TSTP Solution File: KRS066+1 by Otter---3.3

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Otter---3.3
% Problem  : KRS066+1 : TPTP v8.1.0. Released v3.1.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : otter-tptp-script %s

% Computer : n004.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 13:01:03 EDT 2022

% Result   : Unsatisfiable 1.68s 1.89s
% Output   : Refutation 1.68s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    2
%            Number of leaves      :    3
% Syntax   : Number of clauses     :    5 (   4 unt;   0 nHn;   4 RR)
%            Number of literals    :    6 (   0 equ;   3 neg)
%            Maximal clause size   :    2 (   1 avg)
%            Maximal term depth    :    1 (   1 avg)
%            Number of predicates  :    3 (   2 usr;   1 prp; 0-1 aty)
%            Number of functors    :    0 (   0 usr;   0 con; --- aty)
%            Number of variables   :    4 (   3 sgn)

% Comments : 
%------------------------------------------------------------------------------
cnf(1,axiom,
    ~ cowlNothing(A),
    file('KRS066+1.p',unknown),
    [] ).

cnf(3,axiom,
    ( ~ cowlThing(A)
    | cowlNothing(A) ),
    file('KRS066+1.p',unknown),
    [] ).

cnf(4,plain,
    ~ cowlThing(A),
    inference(unit_del,[status(thm)],[inference(copy,[status(thm)],[3]),1]),
    [iquote('copy,3,unit_del,1')] ).

cnf(5,axiom,
    cowlThing(A),
    file('KRS066+1.p',unknown),
    [] ).

cnf(6,plain,
    $false,
    inference(binary,[status(thm)],[5,4]),
    [iquote('binary,5.1,4.1')] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.12  % Problem  : KRS066+1 : TPTP v8.1.0. Released v3.1.0.
% 0.07/0.13  % Command  : otter-tptp-script %s
% 0.13/0.33  % Computer : n004.cluster.edu
% 0.13/0.33  % Model    : x86_64 x86_64
% 0.13/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.33  % Memory   : 8042.1875MB
% 0.13/0.33  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.33  % CPULimit : 300
% 0.13/0.33  % WCLimit  : 300
% 0.13/0.33  % DateTime : Wed Jul 27 03:28:21 EDT 2022
% 0.13/0.33  % CPUTime  : 
% 1.68/1.89  
% 1.68/1.89  -------- PROOF -------- 
% 1.68/1.89  ----- Otter 3.3f, August 2004 -----
% 1.68/1.89  The process was started by sandbox on n004.cluster.edu,
% 1.68/1.89  Wed Jul 27 03:28:21 2022
% 1.68/1.89  The command was "./otter".  The process ID is 8770.
% 1.68/1.89  
% 1.68/1.89  set(prolog_style_variables).
% 1.68/1.89  set(auto).
% 1.68/1.89     dependent: set(auto1).
% 1.68/1.89     dependent: set(process_input).
% 1.68/1.89     dependent: clear(print_kept).
% 1.68/1.89     dependent: clear(print_new_demod).
% 1.68/1.89     dependent: clear(print_back_demod).
% 1.68/1.89     dependent: clear(print_back_sub).
% 1.68/1.89     dependent: set(control_memory).
% 1.68/1.89     dependent: assign(max_mem, 12000).
% 1.68/1.89     dependent: assign(pick_given_ratio, 4).
% 1.68/1.89     dependent: assign(stats_level, 1).
% 1.68/1.89     dependent: assign(max_seconds, 10800).
% 1.68/1.89  clear(print_given).
% 1.68/1.89  
% 1.68/1.89  formula_list(usable).
% 1.68/1.89  all X (cowlThing(X)& -cowlNothing(X)).
% 1.68/1.89  all X (xsd_string(X)<-> -xsd_integer(X)).
% 1.68/1.89  all X (cowlThing(X)<->cowlNothing(X)).
% 1.68/1.89  end_of_list.
% 1.68/1.89  
% 1.68/1.89  -------> usable clausifies to:
% 1.68/1.89  
% 1.68/1.89  list(usable).
% 1.68/1.89  0 [] cowlThing(X).
% 1.68/1.89  0 [] -cowlNothing(X).
% 1.68/1.89  0 [] -xsd_string(X)| -xsd_integer(X).
% 1.68/1.89  0 [] xsd_string(X)|xsd_integer(X).
% 1.68/1.89  0 [] -cowlThing(X)|cowlNothing(X).
% 1.68/1.89  0 [] cowlThing(X)| -cowlNothing(X).
% 1.68/1.89  end_of_list.
% 1.68/1.89  
% 1.68/1.89  SCAN INPUT: prop=0, horn=0, equality=0, symmetry=0, max_lits=2.
% 1.68/1.89  
% 1.68/1.89  This is a non-Horn set without equality.  The strategy will
% 1.68/1.89  be ordered hyper_res, unit deletion, and factoring, with
% 1.68/1.89  satellites in sos and with nuclei in usable.
% 1.68/1.89  
% 1.68/1.89     dependent: set(hyper_res).
% 1.68/1.89     dependent: set(factor).
% 1.68/1.89     dependent: set(unit_deletion).
% 1.68/1.89  
% 1.68/1.89  ------------> process usable:
% 1.68/1.89  ** KEPT (pick-wt=2): 1 [] -cowlNothing(A).
% 1.68/1.89  ** KEPT (pick-wt=4): 2 [] -xsd_string(A)| -xsd_integer(A).
% 1.68/1.89  ** KEPT (pick-wt=2): 4 [copy,3,unit_del,1] -cowlThing(A).
% 1.68/1.89    Following clause subsumed by 1 during input processing: 0 [unit_del,4] -cowlNothing(A).
% 1.68/1.89  
% 1.68/1.89  ------------> process sos:
% 1.68/1.89  ** KEPT (pick-wt=2): 5 [] cowlThing(A).
% 1.68/1.89  
% 1.68/1.89  ----> UNIT CONFLICT at   0.00 sec ----> 6 [binary,5.1,4.1] $F.
% 1.68/1.89  
% 1.68/1.89  Length of proof is 1.  Level of proof is 1.
% 1.68/1.89  
% 1.68/1.89  ---------------- PROOF ----------------
% 1.68/1.89  % SZS status Theorem
% 1.68/1.89  % SZS output start Refutation
% See solution above
% 1.68/1.89  ------------ end of proof -------------
% 1.68/1.89  
% 1.68/1.89  
% 1.68/1.89  Search stopped by max_proofs option.
% 1.68/1.89  
% 1.68/1.89  
% 1.68/1.89  Search stopped by max_proofs option.
% 1.68/1.89  
% 1.68/1.89  ============ end of search ============
% 1.68/1.89  
% 1.68/1.89  -------------- statistics -------------
% 1.68/1.89  clauses given                  0
% 1.68/1.89  clauses generated              0
% 1.68/1.89  clauses kept                   4
% 1.68/1.89  clauses forward subsumed       1
% 1.68/1.89  clauses back subsumed          0
% 1.68/1.89  Kbytes malloced              976
% 1.68/1.89  
% 1.68/1.89  ----------- times (seconds) -----------
% 1.68/1.89  user CPU time          0.00          (0 hr, 0 min, 0 sec)
% 1.68/1.89  system CPU time        0.00          (0 hr, 0 min, 0 sec)
% 1.68/1.89  wall-clock time        1             (0 hr, 0 min, 1 sec)
% 1.68/1.89  
% 1.68/1.89  That finishes the proof of the theorem.
% 1.68/1.89  
% 1.68/1.89  Process 8770 finished Wed Jul 27 03:28:22 2022
% 1.68/1.89  Otter interrupted
% 1.68/1.89  PROOF FOUND
%------------------------------------------------------------------------------