TSTP Solution File: HEN009-4 by Drodi---3.5.1

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%------------------------------------------------------------------------------
% File     : Drodi---3.5.1
% Problem  : HEN009-4 : TPTP v8.1.2. Bugfixed v1.2.1.
% Transfm  : none
% Format   : tptp:raw
% Command  : drodi -learnfrom(drodi.lrn) -timeout(%d) %s

% Computer : n001.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 12:12:51 EDT 2023

% Result   : Unsatisfiable 0.20s 0.43s
% Output   : CNFRefutation 0.20s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    6
%            Number of leaves      :    8
% Syntax   : Number of formulae    :   27 (   9 unt;   0 def)
%            Number of atoms       :   47 (   8 equ)
%            Maximal formula atoms :    3 (   1 avg)
%            Number of connectives :   40 (  20   ~;  18   |;   0   &)
%                                         (   2 <=>;   0  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    6 (   3 avg)
%            Maximal term depth    :    4 (   1 avg)
%            Number of predicates  :    5 (   3 usr;   3 prp; 0-2 aty)
%            Number of functors    :    4 (   4 usr;   3 con; 0-2 aty)
%            Number of variables   :   28 (;  28   !;   0   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f2,axiom,
    ! [X,Y] :
      ( divide(X,Y) != zero
      | less_equal(X,Y) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f6,axiom,
    ! [X,Y] :
      ( ~ less_equal(X,Y)
      | ~ less_equal(Y,X)
      | X = Y ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f10,axiom,
    ! [X] : divide(X,X) = zero,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f13,axiom,
    ! [X,Y,Z] :
      ( ~ less_equal(divide(X,Y),Z)
      | less_equal(divide(X,Z),Y) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f14,axiom,
    ! [X,Y,Z] :
      ( ~ less_equal(X,Y)
      | less_equal(divide(Z,Y),divide(Z,X)) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f16,negated_conjecture,
    divide(identity,a) != divide(identity,divide(identity,divide(identity,a))),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f18,plain,
    ! [X0,X1] :
      ( divide(X0,X1) != zero
      | less_equal(X0,X1) ),
    inference(cnf_transformation,[status(esa)],[f2]) ).

fof(f22,plain,
    ! [X0,X1] :
      ( ~ less_equal(X0,X1)
      | ~ less_equal(X1,X0)
      | X0 = X1 ),
    inference(cnf_transformation,[status(esa)],[f6]) ).

fof(f26,plain,
    ! [X0] : divide(X0,X0) = zero,
    inference(cnf_transformation,[status(esa)],[f10]) ).

fof(f30,plain,
    ! [X0,X1,X2] :
      ( ~ less_equal(divide(X0,X1),X2)
      | less_equal(divide(X0,X2),X1) ),
    inference(cnf_transformation,[status(esa)],[f13]) ).

fof(f31,plain,
    ! [X,Y] :
      ( ~ less_equal(X,Y)
      | ! [Z] : less_equal(divide(Z,Y),divide(Z,X)) ),
    inference(miniscoping,[status(esa)],[f14]) ).

fof(f32,plain,
    ! [X0,X1,X2] :
      ( ~ less_equal(X0,X1)
      | less_equal(divide(X2,X1),divide(X2,X0)) ),
    inference(cnf_transformation,[status(esa)],[f31]) ).

fof(f35,plain,
    divide(identity,a) != divide(identity,divide(identity,divide(identity,a))),
    inference(cnf_transformation,[status(esa)],[f16]) ).

fof(f86,plain,
    ! [X0] : less_equal(X0,X0),
    inference(resolution,[status(thm)],[f18,f26]) ).

fof(f118,plain,
    ( spl0_11
  <=> less_equal(divide(identity,a),divide(identity,divide(identity,divide(identity,a)))) ),
    introduced(split_symbol_definition) ).

fof(f120,plain,
    ( ~ less_equal(divide(identity,a),divide(identity,divide(identity,divide(identity,a))))
    | spl0_11 ),
    inference(component_clause,[status(thm)],[f118]) ).

fof(f121,plain,
    ( spl0_12
  <=> less_equal(divide(identity,divide(identity,divide(identity,a))),divide(identity,a)) ),
    introduced(split_symbol_definition) ).

fof(f123,plain,
    ( ~ less_equal(divide(identity,divide(identity,divide(identity,a))),divide(identity,a))
    | spl0_12 ),
    inference(component_clause,[status(thm)],[f121]) ).

fof(f124,plain,
    ( ~ less_equal(divide(identity,a),divide(identity,divide(identity,divide(identity,a))))
    | ~ less_equal(divide(identity,divide(identity,divide(identity,a))),divide(identity,a)) ),
    inference(resolution,[status(thm)],[f22,f35]) ).

fof(f125,plain,
    ( ~ spl0_11
    | ~ spl0_12 ),
    inference(split_clause,[status(thm)],[f124,f118,f121]) ).

fof(f799,plain,
    ! [X0,X1] : less_equal(divide(X0,divide(X0,X1)),X1),
    inference(resolution,[status(thm)],[f30,f86]) ).

fof(f924,plain,
    ( $false
    | spl0_12 ),
    inference(forward_subsumption_resolution,[status(thm)],[f123,f799]) ).

fof(f925,plain,
    spl0_12,
    inference(contradiction_clause,[status(thm)],[f924]) ).

fof(f993,plain,
    ( ~ less_equal(divide(identity,divide(identity,a)),a)
    | spl0_11 ),
    inference(resolution,[status(thm)],[f120,f32]) ).

fof(f994,plain,
    ( $false
    | spl0_11 ),
    inference(forward_subsumption_resolution,[status(thm)],[f993,f799]) ).

fof(f995,plain,
    spl0_11,
    inference(contradiction_clause,[status(thm)],[f994]) ).

fof(f996,plain,
    $false,
    inference(sat_refutation,[status(thm)],[f125,f925,f995]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.10/0.12  % Problem  : HEN009-4 : TPTP v8.1.2. Bugfixed v1.2.1.
% 0.10/0.13  % Command  : drodi -learnfrom(drodi.lrn) -timeout(%d) %s
% 0.14/0.34  % Computer : n001.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 10:03:45 EDT 2023
% 0.14/0.34  % CPUTime  : 
% 0.14/0.35  % Drodi V3.5.1
% 0.20/0.43  % Refutation found
% 0.20/0.43  % SZS status Unsatisfiable for theBenchmark: Theory is unsatisfiable
% 0.20/0.43  % SZS output start CNFRefutation for theBenchmark
% See solution above
% 0.20/0.45  % Elapsed time: 0.101963 seconds
% 0.20/0.45  % CPU time: 0.670113 seconds
% 0.20/0.45  % Memory used: 40.555 MB
%------------------------------------------------------------------------------