TSTP Solution File: SWC080-1 by Zipperpin---2.1.9999
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%------------------------------------------------------------------------------
% File : Zipperpin---2.1.9999
% Problem : SWC080-1 : TPTP v8.1.2. Released v2.4.0.
% Transfm : NO INFORMATION
% Format : NO INFORMATION
% Command : python3 /export/starexec/sandbox2/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox2/tmp/tmp.3Ffif1xnpe true
% Computer : n014.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 Aug 31 21:29:00 EDT 2023
% Result : Unsatisfiable 3.05s 1.09s
% Output : Refutation 3.05s
% Verified :
% SZS Type : -
% Comments :
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.13 % Problem : SWC080-1 : TPTP v8.1.2. Released v2.4.0.
% 0.00/0.14 % Command : python3 /export/starexec/sandbox2/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox2/tmp/tmp.3Ffif1xnpe true
% 0.18/0.35 % Computer : n014.cluster.edu
% 0.18/0.35 % Model : x86_64 x86_64
% 0.18/0.35 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.18/0.35 % Memory : 8042.1875MB
% 0.18/0.35 % OS : Linux 3.10.0-693.el7.x86_64
% 0.18/0.35 % CPULimit : 300
% 0.18/0.35 % WCLimit : 300
% 0.18/0.35 % DateTime : Mon Aug 28 17:44:46 EDT 2023
% 0.18/0.35 % CPUTime :
% 0.18/0.35 % Running portfolio for 300 s
% 0.18/0.35 % File : /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.18/0.36 % Number of cores: 8
% 0.18/0.36 % Python version: Python 3.6.8
% 0.18/0.36 % Running in FO mode
% 0.22/0.65 % Total configuration time : 435
% 0.22/0.65 % Estimated wc time : 1092
% 0.22/0.65 % Estimated cpu time (7 cpus) : 156.0
% 0.22/0.72 % /export/starexec/sandbox2/solver/bin/fo/fo6_bce.sh running for 75s
% 0.22/0.72 % /export/starexec/sandbox2/solver/bin/fo/fo3_bce.sh running for 75s
% 0.22/0.77 % /export/starexec/sandbox2/solver/bin/fo/fo1_av.sh running for 75s
% 0.22/0.77 % /export/starexec/sandbox2/solver/bin/fo/fo7.sh running for 63s
% 0.22/0.77 % /export/starexec/sandbox2/solver/bin/fo/fo13.sh running for 50s
% 0.22/0.77 % /export/starexec/sandbox2/solver/bin/fo/fo5.sh running for 50s
% 0.22/0.77 % /export/starexec/sandbox2/solver/bin/fo/fo4.sh running for 50s
% 3.05/1.09 % Solved by fo/fo6_bce.sh.
% 3.05/1.09 % BCE start: 203
% 3.05/1.09 % BCE eliminated: 0
% 3.05/1.09 % PE start: 203
% 3.05/1.09 logic: eq
% 3.05/1.09 % PE eliminated: 6
% 3.05/1.09 % done 326 iterations in 0.347s
% 3.05/1.09 % SZS status Theorem for '/export/starexec/sandbox2/benchmark/theBenchmark.p'
% 3.05/1.09 % SZS output start Refutation
% 3.05/1.09 thf(nil_type, type, nil: $i).
% 3.05/1.09 thf(frontsegP_type, type, frontsegP: $i > $i > $o).
% 3.05/1.09 thf(sk2_type, type, sk2: $i).
% 3.05/1.09 thf(skaf45_type, type, skaf45: $i > $i > $i).
% 3.05/1.09 thf(sk5_type, type, sk5: $i).
% 3.05/1.09 thf(sk4_type, type, sk4: $i).
% 3.05/1.09 thf(sk3_type, type, sk3: $i).
% 3.05/1.09 thf(neq_type, type, neq: $i > $i > $o).
% 3.05/1.09 thf(app_type, type, app: $i > $i > $i).
% 3.05/1.09 thf(ssList_type, type, ssList: $i > $o).
% 3.05/1.09 thf(sk1_type, type, sk1: $i).
% 3.05/1.09 thf(segmentP_type, type, segmentP: $i > $i > $o).
% 3.05/1.09 thf(clause132, axiom,
% 3.05/1.09 (( ~( frontsegP @ U @ V ) ) | ( ~( ssList @ V ) ) | ( ~( ssList @ U ) ) |
% 3.05/1.09 ( ( app @ V @ ( skaf45 @ U @ V ) ) = ( U ) ))).
% 3.05/1.09 thf(zip_derived_cl131, plain,
% 3.05/1.09 (![X0 : $i, X1 : $i]:
% 3.05/1.09 (~ (frontsegP @ X0 @ X1)
% 3.05/1.09 | ~ (ssList @ X1)
% 3.05/1.09 | ~ (ssList @ X0)
% 3.05/1.09 | ((app @ X1 @ (skaf45 @ X0 @ X1)) = (X0)))),
% 3.05/1.09 inference('cnf', [status(esa)], [clause132])).
% 3.05/1.09 thf(clause74, axiom, (( ~( ssList @ U ) ) | ( ( app @ nil @ U ) = ( U ) ))).
% 3.05/1.09 thf(zip_derived_cl73, plain,
% 3.05/1.09 (![X0 : $i]: (~ (ssList @ X0) | ((app @ nil @ X0) = (X0)))),
% 3.05/1.09 inference('cnf', [status(esa)], [clause74])).
% 3.05/1.09 thf(clause173, axiom,
% 3.05/1.09 (( ( app @ ( app @ U @ V ) @ W ) != ( X ) ) | ( ~( ssList @ W ) ) |
% 3.05/1.09 ( ~( ssList @ U ) ) | ( ~( ssList @ V ) ) | ( ~( ssList @ X ) ) |
% 3.05/1.09 ( segmentP @ X @ V ))).
% 3.05/1.09 thf(zip_derived_cl172, plain,
% 3.05/1.09 (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 3.05/1.09 (((app @ (app @ X1 @ X2) @ X3) != (X0))
% 3.05/1.09 | ~ (ssList @ X3)
% 3.05/1.09 | ~ (ssList @ X1)
% 3.05/1.09 | ~ (ssList @ X2)
% 3.05/1.09 | ~ (ssList @ X0)
% 3.05/1.09 | (segmentP @ X0 @ X2))),
% 3.05/1.09 inference('cnf', [status(esa)], [clause173])).
% 3.05/1.09 thf(zip_derived_cl2762, plain,
% 3.05/1.09 (![X0 : $i, X1 : $i, X2 : $i]:
% 3.05/1.09 (~ (ssList @ X0)
% 3.05/1.09 | ((app @ X0 @ X2) != (X1))
% 3.05/1.09 | ~ (ssList @ X2)
% 3.05/1.09 | ~ (ssList @ nil)
% 3.05/1.09 | ~ (ssList @ X0)
% 3.05/1.09 | ~ (ssList @ X1)
% 3.05/1.09 | (segmentP @ X1 @ X0))),
% 3.05/1.09 inference('s_sup-', [status(thm)], [zip_derived_cl73, zip_derived_cl172])).
% 3.05/1.09 thf(clause8, axiom, (ssList @ nil)).
% 3.05/1.09 thf(zip_derived_cl7, plain, ( (ssList @ nil)),
% 3.05/1.09 inference('cnf', [status(esa)], [clause8])).
% 3.05/1.09 thf(zip_derived_cl2787, plain,
% 3.05/1.09 (![X0 : $i, X1 : $i, X2 : $i]:
% 3.05/1.09 (~ (ssList @ X0)
% 3.05/1.09 | ((app @ X0 @ X2) != (X1))
% 3.05/1.09 | ~ (ssList @ X2)
% 3.05/1.09 | ~ (ssList @ X0)
% 3.05/1.09 | ~ (ssList @ X1)
% 3.05/1.09 | (segmentP @ X1 @ X0))),
% 3.05/1.09 inference('demod', [status(thm)], [zip_derived_cl2762, zip_derived_cl7])).
% 3.05/1.09 thf(zip_derived_cl2788, plain,
% 3.05/1.09 (![X0 : $i, X1 : $i, X2 : $i]:
% 3.05/1.09 ( (segmentP @ X1 @ X0)
% 3.05/1.09 | ~ (ssList @ X1)
% 3.05/1.09 | ~ (ssList @ X2)
% 3.05/1.09 | ((app @ X0 @ X2) != (X1))
% 3.05/1.09 | ~ (ssList @ X0))),
% 3.05/1.09 inference('simplify', [status(thm)], [zip_derived_cl2787])).
% 3.05/1.09 thf(zip_derived_cl2800, plain,
% 3.05/1.09 (![X0 : $i, X1 : $i, X2 : $i]:
% 3.05/1.09 (~ (ssList @ X0)
% 3.05/1.09 | ~ (ssList @ X2)
% 3.05/1.09 | ~ (frontsegP @ X0 @ X2)
% 3.05/1.09 | (segmentP @ X1 @ X2)
% 3.05/1.09 | ~ (ssList @ X1)
% 3.05/1.09 | ~ (ssList @ (skaf45 @ X0 @ X2))
% 3.05/1.09 | ((X0) != (X1))
% 3.05/1.09 | ~ (ssList @ X2))),
% 3.05/1.09 inference('s_sup-', [status(thm)],
% 3.05/1.09 [zip_derived_cl131, zip_derived_cl2788])).
% 3.05/1.09 thf(clause51, axiom, (ssList @ ( skaf45 @ U @ V ))).
% 3.05/1.09 thf(zip_derived_cl50, plain,
% 3.05/1.09 (![X0 : $i, X1 : $i]: (ssList @ (skaf45 @ X0 @ X1))),
% 3.05/1.09 inference('cnf', [status(esa)], [clause51])).
% 3.05/1.09 thf(zip_derived_cl2816, plain,
% 3.05/1.09 (![X0 : $i, X1 : $i, X2 : $i]:
% 3.05/1.09 (~ (ssList @ X0)
% 3.05/1.09 | ~ (ssList @ X2)
% 3.05/1.09 | ~ (frontsegP @ X0 @ X2)
% 3.05/1.09 | (segmentP @ X1 @ X2)
% 3.05/1.09 | ~ (ssList @ X1)
% 3.05/1.09 | ((X0) != (X1))
% 3.05/1.09 | ~ (ssList @ X2))),
% 3.05/1.09 inference('demod', [status(thm)], [zip_derived_cl2800, zip_derived_cl50])).
% 3.05/1.09 thf(zip_derived_cl2817, plain,
% 3.05/1.09 (![X0 : $i, X1 : $i, X2 : $i]:
% 3.05/1.09 (((X0) != (X1))
% 3.05/1.09 | ~ (ssList @ X1)
% 3.05/1.09 | (segmentP @ X1 @ X2)
% 3.05/1.09 | ~ (frontsegP @ X0 @ X2)
% 3.05/1.09 | ~ (ssList @ X2)
% 3.05/1.09 | ~ (ssList @ X0))),
% 3.05/1.09 inference('simplify', [status(thm)], [zip_derived_cl2816])).
% 3.05/1.09 thf(zip_derived_cl2891, plain,
% 3.05/1.09 (![X0 : $i, X1 : $i]:
% 3.05/1.09 (~ (ssList @ X0)
% 3.05/1.09 | ~ (ssList @ X1)
% 3.05/1.09 | ~ (frontsegP @ X0 @ X1)
% 3.05/1.09 | (segmentP @ X0 @ X1)
% 3.05/1.09 | ~ (ssList @ X0))),
% 3.05/1.09 inference('eq_res', [status(thm)], [zip_derived_cl2817])).
% 3.05/1.09 thf(zip_derived_cl2892, plain,
% 3.05/1.09 (![X0 : $i, X1 : $i]:
% 3.05/1.09 ( (segmentP @ X0 @ X1)
% 3.05/1.09 | ~ (frontsegP @ X0 @ X1)
% 3.05/1.09 | ~ (ssList @ X1)
% 3.05/1.09 | ~ (ssList @ X0))),
% 3.05/1.09 inference('simplify', [status(thm)], [zip_derived_cl2891])).
% 3.05/1.09 thf(co1_16, conjecture,
% 3.05/1.09 (~( ( ~( neq @ sk4 @ nil ) ) | ( neq @ sk5 @ nil ) ))).
% 3.05/1.09 thf(zf_stmt_0, negated_conjecture,
% 3.05/1.09 (( ~( neq @ sk4 @ nil ) ) | ( neq @ sk5 @ nil )),
% 3.05/1.09 inference('cnf.neg', [status(esa)], [co1_16])).
% 3.05/1.09 thf(zip_derived_cl200, plain, ((~ (neq @ sk4 @ nil) | (neq @ sk5 @ nil))),
% 3.05/1.09 inference('cnf', [status(esa)], [zf_stmt_0])).
% 3.05/1.09 thf(co1_5, conjecture, (( sk2 ) != ( sk4 ))).
% 3.05/1.09 thf(zf_stmt_1, negated_conjecture, (( sk2 ) = ( sk4 )),
% 3.05/1.09 inference('cnf.neg', [status(esa)], [co1_5])).
% 3.05/1.09 thf(zip_derived_cl189, plain, (((sk2) = (sk4))),
% 3.05/1.09 inference('cnf', [status(esa)], [zf_stmt_1])).
% 3.05/1.09 thf(co1_7, conjecture, (~( neq @ sk2 @ nil ))).
% 3.05/1.09 thf(zf_stmt_2, negated_conjecture, (neq @ sk2 @ nil),
% 3.05/1.09 inference('cnf.neg', [status(esa)], [co1_7])).
% 3.05/1.09 thf(zip_derived_cl191, plain, ( (neq @ sk2 @ nil)),
% 3.05/1.09 inference('cnf', [status(esa)], [zf_stmt_2])).
% 3.05/1.09 thf(zip_derived_cl1440, plain, ( (neq @ sk5 @ nil)),
% 3.05/1.09 inference('demod', [status(thm)],
% 3.05/1.09 [zip_derived_cl200, zip_derived_cl189, zip_derived_cl191])).
% 3.05/1.09 thf(zip_derived_cl2892, plain,
% 3.05/1.09 (![X0 : $i, X1 : $i]:
% 3.05/1.09 ( (segmentP @ X0 @ X1)
% 3.05/1.09 | ~ (frontsegP @ X0 @ X1)
% 3.05/1.09 | ~ (ssList @ X1)
% 3.05/1.09 | ~ (ssList @ X0))),
% 3.05/1.09 inference('simplify', [status(thm)], [zip_derived_cl2891])).
% 3.05/1.09 thf(co1_14, conjecture,
% 3.05/1.09 (~( ( ~( neq @ sk4 @ nil ) ) | ( ~( segmentP @ sk1 @ A ) ) |
% 3.05/1.09 ( ~( segmentP @ sk2 @ A ) ) | ( ~( neq @ A @ nil ) ) |
% 3.05/1.09 ( ~( ssList @ A ) ) ))).
% 3.05/1.09 thf(zf_stmt_3, negated_conjecture,
% 3.05/1.09 (( ~( neq @ sk4 @ nil ) ) | ( ~( segmentP @ sk1 @ A ) ) |
% 3.05/1.09 ( ~( segmentP @ sk2 @ A ) ) | ( ~( neq @ A @ nil ) ) | ( ~( ssList @ A ) )),
% 3.05/1.09 inference('cnf.neg', [status(esa)], [co1_14])).
% 3.05/1.09 thf(zip_derived_cl198, plain,
% 3.05/1.09 (![X0 : $i]:
% 3.05/1.09 (~ (neq @ sk4 @ nil)
% 3.05/1.09 | ~ (segmentP @ sk1 @ X0)
% 3.05/1.09 | ~ (segmentP @ sk2 @ X0)
% 3.05/1.09 | ~ (neq @ X0 @ nil)
% 3.05/1.09 | ~ (ssList @ X0))),
% 3.05/1.09 inference('cnf', [status(esa)], [zf_stmt_3])).
% 3.05/1.09 thf(zip_derived_cl189, plain, (((sk2) = (sk4))),
% 3.05/1.09 inference('cnf', [status(esa)], [zf_stmt_1])).
% 3.05/1.09 thf(zip_derived_cl191, plain, ( (neq @ sk2 @ nil)),
% 3.05/1.09 inference('cnf', [status(esa)], [zf_stmt_2])).
% 3.05/1.09 thf(zip_derived_cl1474, plain,
% 3.05/1.09 (![X0 : $i]:
% 3.05/1.09 (~ (segmentP @ sk1 @ X0)
% 3.05/1.09 | ~ (segmentP @ sk2 @ X0)
% 3.05/1.09 | ~ (neq @ X0 @ nil)
% 3.05/1.09 | ~ (ssList @ X0))),
% 3.05/1.09 inference('demod', [status(thm)],
% 3.05/1.09 [zip_derived_cl198, zip_derived_cl189, zip_derived_cl191])).
% 3.05/1.09 thf(zip_derived_cl2940, plain,
% 3.05/1.09 (![X0 : $i]:
% 3.05/1.09 (~ (ssList @ sk1)
% 3.05/1.09 | ~ (ssList @ X0)
% 3.05/1.09 | ~ (frontsegP @ sk1 @ X0)
% 3.05/1.09 | ~ (segmentP @ sk2 @ X0)
% 3.05/1.09 | ~ (neq @ X0 @ nil)
% 3.05/1.09 | ~ (ssList @ X0))),
% 3.05/1.09 inference('s_sup-', [status(thm)],
% 3.05/1.09 [zip_derived_cl2892, zip_derived_cl1474])).
% 3.05/1.09 thf(co1_1, conjecture, (~( ssList @ sk1 ))).
% 3.05/1.09 thf(zf_stmt_4, negated_conjecture, (ssList @ sk1),
% 3.05/1.09 inference('cnf.neg', [status(esa)], [co1_1])).
% 3.05/1.09 thf(zip_derived_cl185, plain, ( (ssList @ sk1)),
% 3.05/1.09 inference('cnf', [status(esa)], [zf_stmt_4])).
% 3.05/1.09 thf(zip_derived_cl2948, plain,
% 3.05/1.09 (![X0 : $i]:
% 3.05/1.09 (~ (ssList @ X0)
% 3.05/1.09 | ~ (frontsegP @ sk1 @ X0)
% 3.05/1.09 | ~ (segmentP @ sk2 @ X0)
% 3.05/1.09 | ~ (neq @ X0 @ nil)
% 3.05/1.09 | ~ (ssList @ X0))),
% 3.05/1.09 inference('demod', [status(thm)], [zip_derived_cl2940, zip_derived_cl185])).
% 3.05/1.09 thf(zip_derived_cl2949, plain,
% 3.05/1.09 (![X0 : $i]:
% 3.05/1.09 (~ (neq @ X0 @ nil)
% 3.05/1.09 | ~ (segmentP @ sk2 @ X0)
% 3.05/1.09 | ~ (frontsegP @ sk1 @ X0)
% 3.05/1.09 | ~ (ssList @ X0))),
% 3.05/1.09 inference('simplify', [status(thm)], [zip_derived_cl2948])).
% 3.05/1.09 thf(zip_derived_cl2983, plain,
% 3.05/1.09 ((~ (segmentP @ sk2 @ sk5) | ~ (frontsegP @ sk1 @ sk5) | ~ (ssList @ sk5))),
% 3.05/1.09 inference('s_sup-', [status(thm)],
% 3.05/1.09 [zip_derived_cl1440, zip_derived_cl2949])).
% 3.05/1.09 thf(co1_18, conjecture,
% 3.05/1.09 (~( ( ~( neq @ sk4 @ nil ) ) | ( frontsegP @ sk3 @ sk5 ) ))).
% 3.05/1.09 thf(zf_stmt_5, negated_conjecture,
% 3.05/1.09 (( ~( neq @ sk4 @ nil ) ) | ( frontsegP @ sk3 @ sk5 )),
% 3.05/1.09 inference('cnf.neg', [status(esa)], [co1_18])).
% 3.05/1.09 thf(zip_derived_cl202, plain,
% 3.05/1.09 ((~ (neq @ sk4 @ nil) | (frontsegP @ sk3 @ sk5))),
% 3.05/1.09 inference('cnf', [status(esa)], [zf_stmt_5])).
% 3.05/1.09 thf(zip_derived_cl189, plain, (((sk2) = (sk4))),
% 3.05/1.09 inference('cnf', [status(esa)], [zf_stmt_1])).
% 3.05/1.09 thf(zip_derived_cl191, plain, ( (neq @ sk2 @ nil)),
% 3.05/1.09 inference('cnf', [status(esa)], [zf_stmt_2])).
% 3.05/1.09 thf(co1_6, conjecture, (( sk1 ) != ( sk3 ))).
% 3.05/1.09 thf(zf_stmt_6, negated_conjecture, (( sk1 ) = ( sk3 )),
% 3.05/1.09 inference('cnf.neg', [status(esa)], [co1_6])).
% 3.05/1.09 thf(zip_derived_cl190, plain, (((sk1) = (sk3))),
% 3.05/1.09 inference('cnf', [status(esa)], [zf_stmt_6])).
% 3.05/1.09 thf(zip_derived_cl1442, plain, ( (frontsegP @ sk1 @ sk5)),
% 3.05/1.09 inference('demod', [status(thm)],
% 3.05/1.09 [zip_derived_cl202, zip_derived_cl189, zip_derived_cl191,
% 3.05/1.09 zip_derived_cl190])).
% 3.05/1.09 thf(co1_15, conjecture, (~( ( ~( neq @ sk4 @ nil ) ) | ( ssList @ sk5 ) ))).
% 3.05/1.09 thf(zf_stmt_7, negated_conjecture,
% 3.05/1.09 (( ~( neq @ sk4 @ nil ) ) | ( ssList @ sk5 )),
% 3.05/1.09 inference('cnf.neg', [status(esa)], [co1_15])).
% 3.05/1.09 thf(zip_derived_cl199, plain, ((~ (neq @ sk4 @ nil) | (ssList @ sk5))),
% 3.05/1.09 inference('cnf', [status(esa)], [zf_stmt_7])).
% 3.05/1.09 thf(zip_derived_cl189, plain, (((sk2) = (sk4))),
% 3.05/1.09 inference('cnf', [status(esa)], [zf_stmt_1])).
% 3.05/1.09 thf(zip_derived_cl191, plain, ( (neq @ sk2 @ nil)),
% 3.05/1.09 inference('cnf', [status(esa)], [zf_stmt_2])).
% 3.05/1.09 thf(zip_derived_cl1434, plain, ( (ssList @ sk5)),
% 3.05/1.09 inference('demod', [status(thm)],
% 3.05/1.09 [zip_derived_cl199, zip_derived_cl189, zip_derived_cl191])).
% 3.05/1.09 thf(zip_derived_cl2987, plain, (~ (segmentP @ sk2 @ sk5)),
% 3.05/1.09 inference('demod', [status(thm)],
% 3.05/1.09 [zip_derived_cl2983, zip_derived_cl1442, zip_derived_cl1434])).
% 3.05/1.09 thf(zip_derived_cl2988, plain,
% 3.05/1.09 ((~ (ssList @ sk2) | ~ (ssList @ sk5) | ~ (frontsegP @ sk2 @ sk5))),
% 3.05/1.09 inference('s_sup-', [status(thm)],
% 3.05/1.09 [zip_derived_cl2892, zip_derived_cl2987])).
% 3.05/1.09 thf(co1_2, conjecture, (~( ssList @ sk2 ))).
% 3.05/1.09 thf(zf_stmt_8, negated_conjecture, (ssList @ sk2),
% 3.05/1.09 inference('cnf.neg', [status(esa)], [co1_2])).
% 3.05/1.09 thf(zip_derived_cl186, plain, ( (ssList @ sk2)),
% 3.05/1.09 inference('cnf', [status(esa)], [zf_stmt_8])).
% 3.05/1.09 thf(zip_derived_cl1434, plain, ( (ssList @ sk5)),
% 3.05/1.09 inference('demod', [status(thm)],
% 3.05/1.09 [zip_derived_cl199, zip_derived_cl189, zip_derived_cl191])).
% 3.05/1.09 thf(co1_17, conjecture,
% 3.05/1.09 (~( ( ~( neq @ sk4 @ nil ) ) | ( frontsegP @ sk4 @ sk5 ) ))).
% 3.05/1.09 thf(zf_stmt_9, negated_conjecture,
% 3.05/1.09 (( ~( neq @ sk4 @ nil ) ) | ( frontsegP @ sk4 @ sk5 )),
% 3.05/1.09 inference('cnf.neg', [status(esa)], [co1_17])).
% 3.05/1.09 thf(zip_derived_cl201, plain,
% 3.05/1.09 ((~ (neq @ sk4 @ nil) | (frontsegP @ sk4 @ sk5))),
% 3.05/1.09 inference('cnf', [status(esa)], [zf_stmt_9])).
% 3.05/1.09 thf(zip_derived_cl189, plain, (((sk2) = (sk4))),
% 3.05/1.09 inference('cnf', [status(esa)], [zf_stmt_1])).
% 3.05/1.09 thf(zip_derived_cl191, plain, ( (neq @ sk2 @ nil)),
% 3.05/1.09 inference('cnf', [status(esa)], [zf_stmt_2])).
% 3.05/1.09 thf(zip_derived_cl189, plain, (((sk2) = (sk4))),
% 3.05/1.09 inference('cnf', [status(esa)], [zf_stmt_1])).
% 3.05/1.09 thf(zip_derived_cl1441, plain, ( (frontsegP @ sk2 @ sk5)),
% 3.05/1.09 inference('demod', [status(thm)],
% 3.05/1.09 [zip_derived_cl201, zip_derived_cl189, zip_derived_cl191,
% 3.05/1.09 zip_derived_cl189])).
% 3.05/1.09 thf(zip_derived_cl2991, plain, ($false),
% 3.05/1.09 inference('demod', [status(thm)],
% 3.05/1.09 [zip_derived_cl2988, zip_derived_cl186, zip_derived_cl1434,
% 3.05/1.09 zip_derived_cl1441])).
% 3.05/1.09
% 3.05/1.09 % SZS output end Refutation
% 3.05/1.09
% 3.05/1.09
% 3.05/1.09 % Terminating...
% 3.69/1.16 % Runner terminated.
% 3.69/1.17 % Zipperpin 1.5 exiting
%------------------------------------------------------------------------------