%------------------------------------------------------------------------------
% File : Zipperpin---2.1.9999
% Problem : GRP193-2 : TPTP v9.2.0. Bugfixed v1.2.1.
% Transfm : none
% Format : tptp:raw
% Command : python3 /export/starexec/sandbox/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox/tmp/tmp.m4InVsTGGD true
% Computer : n031.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 04:35:59 PM UTC 2025
% Result : Unsatisfiable 6.67s 1.54s
% Output : Refutation 6.67s
% Verified :
% SZS Type : -
% Comments :
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.11 % Problem : GRP193-2 : TPTP v9.2.0. Bugfixed v1.2.1.
% 0.11/0.12 % Command : python3 /export/starexec/sandbox/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox/tmp/tmp.m4InVsTGGD true
% 0.12/0.33 % Computer : n031.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 14:10:23 EDT 2025
% 0.12/0.33 % CPUTime :
% 0.12/0.33 % Running portfolio for 300 s
% 0.12/0.33 % File : /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.12/0.33 % Number of cores: 8
% 0.12/0.33 % Python version: Python 3.6.8
% 0.12/0.34 % Running in FO mode
% 0.54/0.67 % Total configuration time : 435
% 0.54/0.67 % Estimated wc time : 1092
% 0.54/0.67 % Estimated cpu time (7 cpus) : 156.0
% 0.54/0.72 % /export/starexec/sandbox/solver/bin/fo/fo6_bce.sh running for 75s
% 0.54/0.72 % /export/starexec/sandbox/solver/bin/fo/fo3_bce.sh running for 75s
% 0.54/0.75 % /export/starexec/sandbox/solver/bin/fo/fo1_av.sh running for 75s
% 0.54/0.75 % /export/starexec/sandbox/solver/bin/fo/fo7.sh running for 63s
% 0.54/0.76 % /export/starexec/sandbox/solver/bin/fo/fo13.sh running for 50s
% 0.54/0.76 % /export/starexec/sandbox/solver/bin/fo/fo5.sh running for 50s
% 0.54/0.77 % /export/starexec/sandbox/solver/bin/fo/fo4.sh running for 50s
% 6.67/1.54 % Solved by fo/fo5.sh.
% 6.67/1.54 % done 727 iterations in 0.744s
% 6.67/1.54 % SZS status Theorem for '/export/starexec/sandbox/benchmark/theBenchmark.p'
% 6.67/1.54 % SZS output start Refutation
% 6.67/1.54 thf(c_type, type, c: $i).
% 6.67/1.54 thf(b_type, type, b: $i).
% 6.67/1.54 thf(identity_type, type, identity: $i).
% 6.67/1.54 thf(multiply_type, type, multiply: $i > $i > $i).
% 6.67/1.54 thf(greatest_lower_bound_type, type, greatest_lower_bound: $i > $i > $i).
% 6.67/1.54 thf(a_type, type, a: $i).
% 6.67/1.54 thf(idempotence_of_gld, axiom, (( greatest_lower_bound @ X @ X ) = ( X ))).
% 6.67/1.54 thf(zip_derived_cl8, plain,
% 6.67/1.54 (![X0 : $i]: ((greatest_lower_bound @ X0 @ X0) = (X0))),
% 6.67/1.54 inference('cnf', [status(esa)], [idempotence_of_gld])).
% 6.67/1.54 thf(p8_9b_5, axiom,
% 6.67/1.54 (( greatest_lower_bound @
% 6.67/1.54 ( greatest_lower_bound @ a @ ( multiply @ b @ c ) ) @
% 6.67/1.54 ( multiply @
% 6.67/1.54 ( greatest_lower_bound @ a @ b ) @ ( greatest_lower_bound @ a @ c ) ) ) =
% 6.67/1.54 ( greatest_lower_bound @ a @ ( multiply @ b @ c ) ))).
% 6.67/1.54 thf(zip_derived_cl19, plain,
% 6.67/1.54 (((greatest_lower_bound @
% 6.67/1.54 (greatest_lower_bound @ a @ (multiply @ b @ c)) @
% 6.67/1.54 (multiply @ (greatest_lower_bound @ a @ b) @
% 6.67/1.54 (greatest_lower_bound @ a @ c)))
% 6.67/1.54 = (greatest_lower_bound @ a @ (multiply @ b @ c)))),
% 6.67/1.54 inference('cnf', [status(esa)], [p8_9b_5])).
% 6.67/1.54 thf(p8_9b_4, axiom, (( greatest_lower_bound @ a @ b ) = ( identity ))).
% 6.67/1.54 thf(zip_derived_cl18, plain, (((greatest_lower_bound @ a @ b) = (identity))),
% 6.67/1.54 inference('cnf', [status(esa)], [p8_9b_4])).
% 6.67/1.54 thf(left_identity, axiom, (( multiply @ identity @ X ) = ( X ))).
% 6.67/1.54 thf(zip_derived_cl0, plain,
% 6.67/1.54 (![X0 : $i]: ((multiply @ identity @ X0) = (X0))),
% 6.67/1.54 inference('cnf', [status(esa)], [left_identity])).
% 6.67/1.54 thf(associativity_of_glb, axiom,
% 6.67/1.54 (( greatest_lower_bound @ X @ ( greatest_lower_bound @ Y @ Z ) ) =
% 6.67/1.54 ( greatest_lower_bound @ ( greatest_lower_bound @ X @ Y ) @ Z ))).
% 6.67/1.54 thf(zip_derived_cl5, plain,
% 6.67/1.54 (![X0 : $i, X1 : $i, X2 : $i]:
% 6.67/1.54 ((greatest_lower_bound @ X0 @ (greatest_lower_bound @ X1 @ X2))
% 6.67/1.54 = (greatest_lower_bound @ (greatest_lower_bound @ X0 @ X1) @ X2))),
% 6.67/1.54 inference('cnf', [status(esa)], [associativity_of_glb])).
% 6.67/1.54 thf(zip_derived_cl74, plain,
% 6.67/1.54 (((greatest_lower_bound @ a @
% 6.67/1.54 (greatest_lower_bound @ (multiply @ b @ c) @
% 6.67/1.54 (greatest_lower_bound @ a @ c)))
% 6.67/1.54 = (greatest_lower_bound @ a @ (multiply @ b @ c)))),
% 6.67/1.54 inference('demod', [status(thm)],
% 6.67/1.54 [zip_derived_cl19, zip_derived_cl18, zip_derived_cl0,
% 6.67/1.54 zip_derived_cl5])).
% 6.67/1.54 thf(zip_derived_cl5, plain,
% 6.67/1.54 (![X0 : $i, X1 : $i, X2 : $i]:
% 6.67/1.54 ((greatest_lower_bound @ X0 @ (greatest_lower_bound @ X1 @ X2))
% 6.67/1.54 = (greatest_lower_bound @ (greatest_lower_bound @ X0 @ X1) @ X2))),
% 6.67/1.54 inference('cnf', [status(esa)], [associativity_of_glb])).
% 6.67/1.54 thf(zip_derived_cl75, plain,
% 6.67/1.54 (![X0 : $i]:
% 6.67/1.54 ((greatest_lower_bound @ a @
% 6.67/1.54 (greatest_lower_bound @
% 6.67/1.54 (greatest_lower_bound @ (multiply @ b @ c) @
% 6.67/1.54 (greatest_lower_bound @ a @ c)) @
% 6.67/1.54 X0))
% 6.67/1.54 = (greatest_lower_bound @
% 6.67/1.54 (greatest_lower_bound @ a @ (multiply @ b @ c)) @ X0))),
% 6.67/1.54 inference('sup+', [status(thm)], [zip_derived_cl74, zip_derived_cl5])).
% 6.67/1.54 thf(zip_derived_cl5, plain,
% 6.67/1.54 (![X0 : $i, X1 : $i, X2 : $i]:
% 6.67/1.54 ((greatest_lower_bound @ X0 @ (greatest_lower_bound @ X1 @ X2))
% 6.67/1.54 = (greatest_lower_bound @ (greatest_lower_bound @ X0 @ X1) @ X2))),
% 6.67/1.54 inference('cnf', [status(esa)], [associativity_of_glb])).
% 6.67/1.54 thf(zip_derived_cl5, plain,
% 6.67/1.54 (![X0 : $i, X1 : $i, X2 : $i]:
% 6.67/1.54 ((greatest_lower_bound @ X0 @ (greatest_lower_bound @ X1 @ X2))
% 6.67/1.54 = (greatest_lower_bound @ (greatest_lower_bound @ X0 @ X1) @ X2))),
% 6.67/1.54 inference('cnf', [status(esa)], [associativity_of_glb])).
% 6.67/1.54 thf(zip_derived_cl5, plain,
% 6.67/1.54 (![X0 : $i, X1 : $i, X2 : $i]:
% 6.67/1.54 ((greatest_lower_bound @ X0 @ (greatest_lower_bound @ X1 @ X2))
% 6.67/1.54 = (greatest_lower_bound @ (greatest_lower_bound @ X0 @ X1) @ X2))),
% 6.67/1.54 inference('cnf', [status(esa)], [associativity_of_glb])).
% 6.67/1.54 thf(zip_derived_cl77, plain,
% 6.67/1.54 (![X0 : $i]:
% 6.67/1.54 ((greatest_lower_bound @ a @
% 6.67/1.54 (greatest_lower_bound @ (multiply @ b @ c) @
% 6.67/1.54 (greatest_lower_bound @ a @ (greatest_lower_bound @ c @ X0))))
% 6.67/1.54 = (greatest_lower_bound @ a @
% 6.67/1.54 (greatest_lower_bound @ (multiply @ b @ c) @ X0)))),
% 6.67/1.54 inference('demod', [status(thm)],
% 6.67/1.54 [zip_derived_cl75, zip_derived_cl5, zip_derived_cl5,
% 6.67/1.54 zip_derived_cl5])).
% 6.67/1.54 thf(zip_derived_cl5, plain,
% 6.67/1.54 (![X0 : $i, X1 : $i, X2 : $i]:
% 6.67/1.54 ((greatest_lower_bound @ X0 @ (greatest_lower_bound @ X1 @ X2))
% 6.67/1.54 = (greatest_lower_bound @ (greatest_lower_bound @ X0 @ X1) @ X2))),
% 6.67/1.54 inference('cnf', [status(esa)], [associativity_of_glb])).
% 6.67/1.54 thf(symmetry_of_glb, axiom,
% 6.67/1.54 (( greatest_lower_bound @ X @ Y ) = ( greatest_lower_bound @ Y @ X ))).
% 6.67/1.54 thf(zip_derived_cl3, plain,
% 6.67/1.54 (![X0 : $i, X1 : $i]:
% 6.67/1.54 ((greatest_lower_bound @ X1 @ X0) = (greatest_lower_bound @ X0 @ X1))),
% 6.67/1.54 inference('cnf', [status(esa)], [symmetry_of_glb])).
% 6.67/1.54 thf(zip_derived_cl57, plain,
% 6.67/1.54 (![X0 : $i, X1 : $i, X2 : $i]:
% 6.67/1.54 ((greatest_lower_bound @ X0 @ (greatest_lower_bound @ X2 @ X1))
% 6.67/1.54 = (greatest_lower_bound @ X2 @ (greatest_lower_bound @ X1 @ X0)))),
% 6.67/1.54 inference('sup+', [status(thm)], [zip_derived_cl5, zip_derived_cl3])).
% 6.67/1.54 thf(zip_derived_cl5, plain,
% 6.67/1.54 (![X0 : $i, X1 : $i, X2 : $i]:
% 6.67/1.54 ((greatest_lower_bound @ X0 @ (greatest_lower_bound @ X1 @ X2))
% 6.67/1.54 = (greatest_lower_bound @ (greatest_lower_bound @ X0 @ X1) @ X2))),
% 6.67/1.54 inference('cnf', [status(esa)], [associativity_of_glb])).
% 6.67/1.54 thf(zip_derived_cl8, plain,
% 6.67/1.54 (![X0 : $i]: ((greatest_lower_bound @ X0 @ X0) = (X0))),
% 6.67/1.54 inference('cnf', [status(esa)], [idempotence_of_gld])).
% 6.67/1.54 thf(zip_derived_cl5, plain,
% 6.67/1.54 (![X0 : $i, X1 : $i, X2 : $i]:
% 6.67/1.54 ((greatest_lower_bound @ X0 @ (greatest_lower_bound @ X1 @ X2))
% 6.67/1.54 = (greatest_lower_bound @ (greatest_lower_bound @ X0 @ X1) @ X2))),
% 6.67/1.54 inference('cnf', [status(esa)], [associativity_of_glb])).
% 6.67/1.54 thf(zip_derived_cl65, plain,
% 6.67/1.54 (![X0 : $i, X1 : $i]:
% 6.67/1.54 ((greatest_lower_bound @ X0 @ (greatest_lower_bound @ X0 @ X1))
% 6.67/1.54 = (greatest_lower_bound @ X0 @ X1))),
% 6.67/1.54 inference('sup+', [status(thm)], [zip_derived_cl8, zip_derived_cl5])).
% 6.67/1.54 thf(zip_derived_cl1601, plain,
% 6.67/1.54 (![X0 : $i]:
% 6.67/1.54 ((greatest_lower_bound @ a @
% 6.67/1.54 (greatest_lower_bound @ c @
% 6.67/1.54 (greatest_lower_bound @ X0 @ (multiply @ b @ c))))
% 6.67/1.54 = (greatest_lower_bound @ a @
% 6.67/1.54 (greatest_lower_bound @ (multiply @ b @ c) @ X0)))),
% 6.67/1.54 inference('demod', [status(thm)],
% 6.67/1.54 [zip_derived_cl77, zip_derived_cl57, zip_derived_cl5,
% 6.67/1.54 zip_derived_cl65])).
% 6.67/1.54 thf(zip_derived_cl1622, plain,
% 6.67/1.54 (((greatest_lower_bound @ a @
% 6.67/1.54 (greatest_lower_bound @ c @ (multiply @ b @ c)))
% 6.67/1.54 = (greatest_lower_bound @ a @
% 6.67/1.54 (greatest_lower_bound @ (multiply @ b @ c) @ (multiply @ b @ c))))),
% 6.67/1.54 inference('sup+', [status(thm)], [zip_derived_cl8, zip_derived_cl1601])).
% 6.67/1.54 thf(monotony_glb1, axiom,
% 6.67/1.54 (( multiply @ X @ ( greatest_lower_bound @ Y @ Z ) ) =
% 6.67/1.54 ( greatest_lower_bound @ ( multiply @ X @ Y ) @ ( multiply @ X @ Z ) ))).
% 6.67/1.54 thf(zip_derived_cl12, plain,
% 6.67/1.54 (![X0 : $i, X1 : $i, X2 : $i]:
% 6.67/1.54 ((multiply @ X0 @ (greatest_lower_bound @ X1 @ X2))
% 6.67/1.54 = (greatest_lower_bound @ (multiply @ X0 @ X1) @
% 6.67/1.54 (multiply @ X0 @ X2)))),
% 6.67/1.54 inference('cnf', [status(esa)], [monotony_glb1])).
% 6.67/1.54 thf(zip_derived_cl8, plain,
% 6.67/1.54 (![X0 : $i]: ((greatest_lower_bound @ X0 @ X0) = (X0))),
% 6.67/1.54 inference('cnf', [status(esa)], [idempotence_of_gld])).
% 6.67/1.54 thf(zip_derived_cl1629, plain,
% 6.67/1.54 (((greatest_lower_bound @ a @
% 6.67/1.54 (greatest_lower_bound @ c @ (multiply @ b @ c)))
% 6.67/1.54 = (greatest_lower_bound @ a @ (multiply @ b @ c)))),
% 6.67/1.54 inference('demod', [status(thm)],
% 6.67/1.54 [zip_derived_cl1622, zip_derived_cl12, zip_derived_cl8])).
% 6.67/1.54 thf(zip_derived_cl18, plain, (((greatest_lower_bound @ a @ b) = (identity))),
% 6.67/1.54 inference('cnf', [status(esa)], [p8_9b_4])).
% 6.67/1.54 thf(zip_derived_cl57, plain,
% 6.67/1.54 (![X0 : $i, X1 : $i, X2 : $i]:
% 6.67/1.54 ((greatest_lower_bound @ X0 @ (greatest_lower_bound @ X2 @ X1))
% 6.67/1.54 = (greatest_lower_bound @ X2 @ (greatest_lower_bound @ X1 @ X0)))),
% 6.67/1.54 inference('sup+', [status(thm)], [zip_derived_cl5, zip_derived_cl3])).
% 6.67/1.54 thf(zip_derived_cl463, plain,
% 6.67/1.54 (![X0 : $i]:
% 6.67/1.54 ((greatest_lower_bound @ X0 @ identity)
% 6.67/1.54 = (greatest_lower_bound @ a @ (greatest_lower_bound @ b @ X0)))),
% 6.67/1.54 inference('sup+', [status(thm)], [zip_derived_cl18, zip_derived_cl57])).
% 6.67/1.54 thf(zip_derived_cl3, plain,
% 6.67/1.54 (![X0 : $i, X1 : $i]:
% 6.67/1.54 ((greatest_lower_bound @ X1 @ X0) = (greatest_lower_bound @ X0 @ X1))),
% 6.67/1.54 inference('cnf', [status(esa)], [symmetry_of_glb])).
% 6.67/1.54 thf(zip_derived_cl18, plain, (((greatest_lower_bound @ a @ b) = (identity))),
% 6.67/1.54 inference('cnf', [status(esa)], [p8_9b_4])).
% 6.67/1.54 thf(zip_derived_cl5, plain,
% 6.67/1.54 (![X0 : $i, X1 : $i, X2 : $i]:
% 6.67/1.54 ((greatest_lower_bound @ X0 @ (greatest_lower_bound @ X1 @ X2))
% 6.67/1.54 = (greatest_lower_bound @ (greatest_lower_bound @ X0 @ X1) @ X2))),
% 6.67/1.54 inference('cnf', [status(esa)], [associativity_of_glb])).
% 6.67/1.54 thf(zip_derived_cl71, plain,
% 6.67/1.54 (![X0 : $i]:
% 6.67/1.54 ((greatest_lower_bound @ a @ (greatest_lower_bound @ b @ X0))
% 6.67/1.54 = (greatest_lower_bound @ identity @ X0))),
% 6.67/1.54 inference('sup+', [status(thm)], [zip_derived_cl18, zip_derived_cl5])).
% 6.67/1.54 thf(zip_derived_cl212, plain,
% 6.67/1.54 (![X0 : $i]:
% 6.67/1.54 ((greatest_lower_bound @ a @ (greatest_lower_bound @ X0 @ b))
% 6.67/1.54 = (greatest_lower_bound @ identity @ X0))),
% 6.67/1.54 inference('sup+', [status(thm)], [zip_derived_cl3, zip_derived_cl71])).
% 6.67/1.54 thf(zip_derived_cl600, plain,
% 6.67/1.54 (((greatest_lower_bound @ b @ identity)
% 6.67/1.54 = (greatest_lower_bound @ identity @ b))),
% 6.67/1.54 inference('sup+', [status(thm)], [zip_derived_cl463, zip_derived_cl212])).
% 6.67/1.54 thf(p8_9b_2, axiom, (( greatest_lower_bound @ identity @ b ) = ( identity ))).
% 6.67/1.54 thf(zip_derived_cl16, plain,
% 6.67/1.54 (((greatest_lower_bound @ identity @ b) = (identity))),
% 6.67/1.54 inference('cnf', [status(esa)], [p8_9b_2])).
% 6.67/1.54 thf(zip_derived_cl618, plain,
% 6.67/1.54 (((greatest_lower_bound @ b @ identity) = (identity))),
% 6.67/1.54 inference('demod', [status(thm)], [zip_derived_cl600, zip_derived_cl16])).
% 6.67/1.54 thf(zip_derived_cl0, plain,
% 6.67/1.54 (![X0 : $i]: ((multiply @ identity @ X0) = (X0))),
% 6.67/1.54 inference('cnf', [status(esa)], [left_identity])).
% 6.67/1.54 thf(monotony_glb2, axiom,
% 6.67/1.54 (( multiply @ ( greatest_lower_bound @ Y @ Z ) @ X ) =
% 6.67/1.54 ( greatest_lower_bound @ ( multiply @ Y @ X ) @ ( multiply @ Z @ X ) ))).
% 6.67/1.54 thf(zip_derived_cl14, plain,
% 6.67/1.54 (![X0 : $i, X1 : $i, X2 : $i]:
% 6.67/1.54 ((multiply @ (greatest_lower_bound @ X0 @ X2) @ X1)
% 6.67/1.54 = (greatest_lower_bound @ (multiply @ X0 @ X1) @
% 6.67/1.54 (multiply @ X2 @ X1)))),
% 6.67/1.54 inference('cnf', [status(esa)], [monotony_glb2])).
% 6.67/1.54 thf(zip_derived_cl123, plain,
% 6.67/1.54 (![X0 : $i, X1 : $i]:
% 6.67/1.54 ((multiply @ (greatest_lower_bound @ X1 @ identity) @ X0)
% 6.67/1.54 = (greatest_lower_bound @ (multiply @ X1 @ X0) @ X0))),
% 6.67/1.54 inference('sup+', [status(thm)], [zip_derived_cl0, zip_derived_cl14])).
% 6.67/1.54 thf(zip_derived_cl5254, plain,
% 6.67/1.54 (![X0 : $i]:
% 6.67/1.54 ((multiply @ identity @ X0)
% 6.67/1.54 = (greatest_lower_bound @ (multiply @ b @ X0) @ X0))),
% 6.67/1.54 inference('sup+', [status(thm)], [zip_derived_cl618, zip_derived_cl123])).
% 6.67/1.54 thf(zip_derived_cl0, plain,
% 6.67/1.54 (![X0 : $i]: ((multiply @ identity @ X0) = (X0))),
% 6.67/1.54 inference('cnf', [status(esa)], [left_identity])).
% 6.67/1.54 thf(zip_derived_cl5281, plain,
% 6.67/1.54 (![X0 : $i]: ((X0) = (greatest_lower_bound @ (multiply @ b @ X0) @ X0))),
% 6.67/1.54 inference('demod', [status(thm)], [zip_derived_cl5254, zip_derived_cl0])).
% 6.67/1.54 thf(zip_derived_cl3, plain,
% 6.67/1.54 (![X0 : $i, X1 : $i]:
% 6.67/1.54 ((greatest_lower_bound @ X1 @ X0) = (greatest_lower_bound @ X0 @ X1))),
% 6.67/1.54 inference('cnf', [status(esa)], [symmetry_of_glb])).
% 6.67/1.54 thf(zip_derived_cl5396, plain,
% 6.67/1.54 (![X0 : $i]: ((greatest_lower_bound @ X0 @ (multiply @ b @ X0)) = (X0))),
% 6.67/1.54 inference('sup+', [status(thm)], [zip_derived_cl5281, zip_derived_cl3])).
% 6.67/1.54 thf(zip_derived_cl5454, plain,
% 6.67/1.54 (((greatest_lower_bound @ a @ c)
% 6.67/1.54 = (greatest_lower_bound @ a @ (multiply @ b @ c)))),
% 6.67/1.54 inference('demod', [status(thm)],
% 6.67/1.54 [zip_derived_cl1629, zip_derived_cl5396])).
% 6.67/1.54 thf(prove_p8_9b, conjecture,
% 6.67/1.54 (( greatest_lower_bound @ a @ ( multiply @ b @ c ) ) =
% 6.67/1.54 ( greatest_lower_bound @ a @ c ))).
% 6.67/1.54 thf(zf_stmt_0, negated_conjecture,
% 6.67/1.54 (( greatest_lower_bound @ a @ ( multiply @ b @ c ) ) !=
% 6.67/1.54 ( greatest_lower_bound @ a @ c )),
% 6.67/1.54 inference('cnf.neg', [status(esa)], [prove_p8_9b])).
% 6.67/1.54 thf(zip_derived_cl20, plain,
% 6.67/1.54 (((greatest_lower_bound @ a @ (multiply @ b @ c))
% 6.67/1.54 != (greatest_lower_bound @ a @ c))),
% 6.67/1.54 inference('cnf', [status(esa)], [zf_stmt_0])).
% 6.67/1.54 thf(zip_derived_cl5455, plain, ($false),
% 6.67/1.54 inference('simplify_reflect-', [status(thm)],
% 6.67/1.54 [zip_derived_cl5454, zip_derived_cl20])).
% 6.67/1.54
% 6.67/1.54 % SZS output end Refutation
% 6.67/1.54
% 6.67/1.54
% 6.67/1.54 % Terminating...
% 6.71/1.58 % Runner terminated.
% 6.71/1.59 % Zipperpin 1.5 exiting
%------------------------------------------------------------------------------