TSTP Solution File: NUN062+2 by Drodi---3.5.1

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%------------------------------------------------------------------------------
% File     : Drodi---3.5.1
% Problem  : NUN062+2 : TPTP v8.1.2. Released v7.3.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : drodi -learnfrom(drodi.lrn) -timeout(%d) %s

% Computer : n009.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 May 31 12:31:13 EDT 2023

% Result   : Theorem 0.20s 0.37s
% Output   : CNFRefutation 0.20s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    9
%            Number of leaves      :    4
% Syntax   : Number of formulae    :   24 (   7 unt;   0 def)
%            Number of atoms       :   68 (  22 equ)
%            Maximal formula atoms :    5 (   2 avg)
%            Number of connectives :   73 (  29   ~;  21   |;  23   &)
%                                         (   0 <=>;   0  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    9 (   6 avg)
%            Maximal term depth    :    2 (   1 avg)
%            Number of predicates  :    6 (   4 usr;   1 prp; 0-3 aty)
%            Number of functors    :   10 (  10 usr;   1 con; 0-2 aty)
%            Number of variables   :   69 (;  51   !;  18   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f5,axiom,
    ! [X1,X8] :
    ? [Y4] :
      ( ? [Y5] :
          ( ? [Y15] :
              ( r2(X8,Y15)
              & r3(X1,Y15,Y5) )
          & Y5 = Y4 )
      & ? [Y7] :
          ( r2(Y7,Y4)
          & r3(X1,X8,Y7) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f6,axiom,
    ! [X2,X9] :
    ? [Y2] :
      ( ? [Y3] :
          ( ? [Y14] :
              ( r2(X9,Y14)
              & r4(X2,Y14,Y3) )
          & Y3 = Y2 )
      & ? [Y6] :
          ( r3(Y6,X2,Y2)
          & r4(X2,X9,Y6) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f11,axiom,
    ! [X7,Y10] :
      ( ! [Y20] :
          ( ~ r1(Y20)
          | Y20 != Y10 )
      | ~ r2(X7,Y10) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f12,conjecture,
    ! [X1] :
    ? [Y2,Y1] :
      ( ! [Y4] :
          ( ~ r1(Y4)
          | Y1 != Y4 )
      & ? [Y3] :
          ( r3(X1,Y1,Y3)
          & Y3 = Y2 ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f13,negated_conjecture,
    ~ ! [X1] :
      ? [Y2,Y1] :
        ( ! [Y4] :
            ( ~ r1(Y4)
            | Y1 != Y4 )
        & ? [Y3] :
            ( r3(X1,Y1,Y3)
            & Y3 = Y2 ) ),
    inference(negated_conjecture,[status(cth)],[f12]) ).

fof(f34,plain,
    ! [X1,X8] :
      ( r2(X8,sk0_6(X8,X1))
      & r3(X1,sk0_6(X8,X1),sk0_5(X8,X1))
      & sk0_5(X8,X1) = sk0_4(X8,X1)
      & r2(sk0_7(X8,X1),sk0_4(X8,X1))
      & r3(X1,X8,sk0_7(X8,X1)) ),
    inference(skolemization,[status(esa)],[f5]) ).

fof(f39,plain,
    ! [X0,X1] : r3(X0,X1,sk0_7(X1,X0)),
    inference(cnf_transformation,[status(esa)],[f34]) ).

fof(f40,plain,
    ! [X2,X9] :
      ( r2(X9,sk0_10(X9,X2))
      & r4(X2,sk0_10(X9,X2),sk0_9(X9,X2))
      & sk0_9(X9,X2) = sk0_8(X9,X2)
      & r3(sk0_11(X9,X2),X2,sk0_8(X9,X2))
      & r4(X2,X9,sk0_11(X9,X2)) ),
    inference(skolemization,[status(esa)],[f6]) ).

fof(f41,plain,
    ! [X0,X1] : r2(X0,sk0_10(X0,X1)),
    inference(cnf_transformation,[status(esa)],[f40]) ).

fof(f62,plain,
    ! [Y10] :
      ( ! [Y20] :
          ( ~ r1(Y20)
          | Y20 != Y10 )
      | ! [X7] : ~ r2(X7,Y10) ),
    inference(miniscoping,[status(esa)],[f11]) ).

fof(f63,plain,
    ! [X0,X1,X2] :
      ( ~ r1(X0)
      | X0 != X1
      | ~ r2(X2,X1) ),
    inference(cnf_transformation,[status(esa)],[f62]) ).

fof(f64,plain,
    ? [X1] :
    ! [Y2,Y1] :
      ( ? [Y4] :
          ( r1(Y4)
          & Y1 = Y4 )
      | ! [Y3] :
          ( ~ r3(X1,Y1,Y3)
          | Y3 != Y2 ) ),
    inference(pre_NNF_transformation,[status(esa)],[f13]) ).

fof(f65,plain,
    ? [X1] :
    ! [Y1] :
      ( ? [Y4] :
          ( r1(Y4)
          & Y1 = Y4 )
      | ! [Y3] :
          ( ~ r3(X1,Y1,Y3)
          | ! [Y2] : Y3 != Y2 ) ),
    inference(miniscoping,[status(esa)],[f64]) ).

fof(f66,plain,
    ! [Y1] :
      ( ( r1(sk0_21(Y1))
        & Y1 = sk0_21(Y1) )
      | ! [Y3] :
          ( ~ r3(sk0_20,Y1,Y3)
          | ! [Y2] : Y3 != Y2 ) ),
    inference(skolemization,[status(esa)],[f65]) ).

fof(f67,plain,
    ! [X0,X1,X2] :
      ( r1(sk0_21(X0))
      | ~ r3(sk0_20,X0,X1)
      | X1 != X2 ),
    inference(cnf_transformation,[status(esa)],[f66]) ).

fof(f68,plain,
    ! [X0,X1,X2] :
      ( X0 = sk0_21(X0)
      | ~ r3(sk0_20,X0,X1)
      | X1 != X2 ),
    inference(cnf_transformation,[status(esa)],[f66]) ).

fof(f85,plain,
    ! [X0,X1] :
      ( ~ r1(X0)
      | ~ r2(X1,X0) ),
    inference(destructive_equality_resolution,[status(esa)],[f63]) ).

fof(f86,plain,
    ! [X0,X1] :
      ( r1(sk0_21(X0))
      | ~ r3(sk0_20,X0,X1) ),
    inference(destructive_equality_resolution,[status(esa)],[f67]) ).

fof(f87,plain,
    ! [X0,X1] :
      ( X0 = sk0_21(X0)
      | ~ r3(sk0_20,X0,X1) ),
    inference(destructive_equality_resolution,[status(esa)],[f68]) ).

fof(f97,plain,
    ! [X0,X1] : ~ r1(sk0_10(X0,X1)),
    inference(resolution,[status(thm)],[f41,f85]) ).

fof(f106,plain,
    ! [X0] : r1(sk0_21(X0)),
    inference(resolution,[status(thm)],[f39,f86]) ).

fof(f107,plain,
    ! [X0] : X0 = sk0_21(X0),
    inference(resolution,[status(thm)],[f39,f87]) ).

fof(f110,plain,
    ! [X0] : r1(X0),
    inference(forward_demodulation,[status(thm)],[f107,f106]) ).

fof(f111,plain,
    $false,
    inference(backward_subsumption_resolution,[status(thm)],[f97,f110]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.04/0.12  % Problem  : NUN062+2 : TPTP v8.1.2. Released v7.3.0.
% 0.04/0.13  % Command  : drodi -learnfrom(drodi.lrn) -timeout(%d) %s
% 0.14/0.34  % Computer : n009.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 : Tue May 30 10:39:46 EDT 2023
% 0.14/0.34  % CPUTime  : 
% 0.14/0.35  % Drodi V3.5.1
% 0.20/0.37  % Refutation found
% 0.20/0.37  % SZS status Theorem for theBenchmark: Theorem is valid
% 0.20/0.37  % SZS output start CNFRefutation for theBenchmark
% See solution above
% 0.20/0.37  % Elapsed time: 0.021879 seconds
% 0.20/0.37  % CPU time: 0.031161 seconds
% 0.20/0.37  % Memory used: 14.505 MB
%------------------------------------------------------------------------------