TSTP Solution File: SYN082+1 by iProver---3.8

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : iProver---3.8
% Problem  : SYN082+1 : TPTP v8.1.2. Released v2.0.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run_iprover %s %d THM

% Computer : n031.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 Sep  1 03:05:12 EDT 2023

% Result   : Theorem 1.22s 1.18s
% Output   : CNFRefutation 1.22s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   12
%            Number of leaves      :    4
% Syntax   : Number of formulae    :   24 (   2 unt;   0 def)
%            Number of atoms       :   96 (   0 equ)
%            Maximal formula atoms :   16 (   4 avg)
%            Number of connectives :  117 (  45   ~;  42   |;  22   &)
%                                         (   2 <=>;   5  =>;   0  <=;   1 <~>)
%            Maximal formula depth :   10 (   5 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :    2 (   1 usr;   1 prp; 0-2 aty)
%            Number of functors    :    4 (   4 usr;   2 con; 0-1 aty)
%            Number of variables   :   43 (   0 sgn;  21   !;  17   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f1,conjecture,
    ! [X0] :
      ( big_f(X0,f(X0))
    <=> ? [X1] :
          ( big_f(X0,X1)
          & ! [X2] :
              ( big_f(X2,X1)
             => big_f(X2,f(X0)) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',pel60) ).

fof(f2,negated_conjecture,
    ~ ! [X0] :
        ( big_f(X0,f(X0))
      <=> ? [X1] :
            ( big_f(X0,X1)
            & ! [X2] :
                ( big_f(X2,X1)
               => big_f(X2,f(X0)) ) ) ),
    inference(negated_conjecture,[],[f1]) ).

fof(f3,plain,
    ? [X0] :
      ( big_f(X0,f(X0))
    <~> ? [X1] :
          ( big_f(X0,X1)
          & ! [X2] :
              ( big_f(X2,f(X0))
              | ~ big_f(X2,X1) ) ) ),
    inference(ennf_transformation,[],[f2]) ).

fof(f4,plain,
    ? [X0] :
      ( ( ! [X1] :
            ( ~ big_f(X0,X1)
            | ? [X2] :
                ( ~ big_f(X2,f(X0))
                & big_f(X2,X1) ) )
        | ~ big_f(X0,f(X0)) )
      & ( ? [X1] :
            ( big_f(X0,X1)
            & ! [X2] :
                ( big_f(X2,f(X0))
                | ~ big_f(X2,X1) ) )
        | big_f(X0,f(X0)) ) ),
    inference(nnf_transformation,[],[f3]) ).

fof(f5,plain,
    ? [X0] :
      ( ( ! [X1] :
            ( ~ big_f(X0,X1)
            | ? [X2] :
                ( ~ big_f(X2,f(X0))
                & big_f(X2,X1) ) )
        | ~ big_f(X0,f(X0)) )
      & ( ? [X3] :
            ( big_f(X0,X3)
            & ! [X4] :
                ( big_f(X4,f(X0))
                | ~ big_f(X4,X3) ) )
        | big_f(X0,f(X0)) ) ),
    inference(rectify,[],[f4]) ).

fof(f6,plain,
    ( ? [X0] :
        ( ( ! [X1] :
              ( ~ big_f(X0,X1)
              | ? [X2] :
                  ( ~ big_f(X2,f(X0))
                  & big_f(X2,X1) ) )
          | ~ big_f(X0,f(X0)) )
        & ( ? [X3] :
              ( big_f(X0,X3)
              & ! [X4] :
                  ( big_f(X4,f(X0))
                  | ~ big_f(X4,X3) ) )
          | big_f(X0,f(X0)) ) )
   => ( ( ! [X1] :
            ( ~ big_f(sK0,X1)
            | ? [X2] :
                ( ~ big_f(X2,f(sK0))
                & big_f(X2,X1) ) )
        | ~ big_f(sK0,f(sK0)) )
      & ( ? [X3] :
            ( big_f(sK0,X3)
            & ! [X4] :
                ( big_f(X4,f(sK0))
                | ~ big_f(X4,X3) ) )
        | big_f(sK0,f(sK0)) ) ) ),
    introduced(choice_axiom,[]) ).

fof(f7,plain,
    ! [X1] :
      ( ? [X2] :
          ( ~ big_f(X2,f(sK0))
          & big_f(X2,X1) )
     => ( ~ big_f(sK1(X1),f(sK0))
        & big_f(sK1(X1),X1) ) ),
    introduced(choice_axiom,[]) ).

fof(f8,plain,
    ( ? [X3] :
        ( big_f(sK0,X3)
        & ! [X4] :
            ( big_f(X4,f(sK0))
            | ~ big_f(X4,X3) ) )
   => ( big_f(sK0,sK2)
      & ! [X4] :
          ( big_f(X4,f(sK0))
          | ~ big_f(X4,sK2) ) ) ),
    introduced(choice_axiom,[]) ).

fof(f9,plain,
    ( ( ! [X1] :
          ( ~ big_f(sK0,X1)
          | ( ~ big_f(sK1(X1),f(sK0))
            & big_f(sK1(X1),X1) ) )
      | ~ big_f(sK0,f(sK0)) )
    & ( ( big_f(sK0,sK2)
        & ! [X4] :
            ( big_f(X4,f(sK0))
            | ~ big_f(X4,sK2) ) )
      | big_f(sK0,f(sK0)) ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK0,sK1,sK2])],[f5,f8,f7,f6]) ).

fof(f10,plain,
    ! [X4] :
      ( big_f(X4,f(sK0))
      | ~ big_f(X4,sK2)
      | big_f(sK0,f(sK0)) ),
    inference(cnf_transformation,[],[f9]) ).

fof(f11,plain,
    ( big_f(sK0,sK2)
    | big_f(sK0,f(sK0)) ),
    inference(cnf_transformation,[],[f9]) ).

fof(f12,plain,
    ! [X1] :
      ( ~ big_f(sK0,X1)
      | big_f(sK1(X1),X1)
      | ~ big_f(sK0,f(sK0)) ),
    inference(cnf_transformation,[],[f9]) ).

fof(f13,plain,
    ! [X1] :
      ( ~ big_f(sK0,X1)
      | ~ big_f(sK1(X1),f(sK0))
      | ~ big_f(sK0,f(sK0)) ),
    inference(cnf_transformation,[],[f9]) ).

cnf(c_49,negated_conjecture,
    ( ~ big_f(sK1(X0),f(sK0))
    | ~ big_f(sK0,f(sK0))
    | ~ big_f(sK0,X0) ),
    inference(cnf_transformation,[],[f13]) ).

cnf(c_50,negated_conjecture,
    ( ~ big_f(sK0,f(sK0))
    | ~ big_f(sK0,X0)
    | big_f(sK1(X0),X0) ),
    inference(cnf_transformation,[],[f12]) ).

cnf(c_51,negated_conjecture,
    ( big_f(sK0,f(sK0))
    | big_f(sK0,sK2) ),
    inference(cnf_transformation,[],[f11]) ).

cnf(c_52,negated_conjecture,
    ( ~ big_f(X0,sK2)
    | big_f(X0,f(sK0))
    | big_f(sK0,f(sK0)) ),
    inference(cnf_transformation,[],[f10]) ).

cnf(c_53,plain,
    ( ~ big_f(sK0,sK2)
    | big_f(sK0,f(sK0)) ),
    inference(instantiation,[status(thm)],[c_52]) ).

cnf(c_56,negated_conjecture,
    big_f(sK0,f(sK0)),
    inference(global_subsumption_just,[status(thm)],[c_51,c_51,c_53]) ).

cnf(c_60,negated_conjecture,
    ( ~ big_f(sK0,X0)
    | big_f(sK1(X0),X0) ),
    inference(global_subsumption_just,[status(thm)],[c_50,c_50,c_56]) ).

cnf(c_63,negated_conjecture,
    ( ~ big_f(sK1(X0),f(sK0))
    | ~ big_f(sK0,X0) ),
    inference(global_subsumption_just,[status(thm)],[c_49,c_51,c_53,c_49]) ).

cnf(c_86,plain,
    ( ~ big_f(sK1(f(sK0)),f(sK0))
    | ~ big_f(sK0,f(sK0)) ),
    inference(instantiation,[status(thm)],[c_63]) ).

cnf(c_87,plain,
    ( ~ big_f(sK0,f(sK0))
    | big_f(sK1(f(sK0)),f(sK0)) ),
    inference(instantiation,[status(thm)],[c_60]) ).

cnf(c_88,plain,
    $false,
    inference(prop_impl_just,[status(thm)],[c_87,c_86,c_56]) ).


%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.13/0.13  % Problem  : SYN082+1 : TPTP v8.1.2. Released v2.0.0.
% 0.13/0.14  % Command  : run_iprover %s %d THM
% 0.15/0.35  % Computer : n031.cluster.edu
% 0.15/0.35  % Model    : x86_64 x86_64
% 0.15/0.35  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.15/0.35  % Memory   : 8042.1875MB
% 0.15/0.35  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.15/0.35  % CPULimit : 300
% 0.15/0.35  % WCLimit  : 300
% 0.15/0.35  % DateTime : Sat Aug 26 19:11:53 EDT 2023
% 0.15/0.35  % CPUTime  : 
% 0.21/0.48  Running first-order theorem proving
% 0.21/0.48  Running: /export/starexec/sandbox2/solver/bin/run_problem --schedule fof_schedule --no_cores 8 /export/starexec/sandbox2/benchmark/theBenchmark.p 300
% 1.22/1.18  % SZS status Started for theBenchmark.p
% 1.22/1.18  % SZS status Theorem for theBenchmark.p
% 1.22/1.18  
% 1.22/1.18  %---------------- iProver v3.8 (pre SMT-COMP 2023/CASC 2023) ----------------%
% 1.22/1.18  
% 1.22/1.18  ------  iProver source info
% 1.22/1.18  
% 1.22/1.18  git: date: 2023-05-31 18:12:56 +0000
% 1.22/1.18  git: sha1: 8abddc1f627fd3ce0bcb8b4cbf113b3cc443d7b6
% 1.22/1.18  git: non_committed_changes: false
% 1.22/1.18  git: last_make_outside_of_git: false
% 1.22/1.18  
% 1.22/1.18  ------ Parsing...
% 1.22/1.18  ------ Clausification by vclausify_rel  & Parsing by iProver...
% 1.22/1.18  
% 1.22/1.18  ------ Preprocessing... sf_s  rm: 0 0s  sf_e  pe_s  pe_e  sf_s  rm: 0 0s  sf_e  pe_s  pe_e 
% 1.22/1.18  
% 1.22/1.18  ------ Preprocessing... gs_s  sp: 0 0s  gs_e  snvd_s sp: 0 0s snvd_e 
% 1.22/1.18  ------ Proving...
% 1.22/1.18  ------ Problem Properties 
% 1.22/1.18  
% 1.22/1.18  
% 1.22/1.18  clauses                                 3
% 1.22/1.18  conjectures                             3
% 1.22/1.18  EPR                                     0
% 1.22/1.18  Horn                                    3
% 1.22/1.18  unary                                   1
% 1.22/1.18  binary                                  2
% 1.22/1.18  lits                                    5
% 1.22/1.18  lits eq                                 0
% 1.22/1.18  fd_pure                                 0
% 1.22/1.18  fd_pseudo                               0
% 1.22/1.18  fd_cond                                 0
% 1.22/1.18  fd_pseudo_cond                          0
% 1.22/1.18  AC symbols                              0
% 1.22/1.18  
% 1.22/1.18  ------ Schedule dynamic 5 is on 
% 1.22/1.18  
% 1.22/1.18  ------ no equalities: superposition off 
% 1.22/1.18  
% 1.22/1.18  ------ Input Options "--resolution_flag false --inst_lit_sel_side none" Time Limit: 10.
% 1.22/1.18  
% 1.22/1.18  
% 1.22/1.18  ------ 
% 1.22/1.18  Current options:
% 1.22/1.18  ------ 
% 1.22/1.18  
% 1.22/1.18  
% 1.22/1.18  
% 1.22/1.18  
% 1.22/1.18  ------ Proving...
% 1.22/1.18  
% 1.22/1.18  
% 1.22/1.18  % SZS status Theorem for theBenchmark.p
% 1.22/1.18  
% 1.22/1.18  % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 1.22/1.18  
% 1.22/1.18  
%------------------------------------------------------------------------------