TSTP Solution File: SEU124+2 by iProver---3.8

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : iProver---3.8
% Problem  : SEU124+2 : TPTP v8.1.2. Released v3.3.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run_iprover %s %d THM

% Computer : n023.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 17:03:51 EDT 2023

% Result   : Theorem 0.48s 1.17s
% Output   : CNFRefutation 0.48s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   10
%            Number of leaves      :    6
% Syntax   : Number of formulae    :   31 (   7 unt;   0 def)
%            Number of atoms       :  132 (  10 equ)
%            Maximal formula atoms :   14 (   4 avg)
%            Number of connectives :  163 (  62   ~;  61   |;  32   &)
%                                         (   4 <=>;   4  =>;   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    :    5 (   5 usr;   2 con; 0-3 aty)
%            Number of variables   :   74 (   2 sgn;  55   !;  11   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f6,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(f7,axiom,
    ! [X0,X1] :
      ( subset(X0,X1)
    <=> ! [X2] :
          ( in(X2,X0)
         => in(X2,X1) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d3_tarski) ).

fof(f30,conjecture,
    ! [X0,X1] : subset(X0,set_union2(X0,X1)),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t7_xboole_1) ).

fof(f31,negated_conjecture,
    ~ ! [X0,X1] : subset(X0,set_union2(X0,X1)),
    inference(negated_conjecture,[],[f30]) ).

fof(f39,plain,
    ! [X0,X1] :
      ( subset(X0,X1)
    <=> ! [X2] :
          ( in(X2,X1)
          | ~ in(X2,X0) ) ),
    inference(ennf_transformation,[],[f7]) ).

fof(f50,plain,
    ? [X0,X1] : ~ subset(X0,set_union2(X0,X1)),
    inference(ennf_transformation,[],[f31]) ).

fof(f58,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,[],[f6]) ).

fof(f59,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,[],[f58]) ).

fof(f60,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,[],[f59]) ).

fof(f61,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(f62,plain,
    ! [X0,X1,X2] :
      ( ( set_union2(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_union2(X0,X1) != X2 ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK1])],[f60,f61]) ).

fof(f63,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,[],[f39]) ).

fof(f64,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,[],[f63]) ).

fof(f65,plain,
    ! [X0,X1] :
      ( ? [X2] :
          ( ~ in(X2,X1)
          & in(X2,X0) )
     => ( ~ in(sK2(X0,X1),X1)
        & in(sK2(X0,X1),X0) ) ),
    introduced(choice_axiom,[]) ).

fof(f66,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])],[f64,f65]) ).

fof(f81,plain,
    ( ? [X0,X1] : ~ subset(X0,set_union2(X0,X1))
   => ~ subset(sK8,set_union2(sK8,sK9)) ),
    introduced(choice_axiom,[]) ).

fof(f82,plain,
    ~ subset(sK8,set_union2(sK8,sK9)),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK8,sK9])],[f50,f81]) ).

fof(f92,plain,
    ! [X2,X0,X1,X4] :
      ( in(X4,X2)
      | ~ in(X4,X0)
      | set_union2(X0,X1) != X2 ),
    inference(cnf_transformation,[],[f62]) ).

fof(f98,plain,
    ! [X0,X1] :
      ( subset(X0,X1)
      | in(sK2(X0,X1),X0) ),
    inference(cnf_transformation,[],[f66]) ).

fof(f99,plain,
    ! [X0,X1] :
      ( subset(X0,X1)
      | ~ in(sK2(X0,X1),X1) ),
    inference(cnf_transformation,[],[f66]) ).

fof(f128,plain,
    ~ subset(sK8,set_union2(sK8,sK9)),
    inference(cnf_transformation,[],[f82]) ).

fof(f134,plain,
    ! [X0,X1,X4] :
      ( in(X4,set_union2(X0,X1))
      | ~ in(X4,X0) ),
    inference(equality_resolution,[],[f92]) ).

cnf(c_61,plain,
    ( ~ in(X0,X1)
    | in(X0,set_union2(X1,X2)) ),
    inference(cnf_transformation,[],[f134]) ).

cnf(c_63,plain,
    ( ~ in(sK2(X0,X1),X1)
    | subset(X0,X1) ),
    inference(cnf_transformation,[],[f99]) ).

cnf(c_64,plain,
    ( in(sK2(X0,X1),X0)
    | subset(X0,X1) ),
    inference(cnf_transformation,[],[f98]) ).

cnf(c_94,negated_conjecture,
    ~ subset(sK8,set_union2(sK8,sK9)),
    inference(cnf_transformation,[],[f128]) ).

cnf(c_2173,plain,
    ( ~ in(sK2(sK8,set_union2(sK8,sK9)),set_union2(sK8,sK9))
    | subset(sK8,set_union2(sK8,sK9)) ),
    inference(instantiation,[status(thm)],[c_63]) ).

cnf(c_2174,plain,
    ( in(sK2(sK8,set_union2(sK8,sK9)),sK8)
    | subset(sK8,set_union2(sK8,sK9)) ),
    inference(instantiation,[status(thm)],[c_64]) ).

cnf(c_2344,plain,
    ( ~ in(sK2(sK8,set_union2(sK8,sK9)),sK8)
    | in(sK2(sK8,set_union2(sK8,sK9)),set_union2(sK8,X0)) ),
    inference(instantiation,[status(thm)],[c_61]) ).

cnf(c_2962,plain,
    ( ~ in(sK2(sK8,set_union2(sK8,sK9)),sK8)
    | in(sK2(sK8,set_union2(sK8,sK9)),set_union2(sK8,sK9)) ),
    inference(instantiation,[status(thm)],[c_2344]) ).

cnf(c_2963,plain,
    $false,
    inference(prop_impl_just,[status(thm)],[c_2962,c_2174,c_2173,c_94]) ).


%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.11/0.12  % Problem  : SEU124+2 : TPTP v8.1.2. Released v3.3.0.
% 0.11/0.13  % Command  : run_iprover %s %d THM
% 0.14/0.34  % Computer : n023.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 Aug 24 00:13:27 EDT 2023
% 0.14/0.35  % CPUTime  : 
% 0.21/0.47  Running first-order theorem proving
% 0.21/0.47  Running: /export/starexec/sandbox/solver/bin/run_problem --schedule fof_schedule --no_cores 8 /export/starexec/sandbox/benchmark/theBenchmark.p 300
% 0.48/1.17  % SZS status Started for theBenchmark.p
% 0.48/1.17  % SZS status Theorem for theBenchmark.p
% 0.48/1.17  
% 0.48/1.17  %---------------- iProver v3.8 (pre SMT-COMP 2023/CASC 2023) ----------------%
% 0.48/1.17  
% 0.48/1.17  ------  iProver source info
% 0.48/1.17  
% 0.48/1.17  git: date: 2023-05-31 18:12:56 +0000
% 0.48/1.17  git: sha1: 8abddc1f627fd3ce0bcb8b4cbf113b3cc443d7b6
% 0.48/1.17  git: non_committed_changes: false
% 0.48/1.17  git: last_make_outside_of_git: false
% 0.48/1.17  
% 0.48/1.17  ------ Parsing...
% 0.48/1.17  ------ Clausification by vclausify_rel  & Parsing by iProver...
% 0.48/1.17  
% 0.48/1.17  ------ Preprocessing... sup_sim: 0  sf_s  rm: 1 0s  sf_e  pe_s  pe_e  sup_sim: 0  sf_s  rm: 1 0s  sf_e  pe_s  pe_e 
% 0.48/1.17  
% 0.48/1.17  ------ Preprocessing... gs_s  sp: 0 0s  gs_e  snvd_s sp: 0 0s snvd_e 
% 0.48/1.17  
% 0.48/1.17  ------ Preprocessing... sf_s  rm: 1 0s  sf_e  sf_s  rm: 0 0s  sf_e 
% 0.48/1.17  ------ Proving...
% 0.48/1.17  ------ Problem Properties 
% 0.48/1.17  
% 0.48/1.17  
% 0.48/1.17  clauses                                 45
% 0.48/1.17  conjectures                             1
% 0.48/1.17  EPR                                     16
% 0.48/1.17  Horn                                    36
% 0.48/1.17  unary                                   12
% 0.48/1.17  binary                                  20
% 0.48/1.17  lits                                    93
% 0.48/1.17  lits eq                                 18
% 0.48/1.17  fd_pure                                 0
% 0.48/1.17  fd_pseudo                               0
% 0.48/1.17  fd_cond                                 3
% 0.48/1.17  fd_pseudo_cond                          8
% 0.48/1.17  AC symbols                              0
% 0.48/1.17  
% 0.48/1.17  ------ Schedule dynamic 5 is on 
% 0.48/1.17  
% 0.48/1.17  ------ Input Options "--resolution_flag false --inst_lit_sel_side none" Time Limit: 10.
% 0.48/1.17  
% 0.48/1.17  
% 0.48/1.17  ------ 
% 0.48/1.17  Current options:
% 0.48/1.17  ------ 
% 0.48/1.17  
% 0.48/1.17  
% 0.48/1.17  
% 0.48/1.17  
% 0.48/1.17  ------ Proving...
% 0.48/1.17  
% 0.48/1.17  
% 0.48/1.17  % SZS status Theorem for theBenchmark.p
% 0.48/1.17  
% 0.48/1.17  % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 0.48/1.17  
% 0.48/1.17  
%------------------------------------------------------------------------------