TSTP Solution File: BOO009-4 by Gandalf---c-2.6

View Problem - Process Solution

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% File     : Gandalf---c-2.6
% Problem  : BOO009-4 : 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 : art02.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/BOO/BOO009-4+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 3 1)
% (binary-posweight-lex-big-order 30 #f 3 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(10,40,0,20,0,0)
% 
% 
% START OF PROOF
% 11 [] equal(X,X).
% 12 [] equal(add(X,Y),add(Y,X)).
% 13 [] equal(multiply(X,Y),multiply(Y,X)).
% 14 [] equal(add(X,multiply(Y,Z)),multiply(add(X,Y),add(X,Z))).
% 15 [] equal(multiply(X,add(Y,Z)),add(multiply(X,Y),multiply(X,Z))).
% 16 [] equal(add(X,additive_identity),X).
% 17 [] equal(multiply(X,multiplicative_identity),X).
% 18 [] equal(add(X,inverse(X)),multiplicative_identity).
% 19 [] equal(multiply(X,inverse(X)),additive_identity).
% 20 [] -equal(multiply(a,add(a,b)),a).
% 21 [para:12.1.1,16.1.1] equal(add(additive_identity,X),X).
% 22 [para:12.1.1,18.1.1] equal(add(inverse(X),X),multiplicative_identity).
% 24 [para:21.1.1,18.1.1] equal(inverse(additive_identity),multiplicative_identity).
% 25 [para:13.1.1,17.1.1] equal(multiply(multiplicative_identity,X),X).
% 26 [para:13.1.1,19.1.1] equal(multiply(inverse(X),X),additive_identity).
% 29 [para:25.1.1,19.1.1] equal(inverse(multiplicative_identity),additive_identity).
% 30 [para:16.1.1,14.1.2.1] equal(add(X,multiply(additive_identity,Y)),multiply(X,add(X,Y))).
% 34 [para:22.1.1,14.1.2.1,demod:25] equal(add(inverse(X),multiply(X,Y)),add(inverse(X),Y)).
% 35 [para:22.1.1,14.1.2.2,demod:17] equal(add(inverse(X),multiply(Y,X)),add(inverse(X),Y)).
% 37 [para:17.1.1,34.1.1.2,demod:22] equal(multiplicative_identity,add(inverse(X),multiplicative_identity)).
% 40 [para:24.1.1,34.1.1.1,demod:24] equal(add(multiplicative_identity,multiply(additive_identity,X)),add(multiplicative_identity,X)).
% 42 [para:24.1.1,37.1.2.1] equal(multiplicative_identity,add(multiplicative_identity,multiplicative_identity)).
% 43 [para:17.1.1,15.1.2.1] equal(multiply(X,add(multiplicative_identity,Y)),add(X,multiply(X,Y))).
% 48 [para:26.1.1,15.1.2.1,demod:21] equal(multiply(inverse(X),add(X,Y)),multiply(inverse(X),Y)).
% 54 [para:16.1.1,30.1.2.2] equal(add(X,multiply(additive_identity,additive_identity)),multiply(X,X)).
% 55 [para:17.1.1,30.1.1.2,demod:16] equal(X,multiply(X,add(X,multiplicative_identity))).
% 56 [para:30.1.2,20.1.1] -equal(add(a,multiply(additive_identity,b)),a).
% 65 [para:12.1.1,55.1.2.2] equal(X,multiply(X,add(multiplicative_identity,X))).
% 83 [para:54.1.1,12.1.1] equal(multiply(X,X),add(multiply(additive_identity,additive_identity),X)).
% 109 [para:29.1.1,48.1.1.1,demod:29] equal(multiply(additive_identity,add(multiplicative_identity,X)),multiply(additive_identity,X)).
% 111 [para:40.1.1,48.1.1.2,demod:109,29] equal(multiply(additive_identity,X),multiply(additive_identity,multiply(additive_identity,X))).
% 113 [para:48.1.1,65.1.2,demod:29] equal(additive_identity,multiply(additive_identity,additive_identity)).
% 115 [para:83.1.2,48.1.1.2,demod:25,24,113] equal(multiply(X,X),X).
% 118 [para:17.1.1,43.1.2.2,demod:17,42] equal(X,add(X,X)).
% 133 [para:118.1.2,30.1.2.2,demod:115] equal(add(X,multiply(additive_identity,X)),X).
% 146 [para:133.1.1,48.1.1.2,demod:26] equal(additive_identity,multiply(inverse(X),multiply(additive_identity,X))).
% 187 [para:111.1.2,35.1.1.2,demod:16,22] equal(multiplicative_identity,inverse(multiply(additive_identity,X))).
% 188 [para:111.1.2,146.1.2.2,demod:25,187] equal(additive_identity,multiply(additive_identity,X)).
% 192 [para:188.1.2,56.1.1.2,demod:16,cut:11] 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 3
% seconds given: 60
% 
% 
% ***GANDALF_FOUND_A_REFUTATION***
% 
% Global statistics over all passes: 
% 
%  given clauses:    95
%  derived clauses:   3692
%  kept clauses:      171
%  kept size sum:     1645
%  kept mid-nuclei:   0
%  kept new demods:   99
%  forw unit-subs:    2518
%  forw double-subs: 0
%  forw overdouble-subs: 0
%  backward subs:     7
%  fast unit cutoff:  1
%  full unit cutoff:  0
%  dbl  unit cutoff:  0
%  real runtime  :  0.4
%  process. runtime:  0.4
% 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/BOO/BOO009-4+eq_r.in")
% 
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