%------------------------------------------------------------------------------
% File : Zipperpin---2.1.9999
% Problem : SYN349+1 : TPTP v9.2.0. Released v2.0.0.
% Transfm : none
% Format : tptp:raw
% Command : python3 /export/starexec/sandbox/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox/tmp/tmp.j28XQjwkfi true
% Computer : n005.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 05:04:33 PM UTC 2025
% Result : Theorem 1.26s 0.74s
% Output : Refutation 1.26s
% Verified :
% SZS Type : -
% Comments :
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.10 % Problem : SYN349+1 : TPTP v9.2.0. Released v2.0.0.
% 0.10/0.11 % Command : python3 /export/starexec/sandbox/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox/tmp/tmp.j28XQjwkfi true
% 0.10/0.31 % Computer : n005.cluster.edu
% 0.10/0.31 % Model : x86_64 x86_64
% 0.10/0.31 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.10/0.31 % Memory : 8042.1875MB
% 0.10/0.31 % OS : Linux 3.10.0-693.el7.x86_64
% 0.10/0.31 % CPULimit : 300
% 0.10/0.31 % WCLimit : 300
% 0.10/0.31 % DateTime : Wed Oct 1 13:36:08 EDT 2025
% 0.10/0.31 % CPUTime :
% 0.10/0.31 % Running portfolio for 300 s
% 0.10/0.31 % File : /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.16/0.31 % Number of cores: 8
% 0.16/0.31 % Python version: Python 3.6.8
% 0.16/0.32 % Running in FO mode
% 0.16/0.58 % Total configuration time : 435
% 0.16/0.58 % Estimated wc time : 1092
% 0.16/0.58 % Estimated cpu time (7 cpus) : 156.0
% 0.85/0.68 % /export/starexec/sandbox/solver/bin/fo/fo6_bce.sh running for 75s
% 0.85/0.69 % /export/starexec/sandbox/solver/bin/fo/fo1_av.sh running for 75s
% 0.85/0.69 % /export/starexec/sandbox/solver/bin/fo/fo3_bce.sh running for 75s
% 0.85/0.69 % /export/starexec/sandbox/solver/bin/fo/fo13.sh running for 50s
% 0.85/0.69 % /export/starexec/sandbox/solver/bin/fo/fo7.sh running for 63s
% 0.85/0.69 % /export/starexec/sandbox/solver/bin/fo/fo5.sh running for 50s
% 0.85/0.69 % /export/starexec/sandbox/solver/bin/fo/fo4.sh running for 50s
% 1.26/0.74 % Solved by fo/fo6_bce.sh.
% 1.26/0.74 % BCE start: 12
% 1.26/0.74 % BCE eliminated: 0
% 1.26/0.74 % PE start: 12
% 1.26/0.74 logic: neq
% 1.26/0.74 % PE eliminated: 2
% 1.26/0.74 % done 13 iterations in 0.034s
% 1.26/0.74 % SZS status Theorem for '/export/starexec/sandbox/benchmark/theBenchmark.p'
% 1.26/0.74 % SZS output start Refutation
% 1.26/0.74 thf(zip_tseitin_1_type, type, zip_tseitin_1: $i > $i > $i > $o).
% 1.26/0.74 thf(sk__type, type, sk_: $i > $i).
% 1.26/0.74 thf(big_f_type, type, big_f: $i > $i > $o).
% 1.26/0.74 thf(sk__1_type, type, sk__1: $i > $i > $i).
% 1.26/0.74 thf(zip_tseitin_0_type, type, zip_tseitin_0: $i > $i > $i > $o).
% 1.26/0.74 thf(church_46_17_5, conjecture,
% 1.26/0.74 (?[X1:$i]:
% 1.26/0.74 ( ![X2:$i]:
% 1.26/0.74 ( ?[X3:$i]:
% 1.26/0.74 ( ![X4:$i]:
% 1.26/0.74 ( ( ( big_f @ X1 @ X4 ) <=> ( big_f @ X2 @ X4 ) ) =>
% 1.26/0.74 ( ( ( ( big_f @ X1 @ X4 ) <=> ( big_f @ X4 @ X3 ) ) <=>
% 1.26/0.74 ( big_f @ X3 @ X4 ) ) <=>
% 1.26/0.74 ( big_f @ X4 @ X2 ) ) ) ) ) ))).
% 1.26/0.74 thf(zf_stmt_0, axiom,
% 1.26/0.74 (![X4:$i,X3:$i,X1:$i]:
% 1.26/0.74 ( ( zip_tseitin_1 @ X4 @ X3 @ X1 ) <=>
% 1.26/0.74 ( ( zip_tseitin_0 @ X4 @ X3 @ X1 ) <=> ( big_f @ X3 @ X4 ) ) ))).
% 1.26/0.74 thf(zip_derived_cl7, plain,
% 1.26/0.74 (![X0 : $i, X1 : $i, X2 : $i]:
% 1.26/0.74 ( (zip_tseitin_1 @ X0 @ X1 @ X2)
% 1.26/0.74 | (big_f @ X1 @ X0)
% 1.26/0.74 | (zip_tseitin_0 @ X0 @ X1 @ X2))),
% 1.26/0.74 inference('cnf', [status(esa)], [zf_stmt_0])).
% 1.26/0.74 thf(zf_stmt_1, type, zip_tseitin_1 : $i > $i > $i > $o).
% 1.26/0.74 thf(zf_stmt_2, type, zip_tseitin_0 : $i > $i > $i > $o).
% 1.26/0.74 thf(zf_stmt_3, axiom,
% 1.26/0.74 (![X4:$i,X3:$i,X1:$i]:
% 1.26/0.74 ( ( zip_tseitin_0 @ X4 @ X3 @ X1 ) <=>
% 1.26/0.74 ( ( big_f @ X1 @ X4 ) <=> ( big_f @ X4 @ X3 ) ) ))).
% 1.26/0.74 thf(zf_stmt_4, conjecture,
% 1.26/0.74 (?[X1:$i]:
% 1.26/0.74 ( ![X2:$i]:
% 1.26/0.74 ( ?[X3:$i]:
% 1.26/0.74 ( ![X4:$i]:
% 1.26/0.74 ( ( ( big_f @ X1 @ X4 ) <=> ( big_f @ X2 @ X4 ) ) =>
% 1.26/0.74 ( ( zip_tseitin_1 @ X4 @ X3 @ X1 ) <=> ( big_f @ X4 @ X2 ) ) ) ) ) ))).
% 1.26/0.74 thf(zf_stmt_5, negated_conjecture,
% 1.26/0.74 (~( ?[X1:$i]:
% 1.26/0.74 ( ![X2:$i]:
% 1.26/0.74 ( ?[X3:$i]:
% 1.26/0.74 ( ![X4:$i]:
% 1.26/0.74 ( ( ( big_f @ X1 @ X4 ) <=> ( big_f @ X2 @ X4 ) ) =>
% 1.26/0.74 ( ( zip_tseitin_1 @ X4 @ X3 @ X1 ) <=> ( big_f @ X4 @ X2 ) ) ) ) ) ) )),
% 1.26/0.74 inference('cnf.neg', [status(esa)], [zf_stmt_4])).
% 1.26/0.74 thf(zip_derived_cl10, plain,
% 1.26/0.74 (![X0 : $i, X1 : $i]:
% 1.26/0.74 (~ (big_f @ (sk__1 @ X1 @ X0) @ (sk_ @ X0))
% 1.26/0.74 | ~ (zip_tseitin_1 @ (sk__1 @ X1 @ X0) @ X1 @ X0))),
% 1.26/0.74 inference('cnf', [status(esa)], [zf_stmt_5])).
% 1.26/0.74 thf(zip_derived_cl23, plain,
% 1.26/0.74 (![X0 : $i, X1 : $i]:
% 1.26/0.74 ( (zip_tseitin_0 @ (sk__1 @ X1 @ X0) @ X1 @ X0)
% 1.26/0.74 | (big_f @ X1 @ (sk__1 @ X1 @ X0))
% 1.26/0.74 | ~ (big_f @ (sk__1 @ X1 @ X0) @ (sk_ @ X0)))),
% 1.26/0.74 inference('dp-resolution', [status(thm)],
% 1.26/0.74 [zip_derived_cl7, zip_derived_cl10])).
% 1.26/0.74 thf(zip_derived_cl0, plain,
% 1.26/0.74 (![X0 : $i, X1 : $i, X2 : $i]:
% 1.26/0.74 (~ (big_f @ X0 @ X1)
% 1.26/0.74 | (big_f @ X2 @ X0)
% 1.26/0.74 | ~ (zip_tseitin_0 @ X0 @ X1 @ X2))),
% 1.26/0.74 inference('cnf', [status(esa)], [zf_stmt_3])).
% 1.26/0.74 thf(zip_derived_cl36, plain,
% 1.26/0.74 (![X0 : $i, X1 : $i]:
% 1.26/0.74 (~ (big_f @ (sk__1 @ X1 @ X0) @ (sk_ @ X0))
% 1.26/0.74 | (big_f @ X1 @ (sk__1 @ X1 @ X0))
% 1.26/0.74 | (big_f @ X0 @ (sk__1 @ X1 @ X0))
% 1.26/0.74 | ~ (big_f @ (sk__1 @ X1 @ X0) @ X1))),
% 1.26/0.74 inference('dp-resolution', [status(thm)],
% 1.26/0.74 [zip_derived_cl23, zip_derived_cl0])).
% 1.26/0.74 thf(zip_derived_cl43, plain,
% 1.26/0.74 (![X0 : $i]:
% 1.26/0.74 ( (big_f @ X0 @ (sk__1 @ (sk_ @ X0) @ X0))
% 1.26/0.74 | (big_f @ (sk_ @ X0) @ (sk__1 @ (sk_ @ X0) @ X0))
% 1.26/0.74 | ~ (big_f @ (sk__1 @ (sk_ @ X0) @ X0) @ (sk_ @ X0)))),
% 1.26/0.74 inference('eq_fact', [status(thm)], [zip_derived_cl36])).
% 1.26/0.74 thf(zip_derived_cl3, plain,
% 1.26/0.74 (![X0 : $i, X1 : $i, X2 : $i]:
% 1.26/0.74 ( (zip_tseitin_0 @ X0 @ X1 @ X2)
% 1.26/0.74 | (big_f @ X0 @ X1)
% 1.26/0.74 | (big_f @ X2 @ X0))),
% 1.26/0.74 inference('cnf', [status(esa)], [zf_stmt_3])).
% 1.26/0.74 thf(zip_derived_cl11, plain,
% 1.26/0.74 (![X0 : $i, X1 : $i]:
% 1.26/0.74 ( (big_f @ (sk__1 @ X1 @ X0) @ (sk_ @ X0))
% 1.26/0.74 | (zip_tseitin_1 @ (sk__1 @ X1 @ X0) @ X1 @ X0))),
% 1.26/0.74 inference('cnf', [status(esa)], [zf_stmt_5])).
% 1.26/0.74 thf(zip_derived_cl5, plain,
% 1.26/0.74 (![X0 : $i, X1 : $i, X2 : $i]:
% 1.26/0.74 (~ (zip_tseitin_0 @ X0 @ X1 @ X2)
% 1.26/0.74 | (big_f @ X1 @ X0)
% 1.26/0.74 | ~ (zip_tseitin_1 @ X0 @ X1 @ X2))),
% 1.26/0.74 inference('cnf', [status(esa)], [zf_stmt_0])).
% 1.26/0.74 thf(zip_derived_cl21, plain,
% 1.26/0.74 (![X0 : $i, X1 : $i]:
% 1.26/0.74 ( (big_f @ (sk__1 @ X1 @ X0) @ (sk_ @ X0))
% 1.26/0.74 | (big_f @ X1 @ (sk__1 @ X1 @ X0))
% 1.26/0.74 | ~ (zip_tseitin_0 @ (sk__1 @ X1 @ X0) @ X1 @ X0))),
% 1.26/0.74 inference('dp-resolution', [status(thm)],
% 1.26/0.74 [zip_derived_cl11, zip_derived_cl5])).
% 1.26/0.74 thf(zip_derived_cl30, plain,
% 1.26/0.74 (![X0 : $i, X1 : $i]:
% 1.26/0.74 ( (big_f @ X0 @ (sk__1 @ X1 @ X0))
% 1.26/0.74 | (big_f @ (sk__1 @ X1 @ X0) @ X1)
% 1.26/0.74 | (big_f @ X1 @ (sk__1 @ X1 @ X0))
% 1.26/0.74 | (big_f @ (sk__1 @ X1 @ X0) @ (sk_ @ X0)))),
% 1.26/0.74 inference('dp-resolution', [status(thm)],
% 1.26/0.74 [zip_derived_cl3, zip_derived_cl21])).
% 1.26/0.74 thf(zip_derived_cl46, plain,
% 1.26/0.74 (![X0 : $i]:
% 1.26/0.74 ( (big_f @ (sk__1 @ (sk_ @ X0) @ X0) @ (sk_ @ X0))
% 1.26/0.74 | (big_f @ (sk_ @ X0) @ (sk__1 @ (sk_ @ X0) @ X0))
% 1.26/0.74 | (big_f @ X0 @ (sk__1 @ (sk_ @ X0) @ X0)))),
% 1.26/0.74 inference('eq_fact', [status(thm)], [zip_derived_cl30])).
% 1.26/0.74 thf(zip_derived_cl8, plain,
% 1.26/0.74 (![X0 : $i, X1 : $i]:
% 1.26/0.74 ( (big_f @ X0 @ (sk__1 @ X1 @ X0))
% 1.26/0.74 | ~ (big_f @ (sk_ @ X0) @ (sk__1 @ X1 @ X0)))),
% 1.26/0.74 inference('cnf', [status(esa)], [zf_stmt_5])).
% 1.26/0.74 thf(zip_derived_cl53, plain,
% 1.26/0.74 (![X0 : $i]:
% 1.26/0.74 ( (big_f @ X0 @ (sk__1 @ (sk_ @ X0) @ X0))
% 1.26/0.74 | (big_f @ (sk__1 @ (sk_ @ X0) @ X0) @ (sk_ @ X0)))),
% 1.26/0.74 inference('clc', [status(thm)], [zip_derived_cl46, zip_derived_cl8])).
% 1.26/0.74 thf(zip_derived_cl9, plain,
% 1.26/0.74 (![X0 : $i, X1 : $i]:
% 1.26/0.74 ( (big_f @ (sk_ @ X0) @ (sk__1 @ X1 @ X0))
% 1.26/0.74 | ~ (big_f @ X0 @ (sk__1 @ X1 @ X0)))),
% 1.26/0.74 inference('cnf', [status(esa)], [zf_stmt_5])).
% 1.26/0.74 thf(zip_derived_cl11, plain,
% 1.26/0.74 (![X0 : $i, X1 : $i]:
% 1.26/0.74 ( (big_f @ (sk__1 @ X1 @ X0) @ (sk_ @ X0))
% 1.26/0.74 | (zip_tseitin_1 @ (sk__1 @ X1 @ X0) @ X1 @ X0))),
% 1.26/0.74 inference('cnf', [status(esa)], [zf_stmt_5])).
% 1.26/0.74 thf(zip_derived_cl4, plain,
% 1.26/0.74 (![X0 : $i, X1 : $i, X2 : $i]:
% 1.26/0.74 (~ (big_f @ X0 @ X1)
% 1.26/0.74 | (zip_tseitin_0 @ X1 @ X0 @ X2)
% 1.26/0.74 | ~ (zip_tseitin_1 @ X1 @ X0 @ X2))),
% 1.26/0.74 inference('cnf', [status(esa)], [zf_stmt_0])).
% 1.26/0.74 thf(zip_derived_cl20, plain,
% 1.26/0.74 (![X0 : $i, X1 : $i]:
% 1.26/0.74 ( (big_f @ (sk__1 @ X1 @ X0) @ (sk_ @ X0))
% 1.26/0.74 | (zip_tseitin_0 @ (sk__1 @ X1 @ X0) @ X1 @ X0)
% 1.26/0.74 | ~ (big_f @ X1 @ (sk__1 @ X1 @ X0)))),
% 1.26/0.74 inference('dp-resolution', [status(thm)],
% 1.26/0.74 [zip_derived_cl11, zip_derived_cl4])).
% 1.26/0.74 thf(zip_derived_cl1, plain,
% 1.26/0.74 (![X0 : $i, X1 : $i, X2 : $i]:
% 1.26/0.74 (~ (big_f @ X0 @ X1)
% 1.26/0.74 | (big_f @ X1 @ X2)
% 1.26/0.74 | ~ (zip_tseitin_0 @ X1 @ X2 @ X0))),
% 1.26/0.74 inference('cnf', [status(esa)], [zf_stmt_3])).
% 1.26/0.74 thf(zip_derived_cl33, plain,
% 1.26/0.74 (![X0 : $i, X1 : $i]:
% 1.26/0.74 (~ (big_f @ X0 @ (sk__1 @ X0 @ X1))
% 1.26/0.74 | (big_f @ (sk__1 @ X0 @ X1) @ (sk_ @ X1))
% 1.26/0.74 | (big_f @ (sk__1 @ X0 @ X1) @ X0)
% 1.26/0.74 | ~ (big_f @ X1 @ (sk__1 @ X0 @ X1)))),
% 1.26/0.74 inference('dp-resolution', [status(thm)],
% 1.26/0.74 [zip_derived_cl20, zip_derived_cl1])).
% 1.26/0.74 thf(zip_derived_cl50, plain,
% 1.26/0.74 (![X0 : $i]:
% 1.26/0.74 (~ (big_f @ X0 @ (sk__1 @ (sk_ @ X0) @ X0))
% 1.26/0.74 | (big_f @ (sk__1 @ (sk_ @ X0) @ X0) @ (sk_ @ X0))
% 1.26/0.74 | (big_f @ (sk__1 @ (sk_ @ X0) @ X0) @ (sk_ @ X0))
% 1.26/0.74 | ~ (big_f @ X0 @ (sk__1 @ (sk_ @ X0) @ X0)))),
% 1.26/0.74 inference('s_sup-', [status(thm)], [zip_derived_cl9, zip_derived_cl33])).
% 1.26/0.74 thf(zip_derived_cl51, plain,
% 1.26/0.74 (![X0 : $i]:
% 1.26/0.74 ( (big_f @ (sk__1 @ (sk_ @ X0) @ X0) @ (sk_ @ X0))
% 1.26/0.74 | ~ (big_f @ X0 @ (sk__1 @ (sk_ @ X0) @ X0)))),
% 1.26/0.74 inference('simplify', [status(thm)], [zip_derived_cl50])).
% 1.26/0.74 thf(zip_derived_cl54, plain,
% 1.26/0.74 (![X0 : $i]: (big_f @ (sk__1 @ (sk_ @ X0) @ X0) @ (sk_ @ X0))),
% 1.26/0.74 inference('clc', [status(thm)], [zip_derived_cl53, zip_derived_cl51])).
% 1.26/0.74 thf(zip_derived_cl56, plain,
% 1.26/0.74 (![X0 : $i]:
% 1.26/0.74 ( (big_f @ X0 @ (sk__1 @ (sk_ @ X0) @ X0))
% 1.26/0.74 | (big_f @ (sk_ @ X0) @ (sk__1 @ (sk_ @ X0) @ X0)))),
% 1.26/0.74 inference('demod', [status(thm)], [zip_derived_cl43, zip_derived_cl54])).
% 1.26/0.74 thf(zip_derived_cl9, plain,
% 1.26/0.74 (![X0 : $i, X1 : $i]:
% 1.26/0.74 ( (big_f @ (sk_ @ X0) @ (sk__1 @ X1 @ X0))
% 1.26/0.74 | ~ (big_f @ X0 @ (sk__1 @ X1 @ X0)))),
% 1.26/0.74 inference('cnf', [status(esa)], [zf_stmt_5])).
% 1.26/0.74 thf(zip_derived_cl57, plain,
% 1.26/0.74 (![X0 : $i]: (big_f @ (sk_ @ X0) @ (sk__1 @ (sk_ @ X0) @ X0))),
% 1.26/0.74 inference('clc', [status(thm)], [zip_derived_cl56, zip_derived_cl9])).
% 1.26/0.74 thf(zip_derived_cl8, plain,
% 1.26/0.74 (![X0 : $i, X1 : $i]:
% 1.26/0.74 ( (big_f @ X0 @ (sk__1 @ X1 @ X0))
% 1.26/0.74 | ~ (big_f @ (sk_ @ X0) @ (sk__1 @ X1 @ X0)))),
% 1.26/0.74 inference('cnf', [status(esa)], [zf_stmt_5])).
% 1.26/0.74 thf(zip_derived_cl61, plain,
% 1.26/0.74 (![X0 : $i]: (big_f @ X0 @ (sk__1 @ (sk_ @ X0) @ X0))),
% 1.26/0.74 inference('s_sup-', [status(thm)], [zip_derived_cl57, zip_derived_cl8])).
% 1.26/0.74 thf(zip_derived_cl2, plain,
% 1.26/0.74 (![X0 : $i, X1 : $i, X2 : $i]:
% 1.26/0.74 ( (zip_tseitin_0 @ X0 @ X1 @ X2)
% 1.26/0.74 | ~ (big_f @ X0 @ X1)
% 1.26/0.74 | ~ (big_f @ X2 @ X0))),
% 1.26/0.74 inference('cnf', [status(esa)], [zf_stmt_3])).
% 1.26/0.74 thf(zip_derived_cl6, plain,
% 1.26/0.74 (![X0 : $i, X1 : $i, X2 : $i]:
% 1.26/0.74 ( (zip_tseitin_1 @ X0 @ X1 @ X2)
% 1.26/0.74 | ~ (big_f @ X1 @ X0)
% 1.26/0.74 | ~ (zip_tseitin_0 @ X0 @ X1 @ X2))),
% 1.26/0.74 inference('cnf', [status(esa)], [zf_stmt_0])).
% 1.26/0.74 thf(zip_derived_cl10, plain,
% 1.26/0.74 (![X0 : $i, X1 : $i]:
% 1.26/0.74 (~ (big_f @ (sk__1 @ X1 @ X0) @ (sk_ @ X0))
% 1.26/0.74 | ~ (zip_tseitin_1 @ (sk__1 @ X1 @ X0) @ X1 @ X0))),
% 1.26/0.74 inference('cnf', [status(esa)], [zf_stmt_5])).
% 1.26/0.74 thf(zip_derived_cl22, plain,
% 1.26/0.74 (![X0 : $i, X1 : $i]:
% 1.26/0.74 (~ (zip_tseitin_0 @ (sk__1 @ X1 @ X0) @ X1 @ X0)
% 1.26/0.74 | ~ (big_f @ X1 @ (sk__1 @ X1 @ X0))
% 1.26/0.74 | ~ (big_f @ (sk__1 @ X1 @ X0) @ (sk_ @ X0)))),
% 1.26/0.74 inference('dp-resolution', [status(thm)],
% 1.26/0.74 [zip_derived_cl6, zip_derived_cl10])).
% 1.26/0.74 thf(zip_derived_cl27, plain,
% 1.26/0.74 (![X0 : $i, X1 : $i]:
% 1.26/0.74 (~ (big_f @ X0 @ (sk__1 @ X1 @ X0))
% 1.26/0.74 | ~ (big_f @ (sk__1 @ X1 @ X0) @ X1)
% 1.26/0.74 | ~ (big_f @ (sk__1 @ X1 @ X0) @ (sk_ @ X0))
% 1.26/0.74 | ~ (big_f @ X1 @ (sk__1 @ X1 @ X0)))),
% 1.26/0.74 inference('dp-resolution', [status(thm)],
% 1.26/0.74 [zip_derived_cl2, zip_derived_cl22])).
% 1.26/0.74 thf(zip_derived_cl66, plain,
% 1.26/0.74 (![X0 : $i]:
% 1.26/0.74 (~ (big_f @ (sk__1 @ (sk_ @ X0) @ X0) @ (sk_ @ X0))
% 1.26/0.74 | ~ (big_f @ (sk__1 @ (sk_ @ X0) @ X0) @ (sk_ @ X0))
% 1.26/0.74 | ~ (big_f @ (sk_ @ X0) @ (sk__1 @ (sk_ @ X0) @ X0)))),
% 1.26/0.74 inference('s_sup-', [status(thm)], [zip_derived_cl61, zip_derived_cl27])).
% 1.26/0.74 thf(zip_derived_cl54, plain,
% 1.26/0.74 (![X0 : $i]: (big_f @ (sk__1 @ (sk_ @ X0) @ X0) @ (sk_ @ X0))),
% 1.26/0.74 inference('clc', [status(thm)], [zip_derived_cl53, zip_derived_cl51])).
% 1.26/0.74 thf(zip_derived_cl54, plain,
% 1.26/0.74 (![X0 : $i]: (big_f @ (sk__1 @ (sk_ @ X0) @ X0) @ (sk_ @ X0))),
% 1.26/0.74 inference('clc', [status(thm)], [zip_derived_cl53, zip_derived_cl51])).
% 1.26/0.74 thf(zip_derived_cl57, plain,
% 1.26/0.74 (![X0 : $i]: (big_f @ (sk_ @ X0) @ (sk__1 @ (sk_ @ X0) @ X0))),
% 1.26/0.74 inference('clc', [status(thm)], [zip_derived_cl56, zip_derived_cl9])).
% 1.26/0.74 thf(zip_derived_cl70, plain, ($false),
% 1.26/0.74 inference('demod', [status(thm)],
% 1.26/0.74 [zip_derived_cl66, zip_derived_cl54, zip_derived_cl54,
% 1.26/0.74 zip_derived_cl57])).
% 1.26/0.74
% 1.26/0.74 % SZS output end Refutation
% 1.26/0.74
% 1.26/0.74
% 1.26/0.74 % Terminating...
% 1.49/0.80 % Runner terminated.
% 1.49/0.81 % Zipperpin 1.5 exiting
%------------------------------------------------------------------------------