TSTP Solution File: LCL068-1 by Gandalf---c-2.6

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Gandalf---c-2.6
% Problem  : LCL068-1 : TPTP v3.4.2. Bugfixed v1.2.0.
% 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/LCL/LCL068-1+noeq.in
% Using automatic strategy selection.
% Time limit in seconds: 600
% 
% prove-all-passes started
% 
% detected problem class: hne
% detected subclass: small
% detected subclass: short
% 
% strategies selected: 
% (hyper 29 #f 5 5)
% (binary-unit 11 #f 5 5)
% (binary-double 17 #f 5 5)
% (hyper 29 #f)
% (binary-unit 34 #f)
% (binary-weightorder 40 #f)
% (binary 17 #t)
% (binary-order 29 #f)
% (binary-posweight-order 111 #f 5 5)
% (binary-posweight-order 283 #f)
% 
% 
% **** EMPTY CLAUSE DERIVED ****
% 
% 
% timer checkpoints: c(5,40,0,10,0,0)
% 
% 
% START OF PROOF
% 6 [] -is_a_theorem(implies(X,Y)) | -is_a_theorem(X) | is_a_theorem(Y).
% 7 [] is_a_theorem(implies(implies(implies(X,Y),Z),implies(Y,Z))).
% 8 [] is_a_theorem(implies(implies(implies(X,Y),Z),implies(not(X),Z))).
% 9 [] is_a_theorem(implies(implies(not(X),Y),implies(implies(Z,Y),implies(implies(X,Z),Y)))).
% 10 [] -is_a_theorem(implies(implies(not(a),a),a)).
% 13 [hyper:6,7,7] is_a_theorem(implies(X,implies(Y,X))).
% 21 [hyper:6,13,7] is_a_theorem(implies(X,implies(Y,implies(Z,X)))).
% 28 [hyper:6,8,7] is_a_theorem(implies(not(implies(X,Y)),implies(Y,Z))).
% 29 [hyper:6,8,13] is_a_theorem(implies(not(X),implies(Y,implies(X,Z)))).
% 37 [hyper:6,21,7] is_a_theorem(implies(X,implies(Y,implies(Z,implies(U,X))))).
% 58 [hyper:6,9,13] is_a_theorem(implies(implies(X,implies(Y,not(Z))),implies(implies(Z,X),implies(Y,not(Z))))).
% 59 [hyper:6,9,28] is_a_theorem(implies(implies(X,implies(Y,Z)),implies(implies(implies(U,Y),X),implies(Y,Z)))).
% 60 [hyper:6,9,29] is_a_theorem(implies(implies(X,implies(Y,implies(Z,U))),implies(implies(Z,X),implies(Y,implies(Z,U))))).
% 68 [hyper:6,58,7] is_a_theorem(implies(implies(X,implies(implies(Y,Z),not(X))),implies(Z,not(X)))).
% 69 [hyper:6,58,13] is_a_theorem(implies(implies(X,not(X)),implies(Y,not(X)))).
% 89 [hyper:6,59,9] is_a_theorem(implies(implies(implies(X,implies(Y,Z)),implies(not(U),Z)),implies(implies(Y,Z),implies(implies(U,Y),Z)))).
% 92 [hyper:6,59,69] is_a_theorem(implies(implies(implies(X,Y),implies(Z,not(Z))),implies(Y,not(Z)))).
% 110 [hyper:6,60,13] is_a_theorem(implies(implies(X,implies(X,Y)),implies(Z,implies(X,Y)))).
% 116 [hyper:6,60,37] is_a_theorem(implies(implies(X,Y),implies(Z,implies(X,implies(U,Y))))).
% 131 [hyper:6,110,13] is_a_theorem(implies(X,implies(Y,Y))).
% 136 [hyper:6,110,110] is_a_theorem(implies(X,implies(implies(Y,implies(Y,Z)),implies(Y,Z)))).
% 139 [hyper:6,110,59] is_a_theorem(implies(implies(implies(X,Y),implies(Z,implies(Z,U))),implies(Y,implies(Z,U)))).
% 140 [hyper:6,110,60] is_a_theorem(implies(implies(X,implies(X,implies(X,Y))),implies(Z,implies(X,Y)))).
% 144 [hyper:6,131,slowcut:140] is_a_theorem(implies(X,X)).
% 150 [hyper:6,144,8] is_a_theorem(implies(not(X),implies(X,Y))).
% 151 [hyper:6,144,9] is_a_theorem(implies(implies(X,not(Y)),implies(implies(Y,X),not(Y)))).
% 160 [hyper:6,150,9] is_a_theorem(implies(implies(X,implies(Y,Z)),implies(implies(Y,X),implies(Y,Z)))).
% 161 [hyper:6,150,58] is_a_theorem(implies(implies(X,not(Y)),implies(Y,not(X)))).
% 202 [hyper:6,161,144] is_a_theorem(implies(X,not(not(X)))).
% 431 [hyper:6,92,68] is_a_theorem(implies(implies(implies(X,Y),not(Y)),not(Y))).
% 474 [hyper:6,116,431] is_a_theorem(implies(X,implies(implies(implies(Y,Z),not(Z)),implies(U,not(Z))))).
% 477 [hyper:6,136,slowcut:474] is_a_theorem(implies(implies(X,implies(X,Y)),implies(X,Y))).
% 481 [hyper:6,477,116] is_a_theorem(implies(implies(X,Y),implies(X,implies(Z,Y)))).
% 533 [hyper:6,481,60] is_a_theorem(implies(implies(X,implies(Y,Z)),implies(Y,implies(X,Z)))).
% 588 [hyper:6,151,202] is_a_theorem(implies(implies(not(X),X),not(not(X)))).
% 911 [hyper:6,139,89] is_a_theorem(implies(implies(not(X),X),implies(implies(X,X),X))).
% 916 [hyper:6,911,8] is_a_theorem(implies(not(not(X)),implies(implies(X,X),X))).
% 1241 [hyper:6,533,916] is_a_theorem(implies(implies(X,X),implies(not(not(X)),X))).
% 1284 [hyper:6,1241,cut:144] is_a_theorem(implies(not(not(X)),X)).
% 1290 [hyper:6,1284,481] is_a_theorem(implies(not(not(X)),implies(Y,X))).
% 1304 [hyper:6,1290,160] is_a_theorem(implies(implies(X,not(not(Y))),implies(X,Y))).
% 1334 [hyper:6,1304,588,slowcut:10] contradiction
% END OF PROOF
% 
% Proof found by the following strategy:
% 
% using hyperresolution
% not using sos strategy
% using positive unit paramodulation strategy
% using dynamic demodulation
% using ordered paramodulation
% using kb ordering for equality
% preferring bigger arities for lex ordering
% clause length limited to 5
% clause depth limited to 5
% seconds given: 29
% 
% 
% ***GANDALF_FOUND_A_REFUTATION***
% 
% Global statistics over all passes: 
% 
%  given clauses:    246
%  derived clauses:   21864
%  kept clauses:      778
%  kept size sum:     10263
%  kept mid-nuclei:   527
%  kept new demods:   0
%  forw unit-subs:    8411
%  forw double-subs: 0
%  forw overdouble-subs: 0
%  backward subs:     7
%  fast unit cutoff:  1
%  full unit cutoff:  16
%  dbl  unit cutoff:  0
%  real runtime  :  0.16
%  process. runtime:  0.14
% 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/LCL/LCL068-1+noeq.in")
% 
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