TSTP Solution File: SWC018-1 by Zipperpin---2.1.9999

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Zipperpin---2.1.9999
% Problem  : SWC018-1 : 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.pcBzWQBREO true

% Computer : n028.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 21:28:32 EDT 2023

% Result   : Unsatisfiable 0.52s 0.79s
% Output   : Refutation 0.52s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.05/0.10  % Problem  : SWC018-1 : TPTP v8.1.2. Released v2.4.0.
% 0.11/0.12  % Command  : python3 /export/starexec/sandbox2/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox2/tmp/tmp.pcBzWQBREO true
% 0.11/0.32  % Computer : n028.cluster.edu
% 0.11/0.32  % Model    : x86_64 x86_64
% 0.11/0.32  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.11/0.32  % Memory   : 8042.1875MB
% 0.11/0.32  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.11/0.32  % CPULimit : 300
% 0.11/0.32  % WCLimit  : 300
% 0.11/0.32  % DateTime : Mon Aug 28 14:48:09 EDT 2023
% 0.11/0.32  % CPUTime  : 
% 0.11/0.32  % Running portfolio for 300 s
% 0.11/0.32  % File         : /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.11/0.32  % Number of cores: 8
% 0.11/0.32  % Python version: Python 3.6.8
% 0.11/0.33  % Running in FO mode
% 0.48/0.59  % Total configuration time : 435
% 0.48/0.59  % Estimated wc time : 1092
% 0.48/0.59  % Estimated cpu time (7 cpus) : 156.0
% 0.49/0.69  % /export/starexec/sandbox2/solver/bin/fo/fo6_bce.sh running for 75s
% 0.49/0.70  % /export/starexec/sandbox2/solver/bin/fo/fo1_av.sh running for 75s
% 0.49/0.70  % /export/starexec/sandbox2/solver/bin/fo/fo7.sh running for 63s
% 0.49/0.71  % /export/starexec/sandbox2/solver/bin/fo/fo3_bce.sh running for 75s
% 0.49/0.71  % /export/starexec/sandbox2/solver/bin/fo/fo13.sh running for 50s
% 0.49/0.71  % /export/starexec/sandbox2/solver/bin/fo/fo5.sh running for 50s
% 0.49/0.71  % /export/starexec/sandbox2/solver/bin/fo/fo4.sh running for 50s
% 0.52/0.79  % Solved by fo/fo7.sh.
% 0.52/0.79  % done 82 iterations in 0.059s
% 0.52/0.79  % SZS status Theorem for '/export/starexec/sandbox2/benchmark/theBenchmark.p'
% 0.52/0.79  % SZS output start Refutation
% 0.52/0.79  thf(nil_type, type, nil: $i).
% 0.52/0.79  thf(frontsegP_type, type, frontsegP: $i > $i > $o).
% 0.52/0.79  thf(sk2_type, type, sk2: $i).
% 0.52/0.79  thf(sk4_type, type, sk4: $i).
% 0.52/0.79  thf(sk5_type, type, sk5: $i).
% 0.52/0.79  thf(sk3_type, type, sk3: $i).
% 0.52/0.79  thf(neq_type, type, neq: $i > $i > $o).
% 0.52/0.79  thf(app_type, type, app: $i > $i > $i).
% 0.52/0.79  thf(ssList_type, type, ssList: $i > $o).
% 0.52/0.79  thf(sk1_type, type, sk1: $i).
% 0.52/0.79  thf(co1_14, conjecture, (~( ( neq @ sk2 @ nil ) | ( ( nil ) != ( sk1 ) ) ))).
% 0.52/0.79  thf(zf_stmt_0, negated_conjecture,
% 0.52/0.79    (( neq @ sk2 @ nil ) | ( ( nil ) != ( sk1 ) )),
% 0.52/0.79    inference('cnf.neg', [status(esa)], [co1_14])).
% 0.52/0.79  thf(zip_derived_cl42, plain, (( (neq @ sk2 @ nil) | ((nil) != (sk1)))),
% 0.52/0.79      inference('cnf', [status(esa)], [zf_stmt_0])).
% 0.52/0.79  thf(clause100, axiom,
% 0.52/0.79    (( ~( ssList @ U ) ) | ( ~( ssList @ V ) ) | ( neq @ V @ U ) | 
% 0.52/0.79     ( ( V ) = ( U ) ))).
% 0.52/0.79  thf(zip_derived_cl18, plain,
% 0.52/0.79      (![X0 : $i, X1 : $i]:
% 0.52/0.79         (~ (ssList @ X0) | ~ (ssList @ X1) |  (neq @ X1 @ X0) | ((X1) = (X0)))),
% 0.52/0.79      inference('cnf', [status(esa)], [clause100])).
% 0.52/0.79  thf(clause61, axiom, (( ~( ssList @ U ) ) | ( frontsegP @ U @ U ))).
% 0.52/0.79  thf(zip_derived_cl7, plain,
% 0.52/0.79      (![X0 : $i]: (~ (ssList @ X0) |  (frontsegP @ X0 @ X0))),
% 0.52/0.79      inference('cnf', [status(esa)], [clause61])).
% 0.52/0.79  thf(co1_13, conjecture,
% 0.52/0.79    (~( ( ~( frontsegP @ sk1 @ A ) ) | ( ~( frontsegP @ sk2 @ A ) ) | 
% 0.52/0.79        ( ~( neq @ A @ nil ) ) | ( ~( ssList @ A ) ) | ( ( nil ) = ( sk2 ) ) ))).
% 0.52/0.79  thf(zf_stmt_1, negated_conjecture,
% 0.52/0.79    (( ~( frontsegP @ sk1 @ A ) ) | ( ~( frontsegP @ sk2 @ A ) ) | 
% 0.52/0.79     ( ~( neq @ A @ nil ) ) | ( ~( ssList @ A ) ) | ( ( nil ) = ( sk2 ) )),
% 0.52/0.79    inference('cnf.neg', [status(esa)], [co1_13])).
% 0.52/0.79  thf(zip_derived_cl43, plain,
% 0.52/0.79      (![X0 : $i]:
% 0.52/0.79         (~ (frontsegP @ sk1 @ X0)
% 0.52/0.79          | ~ (frontsegP @ sk2 @ X0)
% 0.52/0.79          | ~ (neq @ X0 @ nil)
% 0.52/0.79          | ~ (ssList @ X0)
% 0.52/0.79          | ((nil) = (sk2)))),
% 0.52/0.79      inference('cnf', [status(esa)], [zf_stmt_1])).
% 0.52/0.79  thf(zip_derived_cl82, plain,
% 0.52/0.79      ((~ (ssList @ sk1)
% 0.52/0.79        | ((nil) = (sk2))
% 0.52/0.79        | ~ (ssList @ sk1)
% 0.52/0.79        | ~ (neq @ sk1 @ nil)
% 0.52/0.79        | ~ (frontsegP @ sk2 @ sk1))),
% 0.52/0.79      inference('sup-', [status(thm)], [zip_derived_cl7, zip_derived_cl43])).
% 0.52/0.79  thf(co1_3, conjecture, (~( ssList @ sk3 ))).
% 0.52/0.79  thf(zf_stmt_2, negated_conjecture, (ssList @ sk3),
% 0.52/0.79    inference('cnf.neg', [status(esa)], [co1_3])).
% 0.52/0.79  thf(zip_derived_cl53, plain, ( (ssList @ sk3)),
% 0.52/0.79      inference('cnf', [status(esa)], [zf_stmt_2])).
% 0.52/0.79  thf(co1_6, conjecture, (( sk1 ) != ( sk3 ))).
% 0.52/0.79  thf(zf_stmt_3, negated_conjecture, (( sk1 ) = ( sk3 )),
% 0.52/0.79    inference('cnf.neg', [status(esa)], [co1_6])).
% 0.52/0.79  thf(zip_derived_cl50, plain, (((sk1) = (sk3))),
% 0.52/0.79      inference('cnf', [status(esa)], [zf_stmt_3])).
% 0.52/0.79  thf(zip_derived_cl62, plain, ( (ssList @ sk1)),
% 0.52/0.79      inference('demod', [status(thm)], [zip_derived_cl53, zip_derived_cl50])).
% 0.52/0.79  thf(zip_derived_cl62, plain, ( (ssList @ sk1)),
% 0.52/0.79      inference('demod', [status(thm)], [zip_derived_cl53, zip_derived_cl50])).
% 0.52/0.79  thf(zip_derived_cl84, plain,
% 0.52/0.79      ((((nil) = (sk2)) | ~ (neq @ sk1 @ nil) | ~ (frontsegP @ sk2 @ sk1))),
% 0.52/0.79      inference('demod', [status(thm)],
% 0.52/0.79                [zip_derived_cl82, zip_derived_cl62, zip_derived_cl62])).
% 0.52/0.79  thf(zip_derived_cl123, plain,
% 0.52/0.79      ((((sk1) = (nil))
% 0.52/0.79        | ~ (ssList @ sk1)
% 0.52/0.79        | ~ (ssList @ nil)
% 0.52/0.79        | ~ (frontsegP @ sk2 @ sk1)
% 0.52/0.79        | ((nil) = (sk2)))),
% 0.52/0.79      inference('sup-', [status(thm)], [zip_derived_cl18, zip_derived_cl84])).
% 0.52/0.79  thf(zip_derived_cl62, plain, ( (ssList @ sk1)),
% 0.52/0.79      inference('demod', [status(thm)], [zip_derived_cl53, zip_derived_cl50])).
% 0.52/0.79  thf(clause8, axiom, (ssList @ nil)).
% 0.52/0.79  thf(zip_derived_cl1, plain, ( (ssList @ nil)),
% 0.52/0.79      inference('cnf', [status(esa)], [clause8])).
% 0.52/0.79  thf(zip_derived_cl127, plain,
% 0.52/0.79      ((((sk1) = (nil)) | ~ (frontsegP @ sk2 @ sk1) | ((nil) = (sk2)))),
% 0.52/0.79      inference('demod', [status(thm)],
% 0.52/0.79                [zip_derived_cl123, zip_derived_cl62, zip_derived_cl1])).
% 0.52/0.79  thf(co1_8, conjecture, (( app @ sk3 @ sk5 ) != ( sk4 ))).
% 0.52/0.79  thf(zf_stmt_4, negated_conjecture, (( app @ sk3 @ sk5 ) = ( sk4 )),
% 0.52/0.79    inference('cnf.neg', [status(esa)], [co1_8])).
% 0.52/0.79  thf(zip_derived_cl48, plain, (((app @ sk3 @ sk5) = (sk4))),
% 0.52/0.79      inference('cnf', [status(esa)], [zf_stmt_4])).
% 0.52/0.79  thf(zip_derived_cl50, plain, (((sk1) = (sk3))),
% 0.52/0.79      inference('cnf', [status(esa)], [zf_stmt_3])).
% 0.52/0.79  thf(co1_5, conjecture, (( sk2 ) != ( sk4 ))).
% 0.52/0.79  thf(zf_stmt_5, negated_conjecture, (( sk2 ) = ( sk4 )),
% 0.52/0.79    inference('cnf.neg', [status(esa)], [co1_5])).
% 0.52/0.79  thf(zip_derived_cl51, plain, (((sk2) = (sk4))),
% 0.52/0.79      inference('cnf', [status(esa)], [zf_stmt_5])).
% 0.52/0.79  thf(zip_derived_cl63, plain, (((app @ sk1 @ sk5) = (sk2))),
% 0.52/0.79      inference('demod', [status(thm)],
% 0.52/0.79                [zip_derived_cl48, zip_derived_cl50, zip_derived_cl51])).
% 0.52/0.79  thf(clause118, axiom,
% 0.52/0.79    (( ( app @ U @ V ) != ( nil ) ) | ( ~( ssList @ V ) ) | 
% 0.52/0.79     ( ~( ssList @ U ) ) | ( ( nil ) = ( U ) ))).
% 0.52/0.79  thf(zip_derived_cl22, plain,
% 0.52/0.79      (![X0 : $i, X1 : $i]:
% 0.52/0.79         (((app @ X0 @ X1) != (nil))
% 0.52/0.79          | ~ (ssList @ X1)
% 0.52/0.79          | ~ (ssList @ X0)
% 0.52/0.79          | ((nil) = (X0)))),
% 0.52/0.79      inference('cnf', [status(esa)], [clause118])).
% 0.52/0.79  thf(zip_derived_cl69, plain,
% 0.52/0.79      ((((sk2) != (nil))
% 0.52/0.79        | ((nil) = (sk1))
% 0.52/0.79        | ~ (ssList @ sk1)
% 0.52/0.79        | ~ (ssList @ sk5))),
% 0.52/0.79      inference('sup-', [status(thm)], [zip_derived_cl63, zip_derived_cl22])).
% 0.52/0.79  thf(zip_derived_cl62, plain, ( (ssList @ sk1)),
% 0.52/0.79      inference('demod', [status(thm)], [zip_derived_cl53, zip_derived_cl50])).
% 0.52/0.79  thf(co1_7, conjecture, (~( ssList @ sk5 ))).
% 0.52/0.79  thf(zf_stmt_6, negated_conjecture, (ssList @ sk5),
% 0.52/0.79    inference('cnf.neg', [status(esa)], [co1_7])).
% 0.52/0.79  thf(zip_derived_cl49, plain, ( (ssList @ sk5)),
% 0.52/0.79      inference('cnf', [status(esa)], [zf_stmt_6])).
% 0.52/0.79  thf(zip_derived_cl70, plain, ((((sk2) != (nil)) | ((nil) = (sk1)))),
% 0.52/0.79      inference('demod', [status(thm)],
% 0.52/0.79                [zip_derived_cl69, zip_derived_cl62, zip_derived_cl49])).
% 0.52/0.79  thf(zip_derived_cl134, plain,
% 0.52/0.79      ((~ (frontsegP @ sk2 @ sk1) | ((sk1) = (nil)))),
% 0.52/0.79      inference('clc', [status(thm)], [zip_derived_cl127, zip_derived_cl70])).
% 0.52/0.79  thf(zip_derived_cl63, plain, (((app @ sk1 @ sk5) = (sk2))),
% 0.52/0.79      inference('demod', [status(thm)],
% 0.52/0.79                [zip_derived_cl48, zip_derived_cl50, zip_derived_cl51])).
% 0.52/0.79  thf(clause144, axiom,
% 0.52/0.79    (( ( app @ U @ V ) != ( W ) ) | ( ~( ssList @ V ) ) | 
% 0.52/0.79     ( ~( ssList @ U ) ) | ( ~( ssList @ W ) ) | ( frontsegP @ W @ U ))).
% 0.52/0.79  thf(zip_derived_cl28, plain,
% 0.52/0.79      (![X0 : $i, X1 : $i, X2 : $i]:
% 0.52/0.79         (((app @ X1 @ X2) != (X0))
% 0.52/0.79          | ~ (ssList @ X2)
% 0.52/0.79          | ~ (ssList @ X1)
% 0.52/0.79          | ~ (ssList @ X0)
% 0.52/0.79          |  (frontsegP @ X0 @ X1))),
% 0.52/0.79      inference('cnf', [status(esa)], [clause144])).
% 0.52/0.79  thf(zip_derived_cl138, plain,
% 0.52/0.79      (![X0 : $i]:
% 0.52/0.79         (((sk2) != (X0))
% 0.52/0.79          |  (frontsegP @ X0 @ sk1)
% 0.52/0.79          | ~ (ssList @ X0)
% 0.52/0.79          | ~ (ssList @ sk1)
% 0.52/0.79          | ~ (ssList @ sk5))),
% 0.52/0.79      inference('sup-', [status(thm)], [zip_derived_cl63, zip_derived_cl28])).
% 0.52/0.79  thf(zip_derived_cl62, plain, ( (ssList @ sk1)),
% 0.52/0.79      inference('demod', [status(thm)], [zip_derived_cl53, zip_derived_cl50])).
% 0.52/0.79  thf(zip_derived_cl49, plain, ( (ssList @ sk5)),
% 0.52/0.79      inference('cnf', [status(esa)], [zf_stmt_6])).
% 0.52/0.79  thf(zip_derived_cl145, plain,
% 0.52/0.79      (![X0 : $i]:
% 0.52/0.79         (((sk2) != (X0)) |  (frontsegP @ X0 @ sk1) | ~ (ssList @ X0))),
% 0.52/0.79      inference('demod', [status(thm)],
% 0.52/0.79                [zip_derived_cl138, zip_derived_cl62, zip_derived_cl49])).
% 0.52/0.79  thf(zip_derived_cl146, plain,
% 0.52/0.79      ((~ (ssList @ sk2) |  (frontsegP @ sk2 @ sk1))),
% 0.52/0.79      inference('eq_res', [status(thm)], [zip_derived_cl145])).
% 0.52/0.79  thf(co1_4, conjecture, (~( ssList @ sk4 ))).
% 0.52/0.79  thf(zf_stmt_7, negated_conjecture, (ssList @ sk4),
% 0.52/0.79    inference('cnf.neg', [status(esa)], [co1_4])).
% 0.52/0.79  thf(zip_derived_cl52, plain, ( (ssList @ sk4)),
% 0.52/0.79      inference('cnf', [status(esa)], [zf_stmt_7])).
% 0.52/0.79  thf(zip_derived_cl51, plain, (((sk2) = (sk4))),
% 0.52/0.79      inference('cnf', [status(esa)], [zf_stmt_5])).
% 0.52/0.79  thf(zip_derived_cl61, plain, ( (ssList @ sk2)),
% 0.52/0.79      inference('demod', [status(thm)], [zip_derived_cl52, zip_derived_cl51])).
% 0.52/0.79  thf(zip_derived_cl147, plain, ( (frontsegP @ sk2 @ sk1)),
% 0.52/0.79      inference('demod', [status(thm)], [zip_derived_cl146, zip_derived_cl61])).
% 0.52/0.79  thf(zip_derived_cl154, plain, (((sk1) = (nil))),
% 0.52/0.79      inference('demod', [status(thm)], [zip_derived_cl134, zip_derived_cl147])).
% 0.52/0.79  thf(zip_derived_cl159, plain, (( (neq @ sk2 @ nil) | ((nil) != (nil)))),
% 0.52/0.79      inference('demod', [status(thm)], [zip_derived_cl42, zip_derived_cl154])).
% 0.52/0.79  thf(zip_derived_cl160, plain, ( (neq @ sk2 @ nil)),
% 0.52/0.79      inference('simplify', [status(thm)], [zip_derived_cl159])).
% 0.52/0.79  thf(zip_derived_cl51, plain, (((sk2) = (sk4))),
% 0.52/0.79      inference('cnf', [status(esa)], [zf_stmt_5])).
% 0.52/0.79  thf(co1_11, conjecture,
% 0.52/0.79    (~( ( ( nil ) != ( sk3 ) ) | ( ( nil ) = ( sk4 ) ) ))).
% 0.52/0.79  thf(zf_stmt_8, negated_conjecture,
% 0.52/0.79    (( ( nil ) != ( sk3 ) ) | ( ( nil ) = ( sk4 ) )),
% 0.52/0.79    inference('cnf.neg', [status(esa)], [co1_11])).
% 0.52/0.79  thf(zip_derived_cl45, plain, ((((nil) != (sk3)) | ((nil) = (sk4)))),
% 0.52/0.79      inference('cnf', [status(esa)], [zf_stmt_8])).
% 0.52/0.79  thf(zip_derived_cl50, plain, (((sk1) = (sk3))),
% 0.52/0.79      inference('cnf', [status(esa)], [zf_stmt_3])).
% 0.52/0.79  thf(zip_derived_cl59, plain, ((((nil) != (sk1)) | ((nil) = (sk4)))),
% 0.52/0.79      inference('demod', [status(thm)], [zip_derived_cl45, zip_derived_cl50])).
% 0.52/0.79  thf(zip_derived_cl154, plain, (((sk1) = (nil))),
% 0.52/0.79      inference('demod', [status(thm)], [zip_derived_cl134, zip_derived_cl147])).
% 0.52/0.79  thf(zip_derived_cl165, plain, ((((nil) != (nil)) | ((nil) = (sk4)))),
% 0.52/0.79      inference('demod', [status(thm)], [zip_derived_cl59, zip_derived_cl154])).
% 0.52/0.79  thf(zip_derived_cl166, plain, (((nil) = (sk4))),
% 0.52/0.79      inference('simplify', [status(thm)], [zip_derived_cl165])).
% 0.52/0.79  thf(zip_derived_cl179, plain, (((sk2) = (nil))),
% 0.52/0.79      inference('demod', [status(thm)], [zip_derived_cl51, zip_derived_cl166])).
% 0.52/0.79  thf(zip_derived_cl7, plain,
% 0.52/0.79      (![X0 : $i]: (~ (ssList @ X0) |  (frontsegP @ X0 @ X0))),
% 0.52/0.79      inference('cnf', [status(esa)], [clause61])).
% 0.52/0.79  thf(co1_15, conjecture,
% 0.52/0.79    (~( ( ~( frontsegP @ sk1 @ A ) ) | ( ~( frontsegP @ sk2 @ A ) ) | 
% 0.52/0.79        ( ~( neq @ A @ nil ) ) | ( ~( ssList @ A ) ) | ( ( nil ) != ( sk1 ) ) ))).
% 0.52/0.79  thf(zf_stmt_9, negated_conjecture,
% 0.52/0.79    (( ~( frontsegP @ sk1 @ A ) ) | ( ~( frontsegP @ sk2 @ A ) ) | 
% 0.52/0.79     ( ~( neq @ A @ nil ) ) | ( ~( ssList @ A ) ) | ( ( nil ) != ( sk1 ) )),
% 0.52/0.79    inference('cnf.neg', [status(esa)], [co1_15])).
% 0.52/0.79  thf(zip_derived_cl41, plain,
% 0.52/0.79      (![X0 : $i]:
% 0.52/0.79         (~ (frontsegP @ sk1 @ X0)
% 0.52/0.79          | ~ (frontsegP @ sk2 @ X0)
% 0.52/0.79          | ~ (neq @ X0 @ nil)
% 0.52/0.79          | ~ (ssList @ X0)
% 0.52/0.79          | ((nil) != (sk1)))),
% 0.52/0.79      inference('cnf', [status(esa)], [zf_stmt_9])).
% 0.52/0.79  thf(zip_derived_cl56, plain,
% 0.52/0.79      (![X0 : $i]:
% 0.52/0.79         (~ (frontsegP @ nil @ X0)
% 0.52/0.79          | ~ (frontsegP @ sk2 @ X0)
% 0.52/0.79          | ~ (neq @ X0 @ nil)
% 0.52/0.79          | ~ (ssList @ X0)
% 0.52/0.79          | ((nil) != (sk1)))),
% 0.52/0.79      inference('local_rewriting', [status(thm)], [zip_derived_cl41])).
% 0.52/0.79  thf(zip_derived_cl154, plain, (((sk1) = (nil))),
% 0.52/0.79      inference('demod', [status(thm)], [zip_derived_cl134, zip_derived_cl147])).
% 0.52/0.79  thf(zip_derived_cl163, plain,
% 0.52/0.79      (![X0 : $i]:
% 0.52/0.79         (~ (frontsegP @ nil @ X0)
% 0.52/0.79          | ~ (frontsegP @ sk2 @ X0)
% 0.52/0.79          | ~ (neq @ X0 @ nil)
% 0.52/0.79          | ~ (ssList @ X0)
% 0.52/0.79          | ((nil) != (nil)))),
% 0.52/0.79      inference('demod', [status(thm)], [zip_derived_cl56, zip_derived_cl154])).
% 0.52/0.79  thf(zip_derived_cl164, plain,
% 0.52/0.79      (![X0 : $i]:
% 0.52/0.79         (~ (ssList @ X0)
% 0.52/0.79          | ~ (neq @ X0 @ nil)
% 0.52/0.79          | ~ (frontsegP @ sk2 @ X0)
% 0.52/0.79          | ~ (frontsegP @ nil @ X0))),
% 0.52/0.79      inference('simplify', [status(thm)], [zip_derived_cl163])).
% 0.52/0.79  thf(zip_derived_cl179, plain, (((sk2) = (nil))),
% 0.52/0.79      inference('demod', [status(thm)], [zip_derived_cl51, zip_derived_cl166])).
% 0.52/0.79  thf(zip_derived_cl195, plain,
% 0.52/0.79      (![X0 : $i]:
% 0.52/0.79         (~ (ssList @ X0)
% 0.52/0.79          | ~ (neq @ X0 @ nil)
% 0.52/0.79          | ~ (frontsegP @ nil @ X0)
% 0.52/0.79          | ~ (frontsegP @ nil @ X0))),
% 0.52/0.79      inference('demod', [status(thm)], [zip_derived_cl164, zip_derived_cl179])).
% 0.52/0.79  thf(zip_derived_cl196, plain,
% 0.52/0.79      (![X0 : $i]:
% 0.52/0.79         (~ (frontsegP @ nil @ X0) | ~ (neq @ X0 @ nil) | ~ (ssList @ X0))),
% 0.52/0.79      inference('simplify', [status(thm)], [zip_derived_cl195])).
% 0.52/0.79  thf(zip_derived_cl197, plain,
% 0.52/0.79      ((~ (ssList @ nil) | ~ (ssList @ nil) | ~ (neq @ nil @ nil))),
% 0.52/0.79      inference('sup-', [status(thm)], [zip_derived_cl7, zip_derived_cl196])).
% 0.52/0.79  thf(zip_derived_cl1, plain, ( (ssList @ nil)),
% 0.52/0.79      inference('cnf', [status(esa)], [clause8])).
% 0.52/0.79  thf(zip_derived_cl1, plain, ( (ssList @ nil)),
% 0.52/0.79      inference('cnf', [status(esa)], [clause8])).
% 0.52/0.79  thf(zip_derived_cl200, plain, (~ (neq @ nil @ nil)),
% 0.52/0.79      inference('demod', [status(thm)],
% 0.52/0.79                [zip_derived_cl197, zip_derived_cl1, zip_derived_cl1])).
% 0.52/0.79  thf(zip_derived_cl216, plain, ($false),
% 0.52/0.79      inference('demod', [status(thm)],
% 0.52/0.79                [zip_derived_cl160, zip_derived_cl179, zip_derived_cl200])).
% 0.52/0.79  
% 0.52/0.79  % SZS output end Refutation
% 0.52/0.79  
% 0.52/0.79  
% 0.52/0.79  % Terminating...
% 1.60/0.92  % Runner terminated.
% 1.60/0.93  % Zipperpin 1.5 exiting
%------------------------------------------------------------------------------