%------------------------------------------------------------------------------
% File : Zipperpin---2.1.9999
% Problem : GEO191+3 : TPTP v9.2.0. Released v4.0.0.
% Transfm : none
% Format : tptp:raw
% Command : python3 /export/starexec/sandbox2/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox2/tmp/tmp.PCVKnjJDaH 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 04:34:11 PM UTC 2025
% Result : Theorem 5.34s 1.33s
% Output : Refutation 5.34s
% Verified :
% SZS Type : -
% Comments :
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.12/0.12 % Problem : GEO191+3 : TPTP v9.2.0. Released v4.0.0.
% 0.12/0.13 % Command : python3 /export/starexec/sandbox2/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox2/tmp/tmp.PCVKnjJDaH true
% 0.13/0.34 % Computer : n031.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 : Wed Oct 1 17:40:23 EDT 2025
% 0.13/0.35 % CPUTime :
% 0.13/0.35 % Running portfolio for 300 s
% 0.13/0.35 % File : /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.13/0.35 % Number of cores: 8
% 0.13/0.35 % Python version: Python 3.6.8
% 0.13/0.35 % Running in FO mode
% 0.52/0.64 % Total configuration time : 435
% 0.52/0.64 % Estimated wc time : 1092
% 0.52/0.64 % Estimated cpu time (7 cpus) : 156.0
% 0.54/0.69 % /export/starexec/sandbox2/solver/bin/fo/fo6_bce.sh running for 75s
% 0.54/0.72 % /export/starexec/sandbox2/solver/bin/fo/fo3_bce.sh running for 75s
% 0.54/0.72 % /export/starexec/sandbox2/solver/bin/fo/fo1_av.sh running for 75s
% 0.54/0.72 % /export/starexec/sandbox2/solver/bin/fo/fo7.sh running for 63s
% 0.56/0.74 % /export/starexec/sandbox2/solver/bin/fo/fo13.sh running for 50s
% 0.56/0.74 % /export/starexec/sandbox2/solver/bin/fo/fo5.sh running for 50s
% 0.56/0.75 % /export/starexec/sandbox2/solver/bin/fo/fo4.sh running for 50s
% 5.34/1.33 % Solved by fo/fo5.sh.
% 5.34/1.33 % done 929 iterations in 0.564s
% 5.34/1.33 % SZS status Theorem for '/export/starexec/sandbox2/benchmark/theBenchmark.p'
% 5.34/1.33 % SZS output start Refutation
% 5.34/1.33 thf(distinct_lines_type, type, distinct_lines: $i > $i > $o).
% 5.34/1.33 thf(zip_tseitin_2_type, type, zip_tseitin_2: $i > $i > $o).
% 5.34/1.33 thf(sk__3_type, type, sk__3: $i).
% 5.34/1.33 thf(equal_lines_type, type, equal_lines: $i > $i > $o).
% 5.34/1.33 thf(incident_point_and_line_type, type, incident_point_and_line: $i > $i > $o).
% 5.34/1.33 thf(parallel_through_point_type, type, parallel_through_point: $i > $i > $i).
% 5.34/1.33 thf(zip_tseitin_3_type, type, zip_tseitin_3: $i > $i > $o).
% 5.34/1.33 thf(sk__2_type, type, sk__2: $i).
% 5.34/1.33 thf(apart_point_and_line_type, type, apart_point_and_line: $i > $i > $o).
% 5.34/1.33 thf(intersection_point_type, type, intersection_point: $i > $i > $i).
% 5.34/1.33 thf(unorthogonal_lines_type, type, unorthogonal_lines: $i > $i > $o).
% 5.34/1.33 thf(sk__1_type, type, sk__1: $i).
% 5.34/1.33 thf(convergent_lines_type, type, convergent_lines: $i > $i > $o).
% 5.34/1.33 thf(sk__type, type, sk_: $i).
% 5.34/1.33 thf(con, conjecture,
% 5.34/1.33 (![X:$i,Y:$i,U:$i,V:$i]:
% 5.34/1.33 ( ( ( convergent_lines @ X @ Y ) & ( convergent_lines @ U @ V ) &
% 5.34/1.33 ( ( apart_point_and_line @ ( intersection_point @ X @ Y ) @ U ) |
% 5.34/1.33 ( apart_point_and_line @ ( intersection_point @ X @ Y ) @ V ) ) ) =>
% 5.34/1.33 ( ( apart_point_and_line @ ( intersection_point @ U @ V ) @ X ) |
% 5.34/1.33 ( apart_point_and_line @ ( intersection_point @ U @ V ) @ Y ) ) ))).
% 5.34/1.33 thf(zf_stmt_0, negated_conjecture,
% 5.34/1.33 (~( ![X:$i,Y:$i,U:$i,V:$i]:
% 5.34/1.33 ( ( ( convergent_lines @ X @ Y ) & ( convergent_lines @ U @ V ) &
% 5.34/1.33 ( ( apart_point_and_line @ ( intersection_point @ X @ Y ) @ U ) |
% 5.34/1.33 ( apart_point_and_line @ ( intersection_point @ X @ Y ) @ V ) ) ) =>
% 5.34/1.33 ( ( apart_point_and_line @ ( intersection_point @ U @ V ) @ X ) |
% 5.34/1.33 ( apart_point_and_line @ ( intersection_point @ U @ V ) @ Y ) ) ) )),
% 5.34/1.33 inference('cnf.neg', [status(esa)], [con])).
% 5.34/1.33 thf(zip_derived_cl50, plain,
% 5.34/1.33 (( (apart_point_and_line @ (intersection_point @ sk_ @ sk__1) @ sk__2)
% 5.34/1.33 | (apart_point_and_line @ (intersection_point @ sk_ @ sk__1) @ sk__3))),
% 5.34/1.33 inference('cnf', [status(esa)], [zf_stmt_0])).
% 5.34/1.33 thf(a4, axiom,
% 5.34/1.33 (![X:$i,Y:$i]:
% 5.34/1.33 ( ( incident_point_and_line @ X @ Y ) <=>
% 5.34/1.33 ( ~( apart_point_and_line @ X @ Y ) ) ))).
% 5.34/1.33 thf(zip_derived_cl44, plain,
% 5.34/1.33 (![X0 : $i, X1 : $i]:
% 5.34/1.33 (~ (apart_point_and_line @ X0 @ X1)
% 5.34/1.33 | ~ (incident_point_and_line @ X0 @ X1))),
% 5.34/1.33 inference('cnf', [status(esa)], [a4])).
% 5.34/1.33 thf(zip_derived_cl454, plain,
% 5.34/1.33 (( (apart_point_and_line @ (intersection_point @ sk_ @ sk__1) @ sk__2)
% 5.34/1.33 | ~ (incident_point_and_line @ (intersection_point @ sk_ @ sk__1) @
% 5.34/1.33 sk__3))),
% 5.34/1.33 inference('sup-', [status(thm)], [zip_derived_cl50, zip_derived_cl44])).
% 5.34/1.33 thf(ax2, axiom,
% 5.34/1.33 (![X:$i,Y:$i]:
% 5.34/1.33 ( ( equal_lines @ X @ Y ) <=> ( ~( distinct_lines @ X @ Y ) ) ))).
% 5.34/1.33 thf(zip_derived_cl41, plain,
% 5.34/1.33 (![X0 : $i, X1 : $i]:
% 5.34/1.33 ( (equal_lines @ X0 @ X1) | (distinct_lines @ X0 @ X1))),
% 5.34/1.33 inference('cnf', [status(esa)], [ax2])).
% 5.34/1.33 thf(p1, axiom,
% 5.34/1.33 (![X:$i,Y:$i]:
% 5.34/1.33 ( ( distinct_lines @ X @ Y ) => ( convergent_lines @ X @ Y ) ))).
% 5.34/1.33 thf(zip_derived_cl14, plain,
% 5.34/1.33 (![X0 : $i, X1 : $i]:
% 5.34/1.33 ( (convergent_lines @ X0 @ X1) | ~ (distinct_lines @ X0 @ X1))),
% 5.34/1.33 inference('cnf', [status(esa)], [p1])).
% 5.34/1.33 thf(zip_derived_cl81, plain,
% 5.34/1.33 (![X0 : $i, X1 : $i]:
% 5.34/1.33 ( (equal_lines @ X1 @ X0) | (convergent_lines @ X1 @ X0))),
% 5.34/1.33 inference('sup-', [status(thm)], [zip_derived_cl41, zip_derived_cl14])).
% 5.34/1.33 thf(cotno1, axiom,
% 5.34/1.33 (![L:$i,M:$i,N:$i]:
% 5.34/1.33 ( ( ( ( ~( unorthogonal_lines @ L @ N ) ) |
% 5.34/1.33 ( ~( convergent_lines @ L @ N ) ) ) &
% 5.34/1.33 ( ( ~( unorthogonal_lines @ L @ M ) ) |
% 5.34/1.33 ( ~( convergent_lines @ L @ M ) ) ) ) =>
% 5.34/1.33 ( ( ~( unorthogonal_lines @ M @ N ) ) |
% 5.34/1.33 ( ~( convergent_lines @ M @ N ) ) ) ))).
% 5.34/1.33 thf(zf_stmt_1, axiom,
% 5.34/1.33 (![N:$i,L:$i]:
% 5.34/1.33 ( ( ( ~( convergent_lines @ L @ N ) ) |
% 5.34/1.33 ( ~( unorthogonal_lines @ L @ N ) ) ) =>
% 5.34/1.33 ( zip_tseitin_2 @ N @ L ) ))).
% 5.34/1.33 thf(zip_derived_cl28, plain,
% 5.34/1.33 (![X0 : $i, X1 : $i]:
% 5.34/1.33 ( (zip_tseitin_2 @ X0 @ X1) | (convergent_lines @ X1 @ X0))),
% 5.34/1.33 inference('cnf', [status(esa)], [zf_stmt_1])).
% 5.34/1.33 thf(apart3, axiom, (![X:$i]: ( ~( convergent_lines @ X @ X ) ))).
% 5.34/1.33 thf(zip_derived_cl2, plain, (![X0 : $i]: ~ (convergent_lines @ X0 @ X0)),
% 5.34/1.33 inference('cnf', [status(esa)], [apart3])).
% 5.34/1.33 thf(zip_derived_cl54, plain, (![X0 : $i]: (zip_tseitin_2 @ X0 @ X0)),
% 5.34/1.33 inference('sup-', [status(thm)], [zip_derived_cl28, zip_derived_cl2])).
% 5.34/1.33 thf(zf_stmt_2, axiom,
% 5.34/1.33 (![M:$i,L:$i]:
% 5.34/1.33 ( ( ( ~( convergent_lines @ L @ M ) ) |
% 5.34/1.33 ( ~( unorthogonal_lines @ L @ M ) ) ) =>
% 5.34/1.33 ( zip_tseitin_3 @ M @ L ) ))).
% 5.34/1.33 thf(zip_derived_cl30, plain,
% 5.34/1.33 (![X0 : $i, X1 : $i]:
% 5.34/1.33 ( (zip_tseitin_3 @ X0 @ X1) | (convergent_lines @ X1 @ X0))),
% 5.34/1.33 inference('cnf', [status(esa)], [zf_stmt_2])).
% 5.34/1.33 thf(cp1, axiom,
% 5.34/1.33 (![X:$i,Y:$i]:
% 5.34/1.33 ( ~( convergent_lines @ ( parallel_through_point @ Y @ X ) @ Y ) ))).
% 5.34/1.33 thf(zip_derived_cl15, plain,
% 5.34/1.33 (![X0 : $i, X1 : $i]:
% 5.34/1.33 ~ (convergent_lines @ (parallel_through_point @ X0 @ X1) @ X0)),
% 5.34/1.33 inference('cnf', [status(esa)], [cp1])).
% 5.34/1.33 thf(zip_derived_cl67, plain,
% 5.34/1.33 (![X0 : $i, X1 : $i]:
% 5.34/1.33 (zip_tseitin_3 @ X0 @ (parallel_through_point @ X0 @ X1))),
% 5.34/1.33 inference('sup-', [status(thm)], [zip_derived_cl30, zip_derived_cl15])).
% 5.34/1.33 thf(zf_stmt_3, type, zip_tseitin_3 : $i > $i > $o).
% 5.34/1.33 thf(zf_stmt_4, type, zip_tseitin_2 : $i > $i > $o).
% 5.34/1.33 thf(zf_stmt_5, axiom,
% 5.34/1.33 (![L:$i,M:$i,N:$i]:
% 5.34/1.33 ( ( ( zip_tseitin_3 @ M @ L ) & ( zip_tseitin_2 @ N @ L ) ) =>
% 5.34/1.33 ( ( ~( convergent_lines @ M @ N ) ) |
% 5.34/1.33 ( ~( unorthogonal_lines @ M @ N ) ) ) ))).
% 5.34/1.33 thf(zip_derived_cl32, plain,
% 5.34/1.33 (![X0 : $i, X1 : $i, X2 : $i]:
% 5.34/1.33 (~ (zip_tseitin_3 @ X0 @ X1)
% 5.34/1.33 | ~ (zip_tseitin_2 @ X2 @ X1)
% 5.34/1.33 | ~ (convergent_lines @ X0 @ X2)
% 5.34/1.33 | ~ (unorthogonal_lines @ X0 @ X2))),
% 5.34/1.33 inference('cnf', [status(esa)], [zf_stmt_5])).
% 5.34/1.33 thf(zip_derived_cl275, plain,
% 5.34/1.33 (![X0 : $i, X1 : $i, X2 : $i]:
% 5.34/1.33 (~ (unorthogonal_lines @ X1 @ X2)
% 5.34/1.33 | ~ (convergent_lines @ X1 @ X2)
% 5.34/1.33 | ~ (zip_tseitin_2 @ X2 @ (parallel_through_point @ X1 @ X0)))),
% 5.34/1.33 inference('sup-', [status(thm)], [zip_derived_cl67, zip_derived_cl32])).
% 5.34/1.33 thf(zip_derived_cl334, plain,
% 5.34/1.33 (![X0 : $i, X1 : $i]:
% 5.34/1.33 (~ (convergent_lines @ X1 @ (parallel_through_point @ X1 @ X0))
% 5.34/1.33 | ~ (unorthogonal_lines @ X1 @ (parallel_through_point @ X1 @ X0)))),
% 5.34/1.33 inference('sup-', [status(thm)], [zip_derived_cl54, zip_derived_cl275])).
% 5.34/1.33 thf(occu1, axiom,
% 5.34/1.33 (![L:$i,M:$i]:
% 5.34/1.33 ( ( unorthogonal_lines @ L @ M ) | ( convergent_lines @ L @ M ) ))).
% 5.34/1.33 thf(zip_derived_cl18, plain,
% 5.34/1.33 (![X0 : $i, X1 : $i]:
% 5.34/1.33 ( (unorthogonal_lines @ X0 @ X1) | (convergent_lines @ X0 @ X1))),
% 5.34/1.33 inference('cnf', [status(esa)], [occu1])).
% 5.34/1.33 thf(ax6, axiom,
% 5.34/1.33 (![X:$i,Y:$i,Z:$i]:
% 5.34/1.33 ( ( convergent_lines @ X @ Y ) =>
% 5.34/1.33 ( ( convergent_lines @ X @ Z ) | ( convergent_lines @ Y @ Z ) ) ))).
% 5.34/1.33 thf(zip_derived_cl5, plain,
% 5.34/1.33 (![X0 : $i, X1 : $i, X2 : $i]:
% 5.34/1.33 (~ (convergent_lines @ X0 @ X1)
% 5.34/1.33 | (convergent_lines @ X0 @ X2)
% 5.34/1.33 | (convergent_lines @ X1 @ X2))),
% 5.34/1.33 inference('cnf', [status(esa)], [ax6])).
% 5.34/1.33 thf(zip_derived_cl83, plain,
% 5.34/1.33 (![X0 : $i, X1 : $i, X2 : $i]:
% 5.34/1.33 ( (unorthogonal_lines @ X1 @ X0)
% 5.34/1.33 | (convergent_lines @ X0 @ X2)
% 5.34/1.33 | (convergent_lines @ X1 @ X2))),
% 5.34/1.33 inference('sup-', [status(thm)], [zip_derived_cl18, zip_derived_cl5])).
% 5.34/1.33 thf(zip_derived_cl2, plain, (![X0 : $i]: ~ (convergent_lines @ X0 @ X0)),
% 5.34/1.33 inference('cnf', [status(esa)], [apart3])).
% 5.34/1.33 thf(zip_derived_cl207, plain,
% 5.34/1.33 (![X0 : $i, X1 : $i]:
% 5.34/1.33 ( (convergent_lines @ X1 @ X0) | (unorthogonal_lines @ X0 @ X1))),
% 5.34/1.33 inference('sup-', [status(thm)], [zip_derived_cl83, zip_derived_cl2])).
% 5.34/1.33 thf(zip_derived_cl15, plain,
% 5.34/1.33 (![X0 : $i, X1 : $i]:
% 5.34/1.33 ~ (convergent_lines @ (parallel_through_point @ X0 @ X1) @ X0)),
% 5.34/1.33 inference('cnf', [status(esa)], [cp1])).
% 5.34/1.33 thf(zip_derived_cl245, plain,
% 5.34/1.33 (![X0 : $i, X1 : $i]:
% 5.34/1.33 (unorthogonal_lines @ X0 @ (parallel_through_point @ X0 @ X1))),
% 5.34/1.33 inference('sup-', [status(thm)], [zip_derived_cl207, zip_derived_cl15])).
% 5.34/1.33 thf(zip_derived_cl336, plain,
% 5.34/1.33 (![X0 : $i, X1 : $i]:
% 5.34/1.33 ~ (convergent_lines @ X1 @ (parallel_through_point @ X1 @ X0))),
% 5.34/1.33 inference('demod', [status(thm)], [zip_derived_cl334, zip_derived_cl245])).
% 5.34/1.33 thf(zip_derived_cl344, plain,
% 5.34/1.33 (![X0 : $i, X1 : $i]:
% 5.34/1.33 (equal_lines @ X1 @ (parallel_through_point @ X1 @ X0))),
% 5.34/1.33 inference('sup-', [status(thm)], [zip_derived_cl81, zip_derived_cl336])).
% 5.34/1.33 thf(zip_derived_cl45, plain,
% 5.34/1.33 (![X0 : $i, X1 : $i]:
% 5.34/1.33 ( (incident_point_and_line @ X0 @ X1)
% 5.34/1.33 | (apart_point_and_line @ X0 @ X1))),
% 5.34/1.33 inference('cnf', [status(esa)], [a4])).
% 5.34/1.33 thf(ceq2, axiom,
% 5.34/1.33 (![X:$i,Y:$i,Z:$i]:
% 5.34/1.33 ( ( apart_point_and_line @ X @ Y ) =>
% 5.34/1.33 ( ( distinct_lines @ Y @ Z ) | ( apart_point_and_line @ X @ Z ) ) ))).
% 5.34/1.33 thf(zip_derived_cl12, plain,
% 5.34/1.33 (![X0 : $i, X1 : $i, X2 : $i]:
% 5.34/1.33 (~ (apart_point_and_line @ X0 @ X1)
% 5.34/1.33 | (distinct_lines @ X1 @ X2)
% 5.34/1.33 | (apart_point_and_line @ X0 @ X2))),
% 5.34/1.33 inference('cnf', [status(esa)], [ceq2])).
% 5.34/1.33 thf(zip_derived_cl151, plain,
% 5.34/1.33 (![X0 : $i, X1 : $i, X2 : $i]:
% 5.34/1.33 ( (incident_point_and_line @ X1 @ X0)
% 5.34/1.33 | (apart_point_and_line @ X1 @ X2)
% 5.34/1.33 | (distinct_lines @ X0 @ X2))),
% 5.34/1.33 inference('sup-', [status(thm)], [zip_derived_cl45, zip_derived_cl12])).
% 5.34/1.33 thf(zip_derived_cl40, plain,
% 5.34/1.33 (![X0 : $i, X1 : $i]:
% 5.34/1.33 (~ (distinct_lines @ X0 @ X1) | ~ (equal_lines @ X0 @ X1))),
% 5.34/1.33 inference('cnf', [status(esa)], [ax2])).
% 5.34/1.33 thf(zip_derived_cl1081, plain,
% 5.34/1.33 (![X0 : $i, X1 : $i, X2 : $i]:
% 5.34/1.33 ( (apart_point_and_line @ X2 @ X0)
% 5.34/1.33 | (incident_point_and_line @ X2 @ X1)
% 5.34/1.33 | ~ (equal_lines @ X1 @ X0))),
% 5.34/1.33 inference('sup-', [status(thm)], [zip_derived_cl151, zip_derived_cl40])).
% 5.34/1.33 thf(zip_derived_cl1117, plain,
% 5.34/1.33 (![X0 : $i, X1 : $i, X2 : $i]:
% 5.34/1.33 ( (incident_point_and_line @ X2 @ X1)
% 5.34/1.33 | (apart_point_and_line @ X2 @ (parallel_through_point @ X1 @ X0)))),
% 5.34/1.33 inference('sup-', [status(thm)], [zip_derived_cl344, zip_derived_cl1081])).
% 5.34/1.33 thf(cp2, axiom,
% 5.34/1.33 (![X:$i,Y:$i]:
% 5.34/1.33 ( ~( apart_point_and_line @ X @ ( parallel_through_point @ Y @ X ) ) ))).
% 5.34/1.33 thf(zip_derived_cl16, plain,
% 5.34/1.33 (![X0 : $i, X1 : $i]:
% 5.34/1.33 ~ (apart_point_and_line @ X0 @ (parallel_through_point @ X1 @ X0))),
% 5.34/1.33 inference('cnf', [status(esa)], [cp2])).
% 5.34/1.33 thf(zip_derived_cl3550, plain,
% 5.34/1.33 (![X0 : $i, X1 : $i]: (incident_point_and_line @ X0 @ X1)),
% 5.34/1.33 inference('sup-', [status(thm)], [zip_derived_cl1117, zip_derived_cl16])).
% 5.34/1.33 thf(zip_derived_cl3568, plain,
% 5.34/1.33 ( (apart_point_and_line @ (intersection_point @ sk_ @ sk__1) @ sk__2)),
% 5.34/1.33 inference('demod', [status(thm)], [zip_derived_cl454, zip_derived_cl3550])).
% 5.34/1.33 thf(zip_derived_cl44, plain,
% 5.34/1.33 (![X0 : $i, X1 : $i]:
% 5.34/1.33 (~ (apart_point_and_line @ X0 @ X1)
% 5.34/1.33 | ~ (incident_point_and_line @ X0 @ X1))),
% 5.34/1.33 inference('cnf', [status(esa)], [a4])).
% 5.34/1.33 thf(zip_derived_cl3550, plain,
% 5.34/1.33 (![X0 : $i, X1 : $i]: (incident_point_and_line @ X0 @ X1)),
% 5.34/1.33 inference('sup-', [status(thm)], [zip_derived_cl1117, zip_derived_cl16])).
% 5.34/1.33 thf(zip_derived_cl3567, plain,
% 5.34/1.33 (![X0 : $i, X1 : $i]: ~ (apart_point_and_line @ X0 @ X1)),
% 5.34/1.33 inference('demod', [status(thm)], [zip_derived_cl44, zip_derived_cl3550])).
% 5.34/1.33 thf(zip_derived_cl3581, plain, ($false),
% 5.34/1.33 inference('sup-', [status(thm)], [zip_derived_cl3568, zip_derived_cl3567])).
% 5.34/1.33
% 5.34/1.33 % SZS output end Refutation
% 5.34/1.33
% 5.34/1.33
% 5.34/1.33 % Terminating...
% 5.71/1.44 % Runner terminated.
% 5.71/1.45 % Zipperpin 1.5 exiting
%------------------------------------------------------------------------------