%------------------------------------------------------------------------------
% File : Zipperpin---2.1.9999
% Problem : SET987+1 : TPTP v9.2.0. Released v3.2.0.
% Transfm : none
% Format : tptp:raw
% Command : python3 /export/starexec/sandbox2/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox2/tmp/tmp.FSpxJciKRB true
% Computer : n031.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 04:53:17 PM UTC 2025
% Result : Theorem 0.58s 0.75s
% Output : Refutation 0.58s
% Verified :
% SZS Type : Refutation
% Derivation depth : 6
% Number of leaves : 3
% Syntax : Number of formulae : 12 ( 7 unt; 0 typ; 0 def)
% Number of atoms : 17 ( 9 equ; 0 cnn)
% Maximal formula atoms : 2 ( 1 avg)
% Number of connectives : 66 ( 8 ~; 2 |; 0 &; 53 @)
% ( 1 <=>; 2 =>; 0 <=; 0 <~>)
% Maximal formula depth : 8 ( 4 avg)
% Number of types : 2 ( 0 usr)
% Number of type conns : 0 ( 0 >; 0 *; 0 +; 0 <<)
% Number of symbols : 8 ( 6 usr; 3 con; 0-2 aty)
% Number of variables : 12 ( 0 ^; 12 !; 0 ?; 12 :)
% Comments :
%------------------------------------------------------------------------------
thf(set_union2_type,type,
set_union2: $i > $i > $i ).
thf(in_type,type,
in: $i > $i > $o ).
thf(sk__2_type,type,
sk__2: $i ).
thf(sk__3_type,type,
sk__3: $i ).
thf(singleton_type,type,
singleton: $i > $i ).
thf(set_difference_type,type,
set_difference: $i > $i > $i ).
thf(t141_zfmisc_1,conjecture,
! [A: $i,B: $i] :
( ~ ( in @ A @ B )
=> ( ( set_difference @ ( set_union2 @ B @ ( singleton @ A ) ) @ ( singleton @ A ) )
= B ) ) ).
thf(zf_stmt_0,negated_conjecture,
~ ! [A: $i,B: $i] :
( ~ ( in @ A @ B )
=> ( ( set_difference @ ( set_union2 @ B @ ( singleton @ A ) ) @ ( singleton @ A ) )
= B ) ),
inference('cnf.neg',[status(esa)],[t141_zfmisc_1]) ).
thf(zip_derived_cl7,plain,
~ ( in @ sk__2 @ sk__3 ),
inference(cnf,[status(esa)],[zf_stmt_0]) ).
thf(t65_zfmisc_1,axiom,
! [A: $i,B: $i] :
( ( ( set_difference @ A @ ( singleton @ B ) )
= A )
<=> ~ ( in @ B @ A ) ) ).
thf(zip_derived_cl11,plain,
! [X0: $i,X1: $i] :
( ( ( set_difference @ X0 @ ( singleton @ X1 ) )
= X0 )
| ( in @ X1 @ X0 ) ),
inference(cnf,[status(esa)],[t65_zfmisc_1]) ).
thf(zip_derived_cl8,plain,
( ( set_difference @ ( set_union2 @ sk__3 @ ( singleton @ sk__2 ) ) @ ( singleton @ sk__2 ) )
!= sk__3 ),
inference(cnf,[status(esa)],[zf_stmt_0]) ).
thf(t40_xboole_1,axiom,
! [A: $i,B: $i] :
( ( set_difference @ ( set_union2 @ A @ B ) @ B )
= ( set_difference @ A @ B ) ) ).
thf(zip_derived_cl9,plain,
! [X0: $i,X1: $i] :
( ( set_difference @ ( set_union2 @ X0 @ X1 ) @ X1 )
= ( set_difference @ X0 @ X1 ) ),
inference(cnf,[status(esa)],[t40_xboole_1]) ).
thf(zip_derived_cl44,plain,
( ( set_difference @ sk__3 @ ( singleton @ sk__2 ) )
!= sk__3 ),
inference(demod,[status(thm)],[zip_derived_cl8,zip_derived_cl9]) ).
thf(zip_derived_cl49,plain,
( ( in @ sk__2 @ sk__3 )
| ( sk__3 != sk__3 ) ),
inference('s_sup-',[status(thm)],[zip_derived_cl11,zip_derived_cl44]) ).
thf(zip_derived_cl50,plain,
in @ sk__2 @ sk__3,
inference(simplify,[status(thm)],[zip_derived_cl49]) ).
thf(zip_derived_cl51,plain,
$false,
inference(demod,[status(thm)],[zip_derived_cl7,zip_derived_cl50]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.12 % Problem : SET987+1 : TPTP v9.2.0. Released v3.2.0.
% 0.03/0.13 % Command : python3 /export/starexec/sandbox2/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox2/tmp/tmp.FSpxJciKRB true
% 0.14/0.34 % Computer : n031.cluster.edu
% 0.14/0.34 % Model : x86_64 x86_64
% 0.14/0.34 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/0.34 % Memory : 8042.1875MB
% 0.14/0.34 % OS : Linux 3.10.0-693.el7.x86_64
% 0.14/0.34 % CPULimit : 300
% 0.14/0.34 % WCLimit : 300
% 0.14/0.34 % DateTime : Wed Oct 1 13:05:08 EDT 2025
% 0.14/0.35 % CPUTime :
% 0.14/0.35 % Running portfolio for 300 s
% 0.14/0.35 % File : /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.14/0.35 % Number of cores: 8
% 0.14/0.35 % Python version: Python 3.6.8
% 0.21/0.35 % Running in FO mode
% 0.58/0.65 % Total configuration time : 435
% 0.58/0.65 % Estimated wc time : 1092
% 0.58/0.65 % Estimated cpu time (7 cpus) : 156.0
% 0.58/0.71 % /export/starexec/sandbox2/solver/bin/fo/fo6_bce.sh running for 75s
% 0.58/0.75 % /export/starexec/sandbox2/solver/bin/fo/fo3_bce.sh running for 75s
% 0.58/0.75 % Solved by fo/fo6_bce.sh.
% 0.58/0.75 % BCE start: 12
% 0.58/0.75 % BCE eliminated: 1
% 0.58/0.75 % PE start: 11
% 0.58/0.75 logic: eq
% 0.58/0.75 % PE eliminated: 0
% 0.58/0.75 % done 14 iterations in 0.016s
% 0.58/0.75 % SZS status Theorem for '/export/starexec/sandbox2/benchmark/theBenchmark.p'
% 0.58/0.75 % SZS output start Refutation
% See solution above
% 0.58/0.75
% 0.58/0.75
% 0.58/0.75 % Terminating...
% 1.40/0.86 % Runner terminated.
% 1.40/0.87 % Zipperpin 1.5 exiting
%------------------------------------------------------------------------------