%------------------------------------------------------------------------------
% File : Zipperpin---2.1.9999
% Problem : SWC256-1 : 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.kHgAf29OMp true
% Computer : n018.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 04:59:09 PM UTC 2025
% Result : Unsatisfiable 0.18s 1.14s
% Output : Refutation 0.18s
% Verified :
% SZS Type : -
% Comments :
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.09/0.29 % Problem : SWC256-1 : TPTP v9.2.0. Released v2.4.0.
% 0.09/0.30 % Command : python3 /export/starexec/sandbox2/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox2/tmp/tmp.kHgAf29OMp true
% 0.11/0.56 % Computer : n018.cluster.edu
% 0.11/0.56 % Model : x86_64 x86_64
% 0.11/0.56 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.11/0.56 % Memory : 8042.1875MB
% 0.11/0.56 % OS : Linux 3.10.0-693.el7.x86_64
% 0.11/0.56 % CPULimit : 300
% 0.11/0.56 % WCLimit : 300
% 0.11/0.56 % DateTime : Wed Oct 1 17:11:08 EDT 2025
% 0.11/0.56 % CPUTime :
% 0.11/0.56 % Running portfolio for 300 s
% 0.11/0.56 % File : /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.11/0.58 % Number of cores: 8
% 0.17/0.58 % Python version: Python 3.6.8
% 0.17/0.60 % Running in FO mode
% 0.18/0.88 % Total configuration time : 435
% 0.18/0.88 % Estimated wc time : 1092
% 0.18/0.88 % Estimated cpu time (7 cpus) : 156.0
% 0.18/1.02 % /export/starexec/sandbox2/solver/bin/fo/fo6_bce.sh running for 75s
% 0.18/1.04 % /export/starexec/sandbox2/solver/bin/fo/fo3_bce.sh running for 75s
% 0.18/1.04 % /export/starexec/sandbox2/solver/bin/fo/fo1_av.sh running for 75s
% 0.18/1.10 % /export/starexec/sandbox2/solver/bin/fo/fo13.sh running for 50s
% 0.18/1.13 % /export/starexec/sandbox2/solver/bin/fo/fo7.sh running for 63s
% 0.18/1.14 % Solved by fo/fo3_bce.sh.
% 0.18/1.14 % BCE start: 47
% 0.18/1.14 % BCE eliminated: 2
% 0.18/1.14 % PE start: 45
% 0.18/1.14 logic: eq
% 0.18/1.14 % PE eliminated: 2
% 0.18/1.14 % done 31 iterations in 0.038s
% 0.18/1.14 % SZS status Theorem for '/export/starexec/sandbox2/benchmark/theBenchmark.p'
% 0.18/1.14 % SZS output start Refutation
% 0.18/1.14 thf(nil_type, type, nil: $i).
% 0.18/1.14 thf(cons_type, type, cons: $i > $i > $i).
% 0.18/1.14 thf(sk2_type, type, sk2: $i).
% 0.18/1.14 thf(sk4_type, type, sk4: $i).
% 0.18/1.14 thf(ssItem_type, type, ssItem: $i > $o).
% 0.18/1.14 thf(sk5_type, type, sk5: $i).
% 0.18/1.14 thf(sk3_type, type, sk3: $i).
% 0.18/1.14 thf(neq_type, type, neq: $i > $i > $o).
% 0.18/1.14 thf(ssList_type, type, ssList: $i > $o).
% 0.18/1.14 thf(sk1_type, type, sk1: $i).
% 0.18/1.14 thf(singletonP_type, type, singletonP: $i > $o).
% 0.18/1.14 thf(co1_13, conjecture,
% 0.18/1.14 (~( ( ( nil ) = ( sk3 ) ) | ( ( cons @ sk5 @ nil ) = ( sk3 ) ) ))).
% 0.18/1.14 thf(zf_stmt_0, negated_conjecture,
% 0.18/1.14 (( ( nil ) = ( sk3 ) ) | ( ( cons @ sk5 @ nil ) = ( sk3 ) )),
% 0.18/1.14 inference('cnf.neg', [status(esa)], [co1_13])).
% 0.18/1.14 thf(zip_derived_cl34, plain,
% 0.18/1.14 ((((nil) = (sk3)) | ((cons @ sk5 @ nil) = (sk3)))),
% 0.18/1.14 inference('cnf', [status(esa)], [zf_stmt_0])).
% 0.18/1.14 thf(co1_6, conjecture, (( sk1 ) != ( sk3 ))).
% 0.18/1.14 thf(zf_stmt_1, negated_conjecture, (( sk1 ) = ( sk3 )),
% 0.18/1.14 inference('cnf.neg', [status(esa)], [co1_6])).
% 0.18/1.14 thf(zip_derived_cl41, plain, (((sk1) = (sk3))),
% 0.18/1.14 inference('cnf', [status(esa)], [zf_stmt_1])).
% 0.18/1.14 thf(zip_derived_cl41, plain, (((sk1) = (sk3))),
% 0.18/1.14 inference('cnf', [status(esa)], [zf_stmt_1])).
% 0.18/1.14 thf(zip_derived_cl268, plain,
% 0.18/1.14 ((((nil) = (sk1)) | ((cons @ sk5 @ nil) = (sk1)))),
% 0.18/1.14 inference('demod', [status(thm)],
% 0.18/1.14 [zip_derived_cl34, zip_derived_cl41, zip_derived_cl41])).
% 0.18/1.14 thf(clause116, axiom,
% 0.18/1.14 (( ( cons @ U @ nil ) != ( V ) ) | ( ~( ssItem @ U ) ) |
% 0.18/1.14 ( ~( ssList @ V ) ) | ( singletonP @ V ))).
% 0.18/1.14 thf(zip_derived_cl14, plain,
% 0.18/1.14 (![X0 : $i, X1 : $i]:
% 0.18/1.14 (((cons @ X1 @ nil) != (X0))
% 0.18/1.14 | ~ (ssItem @ X1)
% 0.18/1.14 | ~ (ssList @ X0)
% 0.18/1.14 | (singletonP @ X0))),
% 0.18/1.14 inference('cnf', [status(esa)], [clause116])).
% 0.18/1.14 thf(co1_8, conjecture, (singletonP @ sk1)).
% 0.18/1.14 thf(zf_stmt_2, negated_conjecture, (~( singletonP @ sk1 )),
% 0.18/1.14 inference('cnf.neg', [status(esa)], [co1_8])).
% 0.18/1.14 thf(zip_derived_cl39, plain, (~ (singletonP @ sk1)),
% 0.18/1.14 inference('cnf', [status(esa)], [zf_stmt_2])).
% 0.18/1.14 thf(zip_derived_cl267, plain,
% 0.18/1.14 (![X0 : $i]:
% 0.18/1.14 (~ (ssList @ sk1) | ~ (ssItem @ X0) | ((cons @ X0 @ nil) != (sk1)))),
% 0.18/1.14 inference('dp-resolution', [status(thm)],
% 0.18/1.14 [zip_derived_cl14, zip_derived_cl39])).
% 0.18/1.14 thf(co1_3, conjecture, (~( ssList @ sk3 ))).
% 0.18/1.14 thf(zf_stmt_3, negated_conjecture, (ssList @ sk3),
% 0.18/1.14 inference('cnf.neg', [status(esa)], [co1_3])).
% 0.18/1.14 thf(zip_derived_cl44, plain, ( (ssList @ sk3)),
% 0.18/1.14 inference('cnf', [status(esa)], [zf_stmt_3])).
% 0.18/1.14 thf(zip_derived_cl41, plain, (((sk1) = (sk3))),
% 0.18/1.14 inference('cnf', [status(esa)], [zf_stmt_1])).
% 0.18/1.14 thf(zip_derived_cl271, plain, ( (ssList @ sk1)),
% 0.18/1.14 inference('demod', [status(thm)], [zip_derived_cl44, zip_derived_cl41])).
% 0.18/1.14 thf(zip_derived_cl302, plain,
% 0.18/1.14 (![X0 : $i]: (~ (ssItem @ X0) | ((cons @ X0 @ nil) != (sk1)))),
% 0.18/1.14 inference('demod', [status(thm)], [zip_derived_cl267, zip_derived_cl271])).
% 0.18/1.14 thf(zip_derived_cl303, plain,
% 0.18/1.14 ((((sk1) != (sk1)) | ((nil) = (sk1)) | ~ (ssItem @ sk5))),
% 0.18/1.14 inference('sup-', [status(thm)], [zip_derived_cl268, zip_derived_cl302])).
% 0.18/1.14 thf(zip_derived_cl305, plain, ((~ (ssItem @ sk5) | ((nil) = (sk1)))),
% 0.18/1.14 inference('simplify', [status(thm)], [zip_derived_cl303])).
% 0.18/1.14 thf(co1_9, conjecture, (~( ( ( nil ) = ( sk4 ) ) | ( ssItem @ sk5 ) ))).
% 0.18/1.14 thf(zf_stmt_4, negated_conjecture,
% 0.18/1.14 (( ( nil ) = ( sk4 ) ) | ( ssItem @ sk5 )),
% 0.18/1.14 inference('cnf.neg', [status(esa)], [co1_9])).
% 0.18/1.14 thf(zip_derived_cl38, plain, ((((nil) = (sk4)) | (ssItem @ sk5))),
% 0.18/1.14 inference('cnf', [status(esa)], [zf_stmt_4])).
% 0.18/1.14 thf(co1_5, conjecture, (( sk2 ) != ( sk4 ))).
% 0.18/1.14 thf(zf_stmt_5, negated_conjecture, (( sk2 ) = ( sk4 )),
% 0.18/1.14 inference('cnf.neg', [status(esa)], [co1_5])).
% 0.18/1.14 thf(zip_derived_cl42, plain, (((sk2) = (sk4))),
% 0.18/1.14 inference('cnf', [status(esa)], [zf_stmt_5])).
% 0.18/1.14 thf(zip_derived_cl273, plain, ((((nil) = (sk2)) | (ssItem @ sk5))),
% 0.18/1.14 inference('demod', [status(thm)], [zip_derived_cl38, zip_derived_cl42])).
% 0.18/1.14 thf(co1_11, conjecture,
% 0.18/1.14 (~( ( ( nil ) = ( sk4 ) ) | ( ( cons @ sk5 @ nil ) = ( sk3 ) ) ))).
% 0.18/1.14 thf(zf_stmt_6, negated_conjecture,
% 0.18/1.14 (( ( nil ) = ( sk4 ) ) | ( ( cons @ sk5 @ nil ) = ( sk3 ) )),
% 0.18/1.14 inference('cnf.neg', [status(esa)], [co1_11])).
% 0.18/1.14 thf(zip_derived_cl36, plain,
% 0.18/1.14 ((((nil) = (sk4)) | ((cons @ sk5 @ nil) = (sk3)))),
% 0.18/1.14 inference('cnf', [status(esa)], [zf_stmt_6])).
% 0.18/1.14 thf(zip_derived_cl42, plain, (((sk2) = (sk4))),
% 0.18/1.14 inference('cnf', [status(esa)], [zf_stmt_5])).
% 0.18/1.14 thf(zip_derived_cl41, plain, (((sk1) = (sk3))),
% 0.18/1.14 inference('cnf', [status(esa)], [zf_stmt_1])).
% 0.18/1.14 thf(zip_derived_cl269, plain,
% 0.18/1.14 ((((nil) = (sk2)) | ((cons @ sk5 @ nil) = (sk1)))),
% 0.18/1.14 inference('demod', [status(thm)],
% 0.18/1.14 [zip_derived_cl36, zip_derived_cl42, zip_derived_cl41])).
% 0.18/1.14 thf(clause99, axiom,
% 0.18/1.14 (( ( cons @ U @ V ) != ( V ) ) | ( ~( ssItem @ U ) ) | ( ~( ssList @ V ) ))).
% 0.18/1.14 thf(zip_derived_cl9, plain,
% 0.18/1.14 (![X0 : $i, X1 : $i]:
% 0.18/1.14 (((cons @ X1 @ X0) != (X0)) | ~ (ssItem @ X1) | ~ (ssList @ X0))),
% 0.18/1.14 inference('cnf', [status(esa)], [clause99])).
% 0.18/1.15 thf(zip_derived_cl282, plain,
% 0.18/1.15 ((((sk1) != (nil))
% 0.18/1.15 | ((nil) = (sk2))
% 0.18/1.15 | ~ (ssList @ nil)
% 0.18/1.15 | ~ (ssItem @ sk5))),
% 0.18/1.15 inference('sup-', [status(thm)], [zip_derived_cl269, zip_derived_cl9])).
% 0.18/1.15 thf(clause8, axiom, (ssList @ nil)).
% 0.18/1.15 thf(zip_derived_cl0, plain, ( (ssList @ nil)),
% 0.18/1.15 inference('cnf', [status(esa)], [clause8])).
% 0.18/1.15 thf(zip_derived_cl285, plain,
% 0.18/1.15 ((((sk1) != (nil)) | ((nil) = (sk2)) | ~ (ssItem @ sk5))),
% 0.18/1.15 inference('demod', [status(thm)], [zip_derived_cl282, zip_derived_cl0])).
% 0.18/1.15 thf(co1_7, conjecture, (~( neq @ sk2 @ nil ))).
% 0.18/1.15 thf(zf_stmt_7, negated_conjecture, (neq @ sk2 @ nil),
% 0.18/1.15 inference('cnf.neg', [status(esa)], [co1_7])).
% 0.18/1.15 thf(zip_derived_cl40, plain, ( (neq @ sk2 @ nil)),
% 0.18/1.15 inference('cnf', [status(esa)], [zf_stmt_7])).
% 0.18/1.15 thf(clause115, axiom,
% 0.18/1.15 (( ( U ) != ( V ) ) | ( ~( neq @ U @ V ) ) | ( ~( ssList @ V ) ) |
% 0.18/1.15 ( ~( ssList @ U ) ))).
% 0.18/1.15 thf(zip_derived_cl13, plain,
% 0.18/1.15 (![X0 : $i, X1 : $i]:
% 0.18/1.15 (((X1) != (X0))
% 0.18/1.15 | ~ (neq @ X1 @ X0)
% 0.18/1.15 | ~ (ssList @ X0)
% 0.18/1.15 | ~ (ssList @ X1))),
% 0.18/1.15 inference('cnf', [status(esa)], [clause115])).
% 0.18/1.15 thf(zip_derived_cl263, plain,
% 0.18/1.15 ((~ (ssList @ sk2) | ~ (ssList @ nil) | ((sk2) != (nil)))),
% 0.18/1.15 inference('dp-resolution', [status(thm)],
% 0.18/1.15 [zip_derived_cl40, zip_derived_cl13])).
% 0.18/1.15 thf(zip_derived_cl274, plain, ((~ (ssList @ nil) | ((sk2) != (nil)))),
% 0.18/1.15 inference('local_rewriting', [status(thm)], [zip_derived_cl263])).
% 0.18/1.15 thf(zip_derived_cl0, plain, ( (ssList @ nil)),
% 0.18/1.15 inference('cnf', [status(esa)], [clause8])).
% 0.18/1.15 thf(zip_derived_cl275, plain, (((sk2) != (nil))),
% 0.18/1.15 inference('demod', [status(thm)], [zip_derived_cl274, zip_derived_cl0])).
% 0.18/1.15 thf(zip_derived_cl286, plain, ((((sk1) != (nil)) | ~ (ssItem @ sk5))),
% 0.18/1.15 inference('simplify_reflect-', [status(thm)],
% 0.18/1.15 [zip_derived_cl285, zip_derived_cl275])).
% 0.18/1.15 thf(zip_derived_cl290, plain, ((((nil) = (sk2)) | ((sk1) != (nil)))),
% 0.18/1.15 inference('sup-', [status(thm)], [zip_derived_cl273, zip_derived_cl286])).
% 0.18/1.15 thf(zip_derived_cl275, plain, (((sk2) != (nil))),
% 0.18/1.15 inference('demod', [status(thm)], [zip_derived_cl274, zip_derived_cl0])).
% 0.18/1.15 thf(zip_derived_cl292, plain, (((sk1) != (nil))),
% 0.18/1.15 inference('simplify_reflect-', [status(thm)],
% 0.18/1.15 [zip_derived_cl290, zip_derived_cl275])).
% 0.18/1.15 thf(zip_derived_cl306, plain, (~ (ssItem @ sk5)),
% 0.18/1.15 inference('simplify_reflect-', [status(thm)],
% 0.18/1.15 [zip_derived_cl305, zip_derived_cl292])).
% 0.18/1.15 thf(co1_10, conjecture, (~( ( ( nil ) = ( sk3 ) ) | ( ssItem @ sk5 ) ))).
% 0.18/1.15 thf(zf_stmt_8, negated_conjecture,
% 0.18/1.15 (( ( nil ) = ( sk3 ) ) | ( ssItem @ sk5 )),
% 0.18/1.15 inference('cnf.neg', [status(esa)], [co1_10])).
% 0.18/1.15 thf(zip_derived_cl37, plain, ((((nil) = (sk3)) | (ssItem @ sk5))),
% 0.18/1.15 inference('cnf', [status(esa)], [zf_stmt_8])).
% 0.18/1.15 thf(zip_derived_cl41, plain, (((sk1) = (sk3))),
% 0.18/1.15 inference('cnf', [status(esa)], [zf_stmt_1])).
% 0.18/1.15 thf(zip_derived_cl272, plain, ((((nil) = (sk1)) | (ssItem @ sk5))),
% 0.18/1.15 inference('demod', [status(thm)], [zip_derived_cl37, zip_derived_cl41])).
% 0.18/1.15 thf(zip_derived_cl292, plain, (((sk1) != (nil))),
% 0.18/1.15 inference('simplify_reflect-', [status(thm)],
% 0.18/1.15 [zip_derived_cl290, zip_derived_cl275])).
% 0.18/1.15 thf(zip_derived_cl321, plain, ( (ssItem @ sk5)),
% 0.18/1.15 inference('simplify_reflect-', [status(thm)],
% 0.18/1.15 [zip_derived_cl272, zip_derived_cl292])).
% 0.18/1.15 thf(zip_derived_cl323, plain, ($false),
% 0.18/1.15 inference('demod', [status(thm)], [zip_derived_cl306, zip_derived_cl321])).
% 0.18/1.15
% 0.18/1.15 % SZS output end Refutation
% 0.18/1.15
% 0.18/1.15
% 0.18/1.15 % Terminating...
% 1.56/1.30 % Runner terminated.
% 1.56/1.32 % Zipperpin 1.5 exiting
%------------------------------------------------------------------------------