TSTP Solution File: SWC220+1 by SnakeForV-SAT---1.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : SnakeForV-SAT---1.0
% Problem  : SWC220+1 : TPTP v8.1.0. Released v2.4.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : vampire --input_syntax tptp --proof tptp --output_axiom_names on --mode portfolio --schedule snake_tptp_sat --cores 0 -t %d %s

% Computer : n025.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 : Wed Aug 31 18:42:28 EDT 2022

% Result   : Theorem 1.68s 0.57s
% Output   : Refutation 1.68s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   17
%            Number of leaves      :    9
% Syntax   : Number of formulae    :   66 (  14 unt;   0 def)
%            Number of atoms       :  546 ( 109 equ)
%            Maximal formula atoms :   52 (   8 avg)
%            Number of connectives :  749 ( 269   ~; 248   |; 208   &)
%                                         (   0 <=>;  24  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   27 (   7 avg)
%            Maximal term depth    :    4 (   1 avg)
%            Number of predicates  :    6 (   4 usr;   1 prp; 0-2 aty)
%            Number of functors    :   11 (  11 usr;   8 con; 0-3 aty)
%            Number of variables   :  183 ( 101   !;  82   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f749,plain,
    $false,
    inference(subsumption_resolution,[],[f748,f724]) ).

fof(f724,plain,
    ssItem(sK14(sK15,sK16,sK17)),
    inference(subsumption_resolution,[],[f723,f716]) ).

fof(f716,plain,
    ssList(sK16),
    inference(subsumption_resolution,[],[f384,f573]) ).

fof(f573,plain,
    nil != sK12,
    inference(definition_unfolding,[],[f379,f378]) ).

fof(f378,plain,
    sK10 = sK12,
    inference(cnf_transformation,[],[f251]) ).

fof(f251,plain,
    ( ssList(sK13)
    & ! [X4] :
        ( ~ ssItem(X4)
        | ! [X5] :
            ( ! [X6] :
                ( app(app(X5,cons(X4,nil)),X6) != sK10
                | ~ ssList(X6)
                | ( memberP(X6,sK14(X4,X5,X6))
                  & memberP(X5,sK14(X4,X5,X6))
                  & leq(X4,sK14(X4,X5,X6))
                  & ~ leq(sK14(X4,X5,X6),X4)
                  & ssItem(sK14(X4,X5,X6)) ) )
            | ~ ssList(X5) ) )
    & ( ( ssItem(sK15)
        & ssList(sK16)
        & ! [X11] :
            ( ~ leq(sK15,X11)
            | leq(X11,sK15)
            | ~ ssItem(X11)
            | ~ memberP(sK16,X11)
            | ~ memberP(sK17,X11) )
        & ssList(sK17)
        & sK12 = app(app(sK16,cons(sK15,nil)),sK17) )
      | nil = sK12 )
    & sK11 = sK13
    & nil != sK10
    & sK10 = sK12
    & ssList(sK12)
    & ssList(sK11)
    & ssList(sK10) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK10,sK11,sK12,sK13,sK14,sK15,sK16,sK17])],[f216,f250,f249,f248,f247,f246,f245,f244,f243]) ).

fof(f243,plain,
    ( ? [X0] :
        ( ? [X1] :
            ( ? [X2] :
                ( ? [X3] :
                    ( ssList(X3)
                    & ! [X4] :
                        ( ~ ssItem(X4)
                        | ! [X5] :
                            ( ! [X6] :
                                ( app(app(X5,cons(X4,nil)),X6) != X0
                                | ~ ssList(X6)
                                | ? [X7] :
                                    ( memberP(X6,X7)
                                    & memberP(X5,X7)
                                    & leq(X4,X7)
                                    & ~ leq(X7,X4)
                                    & ssItem(X7) ) )
                            | ~ ssList(X5) ) )
                    & ( ? [X8] :
                          ( ssItem(X8)
                          & ? [X9] :
                              ( ssList(X9)
                              & ? [X10] :
                                  ( ! [X11] :
                                      ( ~ leq(X8,X11)
                                      | leq(X11,X8)
                                      | ~ ssItem(X11)
                                      | ~ memberP(X9,X11)
                                      | ~ memberP(X10,X11) )
                                  & ssList(X10)
                                  & app(app(X9,cons(X8,nil)),X10) = X2 ) ) )
                      | nil = X2 )
                    & X1 = X3
                    & nil != X0
                    & X0 = X2 )
                & ssList(X2) )
            & ssList(X1) )
        & ssList(X0) )
   => ( ? [X1] :
          ( ? [X2] :
              ( ? [X3] :
                  ( ssList(X3)
                  & ! [X4] :
                      ( ~ ssItem(X4)
                      | ! [X5] :
                          ( ! [X6] :
                              ( app(app(X5,cons(X4,nil)),X6) != sK10
                              | ~ ssList(X6)
                              | ? [X7] :
                                  ( memberP(X6,X7)
                                  & memberP(X5,X7)
                                  & leq(X4,X7)
                                  & ~ leq(X7,X4)
                                  & ssItem(X7) ) )
                          | ~ ssList(X5) ) )
                  & ( ? [X8] :
                        ( ssItem(X8)
                        & ? [X9] :
                            ( ssList(X9)
                            & ? [X10] :
                                ( ! [X11] :
                                    ( ~ leq(X8,X11)
                                    | leq(X11,X8)
                                    | ~ ssItem(X11)
                                    | ~ memberP(X9,X11)
                                    | ~ memberP(X10,X11) )
                                & ssList(X10)
                                & app(app(X9,cons(X8,nil)),X10) = X2 ) ) )
                    | nil = X2 )
                  & X1 = X3
                  & nil != sK10
                  & sK10 = X2 )
              & ssList(X2) )
          & ssList(X1) )
      & ssList(sK10) ) ),
    introduced(choice_axiom,[]) ).

fof(f244,plain,
    ( ? [X1] :
        ( ? [X2] :
            ( ? [X3] :
                ( ssList(X3)
                & ! [X4] :
                    ( ~ ssItem(X4)
                    | ! [X5] :
                        ( ! [X6] :
                            ( app(app(X5,cons(X4,nil)),X6) != sK10
                            | ~ ssList(X6)
                            | ? [X7] :
                                ( memberP(X6,X7)
                                & memberP(X5,X7)
                                & leq(X4,X7)
                                & ~ leq(X7,X4)
                                & ssItem(X7) ) )
                        | ~ ssList(X5) ) )
                & ( ? [X8] :
                      ( ssItem(X8)
                      & ? [X9] :
                          ( ssList(X9)
                          & ? [X10] :
                              ( ! [X11] :
                                  ( ~ leq(X8,X11)
                                  | leq(X11,X8)
                                  | ~ ssItem(X11)
                                  | ~ memberP(X9,X11)
                                  | ~ memberP(X10,X11) )
                              & ssList(X10)
                              & app(app(X9,cons(X8,nil)),X10) = X2 ) ) )
                  | nil = X2 )
                & X1 = X3
                & nil != sK10
                & sK10 = X2 )
            & ssList(X2) )
        & ssList(X1) )
   => ( ? [X2] :
          ( ? [X3] :
              ( ssList(X3)
              & ! [X4] :
                  ( ~ ssItem(X4)
                  | ! [X5] :
                      ( ! [X6] :
                          ( app(app(X5,cons(X4,nil)),X6) != sK10
                          | ~ ssList(X6)
                          | ? [X7] :
                              ( memberP(X6,X7)
                              & memberP(X5,X7)
                              & leq(X4,X7)
                              & ~ leq(X7,X4)
                              & ssItem(X7) ) )
                      | ~ ssList(X5) ) )
              & ( ? [X8] :
                    ( ssItem(X8)
                    & ? [X9] :
                        ( ssList(X9)
                        & ? [X10] :
                            ( ! [X11] :
                                ( ~ leq(X8,X11)
                                | leq(X11,X8)
                                | ~ ssItem(X11)
                                | ~ memberP(X9,X11)
                                | ~ memberP(X10,X11) )
                            & ssList(X10)
                            & app(app(X9,cons(X8,nil)),X10) = X2 ) ) )
                | nil = X2 )
              & sK11 = X3
              & nil != sK10
              & sK10 = X2 )
          & ssList(X2) )
      & ssList(sK11) ) ),
    introduced(choice_axiom,[]) ).

fof(f245,plain,
    ( ? [X2] :
        ( ? [X3] :
            ( ssList(X3)
            & ! [X4] :
                ( ~ ssItem(X4)
                | ! [X5] :
                    ( ! [X6] :
                        ( app(app(X5,cons(X4,nil)),X6) != sK10
                        | ~ ssList(X6)
                        | ? [X7] :
                            ( memberP(X6,X7)
                            & memberP(X5,X7)
                            & leq(X4,X7)
                            & ~ leq(X7,X4)
                            & ssItem(X7) ) )
                    | ~ ssList(X5) ) )
            & ( ? [X8] :
                  ( ssItem(X8)
                  & ? [X9] :
                      ( ssList(X9)
                      & ? [X10] :
                          ( ! [X11] :
                              ( ~ leq(X8,X11)
                              | leq(X11,X8)
                              | ~ ssItem(X11)
                              | ~ memberP(X9,X11)
                              | ~ memberP(X10,X11) )
                          & ssList(X10)
                          & app(app(X9,cons(X8,nil)),X10) = X2 ) ) )
              | nil = X2 )
            & sK11 = X3
            & nil != sK10
            & sK10 = X2 )
        & ssList(X2) )
   => ( ? [X3] :
          ( ssList(X3)
          & ! [X4] :
              ( ~ ssItem(X4)
              | ! [X5] :
                  ( ! [X6] :
                      ( app(app(X5,cons(X4,nil)),X6) != sK10
                      | ~ ssList(X6)
                      | ? [X7] :
                          ( memberP(X6,X7)
                          & memberP(X5,X7)
                          & leq(X4,X7)
                          & ~ leq(X7,X4)
                          & ssItem(X7) ) )
                  | ~ ssList(X5) ) )
          & ( ? [X8] :
                ( ssItem(X8)
                & ? [X9] :
                    ( ssList(X9)
                    & ? [X10] :
                        ( ! [X11] :
                            ( ~ leq(X8,X11)
                            | leq(X11,X8)
                            | ~ ssItem(X11)
                            | ~ memberP(X9,X11)
                            | ~ memberP(X10,X11) )
                        & ssList(X10)
                        & app(app(X9,cons(X8,nil)),X10) = sK12 ) ) )
            | nil = sK12 )
          & sK11 = X3
          & nil != sK10
          & sK10 = sK12 )
      & ssList(sK12) ) ),
    introduced(choice_axiom,[]) ).

fof(f246,plain,
    ( ? [X3] :
        ( ssList(X3)
        & ! [X4] :
            ( ~ ssItem(X4)
            | ! [X5] :
                ( ! [X6] :
                    ( app(app(X5,cons(X4,nil)),X6) != sK10
                    | ~ ssList(X6)
                    | ? [X7] :
                        ( memberP(X6,X7)
                        & memberP(X5,X7)
                        & leq(X4,X7)
                        & ~ leq(X7,X4)
                        & ssItem(X7) ) )
                | ~ ssList(X5) ) )
        & ( ? [X8] :
              ( ssItem(X8)
              & ? [X9] :
                  ( ssList(X9)
                  & ? [X10] :
                      ( ! [X11] :
                          ( ~ leq(X8,X11)
                          | leq(X11,X8)
                          | ~ ssItem(X11)
                          | ~ memberP(X9,X11)
                          | ~ memberP(X10,X11) )
                      & ssList(X10)
                      & app(app(X9,cons(X8,nil)),X10) = sK12 ) ) )
          | nil = sK12 )
        & sK11 = X3
        & nil != sK10
        & sK10 = sK12 )
   => ( ssList(sK13)
      & ! [X4] :
          ( ~ ssItem(X4)
          | ! [X5] :
              ( ! [X6] :
                  ( app(app(X5,cons(X4,nil)),X6) != sK10
                  | ~ ssList(X6)
                  | ? [X7] :
                      ( memberP(X6,X7)
                      & memberP(X5,X7)
                      & leq(X4,X7)
                      & ~ leq(X7,X4)
                      & ssItem(X7) ) )
              | ~ ssList(X5) ) )
      & ( ? [X8] :
            ( ssItem(X8)
            & ? [X9] :
                ( ssList(X9)
                & ? [X10] :
                    ( ! [X11] :
                        ( ~ leq(X8,X11)
                        | leq(X11,X8)
                        | ~ ssItem(X11)
                        | ~ memberP(X9,X11)
                        | ~ memberP(X10,X11) )
                    & ssList(X10)
                    & app(app(X9,cons(X8,nil)),X10) = sK12 ) ) )
        | nil = sK12 )
      & sK11 = sK13
      & nil != sK10
      & sK10 = sK12 ) ),
    introduced(choice_axiom,[]) ).

fof(f247,plain,
    ! [X4,X5,X6] :
      ( ? [X7] :
          ( memberP(X6,X7)
          & memberP(X5,X7)
          & leq(X4,X7)
          & ~ leq(X7,X4)
          & ssItem(X7) )
     => ( memberP(X6,sK14(X4,X5,X6))
        & memberP(X5,sK14(X4,X5,X6))
        & leq(X4,sK14(X4,X5,X6))
        & ~ leq(sK14(X4,X5,X6),X4)
        & ssItem(sK14(X4,X5,X6)) ) ),
    introduced(choice_axiom,[]) ).

fof(f248,plain,
    ( ? [X8] :
        ( ssItem(X8)
        & ? [X9] :
            ( ssList(X9)
            & ? [X10] :
                ( ! [X11] :
                    ( ~ leq(X8,X11)
                    | leq(X11,X8)
                    | ~ ssItem(X11)
                    | ~ memberP(X9,X11)
                    | ~ memberP(X10,X11) )
                & ssList(X10)
                & app(app(X9,cons(X8,nil)),X10) = sK12 ) ) )
   => ( ssItem(sK15)
      & ? [X9] :
          ( ssList(X9)
          & ? [X10] :
              ( ! [X11] :
                  ( ~ leq(sK15,X11)
                  | leq(X11,sK15)
                  | ~ ssItem(X11)
                  | ~ memberP(X9,X11)
                  | ~ memberP(X10,X11) )
              & ssList(X10)
              & app(app(X9,cons(sK15,nil)),X10) = sK12 ) ) ) ),
    introduced(choice_axiom,[]) ).

fof(f249,plain,
    ( ? [X9] :
        ( ssList(X9)
        & ? [X10] :
            ( ! [X11] :
                ( ~ leq(sK15,X11)
                | leq(X11,sK15)
                | ~ ssItem(X11)
                | ~ memberP(X9,X11)
                | ~ memberP(X10,X11) )
            & ssList(X10)
            & app(app(X9,cons(sK15,nil)),X10) = sK12 ) )
   => ( ssList(sK16)
      & ? [X10] :
          ( ! [X11] :
              ( ~ leq(sK15,X11)
              | leq(X11,sK15)
              | ~ ssItem(X11)
              | ~ memberP(sK16,X11)
              | ~ memberP(X10,X11) )
          & ssList(X10)
          & app(app(sK16,cons(sK15,nil)),X10) = sK12 ) ) ),
    introduced(choice_axiom,[]) ).

fof(f250,plain,
    ( ? [X10] :
        ( ! [X11] :
            ( ~ leq(sK15,X11)
            | leq(X11,sK15)
            | ~ ssItem(X11)
            | ~ memberP(sK16,X11)
            | ~ memberP(X10,X11) )
        & ssList(X10)
        & app(app(sK16,cons(sK15,nil)),X10) = sK12 )
   => ( ! [X11] :
          ( ~ leq(sK15,X11)
          | leq(X11,sK15)
          | ~ ssItem(X11)
          | ~ memberP(sK16,X11)
          | ~ memberP(sK17,X11) )
      & ssList(sK17)
      & sK12 = app(app(sK16,cons(sK15,nil)),sK17) ) ),
    introduced(choice_axiom,[]) ).

fof(f216,plain,
    ? [X0] :
      ( ? [X1] :
          ( ? [X2] :
              ( ? [X3] :
                  ( ssList(X3)
                  & ! [X4] :
                      ( ~ ssItem(X4)
                      | ! [X5] :
                          ( ! [X6] :
                              ( app(app(X5,cons(X4,nil)),X6) != X0
                              | ~ ssList(X6)
                              | ? [X7] :
                                  ( memberP(X6,X7)
                                  & memberP(X5,X7)
                                  & leq(X4,X7)
                                  & ~ leq(X7,X4)
                                  & ssItem(X7) ) )
                          | ~ ssList(X5) ) )
                  & ( ? [X8] :
                        ( ssItem(X8)
                        & ? [X9] :
                            ( ssList(X9)
                            & ? [X10] :
                                ( ! [X11] :
                                    ( ~ leq(X8,X11)
                                    | leq(X11,X8)
                                    | ~ ssItem(X11)
                                    | ~ memberP(X9,X11)
                                    | ~ memberP(X10,X11) )
                                & ssList(X10)
                                & app(app(X9,cons(X8,nil)),X10) = X2 ) ) )
                    | nil = X2 )
                  & X1 = X3
                  & nil != X0
                  & X0 = X2 )
              & ssList(X2) )
          & ssList(X1) )
      & ssList(X0) ),
    inference(flattening,[],[f215]) ).

fof(f215,plain,
    ? [X0] :
      ( ? [X1] :
          ( ? [X2] :
              ( ? [X3] :
                  ( X0 = X2
                  & ! [X4] :
                      ( ! [X5] :
                          ( ~ ssList(X5)
                          | ! [X6] :
                              ( app(app(X5,cons(X4,nil)),X6) != X0
                              | ? [X7] :
                                  ( memberP(X6,X7)
                                  & memberP(X5,X7)
                                  & ~ leq(X7,X4)
                                  & leq(X4,X7)
                                  & ssItem(X7) )
                              | ~ ssList(X6) ) )
                      | ~ ssItem(X4) )
                  & nil != X0
                  & ( nil = X2
                    | ? [X8] :
                        ( ? [X9] :
                            ( ? [X10] :
                                ( app(app(X9,cons(X8,nil)),X10) = X2
                                & ! [X11] :
                                    ( ~ leq(X8,X11)
                                    | leq(X11,X8)
                                    | ~ ssItem(X11)
                                    | ~ memberP(X9,X11)
                                    | ~ memberP(X10,X11) )
                                & ssList(X10) )
                            & ssList(X9) )
                        & ssItem(X8) ) )
                  & X1 = X3
                  & ssList(X3) )
              & ssList(X2) )
          & ssList(X1) )
      & ssList(X0) ),
    inference(ennf_transformation,[],[f97]) ).

fof(f97,negated_conjecture,
    ~ ! [X0] :
        ( ssList(X0)
       => ! [X1] :
            ( ssList(X1)
           => ! [X2] :
                ( ssList(X2)
               => ! [X3] :
                    ( ssList(X3)
                   => ( X0 != X2
                      | ? [X4] :
                          ( ? [X5] :
                              ( ssList(X5)
                              & ? [X6] :
                                  ( app(app(X5,cons(X4,nil)),X6) = X0
                                  & ! [X7] :
                                      ( ssItem(X7)
                                     => ( ~ memberP(X6,X7)
                                        | ~ memberP(X5,X7)
                                        | leq(X7,X4)
                                        | ~ leq(X4,X7) ) )
                                  & ssList(X6) ) )
                          & ssItem(X4) )
                      | nil = X0
                      | ( nil != X2
                        & ! [X8] :
                            ( ssItem(X8)
                           => ! [X9] :
                                ( ssList(X9)
                               => ! [X10] :
                                    ( ssList(X10)
                                   => ( app(app(X9,cons(X8,nil)),X10) != X2
                                      | ? [X11] :
                                          ( ~ leq(X11,X8)
                                          & memberP(X10,X11)
                                          & memberP(X9,X11)
                                          & leq(X8,X11)
                                          & ssItem(X11) ) ) ) ) ) )
                      | X1 != X3 ) ) ) ) ),
    inference(negated_conjecture,[],[f96]) ).

fof(f96,conjecture,
    ! [X0] :
      ( ssList(X0)
     => ! [X1] :
          ( ssList(X1)
         => ! [X2] :
              ( ssList(X2)
             => ! [X3] :
                  ( ssList(X3)
                 => ( X0 != X2
                    | ? [X4] :
                        ( ? [X5] :
                            ( ssList(X5)
                            & ? [X6] :
                                ( app(app(X5,cons(X4,nil)),X6) = X0
                                & ! [X7] :
                                    ( ssItem(X7)
                                   => ( ~ memberP(X6,X7)
                                      | ~ memberP(X5,X7)
                                      | leq(X7,X4)
                                      | ~ leq(X4,X7) ) )
                                & ssList(X6) ) )
                        & ssItem(X4) )
                    | nil = X0
                    | ( nil != X2
                      & ! [X8] :
                          ( ssItem(X8)
                         => ! [X9] :
                              ( ssList(X9)
                             => ! [X10] :
                                  ( ssList(X10)
                                 => ( app(app(X9,cons(X8,nil)),X10) != X2
                                    | ? [X11] :
                                        ( ~ leq(X11,X8)
                                        & memberP(X10,X11)
                                        & memberP(X9,X11)
                                        & leq(X8,X11)
                                        & ssItem(X11) ) ) ) ) ) )
                    | X1 != X3 ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',co1) ).

fof(f379,plain,
    nil != sK10,
    inference(cnf_transformation,[],[f251]) ).

fof(f384,plain,
    ( nil = sK12
    | ssList(sK16) ),
    inference(cnf_transformation,[],[f251]) ).

fof(f723,plain,
    ( ~ ssList(sK16)
    | ssItem(sK14(sK15,sK16,sK17)) ),
    inference(subsumption_resolution,[],[f722,f719]) ).

fof(f719,plain,
    ssItem(sK15),
    inference(subsumption_resolution,[],[f385,f573]) ).

fof(f385,plain,
    ( ssItem(sK15)
    | nil = sK12 ),
    inference(cnf_transformation,[],[f251]) ).

fof(f722,plain,
    ( ssItem(sK14(sK15,sK16,sK17))
    | ~ ssItem(sK15)
    | ~ ssList(sK16) ),
    inference(subsumption_resolution,[],[f721,f717]) ).

fof(f717,plain,
    ssList(sK17),
    inference(subsumption_resolution,[],[f382,f573]) ).

fof(f382,plain,
    ( nil = sK12
    | ssList(sK17) ),
    inference(cnf_transformation,[],[f251]) ).

fof(f721,plain,
    ( ssItem(sK14(sK15,sK16,sK17))
    | ~ ssList(sK17)
    | ~ ssItem(sK15)
    | ~ ssList(sK16) ),
    inference(trivial_inequality_removal,[],[f720]) ).

fof(f720,plain,
    ( ~ ssItem(sK15)
    | ssItem(sK14(sK15,sK16,sK17))
    | sK12 != sK12
    | ~ ssList(sK16)
    | ~ ssList(sK17) ),
    inference(superposition,[],[f572,f713]) ).

fof(f713,plain,
    sK12 = app(app(sK16,cons(sK15,nil)),sK17),
    inference(subsumption_resolution,[],[f381,f573]) ).

fof(f381,plain,
    ( sK12 = app(app(sK16,cons(sK15,nil)),sK17)
    | nil = sK12 ),
    inference(cnf_transformation,[],[f251]) ).

fof(f572,plain,
    ! [X6,X4,X5] :
      ( app(app(X5,cons(X4,nil)),X6) != sK12
      | ssItem(sK14(X4,X5,X6))
      | ~ ssList(X6)
      | ~ ssItem(X4)
      | ~ ssList(X5) ),
    inference(definition_unfolding,[],[f386,f378]) ).

fof(f386,plain,
    ! [X6,X4,X5] :
      ( ~ ssItem(X4)
      | app(app(X5,cons(X4,nil)),X6) != sK10
      | ~ ssList(X6)
      | ssItem(sK14(X4,X5,X6))
      | ~ ssList(X5) ),
    inference(cnf_transformation,[],[f251]) ).

fof(f748,plain,
    ~ ssItem(sK14(sK15,sK16,sK17)),
    inference(subsumption_resolution,[],[f747,f734]) ).

fof(f734,plain,
    memberP(sK16,sK14(sK15,sK16,sK17)),
    inference(subsumption_resolution,[],[f733,f719]) ).

fof(f733,plain,
    ( ~ ssItem(sK15)
    | memberP(sK16,sK14(sK15,sK16,sK17)) ),
    inference(subsumption_resolution,[],[f732,f716]) ).

fof(f732,plain,
    ( ~ ssList(sK16)
    | memberP(sK16,sK14(sK15,sK16,sK17))
    | ~ ssItem(sK15) ),
    inference(subsumption_resolution,[],[f731,f717]) ).

fof(f731,plain,
    ( ~ ssList(sK17)
    | ~ ssList(sK16)
    | ~ ssItem(sK15)
    | memberP(sK16,sK14(sK15,sK16,sK17)) ),
    inference(trivial_inequality_removal,[],[f730]) ).

fof(f730,plain,
    ( memberP(sK16,sK14(sK15,sK16,sK17))
    | sK12 != sK12
    | ~ ssList(sK17)
    | ~ ssList(sK16)
    | ~ ssItem(sK15) ),
    inference(superposition,[],[f569,f713]) ).

fof(f569,plain,
    ! [X6,X4,X5] :
      ( app(app(X5,cons(X4,nil)),X6) != sK12
      | ~ ssList(X5)
      | memberP(X5,sK14(X4,X5,X6))
      | ~ ssList(X6)
      | ~ ssItem(X4) ),
    inference(definition_unfolding,[],[f389,f378]) ).

fof(f389,plain,
    ! [X6,X4,X5] :
      ( ~ ssItem(X4)
      | app(app(X5,cons(X4,nil)),X6) != sK10
      | ~ ssList(X6)
      | memberP(X5,sK14(X4,X5,X6))
      | ~ ssList(X5) ),
    inference(cnf_transformation,[],[f251]) ).

fof(f747,plain,
    ( ~ memberP(sK16,sK14(sK15,sK16,sK17))
    | ~ ssItem(sK14(sK15,sK16,sK17)) ),
    inference(subsumption_resolution,[],[f746,f729]) ).

fof(f729,plain,
    memberP(sK17,sK14(sK15,sK16,sK17)),
    inference(subsumption_resolution,[],[f728,f717]) ).

fof(f728,plain,
    ( ~ ssList(sK17)
    | memberP(sK17,sK14(sK15,sK16,sK17)) ),
    inference(subsumption_resolution,[],[f727,f716]) ).

fof(f727,plain,
    ( memberP(sK17,sK14(sK15,sK16,sK17))
    | ~ ssList(sK16)
    | ~ ssList(sK17) ),
    inference(subsumption_resolution,[],[f726,f719]) ).

fof(f726,plain,
    ( ~ ssItem(sK15)
    | ~ ssList(sK17)
    | memberP(sK17,sK14(sK15,sK16,sK17))
    | ~ ssList(sK16) ),
    inference(trivial_inequality_removal,[],[f725]) ).

fof(f725,plain,
    ( ~ ssList(sK16)
    | memberP(sK17,sK14(sK15,sK16,sK17))
    | ~ ssItem(sK15)
    | sK12 != sK12
    | ~ ssList(sK17) ),
    inference(superposition,[],[f568,f713]) ).

fof(f568,plain,
    ! [X6,X4,X5] :
      ( app(app(X5,cons(X4,nil)),X6) != sK12
      | ~ ssItem(X4)
      | ~ ssList(X6)
      | memberP(X6,sK14(X4,X5,X6))
      | ~ ssList(X5) ),
    inference(definition_unfolding,[],[f390,f378]) ).

fof(f390,plain,
    ! [X6,X4,X5] :
      ( ~ ssItem(X4)
      | app(app(X5,cons(X4,nil)),X6) != sK10
      | ~ ssList(X6)
      | memberP(X6,sK14(X4,X5,X6))
      | ~ ssList(X5) ),
    inference(cnf_transformation,[],[f251]) ).

fof(f746,plain,
    ( ~ memberP(sK17,sK14(sK15,sK16,sK17))
    | ~ ssItem(sK14(sK15,sK16,sK17))
    | ~ memberP(sK16,sK14(sK15,sK16,sK17)) ),
    inference(subsumption_resolution,[],[f745,f744]) ).

fof(f744,plain,
    ~ leq(sK14(sK15,sK16,sK17),sK15),
    inference(subsumption_resolution,[],[f743,f719]) ).

fof(f743,plain,
    ( ~ ssItem(sK15)
    | ~ leq(sK14(sK15,sK16,sK17),sK15) ),
    inference(subsumption_resolution,[],[f742,f717]) ).

fof(f742,plain,
    ( ~ ssList(sK17)
    | ~ leq(sK14(sK15,sK16,sK17),sK15)
    | ~ ssItem(sK15) ),
    inference(subsumption_resolution,[],[f741,f716]) ).

fof(f741,plain,
    ( ~ ssList(sK16)
    | ~ leq(sK14(sK15,sK16,sK17),sK15)
    | ~ ssItem(sK15)
    | ~ ssList(sK17) ),
    inference(trivial_inequality_removal,[],[f740]) ).

fof(f740,plain,
    ( ~ ssList(sK16)
    | ~ ssList(sK17)
    | ~ ssItem(sK15)
    | ~ leq(sK14(sK15,sK16,sK17),sK15)
    | sK12 != sK12 ),
    inference(superposition,[],[f571,f713]) ).

fof(f571,plain,
    ! [X6,X4,X5] :
      ( app(app(X5,cons(X4,nil)),X6) != sK12
      | ~ ssItem(X4)
      | ~ ssList(X5)
      | ~ leq(sK14(X4,X5,X6),X4)
      | ~ ssList(X6) ),
    inference(definition_unfolding,[],[f387,f378]) ).

fof(f387,plain,
    ! [X6,X4,X5] :
      ( ~ ssItem(X4)
      | app(app(X5,cons(X4,nil)),X6) != sK10
      | ~ ssList(X6)
      | ~ leq(sK14(X4,X5,X6),X4)
      | ~ ssList(X5) ),
    inference(cnf_transformation,[],[f251]) ).

fof(f745,plain,
    ( leq(sK14(sK15,sK16,sK17),sK15)
    | ~ ssItem(sK14(sK15,sK16,sK17))
    | ~ memberP(sK17,sK14(sK15,sK16,sK17))
    | ~ memberP(sK16,sK14(sK15,sK16,sK17)) ),
    inference(resolution,[],[f739,f715]) ).

fof(f715,plain,
    ! [X11] :
      ( ~ leq(sK15,X11)
      | ~ memberP(sK17,X11)
      | ~ memberP(sK16,X11)
      | leq(X11,sK15)
      | ~ ssItem(X11) ),
    inference(subsumption_resolution,[],[f383,f573]) ).

fof(f383,plain,
    ! [X11] :
      ( nil = sK12
      | leq(X11,sK15)
      | ~ ssItem(X11)
      | ~ leq(sK15,X11)
      | ~ memberP(sK16,X11)
      | ~ memberP(sK17,X11) ),
    inference(cnf_transformation,[],[f251]) ).

fof(f739,plain,
    leq(sK15,sK14(sK15,sK16,sK17)),
    inference(subsumption_resolution,[],[f738,f719]) ).

fof(f738,plain,
    ( ~ ssItem(sK15)
    | leq(sK15,sK14(sK15,sK16,sK17)) ),
    inference(subsumption_resolution,[],[f737,f716]) ).

fof(f737,plain,
    ( leq(sK15,sK14(sK15,sK16,sK17))
    | ~ ssList(sK16)
    | ~ ssItem(sK15) ),
    inference(subsumption_resolution,[],[f736,f717]) ).

fof(f736,plain,
    ( ~ ssList(sK17)
    | leq(sK15,sK14(sK15,sK16,sK17))
    | ~ ssItem(sK15)
    | ~ ssList(sK16) ),
    inference(trivial_inequality_removal,[],[f735]) ).

fof(f735,plain,
    ( ~ ssItem(sK15)
    | sK12 != sK12
    | leq(sK15,sK14(sK15,sK16,sK17))
    | ~ ssList(sK16)
    | ~ ssList(sK17) ),
    inference(superposition,[],[f570,f713]) ).

fof(f570,plain,
    ! [X6,X4,X5] :
      ( app(app(X5,cons(X4,nil)),X6) != sK12
      | ~ ssList(X6)
      | leq(X4,sK14(X4,X5,X6))
      | ~ ssList(X5)
      | ~ ssItem(X4) ),
    inference(definition_unfolding,[],[f388,f378]) ).

fof(f388,plain,
    ! [X6,X4,X5] :
      ( ~ ssItem(X4)
      | app(app(X5,cons(X4,nil)),X6) != sK10
      | ~ ssList(X6)
      | leq(X4,sK14(X4,X5,X6))
      | ~ ssList(X5) ),
    inference(cnf_transformation,[],[f251]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.12  % Problem    : SWC220+1 : TPTP v8.1.0. Released v2.4.0.
% 0.12/0.13  % Command    : vampire --input_syntax tptp --proof tptp --output_axiom_names on --mode portfolio --schedule snake_tptp_sat --cores 0 -t %d %s
% 0.12/0.34  % Computer : n025.cluster.edu
% 0.12/0.34  % Model    : x86_64 x86_64
% 0.12/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.34  % Memory   : 8042.1875MB
% 0.12/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.34  % CPULimit   : 300
% 0.12/0.34  % WCLimit    : 300
% 0.12/0.34  % DateTime   : Tue Aug 30 18:44:30 EDT 2022
% 0.12/0.34  % CPUTime    : 
% 0.19/0.50  % (20518)ott-1_1:6_av=off:cond=on:fsr=off:nwc=3.0:i=51:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/51Mi)
% 0.19/0.50  % (20526)fmb+10_1:1_bce=on:i=59:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/59Mi)
% 0.19/0.51  % (20516)dis+10_1:1_fsd=on:sp=occurrence:i=7:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/7Mi)
% 0.19/0.51  % (20510)ott+10_1:32_abs=on:br=off:urr=ec_only:i=50:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/50Mi)
% 0.19/0.51  % (20527)ott+10_1:1_tgt=ground:i=100:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/100Mi)
% 0.19/0.51  % (20535)ott+10_1:5_bd=off:tgt=full:i=500:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/500Mi)
% 0.19/0.52  % (20539)ott+10_7:2_awrs=decay:awrsf=8:bd=preordered:drc=off:fd=preordered:fde=unused:fsr=off:slsq=on:slsqc=2:slsqr=5,8:sp=const_min:spb=units:to=lpo:i=355:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/355Mi)
% 0.19/0.52  % (20531)ott+3_1:1_gsp=on:lcm=predicate:i=138:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/138Mi)
% 0.19/0.52  % (20519)ott+2_1:1_fsr=off:gsp=on:i=50:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/50Mi)
% 0.19/0.52  % (20537)ott+11_2:3_av=off:fde=unused:nwc=5.0:tgt=ground:i=177:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/177Mi)
% 0.19/0.52  % (20522)ott+10_1:5_bd=off:tgt=full:i=99:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/99Mi)
% 0.19/0.53  % (20529)ott+4_1:1_av=off:bd=off:nwc=5.0:rp=on:s2a=on:s2at=2.0:slsq=on:slsqc=2:slsql=off:slsqr=1,2:sp=frequency:i=100:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/100Mi)
% 0.19/0.53  % (20512)ott+10_1:32_bd=off:fsr=off:newcnf=on:tgt=full:i=51:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/51Mi)
% 0.19/0.53  % (20509)fmb+10_1:1_bce=on:fmbsr=1.5:nm=4:skr=on:i=191324:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/191324Mi)
% 0.19/0.53  % (20511)ott+4_1:1_av=off:bd=off:nwc=5.0:s2a=on:s2at=2.0:slsq=on:slsqc=2:slsql=off:slsqr=1,2:sp=frequency:i=37:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/37Mi)
% 0.19/0.53  % (20513)ott+33_1:4_s2a=on:tgt=ground:i=51:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/51Mi)
% 0.19/0.53  % (20520)ott+10_1:32_bd=off:fsr=off:newcnf=on:tgt=full:i=100:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/100Mi)
% 0.19/0.53  % (20530)ott+10_1:8_bsd=on:fsd=on:lcm=predicate:nwc=5.0:s2a=on:s2at=1.5:spb=goal_then_units:i=176:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/176Mi)
% 0.19/0.53  % (20514)dis+34_1:32_abs=on:add=off:bsr=on:gsp=on:sp=weighted_frequency:i=48:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/48Mi)
% 0.19/0.53  % (20517)dis+2_1:64_add=large:bce=on:bd=off:i=2:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/2Mi)
% 0.19/0.53  % (20515)fmb+10_1:1_fmbsr=2.0:nm=4:skr=on:i=51:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/51Mi)
% 0.19/0.53  % (20517)Instruction limit reached!
% 0.19/0.53  % (20517)------------------------------
% 0.19/0.53  % (20517)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 0.19/0.53  % (20517)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 0.19/0.53  % (20517)Termination reason: Unknown
% 0.19/0.53  % (20517)Termination phase: Preprocessing 3
% 0.19/0.53  
% 0.19/0.53  % (20517)Memory used [KB]: 1151
% 0.19/0.53  % (20517)Time elapsed: 0.004 s
% 0.19/0.53  % (20517)Instructions burned: 3 (million)
% 0.19/0.53  % (20517)------------------------------
% 0.19/0.53  % (20517)------------------------------
% 0.19/0.53  % (20516)Instruction limit reached!
% 0.19/0.53  % (20516)------------------------------
% 0.19/0.53  % (20516)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 0.19/0.53  % (20516)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 0.19/0.53  % (20516)Termination reason: Unknown
% 0.19/0.53  % (20516)Termination phase: Equality resolution with deletion
% 0.19/0.53  
% 0.19/0.53  % (20516)Memory used [KB]: 1279
% 0.19/0.53  % (20516)Time elapsed: 0.006 s
% 0.19/0.53  % (20516)Instructions burned: 9 (million)
% 0.19/0.53  % (20516)------------------------------
% 0.19/0.53  % (20516)------------------------------
% 0.19/0.53  % (20536)ins+10_1:1_awrs=decay:awrsf=30:bsr=unit_only:foolp=on:igrr=8/457:igs=10:igwr=on:nwc=1.5:sp=weighted_frequency:to=lpo:uhcvi=on:i=68:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/68Mi)
% 0.19/0.54  % (20533)ott+11_1:1_drc=off:nwc=5.0:slsq=on:slsqc=1:spb=goal_then_units:to=lpo:i=467:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/467Mi)
% 0.19/0.54  % (20524)ott+11_2:3_av=off:fde=unused:nwc=5.0:tgt=ground:i=75:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/75Mi)
% 0.19/0.54  % (20532)dis+21_1:1_av=off:er=filter:slsq=on:slsqc=0:slsqr=1,1:sp=frequency:to=lpo:i=498:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/498Mi)
% 0.19/0.54  % (20521)ott+10_1:28_bd=off:bs=on:tgt=ground:i=101:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/101Mi)
% 0.19/0.54  % (20534)ott+10_1:1_kws=precedence:tgt=ground:i=482:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/482Mi)
% 0.19/0.54  % (20523)ins+10_1:1_awrs=decay:awrsf=30:bsr=unit_only:foolp=on:igrr=8/457:igs=10:igwr=on:nwc=1.5:sp=weighted_frequency:to=lpo:uhcvi=on:i=68:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/68Mi)
% 0.19/0.54  % (20538)ott+33_1:4_s2a=on:tgt=ground:i=439:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/439Mi)
% 0.19/0.55  % (20525)dis+34_1:32_abs=on:add=off:bsr=on:gsp=on:sp=weighted_frequency:i=99:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/99Mi)
% 0.19/0.55  % (20529)First to succeed.
% 0.19/0.55  TRYING [1]
% 0.19/0.56  TRYING [1]
% 0.19/0.56  TRYING [2]
% 0.19/0.56  TRYING [2]
% 0.19/0.56  TRYING [1]
% 1.68/0.57  TRYING [2]
% 1.68/0.57  % (20529)Refutation found. Thanks to Tanya!
% 1.68/0.57  % SZS status Theorem for theBenchmark
% 1.68/0.57  % SZS output start Proof for theBenchmark
% See solution above
% 1.68/0.57  % (20529)------------------------------
% 1.68/0.57  % (20529)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 1.68/0.57  % (20529)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 1.68/0.57  % (20529)Termination reason: Refutation
% 1.68/0.57  
% 1.68/0.57  % (20529)Memory used [KB]: 1535
% 1.68/0.57  % (20529)Time elapsed: 0.160 s
% 1.68/0.57  % (20529)Instructions burned: 17 (million)
% 1.68/0.57  % (20529)------------------------------
% 1.68/0.57  % (20529)------------------------------
% 1.68/0.57  % (20508)Success in time 0.218 s
%------------------------------------------------------------------------------