TSTP Solution File: GRP486-1 by Gandalf---c-2.6
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% File : Gandalf---c-2.6
% Problem : GRP486-1 : 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 : art08.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
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%----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/GRP486-1+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 6 1)
% (binary-posweight-lex-big-order 30 #f 6 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(6,40,0,12,0,0)
%
%
% START OF PROOF
% 8 [] equal(double_divide(double_divide(X,double_divide(double_divide(double_divide(X,Y),Z),double_divide(Y,identity))),double_divide(identity,identity)),Z).
% 9 [] equal(multiply(X,Y),double_divide(double_divide(Y,X),identity)).
% 10 [] equal(inverse(X),double_divide(X,identity)).
% 11 [] equal(identity,double_divide(X,inverse(X))).
% 12 [] -equal(multiply(multiply(a3,b3),c3),multiply(a3,multiply(b3,c3))).
% 13 [para:9.1.2,10.1.2] equal(inverse(double_divide(X,Y)),multiply(Y,X)).
% 14 [para:10.1.2,9.1.2.1,demod:10] equal(multiply(identity,X),inverse(inverse(X))).
% 16 [para:9.1.2,9.1.2.1,demod:10] equal(multiply(identity,double_divide(X,Y)),inverse(multiply(Y,X))).
% 18 [para:14.1.2,14.1.2.1] equal(multiply(identity,inverse(X)),inverse(multiply(identity,X))).
% 20 [para:13.1.1,11.1.2.2] equal(identity,double_divide(double_divide(X,Y),multiply(Y,X))).
% 25 [para:10.1.2,8.1.1.1.2.1,demod:10,13] equal(double_divide(double_divide(X,double_divide(multiply(Y,X),inverse(Y))),inverse(identity)),identity).
% 26 [para:10.1.2,8.1.1.1.2.1.1,demod:10] equal(double_divide(double_divide(X,double_divide(double_divide(inverse(X),Y),inverse(identity))),inverse(identity)),Y).
% 27 [para:10.1.2,8.1.1.1.2.2,demod:10] equal(double_divide(double_divide(X,double_divide(double_divide(double_divide(X,Y),Z),inverse(Y))),inverse(identity)),Z).
% 28 [para:11.1.2,8.1.1.1.2.1,demod:13,10] equal(double_divide(double_divide(X,double_divide(identity,inverse(Y))),inverse(identity)),multiply(Y,X)).
% 29 [para:11.1.2,8.1.1.1.2.1.1,demod:14,10] equal(double_divide(double_divide(X,double_divide(double_divide(identity,Y),multiply(identity,X))),inverse(identity)),Y).
% 32 [para:20.1.2,8.1.1.1.2.1.1,demod:10] equal(double_divide(double_divide(double_divide(X,Y),double_divide(double_divide(identity,Z),inverse(multiply(Y,X)))),inverse(identity)),Z).
% 47 [para:11.1.2,28.1.1.1.2,demod:10] equal(double_divide(inverse(X),inverse(identity)),multiply(identity,X)).
% 54 [para:14.1.2,47.1.1.1] equal(double_divide(multiply(identity,X),inverse(identity)),multiply(identity,inverse(X))).
% 55 [para:13.1.1,47.1.1.1,demod:16] equal(double_divide(multiply(X,Y),inverse(identity)),inverse(multiply(X,Y))).
% 60 [para:55.1.1,25.1.1.1.2,demod:18] equal(double_divide(double_divide(X,multiply(identity,inverse(X))),inverse(identity)),identity).
% 65 [para:47.1.1,26.1.1.1.2.1,demod:60,54] equal(identity,inverse(identity)).
% 66 [para:26.1.1,26.1.1.1.2,demod:14,9,65] equal(multiply(X,Y),multiply(X,multiply(identity,Y))).
% 72 [para:65.1.2,26.1.1.1.2.2,demod:65,9] equal(multiply(multiply(X,inverse(Y)),Y),X).
% 76 [para:14.1.2,72.1.1.1.2,demod:66] equal(multiply(multiply(X,Y),inverse(Y)),X).
% 81 [?] ?
% 98 [para:28.1.1,27.1.1.1.2,demod:72,9,65,10] equal(X,double_divide(identity,inverse(X))).
% 104 [para:18.1.2,98.1.2.2,demod:98,81] equal(multiply(identity,X),X).
% 108 [para:104.1.1,16.1.1] equal(double_divide(X,Y),inverse(multiply(Y,X))).
% 111 [para:10.1.2,29.1.1.1.2.1,demod:9,104,65] equal(multiply(double_divide(identity,X),X),identity).
% 119 [para:111.1.1,76.1.1.1,demod:81] equal(inverse(X),double_divide(identity,X)).
% 135 [para:72.1.1,108.1.2.1] equal(double_divide(X,multiply(Y,inverse(X))),inverse(Y)).
% 148 [para:32.1.1,27.1.1.1.2,demod:104,119,9,65] equal(multiply(X,Y),double_divide(inverse(X),inverse(Y))).
% 163 [para:135.1.1,8.1.1.1.2.1,demod:13,9,65,119,148,10,slowcut:12] 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 6
% seconds given: 60
%
%
% ***GANDALF_FOUND_A_REFUTATION***
%
% Global statistics over all passes:
%
% given clauses: 52
% derived clauses: 1110
% kept clauses: 149
% kept size sum: 1709
% kept mid-nuclei: 0
% kept new demods: 153
% forw unit-subs: 951
% forw double-subs: 0
% forw overdouble-subs: 0
% backward subs: 3
% fast unit cutoff: 0
% full unit cutoff: 0
% dbl unit cutoff: 0
% real runtime : 0.2
% 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/GRP/GRP486-1+eq_r.in")
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