TSTP Solution File: NLP143+1 by Otter---3.3

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Otter---3.3
% Problem  : NLP143+1 : TPTP v8.1.0. Released v2.4.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : otter-tptp-script %s

% Computer : n017.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 13:06:56 EDT 2022

% Result   : Theorem 2.64s 2.91s
% Output   : Refutation 2.64s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   10
%            Number of leaves      :   15
% Syntax   : Number of clauses     :   30 (  16 unt;   0 nHn;  30 RR)
%            Number of literals    :   44 (   2 equ;  15 neg)
%            Maximal clause size   :    2 (   1 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :   15 (  13 usr;   1 prp; 0-4 aty)
%            Number of functors    :    5 (   5 usr;   2 con; 0-2 aty)
%            Number of variables   :   27 (   2 sgn)

% Comments : 
%------------------------------------------------------------------------------
cnf(1,axiom,
    ( ~ furniture(A,B)
    | instrumentality(A,B) ),
    file('NLP143+1.p',unknown),
    [] ).

cnf(2,axiom,
    ( ~ seat(A,B)
    | furniture(A,B) ),
    file('NLP143+1.p',unknown),
    [] ).

cnf(3,axiom,
    ( ~ frontseat(A,B)
    | seat(A,B) ),
    file('NLP143+1.p',unknown),
    [] ).

cnf(16,axiom,
    ( ~ object(A,B)
    | unisex(A,B) ),
    file('NLP143+1.p',unknown),
    [] ).

cnf(20,axiom,
    ( ~ artifact(A,B)
    | object(A,B) ),
    file('NLP143+1.p',unknown),
    [] ).

cnf(21,axiom,
    ( ~ instrumentality(A,B)
    | artifact(A,B) ),
    file('NLP143+1.p',unknown),
    [] ).

cnf(37,axiom,
    ( ~ man(A,B)
    | male(A,B) ),
    file('NLP143+1.p',unknown),
    [] ).

cnf(49,axiom,
    ( ~ fellow(A,B)
    | man(A,B) ),
    file('NLP143+1.p',unknown),
    [] ).

cnf(56,axiom,
    ( ~ unisex(A,B)
    | ~ male(A,B) ),
    file('NLP143+1.p',unknown),
    [] ).

cnf(59,axiom,
    ( ~ be(A,B,C,D)
    | C = D ),
    file('NLP143+1.p',unknown),
    [] ).

cnf(61,axiom,
    ( ~ two(A,B)
    | member(A,dollar_f1(A,B),B) ),
    file('NLP143+1.p',unknown),
    [] ).

cnf(69,axiom,
    ( ~ member(dollar_c6,A,dollar_c1)
    | frontseat(dollar_c6,dollar_f4(A)) ),
    file('NLP143+1.p',unknown),
    [] ).

cnf(71,axiom,
    ( ~ member(dollar_c6,A,dollar_c1)
    | be(dollar_c6,dollar_f5(A),A,dollar_f4(A)) ),
    file('NLP143+1.p',unknown),
    [] ).

cnf(73,axiom,
    ( ~ member(dollar_c6,A,dollar_c1)
    | fellow(dollar_c6,A) ),
    file('NLP143+1.p',unknown),
    [] ).

cnf(96,axiom,
    two(dollar_c6,dollar_c1),
    file('NLP143+1.p',unknown),
    [] ).

cnf(320,plain,
    member(dollar_c6,dollar_f1(dollar_c6,dollar_c1),dollar_c1),
    inference(hyper,[status(thm)],[96,61]),
    [iquote('hyper,96,61')] ).

cnf(1278,plain,
    fellow(dollar_c6,dollar_f1(dollar_c6,dollar_c1)),
    inference(hyper,[status(thm)],[320,73]),
    [iquote('hyper,320,73')] ).

cnf(1280,plain,
    be(dollar_c6,dollar_f5(dollar_f1(dollar_c6,dollar_c1)),dollar_f1(dollar_c6,dollar_c1),dollar_f4(dollar_f1(dollar_c6,dollar_c1))),
    inference(hyper,[status(thm)],[320,71]),
    [iquote('hyper,320,71')] ).

cnf(1282,plain,
    frontseat(dollar_c6,dollar_f4(dollar_f1(dollar_c6,dollar_c1))),
    inference(hyper,[status(thm)],[320,69]),
    [iquote('hyper,320,69')] ).

cnf(1318,plain,
    man(dollar_c6,dollar_f1(dollar_c6,dollar_c1)),
    inference(hyper,[status(thm)],[1278,49]),
    [iquote('hyper,1278,49')] ).

cnf(1320,plain,
    male(dollar_c6,dollar_f1(dollar_c6,dollar_c1)),
    inference(hyper,[status(thm)],[1318,37]),
    [iquote('hyper,1318,37')] ).

cnf(1350,plain,
    seat(dollar_c6,dollar_f4(dollar_f1(dollar_c6,dollar_c1))),
    inference(hyper,[status(thm)],[1282,3]),
    [iquote('hyper,1282,3')] ).

cnf(1358,plain,
    furniture(dollar_c6,dollar_f4(dollar_f1(dollar_c6,dollar_c1))),
    inference(hyper,[status(thm)],[1350,2]),
    [iquote('hyper,1350,2')] ).

cnf(1365,plain,
    instrumentality(dollar_c6,dollar_f4(dollar_f1(dollar_c6,dollar_c1))),
    inference(hyper,[status(thm)],[1358,1]),
    [iquote('hyper,1358,1')] ).

cnf(1368,plain,
    artifact(dollar_c6,dollar_f4(dollar_f1(dollar_c6,dollar_c1))),
    inference(hyper,[status(thm)],[1365,21]),
    [iquote('hyper,1365,21')] ).

cnf(1370,plain,
    object(dollar_c6,dollar_f4(dollar_f1(dollar_c6,dollar_c1))),
    inference(hyper,[status(thm)],[1368,20]),
    [iquote('hyper,1368,20')] ).

cnf(1375,plain,
    unisex(dollar_c6,dollar_f4(dollar_f1(dollar_c6,dollar_c1))),
    inference(hyper,[status(thm)],[1370,16]),
    [iquote('hyper,1370,16')] ).

cnf(1390,plain,
    dollar_f4(dollar_f1(dollar_c6,dollar_c1)) = dollar_f1(dollar_c6,dollar_c1),
    inference(flip,[status(thm),theory(equality)],[inference(hyper,[status(thm)],[1280,59])]),
    [iquote('hyper,1280,59,flip.1')] ).

cnf(1391,plain,
    unisex(dollar_c6,dollar_f1(dollar_c6,dollar_c1)),
    inference(demod,[status(thm),theory(equality)],[inference(back_demod,[status(thm)],[1375]),1390]),
    [iquote('back_demod,1375,demod,1390')] ).

cnf(1400,plain,
    $false,
    inference(hyper,[status(thm)],[1391,56,1320]),
    [iquote('hyper,1391,56,1320')] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.12  % Problem  : NLP143+1 : TPTP v8.1.0. Released v2.4.0.
% 0.00/0.12  % Command  : otter-tptp-script %s
% 0.12/0.33  % Computer : n017.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 08:07:18 EDT 2022
% 0.12/0.33  % CPUTime  : 
% 1.93/2.12  
% 1.93/2.12  
% 1.93/2.12  WARNING, multiple arity: set/1, set/2.
% 1.93/2.12  
% 1.93/2.12  ----- Otter 3.3f, August 2004 -----
% 1.93/2.12  The process was started by sandbox2 on n017.cluster.edu,
% 1.93/2.12  Wed Jul 27 08:07:18 2022
% 1.93/2.12  The command was "./otter".  The process ID is 7559.
% 1.93/2.12  
% 1.93/2.12  set(prolog_style_variables).
% 1.93/2.12  set(auto).
% 1.93/2.12     dependent: set(auto1).
% 1.93/2.12     dependent: set(process_input).
% 1.93/2.12     dependent: clear(print_kept).
% 1.93/2.12     dependent: clear(print_new_demod).
% 1.93/2.12     dependent: clear(print_back_demod).
% 1.93/2.12     dependent: clear(print_back_sub).
% 1.93/2.12     dependent: set(control_memory).
% 1.93/2.12     dependent: assign(max_mem, 12000).
% 1.93/2.12     dependent: assign(pick_given_ratio, 4).
% 1.93/2.12     dependent: assign(stats_level, 1).
% 1.93/2.12     dependent: assign(max_seconds, 10800).
% 1.93/2.12  clear(print_given).
% 1.93/2.12  
% 1.93/2.12  formula_list(usable).
% 1.93/2.12  all A (A=A).
% 1.93/2.12  all U V (furniture(U,V)->instrumentality(U,V)).
% 1.93/2.12  all U V (seat(U,V)->furniture(U,V)).
% 1.93/2.12  all U V (frontseat(U,V)->seat(U,V)).
% 1.93/2.12  all U V (location(U,V)->object(U,V)).
% 1.93/2.12  all U V (city(U,V)->location(U,V)).
% 1.93/2.12  all U V (hollywood_placename(U,V)->placename(U,V)).
% 1.93/2.12  all U V (abstraction(U,V)->unisex(U,V)).
% 1.93/2.12  all U V (abstraction(U,V)->general(U,V)).
% 1.93/2.12  all U V (abstraction(U,V)->nonhuman(U,V)).
% 1.93/2.12  all U V (abstraction(U,V)->thing(U,V)).
% 1.93/2.12  all U V (relation(U,V)->abstraction(U,V)).
% 1.93/2.12  all U V (relname(U,V)->relation(U,V)).
% 1.93/2.12  all U V (placename(U,V)->relname(U,V)).
% 1.93/2.12  all U V (way(U,V)->artifact(U,V)).
% 1.93/2.12  all U V (street(U,V)->way(U,V)).
% 1.93/2.12  all U V (object(U,V)->unisex(U,V)).
% 1.93/2.12  all U V (object(U,V)->impartial(U,V)).
% 1.93/2.12  all U V (object(U,V)->nonliving(U,V)).
% 1.93/2.12  all U V (object(U,V)->entity(U,V)).
% 1.93/2.12  all U V (artifact(U,V)->object(U,V)).
% 1.93/2.12  all U V (instrumentality(U,V)->artifact(U,V)).
% 1.93/2.12  all U V (transport(U,V)->instrumentality(U,V)).
% 1.93/2.12  all U V (vehicle(U,V)->transport(U,V)).
% 1.93/2.12  all U V (car(U,V)->vehicle(U,V)).
% 1.93/2.12  all U V (chevy(U,V)->car(U,V)).
% 1.93/2.12  all U V (barrel(U,V)->event(U,V)).
% 1.93/2.12  all U V (event(U,V)->eventuality(U,V)).
% 1.93/2.12  all U V (state(U,V)->event(U,V)).
% 1.93/2.12  all U V (eventuality(U,V)->unisex(U,V)).
% 1.93/2.12  all U V (eventuality(U,V)->nonexistent(U,V)).
% 1.93/2.12  all U V (eventuality(U,V)->specific(U,V)).
% 1.93/2.12  all U V (eventuality(U,V)->thing(U,V)).
% 1.93/2.12  all U V (state(U,V)->eventuality(U,V)).
% 1.93/2.12  all U V (two(U,V)->group(U,V)).
% 1.93/2.12  all U V (set(U,V)->multiple(U,V)).
% 1.93/2.12  all U V (group(U,V)->set(U,V)).
% 1.93/2.12  all U V (man(U,V)->male(U,V)).
% 1.93/2.12  all U V (human_person(U,V)->animate(U,V)).
% 1.93/2.12  all U V (human_person(U,V)->human(U,V)).
% 1.93/2.12  all U V (organism(U,V)->living(U,V)).
% 1.93/2.12  all U V (organism(U,V)->impartial(U,V)).
% 1.93/2.12  all U V (entity(U,V)->existent(U,V)).
% 1.93/2.12  all U V (entity(U,V)->specific(U,V)).
% 1.93/2.12  all U V (thing(U,V)->singleton(U,V)).
% 1.93/2.12  all U V (entity(U,V)->thing(U,V)).
% 1.93/2.12  all U V (organism(U,V)->entity(U,V)).
% 1.93/2.12  all U V (human_person(U,V)->organism(U,V)).
% 1.93/2.12  all U V (man(U,V)->human_person(U,V)).
% 1.93/2.12  all U V (fellow(U,V)->man(U,V)).
% 1.93/2.12  all U V (animate(U,V)-> -nonliving(U,V)).
% 1.93/2.12  all U V (existent(U,V)-> -nonexistent(U,V)).
% 1.93/2.12  all U V (nonhuman(U,V)-> -human(U,V)).
% 1.93/2.12  all U V (nonliving(U,V)-> -living(U,V)).
% 1.93/2.12  all U V (singleton(U,V)-> -multiple(U,V)).
% 1.93/2.12  all U V (specific(U,V)-> -general(U,V)).
% 1.93/2.12  all U V (unisex(U,V)-> -male(U,V)).
% 1.93/2.12  all U V (young(U,V)-> -old(U,V)).
% 1.93/2.12  all U V W (entity(U,V)&placename(U,W)&of(U,W,V)-> -(exists X (placename(U,X)&X!=W&of(U,X,V)))).
% 1.93/2.12  all U V W X (be(U,V,W,X)->W=X).
% 1.93/2.12  all U V (two(U,V)<-> (exists W (member(U,W,V)& (exists X (member(U,X,V)&X!=W& (all Y (member(U,Y,V)->Y=X|Y=W))))))).
% 1.93/2.12  all U (-(exists V member(U,V,V))).
% 1.93/2.12  -(-(exists U (actual_world(U)& (exists V W X Y Z (of(U,V,W)&city(U,W)&hollywood_placename(U,V)&placename(U,V)&chevy(U,W)&white(U,W)&dirty(U,W)&old(U,W)&street(U,X)&lonely(U,X)&event(U,Y)&agent(U,Y,W)&present(U,Y)&barrel(U,Y)&down(U,Y,X)&in(U,Y,W)& (all X1 (member(U,X1,Z)-> (exists X2 X3 (frontseat(U,X3)&state(U,X2)&be(U,X2,X1,X3)&in(U,X3,X3)))))&two(U,Z)&group(U,Z)& (all X4 (member(U,X4,Z)->fellow(U,X4)&young(U,X4)))))))).
% 1.93/2.12  end_of_list.
% 1.93/2.12  
% 1.93/2.12  -------> usable clausifies to:
% 1.93/2.12  
% 1.93/2.12  list(usable).
% 1.93/2.12  0 [] A=A.
% 1.93/2.12  0 [] -furniture(U,V)|instrumentality(U,V).
% 1.93/2.12  0 [] -seat(U,V)|furniture(U,V).
% 1.93/2.12  0 [] -frontseat(U,V)|seat(U,V).
% 1.93/2.12  0 [] -location(U,V)|object(U,V).
% 1.93/2.12  0 [] -city(U,V)|location(U,V).
% 1.93/2.12  0 [] -hollywood_placename(U,V)|placename(U,V).
% 1.93/2.12  0 [] -abstraction(U,V)|unisex(U,V).
% 1.93/2.12  0 [] -abstraction(U,V)|general(U,V).
% 1.93/2.12  0 [] -abstraction(U,V)|nonhuman(U,V).
% 1.93/2.12  0 [] -abstraction(U,V)|thing(U,V).
% 1.93/2.12  0 [] -relation(U,V)|abstraction(U,V).
% 1.93/2.12  0 [] -relname(U,V)|relation(U,V).
% 1.93/2.12  0 [] -placename(U,V)|relname(U,V).
% 1.93/2.12  0 [] -way(U,V)|artifact(U,V).
% 1.93/2.12  0 [] -street(U,V)|way(U,V).
% 1.93/2.12  0 [] -object(U,V)|unisex(U,V).
% 1.93/2.12  0 [] -object(U,V)|impartial(U,V).
% 1.93/2.12  0 [] -object(U,V)|nonliving(U,V).
% 1.93/2.12  0 [] -object(U,V)|entity(U,V).
% 1.93/2.12  0 [] -artifact(U,V)|object(U,V).
% 1.93/2.12  0 [] -instrumentality(U,V)|artifact(U,V).
% 1.93/2.12  0 [] -transport(U,V)|instrumentality(U,V).
% 1.93/2.12  0 [] -vehicle(U,V)|transport(U,V).
% 1.93/2.12  0 [] -car(U,V)|vehicle(U,V).
% 1.93/2.12  0 [] -chevy(U,V)|car(U,V).
% 1.93/2.12  0 [] -barrel(U,V)|event(U,V).
% 1.93/2.12  0 [] -event(U,V)|eventuality(U,V).
% 1.93/2.12  0 [] -state(U,V)|event(U,V).
% 1.93/2.12  0 [] -eventuality(U,V)|unisex(U,V).
% 1.93/2.12  0 [] -eventuality(U,V)|nonexistent(U,V).
% 1.93/2.12  0 [] -eventuality(U,V)|specific(U,V).
% 1.93/2.12  0 [] -eventuality(U,V)|thing(U,V).
% 1.93/2.12  0 [] -state(U,V)|eventuality(U,V).
% 1.93/2.12  0 [] -two(U,V)|group(U,V).
% 1.93/2.12  0 [] -set(U,V)|multiple(U,V).
% 1.93/2.12  0 [] -group(U,V)|set(U,V).
% 1.93/2.12  0 [] -man(U,V)|male(U,V).
% 1.93/2.12  0 [] -human_person(U,V)|animate(U,V).
% 1.93/2.12  0 [] -human_person(U,V)|human(U,V).
% 1.93/2.12  0 [] -organism(U,V)|living(U,V).
% 1.93/2.12  0 [] -organism(U,V)|impartial(U,V).
% 1.93/2.12  0 [] -entity(U,V)|existent(U,V).
% 1.93/2.12  0 [] -entity(U,V)|specific(U,V).
% 1.93/2.12  0 [] -thing(U,V)|singleton(U,V).
% 1.93/2.12  0 [] -entity(U,V)|thing(U,V).
% 1.93/2.12  0 [] -organism(U,V)|entity(U,V).
% 1.93/2.12  0 [] -human_person(U,V)|organism(U,V).
% 1.93/2.12  0 [] -man(U,V)|human_person(U,V).
% 1.93/2.12  0 [] -fellow(U,V)|man(U,V).
% 1.93/2.12  0 [] -animate(U,V)| -nonliving(U,V).
% 1.93/2.12  0 [] -existent(U,V)| -nonexistent(U,V).
% 1.93/2.12  0 [] -nonhuman(U,V)| -human(U,V).
% 1.93/2.12  0 [] -nonliving(U,V)| -living(U,V).
% 1.93/2.12  0 [] -singleton(U,V)| -multiple(U,V).
% 1.93/2.12  0 [] -specific(U,V)| -general(U,V).
% 1.93/2.12  0 [] -unisex(U,V)| -male(U,V).
% 1.93/2.12  0 [] -young(U,V)| -old(U,V).
% 1.93/2.12  0 [] -entity(U,V)| -placename(U,W)| -of(U,W,V)| -placename(U,X)|X=W| -of(U,X,V).
% 1.93/2.12  0 [] -be(U,V,W,X)|W=X.
% 1.93/2.12  0 [] -two(U,V)|member(U,$f2(U,V),V).
% 1.93/2.12  0 [] -two(U,V)|member(U,$f1(U,V),V).
% 1.93/2.12  0 [] -two(U,V)|$f1(U,V)!=$f2(U,V).
% 1.93/2.12  0 [] -two(U,V)| -member(U,Y,V)|Y=$f1(U,V)|Y=$f2(U,V).
% 1.93/2.12  0 [] two(U,V)| -member(U,W,V)| -member(U,X,V)|X=W|member(U,$f3(U,V,W,X),V).
% 1.93/2.12  0 [] two(U,V)| -member(U,W,V)| -member(U,X,V)|X=W|$f3(U,V,W,X)!=X.
% 1.93/2.12  0 [] two(U,V)| -member(U,W,V)| -member(U,X,V)|X=W|$f3(U,V,W,X)!=W.
% 1.93/2.12  0 [] -member(U,V,V).
% 1.93/2.12  0 [] actual_world($c6).
% 1.93/2.12  0 [] of($c6,$c5,$c4).
% 1.93/2.12  0 [] city($c6,$c4).
% 1.93/2.12  0 [] hollywood_placename($c6,$c5).
% 1.93/2.12  0 [] placename($c6,$c5).
% 1.93/2.12  0 [] chevy($c6,$c4).
% 1.93/2.12  0 [] white($c6,$c4).
% 1.93/2.12  0 [] dirty($c6,$c4).
% 1.93/2.12  0 [] old($c6,$c4).
% 1.93/2.12  0 [] street($c6,$c3).
% 1.93/2.12  0 [] lonely($c6,$c3).
% 1.93/2.12  0 [] event($c6,$c2).
% 1.93/2.12  0 [] agent($c6,$c2,$c4).
% 1.93/2.12  0 [] present($c6,$c2).
% 1.93/2.12  0 [] barrel($c6,$c2).
% 1.93/2.12  0 [] down($c6,$c2,$c3).
% 1.93/2.12  0 [] in($c6,$c2,$c4).
% 1.93/2.12  0 [] -member($c6,X1,$c1)|frontseat($c6,$f4(X1)).
% 1.93/2.12  0 [] -member($c6,X1,$c1)|state($c6,$f5(X1)).
% 1.93/2.12  0 [] -member($c6,X1,$c1)|be($c6,$f5(X1),X1,$f4(X1)).
% 1.93/2.12  0 [] -member($c6,X1,$c1)|in($c6,$f4(X1),$f4(X1)).
% 1.93/2.12  0 [] two($c6,$c1).
% 1.93/2.12  0 [] group($c6,$c1).
% 1.93/2.12  0 [] -member($c6,X4,$c1)|fellow($c6,X4).
% 1.93/2.12  0 [] -member($c6,X4,$c1)|young($c6,X4).
% 1.93/2.12  end_of_list.
% 1.93/2.12  
% 1.93/2.12  SCAN INPUT: prop=0, horn=0, equality=1, symmetry=0, max_lits=6.
% 1.93/2.12  
% 1.93/2.12  This ia a non-Horn set with equality.  The strategy will be
% 1.93/2.12  Knuth-Bendix, ordered hyper_res, factoring, and unit
% 1.93/2.12  deletion, with positive clauses in sos and nonpositive
% 1.93/2.12  clauses in usable.
% 1.93/2.12  
% 1.93/2.12     dependent: set(knuth_bendix).
% 1.93/2.12     dependent: set(anl_eq).
% 1.93/2.12     dependent: set(para_from).
% 1.93/2.12     dependent: set(para_into).
% 1.93/2.12     dependent: clear(para_from_right).
% 1.93/2.12     dependent: clear(para_into_right).
% 1.93/2.12     dependent: set(para_from_vars).
% 1.93/2.12     dependent: set(eq_units_both_ways).
% 1.93/2.12     dependent: set(dynamic_demod_all).
% 1.93/2.12     dependent: set(dynamic_demod).
% 1.93/2.12     dependent: set(order_eq).
% 1.93/2.12     dependent: set(back_demod).
% 1.93/2.12     dependent: set(lrpo).
% 1.93/2.12     dependent: set(hyper_res).
% 1.93/2.12     dependent: set(unit_deletion).
% 1.93/2.12     dependent: set(factor).
% 1.93/2.12  
% 1.93/2.12  ------------> process usable:
% 1.93/2.12  ** KEPT (pick-wt=6): 1 [] -furniture(A,B)|instrumentality(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 2 [] -seat(A,B)|furniture(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 3 [] -frontseat(A,B)|seat(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 4 [] -location(A,B)|object(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 5 [] -city(A,B)|location(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 6 [] -hollywood_placename(A,B)|placename(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 7 [] -abstraction(A,B)|unisex(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 8 [] -abstraction(A,B)|general(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 9 [] -abstraction(A,B)|nonhuman(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 10 [] -abstraction(A,B)|thing(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 11 [] -relation(A,B)|abstraction(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 12 [] -relname(A,B)|relation(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 13 [] -placename(A,B)|relname(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 14 [] -way(A,B)|artifact(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 15 [] -street(A,B)|way(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 16 [] -object(A,B)|unisex(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 17 [] -object(A,B)|impartial(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 18 [] -object(A,B)|nonliving(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 19 [] -object(A,B)|entity(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 20 [] -artifact(A,B)|object(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 21 [] -instrumentality(A,B)|artifact(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 22 [] -transport(A,B)|instrumentality(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 23 [] -vehicle(A,B)|transport(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 24 [] -car(A,B)|vehicle(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 25 [] -chevy(A,B)|car(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 26 [] -barrel(A,B)|event(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 27 [] -event(A,B)|eventuality(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 28 [] -state(A,B)|event(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 29 [] -eventuality(A,B)|unisex(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 30 [] -eventuality(A,B)|nonexistent(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 31 [] -eventuality(A,B)|specific(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 32 [] -eventuality(A,B)|thing(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 33 [] -state(A,B)|eventuality(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 34 [] -two(A,B)|group(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 35 [] -set(A,B)|multiple(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 36 [] -group(A,B)|set(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 37 [] -man(A,B)|male(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 38 [] -human_person(A,B)|animate(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 39 [] -human_person(A,B)|human(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 40 [] -organism(A,B)|living(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 41 [] -organism(A,B)|impartial(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 42 [] -entity(A,B)|existent(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 43 [] -entity(A,B)|specific(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 44 [] -thing(A,B)|singleton(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 45 [] -entity(A,B)|thing(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 46 [] -organism(A,B)|entity(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 47 [] -human_person(A,B)|organism(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 48 [] -man(A,B)|human_person(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 49 [] -fellow(A,B)|man(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 50 [] -animate(A,B)| -nonliving(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 51 [] -existent(A,B)| -nonexistent(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 52 [] -nonhuman(A,B)| -human(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 53 [] -nonliving(A,B)| -living(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 54 [] -singleton(A,B)| -multiple(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 55 [] -specific(A,B)| -general(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 56 [] -unisex(A,B)| -male(A,B).
% 1.93/2.12  ** KEPT (pick-wt=6): 57 [] -young(A,B)| -old(A,B).
% 1.93/2.12  ** KEPT (pick-wt=20): 58 [] -entity(A,B)| -placename(A,C)| -of(A,C,B)| -placename(A,D)|D=C| -of(A,D,B).
% 1.93/2.12  ** KEPT (pick-wt=8): 59 [] -be(A,B,C,D)|C=D.
% 1.93/2.12  ** KEPT (pick-wt=9): 60 [] -two(A,B)|member(A,$f2(A,B),B).
% 1.93/2.12  ** KEPT (pick-wt=9): 61 [] -two(A,B)|member(A,$f1(A,B),B).
% 1.93/2.12  ** KEPT (pick-wt=10): 63 [copy,62,flip.2] -two(A,B)|$f2(A,B)!=$f1(A,B).
% 1.93/2.12  ** KEPT (pick-wt=17): 64 [] -two(A,B)| -member(A,C,B)|C=$f1(A,B)|C=$f2(A,B).
% 1.93/2.12  ** KEPT (pick-wt=22): 65 [] two(A,B)| -member(A,C,B)| -member(A,D,B)|D=C|member(A,$f3(A,B,C,D),B).
% 1.93/2.12  ** KEPT (pick-wt=21): 66 [] two(A,B)| -member(A,C,B)| -member(A,D,B)|D=C|$f3(A,B,C,D)!=D.
% 1.93/2.12  ** KEPT (pick-wt=21): 67 [] two(A,B)| -member(A,C,B)| -member(A,D,B)|D=C|$f3(A,B,C,D)!=C.
% 1.93/2.12  ** KEPT (pick-wt=4): 68 [] -member(A,B,B).
% 1.93/2.12  ** KEPT (pick-wt=8): 69 [] -member($c6,A,$c1)|frontseat($c6,$f4(A)).
% 1.93/2.12  ** KEPT (pick-wt=8): 70 [] -member($c6,A,$c1)|state($c6,$f5(A)).
% 1.93/2.12  ** KEPT (pick-wt=11): 71 [] -member($c6,A,$c1)|be($c6,$f5(A),A,$f4(A)).
% 1.93/2.12  ** KEPT (pick-wt=10): 72 [] -member($c6,A,$c1)|in($c6,$f4(A),$f4(A)).
% 1.93/2.12  ** KEPT (pick-wt=7): 73 [] -member($c6,A,$c1)|fellow($c6,A).
% 1.93/2.12  ** KEPT (pick-wt=7): 74 [] -member($c6,A,$c1)|young($c6,A).
% 1.93/2.12  
% 1.93/2.12  ------------> process sos:
% 1.93/2.12  ** KEPT (pick-wt=3): 78 [] A=A.
% 1.93/2.12  ** KEPT (pick-wt=2): 79 [] actual_world($c6).
% 1.93/2.12  ** KEPT (pick-wt=4): 80 [] of($c6,$c5,$c4).
% 1.93/2.12  ** KEPT (pick-wt=3): 81 [] city($c6,$c4).
% 1.93/2.12  ** KEPT (pick-wt=3): 82 [] hollywood_placename($c6,$c5).
% 1.93/2.12  ** KEPT (pick-wt=3): 83 [] placename($c6,$c5).
% 2.64/2.91  ** KEPT (pick-wt=3): 84 [] chevy($c6,$c4).
% 2.64/2.91  ** KEPT (pick-wt=3): 85 [] white($c6,$c4).
% 2.64/2.91  ** KEPT (pick-wt=3): 86 [] dirty($c6,$c4).
% 2.64/2.91  ** KEPT (pick-wt=3): 87 [] old($c6,$c4).
% 2.64/2.91  ** KEPT (pick-wt=3): 88 [] street($c6,$c3).
% 2.64/2.91  ** KEPT (pick-wt=3): 89 [] lonely($c6,$c3).
% 2.64/2.91  ** KEPT (pick-wt=3): 90 [] event($c6,$c2).
% 2.64/2.91  ** KEPT (pick-wt=4): 91 [] agent($c6,$c2,$c4).
% 2.64/2.91  ** KEPT (pick-wt=3): 92 [] present($c6,$c2).
% 2.64/2.91  ** KEPT (pick-wt=3): 93 [] barrel($c6,$c2).
% 2.64/2.91  ** KEPT (pick-wt=4): 94 [] down($c6,$c2,$c3).
% 2.64/2.91  ** KEPT (pick-wt=4): 95 [] in($c6,$c2,$c4).
% 2.64/2.91  ** KEPT (pick-wt=3): 96 [] two($c6,$c1).
% 2.64/2.91  ** KEPT (pick-wt=3): 97 [] group($c6,$c1).
% 2.64/2.91    Following clause subsumed by 78 during input processing: 0 [copy,78,flip.1] A=A.
% 2.64/2.91  78 back subsumes 77.
% 2.64/2.91  78 back subsumes 76.
% 2.64/2.91  78 back subsumes 75.
% 2.64/2.91  
% 2.64/2.91  ======= end of input processing =======
% 2.64/2.91  
% 2.64/2.91  =========== start of search ===========
% 2.64/2.91  
% 2.64/2.91  
% 2.64/2.91  Resetting weight limit to 8.
% 2.64/2.91  
% 2.64/2.91  
% 2.64/2.91  Resetting weight limit to 8.
% 2.64/2.91  
% 2.64/2.91  sos_size=1161
% 2.64/2.91  
% 2.64/2.91  -------- PROOF -------- 
% 2.64/2.91  
% 2.64/2.91  -----> EMPTY CLAUSE at   0.80 sec ----> 1400 [hyper,1391,56,1320] $F.
% 2.64/2.91  
% 2.64/2.91  Length of proof is 14.  Level of proof is 9.
% 2.64/2.91  
% 2.64/2.91  ---------------- PROOF ----------------
% 2.64/2.91  % SZS status Theorem
% 2.64/2.91  % SZS output start Refutation
% See solution above
% 2.64/2.92  ------------ end of proof -------------
% 2.64/2.92  
% 2.64/2.92  
% 2.64/2.92  Search stopped by max_proofs option.
% 2.64/2.92  
% 2.64/2.92  
% 2.64/2.92  Search stopped by max_proofs option.
% 2.64/2.92  
% 2.64/2.92  ============ end of search ============
% 2.64/2.92  
% 2.64/2.92  -------------- statistics -------------
% 2.64/2.92  clauses given                327
% 2.64/2.92  clauses generated           9647
% 2.64/2.92  clauses kept                1397
% 2.64/2.92  clauses forward subsumed    1345
% 2.64/2.92  clauses back subsumed          9
% 2.64/2.92  Kbytes malloced             5859
% 2.64/2.92  
% 2.64/2.92  ----------- times (seconds) -----------
% 2.64/2.92  user CPU time          0.80          (0 hr, 0 min, 0 sec)
% 2.64/2.92  system CPU time        0.00          (0 hr, 0 min, 0 sec)
% 2.64/2.92  wall-clock time        2             (0 hr, 0 min, 2 sec)
% 2.64/2.92  
% 2.64/2.92  That finishes the proof of the theorem.
% 2.64/2.92  
% 2.64/2.92  Process 7559 finished Wed Jul 27 08:07:20 2022
% 2.64/2.92  Otter interrupted
% 2.64/2.92  PROOF FOUND
%------------------------------------------------------------------------------