TSTP Solution File: GEO233+1 by Prover9---1109a
View Problem
- Process Solution
%------------------------------------------------------------------------------
% File : Prover9---1109a
% Problem : GEO233+1 : TPTP v8.1.0. Bugfixed v6.4.0.
% Transfm : none
% Format : tptp:raw
% Command : tptp2X_and_run_prover9 %d %s
% Computer : n032.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 : Sat Jul 16 05:55:22 EDT 2022
% Result : Theorem 0.48s 0.80s
% Output : Refutation 0.48s
% Verified :
% SZS Type : -
% Comments :
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.09 % Problem : GEO233+1 : TPTP v8.1.0. Bugfixed v6.4.0.
% 0.00/0.10 % Command : tptp2X_and_run_prover9 %d %s
% 0.09/0.29 % Computer : n032.cluster.edu
% 0.09/0.29 % Model : x86_64 x86_64
% 0.09/0.29 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.09/0.29 % Memory : 8042.1875MB
% 0.09/0.29 % OS : Linux 3.10.0-693.el7.x86_64
% 0.09/0.29 % CPULimit : 300
% 0.09/0.29 % WCLimit : 600
% 0.09/0.29 % DateTime : Sat Jun 18 13:36:32 EDT 2022
% 0.09/0.29 % CPUTime :
% 0.48/0.80 ============================== Prover9 ===============================
% 0.48/0.80 Prover9 (32) version 2009-11A, November 2009.
% 0.48/0.80 Process 13381 was started by sandbox on n032.cluster.edu,
% 0.48/0.80 Sat Jun 18 13:36:32 2022
% 0.48/0.80 The command was "/export/starexec/sandbox/solver/bin/prover9 -t 300 -f /tmp/Prover9_13228_n032.cluster.edu".
% 0.48/0.80 ============================== end of head ===========================
% 0.48/0.80
% 0.48/0.80 ============================== INPUT =================================
% 0.48/0.80
% 0.48/0.80 % Reading from file /tmp/Prover9_13228_n032.cluster.edu
% 0.48/0.80
% 0.48/0.80 set(prolog_style_variables).
% 0.48/0.80 set(auto2).
% 0.48/0.80 % set(auto2) -> set(auto).
% 0.48/0.80 % set(auto) -> set(auto_inference).
% 0.48/0.80 % set(auto) -> set(auto_setup).
% 0.48/0.80 % set(auto_setup) -> set(predicate_elim).
% 0.48/0.80 % set(auto_setup) -> assign(eq_defs, unfold).
% 0.48/0.80 % set(auto) -> set(auto_limits).
% 0.48/0.80 % set(auto_limits) -> assign(max_weight, "100.000").
% 0.48/0.80 % set(auto_limits) -> assign(sos_limit, 20000).
% 0.48/0.80 % set(auto) -> set(auto_denials).
% 0.48/0.80 % set(auto) -> set(auto_process).
% 0.48/0.80 % set(auto2) -> assign(new_constants, 1).
% 0.48/0.80 % set(auto2) -> assign(fold_denial_max, 3).
% 0.48/0.80 % set(auto2) -> assign(max_weight, "200.000").
% 0.48/0.80 % set(auto2) -> assign(max_hours, 1).
% 0.48/0.80 % assign(max_hours, 1) -> assign(max_seconds, 3600).
% 0.48/0.80 % set(auto2) -> assign(max_seconds, 0).
% 0.48/0.80 % set(auto2) -> assign(max_minutes, 5).
% 0.48/0.80 % assign(max_minutes, 5) -> assign(max_seconds, 300).
% 0.48/0.80 % set(auto2) -> set(sort_initial_sos).
% 0.48/0.80 % set(auto2) -> assign(sos_limit, -1).
% 0.48/0.80 % set(auto2) -> assign(lrs_ticks, 3000).
% 0.48/0.80 % set(auto2) -> assign(max_megs, 400).
% 0.48/0.80 % set(auto2) -> assign(stats, some).
% 0.48/0.80 % set(auto2) -> clear(echo_input).
% 0.48/0.80 % set(auto2) -> set(quiet).
% 0.48/0.80 % set(auto2) -> clear(print_initial_clauses).
% 0.48/0.80 % set(auto2) -> clear(print_given).
% 0.48/0.80 assign(lrs_ticks,-1).
% 0.48/0.80 assign(sos_limit,10000).
% 0.48/0.80 assign(order,kbo).
% 0.48/0.80 set(lex_order_vars).
% 0.48/0.80 clear(print_given).
% 0.48/0.80
% 0.48/0.80 % formulas(sos). % not echoed (32 formulas)
% 0.48/0.80
% 0.48/0.80 ============================== end of input ==========================
% 0.48/0.80
% 0.48/0.80 % From the command line: assign(max_seconds, 300).
% 0.48/0.80
% 0.48/0.80 ============================== PROCESS NON-CLAUSAL FORMULAS ==========
% 0.48/0.80
% 0.48/0.80 % Formulas that are not ordinary clauses:
% 0.48/0.80 1 (all A all L (apart_point_and_line(A,L) <-> left_apart_point(A,L) | left_apart_point(A,reverse_line(L)))) # label(apt_def) # label(axiom) # label(non_clause). [assumption].
% 0.48/0.80 2 (all L all M (convergent_lines(L,M) <-> unequally_directed_lines(L,M) & unequally_directed_lines(L,reverse_line(M)))) # label(con_def) # label(axiom) # label(non_clause). [assumption].
% 0.48/0.80 3 (all A all B all L (divides_points(L,A,B) <-> left_apart_point(A,L) & left_apart_point(B,reverse_line(L)) | left_apart_point(A,reverse_line(L)) & left_apart_point(B,L))) # label(div_def) # label(axiom) # label(non_clause). [assumption].
% 0.48/0.80 4 (all L all A all B (before_on_line(L,A,B) <-> distinct_points(A,B) & -(left_apart_point(A,L) | left_apart_point(A,reverse_line(L))) & -(left_apart_point(B,L) | left_apart_point(B,reverse_line(L))) & -unequally_directed_lines(L,line_connecting(A,B)))) # label(bf_def) # label(axiom) # label(non_clause). [assumption].
% 0.48/0.80 5 (all L all A all B all C (between_on_line(L,A,B,C) <-> before_on_line(L,A,B) & before_on_line(L,B,C) | before_on_line(L,C,B) & before_on_line(L,B,A))) # label(bet_def) # label(axiom) # label(non_clause). [assumption].
% 0.48/0.80 6 (all A -distinct_points(A,A)) # label(oag1) # label(axiom) # label(non_clause). [assumption].
% 0.48/0.80 7 (all A all B all C (distinct_points(A,B) -> distinct_points(A,C) | distinct_points(B,C))) # label(oag2) # label(axiom) # label(non_clause). [assumption].
% 0.48/0.80 8 (all L -distinct_lines(L,L)) # label(oag3) # label(axiom) # label(non_clause). [assumption].
% 0.48/0.80 9 (all L all M all N (distinct_lines(L,M) -> distinct_lines(L,N) | distinct_lines(M,N))) # label(oag4) # label(axiom) # label(non_clause). [assumption].
% 0.48/0.80 10 (all L -unequally_directed_lines(L,L)) # label(oag5) # label(axiom) # label(non_clause). [assumption].
% 0.48/0.80 11 (all L all M all N (unequally_directed_lines(L,M) -> unequally_directed_lines(L,N) | unequally_directed_lines(M,N))) # label(oag6) # label(axiom) # label(non_clause). [assumption].
% 0.48/0.80 12 (all L all M all N (unequally_directed_lines(L,M) & unequally_directed_lines(L,reverse_line(M)) -> unequally_directed_lines(L,N) & unequally_directed_lines(L,reverse_line(N)) | unequally_directed_lines(M,N) & unequally_directed_lines(M,reverse_line(N)))) # label(oag7) # label(axiom) # label(non_clause). [assumption].
% 0.48/0.80 13 (all L all M (line(L) & line(M) -> unequally_directed_lines(L,M) | unequally_directed_lines(L,reverse_line(M)))) # label(oag8) # label(axiom) # label(non_clause). [assumption].
% 0.48/0.80 14 (all L all M (unequally_directed_lines(L,M) & unequally_directed_lines(L,reverse_line(M)) -> left_convergent_lines(L,M) | left_convergent_lines(L,reverse_line(M)))) # label(oag9) # label(axiom) # label(non_clause). [assumption].
% 0.48/0.80 15 (all A all L -(left_apart_point(A,L) | left_apart_point(A,reverse_line(L)))) # label(oag10) # label(axiom) # label(non_clause). [assumption].
% 0.48/0.80 16 (all L all M -(left_convergent_lines(L,M) | left_convergent_lines(L,reverse_line(M)))) # label(oag11) # label(axiom) # label(non_clause). [assumption].
% 0.48/0.80 17 (all A all B (point(A) & point(B) & distinct_points(A,B) -> line(line_connecting(A,B)))) # label(oagco1) # label(axiom) # label(non_clause). [assumption].
% 0.48/0.80 18 (all L all M (line(L) & line(M) & unequally_directed_lines(L,M) & unequally_directed_lines(L,reverse_line(M)) -> point(intersection_point(L,M)))) # label(oagco2) # label(axiom) # label(non_clause). [assumption].
% 0.48/0.80 19 (all L all A (point(A) & line(L) -> line(parallel_through_point(L,A)))) # label(oagco3) # label(axiom) # label(non_clause). [assumption].
% 0.48/0.80 20 (all L (line(L) -> line(reverse_line(L)))) # label(oagco4) # label(axiom) # label(non_clause). [assumption].
% 0.48/0.80 21 (all A all B (distinct_points(A,B) -> -apart_point_and_line(A,line_connecting(A,B)) & -apart_point_and_line(B,line_connecting(A,B)))) # label(oagco5) # label(axiom) # label(non_clause). [assumption].
% 0.48/0.80 22 (all L all M (unequally_directed_lines(L,M) & unequally_directed_lines(L,reverse_line(M)) -> -apart_point_and_line(intersection_point(L,M),L) & -apart_point_and_line(intersection_point(L,M),M))) # label(oagco6) # label(axiom) # label(non_clause). [assumption].
% 0.48/0.80 23 (all A all L -apart_point_and_line(A,parallel_through_point(L,A))) # label(oagco7) # label(axiom) # label(non_clause). [assumption].
% 0.48/0.80 24 (all L -distinct_lines(L,reverse_line(L))) # label(oagco8) # label(axiom) # label(non_clause). [assumption].
% 0.48/0.80 25 (all A all B -unequally_directed_lines(line_connecting(A,B),reverse_line(line_connecting(B,A)))) # label(oagco9) # label(axiom) # label(non_clause). [assumption].
% 0.48/0.80 26 (all A all L -unequally_directed_lines(parallel_through_point(L,A),L)) # label(oagco10) # label(axiom) # label(non_clause). [assumption].
% 0.48/0.80 27 (all A all B all L all M (distinct_points(A,B) & distinct_lines(L,M) -> left_apart_point(A,L) | left_apart_point(B,L) | left_apart_point(A,M) | left_apart_point(B,M) | left_apart_point(A,reverse_line(L)) | left_apart_point(B,reverse_line(L)) | left_apart_point(A,reverse_line(M)) | left_apart_point(B,reverse_line(M)))) # label(oaguc1) # label(axiom) # label(non_clause). [assumption].
% 0.48/0.80 28 (all A all B all L (distinct_points(A,B) & left_apart_point(A,L) -> left_apart_point(B,L) | left_convergent_lines(line_connecting(A,B),L))) # label(oaguc2) # label(axiom) # label(non_clause). [assumption].
% 0.48/0.80 29 (all A all B all L (left_apart_point(A,L) -> distinct_points(A,B) | left_apart_point(B,L))) # label(oagsub1) # label(axiom) # label(non_clause). [assumption].
% 0.48/0.80 30 (all A all L all M (left_apart_point(A,L) & unequally_directed_lines(L,M) -> distinct_lines(L,M) | left_apart_point(A,reverse_line(M)))) # label(oagsub2) # label(axiom) # label(non_clause). [assumption].
% 0.48/0.80 31 (all L all M all N (left_convergent_lines(L,M) -> unequally_directed_lines(M,N) | left_convergent_lines(L,N))) # label(oagsub3) # label(axiom) # label(non_clause). [assumption].
% 0.48/0.80 32 -(all L -unequally_directed_lines(reverse_line(reverse_line(L)),L)) # label(con) # label(negated_conjecture) # label(non_clause). [assumption].
% 0.48/0.80
% 0.48/0.80 ============================== end of process non-clausal formulas ===
% 0.48/0.80
% 0.48/0.80 ============================== PROCESS INITIAL CLAUSES ===============
% 0.48/0.80
% 0.48/0.80 ============================== PREDICATE ELIMINATION =================
% 0.48/0.80 33 apart_point_and_line(A,B) | -left_apart_point(A,B) # label(apt_def) # label(axiom). [clausify(1)].
% 0.48/0.80 34 -apart_point_and_line(A,parallel_through_point(B,A)) # label(oagco7) # label(axiom). [clausify(23)].
% 0.48/0.80 35 -distinct_points(A,B) | -apart_point_and_line(A,line_connecting(A,B)) # label(oagco5) # label(axiom). [clausify(21)].
% 0.48/0.80 36 -distinct_points(A,B) | -apart_point_and_line(B,line_connecting(A,B)) # label(oagco5) # label(axiom). [clausify(21)].
% 0.48/0.80 37 -unequally_directed_lines(A,B) | -unequally_directed_lines(A,reverse_line(B)) | -apart_point_and_line(intersection_point(A,B),A) # label(oagco6) # label(axiom). [clausify(22)].
% 0.48/0.80 38 -unequally_directed_lines(A,B) | -unequally_directed_lines(A,reverse_line(B)) | -apart_point_and_line(intersection_point(A,B),B) # label(oagco6) # label(axiom). [clausify(22)].
% 0.48/0.80 Derived: -left_apart_point(A,parallel_through_point(B,A)). [resolve(33,a,34,a)].
% 0.48/0.80 Derived: -left_apart_point(A,line_connecting(A,B)) | -distinct_points(A,B). [resolve(33,a,35,b)].
% 0.48/0.80 Derived: -left_apart_point(A,line_connecting(B,A)) | -distinct_points(B,A). [resolve(33,a,36,b)].
% 0.48/0.80 Derived: -left_apart_point(intersection_point(A,B),A) | -unequally_directed_lines(A,B) | -unequally_directed_lines(A,reverse_line(B)). [resolve(33,a,37,c)].
% 0.48/0.80 Derived: -left_apart_point(intersection_point(A,B),B) | -unequally_directed_lines(A,B) | -unequally_directed_lines(A,reverse_line(B)). [resolve(33,a,38,c)].
% 0.48/0.80 39 apart_point_and_line(A,B) | -left_apart_point(A,reverse_line(B)) # label(apt_def) # label(axiom). [clausify(1)].
% 0.48/0.80 Derived: -left_apart_point(A,reverse_line(parallel_through_point(B,A))). [resolve(39,a,34,a)].
% 0.48/0.80 Derived: -left_apart_point(A,reverse_line(line_connecting(A,B))) | -distinct_points(A,B). [resolve(39,a,35,b)].
% 0.48/0.80 Derived: -left_apart_point(A,reverse_line(line_connecting(B,A))) | -distinct_points(B,A). [resolve(39,a,36,b)].
% 0.48/0.80 Derived: -left_apart_point(intersection_point(A,B),reverse_line(A)) | -unequally_directed_lines(A,B) | -unequally_directed_lines(A,reverse_line(B)). [resolve(39,a,37,c)].
% 0.48/0.80 Derived: -left_apart_point(intersection_point(A,B),reverse_line(B)) | -unequally_directed_lines(A,B) | -unequally_directed_lines(A,reverse_line(B)). [resolve(39,a,38,c)].
% 0.48/0.80 40 -apart_point_and_line(A,B) | left_apart_point(A,B) | left_apart_point(A,reverse_line(B)) # label(apt_def) # label(axiom). [clausify(1)].
% 0.48/0.80 41 convergent_lines(A,B) | -unequally_directed_lines(A,B) | -unequally_directed_lines(A,reverse_line(B)) # label(con_def) # label(axiom). [clausify(2)].
% 0.48/0.80 42 -convergent_lines(A,B) | unequally_directed_lines(A,B) # label(con_def) # label(axiom). [clausify(2)].
% 0.48/0.80 43 -convergent_lines(A,B) | unequally_directed_lines(A,reverse_line(B)) # label(con_def) # label(axiom). [clausify(2)].
% 0.48/0.80 44 divides_points(A,B,C) | -left_apart_point(B,A) | -left_apart_point(C,reverse_line(A)) # label(div_def) # label(axiom). [clausify(3)].
% 0.48/0.80 45 -divides_points(A,B,C) | left_apart_point(B,A) | left_apart_point(C,A) # label(div_def) # label(axiom). [clausify(3)].
% 0.48/0.80 46 -divides_points(A,B,C) | left_apart_point(B,A) | left_apart_point(B,reverse_line(A)) # label(div_def) # label(axiom). [clausify(3)].
% 0.48/0.80 47 -divides_points(A,B,C) | left_apart_point(C,reverse_line(A)) | left_apart_point(C,A) # label(div_def) # label(axiom). [clausify(3)].
% 0.48/0.80 48 divides_points(A,B,C) | -left_apart_point(B,reverse_line(A)) | -left_apart_point(C,A) # label(div_def) # label(axiom). [clausify(3)].
% 0.48/0.80 49 -divides_points(A,B,C) | left_apart_point(C,reverse_line(A)) | left_apart_point(B,reverse_line(A)) # label(div_def) # label(axiom). [clausify(3)].
% 0.48/0.80 50 between_on_line(A,B,C,D) | -before_on_line(A,B,C) | -before_on_line(A,C,D) # label(bet_def) # label(axiom). [clausify(5)].
% 0.48/0.80 51 -between_on_line(A,B,C,D) | before_on_line(A,B,C) | before_on_line(A,D,C) # label(bet_def) # label(axiom). [clausify(5)].
% 0.48/0.80 52 -between_on_line(A,B,C,D) | before_on_line(A,B,C) | before_on_line(A,C,B) # label(bet_def) # label(axiom). [clausify(5)].
% 0.48/0.80 53 -between_on_line(A,B,C,D) | before_on_line(A,C,D) | before_on_line(A,D,C) # label(bet_def) # label(axiom). [clausify(5)].
% 0.48/0.80 54 -between_on_line(A,B,C,D) | before_on_line(A,C,D) | before_on_line(A,C,B) # label(bet_def) # label(axiom). [clausify(5)].
% 0.48/0.80 55 between_on_line(A,B,C,D) | -before_on_line(A,D,C) | -before_on_line(A,C,B) # label(bet_def) # label(axiom). [clausify(5)].
% 0.48/0.80 56 before_on_line(A,B,C) | -distinct_points(B,C) | left_apart_point(B,A) | left_apart_point(B,reverse_line(A)) | left_apart_point(C,A) | left_apart_point(C,reverse_line(A)) | unequally_directed_lines(A,line_connecting(B,C)) # label(bf_def) # label(axiom). [clausify(4)].
% 0.48/0.80 57 -before_on_line(A,B,C) | -left_apart_point(B,A) # label(bf_def) # label(axiom). [clausify(4)].
% 0.48/0.80 58 -before_on_line(A,B,C) | -left_apart_point(C,A) # label(bf_def) # label(axiom). [clausify(4)].
% 0.48/0.80 59 -before_on_line(A,B,C) | -left_apart_point(B,reverse_line(A)) # label(bf_def) # label(axiom). [clausify(4)].
% 0.48/0.80 60 -before_on_line(A,B,C) | -left_apart_point(C,reverse_line(A)) # label(bf_def) # label(axiom). [clausify(4)].
% 0.48/0.80 61 -before_on_line(A,B,C) | -unequally_directed_lines(A,line_connecting(B,C)) # label(bf_def) # label(axiom). [clausify(4)].
% 0.48/0.80 62 -before_on_line(A,B,C) | distinct_points(B,C) # label(bf_def) # label(axiom). [clausify(4)].
% 0.48/0.80
% 0.48/0.80 ============================== end predicate elimination =============
% 0.48/0.80
% 0.48/0.80 Auto_denials: (non-Horn, no changes).
% 0.48/0.80
% 0.48/0.80 Term ordering decisions:
% 0.48/0.80
% 0.48/0.80 % Assigning unary symbol reverse_line kb_weight 0 and highest precedence (12).
% 0.48/0.80 Function symbol KB weights: c1=1. line_connecting=1. intersection_point=1. parallel_through_point=1. reverse_line=0.
% 0.48/0.80
% 0.48/0.80 ============================== end of process initial clauses ========
% 0.48/0.80
% 0.48/0.80 ============================== CLAUSES FOR SEARCH ====================
% 0.48/0.80
% 0.48/0.80 ============================== end of clauses for search =============
% 0.48/0.80
% 0.48/0.80 ============================== SEARCH ================================
% 0.48/0.80
% 0.48/0.80 % Starting search at 0.02 seconds.
% 0.48/0.80
% 0.48/0.80 ============================== PROOF =================================
% 0.48/0.80 % SZS status Theorem
% 0.48/0.80 % SZS output start Refutation
% 0.48/0.80
% 0.48/0.80 % Proof 1 at 0.02 (+ 0.00) seconds.
% 0.48/0.80 % Length of proof is 16.
% 0.48/0.80 % Level of proof is 5.
% 0.48/0.80 % Maximum clause weight is 9.000.
% 0.48/0.80 % Given clauses 28.
% 0.48/0.80
% 0.48/0.80 10 (all L -unequally_directed_lines(L,L)) # label(oag5) # label(axiom) # label(non_clause). [assumption].
% 0.48/0.80 11 (all L all M all N (unequally_directed_lines(L,M) -> unequally_directed_lines(L,N) | unequally_directed_lines(M,N))) # label(oag6) # label(axiom) # label(non_clause). [assumption].
% 0.48/0.80 14 (all L all M (unequally_directed_lines(L,M) & unequally_directed_lines(L,reverse_line(M)) -> left_convergent_lines(L,M) | left_convergent_lines(L,reverse_line(M)))) # label(oag9) # label(axiom) # label(non_clause). [assumption].
% 0.48/0.80 16 (all L all M -(left_convergent_lines(L,M) | left_convergent_lines(L,reverse_line(M)))) # label(oag11) # label(axiom) # label(non_clause). [assumption].
% 0.48/0.80 32 -(all L -unequally_directed_lines(reverse_line(reverse_line(L)),L)) # label(con) # label(negated_conjecture) # label(non_clause). [assumption].
% 0.48/0.80 63 unequally_directed_lines(reverse_line(reverse_line(c1)),c1) # label(con) # label(negated_conjecture). [clausify(32)].
% 0.48/0.80 66 -unequally_directed_lines(A,A) # label(oag5) # label(axiom). [clausify(10)].
% 0.48/0.80 68 -left_convergent_lines(A,B) # label(oag11) # label(axiom). [clausify(16)].
% 0.48/0.80 76 -unequally_directed_lines(A,B) | unequally_directed_lines(A,C) | unequally_directed_lines(B,C) # label(oag6) # label(axiom). [clausify(11)].
% 0.48/0.80 84 -unequally_directed_lines(A,B) | -unequally_directed_lines(A,reverse_line(B)) | left_convergent_lines(A,B) | left_convergent_lines(A,reverse_line(B)) # label(oag9) # label(axiom). [clausify(14)].
% 0.48/0.80 85 -unequally_directed_lines(A,B) | -unequally_directed_lines(A,reverse_line(B)). [copy(84),unit_del(c,68),unit_del(d,68)].
% 0.48/0.80 91 unequally_directed_lines(reverse_line(reverse_line(c1)),A) | unequally_directed_lines(c1,A). [resolve(76,a,63,a)].
% 0.48/0.80 108 unequally_directed_lines(c1,reverse_line(A)) | -unequally_directed_lines(reverse_line(reverse_line(c1)),A). [resolve(91,a,85,b)].
% 0.48/0.80 110 unequally_directed_lines(c1,reverse_line(reverse_line(c1))). [resolve(91,a,66,a)].
% 0.48/0.80 111 -unequally_directed_lines(c1,reverse_line(c1)). [resolve(110,a,85,b)].
% 0.48/0.80 116 $F. [resolve(108,b,63,a),unit_del(a,111)].
% 0.48/0.80
% 0.48/0.80 % SZS output end Refutation
% 0.48/0.80 ============================== end of proof ==========================
% 0.48/0.80
% 0.48/0.80 ============================== STATISTICS ============================
% 0.48/0.80
% 0.48/0.80 Given=28. Generated=105. Kept=47. proofs=1.
% 0.48/0.80 Usable=28. Sos=16. Demods=0. Limbo=1, Disabled=71. Hints=0.
% 0.48/0.80 Megabytes=0.12.
% 0.48/0.80 User_CPU=0.02, System_CPU=0.00, Wall_clock=0.
% 0.48/0.80
% 0.48/0.80 ============================== end of statistics =====================
% 0.48/0.80
% 0.48/0.80 ============================== end of search =========================
% 0.48/0.80
% 0.48/0.80 THEOREM PROVED
% 0.48/0.80 % SZS status Theorem
% 0.48/0.80
% 0.48/0.80 Exiting with 1 proof.
% 0.48/0.80
% 0.48/0.80 Process 13381 exit (max_proofs) Sat Jun 18 13:36:32 2022
% 0.48/0.81 Prover9 interrupted
%------------------------------------------------------------------------------