%------------------------------------------------------------------------------
% File : Zipperpin---2.1.9999
% Problem : SWC208-1 : TPTP v9.2.0. Released v2.4.0.
% Transfm : none
% Format : tptp:raw
% Command : python3 /export/starexec/sandbox/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox/tmp/tmp.kHEE9lRFpV true
% 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 : Thu Oct 2 04:58:58 PM UTC 2025
% Result : Unsatisfiable 0.58s 0.81s
% Output : Refutation 0.58s
% Verified :
% SZS Type : Refutation
% Derivation depth : 12
% Number of leaves : 6
% Syntax : Number of formulae : 38 ( 24 unt; 0 typ; 0 def)
% Number of atoms : 54 ( 39 equ; 0 cnn)
% Maximal formula atoms : 3 ( 1 avg)
% Number of connectives : 66 ( 22 ~; 16 |; 0 &; 28 @)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 5 ( 3 avg)
% Number of types : 2 ( 0 usr)
% Number of type conns : 0 ( 0 >; 0 *; 0 +; 0 <<)
% Number of symbols : 8 ( 6 usr; 6 con; 0-2 aty)
% Number of variables : 0 ( 0 ^; 0 !; 0 ?; 0 :)
% Comments :
%------------------------------------------------------------------------------
thf(nil_type,type,
nil: $i ).
thf(sk2_type,type,
sk2: $i ).
thf(sk4_type,type,
sk4: $i ).
thf(sk3_type,type,
sk3: $i ).
thf(neq_type,type,
neq: $i > $i > $o ).
thf(sk1_type,type,
sk1: $i ).
thf(co1_5,conjecture,
sk2 != sk4 ).
thf(zf_stmt_0,negated_conjecture,
sk2 = sk4,
inference('cnf.neg',[status(esa)],[co1_5]) ).
thf(zip_derived_cl39,plain,
sk2 = sk4,
inference(cnf,[status(esa)],[zf_stmt_0]) ).
thf(co1_9,conjecture,
~ ( ( neq @ sk3 @ nil )
| ( nil = sk4 ) ) ).
thf(zf_stmt_1,negated_conjecture,
( ( neq @ sk3 @ nil )
| ( nil = sk4 ) ),
inference('cnf.neg',[status(esa)],[co1_9]) ).
thf(zip_derived_cl35,plain,
( ( neq @ sk3 @ nil )
| ( nil = sk4 ) ),
inference(cnf,[status(esa)],[zf_stmt_1]) ).
thf(co1_8,conjecture,
neq @ sk1 @ nil ).
thf(zf_stmt_2,negated_conjecture,
~ ( neq @ sk1 @ nil ),
inference('cnf.neg',[status(esa)],[co1_8]) ).
thf(zip_derived_cl36,plain,
~ ( neq @ sk1 @ nil ),
inference(cnf,[status(esa)],[zf_stmt_2]) ).
thf(zip_derived_cl213,plain,
( ( sk3 != sk1 )
| ( nil != nil )
| ( nil = sk4 ) ),
inference('dp-resolution',[status(thm)],[zip_derived_cl35,zip_derived_cl36]) ).
thf(zip_derived_cl228,plain,
( ( nil = sk4 )
| ( sk3 != sk1 ) ),
inference(simplify,[status(thm)],[zip_derived_cl213]) ).
thf(co1_6,conjecture,
sk1 != sk3 ).
thf(zf_stmt_3,negated_conjecture,
sk1 = sk3,
inference('cnf.neg',[status(esa)],[co1_6]) ).
thf(zip_derived_cl38,plain,
sk1 = sk3,
inference(cnf,[status(esa)],[zf_stmt_3]) ).
thf(co1_11,conjecture,
~ ( ( neq @ sk3 @ nil )
| ( nil = sk3 ) ) ).
thf(zf_stmt_4,negated_conjecture,
( ( neq @ sk3 @ nil )
| ( nil = sk3 ) ),
inference('cnf.neg',[status(esa)],[co1_11]) ).
thf(zip_derived_cl33,plain,
( ( neq @ sk3 @ nil )
| ( nil = sk3 ) ),
inference(cnf,[status(esa)],[zf_stmt_4]) ).
thf(zip_derived_cl36_001,plain,
~ ( neq @ sk1 @ nil ),
inference(cnf,[status(esa)],[zf_stmt_2]) ).
thf(zip_derived_cl209,plain,
( ( sk3 != sk1 )
| ( nil != nil )
| ( nil = sk3 ) ),
inference('dp-resolution',[status(thm)],[zip_derived_cl33,zip_derived_cl36]) ).
thf(zip_derived_cl219,plain,
( ( nil = sk3 )
| ( sk3 != sk1 ) ),
inference(simplify,[status(thm)],[zip_derived_cl209]) ).
thf(zip_derived_cl220,plain,
( ( nil = sk1 )
| ( sk3 != sk1 ) ),
inference(local_rewriting,[status(thm)],[zip_derived_cl219]) ).
thf(zip_derived_cl38_002,plain,
sk1 = sk3,
inference(cnf,[status(esa)],[zf_stmt_3]) ).
thf(zip_derived_cl221,plain,
( ( nil = sk1 )
| ( sk1 != sk1 ) ),
inference(demod,[status(thm)],[zip_derived_cl220,zip_derived_cl38]) ).
thf(zip_derived_cl222,plain,
nil = sk1,
inference(simplify,[status(thm)],[zip_derived_cl221]) ).
thf(zip_derived_cl223,plain,
nil = sk3,
inference(demod,[status(thm)],[zip_derived_cl38,zip_derived_cl222]) ).
thf(zip_derived_cl222_003,plain,
nil = sk1,
inference(simplify,[status(thm)],[zip_derived_cl221]) ).
thf(zip_derived_cl229,plain,
( ( nil = sk4 )
| ( nil != nil ) ),
inference(demod,[status(thm)],[zip_derived_cl228,zip_derived_cl223,zip_derived_cl222]) ).
thf(zip_derived_cl230,plain,
nil = sk4,
inference(simplify,[status(thm)],[zip_derived_cl229]) ).
thf(zip_derived_cl231,plain,
sk2 = nil,
inference(demod,[status(thm)],[zip_derived_cl39,zip_derived_cl230]) ).
thf(co1_7,conjecture,
~ ( neq @ sk2 @ nil ) ).
thf(zf_stmt_5,negated_conjecture,
neq @ sk2 @ nil,
inference('cnf.neg',[status(esa)],[co1_7]) ).
thf(zip_derived_cl37,plain,
neq @ sk2 @ nil,
inference(cnf,[status(esa)],[zf_stmt_5]) ).
thf(zip_derived_cl36_004,plain,
~ ( neq @ sk1 @ nil ),
inference(cnf,[status(esa)],[zf_stmt_2]) ).
thf(zip_derived_cl217,plain,
( ( sk2 != sk1 )
| ( nil != nil ) ),
inference('dp-resolution',[status(thm)],[zip_derived_cl37,zip_derived_cl36]) ).
thf(zip_derived_cl218,plain,
sk2 != sk1,
inference(simplify,[status(thm)],[zip_derived_cl217]) ).
thf(zip_derived_cl222_005,plain,
nil = sk1,
inference(simplify,[status(thm)],[zip_derived_cl221]) ).
thf(zip_derived_cl224,plain,
sk2 != nil,
inference(demod,[status(thm)],[zip_derived_cl218,zip_derived_cl222]) ).
thf(zip_derived_cl232,plain,
$false,
inference('simplify_reflect-',[status(thm)],[zip_derived_cl231,zip_derived_cl224]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.12/0.13 % Problem : SWC208-1 : TPTP v9.2.0. Released v2.4.0.
% 0.12/0.14 % Command : python3 /export/starexec/sandbox/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox/tmp/tmp.kHEE9lRFpV true
% 0.14/0.36 % Computer : n024.cluster.edu
% 0.14/0.36 % Model : x86_64 x86_64
% 0.14/0.36 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/0.36 % Memory : 8042.1875MB
% 0.14/0.36 % OS : Linux 3.10.0-693.el7.x86_64
% 0.14/0.36 % CPULimit : 300
% 0.14/0.36 % WCLimit : 300
% 0.14/0.36 % DateTime : Wed Oct 1 17:17:08 EDT 2025
% 0.14/0.36 % CPUTime :
% 0.14/0.36 % Running portfolio for 300 s
% 0.14/0.36 % File : /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.14/0.36 % Number of cores: 8
% 0.14/0.36 % Python version: Python 3.6.8
% 0.14/0.36 % Running in FO mode
% 0.57/0.69 % Total configuration time : 435
% 0.57/0.69 % Estimated wc time : 1092
% 0.57/0.69 % Estimated cpu time (7 cpus) : 156.0
% 0.57/0.74 % /export/starexec/sandbox/solver/bin/fo/fo6_bce.sh running for 75s
% 0.57/0.75 % /export/starexec/sandbox/solver/bin/fo/fo3_bce.sh running for 75s
% 0.58/0.76 % /export/starexec/sandbox/solver/bin/fo/fo1_av.sh running for 75s
% 0.58/0.77 % /export/starexec/sandbox/solver/bin/fo/fo7.sh running for 63s
% 0.58/0.77 % /export/starexec/sandbox/solver/bin/fo/fo13.sh running for 50s
% 0.58/0.79 % /export/starexec/sandbox/solver/bin/fo/fo5.sh running for 50s
% 0.58/0.81 % Solved by fo/fo3_bce.sh.
% 0.58/0.81 % BCE start: 44
% 0.58/0.81 % BCE eliminated: 12
% 0.58/0.81 % PE start: 32
% 0.58/0.81 logic: eq
% 0.58/0.81 % PE eliminated: 0
% 0.58/0.81 % done 11 iterations in 0.016s
% 0.58/0.81 % SZS status Theorem for '/export/starexec/sandbox/benchmark/theBenchmark.p'
% 0.58/0.81 % SZS output start Refutation
% See solution above
% 0.58/0.81
% 0.58/0.81
% 0.58/0.81 % Terminating...
% 0.63/0.87 % Runner terminated.
% 0.63/0.88 % Zipperpin 1.5 exiting
%------------------------------------------------------------------------------