TSTP Solution File: NUM841+2 by Otter---3.3

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Otter---3.3
% Problem  : NUM841+2 : TPTP v8.1.0. Released v4.1.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : otter-tptp-script %s

% Computer : n013.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8042.1875MB
% OS       : Linux 3.10.0-693.el7.x86_64
% CPULimit : 300s
% WCLimit  : 300s
% DateTime : Wed Jul 27 13:10:04 EDT 2022

% Result   : Theorem 10.10s 10.31s
% Output   : Refutation 10.10s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   10
%            Number of leaves      :   13
% Syntax   : Number of clauses     :   31 (  23 unt;   2 nHn;  19 RR)
%            Number of literals    :   41 (  12 equ;  10 neg)
%            Maximal clause size   :    3 (   1 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :    4 (   2 usr;   1 prp; 0-2 aty)
%            Number of functors    :    6 (   6 usr;   4 con; 0-2 aty)
%            Number of variables   :   35 (   8 sgn)

% Comments : 
%------------------------------------------------------------------------------
cnf(1,axiom,
    ~ greater(vplus(vd344,vd347),vplus(vd345,vd348)),
    file('NUM841+2.p',unknown),
    [] ).

cnf(5,axiom,
    ( ~ less(A,B)
    | less(vplus(A,C),vplus(B,C)) ),
    file('NUM841+2.p',unknown),
    [] ).

cnf(8,axiom,
    ( ~ less(A,B)
    | greater(B,A) ),
    file('NUM841+2.p',unknown),
    [] ).

cnf(9,axiom,
    ( ~ greater(A,B)
    | less(B,A) ),
    file('NUM841+2.p',unknown),
    [] ).

cnf(10,axiom,
    ( ~ greater(A,B)
    | ~ less(A,B) ),
    file('NUM841+2.p',unknown),
    [] ).

cnf(11,axiom,
    ( ~ greater(A,B)
    | A = vplus(B,dollar_f1(B,A)) ),
    file('NUM841+2.p',unknown),
    [] ).

cnf(12,plain,
    ( ~ greater(A,B)
    | vplus(B,dollar_f1(B,A)) = A ),
    inference(flip,[status(thm),theory(equality)],[inference(copy,[status(thm)],[11])]),
    [iquote('copy,11,flip.2')] ).

cnf(17,axiom,
    vplus(vd348,vd345) = vplus(vd345,vd348),
    file('NUM841+2.p',unknown),
    [] ).

cnf(24,axiom,
    greater(vd347,vd348),
    file('NUM841+2.p',unknown),
    [] ).

cnf(25,axiom,
    greater(vd344,vd345),
    file('NUM841+2.p',unknown),
    [] ).

cnf(26,axiom,
    greater(vplus(A,B),A),
    file('NUM841+2.p',unknown),
    [] ).

cnf(27,axiom,
    ( A = B
    | greater(A,B)
    | less(A,B) ),
    file('NUM841+2.p',unknown),
    [] ).

cnf(28,axiom,
    vplus(A,B) = vplus(B,A),
    file('NUM841+2.p',unknown),
    [] ).

cnf(36,axiom,
    vplus(vplus(A,B),C) = vplus(A,vplus(B,C)),
    file('NUM841+2.p',unknown),
    [] ).

cnf(43,plain,
    vplus(vd348,dollar_f1(vd348,vd347)) = vd347,
    inference(hyper,[status(thm)],[24,12]),
    [iquote('hyper,24,12')] ).

cnf(49,plain,
    vplus(vd345,dollar_f1(vd345,vd344)) = vd344,
    inference(hyper,[status(thm)],[25,12]),
    [iquote('hyper,25,12')] ).

cnf(63,plain,
    less(A,vplus(A,B)),
    inference(hyper,[status(thm)],[26,9]),
    [iquote('hyper,26,9')] ).

cnf(83,plain,
    less(A,vplus(B,A)),
    inference(para_from,[status(thm),theory(equality)],[28,63]),
    [iquote('para_from,28.1.1,63.1.2')] ).

cnf(87,plain,
    ~ greater(vplus(vd347,vd344),vplus(vd345,vd348)),
    inference(para_from,[status(thm),theory(equality)],[28,1]),
    [iquote('para_from,28.1.1,1.1.1')] ).

cnf(92,plain,
    ( A = B
    | greater(A,B)
    | greater(B,A) ),
    inference(hyper,[status(thm)],[27,8]),
    [iquote('hyper,27,8')] ).

cnf(157,plain,
    vplus(dollar_f1(vd348,vd347),vd348) = vd347,
    inference(para_into,[status(thm),theory(equality)],[43,28]),
    [iquote('para_into,43.1.1,28.1.1')] ).

cnf(194,plain,
    less(A,vplus(B,vplus(C,A))),
    inference(para_from,[status(thm),theory(equality)],[36,83]),
    [iquote('para_from,35.1.1,83.1.2')] ).

cnf(243,plain,
    vplus(dollar_f1(vd345,vd344),vd345) = vd344,
    inference(para_into,[status(thm),theory(equality)],[49,28]),
    [iquote('para_into,49.1.1,28.1.1')] ).

cnf(938,plain,
    less(vd348,vplus(A,vd347)),
    inference(para_into,[status(thm),theory(equality)],[194,157]),
    [iquote('para_into,194.1.2.2,157.1.1')] ).

cnf(967,plain,
    less(vd348,vplus(vd347,A)),
    inference(para_into,[status(thm),theory(equality)],[938,28]),
    [iquote('para_into,938.1.2,28.1.1')] ).

cnf(1000,plain,
    less(vplus(vd348,A),vplus(vd347,vplus(B,A))),
    inference(demod,[status(thm),theory(equality)],[inference(hyper,[status(thm)],[967,5]),36]),
    [iquote('hyper,967,5,demod,36')] ).

cnf(4648,plain,
    less(vplus(vd345,vd348),vplus(vd347,vd344)),
    inference(demod,[status(thm),theory(equality)],[inference(para_into,[status(thm),theory(equality)],[1000,243]),17]),
    [iquote('para_into,1000.1.2.2,243.1.1,demod,17')] ).

cnf(4656,plain,
    vplus(vd347,vd344) = vplus(vd345,vd348),
    inference(unit_del,[status(thm)],[inference(hyper,[status(thm)],[4648,10,92]),87]),
    [iquote('hyper,4648,10,92,unit_del,87')] ).

cnf(4657,plain,
    greater(vplus(vd345,vd348),vplus(vd345,vd348)),
    inference(demod,[status(thm),theory(equality)],[inference(hyper,[status(thm)],[4648,8]),4656]),
    [iquote('hyper,4648,8,demod,4656')] ).

cnf(4684,plain,
    ~ greater(vplus(vd345,vd348),vplus(vd345,vd348)),
    inference(demod,[status(thm),theory(equality)],[inference(back_demod,[status(thm)],[87]),4656]),
    [iquote('back_demod,87,demod,4656')] ).

cnf(4685,plain,
    $false,
    inference(binary,[status(thm)],[4684,4657]),
    [iquote('binary,4684.1,4657.1')] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.04/0.12  % Problem  : NUM841+2 : TPTP v8.1.0. Released v4.1.0.
% 0.04/0.13  % Command  : otter-tptp-script %s
% 0.13/0.34  % Computer : n013.cluster.edu
% 0.13/0.34  % Model    : x86_64 x86_64
% 0.13/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.34  % Memory   : 8042.1875MB
% 0.13/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.34  % CPULimit : 300
% 0.13/0.34  % WCLimit  : 300
% 0.13/0.34  % DateTime : Wed Jul 27 09:50:00 EDT 2022
% 0.13/0.34  % CPUTime  : 
% 2.02/2.19  ----- Otter 3.3f, August 2004 -----
% 2.02/2.19  The process was started by sandbox on n013.cluster.edu,
% 2.02/2.19  Wed Jul 27 09:50:00 2022
% 2.02/2.19  The command was "./otter".  The process ID is 30707.
% 2.02/2.19  
% 2.02/2.19  set(prolog_style_variables).
% 2.02/2.19  set(auto).
% 2.02/2.19     dependent: set(auto1).
% 2.02/2.19     dependent: set(process_input).
% 2.02/2.19     dependent: clear(print_kept).
% 2.02/2.19     dependent: clear(print_new_demod).
% 2.02/2.19     dependent: clear(print_back_demod).
% 2.02/2.19     dependent: clear(print_back_sub).
% 2.02/2.19     dependent: set(control_memory).
% 2.02/2.19     dependent: assign(max_mem, 12000).
% 2.02/2.19     dependent: assign(pick_given_ratio, 4).
% 2.02/2.19     dependent: assign(stats_level, 1).
% 2.02/2.19     dependent: assign(max_seconds, 10800).
% 2.02/2.19  clear(print_given).
% 2.02/2.19  
% 2.02/2.19  formula_list(usable).
% 2.02/2.19  all A (A=A).
% 2.02/2.19  -greater(vplus(vd344,vd347),vplus(vd345,vd348)).
% 2.02/2.19  vplus(vd348,vd345)=vplus(vd345,vd348).
% 2.02/2.19  greater(vplus(vd347,vd345),vplus(vd348,vd345)).
% 2.02/2.19  vplus(vd345,vd347)=vplus(vd347,vd345).
% 2.02/2.19  greater(vplus(vd344,vd347),vplus(vd345,vd347)).
% 2.02/2.19  greater(vd347,vd348).
% 2.02/2.19  greater(vd344,vd345).
% 2.02/2.19  all Vd328 Vd329 Vd330 (less(vplus(Vd328,Vd330),vplus(Vd329,Vd330))->less(Vd328,Vd329)).
% 2.02/2.19  all Vd328 Vd329 Vd330 (vplus(Vd328,Vd330)=vplus(Vd329,Vd330)->Vd328=Vd329).
% 2.02/2.19  all Vd328 Vd329 Vd330 (greater(vplus(Vd328,Vd330),vplus(Vd329,Vd330))->greater(Vd328,Vd329)).
% 2.02/2.19  all Vd301 Vd302 Vd303 (less(Vd301,Vd302)->less(vplus(Vd301,Vd303),vplus(Vd302,Vd303))).
% 2.02/2.19  all Vd301 Vd302 Vd303 (Vd301=Vd302->vplus(Vd301,Vd303)=vplus(Vd302,Vd303)).
% 2.02/2.19  all Vd301 Vd302 Vd303 (greater(Vd301,Vd302)->greater(vplus(Vd301,Vd303),vplus(Vd302,Vd303))).
% 2.02/2.19  all Vd295 Vd296 greater(vplus(Vd295,Vd296),Vd295).
% 2.02/2.19  all Vd226 Vd227 (less(Vd226,Vd227)->greater(Vd227,Vd226)).
% 2.02/2.19  all Vd208 Vd209 (greater(Vd208,Vd209)->less(Vd209,Vd208)).
% 2.02/2.19  all Vd203 Vd204 (Vd203=Vd204|greater(Vd203,Vd204)|less(Vd203,Vd204)).
% 2.02/2.19  all Vd203 Vd204 (-greater(Vd203,Vd204)| -less(Vd203,Vd204)).
% 2.02/2.19  all Vd193 Vd194 (greater(Vd194,Vd193)<-> (exists Vd196 (Vd194=vplus(Vd193,Vd196)))).
% 2.02/2.19  all Vd120 Vd121 (Vd120!=Vd121| -(exists Vd123 (Vd120=vplus(Vd121,Vd123)))).
% 2.02/2.19  all Vd78 Vd79 (vplus(Vd79,Vd78)=vplus(Vd78,Vd79)).
% 2.02/2.19  all Vd68 Vd69 (vplus(vsucc(Vd68),Vd69)=vsucc(vplus(Vd68,Vd69))).
% 2.02/2.19  all Vd59 (vplus(v1,Vd59)=vsucc(Vd59)).
% 2.02/2.19  all Vd46 Vd47 Vd48 (vplus(vplus(Vd46,Vd47),Vd48)=vplus(Vd46,vplus(Vd47,Vd48))).
% 2.02/2.19  all Vd42 Vd43 (vplus(Vd42,vsucc(Vd43))=vsucc(vplus(Vd42,Vd43))&vplus(Vd42,v1)=vsucc(Vd42)).
% 2.02/2.19  all Vd24 (Vd24!=v1->Vd24=vsucc(vskolem2(Vd24))).
% 2.02/2.19  end_of_list.
% 2.02/2.19  
% 2.02/2.19  -------> usable clausifies to:
% 2.02/2.19  
% 2.02/2.19  list(usable).
% 2.02/2.19  0 [] A=A.
% 2.02/2.19  0 [] -greater(vplus(vd344,vd347),vplus(vd345,vd348)).
% 2.02/2.19  0 [] vplus(vd348,vd345)=vplus(vd345,vd348).
% 2.02/2.19  0 [] greater(vplus(vd347,vd345),vplus(vd348,vd345)).
% 2.02/2.19  0 [] vplus(vd345,vd347)=vplus(vd347,vd345).
% 2.02/2.19  0 [] greater(vplus(vd344,vd347),vplus(vd345,vd347)).
% 2.02/2.19  0 [] greater(vd347,vd348).
% 2.02/2.19  0 [] greater(vd344,vd345).
% 2.02/2.19  0 [] -less(vplus(Vd328,Vd330),vplus(Vd329,Vd330))|less(Vd328,Vd329).
% 2.02/2.19  0 [] vplus(Vd328,Vd330)!=vplus(Vd329,Vd330)|Vd328=Vd329.
% 2.02/2.19  0 [] -greater(vplus(Vd328,Vd330),vplus(Vd329,Vd330))|greater(Vd328,Vd329).
% 2.02/2.19  0 [] -less(Vd301,Vd302)|less(vplus(Vd301,Vd303),vplus(Vd302,Vd303)).
% 2.02/2.19  0 [] Vd301!=Vd302|vplus(Vd301,Vd303)=vplus(Vd302,Vd303).
% 2.02/2.19  0 [] -greater(Vd301,Vd302)|greater(vplus(Vd301,Vd303),vplus(Vd302,Vd303)).
% 2.02/2.19  0 [] greater(vplus(Vd295,Vd296),Vd295).
% 2.02/2.19  0 [] -less(Vd226,Vd227)|greater(Vd227,Vd226).
% 2.02/2.19  0 [] -greater(Vd208,Vd209)|less(Vd209,Vd208).
% 2.02/2.19  0 [] Vd203=Vd204|greater(Vd203,Vd204)|less(Vd203,Vd204).
% 2.02/2.19  0 [] -greater(Vd203,Vd204)| -less(Vd203,Vd204).
% 2.02/2.19  0 [] -greater(Vd194,Vd193)|Vd194=vplus(Vd193,$f1(Vd193,Vd194)).
% 2.02/2.19  0 [] greater(Vd194,Vd193)|Vd194!=vplus(Vd193,Vd196).
% 2.02/2.19  0 [] Vd120!=Vd121|Vd120!=vplus(Vd121,Vd123).
% 2.02/2.19  0 [] vplus(Vd79,Vd78)=vplus(Vd78,Vd79).
% 2.02/2.19  0 [] vplus(vsucc(Vd68),Vd69)=vsucc(vplus(Vd68,Vd69)).
% 2.02/2.19  0 [] vplus(v1,Vd59)=vsucc(Vd59).
% 2.02/2.19  0 [] vplus(vplus(Vd46,Vd47),Vd48)=vplus(Vd46,vplus(Vd47,Vd48)).
% 2.02/2.19  0 [] vplus(Vd42,vsucc(Vd43))=vsucc(vplus(Vd42,Vd43)).
% 2.02/2.19  0 [] vplus(Vd42,v1)=vsucc(Vd42).
% 2.02/2.19  0 [] Vd24=v1|Vd24=vsucc(vskolem2(Vd24)).
% 2.02/2.19  end_of_list.
% 2.02/2.19  
% 2.02/2.19  SCAN INPUT: prop=0, horn=0, equality=1, symmetry=0, max_lits=3.
% 2.02/2.19  
% 2.02/2.19  This ia a non-Horn set with equality.  The strategy will be
% 2.02/2.19  Knuth-Bendix, ordered hyper_res, factoring, and unit
% 2.02/2.19  deletion, with positive clauses in sos and nonpositive
% 2.02/2.19  clauses in usable.
% 2.02/2.19  
% 2.02/2.19     dependent: set(knuth_bendix).
% 2.02/2.19     dependent: set(anl_eq).
% 10.10/10.31     dependent: set(para_from).
% 10.10/10.31     dependent: set(para_into).
% 10.10/10.31     dependent: clear(para_from_right).
% 10.10/10.31     dependent: clear(para_into_right).
% 10.10/10.31     dependent: set(para_from_vars).
% 10.10/10.31     dependent: set(eq_units_both_ways).
% 10.10/10.31     dependent: set(dynamic_demod_all).
% 10.10/10.31     dependent: set(dynamic_demod).
% 10.10/10.31     dependent: set(order_eq).
% 10.10/10.31     dependent: set(back_demod).
% 10.10/10.31     dependent: set(lrpo).
% 10.10/10.31     dependent: set(hyper_res).
% 10.10/10.31     dependent: set(unit_deletion).
% 10.10/10.31     dependent: set(factor).
% 10.10/10.31  
% 10.10/10.31  ------------> process usable:
% 10.10/10.31  ** KEPT (pick-wt=7): 1 [] -greater(vplus(vd344,vd347),vplus(vd345,vd348)).
% 10.10/10.31  ** KEPT (pick-wt=10): 2 [] -less(vplus(A,B),vplus(C,B))|less(A,C).
% 10.10/10.31  ** KEPT (pick-wt=10): 3 [] vplus(A,B)!=vplus(C,B)|A=C.
% 10.10/10.31  ** KEPT (pick-wt=10): 4 [] -greater(vplus(A,B),vplus(C,B))|greater(A,C).
% 10.10/10.31  ** KEPT (pick-wt=10): 5 [] -less(A,B)|less(vplus(A,C),vplus(B,C)).
% 10.10/10.31  ** KEPT (pick-wt=10): 6 [] A!=B|vplus(A,C)=vplus(B,C).
% 10.10/10.31  ** KEPT (pick-wt=10): 7 [] -greater(A,B)|greater(vplus(A,C),vplus(B,C)).
% 10.10/10.31  ** KEPT (pick-wt=6): 8 [] -less(A,B)|greater(B,A).
% 10.10/10.31  ** KEPT (pick-wt=6): 9 [] -greater(A,B)|less(B,A).
% 10.10/10.31  ** KEPT (pick-wt=6): 10 [] -greater(A,B)| -less(A,B).
% 10.10/10.31  ** KEPT (pick-wt=10): 12 [copy,11,flip.2] -greater(A,B)|vplus(B,$f1(B,A))=A.
% 10.10/10.31  ** KEPT (pick-wt=8): 13 [] greater(A,B)|A!=vplus(B,C).
% 10.10/10.31  ** KEPT (pick-wt=8): 14 [] A!=B|A!=vplus(B,C).
% 10.10/10.31  
% 10.10/10.31  ------------> process sos:
% 10.10/10.31  ** KEPT (pick-wt=3): 15 [] A=A.
% 10.10/10.31  ** KEPT (pick-wt=7): 16 [] vplus(vd348,vd345)=vplus(vd345,vd348).
% 10.10/10.31  ---> New Demodulator: 17 [new_demod,16] vplus(vd348,vd345)=vplus(vd345,vd348).
% 10.10/10.31  ** KEPT (pick-wt=7): 19 [copy,18,demod,17] greater(vplus(vd347,vd345),vplus(vd345,vd348)).
% 10.10/10.31  ** KEPT (pick-wt=7): 21 [copy,20,flip.1] vplus(vd347,vd345)=vplus(vd345,vd347).
% 10.10/10.31  ---> New Demodulator: 22 [new_demod,21] vplus(vd347,vd345)=vplus(vd345,vd347).
% 10.10/10.31  ** KEPT (pick-wt=7): 23 [] greater(vplus(vd344,vd347),vplus(vd345,vd347)).
% 10.10/10.31  ** KEPT (pick-wt=3): 24 [] greater(vd347,vd348).
% 10.10/10.31  ** KEPT (pick-wt=3): 25 [] greater(vd344,vd345).
% 10.10/10.31  ** KEPT (pick-wt=5): 26 [] greater(vplus(A,B),A).
% 10.10/10.31  ** KEPT (pick-wt=9): 27 [] A=B|greater(A,B)|less(A,B).
% 10.10/10.31  ** KEPT (pick-wt=7): 28 [] vplus(A,B)=vplus(B,A).
% 10.10/10.31  ** KEPT (pick-wt=9): 30 [copy,29,flip.1] vsucc(vplus(A,B))=vplus(vsucc(A),B).
% 10.10/10.31  ---> New Demodulator: 31 [new_demod,30] vsucc(vplus(A,B))=vplus(vsucc(A),B).
% 10.10/10.31  ** KEPT (pick-wt=6): 33 [copy,32,flip.1] vsucc(A)=vplus(v1,A).
% 10.10/10.31  ---> New Demodulator: 34 [new_demod,33] vsucc(A)=vplus(v1,A).
% 10.10/10.31  ** KEPT (pick-wt=11): 35 [] vplus(vplus(A,B),C)=vplus(A,vplus(B,C)).
% 10.10/10.31  ---> New Demodulator: 36 [new_demod,35] vplus(vplus(A,B),C)=vplus(A,vplus(B,C)).
% 10.10/10.31  ** KEPT (pick-wt=11): 38 [copy,37,demod,34,34] vplus(A,vplus(v1,B))=vplus(v1,vplus(A,B)).
% 10.10/10.31    Following clause subsumed by 28 during input processing: 0 [demod,34] vplus(A,v1)=vplus(v1,A).
% 10.10/10.31  ** KEPT (pick-wt=9): 40 [copy,39,demod,34,flip.2] A=v1|vplus(v1,vskolem2(A))=A.
% 10.10/10.31    Following clause subsumed by 15 during input processing: 0 [copy,15,flip.1] A=A.
% 10.10/10.31  >>>> Starting back demodulation with 17.
% 10.10/10.31  >>>> Starting back demodulation with 22.
% 10.10/10.31      >> back demodulating 19 with 22.
% 10.10/10.31    Following clause subsumed by 28 during input processing: 0 [copy,28,flip.1] vplus(A,B)=vplus(B,A).
% 10.10/10.31  28 back subsumes 21.
% 10.10/10.31  28 back subsumes 16.
% 10.10/10.31  >>>> Starting back demodulation with 31.
% 10.10/10.31  >>>> Starting back demodulation with 34.
% 10.10/10.31      >> back demodulating 30 with 34.
% 10.10/10.31  >>>> Starting back demodulation with 36.
% 10.10/10.31  ** KEPT (pick-wt=11): 42 [copy,38,flip.1] vplus(v1,vplus(A,B))=vplus(A,vplus(v1,B)).
% 10.10/10.31    Following clause subsumed by 38 during input processing: 0 [copy,42,flip.1] vplus(A,vplus(v1,B))=vplus(v1,vplus(A,B)).
% 10.10/10.31  
% 10.10/10.31  ======= end of input processing =======
% 10.10/10.31  
% 10.10/10.31  =========== start of search ===========
% 10.10/10.31  
% 10.10/10.31  
% 10.10/10.31  Resetting weight limit to 9.
% 10.10/10.31  
% 10.10/10.31  
% 10.10/10.31  Resetting weight limit to 9.
% 10.10/10.31  
% 10.10/10.31  sos_size=2660
% 10.10/10.31  
% 10.10/10.31  
% 10.10/10.31  Resetting weight limit to 8.
% 10.10/10.31  
% 10.10/10.31  
% 10.10/10.31  Resetting weight limit to 8.
% 10.10/10.31  
% 10.10/10.31  sos_size=2687
% 10.10/10.31  
% 10.10/10.31  -------- PROOF -------- 
% 10.10/10.31  
% 10.10/10.31  ----> UNIT CONFLICT at   8.08 sec ----> 4685 [binary,4684.1,4657.1] $F.
% 10.10/10.31  
% 10.10/10.31  Length of proof is 17.  Level of proof is 9.
% 10.10/10.31  
% 10.10/10.31  ---------------- PROOF ----------------
% 10.10/10.31  % SZS status Theorem
% 10.10/10.31  % SZS output start Refutation
% See solution above
% 10.10/10.31  ------------ end of proof -------------
% 10.10/10.31  
% 10.10/10.31  
% 10.10/10.31  Search stopped by max_proofs option.
% 10.10/10.31  
% 10.10/10.31  
% 10.10/10.31  Search stopped by max_proofs option.
% 10.10/10.31  
% 10.10/10.31  ============ end of search ============
% 10.10/10.31  
% 10.10/10.31  -------------- statistics -------------
% 10.10/10.31  clauses given               1392
% 10.10/10.31  clauses generated         413054
% 10.10/10.31  clauses kept                4572
% 10.10/10.31  clauses forward subsumed   18160
% 10.10/10.31  clauses back subsumed       1071
% 10.10/10.31  Kbytes malloced             5859
% 10.10/10.31  
% 10.10/10.31  ----------- times (seconds) -----------
% 10.10/10.31  user CPU time          8.08          (0 hr, 0 min, 8 sec)
% 10.10/10.31  system CPU time        0.01          (0 hr, 0 min, 0 sec)
% 10.10/10.31  wall-clock time       10             (0 hr, 0 min, 10 sec)
% 10.10/10.31  
% 10.10/10.31  That finishes the proof of the theorem.
% 10.10/10.31  
% 10.10/10.31  Process 30707 finished Wed Jul 27 09:50:10 2022
% 10.10/10.31  Otter interrupted
% 10.10/10.31  PROOF FOUND
%------------------------------------------------------------------------------