TSTP Solution File: GRP808+1 by Otter---3.3

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Otter---3.3
% Problem  : GRP808+1 : TPTP v8.1.0. Released v7.5.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : otter-tptp-script %s

% Computer : n029.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  : 300s
% DateTime : Wed Jul 27 12:57:51 EDT 2022

% Result   : Unknown 1.92s 2.11s
% Output   : None 
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----No solution output by system
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.11/0.12  % Problem  : GRP808+1 : TPTP v8.1.0. Released v7.5.0.
% 0.11/0.12  % Command  : otter-tptp-script %s
% 0.12/0.33  % Computer : n029.cluster.edu
% 0.12/0.33  % Model    : x86_64 x86_64
% 0.12/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.33  % Memory   : 8042.1875MB
% 0.12/0.33  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.33  % CPULimit : 300
% 0.12/0.33  % WCLimit  : 300
% 0.12/0.33  % DateTime : Wed Jul 27 05:24:59 EDT 2022
% 0.12/0.33  % CPUTime  : 
% 1.84/2.06  ----- Otter 3.3f, August 2004 -----
% 1.84/2.06  The process was started by sandbox on n029.cluster.edu,
% 1.84/2.06  Wed Jul 27 05:24:59 2022
% 1.84/2.06  The command was "./otter".  The process ID is 18585.
% 1.84/2.06  
% 1.84/2.06  set(prolog_style_variables).
% 1.84/2.06  set(auto).
% 1.84/2.06     dependent: set(auto1).
% 1.84/2.06     dependent: set(process_input).
% 1.84/2.06     dependent: clear(print_kept).
% 1.84/2.06     dependent: clear(print_new_demod).
% 1.84/2.06     dependent: clear(print_back_demod).
% 1.84/2.06     dependent: clear(print_back_sub).
% 1.84/2.06     dependent: set(control_memory).
% 1.84/2.06     dependent: assign(max_mem, 12000).
% 1.84/2.06     dependent: assign(pick_given_ratio, 4).
% 1.84/2.06     dependent: assign(stats_level, 1).
% 1.84/2.06     dependent: assign(max_seconds, 10800).
% 1.84/2.06  clear(print_given).
% 1.84/2.06  
% 1.84/2.06  formula_list(usable).
% 1.84/2.06  all A (A=A).
% 1.84/2.06  all X (m(X,e)=X).
% 1.84/2.06  all X (m(e,X)=X).
% 1.84/2.06  all X Y (m(X,b(X,Y))=Y).
% 1.84/2.06  all X Y (b(X,m(X,Y))=Y).
% 1.84/2.06  all X Y (m(s(X,Y),Y)=X).
% 1.84/2.06  all X Y (s(m(X,Y),Y)=X).
% 1.84/2.06  all X U (t(X,U)=b(X,m(U,X))).
% 1.84/2.06  all X U (i1(X,U)=m(X,m(U,b(X,e)))).
% 1.84/2.06  all X U (j1(X,U)=m(m(s(e,X),U),X)).
% 1.84/2.06  all X U (i2(X,U)=m(b(X,U),b(b(X,e),e))).
% 1.84/2.06  all X U (j2(X,U)=m(s(e,s(e,X)),s(U,X))).
% 1.84/2.06  all X Y U (l(X,Y,U)=b(m(Y,X),m(Y,m(X,U)))).
% 1.84/2.06  all X Y U (r(X,Y,U)=s(m(m(U,X),Y),m(X,Y))).
% 1.84/2.06  all X14 X15 X16 X17 (r(X14,X15,i2(X16,r(X14,X15,i2(X16,r(X14,X15,i2(X16,r(X14,X15,i2(X16,r(X14,X15,i2(X16,r(X14,X15,i2(X16,X17))))))))))))=X17).
% 1.84/2.06  all X14 X15 X16 (l(X14,X15,i2(X14,i1(X15,l(X14,X15,i2(X14,i1(X15,l(X14,X15,i2(X14,i1(X15,l(X14,X15,i2(X14,i1(X15,X16))))))))))))=X16).
% 1.84/2.06  all X14 X15 X16 X17 (i2(X14,i1(X15,t(X16,X17)))=i1(X15,t(X16,i2(X14,X17)))).
% 1.84/2.06  all X14 X15 X16 X17 X18 (l(X14,X15,i1(X16,t(X17,X18)))=i1(X16,t(X17,l(X14,X15,X18)))).
% 1.84/2.06  all X14 X15 X16 X17 X18 (i2(X14,t(X15,i2(X16,j2(X17,X18))))=i2(X16,j2(X17,i2(X14,t(X15,X18))))).
% 1.84/2.06  all X14 X15 X16 X17 X18 (i2(X14,t(X15,i2(X16,j2(X17,X18))))=i2(X16,j2(X17,i2(X14,t(X15,X18))))).
% 1.84/2.06  all X14 X15 X16 X17 X18 (i1(X14,t(X15,t(X16,i2(X17,X18))))=t(X16,i2(X17,i1(X14,t(X15,X18))))).
% 1.84/2.06  all X14 X15 X16 X17 X18 (i2(X14,i1(X15,j2(X16,t(X17,X18))))=j2(X16,t(X17,i2(X14,i1(X15,X18))))).
% 1.84/2.06  all X14 X15 X16 X17 X18 (i2(X14,j2(X15,j2(X16,t(X17,X18))))=j2(X16,t(X17,i2(X14,j2(X15,X18))))).
% 1.84/2.06  all X14 X15 X16 X17 X18 X19 (r(X14,X15,i1(X16,i1(X17,i1(X18,X19))))=i1(X17,i1(X18,r(X14,X15,i1(X16,X19))))).
% 1.84/2.06  all X14 X15 X16 X17 X18 X19 (r(X14,X15,i2(X16,i2(X17,i2(X18,X19))))=i2(X17,i2(X18,r(X14,X15,i2(X16,X19))))).
% 1.84/2.06  all X14 X15 X16 X17 X18 X19 X20 (l(X14,X15,i2(X16,r(X17,X18,j2(X19,X20))))=r(X17,X18,j2(X19,l(X14,X15,i2(X16,X20))))).
% 1.84/2.06  all X14 X15 X16 X17 X18 X19 X20 (l(X14,X15,t(X16,l(X17,X18,t(X19,X20))))=l(X17,X18,t(X19,l(X14,X15,t(X16,X20))))).
% 1.84/2.06  all X14 X15 X16 X17 X18 X19 X20 X21 (l(X14,X15,t(X16,i2(X17,l(X18,X19,t(X20,X21)))))=l(X18,X19,t(X20,l(X14,X15,t(X16,i2(X17,X21)))))).
% 1.84/2.06  all X14 X15 X16 X17 X18 X19 X20 X21 (r(X14,X15,i1(X16,i2(X17,l(X18,X19,t(X20,X21)))))=l(X18,X19,t(X20,r(X14,X15,i1(X16,i2(X17,X21)))))).
% 1.84/2.06  all X14 X15 X16 X17 X18 X19 X20 X21 (l(X14,X15,i1(X16,t(X17,r(X18,X19,i2(X20,X21)))))=r(X18,X19,i2(X20,l(X14,X15,i1(X16,t(X17,X21)))))).
% 1.84/2.06  all X14 X15 X16 X17 X18 X19 X20 X21 (l(X14,X15,i1(X16,i2(X17,l(X18,X19,i1(X20,X21)))))=l(X18,X19,i1(X20,l(X14,X15,i1(X16,i2(X17,X21)))))).
% 1.84/2.06  all X14 X15 X16 X17 X18 X19 X20 X21 (l(X14,X15,i2(X16,t(X17,l(X18,X19,i2(X20,X21)))))=l(X18,X19,i2(X20,l(X14,X15,i2(X16,t(X17,X21)))))).
% 1.84/2.06  all X14 X15 X16 X17 X18 X19 X20 X21 (r(X14,X15,i1(X16,i1(X17,l(X18,X19,t(X20,X21)))))=l(X18,X19,t(X20,r(X14,X15,i1(X16,i1(X17,X21)))))).
% 1.84/2.06  all X14 X15 X16 X17 X18 X19 X20 X21 (r(X14,X15,i2(X16,t(X17,r(X18,X19,i2(X20,X21)))))=r(X18,X19,i2(X20,r(X14,X15,i2(X16,t(X17,X21)))))).
% 1.84/2.06  all X14 X15 X16 X17 X18 X19 X20 X21 (r(X14,X15,i1(X16,t(X17,r(X18,X19,j2(X20,X21)))))=r(X18,X19,j2(X20,r(X14,X15,i1(X16,t(X17,X21)))))).
% 1.84/2.06  all X14 X15 X16 X17 X18 X19 X20 X21 (l(X14,X15,t(X16,i2(X17,r(X18,X19,i2(X20,X21)))))=r(X18,X19,i2(X20,l(X14,X15,t(X16,i2(X17,X21)))))).
% 1.84/2.06  -(all U X Y Z W (a(W,m(s(e,U),r(X,Y,U)),Z)=e)).
% 1.84/2.06  end_of_list.
% 1.84/2.06  
% 1.84/2.06  -------> usable clausifies to:
% 1.84/2.06  
% 1.84/2.06  list(usable).
% 1.84/2.06  0 [] A=A.
% 1.84/2.06  0 [] m(X,e)=X.
% 1.84/2.06  0 [] m(e,X)=X.
% 1.84/2.06  0 [] m(X,b(X,Y))=Y.
% 1.84/2.06  0 [] b(X,m(X,Y))=Y.
% 1.84/2.06  0 [] m(s(X,Y),Y)=X.
% 1.84/2.06  0 [] s(m(X,Y),Y)=X.
% 1.84/2.06  0 [] t(X,U)=b(X,m(U,X)).
% 1.84/2.06  0 [] i1(X,U)=m(X,m(U,b(X,e))).
% 1.84/2.06  0 [] j1(X,U)=m(m(s(e,X),U),X).
% 1.84/2.06  0 [] i2(X,U)=m(b(X,U),b(b(X,e),e)).
% 1.84/2.06  0 [] j2(X,U)=m(s(e,s(e,X)),s(U,X)).
% 1.84/2.06  0 [] l(X,Y,U)=b(m(Y,X),m(Y,m(X,U))).
% 1.84/2.06  0 [] r(X,Y,U)=s(m(m(U,X),Y),m(X,Y)).
% 1.84/2.06  0 [] r(X14,X15,i2(X16,r(X14,X15,i2(X16,r(X14,X15,i2(X16,r(X14,X15,i2(X16,r(X14,X15,i2(X16,r(X14,X15,i2(X16,X17))))))))))))=X17.
% 1.84/2.06  0 [] l(X14,X15,i2(X14,i1(X15,l(X14,X15,i2(X14,i1(X15,l(X14,X15,i2(X14,i1(X15,l(X14,X15,i2(X14,i1(X15,X16))))))))))))=X16.
% 1.84/2.06  0 [] i2(X14,i1(X15,t(X16,X17)))=i1(X15,t(X16,i2(X14,X17))).
% 1.84/2.06  0 [] l(X14,X15,i1(X16,t(X17,X18)))=i1(X16,t(X17,l(X14,X15,X18))).
% 1.84/2.06  0 [] i2(X14,t(X15,i2(X16,j2(X17,X18))))=i2(X16,j2(X17,i2(X14,t(X15,X18)))).
% 1.84/2.06  0 [] i2(X14,t(X15,i2(X16,j2(X17,X18))))=i2(X16,j2(X17,i2(X14,t(X15,X18)))).
% 1.84/2.06  0 [] i1(X14,t(X15,t(X16,i2(X17,X18))))=t(X16,i2(X17,i1(X14,t(X15,X18)))).
% 1.84/2.06  0 [] i2(X14,i1(X15,j2(X16,t(X17,X18))))=j2(X16,t(X17,i2(X14,i1(X15,X18)))).
% 1.84/2.06  0 [] i2(X14,j2(X15,j2(X16,t(X17,X18))))=j2(X16,t(X17,i2(X14,j2(X15,X18)))).
% 1.84/2.06  0 [] r(X14,X15,i1(X16,i1(X17,i1(X18,X19))))=i1(X17,i1(X18,r(X14,X15,i1(X16,X19)))).
% 1.84/2.06  0 [] r(X14,X15,i2(X16,i2(X17,i2(X18,X19))))=i2(X17,i2(X18,r(X14,X15,i2(X16,X19)))).
% 1.84/2.06  0 [] l(X14,X15,i2(X16,r(X17,X18,j2(X19,X20))))=r(X17,X18,j2(X19,l(X14,X15,i2(X16,X20)))).
% 1.84/2.06  0 [] l(X14,X15,t(X16,l(X17,X18,t(X19,X20))))=l(X17,X18,t(X19,l(X14,X15,t(X16,X20)))).
% 1.84/2.06  0 [] l(X14,X15,t(X16,i2(X17,l(X18,X19,t(X20,X21)))))=l(X18,X19,t(X20,l(X14,X15,t(X16,i2(X17,X21))))).
% 1.84/2.06  0 [] r(X14,X15,i1(X16,i2(X17,l(X18,X19,t(X20,X21)))))=l(X18,X19,t(X20,r(X14,X15,i1(X16,i2(X17,X21))))).
% 1.84/2.06  0 [] l(X14,X15,i1(X16,t(X17,r(X18,X19,i2(X20,X21)))))=r(X18,X19,i2(X20,l(X14,X15,i1(X16,t(X17,X21))))).
% 1.84/2.06  0 [] l(X14,X15,i1(X16,i2(X17,l(X18,X19,i1(X20,X21)))))=l(X18,X19,i1(X20,l(X14,X15,i1(X16,i2(X17,X21))))).
% 1.84/2.06  0 [] l(X14,X15,i2(X16,t(X17,l(X18,X19,i2(X20,X21)))))=l(X18,X19,i2(X20,l(X14,X15,i2(X16,t(X17,X21))))).
% 1.84/2.06  0 [] r(X14,X15,i1(X16,i1(X17,l(X18,X19,t(X20,X21)))))=l(X18,X19,t(X20,r(X14,X15,i1(X16,i1(X17,X21))))).
% 1.84/2.06  0 [] r(X14,X15,i2(X16,t(X17,r(X18,X19,i2(X20,X21)))))=r(X18,X19,i2(X20,r(X14,X15,i2(X16,t(X17,X21))))).
% 1.84/2.06  0 [] r(X14,X15,i1(X16,t(X17,r(X18,X19,j2(X20,X21)))))=r(X18,X19,j2(X20,r(X14,X15,i1(X16,t(X17,X21))))).
% 1.84/2.06  0 [] l(X14,X15,t(X16,i2(X17,r(X18,X19,i2(X20,X21)))))=r(X18,X19,i2(X20,l(X14,X15,t(X16,i2(X17,X21))))).
% 1.84/2.06  0 [] a($c1,m(s(e,$c5),r($c4,$c3,$c5)),$c2)!=e.
% 1.84/2.06  end_of_list.
% 1.84/2.06  
% 1.84/2.06  SCAN INPUT: prop=0, horn=1, equality=1, symmetry=0, max_lits=1.
% 1.84/2.06  
% 1.84/2.06  All clauses are units, and equality is present; the
% 1.84/2.06  strategy will be Knuth-Bendix with positive clauses in sos.
% 1.84/2.06  
% 1.84/2.06     dependent: set(knuth_bendix).
% 1.84/2.06     dependent: set(anl_eq).
% 1.84/2.06     dependent: set(para_from).
% 1.84/2.06     dependent: set(para_into).
% 1.84/2.06     dependent: clear(para_from_right).
% 1.84/2.06     dependent: clear(para_into_right).
% 1.84/2.06     dependent: set(para_from_vars).
% 1.84/2.06     dependent: set(eq_units_both_ways).
% 1.84/2.06     dependent: set(dynamic_demod_all).
% 1.84/2.06     dependent: set(dynamic_demod).
% 1.84/2.06     dependent: set(order_eq).
% 1.84/2.06     dependent: set(back_demod).
% 1.84/2.06     dependent: set(lrpo).
% 1.84/2.06  
% 1.84/2.06  ------------> process usable:
% 1.84/2.06  ** KEPT (pick-wt=13): 1 [] a($c1,m(s(e,$c5),r($c4,$c3,$c5)),$c2)!=e.
% 1.84/2.06  
% 1.84/2.06  ------------> process sos:
% 1.84/2.06  ** KEPT (pick-wt=3): 2 [] A=A.
% 1.84/2.06  ** KEPT (pick-wt=5): 3 [] m(A,e)=A.
% 1.84/2.06  ---> New Demodulator: 4 [new_demod,3] m(A,e)=A.
% 1.84/2.06  ** KEPT (pick-wt=5): 5 [] m(e,A)=A.
% 1.84/2.06  ---> New Demodulator: 6 [new_demod,5] m(e,A)=A.
% 1.84/2.06  ** KEPT (pick-wt=7): 7 [] m(A,b(A,B))=B.
% 1.84/2.06  ---> New Demodulator: 8 [new_demod,7] m(A,b(A,B))=B.
% 1.84/2.06  ** KEPT (pick-wt=7): 9 [] b(A,m(A,B))=B.
% 1.84/2.06  ---> New Demodulator: 10 [new_demod,9] b(A,m(A,B))=B.
% 1.84/2.06  ** KEPT (pick-wt=7): 11 [] m(s(A,B),B)=A.
% 1.84/2.06  ---> New Demodulator: 12 [new_demod,11] m(s(A,B),B)=A.
% 1.84/2.06  ** KEPT (pick-wt=7): 13 [] s(m(A,B),B)=A.
% 1.84/2.06  ---> New Demodulator: 14 [new_demod,13] s(m(A,B),B)=A.
% 1.84/2.06  ** KEPT (pick-wt=9): 15 [] t(A,B)=b(A,m(B,A)).
% 1.84/2.06  ---> New Demodulator: 16 [new_demod,15] t(A,B)=b(A,m(B,A)).
% 1.84/2.06  ** KEPT (pick-wt=11): 18 [copy,17,flip.1] m(A,m(B,b(A,e)))=i1(A,B).
% 1.84/2.06  ---> New Demodulator: 19 [new_demod,18] m(A,m(B,b(A,e)))=i1(A,B).
% 1.84/2.06  ** KEPT (pick-wt=11): 21 [copy,20,flip.1] m(m(s(e,A),B),A)=j1(A,B).
% 1.84/2.06  ---> New Demodulator: 22 [new_demod,21] m(m(s(e,A),B),A)=j1(A,B).
% 1.84/2.06  ** KEPT (pick-wt=13): 24 [copy,23,flip.1] m(b(A,B),b(b(A,e),e))=i2(A,B).
% 1.84/2.06  ---> New Demodulator: 25 [new_demod,24] m(b(A,B),b(b(A,e),e))=i2(A,B).
% 1.84/2.06  ** KEPT (pick-wt=13): 27 [copy,26,flip.1] m(s(e,s(e,A)),s(B,A))=j2(A,B).
% 1.84/2.06  ---> New Demodulator: 28 [new_demod,27] m(s(e,s(e,A)),s(B,A))=j2(A,B).
% 1.84/2.06  ** KEPT (pick-wt=14): 30 [copy,29,flip.1] b(m(A,B),m(A,m(B,C)))=l(B,A,C).
% 1.84/2.06  ---> New Demodulator: 31 [new_demod,30] b(m(A,B),m(A,m(B,C)))=l(B,A,C).
% 1.84/2.06  ** KEPT (pick-wt=14): 33 [copy,32,flip.1] s(m(m(A,B),C),m(B,C))=r(B,C,A).
% 1.84/2.06  ---> New Demodulator: 34 [new_demod,33] s(m(m(A,B),C),m(B,C))=r(B,C,A).
% 1.84/2.06  ** KEPT (pick-wt=33): 35 [] r(A,B,i2(C,r(A,B,i2(C,r(A,B,i2(C,r(A,B,i2(C,r(A,B,i2(C,r(A,B,i2(C,D))))))))))))=D.
% 1.84/2.06  ---> New Demodulator: 36 [new_demod,35] r(A,B,i2(C,r(A,B,i2(C,r(A,B,i2(C,r(A,B,i2(C,r(A,B,i2(C,r(A,B,i2(C,D))))))))))))=D.
% 1.84/2.06  ** KEPT (pick-wt=31): 37 [] l(A,B,i2(A,i1(B,l(A,B,i2(A,i1(B,l(A,B,i2(A,i1(B,l(A,B,i2(A,i1(B,C))))))))))))=C.
% 1.84/2.06  ---> New Demodulator: 38 [new_demod,37] l(A,B,i2(A,i1(B,l(A,B,i2(A,i1(B,l(A,B,i2(A,i1(B,l(A,B,i2(A,i1(B,C))))))))))))=C.
% 1.84/2.06  ** KEPT (pick-wt=19): 40 [copy,39,demod,16,16] i2(A,i1(B,b(C,m(D,C))))=i1(B,b(C,m(i2(A,D),C))).
% 1.84/2.06  ** KEPT (pick-wt=21): 42 [copy,41,demod,16,16,flip.1] i1(A,b(B,m(l(C,D,E),B)))=l(C,D,i1(A,b(B,m(E,B)))).
% 1.84/2.06  ---> New Demodulator: 43 [new_demod,42] i1(A,b(B,m(l(C,D,E),B)))=l(C,D,i1(A,b(B,m(E,B)))).
% 1.84/2.06  ** KEPT (pick-wt=23): 45 [copy,44,demod,16,16] i2(A,b(B,m(i2(C,j2(D,E)),B)))=i2(C,j2(D,i2(A,b(B,m(E,B))))).
% 1.84/2.06    Following clause subsumed by 45 during input processing: 0 [demod,16,16] i2(A,b(B,m(i2(C,j2(D,E)),B)))=i2(C,j2(D,i2(A,b(B,m(E,B))))).
% 1.84/2.06  ** KEPT (pick-wt=27): 47 [copy,46,demod,16,16,16,16] i1(A,b(B,m(b(C,m(i2(D,E),C)),B)))=b(C,m(i2(D,i1(A,b(B,m(E,B)))),C)).
% 1.84/2.06  ** KEPT (pick-wt=23): 49 [copy,48,demod,16,16,flip.1] j2(A,b(B,m(i2(C,i1(D,E)),B)))=i2(C,i1(D,j2(A,b(B,m(E,B))))).
% 1.84/2.06  ---> New Demodulator: 50 [new_demod,49] j2(A,b(B,m(i2(C,i1(D,E)),B)))=i2(C,i1(D,j2(A,b(B,m(E,B))))).
% 1.84/2.06  ** KEPT (pick-wt=23): 52 [copy,51,demod,16,16] i2(A,j2(B,j2(C,b(D,m(E,D)))))=j2(C,b(D,m(i2(A,j2(B,E)),D))).
% 1.84/2.06  ** KEPT (pick-wt=21): 53 [] r(A,B,i1(C,i1(D,i1(E,F))))=i1(D,i1(E,r(A,B,i1(C,F)))).
% 1.84/2.06  ** KEPT (pick-wt=21): 54 [] r(A,B,i2(C,i2(D,i2(E,F))))=i2(D,i2(E,r(A,B,i2(C,F)))).
% 1.84/2.06  ** KEPT (pick-wt=23): 55 [] l(A,B,i2(C,r(D,E,j2(F,G))))=r(D,E,j2(F,l(A,B,i2(C,G)))).
% 1.84/2.06  ** KEPT (pick-wt=31): 57 [copy,56,demod,16,16,16,16] l(A,B,b(C,m(l(D,E,b(F,m(G,F))),C)))=l(D,E,b(F,m(l(A,B,b(C,m(G,C))),F))).
% 1.84/2.06  ** KEPT (pick-wt=35): 59 [copy,58,demod,16,16,16,16] l(A,B,b(C,m(i2(D,l(E,F,b(G,m(H,G)))),C)))=l(E,F,b(G,m(l(A,B,b(C,m(i2(D,H),C))),G))).
% 1.84/2.06  ** KEPT (pick-wt=31): 61 [copy,60,demod,16,16] r(A,B,i1(C,i2(D,l(E,F,b(G,m(H,G))))))=l(E,F,b(G,m(r(A,B,i1(C,i2(D,H))),G))).
% 1.84/2.06  ** KEPT (pick-wt=31): 63 [copy,62,demod,16,16] l(A,B,i1(C,b(D,m(r(E,F,i2(G,H)),D))))=r(E,F,i2(G,l(A,B,i1(C,b(D,m(H,D)))))).
% 1.84/2.06  ** KEPT (pick-wt=27): 64 [] l(A,B,i1(C,i2(D,l(E,F,i1(G,H)))))=l(E,F,i1(G,l(A,B,i1(C,i2(D,H))))).
% 1.84/2.06  ** KEPT (pick-wt=31): 66 [copy,65,demod,16,16] l(A,B,i2(C,b(D,m(l(E,F,i2(G,H)),D))))=l(E,F,i2(G,l(A,B,i2(C,b(D,m(H,D)))))).
% 1.84/2.06  ** KEPT (pick-wt=31): 68 [copy,67,demod,16,16] r(A,B,i1(C,i1(D,l(E,F,b(G,m(H,G))))))=l(E,F,b(G,m(r(A,B,i1(C,i1(D,H))),G))).
% 1.84/2.06  ** KEPT (pick-wt=31): 70 [copy,69,demod,16,16] r(A,B,i2(C,b(D,m(r(E,F,i2(G,H)),D))))=r(E,F,i2(G,r(A,B,i2(C,b(D,m(H,D)))))).
% 1.84/2.06  ** KEPT (pick-wt=31): 72 [copy,71,demod,16,16] r(A,B,i1(C,b(D,m(r(E,F,j2(G,H)),D))))=r(E,F,j2(G,r(A,B,i1(C,b(D,m(H,D)))))).
% 1.84/2.06  ** KEPT (pick-wt=31): 74 [copy,73,demod,16,16] l(A,B,b(C,m(i2(D,r(E,F,i2(G,H))),C)))=r(E,F,i2(G,l(A,B,b(C,m(i2(D,H),C))))).
% 1.84/2.06    Following clause subsumed by 2 during input processing: 0 [copy,2,flip.1] A=A.
% 1.84/2.06  >>>> Starting back demodulation with 4.
% 1.84/2.06  >>>> Starting back demodulation with 6.
% 1.84/2.06  >>>> Starting back demodulation with 8.
% 1.84/2.06  >>>> Starting back demodulation with 10.
% 1.84/2.06  >>>> Starting back demodulation with 12.
% 1.84/2.06  >>>> Starting back demodulation with 14.
% 1.84/2.06  >>>> Starting back demodulation with 16.
% 1.84/2.06  >>>> Starting back demodulation with 19.
% 1.84/2.06  >>>> Starting back demodulation with 22.
% 1.84/2.06  >>>> Starting back demodulation with 25.
% 1.84/2.06  >>>> Starting back demodulation with 28.
% 1.84/2.06  >>>> Starting back demodulation with 31.
% 1.84/2.06  >>>> Starting back demodulation with 34.
% 1.84/2.06  >>>> Starting back demodulation with 36.
% 1.84/2.06  >>>> Starting back demodulation with 38.
% 1.84/2.06  ** KEPT (pick-wt=19): 75 [copy,40,flip.1] i1(A,b(B,m(i2(C,D),B)))=i2(C,i1(A,b(B,m(D,B)))).
% 1.84/2.06  >>>> Starting back demodulation with 43.
% 1.84/2.06  ** KEPT (pick-wt=23): 76 [copy,45,flip.1] i2(A,j2(B,i2(C,b(D,m(E,D)))))=i2(C,b(D,m(i2(A,j2(B,E)),D))).
% 1.84/2.06  ** KEPT (pick-wt=27): 77 [copy,47,flip.1] b(A,m(i2(B,i1(C,b(D,m(E,D)))),A))=i1(C,b(D,m(b(A,m(i2(B,E),A)),D))).
% 1.84/2.06  >>>> Starting back demodulation with 50.
% 1.84/2.06  ** KEPT (pick-wt=23): 78 [copy,52,flip.1] j2(A,b(B,m(i2(C,j2(D,E)),B)))=i2(C,j2(D,j2(A,b(B,m(E,B))))).
% 1.84/2.06  ** KEPT (pick-wt=21): 79 [copy,53,flip.1] i1(A,i1(B,r(C,D,i1(E,F))))=r(C,D,i1(E,i1(A,i1(B,F)))).
% 1.84/2.06  ** KEPT (pick-wt=21): 80 [copy,54,flip.1] i2(A,i2(B,r(C,D,i2(E,F))))=r(C,D,i2(E,i2(A,i2(B,F)))).
% 1.84/2.06  ** KEPT (pick-wt=23): 81 [copy,55,flip.1] r(A,B,j2(C,l(D,E,i2(F,G))))=l(D,E,i2(F,r(A,B,j2(C,G)))).
% 1.84/2.06    Following clause subsumed by 57 during input processing: 0 [copy,57,flip.1] l(A,B,b(C,m(l(D,E,b(F,m(G,F))),C)))=l(D,E,b(F,m(l(A,B,b(C,m(G,C))),F))).
% 1.84/2.06  ** KEPT (pick-wt=35): 82 [copy,59,flip.1] l(A,B,b(C,m(l(D,E,b(F,m(i2(G,H),F))),C)))=l(D,E,b(F,m(i2(G,l(A,B,b(C,m(H,C)))),F))).
% 1.84/2.06  ** KEPT (pick-wt=31): 83 [copy,61,flip.1] l(A,B,b(C,m(r(D,E,i1(F,i2(G,H))),C)))=r(D,E,i1(F,i2(G,l(A,B,b(C,m(H,C)))))).
% 1.84/2.06  ** KEPT (pick-wt=31): 84 [copy,63,flip.1] r(A,B,i2(C,l(D,E,i1(F,b(G,m(H,G))))))=l(D,E,i1(F,b(G,m(r(A,B,i2(C,H)),G)))).
% 1.84/2.06  ** KEPT (pick-wt=27): 85 [copy,64,flip.1] l(A,B,i1(C,l(D,E,i1(F,i2(G,H)))))=l(D,E,i1(F,i2(G,l(A,B,i1(C,H))))).
% 1.84/2.06  ** KEPT (pick-wt=31): 86 [copy,66,flip.1] l(A,B,i2(C,l(D,E,i2(F,b(G,m(H,G))))))=l(D,E,i2(F,b(G,m(l(A,B,i2(C,H)),G)))).
% 1.84/2.06  ** KEPT (pick-wt=31): 87 [copy,68,flip.1] l(A,B,b(C,m(r(D,E,i1(F,i1(G,H))),C)))=r(D,E,i1(F,i1(G,l(A,B,b(C,m(H,C)))))).
% 1.84/2.06  ** KEPT (pick-wt=31): 88 [copy,70,flip.1] r(A,B,i2(C,r(D,E,i2(F,b(G,m(H,G))))))=r(D,E,i2(F,b(G,m(r(A,B,i2(C,H)),G)))).
% 1.84/2.06  ** KEPT (pick-wt=31): 89 [copy,72,flip.1] r(A,B,j2(C,r(D,E,i1(F,b(G,m(H,G))))))=r(D,E,i1(F,b(G,m(r(A,B,j2(C,H)),G)))).
% 1.84/2.06  ** KEPT (pick-wt=31): 90 [copy,74,flip.1] r(A,B,i2(C,l(D,E,b(F,m(i2(G,H),F)))))=l(D,E,b(F,m(i2(G,r(A,B,i2(C,H))),F))).
% 1.84/2.06    Following clause subsumed by 40 during input processing: 0 [copy,75,flip.1] i2(A,i1(B,b(C,m(D,C))))=i1(B,b(C,m(i2(A,D),C))).
% 1.84/2.06    Following clause subsumed by 45 during input processing: 0 [copy,76,flip.1] i2(A,b(B,m(i2(C,j2(D,E)),B)))=i2(C,j2(D,i2(A,b(B,m(E,B))))).
% 1.84/2.06    Following clause subsumed by 47 during input processing: 0 [copy,77,flip.1] i1(A,b(B,m(b(C,m(i2(D,E),C)),B)))=b(C,m(i2(D,i1(A,b(B,m(E,B)))),C)).
% 1.84/2.06    Following clause subsumed by 52 during input processing: 0 [copy,78,flip.1] i2(A,j2(B,j2(C,b(D,m(E,D)))))=j2(C,b(D,m(i2(A,j2(B,E)),D))).
% 1.84/2.06    Following clause subsumed by 53 during input processing: 0 [copy,79,flip.1] r(A,B,i1(C,i1(D,i1(E,F))))=i1(D,i1(E,r(A,B,i1(C,F)))).
% 1.84/2.06    Following clause subsumed by 54 during input processing: 0 [copy,80,flip.1] r(A,B,i2(C,i2(D,i2(E,F))))=i2(D,i2(E,r(A,B,i2(C,F)))).
% 1.84/2.06    Following clause subsumed by 55 during input processing: 0 [copy,81,flip.1] l(A,B,i2(C,r(D,E,j2(F,G))))=r(D,E,j2(F,l(A,B,i2(C,G)))).
% 1.84/2.06    Following clause subsumed by 59 during input processing: 0 [copy,82,flip.1] l(A,B,b(C,m(i2(D,l(E,F,b(G,m(H,G)))),C)))=l(E,F,b(G,m(l(A,B,b(C,m(i2(D,H),C))),G))).
% 1.84/2.06    Following clause subsumed by 61 during input processing: 0 [copy,83,flip.1] r(A,B,i1(C,i2(D,l(E,F,b(G,m(H,G))))))=l(E,F,b(G,m(r(A,B,i1(C,i2(D,H))),G))).
% 1.84/2.06    Following clause subsumed by 63 during input processing: 0 [copy,84,flip.1] l(A,B,i1(C,b(D,m(r(E,F,i2(G,H)),D))))=r(E,F,i2(G,l(A,B,i1(C,b(D,m(H,D)))))).
% 1.84/2.06    Following clause subsumed by 64 during input processing: 0 [copy,85,flip.1] l(A,B,i1(C,i2(D,l(E,F,i1(G,H)))))=l(E,F,i1(G,l(A,B,i1(C,i2(D,H))))).
% 1.84/2.06    Following clause subsumed by 66 during input processing: 0 [copy,86,flip.1] l(A,B,i2(C,b(D,m(l(E,F,i2(G,H)),D))))=l(E,F,i2(G,l(A,B,i2(C,b(D,m(H,D)))))).
% 1.84/2.06    Following clause subsumed by 68 during input processing: 0 [copy,87,flip.1] r(A,B,i1(C,i1(D,l(E,F,b(G,m(H,G))))))=l(E,F,b(G,m(r(A,B,i1(C,i1(D,H))),G))).
% 1.84/2.06    Following clause subsumed by 70 during input processing: 0 [copy,88,flip.1] r(A,B,i2(C,b(D,m(r(E,F,i2(G,H)),D))))=r(E,F,i2(G,r(A,B,i2(C,b(D,m(H,D)))))).
% 1.84/2.06    Following clause subsumed by 72 during input processing: 0 [copy,89,flip.1] r(A,B,i1(C,b(D,m(r(E,F,j2(G,H)),D))))=r(E,F,j2(G,r(A,B,i1(C,b(D,m(H,D)))))).
% 1.84/2.06    Following clause subsumed by 74 during input processing: 0 [copy,90,flip.1] l(A,B,b(C,m(i2(D,r(E,F,i2(G,H))),C)))=r(E,F,i2(G,l(A,B,b(C,m(i2(D,H),C))))).
% 1.92/2.11  
% 1.92/2.11  ======= end of input processing =======
% 1.92/2.11  
% 1.92/2.11  =========== start of search ===========
% 1.92/2.11  
% 1.92/2.11  
% 1.92/2.11  Resetting weight limit to 5.
% 1.92/2.11  
% 1.92/2.11  
% 1.92/2.11  Resetting weight limit to 5.
% 1.92/2.11  
% 1.92/2.11  sos_size=47
% 1.92/2.11  
% 1.92/2.11  Search stopped because sos empty.
% 1.92/2.11  
% 1.92/2.11  
% 1.92/2.11  Search stopped because sos empty.
% 1.92/2.11  
% 1.92/2.11  ============ end of search ============
% 1.92/2.11  
% 1.92/2.11  -------------- statistics -------------
% 1.92/2.11  clauses given                 68
% 1.92/2.11  clauses generated           1538
% 1.92/2.11  clauses kept                 100
% 1.92/2.11  clauses forward subsumed     175
% 1.92/2.11  clauses back subsumed          0
% 1.92/2.11  Kbytes malloced            10742
% 1.92/2.11  
% 1.92/2.11  ----------- times (seconds) -----------
% 1.92/2.11  user CPU time          0.04          (0 hr, 0 min, 0 sec)
% 1.92/2.11  system CPU time        0.01          (0 hr, 0 min, 0 sec)
% 1.92/2.11  wall-clock time        2             (0 hr, 0 min, 2 sec)
% 1.92/2.11  
% 1.92/2.11  Process 18585 finished Wed Jul 27 05:25:01 2022
% 1.92/2.11  Otter interrupted
% 1.92/2.11  PROOF NOT FOUND
%------------------------------------------------------------------------------