TSTP Solution File: GRP572-1 by Prover9---1109a

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Prover9---1109a
% Problem  : GRP572-1 : TPTP v8.1.0. Bugfixed v2.7.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : tptp2X_and_run_prover9 %d %s

% Computer : n028.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 11:19:40 EDT 2022

% Result   : Unsatisfiable 0.46s 1.00s
% Output   : Refutation 0.46s
% Verified : 
% SZS Type : -

% Comments : 
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%----WARNING: Could not form TPTP format derivation
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%----ORIGINAL SYSTEM OUTPUT
% 0.08/0.12  % Problem  : GRP572-1 : TPTP v8.1.0. Bugfixed v2.7.0.
% 0.08/0.13  % Command  : tptp2X_and_run_prover9 %d %s
% 0.13/0.34  % Computer : n028.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 : Mon Jun 13 09:59:22 EDT 2022
% 0.13/0.34  % CPUTime  : 
% 0.46/1.00  ============================== Prover9 ===============================
% 0.46/1.00  Prover9 (32) version 2009-11A, November 2009.
% 0.46/1.00  Process 14281 was started by sandbox2 on n028.cluster.edu,
% 0.46/1.00  Mon Jun 13 09:59:23 2022
% 0.46/1.00  The command was "/export/starexec/sandbox2/solver/bin/prover9 -t 300 -f /tmp/Prover9_14020_n028.cluster.edu".
% 0.46/1.00  ============================== end of head ===========================
% 0.46/1.00  
% 0.46/1.00  ============================== INPUT =================================
% 0.46/1.00  
% 0.46/1.00  % Reading from file /tmp/Prover9_14020_n028.cluster.edu
% 0.46/1.00  
% 0.46/1.00  set(prolog_style_variables).
% 0.46/1.00  set(auto2).
% 0.46/1.00      % set(auto2) -> set(auto).
% 0.46/1.00      % set(auto) -> set(auto_inference).
% 0.46/1.00      % set(auto) -> set(auto_setup).
% 0.46/1.00      % set(auto_setup) -> set(predicate_elim).
% 0.46/1.00      % set(auto_setup) -> assign(eq_defs, unfold).
% 0.46/1.00      % set(auto) -> set(auto_limits).
% 0.46/1.00      % set(auto_limits) -> assign(max_weight, "100.000").
% 0.46/1.00      % set(auto_limits) -> assign(sos_limit, 20000).
% 0.46/1.00      % set(auto) -> set(auto_denials).
% 0.46/1.00      % set(auto) -> set(auto_process).
% 0.46/1.00      % set(auto2) -> assign(new_constants, 1).
% 0.46/1.00      % set(auto2) -> assign(fold_denial_max, 3).
% 0.46/1.00      % set(auto2) -> assign(max_weight, "200.000").
% 0.46/1.00      % set(auto2) -> assign(max_hours, 1).
% 0.46/1.00      % assign(max_hours, 1) -> assign(max_seconds, 3600).
% 0.46/1.00      % set(auto2) -> assign(max_seconds, 0).
% 0.46/1.00      % set(auto2) -> assign(max_minutes, 5).
% 0.46/1.00      % assign(max_minutes, 5) -> assign(max_seconds, 300).
% 0.46/1.00      % set(auto2) -> set(sort_initial_sos).
% 0.46/1.00      % set(auto2) -> assign(sos_limit, -1).
% 0.46/1.00      % set(auto2) -> assign(lrs_ticks, 3000).
% 0.46/1.00      % set(auto2) -> assign(max_megs, 400).
% 0.46/1.00      % set(auto2) -> assign(stats, some).
% 0.46/1.00      % set(auto2) -> clear(echo_input).
% 0.46/1.00      % set(auto2) -> set(quiet).
% 0.46/1.00      % set(auto2) -> clear(print_initial_clauses).
% 0.46/1.00      % set(auto2) -> clear(print_given).
% 0.46/1.00  assign(lrs_ticks,-1).
% 0.46/1.00  assign(sos_limit,10000).
% 0.46/1.00  assign(order,kbo).
% 0.46/1.00  set(lex_order_vars).
% 0.46/1.00  clear(print_given).
% 0.46/1.00  
% 0.46/1.00  % formulas(sos).  % not echoed (5 formulas)
% 0.46/1.00  
% 0.46/1.00  ============================== end of input ==========================
% 0.46/1.00  
% 0.46/1.00  % From the command line: assign(max_seconds, 300).
% 0.46/1.00  
% 0.46/1.00  ============================== PROCESS NON-CLAUSAL FORMULAS ==========
% 0.46/1.00  
% 0.46/1.00  % Formulas that are not ordinary clauses:
% 0.46/1.00  
% 0.46/1.00  ============================== end of process non-clausal formulas ===
% 0.46/1.00  
% 0.46/1.00  ============================== PROCESS INITIAL CLAUSES ===============
% 0.46/1.00  
% 0.46/1.00  ============================== PREDICATE ELIMINATION =================
% 0.46/1.00  
% 0.46/1.00  ============================== end predicate elimination =============
% 0.46/1.00  
% 0.46/1.00  Auto_denials:
% 0.46/1.00    % copying label prove_these_axioms_4 to answer in negative clause
% 0.46/1.00  
% 0.46/1.00  Term ordering decisions:
% 0.46/1.00  
% 0.46/1.00  % Assigning unary symbol inverse kb_weight 0 and highest precedence (7).
% 0.46/1.00  Function symbol KB weights:  identity=1. a=1. b=1. double_divide=1. multiply=1. inverse=0.
% 0.46/1.00  
% 0.46/1.00  ============================== end of process initial clauses ========
% 0.46/1.00  
% 0.46/1.00  ============================== CLAUSES FOR SEARCH ====================
% 0.46/1.00  
% 0.46/1.00  ============================== end of clauses for search =============
% 0.46/1.00  
% 0.46/1.00  ============================== SEARCH ================================
% 0.46/1.00  
% 0.46/1.00  % Starting search at 0.01 seconds.
% 0.46/1.00  
% 0.46/1.00  ============================== PROOF =================================
% 0.46/1.00  % SZS status Unsatisfiable
% 0.46/1.00  % SZS output start Refutation
% 0.46/1.00  
% 0.46/1.00  % Proof 1 at 0.02 (+ 0.00) seconds: prove_these_axioms_4.
% 0.46/1.00  % Length of proof is 27.
% 0.46/1.00  % Level of proof is 12.
% 0.46/1.00  % Maximum clause weight is 23.000.
% 0.46/1.00  % Given clauses 21.
% 0.46/1.00  
% 0.46/1.00  1 inverse(A) = double_divide(A,identity) # label(inverse) # label(axiom).  [assumption].
% 0.46/1.00  2 identity = double_divide(A,inverse(A)) # label(identity) # label(axiom).  [assumption].
% 0.46/1.00  3 double_divide(A,double_divide(A,identity)) = identity.  [copy(2),rewrite([1(2)]),flip(a)].
% 0.46/1.00  4 multiply(A,B) = double_divide(double_divide(B,A),identity) # label(multiply) # label(axiom).  [assumption].
% 0.46/1.00  5 double_divide(double_divide(A,double_divide(double_divide(B,double_divide(A,C)),double_divide(C,identity))),double_divide(identity,identity)) = B # label(single_axiom) # label(axiom).  [assumption].
% 0.46/1.00  6 multiply(a,b) != multiply(b,a) # label(prove_these_axioms_4) # label(negated_conjecture) # answer(prove_these_axioms_4).  [assumption].
% 0.46/1.00  7 double_divide(double_divide(b,a),identity) != double_divide(double_divide(a,b),identity) # answer(prove_these_axioms_4).  [copy(6),rewrite([4(3),4(8)])].
% 0.46/1.00  8 double_divide(double_divide(A,double_divide(double_divide(B,identity),double_divide(double_divide(A,identity),identity))),double_divide(identity,identity)) = B.  [para(3(a,1),5(a,1,1,2,1,2))].
% 0.46/1.00  9 double_divide(double_divide(A,identity),double_divide(identity,identity)) = A.  [para(3(a,1),5(a,1,1,2,1)),rewrite([3(5)])].
% 0.46/1.00  11 double_divide(double_divide(identity,double_divide(A,double_divide(identity,identity))),double_divide(identity,identity)) = double_divide(B,double_divide(double_divide(A,double_divide(B,C)),double_divide(C,identity))).  [para(5(a,1),5(a,1,1,2,1))].
% 0.46/1.00  13 double_divide(double_divide(identity,double_divide(A,double_divide(identity,identity))),double_divide(identity,identity)) = double_divide(B,double_divide(double_divide(A,identity),double_divide(double_divide(B,identity),identity))).  [para(8(a,1),5(a,1,1,2,1))].
% 0.46/1.00  15 double_divide(double_divide(identity,double_divide(A,double_divide(identity,identity))),double_divide(identity,identity)) = double_divide(A,identity).  [para(9(a,1),5(a,1,1,2,1))].
% 0.46/1.00  16 double_divide(A,double_divide(double_divide(B,identity),double_divide(double_divide(A,identity),identity))) = double_divide(B,identity).  [back_rewrite(13),rewrite([15(10)]),flip(a)].
% 0.46/1.00  17 double_divide(A,double_divide(double_divide(B,double_divide(A,C)),double_divide(C,identity))) = double_divide(B,identity).  [back_rewrite(11),rewrite([15(10)]),flip(a)].
% 0.46/1.00  18 double_divide(identity,identity) = identity.  [para(3(a,1),15(a,1,1,2)),rewrite([9(7)]),flip(a)].
% 0.46/1.00  23 double_divide(double_divide(A,identity),identity) = A.  [back_rewrite(9),rewrite([18(5)])].
% 0.46/1.00  25 double_divide(A,double_divide(double_divide(B,identity),A)) = double_divide(B,identity).  [back_rewrite(16),rewrite([23(6)])].
% 0.46/1.00  26 double_divide(double_divide(A,identity),A) = identity.  [para(23(a,1),3(a,1,2))].
% 0.46/1.00  27 double_divide(identity,A) = double_divide(A,identity).  [para(18(a,1),17(a,1,2,1,2)),rewrite([18(6),23(5)])].
% 0.46/1.00  31 double_divide(identity,double_divide(A,identity)) = A.  [para(23(a,1),17(a,2)),rewrite([17(8),27(4,R)])].
% 0.46/1.00  34 double_divide(identity,double_divide(b,a)) != double_divide(identity,double_divide(a,b)) # answer(prove_these_axioms_4).  [back_rewrite(7),rewrite([27(5,R),27(10,R)])].
% 0.46/1.00  36 double_divide(identity,double_divide(identity,double_divide(A,B))) = double_divide(A,B).  [para(26(a,1),17(a,1,2,1)),rewrite([31(4),27(4,R),27(6,R)]),flip(a)].
% 0.46/1.00  38 double_divide(identity,double_divide(double_divide(A,B),B)) = double_divide(A,identity).  [para(31(a,1),17(a,1,2,1,2)),rewrite([27(6,R),31(6)])].
% 0.46/1.00  48 double_divide(double_divide(A,B),B) = A.  [para(38(a,1),36(a,1,2)),rewrite([31(4)]),flip(a)].
% 0.46/1.00  52 double_divide(A,double_divide(B,A)) = B.  [para(48(a,1),25(a,1,2,1)),rewrite([27(6,R),31(6)])].
% 0.46/1.00  58 double_divide(A,B) = double_divide(B,A).  [para(48(a,1),52(a,1,2))].
% 0.46/1.00  64 $F # answer(prove_these_axioms_4).  [back_rewrite(34),rewrite([58(4)]),xx(a)].
% 0.46/1.00  
% 0.46/1.00  % SZS output end Refutation
% 0.46/1.00  ============================== end of proof ==========================
% 0.46/1.00  
% 0.46/1.00  ============================== STATISTICS ============================
% 0.46/1.00  
% 0.46/1.00  Given=21. Generated=277. Kept=61. proofs=1.
% 0.46/1.00  Usable=4. Sos=8. Demods=17. Limbo=6, Disabled=48. Hints=0.
% 0.46/1.00  Megabytes=0.07.
% 0.46/1.00  User_CPU=0.02, System_CPU=0.00, Wall_clock=0.
% 0.46/1.00  
% 0.46/1.00  ============================== end of statistics =====================
% 0.46/1.00  
% 0.46/1.00  ============================== end of search =========================
% 0.46/1.00  
% 0.46/1.00  THEOREM PROVED
% 0.46/1.00  % SZS status Unsatisfiable
% 0.46/1.00  
% 0.46/1.00  Exiting with 1 proof.
% 0.46/1.00  
% 0.46/1.00  Process 14281 exit (max_proofs) Mon Jun 13 09:59:23 2022
% 0.46/1.00  Prover9 interrupted
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