TSTP Solution File: SET063+1 by iProver---3.9

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%------------------------------------------------------------------------------
% File     : iProver---3.9
% Problem  : SET063+1 : TPTP v8.1.2. Bugfixed v5.4.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run_iprover %s %d THM

% Computer : n016.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 : Fri May  3 02:59:37 EDT 2024

% Result   : Theorem 3.62s 1.17s
% Output   : CNFRefutation 3.62s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    8
%            Number of leaves      :    6
% Syntax   : Number of formulae    :   30 (  11 unt;   0 def)
%            Number of atoms       :   78 (  17 equ)
%            Maximal formula atoms :    6 (   2 avg)
%            Number of connectives :   82 (  34   ~;  23   |;  17   &)
%                                         (   3 <=>;   5  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    8 (   4 avg)
%            Maximal term depth    :    2 (   1 avg)
%            Number of predicates  :    4 (   2 usr;   1 prp; 0-2 aty)
%            Number of functors    :    3 (   3 usr;   2 con; 0-2 aty)
%            Number of variables   :   42 (   2 sgn  31   !;   5   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f1,axiom,
    ! [X0,X1] :
      ( subclass(X0,X1)
    <=> ! [X2] :
          ( member(X2,X0)
         => member(X2,X1) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',subclass_defn) ).

fof(f3,axiom,
    ! [X0,X1] :
      ( X0 = X1
    <=> ( subclass(X1,X0)
        & subclass(X0,X1) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',extensionality) ).

fof(f16,axiom,
    ! [X0] : ~ member(X0,null_class),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',null_class_defn) ).

fof(f44,conjecture,
    ! [X0] :
      ( subclass(X0,null_class)
     => null_class = X0 ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',corollary_of_null_class_is_subclass) ).

fof(f45,negated_conjecture,
    ~ ! [X0] :
        ( subclass(X0,null_class)
       => null_class = X0 ),
    inference(negated_conjecture,[],[f44]) ).

fof(f71,plain,
    ! [X0,X1] :
      ( subclass(X0,X1)
    <=> ! [X2] :
          ( member(X2,X1)
          | ~ member(X2,X0) ) ),
    inference(ennf_transformation,[],[f1]) ).

fof(f84,plain,
    ? [X0] :
      ( null_class != X0
      & subclass(X0,null_class) ),
    inference(ennf_transformation,[],[f45]) ).

fof(f85,plain,
    ! [X0,X1] :
      ( ( subclass(X0,X1)
        | ? [X2] :
            ( ~ member(X2,X1)
            & member(X2,X0) ) )
      & ( ! [X2] :
            ( member(X2,X1)
            | ~ member(X2,X0) )
        | ~ subclass(X0,X1) ) ),
    inference(nnf_transformation,[],[f71]) ).

fof(f86,plain,
    ! [X0,X1] :
      ( ( subclass(X0,X1)
        | ? [X2] :
            ( ~ member(X2,X1)
            & member(X2,X0) ) )
      & ( ! [X3] :
            ( member(X3,X1)
            | ~ member(X3,X0) )
        | ~ subclass(X0,X1) ) ),
    inference(rectify,[],[f85]) ).

fof(f87,plain,
    ! [X0,X1] :
      ( ? [X2] :
          ( ~ member(X2,X1)
          & member(X2,X0) )
     => ( ~ member(sK0(X0,X1),X1)
        & member(sK0(X0,X1),X0) ) ),
    introduced(choice_axiom,[]) ).

fof(f88,plain,
    ! [X0,X1] :
      ( ( subclass(X0,X1)
        | ( ~ member(sK0(X0,X1),X1)
          & member(sK0(X0,X1),X0) ) )
      & ( ! [X3] :
            ( member(X3,X1)
            | ~ member(X3,X0) )
        | ~ subclass(X0,X1) ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK0])],[f86,f87]) ).

fof(f89,plain,
    ! [X0,X1] :
      ( ( X0 = X1
        | ~ subclass(X1,X0)
        | ~ subclass(X0,X1) )
      & ( ( subclass(X1,X0)
          & subclass(X0,X1) )
        | X0 != X1 ) ),
    inference(nnf_transformation,[],[f3]) ).

fof(f90,plain,
    ! [X0,X1] :
      ( ( X0 = X1
        | ~ subclass(X1,X0)
        | ~ subclass(X0,X1) )
      & ( ( subclass(X1,X0)
          & subclass(X0,X1) )
        | X0 != X1 ) ),
    inference(flattening,[],[f89]) ).

fof(f133,plain,
    ( ? [X0] :
        ( null_class != X0
        & subclass(X0,null_class) )
   => ( null_class != sK6
      & subclass(sK6,null_class) ) ),
    introduced(choice_axiom,[]) ).

fof(f134,plain,
    ( null_class != sK6
    & subclass(sK6,null_class) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK6])],[f84,f133]) ).

fof(f136,plain,
    ! [X0,X1] :
      ( subclass(X0,X1)
      | member(sK0(X0,X1),X0) ),
    inference(cnf_transformation,[],[f88]) ).

fof(f141,plain,
    ! [X0,X1] :
      ( X0 = X1
      | ~ subclass(X1,X0)
      | ~ subclass(X0,X1) ),
    inference(cnf_transformation,[],[f90]) ).

fof(f166,plain,
    ! [X0] : ~ member(X0,null_class),
    inference(cnf_transformation,[],[f16]) ).

fof(f222,plain,
    subclass(sK6,null_class),
    inference(cnf_transformation,[],[f134]) ).

fof(f223,plain,
    null_class != sK6,
    inference(cnf_transformation,[],[f134]) ).

cnf(c_50,plain,
    ( member(sK0(X0,X1),X0)
    | subclass(X0,X1) ),
    inference(cnf_transformation,[],[f136]) ).

cnf(c_53,plain,
    ( ~ subclass(X0,X1)
    | ~ subclass(X1,X0)
    | X0 = X1 ),
    inference(cnf_transformation,[],[f141]) ).

cnf(c_77,plain,
    ~ member(X0,null_class),
    inference(cnf_transformation,[],[f166]) ).

cnf(c_128,negated_conjecture,
    null_class != sK6,
    inference(cnf_transformation,[],[f223]) ).

cnf(c_129,negated_conjecture,
    subclass(sK6,null_class),
    inference(cnf_transformation,[],[f222]) ).

cnf(c_1557,negated_conjecture,
    subclass(sK6,null_class),
    inference(demodulation,[status(thm)],[c_129]) ).

cnf(c_1558,negated_conjecture,
    null_class != sK6,
    inference(demodulation,[status(thm)],[c_128]) ).

cnf(c_2366,plain,
    subclass(null_class,X0),
    inference(superposition,[status(thm)],[c_50,c_77]) ).

cnf(c_2662,plain,
    ( ~ subclass(null_class,sK6)
    | null_class = sK6 ),
    inference(superposition,[status(thm)],[c_1557,c_53]) ).

cnf(c_2670,plain,
    $false,
    inference(forward_subsumption_resolution,[status(thm)],[c_2662,c_1558,c_2366]) ).


%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.12  % Problem  : SET063+1 : TPTP v8.1.2. Bugfixed v5.4.0.
% 0.03/0.13  % Command  : run_iprover %s %d THM
% 0.14/0.35  % Computer : n016.cluster.edu
% 0.14/0.35  % Model    : x86_64 x86_64
% 0.14/0.35  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/0.35  % Memory   : 8042.1875MB
% 0.14/0.35  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.14/0.35  % CPULimit : 300
% 0.14/0.35  % WCLimit  : 300
% 0.14/0.35  % DateTime : Thu May  2 20:52:00 EDT 2024
% 0.14/0.35  % CPUTime  : 
% 0.20/0.48  Running first-order theorem proving
% 0.20/0.48  Running: /export/starexec/sandbox/solver/bin/run_problem --schedule fof_schedule --heuristic_context casc_unsat --no_cores 8 /export/starexec/sandbox/benchmark/theBenchmark.p 300
% 3.62/1.17  % SZS status Started for theBenchmark.p
% 3.62/1.17  % SZS status Theorem for theBenchmark.p
% 3.62/1.17  
% 3.62/1.17  %---------------- iProver v3.9 (pre CASC 2024/SMT-COMP 2024) ----------------%
% 3.62/1.17  
% 3.62/1.17  ------  iProver source info
% 3.62/1.17  
% 3.62/1.17  git: date: 2024-05-02 19:28:25 +0000
% 3.62/1.17  git: sha1: a33b5eb135c74074ba803943bb12f2ebd971352f
% 3.62/1.17  git: non_committed_changes: false
% 3.62/1.17  
% 3.62/1.17  ------ Parsing...
% 3.62/1.17  ------ Clausification by vclausify_rel  & Parsing by iProver...
% 3.62/1.17  
% 3.62/1.17  ------ Preprocessing... sup_sim: 0  sf_s  rm: 1 0s  sf_e  pe_s  pe:1:0s pe:2:0s pe_e  sup_sim: 0  sf_s  rm: 4 0s  sf_e  pe_s  pe_e 
% 3.62/1.17  
% 3.62/1.17  ------ Preprocessing... gs_s  sp: 0 0s  gs_e  snvd_s sp: 0 0s snvd_e 
% 3.62/1.17  
% 3.62/1.17  ------ Preprocessing... sf_s  rm: 1 0s  sf_e  sf_s  rm: 0 0s  sf_e 
% 3.62/1.17  ------ Proving...
% 3.62/1.17  ------ Problem Properties 
% 3.62/1.17  
% 3.62/1.17  
% 3.62/1.17  clauses                                 76
% 3.62/1.17  conjectures                             2
% 3.62/1.17  EPR                                     9
% 3.62/1.17  Horn                                    68
% 3.62/1.17  unary                                   16
% 3.62/1.17  binary                                  39
% 3.62/1.17  lits                                    158
% 3.62/1.17  lits eq                                 15
% 3.62/1.17  fd_pure                                 0
% 3.62/1.17  fd_pseudo                               0
% 3.62/1.17  fd_cond                                 4
% 3.62/1.17  fd_pseudo_cond                          3
% 3.62/1.17  AC symbols                              0
% 3.62/1.17  
% 3.62/1.17  ------ Schedule dynamic 5 is on 
% 3.62/1.17  
% 3.62/1.17  ------ Input Options "--resolution_flag false --inst_lit_sel_side none" Time Limit: 10.
% 3.62/1.17  
% 3.62/1.17  
% 3.62/1.17  ------ 
% 3.62/1.17  Current options:
% 3.62/1.17  ------ 
% 3.62/1.17  
% 3.62/1.17  
% 3.62/1.17  
% 3.62/1.17  
% 3.62/1.17  ------ Proving...
% 3.62/1.17  
% 3.62/1.17  
% 3.62/1.17  % SZS status Theorem for theBenchmark.p
% 3.62/1.17  
% 3.62/1.17  % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 3.62/1.17  
% 3.62/1.17  
%------------------------------------------------------------------------------