TSTP Solution File: SYN417+1 by Prover9---1109a

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Prover9---1109a
% Problem  : SYN417+1 : TPTP v8.1.0. Released v2.0.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : tptp2X_and_run_prover9 %d %s

% Computer : n024.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 : Thu Jul 21 11:19:03 EDT 2022

% Result   : Theorem 0.90s 1.17s
% Output   : Refutation 0.90s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.06/0.11  % Problem  : SYN417+1 : TPTP v8.1.0. Released v2.0.0.
% 0.06/0.12  % Command  : tptp2X_and_run_prover9 %d %s
% 0.13/0.33  % Computer : n024.cluster.edu
% 0.13/0.33  % Model    : x86_64 x86_64
% 0.13/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.33  % Memory   : 8042.1875MB
% 0.13/0.33  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.33  % CPULimit : 300
% 0.13/0.33  % WCLimit  : 600
% 0.13/0.33  % DateTime : Tue Jul 12 02:44:43 EDT 2022
% 0.13/0.33  % CPUTime  : 
% 0.90/1.17  ============================== Prover9 ===============================
% 0.90/1.17  Prover9 (32) version 2009-11A, November 2009.
% 0.90/1.17  Process 15969 was started by sandbox2 on n024.cluster.edu,
% 0.90/1.17  Tue Jul 12 02:44:44 2022
% 0.90/1.17  The command was "/export/starexec/sandbox2/solver/bin/prover9 -t 300 -f /tmp/Prover9_15812_n024.cluster.edu".
% 0.90/1.17  ============================== end of head ===========================
% 0.90/1.17  
% 0.90/1.17  ============================== INPUT =================================
% 0.90/1.17  
% 0.90/1.17  % Reading from file /tmp/Prover9_15812_n024.cluster.edu
% 0.90/1.17  
% 0.90/1.17  set(prolog_style_variables).
% 0.90/1.17  set(auto2).
% 0.90/1.17      % set(auto2) -> set(auto).
% 0.90/1.17      % set(auto) -> set(auto_inference).
% 0.90/1.17      % set(auto) -> set(auto_setup).
% 0.90/1.17      % set(auto_setup) -> set(predicate_elim).
% 0.90/1.17      % set(auto_setup) -> assign(eq_defs, unfold).
% 0.90/1.17      % set(auto) -> set(auto_limits).
% 0.90/1.17      % set(auto_limits) -> assign(max_weight, "100.000").
% 0.90/1.17      % set(auto_limits) -> assign(sos_limit, 20000).
% 0.90/1.17      % set(auto) -> set(auto_denials).
% 0.90/1.17      % set(auto) -> set(auto_process).
% 0.90/1.17      % set(auto2) -> assign(new_constants, 1).
% 0.90/1.17      % set(auto2) -> assign(fold_denial_max, 3).
% 0.90/1.17      % set(auto2) -> assign(max_weight, "200.000").
% 0.90/1.17      % set(auto2) -> assign(max_hours, 1).
% 0.90/1.17      % assign(max_hours, 1) -> assign(max_seconds, 3600).
% 0.90/1.17      % set(auto2) -> assign(max_seconds, 0).
% 0.90/1.17      % set(auto2) -> assign(max_minutes, 5).
% 0.90/1.17      % assign(max_minutes, 5) -> assign(max_seconds, 300).
% 0.90/1.17      % set(auto2) -> set(sort_initial_sos).
% 0.90/1.17      % set(auto2) -> assign(sos_limit, -1).
% 0.90/1.17      % set(auto2) -> assign(lrs_ticks, 3000).
% 0.90/1.17      % set(auto2) -> assign(max_megs, 400).
% 0.90/1.17      % set(auto2) -> assign(stats, some).
% 0.90/1.17      % set(auto2) -> clear(echo_input).
% 0.90/1.17      % set(auto2) -> set(quiet).
% 0.90/1.17      % set(auto2) -> clear(print_initial_clauses).
% 0.90/1.17      % set(auto2) -> clear(print_given).
% 0.90/1.17  assign(lrs_ticks,-1).
% 0.90/1.17  assign(sos_limit,10000).
% 0.90/1.17  assign(order,kbo).
% 0.90/1.17  set(lex_order_vars).
% 0.90/1.17  clear(print_given).
% 0.90/1.17  
% 0.90/1.17  % formulas(sos).  % not echoed (1 formulas)
% 0.90/1.17  
% 0.90/1.17  ============================== end of input ==========================
% 0.90/1.17  
% 0.90/1.17  % From the command line: assign(max_seconds, 300).
% 0.90/1.17  
% 0.90/1.17  ============================== PROCESS NON-CLAUSAL FORMULAS ==========
% 0.90/1.17  
% 0.90/1.17  % Formulas that are not ordinary clauses:
% 0.90/1.17  1 -((exists X (X = f(g(X)) & (all Y (Y = f(g(Y)) -> X = Y)))) <-> (exists X (X = g(f(X)) & (all Y (Y = g(f(Y)) -> X = Y))))) # label(cute) # label(negated_conjecture) # label(non_clause).  [assumption].
% 0.90/1.17  
% 0.90/1.17  ============================== end of process non-clausal formulas ===
% 0.90/1.17  
% 0.90/1.17  ============================== PROCESS INITIAL CLAUSES ===============
% 0.90/1.17  
% 0.90/1.17  ============================== PREDICATE ELIMINATION =================
% 0.90/1.17  
% 0.90/1.17  ============================== end predicate elimination =============
% 0.90/1.17  
% 0.90/1.17  Auto_denials:  (non-Horn, no changes).
% 0.90/1.17  
% 0.90/1.17  Term ordering decisions:
% 0.90/1.17  Function symbol KB weights:  c1=1. c2=1. f=1. g=1. f1=1. f2=1.
% 0.90/1.17  
% 0.90/1.17  ============================== end of process initial clauses ========
% 0.90/1.17  
% 0.90/1.17  ============================== CLAUSES FOR SEARCH ====================
% 0.90/1.17  
% 0.90/1.17  ============================== end of clauses for search =============
% 0.90/1.17  
% 0.90/1.17  ============================== SEARCH ================================
% 0.90/1.17  
% 0.90/1.17  % Starting search at 0.01 seconds.
% 0.90/1.17  
% 0.90/1.17  ============================== PROOF =================================
% 0.90/1.17  % SZS status Theorem
% 0.90/1.17  % SZS output start Refutation
% 0.90/1.17  
% 0.90/1.17  % Proof 1 at 0.21 (+ 0.01) seconds.
% 0.90/1.17  % Length of proof is 139.
% 0.90/1.17  % Level of proof is 58.
% 0.90/1.17  % Maximum clause weight is 27.000.
% 0.90/1.17  % Given clauses 322.
% 0.90/1.17  
% 0.90/1.17  1 -((exists X (X = f(g(X)) & (all Y (Y = f(g(Y)) -> X = Y)))) <-> (exists X (X = g(f(X)) & (all Y (Y = g(f(Y)) -> X = Y))))) # label(cute) # label(negated_conjecture) # label(non_clause).  [assumption].
% 0.90/1.17  2 f(g(c1)) = c1 | g(f(c2)) = c2 # label(cute) # label(negated_conjecture).  [clausify(1)].
% 0.90/1.17  3 f(g(A)) != A | f1(A) != A | g(f(B)) != B | f2(B) != B # label(cute) # label(negated_conjecture).  [clausify(1)].
% 0.90/1.17  4 f(g(c1)) = c1 | g(f(A)) != A | A = c2 # label(cute) # label(negated_conjecture).  [clausify(1)].
% 0.90/1.17  5 f(g(c1)) = c1 | g(f(A)) != A | c2 = A.  [copy(4),flip(c)].
% 0.90/1.17  6 f(g(A)) != A | A = c1 | g(f(c2)) = c2 # label(cute) # label(negated_conjecture).  [clausify(1)].
% 0.90/1.17  7 f(g(A)) != A | c1 = A | g(f(c2)) = c2.  [copy(6),flip(b)].
% 0.90/1.17  8 f(g(A)) != A | A = c1 | g(f(B)) != B | B = c2 # label(cute) # label(negated_conjecture).  [clausify(1)].
% 0.90/1.17  9 f(g(A)) != A | c1 = A | g(f(B)) != B | c2 = B.  [copy(8),flip(b),flip(d)].
% 0.90/1.17  10 f(g(A)) != A | f(g(f1(A))) = f1(A) | g(f(B)) != B | f2(B) != B # label(cute) # label(negated_conjecture).  [clausify(1)].
% 0.90/1.17  11 f(g(A)) != A | f1(A) != A | g(f(B)) != B | g(f(f2(B))) = f2(B) # label(cute) # label(negated_conjecture).  [clausify(1)].
% 0.90/1.17  12 f(g(A)) != A | f(g(f1(A))) = f1(A) | g(f(B)) != B | g(f(f2(B))) = f2(B) # label(cute) # label(negated_conjecture).  [clausify(1)].
% 0.90/1.17  13 f(g(A)) != A | f1(A) != A | f2(c2) != c2 | f(g(c1)) = c1.  [resolve(3,c,2,b)].
% 0.90/1.17  14 f(g(c1)) = c1 | f1(f(c2)) != f(c2) | g(f(A)) != A | f2(A) != A.  [para(2(b,1),3(a,1,1)),xx(b)].
% 0.90/1.17  15 f(g(A)) != A | f(g(f1(A))) = f1(A) | f2(c2) != c2 | f(g(c1)) = c1.  [resolve(10,c,2,b)].
% 0.90/1.17  17 f(g(A)) != A | f1(A) != A | g(f(f2(c2))) = f2(c2) | f(g(c1)) = c1.  [resolve(11,c,2,b)].
% 0.90/1.17  19 f(g(A)) != A | f(g(f1(A))) = f1(A) | g(f(f2(c2))) = f2(c2) | f(g(c1)) = c1.  [resolve(12,c,2,b)].
% 0.90/1.17  21 f(g(c1)) = c1 | f1(f(c2)) != f(c2) | f2(c2) != c2.  [para(2(b,1),13(a,1,1)),xx(b),merge(d)].
% 0.90/1.17  22 f(g(c1)) = c1 | f(g(f1(f(c2)))) = f1(f(c2)) | f2(c2) != c2.  [para(2(b,1),15(a,1,1)),xx(b),merge(d)].
% 0.90/1.17  23 f(g(c1)) = c1 | f1(f(c2)) != f(c2) | g(f(f2(c2))) = f2(c2).  [para(2(b,1),17(a,1,1)),xx(b),merge(d)].
% 0.90/1.17  24 f(g(c1)) = c1 | f(g(f1(f(c2)))) = f1(f(c2)) | g(f(f2(c2))) = f2(c2).  [para(2(b,1),19(a,1,1)),xx(b),merge(d)].
% 0.90/1.17  25 f(g(c1)) = c1 | g(f(f2(c2))) = f2(c2) | f(g(f1(f1(f(c2))))) = f1(f1(f(c2))).  [resolve(24,b,19,a),merge(d),merge(e)].
% 0.90/1.17  27 f(g(c1)) = c1 | g(f(f2(c2))) = f2(c2) | g(f1(f(c2))) = c2.  [para(24(b,1),5(b,1,1)),flip(e),xx(d),merge(c)].
% 0.90/1.17  28 f(g(c1)) = c1 | g(f(f2(c2))) = f2(c2) | f1(f(c2)) = f(c2).  [para(27(c,1),24(b,1,1)),flip(d),merge(c),merge(e)].
% 0.90/1.17  35 f(g(c1)) = c1 | f1(f(c2)) = f(c2) | f2(c2) = c2.  [resolve(28,b,5,b),flip(d),merge(c)].
% 0.90/1.17  43 f(g(c1)) = c1 | f2(c2) = c2 | g(f(f2(c2))) = f2(c2).  [resolve(35,b,23,b),merge(c)].
% 0.90/1.17  46 f(g(c1)) = c1 | g(f(f2(c2))) = f2(c2) | f(g(f1(f1(f1(f(c2)))))) = f1(f1(f1(f(c2)))).  [resolve(25,c,19,a),merge(d),merge(e)].
% 0.90/1.17  47 f(g(c1)) = c1 | g(f(f2(c2))) = f2(c2) | f1(f1(f1(f(c2)))) != f1(f1(f(c2))).  [resolve(25,c,17,a),merge(d),merge(e)].
% 0.90/1.17  48 f(g(c1)) = c1 | g(f(f2(c2))) = f2(c2) | g(f1(f1(f(c2)))) = c2.  [para(25(c,1),5(b,1,1)),flip(e),xx(d),merge(c)].
% 0.90/1.17  57 f(g(c1)) = c1 | f2(c2) = c2.  [resolve(43,c,5,b),flip(d),merge(c),merge(d)].
% 0.90/1.17  58 f2(c2) = c2 | f(g(f1(c1))) = f1(c1) | g(f(A)) != A | g(f(f2(A))) = f2(A).  [resolve(57,a,12,a)].
% 0.90/1.17  59 f2(c2) = c2 | f1(c1) != c1 | g(f(A)) != A | g(f(f2(A))) = f2(A).  [resolve(57,a,11,a)].
% 0.90/1.17  60 f2(c2) = c2 | f(g(f1(c1))) = f1(c1) | g(f(A)) != A | f2(A) != A.  [resolve(57,a,10,a)].
% 0.90/1.17  61 f2(c2) = c2 | f1(c1) != c1 | g(f(A)) != A | f2(A) != A.  [resolve(57,a,3,a)].
% 0.90/1.17  63 f2(c2) = c2 | f(g(A)) != A | c1 = A | g(c1) = c2.  [para(57(a,1),9(c,1,1)),flip(e),xx(d)].
% 0.90/1.17  66 f2(c2) = c2 | f(g(A)) != A | f(g(f1(A))) = f1(A) | g(f(f2(g(c1)))) = f2(g(c1)).  [para(57(a,1),12(c,1,1)),xx(d)].
% 0.90/1.17  67 f2(c2) = c2 | f1(c1) != c1 | f2(g(c1)) != g(c1).  [para(57(a,1),61(c,1,1)),xx(d),merge(b)].
% 0.90/1.17  68 f(g(c1)) = c1 | g(f(f2(c2))) = f2(c2) | f1(f1(f(c2))) = f(c2).  [para(48(c,1),25(c,1,1)),flip(e),merge(c),merge(d)].
% 0.90/1.17  75 f2(c2) = c2 | f1(c1) != c1 | g(f(f2(g(c1)))) = f2(g(c1)).  [para(57(a,1),59(c,1,1)),xx(d),merge(b)].
% 0.90/1.17  76 f2(c2) = c2 | f(g(f1(c1))) = f1(c1) | f2(g(c1)) != g(c1).  [para(57(a,1),60(c,1,1)),xx(d),merge(b)].
% 0.90/1.17  106 f(g(c1)) = c1 | g(f(f2(c2))) = f2(c2) | f1(f1(f1(f(c2)))) != f(c2).  [para(68(c,1),47(c,2)),merge(c),merge(d)].
% 0.90/1.17  113 f2(c2) = c2 | f(g(f1(c1))) = f1(c1) | g(f(f2(g(c1)))) = f2(g(c1)).  [para(57(a,1),58(c,1,1)),xx(d),merge(b)].
% 0.90/1.17  118 f2(c2) = c2 | f(g(f1(c1))) = f1(c1) | g(f(f2(f2(g(c1))))) = f2(f2(g(c1))).  [resolve(113,c,58,c),merge(c),merge(d)].
% 0.90/1.17  120 f2(c2) = c2 | f(g(f1(c1))) = f1(c1) | f(f2(g(c1))) = c1 | g(f(c2)) = c2.  [para(113(c,1),7(a,1,1)),flip(d),xx(c)].
% 0.90/1.17  122 f2(c2) = c2 | f(g(f1(c1))) = f1(c1) | f(f2(g(c1))) = c1 | g(c1) = c2.  [para(113(c,1),63(b,1,1)),flip(e),xx(d),merge(c)].
% 0.90/1.17  123 f2(c2) = c2 | f(g(f1(c1))) = f1(c1) | g(c1) = c2 | f2(g(c1)) = g(c1).  [para(122(c,1),113(c,1,1)),flip(f),merge(d),merge(e)].
% 0.90/1.17  125 f2(c2) = c2 | g(c1) = c2 | f2(g(c1)) = g(c1) | f1(c1) = c1.  [resolve(123,b,63,b),flip(e),merge(d),merge(f)].
% 0.90/1.17  136 f2(c2) = c2 | g(c1) = c2 | f1(c1) = c1 | f(g(f1(c1))) = f1(c1).  [resolve(125,c,76,c),merge(d)].
% 0.90/1.17  141 f2(c2) = c2 | g(c1) = c2 | f1(c1) = c1.  [resolve(136,d,63,b),flip(e),merge(d),merge(e),merge(f)].
% 0.90/1.17  142 g(c1) = c2 | f1(c1) = c1 | f(g(c1)) = c1 | f(g(f1(f(c2)))) = f1(f(c2)).  [resolve(141,a,22,c)].
% 0.90/1.17  154 f2(c2) = c2 | f(g(f1(c1))) = f1(c1) | f2(f2(f2(g(c1)))) != f2(f2(g(c1))).  [resolve(118,c,60,c),merge(c),merge(d)].
% 0.90/1.17  156 f2(c2) = c2 | f(g(f1(c1))) = f1(c1) | g(f(f2(f2(f2(g(c1)))))) = f2(f2(f2(g(c1)))).  [resolve(118,c,58,c),merge(c),merge(d)].
% 0.90/1.17  161 f2(c2) = c2 | f(g(f1(c1))) = f1(c1) | g(f(c2)) = c2 | f2(g(c1)) = g(c1).  [para(120(c,1),113(c,1,1)),flip(f),merge(d),merge(e)].
% 0.90/1.17  173 g(c1) = c2 | f1(c1) = c1 | f(g(c1)) = c1 | g(f1(f(c2))) = c2.  [para(142(d,1),5(b,1,1)),flip(f),xx(e),merge(d)].
% 0.90/1.17  181 g(c1) = c2 | f1(c1) = c1 | f(g(c1)) = c1 | f1(f(c2)) = f(c2).  [para(173(d,1),142(d,1,1)),flip(g),merge(d),merge(e),merge(f)].
% 0.90/1.17  183 g(c1) = c2 | f1(c1) = c1 | f(g(c1)) = c1 | f2(c2) != c2.  [resolve(181,d,21,b),merge(d)].
% 0.90/1.17  188 g(c1) = c2 | f1(c1) = c1 | f(g(c1)) = c1.  [resolve(183,d,141,a),merge(d),merge(e)].
% 0.90/1.17  189 g(c1) = c2 | f1(c1) = c1 | f(g(f1(c1))) = f1(c1) | g(f(A)) != A | g(f(f2(A))) = f2(A).  [resolve(188,c,12,a)].
% 0.90/1.17  190 g(c1) = c2 | f1(c1) = c1 | f(g(f1(c1))) = f1(c1) | g(f(A)) != A | f2(A) != A.  [resolve(188,c,10,a)].
% 0.90/1.17  192 g(c1) = c2 | f1(c1) = c1 | f(g(A)) != A | c1 = A.  [para(188(c,1),9(c,1,1)),flip(f),xx(e),merge(e)].
% 0.90/1.17  202 f2(c2) = c2 | g(f(c2)) = c2 | f2(g(c1)) = g(c1) | f1(c1) = c1.  [resolve(161,b,7,a),flip(d),merge(e)].
% 0.90/1.17  210 f2(c2) = c2 | g(f(c2)) = c2 | f1(c1) = c1 | f(g(f1(c1))) = f1(c1).  [resolve(202,c,76,c),merge(d)].
% 0.90/1.17  220 f2(c2) = c2 | g(f(c2)) = c2 | f1(c1) = c1.  [resolve(210,d,7,a),flip(d),merge(d),merge(e)].
% 0.90/1.17  221 f2(c2) = c2 | f1(c1) = c1 | f(g(f1(c1))) = f1(c1) | g(f(f2(c2))) = f2(c2).  [resolve(220,b,58,c),merge(c)].
% 0.90/1.17  223 f2(c2) = c2 | f1(c1) = c1 | f(g(A)) != A | f1(A) != A | g(f(f2(c2))) = f2(c2).  [resolve(220,b,11,c)].
% 0.90/1.17  239 f(g(c1)) = c1 | g(f(f2(c2))) = f2(c2) | g(f1(f1(f1(f(c2))))) = c2.  [para(46(c,1),5(b,1,1)),flip(e),xx(d),merge(c)].
% 0.90/1.17  245 f(g(c1)) = c1 | g(f(f2(c2))) = f2(c2) | f1(f1(f1(f(c2)))) = f(c2).  [para(239(c,1),46(c,1,1)),flip(e),merge(c),merge(d)].
% 0.90/1.17  246 f(g(c1)) = c1 | g(f(f2(c2))) = f2(c2).  [resolve(245,c,106,c),merge(c),merge(d)].
% 0.90/1.17  250 f(g(c1)) = c1 | f1(f(c2)) != f(c2) | f2(f2(c2)) != f2(c2).  [resolve(246,b,14,c),merge(b)].
% 0.90/1.17  263 f2(c2) = c2 | f1(c1) = c1 | f(g(f1(f(c2)))) = f1(f(c2)) | g(f(f2(g(c1)))) = f2(g(c1)).  [para(220(b,1),66(b,1,1)),xx(d),merge(c)].
% 0.90/1.17  272 f2(c2) = c2 | f1(c1) = c1 | f(g(f1(c1))) = f1(c1) | f(g(A)) != A | c1 = A.  [resolve(221,d,9,c),flip(f),merge(f)].
% 0.90/1.17  466 f2(c2) = c2 | f(g(f1(c1))) = f1(c1) | f1(c1) = c1 | f(f2(f2(g(c1)))) = c1.  [para(118(c,1),272(d,1,1)),flip(g),xx(f),merge(c),merge(e)].
% 0.90/1.17  483 f2(c2) = c2 | f(g(f1(c1))) = f1(c1) | f1(c1) = c1 | f2(f2(g(c1))) = g(c1).  [para(466(d,1),118(c,1,1)),flip(f),merge(d),merge(e)].
% 0.90/1.17  486 f2(c2) = c2 | f(g(f1(c1))) = f1(c1) | f1(c1) = c1 | f2(f2(f2(g(c1)))) != g(c1).  [para(483(d,1),154(c,2)),merge(d),merge(e)].
% 0.90/1.17  531 f2(c2) = c2 | f(g(f1(c1))) = f1(c1) | f1(c1) = c1 | f(f2(f2(f2(g(c1))))) = c1.  [para(156(c,1),272(d,1,1)),flip(g),xx(f),merge(c),merge(e)].
% 0.90/1.17  547 f2(c2) = c2 | f(g(f1(c1))) = f1(c1) | f1(c1) = c1 | f2(f2(f2(g(c1)))) = g(c1).  [para(531(d,1),156(c,1,1)),flip(f),merge(d),merge(e)].
% 0.90/1.17  565 f2(c2) = c2 | f(g(f1(c1))) = f1(c1) | f1(c1) = c1.  [resolve(547,d,486,d),merge(d),merge(e),merge(f)].
% 0.90/1.17  573 f2(c2) = c2 | f1(c1) = c1 | g(f(A)) != A | c2 = A.  [resolve(565,b,9,a),flip(c),merge(c)].
% 0.90/1.17  583 g(c1) = c2 | f1(c1) = c1 | f(g(f1(c1))) = f1(c1) | g(f(f2(g(c1)))) = f2(g(c1)).  [para(188(c,1),189(d,1,1)),xx(f),merge(c),merge(d)].
% 0.90/1.17  585 g(c1) = c2 | f1(c1) = c1 | f(g(f1(c1))) = f1(c1) | f2(g(c1)) != g(c1).  [para(188(c,1),190(d,1,1)),xx(f),merge(c),merge(d)].
% 0.90/1.17  591 f2(c2) = c2 | f1(c1) = c1 | f1(f(c2)) != f(c2) | g(f(f2(c2))) = f2(c2).  [para(220(b,1),223(c,1,1)),xx(e),merge(c),merge(d)].
% 0.90/1.17  618 g(c1) = c2 | f1(c1) = c1 | f(g(f1(c1))) = f1(c1) | f(f2(g(c1))) = c1.  [para(583(d,1),192(c,1,1)),flip(g),xx(f),merge(d),merge(e)].
% 0.90/1.17  619 g(c1) = c2 | f1(c1) = c1 | f(g(f1(c1))) = f1(c1) | f2(g(c1)) = g(c1).  [para(618(d,1),583(d,1,1)),flip(g),merge(d),merge(e),merge(f)].
% 0.90/1.17  622 g(c1) = c2 | f1(c1) = c1 | f2(g(c1)) = g(c1).  [resolve(619,c,192,c),flip(f),merge(d),merge(e),merge(f)].
% 0.90/1.17  623 g(c1) = c2 | f1(c1) = c1 | f(g(f1(c1))) = f1(c1).  [resolve(622,c,585,d),merge(c),merge(d)].
% 0.90/1.17  629 g(c1) = c2 | f1(c1) = c1.  [resolve(623,c,192,c),flip(e),merge(c),merge(d),merge(e)].
% 0.90/1.17  631 g(c1) = c2 | f2(c2) = c2 | g(f(f2(g(c1)))) = f2(g(c1)).  [resolve(629,b,75,b)].
% 0.90/1.17  650 g(c1) = c2 | f2(c2) = c2 | f(f2(g(c1))) = c1.  [para(631(c,1),63(b,1,1)),flip(e),xx(d),merge(c),merge(e)].
% 0.90/1.17  653 g(c1) = c2 | f2(c2) = c2 | f2(g(c1)) = g(c1).  [para(650(c,1),631(c,1,1)),flip(e),merge(c),merge(d)].
% 0.90/1.17  656 g(c1) = c2 | f2(c2) = c2 | f1(c1) != c1.  [resolve(653,c,67,c),merge(c)].
% 0.90/1.17  661 g(c1) = c2 | f2(c2) = c2.  [resolve(656,c,629,b),merge(c)].
% 0.90/1.17  666 g(c1) = c2 | f(g(c1)) = c1 | f(g(f1(f(c2)))) = f1(f(c2)).  [resolve(661,b,22,c)].
% 0.90/1.17  669 g(c1) = c2 | f(g(c1)) = c1 | f1(f(c2)) != f(c2).  [para(661(b,1),250(c,1,1)),xx(d)].
% 0.90/1.17  691 g(c1) = c2 | f(g(c1)) = c1 | g(f1(f(c2))) = c2.  [para(666(c,1),5(b,1,1)),flip(e),xx(d),merge(c)].
% 0.90/1.17  693 g(c1) = c2 | f(g(c1)) = c1 | f1(f(c2)) = f(c2).  [para(691(c,1),666(c,1,1)),flip(e),merge(c),merge(d)].
% 0.90/1.17  694 g(c1) = c2 | f(g(c1)) = c1.  [resolve(693,c,669,c),merge(c),merge(d)].
% 0.90/1.17  696 g(c1) = c2 | f1(c1) != c1 | g(f(A)) != A | g(f(f2(A))) = f2(A).  [resolve(694,b,11,a)].
% 0.90/1.17  698 g(c1) = c2 | f1(c1) != c1 | g(f(A)) != A | f2(A) != A.  [resolve(694,b,3,a)].
% 0.90/1.17  700 g(c1) = c2 | f(g(A)) != A | c1 = A.  [para(694(b,1),9(c,1,1)),flip(e),xx(d),merge(d)].
% 0.90/1.17  705 g(c1) = c2 | f1(c1) != c1 | f2(g(c1)) != g(c1).  [para(694(b,1),698(c,1,1)),xx(d),merge(b)].
% 0.90/1.17  707 g(c1) = c2 | f1(c1) != c1 | g(f(f2(g(c1)))) = f2(g(c1)).  [para(694(b,1),696(c,1,1)),xx(d),merge(b)].
% 0.90/1.17  708 g(c1) = c2 | g(f(f2(g(c1)))) = f2(g(c1)).  [resolve(707,b,629,b),merge(c)].
% 0.90/1.17  721 g(c1) = c2 | f(f2(g(c1))) = c1.  [para(708(b,1),700(b,1,1)),flip(d),xx(c),merge(b)].
% 0.90/1.17  723 g(c1) = c2 | f2(g(c1)) = g(c1).  [para(721(b,1),708(b,1,1)),flip(c),merge(b)].
% 0.90/1.17  725 f2(c2) = c2 | f1(c1) = c1 | f(g(f1(f(c2)))) = f1(f(c2)) | f2(g(c1)) = c2.  [resolve(263,d,573,c),flip(f),merge(d),merge(e)].
% 0.90/1.17  728 g(c1) = c2 | f1(c1) != c1.  [resolve(723,b,705,c),merge(b)].
% 0.90/1.17  732 g(c1) = c2.  [resolve(728,b,629,b),merge(b)].
% 0.90/1.17  735 f2(c2) = c2 | f1(c1) = c1 | f(g(f1(f(c2)))) = f1(f(c2)).  [back_rewrite(725),rewrite([732(19)]),merge(d)].
% 0.90/1.17  807 f(c2) = c1 | f1(f(c2)) != f(c2) | f2(f2(c2)) != f2(c2).  [back_rewrite(250),rewrite([732(2)])].
% 0.90/1.17  815 f(c2) = c1 | f2(c2) = c2.  [back_rewrite(57),rewrite([732(2)])].
% 0.90/1.17  816 f(c2) = c1 | f(g(f1(f(c2)))) = f1(f(c2)) | f2(c2) != c2.  [back_rewrite(22),rewrite([732(2)])].
% 0.90/1.17  824 f(c2) = c1 | g(f(A)) != A | c2 = A.  [back_rewrite(5),rewrite([732(2)])].
% 0.90/1.17  826 f(c2) != c1 | f1(c1) != c1 | g(f(A)) != A | f2(A) != A.  [para(732(a,1),3(a,1,1))].
% 0.90/1.17  827 f(c2) != c1 | f(g(f1(c1))) = f1(c1) | g(f(A)) != A | f2(A) != A.  [para(732(a,1),10(a,1,1))].
% 0.90/1.17  828 f(c2) != c1 | f1(c1) != c1 | g(f(A)) != A | g(f(f2(A))) = f2(A).  [para(732(a,1),11(a,1,1))].
% 0.90/1.17  842 f2(c2) = c2 | f1(c1) = c1 | g(f1(f(c2))) = c2.  [para(735(c,1),573(c,1,1)),flip(f),xx(e),merge(c),merge(d)].
% 0.90/1.17  844 f2(c2) = c2 | f1(c1) = c1 | f1(f(c2)) = f(c2).  [para(842(c,1),735(c,1,1)),flip(e),merge(c),merge(d)].
% 0.90/1.17  846 f2(c2) = c2 | f1(c1) = c1 | g(f(f2(c2))) = f2(c2).  [resolve(844,c,591,c),merge(c),merge(d)].
% 0.90/1.17  852 f2(c2) = c2 | f1(c1) = c1.  [resolve(846,c,573,c),flip(e),merge(c),merge(d),merge(e)].
% 0.90/1.17  866 f(c2) = c1 | f1(f(c2)) != f(c2).  [para(815(b,1),807(c,1,1)),xx(d),merge(b)].
% 0.90/1.17  870 f(c2) = c1 | f(g(f1(f(c2)))) = f1(f(c2)).  [resolve(816,c,815,b),merge(c)].
% 0.90/1.17  880 f(c2) = c1 | g(f1(f(c2))) = c2.  [para(870(b,1),824(b,1,1)),flip(d),xx(c),merge(b)].
% 0.90/1.17  881 f(c2) = c1 | f1(f(c2)) = f(c2).  [para(880(b,1),870(b,1,1)),flip(c),merge(b)].
% 0.90/1.17  882 f(c2) = c1.  [resolve(881,b,866,b),merge(b)].
% 0.90/1.17  884 f1(c1) != c1 | g(f(A)) != A | g(f(f2(A))) = f2(A).  [back_rewrite(828),rewrite([882(2)]),xx(a)].
% 0.90/1.17  885 f(g(f1(c1))) = f1(c1) | g(f(A)) != A | f2(A) != A.  [back_rewrite(827),rewrite([882(2)]),xx(a)].
% 0.90/1.17  886 f1(c1) != c1 | g(f(A)) != A | f2(A) != A.  [back_rewrite(826),rewrite([882(2)]),xx(a)].
% 0.90/1.17  895 f1(c1) != c1 | f2(c2) != c2.  [para(882(a,1),886(b,1,1)),rewrite([732(6)]),xx(b)].
% 0.90/1.17  896 f1(c1) != c1 | g(f(f2(c2))) = f2(c2).  [para(882(a,1),884(b,1,1)),rewrite([732(6)]),xx(b)].
% 0.90/1.17  897 f(g(f1(c1))) = f1(c1) | f2(c2) != c2.  [para(882(a,1),885(b,1,1)),rewrite([732(9)]),xx(b)].
% 0.90/1.17  899 f(g(f1(c1))) = f1(c1) | f1(c1) = c1.  [resolve(897,b,852,a)].
% 0.90/1.17  904 f1(c1) = c1 | g(f(A)) != A | c2 = A.  [resolve(899,a,9,a),flip(b),merge(b)].
% 0.90/1.17  911 f1(c1) = c1 | g(f1(c1)) = c2.  [para(899(a,1),904(b,1,1)),flip(d),xx(c),merge(b)].
% 0.90/1.17  912 f1(c1) = c1.  [para(911(b,1),899(a,1,1)),rewrite([882(6)]),flip(b),merge(b),merge(c)].
% 0.90/1.17  913 g(f(f2(c2))) = f2(c2).  [back_rewrite(896),rewrite([912(2)]),xx(a)].
% 0.90/1.17  914 f2(c2) != c2.  [back_rewrite(895),rewrite([912(2)]),xx(a)].
% 0.90/1.17  918 f(g(A)) != A | c1 = A.  [resolve(913,a,9,c),flip(c),unit_del(c,914)].
% 0.90/1.17  920 f(f2(c2)) = c1.  [para(913(a,1),918(a,1,1)),flip(b),xx(a)].
% 0.90/1.17  921 $F.  [back_rewrite(913),rewrite([920(3),732(2)]),flip(a),unit_del(a,914)].
% 0.90/1.17  
% 0.90/1.17  % SZS output end Refutation
% 0.90/1.17  ============================== end of proof ==========================
% 0.90/1.17  
% 0.90/1.17  ============================== STATISTICS ============================
% 0.90/1.17  
% 0.90/1.17  Given=322. Generated=6580. Kept=916. proofs=1.
% 0.90/1.17  Usable=6. Sos=2. Demods=4. Limbo=1, Disabled=915. Hints=0.
% 0.90/1.17  Megabytes=0.83.
% 0.90/1.17  User_CPU=0.21, System_CPU=0.01, Wall_clock=0.
% 0.90/1.17  
% 0.90/1.17  ============================== end of statistics =====================
% 0.90/1.17  
% 0.90/1.17  ============================== end of search =========================
% 0.90/1.17  
% 0.90/1.17  THEOREM PROVED
% 0.90/1.17  % SZS status Theorem
% 0.90/1.17  
% 0.90/1.17  Exiting with 1 proof.
% 0.90/1.17  
% 0.90/1.17  Process 15969 exit (max_proofs) Tue Jul 12 02:44:44 2022
% 0.90/1.17  Prover9 interrupted
%------------------------------------------------------------------------------