TSTP Solution File: LAT013-1 by Prover9---1109a

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Prover9---1109a
% Problem  : LAT013-1 : TPTP v8.1.0. Released v2.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : tptp2X_and_run_prover9 %d %s

% Computer : n025.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 06:25:06 EDT 2022

% Result   : Unsatisfiable 1.36s 1.65s
% Output   : Refutation 1.36s
% Verified : 
% SZS Type : -

% Comments : 
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%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.12  % Problem  : LAT013-1 : TPTP v8.1.0. Released v2.2.0.
% 0.07/0.12  % Command  : tptp2X_and_run_prover9 %d %s
% 0.13/0.33  % Computer : n025.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 : Wed Jun 29 01:43:07 EDT 2022
% 0.13/0.34  % CPUTime  : 
% 1.36/1.65  ============================== Prover9 ===============================
% 1.36/1.65  Prover9 (32) version 2009-11A, November 2009.
% 1.36/1.65  Process 9364 was started by sandbox on n025.cluster.edu,
% 1.36/1.65  Wed Jun 29 01:43:07 2022
% 1.36/1.65  The command was "/export/starexec/sandbox/solver/bin/prover9 -t 300 -f /tmp/Prover9_9211_n025.cluster.edu".
% 1.36/1.65  ============================== end of head ===========================
% 1.36/1.65  
% 1.36/1.65  ============================== INPUT =================================
% 1.36/1.65  
% 1.36/1.65  % Reading from file /tmp/Prover9_9211_n025.cluster.edu
% 1.36/1.65  
% 1.36/1.65  set(prolog_style_variables).
% 1.36/1.65  set(auto2).
% 1.36/1.65      % set(auto2) -> set(auto).
% 1.36/1.65      % set(auto) -> set(auto_inference).
% 1.36/1.65      % set(auto) -> set(auto_setup).
% 1.36/1.65      % set(auto_setup) -> set(predicate_elim).
% 1.36/1.65      % set(auto_setup) -> assign(eq_defs, unfold).
% 1.36/1.65      % set(auto) -> set(auto_limits).
% 1.36/1.65      % set(auto_limits) -> assign(max_weight, "100.000").
% 1.36/1.65      % set(auto_limits) -> assign(sos_limit, 20000).
% 1.36/1.65      % set(auto) -> set(auto_denials).
% 1.36/1.65      % set(auto) -> set(auto_process).
% 1.36/1.65      % set(auto2) -> assign(new_constants, 1).
% 1.36/1.65      % set(auto2) -> assign(fold_denial_max, 3).
% 1.36/1.65      % set(auto2) -> assign(max_weight, "200.000").
% 1.36/1.65      % set(auto2) -> assign(max_hours, 1).
% 1.36/1.65      % assign(max_hours, 1) -> assign(max_seconds, 3600).
% 1.36/1.65      % set(auto2) -> assign(max_seconds, 0).
% 1.36/1.65      % set(auto2) -> assign(max_minutes, 5).
% 1.36/1.65      % assign(max_minutes, 5) -> assign(max_seconds, 300).
% 1.36/1.65      % set(auto2) -> set(sort_initial_sos).
% 1.36/1.65      % set(auto2) -> assign(sos_limit, -1).
% 1.36/1.65      % set(auto2) -> assign(lrs_ticks, 3000).
% 1.36/1.65      % set(auto2) -> assign(max_megs, 400).
% 1.36/1.65      % set(auto2) -> assign(stats, some).
% 1.36/1.65      % set(auto2) -> clear(echo_input).
% 1.36/1.65      % set(auto2) -> set(quiet).
% 1.36/1.65      % set(auto2) -> clear(print_initial_clauses).
% 1.36/1.65      % set(auto2) -> clear(print_given).
% 1.36/1.65  assign(lrs_ticks,-1).
% 1.36/1.65  assign(sos_limit,10000).
% 1.36/1.65  assign(order,kbo).
% 1.36/1.65  set(lex_order_vars).
% 1.36/1.65  clear(print_given).
% 1.36/1.65  
% 1.36/1.65  % formulas(sos).  % not echoed (5 formulas)
% 1.36/1.65  
% 1.36/1.65  ============================== end of input ==========================
% 1.36/1.65  
% 1.36/1.65  % From the command line: assign(max_seconds, 300).
% 1.36/1.65  
% 1.36/1.65  ============================== PROCESS NON-CLAUSAL FORMULAS ==========
% 1.36/1.65  
% 1.36/1.65  % Formulas that are not ordinary clauses:
% 1.36/1.65  
% 1.36/1.65  ============================== end of process non-clausal formulas ===
% 1.36/1.65  
% 1.36/1.65  ============================== PROCESS INITIAL CLAUSES ===============
% 1.36/1.65  
% 1.36/1.65  ============================== PREDICATE ELIMINATION =================
% 1.36/1.65  
% 1.36/1.65  ============================== end predicate elimination =============
% 1.36/1.65  
% 1.36/1.65  Auto_denials:
% 1.36/1.65    % copying label prove_associativity_of_meet to answer in negative clause
% 1.36/1.65  
% 1.36/1.65  Term ordering decisions:
% 1.36/1.65  Function symbol KB weights:  a=1. b=1. c=1. join=1. meet=1.
% 1.36/1.65  
% 1.36/1.65  ============================== end of process initial clauses ========
% 1.36/1.65  
% 1.36/1.65  ============================== CLAUSES FOR SEARCH ====================
% 1.36/1.65  
% 1.36/1.65  ============================== end of clauses for search =============
% 1.36/1.65  
% 1.36/1.65  ============================== SEARCH ================================
% 1.36/1.65  
% 1.36/1.65  % Starting search at 0.01 seconds.
% 1.36/1.65  
% 1.36/1.65  ============================== PROOF =================================
% 1.36/1.65  % SZS status Unsatisfiable
% 1.36/1.65  % SZS output start Refutation
% 1.36/1.65  
% 1.36/1.65  % Proof 1 at 0.63 (+ 0.03) seconds: prove_associativity_of_meet.
% 1.36/1.65  % Length of proof is 27.
% 1.36/1.65  % Level of proof is 11.
% 1.36/1.65  % Maximum clause weight is 21.000.
% 1.36/1.65  % Given clauses 175.
% 1.36/1.65  
% 1.36/1.65  1 join(A,meet(B,meet(A,C))) = A # label(mckenzie1) # label(axiom).  [assumption].
% 1.36/1.65  2 meet(A,join(B,join(A,C))) = A # label(mckenzie2) # label(axiom).  [assumption].
% 1.36/1.65  3 join(join(meet(A,B),meet(B,C)),B) = B # label(mckenzie3) # label(axiom).  [assumption].
% 1.36/1.65  4 meet(meet(join(A,B),join(B,C)),B) = B # label(mckenzie4) # label(axiom).  [assumption].
% 1.36/1.65  5 meet(meet(a,b),c) != meet(a,meet(b,c)) # label(prove_associativity_of_meet) # label(negated_conjecture) # answer(prove_associativity_of_meet).  [assumption].
% 1.36/1.65  6 join(A,meet(B,A)) = A.  [para(2(a,1),1(a,1,2,2))].
% 1.36/1.65  7 meet(A,join(B,A)) = A.  [para(1(a,1),2(a,1,2,2))].
% 1.36/1.65  8 join(meet(A,B),B) = B.  [para(1(a,1),3(a,1,1))].
% 1.36/1.65  10 meet(A,join(A,B)) = A.  [para(3(a,1),2(a,1,2))].
% 1.36/1.65  14 join(A,meet(A,B)) = A.  [para(4(a,1),1(a,1,2))].
% 1.36/1.65  15 meet(meet(A,join(meet(B,meet(A,C)),D)),meet(B,meet(A,C))) = meet(B,meet(A,C)).  [para(1(a,1),4(a,1,1,1))].
% 1.36/1.65  19 meet(A,A) = A.  [para(3(a,1),4(a,1,1,1)),rewrite([10(2)])].
% 1.36/1.65  22 meet(meet(A,join(meet(B,A),C)),meet(B,A)) = meet(B,A).  [para(6(a,1),4(a,1,1,1))].
% 1.36/1.65  29 meet(meet(join(A,meet(B,C)),C),meet(B,C)) = meet(B,C).  [para(8(a,1),4(a,1,1,2))].
% 1.36/1.65  30 join(A,join(B,A)) = join(B,A).  [para(7(a,1),8(a,1,1))].
% 1.36/1.65  62 join(meet(A,B),A) = A.  [para(14(a,1),30(a,1,2)),rewrite([14(4)])].
% 1.36/1.65  117 meet(meet(A,B),meet(B,meet(A,C))) = meet(B,meet(A,C)).  [para(62(a,1),15(a,1,1,2))].
% 1.36/1.65  337 meet(meet(A,B),meet(B,A)) = meet(B,A).  [para(62(a,1),22(a,1,1,2))].
% 1.36/1.65  1242 join(meet(A,B),meet(B,A)) = meet(A,B).  [para(337(a,1),14(a,1,2))].
% 1.36/1.65  1243 meet(A,B) = meet(B,A).  [para(337(a,1),62(a,1,1)),rewrite([1242(3)])].
% 1.36/1.65  1245 meet(meet(A,B),meet(B,join(C,meet(A,B)))) = meet(A,B).  [para(29(a,1),337(a,2)),rewrite([1243(4),1243(8),1243(10),19(11)])].
% 1.36/1.65  1652 meet(c,meet(a,b)) != meet(a,meet(b,c)) # answer(prove_associativity_of_meet).  [back_rewrite(5),rewrite([1243(5)])].
% 1.36/1.65  2097 join(meet(A,B),meet(B,meet(A,C))) = meet(A,B).  [para(117(a,1),14(a,1,2))].
% 1.36/1.65  3118 meet(meet(A,B),meet(C,A)) = meet(C,meet(A,B)).  [para(2097(a,1),1245(a,1,2,2)),rewrite([1243(4),117(6)])].
% 1.36/1.65  3129 meet(meet(A,B),meet(B,C)) = meet(A,meet(B,C)).  [para(3118(a,1),1243(a,1)),flip(a)].
% 1.36/1.65  3130 meet(A,meet(B,C)) = meet(C,meet(A,B)).  [para(1243(a,1),3118(a,1,1)),rewrite([1243(2),3129(3),1243(3)])].
% 1.36/1.65  3131 $F # answer(prove_associativity_of_meet).  [resolve(3130,a,1652,a(flip))].
% 1.36/1.65  
% 1.36/1.65  % SZS output end Refutation
% 1.36/1.65  ============================== end of proof ==========================
% 1.36/1.65  
% 1.36/1.65  ============================== STATISTICS ============================
% 1.36/1.65  
% 1.36/1.65  Given=175. Generated=28789. Kept=3130. proofs=1.
% 1.36/1.65  Usable=104. Sos=1506. Demods=1613. Limbo=4, Disabled=1520. Hints=0.
% 1.36/1.65  Megabytes=3.29.
% 1.36/1.65  User_CPU=0.63, System_CPU=0.03, Wall_clock=1.
% 1.36/1.65  
% 1.36/1.65  ============================== end of statistics =====================
% 1.36/1.65  
% 1.36/1.65  ============================== end of search =========================
% 1.36/1.65  
% 1.36/1.65  THEOREM PROVED
% 1.36/1.65  % SZS status Unsatisfiable
% 1.36/1.65  
% 1.36/1.65  Exiting with 1 proof.
% 1.36/1.65  
% 1.36/1.65  Process 9364 exit (max_proofs) Wed Jun 29 01:43:08 2022
% 1.36/1.65  Prover9 interrupted
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