TSTP Solution File: SWV003-1 by Otter---3.3

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Otter---3.3
% Problem  : SWV003-1 : TPTP v8.1.0. Released v1.0.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : otter-tptp-script %s

% Computer : n019.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 13:19:39 EDT 2022

% Result   : Unsatisfiable 1.73s 1.94s
% Output   : Refutation 1.73s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    2
%            Number of leaves      :    4
% Syntax   : Number of clauses     :    6 (   5 unt;   0 nHn;   6 RR)
%            Number of literals    :    8 (   0 equ;   3 neg)
%            Maximal clause size   :    3 (   1 avg)
%            Maximal term depth    :    1 (   1 avg)
%            Number of predicates  :    2 (   1 usr;   1 prp; 0-2 aty)
%            Number of functors    :    3 (   3 usr;   3 con; 0-0 aty)
%            Number of variables   :    3 (   0 sgn)

% Comments : 
%------------------------------------------------------------------------------
cnf(3,axiom,
    ( less_than(A,B)
    | ~ less_than(A,C)
    | ~ less_than(C,B) ),
    file('SWV003-1.p',unknown),
    [] ).

cnf(9,axiom,
    ~ less_than(k,i),
    file('SWV003-1.p',unknown),
    [] ).

cnf(21,axiom,
    less_than(k,j),
    file('SWV003-1.p',unknown),
    [] ).

cnf(24,axiom,
    less_than(j,i),
    file('SWV003-1.p',unknown),
    [] ).

cnf(33,plain,
    less_than(k,i),
    inference(hyper,[status(thm)],[24,3,21]),
    [iquote('hyper,24,3,21')] ).

cnf(34,plain,
    $false,
    inference(binary,[status(thm)],[33,9]),
    [iquote('binary,33.1,9.1')] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.06/0.12  % Problem  : SWV003-1 : TPTP v8.1.0. Released v1.0.0.
% 0.06/0.13  % Command  : otter-tptp-script %s
% 0.12/0.34  % Computer : n019.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 06:09:07 EDT 2022
% 0.12/0.34  % CPUTime  : 
% 1.73/1.94  ----- Otter 3.3f, August 2004 -----
% 1.73/1.94  The process was started by sandbox2 on n019.cluster.edu,
% 1.73/1.94  Wed Jul 27 06:09:07 2022
% 1.73/1.94  The command was "./otter".  The process ID is 23654.
% 1.73/1.94  
% 1.73/1.94  set(prolog_style_variables).
% 1.73/1.94  set(auto).
% 1.73/1.94     dependent: set(auto1).
% 1.73/1.94     dependent: set(process_input).
% 1.73/1.94     dependent: clear(print_kept).
% 1.73/1.94     dependent: clear(print_new_demod).
% 1.73/1.94     dependent: clear(print_back_demod).
% 1.73/1.94     dependent: clear(print_back_sub).
% 1.73/1.94     dependent: set(control_memory).
% 1.73/1.94     dependent: assign(max_mem, 12000).
% 1.73/1.94     dependent: assign(pick_given_ratio, 4).
% 1.73/1.94     dependent: assign(stats_level, 1).
% 1.73/1.94     dependent: assign(max_seconds, 10800).
% 1.73/1.94  clear(print_given).
% 1.73/1.94  
% 1.73/1.94  list(usable).
% 1.73/1.94  0 [] A=A.
% 1.73/1.94  0 [] predecessor(successor(X))=X.
% 1.73/1.94  0 [] successor(predecessor(X))=X.
% 1.73/1.94  0 [] X=Y|predecessor(X)!=predecessor(Y).
% 1.73/1.94  0 [] X=Y|successor(X)!=successor(Y).
% 1.73/1.94  0 [] less_than(predecessor(X),X).
% 1.73/1.94  0 [] less_than(X,successor(X)).
% 1.73/1.94  0 [] less_than(X,Z)| -less_than(X,Y)| -less_than(Y,Z).
% 1.73/1.94  0 [] less_than(X,Y)|less_than(Y,X)|X=Y.
% 1.73/1.94  0 [] -less_than(X,X).
% 1.73/1.94  0 [] -less_than(X,Y)| -less_than(Y,X).
% 1.73/1.94  0 [] less_than(Y,Z)|X!=Y| -less_than(X,Z).
% 1.73/1.94  0 [] less_than(Z,Y)|X!=Y| -less_than(Z,X).
% 1.73/1.94  0 [] -less_than(n,j).
% 1.73/1.94  0 [] less_than(k,j).
% 1.73/1.94  0 [] -less_than(k,i).
% 1.73/1.94  0 [] less_than(i,n).
% 1.73/1.94  0 [] less_than(a(j),a(k)).
% 1.73/1.94  0 [] less_than(X,i)| -less_than(X,j)| -less_than(a(X),a(k)).
% 1.73/1.94  0 [] less_than(X,i)|less_than(n,X)| -less_than(one,i)| -less_than(a(X),a(predecessor(i))).
% 1.73/1.94  0 [] -less_than(one,X)| -less_than(X,i)| -less_than(a(X),a(predecessor(X))).
% 1.73/1.94  0 [] less_than(j,i).
% 1.73/1.94  end_of_list.
% 1.73/1.94  
% 1.73/1.94  SCAN INPUT: prop=0, horn=0, equality=1, symmetry=0, max_lits=4.
% 1.73/1.94  
% 1.73/1.94  This ia a non-Horn set with equality.  The strategy will be
% 1.73/1.94  Knuth-Bendix, ordered hyper_res, factoring, and unit
% 1.73/1.94  deletion, with positive clauses in sos and nonpositive
% 1.73/1.94  clauses in usable.
% 1.73/1.94  
% 1.73/1.94     dependent: set(knuth_bendix).
% 1.73/1.94     dependent: set(anl_eq).
% 1.73/1.94     dependent: set(para_from).
% 1.73/1.94     dependent: set(para_into).
% 1.73/1.94     dependent: clear(para_from_right).
% 1.73/1.94     dependent: clear(para_into_right).
% 1.73/1.94     dependent: set(para_from_vars).
% 1.73/1.94     dependent: set(eq_units_both_ways).
% 1.73/1.94     dependent: set(dynamic_demod_all).
% 1.73/1.94     dependent: set(dynamic_demod).
% 1.73/1.94     dependent: set(order_eq).
% 1.73/1.94     dependent: set(back_demod).
% 1.73/1.94     dependent: set(lrpo).
% 1.73/1.94     dependent: set(hyper_res).
% 1.73/1.94     dependent: set(unit_deletion).
% 1.73/1.94     dependent: set(factor).
% 1.73/1.94  
% 1.73/1.94  ------------> process usable:
% 1.73/1.94  ** KEPT (pick-wt=8): 1 [] A=B|predecessor(A)!=predecessor(B).
% 1.73/1.94  ** KEPT (pick-wt=8): 2 [] A=B|successor(A)!=successor(B).
% 1.73/1.94  ** KEPT (pick-wt=9): 3 [] less_than(A,B)| -less_than(A,C)| -less_than(C,B).
% 1.73/1.94  ** KEPT (pick-wt=3): 4 [] -less_than(A,A).
% 1.73/1.94  ** KEPT (pick-wt=6): 5 [] -less_than(A,B)| -less_than(B,A).
% 1.73/1.94  ** KEPT (pick-wt=9): 6 [] less_than(A,B)|C!=A| -less_than(C,B).
% 1.73/1.94  ** KEPT (pick-wt=9): 7 [] less_than(A,B)|C!=B| -less_than(A,C).
% 1.73/1.94  ** KEPT (pick-wt=3): 8 [] -less_than(n,j).
% 1.73/1.94  ** KEPT (pick-wt=3): 9 [] -less_than(k,i).
% 1.73/1.94  ** KEPT (pick-wt=11): 10 [] less_than(A,i)| -less_than(A,j)| -less_than(a(A),a(k)).
% 1.73/1.94  ** KEPT (pick-wt=15): 11 [] less_than(A,i)|less_than(n,A)| -less_than(one,i)| -less_than(a(A),a(predecessor(i))).
% 1.73/1.94  ** KEPT (pick-wt=12): 12 [] -less_than(one,A)| -less_than(A,i)| -less_than(a(A),a(predecessor(A))).
% 1.73/1.94  
% 1.73/1.94  ------------> process sos:
% 1.73/1.94  ** KEPT (pick-wt=3): 13 [] A=A.
% 1.73/1.94  ** KEPT (pick-wt=5): 14 [] predecessor(successor(A))=A.
% 1.73/1.94  ---> New Demodulator: 15 [new_demod,14] predecessor(successor(A))=A.
% 1.73/1.94  ** KEPT (pick-wt=5): 16 [] successor(predecessor(A))=A.
% 1.73/1.94  ---> New Demodulator: 17 [new_demod,16] successor(predecessor(A))=A.
% 1.73/1.94  ** KEPT (pick-wt=4): 18 [] less_than(predecessor(A),A).
% 1.73/1.94  ** KEPT (pick-wt=4): 19 [] less_than(A,successor(A)).
% 1.73/1.94  ** KEPT (pick-wt=9): 20 [] less_than(A,B)|less_than(B,A)|A=B.
% 1.73/1.94  ** KEPT (pick-wt=3): 21 [] less_than(k,j).
% 1.73/1.94  ** KEPT (pick-wt=3): 22 [] less_than(i,n).
% 1.73/1.94  ** KEPT (pick-wt=5): 23 [] less_than(a(j),a(k)).
% 1.73/1.94  ** KEPT (pick-wt=3): 24 [] less_than(j,i).
% 1.73/1.94    Following clause subsumed by 13 during input processing: 0 [copy,13,flip.1] A=A.
% 1.73/1.94  >>>> Starting back demodulation with 15.
% 1.73/1.94  >>>> Starting back demodulation with 17.
% 1.73/1.94  
% 1.73/1.94  ======= end of input processing =======
% 1.73/1.94  
% 1.73/1.94  =========== start of search ===========
% 1.73/1.94  
% 1.73/1.94  -------- PROOF -------- 
% 1.73/1.94  
% 1.73/1.94  ----> UNIT CONFLICT at   0.00 sec ----> 34 [binary,33.1,9.1] $F.
% 1.73/1.94  
% 1.73/1.94  Length of proof is 1.  Level of proof is 1.
% 1.73/1.94  
% 1.73/1.94  ---------------- PROOF ----------------
% 1.73/1.94  % SZS status Unsatisfiable
% 1.73/1.94  % SZS output start Refutation
% See solution above
% 1.73/1.94  ------------ end of proof -------------
% 1.73/1.94  
% 1.73/1.94  
% 1.73/1.94  Search stopped by max_proofs option.
% 1.73/1.94  
% 1.73/1.94  
% 1.73/1.94  Search stopped by max_proofs option.
% 1.73/1.94  
% 1.73/1.94  ============ end of search ============
% 1.73/1.94  
% 1.73/1.94  -------------- statistics -------------
% 1.73/1.94  clauses given                  4
% 1.73/1.94  clauses generated             20
% 1.73/1.94  clauses kept                  31
% 1.73/1.94  clauses forward subsumed      12
% 1.73/1.94  clauses back subsumed          0
% 1.73/1.94  Kbytes malloced              976
% 1.73/1.94  
% 1.73/1.94  ----------- times (seconds) -----------
% 1.73/1.94  user CPU time          0.00          (0 hr, 0 min, 0 sec)
% 1.73/1.94  system CPU time        0.00          (0 hr, 0 min, 0 sec)
% 1.73/1.94  wall-clock time        1             (0 hr, 0 min, 1 sec)
% 1.73/1.94  
% 1.73/1.94  That finishes the proof of the theorem.
% 1.73/1.94  
% 1.73/1.94  Process 23654 finished Wed Jul 27 06:09:08 2022
% 1.73/1.94  Otter interrupted
% 1.73/1.94  PROOF FOUND
%------------------------------------------------------------------------------