TSTP Solution File: SEU121+1 by Otter---3.3

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Otter---3.3
% Problem  : SEU121+1 : TPTP v8.1.0. Released v3.3.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : otter-tptp-script %s

% Computer : n005.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 13:14:48 EDT 2022

% Result   : Theorem 1.67s 1.88s
% Output   : Refutation 1.67s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    5
%            Number of leaves      :    6
% Syntax   : Number of clauses     :   11 (   8 unt;   1 nHn;  10 RR)
%            Number of literals    :   15 (   0 equ;   4 neg)
%            Maximal clause size   :    3 (   1 avg)
%            Maximal term depth    :    2 (   1 avg)
%            Number of predicates  :    3 (   2 usr;   1 prp; 0-2 aty)
%            Number of functors    :    4 (   4 usr;   3 con; 0-2 aty)
%            Number of variables   :    7 (   0 sgn)

% Comments : 
%------------------------------------------------------------------------------
cnf(2,axiom,
    ( ~ subset(A,B)
    | ~ in(C,A)
    | in(C,B) ),
    file('SEU121+1.p',unknown),
    [] ).

cnf(3,axiom,
    ( subset(A,B)
    | ~ in(dollar_f1(A,B),B) ),
    file('SEU121+1.p',unknown),
    [] ).

cnf(5,axiom,
    ~ subset(dollar_c5,dollar_c3),
    file('SEU121+1.p',unknown),
    [] ).

cnf(12,axiom,
    ( subset(A,B)
    | in(dollar_f1(A,B),A) ),
    file('SEU121+1.p',unknown),
    [] ).

cnf(16,axiom,
    subset(dollar_c5,dollar_c4),
    file('SEU121+1.p',unknown),
    [] ).

cnf(17,axiom,
    subset(dollar_c4,dollar_c3),
    file('SEU121+1.p',unknown),
    [] ).

cnf(23,plain,
    in(dollar_f1(dollar_c5,dollar_c3),dollar_c5),
    inference(hyper,[status(thm)],[12,5]),
    [iquote('hyper,12,5')] ).

cnf(35,plain,
    in(dollar_f1(dollar_c5,dollar_c3),dollar_c4),
    inference(hyper,[status(thm)],[23,2,16]),
    [iquote('hyper,23,2,16')] ).

cnf(60,plain,
    in(dollar_f1(dollar_c5,dollar_c3),dollar_c3),
    inference(hyper,[status(thm)],[35,2,17]),
    [iquote('hyper,35,2,17')] ).

cnf(70,plain,
    subset(dollar_c5,dollar_c3),
    inference(hyper,[status(thm)],[60,3]),
    [iquote('hyper,60,3')] ).

cnf(71,plain,
    $false,
    inference(binary,[status(thm)],[70,5]),
    [iquote('binary,70.1,5.1')] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.11  % Problem  : SEU121+1 : TPTP v8.1.0. Released v3.3.0.
% 0.03/0.12  % Command  : otter-tptp-script %s
% 0.12/0.33  % Computer : n005.cluster.edu
% 0.12/0.33  % Model    : x86_64 x86_64
% 0.12/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.33  % Memory   : 8042.1875MB
% 0.12/0.33  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.33  % CPULimit : 300
% 0.12/0.33  % WCLimit  : 300
% 0.12/0.33  % DateTime : Wed Jul 27 07:59:50 EDT 2022
% 0.12/0.33  % CPUTime  : 
% 1.67/1.88  ----- Otter 3.3f, August 2004 -----
% 1.67/1.88  The process was started by sandbox on n005.cluster.edu,
% 1.67/1.88  Wed Jul 27 07:59:50 2022
% 1.67/1.88  The command was "./otter".  The process ID is 20862.
% 1.67/1.88  
% 1.67/1.88  set(prolog_style_variables).
% 1.67/1.88  set(auto).
% 1.67/1.88     dependent: set(auto1).
% 1.67/1.88     dependent: set(process_input).
% 1.67/1.88     dependent: clear(print_kept).
% 1.67/1.88     dependent: clear(print_new_demod).
% 1.67/1.88     dependent: clear(print_back_demod).
% 1.67/1.88     dependent: clear(print_back_sub).
% 1.67/1.88     dependent: set(control_memory).
% 1.67/1.88     dependent: assign(max_mem, 12000).
% 1.67/1.88     dependent: assign(pick_given_ratio, 4).
% 1.67/1.88     dependent: assign(stats_level, 1).
% 1.67/1.88     dependent: assign(max_seconds, 10800).
% 1.67/1.88  clear(print_given).
% 1.67/1.88  
% 1.67/1.88  formula_list(usable).
% 1.67/1.88  all A (A=A).
% 1.67/1.88  all A B (in(A,B)-> -in(B,A)).
% 1.67/1.88  all A B (subset(A,B)<-> (all C (in(C,A)->in(C,B)))).
% 1.67/1.88  $T.
% 1.67/1.88  empty(empty_set).
% 1.67/1.88  exists A empty(A).
% 1.67/1.88  exists A (-empty(A)).
% 1.67/1.88  all A B subset(A,A).
% 1.67/1.88  -(all A B C (subset(A,B)&subset(B,C)->subset(A,C))).
% 1.67/1.88  all A (empty(A)->A=empty_set).
% 1.67/1.88  all A B (-(in(A,B)&empty(B))).
% 1.67/1.88  all A B (-(empty(A)&A!=B&empty(B))).
% 1.67/1.88  end_of_list.
% 1.67/1.88  
% 1.67/1.88  -------> usable clausifies to:
% 1.67/1.88  
% 1.67/1.88  list(usable).
% 1.67/1.88  0 [] A=A.
% 1.67/1.88  0 [] -in(A,B)| -in(B,A).
% 1.67/1.88  0 [] -subset(A,B)| -in(C,A)|in(C,B).
% 1.67/1.88  0 [] subset(A,B)|in($f1(A,B),A).
% 1.67/1.88  0 [] subset(A,B)| -in($f1(A,B),B).
% 1.67/1.88  0 [] $T.
% 1.67/1.88  0 [] empty(empty_set).
% 1.67/1.88  0 [] empty($c1).
% 1.67/1.88  0 [] -empty($c2).
% 1.67/1.88  0 [] subset(A,A).
% 1.67/1.88  0 [] subset($c5,$c4).
% 1.67/1.88  0 [] subset($c4,$c3).
% 1.67/1.88  0 [] -subset($c5,$c3).
% 1.67/1.88  0 [] -empty(A)|A=empty_set.
% 1.67/1.88  0 [] -in(A,B)| -empty(B).
% 1.67/1.88  0 [] -empty(A)|A=B| -empty(B).
% 1.67/1.88  end_of_list.
% 1.67/1.88  
% 1.67/1.88  SCAN INPUT: prop=0, horn=0, equality=1, symmetry=0, max_lits=3.
% 1.67/1.88  
% 1.67/1.88  This ia a non-Horn set with equality.  The strategy will be
% 1.67/1.88  Knuth-Bendix, ordered hyper_res, factoring, and unit
% 1.67/1.88  deletion, with positive clauses in sos and nonpositive
% 1.67/1.88  clauses in usable.
% 1.67/1.88  
% 1.67/1.88     dependent: set(knuth_bendix).
% 1.67/1.88     dependent: set(anl_eq).
% 1.67/1.88     dependent: set(para_from).
% 1.67/1.88     dependent: set(para_into).
% 1.67/1.88     dependent: clear(para_from_right).
% 1.67/1.88     dependent: clear(para_into_right).
% 1.67/1.88     dependent: set(para_from_vars).
% 1.67/1.88     dependent: set(eq_units_both_ways).
% 1.67/1.88     dependent: set(dynamic_demod_all).
% 1.67/1.88     dependent: set(dynamic_demod).
% 1.67/1.88     dependent: set(order_eq).
% 1.67/1.88     dependent: set(back_demod).
% 1.67/1.88     dependent: set(lrpo).
% 1.67/1.88     dependent: set(hyper_res).
% 1.67/1.88     dependent: set(unit_deletion).
% 1.67/1.88     dependent: set(factor).
% 1.67/1.88  
% 1.67/1.88  ------------> process usable:
% 1.67/1.88  ** KEPT (pick-wt=6): 1 [] -in(A,B)| -in(B,A).
% 1.67/1.88  ** KEPT (pick-wt=9): 2 [] -subset(A,B)| -in(C,A)|in(C,B).
% 1.67/1.88  ** KEPT (pick-wt=8): 3 [] subset(A,B)| -in($f1(A,B),B).
% 1.67/1.88  ** KEPT (pick-wt=2): 4 [] -empty($c2).
% 1.67/1.88  ** KEPT (pick-wt=3): 5 [] -subset($c5,$c3).
% 1.67/1.88  ** KEPT (pick-wt=5): 6 [] -empty(A)|A=empty_set.
% 1.67/1.88  ** KEPT (pick-wt=5): 7 [] -in(A,B)| -empty(B).
% 1.67/1.88  ** KEPT (pick-wt=7): 8 [] -empty(A)|A=B| -empty(B).
% 1.67/1.88  
% 1.67/1.88  ------------> process sos:
% 1.67/1.88  ** KEPT (pick-wt=3): 11 [] A=A.
% 1.67/1.88  ** KEPT (pick-wt=8): 12 [] subset(A,B)|in($f1(A,B),A).
% 1.67/1.88  ** KEPT (pick-wt=2): 13 [] empty(empty_set).
% 1.67/1.88  ** KEPT (pick-wt=2): 14 [] empty($c1).
% 1.67/1.88  ** KEPT (pick-wt=3): 15 [] subset(A,A).
% 1.67/1.88  ** KEPT (pick-wt=3): 16 [] subset($c5,$c4).
% 1.67/1.88  ** KEPT (pick-wt=3): 17 [] subset($c4,$c3).
% 1.67/1.88    Following clause subsumed by 11 during input processing: 0 [copy,11,flip.1] A=A.
% 1.67/1.88  11 back subsumes 10.
% 1.67/1.88  
% 1.67/1.88  ======= end of input processing =======
% 1.67/1.88  
% 1.67/1.88  =========== start of search ===========
% 1.67/1.88  
% 1.67/1.88  -------- PROOF -------- 
% 1.67/1.88  
% 1.67/1.88  ----> UNIT CONFLICT at   0.00 sec ----> 71 [binary,70.1,5.1] $F.
% 1.67/1.88  
% 1.67/1.88  Length of proof is 4.  Level of proof is 4.
% 1.67/1.88  
% 1.67/1.88  ---------------- PROOF ----------------
% 1.67/1.88  % SZS status Theorem
% 1.67/1.88  % SZS output start Refutation
% See solution above
% 1.67/1.88  ------------ end of proof -------------
% 1.67/1.88  
% 1.67/1.88  
% 1.67/1.88  Search stopped by max_proofs option.
% 1.67/1.88  
% 1.67/1.88  
% 1.67/1.88  Search stopped by max_proofs option.
% 1.67/1.88  
% 1.67/1.88  ============ end of search ============
% 1.67/1.88  
% 1.67/1.88  -------------- statistics -------------
% 1.67/1.88  clauses given                 22
% 1.67/1.88  clauses generated            139
% 1.67/1.88  clauses kept                  69
% 1.67/1.88  clauses forward subsumed      86
% 1.67/1.88  clauses back subsumed          1
% 1.67/1.88  Kbytes malloced              976
% 1.67/1.88  
% 1.67/1.88  ----------- times (seconds) -----------
% 1.67/1.88  user CPU time          0.00          (0 hr, 0 min, 0 sec)
% 1.67/1.88  system CPU time        0.00          (0 hr, 0 min, 0 sec)
% 1.67/1.88  wall-clock time        2             (0 hr, 0 min, 2 sec)
% 1.67/1.88  
% 1.67/1.88  That finishes the proof of the theorem.
% 1.67/1.88  
% 1.67/1.88  Process 20862 finished Wed Jul 27 07:59:52 2022
% 1.67/1.88  Otter interrupted
% 1.67/1.88  PROOF FOUND
%------------------------------------------------------------------------------