TSTP Solution File: GRP287-1 by Prover9---1109a

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Prover9---1109a
% Problem  : GRP287-1 : TPTP v8.1.0. Released v2.5.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : tptp2X_and_run_prover9 %d %s

% Computer : n019.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 11:18:29 EDT 2022

% Result   : Unsatisfiable 186.06s 186.37s
% Output   : Refutation 186.06s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.13  % Problem  : GRP287-1 : TPTP v8.1.0. Released v2.5.0.
% 0.14/0.14  % Command  : tptp2X_and_run_prover9 %d %s
% 0.14/0.35  % Computer : n019.cluster.edu
% 0.14/0.35  % Model    : x86_64 x86_64
% 0.14/0.35  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/0.35  % Memory   : 8042.1875MB
% 0.14/0.35  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.14/0.35  % CPULimit : 300
% 0.14/0.35  % WCLimit  : 600
% 0.14/0.35  % DateTime : Tue Jun 14 13:47:39 EDT 2022
% 0.21/0.36  % CPUTime  : 
% 186.06/186.37  ============================== Prover9 ===============================
% 186.06/186.37  Prover9 (32) version 2009-11A, November 2009.
% 186.06/186.37  Process 29716 was started by sandbox on n019.cluster.edu,
% 186.06/186.37  Tue Jun 14 13:47:40 2022
% 186.06/186.37  The command was "/export/starexec/sandbox/solver/bin/prover9 -t 300 -f /tmp/Prover9_29563_n019.cluster.edu".
% 186.06/186.37  ============================== end of head ===========================
% 186.06/186.37  
% 186.06/186.37  ============================== INPUT =================================
% 186.06/186.37  
% 186.06/186.37  % Reading from file /tmp/Prover9_29563_n019.cluster.edu
% 186.06/186.37  
% 186.06/186.37  set(prolog_style_variables).
% 186.06/186.37  set(auto2).
% 186.06/186.37      % set(auto2) -> set(auto).
% 186.06/186.37      % set(auto) -> set(auto_inference).
% 186.06/186.37      % set(auto) -> set(auto_setup).
% 186.06/186.37      % set(auto_setup) -> set(predicate_elim).
% 186.06/186.37      % set(auto_setup) -> assign(eq_defs, unfold).
% 186.06/186.37      % set(auto) -> set(auto_limits).
% 186.06/186.37      % set(auto_limits) -> assign(max_weight, "100.000").
% 186.06/186.37      % set(auto_limits) -> assign(sos_limit, 20000).
% 186.06/186.37      % set(auto) -> set(auto_denials).
% 186.06/186.37      % set(auto) -> set(auto_process).
% 186.06/186.37      % set(auto2) -> assign(new_constants, 1).
% 186.06/186.37      % set(auto2) -> assign(fold_denial_max, 3).
% 186.06/186.37      % set(auto2) -> assign(max_weight, "200.000").
% 186.06/186.37      % set(auto2) -> assign(max_hours, 1).
% 186.06/186.37      % assign(max_hours, 1) -> assign(max_seconds, 3600).
% 186.06/186.37      % set(auto2) -> assign(max_seconds, 0).
% 186.06/186.37      % set(auto2) -> assign(max_minutes, 5).
% 186.06/186.37      % assign(max_minutes, 5) -> assign(max_seconds, 300).
% 186.06/186.37      % set(auto2) -> set(sort_initial_sos).
% 186.06/186.37      % set(auto2) -> assign(sos_limit, -1).
% 186.06/186.37      % set(auto2) -> assign(lrs_ticks, 3000).
% 186.06/186.37      % set(auto2) -> assign(max_megs, 400).
% 186.06/186.37      % set(auto2) -> assign(stats, some).
% 186.06/186.37      % set(auto2) -> clear(echo_input).
% 186.06/186.37      % set(auto2) -> set(quiet).
% 186.06/186.37      % set(auto2) -> clear(print_initial_clauses).
% 186.06/186.37      % set(auto2) -> clear(print_given).
% 186.06/186.37  assign(lrs_ticks,-1).
% 186.06/186.37  assign(sos_limit,10000).
% 186.06/186.37  assign(order,kbo).
% 186.06/186.37  set(lex_order_vars).
% 186.06/186.37  clear(print_given).
% 186.06/186.37  
% 186.06/186.37  % formulas(sos).  % not echoed (29 formulas)
% 186.06/186.37  
% 186.06/186.37  ============================== end of input ==========================
% 186.06/186.37  
% 186.06/186.37  % From the command line: assign(max_seconds, 300).
% 186.06/186.37  
% 186.06/186.37  ============================== PROCESS NON-CLAUSAL FORMULAS ==========
% 186.06/186.37  
% 186.06/186.37  % Formulas that are not ordinary clauses:
% 186.06/186.37  
% 186.06/186.37  ============================== end of process non-clausal formulas ===
% 186.06/186.37  
% 186.06/186.37  ============================== PROCESS INITIAL CLAUSES ===============
% 186.06/186.37  
% 186.06/186.37  ============================== PREDICATE ELIMINATION =================
% 186.06/186.37  
% 186.06/186.37  ============================== end predicate elimination =============
% 186.06/186.37  
% 186.06/186.37  Auto_denials:  (non-Horn, no changes).
% 186.06/186.37  
% 186.06/186.37  Term ordering decisions:
% 186.06/186.37  
% 186.06/186.37  % Assigning unary symbol inverse kb_weight 0 and highest precedence (11).
% 186.06/186.37  Function symbol KB weights:  sk_c6=1. sk_c7=1. sk_c5=1. sk_c1=1. sk_c2=1. sk_c3=1. sk_c4=1. identity=1. multiply=1. inverse=0.
% 186.06/186.37  
% 186.06/186.37  ============================== end of process initial clauses ========
% 186.06/186.37  
% 186.06/186.37  ============================== CLAUSES FOR SEARCH ====================
% 186.06/186.37  
% 186.06/186.37  ============================== end of clauses for search =============
% 186.06/186.37  
% 186.06/186.37  ============================== SEARCH ================================
% 186.06/186.37  
% 186.06/186.37  % Starting search at 0.02 seconds.
% 186.06/186.37  
% 186.06/186.37  Low Water (keep): wt=40.000, iters=3456
% 186.06/186.37  
% 186.06/186.37  Low Water (keep): wt=38.000, iters=3406
% 186.06/186.37  
% 186.06/186.37  Low Water (keep): wt=37.000, iters=3350
% 186.06/186.37  
% 186.06/186.37  Low Water (keep): wt=36.000, iters=3417
% 186.06/186.37  
% 186.06/186.37  Low Water (keep): wt=35.000, iters=3351
% 186.06/186.37  
% 186.06/186.37  Low Water (keep): wt=34.000, iters=3334
% 186.06/186.37  
% 186.06/186.37  Low Water (keep): wt=33.000, iters=3497
% 186.06/186.37  
% 186.06/186.37  Low Water (keep): wt=32.000, iters=3359
% 186.06/186.37  
% 186.06/186.37  Low Water (keep): wt=31.000, iters=3354
% 186.06/186.37  
% 186.06/186.37  Low Water (keep): wt=30.000, iters=3348
% 186.06/186.37  
% 186.06/186.37  Low Water (keep): wt=29.000, iters=3481
% 186.06/186.37  
% 186.06/186.37  Low Water (keep): wt=28.000, iters=3475
% 186.06/186.37  
% 186.06/186.37  Low Water (keep): wt=26.000, iters=3367
% 186.06/186.37  
% 186.06/186.37  Low Water (keep): wt=25.000, iters=3342
% 186.06/186.37  
% 186.06/186.37  Low Water (keep): wt=24.000, iters=3458
% 186.06/186.37  
% 186.06/186.37  Low Water (keep): wt=17.000, iters=3344
% 186.06/186.37  
% 186.06/186.37  Low Water (keep): wt=16.000, iters=3335
% 186.06/186.37  
% 186.06/186.37  Low Water (keep): wt=15.000, iters=3354
% 186.06/186.37  
% 186.06/186.37  Low Water (keep): wt=14.000, iters=3336
% 186.06/186.37  
% 186.06/186.37  Low Water (keep): wt=13.000, iters=3334
% 186.06/186.37  
% 186.06/186.37  Low Water (displace): id=4242, wt=48.000
% 186.06/186.37  
% 186.06/186.37  Low Water (displace): id=18154, wt=12.000
% 186.06/186.37  
% 186.06/186.37  Low Water (displace): id=18901, wt=11.000
% 186.06/186.37  
% 186.06/186.37  Low Water (keep): wt=12.000, iters=3335
% 186.06/186.37  
% 186.06/186.37  Low Water (keep): wt=11.000, iters=3348
% 186.06/186.37  
% 186.06/186.37  Low Water (displace): id=33795, wt=10.000
% 186.06/186.37  
% 186.06/186.37  ============================== PROOF =================================
% 186.06/186.37  % SZS status Unsatisfiable
% 186.06/186.37  % SZS output start Refutation
% 186.06/186.37  
% 186.06/186.37  % Proof 1 at 180.72 (+ 4.59) seconds.
% 186.06/186.37  % Length of proof is 160.
% 186.06/186.37  % Level of proof is 33.
% 186.06/186.37  % Maximum clause weight is 52.000.
% 186.06/186.37  % Given clauses 8667.
% 186.06/186.37  
% 186.06/186.37  1 multiply(identity,A) = A # label(left_identity) # label(axiom).  [assumption].
% 186.06/186.37  2 multiply(inverse(A),A) = identity # label(left_inverse) # label(axiom).  [assumption].
% 186.06/186.37  3 inverse(sk_c1) = sk_c7 | inverse(sk_c3) = sk_c6 # label(prove_this_13) # label(negated_conjecture).  [assumption].
% 186.06/186.37  4 inverse(sk_c1) = sk_c7 | inverse(sk_c4) = sk_c6 # label(prove_this_14) # label(negated_conjecture).  [assumption].
% 186.06/186.37  5 inverse(sk_c2) = sk_c6 | inverse(sk_c3) = sk_c6 # label(prove_this_23) # label(negated_conjecture).  [assumption].
% 186.06/186.37  6 inverse(sk_c2) = sk_c6 | inverse(sk_c4) = sk_c6 # label(prove_this_24) # label(negated_conjecture).  [assumption].
% 186.06/186.37  7 multiply(sk_c7,sk_c6) = sk_c5 | inverse(sk_c3) = sk_c6 # label(prove_this_3) # label(negated_conjecture).  [assumption].
% 186.06/186.37  9 multiply(sk_c1,sk_c7) = sk_c6 | inverse(sk_c3) = sk_c6 # label(prove_this_8) # label(negated_conjecture).  [assumption].
% 186.06/186.37  10 multiply(sk_c1,sk_c7) = sk_c6 | inverse(sk_c4) = sk_c6 # label(prove_this_9) # label(negated_conjecture).  [assumption].
% 186.06/186.37  11 inverse(sk_c1) = sk_c7 | multiply(sk_c6,sk_c7) = sk_c5 # label(prove_this_11) # label(negated_conjecture).  [assumption].
% 186.06/186.37  12 inverse(sk_c1) = sk_c7 | multiply(sk_c3,sk_c6) = sk_c7 # label(prove_this_12) # label(negated_conjecture).  [assumption].
% 186.06/186.37  13 inverse(sk_c1) = sk_c7 | multiply(sk_c4,sk_c5) = sk_c6 # label(prove_this_15) # label(negated_conjecture).  [assumption].
% 186.06/186.37  14 multiply(sk_c2,sk_c6) = sk_c5 | inverse(sk_c3) = sk_c6 # label(prove_this_18) # label(negated_conjecture).  [assumption].
% 186.06/186.37  16 inverse(sk_c2) = sk_c6 | multiply(sk_c6,sk_c7) = sk_c5 # label(prove_this_21) # label(negated_conjecture).  [assumption].
% 186.06/186.37  17 inverse(sk_c2) = sk_c6 | multiply(sk_c3,sk_c6) = sk_c7 # label(prove_this_22) # label(negated_conjecture).  [assumption].
% 186.06/186.37  18 inverse(sk_c2) = sk_c6 | multiply(sk_c4,sk_c5) = sk_c6 # label(prove_this_25) # label(negated_conjecture).  [assumption].
% 186.06/186.37  19 multiply(sk_c7,sk_c6) = sk_c5 | multiply(sk_c6,sk_c7) = sk_c5 # label(prove_this_1) # label(negated_conjecture).  [assumption].
% 186.06/186.37  22 multiply(sk_c1,sk_c7) = sk_c6 | multiply(sk_c6,sk_c7) = sk_c5 # label(prove_this_6) # label(negated_conjecture).  [assumption].
% 186.06/186.37  23 multiply(sk_c1,sk_c7) = sk_c6 | multiply(sk_c3,sk_c6) = sk_c7 # label(prove_this_7) # label(negated_conjecture).  [assumption].
% 186.06/186.37  25 multiply(sk_c2,sk_c6) = sk_c5 | multiply(sk_c6,sk_c7) = sk_c5 # label(prove_this_16) # label(negated_conjecture).  [assumption].
% 186.06/186.37  26 multiply(sk_c2,sk_c6) = sk_c5 | multiply(sk_c3,sk_c6) = sk_c7 # label(prove_this_17) # label(negated_conjecture).  [assumption].
% 186.06/186.37  27 multiply(sk_c2,sk_c6) = sk_c5 | multiply(sk_c4,sk_c5) = sk_c6 # label(prove_this_20) # label(negated_conjecture).  [assumption].
% 186.06/186.37  28 multiply(multiply(A,B),C) = multiply(A,multiply(B,C)) # label(associativity) # label(axiom).  [assumption].
% 186.06/186.37  29 multiply(sk_c7,sk_c6) != sk_c5 | multiply(A,sk_c7) != sk_c6 | inverse(A) != sk_c7 | multiply(B,sk_c6) != sk_c5 | inverse(B) != sk_c6 | multiply(sk_c6,sk_c7) != sk_c5 | multiply(C,sk_c6) != sk_c7 | inverse(C) != sk_c6 | inverse(D) != sk_c6 | multiply(D,sk_c5) != sk_c6 # label(prove_this_26) # label(negated_conjecture).  [assumption].
% 186.06/186.37  39 inverse(sk_c1) = sk_c7 | multiply(sk_c6,sk_c3) = identity.  [para(3(b,1),2(a,1,1))].
% 186.06/186.37  40 inverse(sk_c1) = sk_c7 | multiply(sk_c6,sk_c4) = identity.  [para(4(b,1),2(a,1,1))].
% 186.06/186.37  41 inverse(sk_c2) = sk_c6 | multiply(sk_c6,sk_c3) = identity.  [para(5(b,1),2(a,1,1))].
% 186.06/186.37  42 inverse(sk_c2) = sk_c6 | multiply(sk_c6,sk_c4) = identity.  [para(6(b,1),2(a,1,1))].
% 186.06/186.37  43 multiply(inverse(A),multiply(A,B)) = B.  [para(2(a,1),28(a,1,1)),rewrite([1(2)]),flip(a)].
% 186.06/186.37  49 inverse(sk_c3) = sk_c6 | multiply(A,multiply(sk_c1,sk_c7)) = multiply(A,sk_c6).  [para(9(a,1),28(a,2,2)),rewrite([28(8)])].
% 186.06/186.37  53 inverse(sk_c1) = sk_c7 | multiply(A,multiply(sk_c6,sk_c7)) = multiply(A,sk_c5).  [para(11(b,1),28(a,2,2)),rewrite([28(8)])].
% 186.06/186.37  55 inverse(sk_c1) = sk_c7 | multiply(A,multiply(sk_c3,sk_c6)) = multiply(A,sk_c7).  [para(12(b,1),28(a,2,2)),rewrite([28(8)])].
% 186.06/186.37  56 inverse(sk_c1) = sk_c7 | multiply(sk_c4,multiply(sk_c5,A)) = multiply(sk_c6,A).  [para(13(b,1),28(a,1,1)),flip(b)].
% 186.06/186.37  58 inverse(sk_c3) = sk_c6 | multiply(sk_c2,multiply(sk_c6,A)) = multiply(sk_c5,A).  [para(14(a,1),28(a,1,1)),flip(b)].
% 186.06/186.37  65 inverse(sk_c2) = sk_c6 | multiply(A,multiply(sk_c3,sk_c6)) = multiply(A,sk_c7).  [para(17(b,1),28(a,2,2)),rewrite([28(8)])].
% 186.06/186.37  66 inverse(sk_c2) = sk_c6 | multiply(sk_c4,multiply(sk_c5,A)) = multiply(sk_c6,A).  [para(18(b,1),28(a,1,1)),flip(b)].
% 186.06/186.37  69 multiply(sk_c6,sk_c7) = sk_c5 | multiply(A,multiply(sk_c7,sk_c6)) = multiply(A,sk_c5).  [para(19(a,1),28(a,2,2)),rewrite([28(9)])].
% 186.06/186.37  106 multiply(sk_c7,sk_c6) != sk_c5 | multiply(A,sk_c7) != sk_c6 | inverse(A) != sk_c7 | multiply(B,sk_c6) != sk_c5 | inverse(B) != sk_c6 | multiply(sk_c6,sk_c7) != sk_c5 | identity != sk_c7 | inverse(inverse(sk_c6)) != sk_c6 | inverse(C) != sk_c6 | multiply(C,sk_c5) != sk_c6.  [para(2(a,1),29(g,1))].
% 186.06/186.37  331 inverse(sk_c1) = sk_c7 | multiply(A,multiply(sk_c6,sk_c3)) = multiply(A,identity).  [para(39(b,1),28(a,2,2)),rewrite([28(8)])].
% 186.06/186.37  346 multiply(inverse(inverse(A)),identity) = A.  [para(2(a,1),43(a,1,2))].
% 186.06/186.37  356 inverse(sk_c1) = sk_c7 | multiply(inverse(sk_c4),sk_c6) = sk_c5.  [para(13(b,1),43(a,1,2))].
% 186.06/186.37  359 inverse(sk_c2) = sk_c6 | multiply(inverse(sk_c6),sk_c5) = sk_c7.  [para(16(b,1),43(a,1,2))].
% 186.06/186.37  360 inverse(sk_c2) = sk_c6 | multiply(inverse(sk_c3),sk_c7) = sk_c6.  [para(17(b,1),43(a,1,2))].
% 186.06/186.37  361 inverse(sk_c2) = sk_c6 | multiply(inverse(sk_c4),sk_c6) = sk_c5.  [para(18(b,1),43(a,1,2))].
% 186.06/186.37  373 multiply(inverse(inverse(A)),B) = multiply(A,B).  [para(43(a,1),43(a,1,2))].
% 186.06/186.37  374 multiply(A,identity) = A.  [back_rewrite(346),rewrite([373(4)])].
% 186.06/186.37  376 inverse(sk_c1) = sk_c7 | multiply(A,multiply(sk_c6,sk_c3)) = A.  [back_rewrite(331),rewrite([374(10)])].
% 186.06/186.37  377 inverse(identity) = identity.  [para(374(a,1),2(a,1))].
% 186.06/186.37  409 inverse(sk_c1) = sk_c7 | multiply(A,multiply(sk_c6,sk_c4)) = A.  [para(40(b,1),28(a,2,2)),rewrite([28(8),374(10)])].
% 186.06/186.37  413 inverse(sk_c2) = sk_c6 | multiply(A,multiply(sk_c6,sk_c3)) = A.  [para(41(b,1),28(a,2,2)),rewrite([28(8),374(10)])].
% 186.06/186.37  414 inverse(sk_c2) = sk_c6 | inverse(sk_c6) = sk_c3.  [para(41(b,1),43(a,1,2)),rewrite([374(8)])].
% 186.06/186.37  417 inverse(sk_c2) = sk_c6 | multiply(A,multiply(sk_c6,sk_c4)) = A.  [para(42(b,1),28(a,2,2)),rewrite([28(8),374(10)])].
% 186.06/186.37  439 multiply(A,inverse(A)) = identity.  [para(373(a,1),2(a,1))].
% 186.06/186.37  440 inverse(sk_c1) = sk_c7 | multiply(inverse(sk_c6),A) = multiply(sk_c3,A).  [para(3(b,1),373(a,1,1,1))].
% 186.06/186.37  442 inverse(sk_c2) = sk_c6 | multiply(inverse(sk_c6),A) = multiply(sk_c3,A).  [para(5(b,1),373(a,1,1,1))].
% 186.06/186.37  469 multiply(A,multiply(inverse(A),B)) = B.  [para(373(a,1),43(a,1))].
% 186.06/186.37  470 inverse(inverse(A)) = A.  [para(373(a,1),374(a,1)),rewrite([374(2)]),flip(a)].
% 186.06/186.37  473 inverse(sk_c6) = sk_c3 | multiply(inverse(sk_c6),A) = multiply(sk_c2,A).  [para(414(a,1),373(a,1,1,1))].
% 186.06/186.37  499 multiply(sk_c7,sk_c6) != sk_c5 | multiply(A,sk_c7) != sk_c6 | inverse(A) != sk_c7 | multiply(B,sk_c6) != sk_c5 | inverse(B) != sk_c6 | multiply(sk_c6,sk_c7) != sk_c5 | identity != sk_c7 | inverse(C) != sk_c6 | multiply(C,sk_c5) != sk_c6.  [back_rewrite(106),rewrite([470(30)]),xx(h)].
% 186.06/186.37  506 inverse(sk_c1) = sk_c7 | multiply(sk_c3,sk_c6) = identity.  [para(3(b,1),439(a,1,2))].
% 186.06/186.37  508 inverse(sk_c2) = sk_c6 | multiply(sk_c3,sk_c6) = identity.  [para(5(b,1),439(a,1,2))].
% 186.06/186.37  510 multiply(A,multiply(B,inverse(multiply(A,B)))) = identity.  [para(439(a,1),28(a,1)),flip(a)].
% 186.06/186.37  654 inverse(sk_c1) = sk_c7 | identity = sk_c7.  [para(506(b,1),12(b,1)),merge(b)].
% 186.06/186.37  657 inverse(sk_c3) = sk_c6 | multiply(inverse(sk_c6),multiply(sk_c1,sk_c7)) = identity.  [para(2(a,1),49(b,2))].
% 186.06/186.37  689 identity = sk_c7 | multiply(sk_c1,sk_c7) = identity.  [para(654(a,1),439(a,1,2))].
% 186.06/186.37  751 inverse(sk_c2) = sk_c6 | identity = sk_c7.  [para(508(b,1),17(b,1)),merge(b)].
% 186.06/186.37  756 identity = sk_c7 | multiply(sk_c2,sk_c6) = identity.  [para(751(a,1),439(a,1,2))].
% 186.06/186.37  1318 inverse(sk_c1) = sk_c7 | multiply(A,sk_c7) = A.  [para(506(b,1),55(b,1,2)),rewrite([374(10)]),flip(c),merge(b)].
% 186.06/186.37  1813 inverse(sk_c3) = sk_c6 | multiply(inverse(sk_c2),multiply(sk_c5,A)) = multiply(sk_c6,A).  [para(58(b,1),43(a,1,2))].
% 186.06/186.37  2010 inverse(sk_c1) = sk_c7 | multiply(sk_c6,sk_c6) = sk_c5.  [para(4(b,1),356(b,1,1)),merge(b)].
% 186.06/186.37  2042 inverse(sk_c1) = sk_c7 | multiply(inverse(sk_c6),sk_c5) = sk_c6.  [para(2010(b,1),43(a,1,2))].
% 186.06/186.37  2438 inverse(sk_c2) = sk_c6 | multiply(sk_c6,sk_c7) = sk_c6.  [para(5(b,1),360(b,1,1)),merge(b)].
% 186.06/186.37  2464 inverse(sk_c2) = sk_c6 | sk_c5 = sk_c6.  [para(2438(b,1),16(b,1)),flip(c),merge(b)].
% 186.06/186.37  2574 sk_c5 = sk_c6 | inverse(sk_c6) = sk_c2.  [para(2464(a,1),470(a,1,1))].
% 186.06/186.37  2769 multiply(A,inverse(multiply(B,A))) = inverse(B).  [para(510(a,1),43(a,1,2)),rewrite([374(3)]),flip(a)].
% 186.06/186.37  2806 inverse(sk_c3) = sk_c6 | multiply(sk_c6,inverse(sk_c5)) = inverse(sk_c7).  [para(7(a,1),2769(a,1,2,1))].
% 186.06/186.37  2826 multiply(sk_c2,sk_c6) = sk_c5 | multiply(sk_c5,inverse(sk_c6)) = inverse(sk_c4).  [para(27(b,1),2769(a,1,2,1))].
% 186.06/186.37  2830 inverse(multiply(A,B)) = multiply(inverse(B),inverse(A)).  [para(2769(a,1),43(a,1,2)),flip(a)].
% 186.06/186.37  3761 inverse(sk_c2) = sk_c6 | multiply(A,sk_c7) = A.  [para(508(b,1),65(b,1,2)),rewrite([374(10)]),flip(c),merge(b)].
% 186.06/186.37  4483 multiply(sk_c6,sk_c7) = sk_c5 | multiply(inverse(sk_c5),multiply(sk_c7,sk_c6)) = identity.  [para(2(a,1),69(b,2))].
% 186.06/186.37  11534 multiply(sk_c7,sk_c6) != sk_c5 | sk_c7 != sk_c6 | identity != sk_c7 | multiply(A,sk_c6) != sk_c5 | inverse(A) != sk_c6 | multiply(sk_c6,sk_c7) != sk_c5 | inverse(B) != sk_c6 | multiply(B,sk_c5) != sk_c6.  [para(1(a,1),499(b,1)),rewrite([377(10)]),merge(g)].
% 186.06/186.37  11539 multiply(sk_c7,sk_c6) != sk_c5 | sk_c7 != sk_c6 | identity != sk_c7 | multiply(A,multiply(B,sk_c6)) != sk_c5 | multiply(inverse(B),inverse(A)) != sk_c6 | multiply(sk_c6,sk_c7) != sk_c5 | inverse(C) != sk_c6 | multiply(C,sk_c5) != sk_c6.  [para(28(a,1),11534(d,1)),rewrite([2830(18)])].
% 186.06/186.37  11568 multiply(sk_c7,sk_c6) != sk_c5 | sk_c7 != sk_c6 | identity != sk_c7 | sk_c5 != A | multiply(sk_c6,inverse(A)) != sk_c6 | multiply(sk_c6,sk_c7) != sk_c5 | inverse(B) != sk_c6 | multiply(B,sk_c5) != sk_c6.  [para(2(a,1),11539(d,1,2)),rewrite([374(13),470(16)]),flip(d)].
% 186.06/186.37  11571 multiply(sk_c7,sk_c6) != sk_c5 | sk_c7 != sk_c6 | identity != sk_c7 | sk_c5 != A | multiply(sk_c6,inverse(A)) != sk_c6 | multiply(sk_c6,sk_c7) != sk_c5 | multiply(inverse(B),inverse(C)) != sk_c6 | multiply(C,multiply(B,sk_c5)) != sk_c6.  [para(28(a,1),11568(h,1)),rewrite([2830(25)])].
% 186.06/186.37  11803 multiply(sk_c7,sk_c6) != sk_c5 | sk_c7 != sk_c6 | identity != sk_c7 | sk_c5 != A | multiply(sk_c6,inverse(A)) != sk_c6 | multiply(sk_c6,sk_c7) != sk_c5 | multiply(sk_c5,inverse(B)) != sk_c6 | sk_c6 != B.  [para(2(a,1),11571(h,1,2)),rewrite([470(26),374(30)]),flip(h)].
% 186.06/186.37  11806 multiply(sk_c7,sk_c6) != sk_c5 | sk_c7 != sk_c6 | identity != sk_c7 | inverse(A) != sk_c5 | multiply(sk_c6,A) != sk_c6 | multiply(sk_c6,sk_c7) != sk_c5 | multiply(sk_c5,inverse(B)) != sk_c6 | sk_c6 != B.  [para(470(a,1),11803(e,1,2)),flip(d)].
% 186.06/186.37  11811 multiply(sk_c7,sk_c6) != sk_c5 | sk_c7 != sk_c6 | identity != sk_c7 | inverse(A) != sk_c5 | multiply(sk_c6,A) != sk_c6 | multiply(sk_c6,sk_c7) != sk_c5 | multiply(sk_c5,B) != sk_c6 | inverse(B) != sk_c6.  [para(470(a,1),11806(g,1,2)),flip(h)].
% 186.06/186.37  11830 multiply(sk_c7,sk_c6) != sk_c5 | sk_c7 != sk_c6 | identity != sk_c7 | inverse(A) != sk_c5 | multiply(sk_c6,A) != sk_c6 | multiply(sk_c6,sk_c7) != sk_c5 | sk_c6 != B | multiply(inverse(B),sk_c5) != sk_c6.  [para(469(a,1),11811(g,1)),rewrite([2830(29),470(29)]),flip(g)].
% 186.06/186.37  11867 multiply(sk_c7,sk_c6) != sk_c5 | sk_c7 != sk_c6 | identity != sk_c7 | inverse(A) != sk_c5 | multiply(sk_c6,A) != sk_c6 | multiply(sk_c6,sk_c7) != sk_c5 | multiply(B,C) != sk_c6 | multiply(inverse(C),multiply(inverse(B),sk_c5)) != sk_c6.  [para(2830(a,1),11830(h,1,1)),rewrite([28(31)]),flip(g)].
% 186.06/186.37  12414 multiply(sk_c7,sk_c6) != sk_c5 | sk_c7 != sk_c6 | identity != sk_c7 | inverse(A) != sk_c5 | multiply(sk_c6,A) != sk_c6 | multiply(sk_c6,sk_c7) != sk_c5 | multiply(B,inverse(C)) != sk_c6 | multiply(C,multiply(inverse(B),sk_c5)) != sk_c6.  [para(470(a,1),11867(h,1,1))].
% 186.06/186.37  13248 multiply(sk_c7,sk_c6) != sk_c5 | sk_c7 != sk_c6 | identity != sk_c7 | inverse(A) != sk_c5 | multiply(sk_c6,A) != sk_c6 | multiply(sk_c6,sk_c7) != sk_c5 | multiply(B,multiply(inverse(C),inverse(D))) != sk_c6 | multiply(D,multiply(C,multiply(inverse(B),sk_c5))) != sk_c6.  [para(28(a,1),12414(h,1)),rewrite([2830(25)])].
% 186.06/186.37  14777 inverse(sk_c1) = sk_c7 | multiply(sk_c3,sk_c5) = sk_c7.  [para(440(b,1),53(b,2)),rewrite([43(14)]),flip(c),merge(b)].
% 186.06/186.37  14781 inverse(sk_c1) = sk_c7 | multiply(sk_c3,sk_c5) = sk_c6.  [para(440(b,1),2042(b,1)),merge(b)].
% 186.06/186.37  14827 inverse(sk_c2) = sk_c6 | multiply(sk_c3,sk_c5) = sk_c7.  [para(442(b,1),359(b,1)),merge(b)].
% 186.06/186.37  15555 inverse(sk_c1) = sk_c7 | multiply(inverse(sk_c3),sk_c7) = sk_c5.  [para(14777(b,1),43(a,1,2))].
% 186.06/186.37  15594 inverse(sk_c2) = sk_c6 | multiply(inverse(sk_c3),sk_c7) = sk_c5.  [para(14827(b,1),43(a,1,2))].
% 186.06/186.37  17051 inverse(sk_c1) = sk_c7 | inverse(sk_c3) = sk_c5.  [para(15555(b,1),1318(b,1)),flip(c),merge(b)].
% 186.06/186.37  17068 inverse(sk_c1) = sk_c7 | multiply(sk_c5,sk_c3) = identity.  [para(17051(b,1),2(a,1,1))].
% 186.06/186.37  17071 inverse(sk_c1) = sk_c7 | multiply(sk_c3,sk_c5) = identity.  [para(17051(b,1),439(a,1,2))].
% 186.06/186.37  17116 inverse(sk_c1) = sk_c7 | multiply(sk_c6,sk_c3) = sk_c4.  [para(17068(b,1),56(b,1,2)),rewrite([374(11)]),flip(c),merge(b)].
% 186.06/186.37  17122 inverse(sk_c1) = sk_c7 | identity = sk_c6.  [para(17071(b,1),14781(b,1)),merge(b)].
% 186.06/186.37  17126 identity = sk_c6 | multiply(sk_c1,sk_c7) = identity.  [para(17122(a,1),439(a,1,2))].
% 186.06/186.37  17176 identity = sk_c6 | inverse(sk_c4) = sk_c6.  [para(17126(b,1),10(a,1)),merge(b)].
% 186.06/186.37  17177 identity = sk_c6 | multiply(sk_c6,sk_c7) = sk_c5.  [para(17126(b,1),22(a,1)),merge(b)].
% 186.06/186.37  17219 identity = sk_c6 | multiply(inverse(sk_c6),sk_c5) = sk_c7.  [para(17177(b,1),43(a,1,2))].
% 186.06/186.37  17326 inverse(sk_c1) = sk_c7 | multiply(A,sk_c4) = A.  [para(17116(b,1),376(b,1,2)),merge(b)].
% 186.06/186.37  17432 identity = sk_c6 | multiply(inverse(sk_c5),sk_c6) = inverse(sk_c7).  [para(17219(b,1),2830(a,1,1)),rewrite([470(10)]),flip(b)].
% 186.06/186.37  17479 inverse(sk_c1) = sk_c7 | multiply(A,sk_c6) = A.  [para(17326(b,1),409(b,1,2)),merge(b)].
% 186.06/186.37  17622 inverse(sk_c1) = sk_c7 | inverse(sk_c6) = identity.  [para(17479(b,1),2(a,1))].
% 186.06/186.37  17673 inverse(sk_c6) = identity | multiply(sk_c1,sk_c7) = identity.  [para(17622(a,1),439(a,1,2))].
% 186.06/186.37  18044 inverse(sk_c6) = identity | inverse(sk_c3) = sk_c6.  [para(17673(b,1),657(b,1,2)),rewrite([374(12)]),merge(c)].
% 186.06/186.37  18048 inverse(sk_c6) = identity | inverse(sk_c6) = sk_c3.  [para(18044(b,1),470(a,1,1))].
% 186.06/186.37  18069 inverse(sk_c6) = sk_c3 | multiply(sk_c2,A) = A.  [para(18048(a,1),473(b,1,1)),rewrite([1(10)]),flip(c),merge(b)].
% 186.06/186.37  18303 inverse(sk_c6) = sk_c3 | inverse(sk_c2) = identity.  [para(18069(b,1),439(a,1))].
% 186.06/186.37  18739 inverse(sk_c2) = sk_c6 | inverse(sk_c3) = sk_c5.  [para(15594(b,1),3761(b,1)),flip(c),merge(b)].
% 186.06/186.37  18764 inverse(sk_c2) = sk_c6 | multiply(sk_c5,sk_c3) = identity.  [para(18739(b,1),2(a,1,1))].
% 186.06/186.37  18805 inverse(sk_c2) = sk_c6 | multiply(sk_c6,sk_c3) = sk_c4.  [para(18764(b,1),66(b,1,2)),rewrite([374(11)]),flip(c),merge(b)].
% 186.06/186.37  19390 inverse(sk_c2) = sk_c6 | multiply(A,sk_c4) = A.  [para(18805(b,1),413(b,1,2)),merge(b)].
% 186.06/186.37  19872 inverse(sk_c2) = sk_c6 | inverse(sk_c4) = identity.  [para(19390(b,1),2(a,1))].
% 186.06/186.37  19900 inverse(sk_c2) = sk_c6 | multiply(A,sk_c6) = A.  [para(19390(b,1),417(b,1,2)),merge(b)].
% 186.06/186.37  20231 inverse(sk_c2) = sk_c6 | inverse(sk_c4) = sk_c5.  [para(19900(b,1),361(b,1)),merge(b)].
% 186.06/186.37  20282 inverse(sk_c2) = sk_c6 | identity = sk_c5.  [para(20231(b,1),19872(b,1)),flip(c),merge(b)].
% 186.06/186.37  20290 identity = sk_c5 | inverse(sk_c6) = sk_c2.  [para(20282(a,1),470(a,1,1))].
% 186.06/186.37  20291 identity = sk_c5 | multiply(sk_c2,sk_c6) = identity.  [para(20282(a,1),439(a,1,2))].
% 186.06/186.37  20746 identity = sk_c5 | multiply(sk_c6,sk_c7) = sk_c5.  [para(20291(b,1),25(a,1)),merge(b)].
% 186.06/186.37  21009 identity = sk_c5 | multiply(inverse(sk_c6),sk_c5) = sk_c7.  [para(20746(b,1),43(a,1,2))].
% 186.06/186.37  21572 identity = sk_c5 | multiply(sk_c2,sk_c5) = sk_c7.  [para(20290(b,1),21009(b,1,1)),merge(b)].
% 186.06/186.37  21586 identity = sk_c5 | multiply(inverse(sk_c2),sk_c7) = sk_c5.  [para(21572(b,1),43(a,1,2))].
% 186.06/186.37  24861 identity = sk_c6 | multiply(sk_c5,inverse(sk_c7)) = sk_c6.  [para(17432(b,1),43(a,1,2)),rewrite([470(6)])].
% 186.06/186.37  29200 multiply(sk_c7,sk_c6) != sk_c5 | sk_c7 != sk_c6 | identity != sk_c7 | inverse(A) != sk_c5 | multiply(sk_c6,A) != sk_c6 | multiply(sk_c6,sk_c7) != sk_c5 | multiply(B,multiply(inverse(C),multiply(inverse(D),inverse(E)))) != sk_c6 | multiply(E,multiply(D,multiply(C,multiply(inverse(B),sk_c5)))) != sk_c6.  [para(28(a,1),13248(h,1,2)),rewrite([2830(25),28(28)])].
% 186.06/186.37  32745 inverse(sk_c3) = sk_c6 | inverse(sk_c2) = inverse(sk_c7).  [para(2806(b,1),1813(b,2)),rewrite([439(14),374(12)]),merge(b)].
% 186.06/186.37  32758 inverse(sk_c2) = inverse(sk_c7) | inverse(sk_c6) = sk_c3.  [para(32745(a,1),470(a,1,1))].
% 186.06/186.37  32764 inverse(sk_c6) = sk_c3 | inverse(sk_c7) = identity.  [para(32758(a,1),18303(b,1)),merge(b)].
% 186.06/186.37  32983 inverse(sk_c6) = sk_c3 | identity = sk_c7.  [para(32764(b,1),2(a,1,1)),rewrite([1(7)]),flip(b)].
% 186.06/186.37  32986 identity = sk_c7 | multiply(sk_c3,sk_c6) = identity.  [para(32983(a,1),2(a,1,1))].
% 186.06/186.37  33232 identity = sk_c7 | multiply(sk_c1,sk_c7) = sk_c6.  [para(32986(b,1),23(b,1)),merge(c)].
% 186.06/186.37  33233 identity = sk_c7 | multiply(sk_c2,sk_c6) = sk_c5.  [para(32986(b,1),26(b,1)),merge(c)].
% 186.06/186.37  33383 identity = sk_c7 | identity = sk_c6.  [para(33232(b,1),689(b,1)),flip(c),merge(b)].
% 186.06/186.37  33403 identity = sk_c6 | inverse(sk_c7) = identity.  [para(33383(a,1),377(a,1,1))].
% 186.06/186.37  33439 identity = sk_c6 | sk_c5 = sk_c6.  [para(33403(b,1),24861(b,1,2)),rewrite([374(9)]),merge(b)].
% 186.06/186.37  33478 sk_c5 = sk_c6 | inverse(sk_c6) = identity.  [para(33439(a,1),377(a,1,1))].
% 186.06/186.37  33618 sk_c5 = sk_c6 | identity = sk_c2.  [para(33478(b,1),2574(b,1)),merge(b)].
% 186.06/186.37  33688 multiply(sk_c5,inverse(sk_c6)) = inverse(sk_c4) | identity = sk_c5.  [para(2826(a,1),20291(b,1)),flip(c),merge(c)].
% 186.06/186.37  33988 identity = sk_c7 | identity = sk_c5.  [para(33233(b,1),756(b,1)),flip(c),merge(b)].
% 186.06/186.37  34002 identity = sk_c7 | sk_c5 = sk_c6.  [para(33988(b,1),33439(a,1)),merge(c)].
% 186.06/186.37  34031 sk_c5 = sk_c6 | sk_c2 = sk_c7.  [para(34002(a,1),33618(b,1)),flip(c),merge(b)].
% 186.06/186.37  34071 sk_c5 = sk_c6 | identity = sk_c5.  [para(34031(b,1),21586(b,1,1,1)),rewrite([2(10)]),merge(c)].
% 186.06/186.37  34127 sk_c5 = sk_c6.  [para(34071(b,1),33439(a,1)),merge(b),merge(c)].
% 186.06/186.37  34198 inverse(sk_c4) = identity | identity = sk_c6.  [back_rewrite(33688),rewrite([34127(1),439(4),34127(6)]),flip(a)].
% 186.06/186.37  34889 multiply(sk_c7,sk_c6) != sk_c6 | sk_c7 != sk_c6 | identity != sk_c7 | inverse(A) != sk_c6 | multiply(sk_c6,A) != sk_c6 | multiply(sk_c6,sk_c7) != sk_c6 | multiply(B,multiply(inverse(C),multiply(inverse(D),inverse(E)))) != sk_c6 | multiply(E,multiply(D,multiply(C,multiply(inverse(B),sk_c6)))) != sk_c6.  [back_rewrite(29200),rewrite([34127(4),34127(13),34127(22),34127(33)])].
% 186.06/186.37  37397 multiply(sk_c6,sk_c7) = sk_c6 | multiply(inverse(sk_c6),multiply(sk_c7,sk_c6)) = identity.  [back_rewrite(4483),rewrite([34127(4),34127(6)])].
% 186.06/186.37  38493 multiply(sk_c7,sk_c6) != sk_c6 | sk_c7 != sk_c6 | identity != sk_c7 | multiply(inverse(sk_c6),multiply(A,multiply(inverse(B),inverse(C)))) != sk_c6 | multiply(sk_c6,multiply(C,multiply(B,multiply(inverse(A),sk_c6)))) != sk_c6 | multiply(sk_c6,sk_c7) != sk_c6 | multiply(A,multiply(inverse(B),multiply(inverse(C),inverse(sk_c6)))) != sk_c6.  [factor(34889,e,h),rewrite([2830(17),2830(16),2830(15),470(15),28(16),28(18),28(17)])].
% 186.06/186.37  38663 identity = sk_c6.  [para(34198(a,1),17176(b,1)),merge(b),merge(c)].
% 186.06/186.37  38743 multiply(sk_c7,sk_c6) != sk_c6 | sk_c7 != sk_c6 | multiply(inverse(sk_c6),multiply(A,multiply(inverse(B),inverse(C)))) != sk_c6 | multiply(sk_c6,multiply(C,multiply(B,multiply(inverse(A),sk_c6)))) != sk_c6 | multiply(sk_c6,sk_c7) != sk_c6 | multiply(A,multiply(inverse(B),multiply(inverse(C),inverse(sk_c6)))) != sk_c6.  [back_rewrite(38493),rewrite([38663(9)]),flip(c),merge(c)].
% 186.06/186.37  38779 multiply(sk_c6,sk_c7) = sk_c6 | multiply(inverse(sk_c6),multiply(sk_c7,sk_c6)) = sk_c6.  [back_rewrite(37397),rewrite([38663(12)])].
% 186.06/186.37  39240 inverse(sk_c6) = sk_c6.  [back_rewrite(377),rewrite([38663(1),38663(3)])].
% 186.06/186.37  39241 multiply(A,sk_c6) = A.  [back_rewrite(374),rewrite([38663(1)])].
% 186.06/186.37  39243 multiply(sk_c6,A) = A.  [back_rewrite(1),rewrite([38663(1)])].
% 186.06/186.37  39245 sk_c7 != sk_c6.  [factor(38743,c,f),rewrite([39241(3),39240(8),39240(9),39240(10),39240(11),39241(11),39241(10),39241(9),39240(14),39240(14),39241(15),39241(14),39241(13),39241(12),39243(15)]),xx(c),xx(d),merge(b),merge(c)].
% 186.06/186.37  39264 $F.  [back_rewrite(38779),rewrite([39243(3),39240(5),39241(7),39243(6)]),merge(b),unit_del(a,39245)].
% 186.06/186.37  
% 186.06/186.37  % SZS output end Refutation
% 186.06/186.37  ============================== end of proof ==========================
% 186.06/186.37  
% 186.06/186.37  ============================== STATISTICS ============================
% 186.06/186.37  
% 186.06/186.37  Given=8667. Generated=8944545. Kept=39263. proofs=1.
% 186.06/186.37  Usable=1361. Sos=3162. Demods=23. Limbo=24, Disabled=34745. Hints=0.
% 186.06/186.37  Megabytes=34.34.
% 186.06/186.37  User_CPU=180.72, System_CPU=4.59, Wall_clock=185.
% 186.06/186.37  
% 186.06/186.37  ============================== end of statistics =====================
% 186.06/186.37  
% 186.06/186.37  ============================== end of search =========================
% 186.06/186.37  
% 186.06/186.37  THEOREM PROVED
% 186.06/186.37  % SZS status Unsatisfiable
% 186.06/186.37  
% 186.06/186.37  Exiting with 1 proof.
% 186.06/186.37  
% 186.06/186.37  Process 29716 exit (max_proofs) Tue Jun 14 13:50:45 2022
% 186.06/186.37  Prover9 interrupted
%------------------------------------------------------------------------------