TSTP Solution File: SEU321+1 by Otter---3.3

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Otter---3.3
% Problem  : SEU321+1 : TPTP v8.1.0. Released v3.3.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : otter-tptp-script %s

% Computer : n013.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 Jul 27 13:15:39 EDT 2022

% Result   : Unknown 15.21s 15.37s
% Output   : None 
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----No solution output by system
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.11  % Problem  : SEU321+1 : TPTP v8.1.0. Released v3.3.0.
% 0.07/0.12  % Command  : otter-tptp-script %s
% 0.12/0.33  % Computer : n013.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 Jul 27 07:54:00 EDT 2022
% 0.12/0.33  % CPUTime  : 
% 2.20/2.39  ----- Otter 3.3f, August 2004 -----
% 2.20/2.39  The process was started by sandbox on n013.cluster.edu,
% 2.20/2.39  Wed Jul 27 07:54:00 2022
% 2.20/2.39  The command was "./otter".  The process ID is 29771.
% 2.20/2.39  
% 2.20/2.39  set(prolog_style_variables).
% 2.20/2.39  set(auto).
% 2.20/2.39     dependent: set(auto1).
% 2.20/2.39     dependent: set(process_input).
% 2.20/2.39     dependent: clear(print_kept).
% 2.20/2.39     dependent: clear(print_new_demod).
% 2.20/2.39     dependent: clear(print_back_demod).
% 2.20/2.39     dependent: clear(print_back_sub).
% 2.20/2.39     dependent: set(control_memory).
% 2.20/2.39     dependent: assign(max_mem, 12000).
% 2.20/2.39     dependent: assign(pick_given_ratio, 4).
% 2.20/2.39     dependent: assign(stats_level, 1).
% 2.20/2.39     dependent: assign(max_seconds, 10800).
% 2.20/2.39  clear(print_given).
% 2.20/2.39  
% 2.20/2.39  formula_list(usable).
% 2.20/2.39  all A (A=A).
% 2.20/2.39  all A B subset(A,A).
% 2.20/2.39  all A (-empty_carrier(A)&one_sorted_str(A)-> (exists B (element(B,powerset(the_carrier(A)))& -empty(B)))).
% 2.20/2.39  all A (v5_membered(A)->v4_membered(A)).
% 2.20/2.39  all A (v4_membered(A)->v3_membered(A)).
% 2.20/2.39  all A (v3_membered(A)->v2_membered(A)).
% 2.20/2.39  all A (v2_membered(A)->v1_membered(A)).
% 2.20/2.39  exists A (-empty(A)&v1_membered(A)&v2_membered(A)&v3_membered(A)&v4_membered(A)&v5_membered(A)).
% 2.20/2.39  all A (v1_membered(A)-> (all B (element(B,A)->v1_xcmplx_0(B)))).
% 2.20/2.39  all A (v2_membered(A)-> (all B (element(B,A)->v1_xcmplx_0(B)&v1_xreal_0(B)))).
% 2.20/2.39  all A (v3_membered(A)-> (all B (element(B,A)->v1_xcmplx_0(B)&v1_xreal_0(B)&v1_rat_1(B)))).
% 2.20/2.39  all A (v4_membered(A)-> (all B (element(B,A)->v1_xcmplx_0(B)&v1_xreal_0(B)&v1_int_1(B)&v1_rat_1(B)))).
% 2.20/2.39  all A (v5_membered(A)-> (all B (element(B,A)->v1_xcmplx_0(B)&natural(B)&v1_xreal_0(B)&v1_int_1(B)&v1_rat_1(B)))).
% 2.20/2.39  all A (empty(A)->v1_membered(A)&v2_membered(A)&v3_membered(A)&v4_membered(A)&v5_membered(A)).
% 2.20/2.39  all A (v1_membered(A)-> (all B (element(B,powerset(A))->v1_membered(B)))).
% 2.20/2.39  all A (v2_membered(A)-> (all B (element(B,powerset(A))->v1_membered(B)&v2_membered(B)))).
% 2.20/2.39  all A (v3_membered(A)-> (all B (element(B,powerset(A))->v1_membered(B)&v2_membered(B)&v3_membered(B)))).
% 2.20/2.39  all A (v4_membered(A)-> (all B (element(B,powerset(A))->v1_membered(B)&v2_membered(B)&v3_membered(B)&v4_membered(B)))).
% 2.20/2.39  all A (v5_membered(A)-> (all B (element(B,powerset(A))->v1_membered(B)&v2_membered(B)&v3_membered(B)&v4_membered(B)&v5_membered(B)))).
% 2.20/2.39  all A B (element(A,B)->empty(B)|in(A,B)).
% 2.20/2.39  all A B C (-(in(A,B)&element(B,powerset(C))&empty(C))).
% 2.20/2.39  all A B (-(empty(A)&A!=B&empty(B))).
% 2.20/2.39  all A B (element(B,powerset(A))->subset_complement(A,subset_complement(A,B))=B).
% 2.20/2.39  all A B (in(A,B)-> -in(B,A)).
% 2.20/2.39  exists A one_sorted_str(A).
% 2.20/2.39  all A exists B element(B,A).
% 2.20/2.39  $T.
% 2.20/2.39  $T.
% 2.20/2.39  all A B (element(B,powerset(A))->element(subset_complement(A,B),powerset(A))).
% 2.20/2.39  $T.
% 2.20/2.39  $T.
% 2.20/2.39  $T.
% 2.20/2.39  exists A (one_sorted_str(A)& -empty_carrier(A)).
% 2.20/2.39  all A (-empty_carrier(A)&one_sorted_str(A)-> -empty(the_carrier(A))).
% 2.20/2.39  empty(empty_set).
% 2.20/2.39  v1_membered(empty_set).
% 2.20/2.39  v2_membered(empty_set).
% 2.20/2.39  v3_membered(empty_set).
% 2.20/2.39  v4_membered(empty_set).
% 2.20/2.39  v5_membered(empty_set).
% 2.20/2.39  all A B (in(A,B)->element(A,B)).
% 2.20/2.39  all A B (element(A,powerset(B))<->subset(A,B)).
% 2.20/2.39  all A B C (in(A,B)&element(B,powerset(C))->element(A,C)).
% 2.20/2.39  all A (empty(A)->A=empty_set).
% 2.20/2.39  all A B (-(in(A,B)&empty(B))).
% 2.20/2.39  -(all A (-empty_carrier(A)&one_sorted_str(A)-> (all B (element(B,powerset(the_carrier(A)))-> (all C (element(C,the_carrier(A))-> (in(C,subset_complement(the_carrier(A),B))<-> -in(C,B)))))))).
% 2.20/2.39  all A (A!=empty_set-> (all B (element(B,powerset(A))-> (all C (element(C,A)-> (-in(C,B)->in(C,subset_complement(A,B)))))))).
% 2.20/2.39  all A B C (element(C,powerset(A))-> -(in(B,subset_complement(A,C))&in(B,C))).
% 2.20/2.39  end_of_list.
% 2.20/2.39  
% 2.20/2.39  -------> usable clausifies to:
% 2.20/2.39  
% 2.20/2.39  list(usable).
% 2.20/2.39  0 [] A=A.
% 2.20/2.39  0 [] subset(A,A).
% 2.20/2.39  0 [] empty_carrier(A)| -one_sorted_str(A)|element($f1(A),powerset(the_carrier(A))).
% 2.20/2.39  0 [] empty_carrier(A)| -one_sorted_str(A)| -empty($f1(A)).
% 2.20/2.39  0 [] -v5_membered(A)|v4_membered(A).
% 2.20/2.39  0 [] -v4_membered(A)|v3_membered(A).
% 2.20/2.39  0 [] -v3_membered(A)|v2_membered(A).
% 2.20/2.39  0 [] -v2_membered(A)|v1_membered(A).
% 2.20/2.39  0 [] -empty($c1).
% 2.20/2.39  0 [] v1_membered($c1).
% 2.20/2.39  0 [] v2_membered($c1).
% 2.20/2.39  0 [] v3_membered($c1).
% 2.20/2.39  0 [] v4_membered($c1).
% 2.20/2.39  0 [] v5_membered($c1).
% 2.20/2.39  0 [] -v1_membered(A)| -element(B,A)|v1_xcmplx_0(B).
% 2.20/2.39  0 [] -v2_membered(A)| -element(B,A)|v1_xcmplx_0(B).
% 2.20/2.39  0 [] -v2_membered(A)| -element(B,A)|v1_xreal_0(B).
% 2.20/2.39  0 [] -v3_membered(A)| -element(B,A)|v1_xcmplx_0(B).
% 2.20/2.39  0 [] -v3_membered(A)| -element(B,A)|v1_xreal_0(B).
% 2.20/2.39  0 [] -v3_membered(A)| -element(B,A)|v1_rat_1(B).
% 2.20/2.39  0 [] -v4_membered(A)| -element(B,A)|v1_xcmplx_0(B).
% 2.20/2.39  0 [] -v4_membered(A)| -element(B,A)|v1_xreal_0(B).
% 2.20/2.39  0 [] -v4_membered(A)| -element(B,A)|v1_int_1(B).
% 2.20/2.39  0 [] -v4_membered(A)| -element(B,A)|v1_rat_1(B).
% 2.20/2.39  0 [] -v5_membered(A)| -element(B,A)|v1_xcmplx_0(B).
% 2.20/2.39  0 [] -v5_membered(A)| -element(B,A)|natural(B).
% 2.20/2.39  0 [] -v5_membered(A)| -element(B,A)|v1_xreal_0(B).
% 2.20/2.39  0 [] -v5_membered(A)| -element(B,A)|v1_int_1(B).
% 2.20/2.39  0 [] -v5_membered(A)| -element(B,A)|v1_rat_1(B).
% 2.20/2.39  0 [] -empty(A)|v1_membered(A).
% 2.20/2.39  0 [] -empty(A)|v2_membered(A).
% 2.20/2.39  0 [] -empty(A)|v3_membered(A).
% 2.20/2.39  0 [] -empty(A)|v4_membered(A).
% 2.20/2.39  0 [] -empty(A)|v5_membered(A).
% 2.20/2.39  0 [] -v1_membered(A)| -element(B,powerset(A))|v1_membered(B).
% 2.20/2.39  0 [] -v2_membered(A)| -element(B,powerset(A))|v1_membered(B).
% 2.20/2.39  0 [] -v2_membered(A)| -element(B,powerset(A))|v2_membered(B).
% 2.20/2.39  0 [] -v3_membered(A)| -element(B,powerset(A))|v1_membered(B).
% 2.20/2.39  0 [] -v3_membered(A)| -element(B,powerset(A))|v2_membered(B).
% 2.20/2.39  0 [] -v3_membered(A)| -element(B,powerset(A))|v3_membered(B).
% 2.20/2.39  0 [] -v4_membered(A)| -element(B,powerset(A))|v1_membered(B).
% 2.20/2.39  0 [] -v4_membered(A)| -element(B,powerset(A))|v2_membered(B).
% 2.20/2.39  0 [] -v4_membered(A)| -element(B,powerset(A))|v3_membered(B).
% 2.20/2.39  0 [] -v4_membered(A)| -element(B,powerset(A))|v4_membered(B).
% 2.20/2.39  0 [] -v5_membered(A)| -element(B,powerset(A))|v1_membered(B).
% 2.20/2.39  0 [] -v5_membered(A)| -element(B,powerset(A))|v2_membered(B).
% 2.20/2.39  0 [] -v5_membered(A)| -element(B,powerset(A))|v3_membered(B).
% 2.20/2.39  0 [] -v5_membered(A)| -element(B,powerset(A))|v4_membered(B).
% 2.20/2.39  0 [] -v5_membered(A)| -element(B,powerset(A))|v5_membered(B).
% 2.20/2.39  0 [] -element(A,B)|empty(B)|in(A,B).
% 2.20/2.39  0 [] -in(A,B)| -element(B,powerset(C))| -empty(C).
% 2.20/2.39  0 [] -empty(A)|A=B| -empty(B).
% 2.20/2.39  0 [] -element(B,powerset(A))|subset_complement(A,subset_complement(A,B))=B.
% 2.20/2.39  0 [] -in(A,B)| -in(B,A).
% 2.20/2.39  0 [] one_sorted_str($c2).
% 2.20/2.39  0 [] element($f2(A),A).
% 2.20/2.39  0 [] $T.
% 2.20/2.39  0 [] $T.
% 2.20/2.39  0 [] -element(B,powerset(A))|element(subset_complement(A,B),powerset(A)).
% 2.20/2.39  0 [] $T.
% 2.20/2.39  0 [] $T.
% 2.20/2.39  0 [] $T.
% 2.20/2.39  0 [] one_sorted_str($c3).
% 2.20/2.39  0 [] -empty_carrier($c3).
% 2.20/2.39  0 [] empty_carrier(A)| -one_sorted_str(A)| -empty(the_carrier(A)).
% 2.20/2.39  0 [] empty(empty_set).
% 2.20/2.39  0 [] v1_membered(empty_set).
% 2.20/2.39  0 [] v2_membered(empty_set).
% 2.20/2.39  0 [] v3_membered(empty_set).
% 2.20/2.39  0 [] v4_membered(empty_set).
% 2.20/2.39  0 [] v5_membered(empty_set).
% 2.20/2.39  0 [] -in(A,B)|element(A,B).
% 2.20/2.39  0 [] -element(A,powerset(B))|subset(A,B).
% 2.20/2.39  0 [] element(A,powerset(B))| -subset(A,B).
% 2.20/2.39  0 [] -in(A,B)| -element(B,powerset(C))|element(A,C).
% 2.20/2.39  0 [] -empty(A)|A=empty_set.
% 2.20/2.39  0 [] -in(A,B)| -empty(B).
% 2.20/2.39  0 [] -empty_carrier($c6).
% 2.20/2.39  0 [] one_sorted_str($c6).
% 2.20/2.39  0 [] element($c5,powerset(the_carrier($c6))).
% 2.20/2.39  0 [] element($c4,the_carrier($c6)).
% 2.20/2.39  0 [] in($c4,subset_complement(the_carrier($c6),$c5))| -in($c4,$c5).
% 2.20/2.39  0 [] -in($c4,subset_complement(the_carrier($c6),$c5))|in($c4,$c5).
% 2.20/2.39  0 [] A=empty_set| -element(B,powerset(A))| -element(C,A)|in(C,B)|in(C,subset_complement(A,B)).
% 2.20/2.39  0 [] -element(C,powerset(A))| -in(B,subset_complement(A,C))| -in(B,C).
% 2.20/2.39  end_of_list.
% 2.20/2.39  
% 2.20/2.39  SCAN INPUT: prop=0, horn=0, equality=1, symmetry=0, max_lits=5.
% 2.20/2.39  
% 2.20/2.39  This ia a non-Horn set with equality.  The strategy will be
% 2.20/2.39  Knuth-Bendix, ordered hyper_res, factoring, and unit
% 2.20/2.39  deletion, with positive clauses in sos and nonpositive
% 2.20/2.39  clauses in usable.
% 2.20/2.39  
% 2.20/2.39     dependent: set(knuth_bendix).
% 2.20/2.39     dependent: set(anl_eq).
% 2.20/2.39     dependent: set(para_from).
% 2.20/2.39     dependent: set(para_into).
% 2.20/2.39     dependent: clear(para_from_right).
% 2.20/2.39     dependent: clear(para_into_right).
% 2.20/2.39     dependent: set(para_from_vars).
% 2.20/2.39     dependent: set(eq_units_both_ways).
% 2.20/2.39     dependent: set(dynamic_demod_all).
% 2.20/2.39     dependent: set(dynamic_demod).
% 2.20/2.39     dependent: set(order_eq).
% 2.20/2.39     dependent: set(back_demod).
% 2.20/2.39     dependent: set(lrpo).
% 2.20/2.39     dependent: set(hyper_res).
% 2.20/2.39     dependent: set(unit_deletion).
% 2.20/2.39     dependent: set(factor).
% 2.20/2.39  
% 2.20/2.39  ------------> process usable:
% 2.20/2.39  ** KEPT (pick-wt=10): 1 [] empty_carrier(A)| -one_sorted_str(A)|element($f1(A),powerset(the_carrier(A))).
% 2.20/2.39  ** KEPT (pick-wt=7): 2 [] empty_carrier(A)| -one_sorted_str(A)| -empty($f1(A)).
% 2.20/2.39  ** KEPT (pick-wt=4): 3 [] -v5_membered(A)|v4_membered(A).
% 2.20/2.39  ** KEPT (pick-wt=4): 4 [] -v4_membered(A)|v3_membered(A).
% 2.20/2.39  ** KEPT (pick-wt=4): 5 [] -v3_membered(A)|v2_membered(A).
% 2.20/2.39  ** KEPT (pick-wt=4): 6 [] -v2_membered(A)|v1_membered(A).
% 2.20/2.39  ** KEPT (pick-wt=2): 7 [] -empty($c1).
% 2.20/2.39  ** KEPT (pick-wt=7): 8 [] -v1_membered(A)| -element(B,A)|v1_xcmplx_0(B).
% 2.20/2.39  ** KEPT (pick-wt=7): 9 [] -v2_membered(A)| -element(B,A)|v1_xcmplx_0(B).
% 2.20/2.39  ** KEPT (pick-wt=7): 10 [] -v2_membered(A)| -element(B,A)|v1_xreal_0(B).
% 2.20/2.39  ** KEPT (pick-wt=7): 11 [] -v3_membered(A)| -element(B,A)|v1_xcmplx_0(B).
% 2.20/2.39  ** KEPT (pick-wt=7): 12 [] -v3_membered(A)| -element(B,A)|v1_xreal_0(B).
% 2.20/2.39  ** KEPT (pick-wt=7): 13 [] -v3_membered(A)| -element(B,A)|v1_rat_1(B).
% 2.20/2.39  ** KEPT (pick-wt=7): 14 [] -v4_membered(A)| -element(B,A)|v1_xcmplx_0(B).
% 2.20/2.39  ** KEPT (pick-wt=7): 15 [] -v4_membered(A)| -element(B,A)|v1_xreal_0(B).
% 2.20/2.39  ** KEPT (pick-wt=7): 16 [] -v4_membered(A)| -element(B,A)|v1_int_1(B).
% 2.20/2.39  ** KEPT (pick-wt=7): 17 [] -v4_membered(A)| -element(B,A)|v1_rat_1(B).
% 2.20/2.39  ** KEPT (pick-wt=7): 18 [] -v5_membered(A)| -element(B,A)|v1_xcmplx_0(B).
% 2.20/2.39  ** KEPT (pick-wt=7): 19 [] -v5_membered(A)| -element(B,A)|natural(B).
% 2.20/2.39  ** KEPT (pick-wt=7): 20 [] -v5_membered(A)| -element(B,A)|v1_xreal_0(B).
% 2.20/2.39  ** KEPT (pick-wt=7): 21 [] -v5_membered(A)| -element(B,A)|v1_int_1(B).
% 2.20/2.39  ** KEPT (pick-wt=7): 22 [] -v5_membered(A)| -element(B,A)|v1_rat_1(B).
% 2.20/2.39  ** KEPT (pick-wt=4): 23 [] -empty(A)|v1_membered(A).
% 2.20/2.39  ** KEPT (pick-wt=4): 24 [] -empty(A)|v2_membered(A).
% 2.20/2.39  ** KEPT (pick-wt=4): 25 [] -empty(A)|v3_membered(A).
% 2.20/2.39  ** KEPT (pick-wt=4): 26 [] -empty(A)|v4_membered(A).
% 2.20/2.39  ** KEPT (pick-wt=4): 27 [] -empty(A)|v5_membered(A).
% 2.20/2.39  ** KEPT (pick-wt=8): 28 [] -v1_membered(A)| -element(B,powerset(A))|v1_membered(B).
% 2.20/2.39  ** KEPT (pick-wt=8): 29 [] -v2_membered(A)| -element(B,powerset(A))|v1_membered(B).
% 2.20/2.39  ** KEPT (pick-wt=8): 30 [] -v2_membered(A)| -element(B,powerset(A))|v2_membered(B).
% 2.20/2.39  ** KEPT (pick-wt=8): 31 [] -v3_membered(A)| -element(B,powerset(A))|v1_membered(B).
% 2.20/2.39  ** KEPT (pick-wt=8): 32 [] -v3_membered(A)| -element(B,powerset(A))|v2_membered(B).
% 2.20/2.39  ** KEPT (pick-wt=8): 33 [] -v3_membered(A)| -element(B,powerset(A))|v3_membered(B).
% 2.20/2.39  ** KEPT (pick-wt=8): 34 [] -v4_membered(A)| -element(B,powerset(A))|v1_membered(B).
% 2.20/2.39  ** KEPT (pick-wt=8): 35 [] -v4_membered(A)| -element(B,powerset(A))|v2_membered(B).
% 2.20/2.39  ** KEPT (pick-wt=8): 36 [] -v4_membered(A)| -element(B,powerset(A))|v3_membered(B).
% 2.20/2.39  ** KEPT (pick-wt=8): 37 [] -v4_membered(A)| -element(B,powerset(A))|v4_membered(B).
% 2.20/2.39  ** KEPT (pick-wt=8): 38 [] -v5_membered(A)| -element(B,powerset(A))|v1_membered(B).
% 2.20/2.39  ** KEPT (pick-wt=8): 39 [] -v5_membered(A)| -element(B,powerset(A))|v2_membered(B).
% 2.20/2.39  ** KEPT (pick-wt=8): 40 [] -v5_membered(A)| -element(B,powerset(A))|v3_membered(B).
% 2.20/2.39  ** KEPT (pick-wt=8): 41 [] -v5_membered(A)| -element(B,powerset(A))|v4_membered(B).
% 2.20/2.39  ** KEPT (pick-wt=8): 42 [] -v5_membered(A)| -element(B,powerset(A))|v5_membered(B).
% 2.20/2.39  ** KEPT (pick-wt=8): 43 [] -element(A,B)|empty(B)|in(A,B).
% 2.20/2.39  ** KEPT (pick-wt=9): 44 [] -in(A,B)| -element(B,powerset(C))| -empty(C).
% 2.20/2.39  ** KEPT (pick-wt=7): 45 [] -empty(A)|A=B| -empty(B).
% 2.20/2.39  ** KEPT (pick-wt=11): 46 [] -element(A,powerset(B))|subset_complement(B,subset_complement(B,A))=A.
% 2.20/2.39  ** KEPT (pick-wt=6): 47 [] -in(A,B)| -in(B,A).
% 2.20/2.39  ** KEPT (pick-wt=10): 48 [] -element(A,powerset(B))|element(subset_complement(B,A),powerset(B)).
% 2.20/2.39  ** KEPT (pick-wt=2): 49 [] -empty_carrier($c3).
% 2.20/2.39  ** KEPT (pick-wt=7): 50 [] empty_carrier(A)| -one_sorted_str(A)| -empty(the_carrier(A)).
% 2.20/2.39  ** KEPT (pick-wt=6): 51 [] -in(A,B)|element(A,B).
% 2.20/2.39  ** KEPT (pick-wt=7): 52 [] -element(A,powerset(B))|subset(A,B).
% 2.20/2.39  ** KEPT (pick-wt=7): 53 [] element(A,powerset(B))| -subset(A,B).
% 2.20/2.39  ** KEPT (pick-wt=10): 54 [] -in(A,B)| -element(B,powerset(C))|element(A,C).
% 2.20/2.39  ** KEPT (pick-wt=5): 55 [] -empty(A)|A=empty_set.
% 2.20/2.39  ** KEPT (pick-wt=5): 56 [] -in(A,B)| -empty(B).
% 2.20/2.39  ** KEPT (pick-wt=2): 57 [] -empty_carrier($c6).
% 2.20/2.39  ** KEPT (pick-wt=9): 58 [] in($c4,subset_complement(the_carrier($c6),$c5))| -in($c4,$c5).
% 2.20/2.39  ** KEPT (pick-wt=9): 59 [] -in($c4,subset_complement(the_carrier($c6),$c5))|in($c4,$c5).
% 2.20/2.39  ** KEPT (pick-wt=18): 60 [] A=empty_set| -element(B,powerset(A))| -element(C,A)|in(C,B)|in(C,subset_complement(A,B)).
% 2.20/2.39  ** KEPT (pick-wt=12): 61 [] -element(A,powerset(B))| -in(C,subset_complement(B,A))| -in(C,A).
% 15.21/15.36  
% 15.21/15.36  ------------> process sos:
% 15.21/15.36  ** KEPT (pick-wt=3): 64 [] A=A.
% 15.21/15.36  ** KEPT (pick-wt=3): 65 [] subset(A,A).
% 15.21/15.36  ** KEPT (pick-wt=2): 66 [] v1_membered($c1).
% 15.21/15.36  ** KEPT (pick-wt=2): 67 [] v2_membered($c1).
% 15.21/15.36  ** KEPT (pick-wt=2): 68 [] v3_membered($c1).
% 15.21/15.36  ** KEPT (pick-wt=2): 69 [] v4_membered($c1).
% 15.21/15.36  ** KEPT (pick-wt=2): 70 [] v5_membered($c1).
% 15.21/15.36  ** KEPT (pick-wt=2): 71 [] one_sorted_str($c2).
% 15.21/15.36  ** KEPT (pick-wt=4): 72 [] element($f2(A),A).
% 15.21/15.36  ** KEPT (pick-wt=2): 73 [] one_sorted_str($c3).
% 15.21/15.36  ** KEPT (pick-wt=2): 74 [] empty(empty_set).
% 15.21/15.36  ** KEPT (pick-wt=2): 75 [] v1_membered(empty_set).
% 15.21/15.36  ** KEPT (pick-wt=2): 76 [] v2_membered(empty_set).
% 15.21/15.36  ** KEPT (pick-wt=2): 77 [] v3_membered(empty_set).
% 15.21/15.36  ** KEPT (pick-wt=2): 78 [] v4_membered(empty_set).
% 15.21/15.36  ** KEPT (pick-wt=2): 79 [] v5_membered(empty_set).
% 15.21/15.36  ** KEPT (pick-wt=2): 80 [] one_sorted_str($c6).
% 15.21/15.36  ** KEPT (pick-wt=5): 81 [] element($c5,powerset(the_carrier($c6))).
% 15.21/15.36  ** KEPT (pick-wt=4): 82 [] element($c4,the_carrier($c6)).
% 15.21/15.36    Following clause subsumed by 64 during input processing: 0 [copy,64,flip.1] A=A.
% 15.21/15.36  64 back subsumes 62.
% 15.21/15.36  
% 15.21/15.36  ======= end of input processing =======
% 15.21/15.36  
% 15.21/15.36  =========== start of search ===========
% 15.21/15.36  
% 15.21/15.36  
% 15.21/15.36  Resetting weight limit to 6.
% 15.21/15.36  
% 15.21/15.36  
% 15.21/15.36  Resetting weight limit to 6.
% 15.21/15.36  
% 15.21/15.36  sos_size=960
% 15.21/15.36  
% 15.21/15.36  Search stopped because sos empty.
% 15.21/15.36  
% 15.21/15.36  
% 15.21/15.36  Search stopped because sos empty.
% 15.21/15.36  
% 15.21/15.36  ============ end of search ============
% 15.21/15.36  
% 15.21/15.36  -------------- statistics -------------
% 15.21/15.36  clauses given               1044
% 15.21/15.36  clauses generated         667702
% 15.21/15.36  clauses kept                1192
% 15.21/15.36  clauses forward subsumed    4616
% 15.21/15.36  clauses back subsumed         41
% 15.21/15.36  Kbytes malloced             6835
% 15.21/15.36  
% 15.21/15.36  ----------- times (seconds) -----------
% 15.21/15.36  user CPU time         12.97          (0 hr, 0 min, 12 sec)
% 15.21/15.36  system CPU time        0.01          (0 hr, 0 min, 0 sec)
% 15.21/15.36  wall-clock time       15             (0 hr, 0 min, 15 sec)
% 15.21/15.36  
% 15.21/15.36  Process 29771 finished Wed Jul 27 07:54:15 2022
% 15.21/15.37  Otter interrupted
% 15.21/15.37  PROOF NOT FOUND
%------------------------------------------------------------------------------