%------------------------------------------------------------------------------
% File : Zipperpin---2.1.9999
% Problem : PUZ004-1 : TPTP v9.2.0. Released v1.0.0.
% Transfm : none
% Format : tptp:raw
% Command : python3 /export/starexec/sandbox2/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox2/tmp/tmp.O4zo7K27xZ true
% Computer : n002.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 : Thu Oct 2 04:49:26 PM UTC 2025
% Result : Unsatisfiable 0.57s 0.74s
% Output : Refutation 0.57s
% Verified :
% SZS Type : Refutation
% Derivation depth : 10
% Number of leaves : 11
% Syntax : Number of formulae : 33 ( 15 unt; 0 typ; 0 def)
% Number of atoms : 51 ( 0 equ; 0 cnn)
% Maximal formula atoms : 2 ( 1 avg)
% Number of connectives : 45 ( 27 ~; 18 |; 0 &; 0 @)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 3 ( 2 avg)
% Number of types : 1 ( 0 usr)
% Number of type conns : 0 ( 0 >; 0 *; 0 +; 0 <<)
% Number of symbols : 11 ( 10 usr; 11 con; 0-0 aty)
% Number of variables : 0 ( 0 ^; 0 !; 0 ?; 0 :)
% Comments :
%------------------------------------------------------------------------------
thf(on_one_sheet_type,type,
on_one_sheet: $o ).
thf(filed_type,type,
filed: $o ).
thf(crossed_type,type,
crossed: $o ).
thf(can_be_read_type,type,
can_be_read: $o ).
thf(begins_with_dear_sir_type,type,
begins_with_dear_sir: $o ).
thf(in_black_ink_type,type,
in_black_ink: $o ).
thf(in_third_person_type,type,
in_third_person: $o ).
thf(on_blue_paper_type,type,
on_blue_paper: $o ).
thf(dated_type,type,
dated: $o ).
thf(by_brown_type,type,
by_brown: $o ).
thf(not_crossed_in_black_ink,axiom,
( crossed
| in_black_ink ) ).
thf(zip_derived_cl5,plain,
( crossed
| in_black_ink ),
inference(cnf,[status(esa)],[not_crossed_in_black_ink]) ).
thf(on_one_sheet_if_crossed,axiom,
( on_one_sheet
| ~ crossed ) ).
thf(zip_derived_cl8,plain,
( on_one_sheet
| ~ crossed ),
inference(cnf,[status(esa)],[on_one_sheet_if_crossed]) ).
thf(dated_if_on_one_sheet,axiom,
( ~ on_one_sheet
| dated ) ).
thf(zip_derived_cl4,plain,
( ~ on_one_sheet
| dated ),
inference(cnf,[status(esa)],[dated_if_on_one_sheet]) ).
thf(dated_on_blue_paper,axiom,
( ~ dated
| on_blue_paper ) ).
thf(zip_derived_cl0,plain,
( ~ dated
| on_blue_paper ),
inference(cnf,[status(esa)],[dated_on_blue_paper]) ).
thf(filed_if_on_blue_paper,axiom,
( ~ on_blue_paper
| filed ) ).
thf(zip_derived_cl7,plain,
( ~ on_blue_paper
| filed ),
inference(cnf,[status(esa)],[filed_if_on_blue_paper]) ).
thf(prove_it_cannot_be_read,conjecture,
~ can_be_read ).
thf(zf_stmt_0,negated_conjecture,
can_be_read,
inference('cnf.neg',[status(esa)],[prove_it_cannot_be_read]) ).
thf(zip_derived_cl11,plain,
can_be_read,
inference(cnf,[status(esa)],[zf_stmt_0]) ).
thf(not_filed_if_read,axiom,
( ~ can_be_read
| ~ filed ) ).
thf(zip_derived_cl3,plain,
( ~ can_be_read
| ~ filed ),
inference(cnf,[status(esa)],[not_filed_if_read]) ).
thf(zip_derived_cl15,plain,
~ filed,
inference('dp-resolution',[status(thm)],[zip_derived_cl11,zip_derived_cl3]) ).
thf(zip_derived_cl16,plain,
~ on_blue_paper,
inference('dp-resolution',[status(thm)],[zip_derived_cl7,zip_derived_cl15]) ).
thf(zip_derived_cl17,plain,
~ dated,
inference('dp-resolution',[status(thm)],[zip_derived_cl0,zip_derived_cl16]) ).
thf(zip_derived_cl18,plain,
~ on_one_sheet,
inference('dp-resolution',[status(thm)],[zip_derived_cl4,zip_derived_cl17]) ).
thf(zip_derived_cl19,plain,
~ crossed,
inference('dp-resolution',[status(thm)],[zip_derived_cl8,zip_derived_cl18]) ).
thf(zip_derived_cl20,plain,
in_black_ink,
inference('dp-resolution',[status(thm)],[zip_derived_cl5,zip_derived_cl19]) ).
thf(black_ink_in_third_person,axiom,
( in_third_person
| ~ in_black_ink ) ).
thf(zip_derived_cl2,plain,
( in_third_person
| ~ in_black_ink ),
inference(cnf,[status(esa)],[black_ink_in_third_person]) ).
thf(zip_derived_cl22,plain,
in_third_person,
inference('dp-resolution',[status(thm)],[zip_derived_cl20,zip_derived_cl2]) ).
thf(letter_by_brown,axiom,
by_brown ).
thf(zip_derived_cl10,plain,
by_brown,
inference(cnf,[status(esa)],[letter_by_brown]) ).
thf(brown_starts_with_sir,axiom,
( ~ by_brown
| begins_with_dear_sir ) ).
thf(zip_derived_cl6,plain,
( ~ by_brown
| begins_with_dear_sir ),
inference(cnf,[status(esa)],[brown_starts_with_sir]) ).
thf(zip_derived_cl14,plain,
begins_with_dear_sir,
inference('dp-resolution',[status(thm)],[zip_derived_cl10,zip_derived_cl6]) ).
thf(no_dear_sirs_in_third_person,axiom,
( ~ begins_with_dear_sir
| ~ in_third_person ) ).
thf(zip_derived_cl9,plain,
( ~ begins_with_dear_sir
| ~ in_third_person ),
inference(cnf,[status(esa)],[no_dear_sirs_in_third_person]) ).
thf(zip_derived_cl21,plain,
~ in_third_person,
inference('dp-resolution',[status(thm)],[zip_derived_cl14,zip_derived_cl9]) ).
thf(zip_derived_cl23,plain,
$false,
inference('dp-resolution',[status(thm)],[zip_derived_cl22,zip_derived_cl21]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.12 % Problem : PUZ004-1 : TPTP v9.2.0. Released v1.0.0.
% 0.07/0.13 % Command : python3 /export/starexec/sandbox2/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox2/tmp/tmp.O4zo7K27xZ true
% 0.13/0.34 % Computer : n002.cluster.edu
% 0.13/0.34 % Model : x86_64 x86_64
% 0.13/0.34 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.34 % Memory : 8042.1875MB
% 0.13/0.34 % OS : Linux 3.10.0-693.el7.x86_64
% 0.13/0.34 % CPULimit : 300
% 0.13/0.34 % WCLimit : 300
% 0.13/0.34 % DateTime : Wed Oct 1 15:09:23 EDT 2025
% 0.13/0.35 % CPUTime :
% 0.13/0.35 % Running portfolio for 300 s
% 0.13/0.35 % File : /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.13/0.35 % Number of cores: 8
% 0.13/0.35 % Python version: Python 3.6.8
% 0.13/0.35 % Running in FO mode
% 0.56/0.64 % Total configuration time : 435
% 0.56/0.64 % Estimated wc time : 1092
% 0.56/0.64 % Estimated cpu time (7 cpus) : 156.0
% 0.57/0.71 % /export/starexec/sandbox2/solver/bin/fo/fo6_bce.sh running for 75s
% 0.57/0.74 % Solved by fo/fo6_bce.sh.
% 0.57/0.74 % BCE start: 12
% 0.57/0.74 % BCE eliminated: 0
% 0.57/0.74 % PE start: 12
% 0.57/0.74 logic: neq
% 0.57/0.74 % PE eliminated: 11
% 0.57/0.74 % done 0 iterations in 0.008s
% 0.57/0.74 % SZS status Theorem for '/export/starexec/sandbox2/benchmark/theBenchmark.p'
% 0.57/0.74 % SZS output start Refutation
% See solution above
% 0.57/0.74
% 0.57/0.74
% 0.57/0.74 % Terminating...
% 0.59/0.86 % Runner terminated.
% 1.55/0.87 % Zipperpin 1.5 exiting
%------------------------------------------------------------------------------