TSTP Solution File: SYN548+1 by Vampire---4.8

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Vampire---4.8
% Problem  : SYN548+1 : TPTP v8.1.2. Released v2.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : vampire --ignore_missing on --mode portfolio/casc [--schedule casc_hol_2020] -p tptp -om szs -t %d %s

% Computer : n006.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8042.1875MB
% OS       : Linux 3.10.0-693.el7.x86_64
% CPULimit : 300s
% WCLimit  : 300s
% DateTime : Fri Sep  1 03:41:34 EDT 2023

% Result   : Theorem 0.21s 0.47s
% Output   : Refutation 0.21s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   24
%            Number of leaves      :   14
% Syntax   : Number of formulae    :  106 (   5 unt;   0 def)
%            Number of atoms       :  422 (   0 equ)
%            Maximal formula atoms :   10 (   3 avg)
%            Number of connectives :  516 ( 200   ~; 232   |;  52   &)
%                                         (   8 <=>;  21  =>;   0  <=;   3 <~>)
%            Maximal formula depth :   12 (   6 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :   10 (   9 usr;   4 prp; 0-2 aty)
%            Number of functors    :    6 (   6 usr;   1 con; 0-1 aty)
%            Number of variables   :  171 (; 148   !;  23   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f1917,plain,
    $false,
    inference(avatar_sat_refutation,[],[f352,f515,f1903,f1907]) ).

fof(f1907,plain,
    ( ~ spl8_10
    | spl8_94 ),
    inference(avatar_contradiction_clause,[],[f1906]) ).

fof(f1906,plain,
    ( $false
    | ~ spl8_10
    | spl8_94 ),
    inference(subsumption_resolution,[],[f1905,f956]) ).

fof(f956,plain,
    ( ~ sP1(sK7(initial_world))
    | ~ spl8_10 ),
    inference(subsumption_resolution,[],[f353,f292]) ).

fof(f292,plain,
    ! [X0] :
      ( sP0(X0)
      | ~ sP1(X0) ),
    inference(duplicate_literal_removal,[],[f289]) ).

fof(f289,plain,
    ! [X0] :
      ( ~ sP1(X0)
      | sP0(X0)
      | sP0(X0) ),
    inference(resolution,[],[f288,f37]) ).

fof(f37,plain,
    ! [X0] :
      ( reachable(X0,sK5(X0))
      | sP0(X0) ),
    inference(cnf_transformation,[],[f26]) ).

fof(f26,plain,
    ! [X0] :
      ( ( sP0(X0)
        | ( ~ q(sK6(X0))
          & reachable(sK5(X0),sK6(X0))
          & ~ p(sK5(X0))
          & reachable(X0,sK5(X0)) ) )
      & ( ! [X3] :
            ( ! [X4] :
                ( q(X4)
                | ~ reachable(X3,X4) )
            | p(X3)
            | ~ reachable(X0,X3) )
        | ~ sP0(X0) ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK5,sK6])],[f23,f25,f24]) ).

fof(f24,plain,
    ! [X0] :
      ( ? [X1] :
          ( ? [X2] :
              ( ~ q(X2)
              & reachable(X1,X2) )
          & ~ p(X1)
          & reachable(X0,X1) )
     => ( ? [X2] :
            ( ~ q(X2)
            & reachable(sK5(X0),X2) )
        & ~ p(sK5(X0))
        & reachable(X0,sK5(X0)) ) ),
    introduced(choice_axiom,[]) ).

fof(f25,plain,
    ! [X0] :
      ( ? [X2] :
          ( ~ q(X2)
          & reachable(sK5(X0),X2) )
     => ( ~ q(sK6(X0))
        & reachable(sK5(X0),sK6(X0)) ) ),
    introduced(choice_axiom,[]) ).

fof(f23,plain,
    ! [X0] :
      ( ( sP0(X0)
        | ? [X1] :
            ( ? [X2] :
                ( ~ q(X2)
                & reachable(X1,X2) )
            & ~ p(X1)
            & reachable(X0,X1) ) )
      & ( ! [X3] :
            ( ! [X4] :
                ( q(X4)
                | ~ reachable(X3,X4) )
            | p(X3)
            | ~ reachable(X0,X3) )
        | ~ sP0(X0) ) ),
    inference(rectify,[],[f22]) ).

fof(f22,plain,
    ! [X1] :
      ( ( sP0(X1)
        | ? [X2] :
            ( ? [X3] :
                ( ~ q(X3)
                & reachable(X2,X3) )
            & ~ p(X2)
            & reachable(X1,X2) ) )
      & ( ! [X2] :
            ( ! [X3] :
                ( q(X3)
                | ~ reachable(X2,X3) )
            | p(X2)
            | ~ reachable(X1,X2) )
        | ~ sP0(X1) ) ),
    inference(nnf_transformation,[],[f10]) ).

fof(f10,plain,
    ! [X1] :
      ( sP0(X1)
    <=> ! [X2] :
          ( ! [X3] :
              ( q(X3)
              | ~ reachable(X2,X3) )
          | p(X2)
          | ~ reachable(X1,X2) ) ),
    introduced(predicate_definition_introduction,[new_symbols(naming,[sP0])]) ).

fof(f288,plain,
    ! [X14,X15] :
      ( ~ reachable(X14,sK5(X15))
      | ~ sP1(X14)
      | sP0(X15) ),
    inference(subsumption_resolution,[],[f287,f40]) ).

fof(f40,plain,
    ! [X0] :
      ( ~ q(sK6(X0))
      | sP0(X0) ),
    inference(cnf_transformation,[],[f26]) ).

fof(f287,plain,
    ! [X14,X15] :
      ( ~ sP1(X14)
      | q(sK6(X15))
      | ~ reachable(X14,sK5(X15))
      | sP0(X15) ),
    inference(subsumption_resolution,[],[f284,f78]) ).

fof(f78,plain,
    ! [X14,X15] :
      ( ~ reachable(X15,sK5(X14))
      | ~ sP0(X15)
      | sP0(X14) ),
    inference(subsumption_resolution,[],[f77,f38]) ).

fof(f38,plain,
    ! [X0] :
      ( ~ p(sK5(X0))
      | sP0(X0) ),
    inference(cnf_transformation,[],[f26]) ).

fof(f77,plain,
    ! [X14,X15] :
      ( p(sK5(X14))
      | ~ reachable(X15,sK5(X14))
      | ~ sP0(X15)
      | sP0(X14) ),
    inference(subsumption_resolution,[],[f74,f40]) ).

fof(f74,plain,
    ! [X14,X15] :
      ( q(sK6(X14))
      | p(sK5(X14))
      | ~ reachable(X15,sK5(X14))
      | ~ sP0(X15)
      | sP0(X14) ),
    inference(resolution,[],[f36,f39]) ).

fof(f39,plain,
    ! [X0] :
      ( reachable(sK5(X0),sK6(X0))
      | sP0(X0) ),
    inference(cnf_transformation,[],[f26]) ).

fof(f36,plain,
    ! [X3,X0,X4] :
      ( ~ reachable(X3,X4)
      | q(X4)
      | p(X3)
      | ~ reachable(X0,X3)
      | ~ sP0(X0) ),
    inference(cnf_transformation,[],[f26]) ).

fof(f284,plain,
    ! [X14,X15] :
      ( ~ sP1(X14)
      | sP0(X14)
      | q(sK6(X15))
      | ~ reachable(X14,sK5(X15))
      | sP0(X15) ),
    inference(resolution,[],[f94,f39]) ).

fof(f94,plain,
    ! [X2,X3,X1] :
      ( ~ reachable(X3,X1)
      | ~ sP1(X2)
      | sP0(X2)
      | q(X1)
      | ~ reachable(X2,X3) ),
    inference(resolution,[],[f55,f44]) ).

fof(f44,plain,
    ! [X2,X0,X1] :
      ( reachable(X0,X2)
      | ~ reachable(X1,X2)
      | ~ reachable(X0,X1) ),
    inference(cnf_transformation,[],[f9]) ).

fof(f9,plain,
    ! [X0,X1,X2] :
      ( reachable(X0,X2)
      | ~ reachable(X1,X2)
      | ~ reachable(X0,X1) ),
    inference(flattening,[],[f8]) ).

fof(f8,plain,
    ! [X0,X1,X2] :
      ( reachable(X0,X2)
      | ~ reachable(X1,X2)
      | ~ reachable(X0,X1) ),
    inference(ennf_transformation,[],[f2]) ).

fof(f2,axiom,
    ! [X0,X1,X2] :
      ( ( reachable(X1,X2)
        & reachable(X0,X1) )
     => reachable(X0,X2) ),
    file('/export/starexec/sandbox2/tmp/tmp.CcLt35AU1a/Vampire---4.8_32712',transitivity_of_reachable) ).

fof(f55,plain,
    ! [X10,X11] :
      ( ~ reachable(X10,X11)
      | q(X11)
      | ~ sP1(X10)
      | sP0(X10) ),
    inference(subsumption_resolution,[],[f51,f38]) ).

fof(f51,plain,
    ! [X10,X11] :
      ( ~ reachable(X10,X11)
      | p(sK5(X10))
      | q(X11)
      | ~ sP1(X10)
      | sP0(X10) ),
    inference(resolution,[],[f31,f37]) ).

fof(f31,plain,
    ! [X3,X0,X4] :
      ( ~ reachable(X0,X4)
      | ~ reachable(X0,X3)
      | p(X4)
      | q(X3)
      | ~ sP1(X0) ),
    inference(cnf_transformation,[],[f21]) ).

fof(f21,plain,
    ! [X0] :
      ( ( sP1(X0)
        | ( ~ q(sK3(X0))
          & reachable(X0,sK3(X0))
          & ~ p(sK4(X0))
          & reachable(X0,sK4(X0)) ) )
      & ( ! [X3] :
            ( q(X3)
            | ~ reachable(X0,X3) )
        | ! [X4] :
            ( p(X4)
            | ~ reachable(X0,X4) )
        | ~ sP1(X0) ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK3,sK4])],[f18,f20,f19]) ).

fof(f19,plain,
    ! [X0] :
      ( ? [X1] :
          ( ~ q(X1)
          & reachable(X0,X1) )
     => ( ~ q(sK3(X0))
        & reachable(X0,sK3(X0)) ) ),
    introduced(choice_axiom,[]) ).

fof(f20,plain,
    ! [X0] :
      ( ? [X2] :
          ( ~ p(X2)
          & reachable(X0,X2) )
     => ( ~ p(sK4(X0))
        & reachable(X0,sK4(X0)) ) ),
    introduced(choice_axiom,[]) ).

fof(f18,plain,
    ! [X0] :
      ( ( sP1(X0)
        | ( ? [X1] :
              ( ~ q(X1)
              & reachable(X0,X1) )
          & ? [X2] :
              ( ~ p(X2)
              & reachable(X0,X2) ) ) )
      & ( ! [X3] :
            ( q(X3)
            | ~ reachable(X0,X3) )
        | ! [X4] :
            ( p(X4)
            | ~ reachable(X0,X4) )
        | ~ sP1(X0) ) ),
    inference(rectify,[],[f17]) ).

fof(f17,plain,
    ! [X1] :
      ( ( sP1(X1)
        | ( ? [X4] :
              ( ~ q(X4)
              & reachable(X1,X4) )
          & ? [X5] :
              ( ~ p(X5)
              & reachable(X1,X5) ) ) )
      & ( ! [X4] :
            ( q(X4)
            | ~ reachable(X1,X4) )
        | ! [X5] :
            ( p(X5)
            | ~ reachable(X1,X5) )
        | ~ sP1(X1) ) ),
    inference(flattening,[],[f16]) ).

fof(f16,plain,
    ! [X1] :
      ( ( sP1(X1)
        | ( ? [X4] :
              ( ~ q(X4)
              & reachable(X1,X4) )
          & ? [X5] :
              ( ~ p(X5)
              & reachable(X1,X5) ) ) )
      & ( ! [X4] :
            ( q(X4)
            | ~ reachable(X1,X4) )
        | ! [X5] :
            ( p(X5)
            | ~ reachable(X1,X5) )
        | ~ sP1(X1) ) ),
    inference(nnf_transformation,[],[f11]) ).

fof(f11,plain,
    ! [X1] :
      ( sP1(X1)
    <=> ( ! [X4] :
            ( q(X4)
            | ~ reachable(X1,X4) )
        | ! [X5] :
            ( p(X5)
            | ~ reachable(X1,X5) ) ) ),
    introduced(predicate_definition_introduction,[new_symbols(naming,[sP1])]) ).

fof(f353,plain,
    ( ~ sP0(sK7(initial_world))
    | ~ sP1(sK7(initial_world))
    | ~ spl8_10 ),
    inference(resolution,[],[f342,f30]) ).

fof(f30,plain,
    ! [X0] :
      ( ~ sP2(X0)
      | ~ sP0(X0)
      | ~ sP1(X0) ),
    inference(cnf_transformation,[],[f15]) ).

fof(f15,plain,
    ! [X0] :
      ( ( ( ~ sP1(X0)
          | ~ sP0(X0) )
        & ( sP1(X0)
          | sP0(X0) ) )
      | ~ sP2(X0) ),
    inference(rectify,[],[f14]) ).

fof(f14,plain,
    ! [X1] :
      ( ( ( ~ sP1(X1)
          | ~ sP0(X1) )
        & ( sP1(X1)
          | sP0(X1) ) )
      | ~ sP2(X1) ),
    inference(nnf_transformation,[],[f12]) ).

fof(f12,plain,
    ! [X1] :
      ( ( sP0(X1)
      <~> sP1(X1) )
      | ~ sP2(X1) ),
    introduced(predicate_definition_introduction,[new_symbols(naming,[sP2])]) ).

fof(f342,plain,
    ( sP2(sK7(initial_world))
    | ~ spl8_10 ),
    inference(avatar_component_clause,[],[f341]) ).

fof(f341,plain,
    ( spl8_10
  <=> sP2(sK7(initial_world)) ),
    introduced(avatar_definition,[new_symbols(naming,[spl8_10])]) ).

fof(f1905,plain,
    ( sP1(sK7(initial_world))
    | ~ spl8_10
    | spl8_94 ),
    inference(subsumption_resolution,[],[f1756,f1904]) ).

fof(f1904,plain,
    ( sP0(sK7(initial_world))
    | ~ spl8_10 ),
    inference(subsumption_resolution,[],[f974,f342]) ).

fof(f974,plain,
    ( sP0(sK7(initial_world))
    | ~ sP2(sK7(initial_world))
    | ~ spl8_10 ),
    inference(resolution,[],[f956,f29]) ).

fof(f29,plain,
    ! [X0] :
      ( sP1(X0)
      | sP0(X0)
      | ~ sP2(X0) ),
    inference(cnf_transformation,[],[f15]) ).

fof(f1756,plain,
    ( ~ sP0(sK7(initial_world))
    | sP1(sK7(initial_world))
    | spl8_94 ),
    inference(resolution,[],[f1665,f134]) ).

fof(f134,plain,
    ! [X5] :
      ( sP0(sK4(X5))
      | ~ sP0(X5)
      | sP1(X5) ),
    inference(resolution,[],[f130,f32]) ).

fof(f32,plain,
    ! [X0] :
      ( reachable(X0,sK4(X0))
      | sP1(X0) ),
    inference(cnf_transformation,[],[f21]) ).

fof(f130,plain,
    ! [X0,X1] :
      ( ~ reachable(X1,X0)
      | ~ sP0(X1)
      | sP0(X0) ),
    inference(duplicate_literal_removal,[],[f126]) ).

fof(f126,plain,
    ! [X0,X1] :
      ( sP0(X0)
      | ~ sP0(X1)
      | ~ reachable(X1,X0)
      | sP0(X0) ),
    inference(resolution,[],[f81,f37]) ).

fof(f81,plain,
    ! [X2,X3,X4] :
      ( ~ reachable(X4,sK5(X3))
      | sP0(X3)
      | ~ sP0(X2)
      | ~ reachable(X2,X4) ),
    inference(resolution,[],[f78,f44]) ).

fof(f1665,plain,
    ( ~ sP0(sK4(sK7(initial_world)))
    | spl8_94 ),
    inference(avatar_component_clause,[],[f1663]) ).

fof(f1663,plain,
    ( spl8_94
  <=> sP0(sK4(sK7(initial_world))) ),
    introduced(avatar_definition,[new_symbols(naming,[spl8_94])]) ).

fof(f1903,plain,
    ( ~ spl8_10
    | ~ spl8_17
    | ~ spl8_94 ),
    inference(avatar_contradiction_clause,[],[f1902]) ).

fof(f1902,plain,
    ( $false
    | ~ spl8_10
    | ~ spl8_17
    | ~ spl8_94 ),
    inference(subsumption_resolution,[],[f1901,f956]) ).

fof(f1901,plain,
    ( sP1(sK7(initial_world))
    | ~ spl8_10
    | ~ spl8_17
    | ~ spl8_94 ),
    inference(resolution,[],[f1900,f33]) ).

fof(f33,plain,
    ! [X0] :
      ( ~ p(sK4(X0))
      | sP1(X0) ),
    inference(cnf_transformation,[],[f21]) ).

fof(f1900,plain,
    ( p(sK4(sK7(initial_world)))
    | ~ spl8_10
    | ~ spl8_17
    | ~ spl8_94 ),
    inference(subsumption_resolution,[],[f1896,f956]) ).

fof(f1896,plain,
    ( p(sK4(sK7(initial_world)))
    | sP1(sK7(initial_world))
    | ~ spl8_17
    | ~ spl8_94 ),
    inference(subsumption_resolution,[],[f1893,f1664]) ).

fof(f1664,plain,
    ( sP0(sK4(sK7(initial_world)))
    | ~ spl8_94 ),
    inference(avatar_component_clause,[],[f1663]) ).

fof(f1893,plain,
    ( ~ sP0(sK4(sK7(initial_world)))
    | p(sK4(sK7(initial_world)))
    | sP1(sK7(initial_world))
    | ~ spl8_17 ),
    inference(resolution,[],[f1849,f32]) ).

fof(f1849,plain,
    ( ! [X3] :
        ( ~ reachable(sK7(initial_world),X3)
        | ~ sP0(X3)
        | p(X3) )
    | ~ spl8_17 ),
    inference(resolution,[],[f196,f473]) ).

fof(f473,plain,
    ( reachable(initial_world,sK7(initial_world))
    | ~ spl8_17 ),
    inference(avatar_component_clause,[],[f472]) ).

fof(f472,plain,
    ( spl8_17
  <=> reachable(initial_world,sK7(initial_world)) ),
    introduced(avatar_definition,[new_symbols(naming,[spl8_17])]) ).

fof(f196,plain,
    ! [X0,X1] :
      ( ~ reachable(initial_world,X1)
      | ~ sP0(X0)
      | ~ reachable(X1,X0)
      | p(X0) ),
    inference(resolution,[],[f193,f44]) ).

fof(f193,plain,
    ! [X2] :
      ( ~ reachable(initial_world,X2)
      | p(X2)
      | ~ sP0(X2) ),
    inference(subsumption_resolution,[],[f190,f111]) ).

fof(f111,plain,
    ! [X0] :
      ( sP1(X0)
      | ~ sP0(X0)
      | p(X0) ),
    inference(resolution,[],[f76,f43]) ).

fof(f43,plain,
    ! [X0] : reachable(X0,X0),
    inference(cnf_transformation,[],[f1]) ).

fof(f1,axiom,
    ! [X0] : reachable(X0,X0),
    file('/export/starexec/sandbox2/tmp/tmp.CcLt35AU1a/Vampire---4.8_32712',reflexivity_of_reachable) ).

fof(f76,plain,
    ! [X6,X7] :
      ( ~ reachable(X7,X6)
      | p(X6)
      | ~ sP0(X7)
      | sP1(X6) ),
    inference(subsumption_resolution,[],[f70,f35]) ).

fof(f35,plain,
    ! [X0] :
      ( ~ q(sK3(X0))
      | sP1(X0) ),
    inference(cnf_transformation,[],[f21]) ).

fof(f70,plain,
    ! [X6,X7] :
      ( q(sK3(X6))
      | p(X6)
      | ~ reachable(X7,X6)
      | ~ sP0(X7)
      | sP1(X6) ),
    inference(resolution,[],[f36,f34]) ).

fof(f34,plain,
    ! [X0] :
      ( reachable(X0,sK3(X0))
      | sP1(X0) ),
    inference(cnf_transformation,[],[f21]) ).

fof(f190,plain,
    ! [X2] :
      ( p(X2)
      | ~ reachable(initial_world,X2)
      | ~ sP1(X2)
      | ~ sP0(X2) ),
    inference(duplicate_literal_removal,[],[f187]) ).

fof(f187,plain,
    ! [X2] :
      ( p(X2)
      | ~ reachable(initial_world,X2)
      | ~ sP1(X2)
      | ~ sP0(X2)
      | ~ reachable(initial_world,X2) ),
    inference(resolution,[],[f185,f136]) ).

fof(f136,plain,
    ! [X7] :
      ( sP0(sK7(X7))
      | ~ sP0(X7)
      | ~ reachable(initial_world,X7) ),
    inference(resolution,[],[f130,f41]) ).

fof(f41,plain,
    ! [X0] :
      ( reachable(X0,sK7(X0))
      | ~ reachable(initial_world,X0) ),
    inference(cnf_transformation,[],[f28]) ).

fof(f28,plain,
    ! [X0] :
      ( ( sP2(sK7(X0))
        & reachable(X0,sK7(X0)) )
      | ~ reachable(initial_world,X0) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK7])],[f13,f27]) ).

fof(f27,plain,
    ! [X0] :
      ( ? [X1] :
          ( sP2(X1)
          & reachable(X0,X1) )
     => ( sP2(sK7(X0))
        & reachable(X0,sK7(X0)) ) ),
    introduced(choice_axiom,[]) ).

fof(f13,plain,
    ! [X0] :
      ( ? [X1] :
          ( sP2(X1)
          & reachable(X0,X1) )
      | ~ reachable(initial_world,X0) ),
    inference(definition_folding,[],[f7,f12,f11,f10]) ).

fof(f7,plain,
    ! [X0] :
      ( ? [X1] :
          ( ( ! [X2] :
                ( ! [X3] :
                    ( q(X3)
                    | ~ reachable(X2,X3) )
                | p(X2)
                | ~ reachable(X1,X2) )
          <~> ( ! [X4] :
                  ( q(X4)
                  | ~ reachable(X1,X4) )
              | ! [X5] :
                  ( p(X5)
                  | ~ reachable(X1,X5) ) ) )
          & reachable(X0,X1) )
      | ~ reachable(initial_world,X0) ),
    inference(flattening,[],[f6]) ).

fof(f6,plain,
    ! [X0] :
      ( ? [X1] :
          ( ( ! [X2] :
                ( ! [X3] :
                    ( q(X3)
                    | ~ reachable(X2,X3) )
                | p(X2)
                | ~ reachable(X1,X2) )
          <~> ( ! [X4] :
                  ( q(X4)
                  | ~ reachable(X1,X4) )
              | ! [X5] :
                  ( p(X5)
                  | ~ reachable(X1,X5) ) ) )
          & reachable(X0,X1) )
      | ~ reachable(initial_world,X0) ),
    inference(ennf_transformation,[],[f5]) ).

fof(f5,plain,
    ~ ? [X0] :
        ( ! [X1] :
            ( reachable(X0,X1)
           => ( ! [X2] :
                  ( reachable(X1,X2)
                 => ( ! [X3] :
                        ( reachable(X2,X3)
                       => q(X3) )
                    | p(X2) ) )
            <=> ( ! [X4] :
                    ( reachable(X1,X4)
                   => q(X4) )
                | ! [X5] :
                    ( reachable(X1,X5)
                   => p(X5) ) ) ) )
        & reachable(initial_world,X0) ),
    inference(rectify,[],[f4]) ).

fof(f4,negated_conjecture,
    ~ ? [X0] :
        ( ! [X1] :
            ( reachable(X0,X1)
           => ( ! [X2] :
                  ( reachable(X1,X2)
                 => ( ! [X3] :
                        ( reachable(X2,X3)
                       => q(X3) )
                    | p(X2) ) )
            <=> ( ! [X4] :
                    ( reachable(X1,X4)
                   => q(X4) )
                | ! [X4] :
                    ( reachable(X1,X4)
                   => p(X4) ) ) ) )
        & reachable(initial_world,X0) ),
    inference(negated_conjecture,[],[f3]) ).

fof(f3,conjecture,
    ? [X0] :
      ( ! [X1] :
          ( reachable(X0,X1)
         => ( ! [X2] :
                ( reachable(X1,X2)
               => ( ! [X3] :
                      ( reachable(X2,X3)
                     => q(X3) )
                  | p(X2) ) )
          <=> ( ! [X4] :
                  ( reachable(X1,X4)
                 => q(X4) )
              | ! [X4] :
                  ( reachable(X1,X4)
                 => p(X4) ) ) ) )
      & reachable(initial_world,X0) ),
    file('/export/starexec/sandbox2/tmp/tmp.CcLt35AU1a/Vampire---4.8_32712',prove_this) ).

fof(f185,plain,
    ! [X0] :
      ( ~ sP0(sK7(X0))
      | p(X0)
      | ~ reachable(initial_world,X0)
      | ~ sP1(X0) ),
    inference(duplicate_literal_removal,[],[f184]) ).

fof(f184,plain,
    ! [X0] :
      ( ~ sP1(X0)
      | p(X0)
      | ~ reachable(initial_world,X0)
      | ~ sP0(sK7(X0))
      | ~ reachable(initial_world,X0) ),
    inference(resolution,[],[f169,f45]) ).

fof(f45,plain,
    ! [X0] :
      ( ~ sP1(sK7(X0))
      | ~ sP0(sK7(X0))
      | ~ reachable(initial_world,X0) ),
    inference(resolution,[],[f30,f42]) ).

fof(f42,plain,
    ! [X0] :
      ( sP2(sK7(X0))
      | ~ reachable(initial_world,X0) ),
    inference(cnf_transformation,[],[f28]) ).

fof(f169,plain,
    ! [X7] :
      ( sP1(sK7(X7))
      | ~ sP1(X7)
      | p(X7)
      | ~ reachable(initial_world,X7) ),
    inference(resolution,[],[f162,f41]) ).

fof(f162,plain,
    ! [X6,X7] :
      ( ~ reachable(X7,X6)
      | p(X7)
      | ~ sP1(X7)
      | sP1(X6) ),
    inference(subsumption_resolution,[],[f156,f35]) ).

fof(f156,plain,
    ! [X6,X7] :
      ( q(sK3(X6))
      | ~ sP1(X7)
      | p(X7)
      | ~ reachable(X7,X6)
      | sP1(X6) ),
    inference(resolution,[],[f57,f34]) ).

fof(f57,plain,
    ! [X2,X3,X1] :
      ( ~ reachable(X3,X2)
      | q(X2)
      | ~ sP1(X1)
      | p(X1)
      | ~ reachable(X1,X3) ),
    inference(resolution,[],[f47,f44]) ).

fof(f47,plain,
    ! [X0,X1] :
      ( ~ reachable(X0,X1)
      | p(X0)
      | q(X1)
      | ~ sP1(X0) ),
    inference(resolution,[],[f31,f43]) ).

fof(f515,plain,
    spl8_17,
    inference(avatar_contradiction_clause,[],[f514]) ).

fof(f514,plain,
    ( $false
    | spl8_17 ),
    inference(subsumption_resolution,[],[f512,f43]) ).

fof(f512,plain,
    ( ~ reachable(initial_world,initial_world)
    | spl8_17 ),
    inference(resolution,[],[f474,f41]) ).

fof(f474,plain,
    ( ~ reachable(initial_world,sK7(initial_world))
    | spl8_17 ),
    inference(avatar_component_clause,[],[f472]) ).

fof(f352,plain,
    spl8_10,
    inference(avatar_contradiction_clause,[],[f351]) ).

fof(f351,plain,
    ( $false
    | spl8_10 ),
    inference(subsumption_resolution,[],[f350,f43]) ).

fof(f350,plain,
    ( ~ reachable(initial_world,initial_world)
    | spl8_10 ),
    inference(resolution,[],[f343,f42]) ).

fof(f343,plain,
    ( ~ sP2(sK7(initial_world))
    | spl8_10 ),
    inference(avatar_component_clause,[],[f341]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.12  % Problem    : SYN548+1 : TPTP v8.1.2. Released v2.2.0.
% 0.15/0.14  % Command    : vampire --ignore_missing on --mode portfolio/casc [--schedule casc_hol_2020] -p tptp -om szs -t %d %s
% 0.15/0.35  % Computer : n006.cluster.edu
% 0.15/0.35  % Model    : x86_64 x86_64
% 0.15/0.35  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.15/0.35  % Memory   : 8042.1875MB
% 0.15/0.35  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.15/0.35  % CPULimit   : 300
% 0.15/0.35  % WCLimit    : 300
% 0.15/0.35  % DateTime   : Sat Aug 26 19:26:52 EDT 2023
% 0.15/0.35  % CPUTime    : 
% 0.15/0.35  This is a FOF_THM_RFO_NEQ problem
% 0.15/0.36  Running vampire_casc2023 --mode casc -m 16384 --cores 7 -t 300 /export/starexec/sandbox2/tmp/tmp.CcLt35AU1a/Vampire---4.8_32712
% 0.15/0.36  % (450)Running in auto input_syntax mode. Trying TPTP
% 0.21/0.42  % (453)dis-1002_1_av=off:bsr=on:cond=on:flr=on:fsr=off:gsp=on:nwc=2.0:sims=off_1218 on Vampire---4 for (1218ds/0Mi)
% 0.21/0.42  % (455)lrs+11_4:3_aac=none:add=off:amm=off:anc=none:bd=preordered:bs=on:bce=on:flr=on:fsd=off:fsr=off:fde=none:nwc=2.5:sims=off:sp=reverse_arity:tgt=full:stl=188_1106 on Vampire---4 for (1106ds/0Mi)
% 0.21/0.42  % (456)dis-1_128_add=large:amm=sco:anc=all_dependent:bs=on:bsr=on:bce=on:cond=fast:fsr=off:gsp=on:gs=on:gsem=off:lcm=predicate:lma=on:nm=32:nwc=4.0:nicw=on:sac=on:sp=weighted_frequency_692 on Vampire---4 for (692ds/0Mi)
% 0.21/0.42  % (459)ott+10_8_br=off:cond=on:fsr=off:gsp=on:nm=16:nwc=3.0:sims=off:sp=reverse_frequency:urr=on_415 on Vampire---4 for (415ds/0Mi)
% 0.21/0.42  % (460)dis+3_1024_av=off:fsr=off:gsp=on:lcm=predicate:nm=4:sos=all:sp=weighted_frequency_338 on Vampire---4 for (338ds/0Mi)
% 0.21/0.42  % (457)ott-1010_5_add=off:amm=off:anc=none:bce=on:cond=fast:flr=on:lma=on:nm=2:nwc=1.1:sp=occurrence:tgt=ground_470 on Vampire---4 for (470ds/0Mi)
% 0.21/0.44  % (451)lrs-1_7_acc=on:amm=off:anc=all:bs=on:bsr=on:cond=fast:flr=on:fsr=off:gsp=on:lcm=reverse:lma=on:msp=off:nm=0:nwc=1.2:sp=frequency:stl=188_1354 on Vampire---4 for (1354ds/0Mi)
% 0.21/0.47  % (457)First to succeed.
% 0.21/0.47  % (457)Refutation found. Thanks to Tanya!
% 0.21/0.47  % SZS status Theorem for Vampire---4
% 0.21/0.47  % SZS output start Proof for Vampire---4
% See solution above
% 0.21/0.47  % (457)------------------------------
% 0.21/0.47  % (457)Version: Vampire 4.7 (commit 05ef610bd on 2023-06-21 19:03:17 +0100)
% 0.21/0.47  % (457)Linked with Z3 4.9.1.0 6ed071b44407cf6623b8d3c0dceb2a8fb7040cee z3-4.8.4-6427-g6ed071b44
% 0.21/0.47  % (457)Termination reason: Refutation
% 0.21/0.47  
% 0.21/0.47  % (457)Memory used [KB]: 6268
% 0.21/0.47  % (457)Time elapsed: 0.053 s
% 0.21/0.47  % (457)------------------------------
% 0.21/0.47  % (457)------------------------------
% 0.21/0.47  % (450)Success in time 0.113 s
% 0.21/0.47  % Vampire---4.8 exiting
%------------------------------------------------------------------------------