TSTP Solution File: NLP004-1 by Otter---3.3
View Problem
- Process Solution
%------------------------------------------------------------------------------
% File : Otter---3.3
% Problem : NLP004-1 : TPTP v8.1.0. Released v2.4.0.
% Transfm : none
% Format : tptp:raw
% Command : otter-tptp-script %s
% Computer : n024.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 13:06:26 EDT 2022
% Result : Unsatisfiable 39.28s 39.47s
% Output : Refutation 39.28s
% Verified :
% SZS Type : Refutation
% Derivation depth : 5
% Number of leaves : 61
% Syntax : Number of clauses : 85 ( 40 unt; 22 nHn; 84 RR)
% Number of literals : 186 ( 7 equ; 80 neg)
% Maximal clause size : 30 ( 2 avg)
% Maximal term depth : 1 ( 1 avg)
% Number of predicates : 23 ( 21 usr; 2 prp; 0-2 aty)
% Number of functors : 16 ( 16 usr; 16 con; 0-0 aty)
% Number of variables : 17 ( 0 sgn)
% Comments :
%------------------------------------------------------------------------------
cnf(1,axiom,
( ~ ssSkC0
| street(skc20) ),
file('NLP004-1.p',unknown),
[] ).
cnf(2,axiom,
( ~ ssSkC0
| way(skc20) ),
file('NLP004-1.p',unknown),
[] ).
cnf(3,axiom,
( ~ ssSkC0
| old(skc21) ),
file('NLP004-1.p',unknown),
[] ).
cnf(4,axiom,
( ~ ssSkC0
| dirty(skc21) ),
file('NLP004-1.p',unknown),
[] ).
cnf(5,axiom,
( ~ ssSkC0
| white(skc21) ),
file('NLP004-1.p',unknown),
[] ).
cnf(6,axiom,
( ~ ssSkC0
| car(skc21) ),
file('NLP004-1.p',unknown),
[] ).
cnf(7,axiom,
( ~ ssSkC0
| city(skc23) ),
file('NLP004-1.p',unknown),
[] ).
cnf(8,axiom,
( ~ ssSkC0
| seat(skc19) ),
file('NLP004-1.p',unknown),
[] ).
cnf(9,axiom,
( ~ ssSkC0
| furniture(skc19) ),
file('NLP004-1.p',unknown),
[] ).
cnf(10,axiom,
( ~ ssSkC0
| fellow(skc16) ),
file('NLP004-1.p',unknown),
[] ).
cnf(11,axiom,
( ~ ssSkC0
| man(skc16) ),
file('NLP004-1.p',unknown),
[] ).
cnf(12,axiom,
( ~ ssSkC0
| front(skc18) ),
file('NLP004-1.p',unknown),
[] ).
cnf(13,axiom,
( ~ ssSkC0
| furniture(skc18) ),
file('NLP004-1.p',unknown),
[] ).
cnf(14,axiom,
( ~ ssSkC0
| young(skc17) ),
file('NLP004-1.p',unknown),
[] ).
cnf(15,axiom,
( ~ ssSkC0
| man(skc17) ),
file('NLP004-1.p',unknown),
[] ).
cnf(16,axiom,
( ~ ssSkC0
| barrel(skc22,skc21) ),
file('NLP004-1.p',unknown),
[] ).
cnf(17,axiom,
( ~ ssSkC0
| down(skc22,skc20) ),
file('NLP004-1.p',unknown),
[] ).
cnf(18,axiom,
( ~ ssSkC0
| in(skc22,skc23) ),
file('NLP004-1.p',unknown),
[] ).
cnf(19,axiom,
( ~ ssSkC0
| in(skc16,skc19) ),
file('NLP004-1.p',unknown),
[] ).
cnf(20,axiom,
( ~ ssSkC0
| in(skc17,skc18) ),
file('NLP004-1.p',unknown),
[] ).
cnf(21,axiom,
( skc25 != skc24
| ssSkC0 ),
file('NLP004-1.p',unknown),
[] ).
cnf(22,axiom,
( skc17 != skc16
| ~ ssSkC0 ),
file('NLP004-1.p',unknown),
[] ).
cnf(23,axiom,
( ~ street(A)
| ~ way(A)
| ~ lonely(A)
| ~ old(B)
| ~ dirty(B)
| ~ white(B)
| ~ car(B)
| ~ chevy(B)
| ~ event(C)
| ~ barrel(C,B)
| ~ down(C,A)
| ~ in(C,D)
| ~ city(D)
| ~ hollywood(D)
| ~ seat(E)
| ~ furniture(E)
| ~ front(E)
| ~ in(F,E)
| ~ fellow(F)
| ~ man(F)
| ~ young(F)
| ~ in(G,H)
| ~ front(H)
| ~ furniture(H)
| ~ seat(H)
| ~ young(G)
| ~ man(G)
| ~ fellow(G)
| ssSkC0
| G = F ),
file('NLP004-1.p',unknown),
[] ).
cnf(24,axiom,
( ~ chevy(A)
| ~ car(A)
| ~ white(A)
| ~ dirty(A)
| ~ old(A)
| ~ lonely(B)
| ~ way(B)
| ~ street(B)
| ~ event(C)
| ~ barrel(C,A)
| ~ down(C,B)
| ~ in(C,D)
| ~ city(D)
| ~ hollywood(D)
| ~ seat(E)
| ~ furniture(E)
| ~ front(E)
| ~ in(F,E)
| ~ fellow(F)
| ~ man(F)
| ~ young(F)
| ~ in(G,H)
| ~ front(H)
| ~ furniture(H)
| ~ seat(H)
| ~ young(G)
| ~ man(G)
| ~ fellow(G)
| ~ ssSkC0
| G = F ),
file('NLP004-1.p',unknown),
[] ).
cnf(39,axiom,
A = A,
file('NLP004-1.p',unknown),
[] ).
cnf(40,axiom,
hollywood(skc31),
file('NLP004-1.p',unknown),
[] ).
cnf(41,axiom,
event(skc30),
file('NLP004-1.p',unknown),
[] ).
cnf(42,axiom,
street(skc29),
file('NLP004-1.p',unknown),
[] ).
cnf(43,axiom,
old(skc28),
file('NLP004-1.p',unknown),
[] ).
cnf(44,axiom,
front(skc27),
file('NLP004-1.p',unknown),
[] ).
cnf(45,axiom,
seat(skc26),
file('NLP004-1.p',unknown),
[] ).
cnf(46,axiom,
fellow(skc25),
file('NLP004-1.p',unknown),
[] ).
cnf(47,axiom,
young(skc24),
file('NLP004-1.p',unknown),
[] ).
cnf(48,axiom,
hollywood(skc23),
file('NLP004-1.p',unknown),
[] ).
cnf(49,axiom,
event(skc22),
file('NLP004-1.p',unknown),
[] ).
cnf(50,axiom,
chevy(skc21),
file('NLP004-1.p',unknown),
[] ).
cnf(51,axiom,
lonely(skc20),
file('NLP004-1.p',unknown),
[] ).
cnf(52,axiom,
front(skc19),
file('NLP004-1.p',unknown),
[] ).
cnf(53,axiom,
seat(skc18),
file('NLP004-1.p',unknown),
[] ).
cnf(54,axiom,
fellow(skc17),
file('NLP004-1.p',unknown),
[] ).
cnf(55,axiom,
young(skc16),
file('NLP004-1.p',unknown),
[] ).
cnf(56,axiom,
( ssSkC0
| chevy(skc28) ),
file('NLP004-1.p',unknown),
[] ).
cnf(57,axiom,
( ssSkC0
| car(skc28) ),
file('NLP004-1.p',unknown),
[] ).
cnf(58,axiom,
( ssSkC0
| white(skc28) ),
file('NLP004-1.p',unknown),
[] ).
cnf(59,axiom,
( ssSkC0
| dirty(skc28) ),
file('NLP004-1.p',unknown),
[] ).
cnf(60,axiom,
( ssSkC0
| lonely(skc29) ),
file('NLP004-1.p',unknown),
[] ).
cnf(61,axiom,
( ssSkC0
| way(skc29) ),
file('NLP004-1.p',unknown),
[] ).
cnf(62,axiom,
( ssSkC0
| city(skc31) ),
file('NLP004-1.p',unknown),
[] ).
cnf(63,axiom,
( ssSkC0
| seat(skc27) ),
file('NLP004-1.p',unknown),
[] ).
cnf(64,axiom,
( ssSkC0
| furniture(skc27) ),
file('NLP004-1.p',unknown),
[] ).
cnf(65,axiom,
( ssSkC0
| fellow(skc24) ),
file('NLP004-1.p',unknown),
[] ).
cnf(66,axiom,
( ssSkC0
| man(skc24) ),
file('NLP004-1.p',unknown),
[] ).
cnf(67,axiom,
( ssSkC0
| front(skc26) ),
file('NLP004-1.p',unknown),
[] ).
cnf(68,axiom,
( ssSkC0
| furniture(skc26) ),
file('NLP004-1.p',unknown),
[] ).
cnf(69,axiom,
( ssSkC0
| young(skc25) ),
file('NLP004-1.p',unknown),
[] ).
cnf(70,axiom,
( ssSkC0
| man(skc25) ),
file('NLP004-1.p',unknown),
[] ).
cnf(71,axiom,
( ssSkC0
| barrel(skc30,skc28) ),
file('NLP004-1.p',unknown),
[] ).
cnf(72,axiom,
( ssSkC0
| down(skc30,skc29) ),
file('NLP004-1.p',unknown),
[] ).
cnf(73,axiom,
( ssSkC0
| in(skc30,skc31) ),
file('NLP004-1.p',unknown),
[] ).
cnf(74,axiom,
( ssSkC0
| in(skc24,skc27) ),
file('NLP004-1.p',unknown),
[] ).
cnf(75,axiom,
( ssSkC0
| in(skc25,skc26) ),
file('NLP004-1.p',unknown),
[] ).
cnf(326,plain,
( ssSkC0
| skc25 = skc24 ),
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(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)],[75,23,42,61,60,43,59,58,57,56,41,71,72,73,62,40,63,64,44,74,65,66,47,67,68,45,69,70,46])])])])])])])])])])])])])])])])])])])])]),
[iquote('hyper,75,23,42,61,60,43,59,58,57,56,41,71,72,73,62,40,63,64,44,74,65,66,47,67,68,45,69,70,46,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,factor_simp,factor_simp,factor_simp,factor_simp,factor_simp,factor_simp')] ).
cnf(339,plain,
ssSkC0,
inference(factor_simp,[status(thm)],[inference(hyper,[status(thm)],[326,21])]),
[iquote('hyper,326,21,factor_simp')] ).
cnf(340,plain,
in(skc17,skc18),
inference(hyper,[status(thm)],[339,20]),
[iquote('hyper,339,20')] ).
cnf(341,plain,
in(skc16,skc19),
inference(hyper,[status(thm)],[339,19]),
[iquote('hyper,339,19')] ).
cnf(342,plain,
in(skc22,skc23),
inference(hyper,[status(thm)],[339,18]),
[iquote('hyper,339,18')] ).
cnf(343,plain,
down(skc22,skc20),
inference(hyper,[status(thm)],[339,17]),
[iquote('hyper,339,17')] ).
cnf(344,plain,
barrel(skc22,skc21),
inference(hyper,[status(thm)],[339,16]),
[iquote('hyper,339,16')] ).
cnf(345,plain,
man(skc17),
inference(hyper,[status(thm)],[339,15]),
[iquote('hyper,339,15')] ).
cnf(346,plain,
young(skc17),
inference(hyper,[status(thm)],[339,14]),
[iquote('hyper,339,14')] ).
cnf(347,plain,
furniture(skc18),
inference(hyper,[status(thm)],[339,13]),
[iquote('hyper,339,13')] ).
cnf(348,plain,
front(skc18),
inference(hyper,[status(thm)],[339,12]),
[iquote('hyper,339,12')] ).
cnf(349,plain,
man(skc16),
inference(hyper,[status(thm)],[339,11]),
[iquote('hyper,339,11')] ).
cnf(350,plain,
fellow(skc16),
inference(hyper,[status(thm)],[339,10]),
[iquote('hyper,339,10')] ).
cnf(351,plain,
furniture(skc19),
inference(hyper,[status(thm)],[339,9]),
[iquote('hyper,339,9')] ).
cnf(352,plain,
seat(skc19),
inference(hyper,[status(thm)],[339,8]),
[iquote('hyper,339,8')] ).
cnf(353,plain,
city(skc23),
inference(hyper,[status(thm)],[339,7]),
[iquote('hyper,339,7')] ).
cnf(354,plain,
car(skc21),
inference(hyper,[status(thm)],[339,6]),
[iquote('hyper,339,6')] ).
cnf(355,plain,
white(skc21),
inference(hyper,[status(thm)],[339,5]),
[iquote('hyper,339,5')] ).
cnf(356,plain,
dirty(skc21),
inference(hyper,[status(thm)],[339,4]),
[iquote('hyper,339,4')] ).
cnf(357,plain,
old(skc21),
inference(hyper,[status(thm)],[339,3]),
[iquote('hyper,339,3')] ).
cnf(358,plain,
way(skc20),
inference(hyper,[status(thm)],[339,2]),
[iquote('hyper,339,2')] ).
cnf(359,plain,
street(skc20),
inference(hyper,[status(thm)],[339,1]),
[iquote('hyper,339,1')] ).
cnf(760,plain,
skc17 = skc16,
inference(hyper,[status(thm)],[344,24,50,354,355,356,357,51,358,359,49,343,342,353,48,352,351,52,341,350,349,55,340,348,347,53,346,345,54,339]),
[iquote('hyper,344,24,50,354,355,356,357,51,358,359,49,343,342,353,48,352,351,52,341,350,349,55,340,348,347,53,346,345,54,339')] ).
cnf(774,plain,
$false,
inference(unit_del,[status(thm)],[inference(demod,[status(thm),theory(equality)],[inference(back_demod,[status(thm)],[22]),760]),39,339]),
[iquote('back_demod,22,demod,760,unit_del,39,339')] ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.06/0.12 % Problem : NLP004-1 : TPTP v8.1.0. Released v2.4.0.
% 0.06/0.12 % Command : otter-tptp-script %s
% 0.12/0.33 % Computer : n024.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 08:45:40 EDT 2022
% 0.12/0.33 % CPUTime :
% 1.77/2.01 ----- Otter 3.3f, August 2004 -----
% 1.77/2.01 The process was started by sandbox2 on n024.cluster.edu,
% 1.77/2.01 Wed Jul 27 08:45:40 2022
% 1.77/2.01 The command was "./otter". The process ID is 21628.
% 1.77/2.01
% 1.77/2.01 set(prolog_style_variables).
% 1.77/2.01 set(auto).
% 1.77/2.01 dependent: set(auto1).
% 1.77/2.01 dependent: set(process_input).
% 1.77/2.01 dependent: clear(print_kept).
% 1.77/2.01 dependent: clear(print_new_demod).
% 1.77/2.01 dependent: clear(print_back_demod).
% 1.77/2.01 dependent: clear(print_back_sub).
% 1.77/2.01 dependent: set(control_memory).
% 1.77/2.01 dependent: assign(max_mem, 12000).
% 1.77/2.01 dependent: assign(pick_given_ratio, 4).
% 1.77/2.01 dependent: assign(stats_level, 1).
% 1.77/2.01 dependent: assign(max_seconds, 10800).
% 1.77/2.01 clear(print_given).
% 1.77/2.01
% 1.77/2.01 list(usable).
% 1.77/2.01 0 [] A=A.
% 1.77/2.01 0 [] hollywood(skc31).
% 1.77/2.01 0 [] event(skc30).
% 1.77/2.01 0 [] street(skc29).
% 1.77/2.01 0 [] old(skc28).
% 1.77/2.01 0 [] front(skc27).
% 1.77/2.01 0 [] seat(skc26).
% 1.77/2.01 0 [] fellow(skc25).
% 1.77/2.01 0 [] young(skc24).
% 1.77/2.01 0 [] hollywood(skc23).
% 1.77/2.01 0 [] event(skc22).
% 1.77/2.01 0 [] chevy(skc21).
% 1.77/2.01 0 [] lonely(skc20).
% 1.77/2.01 0 [] front(skc19).
% 1.77/2.01 0 [] seat(skc18).
% 1.77/2.01 0 [] fellow(skc17).
% 1.77/2.01 0 [] young(skc16).
% 1.77/2.01 0 [] ssSkC0|chevy(skc28).
% 1.77/2.01 0 [] ssSkC0|car(skc28).
% 1.77/2.01 0 [] ssSkC0|white(skc28).
% 1.77/2.01 0 [] ssSkC0|dirty(skc28).
% 1.77/2.01 0 [] ssSkC0|lonely(skc29).
% 1.77/2.01 0 [] ssSkC0|way(skc29).
% 1.77/2.01 0 [] ssSkC0|city(skc31).
% 1.77/2.01 0 [] ssSkC0|seat(skc27).
% 1.77/2.01 0 [] ssSkC0|furniture(skc27).
% 1.77/2.01 0 [] ssSkC0|fellow(skc24).
% 1.77/2.01 0 [] ssSkC0|man(skc24).
% 1.77/2.01 0 [] ssSkC0|front(skc26).
% 1.77/2.01 0 [] ssSkC0|furniture(skc26).
% 1.77/2.01 0 [] ssSkC0|young(skc25).
% 1.77/2.01 0 [] ssSkC0|man(skc25).
% 1.77/2.01 0 [] -ssSkC0|street(skc20).
% 1.77/2.01 0 [] -ssSkC0|way(skc20).
% 1.77/2.01 0 [] -ssSkC0|old(skc21).
% 1.77/2.01 0 [] -ssSkC0|dirty(skc21).
% 1.77/2.01 0 [] -ssSkC0|white(skc21).
% 1.77/2.01 0 [] -ssSkC0|car(skc21).
% 1.77/2.01 0 [] -ssSkC0|city(skc23).
% 1.77/2.01 0 [] -ssSkC0|seat(skc19).
% 1.77/2.01 0 [] -ssSkC0|furniture(skc19).
% 1.77/2.01 0 [] -ssSkC0|fellow(skc16).
% 1.77/2.01 0 [] -ssSkC0|man(skc16).
% 1.77/2.01 0 [] -ssSkC0|front(skc18).
% 1.77/2.01 0 [] -ssSkC0|furniture(skc18).
% 1.77/2.01 0 [] -ssSkC0|young(skc17).
% 1.77/2.01 0 [] -ssSkC0|man(skc17).
% 1.77/2.01 0 [] ssSkC0|barrel(skc30,skc28).
% 1.77/2.01 0 [] ssSkC0|down(skc30,skc29).
% 1.77/2.01 0 [] ssSkC0|in(skc30,skc31).
% 1.77/2.01 0 [] ssSkC0|in(skc24,skc27).
% 1.77/2.01 0 [] ssSkC0|in(skc25,skc26).
% 1.77/2.01 0 [] -ssSkC0|barrel(skc22,skc21).
% 1.77/2.01 0 [] -ssSkC0|down(skc22,skc20).
% 1.77/2.01 0 [] -ssSkC0|in(skc22,skc23).
% 1.77/2.01 0 [] -ssSkC0|in(skc16,skc19).
% 1.77/2.01 0 [] -ssSkC0|in(skc17,skc18).
% 1.77/2.01 0 [] skc25!=skc24|ssSkC0.
% 1.77/2.01 0 [] skc17!=skc16| -ssSkC0.
% 1.77/2.01 0 [] -street(U)| -way(U)| -lonely(U)| -old(V)| -dirty(V)| -white(V)| -car(V)| -chevy(V)| -event(W)| -barrel(W,V)| -down(W,U)| -in(W,X)| -city(X)| -hollywood(X)| -seat(Y)| -furniture(Y)| -front(Y)| -in(Z,Y)| -fellow(Z)| -man(Z)| -young(Z)| -in(X1,X2)| -front(X2)| -furniture(X2)| -seat(X2)| -young(X1)| -man(X1)| -fellow(X1)|ssSkC0|X1=Z.
% 1.77/2.01 0 [] -chevy(U)| -car(U)| -white(U)| -dirty(U)| -old(U)| -lonely(V)| -way(V)| -street(V)| -event(W)| -barrel(W,U)| -down(W,V)| -in(W,X)| -city(X)| -hollywood(X)| -seat(Y)| -furniture(Y)| -front(Y)| -in(Z,Y)| -fellow(Z)| -man(Z)| -young(Z)| -in(X1,X2)| -front(X2)| -furniture(X2)| -seat(X2)| -young(X1)| -man(X1)| -fellow(X1)| -ssSkC0|X1=Z.
% 1.77/2.01 end_of_list.
% 1.77/2.01
% 1.77/2.01 SCAN INPUT: prop=0, horn=0, equality=1, symmetry=0, max_lits=30.
% 1.77/2.01
% 1.77/2.01 This ia a non-Horn set with equality. The strategy will be
% 1.77/2.01 Knuth-Bendix, ordered hyper_res, factoring, and unit
% 1.77/2.01 deletion, with positive clauses in sos and nonpositive
% 1.77/2.01 clauses in usable.
% 1.77/2.01
% 1.77/2.01 dependent: set(knuth_bendix).
% 1.77/2.01 dependent: set(anl_eq).
% 1.77/2.01 dependent: set(para_from).
% 1.77/2.01 dependent: set(para_into).
% 1.77/2.01 dependent: clear(para_from_right).
% 1.77/2.01 dependent: clear(para_into_right).
% 1.77/2.01 dependent: set(para_from_vars).
% 1.77/2.01 dependent: set(eq_units_both_ways).
% 1.77/2.01 dependent: set(dynamic_demod_all).
% 1.77/2.01 dependent: set(dynamic_demod).
% 1.77/2.01 dependent: set(order_eq).
% 1.77/2.01 dependent: set(back_demod).
% 1.77/2.01 dependent: set(lrpo).
% 1.77/2.01 dependent: set(hyper_res).
% 1.77/2.01 dependent: set(unit_deletion).
% 1.77/2.01 dependent: set(factor).
% 1.77/2.01
% 1.77/2.01 ------------> process usable:
% 1.77/2.01 ** KEPT (pick-wt=3): 1 [] -ssSkC0|street(skc20).
% 1.77/2.01 ** KEPT (pick-wt=3): 2 [] -ssSkC0|way(skc20).
% 1.77/2.01 ** KEPT (pick-wt=3): 3 [] -ssSkC0|old(skc21).
% 1.77/2.01 ** KEPT (pick-wt=3): 4 [] -ssSkC0|dirty(skc21).
% 1.77/2.01 ** KEPT (pick-wt=3): 5 [] -ssSkC0|white(skc21).
% 1.77/2.01 ** KEPT (pick-wt=3): 6 [] -ssSkC0|car(skc21).
% 1.77/2.01 ** KEPT (pick-wt=3): 7 [] -ssSkC0|city(skc23).
% 1.77/2.01 ** KEPT (pick-wt=3): 8 [] -ssSkC0|seat(skc19).
% 1.77/2.01 ** KEPT (pick-wt=3): 9 [] -ssSkC0|furniture(skc19).
% 1.77/2.01 ** KEPT (pick-wt=3): 10 [] -ssSkC0|fellow(skc16).
% 39.28/39.47 ** KEPT (pick-wt=3): 11 [] -ssSkC0|man(skc16).
% 39.28/39.47 ** KEPT (pick-wt=3): 12 [] -ssSkC0|front(skc18).
% 39.28/39.47 ** KEPT (pick-wt=3): 13 [] -ssSkC0|furniture(skc18).
% 39.28/39.47 ** KEPT (pick-wt=3): 14 [] -ssSkC0|young(skc17).
% 39.28/39.47 ** KEPT (pick-wt=3): 15 [] -ssSkC0|man(skc17).
% 39.28/39.47 ** KEPT (pick-wt=4): 16 [] -ssSkC0|barrel(skc22,skc21).
% 39.28/39.47 ** KEPT (pick-wt=4): 17 [] -ssSkC0|down(skc22,skc20).
% 39.28/39.47 ** KEPT (pick-wt=4): 18 [] -ssSkC0|in(skc22,skc23).
% 39.28/39.47 ** KEPT (pick-wt=4): 19 [] -ssSkC0|in(skc16,skc19).
% 39.28/39.47 ** KEPT (pick-wt=4): 20 [] -ssSkC0|in(skc17,skc18).
% 39.28/39.47 ** KEPT (pick-wt=4): 21 [] skc25!=skc24|ssSkC0.
% 39.28/39.47 ** KEPT (pick-wt=4): 22 [] skc17!=skc16| -ssSkC0.
% 39.28/39.47 ** KEPT (pick-wt=65): 23 [] -street(A)| -way(A)| -lonely(A)| -old(B)| -dirty(B)| -white(B)| -car(B)| -chevy(B)| -event(C)| -barrel(C,B)| -down(C,A)| -in(C,D)| -city(D)| -hollywood(D)| -seat(E)| -furniture(E)| -front(E)| -in(F,E)| -fellow(F)| -man(F)| -young(F)| -in(G,H)| -front(H)| -furniture(H)| -seat(H)| -young(G)| -man(G)| -fellow(G)|ssSkC0|G=F.
% 39.28/39.47 ** KEPT (pick-wt=65): 24 [] -chevy(A)| -car(A)| -white(A)| -dirty(A)| -old(A)| -lonely(B)| -way(B)| -street(B)| -event(C)| -barrel(C,A)| -down(C,B)| -in(C,D)| -city(D)| -hollywood(D)| -seat(E)| -furniture(E)| -front(E)| -in(F,E)| -fellow(F)| -man(F)| -young(F)| -in(G,H)| -front(H)| -furniture(H)| -seat(H)| -young(G)| -man(G)| -fellow(G)| -ssSkC0|G=F.
% 39.28/39.47
% 39.28/39.47 ------------> process sos:
% 39.28/39.47 ** KEPT (pick-wt=3): 39 [] A=A.
% 39.28/39.47 ** KEPT (pick-wt=2): 40 [] hollywood(skc31).
% 39.28/39.47 ** KEPT (pick-wt=2): 41 [] event(skc30).
% 39.28/39.47 ** KEPT (pick-wt=2): 42 [] street(skc29).
% 39.28/39.47 ** KEPT (pick-wt=2): 43 [] old(skc28).
% 39.28/39.47 ** KEPT (pick-wt=2): 44 [] front(skc27).
% 39.28/39.47 ** KEPT (pick-wt=2): 45 [] seat(skc26).
% 39.28/39.47 ** KEPT (pick-wt=2): 46 [] fellow(skc25).
% 39.28/39.47 ** KEPT (pick-wt=2): 47 [] young(skc24).
% 39.28/39.47 ** KEPT (pick-wt=2): 48 [] hollywood(skc23).
% 39.28/39.47 ** KEPT (pick-wt=2): 49 [] event(skc22).
% 39.28/39.47 ** KEPT (pick-wt=2): 50 [] chevy(skc21).
% 39.28/39.47 ** KEPT (pick-wt=2): 51 [] lonely(skc20).
% 39.28/39.47 ** KEPT (pick-wt=2): 52 [] front(skc19).
% 39.28/39.47 ** KEPT (pick-wt=2): 53 [] seat(skc18).
% 39.28/39.47 ** KEPT (pick-wt=2): 54 [] fellow(skc17).
% 39.28/39.47 ** KEPT (pick-wt=2): 55 [] young(skc16).
% 39.28/39.47 ** KEPT (pick-wt=3): 56 [] ssSkC0|chevy(skc28).
% 39.28/39.47 ** KEPT (pick-wt=3): 57 [] ssSkC0|car(skc28).
% 39.28/39.47 ** KEPT (pick-wt=3): 58 [] ssSkC0|white(skc28).
% 39.28/39.47 ** KEPT (pick-wt=3): 59 [] ssSkC0|dirty(skc28).
% 39.28/39.47 ** KEPT (pick-wt=3): 60 [] ssSkC0|lonely(skc29).
% 39.28/39.47 ** KEPT (pick-wt=3): 61 [] ssSkC0|way(skc29).
% 39.28/39.47 ** KEPT (pick-wt=3): 62 [] ssSkC0|city(skc31).
% 39.28/39.47 ** KEPT (pick-wt=3): 63 [] ssSkC0|seat(skc27).
% 39.28/39.47 ** KEPT (pick-wt=3): 64 [] ssSkC0|furniture(skc27).
% 39.28/39.47 ** KEPT (pick-wt=3): 65 [] ssSkC0|fellow(skc24).
% 39.28/39.47 ** KEPT (pick-wt=3): 66 [] ssSkC0|man(skc24).
% 39.28/39.47 ** KEPT (pick-wt=3): 67 [] ssSkC0|front(skc26).
% 39.28/39.47 ** KEPT (pick-wt=3): 68 [] ssSkC0|furniture(skc26).
% 39.28/39.47 ** KEPT (pick-wt=3): 69 [] ssSkC0|young(skc25).
% 39.28/39.47 ** KEPT (pick-wt=3): 70 [] ssSkC0|man(skc25).
% 39.28/39.47 ** KEPT (pick-wt=4): 71 [] ssSkC0|barrel(skc30,skc28).
% 39.28/39.47 ** KEPT (pick-wt=4): 72 [] ssSkC0|down(skc30,skc29).
% 39.28/39.47 ** KEPT (pick-wt=4): 73 [] ssSkC0|in(skc30,skc31).
% 39.28/39.47 ** KEPT (pick-wt=4): 74 [] ssSkC0|in(skc24,skc27).
% 39.28/39.47 ** KEPT (pick-wt=4): 75 [] ssSkC0|in(skc25,skc26).
% 39.28/39.47 Following clause subsumed by 39 during input processing: 0 [copy,39,flip.1] A=A.
% 39.28/39.47 39 back subsumes 36.
% 39.28/39.47 39 back subsumes 33.
% 39.28/39.47 39 back subsumes 32.
% 39.28/39.47 39 back subsumes 28.
% 39.28/39.47
% 39.28/39.47 ======= end of input processing =======
% 39.28/39.47
% 39.28/39.47 =========== start of search ===========
% 39.28/39.47
% 39.28/39.47 -- HEY sandbox2, WE HAVE A PROOF!! --
% 39.28/39.47
% 39.28/39.47 -----> EMPTY CLAUSE at 37.47 sec ----> 774 [back_demod,22,demod,760,unit_del,39,339] $F.
% 39.28/39.47
% 39.28/39.47 Length of proof is 23. Level of proof is 4.
% 39.28/39.47
% 39.28/39.47 ---------------- PROOF ----------------
% 39.28/39.47 % SZS status Unsatisfiable
% 39.28/39.47 % SZS output start Refutation
% See solution above
% 39.28/39.47 ------------ end of proof -------------
% 39.28/39.47
% 39.28/39.47
% 39.28/39.47 Search stopped by max_proofs option.
% 39.28/39.47
% 39.28/39.47
% 39.28/39.47 Search stopped by max_proofs option.
% 39.28/39.47
% 39.28/39.47 ============ end of search ============
% 39.28/39.47
% 39.28/39.47 -------------- statistics -------------
% 39.28/39.47 clauses given 64
% 39.28/39.47 clauses generated 9182
% 39.28/39.47 clauses kept 772
% 39.28/39.47 clauses forward subsumed 8018
% 39.28/39.47 clauses back subsumed 530
% 39.28/39.47 Kbytes malloced 2929
% 39.28/39.47
% 39.28/39.47 ----------- times (seconds) -----------
% 39.28/39.47 user CPU time 37.47 (0 hr, 0 min, 37 sec)
% 39.28/39.47 system CPU time 0.00 (0 hr, 0 min, 0 sec)
% 39.28/39.47 wall-clock time 39 (0 hr, 0 min, 39 sec)
% 39.28/39.47
% 39.28/39.47 That finishes the proof of the theorem.
% 39.28/39.47
% 39.28/39.47 Process 21628 finished Wed Jul 27 08:46:19 2022
% 39.28/39.47 Otter interrupted
% 39.28/39.47 PROOF FOUND
%------------------------------------------------------------------------------