TSTP Solution File: LCL113-10 by Otter---3.3

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Otter---3.3
% Problem  : LCL113-10 : TPTP v8.1.0. Released v7.3.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : otter-tptp-script %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  : 300s
% DateTime : Wed Jul 27 13:03:35 EDT 2022

% Result   : Unknown 2.72s 2.92s
% Output   : None 
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----No solution output by system
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.12  % Problem  : LCL113-10 : TPTP v8.1.0. Released v7.3.0.
% 0.07/0.13  % Command  : otter-tptp-script %s
% 0.12/0.34  % Computer : n011.cluster.edu
% 0.12/0.34  % Model    : x86_64 x86_64
% 0.12/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.34  % Memory   : 8042.1875MB
% 0.12/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.34  % CPULimit : 300
% 0.12/0.34  % WCLimit  : 300
% 0.12/0.34  % DateTime : Wed Jul 27 09:23:10 EDT 2022
% 0.12/0.34  % CPUTime  : 
% 2.72/2.91  ----- Otter 3.3f, August 2004 -----
% 2.72/2.91  The process was started by sandbox on n011.cluster.edu,
% 2.72/2.91  Wed Jul 27 09:23:10 2022
% 2.72/2.91  The command was "./otter".  The process ID is 7982.
% 2.72/2.91  
% 2.72/2.91  set(prolog_style_variables).
% 2.72/2.91  set(auto).
% 2.72/2.91     dependent: set(auto1).
% 2.72/2.91     dependent: set(process_input).
% 2.72/2.91     dependent: clear(print_kept).
% 2.72/2.91     dependent: clear(print_new_demod).
% 2.72/2.91     dependent: clear(print_back_demod).
% 2.72/2.91     dependent: clear(print_back_sub).
% 2.72/2.91     dependent: set(control_memory).
% 2.72/2.91     dependent: assign(max_mem, 12000).
% 2.72/2.91     dependent: assign(pick_given_ratio, 4).
% 2.72/2.91     dependent: assign(stats_level, 1).
% 2.72/2.91     dependent: assign(max_seconds, 10800).
% 2.72/2.91  clear(print_given).
% 2.72/2.91  
% 2.72/2.91  list(usable).
% 2.72/2.91  0 [] A=A.
% 2.72/2.91  0 [] ife_q(A,A,B,C)=B.
% 2.72/2.91  0 [] ife_q(is_a_theorem(implies(X,Y)),true,ife_q(is_a_theorem(X),true,is_a_theorem(Y),true),true)=true.
% 2.72/2.91  0 [] is_a_theorem(implies(X,implies(Y,X)))=true.
% 2.72/2.91  0 [] is_a_theorem(implies(implies(X,Y),implies(implies(Y,Z),implies(X,Z))))=true.
% 2.72/2.91  0 [] is_a_theorem(implies(implies(implies(X,Y),Y),implies(implies(Y,X),X)))=true.
% 2.72/2.91  0 [] is_a_theorem(implies(implies(not(X),not(Y)),implies(Y,X)))=true.
% 2.72/2.91  0 [] is_a_theorem(implies(implies(not(a),b),implies(not(b),a)))!=true.
% 2.72/2.91  end_of_list.
% 2.72/2.91  
% 2.72/2.91  SCAN INPUT: prop=0, horn=1, equality=1, symmetry=0, max_lits=1.
% 2.72/2.91  
% 2.72/2.91  All clauses are units, and equality is present; the
% 2.72/2.91  strategy will be Knuth-Bendix with positive clauses in sos.
% 2.72/2.91  
% 2.72/2.91     dependent: set(knuth_bendix).
% 2.72/2.91     dependent: set(anl_eq).
% 2.72/2.91     dependent: set(para_from).
% 2.72/2.91     dependent: set(para_into).
% 2.72/2.91     dependent: clear(para_from_right).
% 2.72/2.91     dependent: clear(para_into_right).
% 2.72/2.91     dependent: set(para_from_vars).
% 2.72/2.91     dependent: set(eq_units_both_ways).
% 2.72/2.91     dependent: set(dynamic_demod_all).
% 2.72/2.91     dependent: set(dynamic_demod).
% 2.72/2.91     dependent: set(order_eq).
% 2.72/2.91     dependent: set(back_demod).
% 2.72/2.91     dependent: set(lrpo).
% 2.72/2.91  
% 2.72/2.91  ------------> process usable:
% 2.72/2.91  ** KEPT (pick-wt=12): 1 [] is_a_theorem(implies(implies(not(a),b),implies(not(b),a)))!=true.
% 2.72/2.91  
% 2.72/2.91  ------------> process sos:
% 2.72/2.91  ** KEPT (pick-wt=3): 2 [] A=A.
% 2.72/2.91  ** KEPT (pick-wt=7): 3 [] ife_q(A,A,B,C)=B.
% 2.72/2.91  ---> New Demodulator: 4 [new_demod,3] ife_q(A,A,B,C)=B.
% 2.72/2.91  ** KEPT (pick-wt=16): 5 [] ife_q(is_a_theorem(implies(A,B)),true,ife_q(is_a_theorem(A),true,is_a_theorem(B),true),true)=true.
% 2.72/2.91  ---> New Demodulator: 6 [new_demod,5] ife_q(is_a_theorem(implies(A,B)),true,ife_q(is_a_theorem(A),true,is_a_theorem(B),true),true)=true.
% 2.72/2.91  ** KEPT (pick-wt=8): 7 [] is_a_theorem(implies(A,implies(B,A)))=true.
% 2.72/2.91  ---> New Demodulator: 8 [new_demod,7] is_a_theorem(implies(A,implies(B,A)))=true.
% 2.72/2.91  ** KEPT (pick-wt=14): 9 [] is_a_theorem(implies(implies(A,B),implies(implies(B,C),implies(A,C))))=true.
% 2.72/2.91  ---> New Demodulator: 10 [new_demod,9] is_a_theorem(implies(implies(A,B),implies(implies(B,C),implies(A,C))))=true.
% 2.72/2.91  ** KEPT (pick-wt=14): 11 [] is_a_theorem(implies(implies(implies(A,B),B),implies(implies(B,A),A)))=true.
% 2.72/2.91  ---> New Demodulator: 12 [new_demod,11] is_a_theorem(implies(implies(implies(A,B),B),implies(implies(B,A),A)))=true.
% 2.72/2.91  ** KEPT (pick-wt=12): 13 [] is_a_theorem(implies(implies(not(A),not(B)),implies(B,A)))=true.
% 2.72/2.91  ---> New Demodulator: 14 [new_demod,13] is_a_theorem(implies(implies(not(A),not(B)),implies(B,A)))=true.
% 2.72/2.91    Following clause subsumed by 2 during input processing: 0 [copy,2,flip.1] A=A.
% 2.72/2.91  >>>> Starting back demodulation with 4.
% 2.72/2.91  >>>> Starting back demodulation with 6.
% 2.72/2.91  >>>> Starting back demodulation with 8.
% 2.72/2.91  >>>> Starting back demodulation with 10.
% 2.72/2.91  >>>> Starting back demodulation with 12.
% 2.72/2.91  >>>> Starting back demodulation with 14.
% 2.72/2.91  
% 2.72/2.91  ======= end of input processing =======
% 2.72/2.91  
% 2.72/2.91  =========== start of search ===========
% 2.72/2.91  
% 2.72/2.91  
% 2.72/2.91  Resetting weight limit to 15.
% 2.72/2.91  
% 2.72/2.91  
% 2.72/2.91  Resetting weight limit to 15.
% 2.72/2.91  
% 2.72/2.91  sos_size=357
% 2.72/2.91  
% 2.72/2.91  
% 2.72/2.91  Resetting weight limit to 14.
% 2.72/2.91  
% 2.72/2.91  
% 2.72/2.91  Resetting weight limit to 14.
% 2.72/2.91  
% 2.72/2.91  sos_size=346
% 2.72/2.91  
% 2.72/2.91  
% 2.72/2.91  Resetting weight limit to 12.
% 2.72/2.91  
% 2.72/2.91  
% 2.72/2.91  Resetting weight limit to 12.
% 2.72/2.91  
% 2.72/2.91  sos_size=349
% 2.72/2.91  
% 2.72/2.91  Search stopped because sos empty.
% 2.72/2.91  
% 2.72/2.91  
% 2.72/2.91  Search stopped because sos empty.
% 2.72/2.91  
% 2.72/2.91  ============ end of search ============
% 2.72/2.91  
% 2.72/2.91  -------------- statistics -------------
% 2.72/2.91  clauses given                715
% 2.72/2.91  clauses generated         283461
% 2.72/2.91  clauses kept                 724
% 2.72/2.91  clauses forward subsumed  266213
% 2.72/2.91  clauses back subsumed          0
% 2.72/2.91  Kbytes malloced             9765
% 2.72/2.91  
% 2.72/2.91  ----------- times (seconds) -----------
% 2.72/2.91  user CPU time          0.78          (0 hr, 0 min, 0 sec)
% 2.72/2.91  system CPU time        0.00          (0 hr, 0 min, 0 sec)
% 2.72/2.91  wall-clock time        3             (0 hr, 0 min, 3 sec)
% 2.72/2.91  
% 2.72/2.91  Process 7982 finished Wed Jul 27 09:23:13 2022
% 2.72/2.92  Otter interrupted
% 2.72/2.92  PROOF NOT FOUND
%------------------------------------------------------------------------------