TSTP Solution File: SWC048-1 by Gandalf---c-2.6

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Gandalf---c-2.6
% Problem  : SWC048-1 : TPTP v3.4.2. Released v2.4.0.
% Transfm  : add_equality:r
% Format   : otter:hypothesis:set(auto),clear(print_given)
% Command  : gandalf-wrapper -time %d %s

% Computer : art06.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 19.5s
% Output   : Assurance 19.5s
% 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/SWC/SWC048-1+eq_r.in
% Using automatic strategy selection.
% Time limit in seconds: 600
% 
% prove-all-passes started
% 
% detected problem class: neq
% detected subclass: big
% 
% strategies selected: 
% (hyper 28 #f 5 19)
% (binary-unit 28 #f 5 19)
% (binary-double 11 #f 5 19)
% (binary-double 17 #f)
% (binary-double 17 #t)
% (binary 87 #t 5 19)
% (binary-order 28 #f 5 19)
% (binary-posweight-order 58 #f)
% (binary-posweight-lex-big-order 28 #f)
% (binary-posweight-lex-small-order 11 #f)
% (binary-order-sos 28 #t)
% (binary-unit-uniteq 28 #f)
% (binary-weightorder 28 #f)
% (binary-weightorder-sos 17 #f)
% (binary-order 28 #f)
% (hyper-order 17 #f)
% (binary 141 #t)
% 
% 
% ********* EMPTY CLAUSE DERIVED *********
% 
% 
% timer checkpoints: c(200,40,1,400,0,1,55636,4,2233,57628,5,2803,57629,1,2805,57629,50,2807,57629,40,2807,57829,0,2807)
% 
% 
% START OF PROOF
% 405 [?] ?
% 589 [?] ?
% 57638 [] ss^list(nil).
% 57687 [] segment^p(X,X) | -ss^list(X).
% 57689 [] rearseg^p(X,X) | -ss^list(X).
% 57710 [] -segment^p(nil,X) | equal(nil,X) | -ss^list(X).
% 57712 [] -rearseg^p(nil,X) | equal(nil,X) | -ss^list(X).
% 57818 [] ss^list(sk3).
% 57819 [] ss^list(sk4).
% 57820 [] equal(sk2,sk4).
% 57821 [] equal(sk1,sk3).
% 57823 [] equal(nil,sk2) | -neq(X,nil) | -rearseg^p(sk2,X) | -rearseg^p(sk1,X) | -ss^list(X).
% 57824 [] -equal(nil,sk1) | neq(sk2,nil).
% 57825 [] -equal(nil,sk1) | -neq(X,nil) | -rearseg^p(sk2,X) | -rearseg^p(sk1,X) | -ss^list(X).
% 57826 [] neq(sk3,nil) | equal(nil,sk4).
% 57827 [] rearseg^p(sk4,sk3) | equal(nil,sk4).
% 57829 [] rearseg^p(sk4,sk3) | equal(nil,sk3).
% 58611 [binary:57638,57825.5,cut:405,cut:589] -neq(nil,nil) | -equal(nil,sk1).
% 58621 [para:57820.1.2,57826.2.2] neq(sk3,nil) | equal(nil,sk2).
% 58628 [para:57820.1.2,57827.1.1] rearseg^p(sk2,sk3) | equal(nil,sk4).
% 58710 [binary:57819,57687.2] segment^p(sk4,sk4).
% 58813 [para:57820.1.2,58710.1.1] segment^p(sk2,sk4).
% 58820 [binary:57818,57689.2] rearseg^p(sk3,sk3).
% 58944 [para:57821.1.2,58820.1.1] rearseg^p(sk1,sk3).
% 59002 [binary:57823.4,58944,cut:57818,binarycut:58621] -rearseg^p(sk2,sk3) | equal(nil,sk2).
% 59435 [binary:57818,57712.3] -rearseg^p(nil,sk3) | equal(nil,sk3).
% 59875 [para:57820.1.2,58628.2.2,binarycut:59002] equal(nil,sk2).
% 59884 [para:59875.1.2,57824.2.1,binarycut:58611] -equal(nil,sk1).
% 59886 [para:59875.1.2,58813.1.1] segment^p(nil,sk4).
% 59933 [binary:57710,59886,cut:57819] equal(nil,sk4).
% 60024 [para:59933.1.2,57829.1.1,binarycut:59435] equal(nil,sk3).
% 60026 [para:57821.1.2,60024.1.2,cut:59884] contradiction
% END OF PROOF
% 
% Proof found by the following strategy:
% 
% using binary resolution
% not using sos strategy
% using unit 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 19
% clause depth limited to 5
% seconds given: 28
% 
% 
% ***GANDALF_FOUND_A_REFUTATION***
% 
% Global statistics over all passes: 
% 
%  given clauses:    329
%  derived clauses:   90473
%  kept clauses:      43572
%  kept size sum:     620325
%  kept mid-nuclei:   15211
%  kept new demods:   32383
%  forw unit-subs:    4107
%  forw double-subs: 2134
%  forw overdouble-subs: 450
%  backward subs:     27
%  fast unit cutoff:  1408
%  full unit cutoff:  0
%  dbl  unit cutoff:  142
%  real runtime  :  28.64
%  process. runtime:  28.17
% specific non-discr-tree subsumption statistics: 
%  tried:           46787
%  length fails:    242
%  strength fails:  16176
%  predlist fails:  6377
%  aux str. fails:  2089
%  by-lit fails:    934
%  full subs tried: 20045
%  full subs fail:  19291
% 
% ; 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/SWC/SWC048-1+eq_r.in")
% 
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