TSTP Solution File: LCL420-1 by Otter---3.3

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Otter---3.3
% Problem  : LCL420-1 : TPTP v8.1.0. Released v2.5.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : otter-tptp-script %s

% Computer : n017.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 13:04:23 EDT 2022

% Result   : Unknown 5.08s 5.29s
% Output   : None 
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----No solution output by system
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.04/0.12  % Problem  : LCL420-1 : TPTP v8.1.0. Released v2.5.0.
% 0.12/0.13  % Command  : otter-tptp-script %s
% 0.14/0.34  % Computer : n017.cluster.edu
% 0.14/0.34  % Model    : x86_64 x86_64
% 0.14/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/0.34  % Memory   : 8042.1875MB
% 0.14/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.14/0.34  % CPULimit : 300
% 0.14/0.34  % WCLimit  : 300
% 0.14/0.34  % DateTime : Wed Jul 27 08:53:18 EDT 2022
% 0.14/0.34  % CPUTime  : 
% 5.08/5.29  ----- Otter 3.3f, August 2004 -----
% 5.08/5.29  The process was started by sandbox2 on n017.cluster.edu,
% 5.08/5.29  Wed Jul 27 08:53:18 2022
% 5.08/5.29  The command was "./otter".  The process ID is 32132.
% 5.08/5.29  
% 5.08/5.29  set(prolog_style_variables).
% 5.08/5.29  set(auto).
% 5.08/5.29     dependent: set(auto1).
% 5.08/5.29     dependent: set(process_input).
% 5.08/5.29     dependent: clear(print_kept).
% 5.08/5.29     dependent: clear(print_new_demod).
% 5.08/5.29     dependent: clear(print_back_demod).
% 5.08/5.29     dependent: clear(print_back_sub).
% 5.08/5.29     dependent: set(control_memory).
% 5.08/5.29     dependent: assign(max_mem, 12000).
% 5.08/5.29     dependent: assign(pick_given_ratio, 4).
% 5.08/5.29     dependent: assign(stats_level, 1).
% 5.08/5.29     dependent: assign(max_seconds, 10800).
% 5.08/5.29  clear(print_given).
% 5.08/5.29  
% 5.08/5.29  list(usable).
% 5.08/5.29  0 [] -is_a_theorem(implies(A,B))| -is_a_theorem(A)|is_a_theorem(B).
% 5.08/5.29  0 [] is_a_theorem(implies(A,implies(B,A))).
% 5.08/5.29  0 [] is_a_theorem(implies(implies(A,B),implies(implies(B,C),implies(A,C)))).
% 5.08/5.29  0 [] is_a_theorem(implies(implies(implies(A,B),B),implies(implies(B,A),A))).
% 5.08/5.29  0 [] is_a_theorem(implies(implies(not(A),not(B)),implies(B,A))).
% 5.08/5.29  0 [] -is_a_theorem(implies(not(implies(implies(not(implies(implies(a,b),b)),not(implies(implies(a,c),c))),not(implies(implies(a,c),c)))),implies(implies(a,not(implies(implies(not(b),not(c)),not(c)))),not(implies(implies(not(b),not(c)),not(c)))))).
% 5.08/5.29  end_of_list.
% 5.08/5.29  
% 5.08/5.29  SCAN INPUT: prop=0, horn=1, equality=0, symmetry=0, max_lits=3.
% 5.08/5.29  
% 5.08/5.29  This is a Horn set without equality.  The strategy will
% 5.08/5.29  be hyperresolution, with satellites in sos and nuclei
% 5.08/5.29  in usable.
% 5.08/5.29  
% 5.08/5.29     dependent: set(hyper_res).
% 5.08/5.29     dependent: clear(order_hyper).
% 5.08/5.29  
% 5.08/5.29  ------------> process usable:
% 5.08/5.29  ** KEPT (pick-wt=8): 1 [] -is_a_theorem(implies(A,B))| -is_a_theorem(A)|is_a_theorem(B).
% 5.08/5.29  ** KEPT (pick-wt=44): 2 [] -is_a_theorem(implies(not(implies(implies(not(implies(implies(a,b),b)),not(implies(implies(a,c),c))),not(implies(implies(a,c),c)))),implies(implies(a,not(implies(implies(not(b),not(c)),not(c)))),not(implies(implies(not(b),not(c)),not(c)))))).
% 5.08/5.29  
% 5.08/5.29  ------------> process sos:
% 5.08/5.29  ** KEPT (pick-wt=6): 3 [] is_a_theorem(implies(A,implies(B,A))).
% 5.08/5.29  ** KEPT (pick-wt=12): 4 [] is_a_theorem(implies(implies(A,B),implies(implies(B,C),implies(A,C)))).
% 5.08/5.29  ** KEPT (pick-wt=12): 5 [] is_a_theorem(implies(implies(implies(A,B),B),implies(implies(B,A),A))).
% 5.08/5.29  ** KEPT (pick-wt=10): 6 [] is_a_theorem(implies(implies(not(A),not(B)),implies(B,A))).
% 5.08/5.29  
% 5.08/5.29  ======= end of input processing =======
% 5.08/5.29  
% 5.08/5.29  =========== start of search ===========
% 5.08/5.29  
% 5.08/5.29  
% 5.08/5.29  Resetting weight limit to 11.
% 5.08/5.29  
% 5.08/5.29  
% 5.08/5.29  Resetting weight limit to 11.
% 5.08/5.29  
% 5.08/5.29  sos_size=1899
% 5.08/5.29  
% 5.08/5.29  Search stopped because sos empty.
% 5.08/5.29  
% 5.08/5.29  
% 5.08/5.29  Search stopped because sos empty.
% 5.08/5.29  
% 5.08/5.29  ============ end of search ============
% 5.08/5.29  
% 5.08/5.29  -------------- statistics -------------
% 5.08/5.29  clauses given               2113
% 5.08/5.29  clauses generated        2074579
% 5.08/5.29  clauses kept                2123
% 5.08/5.29  clauses forward subsumed  512099
% 5.08/5.29  clauses back subsumed         12
% 5.08/5.29  Kbytes malloced             6835
% 5.08/5.29  
% 5.08/5.29  ----------- times (seconds) -----------
% 5.08/5.29  user CPU time          3.38          (0 hr, 0 min, 3 sec)
% 5.08/5.29  system CPU time        0.01          (0 hr, 0 min, 0 sec)
% 5.08/5.29  wall-clock time        5             (0 hr, 0 min, 5 sec)
% 5.08/5.29  
% 5.08/5.29  Process 32132 finished Wed Jul 27 08:53:23 2022
% 5.08/5.29  Otter interrupted
% 5.08/5.29  PROOF NOT FOUND
%------------------------------------------------------------------------------