TSTP Solution File: FLD014-3 by Zipperpin---2.1.9999

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Zipperpin---2.1.9999
% Problem  : FLD014-3 : TPTP v8.1.2. Bugfixed v2.1.0.
% Transfm  : NO INFORMATION
% Format   : NO INFORMATION
% Command  : python3 /export/starexec/sandbox/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox/tmp/tmp.YmguIuumy0 true

% Computer : n006.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 : Wed Aug 30 22:39:10 EDT 2023

% Result   : Unsatisfiable 22.89s 3.91s
% Output   : Refutation 22.89s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.12  % Problem  : FLD014-3 : TPTP v8.1.2. Bugfixed v2.1.0.
% 0.00/0.13  % Command  : python3 /export/starexec/sandbox/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox/tmp/tmp.YmguIuumy0 true
% 0.13/0.34  % Computer : n006.cluster.edu
% 0.13/0.34  % Model    : x86_64 x86_64
% 0.13/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.34  % Memory   : 8042.1875MB
% 0.13/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.34  % CPULimit : 300
% 0.13/0.34  % WCLimit  : 300
% 0.13/0.34  % DateTime : Sun Aug 27 23:52:06 EDT 2023
% 0.13/0.34  % CPUTime  : 
% 0.13/0.34  % Running portfolio for 300 s
% 0.13/0.34  % File         : /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.13/0.34  % Number of cores: 8
% 0.13/0.35  % Python version: Python 3.6.8
% 0.13/0.35  % Running in FO mode
% 0.20/0.64  % Total configuration time : 435
% 0.20/0.64  % Estimated wc time : 1092
% 0.20/0.64  % Estimated cpu time (7 cpus) : 156.0
% 0.20/0.70  % /export/starexec/sandbox/solver/bin/fo/fo6_bce.sh running for 75s
% 0.20/0.73  % /export/starexec/sandbox/solver/bin/fo/fo3_bce.sh running for 75s
% 0.20/0.73  % /export/starexec/sandbox/solver/bin/fo/fo1_av.sh running for 75s
% 0.20/0.74  % /export/starexec/sandbox/solver/bin/fo/fo7.sh running for 63s
% 0.20/0.74  % /export/starexec/sandbox/solver/bin/fo/fo13.sh running for 50s
% 0.20/0.74  % /export/starexec/sandbox/solver/bin/fo/fo5.sh running for 50s
% 0.20/0.74  % /export/starexec/sandbox/solver/bin/fo/fo4.sh running for 50s
% 22.89/3.91  % Solved by fo/fo1_av.sh.
% 22.89/3.91  % done 4340 iterations in 3.162s
% 22.89/3.91  % SZS status Theorem for '/export/starexec/sandbox/benchmark/theBenchmark.p'
% 22.89/3.91  % SZS output start Refutation
% 22.89/3.91  thf(sum_type, type, sum: $i > $i > $i > $o).
% 22.89/3.91  thf(b_type, type, b: $i).
% 22.89/3.91  thf(a_type, type, a: $i).
% 22.89/3.91  thf(additive_identity_type, type, additive_identity: $i).
% 22.89/3.91  thf(additive_inverse_type, type, additive_inverse: $i > $i).
% 22.89/3.91  thf(defined_type, type, defined: $i > $o).
% 22.89/3.91  thf(existence_of_inverse_addition, axiom,
% 22.89/3.91    (( sum @ ( additive_inverse @ X ) @ X @ additive_identity ) | 
% 22.89/3.91     ( ~( defined @ X ) ))).
% 22.89/3.91  thf(zip_derived_cl3, plain,
% 22.89/3.91      (![X0 : $i]:
% 22.89/3.91         ( (sum @ (additive_inverse @ X0) @ X0 @ additive_identity)
% 22.89/3.91          | ~ (defined @ X0))),
% 22.89/3.91      inference('cnf', [status(esa)], [existence_of_inverse_addition])).
% 22.89/3.91  thf(commutativity_addition, axiom,
% 22.89/3.91    (( sum @ Y @ X @ Z ) | ( ~( sum @ X @ Y @ Z ) ))).
% 22.89/3.91  thf(zip_derived_cl4, plain,
% 22.89/3.91      (![X0 : $i, X1 : $i, X2 : $i]:
% 22.89/3.91         ( (sum @ X0 @ X1 @ X2) | ~ (sum @ X1 @ X0 @ X2))),
% 22.89/3.91      inference('cnf', [status(esa)], [commutativity_addition])).
% 22.89/3.91  thf(zip_derived_cl52, plain,
% 22.89/3.91      (![X0 : $i]:
% 22.89/3.91         (~ (defined @ X0)
% 22.89/3.91          |  (sum @ X0 @ (additive_inverse @ X0) @ additive_identity))),
% 22.89/3.91      inference('s_sup-', [status(thm)], [zip_derived_cl3, zip_derived_cl4])).
% 22.89/3.91  thf(sum_3, conjecture, (~( sum @ additive_identity @ a @ b ))).
% 22.89/3.91  thf(zf_stmt_0, negated_conjecture, (sum @ additive_identity @ a @ b),
% 22.89/3.91    inference('cnf.neg', [status(esa)], [sum_3])).
% 22.89/3.91  thf(zip_derived_cl28, plain, ( (sum @ additive_identity @ a @ b)),
% 22.89/3.91      inference('cnf', [status(esa)], [zf_stmt_0])).
% 22.89/3.91  thf(associativity_addition_2, axiom,
% 22.89/3.91    (( sum @ U @ Z @ W ) | ( ~( sum @ X @ Y @ U ) ) | 
% 22.89/3.91     ( ~( sum @ Y @ Z @ V ) ) | ( ~( sum @ X @ V @ W ) ))).
% 22.89/3.91  thf(zip_derived_cl1, plain,
% 22.89/3.91      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i, X5 : $i]:
% 22.89/3.91         ( (sum @ X0 @ X1 @ X2)
% 22.89/3.91          | ~ (sum @ X3 @ X4 @ X0)
% 22.89/3.91          | ~ (sum @ X4 @ X1 @ X5)
% 22.89/3.91          | ~ (sum @ X3 @ X5 @ X2))),
% 22.89/3.91      inference('cnf', [status(esa)], [associativity_addition_2])).
% 22.89/3.91  thf(zip_derived_cl45, plain,
% 22.89/3.91      (![X0 : $i, X1 : $i, X2 : $i]:
% 22.89/3.91         ( (sum @ b @ X1 @ X0)
% 22.89/3.91          | ~ (sum @ a @ X1 @ X2)
% 22.89/3.91          | ~ (sum @ additive_identity @ X2 @ X0))),
% 22.89/3.91      inference('s_sup-', [status(thm)], [zip_derived_cl28, zip_derived_cl1])).
% 22.89/3.91  thf(zip_derived_cl837, plain,
% 22.89/3.91      (![X0 : $i]:
% 22.89/3.91         (~ (defined @ a)
% 22.89/3.91          |  (sum @ b @ (additive_inverse @ a) @ X0)
% 22.89/3.91          | ~ (sum @ additive_identity @ additive_identity @ X0))),
% 22.89/3.91      inference('s_sup-', [status(thm)], [zip_derived_cl52, zip_derived_cl45])).
% 22.89/3.91  thf(a_is_defined, axiom, (defined @ a)).
% 22.89/3.91  thf(zip_derived_cl26, plain, ( (defined @ a)),
% 22.89/3.91      inference('cnf', [status(esa)], [a_is_defined])).
% 22.89/3.91  thf(zip_derived_cl855, plain,
% 22.89/3.91      (![X0 : $i]:
% 22.89/3.91         ( (sum @ b @ (additive_inverse @ a) @ X0)
% 22.89/3.91          | ~ (sum @ additive_identity @ additive_identity @ X0))),
% 22.89/3.91      inference('demod', [status(thm)], [zip_derived_cl837, zip_derived_cl26])).
% 22.89/3.91  thf(existence_of_identity_addition, axiom,
% 22.89/3.91    (( sum @ additive_identity @ X @ X ) | ( ~( defined @ X ) ))).
% 22.89/3.91  thf(zip_derived_cl2, plain,
% 22.89/3.91      (![X0 : $i]: ( (sum @ additive_identity @ X0 @ X0) | ~ (defined @ X0))),
% 22.89/3.91      inference('cnf', [status(esa)], [existence_of_identity_addition])).
% 22.89/3.91  thf(zip_derived_cl4, plain,
% 22.89/3.91      (![X0 : $i, X1 : $i, X2 : $i]:
% 22.89/3.91         ( (sum @ X0 @ X1 @ X2) | ~ (sum @ X1 @ X0 @ X2))),
% 22.89/3.91      inference('cnf', [status(esa)], [commutativity_addition])).
% 22.89/3.91  thf(zip_derived_cl40, plain,
% 22.89/3.91      (![X0 : $i]: (~ (defined @ X0) |  (sum @ X0 @ additive_identity @ X0))),
% 22.89/3.91      inference('s_sup-', [status(thm)], [zip_derived_cl2, zip_derived_cl4])).
% 22.89/3.91  thf(zip_derived_cl3, plain,
% 22.89/3.91      (![X0 : $i]:
% 22.89/3.91         ( (sum @ (additive_inverse @ X0) @ X0 @ additive_identity)
% 22.89/3.91          | ~ (defined @ X0))),
% 22.89/3.91      inference('cnf', [status(esa)], [existence_of_inverse_addition])).
% 22.89/3.91  thf(zip_derived_cl1, plain,
% 22.89/3.91      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i, X5 : $i]:
% 22.89/3.91         ( (sum @ X0 @ X1 @ X2)
% 22.89/3.91          | ~ (sum @ X3 @ X4 @ X0)
% 22.89/3.91          | ~ (sum @ X4 @ X1 @ X5)
% 22.89/3.91          | ~ (sum @ X3 @ X5 @ X2))),
% 22.89/3.91      inference('cnf', [status(esa)], [associativity_addition_2])).
% 22.89/3.91  thf(zip_derived_cl51, plain,
% 22.89/3.91      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 22.89/3.91         (~ (defined @ X0)
% 22.89/3.91          |  (sum @ additive_identity @ X2 @ X1)
% 22.89/3.91          | ~ (sum @ X0 @ X2 @ X3)
% 22.89/3.91          | ~ (sum @ (additive_inverse @ X0) @ X3 @ X1))),
% 22.89/3.91      inference('s_sup-', [status(thm)], [zip_derived_cl3, zip_derived_cl1])).
% 22.89/3.91  thf(zip_derived_cl1093, plain,
% 22.89/3.91      (![X0 : $i, X1 : $i]:
% 22.89/3.91         (~ (defined @ (additive_inverse @ X0))
% 22.89/3.91          | ~ (defined @ X0)
% 22.89/3.91          |  (sum @ additive_identity @ X1 @ (additive_inverse @ X0))
% 22.89/3.91          | ~ (sum @ X0 @ X1 @ additive_identity))),
% 22.89/3.91      inference('s_sup-', [status(thm)], [zip_derived_cl40, zip_derived_cl51])).
% 22.89/3.91  thf(well_definedness_of_additive_inverse, axiom,
% 22.89/3.91    (( defined @ ( additive_inverse @ X ) ) | ( ~( defined @ X ) ))).
% 22.89/3.91  thf(zip_derived_cl14, plain,
% 22.89/3.91      (![X0 : $i]: ( (defined @ (additive_inverse @ X0)) | ~ (defined @ X0))),
% 22.89/3.91      inference('cnf', [status(esa)], [well_definedness_of_additive_inverse])).
% 22.89/3.91  thf(zip_derived_cl34305, plain,
% 22.89/3.91      (![X0 : $i, X1 : $i]:
% 22.89/3.91         (~ (sum @ X0 @ X1 @ additive_identity)
% 22.89/3.91          |  (sum @ additive_identity @ X1 @ (additive_inverse @ X0))
% 22.89/3.91          | ~ (defined @ X0))),
% 22.89/3.91      inference('clc', [status(thm)], [zip_derived_cl1093, zip_derived_cl14])).
% 22.89/3.91  thf(not_sum_4, conjecture,
% 22.89/3.91    (sum @
% 22.89/3.91     additive_identity @ ( additive_inverse @ a ) @ ( additive_inverse @ b ))).
% 22.89/3.91  thf(zf_stmt_1, negated_conjecture,
% 22.89/3.91    (~( sum @
% 22.89/3.91        additive_identity @ ( additive_inverse @ a ) @ ( additive_inverse @ b ) )),
% 22.89/3.91    inference('cnf.neg', [status(esa)], [not_sum_4])).
% 22.89/3.91  thf(zip_derived_cl29, plain,
% 22.89/3.91      (~ (sum @ additive_identity @ (additive_inverse @ a) @ 
% 22.89/3.91          (additive_inverse @ b))),
% 22.89/3.91      inference('cnf', [status(esa)], [zf_stmt_1])).
% 22.89/3.91  thf(zip_derived_cl34367, plain,
% 22.89/3.91      ((~ (defined @ b)
% 22.89/3.91        | ~ (sum @ b @ (additive_inverse @ a) @ additive_identity))),
% 22.89/3.91      inference('s_sup-', [status(thm)],
% 22.89/3.91                [zip_derived_cl34305, zip_derived_cl29])).
% 22.89/3.91  thf(b_is_defined, axiom, (defined @ b)).
% 22.89/3.91  thf(zip_derived_cl27, plain, ( (defined @ b)),
% 22.89/3.91      inference('cnf', [status(esa)], [b_is_defined])).
% 22.89/3.91  thf(zip_derived_cl34396, plain,
% 22.89/3.91      (~ (sum @ b @ (additive_inverse @ a) @ additive_identity)),
% 22.89/3.91      inference('demod', [status(thm)], [zip_derived_cl34367, zip_derived_cl27])).
% 22.89/3.91  thf(zip_derived_cl34903, plain,
% 22.89/3.91      (~ (sum @ additive_identity @ additive_identity @ additive_identity)),
% 22.89/3.91      inference('s_sup-', [status(thm)],
% 22.89/3.91                [zip_derived_cl855, zip_derived_cl34396])).
% 22.89/3.91  thf(zip_derived_cl52, plain,
% 22.89/3.91      (![X0 : $i]:
% 22.89/3.91         (~ (defined @ X0)
% 22.89/3.91          |  (sum @ X0 @ (additive_inverse @ X0) @ additive_identity))),
% 22.89/3.91      inference('s_sup-', [status(thm)], [zip_derived_cl3, zip_derived_cl4])).
% 22.89/3.91  thf(zip_derived_cl52, plain,
% 22.89/3.91      (![X0 : $i]:
% 22.89/3.91         (~ (defined @ X0)
% 22.89/3.91          |  (sum @ X0 @ (additive_inverse @ X0) @ additive_identity))),
% 22.89/3.91      inference('s_sup-', [status(thm)], [zip_derived_cl3, zip_derived_cl4])).
% 22.89/3.91  thf(zip_derived_cl2, plain,
% 22.89/3.91      (![X0 : $i]: ( (sum @ additive_identity @ X0 @ X0) | ~ (defined @ X0))),
% 22.89/3.91      inference('cnf', [status(esa)], [existence_of_identity_addition])).
% 22.89/3.91  thf(zip_derived_cl28, plain, ( (sum @ additive_identity @ a @ b)),
% 22.89/3.91      inference('cnf', [status(esa)], [zf_stmt_0])).
% 22.89/3.91  thf(zip_derived_cl4, plain,
% 22.89/3.91      (![X0 : $i, X1 : $i, X2 : $i]:
% 22.89/3.91         ( (sum @ X0 @ X1 @ X2) | ~ (sum @ X1 @ X0 @ X2))),
% 22.89/3.91      inference('cnf', [status(esa)], [commutativity_addition])).
% 22.89/3.91  thf(zip_derived_cl34, plain, ( (sum @ a @ additive_identity @ b)),
% 22.89/3.91      inference('s_sup-', [status(thm)], [zip_derived_cl28, zip_derived_cl4])).
% 22.89/3.91  thf(associativity_addition_1, axiom,
% 22.89/3.91    (( sum @ X @ V @ W ) | ( ~( sum @ X @ Y @ U ) ) | 
% 22.89/3.91     ( ~( sum @ Y @ Z @ V ) ) | ( ~( sum @ U @ Z @ W ) ))).
% 22.89/3.91  thf(zip_derived_cl0, plain,
% 22.89/3.91      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i, X5 : $i]:
% 22.89/3.91         ( (sum @ X0 @ X1 @ X2)
% 22.89/3.91          | ~ (sum @ X0 @ X3 @ X4)
% 22.89/3.91          | ~ (sum @ X3 @ X5 @ X1)
% 22.89/3.91          | ~ (sum @ X4 @ X5 @ X2))),
% 22.89/3.91      inference('cnf', [status(esa)], [associativity_addition_1])).
% 22.89/3.91  thf(zip_derived_cl37, plain,
% 22.89/3.91      (![X0 : $i, X1 : $i, X2 : $i]:
% 22.89/3.91         ( (sum @ a @ X1 @ X0)
% 22.89/3.91          | ~ (sum @ additive_identity @ X2 @ X1)
% 22.89/3.91          | ~ (sum @ b @ X2 @ X0))),
% 22.89/3.91      inference('s_sup-', [status(thm)], [zip_derived_cl34, zip_derived_cl0])).
% 22.89/3.91  thf(zip_derived_cl77, plain,
% 22.89/3.91      (![X0 : $i, X1 : $i]:
% 22.89/3.91         (~ (defined @ X0) |  (sum @ a @ X0 @ X1) | ~ (sum @ b @ X0 @ X1))),
% 22.89/3.91      inference('s_sup-', [status(thm)], [zip_derived_cl2, zip_derived_cl37])).
% 22.89/3.91  thf(zip_derived_cl93, plain,
% 22.89/3.91      ((~ (defined @ b)
% 22.89/3.91        | ~ (defined @ (additive_inverse @ b))
% 22.89/3.91        |  (sum @ a @ (additive_inverse @ b) @ additive_identity))),
% 22.89/3.91      inference('s_sup-', [status(thm)], [zip_derived_cl52, zip_derived_cl77])).
% 22.89/3.91  thf(zip_derived_cl27, plain, ( (defined @ b)),
% 22.89/3.91      inference('cnf', [status(esa)], [b_is_defined])).
% 22.89/3.91  thf(zip_derived_cl95, plain,
% 22.89/3.91      ((~ (defined @ (additive_inverse @ b))
% 22.89/3.91        |  (sum @ a @ (additive_inverse @ b) @ additive_identity))),
% 22.89/3.91      inference('demod', [status(thm)], [zip_derived_cl93, zip_derived_cl27])).
% 22.89/3.91  thf(zip_derived_cl98, plain,
% 22.89/3.91      (( (sum @ a @ (additive_inverse @ b) @ additive_identity))
% 22.89/3.91         <= (( (sum @ a @ (additive_inverse @ b) @ additive_identity)))),
% 22.89/3.91      inference('split', [status(esa)], [zip_derived_cl95])).
% 22.89/3.91  thf(zip_derived_cl14, plain,
% 22.89/3.91      (![X0 : $i]: ( (defined @ (additive_inverse @ X0)) | ~ (defined @ X0))),
% 22.89/3.91      inference('cnf', [status(esa)], [well_definedness_of_additive_inverse])).
% 22.89/3.91  thf(zip_derived_cl99, plain,
% 22.89/3.91      ((~ (defined @ (additive_inverse @ b)))
% 22.89/3.91         <= (~ ( (defined @ (additive_inverse @ b))))),
% 22.89/3.91      inference('split', [status(esa)], [zip_derived_cl95])).
% 22.89/3.91  thf(zip_derived_cl108, plain,
% 22.89/3.91      ((~ (defined @ b)) <= (~ ( (defined @ (additive_inverse @ b))))),
% 22.89/3.91      inference('s_sup-', [status(thm)], [zip_derived_cl14, zip_derived_cl99])).
% 22.89/3.91  thf(zip_derived_cl27, plain, ( (defined @ b)),
% 22.89/3.91      inference('cnf', [status(esa)], [b_is_defined])).
% 22.89/3.91  thf('0', plain, (( (defined @ (additive_inverse @ b)))),
% 22.89/3.91      inference('demod', [status(thm)], [zip_derived_cl108, zip_derived_cl27])).
% 22.89/3.91  thf('1', plain,
% 22.89/3.91      (( (sum @ a @ (additive_inverse @ b) @ additive_identity)) | 
% 22.89/3.91       ~ ( (defined @ (additive_inverse @ b)))),
% 22.89/3.91      inference('split', [status(esa)], [zip_derived_cl95])).
% 22.89/3.91  thf('2', plain, (( (sum @ a @ (additive_inverse @ b) @ additive_identity))),
% 22.89/3.91      inference('sat_resolution*', [status(thm)], ['0', '1'])).
% 22.89/3.91  thf(zip_derived_cl111, plain,
% 22.89/3.91      ( (sum @ a @ (additive_inverse @ b) @ additive_identity)),
% 22.89/3.91      inference('simpl_trail', [status(thm)], [zip_derived_cl98, '2'])).
% 22.89/3.91  thf(zip_derived_cl28, plain, ( (sum @ additive_identity @ a @ b)),
% 22.89/3.91      inference('cnf', [status(esa)], [zf_stmt_0])).
% 22.89/3.91  thf(zip_derived_cl0, plain,
% 22.89/3.91      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i, X5 : $i]:
% 22.89/3.91         ( (sum @ X0 @ X1 @ X2)
% 22.89/3.91          | ~ (sum @ X0 @ X3 @ X4)
% 22.89/3.91          | ~ (sum @ X3 @ X5 @ X1)
% 22.89/3.91          | ~ (sum @ X4 @ X5 @ X2))),
% 22.89/3.91      inference('cnf', [status(esa)], [associativity_addition_1])).
% 22.89/3.91  thf(zip_derived_cl30, plain,
% 22.89/3.91      (![X0 : $i, X1 : $i, X2 : $i]:
% 22.89/3.91         ( (sum @ additive_identity @ X1 @ X0)
% 22.89/3.91          | ~ (sum @ a @ X2 @ X1)
% 22.89/3.91          | ~ (sum @ b @ X2 @ X0))),
% 22.89/3.91      inference('s_sup-', [status(thm)], [zip_derived_cl28, zip_derived_cl0])).
% 22.89/3.91  thf(zip_derived_cl132, plain,
% 22.89/3.91      (![X0 : $i]:
% 22.89/3.91         ( (sum @ additive_identity @ additive_identity @ X0)
% 22.89/3.91          | ~ (sum @ b @ (additive_inverse @ b) @ X0))),
% 22.89/3.91      inference('s_sup-', [status(thm)], [zip_derived_cl111, zip_derived_cl30])).
% 22.89/3.91  thf(zip_derived_cl149, plain,
% 22.89/3.91      ((~ (defined @ b)
% 22.89/3.91        |  (sum @ additive_identity @ additive_identity @ additive_identity))),
% 22.89/3.91      inference('s_sup-', [status(thm)], [zip_derived_cl52, zip_derived_cl132])).
% 22.89/3.91  thf(zip_derived_cl27, plain, ( (defined @ b)),
% 22.89/3.91      inference('cnf', [status(esa)], [b_is_defined])).
% 22.89/3.91  thf(zip_derived_cl150, plain,
% 22.89/3.91      ( (sum @ additive_identity @ additive_identity @ additive_identity)),
% 22.89/3.91      inference('demod', [status(thm)], [zip_derived_cl149, zip_derived_cl27])).
% 22.89/3.91  thf(zip_derived_cl34904, plain, ($false),
% 22.89/3.91      inference('demod', [status(thm)],
% 22.89/3.91                [zip_derived_cl34903, zip_derived_cl150])).
% 22.89/3.91  
% 22.89/3.91  % SZS output end Refutation
% 22.89/3.91  
% 22.89/3.91  
% 22.89/3.91  % Terminating...
% 23.15/3.99  % Runner terminated.
% 23.15/4.00  % Zipperpin 1.5 exiting
%------------------------------------------------------------------------------