TSTP Solution File: NLP094-1 by Otter---3.3

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Otter---3.3
% Problem  : NLP094-1 : TPTP v8.1.0. Released v2.4.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : otter-tptp-script %s

% Computer : n019.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 13:06:46 EDT 2022

% Result   : Unsatisfiable 1.77s 2.00s
% Output   : Refutation 1.77s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    6
%            Number of leaves      :   38
% Syntax   : Number of clauses     :   74 (  21 unt;  34 nHn;  22 RR)
%            Number of literals    :  245 (   0 equ; 138 neg)
%            Maximal clause size   :   16 (   3 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :   15 (  14 usr;   2 prp; 0-3 aty)
%            Number of functors    :   14 (  14 usr;   2 con; 0-1 aty)
%            Number of variables   :  124 (  40 sgn)

% Comments : 
%------------------------------------------------------------------------------
cnf(1,axiom,
    ( ~ actual_world(A)
    | ssSkC0
    | customer(A,skf39(A)) ),
    file('NLP094-1.p',unknown),
    [] ).

cnf(2,axiom,
    ( ~ actual_world(A)
    | ssSkC0
    | restaurant(A,skf34(A)) ),
    file('NLP094-1.p',unknown),
    [] ).

cnf(3,axiom,
    ( ~ actual_world(A)
    | ~ ssSkC0
    | customer(A,skf25(A)) ),
    file('NLP094-1.p',unknown),
    [] ).

cnf(4,axiom,
    ( ~ actual_world(A)
    | ~ ssSkC0
    | restaurant(A,skf20(A)) ),
    file('NLP094-1.p',unknown),
    [] ).

cnf(5,axiom,
    ( ~ actual_world(A)
    | ssSkC0
    | in(A,skf39(A),skf34(A)) ),
    file('NLP094-1.p',unknown),
    [] ).

cnf(6,axiom,
    ( ~ actual_world(A)
    | ~ ssSkC0
    | in(A,skf25(A),skf20(A)) ),
    file('NLP094-1.p',unknown),
    [] ).

cnf(7,axiom,
    ( ~ restaurant(skc13,A)
    | ~ in(skc13,B,A)
    | ~ customer(skc13,B)
    | ssSkC0
    | event(skc13,skf26(C)) ),
    file('NLP094-1.p',unknown),
    [] ).

cnf(8,axiom,
    ( ~ restaurant(skc13,A)
    | ~ in(skc13,B,A)
    | ~ customer(skc13,B)
    | ssSkC0
    | past(skc13,skf26(C)) ),
    file('NLP094-1.p',unknown),
    [] ).

cnf(9,axiom,
    ( ~ restaurant(skc13,A)
    | ~ in(skc13,B,A)
    | ~ customer(skc13,B)
    | ssSkC0
    | nonreflexive(skc13,skf26(C)) ),
    file('NLP094-1.p',unknown),
    [] ).

cnf(10,axiom,
    ( ~ restaurant(skc13,A)
    | ~ in(skc13,B,A)
    | ~ customer(skc13,B)
    | ssSkC0
    | see(skc13,skf26(C)) ),
    file('NLP094-1.p',unknown),
    [] ).

cnf(11,axiom,
    ( ~ restaurant(skc13,A)
    | ~ in(skc13,B,A)
    | ~ customer(skc13,B)
    | ssSkC0
    | human_person(skc13,skf29(C)) ),
    file('NLP094-1.p',unknown),
    [] ).

cnf(12,axiom,
    ( ~ restaurant(skc13,A)
    | ~ in(skc13,B,A)
    | ~ customer(skc13,B)
    | ssSkC0
    | drink(skc13,skf27(C)) ),
    file('NLP094-1.p',unknown),
    [] ).

cnf(13,axiom,
    ( ~ restaurant(skc13,A)
    | ~ in(skc13,B,A)
    | ~ customer(skc13,B)
    | ssSkC0
    | nonreflexive(skc13,skf27(C)) ),
    file('NLP094-1.p',unknown),
    [] ).

cnf(14,axiom,
    ( ~ restaurant(skc13,A)
    | ~ in(skc13,B,A)
    | ~ customer(skc13,B)
    | ssSkC0
    | past(skc13,skf27(C)) ),
    file('NLP094-1.p',unknown),
    [] ).

cnf(15,axiom,
    ( ~ restaurant(skc13,A)
    | ~ in(skc13,B,A)
    | ~ customer(skc13,B)
    | ssSkC0
    | event(skc13,skf27(C)) ),
    file('NLP094-1.p',unknown),
    [] ).

cnf(16,axiom,
    ( ~ restaurant(skc13,A)
    | ~ in(skc13,B,A)
    | ~ customer(skc13,B)
    | ssSkC0
    | coffee(skc13,skf28(C)) ),
    file('NLP094-1.p',unknown),
    [] ).

cnf(17,axiom,
    ( ~ restaurant(skc2,A)
    | ~ in(skc2,B,A)
    | ~ customer(skc2,B)
    | ~ ssSkC0
    | event(skc2,skf12(C)) ),
    file('NLP094-1.p',unknown),
    [] ).

cnf(18,axiom,
    ( ~ restaurant(skc2,A)
    | ~ in(skc2,B,A)
    | ~ customer(skc2,B)
    | ~ ssSkC0
    | past(skc2,skf12(C)) ),
    file('NLP094-1.p',unknown),
    [] ).

cnf(19,axiom,
    ( ~ restaurant(skc2,A)
    | ~ in(skc2,B,A)
    | ~ customer(skc2,B)
    | ~ ssSkC0
    | nonreflexive(skc2,skf12(C)) ),
    file('NLP094-1.p',unknown),
    [] ).

cnf(20,axiom,
    ( ~ restaurant(skc2,A)
    | ~ in(skc2,B,A)
    | ~ customer(skc2,B)
    | ~ ssSkC0
    | see(skc2,skf12(C)) ),
    file('NLP094-1.p',unknown),
    [] ).

cnf(21,axiom,
    ( ~ restaurant(skc2,A)
    | ~ in(skc2,B,A)
    | ~ customer(skc2,B)
    | ~ ssSkC0
    | coffee(skc2,skf14(C)) ),
    file('NLP094-1.p',unknown),
    [] ).

cnf(22,axiom,
    ( ~ restaurant(skc2,A)
    | ~ in(skc2,B,A)
    | ~ customer(skc2,B)
    | ~ ssSkC0
    | drink(skc2,skf13(C)) ),
    file('NLP094-1.p',unknown),
    [] ).

cnf(23,axiom,
    ( ~ restaurant(skc2,A)
    | ~ in(skc2,B,A)
    | ~ customer(skc2,B)
    | ~ ssSkC0
    | nonreflexive(skc2,skf13(C)) ),
    file('NLP094-1.p',unknown),
    [] ).

cnf(24,axiom,
    ( ~ restaurant(skc2,A)
    | ~ in(skc2,B,A)
    | ~ customer(skc2,B)
    | ~ ssSkC0
    | past(skc2,skf13(C)) ),
    file('NLP094-1.p',unknown),
    [] ).

cnf(25,axiom,
    ( ~ restaurant(skc2,A)
    | ~ in(skc2,B,A)
    | ~ customer(skc2,B)
    | ~ ssSkC0
    | event(skc2,skf13(C)) ),
    file('NLP094-1.p',unknown),
    [] ).

cnf(26,axiom,
    ( ~ restaurant(skc2,A)
    | ~ in(skc2,B,A)
    | ~ customer(skc2,B)
    | ~ ssSkC0
    | human_person(skc2,skf15(C)) ),
    file('NLP094-1.p',unknown),
    [] ).

cnf(27,axiom,
    ( ~ restaurant(skc13,A)
    | ~ in(skc13,B,A)
    | ~ customer(skc13,B)
    | ssSkC0
    | agent(skc13,skf26(B),B) ),
    file('NLP094-1.p',unknown),
    [] ).

cnf(28,axiom,
    ( ~ restaurant(skc2,A)
    | ~ in(skc2,B,A)
    | ~ customer(skc2,B)
    | ~ ssSkC0
    | agent(skc2,skf12(B),B) ),
    file('NLP094-1.p',unknown),
    [] ).

cnf(29,axiom,
    ( ~ restaurant(skc13,A)
    | ~ in(skc13,B,A)
    | ~ customer(skc13,B)
    | ssSkC0
    | patient(skc13,skf26(C),skf29(C)) ),
    file('NLP094-1.p',unknown),
    [] ).

cnf(30,axiom,
    ( ~ restaurant(skc13,A)
    | ~ in(skc13,B,A)
    | ~ customer(skc13,B)
    | ssSkC0
    | agent(skc13,skf27(C),skf29(C)) ),
    file('NLP094-1.p',unknown),
    [] ).

cnf(31,axiom,
    ( ~ restaurant(skc13,A)
    | ~ in(skc13,B,A)
    | ~ customer(skc13,B)
    | ssSkC0
    | patient(skc13,skf27(C),skf28(C)) ),
    file('NLP094-1.p',unknown),
    [] ).

cnf(32,axiom,
    ( ~ restaurant(skc2,A)
    | ~ in(skc2,B,A)
    | ~ customer(skc2,B)
    | ~ ssSkC0
    | agent(skc2,skf13(C),skf15(C)) ),
    file('NLP094-1.p',unknown),
    [] ).

cnf(33,axiom,
    ( ~ restaurant(skc2,A)
    | ~ in(skc2,B,A)
    | ~ customer(skc2,B)
    | ~ ssSkC0
    | patient(skc2,skf12(C),skf15(C)) ),
    file('NLP094-1.p',unknown),
    [] ).

cnf(34,axiom,
    ( ~ restaurant(skc2,A)
    | ~ in(skc2,B,A)
    | ~ customer(skc2,B)
    | ~ ssSkC0
    | patient(skc2,skf13(C),skf14(C)) ),
    file('NLP094-1.p',unknown),
    [] ).

cnf(35,axiom,
    ( ~ event(A,B)
    | ~ agent(A,B,skf39(A))
    | ~ past(A,B)
    | ~ nonreflexive(A,B)
    | ~ see(A,B)
    | ~ patient(A,C,D)
    | ~ coffee(A,D)
    | ~ drink(A,C)
    | ~ nonreflexive(A,C)
    | ~ past(A,C)
    | ~ event(A,C)
    | ~ human_person(A,E)
    | ~ agent(A,C,E)
    | ~ patient(A,B,E)
    | ~ actual_world(A)
    | ssSkC0 ),
    file('NLP094-1.p',unknown),
    [] ).

cnf(36,axiom,
    ( ~ event(A,B)
    | ~ agent(A,B,skf25(A))
    | ~ past(A,B)
    | ~ nonreflexive(A,B)
    | ~ see(A,B)
    | ~ patient(A,B,C)
    | ~ agent(A,D,C)
    | ~ human_person(A,C)
    | ~ drink(A,D)
    | ~ nonreflexive(A,D)
    | ~ past(A,D)
    | ~ event(A,D)
    | ~ coffee(A,E)
    | ~ patient(A,D,E)
    | ~ actual_world(A)
    | ~ ssSkC0 ),
    file('NLP094-1.p',unknown),
    [] ).

cnf(45,axiom,
    actual_world(skc13),
    file('NLP094-1.p',unknown),
    [] ).

cnf(46,axiom,
    actual_world(skc2),
    file('NLP094-1.p',unknown),
    [] ).

cnf(47,plain,
    ( ssSkC0
    | in(skc13,skf39(skc13),skf34(skc13)) ),
    inference(hyper,[status(thm)],[45,5]),
    [iquote('hyper,45,5')] ).

cnf(48,plain,
    ( ssSkC0
    | restaurant(skc13,skf34(skc13)) ),
    inference(hyper,[status(thm)],[45,2]),
    [iquote('hyper,45,2')] ).

cnf(49,plain,
    ( ssSkC0
    | customer(skc13,skf39(skc13)) ),
    inference(hyper,[status(thm)],[45,1]),
    [iquote('hyper,45,1')] ).

cnf(53,plain,
    ( ssSkC0
    | patient(skc13,skf27(A),skf28(A)) ),
    inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(hyper,[status(thm)],[47,31,48,49])])])]),
    [iquote('hyper,47,31,48,49,factor_simp,factor_simp,factor_simp')] ).

cnf(54,plain,
    ( ssSkC0
    | agent(skc13,skf27(A),skf29(A)) ),
    inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(hyper,[status(thm)],[47,30,48,49])])])]),
    [iquote('hyper,47,30,48,49,factor_simp,factor_simp,factor_simp')] ).

cnf(55,plain,
    ( ssSkC0
    | patient(skc13,skf26(A),skf29(A)) ),
    inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(hyper,[status(thm)],[47,29,48,49])])])]),
    [iquote('hyper,47,29,48,49,factor_simp,factor_simp,factor_simp')] ).

cnf(56,plain,
    ( ssSkC0
    | agent(skc13,skf26(skf39(skc13)),skf39(skc13)) ),
    inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(hyper,[status(thm)],[47,27,48,49])])])]),
    [iquote('hyper,47,27,48,49,factor_simp,factor_simp,factor_simp')] ).

cnf(57,plain,
    ( ssSkC0
    | coffee(skc13,skf28(A)) ),
    inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(hyper,[status(thm)],[47,16,48,49])])])]),
    [iquote('hyper,47,16,48,49,factor_simp,factor_simp,factor_simp')] ).

cnf(58,plain,
    ( ssSkC0
    | event(skc13,skf27(A)) ),
    inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(hyper,[status(thm)],[47,15,48,49])])])]),
    [iquote('hyper,47,15,48,49,factor_simp,factor_simp,factor_simp')] ).

cnf(59,plain,
    ( ssSkC0
    | past(skc13,skf27(A)) ),
    inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(hyper,[status(thm)],[47,14,48,49])])])]),
    [iquote('hyper,47,14,48,49,factor_simp,factor_simp,factor_simp')] ).

cnf(60,plain,
    ( ssSkC0
    | nonreflexive(skc13,skf27(A)) ),
    inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(hyper,[status(thm)],[47,13,48,49])])])]),
    [iquote('hyper,47,13,48,49,factor_simp,factor_simp,factor_simp')] ).

cnf(61,plain,
    ( ssSkC0
    | drink(skc13,skf27(A)) ),
    inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(hyper,[status(thm)],[47,12,48,49])])])]),
    [iquote('hyper,47,12,48,49,factor_simp,factor_simp,factor_simp')] ).

cnf(62,plain,
    ( ssSkC0
    | human_person(skc13,skf29(A)) ),
    inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(hyper,[status(thm)],[47,11,48,49])])])]),
    [iquote('hyper,47,11,48,49,factor_simp,factor_simp,factor_simp')] ).

cnf(63,plain,
    ( ssSkC0
    | see(skc13,skf26(A)) ),
    inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(hyper,[status(thm)],[47,10,48,49])])])]),
    [iquote('hyper,47,10,48,49,factor_simp,factor_simp,factor_simp')] ).

cnf(64,plain,
    ( ssSkC0
    | nonreflexive(skc13,skf26(A)) ),
    inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(hyper,[status(thm)],[47,9,48,49])])])]),
    [iquote('hyper,47,9,48,49,factor_simp,factor_simp,factor_simp')] ).

cnf(65,plain,
    ( ssSkC0
    | past(skc13,skf26(A)) ),
    inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(hyper,[status(thm)],[47,8,48,49])])])]),
    [iquote('hyper,47,8,48,49,factor_simp,factor_simp,factor_simp')] ).

cnf(66,plain,
    ( ssSkC0
    | event(skc13,skf26(A)) ),
    inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(hyper,[status(thm)],[47,7,48,49])])])]),
    [iquote('hyper,47,7,48,49,factor_simp,factor_simp,factor_simp')] ).

cnf(67,plain,
    ssSkC0,
    inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(hyper,[status(thm)],[56,35,66,65,64,63,53,57,61,60,59,58,62,54,55,45])])])])])])])])])])])])])])]),
    [iquote('hyper,56,35,66,65,64,63,53,57,61,60,59,58,62,54,55,45,factor_simp,factor_simp,factor_simp,factor_simp,factor_simp,factor_simp,factor_simp,factor_simp,factor_simp,factor_simp,factor_simp,factor_simp,factor_simp,factor_simp')] ).

cnf(68,plain,
    in(skc2,skf25(skc2),skf20(skc2)),
    inference(hyper,[status(thm)],[67,6,46]),
    [iquote('hyper,67,6,46')] ).

cnf(70,plain,
    restaurant(skc2,skf20(skc2)),
    inference(hyper,[status(thm)],[67,4,46]),
    [iquote('hyper,67,4,46')] ).

cnf(72,plain,
    customer(skc2,skf25(skc2)),
    inference(hyper,[status(thm)],[67,3,46]),
    [iquote('hyper,67,3,46')] ).

cnf(74,plain,
    patient(skc2,skf13(A),skf14(A)),
    inference(hyper,[status(thm)],[72,34,70,68,67]),
    [iquote('hyper,72,34,70,68,67')] ).

cnf(75,plain,
    patient(skc2,skf12(A),skf15(A)),
    inference(hyper,[status(thm)],[72,33,70,68,67]),
    [iquote('hyper,72,33,70,68,67')] ).

cnf(76,plain,
    agent(skc2,skf13(A),skf15(A)),
    inference(hyper,[status(thm)],[72,32,70,68,67]),
    [iquote('hyper,72,32,70,68,67')] ).

cnf(77,plain,
    agent(skc2,skf12(skf25(skc2)),skf25(skc2)),
    inference(hyper,[status(thm)],[72,28,70,68,67]),
    [iquote('hyper,72,28,70,68,67')] ).

cnf(78,plain,
    human_person(skc2,skf15(A)),
    inference(hyper,[status(thm)],[72,26,70,68,67]),
    [iquote('hyper,72,26,70,68,67')] ).

cnf(79,plain,
    event(skc2,skf13(A)),
    inference(hyper,[status(thm)],[72,25,70,68,67]),
    [iquote('hyper,72,25,70,68,67')] ).

cnf(80,plain,
    past(skc2,skf13(A)),
    inference(hyper,[status(thm)],[72,24,70,68,67]),
    [iquote('hyper,72,24,70,68,67')] ).

cnf(81,plain,
    nonreflexive(skc2,skf13(A)),
    inference(hyper,[status(thm)],[72,23,70,68,67]),
    [iquote('hyper,72,23,70,68,67')] ).

cnf(82,plain,
    drink(skc2,skf13(A)),
    inference(hyper,[status(thm)],[72,22,70,68,67]),
    [iquote('hyper,72,22,70,68,67')] ).

cnf(83,plain,
    coffee(skc2,skf14(A)),
    inference(hyper,[status(thm)],[72,21,70,68,67]),
    [iquote('hyper,72,21,70,68,67')] ).

cnf(84,plain,
    see(skc2,skf12(A)),
    inference(hyper,[status(thm)],[72,20,70,68,67]),
    [iquote('hyper,72,20,70,68,67')] ).

cnf(85,plain,
    nonreflexive(skc2,skf12(A)),
    inference(hyper,[status(thm)],[72,19,70,68,67]),
    [iquote('hyper,72,19,70,68,67')] ).

cnf(86,plain,
    past(skc2,skf12(A)),
    inference(hyper,[status(thm)],[72,18,70,68,67]),
    [iquote('hyper,72,18,70,68,67')] ).

cnf(87,plain,
    event(skc2,skf12(A)),
    inference(hyper,[status(thm)],[72,17,70,68,67]),
    [iquote('hyper,72,17,70,68,67')] ).

cnf(88,plain,
    $false,
    inference(hyper,[status(thm)],[77,36,87,86,85,84,75,76,78,82,81,80,79,83,74,46,67]),
    [iquote('hyper,77,36,87,86,85,84,75,76,78,82,81,80,79,83,74,46,67')] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.08/0.12  % Problem  : NLP094-1 : TPTP v8.1.0. Released v2.4.0.
% 0.08/0.12  % Command  : otter-tptp-script %s
% 0.12/0.33  % Computer : n019.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 08:52:07 EDT 2022
% 0.12/0.33  % CPUTime  : 
% 1.77/2.00  ----- Otter 3.3f, August 2004 -----
% 1.77/2.00  The process was started by sandbox2 on n019.cluster.edu,
% 1.77/2.00  Wed Jul 27 08:52:07 2022
% 1.77/2.00  The command was "./otter".  The process ID is 26913.
% 1.77/2.00  
% 1.77/2.00  set(prolog_style_variables).
% 1.77/2.00  set(auto).
% 1.77/2.00     dependent: set(auto1).
% 1.77/2.00     dependent: set(process_input).
% 1.77/2.00     dependent: clear(print_kept).
% 1.77/2.00     dependent: clear(print_new_demod).
% 1.77/2.00     dependent: clear(print_back_demod).
% 1.77/2.00     dependent: clear(print_back_sub).
% 1.77/2.00     dependent: set(control_memory).
% 1.77/2.00     dependent: assign(max_mem, 12000).
% 1.77/2.00     dependent: assign(pick_given_ratio, 4).
% 1.77/2.00     dependent: assign(stats_level, 1).
% 1.77/2.00     dependent: assign(max_seconds, 10800).
% 1.77/2.00  clear(print_given).
% 1.77/2.00  
% 1.77/2.00  list(usable).
% 1.77/2.00  0 [] actual_world(skc13).
% 1.77/2.00  0 [] actual_world(skc2).
% 1.77/2.00  0 [] -actual_world(U)|ssSkC0|customer(U,skf39(U)).
% 1.77/2.00  0 [] -actual_world(U)|ssSkC0|restaurant(U,skf34(U)).
% 1.77/2.00  0 [] -actual_world(U)| -ssSkC0|customer(U,skf25(U)).
% 1.77/2.00  0 [] -actual_world(U)| -ssSkC0|restaurant(U,skf20(U)).
% 1.77/2.00  0 [] -actual_world(U)|ssSkC0|in(U,skf39(U),skf34(U)).
% 1.77/2.00  0 [] -actual_world(U)| -ssSkC0|in(U,skf25(U),skf20(U)).
% 1.77/2.00  0 [] -restaurant(skc13,U)| -in(skc13,V,U)| -customer(skc13,V)|ssSkC0|event(skc13,skf26(W)).
% 1.77/2.00  0 [] -restaurant(skc13,U)| -in(skc13,V,U)| -customer(skc13,V)|ssSkC0|past(skc13,skf26(W)).
% 1.77/2.00  0 [] -restaurant(skc13,U)| -in(skc13,V,U)| -customer(skc13,V)|ssSkC0|nonreflexive(skc13,skf26(W)).
% 1.77/2.00  0 [] -restaurant(skc13,U)| -in(skc13,V,U)| -customer(skc13,V)|ssSkC0|see(skc13,skf26(W)).
% 1.77/2.00  0 [] -restaurant(skc13,U)| -in(skc13,V,U)| -customer(skc13,V)|ssSkC0|human_person(skc13,skf29(W)).
% 1.77/2.00  0 [] -restaurant(skc13,U)| -in(skc13,V,U)| -customer(skc13,V)|ssSkC0|drink(skc13,skf27(W)).
% 1.77/2.00  0 [] -restaurant(skc13,U)| -in(skc13,V,U)| -customer(skc13,V)|ssSkC0|nonreflexive(skc13,skf27(W)).
% 1.77/2.00  0 [] -restaurant(skc13,U)| -in(skc13,V,U)| -customer(skc13,V)|ssSkC0|past(skc13,skf27(W)).
% 1.77/2.00  0 [] -restaurant(skc13,U)| -in(skc13,V,U)| -customer(skc13,V)|ssSkC0|event(skc13,skf27(W)).
% 1.77/2.00  0 [] -restaurant(skc13,U)| -in(skc13,V,U)| -customer(skc13,V)|ssSkC0|coffee(skc13,skf28(W)).
% 1.77/2.00  0 [] -restaurant(skc2,U)| -in(skc2,V,U)| -customer(skc2,V)| -ssSkC0|event(skc2,skf12(W)).
% 1.77/2.00  0 [] -restaurant(skc2,U)| -in(skc2,V,U)| -customer(skc2,V)| -ssSkC0|past(skc2,skf12(W)).
% 1.77/2.00  0 [] -restaurant(skc2,U)| -in(skc2,V,U)| -customer(skc2,V)| -ssSkC0|nonreflexive(skc2,skf12(W)).
% 1.77/2.00  0 [] -restaurant(skc2,U)| -in(skc2,V,U)| -customer(skc2,V)| -ssSkC0|see(skc2,skf12(W)).
% 1.77/2.00  0 [] -restaurant(skc2,U)| -in(skc2,V,U)| -customer(skc2,V)| -ssSkC0|coffee(skc2,skf14(W)).
% 1.77/2.00  0 [] -restaurant(skc2,U)| -in(skc2,V,U)| -customer(skc2,V)| -ssSkC0|drink(skc2,skf13(W)).
% 1.77/2.00  0 [] -restaurant(skc2,U)| -in(skc2,V,U)| -customer(skc2,V)| -ssSkC0|nonreflexive(skc2,skf13(W)).
% 1.77/2.00  0 [] -restaurant(skc2,U)| -in(skc2,V,U)| -customer(skc2,V)| -ssSkC0|past(skc2,skf13(W)).
% 1.77/2.00  0 [] -restaurant(skc2,U)| -in(skc2,V,U)| -customer(skc2,V)| -ssSkC0|event(skc2,skf13(W)).
% 1.77/2.00  0 [] -restaurant(skc2,U)| -in(skc2,V,U)| -customer(skc2,V)| -ssSkC0|human_person(skc2,skf15(W)).
% 1.77/2.00  0 [] -restaurant(skc13,U)| -in(skc13,V,U)| -customer(skc13,V)|ssSkC0|agent(skc13,skf26(V),V).
% 1.77/2.00  0 [] -restaurant(skc2,U)| -in(skc2,V,U)| -customer(skc2,V)| -ssSkC0|agent(skc2,skf12(V),V).
% 1.77/2.00  0 [] -restaurant(skc13,U)| -in(skc13,V,U)| -customer(skc13,V)|ssSkC0|patient(skc13,skf26(W),skf29(W)).
% 1.77/2.00  0 [] -restaurant(skc13,U)| -in(skc13,V,U)| -customer(skc13,V)|ssSkC0|agent(skc13,skf27(W),skf29(W)).
% 1.77/2.00  0 [] -restaurant(skc13,U)| -in(skc13,V,U)| -customer(skc13,V)|ssSkC0|patient(skc13,skf27(W),skf28(W)).
% 1.77/2.00  0 [] -restaurant(skc2,U)| -in(skc2,V,U)| -customer(skc2,V)| -ssSkC0|agent(skc2,skf13(W),skf15(W)).
% 1.77/2.00  0 [] -restaurant(skc2,U)| -in(skc2,V,U)| -customer(skc2,V)| -ssSkC0|patient(skc2,skf12(W),skf15(W)).
% 1.77/2.00  0 [] -restaurant(skc2,U)| -in(skc2,V,U)| -customer(skc2,V)| -ssSkC0|patient(skc2,skf13(W),skf14(W)).
% 1.77/2.00  0 [] -event(U,V)| -agent(U,V,skf39(U))| -past(U,V)| -nonreflexive(U,V)| -see(U,V)| -patient(U,W,X)| -coffee(U,X)| -drink(U,W)| -nonreflexive(U,W)| -past(U,W)| -event(U,W)| -human_person(U,Y)| -agent(U,W,Y)| -patient(U,V,Y)| -actual_world(U)|ssSkC0.
% 1.77/2.00  0 [] -event(U,V)| -agent(U,V,skf25(U))| -past(U,V)| -nonreflexive(U,V)| -see(U,V)| -patient(U,V,W)| -agent(U,X,W)| -human_person(U,W)| -drink(U,X)| -nonreflexive(U,X)| -past(U,X)| -event(U,X)| -coffee(U,Y)| -patient(U,X,Y)| -actual_world(U)| -ssSkC0.
% 1.77/2.00  end_of_list.
% 1.77/2.00  
% 1.77/2.00  SCAN INPUT: prop=0, horn=0, equality=0, symmetry=0, max_lits=16.
% 1.77/2.00  
% 1.77/2.00  This is a non-Horn set without equality.  The strategy will
% 1.77/2.00  be ordered hyper_res, unit deletion, and factoring, with
% 1.77/2.00  satellites in sos and with nuclei in usable.
% 1.77/2.00  
% 1.77/2.00     dependent: set(hyper_res).
% 1.77/2.00     dependent: set(factor).
% 1.77/2.00     dependent: set(unit_deletion).
% 1.77/2.00  
% 1.77/2.00  ------------> process usable:
% 1.77/2.00  ** KEPT (pick-wt=7): 1 [] -actual_world(A)|ssSkC0|customer(A,skf39(A)).
% 1.77/2.00  ** KEPT (pick-wt=7): 2 [] -actual_world(A)|ssSkC0|restaurant(A,skf34(A)).
% 1.77/2.00  ** KEPT (pick-wt=7): 3 [] -actual_world(A)| -ssSkC0|customer(A,skf25(A)).
% 1.77/2.00  ** KEPT (pick-wt=7): 4 [] -actual_world(A)| -ssSkC0|restaurant(A,skf20(A)).
% 1.77/2.00  ** KEPT (pick-wt=9): 5 [] -actual_world(A)|ssSkC0|in(A,skf39(A),skf34(A)).
% 1.77/2.00  ** KEPT (pick-wt=9): 6 [] -actual_world(A)| -ssSkC0|in(A,skf25(A),skf20(A)).
% 1.77/2.00  ** KEPT (pick-wt=15): 7 [] -restaurant(skc13,A)| -in(skc13,B,A)| -customer(skc13,B)|ssSkC0|event(skc13,skf26(C)).
% 1.77/2.00  ** KEPT (pick-wt=15): 8 [] -restaurant(skc13,A)| -in(skc13,B,A)| -customer(skc13,B)|ssSkC0|past(skc13,skf26(C)).
% 1.77/2.00  ** KEPT (pick-wt=15): 9 [] -restaurant(skc13,A)| -in(skc13,B,A)| -customer(skc13,B)|ssSkC0|nonreflexive(skc13,skf26(C)).
% 1.77/2.00  ** KEPT (pick-wt=15): 10 [] -restaurant(skc13,A)| -in(skc13,B,A)| -customer(skc13,B)|ssSkC0|see(skc13,skf26(C)).
% 1.77/2.00  ** KEPT (pick-wt=15): 11 [] -restaurant(skc13,A)| -in(skc13,B,A)| -customer(skc13,B)|ssSkC0|human_person(skc13,skf29(C)).
% 1.77/2.00  ** KEPT (pick-wt=15): 12 [] -restaurant(skc13,A)| -in(skc13,B,A)| -customer(skc13,B)|ssSkC0|drink(skc13,skf27(C)).
% 1.77/2.00  ** KEPT (pick-wt=15): 13 [] -restaurant(skc13,A)| -in(skc13,B,A)| -customer(skc13,B)|ssSkC0|nonreflexive(skc13,skf27(C)).
% 1.77/2.00  ** KEPT (pick-wt=15): 14 [] -restaurant(skc13,A)| -in(skc13,B,A)| -customer(skc13,B)|ssSkC0|past(skc13,skf27(C)).
% 1.77/2.00  ** KEPT (pick-wt=15): 15 [] -restaurant(skc13,A)| -in(skc13,B,A)| -customer(skc13,B)|ssSkC0|event(skc13,skf27(C)).
% 1.77/2.00  ** KEPT (pick-wt=15): 16 [] -restaurant(skc13,A)| -in(skc13,B,A)| -customer(skc13,B)|ssSkC0|coffee(skc13,skf28(C)).
% 1.77/2.00  ** KEPT (pick-wt=15): 17 [] -restaurant(skc2,A)| -in(skc2,B,A)| -customer(skc2,B)| -ssSkC0|event(skc2,skf12(C)).
% 1.77/2.00  ** KEPT (pick-wt=15): 18 [] -restaurant(skc2,A)| -in(skc2,B,A)| -customer(skc2,B)| -ssSkC0|past(skc2,skf12(C)).
% 1.77/2.00  ** KEPT (pick-wt=15): 19 [] -restaurant(skc2,A)| -in(skc2,B,A)| -customer(skc2,B)| -ssSkC0|nonreflexive(skc2,skf12(C)).
% 1.77/2.00  ** KEPT (pick-wt=15): 20 [] -restaurant(skc2,A)| -in(skc2,B,A)| -customer(skc2,B)| -ssSkC0|see(skc2,skf12(C)).
% 1.77/2.00  ** KEPT (pick-wt=15): 21 [] -restaurant(skc2,A)| -in(skc2,B,A)| -customer(skc2,B)| -ssSkC0|coffee(skc2,skf14(C)).
% 1.77/2.00  ** KEPT (pick-wt=15): 22 [] -restaurant(skc2,A)| -in(skc2,B,A)| -customer(skc2,B)| -ssSkC0|drink(skc2,skf13(C)).
% 1.77/2.00  ** KEPT (pick-wt=15): 23 [] -restaurant(skc2,A)| -in(skc2,B,A)| -customer(skc2,B)| -ssSkC0|nonreflexive(skc2,skf13(C)).
% 1.77/2.00  ** KEPT (pick-wt=15): 24 [] -restaurant(skc2,A)| -in(skc2,B,A)| -customer(skc2,B)| -ssSkC0|past(skc2,skf13(C)).
% 1.77/2.00  ** KEPT (pick-wt=15): 25 [] -restaurant(skc2,A)| -in(skc2,B,A)| -customer(skc2,B)| -ssSkC0|event(skc2,skf13(C)).
% 1.77/2.00  ** KEPT (pick-wt=15): 26 [] -restaurant(skc2,A)| -in(skc2,B,A)| -customer(skc2,B)| -ssSkC0|human_person(skc2,skf15(C)).
% 1.77/2.00  ** KEPT (pick-wt=16): 27 [] -restaurant(skc13,A)| -in(skc13,B,A)| -customer(skc13,B)|ssSkC0|agent(skc13,skf26(B),B).
% 1.77/2.00  ** KEPT (pick-wt=16): 28 [] -restaurant(skc2,A)| -in(skc2,B,A)| -customer(skc2,B)| -ssSkC0|agent(skc2,skf12(B),B).
% 1.77/2.00  ** KEPT (pick-wt=17): 29 [] -restaurant(skc13,A)| -in(skc13,B,A)| -customer(skc13,B)|ssSkC0|patient(skc13,skf26(C),skf29(C)).
% 1.77/2.00  ** KEPT (pick-wt=17): 30 [] -restaurant(skc13,A)| -in(skc13,B,A)| -customer(skc13,B)|ssSkC0|agent(skc13,skf27(C),skf29(C)).
% 1.77/2.00  ** KEPT (pick-wt=17): 31 [] -restaurant(skc13,A)| -in(skc13,B,A)| -customer(skc13,B)|ssSkC0|patient(skc13,skf27(C),skf28(C)).
% 1.77/2.00  ** KEPT (pick-wt=17): 32 [] -restaurant(skc2,A)| -in(skc2,B,A)| -customer(skc2,B)| -ssSkC0|agent(skc2,skf13(C),skf15(C)).
% 1.77/2.00  ** KEPT (pick-wt=17): 33 [] -restaurant(skc2,A)| -in(skc2,B,A)| -customer(skc2,B)| -ssSkC0|patient(skc2,skf12(C),skf15(C)).
% 1.77/2.00  ** KEPT (pick-wt=17): 34 [] -restaurant(skc2,A)| -in(skc2,B,A)| -customer(skc2,B)| -ssSkC0|patient(skc2,skf13(C),skf14(C)).
% 1.77/2.00  ** KEPT (pick-wt=50): 35 [] -event(A,B)| -agent(A,B,skf39(A))| -past(A,B)| -nonreflexive(A,B)| -see(A,B)| -patient(A,C,D)| -coffee(A,D)| -drink(A,C)| -nonreflexive(A,C)| -past(A,C)| -event(A,C)| -human_person(A,E)| -agent(A,C,E)| -patient(A,B,E)| -actual_world(A)|ssSkC0.
% 1.77/2.00  ** KEPT (pick-wt=50): 36 [] -event(A,B)| -agent(A,B,skf25(A))| -past(A,B)| -nonreflexive(A,B)| -see(A,B)| -patient(A,B,C)| -agent(A,D,C)| -human_person(A,C)| -drink(A,D)| -nonreflexive(A,D)| -past(A,D)| -event(A,D)| -coffee(A,E)| -patient(A,D,E)| -actual_world(A)| -ssSkC0.
% 1.77/2.00  
% 1.77/2.00  ------------> process sos:
% 1.77/2.00  ** KEPT (pick-wt=2): 45 [] actual_world(skc13).
% 1.77/2.00  ** KEPT (pick-wt=2): 46 [] actual_world(skc2).
% 1.77/2.00  
% 1.77/2.00  ======= end of input processing =======
% 1.77/2.00  
% 1.77/2.00  =========== start of search ===========
% 1.77/2.00  
% 1.77/2.00  -------- PROOF -------- 
% 1.77/2.00  
% 1.77/2.00  -----> EMPTY CLAUSE at   0.01 sec ----> 88 [hyper,77,36,87,86,85,84,75,76,78,82,81,80,79,83,74,46,67] $F.
% 1.77/2.00  
% 1.77/2.00  Length of proof is 35.  Level of proof is 5.
% 1.77/2.00  
% 1.77/2.00  ---------------- PROOF ----------------
% 1.77/2.00  % SZS status Unsatisfiable
% 1.77/2.00  % SZS output start Refutation
% See solution above
% 1.77/2.00  ------------ end of proof -------------
% 1.77/2.00  
% 1.77/2.00  
% 1.77/2.00  Search stopped by max_proofs option.
% 1.77/2.00  
% 1.77/2.00  
% 1.77/2.00  Search stopped by max_proofs option.
% 1.77/2.00  
% 1.77/2.00  ============ end of search ============
% 1.77/2.00  
% 1.77/2.00  -------------- statistics -------------
% 1.77/2.00  clauses given                 43
% 1.77/2.00  clauses generated             60
% 1.77/2.00  clauses kept                  87
% 1.77/2.00  clauses forward subsumed      10
% 1.77/2.00  clauses back subsumed         55
% 1.77/2.00  Kbytes malloced              976
% 1.77/2.00  
% 1.77/2.00  ----------- times (seconds) -----------
% 1.77/2.00  user CPU time          0.01          (0 hr, 0 min, 0 sec)
% 1.77/2.00  system CPU time        0.00          (0 hr, 0 min, 0 sec)
% 1.77/2.00  wall-clock time        1             (0 hr, 0 min, 1 sec)
% 1.77/2.00  
% 1.77/2.00  That finishes the proof of the theorem.
% 1.77/2.00  
% 1.77/2.00  Process 26913 finished Wed Jul 27 08:52:08 2022
% 1.77/2.00  Otter interrupted
% 1.77/2.00  PROOF FOUND
%------------------------------------------------------------------------------