TSTP Solution File: SWW672_2 by Vampire-SAT---4.8

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Vampire-SAT---4.8
% Problem  : SWW672_2 : TPTP v8.2.0. Released v6.1.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : vampire --mode casc_sat -m 16384 --cores 7 -t %d %s

% Computer : n003.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 : Tue May 21 07:27:54 EDT 2024

% Result   : Theorem 9.95s 1.79s
% Output   : Refutation 9.95s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   16
%            Number of leaves      :  100
% Syntax   : Number of formulae    :  143 (  14 unt;  85 typ;   0 def)
%            Number of atoms       :  631 ( 214 equ)
%            Maximal formula atoms :   60 (  10 avg)
%            Number of connectives :  773 ( 200   ~; 119   |; 352   &)
%                                         (  17 <=>;  85  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   31 (  11 avg)
%            Maximal term depth    :    4 (   1 avg)
%            Number arithmetic     :  110 (  12 atm;  26 fun;  38 num;  34 var)
%            Number of types       :    8 (   6 usr;   1 ari)
%            Number of type conns  :  137 (  54   >;  83   *;   0   +;   0  <<)
%            Number of predicates  :   25 (  21 usr;   1 prp; 0-6 aty)
%            Number of functors    :   61 (  58 usr;  27 con; 0-4 aty)
%            Number of variables   :  389 ( 205   !; 184   ?; 386   :)

% Comments : 
%------------------------------------------------------------------------------
tff(type_def_5,type,
    uni: $tType ).

tff(type_def_6,type,
    ty: $tType ).

tff(type_def_7,type,
    bool1: $tType ).

tff(type_def_8,type,
    tuple02: $tType ).

tff(type_def_9,type,
    vertex1: $tType ).

tff(type_def_10,type,
    set_vertex: $tType ).

tff(func_def_0,type,
    witness1: ty > uni ).

tff(func_def_1,type,
    int: ty ).

tff(func_def_2,type,
    real: ty ).

tff(func_def_3,type,
    bool: ty ).

tff(func_def_4,type,
    true1: bool1 ).

tff(func_def_5,type,
    false1: bool1 ).

tff(func_def_6,type,
    match_bool1: ( ty * bool1 * uni * uni ) > uni ).

tff(func_def_7,type,
    tuple0: ty ).

tff(func_def_8,type,
    tuple03: tuple02 ).

tff(func_def_9,type,
    qtmark: ty ).

tff(func_def_12,type,
    set: ty > ty ).

tff(func_def_13,type,
    empty: ty > uni ).

tff(func_def_14,type,
    add: ( ty * uni * uni ) > uni ).

tff(func_def_15,type,
    remove: ( ty * uni * uni ) > uni ).

tff(func_def_16,type,
    union: ( ty * uni * uni ) > uni ).

tff(func_def_17,type,
    inter: ( ty * uni * uni ) > uni ).

tff(func_def_18,type,
    diff: ( ty * uni * uni ) > uni ).

tff(func_def_19,type,
    choose: ( ty * uni ) > uni ).

tff(func_def_20,type,
    cardinal1: ( ty * uni ) > $int ).

tff(func_def_23,type,
    vertex: ty ).

tff(func_def_24,type,
    succ1: vertex1 > set_vertex ).

tff(func_def_25,type,
    t2tb: set_vertex > uni ).

tff(func_def_26,type,
    tb2t: uni > set_vertex ).

tff(func_def_27,type,
    t2tb1: vertex1 > uni ).

tff(func_def_28,type,
    tb2t1: uni > vertex1 ).

tff(func_def_29,type,
    ref: ty > ty ).

tff(func_def_30,type,
    mk_ref: ( ty * uni ) > uni ).

tff(func_def_31,type,
    contents: ( ty * uni ) > uni ).

tff(func_def_33,type,
    sK3: vertex1 ).

tff(func_def_34,type,
    sK4: vertex1 ).

tff(func_def_35,type,
    sK5: $int ).

tff(func_def_36,type,
    sK6: set_vertex ).

tff(func_def_37,type,
    sK7: set_vertex ).

tff(func_def_38,type,
    sK8: set_vertex ).

tff(func_def_39,type,
    sK9: bool1 ).

tff(func_def_40,type,
    sK10: set_vertex ).

tff(func_def_41,type,
    sK11: vertex1 ).

tff(func_def_42,type,
    sK12: set_vertex ).

tff(func_def_43,type,
    sK13: set_vertex ).

tff(func_def_44,type,
    sK14: bool1 ).

tff(func_def_45,type,
    sK15: set_vertex ).

tff(func_def_46,type,
    sK16: set_vertex ).

tff(func_def_47,type,
    sK17: $int ).

tff(func_def_48,type,
    sK18: vertex1 ).

tff(func_def_49,type,
    sK19: set_vertex > vertex1 ).

tff(func_def_50,type,
    sK20: set_vertex > vertex1 ).

tff(func_def_51,type,
    sK21: ( ty * uni ) > uni ).

tff(func_def_52,type,
    sK22: ( ty * uni * uni ) > uni ).

tff(func_def_53,type,
    sK23: ( ty * uni * uni ) > uni ).

tff(func_def_54,type,
    sK24: ( vertex1 * vertex1 * $int ) > vertex1 ).

tff(func_def_55,type,
    sK25: ( $int * vertex1 * vertex1 ) > vertex1 ).

tff(func_def_56,type,
    sK26: ( $int * vertex1 * vertex1 ) > vertex1 ).

tff(func_def_57,type,
    sK27: ( $int * vertex1 * vertex1 ) > vertex1 ).

tff(func_def_58,type,
    sK28: ( $int * vertex1 * vertex1 ) > $int ).

tff(func_def_59,type,
    sK29: ( vertex1 * vertex1 * $int ) > vertex1 ).

tff(func_def_60,type,
    sK30: ( vertex1 * vertex1 * $int ) > $int ).

tff(func_def_61,type,
    sK31: ( set_vertex * vertex1 ) > vertex1 ).

tff(func_def_62,type,
    sK32: ( $int * vertex1 * vertex1 ) > $int ).

tff(pred_def_1,type,
    sort1: ( ty * uni ) > $o ).

tff(pred_def_3,type,
    mem: ( ty * uni * uni ) > $o ).

tff(pred_def_4,type,
    infix_eqeq: ( ty * uni * uni ) > $o ).

tff(pred_def_5,type,
    subset: ( ty * uni * uni ) > $o ).

tff(pred_def_6,type,
    is_empty: ( ty * uni ) > $o ).

tff(pred_def_7,type,
    path1: ( vertex1 * vertex1 * $int ) > $o ).

tff(pred_def_8,type,
    shortest_path1: ( vertex1 * vertex1 * $int ) > $o ).

tff(pred_def_10,type,
    inv1: ( vertex1 * vertex1 * set_vertex * set_vertex * set_vertex * $int ) > $o ).

tff(pred_def_11,type,
    closure1: ( set_vertex * set_vertex * set_vertex * vertex1 ) > $o ).

tff(pred_def_12,type,
    sP0: ( $int * vertex1 * vertex1 ) > $o ).

tff(pred_def_13,type,
    sP1: ( $int * vertex1 * set_vertex ) > $o ).

tff(pred_def_14,type,
    sP2: ( set_vertex * vertex1 * set_vertex * set_vertex * $int * vertex1 ) > $o ).

tff(pred_def_15,type,
    sP33: ( vertex1 * vertex1 ) > $o ).

tff(pred_def_16,type,
    sP34: ( vertex1 * vertex1 ) > $o ).

tff(pred_def_17,type,
    sP35: ( vertex1 * vertex1 ) > $o ).

tff(pred_def_18,type,
    sP36: ( vertex1 * set_vertex ) > $o ).

tff(pred_def_19,type,
    sP37: ( vertex1 * $int * set_vertex * set_vertex ) > $o ).

tff(pred_def_20,type,
    sP38: ( vertex1 * $int * vertex1 ) > $o ).

tff(pred_def_21,type,
    sP39: ( $int * set_vertex * vertex1 ) > $o ).

tff(pred_def_22,type,
    sP40: ( vertex1 * $int * set_vertex ) > $o ).

tff(pred_def_23,type,
    sP41: ( $int * vertex1 * set_vertex ) > $o ).

tff(f53803,plain,
    $false,
    inference(subsumption_resolution,[],[f53773,f26755]) ).

tff(f26755,plain,
    mem(vertex,t2tb1(sK31(sK13,sK18)),t2tb(succ1(sK18))),
    inference(unit_resulting_resolution,[],[f267,f352]) ).

tff(f352,plain,
    ! [X2: set_vertex,X3: vertex1,X0: set_vertex,X1: set_vertex] :
      ( closure1(X0,X1,X2,X3)
      | mem(vertex,t2tb1(sK31(X0,X3)),t2tb(succ1(X3))) ),
    inference(cnf_transformation,[],[f231]) ).

tff(f231,plain,
    ! [X0: set_vertex,X1: set_vertex,X2: set_vertex,X3: vertex1] :
      ( ( closure1(X0,X1,X2,X3)
        | ( ~ mem(vertex,t2tb1(sK31(X0,X3)),t2tb(X0))
          & mem(vertex,t2tb1(sK31(X0,X3)),t2tb(succ1(X3)))
          & ~ mem(vertex,t2tb1(X3),t2tb(X2))
          & ~ mem(vertex,t2tb1(X3),t2tb(X1))
          & mem(vertex,t2tb1(X3),t2tb(X0)) ) )
      & ( ! [X5: vertex1] :
            ( mem(vertex,t2tb1(X5),t2tb(X0))
            | ~ mem(vertex,t2tb1(X5),t2tb(succ1(X3))) )
        | mem(vertex,t2tb1(X3),t2tb(X2))
        | mem(vertex,t2tb1(X3),t2tb(X1))
        | ~ mem(vertex,t2tb1(X3),t2tb(X0))
        | ~ closure1(X0,X1,X2,X3) ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK31])],[f229,f230]) ).

tff(f230,plain,
    ! [X0: set_vertex,X3: vertex1] :
      ( ? [X4: vertex1] :
          ( ~ mem(vertex,t2tb1(X4),t2tb(X0))
          & mem(vertex,t2tb1(X4),t2tb(succ1(X3))) )
     => ( ~ mem(vertex,t2tb1(sK31(X0,X3)),t2tb(X0))
        & mem(vertex,t2tb1(sK31(X0,X3)),t2tb(succ1(X3))) ) ),
    introduced(choice_axiom,[]) ).

tff(f229,plain,
    ! [X0: set_vertex,X1: set_vertex,X2: set_vertex,X3: vertex1] :
      ( ( closure1(X0,X1,X2,X3)
        | ( ? [X4: vertex1] :
              ( ~ mem(vertex,t2tb1(X4),t2tb(X0))
              & mem(vertex,t2tb1(X4),t2tb(succ1(X3))) )
          & ~ mem(vertex,t2tb1(X3),t2tb(X2))
          & ~ mem(vertex,t2tb1(X3),t2tb(X1))
          & mem(vertex,t2tb1(X3),t2tb(X0)) ) )
      & ( ! [X5: vertex1] :
            ( mem(vertex,t2tb1(X5),t2tb(X0))
            | ~ mem(vertex,t2tb1(X5),t2tb(succ1(X3))) )
        | mem(vertex,t2tb1(X3),t2tb(X2))
        | mem(vertex,t2tb1(X3),t2tb(X1))
        | ~ mem(vertex,t2tb1(X3),t2tb(X0))
        | ~ closure1(X0,X1,X2,X3) ) ),
    inference(rectify,[],[f228]) ).

tff(f228,plain,
    ! [X0: set_vertex,X1: set_vertex,X2: set_vertex,X3: vertex1] :
      ( ( closure1(X0,X1,X2,X3)
        | ( ? [X4: vertex1] :
              ( ~ mem(vertex,t2tb1(X4),t2tb(X0))
              & mem(vertex,t2tb1(X4),t2tb(succ1(X3))) )
          & ~ mem(vertex,t2tb1(X3),t2tb(X2))
          & ~ mem(vertex,t2tb1(X3),t2tb(X1))
          & mem(vertex,t2tb1(X3),t2tb(X0)) ) )
      & ( ! [X4: vertex1] :
            ( mem(vertex,t2tb1(X4),t2tb(X0))
            | ~ mem(vertex,t2tb1(X4),t2tb(succ1(X3))) )
        | mem(vertex,t2tb1(X3),t2tb(X2))
        | mem(vertex,t2tb1(X3),t2tb(X1))
        | ~ mem(vertex,t2tb1(X3),t2tb(X0))
        | ~ closure1(X0,X1,X2,X3) ) ),
    inference(flattening,[],[f227]) ).

tff(f227,plain,
    ! [X0: set_vertex,X1: set_vertex,X2: set_vertex,X3: vertex1] :
      ( ( closure1(X0,X1,X2,X3)
        | ( ? [X4: vertex1] :
              ( ~ mem(vertex,t2tb1(X4),t2tb(X0))
              & mem(vertex,t2tb1(X4),t2tb(succ1(X3))) )
          & ~ mem(vertex,t2tb1(X3),t2tb(X2))
          & ~ mem(vertex,t2tb1(X3),t2tb(X1))
          & mem(vertex,t2tb1(X3),t2tb(X0)) ) )
      & ( ! [X4: vertex1] :
            ( mem(vertex,t2tb1(X4),t2tb(X0))
            | ~ mem(vertex,t2tb1(X4),t2tb(succ1(X3))) )
        | mem(vertex,t2tb1(X3),t2tb(X2))
        | mem(vertex,t2tb1(X3),t2tb(X1))
        | ~ mem(vertex,t2tb1(X3),t2tb(X0))
        | ~ closure1(X0,X1,X2,X3) ) ),
    inference(nnf_transformation,[],[f175]) ).

tff(f175,plain,
    ! [X0: set_vertex,X1: set_vertex,X2: set_vertex,X3: vertex1] :
      ( closure1(X0,X1,X2,X3)
    <=> ( ! [X4: vertex1] :
            ( mem(vertex,t2tb1(X4),t2tb(X0))
            | ~ mem(vertex,t2tb1(X4),t2tb(succ1(X3))) )
        | mem(vertex,t2tb1(X3),t2tb(X2))
        | mem(vertex,t2tb1(X3),t2tb(X1))
        | ~ mem(vertex,t2tb1(X3),t2tb(X0)) ) ),
    inference(flattening,[],[f174]) ).

tff(f174,plain,
    ! [X0: set_vertex,X1: set_vertex,X2: set_vertex,X3: vertex1] :
      ( closure1(X0,X1,X2,X3)
    <=> ( ! [X4: vertex1] :
            ( mem(vertex,t2tb1(X4),t2tb(X0))
            | ~ mem(vertex,t2tb1(X4),t2tb(succ1(X3))) )
        | mem(vertex,t2tb1(X3),t2tb(X2))
        | mem(vertex,t2tb1(X3),t2tb(X1))
        | ~ mem(vertex,t2tb1(X3),t2tb(X0)) ) ),
    inference(ennf_transformation,[],[f128]) ).

tff(f128,plain,
    ! [X0: set_vertex,X1: set_vertex,X2: set_vertex,X3: vertex1] :
      ( closure1(X0,X1,X2,X3)
    <=> ( mem(vertex,t2tb1(X3),t2tb(X0))
       => ( ~ mem(vertex,t2tb1(X3),t2tb(X1))
         => ( ~ mem(vertex,t2tb1(X3),t2tb(X2))
           => ! [X4: vertex1] :
                ( mem(vertex,t2tb1(X4),t2tb(succ1(X3)))
               => mem(vertex,t2tb1(X4),t2tb(X0)) ) ) ) ) ),
    inference(rectify,[],[f58]) ).

tff(f58,axiom,
    ! [X22: set_vertex,X23: set_vertex,X24: set_vertex,X1: vertex1] :
      ( closure1(X22,X23,X24,X1)
    <=> ( mem(vertex,t2tb1(X1),t2tb(X22))
       => ( ~ mem(vertex,t2tb1(X1),t2tb(X23))
         => ( ~ mem(vertex,t2tb1(X1),t2tb(X24))
           => ! [X7: vertex1] :
                ( mem(vertex,t2tb1(X7),t2tb(succ1(X1)))
               => mem(vertex,t2tb1(X7),t2tb(X22)) ) ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',closure_def) ).

tff(f267,plain,
    ~ closure1(sK13,sK15,sK16,sK18),
    inference(cnf_transformation,[],[f195]) ).

tff(f195,plain,
    ( ~ closure1(sK13,sK15,sK16,sK18)
    & ( $sum(sK5,1) = sK17 )
    & ( tb2t(empty(vertex)) = sK16 )
    & ( sK12 = sK15 )
    & ( true1 = sK14 )
    & ( ( true1 = sK14 )
      | ~ is_empty(vertex,t2tb(sK10)) )
    & ( is_empty(vertex,t2tb(sK10))
      | ( true1 != sK14 ) )
    & ! [X16: vertex1] : closure1(sK13,sK10,sK12,X16)
    & subset(vertex,t2tb(succ1(sK11)),t2tb(sK13))
    & inv1(sK3,sK4,sK13,sK10,sK12,sK5)
    & ! [X17: vertex1] :
        ( closure1(sK8,sK10,sK6,X17)
        | ( sK11 = X17 ) )
    & shortest_path1(sK3,sK11,sK5)
    & inv1(sK3,sK4,sK8,sK10,sK6,sK5)
    & ( sK4 != sK11 )
    & ( sK10 = tb2t(remove(vertex,t2tb1(sK11),t2tb(sK7))) )
    & mem(vertex,t2tb1(sK11),t2tb(sK7))
    & ~ is_empty(vertex,t2tb(sK7))
    & ( true1 != sK9 )
    & ( ( true1 = sK9 )
      | ~ is_empty(vertex,t2tb(sK7)) )
    & ( is_empty(vertex,t2tb(sK7))
      | ( true1 != sK9 ) )
    & ~ $less(sK5,0)
    & ! [X18: vertex1] : closure1(sK8,sK7,sK6,X18)
    & ( is_empty(vertex,t2tb(sK6))
      | ~ is_empty(vertex,t2tb(sK7)) )
    & inv1(sK3,sK4,sK8,sK7,sK6,sK5) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK3,sK4,sK5,sK6,sK7,sK8,sK9,sK10,sK11,sK12,sK13,sK14,sK15,sK16,sK17,sK18])],[f185,f194,f193,f192,f191,f190,f189,f188,f187,f186]) ).

tff(f186,plain,
    ( ? [X0: vertex1,X1: vertex1,X2: $int,X3: set_vertex,X4: set_vertex,X5: set_vertex] :
        ( ? [X6: bool1] :
            ( ? [X7: set_vertex,X8: vertex1] :
                ( ? [X9: set_vertex,X10: set_vertex] :
                    ( ? [X11: bool1] :
                        ( ? [X12: set_vertex] :
                            ( ? [X13: set_vertex] :
                                ( ? [X14: $int] :
                                    ( ? [X15: vertex1] : ~ closure1(X10,X12,X13,X15)
                                    & ( $sum(X2,1) = X14 ) )
                                & ( tb2t(empty(vertex)) = X13 ) )
                            & ( X9 = X12 ) )
                        & ( true1 = X11 )
                        & ( ( true1 = X11 )
                          | ~ is_empty(vertex,t2tb(X7)) )
                        & ( is_empty(vertex,t2tb(X7))
                          | ( true1 != X11 ) ) )
                    & ! [X16: vertex1] : closure1(X10,X7,X9,X16)
                    & subset(vertex,t2tb(succ1(X8)),t2tb(X10))
                    & inv1(X0,X1,X10,X7,X9,X2) )
                & ! [X17: vertex1] :
                    ( closure1(X5,X7,X3,X17)
                    | ( X8 = X17 ) )
                & shortest_path1(X0,X8,X2)
                & inv1(X0,X1,X5,X7,X3,X2)
                & ( X1 != X8 )
                & ( tb2t(remove(vertex,t2tb1(X8),t2tb(X4))) = X7 )
                & mem(vertex,t2tb1(X8),t2tb(X4)) )
            & ~ is_empty(vertex,t2tb(X4))
            & ( true1 != X6 )
            & ( ( true1 = X6 )
              | ~ is_empty(vertex,t2tb(X4)) )
            & ( is_empty(vertex,t2tb(X4))
              | ( true1 != X6 ) ) )
        & ~ $less(X2,0)
        & ! [X18: vertex1] : closure1(X5,X4,X3,X18)
        & ( is_empty(vertex,t2tb(X3))
          | ~ is_empty(vertex,t2tb(X4)) )
        & inv1(X0,X1,X5,X4,X3,X2) )
   => ( ? [X6: bool1] :
          ( ? [X8: vertex1,X7: set_vertex] :
              ( ? [X10: set_vertex,X9: set_vertex] :
                  ( ? [X11: bool1] :
                      ( ? [X12: set_vertex] :
                          ( ? [X13: set_vertex] :
                              ( ? [X14: $int] :
                                  ( ? [X15: vertex1] : ~ closure1(X10,X12,X13,X15)
                                  & ( $sum(sK5,1) = X14 ) )
                              & ( tb2t(empty(vertex)) = X13 ) )
                          & ( X9 = X12 ) )
                      & ( true1 = X11 )
                      & ( ( true1 = X11 )
                        | ~ is_empty(vertex,t2tb(X7)) )
                      & ( is_empty(vertex,t2tb(X7))
                        | ( true1 != X11 ) ) )
                  & ! [X16: vertex1] : closure1(X10,X7,X9,X16)
                  & subset(vertex,t2tb(succ1(X8)),t2tb(X10))
                  & inv1(sK3,sK4,X10,X7,X9,sK5) )
              & ! [X17: vertex1] :
                  ( closure1(sK8,X7,sK6,X17)
                  | ( X8 = X17 ) )
              & shortest_path1(sK3,X8,sK5)
              & inv1(sK3,sK4,sK8,X7,sK6,sK5)
              & ( sK4 != X8 )
              & ( tb2t(remove(vertex,t2tb1(X8),t2tb(sK7))) = X7 )
              & mem(vertex,t2tb1(X8),t2tb(sK7)) )
          & ~ is_empty(vertex,t2tb(sK7))
          & ( true1 != X6 )
          & ( ( true1 = X6 )
            | ~ is_empty(vertex,t2tb(sK7)) )
          & ( is_empty(vertex,t2tb(sK7))
            | ( true1 != X6 ) ) )
      & ~ $less(sK5,0)
      & ! [X18: vertex1] : closure1(sK8,sK7,sK6,X18)
      & ( is_empty(vertex,t2tb(sK6))
        | ~ is_empty(vertex,t2tb(sK7)) )
      & inv1(sK3,sK4,sK8,sK7,sK6,sK5) ) ),
    introduced(choice_axiom,[]) ).

tff(f187,plain,
    ( ? [X6: bool1] :
        ( ? [X8: vertex1,X7: set_vertex] :
            ( ? [X10: set_vertex,X9: set_vertex] :
                ( ? [X11: bool1] :
                    ( ? [X12: set_vertex] :
                        ( ? [X13: set_vertex] :
                            ( ? [X14: $int] :
                                ( ? [X15: vertex1] : ~ closure1(X10,X12,X13,X15)
                                & ( $sum(sK5,1) = X14 ) )
                            & ( tb2t(empty(vertex)) = X13 ) )
                        & ( X9 = X12 ) )
                    & ( true1 = X11 )
                    & ( ( true1 = X11 )
                      | ~ is_empty(vertex,t2tb(X7)) )
                    & ( is_empty(vertex,t2tb(X7))
                      | ( true1 != X11 ) ) )
                & ! [X16: vertex1] : closure1(X10,X7,X9,X16)
                & subset(vertex,t2tb(succ1(X8)),t2tb(X10))
                & inv1(sK3,sK4,X10,X7,X9,sK5) )
            & ! [X17: vertex1] :
                ( closure1(sK8,X7,sK6,X17)
                | ( X8 = X17 ) )
            & shortest_path1(sK3,X8,sK5)
            & inv1(sK3,sK4,sK8,X7,sK6,sK5)
            & ( sK4 != X8 )
            & ( tb2t(remove(vertex,t2tb1(X8),t2tb(sK7))) = X7 )
            & mem(vertex,t2tb1(X8),t2tb(sK7)) )
        & ~ is_empty(vertex,t2tb(sK7))
        & ( true1 != X6 )
        & ( ( true1 = X6 )
          | ~ is_empty(vertex,t2tb(sK7)) )
        & ( is_empty(vertex,t2tb(sK7))
          | ( true1 != X6 ) ) )
   => ( ? [X8: vertex1,X7: set_vertex] :
          ( ? [X10: set_vertex,X9: set_vertex] :
              ( ? [X11: bool1] :
                  ( ? [X12: set_vertex] :
                      ( ? [X13: set_vertex] :
                          ( ? [X14: $int] :
                              ( ? [X15: vertex1] : ~ closure1(X10,X12,X13,X15)
                              & ( $sum(sK5,1) = X14 ) )
                          & ( tb2t(empty(vertex)) = X13 ) )
                      & ( X9 = X12 ) )
                  & ( true1 = X11 )
                  & ( ( true1 = X11 )
                    | ~ is_empty(vertex,t2tb(X7)) )
                  & ( is_empty(vertex,t2tb(X7))
                    | ( true1 != X11 ) ) )
              & ! [X16: vertex1] : closure1(X10,X7,X9,X16)
              & subset(vertex,t2tb(succ1(X8)),t2tb(X10))
              & inv1(sK3,sK4,X10,X7,X9,sK5) )
          & ! [X17: vertex1] :
              ( closure1(sK8,X7,sK6,X17)
              | ( X8 = X17 ) )
          & shortest_path1(sK3,X8,sK5)
          & inv1(sK3,sK4,sK8,X7,sK6,sK5)
          & ( sK4 != X8 )
          & ( tb2t(remove(vertex,t2tb1(X8),t2tb(sK7))) = X7 )
          & mem(vertex,t2tb1(X8),t2tb(sK7)) )
      & ~ is_empty(vertex,t2tb(sK7))
      & ( true1 != sK9 )
      & ( ( true1 = sK9 )
        | ~ is_empty(vertex,t2tb(sK7)) )
      & ( is_empty(vertex,t2tb(sK7))
        | ( true1 != sK9 ) ) ) ),
    introduced(choice_axiom,[]) ).

tff(f188,plain,
    ( ? [X8: vertex1,X7: set_vertex] :
        ( ? [X10: set_vertex,X9: set_vertex] :
            ( ? [X11: bool1] :
                ( ? [X12: set_vertex] :
                    ( ? [X13: set_vertex] :
                        ( ? [X14: $int] :
                            ( ? [X15: vertex1] : ~ closure1(X10,X12,X13,X15)
                            & ( $sum(sK5,1) = X14 ) )
                        & ( tb2t(empty(vertex)) = X13 ) )
                    & ( X9 = X12 ) )
                & ( true1 = X11 )
                & ( ( true1 = X11 )
                  | ~ is_empty(vertex,t2tb(X7)) )
                & ( is_empty(vertex,t2tb(X7))
                  | ( true1 != X11 ) ) )
            & ! [X16: vertex1] : closure1(X10,X7,X9,X16)
            & subset(vertex,t2tb(succ1(X8)),t2tb(X10))
            & inv1(sK3,sK4,X10,X7,X9,sK5) )
        & ! [X17: vertex1] :
            ( closure1(sK8,X7,sK6,X17)
            | ( X8 = X17 ) )
        & shortest_path1(sK3,X8,sK5)
        & inv1(sK3,sK4,sK8,X7,sK6,sK5)
        & ( sK4 != X8 )
        & ( tb2t(remove(vertex,t2tb1(X8),t2tb(sK7))) = X7 )
        & mem(vertex,t2tb1(X8),t2tb(sK7)) )
   => ( ? [X10: set_vertex,X9: set_vertex] :
          ( ? [X11: bool1] :
              ( ? [X12: set_vertex] :
                  ( ? [X13: set_vertex] :
                      ( ? [X14: $int] :
                          ( ? [X15: vertex1] : ~ closure1(X10,X12,X13,X15)
                          & ( $sum(sK5,1) = X14 ) )
                      & ( tb2t(empty(vertex)) = X13 ) )
                  & ( X9 = X12 ) )
              & ( true1 = X11 )
              & ( ( true1 = X11 )
                | ~ is_empty(vertex,t2tb(sK10)) )
              & ( is_empty(vertex,t2tb(sK10))
                | ( true1 != X11 ) ) )
          & ! [X16: vertex1] : closure1(X10,sK10,X9,X16)
          & subset(vertex,t2tb(succ1(sK11)),t2tb(X10))
          & inv1(sK3,sK4,X10,sK10,X9,sK5) )
      & ! [X17: vertex1] :
          ( closure1(sK8,sK10,sK6,X17)
          | ( sK11 = X17 ) )
      & shortest_path1(sK3,sK11,sK5)
      & inv1(sK3,sK4,sK8,sK10,sK6,sK5)
      & ( sK4 != sK11 )
      & ( sK10 = tb2t(remove(vertex,t2tb1(sK11),t2tb(sK7))) )
      & mem(vertex,t2tb1(sK11),t2tb(sK7)) ) ),
    introduced(choice_axiom,[]) ).

tff(f189,plain,
    ( ? [X10: set_vertex,X9: set_vertex] :
        ( ? [X11: bool1] :
            ( ? [X12: set_vertex] :
                ( ? [X13: set_vertex] :
                    ( ? [X14: $int] :
                        ( ? [X15: vertex1] : ~ closure1(X10,X12,X13,X15)
                        & ( $sum(sK5,1) = X14 ) )
                    & ( tb2t(empty(vertex)) = X13 ) )
                & ( X9 = X12 ) )
            & ( true1 = X11 )
            & ( ( true1 = X11 )
              | ~ is_empty(vertex,t2tb(sK10)) )
            & ( is_empty(vertex,t2tb(sK10))
              | ( true1 != X11 ) ) )
        & ! [X16: vertex1] : closure1(X10,sK10,X9,X16)
        & subset(vertex,t2tb(succ1(sK11)),t2tb(X10))
        & inv1(sK3,sK4,X10,sK10,X9,sK5) )
   => ( ? [X11: bool1] :
          ( ? [X12: set_vertex] :
              ( ? [X13: set_vertex] :
                  ( ? [X14: $int] :
                      ( ? [X15: vertex1] : ~ closure1(sK13,X12,X13,X15)
                      & ( $sum(sK5,1) = X14 ) )
                  & ( tb2t(empty(vertex)) = X13 ) )
              & ( sK12 = X12 ) )
          & ( true1 = X11 )
          & ( ( true1 = X11 )
            | ~ is_empty(vertex,t2tb(sK10)) )
          & ( is_empty(vertex,t2tb(sK10))
            | ( true1 != X11 ) ) )
      & ! [X16: vertex1] : closure1(sK13,sK10,sK12,X16)
      & subset(vertex,t2tb(succ1(sK11)),t2tb(sK13))
      & inv1(sK3,sK4,sK13,sK10,sK12,sK5) ) ),
    introduced(choice_axiom,[]) ).

tff(f190,plain,
    ( ? [X11: bool1] :
        ( ? [X12: set_vertex] :
            ( ? [X13: set_vertex] :
                ( ? [X14: $int] :
                    ( ? [X15: vertex1] : ~ closure1(sK13,X12,X13,X15)
                    & ( $sum(sK5,1) = X14 ) )
                & ( tb2t(empty(vertex)) = X13 ) )
            & ( sK12 = X12 ) )
        & ( true1 = X11 )
        & ( ( true1 = X11 )
          | ~ is_empty(vertex,t2tb(sK10)) )
        & ( is_empty(vertex,t2tb(sK10))
          | ( true1 != X11 ) ) )
   => ( ? [X12: set_vertex] :
          ( ? [X13: set_vertex] :
              ( ? [X14: $int] :
                  ( ? [X15: vertex1] : ~ closure1(sK13,X12,X13,X15)
                  & ( $sum(sK5,1) = X14 ) )
              & ( tb2t(empty(vertex)) = X13 ) )
          & ( sK12 = X12 ) )
      & ( true1 = sK14 )
      & ( ( true1 = sK14 )
        | ~ is_empty(vertex,t2tb(sK10)) )
      & ( is_empty(vertex,t2tb(sK10))
        | ( true1 != sK14 ) ) ) ),
    introduced(choice_axiom,[]) ).

tff(f191,plain,
    ( ? [X12: set_vertex] :
        ( ? [X13: set_vertex] :
            ( ? [X14: $int] :
                ( ? [X15: vertex1] : ~ closure1(sK13,X12,X13,X15)
                & ( $sum(sK5,1) = X14 ) )
            & ( tb2t(empty(vertex)) = X13 ) )
        & ( sK12 = X12 ) )
   => ( ? [X13: set_vertex] :
          ( ? [X14: $int] :
              ( ? [X15: vertex1] : ~ closure1(sK13,sK15,X13,X15)
              & ( $sum(sK5,1) = X14 ) )
          & ( tb2t(empty(vertex)) = X13 ) )
      & ( sK12 = sK15 ) ) ),
    introduced(choice_axiom,[]) ).

tff(f192,plain,
    ( ? [X13: set_vertex] :
        ( ? [X14: $int] :
            ( ? [X15: vertex1] : ~ closure1(sK13,sK15,X13,X15)
            & ( $sum(sK5,1) = X14 ) )
        & ( tb2t(empty(vertex)) = X13 ) )
   => ( ? [X14: $int] :
          ( ? [X15: vertex1] : ~ closure1(sK13,sK15,sK16,X15)
          & ( $sum(sK5,1) = X14 ) )
      & ( tb2t(empty(vertex)) = sK16 ) ) ),
    introduced(choice_axiom,[]) ).

tff(f193,plain,
    ( ? [X14: $int] :
        ( ? [X15: vertex1] : ~ closure1(sK13,sK15,sK16,X15)
        & ( $sum(sK5,1) = X14 ) )
   => ( ? [X15: vertex1] : ~ closure1(sK13,sK15,sK16,X15)
      & ( $sum(sK5,1) = sK17 ) ) ),
    introduced(choice_axiom,[]) ).

tff(f194,plain,
    ( ? [X15: vertex1] : ~ closure1(sK13,sK15,sK16,X15)
   => ~ closure1(sK13,sK15,sK16,sK18) ),
    introduced(choice_axiom,[]) ).

tff(f185,plain,
    ? [X0: vertex1,X1: vertex1,X2: $int,X3: set_vertex,X4: set_vertex,X5: set_vertex] :
      ( ? [X6: bool1] :
          ( ? [X7: set_vertex,X8: vertex1] :
              ( ? [X9: set_vertex,X10: set_vertex] :
                  ( ? [X11: bool1] :
                      ( ? [X12: set_vertex] :
                          ( ? [X13: set_vertex] :
                              ( ? [X14: $int] :
                                  ( ? [X15: vertex1] : ~ closure1(X10,X12,X13,X15)
                                  & ( $sum(X2,1) = X14 ) )
                              & ( tb2t(empty(vertex)) = X13 ) )
                          & ( X9 = X12 ) )
                      & ( true1 = X11 )
                      & ( ( true1 = X11 )
                        | ~ is_empty(vertex,t2tb(X7)) )
                      & ( is_empty(vertex,t2tb(X7))
                        | ( true1 != X11 ) ) )
                  & ! [X16: vertex1] : closure1(X10,X7,X9,X16)
                  & subset(vertex,t2tb(succ1(X8)),t2tb(X10))
                  & inv1(X0,X1,X10,X7,X9,X2) )
              & ! [X17: vertex1] :
                  ( closure1(X5,X7,X3,X17)
                  | ( X8 = X17 ) )
              & shortest_path1(X0,X8,X2)
              & inv1(X0,X1,X5,X7,X3,X2)
              & ( X1 != X8 )
              & ( tb2t(remove(vertex,t2tb1(X8),t2tb(X4))) = X7 )
              & mem(vertex,t2tb1(X8),t2tb(X4)) )
          & ~ is_empty(vertex,t2tb(X4))
          & ( true1 != X6 )
          & ( ( true1 = X6 )
            | ~ is_empty(vertex,t2tb(X4)) )
          & ( is_empty(vertex,t2tb(X4))
            | ( true1 != X6 ) ) )
      & ~ $less(X2,0)
      & ! [X18: vertex1] : closure1(X5,X4,X3,X18)
      & ( is_empty(vertex,t2tb(X3))
        | ~ is_empty(vertex,t2tb(X4)) )
      & inv1(X0,X1,X5,X4,X3,X2) ),
    inference(rectify,[],[f184]) ).

tff(f184,plain,
    ? [X0: vertex1,X1: vertex1,X2: $int,X3: set_vertex,X4: set_vertex,X5: set_vertex] :
      ( ? [X7: bool1] :
          ( ? [X8: set_vertex,X9: vertex1] :
              ( ? [X11: set_vertex,X12: set_vertex] :
                  ( ? [X14: bool1] :
                      ( ? [X15: set_vertex] :
                          ( ? [X16: set_vertex] :
                              ( ? [X17: $int] :
                                  ( ? [X18: vertex1] : ~ closure1(X12,X15,X16,X18)
                                  & ( $sum(X2,1) = X17 ) )
                              & ( tb2t(empty(vertex)) = X16 ) )
                          & ( X11 = X15 ) )
                      & ( true1 = X14 )
                      & ( ( true1 = X14 )
                        | ~ is_empty(vertex,t2tb(X8)) )
                      & ( is_empty(vertex,t2tb(X8))
                        | ( true1 != X14 ) ) )
                  & ! [X13: vertex1] : closure1(X12,X8,X11,X13)
                  & subset(vertex,t2tb(succ1(X9)),t2tb(X12))
                  & inv1(X0,X1,X12,X8,X11,X2) )
              & ! [X10: vertex1] :
                  ( closure1(X5,X8,X3,X10)
                  | ( X9 = X10 ) )
              & shortest_path1(X0,X9,X2)
              & inv1(X0,X1,X5,X8,X3,X2)
              & ( X1 != X9 )
              & ( tb2t(remove(vertex,t2tb1(X9),t2tb(X4))) = X8 )
              & mem(vertex,t2tb1(X9),t2tb(X4)) )
          & ~ is_empty(vertex,t2tb(X4))
          & ( true1 != X7 )
          & ( ( true1 = X7 )
            | ~ is_empty(vertex,t2tb(X4)) )
          & ( is_empty(vertex,t2tb(X4))
            | ( true1 != X7 ) ) )
      & ~ $less(X2,0)
      & ! [X6: vertex1] : closure1(X5,X4,X3,X6)
      & ( is_empty(vertex,t2tb(X3))
        | ~ is_empty(vertex,t2tb(X4)) )
      & inv1(X0,X1,X5,X4,X3,X2) ),
    inference(flattening,[],[f183]) ).

tff(f183,plain,
    ? [X0: vertex1,X1: vertex1,X2: $int,X3: set_vertex,X4: set_vertex,X5: set_vertex] :
      ( ? [X7: bool1] :
          ( ? [X8: set_vertex,X9: vertex1] :
              ( ? [X11: set_vertex,X12: set_vertex] :
                  ( ? [X14: bool1] :
                      ( ? [X15: set_vertex] :
                          ( ? [X16: set_vertex] :
                              ( ? [X17: $int] :
                                  ( ? [X18: vertex1] : ~ closure1(X12,X15,X16,X18)
                                  & ( $sum(X2,1) = X17 ) )
                              & ( tb2t(empty(vertex)) = X16 ) )
                          & ( X11 = X15 ) )
                      & ( true1 = X14 )
                      & ( ( true1 = X14 )
                        | ~ is_empty(vertex,t2tb(X8)) )
                      & ( is_empty(vertex,t2tb(X8))
                        | ( true1 != X14 ) ) )
                  & ! [X13: vertex1] : closure1(X12,X8,X11,X13)
                  & subset(vertex,t2tb(succ1(X9)),t2tb(X12))
                  & inv1(X0,X1,X12,X8,X11,X2) )
              & ! [X10: vertex1] :
                  ( closure1(X5,X8,X3,X10)
                  | ( X9 = X10 ) )
              & shortest_path1(X0,X9,X2)
              & inv1(X0,X1,X5,X8,X3,X2)
              & ( X1 != X9 )
              & ( tb2t(remove(vertex,t2tb1(X9),t2tb(X4))) = X8 )
              & mem(vertex,t2tb1(X9),t2tb(X4)) )
          & ~ is_empty(vertex,t2tb(X4))
          & ( true1 != X7 )
          & ( ( true1 = X7 )
            | ~ is_empty(vertex,t2tb(X4)) )
          & ( is_empty(vertex,t2tb(X4))
            | ( true1 != X7 ) ) )
      & ~ $less(X2,0)
      & ! [X6: vertex1] : closure1(X5,X4,X3,X6)
      & ( is_empty(vertex,t2tb(X3))
        | ~ is_empty(vertex,t2tb(X4)) )
      & inv1(X0,X1,X5,X4,X3,X2) ),
    inference(nnf_transformation,[],[f135]) ).

tff(f135,plain,
    ? [X0: vertex1,X1: vertex1,X2: $int,X3: set_vertex,X4: set_vertex,X5: set_vertex] :
      ( ? [X7: bool1] :
          ( ? [X8: set_vertex,X9: vertex1] :
              ( ? [X11: set_vertex,X12: set_vertex] :
                  ( ? [X14: bool1] :
                      ( ? [X15: set_vertex] :
                          ( ? [X16: set_vertex] :
                              ( ? [X17: $int] :
                                  ( ? [X18: vertex1] : ~ closure1(X12,X15,X16,X18)
                                  & ( $sum(X2,1) = X17 ) )
                              & ( tb2t(empty(vertex)) = X16 ) )
                          & ( X11 = X15 ) )
                      & ( true1 = X14 )
                      & ( ( true1 = X14 )
                      <=> is_empty(vertex,t2tb(X8)) ) )
                  & ! [X13: vertex1] : closure1(X12,X8,X11,X13)
                  & subset(vertex,t2tb(succ1(X9)),t2tb(X12))
                  & inv1(X0,X1,X12,X8,X11,X2) )
              & ! [X10: vertex1] :
                  ( closure1(X5,X8,X3,X10)
                  | ( X9 = X10 ) )
              & shortest_path1(X0,X9,X2)
              & inv1(X0,X1,X5,X8,X3,X2)
              & ( X1 != X9 )
              & ( tb2t(remove(vertex,t2tb1(X9),t2tb(X4))) = X8 )
              & mem(vertex,t2tb1(X9),t2tb(X4)) )
          & ~ is_empty(vertex,t2tb(X4))
          & ( true1 != X7 )
          & ( ( true1 = X7 )
          <=> is_empty(vertex,t2tb(X4)) ) )
      & ~ $less(X2,0)
      & ! [X6: vertex1] : closure1(X5,X4,X3,X6)
      & ( is_empty(vertex,t2tb(X3))
        | ~ is_empty(vertex,t2tb(X4)) )
      & inv1(X0,X1,X5,X4,X3,X2) ),
    inference(flattening,[],[f134]) ).

tff(f134,plain,
    ? [X0: vertex1,X1: vertex1,X2: $int,X3: set_vertex,X4: set_vertex,X5: set_vertex] :
      ( ? [X7: bool1] :
          ( ? [X8: set_vertex,X9: vertex1] :
              ( ? [X11: set_vertex,X12: set_vertex] :
                  ( ? [X14: bool1] :
                      ( ? [X15: set_vertex] :
                          ( ? [X16: set_vertex] :
                              ( ? [X17: $int] :
                                  ( ? [X18: vertex1] : ~ closure1(X12,X15,X16,X18)
                                  & ( $sum(X2,1) = X17 ) )
                              & ( tb2t(empty(vertex)) = X16 ) )
                          & ( X11 = X15 ) )
                      & ( true1 = X14 )
                      & ( ( true1 = X14 )
                      <=> is_empty(vertex,t2tb(X8)) ) )
                  & ! [X13: vertex1] : closure1(X12,X8,X11,X13)
                  & subset(vertex,t2tb(succ1(X9)),t2tb(X12))
                  & inv1(X0,X1,X12,X8,X11,X2) )
              & ! [X10: vertex1] :
                  ( closure1(X5,X8,X3,X10)
                  | ( X9 = X10 ) )
              & shortest_path1(X0,X9,X2)
              & inv1(X0,X1,X5,X8,X3,X2)
              & ( X1 != X9 )
              & ( tb2t(remove(vertex,t2tb1(X9),t2tb(X4))) = X8 )
              & mem(vertex,t2tb1(X9),t2tb(X4)) )
          & ~ is_empty(vertex,t2tb(X4))
          & ( true1 != X7 )
          & ( ( true1 = X7 )
          <=> is_empty(vertex,t2tb(X4)) ) )
      & ~ $less(X2,0)
      & ! [X6: vertex1] : closure1(X5,X4,X3,X6)
      & ( is_empty(vertex,t2tb(X3))
        | ~ is_empty(vertex,t2tb(X4)) )
      & inv1(X0,X1,X5,X4,X3,X2) ),
    inference(ennf_transformation,[],[f86]) ).

tff(f86,plain,
    ~ ! [X0: vertex1,X1: vertex1,X2: $int,X3: set_vertex,X4: set_vertex,X5: set_vertex] :
        ( ( ~ $less(X2,0)
          & ! [X6: vertex1] : closure1(X5,X4,X3,X6)
          & ( is_empty(vertex,t2tb(X4))
           => is_empty(vertex,t2tb(X3)) )
          & inv1(X0,X1,X5,X4,X3,X2) )
       => ! [X7: bool1] :
            ( ( ( true1 = X7 )
            <=> is_empty(vertex,t2tb(X4)) )
           => ( ( true1 != X7 )
             => ( ~ is_empty(vertex,t2tb(X4))
               => ! [X8: set_vertex,X9: vertex1] :
                    ( ( ( tb2t(remove(vertex,t2tb1(X9),t2tb(X4))) = X8 )
                      & mem(vertex,t2tb1(X9),t2tb(X4)) )
                   => ( ( X1 != X9 )
                     => ( ( ! [X10: vertex1] :
                              ( ( X9 != X10 )
                             => closure1(X5,X8,X3,X10) )
                          & shortest_path1(X0,X9,X2)
                          & inv1(X0,X1,X5,X8,X3,X2) )
                       => ! [X11: set_vertex,X12: set_vertex] :
                            ( ( ! [X13: vertex1] : closure1(X12,X8,X11,X13)
                              & subset(vertex,t2tb(succ1(X9)),t2tb(X12))
                              & inv1(X0,X1,X12,X8,X11,X2) )
                           => ! [X14: bool1] :
                                ( ( ( true1 = X14 )
                                <=> is_empty(vertex,t2tb(X8)) )
                               => ( ( true1 = X14 )
                                 => ! [X15: set_vertex] :
                                      ( ( X11 = X15 )
                                     => ! [X16: set_vertex] :
                                          ( ( tb2t(empty(vertex)) = X16 )
                                         => ! [X17: $int] :
                                              ( ( $sum(X2,1) = X17 )
                                             => ! [X18: vertex1] : closure1(X12,X15,X16,X18) ) ) ) ) ) ) ) ) ) ) ) ) ),
    inference(rectify,[],[f61]) ).

tff(f61,plain,
    ~ ! [X10: vertex1,X21: vertex1,X25: $int,X24: set_vertex,X23: set_vertex,X22: set_vertex] :
        ( ( ~ $less(X25,0)
          & ! [X1: vertex1] : closure1(X22,X23,X24,X1)
          & ( is_empty(vertex,t2tb(X23))
           => is_empty(vertex,t2tb(X24)) )
          & inv1(X10,X21,X22,X23,X24,X25) )
       => ! [X26: bool1] :
            ( ( ( true1 = X26 )
            <=> is_empty(vertex,t2tb(X23)) )
           => ( ( true1 != X26 )
             => ( ~ is_empty(vertex,t2tb(X23))
               => ! [X27: set_vertex,X12: vertex1] :
                    ( ( ( tb2t(remove(vertex,t2tb1(X12),t2tb(X23))) = X27 )
                      & mem(vertex,t2tb1(X12),t2tb(X23)) )
                   => ( ( X12 != X21 )
                     => ( ( ! [X1: vertex1] :
                              ( ( X1 != X12 )
                             => closure1(X22,X27,X24,X1) )
                          & shortest_path1(X10,X12,X25)
                          & inv1(X10,X21,X22,X27,X24,X25) )
                       => ! [X28: set_vertex,X29: set_vertex] :
                            ( ( ! [X1: vertex1] : closure1(X29,X27,X28,X1)
                              & subset(vertex,t2tb(succ1(X12)),t2tb(X29))
                              & inv1(X10,X21,X29,X27,X28,X25) )
                           => ! [X30: bool1] :
                                ( ( ( true1 = X30 )
                                <=> is_empty(vertex,t2tb(X27)) )
                               => ( ( true1 = X30 )
                                 => ! [X31: set_vertex] :
                                      ( ( X28 = X31 )
                                     => ! [X32: set_vertex] :
                                          ( ( tb2t(empty(vertex)) = X32 )
                                         => ! [X33: $int] :
                                              ( ( $sum(X25,1) = X33 )
                                             => ! [X1: vertex1] : closure1(X29,X31,X32,X1) ) ) ) ) ) ) ) ) ) ) ) ) ),
    inference(theory_normalization,[],[f60]) ).

tff(f60,negated_conjecture,
    ~ ! [X10: vertex1,X21: vertex1,X25: $int,X24: set_vertex,X23: set_vertex,X22: set_vertex] :
        ( ( $lesseq(0,X25)
          & ! [X1: vertex1] : closure1(X22,X23,X24,X1)
          & ( is_empty(vertex,t2tb(X23))
           => is_empty(vertex,t2tb(X24)) )
          & inv1(X10,X21,X22,X23,X24,X25) )
       => ! [X26: bool1] :
            ( ( ( true1 = X26 )
            <=> is_empty(vertex,t2tb(X23)) )
           => ( ( true1 != X26 )
             => ( ~ is_empty(vertex,t2tb(X23))
               => ! [X27: set_vertex,X12: vertex1] :
                    ( ( ( tb2t(remove(vertex,t2tb1(X12),t2tb(X23))) = X27 )
                      & mem(vertex,t2tb1(X12),t2tb(X23)) )
                   => ( ( X12 != X21 )
                     => ( ( ! [X1: vertex1] :
                              ( ( X1 != X12 )
                             => closure1(X22,X27,X24,X1) )
                          & shortest_path1(X10,X12,X25)
                          & inv1(X10,X21,X22,X27,X24,X25) )
                       => ! [X28: set_vertex,X29: set_vertex] :
                            ( ( ! [X1: vertex1] : closure1(X29,X27,X28,X1)
                              & subset(vertex,t2tb(succ1(X12)),t2tb(X29))
                              & inv1(X10,X21,X29,X27,X28,X25) )
                           => ! [X30: bool1] :
                                ( ( ( true1 = X30 )
                                <=> is_empty(vertex,t2tb(X27)) )
                               => ( ( true1 = X30 )
                                 => ! [X31: set_vertex] :
                                      ( ( X28 = X31 )
                                     => ! [X32: set_vertex] :
                                          ( ( tb2t(empty(vertex)) = X32 )
                                         => ! [X33: $int] :
                                              ( ( $sum(X25,1) = X33 )
                                             => ! [X1: vertex1] : closure1(X29,X31,X32,X1) ) ) ) ) ) ) ) ) ) ) ) ) ),
    inference(negated_conjecture,[],[f59]) ).

tff(f59,conjecture,
    ! [X10: vertex1,X21: vertex1,X25: $int,X24: set_vertex,X23: set_vertex,X22: set_vertex] :
      ( ( $lesseq(0,X25)
        & ! [X1: vertex1] : closure1(X22,X23,X24,X1)
        & ( is_empty(vertex,t2tb(X23))
         => is_empty(vertex,t2tb(X24)) )
        & inv1(X10,X21,X22,X23,X24,X25) )
     => ! [X26: bool1] :
          ( ( ( true1 = X26 )
          <=> is_empty(vertex,t2tb(X23)) )
         => ( ( true1 != X26 )
           => ( ~ is_empty(vertex,t2tb(X23))
             => ! [X27: set_vertex,X12: vertex1] :
                  ( ( ( tb2t(remove(vertex,t2tb1(X12),t2tb(X23))) = X27 )
                    & mem(vertex,t2tb1(X12),t2tb(X23)) )
                 => ( ( X12 != X21 )
                   => ( ( ! [X1: vertex1] :
                            ( ( X1 != X12 )
                           => closure1(X22,X27,X24,X1) )
                        & shortest_path1(X10,X12,X25)
                        & inv1(X10,X21,X22,X27,X24,X25) )
                     => ! [X28: set_vertex,X29: set_vertex] :
                          ( ( ! [X1: vertex1] : closure1(X29,X27,X28,X1)
                            & subset(vertex,t2tb(succ1(X12)),t2tb(X29))
                            & inv1(X10,X21,X29,X27,X28,X25) )
                         => ! [X30: bool1] :
                              ( ( ( true1 = X30 )
                              <=> is_empty(vertex,t2tb(X27)) )
                             => ( ( true1 = X30 )
                               => ! [X31: set_vertex] :
                                    ( ( X28 = X31 )
                                   => ! [X32: set_vertex] :
                                        ( ( tb2t(empty(vertex)) = X32 )
                                       => ! [X33: $int] :
                                            ( ( $sum(X25,1) = X33 )
                                           => ! [X1: vertex1] : closure1(X29,X31,X32,X1) ) ) ) ) ) ) ) ) ) ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',wP_parameter_bfs) ).

tff(f53773,plain,
    ~ mem(vertex,t2tb1(sK31(sK13,sK18)),t2tb(succ1(sK18))),
    inference(unit_resulting_resolution,[],[f45273,f23848,f393]) ).

tff(f393,plain,
    ! [X3: vertex1,X0: set_vertex,X5: vertex1] :
      ( ~ mem(vertex,t2tb1(X5),t2tb(succ1(X3)))
      | mem(vertex,t2tb1(X5),t2tb(X0))
      | sP36(X3,X0) ),
    inference(cnf_transformation,[],[f393_D]) ).

tff(f393_D,plain,
    ! [X0,X3] :
      ( ! [X5] :
          ( ~ mem(vertex,t2tb1(X5),t2tb(succ1(X3)))
          | mem(vertex,t2tb1(X5),t2tb(X0)) )
    <=> ~ sP36(X3,X0) ),
    introduced(general_splitting_component_introduction,[new_symbols(naming,[sP36])]) ).

tff(f23848,plain,
    ~ mem(vertex,t2tb1(sK31(sK13,sK18)),t2tb(sK13)),
    inference(unit_resulting_resolution,[],[f267,f353]) ).

tff(f353,plain,
    ! [X2: set_vertex,X3: vertex1,X0: set_vertex,X1: set_vertex] :
      ( ~ mem(vertex,t2tb1(sK31(X0,X3)),t2tb(X0))
      | closure1(X0,X1,X2,X3) ),
    inference(cnf_transformation,[],[f231]) ).

tff(f45273,plain,
    ~ sP36(sK18,sK13),
    inference(unit_resulting_resolution,[],[f376,f8143,f447,f8377,f394]) ).

tff(f394,plain,
    ! [X2: set_vertex,X3: vertex1,X0: set_vertex,X1: set_vertex] :
      ( ~ sP36(X3,X0)
      | mem(vertex,t2tb1(X3),t2tb(X1))
      | ~ mem(vertex,t2tb1(X3),t2tb(X0))
      | ~ closure1(X0,X1,X2,X3)
      | mem(vertex,t2tb1(X3),t2tb(X2)) ),
    inference(general_splitting,[],[f348,f393_D]) ).

tff(f348,plain,
    ! [X2: set_vertex,X3: vertex1,X0: set_vertex,X1: set_vertex,X5: vertex1] :
      ( mem(vertex,t2tb1(X5),t2tb(X0))
      | ~ mem(vertex,t2tb1(X5),t2tb(succ1(X3)))
      | mem(vertex,t2tb1(X3),t2tb(X2))
      | mem(vertex,t2tb1(X3),t2tb(X1))
      | ~ mem(vertex,t2tb1(X3),t2tb(X0))
      | ~ closure1(X0,X1,X2,X3) ),
    inference(cnf_transformation,[],[f231]) ).

tff(f8377,plain,
    ~ mem(vertex,t2tb1(sK18),t2tb(sK15)),
    inference(unit_resulting_resolution,[],[f267,f350]) ).

tff(f350,plain,
    ! [X2: set_vertex,X3: vertex1,X0: set_vertex,X1: set_vertex] :
      ( ~ mem(vertex,t2tb1(X3),t2tb(X1))
      | closure1(X0,X1,X2,X3) ),
    inference(cnf_transformation,[],[f231]) ).

tff(f447,plain,
    ! [X0: uni] : ~ mem(vertex,X0,t2tb(sK10)),
    inference(unit_resulting_resolution,[],[f407,f289]) ).

tff(f289,plain,
    ! [X3: uni,X0: ty,X1: uni] :
      ( ~ is_empty(X0,X1)
      | ~ mem(X0,X3,X1) ),
    inference(cnf_transformation,[],[f201]) ).

tff(f201,plain,
    ! [X0: ty,X1: uni] :
      ( ( is_empty(X0,X1)
        | ( mem(X0,sK21(X0,X1),X1)
          & sort1(X0,sK21(X0,X1)) ) )
      & ( ! [X3: uni] : ~ mem(X0,X3,X1)
        | ~ is_empty(X0,X1) ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK21])],[f140,f200]) ).

tff(f200,plain,
    ! [X0: ty,X1: uni] :
      ( ? [X2: uni] :
          ( mem(X0,X2,X1)
          & sort1(X0,X2) )
     => ( mem(X0,sK21(X0,X1),X1)
        & sort1(X0,sK21(X0,X1)) ) ),
    introduced(choice_axiom,[]) ).

tff(f140,plain,
    ! [X0: ty,X1: uni] :
      ( ( is_empty(X0,X1)
        | ? [X2: uni] :
            ( mem(X0,X2,X1)
            & sort1(X0,X2) ) )
      & ( ! [X3: uni] : ~ mem(X0,X3,X1)
        | ~ is_empty(X0,X1) ) ),
    inference(ennf_transformation,[],[f99]) ).

tff(f99,plain,
    ! [X0: ty,X1: uni] :
      ( ( ! [X2: uni] :
            ( sort1(X0,X2)
           => ~ mem(X0,X2,X1) )
       => is_empty(X0,X1) )
      & ( is_empty(X0,X1)
       => ! [X3: uni] : ~ mem(X0,X3,X1) ) ),
    inference(rectify,[],[f15]) ).

tff(f15,axiom,
    ! [X0: ty,X10: uni] :
      ( ( ! [X1: uni] :
            ( sort1(X0,X1)
           => ~ mem(X0,X1,X10) )
       => is_empty(X0,X10) )
      & ( is_empty(X0,X10)
       => ! [X1: uni] : ~ mem(X0,X1,X10) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',is_empty_def) ).

tff(f407,plain,
    is_empty(vertex,t2tb(sK10)),
    inference(trivial_inequality_removal,[],[f375]) ).

tff(f375,plain,
    ( is_empty(vertex,t2tb(sK10))
    | ( sK14 != sK14 ) ),
    inference(definition_unfolding,[],[f261,f263]) ).

tff(f263,plain,
    true1 = sK14,
    inference(cnf_transformation,[],[f195]) ).

tff(f261,plain,
    ( is_empty(vertex,t2tb(sK10))
    | ( true1 != sK14 ) ),
    inference(cnf_transformation,[],[f195]) ).

tff(f8143,plain,
    mem(vertex,t2tb1(sK18),t2tb(sK13)),
    inference(unit_resulting_resolution,[],[f267,f349]) ).

tff(f349,plain,
    ! [X2: set_vertex,X3: vertex1,X0: set_vertex,X1: set_vertex] :
      ( closure1(X0,X1,X2,X3)
      | mem(vertex,t2tb1(X3),t2tb(X0)) ),
    inference(cnf_transformation,[],[f231]) ).

tff(f376,plain,
    ! [X16: vertex1] : closure1(sK13,sK10,sK15,X16),
    inference(definition_unfolding,[],[f260,f264]) ).

tff(f264,plain,
    sK12 = sK15,
    inference(cnf_transformation,[],[f195]) ).

tff(f260,plain,
    ! [X16: vertex1] : closure1(sK13,sK10,sK12,X16),
    inference(cnf_transformation,[],[f195]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.11/0.13  % Problem    : SWW672_2 : TPTP v8.2.0. Released v6.1.0.
% 0.11/0.14  % Command    : vampire --mode casc_sat -m 16384 --cores 7 -t %d %s
% 0.14/0.36  % Computer : n003.cluster.edu
% 0.14/0.36  % Model    : x86_64 x86_64
% 0.14/0.36  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/0.36  % Memory   : 8042.1875MB
% 0.14/0.36  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.14/0.36  % CPULimit   : 300
% 0.14/0.36  % WCLimit    : 300
% 0.14/0.36  % DateTime   : Sat May 18 20:06:53 EDT 2024
% 0.14/0.37  % CPUTime    : 
% 0.14/0.37  % (20205)Running in auto input_syntax mode. Trying TPTP
% 0.14/0.39  % (20208)WARNING: value z3 for option sas not known
% 0.14/0.39  % (20209)fmb+10_1_bce=on:fmbsr=1.5:nm=32_533 on theBenchmark for (533ds/0Mi)
% 0.14/0.39  % (20211)ott-10_8_av=off:bd=preordered:bs=on:fsd=off:fsr=off:fde=unused:irw=on:lcm=predicate:lma=on:nm=4:nwc=1.7:sp=frequency_522 on theBenchmark for (522ds/0Mi)
% 0.14/0.39  % (20208)dis+2_11_add=large:afr=on:amm=off:bd=off:bce=on:fsd=off:fde=none:gs=on:gsaa=full_model:gsem=off:irw=on:msp=off:nm=4:nwc=1.3:sas=z3:sims=off:sac=on:sp=reverse_arity_569 on theBenchmark for (569ds/0Mi)
% 0.14/0.40  % (20207)fmb+10_1_bce=on:fmbdsb=on:fmbes=contour:fmbswr=3:fde=none:nm=0_793 on theBenchmark for (793ds/0Mi)
% 0.14/0.40  % (20212)ott+1_64_av=off:bd=off:bce=on:fsd=off:fde=unused:gsp=on:irw=on:lcm=predicate:lma=on:nm=2:nwc=1.1:sims=off:urr=on_497 on theBenchmark for (497ds/0Mi)
% 0.14/0.40  % (20206)fmb+10_1_bce=on:fmbas=function:fmbsr=1.2:fde=unused:nm=0_846 on theBenchmark for (846ds/0Mi)
% 0.14/0.40  % (20210)ott+10_10:1_add=off:afr=on:amm=off:anc=all:bd=off:bs=on:fsr=off:irw=on:lma=on:msp=off:nm=4:nwc=4.0:sac=on:sp=reverse_frequency_531 on theBenchmark for (531ds/0Mi)
% 0.14/0.40  % (20207)WARNING: trying to run FMB on interpreted or otherwise provably infinite-domain problem!
% 0.14/0.40  % (20207)Terminated due to inappropriate strategy.
% 0.14/0.40  % (20207)------------------------------
% 0.14/0.40  % (20207)Version: Vampire 4.8 (commit 3a798227e on 2024-05-03 07:42:47 +0200)
% 0.14/0.40  % (20207)Termination reason: Inappropriate
% 0.14/0.40  
% 0.14/0.40  % (20207)Memory used [KB]: 1012
% 0.14/0.40  % (20207)Time elapsed: 0.007 s
% 0.14/0.40  % (20207)Instructions burned: 12 (million)
% 0.14/0.40  % (20209)WARNING: trying to run FMB on interpreted or otherwise provably infinite-domain problem!
% 0.14/0.40  % (20209)Terminated due to inappropriate strategy.
% 0.14/0.40  % (20209)------------------------------
% 0.14/0.40  % (20209)Version: Vampire 4.8 (commit 3a798227e on 2024-05-03 07:42:47 +0200)
% 0.14/0.40  % (20209)Termination reason: Inappropriate
% 0.14/0.40  
% 0.14/0.40  % (20209)Memory used [KB]: 1014
% 0.14/0.40  % (20209)Time elapsed: 0.009 s
% 0.14/0.40  % (20209)Instructions burned: 13 (million)
% 0.14/0.40  % (20207)------------------------------
% 0.14/0.40  % (20207)------------------------------
% 0.14/0.40  % (20209)------------------------------
% 0.14/0.40  % (20209)------------------------------
% 0.14/0.40  % (20206)WARNING: trying to run FMB on interpreted or otherwise provably infinite-domain problem!
% 0.14/0.40  % (20206)Terminated due to inappropriate strategy.
% 0.14/0.40  % (20206)------------------------------
% 0.14/0.40  % (20206)Version: Vampire 4.8 (commit 3a798227e on 2024-05-03 07:42:47 +0200)
% 0.14/0.40  % (20206)Termination reason: Inappropriate
% 0.14/0.40  
% 0.14/0.40  % (20206)Memory used [KB]: 1012
% 0.14/0.40  % (20206)Time elapsed: 0.008 s
% 0.14/0.40  % (20206)Instructions burned: 12 (million)
% 0.14/0.40  % (20206)------------------------------
% 0.14/0.40  % (20206)------------------------------
% 0.22/0.42  % (20213)fmb+10_1_fmbas=expand:fmbsr=1.1:gsp=on:nm=4_411 on theBenchmark for (411ds/0Mi)
% 0.22/0.42  % (20214)ott+1_9_av=off:bd=off:bs=on:gsp=on:lcm=predicate:nm=4:sp=weighted_frequency:urr=on_382 on theBenchmark for (382ds/0Mi)
% 0.22/0.42  % (20215)lrs-11_2:5_fsd=off:fde=none:nm=4:nwc=5.0:sims=off:sp=reverse_weighted_frequency:stl=62_367 on theBenchmark for (367ds/0Mi)
% 0.22/0.42  % (20213)WARNING: trying to run FMB on interpreted or otherwise provably infinite-domain problem!
% 0.22/0.42  % (20213)Terminated due to inappropriate strategy.
% 0.22/0.42  % (20213)------------------------------
% 0.22/0.42  % (20213)Version: Vampire 4.8 (commit 3a798227e on 2024-05-03 07:42:47 +0200)
% 0.22/0.42  % (20213)Termination reason: Inappropriate
% 0.22/0.42  
% 0.22/0.42  % (20213)Memory used [KB]: 953
% 0.22/0.42  % (20213)Time elapsed: 0.007 s
% 0.22/0.42  % (20213)Instructions burned: 11 (million)
% 0.22/0.42  % (20213)------------------------------
% 0.22/0.42  % (20213)------------------------------
% 0.22/0.44  % (20216)ott+4_64_acc=on:anc=none:bs=on:bsr=on:fsd=off:gs=on:gsem=off:irw=on:msp=off:nwc=2.5:nicw=on:sims=off_354 on theBenchmark for (354ds/0Mi)
% 9.90/1.78  % (20214)First to succeed.
% 9.95/1.78  % (20214)Solution written to "/export/starexec/sandbox2/tmp/vampire-proof-20205"
% 9.95/1.79  % (20214)Refutation found. Thanks to Tanya!
% 9.95/1.79  % SZS status Theorem for theBenchmark
% 9.95/1.79  % SZS output start Proof for theBenchmark
% See solution above
% 9.95/1.79  % (20214)------------------------------
% 9.95/1.79  % (20214)Version: Vampire 4.8 (commit 3a798227e on 2024-05-03 07:42:47 +0200)
% 9.95/1.79  % (20214)Termination reason: Refutation
% 9.95/1.79  
% 9.95/1.79  % (20214)Memory used [KB]: 15927
% 9.95/1.79  % (20214)Time elapsed: 1.364 s
% 9.95/1.79  % (20214)Instructions burned: 2611 (million)
% 9.95/1.79  % (20205)Success in time 1.401 s
%------------------------------------------------------------------------------