TSTP Solution File: SWC279-1 by Zipperpin---2.1.9999

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Zipperpin---2.1.9999
% Problem  : SWC279-1 : TPTP v8.1.2. Released v2.4.0.
% Transfm  : NO INFORMATION
% Format   : NO INFORMATION
% Command  : python3 /export/starexec/sandbox/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox/tmp/tmp.GQ9G5LtAwe true

% Computer : n004.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 21:30:26 EDT 2023

% Result   : Unsatisfiable 1.13s 1.05s
% Output   : Refutation 1.13s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.12/0.13  % Problem  : SWC279-1 : TPTP v8.1.2. Released v2.4.0.
% 0.12/0.14  % Command  : python3 /export/starexec/sandbox/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox/tmp/tmp.GQ9G5LtAwe true
% 0.13/0.35  % Computer : n004.cluster.edu
% 0.13/0.35  % Model    : x86_64 x86_64
% 0.13/0.35  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.35  % Memory   : 8042.1875MB
% 0.13/0.35  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.35  % CPULimit : 300
% 0.13/0.35  % WCLimit  : 300
% 0.13/0.35  % DateTime : Mon Aug 28 17:32:37 EDT 2023
% 0.13/0.35  % CPUTime  : 
% 0.13/0.35  % Running portfolio for 300 s
% 0.13/0.35  % File         : /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.13/0.35  % Number of cores: 8
% 0.13/0.36  % Python version: Python 3.6.8
% 0.13/0.36  % Running in FO mode
% 0.21/0.65  % Total configuration time : 435
% 0.21/0.65  % Estimated wc time : 1092
% 0.21/0.65  % Estimated cpu time (7 cpus) : 156.0
% 0.21/0.72  % /export/starexec/sandbox/solver/bin/fo/fo6_bce.sh running for 75s
% 0.21/0.79  % /export/starexec/sandbox/solver/bin/fo/fo3_bce.sh running for 75s
% 1.11/0.83  % /export/starexec/sandbox/solver/bin/fo/fo5.sh running for 50s
% 1.11/0.83  % /export/starexec/sandbox/solver/bin/fo/fo13.sh running for 50s
% 1.11/0.83  % /export/starexec/sandbox/solver/bin/fo/fo7.sh running for 63s
% 1.11/0.83  % /export/starexec/sandbox/solver/bin/fo/fo4.sh running for 50s
% 1.11/0.86  % /export/starexec/sandbox/solver/bin/fo/fo1_av.sh running for 75s
% 1.13/1.05  % Solved by fo/fo3_bce.sh.
% 1.13/1.05  % BCE start: 71
% 1.13/1.05  % BCE eliminated: 4
% 1.13/1.05  % PE start: 67
% 1.13/1.05  logic: eq
% 1.13/1.05  % PE eliminated: 0
% 1.13/1.05  % done 232 iterations in 0.204s
% 1.13/1.05  % SZS status Theorem for '/export/starexec/sandbox/benchmark/theBenchmark.p'
% 1.13/1.05  % SZS output start Refutation
% 1.13/1.05  thf(nil_type, type, nil: $i).
% 1.13/1.05  thf(leq_type, type, leq: $i > $i > $o).
% 1.13/1.05  thf(cons_type, type, cons: $i > $i > $i).
% 1.13/1.05  thf(sk5_type, type, sk5: $i).
% 1.13/1.05  thf(sk6_type, type, sk6: $i).
% 1.13/1.05  thf(memberP_type, type, memberP: $i > $i > $o).
% 1.13/1.05  thf(sk7_type, type, sk7: $i).
% 1.13/1.05  thf(ssItem_type, type, ssItem: $i > $o).
% 1.13/1.05  thf(sk3_type, type, sk3: $i).
% 1.13/1.05  thf(sk8_type, type, sk8: $i).
% 1.13/1.05  thf(app_type, type, app: $i > $i > $i).
% 1.13/1.05  thf(ssList_type, type, ssList: $i > $o).
% 1.13/1.05  thf(sk1_type, type, sk1: $i).
% 1.13/1.05  thf(co1_16, conjecture,
% 1.13/1.05    (~( ( memberP @ sk7 @ sk8 ) | ( ~( leq @ sk8 @ sk5 ) ) ))).
% 1.13/1.05  thf(zf_stmt_0, negated_conjecture,
% 1.13/1.05    (( memberP @ sk7 @ sk8 ) | ( ~( leq @ sk8 @ sk5 ) )),
% 1.13/1.05    inference('cnf.neg', [status(esa)], [co1_16])).
% 1.13/1.05  thf(zip_derived_cl55, plain,
% 1.13/1.05      (( (memberP @ sk7 @ sk8) | ~ (leq @ sk8 @ sk5))),
% 1.13/1.05      inference('cnf', [status(esa)], [zf_stmt_0])).
% 1.13/1.05  thf(co1_12, conjecture,
% 1.13/1.05    (( app @ ( app @ sk6 @ ( cons @ sk5 @ nil ) ) @ sk7 ) != ( sk1 ))).
% 1.13/1.05  thf(zf_stmt_1, negated_conjecture,
% 1.13/1.05    (( app @ ( app @ sk6 @ ( cons @ sk5 @ nil ) ) @ sk7 ) = ( sk1 )),
% 1.13/1.05    inference('cnf.neg', [status(esa)], [co1_12])).
% 1.13/1.05  thf(zip_derived_cl59, plain,
% 1.13/1.05      (((app @ (app @ sk6 @ (cons @ sk5 @ nil)) @ sk7) = (sk1))),
% 1.13/1.05      inference('cnf', [status(esa)], [zf_stmt_1])).
% 1.13/1.05  thf(co1_7, conjecture,
% 1.13/1.05    (~( ( ~( memberP @ C @ D ) ) | ( leq @ A @ D ) | ( ~( ssItem @ D ) ) | 
% 1.13/1.05        ( ( app @ ( app @ B @ ( cons @ A @ nil ) ) @ C ) != ( sk3 ) ) | 
% 1.13/1.05        ( ~( ssList @ C ) ) | ( ~( ssList @ B ) ) | ( ~( ssItem @ A ) ) ))).
% 1.13/1.05  thf(zf_stmt_2, negated_conjecture,
% 1.13/1.05    (( ~( memberP @ C @ D ) ) | ( leq @ A @ D ) | ( ~( ssItem @ D ) ) | 
% 1.13/1.05     ( ( app @ ( app @ B @ ( cons @ A @ nil ) ) @ C ) != ( sk3 ) ) | 
% 1.13/1.05     ( ~( ssList @ C ) ) | ( ~( ssList @ B ) ) | ( ~( ssItem @ A ) )),
% 1.13/1.05    inference('cnf.neg', [status(esa)], [co1_7])).
% 1.13/1.05  thf(zip_derived_cl64, plain,
% 1.13/1.05      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 1.13/1.05         (~ (memberP @ X0 @ X1)
% 1.13/1.05          |  (leq @ X2 @ X1)
% 1.13/1.05          | ~ (ssItem @ X1)
% 1.13/1.05          | ((app @ (app @ X3 @ (cons @ X2 @ nil)) @ X0) != (sk3))
% 1.13/1.05          | ~ (ssList @ X0)
% 1.13/1.05          | ~ (ssList @ X3)
% 1.13/1.05          | ~ (ssItem @ X2))),
% 1.13/1.05      inference('cnf', [status(esa)], [zf_stmt_2])).
% 1.13/1.05  thf(co1_6, conjecture, (( sk1 ) != ( sk3 ))).
% 1.13/1.05  thf(zf_stmt_3, negated_conjecture, (( sk1 ) = ( sk3 )),
% 1.13/1.05    inference('cnf.neg', [status(esa)], [co1_6])).
% 1.13/1.05  thf(zip_derived_cl65, plain, (((sk1) = (sk3))),
% 1.13/1.05      inference('cnf', [status(esa)], [zf_stmt_3])).
% 1.13/1.05  thf(zip_derived_cl1812, plain,
% 1.13/1.05      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 1.13/1.05         (~ (memberP @ X0 @ X1)
% 1.13/1.05          |  (leq @ X2 @ X1)
% 1.13/1.05          | ~ (ssItem @ X1)
% 1.13/1.05          | ((app @ (app @ X3 @ (cons @ X2 @ nil)) @ X0) != (sk1))
% 1.13/1.05          | ~ (ssList @ X0)
% 1.13/1.05          | ~ (ssList @ X3)
% 1.13/1.05          | ~ (ssItem @ X2))),
% 1.13/1.05      inference('demod', [status(thm)], [zip_derived_cl64, zip_derived_cl65])).
% 1.13/1.05  thf(zip_derived_cl1816, plain,
% 1.13/1.05      (![X0 : $i]:
% 1.13/1.05         (((sk1) != (sk1))
% 1.13/1.05          | ~ (ssItem @ sk5)
% 1.13/1.05          | ~ (ssList @ sk6)
% 1.13/1.05          | ~ (ssList @ sk7)
% 1.13/1.05          | ~ (ssItem @ X0)
% 1.13/1.05          |  (leq @ sk5 @ X0)
% 1.13/1.05          | ~ (memberP @ sk7 @ X0))),
% 1.13/1.05      inference('sup-', [status(thm)], [zip_derived_cl59, zip_derived_cl1812])).
% 1.13/1.05  thf(co1_9, conjecture, (~( ssItem @ sk5 ))).
% 1.13/1.05  thf(zf_stmt_4, negated_conjecture, (ssItem @ sk5),
% 1.13/1.05    inference('cnf.neg', [status(esa)], [co1_9])).
% 1.13/1.05  thf(zip_derived_cl62, plain, ( (ssItem @ sk5)),
% 1.13/1.05      inference('cnf', [status(esa)], [zf_stmt_4])).
% 1.13/1.05  thf(co1_10, conjecture, (~( ssList @ sk6 ))).
% 1.13/1.05  thf(zf_stmt_5, negated_conjecture, (ssList @ sk6),
% 1.13/1.05    inference('cnf.neg', [status(esa)], [co1_10])).
% 1.13/1.05  thf(zip_derived_cl61, plain, ( (ssList @ sk6)),
% 1.13/1.05      inference('cnf', [status(esa)], [zf_stmt_5])).
% 1.13/1.05  thf(co1_11, conjecture, (~( ssList @ sk7 ))).
% 1.13/1.05  thf(zf_stmt_6, negated_conjecture, (ssList @ sk7),
% 1.13/1.05    inference('cnf.neg', [status(esa)], [co1_11])).
% 1.13/1.05  thf(zip_derived_cl60, plain, ( (ssList @ sk7)),
% 1.13/1.05      inference('cnf', [status(esa)], [zf_stmt_6])).
% 1.13/1.05  thf(zip_derived_cl1828, plain,
% 1.13/1.05      (![X0 : $i]:
% 1.13/1.05         (((sk1) != (sk1))
% 1.13/1.05          | ~ (ssItem @ X0)
% 1.13/1.05          |  (leq @ sk5 @ X0)
% 1.13/1.05          | ~ (memberP @ sk7 @ X0))),
% 1.13/1.05      inference('demod', [status(thm)],
% 1.13/1.05                [zip_derived_cl1816, zip_derived_cl62, zip_derived_cl61, 
% 1.13/1.05                 zip_derived_cl60])).
% 1.13/1.05  thf(zip_derived_cl1829, plain,
% 1.13/1.05      (![X0 : $i]:
% 1.13/1.05         (~ (memberP @ sk7 @ X0) |  (leq @ sk5 @ X0) | ~ (ssItem @ X0))),
% 1.13/1.05      inference('simplify', [status(thm)], [zip_derived_cl1828])).
% 1.13/1.05  thf(zip_derived_cl1856, plain,
% 1.13/1.05      ((~ (leq @ sk8 @ sk5) | ~ (ssItem @ sk8) |  (leq @ sk5 @ sk8))),
% 1.13/1.05      inference('sup-', [status(thm)], [zip_derived_cl55, zip_derived_cl1829])).
% 1.13/1.05  thf(co1_13, conjecture, (~( ssItem @ sk8 ))).
% 1.13/1.05  thf(zf_stmt_7, negated_conjecture, (ssItem @ sk8),
% 1.13/1.05    inference('cnf.neg', [status(esa)], [co1_13])).
% 1.13/1.05  thf(zip_derived_cl58, plain, ( (ssItem @ sk8)),
% 1.13/1.05      inference('cnf', [status(esa)], [zf_stmt_7])).
% 1.13/1.05  thf(co1_15, conjecture,
% 1.13/1.05    (~( ( ~( leq @ sk5 @ sk8 ) ) | ( memberP @ sk6 @ sk8 ) ))).
% 1.13/1.05  thf(zf_stmt_8, negated_conjecture,
% 1.13/1.05    (( ~( leq @ sk5 @ sk8 ) ) | ( memberP @ sk6 @ sk8 )),
% 1.13/1.05    inference('cnf.neg', [status(esa)], [co1_15])).
% 1.13/1.05  thf(zip_derived_cl56, plain,
% 1.13/1.05      ((~ (leq @ sk5 @ sk8) |  (memberP @ sk6 @ sk8))),
% 1.13/1.05      inference('cnf', [status(esa)], [zf_stmt_8])).
% 1.13/1.05  thf(zip_derived_cl59, plain,
% 1.13/1.05      (((app @ (app @ sk6 @ (cons @ sk5 @ nil)) @ sk7) = (sk1))),
% 1.13/1.05      inference('cnf', [status(esa)], [zf_stmt_1])).
% 1.13/1.05  thf(co1_8, conjecture,
% 1.13/1.05    (~( ( ~( memberP @ B @ D ) ) | ( leq @ D @ A ) | ( ~( ssItem @ D ) ) | 
% 1.13/1.05        ( ( app @ ( app @ B @ ( cons @ A @ nil ) ) @ C ) != ( sk3 ) ) | 
% 1.13/1.05        ( ~( ssList @ C ) ) | ( ~( ssList @ B ) ) | ( ~( ssItem @ A ) ) ))).
% 1.13/1.05  thf(zf_stmt_9, negated_conjecture,
% 1.13/1.05    (( ~( memberP @ B @ D ) ) | ( leq @ D @ A ) | ( ~( ssItem @ D ) ) | 
% 1.13/1.05     ( ( app @ ( app @ B @ ( cons @ A @ nil ) ) @ C ) != ( sk3 ) ) | 
% 1.13/1.05     ( ~( ssList @ C ) ) | ( ~( ssList @ B ) ) | ( ~( ssItem @ A ) )),
% 1.13/1.05    inference('cnf.neg', [status(esa)], [co1_8])).
% 1.13/1.05  thf(zip_derived_cl63, plain,
% 1.13/1.05      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 1.13/1.05         (~ (memberP @ X0 @ X1)
% 1.13/1.05          |  (leq @ X1 @ X2)
% 1.13/1.05          | ~ (ssItem @ X1)
% 1.13/1.05          | ((app @ (app @ X0 @ (cons @ X2 @ nil)) @ X3) != (sk3))
% 1.13/1.05          | ~ (ssList @ X3)
% 1.13/1.05          | ~ (ssList @ X0)
% 1.13/1.05          | ~ (ssItem @ X2))),
% 1.13/1.05      inference('cnf', [status(esa)], [zf_stmt_9])).
% 1.13/1.05  thf(zip_derived_cl65, plain, (((sk1) = (sk3))),
% 1.13/1.05      inference('cnf', [status(esa)], [zf_stmt_3])).
% 1.13/1.05  thf(zip_derived_cl1763, plain,
% 1.13/1.05      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 1.13/1.05         (~ (memberP @ X0 @ X1)
% 1.13/1.05          |  (leq @ X1 @ X2)
% 1.13/1.05          | ~ (ssItem @ X1)
% 1.13/1.05          | ((app @ (app @ X0 @ (cons @ X2 @ nil)) @ X3) != (sk1))
% 1.13/1.05          | ~ (ssList @ X3)
% 1.13/1.05          | ~ (ssList @ X0)
% 1.13/1.05          | ~ (ssItem @ X2))),
% 1.13/1.05      inference('demod', [status(thm)], [zip_derived_cl63, zip_derived_cl65])).
% 1.13/1.05  thf(zip_derived_cl1767, plain,
% 1.13/1.05      (![X0 : $i]:
% 1.13/1.05         (((sk1) != (sk1))
% 1.13/1.05          | ~ (ssItem @ sk5)
% 1.13/1.05          | ~ (ssList @ sk6)
% 1.13/1.05          | ~ (ssList @ sk7)
% 1.13/1.05          | ~ (ssItem @ X0)
% 1.13/1.05          |  (leq @ X0 @ sk5)
% 1.13/1.05          | ~ (memberP @ sk6 @ X0))),
% 1.13/1.05      inference('sup-', [status(thm)], [zip_derived_cl59, zip_derived_cl1763])).
% 1.13/1.05  thf(zip_derived_cl62, plain, ( (ssItem @ sk5)),
% 1.13/1.05      inference('cnf', [status(esa)], [zf_stmt_4])).
% 1.13/1.05  thf(zip_derived_cl61, plain, ( (ssList @ sk6)),
% 1.13/1.05      inference('cnf', [status(esa)], [zf_stmt_5])).
% 1.13/1.05  thf(zip_derived_cl60, plain, ( (ssList @ sk7)),
% 1.13/1.05      inference('cnf', [status(esa)], [zf_stmt_6])).
% 1.13/1.05  thf(zip_derived_cl1779, plain,
% 1.13/1.05      (![X0 : $i]:
% 1.13/1.05         (((sk1) != (sk1))
% 1.13/1.05          | ~ (ssItem @ X0)
% 1.13/1.05          |  (leq @ X0 @ sk5)
% 1.13/1.05          | ~ (memberP @ sk6 @ X0))),
% 1.13/1.05      inference('demod', [status(thm)],
% 1.13/1.05                [zip_derived_cl1767, zip_derived_cl62, zip_derived_cl61, 
% 1.13/1.05                 zip_derived_cl60])).
% 1.13/1.05  thf(zip_derived_cl1780, plain,
% 1.13/1.05      (![X0 : $i]:
% 1.13/1.05         (~ (memberP @ sk6 @ X0) |  (leq @ X0 @ sk5) | ~ (ssItem @ X0))),
% 1.13/1.05      inference('simplify', [status(thm)], [zip_derived_cl1779])).
% 1.13/1.05  thf(zip_derived_cl1788, plain,
% 1.13/1.05      ((~ (leq @ sk5 @ sk8) | ~ (ssItem @ sk8) |  (leq @ sk8 @ sk5))),
% 1.13/1.05      inference('sup-', [status(thm)], [zip_derived_cl56, zip_derived_cl1780])).
% 1.13/1.05  thf(zip_derived_cl58, plain, ( (ssItem @ sk8)),
% 1.13/1.05      inference('cnf', [status(esa)], [zf_stmt_7])).
% 1.13/1.05  thf(zip_derived_cl1790, plain, ((~ (leq @ sk5 @ sk8) |  (leq @ sk8 @ sk5))),
% 1.13/1.05      inference('demod', [status(thm)], [zip_derived_cl1788, zip_derived_cl58])).
% 1.13/1.05  thf(co1_17, conjecture,
% 1.13/1.05    (~( ( ~( leq @ sk5 @ sk8 ) ) | ( ~( leq @ sk8 @ sk5 ) ) ))).
% 1.13/1.05  thf(zf_stmt_10, negated_conjecture,
% 1.13/1.05    (( ~( leq @ sk5 @ sk8 ) ) | ( ~( leq @ sk8 @ sk5 ) )),
% 1.13/1.05    inference('cnf.neg', [status(esa)], [co1_17])).
% 1.13/1.05  thf(zip_derived_cl54, plain, ((~ (leq @ sk5 @ sk8) | ~ (leq @ sk8 @ sk5))),
% 1.13/1.05      inference('cnf', [status(esa)], [zf_stmt_10])).
% 1.13/1.05  thf(zip_derived_cl1793, plain, (~ (leq @ sk5 @ sk8)),
% 1.13/1.05      inference('clc', [status(thm)], [zip_derived_cl1790, zip_derived_cl54])).
% 1.13/1.05  thf(zip_derived_cl1859, plain, (~ (leq @ sk8 @ sk5)),
% 1.13/1.05      inference('demod', [status(thm)],
% 1.13/1.05                [zip_derived_cl1856, zip_derived_cl58, zip_derived_cl1793])).
% 1.13/1.05  thf(zip_derived_cl1780, plain,
% 1.13/1.05      (![X0 : $i]:
% 1.13/1.05         (~ (memberP @ sk6 @ X0) |  (leq @ X0 @ sk5) | ~ (ssItem @ X0))),
% 1.13/1.05      inference('simplify', [status(thm)], [zip_derived_cl1779])).
% 1.13/1.05  thf(co1_14, conjecture,
% 1.13/1.05    (~( ( memberP @ sk7 @ sk8 ) | ( memberP @ sk6 @ sk8 ) ))).
% 1.13/1.05  thf(zf_stmt_11, negated_conjecture,
% 1.13/1.05    (( memberP @ sk7 @ sk8 ) | ( memberP @ sk6 @ sk8 )),
% 1.13/1.05    inference('cnf.neg', [status(esa)], [co1_14])).
% 1.13/1.05  thf(zip_derived_cl57, plain,
% 1.13/1.05      (( (memberP @ sk7 @ sk8) |  (memberP @ sk6 @ sk8))),
% 1.13/1.05      inference('cnf', [status(esa)], [zf_stmt_11])).
% 1.13/1.05  thf(zip_derived_cl1829, plain,
% 1.13/1.05      (![X0 : $i]:
% 1.13/1.05         (~ (memberP @ sk7 @ X0) |  (leq @ sk5 @ X0) | ~ (ssItem @ X0))),
% 1.13/1.05      inference('simplify', [status(thm)], [zip_derived_cl1828])).
% 1.13/1.05  thf(zip_derived_cl1857, plain,
% 1.13/1.05      (( (memberP @ sk6 @ sk8) | ~ (ssItem @ sk8) |  (leq @ sk5 @ sk8))),
% 1.13/1.05      inference('sup-', [status(thm)], [zip_derived_cl57, zip_derived_cl1829])).
% 1.13/1.05  thf(zip_derived_cl58, plain, ( (ssItem @ sk8)),
% 1.13/1.05      inference('cnf', [status(esa)], [zf_stmt_7])).
% 1.13/1.05  thf(zip_derived_cl1793, plain, (~ (leq @ sk5 @ sk8)),
% 1.13/1.05      inference('clc', [status(thm)], [zip_derived_cl1790, zip_derived_cl54])).
% 1.13/1.05  thf(zip_derived_cl1860, plain, ( (memberP @ sk6 @ sk8)),
% 1.13/1.05      inference('demod', [status(thm)],
% 1.13/1.05                [zip_derived_cl1857, zip_derived_cl58, zip_derived_cl1793])).
% 1.13/1.05  thf(zip_derived_cl1865, plain, ((~ (ssItem @ sk8) |  (leq @ sk8 @ sk5))),
% 1.13/1.05      inference('sup+', [status(thm)], [zip_derived_cl1780, zip_derived_cl1860])).
% 1.13/1.05  thf(zip_derived_cl58, plain, ( (ssItem @ sk8)),
% 1.13/1.05      inference('cnf', [status(esa)], [zf_stmt_7])).
% 1.13/1.05  thf(zip_derived_cl1866, plain, ( (leq @ sk8 @ sk5)),
% 1.13/1.05      inference('demod', [status(thm)], [zip_derived_cl1865, zip_derived_cl58])).
% 1.13/1.05  thf(zip_derived_cl1868, plain, ($false),
% 1.13/1.05      inference('demod', [status(thm)],
% 1.13/1.05                [zip_derived_cl1859, zip_derived_cl1866])).
% 1.13/1.05  
% 1.13/1.05  % SZS output end Refutation
% 1.13/1.05  
% 1.13/1.05  
% 1.13/1.05  % Terminating...
% 1.37/1.40  % Runner terminated.
% 1.37/1.40  % Zipperpin 1.5 exiting
%------------------------------------------------------------------------------