TSTP Solution File: SEU132+2 by iProver---3.9

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : iProver---3.9
% Problem  : SEU132+2 : TPTP v8.1.2. Released v3.3.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run_iprover %s %d THM

% Computer : n014.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 03:04:36 EDT 2024

% Result   : Theorem 24.74s 4.20s
% Output   : CNFRefutation 24.74s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    9
%            Number of leaves      :    6
% Syntax   : Number of formulae    :   44 (   5 unt;   0 def)
%            Number of atoms       :  172 (  12 equ)
%            Maximal formula atoms :   14 (   3 avg)
%            Number of connectives :  212 (  84   ~;  81   |;  37   &)
%                                         (   4 <=>;   6  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   11 (   5 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :    4 (   2 usr;   1 prp; 0-2 aty)
%            Number of functors    :    6 (   6 usr;   3 con; 0-3 aty)
%            Number of variables   :  104 (   2 sgn  74   !;  13   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f7,axiom,
    ! [X0,X1] :
      ( subset(X0,X1)
    <=> ! [X2] :
          ( in(X2,X0)
         => in(X2,X1) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d3_tarski) ).

fof(f9,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(f35,conjecture,
    ! [X0,X1,X2] :
      ( subset(X0,X1)
     => subset(set_difference(X0,X2),set_difference(X1,X2)) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t33_xboole_1) ).

fof(f36,negated_conjecture,
    ~ ! [X0,X1,X2] :
        ( subset(X0,X1)
       => subset(set_difference(X0,X2),set_difference(X1,X2)) ),
    inference(negated_conjecture,[],[f35]) ).

fof(f53,plain,
    ! [X0,X1] :
      ( subset(X0,X1)
    <=> ! [X2] :
          ( in(X2,X1)
          | ~ in(X2,X0) ) ),
    inference(ennf_transformation,[],[f7]) ).

fof(f65,plain,
    ? [X0,X1,X2] :
      ( ~ subset(set_difference(X0,X2),set_difference(X1,X2))
      & subset(X0,X1) ),
    inference(ennf_transformation,[],[f36]) ).

fof(f85,plain,
    ! [X0,X1] :
      ( ( subset(X0,X1)
        | ? [X2] :
            ( ~ in(X2,X1)
            & in(X2,X0) ) )
      & ( ! [X2] :
            ( in(X2,X1)
            | ~ in(X2,X0) )
        | ~ subset(X0,X1) ) ),
    inference(nnf_transformation,[],[f53]) ).

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

fof(f87,plain,
    ! [X0,X1] :
      ( ? [X2] :
          ( ~ in(X2,X1)
          & in(X2,X0) )
     => ( ~ in(sK2(X0,X1),X1)
        & in(sK2(X0,X1),X0) ) ),
    introduced(choice_axiom,[]) ).

fof(f88,plain,
    ! [X0,X1] :
      ( ( subset(X0,X1)
        | ( ~ in(sK2(X0,X1),X1)
          & in(sK2(X0,X1),X0) ) )
      & ( ! [X3] :
            ( in(X3,X1)
            | ~ in(X3,X0) )
        | ~ subset(X0,X1) ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK2])],[f86,f87]) ).

fof(f94,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,[],[f9]) ).

fof(f95,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,[],[f94]) ).

fof(f96,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,[],[f95]) ).

fof(f97,plain,
    ! [X0,X1,X2] :
      ( ? [X3] :
          ( ( in(X3,X1)
            | ~ in(X3,X0)
            | ~ in(X3,X2) )
          & ( ( ~ in(X3,X1)
              & in(X3,X0) )
            | in(X3,X2) ) )
     => ( ( in(sK4(X0,X1,X2),X1)
          | ~ in(sK4(X0,X1,X2),X0)
          | ~ in(sK4(X0,X1,X2),X2) )
        & ( ( ~ in(sK4(X0,X1,X2),X1)
            & in(sK4(X0,X1,X2),X0) )
          | in(sK4(X0,X1,X2),X2) ) ) ),
    introduced(choice_axiom,[]) ).

fof(f98,plain,
    ! [X0,X1,X2] :
      ( ( set_difference(X0,X1) = X2
        | ( ( in(sK4(X0,X1,X2),X1)
            | ~ in(sK4(X0,X1,X2),X0)
            | ~ in(sK4(X0,X1,X2),X2) )
          & ( ( ~ in(sK4(X0,X1,X2),X1)
              & in(sK4(X0,X1,X2),X0) )
            | in(sK4(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,[sK4])],[f96,f97]) ).

fof(f108,plain,
    ( ? [X0,X1,X2] :
        ( ~ subset(set_difference(X0,X2),set_difference(X1,X2))
        & subset(X0,X1) )
   => ( ~ subset(set_difference(sK8,sK10),set_difference(sK9,sK10))
      & subset(sK8,sK9) ) ),
    introduced(choice_axiom,[]) ).

fof(f109,plain,
    ( ~ subset(set_difference(sK8,sK10),set_difference(sK9,sK10))
    & subset(sK8,sK9) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK8,sK9,sK10])],[f65,f108]) ).

fof(f128,plain,
    ! [X3,X0,X1] :
      ( in(X3,X1)
      | ~ in(X3,X0)
      | ~ subset(X0,X1) ),
    inference(cnf_transformation,[],[f88]) ).

fof(f129,plain,
    ! [X0,X1] :
      ( subset(X0,X1)
      | in(sK2(X0,X1),X0) ),
    inference(cnf_transformation,[],[f88]) ).

fof(f130,plain,
    ! [X0,X1] :
      ( subset(X0,X1)
      | ~ in(sK2(X0,X1),X1) ),
    inference(cnf_transformation,[],[f88]) ).

fof(f137,plain,
    ! [X2,X0,X1,X4] :
      ( in(X4,X0)
      | ~ in(X4,X2)
      | set_difference(X0,X1) != X2 ),
    inference(cnf_transformation,[],[f98]) ).

fof(f138,plain,
    ! [X2,X0,X1,X4] :
      ( ~ in(X4,X1)
      | ~ in(X4,X2)
      | set_difference(X0,X1) != X2 ),
    inference(cnf_transformation,[],[f98]) ).

fof(f139,plain,
    ! [X2,X0,X1,X4] :
      ( in(X4,X2)
      | in(X4,X1)
      | ~ in(X4,X0)
      | set_difference(X0,X1) != X2 ),
    inference(cnf_transformation,[],[f98]) ).

fof(f167,plain,
    subset(sK8,sK9),
    inference(cnf_transformation,[],[f109]) ).

fof(f168,plain,
    ~ subset(set_difference(sK8,sK10),set_difference(sK9,sK10)),
    inference(cnf_transformation,[],[f109]) ).

fof(f191,plain,
    ! [X0,X1,X4] :
      ( in(X4,set_difference(X0,X1))
      | in(X4,X1)
      | ~ in(X4,X0) ),
    inference(equality_resolution,[],[f139]) ).

fof(f192,plain,
    ! [X0,X1,X4] :
      ( ~ in(X4,X1)
      | ~ in(X4,set_difference(X0,X1)) ),
    inference(equality_resolution,[],[f138]) ).

fof(f193,plain,
    ! [X0,X1,X4] :
      ( in(X4,X0)
      | ~ in(X4,set_difference(X0,X1)) ),
    inference(equality_resolution,[],[f137]) ).

cnf(c_63,plain,
    ( ~ in(sK2(X0,X1),X1)
    | subset(X0,X1) ),
    inference(cnf_transformation,[],[f130]) ).

cnf(c_64,plain,
    ( in(sK2(X0,X1),X0)
    | subset(X0,X1) ),
    inference(cnf_transformation,[],[f129]) ).

cnf(c_65,plain,
    ( ~ in(X0,X1)
    | ~ subset(X1,X2)
    | in(X0,X2) ),
    inference(cnf_transformation,[],[f128]) ).

cnf(c_75,plain,
    ( ~ in(X0,X1)
    | in(X0,set_difference(X1,X2))
    | in(X0,X2) ),
    inference(cnf_transformation,[],[f191]) ).

cnf(c_76,plain,
    ( ~ in(X0,set_difference(X1,X2))
    | ~ in(X0,X2) ),
    inference(cnf_transformation,[],[f192]) ).

cnf(c_77,plain,
    ( ~ in(X0,set_difference(X1,X2))
    | in(X0,X1) ),
    inference(cnf_transformation,[],[f193]) ).

cnf(c_102,negated_conjecture,
    ~ subset(set_difference(sK8,sK10),set_difference(sK9,sK10)),
    inference(cnf_transformation,[],[f168]) ).

cnf(c_103,negated_conjecture,
    subset(sK8,sK9),
    inference(cnf_transformation,[],[f167]) ).

cnf(c_1058,plain,
    ( ~ in(sK2(set_difference(sK8,sK10),set_difference(sK9,sK10)),set_difference(sK9,sK10))
    | subset(set_difference(sK8,sK10),set_difference(sK9,sK10)) ),
    inference(instantiation,[status(thm)],[c_63]) ).

cnf(c_1059,plain,
    ( in(sK2(set_difference(sK8,sK10),set_difference(sK9,sK10)),set_difference(sK8,sK10))
    | subset(set_difference(sK8,sK10),set_difference(sK9,sK10)) ),
    inference(instantiation,[status(thm)],[c_64]) ).

cnf(c_1075,plain,
    ( ~ in(sK2(set_difference(sK8,sK10),set_difference(sK9,sK10)),set_difference(sK8,sK10))
    | ~ in(sK2(set_difference(sK8,sK10),set_difference(sK9,sK10)),sK10) ),
    inference(instantiation,[status(thm)],[c_76]) ).

cnf(c_1088,plain,
    ( ~ in(sK2(set_difference(sK8,sK10),set_difference(sK9,sK10)),sK9)
    | in(sK2(set_difference(sK8,sK10),set_difference(sK9,sK10)),set_difference(sK9,sK10))
    | in(sK2(set_difference(sK8,sK10),set_difference(sK9,sK10)),sK10) ),
    inference(instantiation,[status(thm)],[c_75]) ).

cnf(c_1247,plain,
    ( ~ in(sK2(set_difference(sK8,sK10),set_difference(sK9,sK10)),X0)
    | ~ subset(X0,sK9)
    | in(sK2(set_difference(sK8,sK10),set_difference(sK9,sK10)),sK9) ),
    inference(instantiation,[status(thm)],[c_65]) ).

cnf(c_6134,plain,
    ( ~ in(sK2(set_difference(sK8,sK10),set_difference(sK9,sK10)),set_difference(sK8,sK10))
    | in(sK2(set_difference(sK8,sK10),set_difference(sK9,sK10)),sK8) ),
    inference(instantiation,[status(thm)],[c_77]) ).

cnf(c_33781,plain,
    ( ~ in(sK2(set_difference(sK8,sK10),set_difference(sK9,sK10)),sK8)
    | ~ subset(sK8,sK9)
    | in(sK2(set_difference(sK8,sK10),set_difference(sK9,sK10)),sK9) ),
    inference(instantiation,[status(thm)],[c_1247]) ).

cnf(c_33786,plain,
    $false,
    inference(prop_impl_just,[status(thm)],[c_33781,c_6134,c_1088,c_1075,c_1058,c_1059,c_102,c_103]) ).


%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.12/0.13  % Problem  : SEU132+2 : TPTP v8.1.2. Released v3.3.0.
% 0.12/0.13  % Command  : run_iprover %s %d THM
% 0.14/0.34  % Computer : n014.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 : Thu May  2 17:21:17 EDT 2024
% 0.14/0.34  % CPUTime  : 
% 0.20/0.47  Running first-order theorem proving
% 0.20/0.47  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
% 24.74/4.20  % SZS status Started for theBenchmark.p
% 24.74/4.20  % SZS status Theorem for theBenchmark.p
% 24.74/4.20  
% 24.74/4.20  %---------------- iProver v3.9 (pre CASC 2024/SMT-COMP 2024) ----------------%
% 24.74/4.20  
% 24.74/4.20  ------  iProver source info
% 24.74/4.20  
% 24.74/4.20  git: date: 2024-05-02 19:28:25 +0000
% 24.74/4.20  git: sha1: a33b5eb135c74074ba803943bb12f2ebd971352f
% 24.74/4.20  git: non_committed_changes: false
% 24.74/4.20  
% 24.74/4.20  ------ Parsing...
% 24.74/4.20  ------ Clausification by vclausify_rel  & Parsing by iProver...
% 24.74/4.20  
% 24.74/4.20  ------ Preprocessing... sf_s  rm: 1 0s  sf_e  pe_s  pe_e  sf_s  rm: 1 0s  sf_e  pe_s  pe_e 
% 24.74/4.20  
% 24.74/4.20  ------ Preprocessing... gs_s  sp: 0 0s  gs_e  scvd_s sp: 0 0s scvd_e  snvd_s sp: 0 0s snvd_e 
% 24.74/4.20  
% 24.74/4.20  ------ Preprocessing... sf_s  rm: 1 0s  sf_e  sf_s  rm: 0 0s  sf_e 
% 24.74/4.20  ------ Proving...
% 24.74/4.20  ------ Problem Properties 
% 24.74/4.20  
% 24.74/4.20  
% 24.74/4.20  clauses                                 66
% 24.74/4.20  conjectures                             2
% 24.74/4.20  EPR                                     17
% 24.74/4.20  Horn                                    52
% 24.74/4.20  unary                                   18
% 24.74/4.20  binary                                  27
% 24.74/4.20  lits                                    138
% 24.74/4.20  lits eq                                 30
% 24.74/4.20  fd_pure                                 0
% 24.74/4.20  fd_pseudo                               0
% 24.74/4.20  fd_cond                                 3
% 24.74/4.20  fd_pseudo_cond                          13
% 24.74/4.20  AC symbols                              0
% 24.74/4.20  
% 24.74/4.20  ------ Input Options Time Limit: Unbounded
% 24.74/4.20  
% 24.74/4.20  
% 24.74/4.20  ------ 
% 24.74/4.20  Current options:
% 24.74/4.20  ------ 
% 24.74/4.20  
% 24.74/4.20  
% 24.74/4.20  
% 24.74/4.20  
% 24.74/4.20  ------ Proving...
% 24.74/4.20  
% 24.74/4.20  
% 24.74/4.20  % SZS status Theorem for theBenchmark.p
% 24.74/4.20  
% 24.74/4.20  % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 24.74/4.20  
% 24.74/4.20  
%------------------------------------------------------------------------------