TSTP Solution File: SET065+1 by iProver---3.8

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : iProver---3.8
% Problem  : SET065+1 : TPTP v8.1.2. Bugfixed v5.4.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run_iprover %s %d THM

% Computer : n008.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 : Thu Aug 31 15:06:06 EDT 2023

% Result   : Theorem 3.41s 1.13s
% Output   : CNFRefutation 3.41s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    9
%            Number of leaves      :    7
% Syntax   : Number of formulae    :   32 (  13 unt;   0 def)
%            Number of atoms       :   90 (   1 equ)
%            Maximal formula atoms :    8 (   2 avg)
%            Number of connectives :   92 (  34   ~;  28   |;  23   &)
%                                         (   3 <=>;   4  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    8 (   4 avg)
%            Maximal term depth    :    2 (   1 avg)
%            Number of predicates  :    5 (   3 usr;   1 prp; 0-2 aty)
%            Number of functors    :    6 (   6 usr;   4 con; 0-2 aty)
%            Number of variables   :   44 (   1 sgn;  31   !;   6   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f1,axiom,
    ! [X0,X1] :
      ( subclass(X0,X1)
    <=> ! [X2] :
          ( member(X2,X0)
         => member(X2,X1) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',subclass_defn) ).

fof(f2,axiom,
    ! [X0] : subclass(X0,universal_class),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',class_elements_are_sets) ).

fof(f29,axiom,
    ! [X0] :
      ( inductive(X0)
    <=> ( subclass(image(successor_relation,X0),X0)
        & member(null_class,X0) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',inductive_defn) ).

fof(f30,axiom,
    ? [X0] :
      ( ! [X1] :
          ( inductive(X1)
         => subclass(X0,X1) )
      & inductive(X0)
      & member(X0,universal_class) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',infinity) ).

fof(f44,conjecture,
    member(null_class,universal_class),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',null_class_is_a_set) ).

fof(f45,negated_conjecture,
    ~ member(null_class,universal_class),
    inference(negated_conjecture,[],[f44]) ).

fof(f70,plain,
    ~ member(null_class,universal_class),
    inference(flattening,[],[f45]) ).

fof(f72,plain,
    ! [X0,X1] :
      ( subclass(X0,X1)
    <=> ! [X2] :
          ( member(X2,X1)
          | ~ member(X2,X0) ) ),
    inference(ennf_transformation,[],[f1]) ).

fof(f76,plain,
    ? [X0] :
      ( ! [X1] :
          ( subclass(X0,X1)
          | ~ inductive(X1) )
      & inductive(X0)
      & member(X0,universal_class) ),
    inference(ennf_transformation,[],[f30]) ).

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,[],[f72]) ).

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(f111,plain,
    ! [X0] :
      ( ( inductive(X0)
        | ~ subclass(image(successor_relation,X0),X0)
        | ~ member(null_class,X0) )
      & ( ( subclass(image(successor_relation,X0),X0)
          & member(null_class,X0) )
        | ~ inductive(X0) ) ),
    inference(nnf_transformation,[],[f29]) ).

fof(f112,plain,
    ! [X0] :
      ( ( inductive(X0)
        | ~ subclass(image(successor_relation,X0),X0)
        | ~ member(null_class,X0) )
      & ( ( subclass(image(successor_relation,X0),X0)
          & member(null_class,X0) )
        | ~ inductive(X0) ) ),
    inference(flattening,[],[f111]) ).

fof(f113,plain,
    ( ? [X0] :
        ( ! [X1] :
            ( subclass(X0,X1)
            | ~ inductive(X1) )
        & inductive(X0)
        & member(X0,universal_class) )
   => ( ! [X1] :
          ( subclass(sK1,X1)
          | ~ inductive(X1) )
      & inductive(sK1)
      & member(sK1,universal_class) ) ),
    introduced(choice_axiom,[]) ).

fof(f114,plain,
    ( ! [X1] :
        ( subclass(sK1,X1)
        | ~ inductive(X1) )
    & inductive(sK1)
    & member(sK1,universal_class) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK1])],[f76,f113]) ).

fof(f133,plain,
    ! [X3,X0,X1] :
      ( member(X3,X1)
      | ~ member(X3,X0)
      | ~ subclass(X0,X1) ),
    inference(cnf_transformation,[],[f88]) ).

fof(f136,plain,
    ! [X0] : subclass(X0,universal_class),
    inference(cnf_transformation,[],[f2]) ).

fof(f188,plain,
    ! [X0] :
      ( member(null_class,X0)
      | ~ inductive(X0) ),
    inference(cnf_transformation,[],[f112]) ).

fof(f192,plain,
    inductive(sK1),
    inference(cnf_transformation,[],[f114]) ).

fof(f220,plain,
    ~ member(null_class,universal_class),
    inference(cnf_transformation,[],[f70]) ).

cnf(c_51,plain,
    ( ~ subclass(X0,X1)
    | ~ member(X2,X0)
    | member(X2,X1) ),
    inference(cnf_transformation,[],[f133]) ).

cnf(c_52,plain,
    subclass(X0,universal_class),
    inference(cnf_transformation,[],[f136]) ).

cnf(c_99,plain,
    ( ~ inductive(X0)
    | member(null_class,X0) ),
    inference(cnf_transformation,[],[f188]) ).

cnf(c_101,plain,
    inductive(sK1),
    inference(cnf_transformation,[],[f192]) ).

cnf(c_128,negated_conjecture,
    ~ member(null_class,universal_class),
    inference(cnf_transformation,[],[f220]) ).

cnf(c_878,plain,
    ( X0 != sK1
    | member(null_class,X0) ),
    inference(resolution_lifted,[status(thm)],[c_99,c_101]) ).

cnf(c_879,plain,
    member(null_class,sK1),
    inference(unflattening,[status(thm)],[c_878]) ).

cnf(c_2578,plain,
    ( ~ subclass(sK1,X0)
    | member(null_class,X0) ),
    inference(superposition,[status(thm)],[c_879,c_51]) ).

cnf(c_2722,plain,
    member(null_class,universal_class),
    inference(superposition,[status(thm)],[c_52,c_2578]) ).

cnf(c_2724,plain,
    $false,
    inference(forward_subsumption_resolution,[status(thm)],[c_2722,c_128]) ).


%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.10  % Problem  : SET065+1 : TPTP v8.1.2. Bugfixed v5.4.0.
% 0.00/0.11  % Command  : run_iprover %s %d THM
% 0.13/0.32  % Computer : n008.cluster.edu
% 0.13/0.32  % Model    : x86_64 x86_64
% 0.13/0.32  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.32  % Memory   : 8042.1875MB
% 0.13/0.32  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.32  % CPULimit : 300
% 0.13/0.32  % WCLimit  : 300
% 0.13/0.32  % DateTime : Sat Aug 26 14:32:47 EDT 2023
% 0.13/0.32  % CPUTime  : 
% 0.16/0.42  Running first-order theorem proving
% 0.16/0.42  Running: /export/starexec/sandbox2/solver/bin/run_problem --schedule fof_schedule --no_cores 8 /export/starexec/sandbox2/benchmark/theBenchmark.p 300
% 3.41/1.13  % SZS status Started for theBenchmark.p
% 3.41/1.13  % SZS status Theorem for theBenchmark.p
% 3.41/1.13  
% 3.41/1.13  %---------------- iProver v3.8 (pre SMT-COMP 2023/CASC 2023) ----------------%
% 3.41/1.13  
% 3.41/1.13  ------  iProver source info
% 3.41/1.13  
% 3.41/1.13  git: date: 2023-05-31 18:12:56 +0000
% 3.41/1.13  git: sha1: 8abddc1f627fd3ce0bcb8b4cbf113b3cc443d7b6
% 3.41/1.13  git: non_committed_changes: false
% 3.41/1.13  git: last_make_outside_of_git: false
% 3.41/1.13  
% 3.41/1.13  ------ Parsing...
% 3.41/1.13  ------ Clausification by vclausify_rel  & Parsing by iProver...
% 3.41/1.13  
% 3.41/1.13  ------ 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 
% 3.41/1.13  
% 3.41/1.13  ------ Preprocessing... gs_s  sp: 0 0s  gs_e  snvd_s sp: 0 0s snvd_e 
% 3.41/1.13  
% 3.41/1.13  ------ Preprocessing... sf_s  rm: 1 0s  sf_e  sf_s  rm: 0 0s  sf_e 
% 3.41/1.13  ------ Proving...
% 3.41/1.13  ------ Problem Properties 
% 3.41/1.13  
% 3.41/1.13  
% 3.41/1.13  clauses                                 75
% 3.41/1.13  conjectures                             1
% 3.41/1.13  EPR                                     8
% 3.41/1.13  Horn                                    67
% 3.41/1.13  unary                                   15
% 3.41/1.13  binary                                  39
% 3.41/1.13  lits                                    157
% 3.41/1.13  lits eq                                 14
% 3.41/1.13  fd_pure                                 0
% 3.41/1.13  fd_pseudo                               0
% 3.41/1.13  fd_cond                                 4
% 3.41/1.13  fd_pseudo_cond                          3
% 3.41/1.13  AC symbols                              0
% 3.41/1.13  
% 3.41/1.13  ------ Schedule dynamic 5 is on 
% 3.41/1.13  
% 3.41/1.13  ------ Input Options "--resolution_flag false --inst_lit_sel_side none" Time Limit: 10.
% 3.41/1.13  
% 3.41/1.13  
% 3.41/1.13  ------ 
% 3.41/1.13  Current options:
% 3.41/1.13  ------ 
% 3.41/1.13  
% 3.41/1.13  
% 3.41/1.13  
% 3.41/1.13  
% 3.41/1.13  ------ Proving...
% 3.41/1.13  
% 3.41/1.13  
% 3.41/1.13  % SZS status Theorem for theBenchmark.p
% 3.41/1.13  
% 3.41/1.13  % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 3.41/1.13  
% 3.41/1.13  
%------------------------------------------------------------------------------