TSTP Solution File: LCL264-3 by Otter---3.3

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Otter---3.3
% Problem  : LCL264-3 : TPTP v8.1.0. Released v2.3.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : otter-tptp-script %s

% Computer : n021.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 13:04:05 EDT 2022

% Result   : Unknown 1.72s 1.90s
% Output   : None 
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----No solution output by system
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.04/0.12  % Problem  : LCL264-3 : TPTP v8.1.0. Released v2.3.0.
% 0.04/0.13  % Command  : otter-tptp-script %s
% 0.13/0.34  % Computer : n021.cluster.edu
% 0.13/0.34  % Model    : x86_64 x86_64
% 0.13/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.34  % Memory   : 8042.1875MB
% 0.13/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.34  % CPULimit : 300
% 0.13/0.34  % WCLimit  : 300
% 0.13/0.34  % DateTime : Wed Jul 27 09:21:53 EDT 2022
% 0.13/0.34  % CPUTime  : 
% 1.72/1.90  ----- Otter 3.3f, August 2004 -----
% 1.72/1.90  The process was started by sandbox on n021.cluster.edu,
% 1.72/1.90  Wed Jul 27 09:21:53 2022
% 1.72/1.90  The command was "./otter".  The process ID is 7542.
% 1.72/1.90  
% 1.72/1.90  set(prolog_style_variables).
% 1.72/1.90  set(auto).
% 1.72/1.90     dependent: set(auto1).
% 1.72/1.90     dependent: set(process_input).
% 1.72/1.90     dependent: clear(print_kept).
% 1.72/1.90     dependent: clear(print_new_demod).
% 1.72/1.90     dependent: clear(print_back_demod).
% 1.72/1.90     dependent: clear(print_back_sub).
% 1.72/1.90     dependent: set(control_memory).
% 1.72/1.90     dependent: assign(max_mem, 12000).
% 1.72/1.90     dependent: assign(pick_given_ratio, 4).
% 1.72/1.90     dependent: assign(stats_level, 1).
% 1.72/1.90     dependent: assign(max_seconds, 10800).
% 1.72/1.90  clear(print_given).
% 1.72/1.90  
% 1.72/1.90  list(usable).
% 1.72/1.90  0 [] A=A.
% 1.72/1.90  0 [] axiom(implies(or(A,A),A)).
% 1.72/1.90  0 [] axiom(implies(A,or(B,A))).
% 1.72/1.90  0 [] axiom(implies(or(A,B),or(B,A))).
% 1.72/1.90  0 [] axiom(implies(or(A,or(B,C)),or(B,or(A,C)))).
% 1.72/1.90  0 [] axiom(implies(implies(A,B),implies(or(C,A),or(C,B)))).
% 1.72/1.90  0 [] implies(X,Y)=or(not(X),Y).
% 1.72/1.90  0 [] theorem(X)| -axiom(X).
% 1.72/1.90  0 [] theorem(X)| -theorem(implies(Y,X))| -theorem(Y).
% 1.72/1.90  0 [] and(P,Q)=not(or(not(P),not(Q))).
% 1.72/1.90  0 [] e_quivalent(P,Q)=and(implies(P,Q),implies(Q,P)).
% 1.72/1.90  0 [] -theorem(e_quivalent(e_quivalent(p,q),e_quivalent(not(p),not(q)))).
% 1.72/1.90  end_of_list.
% 1.72/1.90  
% 1.72/1.90  SCAN INPUT: prop=0, horn=1, equality=1, symmetry=0, max_lits=3.
% 1.72/1.90  
% 1.72/1.90  This is a Horn set with equality.  The strategy will be
% 1.72/1.90  Knuth-Bendix and hyper_res, with positive clauses in
% 1.72/1.90  sos and nonpositive clauses in usable.
% 1.72/1.90  
% 1.72/1.90     dependent: set(knuth_bendix).
% 1.72/1.90     dependent: set(anl_eq).
% 1.72/1.90     dependent: set(para_from).
% 1.72/1.90     dependent: set(para_into).
% 1.72/1.90     dependent: clear(para_from_right).
% 1.72/1.90     dependent: clear(para_into_right).
% 1.72/1.90     dependent: set(para_from_vars).
% 1.72/1.90     dependent: set(eq_units_both_ways).
% 1.72/1.90     dependent: set(dynamic_demod_all).
% 1.72/1.90     dependent: set(dynamic_demod).
% 1.72/1.90     dependent: set(order_eq).
% 1.72/1.90     dependent: set(back_demod).
% 1.72/1.90     dependent: set(lrpo).
% 1.72/1.90     dependent: set(hyper_res).
% 1.72/1.90     dependent: clear(order_hyper).
% 1.72/1.90  
% 1.72/1.90  ------------> process usable:
% 1.72/1.90  ** KEPT (pick-wt=4): 1 [] theorem(A)| -axiom(A).
% 1.72/1.90  ** KEPT (pick-wt=8): 2 [] theorem(A)| -theorem(implies(B,A))| -theorem(B).
% 1.72/1.90  ** KEPT (pick-wt=10): 3 [] -theorem(e_quivalent(e_quivalent(p,q),e_quivalent(not(p),not(q)))).
% 1.72/1.90  
% 1.72/1.90  ------------> process sos:
% 1.72/1.90  ** KEPT (pick-wt=3): 4 [] A=A.
% 1.72/1.90  ** KEPT (pick-wt=6): 5 [] axiom(implies(or(A,A),A)).
% 1.72/1.90  ** KEPT (pick-wt=6): 6 [] axiom(implies(A,or(B,A))).
% 1.72/1.90  ** KEPT (pick-wt=8): 7 [] axiom(implies(or(A,B),or(B,A))).
% 1.72/1.90  ** KEPT (pick-wt=12): 8 [] axiom(implies(or(A,or(B,C)),or(B,or(A,C)))).
% 1.72/1.90  ** KEPT (pick-wt=12): 9 [] axiom(implies(implies(A,B),implies(or(C,A),or(C,B)))).
% 1.72/1.90  ** KEPT (pick-wt=8): 11 [copy,10,flip.1] or(not(A),B)=implies(A,B).
% 1.72/1.90  ---> New Demodulator: 12 [new_demod,11] or(not(A),B)=implies(A,B).
% 1.72/1.90  ** KEPT (pick-wt=9): 14 [copy,13,demod,12,flip.1] not(implies(A,not(B)))=and(A,B).
% 1.72/1.90  ---> New Demodulator: 15 [new_demod,14] not(implies(A,not(B)))=and(A,B).
% 1.72/1.90  ** KEPT (pick-wt=11): 17 [copy,16,flip.1] and(implies(A,B),implies(B,A))=e_quivalent(A,B).
% 1.72/1.90  ---> New Demodulator: 18 [new_demod,17] and(implies(A,B),implies(B,A))=e_quivalent(A,B).
% 1.72/1.90    Following clause subsumed by 4 during input processing: 0 [copy,4,flip.1] A=A.
% 1.72/1.90  >>>> Starting back demodulation with 12.
% 1.72/1.90  >>>> Starting back demodulation with 15.
% 1.72/1.90  >>>> Starting back demodulation with 18.
% 1.72/1.90  
% 1.72/1.90  ======= end of input processing =======
% 1.72/1.90  
% 1.72/1.90  =========== start of search ===========
% 1.72/1.90  
% 1.72/1.90  
% 1.72/1.90  Resetting weight limit to 9.
% 1.72/1.90  
% 1.72/1.90  
% 1.72/1.90  Resetting weight limit to 9.
% 1.72/1.90  
% 1.72/1.90  sos_size=159
% 1.72/1.90  
% 1.72/1.90  
% 1.72/1.90  Resetting weight limit to 7.
% 1.72/1.90  
% 1.72/1.90  
% 1.72/1.90  Resetting weight limit to 7.
% 1.72/1.90  
% 1.72/1.90  sos_size=173
% 1.72/1.90  
% 1.72/1.90  Search stopped because sos empty.
% 1.72/1.90  
% 1.72/1.90  
% 1.72/1.90  Search stopped because sos empty.
% 1.72/1.90  
% 1.72/1.90  ============ end of search ============
% 1.72/1.90  
% 1.72/1.90  -------------- statistics -------------
% 1.72/1.90  clauses given                272
% 1.72/1.90  clauses generated          17600
% 1.72/1.90  clauses kept                 301
% 1.72/1.90  clauses forward subsumed    5368
% 1.72/1.90  clauses back subsumed         29
% 1.72/1.90  Kbytes malloced             6835
% 1.72/1.90  
% 1.72/1.90  ----------- times (seconds) -----------
% 1.72/1.90  user CPU time          0.07          (0 hr, 0 min, 0 sec)
% 1.72/1.90  system CPU time        0.01          (0 hr, 0 min, 0 sec)
% 1.72/1.90  wall-clock time        1             (0 hr, 0 min, 1 sec)
% 1.72/1.90  
% 1.72/1.90  Process 7542 finished Wed Jul 27 09:21:54 2022
% 1.72/1.90  Otter interrupted
% 1.72/1.90  PROOF NOT FOUND
%------------------------------------------------------------------------------