TSTP Solution File: GRP606-1 by Gandalf---c-2.6

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Gandalf---c-2.6
% Problem  : GRP606-1 : TPTP v3.4.2. Released v2.6.0.
% 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/GRP/GRP606-1+eq_r.in
% Using automatic strategy selection.
% Time limit in seconds: 600
% 
% prove-all-passes started
% 
% detected problem class: ueq
% 
% strategies selected: 
% (binary-posweight-kb-big-order 60 #f 7 1)
% (binary-posweight-lex-big-order 30 #f 7 1)
% (binary 30 #t)
% (binary-posweight-kb-big-order 180 #f)
% (binary-posweight-lex-big-order 120 #f)
% (binary-posweight-firstpref-order 60 #f)
% (binary-posweight-kb-small-order 60 #f)
% (binary-posweight-lex-small-order 60 #f)
% 
% 
% ********* EMPTY CLAUSE DERIVED *********
% 
% 
% timer checkpoints: c(4,40,0,8,0,0)
% 
% 
% START OF PROOF
% 5 [] equal(X,X).
% 6 [] equal(double_divide(inverse(double_divide(X,inverse(double_divide(inverse(Y),double_divide(X,Z))))),Z),Y).
% 7 [] equal(multiply(X,Y),inverse(double_divide(Y,X))).
% 8 [] -equal(multiply(multiply(inverse(b2),b2),a2),a2).
% 9 [para:6.1.1,7.1.2.1,demod:7] equal(multiply(X,multiply(multiply(double_divide(Y,X),inverse(Z)),Y)),inverse(Z)).
% 10 [para:7.1.2,6.1.1.1,demod:7] equal(double_divide(multiply(multiply(double_divide(X,Y),inverse(Z)),X),Y),Z).
% 11 [para:7.1.2,6.1.1.1.1.2.1.1,demod:7] equal(double_divide(multiply(multiply(double_divide(X,Y),multiply(Z,U)),X),Y),double_divide(U,Z)).
% 12 [para:6.1.1,6.1.1.1.1.2.1,demod:7] equal(double_divide(multiply(inverse(X),Y),Z),double_divide(U,multiply(double_divide(U,double_divide(Y,Z)),inverse(X)))).
% 13 [para:6.1.1,6.1.1.1.1.2.1.2,demod:7] equal(double_divide(multiply(multiply(X,inverse(Y)),multiply(multiply(double_divide(Z,U),inverse(X)),Z)),U),Y).
% 14 [para:7.1.2,9.1.1.2.1.2,demod:7] equal(multiply(X,multiply(multiply(double_divide(Y,X),multiply(Z,U)),Y)),multiply(Z,U)).
% 36 [para:9.1.1,13.1.1.1] equal(double_divide(inverse(X),multiply(X,inverse(Y))),Y).
% 42 [para:36.1.1,7.1.2.1] equal(multiply(multiply(X,inverse(Y)),inverse(X)),inverse(Y)).
% 44 [para:7.1.2,36.1.1.2.2] equal(double_divide(inverse(X),multiply(X,multiply(Y,Z))),double_divide(Z,Y)).
% 54 [para:7.1.2,42.1.1.1.2,demod:7] equal(multiply(multiply(X,multiply(Y,Z)),inverse(X)),multiply(Y,Z)).
% 56 [para:42.1.1,36.1.1.2] equal(double_divide(inverse(multiply(X,inverse(Y))),inverse(Y)),X).
% 57 [para:42.1.1,42.1.1.1] equal(multiply(inverse(X),inverse(multiply(Y,inverse(X)))),inverse(Y)).
% 58 [para:7.1.2,56.1.1.1.1.2,demod:7] equal(double_divide(inverse(multiply(X,multiply(Y,Z))),multiply(Y,Z)),X).
% 66 [para:42.1.1,56.1.1.1.1] equal(double_divide(inverse(inverse(X)),inverse(Y)),multiply(Y,inverse(X))).
% 72 [para:7.1.2,66.1.1.2] equal(double_divide(inverse(inverse(X)),multiply(Y,Z)),multiply(double_divide(Z,Y),inverse(X))).
% 101 [para:9.1.1,44.1.1.2] equal(double_divide(inverse(X),inverse(Y)),double_divide(Z,multiply(double_divide(Z,X),inverse(Y)))).
% 111 [para:9.1.1,54.1.1.1] equal(multiply(inverse(X),inverse(Y)),multiply(multiply(double_divide(Z,Y),inverse(X)),Z)).
% 112 [para:9.1.1,54.1.1.1.2,demod:111,42] equal(inverse(X),multiply(Y,multiply(inverse(X),inverse(Y)))).
% 113 [para:14.1.1,54.1.1.1] equal(multiply(multiply(X,Y),inverse(Z)),multiply(multiply(double_divide(U,Z),multiply(X,Y)),U)).
% 127 [para:112.1.2,44.1.1.2.2,demod:36] equal(X,double_divide(multiply(inverse(X),inverse(Y)),Y)).
% 128 [para:7.1.2,127.1.2.1.1] equal(double_divide(X,Y),double_divide(multiply(multiply(Y,X),inverse(Z)),Z)).
% 137 [para:9.1.1,58.1.1.1.1,demod:72,111] equal(multiply(double_divide(inverse(X),inverse(Y)),inverse(Y)),X).
% 166 [para:137.1.1,10.1.1.1.1] equal(double_divide(multiply(X,inverse(X)),inverse(Y)),Y).
% 167 [para:137.1.1,9.1.1.2.1] equal(multiply(inverse(X),multiply(Y,inverse(Y))),inverse(X)).
% 177 [para:137.1.1,54.1.1.1.2,demod:137] equal(multiply(multiply(X,Y),inverse(X)),Y).
% 178 [para:137.1.1,58.1.1.1.1.2,demod:137] equal(double_divide(inverse(multiply(X,Y)),Y),X).
% 184 [para:177.1.1,57.1.1.2.1] equal(multiply(inverse(X),inverse(Y)),inverse(multiply(X,Y))).
% 190 [para:178.1.1,6.1.1.1.1.2.1,demod:7] equal(double_divide(multiply(inverse(X),Y),Z),multiply(X,double_divide(Y,Z))).
% 202 [para:177.1.1,178.1.1.1.1] equal(double_divide(inverse(X),inverse(Y)),multiply(Y,X)).
% 208 [para:166.1.1,12.1.2.2.1.2,demod:101,202,167] equal(multiply(X,Y),multiply(Y,X)).
% 214 [para:208.1.1,8.1.1.1] -equal(multiply(multiply(b2,inverse(b2)),a2),a2).
% 222 [para:208.1.1,11.1.1.1.1.2,demod:128,113] equal(double_divide(X,Y),double_divide(Y,X)).
% 247 [para:208.1.1,127.1.2.1,demod:184] equal(X,double_divide(inverse(multiply(Y,X)),Y)).
% 252 [para:208.1.1,137.1.1,demod:202] equal(multiply(inverse(X),multiply(X,Y)),Y).
% 289 [para:222.1.1,12.1.2.2.1.2,demod:7,101,190] equal(multiply(X,double_divide(Y,Z)),double_divide(multiply(Y,Z),inverse(X))).
% 302 [para:9.1.1,247.1.2.1.1,demod:184,111] equal(inverse(multiply(X,Y)),double_divide(inverse(inverse(X)),Y)).
% 305 [para:14.1.1,247.1.2.1.1,demod:113] equal(multiply(multiply(X,Y),inverse(Z)),double_divide(inverse(multiply(X,Y)),Z)).
% 324 [para:14.1.1,252.1.1.2,demod:305,113] equal(multiply(inverse(X),multiply(Y,Z)),double_divide(inverse(multiply(Y,Z)),X)).
% 329 [para:252.1.1,44.1.1.2,demod:302] equal(inverse(multiply(X,Y)),double_divide(Y,X)).
% 331 [para:252.1.1,112.1.2] equal(inverse(X),inverse(inverse(inverse(X)))).
% 337 [para:208.1.1,252.1.1.2,demod:329,324] equal(double_divide(double_divide(X,Y),X),Y).
% 342 [para:331.1.2,6.1.1.1.1.2.1.1,demod:337,329,202,101,7] equal(X,inverse(inverse(X))).
% 348 [para:331.1.2,166.1.1.1.2,demod:289,342] equal(multiply(X,double_divide(Y,inverse(Y))),X).
% 422 [para:36.1.1,337.1.1.1] equal(double_divide(X,inverse(Y)),multiply(Y,inverse(X))).
% 510 [para:208.1.1,214.1.1,demod:348,422,cut:5] contradiction
% END OF PROOF
% 
% Proof found by the following strategy:
% 
% using binary resolution
% using first neg lit preferred strategy
% not using sos 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 1
% clause depth limited to 7
% seconds given: 60
% 
% 
% ***GANDALF_FOUND_A_REFUTATION***
% 
% Global statistics over all passes: 
% 
%  given clauses:    44
%  derived clauses:   1363
%  kept clauses:      501
%  kept size sum:     8566
%  kept mid-nuclei:   0
%  kept new demods:   472
%  forw unit-subs:    843
%  forw double-subs: 0
%  forw overdouble-subs: 0
%  backward subs:     8
%  fast unit cutoff:  1
%  full unit cutoff:  0
%  dbl  unit cutoff:  0
%  real runtime  :  0.5
%  process. runtime:  0.5
% 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/GRP/GRP606-1+eq_r.in")
% 
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