029 [] differ(b,c).
% 1030 [] differ(b,d).
% 1032 [] differ(c,d).
% 1033 [] differ(c,table).
% 1034 [] differ(d,table).
% 1037 [] holds(on(c,d),s0).
% 1040 [] holds(clear(b),s0).
% 1041 [] holds(clear(c),s0).
% 1042 [] holds(empty,s0).
% 1044 [] -holds(on(d,c),X).
% 1069 [hyper:1024,1030] differ(d,b).
% 1172 [hyper:1018,1040,1029] holds(clear(b),do(pickup(c),s0)).
% 1198 [hyper:1015,1041,cut:1033,cut:1042] holds(holding(c),do(pickup(c),s0)).
% 1280 [hyper:1016,1037,cut:1041,cut:1042] holds(clear(d),do(pickup(c),s0)).
% 2954 [hyper:1019,1198,1172] holds(empty,do(putdown(c,b),do(pickup(c),s0))).
% 2962 [hyper:1021,1198,1172] holds(clear(c),do(putdown(c,b),do(pickup(c),s0))).
% 3176 [hyper:1023,1280,1069] holds(clear(d),do(putdown(X,b),do(pickup(c),s0))).
% 66327 [binary:1020,1044] -holds(holding(d),X) | -holds(clear(c),X).
% 66407 [binary:1018,66327.2] -holds(holding(d),do(pickup(X),Y)) | -holds(clear(c),Y) | -differ(c,X).
% 66505 [binary:1015,66407,cut:1032,cut:1034] -holds(clear(d),X) | -holds(clear(c),X) | -holds(empty,X).
% 66527 [binary:2954,66505.3,cut:2962,cut:3176] contradiction
% END OF PROOF
%
% Proof found by the following strategy:
%
% using binary resolution
% not using sos strategy
% using dynamic demodulation
% using ordered paramodulation
% using kb ordering for equality
% preferring bigger arities for lex ordering
% clause length limited to 7
% clause depth limited to 4
% seconds given: 57
%
%
% old unit clauses discarded
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% ***GANDALF_FOUND_A_REFUTATION***
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% Global statistics over all passes:
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% given clauses: 6618
% derived clauses: 172331
% kept clauses: 60547
% kept size sum: 0
% kept mid-nuclei: 5854
% kept new demods: 0
% forw unit-subs: 63139
% forw double-subs: 15
% forw overdouble-subs: 23
% backward subs: 0
% fast unit cutoff: 106
% full unit cutoff: 0
% dbl unit cutoff: 0
% real runtime : 49.0
% process. runtime: 48.95
% specific non-discr-tree subsumption statistics:
% tried: 129
% length fails: 0
% strength fails: 37
% predlist fails: 5
% aux str. fails: 0
% by-lit fails: 0
% full subs tried: 87
% full subs fail: 64
%
% ; 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/PLA/PLA019-1+noeq.in")
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