%------------------------------------------------------------------------------
% File     : Gandalf---c-2.6
% Problem  : PUZ028-5 : TPTP v3.4.2. Released v2.0.0.
% 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 119.5s
% Output   : Assurance 119.5s
% 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/PUZ/PUZ028-5+noeq.in
% Using automatic strategy selection.
% Time limit in seconds: 600
% 
% prove-all-passes started
% 
% detected problem class: nne
% detected subclass: medium
% 
% strategies selected: 
% (hyper 27 #f 1 9)
% (binary-unit 10 #f 1 9)
% (binary-double 16 #f 1 9)
% (binary 54 #t 1 9)
% (binary-order 27 #f 1 9)
% (binary-posweight-order 125 #f)
% (binary-order-sos 54 #t)
% (binary-unit-uniteq 27 #f)
% (binary-weightorder 54 #f)
% (binary-order 54 #f)
% (hyper-order 43 #f)
% (binary 109 #t)
% 
% 
% ********* EMPTY CLAUSE DERIVED *********
% 
% 
% timer checkpoints: c(15,40,1,30,0,1,87641,4,2033,121290,5,2702,121290,1,2702,121290,50,2703,121290,40,2703,121305,0,2703,121502,50,2703,121517,0,2703,121714,50,2704,121729,0,2709,121926,50,2709,121941,0,2709,122138,50,2710,122153,0,2710,122350,50,2710,122365,0,2713,122562,50,2714,122577,0,2714,122774,50,2714,122789,0,2718,122986,50,2719,123001,0,2719,123198,50,2719,123213,0,2719,123410,50,2720,123425,0,2723,123622,50,2724,123637,0,2724,123834,50,2724,123849,0,2728,124046,50,2729,124061,0,2729,124258,50,2729,124273,0,2729,124470,50,2730,124485,0,2733,124682,50,2733,124697,0,2733,124894,50,2734,124909,0,2738,125106,50,2739,125121,0,2739,125318,50,2739,125333,0,2739,125530,50,2740,125545,0,2744,125742,50,2744,125742,40,2744,125757,0,2744,126808,50,2755,126823,0,2759,127874,50,2769,127889,0,2769,132292,50,2843,132307,0,2843,136710,50,2917,136725,0,2917,141128,50,2988,141143,0,2988,145546,50,3064,145561,0,3064,149964,50,3136,149979,0,3136,154382,50,3208,154397,0,3212,158800,50,3285,158815,0,3285,163218,50,3358,163233,0,3358,167636,50,3435,167651,0,3435,172054,50,3509,172069,0,3509,176472,50,3586,176472,40,3586,176487,0,3586,230315,3,6293,230823,4,7637,231808,1,8987,231808,50,8989,231808,40,8989,231823,0,8989,278783,3,10347,279390,4,11015,280084,1,11690,280084,50,11691,280084,40,11691,280099,0,11691)
% 
% 
% START OF PROOF
% 280085 [] person(one).
% 280086 [] person(two).
% 280087 [] person(three).
% 280088 [] person(four).
% 280089 [] person(five).
% 280090 [] person(six).
% 280091 [] after(one,two).
% 280092 [] after(two,three).
% 280093 [] after(three,four).
% 280094 [] after(four,five).
% 280095 [] after(five,six).
% 280096 [] -after(Z,X) | -after(X,Y) | after(Z,Y).
% 280097 [] -after(X,Y) | not_familiar(X,Y) | familiar(X,Y) | -person(Y) | -person(X).
% 280098 [] -familiar(Z,Y) | -familiar(X,Y) | -familiar(X,Z).
% 280099 [] -not_familiar(Z,Y) | -not_familiar(X,Y) | -not_familiar(X,Z).
% 280107 [binary:280091,280096] -after(two,X) | after(one,X).
% 280108 [binary:280092,280096] -after(three,X) | after(two,X).
% 280109 [binary:280093,280096] -after(four,X) | after(three,X).
% 280110 [binary:280094,280096] -after(five,X) | after(four,X).
% 280113 [binary:280092,280107] after(one,three).
% 280115 [binary:280091,280097,cut:280086,cut:280085] not_familiar(one,two) | familiar(one,two).
% 280116 [binary:280092,280097,cut:280087,cut:280086] not_familiar(two,three) | familiar(two,three).
% 280117 [binary:280093,280097,cut:280088,cut:280087] not_familiar(three,four) | familiar(three,four).
% 280118 [binary:280094,280097,cut:280089,cut:280088] not_familiar(four,five) | familiar(four,five).
% 280119 [binary:280095,280097,cut:280090,cut:280089] not_familiar(five,six) | familiar(five,six).
% 280121 [binary:280097,280113,cut:280087,cut:280085] not_familiar(one,three) | familiar(one,three).
% 280123 [binary:280093,280108] after(two,four).
% 280125 [binary:280107,280123] after(one,four).
% 280126 [binary:280097,280123,cut:280088,cut:280086] not_familiar(two,four) | familiar(two,four).
% 280128 [binary:280097,280125,cut:280088,cut:280085] not_familiar(one,four) | familiar(one,four).
% 280130 [binary:280094,280109] after(three,five).
% 280132 [binary:280095,280110] after(four,six).
% 280134 [binary:280097,280130,cut:280089,cut:280087] not_familiar(three,five) | familiar(three,five).
% 280135 [binary:280108,280130] after(two,five).
% 280137 [binary:280097,280132,cut:280090,cut:280088] not_familiar(four,six) | familiar(four,six).
% 280138 [binary:280109,280132] after(three,six).
% 280140 [binary:280107,280135] after(one,five).
% 280141 [binary:280097,280135,cut:280089,cut:280086] not_familiar(two,five) | familiar(two,five).
% 280143 [binary:280097,280138,cut:280090,cut:280087] not_familiar(three,six) | familiar(three,six).
% 280144 [binary:280108,280138] after(two,six).
% 280146 [binary:280097,280140,cut:280089,cut:280085] not_familiar(one,five) | familiar(one,five).
% 280149 [binary:280107,280144] after(one,six).
% 280150 [binary:280097,280144,cut:280090,cut:280086] not_familiar(two,six) | familiar(two,six).
% 280152 [binary:280097,280149,cut:280090,cut:280085] not_familiar(one,six) | familiar(one,six).
% 280163 [binary:280098,280116.2] not_familiar(two,three) | -familiar(X,three) | -familiar(X,two).
% 280164 [binary:280099,280116] familiar(two,three) | -not_familiar(X,three) | -not_familiar(X,two).
% 280167 [binary:280098,280117.2] not_familiar(three,four) | -familiar(X,four) | -familiar(X,three).
% 280168 [binary:280099,280117] familiar(three,four) | -not_familiar(X,four) | -not_familiar(X,three).
% 280174 [binary:280098,280118.2] not_familiar(four,five) | -familiar(X,five) | -familiar(X,four).
% 280175 [binary:280099,280118] familiar(four,five) | -not_familiar(X,five) | -not_familiar(X,four).
% 280177 [binary:280098,280119.2] not_familiar(five,six) | -familiar(X,six) | -familiar(X,five).
% 280178 [binary:280099,280119] familiar(five,six) | -not_familiar(X,six) | -not_familiar(X,five).
% 280183 [binary:280098,280126.2] not_familiar(two,four) | -familiar(X,four) | -familiar(X,two).
% 280189 [binary:280098,280134.2] not_familiar(three,five) | -familiar(X,five) | -familiar(X,three).
% 280190 [binary:280099,280134] familiar(three,five) | -not_familiar(X,five) | -not_familiar(X,three).
% 280192 [binary:280098,280137.2] not_familiar(four,six) | -familiar(X,six) | -familiar(X,four).
% 280195 [binary:280098,280141.2] not_familiar(two,five) | -familiar(X,five) | -familiar(X,two).
% 280196 [binary:280099,280141] familiar(two,five) | -not_familiar(X,five) | -not_familiar(X,two).
% 280200 [binary:280099,280143] familiar(three,six) | -not_familiar(X,six) | -not_familiar(X,three).
% 280205 [binary:280098,280150.2] not_familiar(two,six) | -familiar(X,six) | -familiar(X,two).
% 280211 [binary:280121.2,280163.2] -familiar(one,two) | not_familiar(one,three) | not_familiar(two,three).
% 280215 [binary:280126.2,280167.2] -familiar(two,three) | not_familiar(two,four) | not_familiar(three,four).
% 280216 [binary:280128.2,280167.2] -familiar(one,three) | not_familiar(one,four) | not_familiar(three,four).
% 280221 [binary:280134.2,280174.2] -familiar(three,four) | not_familiar(three,five) | not_familiar(four,five).
% 280222 [binary:280141.2,280174.2] -familiar(two,four) | not_familiar(two,five) | not_familiar(four,five).
% 280223 [binary:280146.2,280174.2] -familiar(one,four) | not_familiar(one,five) | not_familiar(four,five).
% 280225 [binary:280134,280175.2] -not_familiar(three,four) | familiar(three,five) | familiar(four,five).
% 280226 [binary:280141,280175.2] -not_familiar(two,four) | familiar(two,five) | familiar(four,five).
% 280227 [binary:280146,280175.2] -not_familiar(one,four) | familiar(one,five) | familiar(four,five).
% 280229 [binary:280137.2,280177.2] -familiar(four,five) | not_familiar(four,six) | not_familiar(five,six).
% 280235 [binary:280143,280178.2] -not_familiar(three,five) | familiar(three,six) | familiar(five,six).
% 280236 [binary:280150,280178.2] -not_familiar(two,five) | familiar(two,six) | familiar(five,six).
% 280237 [binary:280152,280178.2] -not_familiar(one,five) | familiar(one,six) | familiar(five,six).
% 280244 [binary:280128.2,280183.2] -familiar(one,two) | not_familiar(one,four) | not_familiar(two,four).
% 280256 [binary:280141.2,280189.2] -familiar(two,three) | not_familiar(two,five) | not_familiar(three,five).
% 280257 [binary:280146.2,280189.2] -familiar(one,three) | not_familiar(one,five) | not_familiar(three,five).
% 280260 [binary:280141,280190.2] -not_familiar(two,three) | familiar(two,five) | familiar(three,five).
% 280261 [binary:280146,280190.2] -not_familiar(one,three) | familiar(one,five) | familiar(three,five).
% 280264 [binary:280143.2,280192.2] -familiar(three,four) | not_familiar(three,six) | not_familiar(four,six).
% 280265 [binary:280150.2,280192.2] -familiar(two,four) | not_familiar(two,six) | not_familiar(four,six).
% 280266 [binary:280152.2,280192.2] -familiar(one,four) | not_familiar(one,six) | not_familiar(four,six).
% 280275 [binary:280146.2,280195.2] -familiar(one,two) | not_familiar(one,five) | not_familiar(two,five).
% 280279 [binary:280146,280196.2] -not_familiar(one,two) | familiar(one,five) | familiar(two,five).
% 280302 [binary:280152.2,280205.2] -familiar(one,two) | not_familiar(one,six) | not_familiar(two,six).
% 280319 [binary:280115.2,280211] not_familiar(two,three) | not_familiar(one,two) | not_familiar(one,three).
% 280323 [binary:280116.2,280215] not_familiar(three,four) | not_familiar(two,three) | not_familiar(two,four).
% 280325 [binary:280121.2,280216] not_familiar(three,four) | not_familiar(one,three) | not_familiar(one,four).
% 280331 [binary:280117.2,280221] not_familiar(four,five) | not_familiar(three,four) | not_familiar(three,five).
% 280333 [binary:280126.2,280222] not_familiar(four,five) | not_familiar(two,four) | not_familiar(two,five).
% 280335 [binary:280128.2,280223] not_familiar(four,five) | not_familiar(one,four) | not_familiar(one,five).
% 280337 [binary:280117,280225] familiar(four,five) | familiar(three,four) | familiar(three,five).
% 280339 [binary:280126,280226] familiar(four,five) | familiar(two,four) | familiar(two,five).
% 280341 [binary:280128,280227] familiar(four,five) | familiar(one,four) | familiar(one,five).
% 280343 [binary:280118.2,280229] not_familiar(five,six) | not_familiar(four,five) | not_familiar(four,six).
% 280353 [binary:280134,280235] familiar(five,six) | familiar(three,five) | familiar(three,six).
% 280355 [binary:280141,280236] familiar(five,six) | familiar(two,five) | familiar(two,six).
% 280357 [binary:280146,280237] familiar(five,six) | familiar(one,five) | familiar(one,six).
% 280362 [binary:280115.2,280244] not_familiar(two,four) | not_familiar(one,two) | not_familiar(one,four).
% 280372 [binary:280116.2,280256] not_familiar(three,five) | not_familiar(two,three) | not_familiar(two,five).
% 280374 [binary:280121.2,280257] not_familiar(three,five) | not_familiar(one,three) | not_familiar(one,five).
% 280377 [binary:280116,280260] familiar(three,five) | familiar(two,three) | familiar(two,five).
% 280379 [binary:280121,280261] familiar(three,five) | familiar(one,three) | familiar(one,five).
% 280382 [binary:280117.2,280264] not_familiar(four,six) | not_familiar(three,four) | not_familiar(three,six).
% 280384 [binary:280126.2,280265] not_familiar(four,six) | not_familiar(two,four) | not_familiar(two,six).
% 280386 [binary:280128.2,280266] not_familiar(four,six) | not_familiar(one,four) | not_familiar(one,six).
% 280397 [binary:280115.2,280275] not_familiar(two,five) | not_familiar(one,two) | not_familiar(one,five).
% 280401 [binary:280115,280279] familiar(two,five) | familiar(one,two) | familiar(one,five).
% 280424 [binary:280115.2,280302] not_familiar(two,six) | not_familiar(one,two) | not_familiar(one,six).
% 280445 [binary:280260,280319] not_familiar(one,two) | not_familiar(one,three) | familiar(two,five) | familiar(three,five).
% 280466 [binary:280099,280323.2] not_familiar(three,four) | not_familiar(two,four) | -not_familiar(X,three) | -not_familiar(X,two).
% 280467 [binary:280099,280323.3] not_familiar(two,three) | not_familiar(three,four) | -not_familiar(X,four) | -not_familiar(X,two).
% 280518 [binary:280099,280331.2] not_familiar(four,five) | not_familiar(three,five) | -not_familiar(X,four) | -not_familiar(X,three).
% 280519 [binary:280099,280331.3] not_familiar(three,four) | not_familiar(four,five) | -not_familiar(X,five) | -not_familiar(X,three).
% 280527 [binary:280235,280331.3] not_familiar(three,four) | not_familiar(four,five) | familiar(three,six) | familiar(five,six).
% 280530 [binary:280099,280333] not_familiar(two,four) | not_familiar(two,five) | -not_familiar(X,five) | -not_familiar(X,four).
% 280531 [binary:280099,280333.2] not_familiar(four,five) | not_familiar(two,five) | -not_familiar(X,four) | -not_familiar(X,two).
% 280532 [binary:280099,280333.3] not_familiar(two,four) | not_familiar(four,five) | -not_familiar(X,five) | -not_familiar(X,two).
% 280540 [binary:280236,280333.3] not_familiar(two,four) | not_familiar(four,five) | familiar(two,six) | familiar(five,six).
% 280553 [binary:280237,280335.3] not_familiar(one,four) | not_familiar(four,five) | familiar(one,six) | familiar(five,six).
% 280557 [binary:280098,280337.2] familiar(four,five) | familiar(three,five) | -familiar(X,four) | -familiar(X,three).
% 280595 [binary:280099,280343] not_familiar(four,five) | not_familiar(four,six) | -not_familiar(X,six) | -not_familiar(X,five).
% 280662 [binary:280098,280353.3] familiar(three,five) | familiar(five,six) | -familiar(X,six) | -familiar(X,three).
% 280665 [binary:280192.2,280353.3] -familiar(three,four) | not_familiar(four,six) | familiar(three,five) | familiar(five,six).
% 280675 [binary:280098,280355.3] familiar(two,five) | familiar(five,six) | -familiar(X,six) | -familiar(X,two).
% 280679 [binary:280192.2,280355.3] -familiar(two,four) | not_familiar(four,six) | familiar(two,five) | familiar(five,six).
% 280692 [binary:280192.2,280357.3] -familiar(one,four) | not_familiar(four,six) | familiar(one,five) | familiar(five,six).
% 280739 [binary:280175.2,280374] -not_familiar(three,four) | not_familiar(one,three) | not_familiar(one,five) | familiar(four,five).
% 280787 [binary:280178.2,280384] -not_familiar(four,five) | not_familiar(two,four) | not_familiar(two,six) | familiar(five,six).
% 280863 [binary:280302,280401.2] not_familiar(one,six) | not_familiar(two,six) | familiar(two,five) | familiar(one,five).
% 280912 [binary:280178.2,280424] -not_familiar(two,five) | not_familiar(one,two) | not_familiar(one,six) | familiar(five,six).
% 280941 [binary:280325.2,280466.3] -not_familiar(one,two) | not_familiar(three,four) | not_familiar(one,four) | not_familiar(two,four).
% 280963 [binary:280325.3,280467.3] -not_familiar(one,two) | not_familiar(one,three) | not_familiar(three,four) | not_familiar(two,three).
% 281054 [binary:280333.2,280518.3] -not_familiar(two,three) | not_familiar(four,five) | not_familiar(two,five) | not_familiar(three,five).
% 281055 [binary:280335.2,280518.3] -not_familiar(one,three) | not_familiar(four,five) | not_familiar(one,five) | not_familiar(three,five).
% 281063 [binary:280333.3,280519.3] -not_familiar(two,three) | not_familiar(two,four) | not_familiar(four,five) | not_familiar(three,four).
% 281064 [binary:280335.3,280519.3] -not_familiar(one,three) | not_familiar(one,four) | not_familiar(four,five) | not_familiar(three,four).
% 281074 [binary:280372,280530.3] -not_familiar(three,four) | not_familiar(two,three) | not_familiar(two,five) | not_familiar(two,four).
% 281084 [binary:280335.2,280531.3] -not_familiar(one,two) | not_familiar(four,five) | not_familiar(one,five) | not_familiar(two,five).
% 281098 [binary:280261,280445.2] not_familiar(one,two) | familiar(one,five) | familiar(three,five) | familiar(two,five).
% 281106 [binary:280335.3,280532.3] -not_familiar(one,two) | not_familiar(one,four) | not_familiar(four,five) | not_familiar(two,four).
% 281166 [binary:280339.2,280557.3] -familiar(two,three) | familiar(four,five) | familiar(two,five) | familiar(three,five).
% 281167 [binary:280341.2,280557.3] -familiar(one,three) | familiar(four,five) | familiar(one,five) | familiar(three,five).
% 281274 [binary:280382.3,280595.3] -not_familiar(three,five) | not_familiar(three,four) | not_familiar(four,six) | not_familiar(four,five).
% 281275 [binary:280384.3,280595.3] -not_familiar(two,five) | not_familiar(two,four) | not_familiar(four,six) | not_familiar(four,five).
% 281276 [binary:280386.3,280595.3] -not_familiar(one,five) | not_familiar(one,four) | not_familiar(four,six) | not_familiar(four,five).
% 286272 [binary:280362.2,280941] not_familiar(two,four) | not_familiar(one,four) | not_familiar(three,four).
% 286347 [binary:280319.2,280963] not_familiar(two,three) | not_familiar(one,three) | not_familiar(three,four).
% 286989 [binary:280372.2,281054] not_familiar(three,five) | not_familiar(two,five) | not_familiar(four,five).
% 286996 [binary:280099,286989] not_familiar(two,five) | not_familiar(four,five) | -not_familiar(X,five) | -not_familiar(X,three).
% 287058 [binary:280374.2,281055] not_familiar(three,five) | not_familiar(one,five) | not_familiar(four,five).
% 287064 [binary:280099,287058] not_familiar(one,five) | not_familiar(four,five) | -not_familiar(X,five) | -not_familiar(X,three).
% 287227 [binary:280323.2,281063] not_familiar(three,four) | not_familiar(two,four) | not_familiar(four,five).
% 287229 [binary:280099,287227] not_familiar(two,four) | not_familiar(four,five) | -not_familiar(X,four) | -not_familiar(X,three).
% 287230 [binary:280099,287227.2] not_familiar(three,four) | not_familiar(four,five) | -not_familiar(X,four) | -not_familiar(X,two).
% 287231 [binary:280099,287227.3] not_familiar(two,four) | not_familiar(three,four) | -not_familiar(X,five) | -not_familiar(X,four).
% 287284 [binary:280325.2,281064] not_familiar(three,four) | not_familiar(one,four) | not_familiar(four,five).
% 287288 [binary:280099,287284.3] not_familiar(one,four) | not_familiar(three,four) | -not_familiar(X,five) | -not_familiar(X,four).
% 287314 [binary:287230.3,287284.2] -not_familiar(one,two) | not_familiar(three,four) | not_familiar(four,five).
% 287316 [binary:280115,287314] not_familiar(four,five) | not_familiar(three,four) | familiar(one,two).
% 287424 [binary:280323,281074] not_familiar(two,three) | not_familiar(two,four) | not_familiar(two,five).
% 287428 [binary:280099,287424.3] not_familiar(two,four) | not_familiar(two,three) | -not_familiar(X,five) | -not_familiar(X,two).
% 287540 [binary:280397.2,281084] not_familiar(two,five) | not_familiar(one,five) | not_familiar(four,five).
% 287563 [binary:286996.3,287540.2] -not_familiar(one,three) | not_familiar(two,five) | not_familiar(four,five).
% 287564 [binary:287064.3,287540] -not_familiar(two,three) | not_familiar(one,five) | not_familiar(four,five).
% 287566 [binary:280121,287563] not_familiar(four,five) | not_familiar(two,five) | familiar(one,three).
% 287579 [binary:280116,287564] not_familiar(four,five) | not_familiar(one,five) | familiar(two,three).
% 287769 [binary:280279,281098] familiar(one,five) | familiar(two,five) | familiar(three,five).
% 287873 [binary:280362.2,281106] not_familiar(two,four) | not_familiar(one,four) | not_familiar(four,five).
% 287901 [binary:287229.3,287873.2] -not_familiar(one,three) | not_familiar(two,four) | not_familiar(four,five).
% 287905 [binary:280121,287901] not_familiar(four,five) | not_familiar(two,four) | familiar(one,three).
% 288575 [binary:280377.2,281166] familiar(three,five) | familiar(two,five) | familiar(four,five).
% 288579 [binary:280098,288575.3] familiar(two,five) | familiar(three,five) | -familiar(X,five) | -familiar(X,four).
% 288634 [binary:287769,288579.3] -familiar(one,four) | familiar(two,five) | familiar(three,five).
% 288636 [binary:280128.2,288634] not_familiar(one,four) | familiar(three,five) | familiar(two,five).
% 288722 [binary:280379.2,281167] familiar(three,five) | familiar(one,five) | familiar(four,five).
% 288726 [binary:280098,288722.3] familiar(one,five) | familiar(three,five) | -familiar(X,five) | -familiar(X,four).
% 288827 [binary:287769.2,288726.3] -familiar(two,four) | familiar(one,five) | familiar(three,five).
% 288829 [binary:280126.2,288827] not_familiar(two,four) | familiar(three,five) | familiar(one,five).
% 290163 [binary:280331.3,281274] not_familiar(three,four) | not_familiar(four,five) | not_familiar(four,six).
% 290165 [binary:280099,290163] not_familiar(four,five) | not_familiar(four,six) | -not_familiar(X,four) | -not_familiar(X,three).
% 290240 [binary:280333.3,281275] not_familiar(two,four) | not_familiar(four,five) | not_familiar(four,six).
% 290242 [binary:280099,290240] not_familiar(four,five) | not_familiar(four,six) | -not_familiar(X,four) | -not_familiar(X,two).
% 290272 [binary:290165.3,290240] -not_familiar(two,three) | not_familiar(four,five) | not_familiar(four,six).
% 290274 [binary:280116,290272] not_familiar(four,six) | not_familiar(four,five) | familiar(two,three).
% 290290 [binary:280098,290274.3] not_familiar(four,five) | not_familiar(four,six) | -familiar(X,three) | -familiar(X,two).
% 290430 [binary:280335.3,281276] not_familiar(one,four) | not_familiar(four,five) | not_familiar(four,six).
% 290461 [binary:290165.3,290430] -not_familiar(one,three) | not_familiar(four,five) | not_familiar(four,six).
% 290462 [binary:290242.3,290430] -not_familiar(one,two) | not_familiar(four,five) | not_familiar(four,six).
% 290464 [binary:280121,290461] not_familiar(four,six) | not_familiar(four,five) | familiar(one,three).
% 290480 [binary:280115,290462] not_familiar(four,six) | not_familiar(four,five) | familiar(one,two).
% 290519 [binary:290290.3,290464.3] -familiar(one,two) | not_familiar(four,five) | not_familiar(four,six).
% 290549 [binary:290480.3,290519] not_familiar(four,five) | not_familiar(four,six).
% 290551 [binary:280099,290549] not_familiar(four,six) | -not_familiar(X,five) | -not_familiar(X,four).
% 290552 [binary:280099,290549.2] not_familiar(four,five) | -not_familiar(X,six) | -not_familiar(X,four).
% 290572 [binary:280134,290551.2] -not_familiar(three,four) | not_familiar(four,six) | familiar(three,five).
% 290573 [binary:280141,290551.2] -not_familiar(two,four) | not_familiar(four,six) | familiar(two,five).
% 290574 [binary:280146,290551.2] -not_familiar(one,four) | not_familiar(four,six) | familiar(one,five).
% 290607 [binary:280143,290552.2] -not_familiar(three,four) | not_familiar(four,five) | familiar(three,six).
% 290608 [binary:280150,290552.2] -not_familiar(two,four) | not_familiar(four,five) | familiar(two,six).
% 290609 [binary:280152,290552.2] -not_familiar(one,four) | not_familiar(four,five) | familiar(one,six).
% 290650 [binary:280117,290572] not_familiar(four,six) | familiar(three,five) | familiar(three,four).
% 290653 [binary:280382.2,290572] not_familiar(four,six) | not_familiar(three,six) | familiar(three,five).
% 290663 [binary:280126,290573] not_familiar(four,six) | familiar(two,five) | familiar(two,four).
% 290666 [binary:280384.2,290573] not_familiar(four,six) | not_familiar(two,six) | familiar(two,five).
% 290676 [binary:280128,290574] not_familiar(four,six) | familiar(one,five) | familiar(one,four).
% 290679 [binary:280386.2,290574] not_familiar(four,six) | not_familiar(one,six) | familiar(one,five).
% 290698 [binary:280527,290607] not_familiar(four,five) | familiar(three,six) | familiar(five,six).
% 290711 [binary:280540,290608] not_familiar(four,five) | familiar(two,six) | familiar(five,six).
% 290726 [binary:280553,290609] not_familiar(four,five) | familiar(one,six) | familiar(five,six).
% 290758 [binary:280665,290650.3] not_familiar(four,six) | familiar(three,five) | familiar(five,six).
% 290832 [binary:280679,290663.3] not_familiar(four,six) | familiar(two,five) | familiar(five,six).
% 290841 [binary:280099,290666] not_familiar(two,six) | familiar(two,five) | -not_familiar(X,six) | -not_familiar(X,four).
% 290902 [binary:280692,290676.3] not_familiar(four,six) | familiar(one,five) | familiar(five,six).
% 290912 [binary:280099,290679] not_familiar(one,six) | familiar(one,five) | -not_familiar(X,six) | -not_familiar(X,four).
% 291018 [binary:280098,290698.2] not_familiar(four,five) | familiar(five,six) | -familiar(X,six) | -familiar(X,three).
% 291451 [binary:280178.2,290758] -not_familiar(four,five) | familiar(five,six) | familiar(three,five).
% 291506 [binary:280178.2,290832] -not_familiar(four,five) | familiar(five,six) | familiar(two,five).
% 291559 [binary:280178.2,290902] -not_familiar(four,five) | familiar(five,six) | familiar(one,five).
% 291780 [binary:290726,291451] familiar(one,six) | familiar(five,six) | familiar(three,five).
% 291802 [binary:290726,291506] familiar(one,six) | familiar(five,six) | familiar(two,five).
% 291915 [binary:280662.3,291780] -familiar(one,three) | familiar(three,five) | familiar(five,six).
% 292009 [binary:280675.3,291802] -familiar(one,two) | familiar(two,five) | familiar(five,six).
% 292125 [binary:280121.2,291915] not_familiar(one,three) | familiar(five,six) | familiar(three,five).
% 292149 [binary:280115.2,292009] not_familiar(one,two) | familiar(five,six) | familiar(two,five).
% 293204 [binary:290711.2,291018.3] -familiar(two,three) | not_familiar(four,five) | familiar(five,six).
% 293207 [binary:290726.2,291018.3] -familiar(one,three) | not_familiar(four,five) | familiar(five,six).
% 293218 [binary:287579.3,293204] not_familiar(one,five) | not_familiar(four,five) | familiar(five,six).
% 293222 [binary:280121.2,293207] not_familiar(one,three) | not_familiar(four,five) | familiar(five,six).
% 293230 [binary:287566.3,293207] not_familiar(two,five) | not_familiar(four,five) | familiar(five,six).
% 293231 [binary:287905.3,293207] not_familiar(two,four) | not_familiar(four,five) | familiar(five,six).
% 293288 [binary:291451,293218.2] not_familiar(one,five) | familiar(five,six) | familiar(three,five).
% 293289 [binary:291506,293218.2] not_familiar(one,five) | familiar(five,six) | familiar(two,five).
% 293340 [binary:291559,293222.2] not_familiar(one,three) | familiar(five,six) | familiar(one,five).
% 293365 [binary:291559,293230.2] not_familiar(two,five) | familiar(five,six) | familiar(one,five).
% 293383 [binary:280787,293231.2] not_familiar(two,six) | not_familiar(two,four) | familiar(five,six).
% 293457 [binary:280190.2,293288] -not_familiar(one,three) | familiar(three,five) | familiar(five,six).
% 293472 [binary:280196.2,293289] -not_familiar(one,two) | familiar(two,five) | familiar(five,six).
% 293631 [binary:280195.2,293365.3] -familiar(one,two) | not_familiar(two,five) | familiar(five,six).
% 293659 [binary:280178.2,293383] -not_familiar(two,five) | not_familiar(two,four) | familiar(five,six).
% 293717 [binary:292125,293457] familiar(five,six) | familiar(three,five).
% 293720 [binary:280098,293717.2] familiar(five,six) | -familiar(X,five) | -familiar(X,three).
% 293822 [binary:293340.3,293720.2] -familiar(one,three) | not_familiar(one,three) | familiar(five,six).
% 293838 [binary:292149,293472] familiar(five,six) | familiar(two,five).
% 293856 [binary:293720.2,293838.2] -familiar(two,three) | familiar(five,six).
% 293858 [binary:280116.2,293856] not_familiar(two,three) | familiar(five,six).
% 294281 [binary:280121.2,293822] not_familiar(one,three) | familiar(five,six).
% 294286 [binary:280164.2,294281,binarycut:293856] -not_familiar(one,two) | familiar(five,six).
% 294298 [binary:280115,294286] familiar(five,six) | familiar(one,two).
% 294328 [binary:293631,294298.2] not_familiar(two,five) | familiar(five,six).
% 294355 [binary:280912,294328,binarycut:294286] not_familiar(one,six) | familiar(five,six).
% 294365 [binary:293659,294328] not_familiar(two,four) | familiar(five,six).
% 294369 [binary:280178.2,294355] -not_familiar(one,five) | familiar(five,six).
% 294374 [binary:280200.2,294355,binarycut:294281] familiar(three,six) | familiar(five,six).
% 294393 [binary:280168.2,294365,binarycut:293858] familiar(three,four) | familiar(five,six).
% 294412 [binary:287579.2,294369,binarycut:293856] not_familiar(four,five) | familiar(five,six).
% 294418 [binary:280192.2,294374,binarycut:294393] not_familiar(four,six) | familiar(five,six).
% 294495 [binary:280178.2,294418,binarycut:294412] familiar(five,six).
% 294500 [binary:280098,294495] -familiar(X,six) | -familiar(X,five).
% 294506 [binary:280137.2,294500] -familiar(four,five) | not_familiar(four,six).
% 294507 [binary:280143.2,294500] -familiar(three,five) | not_familiar(three,six).
% 294508 [binary:280150.2,294500] -familiar(two,five) | not_familiar(two,six).
% 294509 [binary:280152.2,294500] -familiar(one,five) | not_familiar(one,six).
% 294607 [binary:290653.3,294507] not_familiar(three,six) | not_familiar(four,six).
% 294611 [binary:280141.2,294508] not_familiar(two,six) | not_familiar(two,five).
% 294619 [binary:280863.3,294508,binarycut:294509] not_familiar(one,six) | not_familiar(two,six).
% 294626 [binary:290666.3,294508] not_familiar(two,six) | not_familiar(four,six).
% 294628 [binary:280146.2,294509] not_familiar(one,six) | not_familiar(one,five).
% 294641 [binary:290679.3,294509] not_familiar(one,six) | not_familiar(four,six).
% 294685 [binary:280099,294607] not_familiar(four,six) | -not_familiar(X,six) | -not_familiar(X,three).
% 294759 [binary:290841.3,294619,binarycut:294508] -not_familiar(one,four) | not_familiar(two,six).
% 294763 [binary:290912.3,294619.2,binarycut:294509] -not_familiar(two,four) | not_familiar(one,six).
% 294817 [binary:280128,294759] not_familiar(two,six) | familiar(one,four).
% 294837 [binary:288636,294759,binarycut:294508] not_familiar(two,six) | familiar(three,five).
% 294840 [binary:280126,294763] not_familiar(one,six) | familiar(two,four).
% 294860 [binary:288829,294763,binarycut:294509] not_familiar(one,six) | familiar(three,five).
% 294910 [binary:294507,294837.2] not_familiar(two,six) | not_familiar(three,six).
% 294962 [binary:294507,294860.2] not_familiar(one,six) | not_familiar(three,six).
% 295055 [binary:294626,294685.2] -not_familiar(two,three) | not_familiar(four,six).
% 295057 [binary:294641,294685.2] -not_familiar(one,three) | not_familiar(four,six).
% 295061 [binary:280319,295055,binarycut:295057] not_familiar(one,two) | not_familiar(four,six).
% 295071 [binary:286347,295055,binarycut:295057] not_familiar(three,four) | not_familiar(four,six).
% 295116 [binary:280739,295071,binarycut:295057,binarycut:294506] not_familiar(one,five) | not_familiar(four,six).
% 295180 [?] ?
% 295198 [binary:287428.3,295116,binarycut:295061,binarycut:295180,binarycut:295055] not_familiar(four,six).
% 295200 [binary:280099,295198] -not_familiar(X,six) | -not_familiar(X,four).
% 295211 [binary:294611,295200] -not_familiar(two,four) | not_familiar(two,five).
% 295212 [binary:294628,295200] -not_familiar(one,four) | not_familiar(one,five).
% 295213 [binary:294817,295200] -not_familiar(two,four) | familiar(one,four).
% 295215 [binary:294840,295200] -not_familiar(one,four) | familiar(two,four).
% 295217 [binary:294910,295200] -not_familiar(two,four) | not_familiar(three,six).
% 295218 [binary:294910.2,295200] -not_familiar(three,four) | not_familiar(two,six).
% 295219 [binary:294962,295200] -not_familiar(one,four) | not_familiar(three,six).
% 295220 [binary:294962.2,295200] -not_familiar(three,four) | not_familiar(one,six).
% 295301 [binary:280126,295211] not_familiar(two,five) | familiar(two,four).
% 295315 [binary:280128,295212] not_familiar(one,five) | familiar(one,four).
% 295362 [binary:280126,295217] not_familiar(three,six) | familiar(two,four).
% 295372 [binary:287873,295217,binarycut:295219] not_familiar(four,five) | not_familiar(three,six).
% 295384 [binary:286272.3,295218,binarycut:294759] not_familiar(two,four) | not_familiar(two,six).
% 295390 [binary:280128,295219] not_familiar(three,six) | familiar(one,four).
% 295402 [binary:286272.3,295220,binarycut:294763] not_familiar(one,four) | not_familiar(one,six).
% 295608 [binary:287288.3,295301,binarycut:280126,binarycut:295215] not_familiar(three,four) | familiar(two,four).
% 295664 [binary:287231.3,295315,binarycut:280128,binarycut:295213] not_familiar(three,four) | familiar(one,four).
% 295791 [binary:295200,295362,binarycut:295608] familiar(two,four).
% 295792 [binary:280098,295791] -familiar(X,four) | -familiar(X,two).
% 295833 [binary:295200,295372.2] -not_familiar(three,four) | not_familiar(four,five).
% 295884 [binary:295200,295390,binarycut:295664] familiar(one,four).
% 295890 [binary:295792,295884] -familiar(one,two).
% 295891 [binary:280115.2,295890] not_familiar(one,two).
% 295899 [binary:287316.3,295890,binarycut:295833] not_familiar(four,five).
% 295902 [binary:280099,295899] -not_familiar(X,five) | -not_familiar(X,four).
% 295919 [binary:294611.2,295902,binarycut:295384] not_familiar(two,six).
% 295921 [binary:294628.2,295902,binarycut:295402] not_familiar(one,six).
% 295925 [binary:280099,295919] -not_familiar(X,six) | -not_familiar(X,two).
% 295950 [binary:295921,295925,cut:295891] 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
% seconds given: 125
% 
% 
% ***GANDALF_FOUND_A_REFUTATION***
% 
% Global statistics over all passes: 
% 
%  given clauses:    21714
%  derived clauses:   1484467
%  kept clauses:      178273
%  kept size sum:     855298
%  kept mid-nuclei:   78258
%  kept new demods:   0
%  forw unit-subs:    324020
%  forw double-subs: 187544
%  forw overdouble-subs: 521655
%  backward subs:     34035
%  fast unit cutoff:  102488
%  full unit cutoff:  0
%  dbl  unit cutoff:  1783
%  real runtime  :  123.9
%  process. runtime:  122.44
% specific non-discr-tree subsumption statistics: 
%  tried:           63859615
%  length fails:    258109
%  strength fails:  23232635
%  predlist fails:  16812735
%  aux str. fails:  81976
%  by-lit fails:    14552753
%  full subs tried: 4523172
%  full subs fail:  4385695
% 
% ; 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/PUZ/PUZ028-5+noeq.in")
% 
%------------------------------------------------------------------------------