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iProver---3.9.4.THM-CRf.s

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%------------------------------------------------------------------------------
% File     : iProver---3.9.4
% Problem  : SWC240+1 : TPTP v9.3.1. Released v2.4.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM

% Computer : n009.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8046.5625MB
% OS       : Linux 6.8.0-71-generic
% CPULimit : 300s
% WCLimit  : 300s
% DateTime : Fri Sep 25 03:08:58 PM UTC 2026

% Result   : Theorem 21.55s 4.16s
% Output   : CNFRefutation 21.55s
% Verified : 
% SZS Type : ERROR: Analysing output (Could not find formula named f224ERROR: Could not build tree for root c_53553ERROR: MakeTreeStats fails)

% Comments : 
%------------------------------------------------------------------------------
fof(f16,axiom,
    ! [X0] :
      ( ssList(X0)
     => ! [X1] :
          ( ssItem(X1)
         => ssList(cons(X1,X0)) ) ),
    file('/export/starexec/sandbox/benchmark/Axioms/SWC001+0.ax',ax16) ).

fof(f17,axiom,
    ssList(nil),
    file('/export/starexec/sandbox/benchmark/Axioms/SWC001+0.ax',ax17) ).

fof(f20,axiom,
    ! [X0] :
      ( ssList(X0)
     => ( ? [X1] :
            ( ? [X2] :
                ( cons(X2,X1) = X0
                & ssItem(X2) )
            & ssList(X1) )
        | nil = X0 ) ),
    file('/export/starexec/sandbox/benchmark/Axioms/SWC001+0.ax',ax20) ).

fof(f28,axiom,
    ! [X0] :
      ( ssList(X0)
     => app(nil,X0) = X0 ),
    file('/export/starexec/sandbox/benchmark/Axioms/SWC001+0.ax',ax28) ).

fof(f81,axiom,
    ! [X0] :
      ( ssList(X0)
     => ! [X1] :
          ( ssItem(X1)
         => cons(X1,X0) = app(cons(X1,nil),X0) ) ),
    file('/export/starexec/sandbox/benchmark/Axioms/SWC001+0.ax',ax81) ).

fof(f83,axiom,
    ! [X0] :
      ( ssList(X0)
     => ! [X1] :
          ( ssList(X1)
         => ( nil = app(X0,X1)
          <=> ( nil = X0
              & nil = X1 ) ) ) ),
    file('/export/starexec/sandbox/benchmark/Axioms/SWC001+0.ax',ax83) ).

fof(f93,axiom,
    ! [X0] :
      ( ssItem(X0)
     => ! [X1] :
          ( ssItem(X1)
         => ( lt(X0,X1)
          <=> ( leq(X0,X1)
              & X0 != X1 ) ) ) ),
    file('/export/starexec/sandbox/benchmark/Axioms/SWC001+0.ax',ax93) ).

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

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

fof(f98,plain,
    ? [X0] :
      ( ssList(X0)
      & ? [X1] :
          ( ssList(X1)
          & ? [X2] :
              ( ssList(X2)
              & ? [X3] :
                  ( ssList(X3)
                  & ? [X8] :
                      ( ssItem(X8)
                      & ! [X9] :
                          ( ~ memberP(X2,X9)
                          | X8 = X9
                          | ~ ssItem(X9) ) )
                  & ! [X4] :
                      ( ! [X5] :
                          ( ! [X6] :
                              ( ? [X7] :
                                  ( ssItem(X7)
                                  & ~ leq(X4,X7)
                                  & lt(X4,X7)
                                  & memberP(X6,X7)
                                  & memberP(X5,X7) )
                              | app(app(X5,cons(X4,nil)),X6) != X0
                              | ~ ssList(X6) )
                          | ~ ssList(X5) )
                      | ~ ssItem(X4) )
                  & nil != X0
                  & X0 = X2
                  & X1 = X3 ) ) ) ),
    inference(ennf_transformation,[],[f97]) ).

fof(f99,plain,
    ? [X0] :
      ( ssList(X0)
      & ? [X1] :
          ( ssList(X1)
          & ? [X2] :
              ( ssList(X2)
              & ? [X3] :
                  ( ssList(X3)
                  & ? [X8] :
                      ( ssItem(X8)
                      & ! [X9] :
                          ( ~ memberP(X2,X9)
                          | X8 = X9
                          | ~ ssItem(X9) ) )
                  & ! [X4] :
                      ( ! [X5] :
                          ( ! [X6] :
                              ( ? [X7] :
                                  ( ssItem(X7)
                                  & ~ leq(X4,X7)
                                  & lt(X4,X7)
                                  & memberP(X6,X7)
                                  & memberP(X5,X7) )
                              | app(app(X5,cons(X4,nil)),X6) != X0
                              | ~ ssList(X6) )
                          | ~ ssList(X5) )
                      | ~ ssItem(X4) )
                  & nil != X0
                  & X0 = X2
                  & X1 = X3 ) ) ) ),
    inference(flattening,[],[f98]) ).

fof(f100,plain,
    ! [X0] :
      ( ~ ssList(X0)
      | ! [X1] :
          ( ~ ssItem(X1)
          | cons(X1,X0) = app(cons(X1,nil),X0) ) ),
    inference(ennf_transformation,[],[f81]) ).

fof(f103,plain,
    ! [X0] :
      ( ~ ssList(X0)
      | ? [X1] :
          ( ? [X2] :
              ( cons(X2,X1) = X0
              & ssItem(X2) )
          & ssList(X1) )
      | nil = X0 ),
    inference(ennf_transformation,[],[f20]) ).

fof(f104,plain,
    ! [X0] :
      ( ~ ssList(X0)
      | ? [X1] :
          ( ? [X2] :
              ( cons(X2,X1) = X0
              & ssItem(X2) )
          & ssList(X1) )
      | nil = X0 ),
    inference(flattening,[],[f103]) ).

fof(f108,plain,
    ! [X0] :
      ( ~ ssList(X0)
      | ! [X1] :
          ( ~ ssItem(X1)
          | ssList(cons(X1,X0)) ) ),
    inference(ennf_transformation,[],[f16]) ).

fof(f110,plain,
    ! [X0] :
      ( ~ ssList(X0)
      | ! [X1] :
          ( ~ ssList(X1)
          | ( nil = app(X0,X1)
          <=> ( nil = X0
              & nil = X1 ) ) ) ),
    inference(ennf_transformation,[],[f83]) ).

fof(f116,plain,
    ! [X0] :
      ( ~ ssList(X0)
      | app(nil,X0) = X0 ),
    inference(ennf_transformation,[],[f28]) ).

fof(f122,plain,
    ! [X0] :
      ( ~ ssItem(X0)
      | ! [X1] :
          ( ~ ssItem(X1)
          | ( lt(X0,X1)
          <=> ( leq(X0,X1)
              & X0 != X1 ) ) ) ),
    inference(ennf_transformation,[],[f93]) ).

fof(f137,plain,
    ( ssList(sK0)
    & ssList(sK1)
    & ssList(sK2)
    & ssList(sK3)
    & ssItem(sK5)
    & ! [X9] :
        ( ~ memberP(sK2,X9)
        | sK5 = X9
        | ~ ssItem(X9) )
    & ! [X4] :
        ( ! [X5] :
            ( ! [X6] :
                ( ( ssItem(sK4(X4,X5,X6))
                  & ~ leq(X4,sK4(X4,X5,X6))
                  & lt(X4,sK4(X4,X5,X6))
                  & memberP(X6,sK4(X4,X5,X6))
                  & memberP(X5,sK4(X4,X5,X6)) )
                | app(app(X5,cons(X4,nil)),X6) != sK0
                | ~ ssList(X6) )
            | ~ ssList(X5) )
        | ~ ssItem(X4) )
    & nil != sK0
    & sK0 = sK2
    & sK1 = sK3 ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK0,sK1,sK2,sK3,sK4,sK5]),skolemize(X0,sK0),skolemize(X1,sK1),skolemize(X2,sK2),skolemize(X3,sK3),skolemize(X7,sK4(X4,X5,X6)),skolemize(X8,sK5)],[f99]) ).

fof(f139,plain,
    ! [X0] :
      ( ~ ssList(X0)
      | ( cons(sK9(X0),sK8(X0)) = X0
        & ssItem(sK9(X0))
        & ssList(sK8(X0)) )
      | nil = X0 ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK8,sK9]),skolemize(X1,sK8(X0)),skolemize(X2,sK9(X0))],[f104]) ).

fof(f140,plain,
    ! [X0] :
      ( ~ ssList(X0)
      | ! [X1] :
          ( ~ ssList(X1)
          | ( ( nil != app(X0,X1)
              | ( nil = X0
                & nil = X1 ) )
            & ( nil != X0
              | nil != X1
              | nil = app(X0,X1) ) ) ) ),
    inference(nnf_transformation,[],[f110]) ).

fof(f141,plain,
    ! [X0] :
      ( ~ ssList(X0)
      | ! [X1] :
          ( ~ ssList(X1)
          | ( ( nil != app(X0,X1)
              | ( nil = X0
                & nil = X1 ) )
            & ( nil != X0
              | nil != X1
              | nil = app(X0,X1) ) ) ) ),
    inference(flattening,[],[f140]) ).

fof(f149,plain,
    ! [X0] :
      ( ~ ssItem(X0)
      | ! [X1] :
          ( ~ ssItem(X1)
          | ( ( ~ lt(X0,X1)
              | ( leq(X0,X1)
                & X0 != X1 ) )
            & ( ~ leq(X0,X1)
              | X0 = X1
              | lt(X0,X1) ) ) ) ),
    inference(nnf_transformation,[],[f122]) ).

fof(f150,plain,
    ! [X0] :
      ( ~ ssItem(X0)
      | ! [X1] :
          ( ~ ssItem(X1)
          | ( ( ~ lt(X0,X1)
              | ( leq(X0,X1)
                & X0 != X1 ) )
            & ( ~ leq(X0,X1)
              | X0 = X1
              | lt(X0,X1) ) ) ) ),
    inference(flattening,[],[f149]) ).

fof(f151,plain,
    ssList(sK0),
    inference(cnf_transformation,[],[f137]) ).

fof(f155,plain,
    ssItem(sK5),
    inference(cnf_transformation,[],[f137]) ).

fof(f156,plain,
    ! [X9] :
      ( ~ memberP(sK2,X9)
      | sK5 = X9
      | ~ ssItem(X9) ),
    inference(cnf_transformation,[],[f137]) ).

fof(f157,plain,
    ! [X6,X4,X5] :
      ( ssItem(sK4(X4,X5,X6))
      | app(app(X5,cons(X4,nil)),X6) != sK0
      | ~ ssList(X6)
      | ~ ssList(X5)
      | ~ ssItem(X4) ),
    inference(cnf_transformation,[],[f137]) ).

fof(f158,plain,
    ! [X6,X4,X5] :
      ( ~ leq(X4,sK4(X4,X5,X6))
      | app(app(X5,cons(X4,nil)),X6) != sK0
      | ~ ssList(X6)
      | ~ ssList(X5)
      | ~ ssItem(X4) ),
    inference(cnf_transformation,[],[f137]) ).

fof(f159,plain,
    ! [X6,X4,X5] :
      ( lt(X4,sK4(X4,X5,X6))
      | app(app(X5,cons(X4,nil)),X6) != sK0
      | ~ ssList(X6)
      | ~ ssList(X5)
      | ~ ssItem(X4) ),
    inference(cnf_transformation,[],[f137]) ).

fof(f162,plain,
    nil != sK0,
    inference(cnf_transformation,[],[f137]) ).

fof(f163,plain,
    sK0 = sK2,
    inference(cnf_transformation,[],[f137]) ).

fof(f168,plain,
    ! [X0,X1] :
      ( ~ ssList(X0)
      | ~ ssItem(X1)
      | cons(X1,X0) = app(cons(X1,nil),X0) ),
    inference(cnf_transformation,[],[f100]) ).

fof(f171,plain,
    ! [X0] :
      ( ~ ssList(X0)
      | cons(sK9(X0),sK8(X0)) = X0
      | nil = X0 ),
    inference(cnf_transformation,[],[f139]) ).

fof(f172,plain,
    ! [X0] :
      ( ~ ssList(X0)
      | ssItem(sK9(X0))
      | nil = X0 ),
    inference(cnf_transformation,[],[f139]) ).

fof(f173,plain,
    ! [X0] :
      ( ~ ssList(X0)
      | ssList(sK8(X0))
      | nil = X0 ),
    inference(cnf_transformation,[],[f139]) ).

fof(f177,plain,
    ! [X0,X1] :
      ( ~ ssList(X0)
      | ~ ssItem(X1)
      | ssList(cons(X1,X0)) ),
    inference(cnf_transformation,[],[f108]) ).

fof(f179,plain,
    ! [X0,X1] :
      ( ~ ssList(X0)
      | ~ ssList(X1)
      | nil != app(X0,X1)
      | nil = X0 ),
    inference(cnf_transformation,[],[f141]) ).

fof(f185,plain,
    ! [X0] :
      ( ~ ssList(X0)
      | app(nil,X0) = X0 ),
    inference(cnf_transformation,[],[f116]) ).

fof(f187,plain,
    ssList(nil),
    inference(cnf_transformation,[],[f17]) ).

fof(f199,plain,
    ! [X0,X1] :
      ( ~ ssItem(X0)
      | ~ ssItem(X1)
      | ~ lt(X0,X1)
      | leq(X0,X1) ),
    inference(cnf_transformation,[],[f150]) ).

fof(f210,plain,
    nil != sK2,
    inference(definition_unfolding,[],[f162,f163]) ).

fof(f213,plain,
    ! [X6,X4,X5] :
      ( lt(X4,sK4(X4,X5,X6))
      | app(app(X5,cons(X4,nil)),X6) != sK2
      | ~ ssList(X6)
      | ~ ssList(X5)
      | ~ ssItem(X4) ),
    inference(definition_unfolding,[],[f159,f163]) ).

fof(f214,plain,
    ! [X6,X4,X5] :
      ( ~ leq(X4,sK4(X4,X5,X6))
      | app(app(X5,cons(X4,nil)),X6) != sK2
      | ~ ssList(X6)
      | ~ ssList(X5)
      | ~ ssItem(X4) ),
    inference(definition_unfolding,[],[f158,f163]) ).

fof(f215,plain,
    ! [X6,X4,X5] :
      ( ssItem(sK4(X4,X5,X6))
      | app(app(X5,cons(X4,nil)),X6) != sK2
      | ~ ssList(X6)
      | ~ ssList(X5)
      | ~ ssItem(X4) ),
    inference(definition_unfolding,[],[f157,f163]) ).

fof(f217,plain,
    ssList(sK2),
    inference(definition_unfolding,[],[f151,f163]) ).

tcf(c_49,negated_conjecture,
    nil != sK2,
    inference(cnf_transformation,[],[f210]) ).

tcf(c_52,negated_conjecture,
    ! [X0: $i,X1: $i,X2: $i] :
      ( lt(X1,sK4(X1,X0,X2))
      | ~ ssList(X2)
      | ~ ssList(X0)
      | ~ ssItem(X1)
      | ( app(app(X0,cons(X1,nil)),X2) != sK2 ) ),
    inference(cnf_transformation,[],[f213]) ).

tcf(c_53,negated_conjecture,
    ! [X0: $i,X1: $i,X2: $i] :
      ( ~ ssList(X2)
      | ~ ssList(X0)
      | ~ ssItem(X1)
      | ~ leq(X1,sK4(X1,X0,X2))
      | ( app(app(X0,cons(X1,nil)),X2) != sK2 ) ),
    inference(cnf_transformation,[],[f214]) ).

tcf(c_54,negated_conjecture,
    ! [X0: $i,X1: $i,X2: $i] :
      ( ssItem(sK4(X1,X0,X2))
      | ~ ssList(X2)
      | ~ ssList(X0)
      | ~ ssItem(X1)
      | ( app(app(X0,cons(X1,nil)),X2) != sK2 ) ),
    inference(cnf_transformation,[],[f215]) ).

tcf(c_55,negated_conjecture,
    ! [X0: $i] :
      ( ( X0 = sK5 )
      | ~ ssItem(X0)
      | ~ memberP(sK2,X0) ),
    inference(cnf_transformation,[],[f156]) ).

tcf(c_56,negated_conjecture,
    ssItem(sK5),
    inference(cnf_transformation,[],[f155]) ).

tcf(c_60,negated_conjecture,
    ssList(sK2),
    inference(cnf_transformation,[],[f217]) ).

tcf(c_64,plain,
    ! [X0: $i,X1: $i] :
      ( ( app(cons(X0,nil),X1) = cons(X0,X1) )
      | ~ ssList(X1)
      | ~ ssItem(X0) ),
    inference(cnf_transformation,[],[f168]) ).

tcf(c_67,plain,
    ! [X0: $i] :
      ( ssList(sK8(X0))
      | ( X0 = nil )
      | ~ ssList(X0) ),
    inference(cnf_transformation,[],[f173]) ).

tcf(c_68,plain,
    ! [X0: $i] :
      ( ssItem(sK9(X0))
      | ( X0 = nil )
      | ~ ssList(X0) ),
    inference(cnf_transformation,[],[f172]) ).

tcf(c_69,plain,
    ! [X0: $i] :
      ( ( X0 = nil )
      | ( cons(sK9(X0),sK8(X0)) = X0 )
      | ~ ssList(X0) ),
    inference(cnf_transformation,[],[f171]) ).

tcf(c_73,plain,
    ! [X0: $i,X1: $i] :
      ( ssList(cons(X0,X1))
      | ~ ssList(X1)
      | ~ ssItem(X0) ),
    inference(cnf_transformation,[],[f177]) ).

tcf(c_77,plain,
    ! [X0: $i,X1: $i] :
      ( ( X0 = nil )
      | ~ ssList(X1)
      | ~ ssList(X0)
      | ( app(X0,X1) != nil ) ),
    inference(cnf_transformation,[],[f179]) ).

tcf(c_81,plain,
    ! [X0: $i] :
      ( ( app(nil,X0) = X0 )
      | ~ ssList(X0) ),
    inference(cnf_transformation,[],[f185]) ).

tcf(c_83,plain,
    ssList(nil),
    inference(cnf_transformation,[],[f187]) ).

tcf(c_85,plain,
    ! [X0: $i,X1: $i] :
      ( memberP(cons(X0,X1),X0)
      | ~ ssList(X1)
      | ~ ssItem(X0) ),
    inference(cnf_transformation,[],[f224]) ).

tcf(c_97,plain,
    ! [X0: $i,X1: $i] :
      ( leq(X0,X1)
      | ~ ssItem(X1)
      | ~ ssItem(X0)
      | ~ lt(X0,X1) ),
    inference(cnf_transformation,[],[f199]) ).

tcf(c_109,plain,
    ( ( app(nil,nil) = nil )
    | ~ ssList(nil) ),
    inference(instantiation,[status(thm)],[c_81]) ).

tcf(c_120,plain,
    ( ( nil = nil )
    | ~ ssList(nil)
    | ( app(nil,nil) != nil ) ),
    inference(instantiation,[status(thm)],[c_77]) ).

tcf(c_1653,plain,
    ! [X0: $i,X1: $i,X2: $i] :
      ( ( X2 = X0 )
      | ( X2 != X1 )
      | ( X0 != X1 ) ),
    theory(equality) ).

tcf(c_2662,plain,
    ! [X0: $i,X1: $i] :
      ( ( app(nil,cons(X0,X1)) = cons(X0,X1) )
      | ~ ssList(X1)
      | ~ ssItem(X0) ),
    inference(superposition,[status(thm)],[c_73,c_81]) ).

tcf(c_2797,plain,
    ( ( nil = sK2 )
    | ( cons(sK9(sK2),sK8(sK2)) = sK2 ) ),
    inference(superposition,[status(thm)],[c_60,c_69]) ).

tcf(c_2804,plain,
    cons(sK9(sK2),sK8(sK2)) = sK2,
    inference(forward_subsumption_resolution,[status(thm)],[c_2797,c_49]) ).

tcf(c_2832,plain,
    ( memberP(sK2,sK9(sK2))
    | ~ ssList(sK8(sK2))
    | ~ ssItem(sK9(sK2)) ),
    inference(superposition,[status(thm)],[c_2804,c_85]) ).

tcf(c_2862,plain,
    ( ( sK9(sK2) = sK5 )
    | ~ ssList(sK8(sK2))
    | ~ ssItem(sK9(sK2)) ),
    inference(superposition,[status(thm)],[c_2832,c_55]) ).

tcf(c_2912,plain,
    ! [X0: $i] :
      ( ( app(cons(sK5,nil),X0) = cons(sK5,X0) )
      | ~ ssList(X0) ),
    inference(superposition,[status(thm)],[c_56,c_64]) ).

tcf(c_2986,plain,
    ( ( nil = sK2 )
    | ( sK9(sK2) = sK5 )
    | ~ ssList(sK2)
    | ~ ssList(sK8(sK2)) ),
    inference(superposition,[status(thm)],[c_68,c_2862]) ).

tcf(c_2987,plain,
    ( ( sK9(sK2) = sK5 )
    | ~ ssList(sK8(sK2)) ),
    inference(forward_subsumption_resolution,[status(thm)],[c_2986,c_49,c_60]) ).

tcf(c_2996,plain,
    ( ( nil = sK2 )
    | ( sK9(sK2) = sK5 )
    | ~ ssList(sK2) ),
    inference(superposition,[status(thm)],[c_67,c_2987]) ).

tcf(c_2997,plain,
    sK9(sK2) = sK5,
    inference(forward_subsumption_resolution,[status(thm)],[c_2996,c_49,c_60]) ).

tcf(c_2999,plain,
    cons(sK5,sK8(sK2)) = sK2,
    inference(demodulation,[status(thm)],[c_2804,c_2997]) ).

tcf(c_3017,plain,
    ! [X0: $i] :
      ( ( X0 = nil )
      | ( app(cons(sK5,nil),sK8(X0)) = cons(sK5,sK8(X0)) )
      | ~ ssList(X0) ),
    inference(superposition,[status(thm)],[c_67,c_2912]) ).

tcf(c_3791,plain,
    ! [X0: $i] :
      ( ( nil = sK2 )
      | ( sK2 != X0 )
      | ( nil != X0 ) ),
    inference(instantiation,[status(thm)],[c_1653]) ).

tcf(c_3792,plain,
    ( ( nil = sK2 )
    | ( sK2 != nil )
    | ( nil != nil ) ),
    inference(instantiation,[status(thm)],[c_3791]) ).

tcf(c_4941,plain,
    ( ssList(sK8(sK2))
    | ( sK2 = nil )
    | ~ ssList(sK2) ),
    inference(instantiation,[status(thm)],[c_67]) ).

tcf(c_17350,plain,
    ! [X0: $i] :
      ( ( app(nil,cons(sK5,X0)) = cons(sK5,X0) )
      | ~ ssList(X0) ),
    inference(superposition,[status(thm)],[c_56,c_2662]) ).

tcf(c_17393,plain,
    app(nil,cons(sK5,nil)) = cons(sK5,nil),
    inference(superposition,[status(thm)],[c_83,c_17350]) ).

tcf(c_17874,plain,
    ! [X0: $i] :
      ( ~ ssList(nil)
      | ~ ssItem(sK5)
      | ~ ssList(X0)
      | ~ leq(sK5,sK4(sK5,nil,X0))
      | ( app(cons(sK5,nil),X0) != sK2 ) ),
    inference(superposition,[status(thm)],[c_17393,c_53]) ).

tcf(c_17875,plain,
    ! [X0: $i] :
      ( lt(sK5,sK4(sK5,nil,X0))
      | ~ ssList(nil)
      | ~ ssItem(sK5)
      | ~ ssList(X0)
      | ( app(cons(sK5,nil),X0) != sK2 ) ),
    inference(superposition,[status(thm)],[c_17393,c_52]) ).

tcf(c_17878,plain,
    ! [X0: $i] :
      ( ssItem(sK4(sK5,nil,X0))
      | ~ ssList(nil)
      | ~ ssItem(sK5)
      | ~ ssList(X0)
      | ( app(cons(sK5,nil),X0) != sK2 ) ),
    inference(superposition,[status(thm)],[c_17393,c_54]) ).

tcf(c_17893,plain,
    ! [X0: $i] :
      ( ssItem(sK4(sK5,nil,X0))
      | ~ ssList(X0)
      | ( app(cons(sK5,nil),X0) != sK2 ) ),
    inference(forward_subsumption_resolution,[status(thm)],[c_17878,c_83,c_56]) ).

tcf(c_17905,plain,
    ! [X0: $i] :
      ( lt(sK5,sK4(sK5,nil,X0))
      | ~ ssList(X0)
      | ( app(cons(sK5,nil),X0) != sK2 ) ),
    inference(forward_subsumption_resolution,[status(thm)],[c_17875,c_83,c_56]) ).

tcf(c_17909,plain,
    ! [X0: $i] :
      ( ~ ssList(X0)
      | ~ leq(sK5,sK4(sK5,nil,X0))
      | ( app(cons(sK5,nil),X0) != sK2 ) ),
    inference(forward_subsumption_resolution,[status(thm)],[c_17874,c_83,c_56]) ).

tcf(c_52652,plain,
    ( ( nil = sK2 )
    | ( app(cons(sK5,nil),sK8(sK2)) = cons(sK5,sK8(sK2)) ) ),
    inference(superposition,[status(thm)],[c_60,c_3017]) ).

tcf(c_52734,plain,
    ( ( nil = sK2 )
    | ( app(cons(sK5,nil),sK8(sK2)) = sK2 ) ),
    inference(light_normalisation,[status(thm)],[c_52652,c_2999]) ).

tcf(c_52735,plain,
    app(cons(sK5,nil),sK8(sK2)) = sK2,
    inference(forward_subsumption_resolution,[status(thm)],[c_52734,c_49]) ).

tcf(c_53246,plain,
    ( ~ ssList(sK8(sK2))
    | ~ leq(sK5,sK4(sK5,nil,sK8(sK2))) ),
    inference(superposition,[status(thm)],[c_52735,c_17909]) ).

tcf(c_53247,plain,
    ( lt(sK5,sK4(sK5,nil,sK8(sK2)))
    | ~ ssList(sK8(sK2)) ),
    inference(superposition,[status(thm)],[c_52735,c_17905]) ).

tcf(c_53250,plain,
    ( ssItem(sK4(sK5,nil,sK8(sK2)))
    | ~ ssList(sK8(sK2)) ),
    inference(superposition,[status(thm)],[c_52735,c_17893]) ).

tcf(c_53498,plain,
    ssItem(sK4(sK5,nil,sK8(sK2))),
    inference(global_subsumption_just,[status(thm)],[c_53250,c_60,c_83,c_49,c_109,c_120,c_3792,c_4941,c_53250]) ).

tcf(c_53537,plain,
    lt(sK5,sK4(sK5,nil,sK8(sK2))),
    inference(global_subsumption_just,[status(thm)],[c_53247,c_60,c_83,c_49,c_109,c_120,c_3792,c_4941,c_53247]) ).

tcf(c_53542,plain,
    ( leq(sK5,sK4(sK5,nil,sK8(sK2)))
    | ~ ssItem(sK5)
    | ~ ssItem(sK4(sK5,nil,sK8(sK2))) ),
    inference(superposition,[status(thm)],[c_53537,c_97]) ).

tcf(c_53543,plain,
    leq(sK5,sK4(sK5,nil,sK8(sK2))),
    inference(forward_subsumption_resolution,[status(thm)],[c_53542,c_56,c_53498]) ).

tcf(c_53553,plain,
    $false,
    inference(prop_impl_just,[status(thm)],[c_53543,c_53246,c_4941,c_3792,c_120,c_109,c_49,c_83,c_60]) ).


%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03  % Problem  : SWC240+1 : TPTP v9.3.1. Released v2.4.0.
% 0.00/0.04  % Command  : run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM
% 0.10/0.37  % Computer : n009.cluster.edu
% 0.10/0.37  % Model    : x86_64 x86_64
% 0.10/0.37  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.10/0.37  % Memory   : 8046.5625MB
% 0.10/0.37  % OS       : Linux 6.8.0-71-generic
% 0.10/0.37  % CPULimit : 300
% 0.10/0.37  % WCLimit  : 300
% 0.10/0.37  % DateTime : Thu Sep 24 17:10:00 UTC 2026
% 0.10/0.37  % CPUTime  : 
% 0.10/0.38  Running run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM
% 0.10/0.41  Running first-order theorem proving
% 0.10/0.41  Running: /export/starexec/sandbox/solver/bin/iproveropt-multi-core.sh -d -n -l tptp -s fof_schedule -t 300 /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.10/0.42  
% 0.10/0.42  % ======== iProver multi-core TPTP/SMT =========
% 0.10/0.42  
% 0.10/0.42  % Detected problem language: tptp
% 0.10/0.44  % Proving...
% 21.55/4.16  % SZS status Started for theBenchmark.p
% 21.55/4.16  % SZS status Theorem for theBenchmark.p
% 21.55/4.16  
% 21.55/4.16  %---------------- iProver v3.9.4 (pre CASC 2026/SMT-COMP 2026) ----------------%
% 21.55/4.16  
% 21.55/4.16  % ------  iProver source info
% 21.55/4.16  
% 21.55/4.16  % git: date: 2026-07-19 20:42:38 +0200
% 21.55/4.16  % git: sha1: 804e7d636a263075307957e923b7a22a4035de61
% 21.55/4.16  % git: non_committed_changes: false
% 21.55/4.16  
% 21.55/4.16  % ------ Parsing...
% 21.55/4.16  % ------ Clausification by vclausify_rel  & Parsing by iProver...% 
% 21.55/4.16  
% 21.55/4.16  % ------ Preprocessing... sup_sim: 0  sf_s  rm: 1 0s  sf_e  pe_s  pe_e  sup_sim: 0  sf_s  rm: 1 0s  sf_e  pe_s  pe_e % 
% 21.55/4.16  
% 21.55/4.16  % ------ Preprocessing... gs_s  sp: 0 0s  gs_e  snvd_s sp: 0 0s snvd_e % 
% 21.55/4.16  
% 21.55/4.16  % ------ Preprocessing... sf_s  rm: 1 0s  sf_e  sf_s  rm: 0 0s  sf_e 
% 21.55/4.16  % ------ Proving...
% 21.55/4.16  % ------ Problem Properties 
% 21.55/4.16  
% 21.55/4.16  % 
% 21.55/4.16  % clauses                               53
% 21.55/4.16  % conjectures                           10
% 21.55/4.16  % EPR                                   19
% 21.55/4.16  % Horn                                  47
% 21.55/4.16  % unary                                 9
% 21.55/4.16  % binary                                5
% 21.55/4.16  % lits                                  192
% 21.55/4.16  % lits eq                               36
% 21.55/4.16  % fd_pure                               0
% 21.55/4.16  % fd_pseudo                             0
% 21.55/4.16  % fd_cond                               5
% 21.55/4.16  % fd_pseudo_cond                        7
% 21.55/4.16  % AC symbols                            0
% 21.55/4.16  
% 21.55/4.16  % ------ Schedule dynamic 5 is on 
% 21.55/4.16  
% 21.55/4.16  % ------ Input Options "--resolution_flag false --inst_lit_sel_side none" Time Limit: 10.
% 21.55/4.16  
% 21.55/4.16  
% 21.55/4.16  % ------ 
% 21.55/4.16  % Current options:
% 21.55/4.16  % ------ 
% 21.55/4.16  
% 21.55/4.16  
% 21.55/4.16  % 
% 21.55/4.16  
% 21.55/4.16  % ------ Proving...
% 21.55/4.16  % 
% 21.55/4.16  
% 21.55/4.16  % SZS status Theorem for theBenchmark.p
% 21.55/4.16  
% 21.55/4.16  % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 21.55/4.16  
% 21.55/4.16  
%------------------------------------------------------------------------------