TSTP Solution File: HEN005-5 by Prover9---1109a

View Problem - Process Solution

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% File     : Prover9---1109a
% Problem  : HEN005-5 : TPTP v8.1.0. Released v1.0.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : tptp2X_and_run_prover9 %d %s

% Computer : n021.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 13:00:48 EDT 2022

% Result   : Unsatisfiable 0.75s 1.02s
% Output   : Refutation 0.75s
% Verified : 
% SZS Type : -

% Comments : 
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%----WARNING: Could not form TPTP format derivation
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%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.12  % Problem  : HEN005-5 : TPTP v8.1.0. Released v1.0.0.
% 0.07/0.13  % Command  : tptp2X_and_run_prover9 %d %s
% 0.12/0.35  % Computer : n021.cluster.edu
% 0.12/0.35  % Model    : x86_64 x86_64
% 0.12/0.35  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.35  % Memory   : 8042.1875MB
% 0.12/0.35  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.35  % CPULimit : 300
% 0.12/0.35  % WCLimit  : 600
% 0.12/0.35  % DateTime : Fri Jul  1 13:10:59 EDT 2022
% 0.12/0.35  % CPUTime  : 
% 0.75/1.02  ============================== Prover9 ===============================
% 0.75/1.02  Prover9 (32) version 2009-11A, November 2009.
% 0.75/1.02  Process 24651 was started by sandbox on n021.cluster.edu,
% 0.75/1.02  Fri Jul  1 13:10:59 2022
% 0.75/1.02  The command was "/export/starexec/sandbox/solver/bin/prover9 -t 300 -f /tmp/Prover9_24498_n021.cluster.edu".
% 0.75/1.02  ============================== end of head ===========================
% 0.75/1.02  
% 0.75/1.02  ============================== INPUT =================================
% 0.75/1.02  
% 0.75/1.02  % Reading from file /tmp/Prover9_24498_n021.cluster.edu
% 0.75/1.02  
% 0.75/1.02  set(prolog_style_variables).
% 0.75/1.02  set(auto2).
% 0.75/1.02      % set(auto2) -> set(auto).
% 0.75/1.02      % set(auto) -> set(auto_inference).
% 0.75/1.02      % set(auto) -> set(auto_setup).
% 0.75/1.02      % set(auto_setup) -> set(predicate_elim).
% 0.75/1.02      % set(auto_setup) -> assign(eq_defs, unfold).
% 0.75/1.02      % set(auto) -> set(auto_limits).
% 0.75/1.02      % set(auto_limits) -> assign(max_weight, "100.000").
% 0.75/1.02      % set(auto_limits) -> assign(sos_limit, 20000).
% 0.75/1.02      % set(auto) -> set(auto_denials).
% 0.75/1.02      % set(auto) -> set(auto_process).
% 0.75/1.02      % set(auto2) -> assign(new_constants, 1).
% 0.75/1.02      % set(auto2) -> assign(fold_denial_max, 3).
% 0.75/1.02      % set(auto2) -> assign(max_weight, "200.000").
% 0.75/1.02      % set(auto2) -> assign(max_hours, 1).
% 0.75/1.02      % assign(max_hours, 1) -> assign(max_seconds, 3600).
% 0.75/1.02      % set(auto2) -> assign(max_seconds, 0).
% 0.75/1.02      % set(auto2) -> assign(max_minutes, 5).
% 0.75/1.02      % assign(max_minutes, 5) -> assign(max_seconds, 300).
% 0.75/1.02      % set(auto2) -> set(sort_initial_sos).
% 0.75/1.02      % set(auto2) -> assign(sos_limit, -1).
% 0.75/1.02      % set(auto2) -> assign(lrs_ticks, 3000).
% 0.75/1.02      % set(auto2) -> assign(max_megs, 400).
% 0.75/1.02      % set(auto2) -> assign(stats, some).
% 0.75/1.02      % set(auto2) -> clear(echo_input).
% 0.75/1.02      % set(auto2) -> set(quiet).
% 0.75/1.02      % set(auto2) -> clear(print_initial_clauses).
% 0.75/1.02      % set(auto2) -> clear(print_given).
% 0.75/1.02  assign(lrs_ticks,-1).
% 0.75/1.02  assign(sos_limit,10000).
% 0.75/1.02  assign(order,kbo).
% 0.75/1.02  set(lex_order_vars).
% 0.75/1.02  clear(print_given).
% 0.75/1.02  
% 0.75/1.02  % formulas(sos).  % not echoed (8 formulas)
% 0.75/1.02  
% 0.75/1.02  ============================== end of input ==========================
% 0.75/1.02  
% 0.75/1.02  % From the command line: assign(max_seconds, 300).
% 0.75/1.02  
% 0.75/1.02  ============================== PROCESS NON-CLAUSAL FORMULAS ==========
% 0.75/1.02  
% 0.75/1.02  % Formulas that are not ordinary clauses:
% 0.75/1.02  
% 0.75/1.02  ============================== end of process non-clausal formulas ===
% 0.75/1.02  
% 0.75/1.02  ============================== PROCESS INITIAL CLAUSES ===============
% 0.75/1.02  
% 0.75/1.02  ============================== PREDICATE ELIMINATION =================
% 0.75/1.02  
% 0.75/1.02  ============================== end predicate elimination =============
% 0.75/1.02  
% 0.75/1.02  Auto_denials:
% 0.75/1.02    % copying label prove_transitivity_of_divide_to_zero to answer in negative clause
% 0.75/1.02  
% 0.75/1.02  Term ordering decisions:
% 0.75/1.02  Function symbol KB weights:  zero=1. b=1. a=1. c=1. identity=1. divide=1.
% 0.75/1.02  
% 0.75/1.02  ============================== end of process initial clauses ========
% 0.75/1.02  
% 0.75/1.02  ============================== CLAUSES FOR SEARCH ====================
% 0.75/1.02  
% 0.75/1.02  ============================== end of clauses for search =============
% 0.75/1.02  
% 0.75/1.02  ============================== SEARCH ================================
% 0.75/1.02  
% 0.75/1.02  % Starting search at 0.01 seconds.
% 0.75/1.02  
% 0.75/1.02  ============================== PROOF =================================
% 0.75/1.02  % SZS status Unsatisfiable
% 0.75/1.02  % SZS output start Refutation
% 0.75/1.02  
% 0.75/1.02  % Proof 1 at 0.02 (+ 0.00) seconds: prove_transitivity_of_divide_to_zero.
% 0.75/1.02  % Length of proof is 31.
% 0.75/1.02  % Level of proof is 10.
% 0.75/1.02  % Maximum clause weight is 17.000.
% 0.75/1.02  % Given clauses 18.
% 0.75/1.02  
% 0.75/1.02  1 divide(zero,A) = zero # label(zero_is_smallest) # label(axiom).  [assumption].
% 0.75/1.02  2 divide(A,identity) = zero # label(identity_is_largest) # label(axiom).  [assumption].
% 0.75/1.02  3 divide(a,b) = zero # label(a_divide_b_is_zero) # label(hypothesis).  [assumption].
% 0.75/1.02  4 zero = divide(a,b).  [copy(3),flip(a)].
% 0.75/1.02  5 divide(b,c) = zero # label(b_divide_c_is_zero) # label(hypothesis).  [assumption].
% 0.75/1.02  6 divide(a,b) = divide(b,c).  [copy(5),rewrite([4(4)]),flip(a)].
% 0.75/1.02  9 divide(divide(divide(A,B),divide(C,B)),divide(divide(A,C),B)) = zero # label(quotient_property) # label(axiom).  [assumption].
% 0.75/1.02  10 divide(divide(divide(A,B),divide(C,B)),divide(divide(A,C),B)) = divide(b,c).  [copy(9),rewrite([4(7),6(9)])].
% 0.75/1.02  11 divide(a,c) != zero # label(prove_transitivity_of_divide_to_zero) # label(negated_conjecture) # answer(prove_transitivity_of_divide_to_zero).  [assumption].
% 0.75/1.02  12 divide(a,c) != divide(b,c) # answer(prove_transitivity_of_divide_to_zero).  [copy(11),rewrite([4(4),6(6)])].
% 0.75/1.02  13 divide(A,B) != zero | divide(B,A) != zero | A = B # label(divide_and_equal) # label(axiom).  [assumption].
% 0.75/1.02  14 divide(b,c) != divide(A,B) | divide(b,c) != divide(B,A) | A = B.  [copy(13),rewrite([4(2),6(4),4(7),6(9)]),flip(a),flip(b)].
% 0.75/1.02  15 divide(b,c) = divide(A,identity).  [back_rewrite(2),rewrite([4(3),6(5)]),flip(a)].
% 0.75/1.02  16 divide(divide(b,c),A) = divide(b,c).  [back_rewrite(1),rewrite([4(1),6(3),4(5),6(7)])].
% 0.75/1.02  18 divide(a,c) = c_0.  [new_symbol(12)].
% 0.75/1.02  19 divide(b,c) != c_0 # answer(prove_transitivity_of_divide_to_zero).  [back_rewrite(12),rewrite([18(3)]),flip(a)].
% 0.75/1.02  33 divide(divide(divide(A,c),divide(B,identity)),divide(divide(A,b),c)) = divide(b,c).  [para(15(a,1),10(a,1,1,2))].
% 0.75/1.02  38 divide(A,identity) != divide(B,C) | divide(b,c) != divide(C,B) | B = C.  [para(15(a,1),14(a,1))].
% 0.75/1.02  42 divide(A,identity) = divide(B,identity).  [para(15(a,1),15(a,1))].
% 0.75/1.02  43 divide(A,identity) = c_1.  [new_symbol(42)].
% 0.75/1.02  46 divide(A,B) != c_1 | divide(b,c) != divide(B,A) | A = B.  [back_rewrite(38),rewrite([43(2)]),flip(a)].
% 0.75/1.02  50 divide(divide(divide(A,c),c_1),divide(divide(A,b),c)) = divide(b,c).  [back_rewrite(33),rewrite([43(4)])].
% 0.75/1.02  53 divide(b,c) = c_1.  [back_rewrite(15),rewrite([43(5)])].
% 0.75/1.02  56 divide(divide(divide(A,c),c_1),divide(divide(A,b),c)) = c_1.  [back_rewrite(50),rewrite([53(12)])].
% 0.75/1.02  58 divide(A,B) != c_1 | divide(B,A) != c_1 | A = B.  [back_rewrite(46),rewrite([53(6)]),flip(b)].
% 0.75/1.02  73 c_1 != c_0 # answer(prove_transitivity_of_divide_to_zero).  [back_rewrite(19),rewrite([53(3)])].
% 0.75/1.02  75 divide(c_1,A) = c_1.  [back_rewrite(16),rewrite([53(3),53(5)])].
% 0.75/1.02  78 divide(a,b) = c_1.  [back_rewrite(6),rewrite([53(6)])].
% 0.75/1.02  80 divide(divide(c_0,c_1),c_1) = c_1.  [para(18(a,1),56(a,1,1,1)),rewrite([78(6),75(6)])].
% 0.75/1.02  84 divide(c_0,c_1) = c_1.  [hyper(58,a,80,a,b,75,a)].
% 0.75/1.02  85 $F # answer(prove_transitivity_of_divide_to_zero).  [ur(58,b,75,a,c,73,a(flip)),rewrite([84(3)]),xx(a)].
% 0.75/1.02  
% 0.75/1.02  % SZS output end Refutation
% 0.75/1.02  ============================== end of proof ==========================
% 0.75/1.02  
% 0.75/1.02  ============================== STATISTICS ============================
% 0.75/1.02  
% 0.75/1.02  Given=18. Generated=146. Kept=78. proofs=1.
% 0.75/1.02  Usable=13. Sos=17. Demods=24. Limbo=1, Disabled=55. Hints=0.
% 0.75/1.02  Megabytes=0.09.
% 0.75/1.02  User_CPU=0.02, System_CPU=0.00, Wall_clock=0.
% 0.75/1.02  
% 0.75/1.02  ============================== end of statistics =====================
% 0.75/1.02  
% 0.75/1.02  ============================== end of search =========================
% 0.75/1.02  
% 0.75/1.02  THEOREM PROVED
% 0.75/1.02  % SZS status Unsatisfiable
% 0.75/1.02  
% 0.75/1.02  Exiting with 1 proof.
% 0.75/1.02  
% 0.75/1.02  Process 24651 exit (max_proofs) Fri Jul  1 13:10:59 2022
% 0.75/1.02  Prover9 interrupted
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