TSTP Solution File: LCL170-1 by Otter---3.3

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Otter---3.3
% Problem  : LCL170-1 : TPTP v8.1.0. Released v1.1.0.
% 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 13:03:45 EDT 2022

% Result   : Unsatisfiable 1.74s 1.92s
% Output   : Refutation 1.74s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    2
%            Number of leaves      :    3
% Syntax   : Number of clauses     :    5 (   4 unt;   0 nHn;   3 RR)
%            Number of literals    :    6 (   0 equ;   2 neg)
%            Maximal clause size   :    2 (   1 avg)
%            Maximal term depth    :    4 (   2 avg)
%            Number of predicates  :    3 (   2 usr;   1 prp; 0-1 aty)
%            Number of functors    :    4 (   4 usr;   2 con; 0-2 aty)
%            Number of variables   :    5 (   2 sgn)

% Comments : 
%------------------------------------------------------------------------------
cnf(1,axiom,
    ( theorem(A)
    | ~ axiom(A) ),
    file('LCL170-1.p',unknown),
    [] ).

cnf(4,axiom,
    ~ theorem(or(not(q),or(not(p),q))),
    file('LCL170-1.p',unknown),
    [] ).

cnf(6,axiom,
    axiom(or(not(A),or(B,A))),
    file('LCL170-1.p',unknown),
    [] ).

cnf(11,plain,
    theorem(or(not(A),or(B,A))),
    inference(hyper,[status(thm)],[6,1]),
    [iquote('hyper,6,1')] ).

cnf(12,plain,
    $false,
    inference(binary,[status(thm)],[11,4]),
    [iquote('binary,11.1,4.1')] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.11/0.12  % Problem  : LCL170-1 : TPTP v8.1.0. Released v1.1.0.
% 0.11/0.13  % 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 09:16:08 EDT 2022
% 0.13/0.34  % CPUTime  : 
% 1.74/1.92  ----- Otter 3.3f, August 2004 -----
% 1.74/1.92  The process was started by sandbox on n021.cluster.edu,
% 1.74/1.92  Wed Jul 27 09:16:08 2022
% 1.74/1.92  The command was "./otter".  The process ID is 22733.
% 1.74/1.92  
% 1.74/1.92  set(prolog_style_variables).
% 1.74/1.92  set(auto).
% 1.74/1.92     dependent: set(auto1).
% 1.74/1.92     dependent: set(process_input).
% 1.74/1.92     dependent: clear(print_kept).
% 1.74/1.92     dependent: clear(print_new_demod).
% 1.74/1.92     dependent: clear(print_back_demod).
% 1.74/1.92     dependent: clear(print_back_sub).
% 1.74/1.92     dependent: set(control_memory).
% 1.74/1.92     dependent: assign(max_mem, 12000).
% 1.74/1.92     dependent: assign(pick_given_ratio, 4).
% 1.74/1.92     dependent: assign(stats_level, 1).
% 1.74/1.92     dependent: assign(max_seconds, 10800).
% 1.74/1.92  clear(print_given).
% 1.74/1.92  
% 1.74/1.92  list(usable).
% 1.74/1.92  0 [] axiom(or(not(or(A,A)),A)).
% 1.74/1.92  0 [] axiom(or(not(A),or(B,A))).
% 1.74/1.92  0 [] axiom(or(not(or(A,B)),or(B,A))).
% 1.74/1.92  0 [] axiom(or(not(or(A,or(B,C))),or(B,or(A,C)))).
% 1.74/1.92  0 [] axiom(or(not(or(not(A),B)),or(not(or(C,A)),or(C,B)))).
% 1.74/1.92  0 [] theorem(X)| -axiom(X).
% 1.74/1.92  0 [] theorem(X)| -axiom(or(not(Y),X))| -theorem(Y).
% 1.74/1.92  0 [] theorem(or(not(X),Z))| -axiom(or(not(X),Y))| -theorem(or(not(Y),Z)).
% 1.74/1.92  0 [] -theorem(or(not(q),or(not(p),q))).
% 1.74/1.92  end_of_list.
% 1.74/1.92  
% 1.74/1.92  SCAN INPUT: prop=0, horn=1, equality=0, symmetry=0, max_lits=3.
% 1.74/1.92  
% 1.74/1.92  This is a Horn set without equality.  The strategy will
% 1.74/1.92  be hyperresolution, with satellites in sos and nuclei
% 1.74/1.92  in usable.
% 1.74/1.92  
% 1.74/1.92     dependent: set(hyper_res).
% 1.74/1.92     dependent: clear(order_hyper).
% 1.74/1.92  
% 1.74/1.92  ------------> process usable:
% 1.74/1.92  ** KEPT (pick-wt=4): 1 [] theorem(A)| -axiom(A).
% 1.74/1.92  ** KEPT (pick-wt=9): 2 [] theorem(A)| -axiom(or(not(B),A))| -theorem(B).
% 1.74/1.92  ** KEPT (pick-wt=15): 3 [] theorem(or(not(A),B))| -axiom(or(not(A),C))| -theorem(or(not(C),B)).
% 1.74/1.92  ** KEPT (pick-wt=8): 4 [] -theorem(or(not(q),or(not(p),q))).
% 1.74/1.92  
% 1.74/1.92  ------------> process sos:
% 1.74/1.92  ** KEPT (pick-wt=7): 5 [] axiom(or(not(or(A,A)),A)).
% 1.74/1.92  ** KEPT (pick-wt=7): 6 [] axiom(or(not(A),or(B,A))).
% 1.74/1.92  ** KEPT (pick-wt=9): 7 [] axiom(or(not(or(A,B)),or(B,A))).
% 1.74/1.92  ** KEPT (pick-wt=13): 8 [] axiom(or(not(or(A,or(B,C))),or(B,or(A,C)))).
% 1.74/1.92  ** KEPT (pick-wt=15): 9 [] axiom(or(not(or(not(A),B)),or(not(or(C,A)),or(C,B)))).
% 1.74/1.92  
% 1.74/1.92  ======= end of input processing =======
% 1.74/1.92  
% 1.74/1.92  =========== start of search ===========
% 1.74/1.92  
% 1.74/1.92  -------- PROOF -------- 
% 1.74/1.92  
% 1.74/1.92  ----> UNIT CONFLICT at   0.00 sec ----> 12 [binary,11.1,4.1] $F.
% 1.74/1.92  
% 1.74/1.92  Length of proof is 1.  Level of proof is 1.
% 1.74/1.92  
% 1.74/1.92  ---------------- PROOF ----------------
% 1.74/1.92  % SZS status Unsatisfiable
% 1.74/1.92  % SZS output start Refutation
% See solution above
% 1.74/1.92  ------------ end of proof -------------
% 1.74/1.92  
% 1.74/1.92  
% 1.74/1.92  Search stopped by max_proofs option.
% 1.74/1.92  
% 1.74/1.92  
% 1.74/1.92  Search stopped by max_proofs option.
% 1.74/1.92  
% 1.74/1.92  ============ end of search ============
% 1.74/1.92  
% 1.74/1.92  -------------- statistics -------------
% 1.74/1.92  clauses given                  2
% 1.74/1.92  clauses generated              2
% 1.74/1.92  clauses kept                  11
% 1.74/1.92  clauses forward subsumed       0
% 1.74/1.92  clauses back subsumed          0
% 1.74/1.92  Kbytes malloced              976
% 1.74/1.92  
% 1.74/1.92  ----------- times (seconds) -----------
% 1.74/1.92  user CPU time          0.00          (0 hr, 0 min, 0 sec)
% 1.74/1.92  system CPU time        0.00          (0 hr, 0 min, 0 sec)
% 1.74/1.92  wall-clock time        1             (0 hr, 0 min, 1 sec)
% 1.74/1.92  
% 1.74/1.92  That finishes the proof of the theorem.
% 1.74/1.92  
% 1.74/1.92  Process 22733 finished Wed Jul 27 09:16:09 2022
% 1.74/1.92  Otter interrupted
% 1.74/1.92  PROOF FOUND
%------------------------------------------------------------------------------