%------------------------------------------------------------------------------
% File : Zipperpin---2.1.9999
% Problem : CSR021+1 : TPTP v9.2.0. Bugfixed v3.1.0.
% Transfm : none
% Format : tptp:raw
% Command : python3 /export/starexec/sandbox/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox/tmp/tmp.TN5ipj06BY true
% Computer : n025.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 04:30:51 PM UTC 2025
% Result : Theorem 0.57s 0.99s
% Output : Refutation 0.57s
% Verified :
% SZS Type : -
% Comments :
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.13 % Problem : CSR021+1 : TPTP v9.2.0. Bugfixed v3.1.0.
% 0.03/0.14 % Command : python3 /export/starexec/sandbox/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox/tmp/tmp.TN5ipj06BY true
% 0.12/0.35 % Computer : n025.cluster.edu
% 0.12/0.35 % Model : x86_64 x86_64
% 0.12/0.35 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.35 % Memory : 8042.1875MB
% 0.12/0.35 % OS : Linux 3.10.0-693.el7.x86_64
% 0.12/0.35 % CPULimit : 300
% 0.12/0.35 % WCLimit : 300
% 0.12/0.35 % DateTime : Wed Oct 1 14:56:53 EDT 2025
% 0.12/0.35 % CPUTime :
% 0.12/0.35 % Running portfolio for 300 s
% 0.12/0.35 % File : /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.12/0.35 % Number of cores: 8
% 0.12/0.35 % Python version: Python 3.6.8
% 0.12/0.36 % Running in FO mode
% 0.56/0.67 % Total configuration time : 435
% 0.56/0.67 % Estimated wc time : 1092
% 0.56/0.67 % Estimated cpu time (7 cpus) : 156.0
% 0.56/0.79 % /export/starexec/sandbox/solver/bin/fo/fo3_bce.sh running for 75s
% 0.56/0.79 % /export/starexec/sandbox/solver/bin/fo/fo6_bce.sh running for 75s
% 0.56/0.80 % /export/starexec/sandbox/solver/bin/fo/fo1_av.sh running for 75s
% 0.56/0.80 % /export/starexec/sandbox/solver/bin/fo/fo13.sh running for 50s
% 0.56/0.80 % /export/starexec/sandbox/solver/bin/fo/fo7.sh running for 63s
% 0.56/0.80 % /export/starexec/sandbox/solver/bin/fo/fo4.sh running for 50s
% 0.56/0.80 % /export/starexec/sandbox/solver/bin/fo/fo5.sh running for 50s
% 0.57/0.99 % /export/starexec/sandbox/solver/bin/fo/fo1_lcnf.sh running for 50s
% 0.57/0.99 % Solved by fo/fo7.sh.
% 0.57/0.99 % done 279 iterations in 0.113s
% 0.57/0.99 % SZS status Theorem for '/export/starexec/sandbox/benchmark/theBenchmark.p'
% 0.57/0.99 % SZS output start Refutation
% 0.57/0.99 thf(zip_tseitin_8_type, type, zip_tseitin_8: $i > $i > $i > $o).
% 0.57/0.99 thf(push_type, type, push: $i).
% 0.57/0.99 thf(backwards_type, type, backwards: $i).
% 0.57/0.99 thf(zip_tseitin_12_type, type, zip_tseitin_12: $i > $i > $o).
% 0.57/0.99 thf(zip_tseitin_6_type, type, zip_tseitin_6: $i > $i > $i > $o).
% 0.57/0.99 thf(n3_type, type, n3: $i).
% 0.57/0.99 thf(happens_type, type, happens: $i > $i > $o).
% 0.57/0.99 thf(n1_type, type, n1: $i).
% 0.57/0.99 thf(forwards_type, type, forwards: $i).
% 0.57/0.99 thf(zip_tseitin_3_type, type, zip_tseitin_3: $i > $i > $i > $o).
% 0.57/0.99 thf(n2_type, type, n2: $i).
% 0.57/0.99 thf(pull_type, type, pull: $i).
% 0.57/0.99 thf(zip_tseitin_7_type, type, zip_tseitin_7: $i > $i > $i > $o).
% 0.57/0.99 thf(zip_tseitin_10_type, type, zip_tseitin_10: $i > $i > $o).
% 0.57/0.99 thf(plus_type, type, plus: $i > $i > $i).
% 0.57/0.99 thf(spinning_type, type, spinning: $i).
% 0.57/0.99 thf(holdsAt_type, type, holdsAt: $i > $i > $o).
% 0.57/0.99 thf(n0_type, type, n0: $i).
% 0.57/0.99 thf(terminates_type, type, terminates: $i > $i > $i > $o).
% 0.57/0.99 thf(zip_tseitin_11_type, type, zip_tseitin_11: $i > $i > $o).
% 0.57/0.99 thf(zip_tseitin_5_type, type, zip_tseitin_5: $i > $i > $i > $o).
% 0.57/0.99 thf(zip_tseitin_4_type, type, zip_tseitin_4: $i > $i > $i > $o).
% 0.57/0.99 thf(zip_tseitin_9_type, type, zip_tseitin_9: $i > $i > $o).
% 0.57/0.99 thf(happens_all_defn, axiom,
% 0.57/0.99 (![Event:$i,Time:$i]:
% 0.57/0.99 ( ( happens @ Event @ Time ) <=>
% 0.57/0.99 ( ( ( ( Time ) = ( n2 ) ) & ( ( Event ) = ( push ) ) ) |
% 0.57/0.99 ( ( ( Time ) = ( n2 ) ) & ( ( Event ) = ( pull ) ) ) |
% 0.57/0.99 ( ( ( Time ) = ( n1 ) ) & ( ( Event ) = ( pull ) ) ) |
% 0.57/0.99 ( ( ( Time ) = ( n0 ) ) & ( ( Event ) = ( push ) ) ) ) ))).
% 0.57/0.99 thf(zf_stmt_0, axiom,
% 0.57/0.99 (![Time:$i,Event:$i]:
% 0.57/0.99 ( ( zip_tseitin_9 @ Time @ Event ) <=>
% 0.57/0.99 ( ( ( Event ) = ( push ) ) & ( ( Time ) = ( n2 ) ) ) ))).
% 0.57/0.99 thf(zip_derived_cl75, plain,
% 0.57/0.99 (![X0 : $i, X1 : $i]:
% 0.57/0.99 ( (zip_tseitin_9 @ X0 @ X1) | ((X0) != (n2)) | ((X1) != (push)))),
% 0.57/0.99 inference('cnf', [status(esa)], [zf_stmt_0])).
% 0.57/0.99 thf(plus1_1, axiom, (( plus @ n1 @ n1 ) = ( n2 ))).
% 0.57/0.99 thf(zip_derived_cl98, plain, (((plus @ n1 @ n1) = (n2))),
% 0.57/0.99 inference('cnf', [status(esa)], [plus1_1])).
% 0.57/0.99 thf(zip_derived_cl284, plain,
% 0.57/0.99 (![X0 : $i, X1 : $i]:
% 0.57/0.99 ( (zip_tseitin_9 @ X0 @ X1)
% 0.57/0.99 | ((X0) != (plus @ n1 @ n1))
% 0.57/0.99 | ((X1) != (push)))),
% 0.57/0.99 inference('demod', [status(thm)], [zip_derived_cl75, zip_derived_cl98])).
% 0.57/0.99 thf(zf_stmt_1, type, zip_tseitin_12 : $i > $i > $o).
% 0.57/0.99 thf(zf_stmt_2, axiom,
% 0.57/0.99 (![Time:$i,Event:$i]:
% 0.57/0.99 ( ( zip_tseitin_12 @ Time @ Event ) <=>
% 0.57/0.99 ( ( ( Event ) = ( push ) ) & ( ( Time ) = ( n0 ) ) ) ))).
% 0.57/0.99 thf(zf_stmt_3, type, zip_tseitin_11 : $i > $i > $o).
% 0.57/0.99 thf(zf_stmt_4, axiom,
% 0.57/0.99 (![Time:$i,Event:$i]:
% 0.57/0.99 ( ( zip_tseitin_11 @ Time @ Event ) <=>
% 0.57/0.99 ( ( ( Event ) = ( pull ) ) & ( ( Time ) = ( n1 ) ) ) ))).
% 0.57/0.99 thf(zf_stmt_5, type, zip_tseitin_10 : $i > $i > $o).
% 0.57/0.99 thf(zf_stmt_6, axiom,
% 0.57/0.99 (![Time:$i,Event:$i]:
% 0.57/0.99 ( ( zip_tseitin_10 @ Time @ Event ) <=>
% 0.57/0.99 ( ( ( Event ) = ( pull ) ) & ( ( Time ) = ( n2 ) ) ) ))).
% 0.57/0.99 thf(zf_stmt_7, type, zip_tseitin_9 : $i > $i > $o).
% 0.57/0.99 thf(zf_stmt_8, axiom,
% 0.57/0.99 (![Event:$i,Time:$i]:
% 0.57/0.99 ( ( happens @ Event @ Time ) <=>
% 0.57/0.99 ( ( zip_tseitin_12 @ Time @ Event ) |
% 0.57/0.99 ( zip_tseitin_11 @ Time @ Event ) |
% 0.57/0.99 ( zip_tseitin_10 @ Time @ Event ) | ( zip_tseitin_9 @ Time @ Event ) ) ))).
% 0.57/0.99 thf(zip_derived_cl89, plain,
% 0.57/0.99 (![X0 : $i, X1 : $i]:
% 0.57/0.99 ( (happens @ X0 @ X1) | ~ (zip_tseitin_9 @ X1 @ X0))),
% 0.57/0.99 inference('cnf', [status(esa)], [zf_stmt_8])).
% 0.57/0.99 thf(zip_derived_cl286, plain,
% 0.57/0.99 (![X0 : $i, X1 : $i]:
% 0.57/0.99 (((X0) != (push)) | ((X1) != (plus @ n1 @ n1)) | (happens @ X0 @ X1))),
% 0.57/0.99 inference('sup-', [status(thm)], [zip_derived_cl284, zip_derived_cl89])).
% 0.57/0.99 thf(zip_derived_cl288, plain,
% 0.57/0.99 (![X0 : $i]: ( (happens @ push @ X0) | ((X0) != (plus @ n1 @ n1)))),
% 0.57/0.99 inference('eq_res', [status(thm)], [zip_derived_cl286])).
% 0.57/0.99 thf(terminates_all_defn, axiom,
% 0.57/0.99 (![Event:$i,Fluent:$i,Time:$i]:
% 0.57/0.99 ( ( terminates @ Event @ Fluent @ Time ) <=>
% 0.57/0.99 ( ( ( ~( happens @ push @ Time ) ) & ( ( Fluent ) = ( spinning ) ) &
% 0.57/0.99 ( ( Event ) = ( pull ) ) ) |
% 0.57/0.99 ( ( ~( happens @ pull @ Time ) ) & ( ( Fluent ) = ( spinning ) ) &
% 0.57/0.99 ( ( Event ) = ( push ) ) ) |
% 0.57/0.99 ( ( happens @ push @ Time ) & ( ( Fluent ) = ( backwards ) ) &
% 0.57/0.99 ( ( Event ) = ( pull ) ) ) |
% 0.57/0.99 ( ( happens @ push @ Time ) & ( ( Fluent ) = ( forwards ) ) &
% 0.57/0.99 ( ( Event ) = ( pull ) ) ) |
% 0.57/0.99 ( ( ~( happens @ push @ Time ) ) & ( ( Fluent ) = ( forwards ) ) &
% 0.57/0.99 ( ( Event ) = ( pull ) ) ) |
% 0.57/0.99 ( ( ~( happens @ pull @ Time ) ) & ( ( Fluent ) = ( backwards ) ) &
% 0.57/0.99 ( ( Event ) = ( push ) ) ) ) ))).
% 0.57/0.99 thf(zf_stmt_9, axiom,
% 0.57/0.99 (![Time:$i,Fluent:$i,Event:$i]:
% 0.57/0.99 ( ( zip_tseitin_5 @ Time @ Fluent @ Event ) <=>
% 0.57/0.99 ( ( ( Event ) = ( pull ) ) & ( ( Fluent ) = ( backwards ) ) &
% 0.57/0.99 ( happens @ push @ Time ) ) ))).
% 0.57/0.99 thf(zip_derived_cl52, plain,
% 0.57/0.99 (![X0 : $i, X1 : $i, X2 : $i]:
% 0.57/0.99 ( (zip_tseitin_5 @ X0 @ X1 @ X2)
% 0.57/0.99 | ~ (happens @ push @ X0)
% 0.57/0.99 | ((X1) != (backwards))
% 0.57/0.99 | ((X2) != (pull)))),
% 0.57/0.99 inference('cnf', [status(esa)], [zf_stmt_9])).
% 0.57/0.99 thf(zip_derived_cl237, plain,
% 0.57/0.99 (![X0 : $i, X1 : $i]:
% 0.57/0.99 (((X0) != (pull))
% 0.57/0.99 | ~ (happens @ push @ X1)
% 0.57/0.99 | (zip_tseitin_5 @ X1 @ backwards @ X0))),
% 0.57/0.99 inference('eq_res', [status(thm)], [zip_derived_cl52])).
% 0.57/0.99 thf(zf_stmt_10, type, zip_tseitin_8 : $i > $i > $i > $o).
% 0.57/0.99 thf(zf_stmt_11, axiom,
% 0.57/0.99 (![Time:$i,Fluent:$i,Event:$i]:
% 0.57/0.99 ( ( zip_tseitin_8 @ Time @ Fluent @ Event ) <=>
% 0.57/0.99 ( ( ( Event ) = ( push ) ) & ( ( Fluent ) = ( backwards ) ) &
% 0.57/0.99 ( ~( happens @ pull @ Time ) ) ) ))).
% 0.57/0.99 thf(zf_stmt_12, type, zip_tseitin_7 : $i > $i > $i > $o).
% 0.57/0.99 thf(zf_stmt_13, axiom,
% 0.57/0.99 (![Time:$i,Fluent:$i,Event:$i]:
% 0.57/0.99 ( ( zip_tseitin_7 @ Time @ Fluent @ Event ) <=>
% 0.57/0.99 ( ( ( Event ) = ( pull ) ) & ( ( Fluent ) = ( forwards ) ) &
% 0.57/0.99 ( ~( happens @ push @ Time ) ) ) ))).
% 0.57/0.99 thf(zf_stmt_14, type, zip_tseitin_6 : $i > $i > $i > $o).
% 0.57/0.99 thf(zf_stmt_15, axiom,
% 0.57/0.99 (![Time:$i,Fluent:$i,Event:$i]:
% 0.57/0.99 ( ( zip_tseitin_6 @ Time @ Fluent @ Event ) <=>
% 0.57/0.99 ( ( ( Event ) = ( pull ) ) & ( ( Fluent ) = ( forwards ) ) &
% 0.57/0.99 ( happens @ push @ Time ) ) ))).
% 0.57/0.99 thf(zf_stmt_16, type, zip_tseitin_5 : $i > $i > $i > $o).
% 0.57/0.99 thf(zf_stmt_17, type, zip_tseitin_4 : $i > $i > $i > $o).
% 0.57/0.99 thf(zf_stmt_18, axiom,
% 0.57/0.99 (![Time:$i,Fluent:$i,Event:$i]:
% 0.57/0.99 ( ( zip_tseitin_4 @ Time @ Fluent @ Event ) <=>
% 0.57/0.99 ( ( ( Event ) = ( push ) ) & ( ( Fluent ) = ( spinning ) ) &
% 0.57/0.99 ( ~( happens @ pull @ Time ) ) ) ))).
% 0.57/0.99 thf(zf_stmt_19, type, zip_tseitin_3 : $i > $i > $i > $o).
% 0.57/0.99 thf(zf_stmt_20, axiom,
% 0.57/0.99 (![Time:$i,Fluent:$i,Event:$i]:
% 0.57/0.99 ( ( zip_tseitin_3 @ Time @ Fluent @ Event ) <=>
% 0.57/0.99 ( ( ( Event ) = ( pull ) ) & ( ( Fluent ) = ( spinning ) ) &
% 0.57/0.99 ( ~( happens @ push @ Time ) ) ) ))).
% 0.57/0.99 thf(zf_stmt_21, axiom,
% 0.57/0.99 (![Event:$i,Fluent:$i,Time:$i]:
% 0.57/0.99 ( ( terminates @ Event @ Fluent @ Time ) <=>
% 0.57/0.99 ( ( zip_tseitin_8 @ Time @ Fluent @ Event ) |
% 0.57/0.99 ( zip_tseitin_7 @ Time @ Fluent @ Event ) |
% 0.57/0.99 ( zip_tseitin_6 @ Time @ Fluent @ Event ) |
% 0.57/0.99 ( zip_tseitin_5 @ Time @ Fluent @ Event ) |
% 0.57/0.99 ( zip_tseitin_4 @ Time @ Fluent @ Event ) |
% 0.57/0.99 ( zip_tseitin_3 @ Time @ Fluent @ Event ) ) ))).
% 0.57/0.99 thf(zip_derived_cl69, plain,
% 0.57/0.99 (![X0 : $i, X1 : $i, X2 : $i]:
% 0.57/0.99 ( (terminates @ X0 @ X1 @ X2) | ~ (zip_tseitin_5 @ X2 @ X1 @ X0))),
% 0.57/0.99 inference('cnf', [status(esa)], [zf_stmt_21])).
% 0.57/0.99 thf(zip_derived_cl366, plain,
% 0.57/0.99 (![X0 : $i, X1 : $i]:
% 0.57/0.99 (~ (happens @ push @ X1)
% 0.57/0.99 | ((X0) != (pull))
% 0.57/0.99 | (terminates @ X0 @ backwards @ X1))),
% 0.57/0.99 inference('sup-', [status(thm)], [zip_derived_cl237, zip_derived_cl69])).
% 0.57/0.99 thf(zip_derived_cl78, plain,
% 0.57/0.99 (![X0 : $i, X1 : $i]:
% 0.57/0.99 ( (zip_tseitin_10 @ X0 @ X1) | ((X0) != (n2)) | ((X1) != (pull)))),
% 0.57/0.99 inference('cnf', [status(esa)], [zf_stmt_6])).
% 0.57/0.99 thf(zip_derived_cl98, plain, (((plus @ n1 @ n1) = (n2))),
% 0.57/0.99 inference('cnf', [status(esa)], [plus1_1])).
% 0.57/0.99 thf(zip_derived_cl289, plain,
% 0.57/0.99 (![X0 : $i, X1 : $i]:
% 0.57/0.99 ( (zip_tseitin_10 @ X0 @ X1)
% 0.57/0.99 | ((X0) != (plus @ n1 @ n1))
% 0.57/0.99 | ((X1) != (pull)))),
% 0.57/0.99 inference('demod', [status(thm)], [zip_derived_cl78, zip_derived_cl98])).
% 0.57/0.99 thf(zip_derived_cl88, plain,
% 0.57/0.99 (![X0 : $i, X1 : $i]:
% 0.57/0.99 ( (happens @ X0 @ X1) | ~ (zip_tseitin_10 @ X1 @ X0))),
% 0.57/0.99 inference('cnf', [status(esa)], [zf_stmt_8])).
% 0.57/0.99 thf(zip_derived_cl291, plain,
% 0.57/0.99 (![X0 : $i, X1 : $i]:
% 0.57/0.99 (((X0) != (pull)) | ((X1) != (plus @ n1 @ n1)) | (happens @ X0 @ X1))),
% 0.57/0.99 inference('sup-', [status(thm)], [zip_derived_cl289, zip_derived_cl88])).
% 0.57/0.99 thf(zip_derived_cl293, plain,
% 0.57/0.99 (![X0 : $i]: ( (happens @ pull @ X0) | ((X0) != (plus @ n1 @ n1)))),
% 0.57/0.99 inference('eq_res', [status(thm)], [zip_derived_cl291])).
% 0.57/0.99 thf(not_backwards_3, conjecture, (~( holdsAt @ backwards @ n3 ))).
% 0.57/0.99 thf(zf_stmt_22, negated_conjecture, (holdsAt @ backwards @ n3),
% 0.57/0.99 inference('cnf.neg', [status(esa)], [not_backwards_3])).
% 0.57/0.99 thf(zip_derived_cl134, plain, ( (holdsAt @ backwards @ n3)),
% 0.57/0.99 inference('cnf', [status(esa)], [zf_stmt_22])).
% 0.57/0.99 thf(plus1_2, axiom, (( plus @ n1 @ n2 ) = ( n3 ))).
% 0.57/0.99 thf(zip_derived_cl99, plain, (((plus @ n1 @ n2) = (n3))),
% 0.57/0.99 inference('cnf', [status(esa)], [plus1_2])).
% 0.57/0.99 thf(zip_derived_cl98, plain, (((plus @ n1 @ n1) = (n2))),
% 0.57/0.99 inference('cnf', [status(esa)], [plus1_1])).
% 0.57/0.99 thf(zip_derived_cl138, plain, (((plus @ n1 @ (plus @ n1 @ n1)) = (n3))),
% 0.57/0.99 inference('demod', [status(thm)], [zip_derived_cl99, zip_derived_cl98])).
% 0.57/0.99 thf(zip_derived_cl146, plain,
% 0.57/0.99 ( (holdsAt @ backwards @ (plus @ n1 @ (plus @ n1 @ n1)))),
% 0.57/0.99 inference('demod', [status(thm)], [zip_derived_cl134, zip_derived_cl138])).
% 0.57/0.99 thf(symmetry_of_plus, axiom,
% 0.57/0.99 (![X:$i,Y:$i]: ( ( plus @ X @ Y ) = ( plus @ Y @ X ) ))).
% 0.57/0.99 thf(zip_derived_cl104, plain,
% 0.57/0.99 (![X0 : $i, X1 : $i]: ((plus @ X1 @ X0) = (plus @ X0 @ X1))),
% 0.57/0.99 inference('cnf', [status(esa)], [symmetry_of_plus])).
% 0.57/0.99 thf(happens_terminates_not_holds, axiom,
% 0.57/0.99 (![Event:$i,Time:$i,Fluent:$i]:
% 0.57/0.99 ( ( ( happens @ Event @ Time ) & ( terminates @ Event @ Fluent @ Time ) ) =>
% 0.57/0.99 ( ~( holdsAt @ Fluent @ ( plus @ Time @ n1 ) ) ) ))).
% 0.57/0.99 thf(zip_derived_cl21, plain,
% 0.57/0.99 (![X0 : $i, X1 : $i, X2 : $i]:
% 0.57/0.99 (~ (happens @ X0 @ X1)
% 0.57/0.99 | ~ (terminates @ X0 @ X2 @ X1)
% 0.57/0.99 | ~ (holdsAt @ X2 @ (plus @ X1 @ n1)))),
% 0.57/0.99 inference('cnf', [status(esa)], [happens_terminates_not_holds])).
% 0.57/0.99 thf(zip_derived_cl155, plain,
% 0.57/0.99 (![X0 : $i, X1 : $i, X2 : $i]:
% 0.57/0.99 (~ (holdsAt @ X1 @ (plus @ n1 @ X0))
% 0.57/0.99 | ~ (terminates @ X2 @ X1 @ X0)
% 0.57/0.99 | ~ (happens @ X2 @ X0))),
% 0.57/0.99 inference('sup-', [status(thm)], [zip_derived_cl104, zip_derived_cl21])).
% 0.57/0.99 thf(zip_derived_cl162, plain,
% 0.57/0.99 (![X0 : $i]:
% 0.57/0.99 (~ (happens @ X0 @ (plus @ n1 @ n1))
% 0.57/0.99 | ~ (terminates @ X0 @ backwards @ (plus @ n1 @ n1)))),
% 0.57/0.99 inference('sup-', [status(thm)], [zip_derived_cl146, zip_derived_cl155])).
% 0.57/0.99 thf(zip_derived_cl328, plain,
% 0.57/0.99 ((((plus @ n1 @ n1) != (plus @ n1 @ n1))
% 0.57/0.99 | ~ (terminates @ pull @ backwards @ (plus @ n1 @ n1)))),
% 0.57/0.99 inference('sup-', [status(thm)], [zip_derived_cl293, zip_derived_cl162])).
% 0.57/0.99 thf(zip_derived_cl332, plain,
% 0.57/0.99 (~ (terminates @ pull @ backwards @ (plus @ n1 @ n1))),
% 0.57/0.99 inference('simplify', [status(thm)], [zip_derived_cl328])).
% 0.57/0.99 thf(zip_derived_cl460, plain,
% 0.57/0.99 ((((pull) != (pull)) | ~ (happens @ push @ (plus @ n1 @ n1)))),
% 0.57/0.99 inference('sup-', [status(thm)], [zip_derived_cl366, zip_derived_cl332])).
% 0.57/0.99 thf(zip_derived_cl461, plain, (~ (happens @ push @ (plus @ n1 @ n1))),
% 0.57/0.99 inference('simplify', [status(thm)], [zip_derived_cl460])).
% 0.57/0.99 thf(zip_derived_cl464, plain, (((plus @ n1 @ n1) != (plus @ n1 @ n1))),
% 0.57/0.99 inference('sup-', [status(thm)], [zip_derived_cl288, zip_derived_cl461])).
% 0.57/0.99 thf(zip_derived_cl468, plain, ($false),
% 0.57/0.99 inference('simplify', [status(thm)], [zip_derived_cl464])).
% 0.57/0.99
% 0.57/0.99 % SZS output end Refutation
% 0.57/0.99
% 0.57/0.99
% 0.57/0.99 % Terminating...
% 2.10/1.20 % Runner terminated.
% 2.10/1.21 % Zipperpin 1.5 exiting
%------------------------------------------------------------------------------