%------------------------------------------------------------------------------
% File : Zipperpin---2.1.9999
% Problem : SWC018-1 : TPTP v9.2.0. Released v2.4.0.
% Transfm : none
% Format : tptp:raw
% Command : python3 /export/starexec/sandbox2/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox2/tmp/tmp.cu5rfhxEUO true
% Computer : n009.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 04:58:17 PM UTC 2025
% Result : Unsatisfiable 0.18s 1.01s
% Output : Refutation 0.18s
% Verified :
% SZS Type : -
% Comments :
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.10/0.32 % Problem : SWC018-1 : TPTP v9.2.0. Released v2.4.0.
% 0.10/0.33 % Command : python3 /export/starexec/sandbox2/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox2/tmp/tmp.cu5rfhxEUO true
% 0.12/0.53 % Computer : n009.cluster.edu
% 0.12/0.53 % Model : x86_64 x86_64
% 0.12/0.53 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.53 % Memory : 8042.1875MB
% 0.12/0.53 % OS : Linux 3.10.0-693.el7.x86_64
% 0.12/0.53 % CPULimit : 300
% 0.12/0.53 % WCLimit : 300
% 0.12/0.53 % DateTime : Wed Oct 1 17:16:38 EDT 2025
% 0.12/0.54 % CPUTime :
% 0.12/0.54 % Running portfolio for 300 s
% 0.12/0.54 % File : /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.12/0.54 % Number of cores: 8
% 0.12/0.54 % Python version: Python 3.6.8
% 0.12/0.54 % Running in FO mode
% 0.18/0.82 % Total configuration time : 435
% 0.18/0.82 % Estimated wc time : 1092
% 0.18/0.82 % Estimated cpu time (7 cpus) : 156.0
% 0.18/0.92 % /export/starexec/sandbox2/solver/bin/fo/fo3_bce.sh running for 75s
% 0.18/0.92 % /export/starexec/sandbox2/solver/bin/fo/fo6_bce.sh running for 75s
% 0.18/0.93 % /export/starexec/sandbox2/solver/bin/fo/fo1_av.sh running for 75s
% 0.18/0.93 % /export/starexec/sandbox2/solver/bin/fo/fo13.sh running for 50s
% 0.18/0.93 % /export/starexec/sandbox2/solver/bin/fo/fo7.sh running for 63s
% 0.18/0.93 % /export/starexec/sandbox2/solver/bin/fo/fo5.sh running for 50s
% 0.18/0.93 % /export/starexec/sandbox2/solver/bin/fo/fo4.sh running for 50s
% 0.18/1.01 % Solved by fo/fo3_bce.sh.
% 0.18/1.01 % BCE start: 56
% 0.18/1.01 % BCE eliminated: 0
% 0.18/1.01 % PE start: 56
% 0.18/1.01 logic: eq
% 0.18/1.01 % PE eliminated: -1
% 0.18/1.01 % done 59 iterations in 0.062s
% 0.18/1.01 % SZS status Theorem for '/export/starexec/sandbox2/benchmark/theBenchmark.p'
% 0.18/1.01 % SZS output start Refutation
% 0.18/1.01 thf(nil_type, type, nil: $i).
% 0.18/1.01 thf(frontsegP_type, type, frontsegP: $i > $i > $o).
% 0.18/1.01 thf(sk2_type, type, sk2: $i).
% 0.18/1.01 thf(sk4_type, type, sk4: $i).
% 0.18/1.01 thf(sk5_type, type, sk5: $i).
% 0.18/1.01 thf(sk3_type, type, sk3: $i).
% 0.18/1.01 thf(neq_type, type, neq: $i > $i > $o).
% 0.18/1.01 thf(app_type, type, app: $i > $i > $i).
% 0.18/1.01 thf(ssList_type, type, ssList: $i > $o).
% 0.18/1.01 thf(sk1_type, type, sk1: $i).
% 0.18/1.01 thf(clause61, axiom, (( ~( ssList @ U ) ) | ( frontsegP @ U @ U ))).
% 0.18/1.01 thf(zip_derived_cl7, plain,
% 0.18/1.01 (![X0 : $i]: (~ (ssList @ X0) | (frontsegP @ X0 @ X0))),
% 0.18/1.01 inference('cnf', [status(esa)], [clause61])).
% 0.18/1.01 thf(clause100, axiom,
% 0.18/1.01 (( ~( ssList @ U ) ) | ( ~( ssList @ V ) ) | ( neq @ V @ U ) |
% 0.18/1.01 ( ( V ) = ( U ) ))).
% 0.18/1.01 thf(zip_derived_cl18, plain,
% 0.18/1.01 (![X0 : $i, X1 : $i]:
% 0.18/1.01 (~ (ssList @ X0) | ~ (ssList @ X1) | (neq @ X1 @ X0) | ((X1) = (X0)))),
% 0.18/1.01 inference('cnf', [status(esa)], [clause100])).
% 0.18/1.01 thf(co1_13, conjecture,
% 0.18/1.01 (~( ( ~( frontsegP @ sk1 @ A ) ) | ( ~( frontsegP @ sk2 @ A ) ) |
% 0.18/1.01 ( ~( neq @ A @ nil ) ) | ( ~( ssList @ A ) ) | ( ( nil ) = ( sk2 ) ) ))).
% 0.18/1.01 thf(zf_stmt_0, negated_conjecture,
% 0.18/1.01 (( ~( frontsegP @ sk1 @ A ) ) | ( ~( frontsegP @ sk2 @ A ) ) |
% 0.18/1.01 ( ~( neq @ A @ nil ) ) | ( ~( ssList @ A ) ) | ( ( nil ) = ( sk2 ) )),
% 0.18/1.01 inference('cnf.neg', [status(esa)], [co1_13])).
% 0.18/1.01 thf(zip_derived_cl43, plain,
% 0.18/1.01 (![X0 : $i]:
% 0.18/1.01 (~ (frontsegP @ sk1 @ X0)
% 0.18/1.01 | ~ (frontsegP @ sk2 @ X0)
% 0.18/1.01 | ~ (neq @ X0 @ nil)
% 0.18/1.01 | ~ (ssList @ X0)
% 0.18/1.01 | ((nil) = (sk2)))),
% 0.18/1.01 inference('cnf', [status(esa)], [zf_stmt_0])).
% 0.18/1.01 thf(zip_derived_cl372, plain,
% 0.18/1.01 (![X0 : $i]:
% 0.18/1.01 (((X0) = (nil))
% 0.18/1.01 | ~ (ssList @ X0)
% 0.18/1.01 | ~ (ssList @ nil)
% 0.18/1.01 | ((nil) = (sk2))
% 0.18/1.01 | ~ (ssList @ X0)
% 0.18/1.01 | ~ (frontsegP @ sk2 @ X0)
% 0.18/1.01 | ~ (frontsegP @ sk1 @ X0))),
% 0.18/1.01 inference('dp-resolution', [status(thm)],
% 0.18/1.01 [zip_derived_cl18, zip_derived_cl43])).
% 0.18/1.01 thf(zip_derived_cl526, plain,
% 0.18/1.01 (![X0 : $i]:
% 0.18/1.01 (~ (frontsegP @ sk1 @ X0)
% 0.18/1.01 | ~ (frontsegP @ sk2 @ X0)
% 0.18/1.01 | ((nil) = (sk2))
% 0.18/1.01 | ~ (ssList @ nil)
% 0.18/1.01 | ~ (ssList @ X0)
% 0.18/1.01 | ((X0) = (nil)))),
% 0.18/1.01 inference('simplify', [status(thm)], [zip_derived_cl372])).
% 0.18/1.01 thf(clause8, axiom, (ssList @ nil)).
% 0.18/1.01 thf(zip_derived_cl1, plain, ( (ssList @ nil)),
% 0.18/1.01 inference('cnf', [status(esa)], [clause8])).
% 0.18/1.01 thf(zip_derived_cl527, plain,
% 0.18/1.01 (![X0 : $i]:
% 0.18/1.01 (~ (frontsegP @ sk1 @ X0)
% 0.18/1.01 | ~ (frontsegP @ sk2 @ X0)
% 0.18/1.01 | ((nil) = (sk2))
% 0.18/1.01 | ~ (ssList @ X0)
% 0.18/1.01 | ((X0) = (nil)))),
% 0.18/1.01 inference('demod', [status(thm)], [zip_derived_cl526, zip_derived_cl1])).
% 0.18/1.01 thf(co1_8, conjecture, (( app @ sk3 @ sk5 ) != ( sk4 ))).
% 0.18/1.01 thf(zf_stmt_1, negated_conjecture, (( app @ sk3 @ sk5 ) = ( sk4 )),
% 0.18/1.01 inference('cnf.neg', [status(esa)], [co1_8])).
% 0.18/1.01 thf(zip_derived_cl48, plain, (((app @ sk3 @ sk5) = (sk4))),
% 0.18/1.01 inference('cnf', [status(esa)], [zf_stmt_1])).
% 0.18/1.01 thf(co1_6, conjecture, (( sk1 ) != ( sk3 ))).
% 0.18/1.01 thf(zf_stmt_2, negated_conjecture, (( sk1 ) = ( sk3 )),
% 0.18/1.01 inference('cnf.neg', [status(esa)], [co1_6])).
% 0.18/1.01 thf(zip_derived_cl50, plain, (((sk1) = (sk3))),
% 0.18/1.01 inference('cnf', [status(esa)], [zf_stmt_2])).
% 0.18/1.01 thf(co1_5, conjecture, (( sk2 ) != ( sk4 ))).
% 0.18/1.01 thf(zf_stmt_3, negated_conjecture, (( sk2 ) = ( sk4 )),
% 0.18/1.01 inference('cnf.neg', [status(esa)], [co1_5])).
% 0.18/1.01 thf(zip_derived_cl51, plain, (((sk2) = (sk4))),
% 0.18/1.01 inference('cnf', [status(esa)], [zf_stmt_3])).
% 0.18/1.01 thf(zip_derived_cl395, plain, (((app @ sk1 @ sk5) = (sk2))),
% 0.18/1.01 inference('demod', [status(thm)],
% 0.18/1.01 [zip_derived_cl48, zip_derived_cl50, zip_derived_cl51])).
% 0.18/1.01 thf(clause118, axiom,
% 0.18/1.01 (( ( app @ U @ V ) != ( nil ) ) | ( ~( ssList @ V ) ) |
% 0.18/1.01 ( ~( ssList @ U ) ) | ( ( nil ) = ( U ) ))).
% 0.18/1.01 thf(zip_derived_cl22, plain,
% 0.18/1.01 (![X0 : $i, X1 : $i]:
% 0.18/1.01 (((app @ X0 @ X1) != (nil))
% 0.18/1.01 | ~ (ssList @ X1)
% 0.18/1.01 | ~ (ssList @ X0)
% 0.18/1.01 | ((nil) = (X0)))),
% 0.18/1.01 inference('cnf', [status(esa)], [clause118])).
% 0.18/1.01 thf(zip_derived_cl431, plain,
% 0.18/1.01 ((((sk2) != (nil))
% 0.18/1.01 | ((nil) = (sk1))
% 0.18/1.01 | ~ (ssList @ sk1)
% 0.18/1.01 | ~ (ssList @ sk5))),
% 0.18/1.01 inference('sup-', [status(thm)], [zip_derived_cl395, zip_derived_cl22])).
% 0.18/1.01 thf(co1_3, conjecture, (~( ssList @ sk3 ))).
% 0.18/1.01 thf(zf_stmt_4, negated_conjecture, (ssList @ sk3),
% 0.18/1.01 inference('cnf.neg', [status(esa)], [co1_3])).
% 0.18/1.01 thf(zip_derived_cl53, plain, ( (ssList @ sk3)),
% 0.18/1.01 inference('cnf', [status(esa)], [zf_stmt_4])).
% 0.18/1.01 thf(zip_derived_cl50, plain, (((sk1) = (sk3))),
% 0.18/1.01 inference('cnf', [status(esa)], [zf_stmt_2])).
% 0.18/1.01 thf(zip_derived_cl398, plain, ( (ssList @ sk1)),
% 0.18/1.01 inference('demod', [status(thm)], [zip_derived_cl53, zip_derived_cl50])).
% 0.18/1.01 thf(co1_7, conjecture, (~( ssList @ sk5 ))).
% 0.18/1.01 thf(zf_stmt_5, negated_conjecture, (ssList @ sk5),
% 0.18/1.01 inference('cnf.neg', [status(esa)], [co1_7])).
% 0.18/1.01 thf(zip_derived_cl49, plain, ( (ssList @ sk5)),
% 0.18/1.01 inference('cnf', [status(esa)], [zf_stmt_5])).
% 0.18/1.01 thf(zip_derived_cl436, plain, ((((sk2) != (nil)) | ((nil) = (sk1)))),
% 0.18/1.01 inference('demod', [status(thm)],
% 0.18/1.01 [zip_derived_cl431, zip_derived_cl398, zip_derived_cl49])).
% 0.18/1.01 thf(co1_14, conjecture, (~( ( neq @ sk2 @ nil ) | ( ( nil ) != ( sk1 ) ) ))).
% 0.18/1.01 thf(zf_stmt_6, negated_conjecture,
% 0.18/1.01 (( neq @ sk2 @ nil ) | ( ( nil ) != ( sk1 ) )),
% 0.18/1.01 inference('cnf.neg', [status(esa)], [co1_14])).
% 0.18/1.01 thf(zip_derived_cl42, plain, (( (neq @ sk2 @ nil) | ((nil) != (sk1)))),
% 0.18/1.01 inference('cnf', [status(esa)], [zf_stmt_6])).
% 0.18/1.01 thf(clause115, axiom,
% 0.18/1.01 (( ( U ) != ( V ) ) | ( ~( neq @ U @ V ) ) | ( ~( ssList @ V ) ) |
% 0.18/1.01 ( ~( ssList @ U ) ))).
% 0.18/1.01 thf(zip_derived_cl20, plain,
% 0.18/1.01 (![X0 : $i, X1 : $i]:
% 0.18/1.01 (((X1) != (X0))
% 0.18/1.01 | ~ (neq @ X1 @ X0)
% 0.18/1.01 | ~ (ssList @ X0)
% 0.18/1.01 | ~ (ssList @ X1))),
% 0.18/1.01 inference('cnf', [status(esa)], [clause115])).
% 0.18/1.01 thf(zip_derived_cl377, plain,
% 0.18/1.01 ((((nil) != (sk1))
% 0.18/1.01 | ~ (ssList @ sk2)
% 0.18/1.01 | ~ (ssList @ nil)
% 0.18/1.01 | ((sk2) != (nil)))),
% 0.18/1.01 inference('dp-resolution', [status(thm)],
% 0.18/1.01 [zip_derived_cl42, zip_derived_cl20])).
% 0.18/1.01 thf(zip_derived_cl400, plain,
% 0.18/1.01 ((((nil) != (sk1)) | ~ (ssList @ nil) | ((sk2) != (nil)))),
% 0.18/1.01 inference('local_rewriting', [status(thm)], [zip_derived_cl377])).
% 0.18/1.01 thf(zip_derived_cl1, plain, ( (ssList @ nil)),
% 0.18/1.01 inference('cnf', [status(esa)], [clause8])).
% 0.18/1.01 thf(zip_derived_cl401, plain, ((((nil) != (sk1)) | ((sk2) != (nil)))),
% 0.18/1.01 inference('demod', [status(thm)], [zip_derived_cl400, zip_derived_cl1])).
% 0.18/1.01 thf(co1_11, conjecture,
% 0.18/1.01 (~( ( ( nil ) != ( sk3 ) ) | ( ( nil ) = ( sk4 ) ) ))).
% 0.18/1.01 thf(zf_stmt_7, negated_conjecture,
% 0.18/1.01 (( ( nil ) != ( sk3 ) ) | ( ( nil ) = ( sk4 ) )),
% 0.18/1.01 inference('cnf.neg', [status(esa)], [co1_11])).
% 0.18/1.01 thf(zip_derived_cl45, plain, ((((nil) != (sk3)) | ((nil) = (sk4)))),
% 0.18/1.01 inference('cnf', [status(esa)], [zf_stmt_7])).
% 0.18/1.01 thf(zip_derived_cl50, plain, (((sk1) = (sk3))),
% 0.18/1.01 inference('cnf', [status(esa)], [zf_stmt_2])).
% 0.18/1.01 thf(zip_derived_cl393, plain, ((((nil) != (sk1)) | ((nil) = (sk4)))),
% 0.18/1.01 inference('demod', [status(thm)], [zip_derived_cl45, zip_derived_cl50])).
% 0.18/1.01 thf(zip_derived_cl51, plain, (((sk2) = (sk4))),
% 0.18/1.01 inference('cnf', [status(esa)], [zf_stmt_3])).
% 0.18/1.01 thf(zip_derived_cl394, plain, ((((sk2) = (nil)) | ((nil) != (sk1)))),
% 0.18/1.01 inference('sup+', [status(thm)], [zip_derived_cl393, zip_derived_cl51])).
% 0.18/1.01 thf(zip_derived_cl402, plain, (((nil) != (sk1))),
% 0.18/1.01 inference('clc', [status(thm)], [zip_derived_cl401, zip_derived_cl394])).
% 0.18/1.01 thf(zip_derived_cl437, plain, (((sk2) != (nil))),
% 0.18/1.01 inference('simplify_reflect-', [status(thm)],
% 0.18/1.01 [zip_derived_cl436, zip_derived_cl402])).
% 0.18/1.01 thf(zip_derived_cl528, plain,
% 0.18/1.01 (![X0 : $i]:
% 0.18/1.01 (~ (frontsegP @ sk1 @ X0)
% 0.18/1.01 | ~ (frontsegP @ sk2 @ X0)
% 0.18/1.01 | ~ (ssList @ X0)
% 0.18/1.01 | ((X0) = (nil)))),
% 0.18/1.01 inference('simplify_reflect-', [status(thm)],
% 0.18/1.01 [zip_derived_cl527, zip_derived_cl437])).
% 0.18/1.01 thf(zip_derived_cl395, plain, (((app @ sk1 @ sk5) = (sk2))),
% 0.18/1.01 inference('demod', [status(thm)],
% 0.18/1.01 [zip_derived_cl48, zip_derived_cl50, zip_derived_cl51])).
% 0.18/1.01 thf(clause137, axiom,
% 0.18/1.01 (( ~( frontsegP @ U @ V ) ) | ( ~( ssList @ W ) ) | ( ~( ssList @ V ) ) |
% 0.18/1.01 ( ~( ssList @ U ) ) | ( frontsegP @ ( app @ U @ W ) @ V ))).
% 0.18/1.01 thf(zip_derived_cl26, plain,
% 0.18/1.01 (![X0 : $i, X1 : $i, X2 : $i]:
% 0.18/1.01 (~ (frontsegP @ X0 @ X1)
% 0.18/1.01 | ~ (ssList @ X2)
% 0.18/1.01 | ~ (ssList @ X1)
% 0.18/1.01 | ~ (ssList @ X0)
% 0.18/1.01 | (frontsegP @ (app @ X0 @ X2) @ X1))),
% 0.18/1.01 inference('cnf', [status(esa)], [clause137])).
% 0.18/1.01 thf(zip_derived_cl544, plain,
% 0.18/1.01 (![X0 : $i]:
% 0.18/1.01 ( (frontsegP @ sk2 @ X0)
% 0.18/1.01 | ~ (ssList @ sk1)
% 0.18/1.01 | ~ (ssList @ X0)
% 0.18/1.01 | ~ (ssList @ sk5)
% 0.18/1.01 | ~ (frontsegP @ sk1 @ X0))),
% 0.18/1.01 inference('sup+', [status(thm)], [zip_derived_cl395, zip_derived_cl26])).
% 0.18/1.01 thf(zip_derived_cl398, plain, ( (ssList @ sk1)),
% 0.18/1.01 inference('demod', [status(thm)], [zip_derived_cl53, zip_derived_cl50])).
% 0.18/1.01 thf(zip_derived_cl49, plain, ( (ssList @ sk5)),
% 0.18/1.01 inference('cnf', [status(esa)], [zf_stmt_5])).
% 0.18/1.01 thf(zip_derived_cl551, plain,
% 0.18/1.01 (![X0 : $i]:
% 0.18/1.01 ( (frontsegP @ sk2 @ X0) | ~ (ssList @ X0) | ~ (frontsegP @ sk1 @ X0))),
% 0.18/1.01 inference('demod', [status(thm)],
% 0.18/1.01 [zip_derived_cl544, zip_derived_cl398, zip_derived_cl49])).
% 0.18/1.01 thf(zip_derived_cl557, plain,
% 0.18/1.01 (![X0 : $i]:
% 0.18/1.01 (((X0) = (nil))
% 0.18/1.01 | ~ (ssList @ X0)
% 0.18/1.01 | ~ (frontsegP @ sk1 @ X0)
% 0.18/1.01 | ~ (frontsegP @ sk1 @ X0)
% 0.18/1.01 | ~ (ssList @ X0))),
% 0.18/1.01 inference('sup+', [status(thm)], [zip_derived_cl528, zip_derived_cl551])).
% 0.18/1.01 thf(zip_derived_cl559, plain,
% 0.18/1.01 (![X0 : $i]:
% 0.18/1.01 (~ (frontsegP @ sk1 @ X0) | ~ (ssList @ X0) | ((X0) = (nil)))),
% 0.18/1.01 inference('simplify', [status(thm)], [zip_derived_cl557])).
% 0.18/1.01 thf(zip_derived_cl574, plain,
% 0.18/1.01 ((~ (ssList @ sk1) | ((sk1) = (nil)) | ~ (ssList @ sk1))),
% 0.18/1.01 inference('sup-', [status(thm)], [zip_derived_cl7, zip_derived_cl559])).
% 0.18/1.01 thf(zip_derived_cl398, plain, ( (ssList @ sk1)),
% 0.18/1.01 inference('demod', [status(thm)], [zip_derived_cl53, zip_derived_cl50])).
% 0.18/1.01 thf(zip_derived_cl398, plain, ( (ssList @ sk1)),
% 0.18/1.01 inference('demod', [status(thm)], [zip_derived_cl53, zip_derived_cl50])).
% 0.18/1.01 thf(zip_derived_cl576, plain, (((sk1) = (nil))),
% 0.18/1.01 inference('demod', [status(thm)],
% 0.18/1.01 [zip_derived_cl574, zip_derived_cl398, zip_derived_cl398])).
% 0.18/1.01 thf(zip_derived_cl402, plain, (((nil) != (sk1))),
% 0.18/1.01 inference('clc', [status(thm)], [zip_derived_cl401, zip_derived_cl394])).
% 0.18/1.01 thf(zip_derived_cl577, plain, ($false),
% 0.18/1.01 inference('simplify_reflect-', [status(thm)],
% 0.18/1.01 [zip_derived_cl576, zip_derived_cl402])).
% 0.18/1.01
% 0.18/1.01 % SZS output end Refutation
% 0.18/1.01
% 0.18/1.01
% 0.18/1.01 % Terminating...
% 2.16/1.14 % Runner terminated.
% 2.16/1.16 % Zipperpin 1.5 exiting
%------------------------------------------------------------------------------