%------------------------------------------------------------------------------
% File : Zipperpin---2.1.9999
% Problem : SET064-7 : TPTP v9.2.0. Bugfixed v2.1.0.
% Transfm : none
% Format : tptp:raw
% Command : python3 /export/starexec/sandbox/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox/tmp/tmp.PZ9qVmv8Lk 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 Oct 2 04:51:24 PM UTC 2025
% Result : Unsatisfiable 0.54s 0.73s
% Output : Refutation 0.54s
% Verified :
% SZS Type : -
% Comments :
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.11/0.11 % Problem : SET064-7 : TPTP v9.2.0. Bugfixed v2.1.0.
% 0.11/0.12 % Command : python3 /export/starexec/sandbox/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox/tmp/tmp.PZ9qVmv8Lk true
% 0.12/0.33 % Computer : n004.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 13:03:23 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
% 0.54/0.62 % Total configuration time : 435
% 0.54/0.62 % Estimated wc time : 1092
% 0.54/0.62 % Estimated cpu time (7 cpus) : 156.0
% 0.54/0.69 % /export/starexec/sandbox/solver/bin/fo/fo6_bce.sh running for 75s
% 0.54/0.70 % /export/starexec/sandbox/solver/bin/fo/fo3_bce.sh running for 75s
% 0.54/0.71 % /export/starexec/sandbox/solver/bin/fo/fo1_av.sh running for 75s
% 0.54/0.73 % /export/starexec/sandbox/solver/bin/fo/fo7.sh running for 63s
% 0.54/0.73 % Solved by fo/fo3_bce.sh.
% 0.54/0.73 % BCE start: 54
% 0.54/0.73 % BCE eliminated: 8
% 0.54/0.73 % PE start: 46
% 0.54/0.73 logic: eq
% 0.54/0.73 % PE eliminated: 2
% 0.54/0.73 % done 17 iterations in 0.016s
% 0.54/0.73 % SZS status Theorem for '/export/starexec/sandbox/benchmark/theBenchmark.p'
% 0.54/0.73 % SZS output start Refutation
% 0.54/0.73 thf(null_class_type, type, null_class: $i).
% 0.54/0.73 thf(member_type, type, member: $i > $i > $o).
% 0.54/0.73 thf(subclass_type, type, subclass: $i > $i > $o).
% 0.54/0.73 thf(not_subclass_element_type, type, not_subclass_element: $i > $i > $i).
% 0.54/0.73 thf(z_type, type, z: $i).
% 0.54/0.73 thf(corollary_of_null_class_is_subclass, axiom,
% 0.54/0.73 (( ~( subclass @ X @ null_class ) ) | ( ( X ) = ( null_class ) ))).
% 0.54/0.73 thf(zip_derived_cl51, plain,
% 0.54/0.73 (![X0 : $i]: (~ (subclass @ X0 @ null_class) | ((X0) = (null_class)))),
% 0.54/0.73 inference('cnf', [status(esa)], [corollary_of_null_class_is_subclass])).
% 0.54/0.73 thf(not_subclass_members1, axiom,
% 0.54/0.73 (( member @ ( not_subclass_element @ X @ Y ) @ X ) | ( subclass @ X @ Y ))).
% 0.54/0.73 thf(zip_derived_cl1, plain,
% 0.54/0.73 (![X0 : $i, X1 : $i]:
% 0.54/0.73 ( (member @ (not_subclass_element @ X0 @ X1) @ X0)
% 0.54/0.73 | (subclass @ X0 @ X1))),
% 0.54/0.73 inference('cnf', [status(esa)], [not_subclass_members1])).
% 0.54/0.73 thf(prove_null_class_is_unique_2, conjecture,
% 0.54/0.73 (member @ ( not_subclass_element @ z @ null_class ) @ z)).
% 0.54/0.73 thf(zf_stmt_0, negated_conjecture,
% 0.54/0.73 (~( member @ ( not_subclass_element @ z @ null_class ) @ z )),
% 0.54/0.73 inference('cnf.neg', [status(esa)], [prove_null_class_is_unique_2])).
% 0.54/0.73 thf(zip_derived_cl52, plain,
% 0.54/0.73 (~ (member @ (not_subclass_element @ z @ null_class) @ z)),
% 0.54/0.73 inference('cnf', [status(esa)], [zf_stmt_0])).
% 0.54/0.73 thf(zip_derived_cl207, plain, ( (subclass @ z @ null_class)),
% 0.54/0.73 inference('sup-', [status(thm)], [zip_derived_cl1, zip_derived_cl52])).
% 0.54/0.73 thf(zip_derived_cl212, plain, (((z) = (null_class))),
% 0.54/0.73 inference('sup+', [status(thm)], [zip_derived_cl51, zip_derived_cl207])).
% 0.54/0.73 thf(prove_null_class_is_unique_1, conjecture, (( z ) = ( null_class ))).
% 0.54/0.73 thf(zf_stmt_1, negated_conjecture, (( z ) != ( null_class )),
% 0.54/0.73 inference('cnf.neg', [status(esa)], [prove_null_class_is_unique_1])).
% 0.54/0.73 thf(zip_derived_cl53, plain, (((z) != (null_class))),
% 0.54/0.73 inference('cnf', [status(esa)], [zf_stmt_1])).
% 0.54/0.73 thf(zip_derived_cl213, plain, ($false),
% 0.54/0.73 inference('simplify_reflect-', [status(thm)],
% 0.54/0.73 [zip_derived_cl212, zip_derived_cl53])).
% 0.54/0.73
% 0.54/0.73 % SZS output end Refutation
% 0.54/0.73
% 0.54/0.73
% 0.54/0.73 % Terminating...
% 0.60/0.84 % Runner terminated.
% 0.60/0.85 % Zipperpin 1.5 exiting
%------------------------------------------------------------------------------