TSTP Solution File: SEU137+1 by iProver---3.8

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : iProver---3.8
% Problem  : SEU137+1 : TPTP v8.1.2. Released v3.3.0.
% 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 : Thu Aug 31 17:03:58 EDT 2023

% Result   : Theorem 3.27s 1.18s
% Output   : CNFRefutation 3.27s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   10
%            Number of leaves      :    7
% Syntax   : Number of formulae    :   48 (   5 unt;   0 def)
%            Number of atoms       :  239 (  39 equ)
%            Maximal formula atoms :   14 (   4 avg)
%            Number of connectives :  301 ( 110   ~; 125   |;  53   &)
%                                         (   5 <=>;   8  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   11 (   6 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :    4 (   2 usr;   1 prp; 0-2 aty)
%            Number of functors    :    6 (   6 usr;   2 con; 0-3 aty)
%            Number of variables   :  120 (   1 sgn;  85   !;  12   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f3,axiom,
    ! [X0,X1,X2] :
      ( set_union2(X0,X1) = X2
    <=> ! [X3] :
          ( in(X3,X2)
        <=> ( in(X3,X1)
            | in(X3,X0) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d2_xboole_0) ).

fof(f4,axiom,
    ! [X0,X1] :
      ( subset(X0,X1)
    <=> ! [X2] :
          ( in(X2,X0)
         => in(X2,X1) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d3_tarski) ).

fof(f5,axiom,
    ! [X0,X1,X2] :
      ( set_difference(X0,X1) = X2
    <=> ! [X3] :
          ( in(X3,X2)
        <=> ( ~ in(X3,X1)
            & in(X3,X0) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d4_xboole_0) ).

fof(f19,conjecture,
    ! [X0,X1] :
      ( subset(X0,X1)
     => set_union2(X0,set_difference(X1,X0)) = X1 ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t45_xboole_1) ).

fof(f20,negated_conjecture,
    ~ ! [X0,X1] :
        ( subset(X0,X1)
       => set_union2(X0,set_difference(X1,X0)) = X1 ),
    inference(negated_conjecture,[],[f19]) ).

fof(f27,plain,
    ! [X0,X1] :
      ( subset(X0,X1)
     => ! [X2] :
          ( in(X2,X0)
         => in(X2,X1) ) ),
    inference(unused_predicate_definition_removal,[],[f4]) ).

fof(f29,plain,
    ! [X0,X1] :
      ( ! [X2] :
          ( in(X2,X1)
          | ~ in(X2,X0) )
      | ~ subset(X0,X1) ),
    inference(ennf_transformation,[],[f27]) ).

fof(f33,plain,
    ? [X0,X1] :
      ( set_union2(X0,set_difference(X1,X0)) != X1
      & subset(X0,X1) ),
    inference(ennf_transformation,[],[f20]) ).

fof(f37,plain,
    ! [X0,X1,X2] :
      ( ( set_union2(X0,X1) = X2
        | ? [X3] :
            ( ( ( ~ in(X3,X1)
                & ~ in(X3,X0) )
              | ~ in(X3,X2) )
            & ( in(X3,X1)
              | in(X3,X0)
              | in(X3,X2) ) ) )
      & ( ! [X3] :
            ( ( in(X3,X2)
              | ( ~ in(X3,X1)
                & ~ in(X3,X0) ) )
            & ( in(X3,X1)
              | in(X3,X0)
              | ~ in(X3,X2) ) )
        | set_union2(X0,X1) != X2 ) ),
    inference(nnf_transformation,[],[f3]) ).

fof(f38,plain,
    ! [X0,X1,X2] :
      ( ( set_union2(X0,X1) = X2
        | ? [X3] :
            ( ( ( ~ in(X3,X1)
                & ~ in(X3,X0) )
              | ~ in(X3,X2) )
            & ( in(X3,X1)
              | in(X3,X0)
              | in(X3,X2) ) ) )
      & ( ! [X3] :
            ( ( in(X3,X2)
              | ( ~ in(X3,X1)
                & ~ in(X3,X0) ) )
            & ( in(X3,X1)
              | in(X3,X0)
              | ~ in(X3,X2) ) )
        | set_union2(X0,X1) != X2 ) ),
    inference(flattening,[],[f37]) ).

fof(f39,plain,
    ! [X0,X1,X2] :
      ( ( set_union2(X0,X1) = X2
        | ? [X3] :
            ( ( ( ~ in(X3,X1)
                & ~ in(X3,X0) )
              | ~ in(X3,X2) )
            & ( in(X3,X1)
              | in(X3,X0)
              | in(X3,X2) ) ) )
      & ( ! [X4] :
            ( ( in(X4,X2)
              | ( ~ in(X4,X1)
                & ~ in(X4,X0) ) )
            & ( in(X4,X1)
              | in(X4,X0)
              | ~ in(X4,X2) ) )
        | set_union2(X0,X1) != X2 ) ),
    inference(rectify,[],[f38]) ).

fof(f40,plain,
    ! [X0,X1,X2] :
      ( ? [X3] :
          ( ( ( ~ in(X3,X1)
              & ~ in(X3,X0) )
            | ~ in(X3,X2) )
          & ( in(X3,X1)
            | in(X3,X0)
            | in(X3,X2) ) )
     => ( ( ( ~ in(sK0(X0,X1,X2),X1)
            & ~ in(sK0(X0,X1,X2),X0) )
          | ~ in(sK0(X0,X1,X2),X2) )
        & ( in(sK0(X0,X1,X2),X1)
          | in(sK0(X0,X1,X2),X0)
          | in(sK0(X0,X1,X2),X2) ) ) ),
    introduced(choice_axiom,[]) ).

fof(f41,plain,
    ! [X0,X1,X2] :
      ( ( set_union2(X0,X1) = X2
        | ( ( ( ~ in(sK0(X0,X1,X2),X1)
              & ~ in(sK0(X0,X1,X2),X0) )
            | ~ in(sK0(X0,X1,X2),X2) )
          & ( in(sK0(X0,X1,X2),X1)
            | in(sK0(X0,X1,X2),X0)
            | in(sK0(X0,X1,X2),X2) ) ) )
      & ( ! [X4] :
            ( ( in(X4,X2)
              | ( ~ in(X4,X1)
                & ~ in(X4,X0) ) )
            & ( in(X4,X1)
              | in(X4,X0)
              | ~ in(X4,X2) ) )
        | set_union2(X0,X1) != X2 ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK0])],[f39,f40]) ).

fof(f42,plain,
    ! [X0,X1,X2] :
      ( ( set_difference(X0,X1) = X2
        | ? [X3] :
            ( ( in(X3,X1)
              | ~ in(X3,X0)
              | ~ in(X3,X2) )
            & ( ( ~ in(X3,X1)
                & in(X3,X0) )
              | in(X3,X2) ) ) )
      & ( ! [X3] :
            ( ( in(X3,X2)
              | in(X3,X1)
              | ~ in(X3,X0) )
            & ( ( ~ in(X3,X1)
                & in(X3,X0) )
              | ~ in(X3,X2) ) )
        | set_difference(X0,X1) != X2 ) ),
    inference(nnf_transformation,[],[f5]) ).

fof(f43,plain,
    ! [X0,X1,X2] :
      ( ( set_difference(X0,X1) = X2
        | ? [X3] :
            ( ( in(X3,X1)
              | ~ in(X3,X0)
              | ~ in(X3,X2) )
            & ( ( ~ in(X3,X1)
                & in(X3,X0) )
              | in(X3,X2) ) ) )
      & ( ! [X3] :
            ( ( in(X3,X2)
              | in(X3,X1)
              | ~ in(X3,X0) )
            & ( ( ~ in(X3,X1)
                & in(X3,X0) )
              | ~ in(X3,X2) ) )
        | set_difference(X0,X1) != X2 ) ),
    inference(flattening,[],[f42]) ).

fof(f44,plain,
    ! [X0,X1,X2] :
      ( ( set_difference(X0,X1) = X2
        | ? [X3] :
            ( ( in(X3,X1)
              | ~ in(X3,X0)
              | ~ in(X3,X2) )
            & ( ( ~ in(X3,X1)
                & in(X3,X0) )
              | in(X3,X2) ) ) )
      & ( ! [X4] :
            ( ( in(X4,X2)
              | in(X4,X1)
              | ~ in(X4,X0) )
            & ( ( ~ in(X4,X1)
                & in(X4,X0) )
              | ~ in(X4,X2) ) )
        | set_difference(X0,X1) != X2 ) ),
    inference(rectify,[],[f43]) ).

fof(f45,plain,
    ! [X0,X1,X2] :
      ( ? [X3] :
          ( ( in(X3,X1)
            | ~ in(X3,X0)
            | ~ in(X3,X2) )
          & ( ( ~ in(X3,X1)
              & in(X3,X0) )
            | in(X3,X2) ) )
     => ( ( in(sK1(X0,X1,X2),X1)
          | ~ in(sK1(X0,X1,X2),X0)
          | ~ in(sK1(X0,X1,X2),X2) )
        & ( ( ~ in(sK1(X0,X1,X2),X1)
            & in(sK1(X0,X1,X2),X0) )
          | in(sK1(X0,X1,X2),X2) ) ) ),
    introduced(choice_axiom,[]) ).

fof(f46,plain,
    ! [X0,X1,X2] :
      ( ( set_difference(X0,X1) = X2
        | ( ( in(sK1(X0,X1,X2),X1)
            | ~ in(sK1(X0,X1,X2),X0)
            | ~ in(sK1(X0,X1,X2),X2) )
          & ( ( ~ in(sK1(X0,X1,X2),X1)
              & in(sK1(X0,X1,X2),X0) )
            | in(sK1(X0,X1,X2),X2) ) ) )
      & ( ! [X4] :
            ( ( in(X4,X2)
              | in(X4,X1)
              | ~ in(X4,X0) )
            & ( ( ~ in(X4,X1)
                & in(X4,X0) )
              | ~ in(X4,X2) ) )
        | set_difference(X0,X1) != X2 ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK1])],[f44,f45]) ).

fof(f54,plain,
    ( ? [X0,X1] :
        ( set_union2(X0,set_difference(X1,X0)) != X1
        & subset(X0,X1) )
   => ( sK6 != set_union2(sK5,set_difference(sK6,sK5))
      & subset(sK5,sK6) ) ),
    introduced(choice_axiom,[]) ).

fof(f55,plain,
    ( sK6 != set_union2(sK5,set_difference(sK6,sK5))
    & subset(sK5,sK6) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK5,sK6])],[f33,f54]) ).

fof(f61,plain,
    ! [X2,X0,X1] :
      ( set_union2(X0,X1) = X2
      | in(sK0(X0,X1,X2),X1)
      | in(sK0(X0,X1,X2),X0)
      | in(sK0(X0,X1,X2),X2) ),
    inference(cnf_transformation,[],[f41]) ).

fof(f62,plain,
    ! [X2,X0,X1] :
      ( set_union2(X0,X1) = X2
      | ~ in(sK0(X0,X1,X2),X0)
      | ~ in(sK0(X0,X1,X2),X2) ),
    inference(cnf_transformation,[],[f41]) ).

fof(f63,plain,
    ! [X2,X0,X1] :
      ( set_union2(X0,X1) = X2
      | ~ in(sK0(X0,X1,X2),X1)
      | ~ in(sK0(X0,X1,X2),X2) ),
    inference(cnf_transformation,[],[f41]) ).

fof(f64,plain,
    ! [X2,X0,X1] :
      ( in(X2,X1)
      | ~ in(X2,X0)
      | ~ subset(X0,X1) ),
    inference(cnf_transformation,[],[f29]) ).

fof(f65,plain,
    ! [X2,X0,X1,X4] :
      ( in(X4,X0)
      | ~ in(X4,X2)
      | set_difference(X0,X1) != X2 ),
    inference(cnf_transformation,[],[f46]) ).

fof(f67,plain,
    ! [X2,X0,X1,X4] :
      ( in(X4,X2)
      | in(X4,X1)
      | ~ in(X4,X0)
      | set_difference(X0,X1) != X2 ),
    inference(cnf_transformation,[],[f46]) ).

fof(f82,plain,
    subset(sK5,sK6),
    inference(cnf_transformation,[],[f55]) ).

fof(f83,plain,
    sK6 != set_union2(sK5,set_difference(sK6,sK5)),
    inference(cnf_transformation,[],[f55]) ).

fof(f91,plain,
    ! [X0,X1,X4] :
      ( in(X4,set_difference(X0,X1))
      | in(X4,X1)
      | ~ in(X4,X0) ),
    inference(equality_resolution,[],[f67]) ).

fof(f93,plain,
    ! [X0,X1,X4] :
      ( in(X4,X0)
      | ~ in(X4,set_difference(X0,X1)) ),
    inference(equality_resolution,[],[f65]) ).

cnf(c_51,plain,
    ( ~ in(sK0(X0,X1,X2),X1)
    | ~ in(sK0(X0,X1,X2),X2)
    | set_union2(X0,X1) = X2 ),
    inference(cnf_transformation,[],[f63]) ).

cnf(c_52,plain,
    ( ~ in(sK0(X0,X1,X2),X0)
    | ~ in(sK0(X0,X1,X2),X2)
    | set_union2(X0,X1) = X2 ),
    inference(cnf_transformation,[],[f62]) ).

cnf(c_53,plain,
    ( set_union2(X0,X1) = X2
    | in(sK0(X0,X1,X2),X0)
    | in(sK0(X0,X1,X2),X1)
    | in(sK0(X0,X1,X2),X2) ),
    inference(cnf_transformation,[],[f61]) ).

cnf(c_57,plain,
    ( ~ in(X0,X1)
    | ~ subset(X1,X2)
    | in(X0,X2) ),
    inference(cnf_transformation,[],[f64]) ).

cnf(c_61,plain,
    ( ~ in(X0,X1)
    | in(X0,set_difference(X1,X2))
    | in(X0,X2) ),
    inference(cnf_transformation,[],[f91]) ).

cnf(c_63,plain,
    ( ~ in(X0,set_difference(X1,X2))
    | in(X0,X1) ),
    inference(cnf_transformation,[],[f93]) ).

cnf(c_75,negated_conjecture,
    set_union2(sK5,set_difference(sK6,sK5)) != sK6,
    inference(cnf_transformation,[],[f83]) ).

cnf(c_76,negated_conjecture,
    subset(sK5,sK6),
    inference(cnf_transformation,[],[f82]) ).

cnf(c_346,plain,
    ( X0 != sK5
    | X1 != sK6
    | ~ in(X2,X0)
    | in(X2,X1) ),
    inference(resolution_lifted,[status(thm)],[c_57,c_76]) ).

cnf(c_347,plain,
    ( ~ in(X0,sK5)
    | in(X0,sK6) ),
    inference(unflattening,[status(thm)],[c_346]) ).

cnf(c_1244,plain,
    ( ~ in(sK0(sK5,set_difference(sK6,sK5),sK6),set_difference(sK6,sK5))
    | ~ in(sK0(sK5,set_difference(sK6,sK5),sK6),sK6)
    | set_union2(sK5,set_difference(sK6,sK5)) = sK6 ),
    inference(instantiation,[status(thm)],[c_51]) ).

cnf(c_1255,plain,
    ( ~ in(sK0(sK5,set_difference(sK6,sK5),sK6),sK6)
    | ~ in(sK0(sK5,set_difference(sK6,sK5),sK6),sK5)
    | set_union2(sK5,set_difference(sK6,sK5)) = sK6 ),
    inference(instantiation,[status(thm)],[c_52]) ).

cnf(c_1310,plain,
    ( set_union2(sK5,set_difference(sK6,sK5)) = sK6
    | in(sK0(sK5,set_difference(sK6,sK5),sK6),set_difference(sK6,sK5))
    | in(sK0(sK5,set_difference(sK6,sK5),sK6),sK6)
    | in(sK0(sK5,set_difference(sK6,sK5),sK6),sK5) ),
    inference(instantiation,[status(thm)],[c_53]) ).

cnf(c_1471,plain,
    ( ~ in(sK0(sK5,set_difference(sK6,sK5),sK6),set_difference(sK6,sK5))
    | in(sK0(sK5,set_difference(sK6,sK5),sK6),sK6) ),
    inference(instantiation,[status(thm)],[c_63]) ).

cnf(c_1897,plain,
    ( ~ in(sK0(sK5,set_difference(sK6,sK5),sK6),sK6)
    | in(sK0(sK5,set_difference(sK6,sK5),sK6),set_difference(sK6,X0))
    | in(sK0(sK5,set_difference(sK6,sK5),sK6),X0) ),
    inference(instantiation,[status(thm)],[c_61]) ).

cnf(c_3158,plain,
    ( ~ in(sK0(sK5,set_difference(sK6,sK5),sK6),sK5)
    | in(sK0(sK5,set_difference(sK6,sK5),sK6),sK6) ),
    inference(instantiation,[status(thm)],[c_347]) ).

cnf(c_8823,plain,
    ( ~ in(sK0(sK5,set_difference(sK6,sK5),sK6),sK6)
    | in(sK0(sK5,set_difference(sK6,sK5),sK6),set_difference(sK6,sK5))
    | in(sK0(sK5,set_difference(sK6,sK5),sK6),sK5) ),
    inference(instantiation,[status(thm)],[c_1897]) ).

cnf(c_11387,plain,
    $false,
    inference(prop_impl_just,[status(thm)],[c_8823,c_3158,c_1471,c_1310,c_1255,c_1244,c_75]) ).


%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.12/0.13  % Problem  : SEU137+1 : TPTP v8.1.2. Released v3.3.0.
% 0.12/0.14  % Command  : run_iprover %s %d THM
% 0.14/0.35  % Computer : n031.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 : Wed Aug 23 19:33:35 EDT 2023
% 0.14/0.35  % CPUTime  : 
% 0.22/0.48  Running first-order theorem proving
% 0.22/0.48  Running: /export/starexec/sandbox/solver/bin/run_problem --schedule fof_schedule --no_cores 8 /export/starexec/sandbox/benchmark/theBenchmark.p 300
% 3.27/1.18  % SZS status Started for theBenchmark.p
% 3.27/1.18  % SZS status Theorem for theBenchmark.p
% 3.27/1.18  
% 3.27/1.18  %---------------- iProver v3.8 (pre SMT-COMP 2023/CASC 2023) ----------------%
% 3.27/1.18  
% 3.27/1.18  ------  iProver source info
% 3.27/1.18  
% 3.27/1.18  git: date: 2023-05-31 18:12:56 +0000
% 3.27/1.18  git: sha1: 8abddc1f627fd3ce0bcb8b4cbf113b3cc443d7b6
% 3.27/1.18  git: non_committed_changes: false
% 3.27/1.18  git: last_make_outside_of_git: false
% 3.27/1.18  
% 3.27/1.18  ------ Parsing...
% 3.27/1.18  ------ Clausification by vclausify_rel  & Parsing by iProver...
% 3.27/1.18  
% 3.27/1.18  ------ Preprocessing... sup_sim: 0  sf_s  rm: 1 0s  sf_e  pe_s  pe:1:0s pe_e  sup_sim: 0  sf_s  rm: 2 0s  sf_e  pe_s  pe_e 
% 3.27/1.18  
% 3.27/1.18  ------ Preprocessing... gs_s  sp: 0 0s  gs_e  snvd_s sp: 0 0s snvd_e 
% 3.27/1.18  
% 3.27/1.18  ------ Preprocessing... sf_s  rm: 1 0s  sf_e  sf_s  rm: 0 0s  sf_e 
% 3.27/1.18  ------ Proving...
% 3.27/1.18  ------ Problem Properties 
% 3.27/1.18  
% 3.27/1.18  
% 3.27/1.18  clauses                                 30
% 3.27/1.18  conjectures                             1
% 3.27/1.18  EPR                                     8
% 3.27/1.18  Horn                                    23
% 3.27/1.18  unary                                   9
% 3.27/1.18  binary                                  10
% 3.27/1.18  lits                                    64
% 3.27/1.18  lits eq                                 16
% 3.27/1.18  fd_pure                                 0
% 3.27/1.18  fd_pseudo                               0
% 3.27/1.18  fd_cond                                 1
% 3.27/1.18  fd_pseudo_cond                          9
% 3.27/1.18  AC symbols                              0
% 3.27/1.18  
% 3.27/1.18  ------ Schedule dynamic 5 is on 
% 3.27/1.18  
% 3.27/1.18  ------ Input Options "--resolution_flag false --inst_lit_sel_side none" Time Limit: 10.
% 3.27/1.18  
% 3.27/1.18  
% 3.27/1.18  ------ 
% 3.27/1.18  Current options:
% 3.27/1.18  ------ 
% 3.27/1.18  
% 3.27/1.18  
% 3.27/1.18  
% 3.27/1.18  
% 3.27/1.18  ------ Proving...
% 3.27/1.18  
% 3.27/1.18  
% 3.27/1.18  % SZS status Theorem for theBenchmark.p
% 3.27/1.18  
% 3.27/1.18  % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 3.27/1.18  
% 3.27/1.18  
%------------------------------------------------------------------------------