TSTP Solution File: LAT394-2 by Prover9---1109a

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Prover9---1109a
% Problem  : LAT394-2 : TPTP v8.1.0. Released v5.4.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : tptp2X_and_run_prover9 %d %s

% Computer : n004.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 : Sun Jul 17 06:28:37 EDT 2022

% Result   : Unsatisfiable 1.73s 2.01s
% Output   : Refutation 1.73s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.11/0.12  % Problem  : LAT394-2 : TPTP v8.1.0. Released v5.4.0.
% 0.11/0.13  % Command  : tptp2X_and_run_prover9 %d %s
% 0.13/0.34  % Computer : n004.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  : 600
% 0.13/0.34  % DateTime : Wed Jun 29 20:07:38 EDT 2022
% 0.13/0.34  % CPUTime  : 
% 1.73/2.01  ============================== Prover9 ===============================
% 1.73/2.01  Prover9 (32) version 2009-11A, November 2009.
% 1.73/2.01  Process 1522 was started by sandbox2 on n004.cluster.edu,
% 1.73/2.01  Wed Jun 29 20:07:38 2022
% 1.73/2.01  The command was "/export/starexec/sandbox2/solver/bin/prover9 -t 300 -f /tmp/Prover9_1367_n004.cluster.edu".
% 1.73/2.01  ============================== end of head ===========================
% 1.73/2.01  
% 1.73/2.01  ============================== INPUT =================================
% 1.73/2.01  
% 1.73/2.01  % Reading from file /tmp/Prover9_1367_n004.cluster.edu
% 1.73/2.01  
% 1.73/2.01  set(prolog_style_variables).
% 1.73/2.01  set(auto2).
% 1.73/2.01      % set(auto2) -> set(auto).
% 1.73/2.01      % set(auto) -> set(auto_inference).
% 1.73/2.01      % set(auto) -> set(auto_setup).
% 1.73/2.01      % set(auto_setup) -> set(predicate_elim).
% 1.73/2.01      % set(auto_setup) -> assign(eq_defs, unfold).
% 1.73/2.01      % set(auto) -> set(auto_limits).
% 1.73/2.01      % set(auto_limits) -> assign(max_weight, "100.000").
% 1.73/2.01      % set(auto_limits) -> assign(sos_limit, 20000).
% 1.73/2.01      % set(auto) -> set(auto_denials).
% 1.73/2.01      % set(auto) -> set(auto_process).
% 1.73/2.01      % set(auto2) -> assign(new_constants, 1).
% 1.73/2.01      % set(auto2) -> assign(fold_denial_max, 3).
% 1.73/2.01      % set(auto2) -> assign(max_weight, "200.000").
% 1.73/2.01      % set(auto2) -> assign(max_hours, 1).
% 1.73/2.01      % assign(max_hours, 1) -> assign(max_seconds, 3600).
% 1.73/2.01      % set(auto2) -> assign(max_seconds, 0).
% 1.73/2.01      % set(auto2) -> assign(max_minutes, 5).
% 1.73/2.01      % assign(max_minutes, 5) -> assign(max_seconds, 300).
% 1.73/2.01      % set(auto2) -> set(sort_initial_sos).
% 1.73/2.01      % set(auto2) -> assign(sos_limit, -1).
% 1.73/2.01      % set(auto2) -> assign(lrs_ticks, 3000).
% 1.73/2.01      % set(auto2) -> assign(max_megs, 400).
% 1.73/2.01      % set(auto2) -> assign(stats, some).
% 1.73/2.01      % set(auto2) -> clear(echo_input).
% 1.73/2.01      % set(auto2) -> set(quiet).
% 1.73/2.01      % set(auto2) -> clear(print_initial_clauses).
% 1.73/2.01      % set(auto2) -> clear(print_given).
% 1.73/2.01  assign(lrs_ticks,-1).
% 1.73/2.01  assign(sos_limit,10000).
% 1.73/2.01  assign(order,kbo).
% 1.73/2.01  set(lex_order_vars).
% 1.73/2.01  clear(print_given).
% 1.73/2.01  
% 1.73/2.01  % formulas(sos).  % not echoed (2 formulas)
% 1.73/2.01  
% 1.73/2.01  ============================== end of input ==========================
% 1.73/2.01  
% 1.73/2.01  % From the command line: assign(max_seconds, 300).
% 1.73/2.01  
% 1.73/2.01  ============================== PROCESS NON-CLAUSAL FORMULAS ==========
% 1.73/2.01  
% 1.73/2.01  % Formulas that are not ordinary clauses:
% 1.73/2.01  
% 1.73/2.01  ============================== end of process non-clausal formulas ===
% 1.73/2.01  
% 1.73/2.01  ============================== PROCESS INITIAL CLAUSES ===============
% 1.73/2.01  
% 1.73/2.01  ============================== PREDICATE ELIMINATION =================
% 1.73/2.01  
% 1.73/2.01  ============================== end predicate elimination =============
% 1.73/2.01  
% 1.73/2.01  Auto_denials:
% 1.73/2.01    % copying label goals to answer in negative clause
% 1.73/2.01  
% 1.73/2.01  Term ordering decisions:
% 1.73/2.01  Function symbol KB weights:  x0=1. x1=1. f=1.
% 1.73/2.01  
% 1.73/2.01  ============================== end of process initial clauses ========
% 1.73/2.01  
% 1.73/2.01  ============================== CLAUSES FOR SEARCH ====================
% 1.73/2.01  
% 1.73/2.01  ============================== end of clauses for search =============
% 1.73/2.01  
% 1.73/2.01  ============================== SEARCH ================================
% 1.73/2.01  
% 1.73/2.01  % Starting search at 0.01 seconds.
% 1.73/2.01  
% 1.73/2.01  ============================== PROOF =================================
% 1.73/2.01  % SZS status Unsatisfiable
% 1.73/2.01  % SZS output start Refutation
% 1.73/2.01  
% 1.73/2.01  % Proof 1 at 1.02 (+ 0.01) seconds: goals.
% 1.73/2.01  % Length of proof is 51.
% 1.73/2.01  % Level of proof is 23.
% 1.73/2.01  % Maximum clause weight is 149.000.
% 1.73/2.01  % Given clauses 59.
% 1.73/2.01  
% 1.73/2.01  1 f(f(f(f(A,B),f(B,C)),D),f(B,f(f(B,f(f(A,A),A)),C))) = B # label(sos) # label(axiom).  [assumption].
% 1.73/2.01  2 f(x0,f(x0,x0)) != f(x1,f(x1,x1)) # label(goals) # label(negated_conjecture) # answer(goals).  [assumption].
% 1.73/2.01  3 f(x1,f(x1,x1)) != f(x0,f(x0,x0)) # answer(goals).  [copy(2),flip(a)].
% 1.73/2.01  4 f(f(f(A,f(f(A,f(f(A,f(f(B,B),B)),C)),D)),E),f(f(A,f(f(A,f(f(B,B),B)),C)),f(f(f(A,f(f(A,f(f(B,B),B)),C)),f(f(f(f(f(B,A),f(A,C)),F),f(f(f(B,A),f(A,C)),F)),f(f(f(B,A),f(A,C)),F))),D))) = f(A,f(f(A,f(f(B,B),B)),C)).  [para(1(a,1),1(a,1,1,1,1))].
% 1.73/2.01  5 f(f(f(f(A,f(f(f(B,C),f(C,D)),E)),C),F),f(f(f(f(B,C),f(C,D)),E),f(f(f(f(f(B,C),f(C,D)),E),f(f(A,A),A)),f(C,f(f(C,f(f(B,B),B)),D))))) = f(f(f(B,C),f(C,D)),E).  [para(1(a,1),1(a,1,1,1,2))].
% 1.73/2.01  7 f(A,f(f(A,B),f(f(f(A,B),f(f(f(C,A),f(C,A)),f(C,A))),D))) = f(A,B).  [para(1(a,1),1(a,1,1))].
% 1.73/2.01  9 f(f(f(f(A,f(f(B,f(f(B,f(f(B,f(f(C,C),C)),D)),E)),F)),f(B,f(f(B,f(f(C,C),C)),D))),V6),f(f(f(B,f(f(B,f(f(B,f(f(C,C),C)),D)),E)),F),f(f(f(f(B,f(f(B,f(f(B,f(f(C,C),C)),D)),E)),F),f(f(A,A),A)),f(f(B,f(f(B,f(f(C,C),C)),D)),f(f(f(B,f(f(B,f(f(C,C),C)),D)),f(f(f(f(f(C,B),f(B,D)),V7),f(f(f(C,B),f(B,D)),V7)),f(f(f(C,B),f(B,D)),V7))),E))))) = f(f(B,f(f(B,f(f(B,f(f(C,C),C)),D)),E)),F).  [para(4(a,1),1(a,1,1,1,2))].
% 1.73/2.01  20 f(f(f(f(A,B),f(B,f(f(f(B,f(f(A,A),A)),C),f(f(f(f(B,f(f(A,A),A)),C),f(f(f(D,f(B,f(f(A,A),A))),f(D,f(B,f(f(A,A),A)))),f(D,f(B,f(f(A,A),A))))),E)))),F),f(B,f(f(B,f(f(A,A),A)),C))) = B.  [para(7(a,1),1(a,1,2,2))].
% 1.73/2.01  21 f(f(f(f(A,B),f(B,f(f(f(B,f(f(A,A),A)),f(f(f(C,B),f(C,B)),f(C,B))),D))),E),f(B,f(f(A,A),A))) = B.  [para(7(a,1),1(a,1,2))].
% 1.73/2.01  23 f(f(A,B),f(f(f(A,B),f(B,C)),B)) = f(f(A,B),f(B,C)).  [para(1(a,1),7(a,1,2,2))].
% 1.73/2.01  37 f(f(f(f(A,B),f(B,C)),B),f(B,B)) = B.  [para(1(a,1),23(a,1,2,1)),rewrite([1(16)])].
% 1.73/2.01  51 f(f(A,A),f(A,A)) = A.  [para(1(a,1),37(a,1,1,1))].
% 1.73/2.01  62 f(f(A,B),f(A,f(f(A,f(f(A,A),A)),A))) = A.  [para(51(a,1),1(a,1,1,1))].
% 1.73/2.01  102 f(f(f(f(A,f(B,C)),B),D),f(f(B,C),f(f(f(B,C),f(f(A,A),A)),f(B,f(f(B,f(f(B,B),B)),B))))) = f(B,C).  [para(51(a,1),5(a,1,1,1,1,2,1)),rewrite([51(7),51(8),51(20)])].
% 1.73/2.01  137 f(A,f(f(A,B),f(A,B))) = f(A,B).  [para(62(a,1),7(a,1,2,2))].
% 1.73/2.01  138 f(A,f(f(A,f(f(A,f(f(A,A),A)),A)),B)) = f(A,A).  [para(62(a,1),23(a,1,1)),rewrite([62(7),62(13),62(8)]),flip(a)].
% 1.73/2.01  140 f(A,f(f(A,f(f(A,A),A)),A)) = f(A,A).  [para(62(a,1),37(a,1,1,1,1)),rewrite([138(7),62(7),62(11)]),flip(a)].
% 1.73/2.01  163 f(A,f(f(A,A),B)) = f(A,A).  [back_rewrite(138),rewrite([140(5)])].
% 1.73/2.01  172 f(f(f(f(A,f(B,C)),B),D),f(f(B,C),f(f(f(B,C),f(f(A,A),A)),f(B,B)))) = f(B,C).  [back_rewrite(102),rewrite([163(12),163(12)])].
% 1.73/2.01  173 f(f(A,B),f(A,A)) = A.  [back_rewrite(62),rewrite([163(4),163(4)])].
% 1.73/2.01  189 f(f(f(A,A),B),A) = f(A,A).  [para(173(a,1),173(a,1,2))].
% 1.73/2.01  220 f(f(A,A),f(A,B)) = A.  [para(173(a,1),163(a,1,2,1)),rewrite([173(6)])].
% 1.73/2.01  286 f(f(f(A,B),f(A,B)),A) = f(A,B).  [para(173(a,1),220(a,1,2))].
% 1.73/2.01  363 f(f(f(f(A,B),f(B,C)),D),f(B,B)) = B.  [para(1(a,1),137(a,1,2,1)),rewrite([1(14),1(16)])].
% 1.73/2.01  381 f(f(A,A),f(f(f(B,A),f(A,C)),D)) = A.  [para(1(a,1),286(a,1,1,1)),rewrite([1(10),1(16)])].
% 1.73/2.01  446 f(f(A,B),f(B,B)) = B.  [para(173(a,1),363(a,1,1))].
% 1.73/2.01  480 f(A,f(f(B,A),f(B,A))) = f(B,A).  [para(446(a,1),173(a,1,1))].
% 1.73/2.01  481 f(f(A,f(B,B)),B) = f(B,B).  [para(173(a,1),446(a,1,2))].
% 1.73/2.01  483 f(f(A,A),f(B,A)) = A.  [para(446(a,1),286(a,1,1,1)),rewrite([446(3),446(6)])].
% 1.73/2.01  513 f(A,f(B,f(A,A))) = f(A,A).  [para(483(a,1),5(a,2)),rewrite([220(3),220(9),220(12),163(18),163(18),172(19)])].
% 1.73/2.01  527 f(f(A,f(f(A,f(f(B,B),B)),C)),f(A,f(f(A,f(f(B,B),B)),C))) = A.  [para(481(a,1),1(a,1))].
% 1.73/2.01  668 f(f(f(f(A,B),f(C,B)),D),f(B,B)) = B.  [para(480(a,1),363(a,1,1,1,2))].
% 1.73/2.01  692 f(A,f(f(A,f(f(A,f(f(B,B),B)),C)),D)) = f(A,f(f(A,f(f(B,B),B)),C)).  [para(4(a,1),381(a,1,2,1)),rewrite([527(11)])].
% 1.73/2.01  707 f(f(A,B),f(A,f(f(A,f(f(C,C),C)),D))) = A.  [para(381(a,1),9(a,1,2,2,1)),rewrite([692(7),692(12),527(11),692(7),692(12),527(11),220(7),692(8),692(13),527(12),692(8),692(35),692(14),692(19),527(18)])].
% 1.73/2.01  713 f(f(A,A),f(f(f(B,A),f(C,A)),D)) = A.  [para(480(a,1),381(a,1,2,1,2))].
% 1.73/2.01  921 f(A,f(f(A,f(f(B,B),B)),C)) = f(A,A).  [para(20(a,1),446(a,1,1)),rewrite([707(11)]),flip(a)].
% 1.73/2.01  1017 f(A,f(f(f(B,f(A,A)),f(C,f(A,A))),D)) = f(A,A).  [para(173(a,1),713(a,1,1))].
% 1.73/2.01  1099 f(f(f(f(A,f(B,f(f(f(A,A),A),f(f(A,A),A)))),f(f(B,f(f(f(A,A),A),f(f(A,A),A))),f(f(f(f(f(A,A),A),f(f(A,A),A)),f(f(f(C,f(B,f(f(f(A,A),A),f(f(A,A),A)))),f(C,f(B,f(f(f(A,A),A),f(f(A,A),A))))),f(C,f(B,f(f(f(A,A),A),f(f(A,A),A)))))),D))),E),f(f(f(A,A),A),f(f(A,A),A))) = f(B,f(f(f(A,A),A),f(f(A,A),A))).  [para(481(a,1),21(a,1,1,1,2,2,1,1)),rewrite([481(55)])].
% 1.73/2.01  1102 f(f(A,B),f(A,f(f(C,C),C))) = A.  [para(513(a,1),21(a,1,1,1,2)),rewrite([446(3)])].
% 1.73/2.01  1105 f(A,f(f(B,B),B)) = f(A,A).  [para(21(a,1),381(a,1,2,1,1)),rewrite([1102(7),921(5),163(3)]),flip(a)].
% 1.73/2.01  1112 f(f(A,B),f(f(f(C,C),C),f(f(C,C),C))) = f(f(C,C),C).  [para(21(a,1),668(a,1,1,1))].
% 1.73/2.01  1119 f(f(f(f(A,A),A),f(f(A,A),A)),f(B,C)) = f(f(A,A),A).  [para(21(a,1),713(a,1,2,1))].
% 1.73/2.01  1128 f(f(f(f(A,A),A),f(f(A,A),A)),B) = f(f(A,A),A).  [para(21(a,1),21(a,1,1,1,2,2,1,1)),rewrite([480(8),1119(17),1017(32),1119(16),163(9),480(11),1119(20),1017(35),1119(19),480(22),1119(31),1017(46),1119(30),480(29),1119(38),1017(53),1119(37),480(37),1119(46),1017(61),1119(45),1119(40),1119(16),480(9),1119(18),1017(33),1119(17),1119(17),189(12),173(9),480(8),1119(17),1017(32),1119(16)]),flip(a)].
% 1.73/2.01  1131 f(A,f(f(f(B,B),B),f(f(B,B),B))) = f(f(B,B),B).  [back_rewrite(1099),rewrite([1128(42),1112(25)]),flip(a)].
% 1.73/2.01  1147 f(f(f(A,A),A),B) = f(B,B).  [para(1105(a,1),480(a,2)),rewrite([1102(9)])].
% 1.73/2.01  1265 f(f(f(A,A),A),f(f(A,A),A)) = f(f(f(B,B),B),f(f(B,B),B)).  [para(1147(a,1),1105(a,1))].
% 1.73/2.01  1277 f(f(f(A,A),A),f(f(A,A),A)) = c_0.  [new_symbol(1265)].
% 1.73/2.01  1279 f(f(A,A),A) = f(B,c_0).  [back_rewrite(1131),rewrite([1277(5)]),flip(a)].
% 1.73/2.01  1619 f(A,f(A,A)) = f(B,c_0).  [para(173(a,1),1279(a,1,1))].
% 1.73/2.01  2073 f(x0,f(x0,x0)) != f(A,c_0) # answer(goals).  [para(1619(a,1),3(a,1)),flip(a)].
% 1.73/2.01  2074 $F # answer(goals).  [resolve(2073,a,1619,a)].
% 1.73/2.01  
% 1.73/2.01  % SZS output end Refutation
% 1.73/2.01  ============================== end of proof ==========================
% 1.73/2.01  
% 1.73/2.01  ============================== STATISTICS ============================
% 1.73/2.01  
% 1.73/2.01  Given=59. Generated=9909. Kept=2072. proofs=1.
% 1.73/2.01  Usable=40. Sos=970. Demods=814. Limbo=0, Disabled=1063. Hints=0.
% 1.73/2.01  Megabytes=4.56.
% 1.73/2.01  User_CPU=1.02, System_CPU=0.01, Wall_clock=1.
% 1.73/2.01  
% 1.73/2.01  ============================== end of statistics =====================
% 1.73/2.01  
% 1.73/2.01  ============================== end of search =========================
% 1.73/2.01  
% 1.73/2.01  THEOREM PROVED
% 1.73/2.01  % SZS status Unsatisfiable
% 1.73/2.01  
% 1.73/2.01  Exiting with 1 proof.
% 1.73/2.01  
% 1.73/2.01  Process 1522 exit (max_proofs) Wed Jun 29 20:07:39 2022
% 1.73/2.01  Prover9 interrupted
%------------------------------------------------------------------------------