TSTP Solution File: NLP257-1 by Otter---3.3

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Otter---3.3
% Problem  : NLP257-1 : TPTP v8.1.0. Released v2.4.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : otter-tptp-script %s

% Computer : n007.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 13:07:21 EDT 2022

% Result   : Unsatisfiable 3.72s 3.97s
% Output   : Refutation 3.72s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    5
%            Number of leaves      :   25
% Syntax   : Number of clauses     :   33 (  26 unt;   0 nHn;  27 RR)
%            Number of literals    :  108 (   0 equ;  76 neg)
%            Maximal clause size   :   37 (   3 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :   17 (  16 usr;   1 prp; 0-4 aty)
%            Number of functors    :   10 (  10 usr;   8 con; 0-1 aty)
%            Number of variables   :   40 (   9 sgn)

% Comments : 
%------------------------------------------------------------------------------
cnf(52,axiom,
    ( ~ accessible_world(A,B)
    | ~ man(A,C)
    | man(B,C) ),
    file('NLP257-1.p',unknown),
    [] ).

cnf(72,axiom,
    ( ~ man(skc12,A)
    | smoke(skc12,skf2(B)) ),
    file('NLP257-1.p',unknown),
    [] ).

cnf(73,axiom,
    ( ~ man(skc12,A)
    | present(skc12,skf2(B)) ),
    file('NLP257-1.p',unknown),
    [] ).

cnf(74,axiom,
    ( ~ man(skc12,A)
    | event(skc12,skf2(B)) ),
    file('NLP257-1.p',unknown),
    [] ).

cnf(75,axiom,
    ( ~ man(skc12,A)
    | agent(skc12,skf2(A),A) ),
    file('NLP257-1.p',unknown),
    [] ).

cnf(76,axiom,
    ( ~ state(A,B)
    | ~ be(A,B,C,C)
    | ~ man(A,C)
    | ~ of(A,D,C)
    | ~ jules_forename(A,D)
    | ~ forename(A,D)
    | ~ jules_forename(A,E)
    | ~ forename(A,E)
    | ~ smoke(F,G)
    | ~ present(F,G)
    | ~ agent(F,G,H)
    | ~ event(F,G)
    | ~ man(A,H)
    | ~ of(A,E,H)
    | ~ proposition(A,F)
    | ~ accessible_world(A,F)
    | ~ accessible_world(A,I)
    | ~ proposition(A,I)
    | ~ theme(A,J,I)
    | ~ event(A,J)
    | ~ present(A,J)
    | ~ think_believe_consider(A,J)
    | ~ man(A,K)
    | ~ agent(A,J,K)
    | ~ agent(A,L,K)
    | ~ forename(A,M)
    | ~ vincent_forename(A,M)
    | ~ of(A,M,K)
    | ~ think_believe_consider(A,L)
    | ~ present(A,L)
    | ~ event(A,L)
    | ~ theme(A,L,F)
    | ~ actual_world(A)
    | man(I,skf4(I)) ),
    file('NLP257-1.p',unknown),
    [] ).

cnf(77,axiom,
    ( ~ state(A,B)
    | ~ be(A,B,C,C)
    | ~ man(A,C)
    | ~ of(A,D,C)
    | ~ jules_forename(A,D)
    | ~ forename(A,D)
    | ~ jules_forename(A,E)
    | ~ forename(A,E)
    | ~ smoke(F,G)
    | ~ present(F,G)
    | ~ agent(F,G,H)
    | ~ event(F,G)
    | ~ man(A,H)
    | ~ of(A,E,H)
    | ~ proposition(A,F)
    | ~ accessible_world(A,F)
    | ~ smoke(I,J)
    | ~ present(I,J)
    | ~ agent(I,J,skf4(I))
    | ~ event(I,J)
    | ~ accessible_world(A,I)
    | ~ proposition(A,I)
    | ~ theme(A,K,I)
    | ~ event(A,K)
    | ~ present(A,K)
    | ~ think_believe_consider(A,K)
    | ~ man(A,L)
    | ~ agent(A,K,L)
    | ~ agent(A,M,L)
    | ~ forename(A,N)
    | ~ vincent_forename(A,N)
    | ~ of(A,N,L)
    | ~ think_believe_consider(A,M)
    | ~ present(A,M)
    | ~ event(A,M)
    | ~ theme(A,M,F)
    | ~ actual_world(A) ),
    file('NLP257-1.p',unknown),
    [] ).

cnf(79,axiom,
    actual_world(skc8),
    file('NLP257-1.p',unknown),
    [] ).

cnf(80,axiom,
    man(skc8,skc15),
    file('NLP257-1.p',unknown),
    [] ).

cnf(81,axiom,
    forename(skc8,skc14),
    file('NLP257-1.p',unknown),
    [] ).

cnf(82,axiom,
    vincent_forename(skc8,skc14),
    file('NLP257-1.p',unknown),
    [] ).

cnf(83,axiom,
    event(skc8,skc13),
    file('NLP257-1.p',unknown),
    [] ).

cnf(84,axiom,
    present(skc8,skc13),
    file('NLP257-1.p',unknown),
    [] ).

cnf(85,axiom,
    think_believe_consider(skc8,skc13),
    file('NLP257-1.p',unknown),
    [] ).

cnf(86,axiom,
    jules_forename(skc8,skc11),
    file('NLP257-1.p',unknown),
    [] ).

cnf(87,axiom,
    forename(skc8,skc11),
    file('NLP257-1.p',unknown),
    [] ).

cnf(88,axiom,
    man(skc8,skc10),
    file('NLP257-1.p',unknown),
    [] ).

cnf(89,axiom,
    state(skc8,skc9),
    file('NLP257-1.p',unknown),
    [] ).

cnf(90,axiom,
    accessible_world(skc8,skc12),
    file('NLP257-1.p',unknown),
    [] ).

cnf(91,axiom,
    proposition(skc8,skc12),
    file('NLP257-1.p',unknown),
    [] ).

cnf(92,axiom,
    of(skc8,skc14,skc15),
    file('NLP257-1.p',unknown),
    [] ).

cnf(93,axiom,
    agent(skc8,skc13,skc15),
    file('NLP257-1.p',unknown),
    [] ).

cnf(94,axiom,
    theme(skc8,skc13,skc12),
    file('NLP257-1.p',unknown),
    [] ).

cnf(95,axiom,
    of(skc8,skc11,skc10),
    file('NLP257-1.p',unknown),
    [] ).

cnf(96,axiom,
    be(skc8,skc9,skc10,skc10),
    file('NLP257-1.p',unknown),
    [] ).

cnf(173,plain,
    man(skc12,skc10),
    inference(hyper,[status(thm)],[90,52,88]),
    [iquote('hyper,90,52,88')] ).

cnf(336,plain,
    agent(skc12,skf2(skc10),skc10),
    inference(hyper,[status(thm)],[173,75]),
    [iquote('hyper,173,75')] ).

cnf(337,plain,
    event(skc12,skf2(A)),
    inference(hyper,[status(thm)],[173,74]),
    [iquote('hyper,173,74')] ).

cnf(338,plain,
    present(skc12,skf2(A)),
    inference(hyper,[status(thm)],[173,73]),
    [iquote('hyper,173,73')] ).

cnf(339,plain,
    smoke(skc12,skf2(A)),
    inference(hyper,[status(thm)],[173,72]),
    [iquote('hyper,173,72')] ).

cnf(1444,plain,
    man(skc12,skf4(skc12)),
    inference(hyper,[status(thm)],[336,76,89,96,88,95,86,87,86,87,339,338,337,88,95,91,90,90,91,94,83,84,85,80,93,93,81,82,92,85,84,83,94,79]),
    [iquote('hyper,336,76,89,96,88,95,86,87,86,87,339,338,337,88,95,91,90,90,91,94,83,84,85,80,93,93,81,82,92,85,84,83,94,79')] ).

cnf(1463,plain,
    agent(skc12,skf2(skf4(skc12)),skf4(skc12)),
    inference(hyper,[status(thm)],[1444,75]),
    [iquote('hyper,1444,75')] ).

cnf(1638,plain,
    $false,
    inference(hyper,[status(thm)],[1463,77,89,96,88,95,86,87,86,87,339,338,336,337,88,95,91,90,339,338,337,90,91,94,83,84,85,80,93,93,81,82,92,85,84,83,94,79]),
    [iquote('hyper,1463,77,89,96,88,95,86,87,86,87,339,338,336,337,88,95,91,90,339,338,337,90,91,94,83,84,85,80,93,93,81,82,92,85,84,83,94,79')] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.06/0.12  % Problem  : NLP257-1 : TPTP v8.1.0. Released v2.4.0.
% 0.06/0.12  % Command  : otter-tptp-script %s
% 0.12/0.33  % Computer : n007.cluster.edu
% 0.12/0.33  % Model    : x86_64 x86_64
% 0.12/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.33  % Memory   : 8042.1875MB
% 0.12/0.33  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.33  % CPULimit : 300
% 0.12/0.33  % WCLimit  : 300
% 0.12/0.33  % DateTime : Wed Jul 27 08:25:46 EDT 2022
% 0.12/0.33  % CPUTime  : 
% 3.23/3.43  ----- Otter 3.3f, August 2004 -----
% 3.23/3.43  The process was started by sandbox on n007.cluster.edu,
% 3.23/3.43  Wed Jul 27 08:25:46 2022
% 3.23/3.43  The command was "./otter".  The process ID is 13550.
% 3.23/3.43  
% 3.23/3.43  set(prolog_style_variables).
% 3.23/3.43  set(auto).
% 3.23/3.43     dependent: set(auto1).
% 3.23/3.43     dependent: set(process_input).
% 3.23/3.43     dependent: clear(print_kept).
% 3.23/3.43     dependent: clear(print_new_demod).
% 3.23/3.43     dependent: clear(print_back_demod).
% 3.23/3.43     dependent: clear(print_back_sub).
% 3.23/3.43     dependent: set(control_memory).
% 3.23/3.43     dependent: assign(max_mem, 12000).
% 3.23/3.43     dependent: assign(pick_given_ratio, 4).
% 3.23/3.43     dependent: assign(stats_level, 1).
% 3.23/3.43     dependent: assign(max_seconds, 10800).
% 3.23/3.43  clear(print_given).
% 3.23/3.43  
% 3.23/3.43  list(usable).
% 3.23/3.43  0 [] A=A.
% 3.23/3.43  0 [] -smoke(U,V)|event(U,V).
% 3.23/3.43  0 [] -event(U,V)|eventuality(U,V).
% 3.23/3.43  0 [] -eventuality(U,V)|thing(U,V).
% 3.23/3.43  0 [] -thing(U,V)|singleton(U,V).
% 3.23/3.43  0 [] -eventuality(U,V)|specific(U,V).
% 3.23/3.43  0 [] -eventuality(U,V)|nonexistent(U,V).
% 3.23/3.43  0 [] -eventuality(U,V)|unisex(U,V).
% 3.23/3.43  0 [] -proposition(U,V)|relation(U,V).
% 3.23/3.43  0 [] -relation(U,V)|abstraction(U,V).
% 3.23/3.43  0 [] -abstraction(U,V)|thing(U,V).
% 3.23/3.43  0 [] -abstraction(U,V)|nonhuman(U,V).
% 3.23/3.43  0 [] -abstraction(U,V)|general(U,V).
% 3.23/3.43  0 [] -abstraction(U,V)|unisex(U,V).
% 3.23/3.43  0 [] -state(U,V)|eventuality(U,V).
% 3.23/3.43  0 [] -state(U,V)|event(U,V).
% 3.23/3.43  0 [] -man(U,V)|human_person(U,V).
% 3.23/3.43  0 [] -human_person(U,V)|organism(U,V).
% 3.23/3.43  0 [] -organism(U,V)|entity(U,V).
% 3.23/3.43  0 [] -entity(U,V)|thing(U,V).
% 3.23/3.43  0 [] -entity(U,V)|specific(U,V).
% 3.23/3.43  0 [] -entity(U,V)|existent(U,V).
% 3.23/3.43  0 [] -organism(U,V)|impartial(U,V).
% 3.23/3.43  0 [] -organism(U,V)|living(U,V).
% 3.23/3.43  0 [] -human_person(U,V)|human(U,V).
% 3.23/3.43  0 [] -human_person(U,V)|animate(U,V).
% 3.23/3.43  0 [] -man(U,V)|male(U,V).
% 3.23/3.43  0 [] -forename(U,V)|relname(U,V).
% 3.23/3.43  0 [] -relname(U,V)|relation(U,V).
% 3.23/3.43  0 [] -vincent_forename(U,V)|forename(U,V).
% 3.23/3.43  0 [] -jules_forename(U,V)|forename(U,V).
% 3.23/3.43  0 [] -male(U,V)| -unisex(U,V).
% 3.23/3.43  0 [] -general(U,V)| -specific(U,V).
% 3.23/3.43  0 [] -human(U,V)| -nonhuman(U,V).
% 3.23/3.43  0 [] -nonexistent(U,V)| -existent(U,V).
% 3.23/3.43  0 [] -be(U,V,W,X)|W=X.
% 3.23/3.43  0 [] -accessible_world(U,V)| -smoke(U,W)|smoke(V,W).
% 3.23/3.43  0 [] -accessible_world(U,V)| -event(U,W)|event(V,W).
% 3.23/3.43  0 [] -accessible_world(U,V)| -eventuality(U,W)|eventuality(V,W).
% 3.23/3.43  0 [] -accessible_world(U,V)| -thing(U,W)|thing(V,W).
% 3.23/3.43  0 [] -accessible_world(U,V)| -singleton(U,W)|singleton(V,W).
% 3.23/3.43  0 [] -accessible_world(U,V)| -specific(U,W)|specific(V,W).
% 3.23/3.43  0 [] -accessible_world(U,V)| -nonexistent(U,W)|nonexistent(V,W).
% 3.23/3.43  0 [] -accessible_world(U,V)| -unisex(U,W)|unisex(V,W).
% 3.23/3.43  0 [] -accessible_world(U,V)| -present(U,W)|present(V,W).
% 3.23/3.43  0 [] -accessible_world(U,V)| -think_believe_consider(U,W)|think_believe_consider(V,W).
% 3.23/3.43  0 [] -accessible_world(U,V)| -proposition(U,W)|proposition(V,W).
% 3.23/3.43  0 [] -accessible_world(U,V)| -relation(U,W)|relation(V,W).
% 3.23/3.43  0 [] -accessible_world(U,V)| -abstraction(U,W)|abstraction(V,W).
% 3.23/3.43  0 [] -accessible_world(U,V)| -nonhuman(U,W)|nonhuman(V,W).
% 3.23/3.43  0 [] -accessible_world(U,V)| -general(U,W)|general(V,W).
% 3.23/3.43  0 [] -accessible_world(U,V)| -state(U,W)|state(V,W).
% 3.23/3.43  0 [] -accessible_world(U,V)| -man(U,W)|man(V,W).
% 3.23/3.43  0 [] -accessible_world(U,V)| -human_person(U,W)|human_person(V,W).
% 3.23/3.43  0 [] -accessible_world(U,V)| -organism(U,W)|organism(V,W).
% 3.23/3.43  0 [] -accessible_world(U,V)| -entity(U,W)|entity(V,W).
% 3.23/3.43  0 [] -accessible_world(U,V)| -existent(U,W)|existent(V,W).
% 3.23/3.43  0 [] -accessible_world(U,V)| -impartial(U,W)|impartial(V,W).
% 3.23/3.43  0 [] -accessible_world(U,V)| -living(U,W)|living(V,W).
% 3.23/3.43  0 [] -accessible_world(U,V)| -human(U,W)|human(V,W).
% 3.23/3.43  0 [] -accessible_world(U,V)| -animate(U,W)|animate(V,W).
% 3.23/3.43  0 [] -accessible_world(U,V)| -male(U,W)|male(V,W).
% 3.23/3.43  0 [] -accessible_world(U,V)| -forename(U,W)|forename(V,W).
% 3.23/3.43  0 [] -accessible_world(U,V)| -relname(U,W)|relname(V,W).
% 3.23/3.43  0 [] -accessible_world(U,V)| -vincent_forename(U,W)|vincent_forename(V,W).
% 3.23/3.43  0 [] -accessible_world(U,V)| -jules_forename(U,W)|jules_forename(V,W).
% 3.23/3.43  0 [] -accessible_world(U,V)| -agent(U,W,X)|agent(V,W,X).
% 3.23/3.43  0 [] -accessible_world(U,V)| -theme(U,W,X)|theme(V,W,X).
% 3.23/3.43  0 [] -accessible_world(U,V)| -of(U,W,X)|of(V,W,X).
% 3.23/3.43  0 [] -accessible_world(U,V)| -be(U,W,X,Y)|be(V,W,X,Y).
% 3.23/3.43  0 [] -forename(U,V)| -of(U,W,X)| -forename(U,W)| -of(U,V,X)| -entity(U,X)|W=V.
% 3.23/3.43  0 [] -proposition(U,V)| -proposition(U,W)| -theme(U,X,V)| -think_believe_consider(U,X)| -think_believe_consider(U,Y)| -theme(U,Y,W)| -agent(U,Y,Z)| -agent(U,X,Z)|V=W.
% 3.23/3.44  0 [] actual_world(skc8).
% 3.23/3.44  0 [] man(skc8,skc15).
% 3.23/3.44  0 [] forename(skc8,skc14).
% 3.23/3.44  0 [] vincent_forename(skc8,skc14).
% 3.23/3.44  0 [] event(skc8,skc13).
% 3.23/3.44  0 [] present(skc8,skc13).
% 3.23/3.44  0 [] think_believe_consider(skc8,skc13).
% 3.23/3.44  0 [] jules_forename(skc8,skc11).
% 3.23/3.44  0 [] forename(skc8,skc11).
% 3.23/3.44  0 [] man(skc8,skc10).
% 3.23/3.44  0 [] state(skc8,skc9).
% 3.23/3.44  0 [] accessible_world(skc8,skc12).
% 3.23/3.44  0 [] proposition(skc8,skc12).
% 3.23/3.44  0 [] of(skc8,skc14,skc15).
% 3.23/3.44  0 [] agent(skc8,skc13,skc15).
% 3.23/3.44  0 [] theme(skc8,skc13,skc12).
% 3.23/3.44  0 [] of(skc8,skc11,skc10).
% 3.23/3.44  0 [] be(skc8,skc9,skc10,skc10).
% 3.23/3.44  0 [] -man(skc12,U)|smoke(skc12,skf2(V)).
% 3.23/3.44  0 [] -man(skc12,U)|present(skc12,skf2(V)).
% 3.23/3.44  0 [] -man(skc12,U)|event(skc12,skf2(V)).
% 3.23/3.44  0 [] -man(skc12,U)|agent(skc12,skf2(U),U).
% 3.23/3.44  0 [] -state(U,V)| -be(U,V,W,W)| -man(U,W)| -of(U,X,W)| -jules_forename(U,X)| -forename(U,X)| -jules_forename(U,Y)| -forename(U,Y)| -smoke(Z,X1)| -present(Z,X1)| -agent(Z,X1,X2)| -event(Z,X1)| -man(U,X2)| -of(U,Y,X2)| -proposition(U,Z)| -accessible_world(U,Z)| -accessible_world(U,X3)| -proposition(U,X3)| -theme(U,X4,X3)| -event(U,X4)| -present(U,X4)| -think_believe_consider(U,X4)| -man(U,X5)| -agent(U,X4,X5)| -agent(U,X6,X5)| -forename(U,X7)| -vincent_forename(U,X7)| -of(U,X7,X5)| -think_believe_consider(U,X6)| -present(U,X6)| -event(U,X6)| -theme(U,X6,Z)| -actual_world(U)|man(X3,skf4(X3)).
% 3.23/3.44  0 [] -state(U,V)| -be(U,V,W,W)| -man(U,W)| -of(U,X,W)| -jules_forename(U,X)| -forename(U,X)| -jules_forename(U,Y)| -forename(U,Y)| -smoke(Z,X1)| -present(Z,X1)| -agent(Z,X1,X2)| -event(Z,X1)| -man(U,X2)| -of(U,Y,X2)| -proposition(U,Z)| -accessible_world(U,Z)| -smoke(X3,X4)| -present(X3,X4)| -agent(X3,X4,skf4(X3))| -event(X3,X4)| -accessible_world(U,X3)| -proposition(U,X3)| -theme(U,X5,X3)| -event(U,X5)| -present(U,X5)| -think_believe_consider(U,X5)| -man(U,X6)| -agent(U,X5,X6)| -agent(U,X7,X6)| -forename(U,X8)| -vincent_forename(U,X8)| -of(U,X8,X6)| -think_believe_consider(U,X7)| -present(U,X7)| -event(U,X7)| -theme(U,X7,Z)| -actual_world(U).
% 3.23/3.44  end_of_list.
% 3.23/3.44  
% 3.23/3.44  SCAN INPUT: prop=0, horn=1, equality=1, symmetry=0, max_lits=37.
% 3.23/3.44  
% 3.23/3.44  This is a Horn set with equality.  The strategy will be
% 3.23/3.44  Knuth-Bendix and hyper_res, with positive clauses in
% 3.23/3.44  sos and nonpositive clauses in usable.
% 3.23/3.44  
% 3.23/3.44     dependent: set(knuth_bendix).
% 3.23/3.44     dependent: set(anl_eq).
% 3.23/3.44     dependent: set(para_from).
% 3.23/3.44     dependent: set(para_into).
% 3.23/3.44     dependent: clear(para_from_right).
% 3.23/3.44     dependent: clear(para_into_right).
% 3.23/3.44     dependent: set(para_from_vars).
% 3.23/3.44     dependent: set(eq_units_both_ways).
% 3.23/3.44     dependent: set(dynamic_demod_all).
% 3.23/3.44     dependent: set(dynamic_demod).
% 3.23/3.44     dependent: set(order_eq).
% 3.23/3.44     dependent: set(back_demod).
% 3.23/3.44     dependent: set(lrpo).
% 3.23/3.44     dependent: set(hyper_res).
% 3.23/3.44     dependent: clear(order_hyper).
% 3.23/3.44  
% 3.23/3.44  ------------> process usable:
% 3.23/3.44  ** KEPT (pick-wt=6): 1 [] -smoke(A,B)|event(A,B).
% 3.23/3.44  ** KEPT (pick-wt=6): 2 [] -event(A,B)|eventuality(A,B).
% 3.23/3.44  ** KEPT (pick-wt=6): 3 [] -eventuality(A,B)|thing(A,B).
% 3.23/3.44  ** KEPT (pick-wt=6): 4 [] -thing(A,B)|singleton(A,B).
% 3.23/3.44  ** KEPT (pick-wt=6): 5 [] -eventuality(A,B)|specific(A,B).
% 3.23/3.44  ** KEPT (pick-wt=6): 6 [] -eventuality(A,B)|nonexistent(A,B).
% 3.23/3.44  ** KEPT (pick-wt=6): 7 [] -eventuality(A,B)|unisex(A,B).
% 3.23/3.44  ** KEPT (pick-wt=6): 8 [] -proposition(A,B)|relation(A,B).
% 3.23/3.44  ** KEPT (pick-wt=6): 9 [] -relation(A,B)|abstraction(A,B).
% 3.23/3.44  ** KEPT (pick-wt=6): 10 [] -abstraction(A,B)|thing(A,B).
% 3.23/3.44  ** KEPT (pick-wt=6): 11 [] -abstraction(A,B)|nonhuman(A,B).
% 3.23/3.44  ** KEPT (pick-wt=6): 12 [] -abstraction(A,B)|general(A,B).
% 3.23/3.44  ** KEPT (pick-wt=6): 13 [] -abstraction(A,B)|unisex(A,B).
% 3.23/3.44  ** KEPT (pick-wt=6): 14 [] -state(A,B)|eventuality(A,B).
% 3.23/3.44  ** KEPT (pick-wt=6): 15 [] -state(A,B)|event(A,B).
% 3.23/3.44  ** KEPT (pick-wt=6): 16 [] -man(A,B)|human_person(A,B).
% 3.23/3.44  ** KEPT (pick-wt=6): 17 [] -human_person(A,B)|organism(A,B).
% 3.23/3.44  ** KEPT (pick-wt=6): 18 [] -organism(A,B)|entity(A,B).
% 3.23/3.44  ** KEPT (pick-wt=6): 19 [] -entity(A,B)|thing(A,B).
% 3.23/3.44  ** KEPT (pick-wt=6): 20 [] -entity(A,B)|specific(A,B).
% 3.23/3.44  ** KEPT (pick-wt=6): 21 [] -entity(A,B)|existent(A,B).
% 3.23/3.44  ** KEPT (pick-wt=6): 22 [] -organism(A,B)|impartial(A,B).
% 3.23/3.44  ** KEPT (pick-wt=6): 23 [] -organism(A,B)|living(A,B).
% 3.23/3.44  ** KEPT (pick-wt=6): 24 [] -human_person(A,B)|human(A,B).
% 3.23/3.44  ** KEPT (pick-wt=6): 25 [] -human_person(A,B)|animate(A,B).
% 3.23/3.44  ** KEPT (pick-wt=6): 26 [] -man(A,B)|male(A,B).
% 3.23/3.44  ** KEPT (pick-wt=6): 27 [] -forename(A,B)|relname(A,B).
% 3.23/3.44  ** KEPT (pick-wt=6): 28 [] -relname(A,B)|relation(A,B).
% 3.23/3.44  ** KEPT (pick-wt=6): 29 [] -vincent_forename(A,B)|forename(A,B).
% 3.23/3.44  ** KEPT (pick-wt=6): 30 [] -jules_forename(A,B)|forename(A,B).
% 3.23/3.44  ** KEPT (pick-wt=6): 31 [] -male(A,B)| -unisex(A,B).
% 3.23/3.44  ** KEPT (pick-wt=6): 32 [] -general(A,B)| -specific(A,B).
% 3.23/3.44  ** KEPT (pick-wt=6): 33 [] -human(A,B)| -nonhuman(A,B).
% 3.23/3.44  ** KEPT (pick-wt=6): 34 [] -nonexistent(A,B)| -existent(A,B).
% 3.23/3.44  ** KEPT (pick-wt=8): 35 [] -be(A,B,C,D)|C=D.
% 3.23/3.44  ** KEPT (pick-wt=9): 36 [] -accessible_world(A,B)| -smoke(A,C)|smoke(B,C).
% 3.23/3.44  ** KEPT (pick-wt=9): 37 [] -accessible_world(A,B)| -event(A,C)|event(B,C).
% 3.23/3.44  ** KEPT (pick-wt=9): 38 [] -accessible_world(A,B)| -eventuality(A,C)|eventuality(B,C).
% 3.23/3.44  ** KEPT (pick-wt=9): 39 [] -accessible_world(A,B)| -thing(A,C)|thing(B,C).
% 3.23/3.44  ** KEPT (pick-wt=9): 40 [] -accessible_world(A,B)| -singleton(A,C)|singleton(B,C).
% 3.23/3.44  ** KEPT (pick-wt=9): 41 [] -accessible_world(A,B)| -specific(A,C)|specific(B,C).
% 3.23/3.44  ** KEPT (pick-wt=9): 42 [] -accessible_world(A,B)| -nonexistent(A,C)|nonexistent(B,C).
% 3.23/3.44  ** KEPT (pick-wt=9): 43 [] -accessible_world(A,B)| -unisex(A,C)|unisex(B,C).
% 3.23/3.44  ** KEPT (pick-wt=9): 44 [] -accessible_world(A,B)| -present(A,C)|present(B,C).
% 3.23/3.44  ** KEPT (pick-wt=9): 45 [] -accessible_world(A,B)| -think_believe_consider(A,C)|think_believe_consider(B,C).
% 3.23/3.44  ** KEPT (pick-wt=9): 46 [] -accessible_world(A,B)| -proposition(A,C)|proposition(B,C).
% 3.23/3.44  ** KEPT (pick-wt=9): 47 [] -accessible_world(A,B)| -relation(A,C)|relation(B,C).
% 3.23/3.44  ** KEPT (pick-wt=9): 48 [] -accessible_world(A,B)| -abstraction(A,C)|abstraction(B,C).
% 3.23/3.44  ** KEPT (pick-wt=9): 49 [] -accessible_world(A,B)| -nonhuman(A,C)|nonhuman(B,C).
% 3.23/3.44  ** KEPT (pick-wt=9): 50 [] -accessible_world(A,B)| -general(A,C)|general(B,C).
% 3.23/3.44  ** KEPT (pick-wt=9): 51 [] -accessible_world(A,B)| -state(A,C)|state(B,C).
% 3.23/3.44  ** KEPT (pick-wt=9): 52 [] -accessible_world(A,B)| -man(A,C)|man(B,C).
% 3.23/3.44  ** KEPT (pick-wt=9): 53 [] -accessible_world(A,B)| -human_person(A,C)|human_person(B,C).
% 3.23/3.44  ** KEPT (pick-wt=9): 54 [] -accessible_world(A,B)| -organism(A,C)|organism(B,C).
% 3.23/3.44  ** KEPT (pick-wt=9): 55 [] -accessible_world(A,B)| -entity(A,C)|entity(B,C).
% 3.23/3.44  ** KEPT (pick-wt=9): 56 [] -accessible_world(A,B)| -existent(A,C)|existent(B,C).
% 3.23/3.44  ** KEPT (pick-wt=9): 57 [] -accessible_world(A,B)| -impartial(A,C)|impartial(B,C).
% 3.23/3.44  ** KEPT (pick-wt=9): 58 [] -accessible_world(A,B)| -living(A,C)|living(B,C).
% 3.23/3.44  ** KEPT (pick-wt=9): 59 [] -accessible_world(A,B)| -human(A,C)|human(B,C).
% 3.23/3.44  ** KEPT (pick-wt=9): 60 [] -accessible_world(A,B)| -animate(A,C)|animate(B,C).
% 3.23/3.44  ** KEPT (pick-wt=9): 61 [] -accessible_world(A,B)| -male(A,C)|male(B,C).
% 3.23/3.44  ** KEPT (pick-wt=9): 62 [] -accessible_world(A,B)| -forename(A,C)|forename(B,C).
% 3.23/3.44  ** KEPT (pick-wt=9): 63 [] -accessible_world(A,B)| -relname(A,C)|relname(B,C).
% 3.23/3.44  ** KEPT (pick-wt=9): 64 [] -accessible_world(A,B)| -vincent_forename(A,C)|vincent_forename(B,C).
% 3.23/3.44  ** KEPT (pick-wt=9): 65 [] -accessible_world(A,B)| -jules_forename(A,C)|jules_forename(B,C).
% 3.23/3.44  ** KEPT (pick-wt=11): 66 [] -accessible_world(A,B)| -agent(A,C,D)|agent(B,C,D).
% 3.23/3.44  ** KEPT (pick-wt=11): 67 [] -accessible_world(A,B)| -theme(A,C,D)|theme(B,C,D).
% 3.23/3.44  ** KEPT (pick-wt=11): 68 [] -accessible_world(A,B)| -of(A,C,D)|of(B,C,D).
% 3.23/3.44  ** KEPT (pick-wt=13): 69 [] -accessible_world(A,B)| -be(A,C,D,E)|be(B,C,D,E).
% 3.23/3.44  ** KEPT (pick-wt=20): 70 [] -forename(A,B)| -of(A,C,D)| -forename(A,C)| -of(A,B,D)| -entity(A,D)|C=B.
% 3.23/3.44  ** KEPT (pick-wt=31): 71 [] -proposition(A,B)| -proposition(A,C)| -theme(A,D,B)| -think_believe_consider(A,D)| -think_believe_consider(A,E)| -theme(A,E,C)| -agent(A,E,F)| -agent(A,D,F)|B=C.
% 3.23/3.44  ** KEPT (pick-wt=7): 72 [] -man(skc12,A)|smoke(skc12,skf2(B)).
% 3.23/3.44  ** KEPT (pick-wt=7): 73 [] -man(skc12,A)|present(skc12,skf2(B)).
% 3.23/3.44  ** KEPT (pick-wt=7): 74 [] -man(skc12,A)|event(skc12,skf2(B)).
% 3.23/3.44  ** KEPT (pick-wt=8): 75 [] -man(skc12,A)|agent(skc12,skf2(A),A).
% 3.23/3.44  ** KEPT (pick-wt=112): 76 [] -state(A,B)| -be(A,B,C,C)| -man(A,C)| -of(A,D,C)| -jules_forename(A,D)| -forename(A,D)| -jules_forename(A,E)| -forename(A,E)| -smoke(F,G)| -present(F,G)| -agent(F,G,H)| -event(F,G)| -man(A,H)| -of(A,E,H)| -proposition(A,F)| -accessible_world(A,F)| -accessible_world(A,I)| -proposition(A,I)| -theme(A,J,I)| -event(A,J)| -present(A,J)| -think_believe_consider(A,J)| -man(A,K)| -agent(A,J,K)| -agent(A,L,K)| -forename(A,M)| -vincent_forename(A,M)| -of(A,M,K)| -think_believe_consider(A,L)| -present(A,L)| -event(A,L)| -theme(A,L,F)| -actual_world(A)|man(I,skf4(I)).
% 3.72/3.97  ** KEPT (pick-wt=122): 77 [] -state(A,B)| -be(A,B,C,C)| -man(A,C)| -of(A,D,C)| -jules_forename(A,D)| -forename(A,D)| -jules_forename(A,E)| -forename(A,E)| -smoke(F,G)| -present(F,G)| -agent(F,G,H)| -event(F,G)| -man(A,H)| -of(A,E,H)| -proposition(A,F)| -accessible_world(A,F)| -smoke(I,J)| -present(I,J)| -agent(I,J,skf4(I))| -event(I,J)| -accessible_world(A,I)| -proposition(A,I)| -theme(A,K,I)| -event(A,K)| -present(A,K)| -think_believe_consider(A,K)| -man(A,L)| -agent(A,K,L)| -agent(A,M,L)| -forename(A,N)| -vincent_forename(A,N)| -of(A,N,L)| -think_believe_consider(A,M)| -present(A,M)| -event(A,M)| -theme(A,M,F)| -actual_world(A).
% 3.72/3.97  
% 3.72/3.97  ------------> process sos:
% 3.72/3.97  ** KEPT (pick-wt=3): 78 [] A=A.
% 3.72/3.97  ** KEPT (pick-wt=2): 79 [] actual_world(skc8).
% 3.72/3.97  ** KEPT (pick-wt=3): 80 [] man(skc8,skc15).
% 3.72/3.97  ** KEPT (pick-wt=3): 81 [] forename(skc8,skc14).
% 3.72/3.97  ** KEPT (pick-wt=3): 82 [] vincent_forename(skc8,skc14).
% 3.72/3.97  ** KEPT (pick-wt=3): 83 [] event(skc8,skc13).
% 3.72/3.97  ** KEPT (pick-wt=3): 84 [] present(skc8,skc13).
% 3.72/3.97  ** KEPT (pick-wt=3): 85 [] think_believe_consider(skc8,skc13).
% 3.72/3.97  ** KEPT (pick-wt=3): 86 [] jules_forename(skc8,skc11).
% 3.72/3.97  ** KEPT (pick-wt=3): 87 [] forename(skc8,skc11).
% 3.72/3.97  ** KEPT (pick-wt=3): 88 [] man(skc8,skc10).
% 3.72/3.97  ** KEPT (pick-wt=3): 89 [] state(skc8,skc9).
% 3.72/3.97  ** KEPT (pick-wt=3): 90 [] accessible_world(skc8,skc12).
% 3.72/3.97  ** KEPT (pick-wt=3): 91 [] proposition(skc8,skc12).
% 3.72/3.97  ** KEPT (pick-wt=4): 92 [] of(skc8,skc14,skc15).
% 3.72/3.97  ** KEPT (pick-wt=4): 93 [] agent(skc8,skc13,skc15).
% 3.72/3.97  ** KEPT (pick-wt=4): 94 [] theme(skc8,skc13,skc12).
% 3.72/3.97  ** KEPT (pick-wt=4): 95 [] of(skc8,skc11,skc10).
% 3.72/3.97  ** KEPT (pick-wt=5): 96 [] be(skc8,skc9,skc10,skc10).
% 3.72/3.97    Following clause subsumed by 78 during input processing: 0 [copy,78,flip.1] A=A.
% 3.72/3.97  
% 3.72/3.97  ======= end of input processing =======
% 3.72/3.97  
% 3.72/3.97  =========== start of search ===========
% 3.72/3.97  
% 3.72/3.97  -------- PROOF -------- 
% 3.72/3.97  
% 3.72/3.97  -----> EMPTY CLAUSE at   0.54 sec ----> 1638 [hyper,1463,77,89,96,88,95,86,87,86,87,339,338,336,337,88,95,91,90,339,338,337,90,91,94,83,84,85,80,93,93,81,82,92,85,84,83,94,79] $F.
% 3.72/3.97  
% 3.72/3.97  Length of proof is 7.  Level of proof is 4.
% 3.72/3.97  
% 3.72/3.97  ---------------- PROOF ----------------
% 3.72/3.97  % SZS status Unsatisfiable
% 3.72/3.97  % SZS output start Refutation
% See solution above
% 3.72/3.97  ------------ end of proof -------------
% 3.72/3.97  
% 3.72/3.97  
% 3.72/3.97  Search stopped by max_proofs option.
% 3.72/3.97  
% 3.72/3.97  
% 3.72/3.97  Search stopped by max_proofs option.
% 3.72/3.97  
% 3.72/3.97  ============ end of search ============
% 3.72/3.97  
% 3.72/3.97  -------------- statistics -------------
% 3.72/3.97  clauses given                215
% 3.72/3.97  clauses generated           1668
% 3.72/3.97  clauses kept                1637
% 3.72/3.97  clauses forward subsumed     127
% 3.72/3.97  clauses back subsumed         27
% 3.72/3.97  Kbytes malloced             3906
% 3.72/3.97  
% 3.72/3.97  ----------- times (seconds) -----------
% 3.72/3.97  user CPU time          0.54          (0 hr, 0 min, 0 sec)
% 3.72/3.97  system CPU time        0.00          (0 hr, 0 min, 0 sec)
% 3.72/3.97  wall-clock time        3             (0 hr, 0 min, 3 sec)
% 3.72/3.97  
% 3.72/3.97  That finishes the proof of the theorem.
% 3.72/3.97  
% 3.72/3.97  Process 13550 finished Wed Jul 27 08:25:49 2022
% 3.72/3.97  Otter interrupted
% 3.72/3.97  PROOF FOUND
%------------------------------------------------------------------------------