TSTP Solution File: GRP334-1 by Prover9---1109a

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Prover9---1109a
% Problem  : GRP334-1 : TPTP v8.1.0. Released v2.5.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : tptp2X_and_run_prover9 %d %s

% Computer : n011.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 11:18:40 EDT 2022

% Result   : Unsatisfiable 7.29s 7.57s
% Output   : Refutation 7.29s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.04/0.12  % Problem  : GRP334-1 : TPTP v8.1.0. Released v2.5.0.
% 0.04/0.13  % Command  : tptp2X_and_run_prover9 %d %s
% 0.14/0.34  % Computer : n011.cluster.edu
% 0.14/0.34  % Model    : x86_64 x86_64
% 0.14/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/0.34  % Memory   : 8042.1875MB
% 0.14/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.14/0.34  % CPULimit : 300
% 0.14/0.34  % WCLimit  : 600
% 0.14/0.34  % DateTime : Mon Jun 13 18:01:04 EDT 2022
% 0.14/0.34  % CPUTime  : 
% 7.29/7.57  ============================== Prover9 ===============================
% 7.29/7.57  Prover9 (32) version 2009-11A, November 2009.
% 7.29/7.57  Process 3160 was started by sandbox2 on n011.cluster.edu,
% 7.29/7.57  Mon Jun 13 18:01:04 2022
% 7.29/7.57  The command was "/export/starexec/sandbox2/solver/bin/prover9 -t 300 -f /tmp/Prover9_3006_n011.cluster.edu".
% 7.29/7.57  ============================== end of head ===========================
% 7.29/7.57  
% 7.29/7.57  ============================== INPUT =================================
% 7.29/7.57  
% 7.29/7.57  % Reading from file /tmp/Prover9_3006_n011.cluster.edu
% 7.29/7.57  
% 7.29/7.57  set(prolog_style_variables).
% 7.29/7.57  set(auto2).
% 7.29/7.57      % set(auto2) -> set(auto).
% 7.29/7.57      % set(auto) -> set(auto_inference).
% 7.29/7.57      % set(auto) -> set(auto_setup).
% 7.29/7.57      % set(auto_setup) -> set(predicate_elim).
% 7.29/7.57      % set(auto_setup) -> assign(eq_defs, unfold).
% 7.29/7.57      % set(auto) -> set(auto_limits).
% 7.29/7.57      % set(auto_limits) -> assign(max_weight, "100.000").
% 7.29/7.57      % set(auto_limits) -> assign(sos_limit, 20000).
% 7.29/7.57      % set(auto) -> set(auto_denials).
% 7.29/7.57      % set(auto) -> set(auto_process).
% 7.29/7.57      % set(auto2) -> assign(new_constants, 1).
% 7.29/7.57      % set(auto2) -> assign(fold_denial_max, 3).
% 7.29/7.57      % set(auto2) -> assign(max_weight, "200.000").
% 7.29/7.57      % set(auto2) -> assign(max_hours, 1).
% 7.29/7.57      % assign(max_hours, 1) -> assign(max_seconds, 3600).
% 7.29/7.57      % set(auto2) -> assign(max_seconds, 0).
% 7.29/7.57      % set(auto2) -> assign(max_minutes, 5).
% 7.29/7.57      % assign(max_minutes, 5) -> assign(max_seconds, 300).
% 7.29/7.57      % set(auto2) -> set(sort_initial_sos).
% 7.29/7.57      % set(auto2) -> assign(sos_limit, -1).
% 7.29/7.57      % set(auto2) -> assign(lrs_ticks, 3000).
% 7.29/7.57      % set(auto2) -> assign(max_megs, 400).
% 7.29/7.57      % set(auto2) -> assign(stats, some).
% 7.29/7.57      % set(auto2) -> clear(echo_input).
% 7.29/7.57      % set(auto2) -> set(quiet).
% 7.29/7.57      % set(auto2) -> clear(print_initial_clauses).
% 7.29/7.57      % set(auto2) -> clear(print_given).
% 7.29/7.57  assign(lrs_ticks,-1).
% 7.29/7.57  assign(sos_limit,10000).
% 7.29/7.57  assign(order,kbo).
% 7.29/7.57  set(lex_order_vars).
% 7.29/7.57  clear(print_given).
% 7.29/7.57  
% 7.29/7.57  % formulas(sos).  % not echoed (25 formulas)
% 7.29/7.57  
% 7.29/7.57  ============================== end of input ==========================
% 7.29/7.57  
% 7.29/7.57  % From the command line: assign(max_seconds, 300).
% 7.29/7.57  
% 7.29/7.57  ============================== PROCESS NON-CLAUSAL FORMULAS ==========
% 7.29/7.57  
% 7.29/7.57  % Formulas that are not ordinary clauses:
% 7.29/7.57  
% 7.29/7.57  ============================== end of process non-clausal formulas ===
% 7.29/7.57  
% 7.29/7.57  ============================== PROCESS INITIAL CLAUSES ===============
% 7.29/7.57  
% 7.29/7.57  ============================== PREDICATE ELIMINATION =================
% 7.29/7.57  
% 7.29/7.57  ============================== end predicate elimination =============
% 7.29/7.57  
% 7.29/7.57  Auto_denials:  (non-Horn, no changes).
% 7.29/7.57  
% 7.29/7.57  Term ordering decisions:
% 7.29/7.57  
% 7.29/7.57  % Assigning unary symbol inverse kb_weight 0 and highest precedence (11).
% 7.29/7.57  Function symbol KB weights:  sk_c6=1. sk_c5=1. sk_c1=1. sk_c2=1. sk_c7=1. sk_c3=1. sk_c4=1. identity=1. multiply=1. inverse=0.
% 7.29/7.57  
% 7.29/7.57  ============================== end of process initial clauses ========
% 7.29/7.57  
% 7.29/7.57  ============================== CLAUSES FOR SEARCH ====================
% 7.29/7.57  
% 7.29/7.57  ============================== end of clauses for search =============
% 7.29/7.57  
% 7.29/7.57  ============================== SEARCH ================================
% 7.29/7.57  
% 7.29/7.57  % Starting search at 0.01 seconds.
% 7.29/7.57  
% 7.29/7.57  Low Water (keep): wt=39.000, iters=3403
% 7.29/7.57  
% 7.29/7.57  Low Water (keep): wt=38.000, iters=3335
% 7.29/7.57  
% 7.29/7.57  Low Water (keep): wt=37.000, iters=3399
% 7.29/7.57  
% 7.29/7.57  Low Water (keep): wt=36.000, iters=3334
% 7.29/7.57  
% 7.29/7.57  Low Water (keep): wt=35.000, iters=3346
% 7.29/7.57  
% 7.29/7.57  Low Water (keep): wt=34.000, iters=3333
% 7.29/7.57  
% 7.29/7.57  Low Water (keep): wt=33.000, iters=3351
% 7.29/7.57  
% 7.29/7.57  Low Water (keep): wt=32.000, iters=3363
% 7.29/7.57  
% 7.29/7.57  Low Water (keep): wt=31.000, iters=3335
% 7.29/7.57  
% 7.29/7.57  Low Water (keep): wt=30.000, iters=3348
% 7.29/7.57  
% 7.29/7.57  Low Water (keep): wt=29.000, iters=3334
% 7.29/7.57  
% 7.29/7.57  Low Water (keep): wt=28.000, iters=3382
% 7.29/7.57  
% 7.29/7.57  Low Water (keep): wt=26.000, iters=3334
% 7.29/7.57  
% 7.29/7.57  Low Water (keep): wt=25.000, iters=3372
% 7.29/7.57  
% 7.29/7.57  Low Water (keep): wt=21.000, iters=3399
% 7.29/7.57  
% 7.29/7.57  Low Water (keep): wt=20.000, iters=3395
% 7.29/7.57  
% 7.29/7.57  Low Water (keep): wt=19.000, iters=3334
% 7.29/7.57  
% 7.29/7.57  Low Water (keep): wt=18.000, iters=3528
% 7.29/7.57  
% 7.29/7.57  Low Water (keep): wt=17.000, iters=3333
% 7.29/7.57  
% 7.29/7.57  Low Water (keep): wt=16.000, iters=3357
% 7.29/7.57  
% 7.29/7.57  ============================== PROOF =================================
% 7.29/7.57  % SZS status Unsatisfiable
% 7.29/7.57  % SZS output start Refutation
% 7.29/7.57  
% 7.29/7.57  % Proof 1 at 6.39 (+ 0.17) seconds.
% 7.29/7.57  % Length of proof is 127.
% 7.29/7.57  % Level of proof is 30.
% 7.29/7.57  % Maximum clause weight is 48.000.
% 7.29/7.57  % Given clauses 1565.
% 7.29/7.57  
% 7.29/7.57  1 multiply(identity,A) = A # label(left_identity) # label(axiom).  [assumption].
% 7.29/7.57  2 multiply(sk_c6,sk_c7) = sk_c5 # label(prove_this_1) # label(negated_conjecture).  [assumption].
% 7.29/7.57  3 sk_c5 = multiply(sk_c6,sk_c7).  [copy(2),flip(a)].
% 7.29/7.57  4 multiply(inverse(A),A) = identity # label(left_inverse) # label(axiom).  [assumption].
% 7.29/7.57  5 inverse(sk_c1) = sk_c6 | inverse(sk_c6) = sk_c5 # label(prove_this_7) # label(negated_conjecture).  [assumption].
% 7.29/7.57  6 inverse(sk_c1) = sk_c6 | multiply(sk_c6,sk_c7) = inverse(sk_c6).  [copy(5),rewrite([3(7)]),flip(b)].
% 7.29/7.57  7 inverse(sk_c1) = sk_c6 | inverse(sk_c7) = sk_c5 # label(prove_this_8) # label(negated_conjecture).  [assumption].
% 7.29/7.57  8 inverse(sk_c1) = sk_c6 | multiply(sk_c6,sk_c7) = inverse(sk_c7).  [copy(7),rewrite([3(7)]),flip(b)].
% 7.29/7.57  9 inverse(sk_c1) = sk_c6 | inverse(sk_c3) = sk_c6 # label(prove_this_11) # label(negated_conjecture).  [assumption].
% 7.29/7.57  10 inverse(sk_c2) = sk_c6 | inverse(sk_c6) = sk_c5 # label(prove_this_12) # label(negated_conjecture).  [assumption].
% 7.29/7.57  11 inverse(sk_c2) = sk_c6 | multiply(sk_c6,sk_c7) = inverse(sk_c6).  [copy(10),rewrite([3(7)]),flip(b)].
% 7.29/7.57  12 inverse(sk_c2) = sk_c6 | inverse(sk_c7) = sk_c5 # label(prove_this_13) # label(negated_conjecture).  [assumption].
% 7.29/7.57  13 inverse(sk_c2) = sk_c6 | multiply(sk_c6,sk_c7) = inverse(sk_c7).  [copy(12),rewrite([3(7)]),flip(b)].
% 7.29/7.57  15 multiply(sk_c1,sk_c6) = sk_c7 | inverse(sk_c6) = sk_c5 # label(prove_this_2) # label(negated_conjecture).  [assumption].
% 7.29/7.57  16 multiply(sk_c1,sk_c6) = sk_c7 | multiply(sk_c6,sk_c7) = inverse(sk_c6).  [copy(15),rewrite([3(8)]),flip(b)].
% 7.29/7.57  17 multiply(sk_c1,sk_c6) = sk_c7 | inverse(sk_c7) = sk_c5 # label(prove_this_3) # label(negated_conjecture).  [assumption].
% 7.29/7.57  18 multiply(sk_c1,sk_c6) = sk_c7 | multiply(sk_c6,sk_c7) = inverse(sk_c7).  [copy(17),rewrite([3(8)]),flip(b)].
% 7.29/7.57  19 multiply(sk_c1,sk_c6) = sk_c7 | inverse(sk_c3) = sk_c6 # label(prove_this_6) # label(negated_conjecture).  [assumption].
% 7.29/7.57  20 inverse(sk_c1) = sk_c6 | multiply(sk_c6,sk_c4) = sk_c5 # label(prove_this_9) # label(negated_conjecture).  [assumption].
% 7.29/7.57  21 inverse(sk_c1) = sk_c6 | multiply(sk_c6,sk_c4) = multiply(sk_c6,sk_c7).  [copy(20),rewrite([3(8)])].
% 7.29/7.57  22 inverse(sk_c1) = sk_c6 | multiply(sk_c3,sk_c6) = sk_c4 # label(prove_this_10) # label(negated_conjecture).  [assumption].
% 7.29/7.57  28 multiply(sk_c2,sk_c5) = sk_c6 | inverse(sk_c7) = sk_c5 # label(prove_this_18) # label(negated_conjecture).  [assumption].
% 7.29/7.57  29 multiply(sk_c2,multiply(sk_c6,sk_c7)) = sk_c6 | multiply(sk_c6,sk_c7) = inverse(sk_c7).  [copy(28),rewrite([3(2),3(10)]),flip(b)].
% 7.29/7.57  32 multiply(sk_c1,sk_c6) = sk_c7 | multiply(sk_c6,sk_c4) = sk_c5 # label(prove_this_4) # label(negated_conjecture).  [assumption].
% 7.29/7.57  33 multiply(sk_c1,sk_c6) = sk_c7 | multiply(sk_c6,sk_c4) = multiply(sk_c6,sk_c7).  [copy(32),rewrite([3(9)])].
% 7.29/7.57  34 multiply(sk_c1,sk_c6) = sk_c7 | multiply(sk_c3,sk_c6) = sk_c4 # label(prove_this_5) # label(negated_conjecture).  [assumption].
% 7.29/7.57  39 multiply(multiply(A,B),C) = multiply(A,multiply(B,C)) # label(associativity) # label(axiom).  [assumption].
% 7.29/7.57  40 multiply(sk_c6,sk_c7) != sk_c5 | multiply(A,sk_c6) != sk_c7 | inverse(A) != sk_c6 | inverse(B) != sk_c6 | multiply(B,sk_c5) != sk_c6 | inverse(sk_c6) != sk_c5 | inverse(sk_c7) != sk_c5 | multiply(sk_c6,C) != sk_c5 | multiply(D,sk_c6) != C | inverse(D) != sk_c6 # label(prove_this_22) # label(negated_conjecture).  [assumption].
% 7.29/7.57  41 multiply(A,sk_c6) != sk_c7 | inverse(A) != sk_c6 | inverse(B) != sk_c6 | multiply(B,multiply(sk_c6,sk_c7)) != sk_c6 | multiply(sk_c6,sk_c7) != inverse(sk_c6) | multiply(sk_c6,sk_c7) != inverse(sk_c7) | multiply(sk_c6,sk_c7) != multiply(sk_c6,C) | multiply(D,sk_c6) != C | inverse(D) != sk_c6.  [copy(40),rewrite([3(4),3(18),3(26),3(32),3(38)]),flip(f),flip(g),flip(h),xx(a)].
% 7.29/7.57  42 multiply(A,sk_c6) != sk_c7 | inverse(A) != sk_c6 | inverse(B) != sk_c6 | multiply(B,multiply(sk_c6,sk_c7)) != sk_c6 | multiply(sk_c6,sk_c7) != inverse(sk_c6) | multiply(sk_c6,sk_c7) != inverse(sk_c7).  [factor(41,a,h),xx(g),merge(g)].
% 7.29/7.57  44 inverse(sk_c1) = sk_c6 | inverse(sk_c7) = inverse(sk_c6).  [para(8(b,1),6(b,1)),merge(b)].
% 7.29/7.57  45 inverse(sk_c1) = sk_c6 | multiply(sk_c6,sk_c3) = identity.  [para(9(b,1),4(a,1,1))].
% 7.29/7.57  46 inverse(sk_c2) = sk_c6 | inverse(sk_c7) = inverse(sk_c6).  [para(13(b,1),11(b,1)),merge(b)].
% 7.29/7.57  52 multiply(inverse(A),multiply(A,B)) = B.  [para(4(a,1),39(a,1,1)),rewrite([1(2)]),flip(a)].
% 7.29/7.57  63 multiply(sk_c6,sk_c7) = inverse(sk_c7) | multiply(sk_c1,multiply(sk_c6,A)) = multiply(sk_c7,A).  [para(18(a,1),39(a,1,1)),flip(b)].
% 7.29/7.57  70 inverse(sk_c1) = sk_c6 | multiply(A,multiply(sk_c3,sk_c6)) = multiply(A,sk_c4).  [para(22(b,1),39(a,2,2)),rewrite([39(8)])].
% 7.29/7.57  81 multiply(sk_c6,sk_c4) = multiply(sk_c6,sk_c7) | multiply(sk_c1,multiply(sk_c6,A)) = multiply(sk_c7,A).  [para(33(a,1),39(a,1,1)),flip(b)].
% 7.29/7.57  84 multiply(sk_c1,sk_c6) = sk_c7 | multiply(A,multiply(sk_c3,sk_c6)) = multiply(A,sk_c4).  [para(34(b,1),39(a,2,2)),rewrite([39(9)])].
% 7.29/7.57  146 multiply(inverse(inverse(A)),identity) = A.  [para(4(a,1),52(a,1,2))].
% 7.29/7.57  154 multiply(sk_c6,sk_c7) = inverse(sk_c7) | multiply(inverse(sk_c1),sk_c7) = sk_c6.  [para(18(a,1),52(a,1,2))].
% 7.29/7.57  167 multiply(inverse(multiply(A,B)),multiply(A,multiply(B,C))) = C.  [para(39(a,1),52(a,1,2))].
% 7.29/7.57  168 multiply(A,sk_c6) != sk_c7 | inverse(A) != sk_c6 | inverse(inverse(sk_c6)) != sk_c6 | sk_c7 != sk_c6 | multiply(sk_c6,sk_c7) != inverse(sk_c6) | multiply(sk_c6,sk_c7) != inverse(sk_c7).  [para(52(a,1),42(d,1))].
% 7.29/7.57  171 multiply(inverse(inverse(A)),B) = multiply(A,B).  [para(52(a,1),52(a,1,2))].
% 7.29/7.57  172 multiply(A,identity) = A.  [back_rewrite(146),rewrite([171(4)])].
% 7.29/7.57  173 inverse(identity) = identity.  [para(172(a,1),4(a,1))].
% 7.29/7.57  200 inverse(sk_c1) = sk_c6 | inverse(sk_c6) = sk_c3.  [para(45(b,1),52(a,1,2)),rewrite([172(8)])].
% 7.29/7.57  210 multiply(A,multiply(B,sk_c6)) != sk_c7 | inverse(multiply(A,B)) != sk_c6 | inverse(inverse(sk_c6)) != sk_c6 | sk_c7 != sk_c6 | multiply(sk_c6,sk_c7) != inverse(sk_c6) | multiply(sk_c6,sk_c7) != inverse(sk_c7).  [para(39(a,1),168(a,1))].
% 7.29/7.57  304 multiply(A,inverse(A)) = identity.  [para(171(a,1),4(a,1))].
% 7.29/7.57  312 inverse(inverse(A)) = A.  [para(171(a,1),172(a,1)),rewrite([172(2)]),flip(a)].
% 7.29/7.57  353 multiply(A,multiply(B,sk_c6)) != sk_c7 | inverse(multiply(A,B)) != sk_c6 | sk_c7 != sk_c6 | multiply(sk_c6,sk_c7) != inverse(sk_c6) | multiply(sk_c6,sk_c7) != inverse(sk_c7).  [back_rewrite(210),rewrite([312(12)]),xx(c)].
% 7.29/7.57  368 inverse(sk_c1) = sk_c6 | sk_c7 = sk_c6.  [para(44(b,1),312(a,1,1)),rewrite([312(7)]),flip(b)].
% 7.29/7.57  369 inverse(sk_c6) = sk_c3 | inverse(sk_c6) = sk_c1.  [para(200(a,1),312(a,1,1))].
% 7.29/7.57  370 inverse(sk_c2) = sk_c6 | sk_c7 = sk_c6.  [para(46(b,1),312(a,1,1)),rewrite([312(7)]),flip(b)].
% 7.29/7.57  375 inverse(sk_c1) = sk_c6 | multiply(sk_c3,sk_c6) = identity.  [para(9(b,1),304(a,1,2))].
% 7.29/7.57  388 sk_c7 = sk_c6 | inverse(sk_c6) = sk_c2.  [para(370(a,1),312(a,1,1))].
% 7.29/7.57  394 sk_c7 != A | inverse(multiply(A,inverse(sk_c6))) != sk_c6 | sk_c7 != sk_c6 | multiply(sk_c6,sk_c7) != inverse(sk_c6) | multiply(sk_c6,sk_c7) != inverse(sk_c7).  [para(4(a,1),353(a,1,2)),rewrite([172(2)]),flip(a)].
% 7.29/7.57  408 sk_c7 = sk_c6 | multiply(sk_c2,multiply(sk_c6,A)) = A.  [para(388(b,1),52(a,1,1))].
% 7.29/7.57  2001 multiply(sk_c6,sk_c7) = inverse(sk_c7) | multiply(sk_c1,multiply(sk_c6,inverse(sk_c7))) = identity.  [para(304(a,1),63(b,2))].
% 7.29/7.57  3729 inverse(sk_c1) = sk_c6 | multiply(A,sk_c4) = A.  [para(375(b,1),70(b,1,2)),rewrite([172(10)]),flip(c),merge(b)].
% 7.29/7.57  4115 inverse(sk_c1) = sk_c6 | multiply(sk_c6,sk_c7) = sk_c6.  [para(3729(b,1),21(b,1)),flip(c),merge(b)].
% 7.29/7.57  4869 inverse(sk_c1) = sk_c6 | identity = sk_c7.  [para(4115(b,1),52(a,1,2)),rewrite([4(8)])].
% 7.29/7.57  4889 identity = sk_c7 | inverse(sk_c6) = sk_c1.  [para(4869(a,1),312(a,1,1))].
% 7.29/7.57  4890 identity = sk_c7 | multiply(sk_c1,sk_c6) = identity.  [para(4869(a,1),304(a,1,2))].
% 7.29/7.57  5040 identity = sk_c7 | multiply(sk_c6,sk_c7) = inverse(sk_c6).  [para(4890(b,1),16(a,1)),merge(b)].
% 7.29/7.57  5041 identity = sk_c7 | multiply(sk_c6,sk_c7) = inverse(sk_c7).  [para(4890(b,1),18(a,1)),merge(b)].
% 7.29/7.57  5042 identity = sk_c7 | inverse(sk_c3) = sk_c6.  [para(4890(b,1),19(a,1)),merge(b)].
% 7.29/7.57  5055 identity = sk_c7 | inverse(sk_c6) = sk_c3.  [para(5042(b,1),312(a,1,1))].
% 7.29/7.57  5097 identity = sk_c7 | sk_c3 = sk_c1.  [para(5055(b,1),4889(b,1)),merge(b)].
% 7.29/7.57  5102 sk_c3 = sk_c1 | multiply(sk_c7,A) = A.  [para(5097(a,1),1(a,1,1))].
% 7.29/7.57  5104 sk_c3 = sk_c1 | inverse(sk_c7) = identity.  [para(5097(a,1),173(a,1,1))].
% 7.29/7.57  5247 sk_c3 = sk_c1 | inverse(sk_c7) = sk_c7.  [para(5097(a,1),5104(b,2)),merge(b)].
% 7.29/7.57  5248 sk_c3 = sk_c1 | multiply(sk_c7,sk_c7) = identity.  [para(5247(b,1),4(a,1,1))].
% 7.29/7.57  5457 sk_c3 = sk_c1 | sk_c7 != sk_c6 | multiply(sk_c6,sk_c7) != inverse(sk_c6) | multiply(sk_c6,sk_c7) != inverse(sk_c7).  [para(5102(b,1),394(b,1,1)),rewrite([312(9)]),xx(b),xx(c)].
% 7.29/7.57  5945 multiply(sk_c6,sk_c4) = multiply(sk_c6,sk_c7) | multiply(sk_c1,multiply(sk_c6,inverse(sk_c7))) = identity.  [para(304(a,1),81(b,2))].
% 7.29/7.57  6433 multiply(sk_c1,sk_c6) = sk_c7 | multiply(inverse(multiply(sk_c3,sk_c6)),sk_c4) = identity.  [para(84(b,1),4(a,1))].
% 7.29/7.57  7000 identity = sk_c7 | multiply(sk_c6,sk_c7) = sk_c1.  [para(4889(b,1),5040(b,2)),merge(b)].
% 7.29/7.57  7109 identity = sk_c7 | inverse(sk_c7) = sk_c1.  [para(5041(b,1),7000(b,1)),merge(b)].
% 7.29/7.57  7114 identity = sk_c7 | inverse(sk_c1) = sk_c7.  [para(7109(b,1),312(a,1,1))].
% 7.29/7.57  7160 identity = sk_c7 | sk_c7 = sk_c6.  [para(7114(b,1),368(a,1)),merge(c)].
% 7.29/7.57  7162 sk_c7 = sk_c6 | multiply(A,sk_c7) = A.  [para(7160(a,1),172(a,1,2))].
% 7.29/7.57  7163 sk_c7 = sk_c6 | inverse(sk_c7) = identity.  [para(7160(a,1),173(a,1,1))].
% 7.29/7.57  7183 sk_c7 = sk_c6 | inverse(sk_c7) = sk_c7.  [para(7160(a,1),7163(b,2)),merge(b)].
% 7.29/7.57  9459 multiply(inverse(multiply(A,B)),A) = inverse(B).  [para(304(a,1),167(a,1,2,2)),rewrite([172(4)])].
% 7.29/7.57  9590 multiply(sk_c6,sk_c7) = inverse(sk_c7) | multiply(inverse(sk_c6),multiply(inverse(sk_c1),multiply(sk_c7,A))) = A.  [para(154(b,1),167(a,1,1,1))].
% 7.29/7.57  10138 multiply(A,sk_c6) != sk_c7 | inverse(A) != sk_c6 | multiply(sk_c6,multiply(sk_c7,B)) != sk_c6 | inverse(B) != sk_c6 | multiply(sk_c6,sk_c7) != inverse(sk_c6) | multiply(sk_c6,sk_c7) != inverse(sk_c7).  [para(9459(a,1),42(d,1)),rewrite([39(11),312(13)])].
% 7.29/7.57  10140 inverse(multiply(A,B)) = multiply(inverse(B),inverse(A)).  [para(52(a,1),9459(a,1,1,1)),flip(a)].
% 7.29/7.57  10147 multiply(inverse(A),sk_c6) != sk_c7 | sk_c6 != A | sk_c7 != sk_c6 | multiply(sk_c6,sk_c7) != inverse(sk_c6) | multiply(sk_c6,sk_c7) != inverse(sk_c7).  [para(9459(a,1),394(b,1,1)),rewrite([10140(5),312(5),312(7)]),flip(a),flip(b)].
% 7.29/7.57  10464 multiply(A,sk_c6) != sk_c7 | inverse(A) != sk_c6 | multiply(sk_c6,multiply(sk_c7,A)) != sk_c6 | multiply(sk_c6,sk_c7) != inverse(sk_c6) | multiply(sk_c6,sk_c7) != inverse(sk_c7).  [factor(10138,b,d)].
% 7.29/7.57  10567 multiply(sk_c1,sk_c6) = sk_c7 | multiply(inverse(sk_c6),multiply(inverse(sk_c3),sk_c4)) = identity.  [back_rewrite(6433),rewrite([10140(9),39(12)])].
% 7.29/7.57  10792 multiply(inverse(sk_c7),sk_c6) != sk_c7 | sk_c7 != sk_c6 | multiply(sk_c6,sk_c7) != inverse(sk_c6) | multiply(sk_c6,sk_c7) != inverse(sk_c7).  [para(304(a,1),10464(c,1,2)),rewrite([312(9),172(12)]),xx(c)].
% 7.29/7.57  11944 sk_c7 = sk_c6 | multiply(sk_c6,sk_c7) = inverse(sk_c7).  [para(408(b,1),29(a,1)),merge(b)].
% 7.29/7.57  12379 sk_c7 = sk_c6 | inverse(sk_c7) = sk_c6.  [para(11944(b,1),7162(b,1)),merge(b)].
% 7.29/7.57  12397 sk_c7 = sk_c6.  [para(12379(b,1),7183(b,1)),flip(c),merge(b),merge(c)].
% 7.29/7.57  12891 identity != sk_c6 | multiply(sk_c6,sk_c6) != inverse(sk_c6).  [back_rewrite(10792),rewrite([12397(1),4(4),12397(2),12397(4),12397(8),12397(14),12397(16)]),xx(b),merge(c)].
% 7.29/7.57  12984 multiply(sk_c1,sk_c6) = sk_c6 | multiply(inverse(sk_c6),multiply(inverse(sk_c3),sk_c4)) = identity.  [back_rewrite(10567),rewrite([12397(4)])].
% 7.29/7.57  13150 multiply(inverse(A),sk_c6) != sk_c6 | sk_c6 != A | multiply(sk_c6,sk_c6) != inverse(sk_c6).  [back_rewrite(10147),rewrite([12397(4),12397(8),12397(12),12397(18),12397(20)]),xx(c),merge(d)].
% 7.29/7.57  13297 multiply(sk_c6,sk_c6) = inverse(sk_c6) | multiply(inverse(sk_c6),multiply(inverse(sk_c1),multiply(sk_c6,A))) = A.  [back_rewrite(9590),rewrite([12397(2),12397(4),12397(11)])].
% 7.29/7.57  14060 multiply(sk_c6,sk_c4) = multiply(sk_c6,sk_c6) | identity = sk_c1.  [back_rewrite(5945),rewrite([12397(5),12397(10),304(12),172(10)]),flip(b)].
% 7.29/7.57  14115 sk_c3 = sk_c1 | multiply(sk_c6,sk_c6) != inverse(sk_c6).  [back_rewrite(5457),rewrite([12397(4),12397(8),12397(14),12397(16)]),xx(b),merge(c)].
% 7.29/7.57  14155 sk_c3 = sk_c1 | multiply(sk_c6,sk_c6) = identity.  [back_rewrite(5248),rewrite([12397(4),12397(5)])].
% 7.29/7.57  14195 sk_c3 = sk_c1 | inverse(sk_c6) = identity.  [back_rewrite(5104),rewrite([12397(4)])].
% 7.29/7.57  14345 multiply(sk_c6,sk_c6) = inverse(sk_c6) | identity = sk_c1.  [back_rewrite(2001),rewrite([12397(2),12397(4),12397(9),304(11),172(9)]),flip(b)].
% 7.29/7.57  18997 sk_c3 = sk_c1 | inverse(sk_c6) != identity.  [para(14155(b,1),14115(b,1)),flip(c),merge(b)].
% 7.29/7.57  19000 sk_c3 = sk_c1.  [resolve(18997,b,14195,b),merge(b)].
% 7.29/7.57  19600 multiply(sk_c1,sk_c6) = sk_c6 | multiply(inverse(sk_c6),multiply(inverse(sk_c1),sk_c4)) = identity.  [back_rewrite(12984),rewrite([19000(8)])].
% 7.29/7.57  19754 inverse(sk_c6) = sk_c1.  [back_rewrite(369),rewrite([19000(3)]),merge(b)].
% 7.29/7.57  19762 inverse(sk_c1) = sk_c6.  [back_rewrite(9),rewrite([19000(5)]),merge(b)].
% 7.29/7.57  19765 multiply(sk_c1,sk_c6) = sk_c6 | multiply(sk_c1,multiply(sk_c6,sk_c4)) = identity.  [back_rewrite(19600),rewrite([19754(7),19762(8)])].
% 7.29/7.57  21235 multiply(sk_c6,sk_c6) = sk_c1 | identity = sk_c1.  [back_rewrite(14345),rewrite([19754(5)])].
% 7.29/7.57  21253 multiply(sk_c6,sk_c6) = sk_c1 | multiply(sk_c1,multiply(sk_c6,multiply(sk_c6,A))) = A.  [back_rewrite(13297),rewrite([19754(5),19754(7),19762(8)])].
% 7.29/7.57  21261 multiply(inverse(A),sk_c6) != sk_c6 | sk_c6 != A | multiply(sk_c6,sk_c6) != sk_c1.  [back_rewrite(13150),rewrite([19754(12)])].
% 7.29/7.57  21289 identity != sk_c6 | multiply(sk_c6,sk_c6) != sk_c1.  [back_rewrite(12891),rewrite([19754(8)])].
% 7.29/7.57  21323 multiply(sk_c1,sk_c6) = identity.  [para(19754(a,1),4(a,1,1))].
% 7.29/7.57  21324 multiply(sk_c1,multiply(sk_c6,A)) = A.  [para(19754(a,1),52(a,1,1))].
% 7.29/7.57  21343 identity = sk_c6 | identity = sk_c4.  [back_rewrite(19765),rewrite([21323(3),21324(8)]),flip(b)].
% 7.29/7.57  21355 multiply(sk_c6,sk_c6) = sk_c1 | multiply(sk_c6,A) = A.  [back_rewrite(21253),rewrite([21324(11)])].
% 7.29/7.57  21358 multiply(sk_c6,sk_c6) != sk_c6 | sk_c1 != sk_c6 | multiply(sk_c6,sk_c6) != sk_c1.  [para(19762(a,1),21261(a,1,1)),flip(b)].
% 7.29/7.57  21379 identity = sk_c1 | identity != sk_c6.  [resolve(21235,a,21289,b)].
% 7.29/7.57  21440 identity = sk_c1 | sk_c4 = sk_c6.  [para(14060(a,1),52(a,1,2)),rewrite([19754(5),21324(8)]),flip(b)].
% 7.29/7.57  21449 sk_c4 = sk_c6 | identity = sk_c6.  [para(21440(a,1),173(a,1,1)),rewrite([19762(5)]),flip(b)].
% 7.29/7.57  21471 sk_c4 = sk_c6 | sk_c1 = sk_c6.  [para(21449(b,1),21440(a,1)),flip(b),merge(c)].
% 7.29/7.57  21473 sk_c1 = sk_c6 | identity = sk_c6.  [para(21471(a,1),21343(b,2)),merge(c)].
% 7.29/7.57  21474 sk_c1 = sk_c6 | identity = sk_c1.  [resolve(21473,b,21379,b)].
% 7.29/7.57  21479 sk_c1 = sk_c6.  [para(21474(b,1),21473(b,1)),merge(b),merge(c)].
% 7.29/7.57  21529 multiply(sk_c6,sk_c6) != sk_c6.  [back_rewrite(21358),rewrite([21479(6),21479(12)]),xx(b),merge(b)].
% 7.29/7.57  21531 multiply(sk_c6,A) = A.  [back_rewrite(21355),rewrite([21479(4)]),unit_del(a,21529)].
% 7.29/7.57  21532 $F.  [resolve(21531,a,21529,a)].
% 7.29/7.57  
% 7.29/7.57  % SZS output end Refutation
% 7.29/7.57  ============================== end of proof ==========================
% 7.29/7.57  
% 7.29/7.57  ============================== STATISTICS ============================
% 7.29/7.57  
% 7.29/7.57  Given=1565. Generated=266404. Kept=21515. proofs=1.
% 7.29/7.57  Usable=48. Sos=820. Demods=22. Limbo=52, Disabled=20619. Hints=0.
% 7.29/7.57  Megabytes=17.79.
% 7.29/7.57  User_CPU=6.39, System_CPU=0.17, Wall_clock=7.
% 7.29/7.57  
% 7.29/7.57  ============================== end of statistics =====================
% 7.29/7.57  
% 7.29/7.57  ============================== end of search =========================
% 7.29/7.57  
% 7.29/7.57  THEOREM PROVED
% 7.29/7.57  % SZS status Unsatisfiable
% 7.29/7.57  
% 7.29/7.57  Exiting with 1 proof.
% 7.29/7.57  
% 7.29/7.57  Process 3160 exit (max_proofs) Mon Jun 13 18:01:11 2022
% 7.29/7.57  Prover9 interrupted
%------------------------------------------------------------------------------