TSTP Solution File: GRP777+1 by Otter---3.3

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Otter---3.3
% Problem  : GRP777+1 : TPTP v8.1.0. Released v4.1.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : otter-tptp-script %s

% Computer : n008.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 12:57:48 EDT 2022

% Result   : Unknown 2.12s 2.30s
% Output   : None 
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----No solution output by system
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.10/0.12  % Problem  : GRP777+1 : TPTP v8.1.0. Released v4.1.0.
% 0.10/0.13  % Command  : otter-tptp-script %s
% 0.13/0.33  % Computer : n008.cluster.edu
% 0.13/0.33  % Model    : x86_64 x86_64
% 0.13/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.33  % Memory   : 8042.1875MB
% 0.13/0.33  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.33  % CPULimit : 300
% 0.13/0.33  % WCLimit  : 300
% 0.13/0.33  % DateTime : Wed Jul 27 05:06:08 EDT 2022
% 0.13/0.34  % CPUTime  : 
% 1.77/1.96  ----- Otter 3.3f, August 2004 -----
% 1.77/1.96  The process was started by sandbox2 on n008.cluster.edu,
% 1.77/1.96  Wed Jul 27 05:06:08 2022
% 1.77/1.96  The command was "./otter".  The process ID is 3071.
% 1.77/1.96  
% 1.77/1.96  set(prolog_style_variables).
% 1.77/1.96  set(auto).
% 1.77/1.96     dependent: set(auto1).
% 1.77/1.96     dependent: set(process_input).
% 1.77/1.96     dependent: clear(print_kept).
% 1.77/1.96     dependent: clear(print_new_demod).
% 1.77/1.96     dependent: clear(print_back_demod).
% 1.77/1.96     dependent: clear(print_back_sub).
% 1.77/1.96     dependent: set(control_memory).
% 1.77/1.96     dependent: assign(max_mem, 12000).
% 1.77/1.96     dependent: assign(pick_given_ratio, 4).
% 1.77/1.96     dependent: assign(stats_level, 1).
% 1.77/1.96     dependent: assign(max_seconds, 10800).
% 1.77/1.96  clear(print_given).
% 1.77/1.96  
% 1.77/1.96  formula_list(usable).
% 1.77/1.96  all A (A=A).
% 1.77/1.96  all B A (difference(A,product(A,B))=B).
% 1.77/1.96  all B A (product(A,difference(A,B))=B).
% 1.77/1.96  all B A (quotient(product(A,B),B)=A).
% 1.77/1.96  all B A (product(quotient(A,B),B)=A).
% 1.77/1.96  all D C B A (product(product(A,B),product(C,D))=product(product(A,C),product(B,D))).
% 1.77/1.96  all A (product(A,A)=A).
% 1.77/1.96  all B A (product(product(product(A,B),B),product(B,product(B,A)))=B).
% 1.77/1.96  all C B A (bigC(A,B,C)=product(product(A,B),product(C,A))).
% 1.77/1.96  product(product(a,c),product(c,b))=product(a,b).
% 1.77/1.96  -(all X0 (bigC(a,b,X0)=bigC(c,c,X0))).
% 1.77/1.96  end_of_list.
% 1.77/1.96  
% 1.77/1.96  -------> usable clausifies to:
% 1.77/1.96  
% 1.77/1.96  list(usable).
% 1.77/1.96  0 [] A=A.
% 1.77/1.96  0 [] difference(A,product(A,B))=B.
% 1.77/1.96  0 [] product(A,difference(A,B))=B.
% 1.77/1.96  0 [] quotient(product(A,B),B)=A.
% 1.77/1.96  0 [] product(quotient(A,B),B)=A.
% 1.77/1.96  0 [] product(product(A,B),product(C,D))=product(product(A,C),product(B,D)).
% 1.77/1.96  0 [] product(A,A)=A.
% 1.77/1.96  0 [] product(product(product(A,B),B),product(B,product(B,A)))=B.
% 1.77/1.96  0 [] bigC(A,B,C)=product(product(A,B),product(C,A)).
% 1.77/1.96  0 [] product(product(a,c),product(c,b))=product(a,b).
% 1.77/1.96  0 [] bigC(a,b,$c1)!=bigC(c,c,$c1).
% 1.77/1.96  end_of_list.
% 1.77/1.96  
% 1.77/1.96  SCAN INPUT: prop=0, horn=1, equality=1, symmetry=0, max_lits=1.
% 1.77/1.96  
% 1.77/1.96  All clauses are units, and equality is present; the
% 1.77/1.96  strategy will be Knuth-Bendix with positive clauses in sos.
% 1.77/1.96  
% 1.77/1.96     dependent: set(knuth_bendix).
% 1.77/1.96     dependent: set(anl_eq).
% 1.77/1.96     dependent: set(para_from).
% 1.77/1.96     dependent: set(para_into).
% 1.77/1.96     dependent: clear(para_from_right).
% 1.77/1.96     dependent: clear(para_into_right).
% 1.77/1.96     dependent: set(para_from_vars).
% 1.77/1.96     dependent: set(eq_units_both_ways).
% 1.77/1.96     dependent: set(dynamic_demod_all).
% 1.77/1.96     dependent: set(dynamic_demod).
% 1.77/1.96     dependent: set(order_eq).
% 1.77/1.96     dependent: set(back_demod).
% 1.77/1.96     dependent: set(lrpo).
% 1.77/1.96  
% 1.77/1.96  ------------> process usable:
% 1.77/1.96  ** KEPT (pick-wt=9): 2 [copy,1,flip.1] bigC(c,c,$c1)!=bigC(a,b,$c1).
% 1.77/1.96  
% 1.77/1.96  ------------> process sos:
% 1.77/1.96  ** KEPT (pick-wt=3): 3 [] A=A.
% 1.77/1.96  ** KEPT (pick-wt=7): 4 [] difference(A,product(A,B))=B.
% 1.77/1.96  ---> New Demodulator: 5 [new_demod,4] difference(A,product(A,B))=B.
% 1.77/1.96  ** KEPT (pick-wt=7): 6 [] product(A,difference(A,B))=B.
% 1.77/1.96  ---> New Demodulator: 7 [new_demod,6] product(A,difference(A,B))=B.
% 1.77/1.96  ** KEPT (pick-wt=7): 8 [] quotient(product(A,B),B)=A.
% 1.77/1.96  ---> New Demodulator: 9 [new_demod,8] quotient(product(A,B),B)=A.
% 1.77/1.96  ** KEPT (pick-wt=7): 10 [] product(quotient(A,B),B)=A.
% 1.77/1.96  ---> New Demodulator: 11 [new_demod,10] product(quotient(A,B),B)=A.
% 1.77/1.96  ** KEPT (pick-wt=15): 12 [] product(product(A,B),product(C,D))=product(product(A,C),product(B,D)).
% 1.77/1.96  ** KEPT (pick-wt=5): 13 [] product(A,A)=A.
% 1.77/1.96  ---> New Demodulator: 14 [new_demod,13] product(A,A)=A.
% 1.77/1.96  ** KEPT (pick-wt=13): 15 [] product(product(product(A,B),B),product(B,product(B,A)))=B.
% 1.77/1.96  ---> New Demodulator: 16 [new_demod,15] product(product(product(A,B),B),product(B,product(B,A)))=B.
% 1.77/1.96  ** KEPT (pick-wt=12): 18 [copy,17,flip.1] product(product(A,B),product(C,A))=bigC(A,B,C).
% 1.77/1.96  ---> New Demodulator: 19 [new_demod,18] product(product(A,B),product(C,A))=bigC(A,B,C).
% 1.77/1.96  ** KEPT (pick-wt=11): 20 [] product(product(a,c),product(c,b))=product(a,b).
% 1.77/1.96  ---> New Demodulator: 21 [new_demod,20] product(product(a,c),product(c,b))=product(a,b).
% 1.77/1.96    Following clause subsumed by 3 during input processing: 0 [copy,3,flip.1] A=A.
% 1.77/1.96  >>>> Starting back demodulation with 5.
% 1.77/1.96  >>>> Starting back demodulation with 7.
% 1.77/1.96  >>>> Starting back demodulation with 9.
% 1.77/1.96  >>>> Starting back demodulation with 11.
% 1.77/1.96    Following clause subsumed by 12 during input processing: 0 [copy,12,flip.1] product(product(A,B),product(C,D))=product(product(A,C),product(B,D)).
% 1.77/1.96  >>>> Starting back demodulation with 14.
% 1.77/1.96  >>>> Starting back demodulation with 16.
% 2.12/2.30  >>>> Starting back demodulation with 19.
% 2.12/2.30  >>>> Starting back demodulation with 21.
% 2.12/2.30  
% 2.12/2.30  ======= end of input processing =======
% 2.12/2.30  
% 2.12/2.30  =========== start of search ===========
% 2.12/2.30  
% 2.12/2.30  
% 2.12/2.30  Resetting weight limit to 10.
% 2.12/2.30  
% 2.12/2.30  
% 2.12/2.30  Resetting weight limit to 10.
% 2.12/2.30  
% 2.12/2.30  sos_size=57
% 2.12/2.30  
% 2.12/2.30  Search stopped because sos empty.
% 2.12/2.30  
% 2.12/2.30  
% 2.12/2.30  Search stopped because sos empty.
% 2.12/2.30  
% 2.12/2.30  ============ end of search ============
% 2.12/2.30  
% 2.12/2.30  -------------- statistics -------------
% 2.12/2.30  clauses given                 84
% 2.12/2.30  clauses generated           9354
% 2.12/2.30  clauses kept                 218
% 2.12/2.30  clauses forward subsumed     538
% 2.12/2.30  clauses back subsumed          0
% 2.12/2.30  Kbytes malloced             6835
% 2.12/2.30  
% 2.12/2.30  ----------- times (seconds) -----------
% 2.12/2.30  user CPU time          0.33          (0 hr, 0 min, 0 sec)
% 2.12/2.30  system CPU time        0.00          (0 hr, 0 min, 0 sec)
% 2.12/2.30  wall-clock time        2             (0 hr, 0 min, 2 sec)
% 2.12/2.30  
% 2.12/2.30  Process 3071 finished Wed Jul 27 05:06:10 2022
% 2.12/2.30  Otter interrupted
% 2.12/2.30  PROOF NOT FOUND
%------------------------------------------------------------------------------