TSTP Solution File: LDA006-2 by Otter---3.3

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Otter---3.3
% Problem  : LDA006-2 : TPTP v8.1.0. Bugfixed v2.6.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : otter-tptp-script %s

% Computer : n015.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 13:05:48 EDT 2022

% Result   : Unknown 6.10s 6.28s
% Output   : None 
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----No solution output by system
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.12/0.12  % Problem  : LDA006-2 : TPTP v8.1.0. Bugfixed v2.6.0.
% 0.12/0.13  % Command  : otter-tptp-script %s
% 0.12/0.34  % Computer : n015.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 02:14:41 EDT 2022
% 0.12/0.34  % CPUTime  : 
% 1.63/2.20  ----- Otter 3.3f, August 2004 -----
% 1.63/2.20  The process was started by sandbox2 on n015.cluster.edu,
% 1.63/2.20  Wed Jul 27 02:14:41 2022
% 1.63/2.20  The command was "./otter".  The process ID is 16180.
% 1.63/2.20  
% 1.63/2.20  set(prolog_style_variables).
% 1.63/2.20  set(auto).
% 1.63/2.20     dependent: set(auto1).
% 1.63/2.20     dependent: set(process_input).
% 1.63/2.20     dependent: clear(print_kept).
% 1.63/2.20     dependent: clear(print_new_demod).
% 1.63/2.20     dependent: clear(print_back_demod).
% 1.63/2.20     dependent: clear(print_back_sub).
% 1.63/2.20     dependent: set(control_memory).
% 1.63/2.20     dependent: assign(max_mem, 12000).
% 1.63/2.20     dependent: assign(pick_given_ratio, 4).
% 1.63/2.20     dependent: assign(stats_level, 1).
% 1.63/2.20     dependent: assign(max_seconds, 10800).
% 1.63/2.20  clear(print_given).
% 1.63/2.20  
% 1.63/2.20  list(usable).
% 1.63/2.20  0 [] A=A.
% 1.63/2.20  0 [] f(X,f(Y,Z))=f(f(X,Y),f(X,Z)).
% 1.63/2.20  0 [] a(X,a(Y,Z))=a(f(X,Y),a(X,Z)).
% 1.63/2.20  0 [] critical_point(f(U,V))=a(U,critical_point(V)).
% 1.63/2.20  0 [] -less(X,X).
% 1.63/2.20  0 [] -less(X,Y)|less(a(U,X),a(U,Y)).
% 1.63/2.20  0 [] X=a(U,X)|less(X,a(U,X)).
% 1.63/2.20  0 [] -less(X,critical_point(U))|a(U,X)=X.
% 1.63/2.20  0 [] less(X,critical_point(U))|less(X,a(U,X)).
% 1.63/2.20  0 [] a(U,X)!=X|a(f(V,U),X)=X.
% 1.63/2.20  0 [] tt=f(t,t).
% 1.63/2.20  0 [] st=f(s,t).
% 1.63/2.20  0 [] ts=f(t,s).
% 1.63/2.20  0 [] k=critical_point(t).
% 1.63/2.20  0 [] sk=f(s,k).
% 1.63/2.20  0 [] tk=f(t,k).
% 1.63/2.20  0 [] stk=f(st,k).
% 1.63/2.20  0 [] tsk=f(ts,k).
% 1.63/2.20  0 [] tsk=f(t,skolem).
% 1.63/2.20  end_of_list.
% 1.63/2.20  
% 1.63/2.20  SCAN INPUT: prop=0, horn=0, equality=1, symmetry=0, max_lits=2.
% 1.63/2.20  
% 1.63/2.20  This ia a non-Horn set with equality.  The strategy will be
% 1.63/2.20  Knuth-Bendix, ordered hyper_res, factoring, and unit
% 1.63/2.20  deletion, with positive clauses in sos and nonpositive
% 1.63/2.20  clauses in usable.
% 1.63/2.20  
% 1.63/2.20     dependent: set(knuth_bendix).
% 1.63/2.20     dependent: set(anl_eq).
% 1.63/2.20     dependent: set(para_from).
% 1.63/2.20     dependent: set(para_into).
% 1.63/2.20     dependent: clear(para_from_right).
% 1.63/2.20     dependent: clear(para_into_right).
% 1.63/2.20     dependent: set(para_from_vars).
% 1.63/2.20     dependent: set(eq_units_both_ways).
% 1.63/2.20     dependent: set(dynamic_demod_all).
% 1.63/2.20     dependent: set(dynamic_demod).
% 1.63/2.20     dependent: set(order_eq).
% 1.63/2.20     dependent: set(back_demod).
% 1.63/2.20     dependent: set(lrpo).
% 1.63/2.20     dependent: set(hyper_res).
% 1.63/2.20     dependent: set(unit_deletion).
% 1.63/2.20     dependent: set(factor).
% 1.63/2.20  
% 1.63/2.20  ------------> process usable:
% 1.63/2.20  ** KEPT (pick-wt=3): 1 [] -less(A,A).
% 1.63/2.20  ** KEPT (pick-wt=10): 2 [] -less(A,B)|less(a(C,A),a(C,B)).
% 1.63/2.20  ** KEPT (pick-wt=9): 3 [] -less(A,critical_point(B))|a(B,A)=A.
% 1.63/2.20  ** KEPT (pick-wt=12): 4 [] a(A,B)!=B|a(f(C,A),B)=B.
% 1.63/2.20  
% 1.63/2.20  ------------> process sos:
% 1.63/2.20  ** KEPT (pick-wt=3): 5 [] A=A.
% 1.63/2.20  ** KEPT (pick-wt=13): 7 [copy,6,flip.1] f(f(A,B),f(A,C))=f(A,f(B,C)).
% 1.63/2.20  ---> New Demodulator: 8 [new_demod,7] f(f(A,B),f(A,C))=f(A,f(B,C)).
% 1.63/2.20  ** KEPT (pick-wt=13): 10 [copy,9,flip.1] a(f(A,B),a(A,C))=a(A,a(B,C)).
% 1.63/2.20  ---> New Demodulator: 11 [new_demod,10] a(f(A,B),a(A,C))=a(A,a(B,C)).
% 1.63/2.20  ** KEPT (pick-wt=9): 12 [] critical_point(f(A,B))=a(A,critical_point(B)).
% 1.63/2.20  ---> New Demodulator: 13 [new_demod,12] critical_point(f(A,B))=a(A,critical_point(B)).
% 1.63/2.20  ** KEPT (pick-wt=10): 15 [copy,14,flip.1] a(A,B)=B|less(B,a(A,B)).
% 1.63/2.20  ** KEPT (pick-wt=9): 16 [] less(A,critical_point(B))|less(A,a(B,A)).
% 1.63/2.20  ** KEPT (pick-wt=5): 18 [copy,17,flip.1] f(t,t)=tt.
% 1.63/2.20  ---> New Demodulator: 19 [new_demod,18] f(t,t)=tt.
% 1.63/2.20  ** KEPT (pick-wt=5): 21 [copy,20,flip.1] f(s,t)=st.
% 1.63/2.20  ---> New Demodulator: 22 [new_demod,21] f(s,t)=st.
% 1.63/2.20  ** KEPT (pick-wt=5): 24 [copy,23,flip.1] f(t,s)=ts.
% 1.63/2.20  ---> New Demodulator: 25 [new_demod,24] f(t,s)=ts.
% 1.63/2.20  ** KEPT (pick-wt=4): 27 [copy,26,flip.1] critical_point(t)=k.
% 1.63/2.20  ---> New Demodulator: 28 [new_demod,27] critical_point(t)=k.
% 1.63/2.20  ** KEPT (pick-wt=5): 30 [copy,29,flip.1] f(s,k)=sk.
% 1.63/2.20  ---> New Demodulator: 31 [new_demod,30] f(s,k)=sk.
% 1.63/2.20  ** KEPT (pick-wt=5): 33 [copy,32,flip.1] f(t,k)=tk.
% 1.63/2.20  ---> New Demodulator: 34 [new_demod,33] f(t,k)=tk.
% 1.63/2.20  ** KEPT (pick-wt=5): 36 [copy,35,flip.1] f(st,k)=stk.
% 1.63/2.20  ---> New Demodulator: 37 [new_demod,36] f(st,k)=stk.
% 1.63/2.20  ** KEPT (pick-wt=5): 39 [copy,38,flip.1] f(ts,k)=tsk.
% 1.63/2.20  ---> New Demodulator: 40 [new_demod,39] f(ts,k)=tsk.
% 1.63/2.20  ** KEPT (pick-wt=5): 42 [copy,41,flip.1] f(t,skolem)=tsk.
% 1.63/2.20  ---> New Demodulator: 43 [new_demod,42] f(t,skolem)=tsk.
% 1.63/2.20    Following clause subsumed by 5 during input processing: 0 [copy,5,flip.1] A=A.
% 1.63/2.20  >>>> Starting back demodulation with 8.
% 1.63/2.20  >>>> Starting back demodulation with 11.
% 1.63/2.20  >>>> Starting back demodulation with 13.
% 1.63/2.20  >>>> Starting back demodulation with 19.
% 1.63/2.20  >>>> Starting back demodulation with 22.
% 1.63/2.20  >>>> Starting back demodulation with 25.
% 6.10/6.28  >>>> Starting back demodulation with 28.
% 6.10/6.28  >>>> Starting back demodulation with 31.
% 6.10/6.28  >>>> Starting back demodulation with 34.
% 6.10/6.28  >>>> Starting back demodulation with 37.
% 6.10/6.28  >>>> Starting back demodulation with 40.
% 6.10/6.28  >>>> Starting back demodulation with 43.
% 6.10/6.28  
% 6.10/6.28  ======= end of input processing =======
% 6.10/6.28  
% 6.10/6.28  =========== start of search ===========
% 6.10/6.28  
% 6.10/6.28  
% 6.10/6.28  Resetting weight limit to 11.
% 6.10/6.28  
% 6.10/6.28  
% 6.10/6.28  Resetting weight limit to 11.
% 6.10/6.28  
% 6.10/6.28  sos_size=861
% 6.10/6.28  
% 6.10/6.28  Search stopped because sos empty.
% 6.10/6.28  
% 6.10/6.28  
% 6.10/6.28  Search stopped because sos empty.
% 6.10/6.28  
% 6.10/6.28  ============ end of search ============
% 6.10/6.28  
% 6.10/6.28  -------------- statistics -------------
% 6.10/6.28  clauses given               1575
% 6.10/6.28  clauses generated         436296
% 6.10/6.28  clauses kept                1963
% 6.10/6.28  clauses forward subsumed   24881
% 6.10/6.28  clauses back subsumed        444
% 6.10/6.28  Kbytes malloced             7812
% 6.10/6.28  
% 6.10/6.28  ----------- times (seconds) -----------
% 6.10/6.28  user CPU time          4.07          (0 hr, 0 min, 4 sec)
% 6.10/6.28  system CPU time        0.00          (0 hr, 0 min, 0 sec)
% 6.10/6.28  wall-clock time        6             (0 hr, 0 min, 6 sec)
% 6.10/6.28  
% 6.10/6.28  Process 16180 finished Wed Jul 27 02:14:47 2022
% 6.10/6.28  Otter interrupted
% 6.10/6.28  PROOF NOT FOUND
%------------------------------------------------------------------------------