%------------------------------------------------------------------------------
% File : Zipperpin---2.1.9999
% Problem : SWC336-1 : 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.M2uum8NOsM true
% Computer : n023.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 04:59:25 PM UTC 2025
% Result : Unsatisfiable 0.54s 0.86s
% Output : Refutation 0.54s
% Verified :
% SZS Type : -
% Comments :
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.06/0.11 % Problem : SWC336-1 : TPTP v9.2.0. Released v2.4.0.
% 0.06/0.12 % Command : python3 /export/starexec/sandbox2/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox2/tmp/tmp.M2uum8NOsM true
% 0.12/0.33 % Computer : n023.cluster.edu
% 0.12/0.33 % Model : x86_64 x86_64
% 0.12/0.33 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.33 % Memory : 8042.1875MB
% 0.12/0.33 % OS : Linux 3.10.0-693.el7.x86_64
% 0.12/0.33 % CPULimit : 300
% 0.12/0.33 % WCLimit : 300
% 0.12/0.33 % DateTime : Wed Oct 1 17:09:53 EDT 2025
% 0.12/0.34 % CPUTime :
% 0.12/0.34 % Running portfolio for 300 s
% 0.12/0.34 % File : /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.12/0.34 % Number of cores: 8
% 0.12/0.34 % Python version: Python 3.6.8
% 0.12/0.34 % Running in FO mode
% 0.44/0.61 % Total configuration time : 435
% 0.44/0.61 % Estimated wc time : 1092
% 0.44/0.61 % Estimated cpu time (7 cpus) : 156.0
% 0.53/0.69 % /export/starexec/sandbox2/solver/bin/fo/fo6_bce.sh running for 75s
% 0.53/0.69 % /export/starexec/sandbox2/solver/bin/fo/fo3_bce.sh running for 75s
% 0.53/0.72 % /export/starexec/sandbox2/solver/bin/fo/fo1_av.sh running for 75s
% 0.53/0.72 % /export/starexec/sandbox2/solver/bin/fo/fo7.sh running for 63s
% 0.53/0.73 % /export/starexec/sandbox2/solver/bin/fo/fo5.sh running for 50s
% 0.53/0.74 % /export/starexec/sandbox2/solver/bin/fo/fo13.sh running for 50s
% 0.53/0.74 % /export/starexec/sandbox2/solver/bin/fo/fo4.sh running for 50s
% 0.54/0.86 % Solved by fo/fo7.sh.
% 0.54/0.86 % done 240 iterations in 0.108s
% 0.54/0.86 % SZS status Theorem for '/export/starexec/sandbox2/benchmark/theBenchmark.p'
% 0.54/0.86 % SZS output start Refutation
% 0.54/0.86 thf(totalorderedP_type, type, totalorderedP: $i > $o).
% 0.54/0.86 thf(nil_type, type, nil: $i).
% 0.54/0.86 thf(cons_type, type, cons: $i > $i > $i).
% 0.54/0.86 thf(sk2_type, type, sk2: $i).
% 0.54/0.86 thf(sk6_type, type, sk6: $i).
% 0.54/0.86 thf(sk4_type, type, sk4: $i).
% 0.54/0.86 thf(ssItem_type, type, ssItem: $i > $o).
% 0.54/0.86 thf(sk5_type, type, sk5: $i).
% 0.54/0.86 thf(sk3_type, type, sk3: $i).
% 0.54/0.86 thf(app_type, type, app: $i > $i > $i).
% 0.54/0.86 thf(ssList_type, type, ssList: $i > $o).
% 0.54/0.86 thf(sk7_type, type, sk7: $i).
% 0.54/0.86 thf(sk1_type, type, sk1: $i).
% 0.54/0.86 thf(segmentP_type, type, segmentP: $i > $i > $o).
% 0.54/0.86 thf(clause57, axiom, (( ~( ssList @ U ) ) | ( segmentP @ U @ U ))).
% 0.54/0.86 thf(zip_derived_cl7, plain,
% 0.54/0.86 (![X0 : $i]: (~ (ssList @ X0) | (segmentP @ X0 @ X0))),
% 0.54/0.86 inference('cnf', [status(esa)], [clause57])).
% 0.54/0.86 thf(co1_21, conjecture,
% 0.54/0.86 (~( ( ~( totalorderedP @ sk1 ) ) | ( ~( segmentP @ sk2 @ sk1 ) ) ))).
% 0.54/0.86 thf(zf_stmt_0, negated_conjecture,
% 0.54/0.86 (( ~( totalorderedP @ sk1 ) ) | ( ~( segmentP @ sk2 @ sk1 ) )),
% 0.54/0.86 inference('cnf.neg', [status(esa)], [co1_21])).
% 0.54/0.86 thf(zip_derived_cl75, plain,
% 0.54/0.86 ((~ (totalorderedP @ sk1) | ~ (segmentP @ sk2 @ sk1))),
% 0.54/0.86 inference('cnf', [status(esa)], [zf_stmt_0])).
% 0.54/0.86 thf(co1_18, conjecture,
% 0.54/0.86 (~( ( ( nil ) = ( sk3 ) ) |
% 0.54/0.86 ( ( app @ ( app @ sk6 @ sk3 ) @ sk7 ) = ( sk4 ) ) ))).
% 0.54/0.86 thf(zf_stmt_1, negated_conjecture,
% 0.54/0.86 (( ( nil ) = ( sk3 ) ) | ( ( app @ ( app @ sk6 @ sk3 ) @ sk7 ) = ( sk4 ) )),
% 0.54/0.86 inference('cnf.neg', [status(esa)], [co1_18])).
% 0.54/0.86 thf(zip_derived_cl78, plain,
% 0.54/0.86 ((((nil) = (sk3)) | ((app @ (app @ sk6 @ sk3) @ sk7) = (sk4)))),
% 0.54/0.86 inference('cnf', [status(esa)], [zf_stmt_1])).
% 0.54/0.86 thf(co1_6, conjecture, (( sk1 ) != ( sk3 ))).
% 0.54/0.86 thf(zf_stmt_2, negated_conjecture, (( sk1 ) = ( sk3 )),
% 0.54/0.86 inference('cnf.neg', [status(esa)], [co1_6])).
% 0.54/0.86 thf(zip_derived_cl90, plain, (((sk1) = (sk3))),
% 0.54/0.86 inference('cnf', [status(esa)], [zf_stmt_2])).
% 0.54/0.86 thf(zip_derived_cl90, plain, (((sk1) = (sk3))),
% 0.54/0.86 inference('cnf', [status(esa)], [zf_stmt_2])).
% 0.54/0.86 thf(co1_5, conjecture, (( sk2 ) != ( sk4 ))).
% 0.54/0.86 thf(zf_stmt_3, negated_conjecture, (( sk2 ) = ( sk4 )),
% 0.54/0.86 inference('cnf.neg', [status(esa)], [co1_5])).
% 0.54/0.86 thf(zip_derived_cl91, plain, (((sk2) = (sk4))),
% 0.54/0.86 inference('cnf', [status(esa)], [zf_stmt_3])).
% 0.54/0.86 thf(zip_derived_cl132, plain,
% 0.54/0.86 ((((nil) = (sk1)) | ((app @ (app @ sk6 @ sk1) @ sk7) = (sk2)))),
% 0.54/0.86 inference('demod', [status(thm)],
% 0.54/0.86 [zip_derived_cl78, zip_derived_cl90, zip_derived_cl90,
% 0.54/0.86 zip_derived_cl91])).
% 0.54/0.86 thf(clause173, axiom,
% 0.54/0.86 (( ( app @ ( app @ U @ V ) @ W ) != ( X ) ) | ( ~( ssList @ W ) ) |
% 0.54/0.86 ( ~( ssList @ U ) ) | ( ~( ssList @ V ) ) | ( ~( ssList @ X ) ) |
% 0.54/0.86 ( segmentP @ X @ V ))).
% 0.54/0.86 thf(zip_derived_cl69, plain,
% 0.54/0.86 (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 0.54/0.86 (((app @ (app @ X1 @ X2) @ X3) != (X0))
% 0.54/0.86 | ~ (ssList @ X3)
% 0.54/0.86 | ~ (ssList @ X1)
% 0.54/0.86 | ~ (ssList @ X2)
% 0.54/0.86 | ~ (ssList @ X0)
% 0.54/0.86 | (segmentP @ X0 @ X2))),
% 0.54/0.86 inference('cnf', [status(esa)], [clause173])).
% 0.54/0.86 thf(zip_derived_cl709, plain,
% 0.54/0.86 (![X0 : $i]:
% 0.54/0.86 (((sk2) != (X0))
% 0.54/0.86 | ((nil) = (sk1))
% 0.54/0.86 | (segmentP @ X0 @ sk1)
% 0.54/0.86 | ~ (ssList @ X0)
% 0.54/0.86 | ~ (ssList @ sk1)
% 0.54/0.86 | ~ (ssList @ sk6)
% 0.54/0.86 | ~ (ssList @ sk7))),
% 0.54/0.86 inference('sup-', [status(thm)], [zip_derived_cl132, zip_derived_cl69])).
% 0.54/0.86 thf(co1_3, conjecture, (~( ssList @ sk3 ))).
% 0.54/0.86 thf(zf_stmt_4, negated_conjecture, (ssList @ sk3),
% 0.54/0.86 inference('cnf.neg', [status(esa)], [co1_3])).
% 0.54/0.86 thf(zip_derived_cl93, plain, ( (ssList @ sk3)),
% 0.54/0.86 inference('cnf', [status(esa)], [zf_stmt_4])).
% 0.54/0.86 thf(zip_derived_cl90, plain, (((sk1) = (sk3))),
% 0.54/0.86 inference('cnf', [status(esa)], [zf_stmt_2])).
% 0.54/0.86 thf(zip_derived_cl97, plain, ( (ssList @ sk1)),
% 0.54/0.86 inference('demod', [status(thm)], [zip_derived_cl93, zip_derived_cl90])).
% 0.54/0.86 thf(zip_derived_cl717, plain,
% 0.54/0.86 (![X0 : $i]:
% 0.54/0.86 (((sk2) != (X0))
% 0.54/0.86 | ((nil) = (sk1))
% 0.54/0.86 | (segmentP @ X0 @ sk1)
% 0.54/0.86 | ~ (ssList @ X0)
% 0.54/0.86 | ~ (ssList @ sk6)
% 0.54/0.86 | ~ (ssList @ sk7))),
% 0.54/0.86 inference('demod', [status(thm)], [zip_derived_cl709, zip_derived_cl97])).
% 0.54/0.86 thf(co1_15, conjecture, (~( ( ( nil ) = ( sk3 ) ) | ( ssList @ sk6 ) ))).
% 0.54/0.86 thf(zf_stmt_5, negated_conjecture,
% 0.54/0.86 (( ( nil ) = ( sk3 ) ) | ( ssList @ sk6 )),
% 0.54/0.86 inference('cnf.neg', [status(esa)], [co1_15])).
% 0.54/0.86 thf(zip_derived_cl81, plain, ((((nil) = (sk3)) | (ssList @ sk6))),
% 0.54/0.86 inference('cnf', [status(esa)], [zf_stmt_5])).
% 0.54/0.86 thf(zip_derived_cl90, plain, (((sk1) = (sk3))),
% 0.54/0.86 inference('cnf', [status(esa)], [zf_stmt_2])).
% 0.54/0.86 thf(zip_derived_cl99, plain, ((((nil) = (sk1)) | (ssList @ sk6))),
% 0.54/0.86 inference('demod', [status(thm)], [zip_derived_cl81, zip_derived_cl90])).
% 0.54/0.86 thf(zip_derived_cl784, plain,
% 0.54/0.86 (![X0 : $i]:
% 0.54/0.86 (~ (ssList @ sk7)
% 0.54/0.86 | ~ (ssList @ X0)
% 0.54/0.86 | (segmentP @ X0 @ sk1)
% 0.54/0.86 | ((nil) = (sk1))
% 0.54/0.86 | ((sk2) != (X0)))),
% 0.54/0.86 inference('clc', [status(thm)], [zip_derived_cl717, zip_derived_cl99])).
% 0.54/0.86 thf(co1_16, conjecture, (~( ( ( nil ) = ( sk3 ) ) | ( ssList @ sk7 ) ))).
% 0.54/0.86 thf(zf_stmt_6, negated_conjecture,
% 0.54/0.86 (( ( nil ) = ( sk3 ) ) | ( ssList @ sk7 )),
% 0.54/0.86 inference('cnf.neg', [status(esa)], [co1_16])).
% 0.54/0.86 thf(zip_derived_cl80, plain, ((((nil) = (sk3)) | (ssList @ sk7))),
% 0.54/0.86 inference('cnf', [status(esa)], [zf_stmt_6])).
% 0.54/0.86 thf(zip_derived_cl90, plain, (((sk1) = (sk3))),
% 0.54/0.86 inference('cnf', [status(esa)], [zf_stmt_2])).
% 0.54/0.86 thf(zip_derived_cl98, plain, ((((nil) = (sk1)) | (ssList @ sk7))),
% 0.54/0.86 inference('demod', [status(thm)], [zip_derived_cl80, zip_derived_cl90])).
% 0.54/0.86 thf(zip_derived_cl785, plain,
% 0.54/0.86 (![X0 : $i]:
% 0.54/0.86 (((sk2) != (X0))
% 0.54/0.86 | ((nil) = (sk1))
% 0.54/0.86 | (segmentP @ X0 @ sk1)
% 0.54/0.86 | ~ (ssList @ X0))),
% 0.54/0.86 inference('clc', [status(thm)], [zip_derived_cl784, zip_derived_cl98])).
% 0.54/0.86 thf(zip_derived_cl793, plain,
% 0.54/0.86 ((~ (ssList @ sk2) | (segmentP @ sk2 @ sk1) | ((nil) = (sk1)))),
% 0.54/0.86 inference('eq_res', [status(thm)], [zip_derived_cl785])).
% 0.54/0.86 thf(co1_4, conjecture, (~( ssList @ sk4 ))).
% 0.54/0.86 thf(zf_stmt_7, negated_conjecture, (ssList @ sk4),
% 0.54/0.86 inference('cnf.neg', [status(esa)], [co1_4])).
% 0.54/0.86 thf(zip_derived_cl92, plain, ( (ssList @ sk4)),
% 0.54/0.86 inference('cnf', [status(esa)], [zf_stmt_7])).
% 0.54/0.86 thf(zip_derived_cl91, plain, (((sk2) = (sk4))),
% 0.54/0.86 inference('cnf', [status(esa)], [zf_stmt_3])).
% 0.54/0.86 thf(zip_derived_cl96, plain, ( (ssList @ sk2)),
% 0.54/0.86 inference('demod', [status(thm)], [zip_derived_cl92, zip_derived_cl91])).
% 0.54/0.86 thf(zip_derived_cl794, plain, (( (segmentP @ sk2 @ sk1) | ((nil) = (sk1)))),
% 0.54/0.86 inference('demod', [status(thm)], [zip_derived_cl793, zip_derived_cl96])).
% 0.54/0.86 thf(co1_17, conjecture,
% 0.54/0.86 (~( ( ( nil ) = ( sk3 ) ) | ( ( cons @ sk5 @ nil ) = ( sk3 ) ) ))).
% 0.54/0.86 thf(zf_stmt_8, negated_conjecture,
% 0.54/0.86 (( ( nil ) = ( sk3 ) ) | ( ( cons @ sk5 @ nil ) = ( sk3 ) )),
% 0.54/0.86 inference('cnf.neg', [status(esa)], [co1_17])).
% 0.54/0.86 thf(zip_derived_cl79, plain,
% 0.54/0.86 ((((nil) = (sk3)) | ((cons @ sk5 @ nil) = (sk3)))),
% 0.54/0.86 inference('cnf', [status(esa)], [zf_stmt_8])).
% 0.54/0.86 thf(zip_derived_cl90, plain, (((sk1) = (sk3))),
% 0.54/0.86 inference('cnf', [status(esa)], [zf_stmt_2])).
% 0.54/0.86 thf(zip_derived_cl90, plain, (((sk1) = (sk3))),
% 0.54/0.86 inference('cnf', [status(esa)], [zf_stmt_2])).
% 0.54/0.86 thf(zip_derived_cl125, plain,
% 0.54/0.86 ((((nil) = (sk1)) | ((cons @ sk5 @ nil) = (sk1)))),
% 0.54/0.87 inference('demod', [status(thm)],
% 0.54/0.87 [zip_derived_cl79, zip_derived_cl90, zip_derived_cl90])).
% 0.54/0.87 thf(clause67, axiom,
% 0.54/0.87 (( ~( ssItem @ U ) ) | ( totalorderedP @ ( cons @ U @ nil ) ))).
% 0.54/0.87 thf(zip_derived_cl11, plain,
% 0.54/0.87 (![X0 : $i]: (~ (ssItem @ X0) | (totalorderedP @ (cons @ X0 @ nil)))),
% 0.54/0.87 inference('cnf', [status(esa)], [clause67])).
% 0.54/0.87 thf(zip_derived_cl215, plain,
% 0.54/0.87 (( (totalorderedP @ sk1) | ((nil) = (sk1)) | ~ (ssItem @ sk5))),
% 0.54/0.87 inference('sup+', [status(thm)], [zip_derived_cl125, zip_derived_cl11])).
% 0.54/0.87 thf(co1_8, conjecture, (~( ( ( nil ) = ( sk3 ) ) | ( ssItem @ sk5 ) ))).
% 0.54/0.87 thf(zf_stmt_9, negated_conjecture,
% 0.54/0.87 (( ( nil ) = ( sk3 ) ) | ( ssItem @ sk5 )),
% 0.54/0.87 inference('cnf.neg', [status(esa)], [co1_8])).
% 0.54/0.87 thf(zip_derived_cl88, plain, ((((nil) = (sk3)) | (ssItem @ sk5))),
% 0.54/0.87 inference('cnf', [status(esa)], [zf_stmt_9])).
% 0.54/0.87 thf(zip_derived_cl90, plain, (((sk1) = (sk3))),
% 0.54/0.87 inference('cnf', [status(esa)], [zf_stmt_2])).
% 0.54/0.87 thf(zip_derived_cl102, plain, ((((nil) = (sk1)) | (ssItem @ sk5))),
% 0.54/0.87 inference('demod', [status(thm)], [zip_derived_cl88, zip_derived_cl90])).
% 0.54/0.87 thf(zip_derived_cl221, plain, ((((nil) = (sk1)) | (totalorderedP @ sk1))),
% 0.54/0.87 inference('clc', [status(thm)], [zip_derived_cl215, zip_derived_cl102])).
% 0.54/0.87 thf(zip_derived_cl75, plain,
% 0.54/0.87 ((~ (totalorderedP @ sk1) | ~ (segmentP @ sk2 @ sk1))),
% 0.54/0.87 inference('cnf', [status(esa)], [zf_stmt_0])).
% 0.54/0.87 thf(zip_derived_cl222, plain, ((((nil) = (sk1)) | ~ (segmentP @ sk2 @ sk1))),
% 0.54/0.87 inference('sup-', [status(thm)], [zip_derived_cl221, zip_derived_cl75])).
% 0.54/0.87 thf(zip_derived_cl825, plain, (((nil) = (sk1))),
% 0.54/0.87 inference('clc', [status(thm)], [zip_derived_cl794, zip_derived_cl222])).
% 0.54/0.87 thf(clause4, axiom, (totalorderedP @ nil)).
% 0.54/0.87 thf(zip_derived_cl1, plain, ( (totalorderedP @ nil)),
% 0.54/0.87 inference('cnf', [status(esa)], [clause4])).
% 0.54/0.87 thf(zip_derived_cl825, plain, (((nil) = (sk1))),
% 0.54/0.87 inference('clc', [status(thm)], [zip_derived_cl794, zip_derived_cl222])).
% 0.54/0.87 thf(zip_derived_cl826, plain, (~ (segmentP @ sk2 @ nil)),
% 0.54/0.87 inference('demod', [status(thm)],
% 0.54/0.87 [zip_derived_cl75, zip_derived_cl825, zip_derived_cl1,
% 0.54/0.87 zip_derived_cl825])).
% 0.54/0.87 thf(co1_11, conjecture,
% 0.54/0.87 (~( ( ( nil ) = ( sk4 ) ) | ( ( cons @ sk5 @ nil ) = ( sk3 ) ) ))).
% 0.54/0.87 thf(zf_stmt_10, negated_conjecture,
% 0.54/0.87 (( ( nil ) = ( sk4 ) ) | ( ( cons @ sk5 @ nil ) = ( sk3 ) )),
% 0.54/0.87 inference('cnf.neg', [status(esa)], [co1_11])).
% 0.54/0.87 thf(zip_derived_cl85, plain,
% 0.54/0.87 ((((nil) = (sk4)) | ((cons @ sk5 @ nil) = (sk3)))),
% 0.54/0.87 inference('cnf', [status(esa)], [zf_stmt_10])).
% 0.54/0.87 thf(zip_derived_cl91, plain, (((sk2) = (sk4))),
% 0.54/0.87 inference('cnf', [status(esa)], [zf_stmt_3])).
% 0.54/0.87 thf(zip_derived_cl90, plain, (((sk1) = (sk3))),
% 0.54/0.87 inference('cnf', [status(esa)], [zf_stmt_2])).
% 0.54/0.87 thf(zip_derived_cl108, plain,
% 0.54/0.87 ((((nil) = (sk2)) | ((cons @ sk5 @ nil) = (sk1)))),
% 0.54/0.87 inference('demod', [status(thm)],
% 0.54/0.87 [zip_derived_cl85, zip_derived_cl91, zip_derived_cl90])).
% 0.54/0.87 thf(clause98, axiom,
% 0.54/0.87 (( ( cons @ U @ V ) != ( nil ) ) | ( ~( ssItem @ U ) ) |
% 0.54/0.87 ( ~( ssList @ V ) ))).
% 0.54/0.87 thf(zip_derived_cl27, plain,
% 0.54/0.87 (![X0 : $i, X1 : $i]:
% 0.54/0.87 (((cons @ X0 @ X1) != (nil)) | ~ (ssItem @ X0) | ~ (ssList @ X1))),
% 0.54/0.87 inference('cnf', [status(esa)], [clause98])).
% 0.54/0.87 thf(zip_derived_cl109, plain,
% 0.54/0.87 ((((sk1) != (nil))
% 0.54/0.87 | ((nil) = (sk2))
% 0.54/0.87 | ~ (ssList @ nil)
% 0.54/0.87 | ~ (ssItem @ sk5))),
% 0.54/0.87 inference('sup-', [status(thm)], [zip_derived_cl108, zip_derived_cl27])).
% 0.54/0.87 thf(clause8, axiom, (ssList @ nil)).
% 0.54/0.87 thf(zip_derived_cl3, plain, ( (ssList @ nil)),
% 0.54/0.87 inference('cnf', [status(esa)], [clause8])).
% 0.54/0.87 thf(zip_derived_cl111, plain,
% 0.54/0.87 ((((sk1) != (nil)) | ((nil) = (sk2)) | ~ (ssItem @ sk5))),
% 0.54/0.87 inference('demod', [status(thm)], [zip_derived_cl109, zip_derived_cl3])).
% 0.54/0.87 thf(co1_7, conjecture, (~( ( ( nil ) = ( sk4 ) ) | ( ssItem @ sk5 ) ))).
% 0.54/0.87 thf(zf_stmt_11, negated_conjecture,
% 0.54/0.87 (( ( nil ) = ( sk4 ) ) | ( ssItem @ sk5 )),
% 0.54/0.87 inference('cnf.neg', [status(esa)], [co1_7])).
% 0.54/0.87 thf(zip_derived_cl89, plain, ((((nil) = (sk4)) | (ssItem @ sk5))),
% 0.54/0.87 inference('cnf', [status(esa)], [zf_stmt_11])).
% 0.54/0.87 thf(zip_derived_cl91, plain, (((sk2) = (sk4))),
% 0.54/0.87 inference('cnf', [status(esa)], [zf_stmt_3])).
% 0.54/0.87 thf(zip_derived_cl105, plain, ((((nil) = (sk2)) | (ssItem @ sk5))),
% 0.54/0.87 inference('demod', [status(thm)], [zip_derived_cl89, zip_derived_cl91])).
% 0.54/0.87 thf(zip_derived_cl119, plain, ((((nil) = (sk2)) | ((sk1) != (nil)))),
% 0.54/0.87 inference('clc', [status(thm)], [zip_derived_cl111, zip_derived_cl105])).
% 0.54/0.87 thf(zip_derived_cl825, plain, (((nil) = (sk1))),
% 0.54/0.87 inference('clc', [status(thm)], [zip_derived_cl794, zip_derived_cl222])).
% 0.54/0.87 thf(zip_derived_cl830, plain, ((((nil) = (sk2)) | ((nil) != (nil)))),
% 0.54/0.87 inference('demod', [status(thm)], [zip_derived_cl119, zip_derived_cl825])).
% 0.54/0.87 thf(zip_derived_cl831, plain, (((nil) = (sk2))),
% 0.54/0.87 inference('simplify', [status(thm)], [zip_derived_cl830])).
% 0.54/0.87 thf(zip_derived_cl856, plain, (~ (segmentP @ nil @ nil)),
% 0.54/0.87 inference('demod', [status(thm)], [zip_derived_cl826, zip_derived_cl831])).
% 0.54/0.87 thf(zip_derived_cl857, plain, (~ (ssList @ nil)),
% 0.54/0.87 inference('sup-', [status(thm)], [zip_derived_cl7, zip_derived_cl856])).
% 0.54/0.87 thf(zip_derived_cl3, plain, ( (ssList @ nil)),
% 0.54/0.87 inference('cnf', [status(esa)], [clause8])).
% 0.54/0.87 thf(zip_derived_cl861, plain, ($false),
% 0.54/0.87 inference('demod', [status(thm)], [zip_derived_cl857, zip_derived_cl3])).
% 0.54/0.87
% 0.54/0.87 % SZS output end Refutation
% 0.54/0.87
% 0.54/0.87
% 0.54/0.87 % Terminating...
% 0.54/0.94 % Runner terminated.
% 0.54/0.95 % Zipperpin 1.5 exiting
%------------------------------------------------------------------------------