TSTP Solution File: SEU163+2 by Prover9---1109a

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Prover9---1109a
% Problem  : SEU163+2 : TPTP v8.1.0. Released v3.3.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : tptp2X_and_run_prover9 %d %s

% Computer : n023.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  : 600s
% DateTime : Tue Jul 19 13:29:32 EDT 2022

% Result   : Theorem 0.72s 1.10s
% Output   : Refutation 0.72s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.10/0.11  % Problem  : SEU163+2 : TPTP v8.1.0. Released v3.3.0.
% 0.10/0.11  % Command  : tptp2X_and_run_prover9 %d %s
% 0.11/0.32  % Computer : n023.cluster.edu
% 0.11/0.32  % Model    : x86_64 x86_64
% 0.11/0.32  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.11/0.32  % Memory   : 8042.1875MB
% 0.11/0.32  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.11/0.32  % CPULimit : 300
% 0.11/0.32  % WCLimit  : 600
% 0.11/0.32  % DateTime : Mon Jun 20 13:24:33 EDT 2022
% 0.11/0.32  % CPUTime  : 
% 0.68/1.00  ============================== Prover9 ===============================
% 0.68/1.00  Prover9 (32) version 2009-11A, November 2009.
% 0.68/1.00  Process 8041 was started by sandbox2 on n023.cluster.edu,
% 0.68/1.00  Mon Jun 20 13:24:34 2022
% 0.68/1.00  The command was "/export/starexec/sandbox2/solver/bin/prover9 -t 300 -f /tmp/Prover9_7780_n023.cluster.edu".
% 0.68/1.00  ============================== end of head ===========================
% 0.68/1.00  
% 0.68/1.00  ============================== INPUT =================================
% 0.68/1.00  
% 0.68/1.00  % Reading from file /tmp/Prover9_7780_n023.cluster.edu
% 0.68/1.00  
% 0.68/1.00  set(prolog_style_variables).
% 0.68/1.00  set(auto2).
% 0.68/1.00      % set(auto2) -> set(auto).
% 0.68/1.00      % set(auto) -> set(auto_inference).
% 0.68/1.00      % set(auto) -> set(auto_setup).
% 0.68/1.00      % set(auto_setup) -> set(predicate_elim).
% 0.68/1.00      % set(auto_setup) -> assign(eq_defs, unfold).
% 0.68/1.00      % set(auto) -> set(auto_limits).
% 0.68/1.00      % set(auto_limits) -> assign(max_weight, "100.000").
% 0.68/1.00      % set(auto_limits) -> assign(sos_limit, 20000).
% 0.68/1.00      % set(auto) -> set(auto_denials).
% 0.68/1.00      % set(auto) -> set(auto_process).
% 0.68/1.00      % set(auto2) -> assign(new_constants, 1).
% 0.68/1.00      % set(auto2) -> assign(fold_denial_max, 3).
% 0.68/1.00      % set(auto2) -> assign(max_weight, "200.000").
% 0.68/1.00      % set(auto2) -> assign(max_hours, 1).
% 0.68/1.00      % assign(max_hours, 1) -> assign(max_seconds, 3600).
% 0.68/1.00      % set(auto2) -> assign(max_seconds, 0).
% 0.68/1.00      % set(auto2) -> assign(max_minutes, 5).
% 0.68/1.00      % assign(max_minutes, 5) -> assign(max_seconds, 300).
% 0.68/1.00      % set(auto2) -> set(sort_initial_sos).
% 0.68/1.00      % set(auto2) -> assign(sos_limit, -1).
% 0.68/1.00      % set(auto2) -> assign(lrs_ticks, 3000).
% 0.68/1.00      % set(auto2) -> assign(max_megs, 400).
% 0.68/1.00      % set(auto2) -> assign(stats, some).
% 0.68/1.00      % set(auto2) -> clear(echo_input).
% 0.68/1.00      % set(auto2) -> set(quiet).
% 0.68/1.00      % set(auto2) -> clear(print_initial_clauses).
% 0.68/1.00      % set(auto2) -> clear(print_given).
% 0.68/1.00  assign(lrs_ticks,-1).
% 0.68/1.00  assign(sos_limit,10000).
% 0.68/1.00  assign(order,kbo).
% 0.68/1.00  set(lex_order_vars).
% 0.68/1.00  clear(print_given).
% 0.68/1.00  
% 0.68/1.00  % formulas(sos).  % not echoed (93 formulas)
% 0.68/1.00  
% 0.68/1.00  ============================== end of input ==========================
% 0.68/1.00  
% 0.68/1.00  % From the command line: assign(max_seconds, 300).
% 0.68/1.00  
% 0.68/1.00  ============================== PROCESS NON-CLAUSAL FORMULAS ==========
% 0.68/1.00  
% 0.68/1.00  % Formulas that are not ordinary clauses:
% 0.68/1.00  1 (all A all B (in(A,B) -> -in(B,A))) # label(antisymmetry_r2_hidden) # label(axiom) # label(non_clause).  [assumption].
% 0.68/1.00  2 (all A all B (proper_subset(A,B) -> -proper_subset(B,A))) # label(antisymmetry_r2_xboole_0) # label(axiom) # label(non_clause).  [assumption].
% 0.68/1.00  3 (all A all B unordered_pair(A,B) = unordered_pair(B,A)) # label(commutativity_k2_tarski) # label(axiom) # label(non_clause).  [assumption].
% 0.68/1.00  4 (all A all B set_union2(A,B) = set_union2(B,A)) # label(commutativity_k2_xboole_0) # label(axiom) # label(non_clause).  [assumption].
% 0.68/1.00  5 (all A all B set_intersection2(A,B) = set_intersection2(B,A)) # label(commutativity_k3_xboole_0) # label(axiom) # label(non_clause).  [assumption].
% 0.68/1.00  6 (all A all B (A = B <-> subset(A,B) & subset(B,A))) # label(d10_xboole_0) # label(axiom) # label(non_clause).  [assumption].
% 0.68/1.00  7 (all A all B (B = singleton(A) <-> (all C (in(C,B) <-> C = A)))) # label(d1_tarski) # label(axiom) # label(non_clause).  [assumption].
% 0.68/1.00  8 (all A (A = empty_set <-> (all B -in(B,A)))) # label(d1_xboole_0) # label(axiom) # label(non_clause).  [assumption].
% 0.68/1.00  9 (all A all B (B = powerset(A) <-> (all C (in(C,B) <-> subset(C,A))))) # label(d1_zfmisc_1) # label(axiom) # label(non_clause).  [assumption].
% 0.68/1.00  10 (all A all B all C (C = unordered_pair(A,B) <-> (all D (in(D,C) <-> D = A | D = B)))) # label(d2_tarski) # label(axiom) # label(non_clause).  [assumption].
% 0.68/1.00  11 (all A all B all C (C = set_union2(A,B) <-> (all D (in(D,C) <-> in(D,A) | in(D,B))))) # label(d2_xboole_0) # label(axiom) # label(non_clause).  [assumption].
% 0.68/1.00  12 (all A all B all C (C = cartesian_product2(A,B) <-> (all D (in(D,C) <-> (exists E exists F (in(E,A) & in(F,B) & D = ordered_pair(E,F))))))) # label(d2_zfmisc_1) # label(axiom) # label(non_clause).  [assumption].
% 0.68/1.00  13 (all A all B (subset(A,B) <-> (all C (in(C,A) -> in(C,B))))) # label(d3_tarski) # label(axiom) # label(non_clause).  [assumption].
% 0.68/1.00  14 (all A all B all C (C = set_intersection2(A,B) <-> (all D (in(D,C) <-> in(D,A) & in(D,B))))) # label(d3_xboole_0) # label(axiom) # label(non_clause).  [assumption].
% 0.68/1.00  15 (all A all B (B = union(A) <-> (all C (in(C,B) <-> (exists D (in(C,D) & in(D,A))))))) # label(d4_tarski) # label(axiom) # label(non_clause).  [assumption].
% 0.68/1.00  16 (all A all B all C (C = set_difference(A,B) <-> (all D (in(D,C) <-> in(D,A) & -in(D,B))))) # label(d4_xboole_0) # label(axiom) # label(non_clause).  [assumption].
% 0.68/1.00  17 (all A all B ordered_pair(A,B) = unordered_pair(unordered_pair(A,B),singleton(A))) # label(d5_tarski) # label(axiom) # label(non_clause).  [assumption].
% 0.68/1.00  18 (all A all B (disjoint(A,B) <-> set_intersection2(A,B) = empty_set)) # label(d7_xboole_0) # label(axiom) # label(non_clause).  [assumption].
% 0.68/1.00  19 (all A all B (proper_subset(A,B) <-> subset(A,B) & A != B)) # label(d8_xboole_0) # label(axiom) # label(non_clause).  [assumption].
% 0.68/1.00  20 $T # label(dt_k1_tarski) # label(axiom) # label(non_clause).  [assumption].
% 0.68/1.00  21 $T # label(dt_k1_xboole_0) # label(axiom) # label(non_clause).  [assumption].
% 0.68/1.00  22 $T # label(dt_k1_zfmisc_1) # label(axiom) # label(non_clause).  [assumption].
% 0.68/1.00  23 $T # label(dt_k2_tarski) # label(axiom) # label(non_clause).  [assumption].
% 0.68/1.00  24 $T # label(dt_k2_xboole_0) # label(axiom) # label(non_clause).  [assumption].
% 0.68/1.00  25 $T # label(dt_k2_zfmisc_1) # label(axiom) # label(non_clause).  [assumption].
% 0.68/1.00  26 $T # label(dt_k3_tarski) # label(axiom) # label(non_clause).  [assumption].
% 0.68/1.00  27 $T # label(dt_k3_xboole_0) # label(axiom) # label(non_clause).  [assumption].
% 0.68/1.00  28 $T # label(dt_k4_tarski) # label(axiom) # label(non_clause).  [assumption].
% 0.68/1.00  29 $T # label(dt_k4_xboole_0) # label(axiom) # label(non_clause).  [assumption].
% 0.68/1.00  30 (all A all B -empty(ordered_pair(A,B))) # label(fc1_zfmisc_1) # label(axiom) # label(non_clause).  [assumption].
% 0.68/1.00  31 (all A all B (-empty(A) -> -empty(set_union2(A,B)))) # label(fc2_xboole_0) # label(axiom) # label(non_clause).  [assumption].
% 0.68/1.00  32 (all A all B (-empty(A) -> -empty(set_union2(B,A)))) # label(fc3_xboole_0) # label(axiom) # label(non_clause).  [assumption].
% 0.68/1.00  33 (all A all B set_union2(A,A) = A) # label(idempotence_k2_xboole_0) # label(axiom) # label(non_clause).  [assumption].
% 0.68/1.00  34 (all A all B set_intersection2(A,A) = A) # label(idempotence_k3_xboole_0) # label(axiom) # label(non_clause).  [assumption].
% 0.68/1.00  35 (all A all B -proper_subset(A,A)) # label(irreflexivity_r2_xboole_0) # label(axiom) # label(non_clause).  [assumption].
% 0.68/1.00  36 (all A singleton(A) != empty_set) # label(l1_zfmisc_1) # label(lemma) # label(non_clause).  [assumption].
% 0.68/1.00  37 (all A all B (in(A,B) -> set_union2(singleton(A),B) = B)) # label(l23_zfmisc_1) # label(lemma) # label(non_clause).  [assumption].
% 0.68/1.00  38 (all A all B -(disjoint(singleton(A),B) & in(A,B))) # label(l25_zfmisc_1) # label(lemma) # label(non_clause).  [assumption].
% 0.68/1.00  39 (all A all B (-in(A,B) -> disjoint(singleton(A),B))) # label(l28_zfmisc_1) # label(lemma) # label(non_clause).  [assumption].
% 0.68/1.00  40 (all A all B (subset(singleton(A),B) <-> in(A,B))) # label(l2_zfmisc_1) # label(lemma) # label(non_clause).  [assumption].
% 0.68/1.00  41 (all A all B (set_difference(A,B) = empty_set <-> subset(A,B))) # label(l32_xboole_1) # label(lemma) # label(non_clause).  [assumption].
% 0.68/1.00  42 (all A all B all C (subset(A,B) -> in(C,A) | subset(A,set_difference(B,singleton(C))))) # label(l3_zfmisc_1) # label(lemma) # label(non_clause).  [assumption].
% 0.68/1.00  43 (all A all B (subset(A,singleton(B)) <-> A = empty_set | A = singleton(B))) # label(l4_zfmisc_1) # label(lemma) # label(non_clause).  [assumption].
% 0.68/1.00  44 (all A all B (in(A,B) -> subset(A,union(B)))) # label(l50_zfmisc_1) # label(lemma) # label(non_clause).  [assumption].
% 0.68/1.00  45 (all A all B all C all D (in(ordered_pair(A,B),cartesian_product2(C,D)) <-> in(A,C) & in(B,D))) # label(l55_zfmisc_1) # label(lemma) # label(non_clause).  [assumption].
% 0.68/1.00  46 (exists A empty(A)) # label(rc1_xboole_0) # label(axiom) # label(non_clause).  [assumption].
% 0.68/1.00  47 (exists A -empty(A)) # label(rc2_xboole_0) # label(axiom) # label(non_clause).  [assumption].
% 0.68/1.00  48 (all A all B subset(A,A)) # label(reflexivity_r1_tarski) # label(axiom) # label(non_clause).  [assumption].
% 0.68/1.00  49 (all A all B (disjoint(A,B) -> disjoint(B,A))) # label(symmetry_r1_xboole_0) # label(axiom) # label(non_clause).  [assumption].
% 0.68/1.00  50 (all A all B all C all D -(unordered_pair(A,B) = unordered_pair(C,D) & A != C & A != D)) # label(t10_zfmisc_1) # label(lemma) # label(non_clause).  [assumption].
% 0.68/1.00  51 (all A all B (subset(A,B) -> set_union2(A,B) = B)) # label(t12_xboole_1) # label(lemma) # label(non_clause).  [assumption].
% 0.68/1.00  52 (all A all B subset(set_intersection2(A,B),A)) # label(t17_xboole_1) # label(lemma) # label(non_clause).  [assumption].
% 0.68/1.00  53 (all A all B all C (subset(A,B) & subset(A,C) -> subset(A,set_intersection2(B,C)))) # label(t19_xboole_1) # label(lemma) # label(non_clause).  [assumption].
% 0.68/1.00  54 (all A set_union2(A,empty_set) = A) # label(t1_boole) # label(axiom) # label(non_clause).  [assumption].
% 0.68/1.00  55 (all A all B all C (subset(A,B) & subset(B,C) -> subset(A,C))) # label(t1_xboole_1) # label(lemma) # label(non_clause).  [assumption].
% 0.68/1.00  56 (all A all B all C (subset(A,B) -> subset(set_intersection2(A,C),set_intersection2(B,C)))) # label(t26_xboole_1) # label(lemma) # label(non_clause).  [assumption].
% 0.68/1.00  57 (all A all B (subset(A,B) -> set_intersection2(A,B) = A)) # label(t28_xboole_1) # label(lemma) # label(non_clause).  [assumption].
% 0.68/1.00  58 (all A set_intersection2(A,empty_set) = empty_set) # label(t2_boole) # label(axiom) # label(non_clause).  [assumption].
% 0.68/1.00  59 (all A all B ((all C (in(C,A) <-> in(C,B))) -> A = B)) # label(t2_tarski) # label(axiom) # label(non_clause).  [assumption].
% 0.68/1.00  60 (all A subset(empty_set,A)) # label(t2_xboole_1) # label(lemma) # label(non_clause).  [assumption].
% 0.68/1.00  61 (all A all B all C (subset(A,B) -> subset(set_difference(A,C),set_difference(B,C)))) # label(t33_xboole_1) # label(lemma) # label(non_clause).  [assumption].
% 0.68/1.00  62 (all A all B all C all D (ordered_pair(A,B) = ordered_pair(C,D) -> A = C & B = D)) # label(t33_zfmisc_1) # label(lemma) # label(non_clause).  [assumption].
% 0.68/1.00  63 (all A all B subset(set_difference(A,B),A)) # label(t36_xboole_1) # label(lemma) # label(non_clause).  [assumption].
% 0.68/1.00  64 (all A all B (set_difference(A,B) = empty_set <-> subset(A,B))) # label(t37_xboole_1) # label(lemma) # label(non_clause).  [assumption].
% 0.68/1.00  65 (all A all B (subset(singleton(A),B) <-> in(A,B))) # label(t37_zfmisc_1) # label(lemma) # label(non_clause).  [assumption].
% 0.68/1.00  66 (all A all B all C (subset(unordered_pair(A,B),C) <-> in(A,C) & in(B,C))) # label(t38_zfmisc_1) # label(lemma) # label(non_clause).  [assumption].
% 0.68/1.00  67 (all A all B set_union2(A,set_difference(B,A)) = set_union2(A,B)) # label(t39_xboole_1) # label(lemma) # label(non_clause).  [assumption].
% 0.68/1.00  68 (all A all B (subset(A,singleton(B)) <-> A = empty_set | A = singleton(B))) # label(t39_zfmisc_1) # label(lemma) # label(non_clause).  [assumption].
% 0.68/1.00  69 (all A set_difference(A,empty_set) = A) # label(t3_boole) # label(axiom) # label(non_clause).  [assumption].
% 0.68/1.00  70 (all A all B (-(-disjoint(A,B) & (all C -(in(C,A) & in(C,B)))) & -((exists C (in(C,A) & in(C,B))) & disjoint(A,B)))) # label(t3_xboole_0) # label(lemma) # label(non_clause).  [assumption].
% 0.68/1.00  71 (all A (subset(A,empty_set) -> A = empty_set)) # label(t3_xboole_1) # label(lemma) # label(non_clause).  [assumption].
% 0.68/1.00  72 (all A all B set_difference(set_union2(A,B),B) = set_difference(A,B)) # label(t40_xboole_1) # label(lemma) # label(non_clause).  [assumption].
% 0.68/1.00  73 (all A all B (subset(A,B) -> B = set_union2(A,set_difference(B,A)))) # label(t45_xboole_1) # label(lemma) # label(non_clause).  [assumption].
% 0.68/1.00  74 (all A all B (in(A,B) -> set_union2(singleton(A),B) = B)) # label(t46_zfmisc_1) # label(lemma) # label(non_clause).  [assumption].
% 0.68/1.00  75 (all A all B set_difference(A,set_difference(A,B)) = set_intersection2(A,B)) # label(t48_xboole_1) # label(lemma) # label(non_clause).  [assumption].
% 0.68/1.00  76 (all A set_difference(empty_set,A) = empty_set) # label(t4_boole) # label(axiom) # label(non_clause).  [assumption].
% 0.68/1.00  77 (all A all B (-(-disjoint(A,B) & (all C -in(C,set_intersection2(A,B)))) & -((exists C in(C,set_intersection2(A,B))) & disjoint(A,B)))) # label(t4_xboole_0) # label(lemma) # label(non_clause).  [assumption].
% 0.68/1.00  78 (all A all B -(subset(A,B) & proper_subset(B,A))) # label(t60_xboole_1) # label(lemma) # label(non_clause).  [assumption].
% 0.72/1.10  79 (all A all B all C (subset(A,B) & disjoint(B,C) -> disjoint(A,C))) # label(t63_xboole_1) # label(lemma) # label(non_clause).  [assumption].
% 0.72/1.10  80 (all A all B (set_difference(A,singleton(B)) = A <-> -in(B,A))) # label(t65_zfmisc_1) # label(lemma) # label(non_clause).  [assumption].
% 0.72/1.10  81 (all A unordered_pair(A,A) = singleton(A)) # label(t69_enumset1) # label(lemma) # label(non_clause).  [assumption].
% 0.72/1.10  82 (all A (empty(A) -> A = empty_set)) # label(t6_boole) # label(axiom) # label(non_clause).  [assumption].
% 0.72/1.10  83 (all A all B (subset(singleton(A),singleton(B)) -> A = B)) # label(t6_zfmisc_1) # label(lemma) # label(non_clause).  [assumption].
% 0.72/1.10  84 (all A all B -(in(A,B) & empty(B))) # label(t7_boole) # label(axiom) # label(non_clause).  [assumption].
% 0.72/1.10  85 (all A all B subset(A,set_union2(A,B))) # label(t7_xboole_1) # label(lemma) # label(non_clause).  [assumption].
% 0.72/1.10  86 (all A all B (disjoint(A,B) <-> set_difference(A,B) = A)) # label(t83_xboole_1) # label(lemma) # label(non_clause).  [assumption].
% 0.72/1.10  87 (all A all B -(empty(A) & A != B & empty(B))) # label(t8_boole) # label(axiom) # label(non_clause).  [assumption].
% 0.72/1.10  88 (all A all B all C (subset(A,B) & subset(C,B) -> subset(set_union2(A,C),B))) # label(t8_xboole_1) # label(lemma) # label(non_clause).  [assumption].
% 0.72/1.10  89 (all A all B all C (singleton(A) = unordered_pair(B,C) -> A = B)) # label(t8_zfmisc_1) # label(lemma) # label(non_clause).  [assumption].
% 0.72/1.10  90 (all A all B all C (singleton(A) = unordered_pair(B,C) -> B = C)) # label(t9_zfmisc_1) # label(lemma) # label(non_clause).  [assumption].
% 0.72/1.10  91 -(all A all B (in(A,B) -> subset(A,union(B)))) # label(t92_zfmisc_1) # label(negated_conjecture) # label(non_clause).  [assumption].
% 0.72/1.10  
% 0.72/1.10  ============================== end of process non-clausal formulas ===
% 0.72/1.10  
% 0.72/1.10  ============================== PROCESS INITIAL CLAUSES ===============
% 0.72/1.10  
% 0.72/1.10  ============================== PREDICATE ELIMINATION =================
% 0.72/1.10  
% 0.72/1.10  ============================== end predicate elimination =============
% 0.72/1.10  
% 0.72/1.10  Auto_denials:  (non-Horn, no changes).
% 0.72/1.10  
% 0.72/1.10  Term ordering decisions:
% 0.72/1.10  Function symbol KB weights:  empty_set=1. c1=1. c2=1. c3=1. c4=1. set_difference=1. set_union2=1. set_intersection2=1. unordered_pair=1. ordered_pair=1. cartesian_product2=1. f1=1. f3=1. f11=1. f14=1. f15=1. f17=1. f18=1. f19=1. singleton=1. union=1. powerset=1. f2=1. f4=1. f5=1. f8=1. f9=1. f10=1. f12=1. f13=1. f16=1. f6=1. f7=1.
% 0.72/1.10  
% 0.72/1.10  ============================== end of process initial clauses ========
% 0.72/1.10  
% 0.72/1.10  ============================== CLAUSES FOR SEARCH ====================
% 0.72/1.10  
% 0.72/1.10  ============================== end of clauses for search =============
% 0.72/1.10  
% 0.72/1.10  ============================== SEARCH ================================
% 0.72/1.10  
% 0.72/1.10  % Starting search at 0.04 seconds.
% 0.72/1.10  
% 0.72/1.10  ============================== PROOF =================================
% 0.72/1.10  % SZS status Theorem
% 0.72/1.10  % SZS output start Refutation
% 0.72/1.10  
% 0.72/1.10  % Proof 1 at 0.12 (+ 0.00) seconds.
% 0.72/1.10  % Length of proof is 6.
% 0.72/1.10  % Level of proof is 2.
% 0.72/1.10  % Maximum clause weight is 7.000.
% 0.72/1.10  % Given clauses 95.
% 0.72/1.10  
% 0.72/1.10  44 (all A all B (in(A,B) -> subset(A,union(B)))) # label(l50_zfmisc_1) # label(lemma) # label(non_clause).  [assumption].
% 0.72/1.10  91 -(all A all B (in(A,B) -> subset(A,union(B)))) # label(t92_zfmisc_1) # label(negated_conjecture) # label(non_clause).  [assumption].
% 0.72/1.10  179 -in(A,B) | subset(A,union(B)) # label(l50_zfmisc_1) # label(lemma).  [clausify(44)].
% 0.72/1.10  246 in(c3,c4) # label(t92_zfmisc_1) # label(negated_conjecture).  [clausify(91)].
% 0.72/1.10  247 -subset(c3,union(c4)) # label(t92_zfmisc_1) # label(negated_conjecture).  [clausify(91)].
% 0.72/1.10  979 $F.  [resolve(246,a,179,a),unit_del(a,247)].
% 0.72/1.10  
% 0.72/1.10  % SZS output end Refutation
% 0.72/1.10  ============================== end of proof ==========================
% 0.72/1.10  
% 0.72/1.10  ============================== STATISTICS ============================
% 0.72/1.10  
% 0.72/1.10  Given=95. Generated=1363. Kept=869. proofs=1.
% 0.72/1.10  Usable=94. Sos=727. Demods=21. Limbo=2, Disabled=195. Hints=0.
% 0.72/1.10  Megabytes=1.22.
% 0.72/1.10  User_CPU=0.12, System_CPU=0.00, Wall_clock=0.
% 0.72/1.10  
% 0.72/1.10  ============================== end of statistics =====================
% 0.72/1.10  
% 0.72/1.10  ============================== end of search =========================
% 0.72/1.10  
% 0.72/1.10  THEOREM PROVED
% 0.72/1.10  % SZS status Theorem
% 0.72/1.10  
% 0.72/1.10  Exiting with 1 proof.
% 0.72/1.10  
% 0.72/1.10  Process 8041 exit (max_proofs) Mon Jun 20 13:24:34 2022
% 0.72/1.10  Prover9 interrupted
%------------------------------------------------------------------------------