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Drodi---4.1.1.THM-CRf.s

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%------------------------------------------------------------------------------
% File     : Drodi---4.1.1
% Problem  : NUN065+1 : TPTP v9.3.1. Released v7.3.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : drodi -timeout(300) /export/starexec/sandbox/benchmark/theBenchmark.p

% Computer : n012.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 : Thu Sep 24 01:57:10 PM UTC 2026

% Result   : Theorem 14.72s 2.38s
% Output   : CNFRefutation 14.72s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   17
%            Number of leaves      :   17
% Syntax   : Number of formulae    :   91 (  11 unt;   5 def)
%            Number of atoms       :  298 (   0 equ)
%            Maximal formula atoms :    8 (   3 avg)
%            Number of connectives :  364 ( 157   ~; 136   |;  66   &)
%                                         (   5 <=>;   0  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   11 (   6 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :   11 (  10 usr;   1 prp; 0-4 aty)
%            Number of functors    :   12 (  12 usr;   1 con; 0-2 aty)
%            Number of variables   :  246 ( 225   !;  21   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f1,axiom,
    ? [Y24] :
    ! [X19] :
      ( ( ~ id(X19,Y24)
        & ~ r1(X19) )
      | ( r1(X19)
        & id(X19,Y24) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f2,axiom,
    ! [X11] :
    ? [Y21] :
    ! [X12] :
      ( ( ~ id(X12,Y21)
        & ~ r2(X11,X12) )
      | ( r2(X11,X12)
        & id(X12,Y21) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f5,axiom,
    ! [X20] : id(X20,X20),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f6,axiom,
    ! [X21,X22] :
      ( id(X22,X21)
      | ~ id(X21,X22) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f7,axiom,
    ! [X23,X24,X25] :
      ( ~ id(X24,X25)
      | id(X23,X25)
      | ~ id(X23,X24) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f8,axiom,
    ! [X26,X27] :
      ( ( r1(X27)
        & r1(X26) )
      | ( ~ r1(X27)
        & ~ r1(X26) )
      | ~ id(X26,X27) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f9,axiom,
    ! [X28,X29,X30,X31] :
      ( ( r2(X30,X31)
        & r2(X28,X29) )
      | ( ~ r2(X30,X31)
        & ~ r2(X28,X29) )
      | ~ id(X29,X31)
      | ~ id(X28,X30) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f12,axiom,
    ! [X1,X8] :
    ? [Y4] :
      ( ? [Y7] :
          ( r3(X1,X8,Y7)
          & r2(Y7,Y4) )
      & ? [Y5] :
          ( ? [Y15] :
              ( r3(X1,Y15,Y5)
              & r2(X8,Y15) )
          & id(Y5,Y4) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f14,axiom,
    ! [X3,X10] :
      ( id(X3,X10)
      | ! [Y12] :
          ( ~ r2(X10,Y12)
          | ! [Y13] :
              ( ~ r2(X3,Y13)
              | ~ id(Y13,Y12) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f16,axiom,
    ! [X5] :
    ? [Y8] :
      ( ? [Y18] :
          ( r1(Y18)
          & id(Y8,Y18) )
      & ? [Y17] :
          ( r4(X5,Y17,Y8)
          & r1(Y17) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f18,axiom,
    ! [X7,Y10] :
      ( ~ r2(X7,Y10)
      | ! [Y20] :
          ( ~ r1(Y20)
          | ~ id(Y20,Y10) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f19,conjecture,
    ? [Y1] :
      ( ! [Y4] :
          ( ~ r1(Y4)
          | ~ id(Y1,Y4) )
      & ! [Y2] :
          ( ~ id(Y1,Y2)
          | ! [Y3] :
              ( ~ r2(Y3,Y2)
              | ~ r1(Y3) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f20,negated_conjecture,
    ~ ? [Y1] :
        ( ! [Y4] :
            ( ~ r1(Y4)
            | ~ id(Y1,Y4) )
        & ! [Y2] :
            ( ~ id(Y1,Y2)
            | ! [Y3] :
                ( ~ r2(Y3,Y2)
                | ~ r1(Y3) ) ) ),
    inference(negated_conjecture,[status(cth)],[f19]) ).

fof(f21,definition,
    ! [Y24,X19] :
      ( sP0_prd(X19,Y24)
    <=> ( r1(X19)
        & id(X19,Y24) ) ),
    introduced(definition,[new_symbols(definition,[sP0_prd])],[]) ).

fof(f22,plain,
    ? [Y24] :
    ! [X19] :
      ( ( ~ id(X19,Y24)
        & ~ r1(X19) )
      | sP0_prd(X19,Y24) ),
    inference(formula_renaming,[status(thm)],[f1,f21]) ).

fof(f23,plain,
    ! [X19] :
      ( ( ~ id(X19,sK0_skl)
        & ~ r1(X19) )
      | sP0_prd(X19,sK0_skl) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK0_skl]),skolemize(Y24,sK0_skl)],[f22]) ).

fof(f24,plain,
    ! [X0] :
      ( ~ r1(X0)
      | sP0_prd(X0,sK0_skl) ),
    inference(cnf_transformation,[status(thm)],[f23]) ).

fof(f26,definition,
    ! [X11,Y21,X12] :
      ( sP1_prd(X12,Y21,X11)
    <=> ( r2(X11,X12)
        & id(X12,Y21) ) ),
    introduced(definition,[new_symbols(definition,[sP1_prd])],[]) ).

fof(f27,plain,
    ! [X11] :
    ? [Y21] :
    ! [X12] :
      ( ( ~ id(X12,Y21)
        & ~ r2(X11,X12) )
      | sP1_prd(X12,Y21,X11) ),
    inference(formula_renaming,[status(thm)],[f2,f26]) ).

fof(f28,plain,
    ! [X11,X12] :
      ( ( ~ id(X12,sK1_skl(X11))
        & ~ r2(X11,X12) )
      | sP1_prd(X12,sK1_skl(X11),X11) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK1_skl]),skolemize(Y21,sK1_skl(X11))],[f27]) ).

fof(f30,plain,
    ! [X0,X1] :
      ( ~ id(X0,sK1_skl(X1))
      | sP1_prd(X0,sK1_skl(X1),X1) ),
    inference(cnf_transformation,[status(thm)],[f28]) ).

fof(f41,plain,
    ! [X0] : id(X0,X0),
    inference(cnf_transformation,[status(thm)],[f5]) ).

fof(f42,plain,
    ! [X0,X1] :
      ( id(X1,X0)
      | ~ id(X0,X1) ),
    inference(cnf_transformation,[status(thm)],[f6]) ).

fof(f43,plain,
    ! [X24,X25] :
      ( ~ id(X24,X25)
      | ! [X23] :
          ( id(X23,X25)
          | ~ id(X23,X24) ) ),
    inference(miniscoping,[status(thm)],[f7]) ).

fof(f44,plain,
    ! [X0,X1,X2] :
      ( ~ id(X1,X2)
      | id(X0,X2)
      | ~ id(X0,X1) ),
    inference(cnf_transformation,[status(thm)],[f43]) ).

fof(f45,definition,
    ! [X26,X27] :
      ( sP4_prd(X27,X26)
    <=> ( ~ r1(X27)
        & ~ r1(X26) ) ),
    introduced(definition,[new_symbols(definition,[sP4_prd])],[]) ).

fof(f46,plain,
    ! [X26,X27] :
      ( ( r1(X27)
        & r1(X26) )
      | sP4_prd(X27,X26)
      | ~ id(X26,X27) ),
    inference(formula_renaming,[status(thm)],[f8,f45]) ).

fof(f47,plain,
    ! [X0,X1] :
      ( r1(X0)
      | sP4_prd(X1,X0)
      | ~ id(X0,X1) ),
    inference(cnf_transformation,[status(thm)],[f46]) ).

fof(f49,definition,
    ! [X28,X29,X30,X31] :
      ( sP5_prd(X31,X30,X29,X28)
    <=> ( ~ r2(X30,X31)
        & ~ r2(X28,X29) ) ),
    introduced(definition,[new_symbols(definition,[sP5_prd])],[]) ).

fof(f50,plain,
    ! [X28,X29,X30,X31] :
      ( ( r2(X30,X31)
        & r2(X28,X29) )
      | sP5_prd(X31,X30,X29,X28)
      | ~ id(X29,X31)
      | ~ id(X28,X30) ),
    inference(formula_renaming,[status(thm)],[f9,f49]) ).

fof(f51,plain,
    ! [X0,X1,X2,X3] :
      ( r2(X0,X2)
      | sP5_prd(X3,X1,X2,X0)
      | ~ id(X2,X3)
      | ~ id(X0,X1) ),
    inference(cnf_transformation,[status(thm)],[f50]) ).

fof(f61,plain,
    ! [X1,X8] :
      ( r3(X1,X8,sK7_skl(X8,X1))
      & r2(sK7_skl(X8,X1),sK4_skl(X8,X1))
      & r3(X1,sK6_skl(X8,X1),sK5_skl(X8,X1))
      & r2(X8,sK6_skl(X8,X1))
      & id(sK5_skl(X8,X1),sK4_skl(X8,X1)) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK4_skl,sK5_skl,sK6_skl,sK7_skl]),skolemize(Y4,sK4_skl(X8,X1)),skolemize(Y5,sK5_skl(X8,X1)),skolemize(Y15,sK6_skl(X8,X1)),skolemize(Y7,sK7_skl(X8,X1))],[f12]) ).

fof(f65,plain,
    ! [X0,X1] : r2(sK7_skl(X0,X1),sK4_skl(X0,X1)),
    inference(cnf_transformation,[status(thm)],[f61]) ).

fof(f73,plain,
    ! [X0,X1,X2,X3] :
      ( id(X2,X3)
      | ~ r2(X3,X1)
      | ~ r2(X2,X0)
      | ~ id(X0,X1) ),
    inference(cnf_transformation,[status(thm)],[f14]) ).

fof(f78,plain,
    ! [X5] :
      ( r1(sK16_skl(X5))
      & id(sK14_skl(X5),sK16_skl(X5))
      & r4(X5,sK15_skl(X5),sK14_skl(X5))
      & r1(sK15_skl(X5)) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK14_skl,sK15_skl,sK16_skl]),skolemize(Y8,sK14_skl(X5)),skolemize(Y17,sK15_skl(X5)),skolemize(Y18,sK16_skl(X5))],[f16]) ).

fof(f82,plain,
    ! [X0] : r1(sK16_skl(X0)),
    inference(cnf_transformation,[status(thm)],[f78]) ).

fof(f89,plain,
    ! [Y10] :
      ( ! [X7] : ~ r2(X7,Y10)
      | ! [Y20] :
          ( ~ r1(Y20)
          | ~ id(Y20,Y10) ) ),
    inference(miniscoping,[status(thm)],[f18]) ).

fof(f90,plain,
    ! [X0,X1,X2] :
      ( ~ r2(X2,X1)
      | ~ r1(X0)
      | ~ id(X0,X1) ),
    inference(cnf_transformation,[status(thm)],[f89]) ).

fof(f91,plain,
    ! [Y1] :
      ( ? [Y4] :
          ( r1(Y4)
          & id(Y1,Y4) )
      | ? [Y2] :
          ( id(Y1,Y2)
          & ? [Y3] :
              ( r2(Y3,Y2)
              & r1(Y3) ) ) ),
    inference(pre_NNF_transformation,[status(thm)],[f20]) ).

fof(f92,definition,
    ! [Y1,Y2] :
      ( sP9_prd(Y2,Y1)
    <=> ( id(Y1,Y2)
        & ? [Y3] :
            ( r2(Y3,Y2)
            & r1(Y3) ) ) ),
    introduced(definition,[new_symbols(definition,[sP9_prd])],[]) ).

fof(f93,plain,
    ! [Y1] :
      ( ? [Y4] :
          ( r1(Y4)
          & id(Y1,Y4) )
      | ? [Y2] : sP9_prd(Y2,Y1) ),
    inference(formula_renaming,[status(thm)],[f91,f92]) ).

fof(f94,plain,
    ! [Y1] :
      ( ( r1(sK21_skl(Y1))
        & id(Y1,sK21_skl(Y1)) )
      | sP9_prd(sK20_skl(Y1),Y1) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK20_skl,sK21_skl]),skolemize(Y2,sK20_skl(Y1)),skolemize(Y4,sK21_skl(Y1))],[f93]) ).

fof(f95,plain,
    ! [X0] :
      ( id(X0,sK21_skl(X0))
      | sP9_prd(sK20_skl(X0),X0) ),
    inference(cnf_transformation,[status(thm)],[f94]) ).

fof(f96,plain,
    ! [X0] :
      ( r1(sK21_skl(X0))
      | sP9_prd(sK20_skl(X0),X0) ),
    inference(cnf_transformation,[status(thm)],[f94]) ).

fof(f97,plain,
    ! [Y24,X19] :
      ( ( ~ r1(X19)
        | ~ id(X19,Y24)
        | sP0_prd(X19,Y24) )
      & ( ( r1(X19)
          & id(X19,Y24) )
        | ~ sP0_prd(X19,Y24) ) ),
    inference(NNF_transformation,[status(thm)],[f21]) ).

fof(f98,plain,
    ( ! [Y24,X19] :
        ( ~ r1(X19)
        | ~ id(X19,Y24)
        | sP0_prd(X19,Y24) )
    & ! [Y24,X19] :
        ( ( r1(X19)
          & id(X19,Y24) )
        | ~ sP0_prd(X19,Y24) ) ),
    inference(miniscoping,[status(thm)],[f97]) ).

fof(f99,plain,
    ! [X0,X1] :
      ( id(X0,X1)
      | ~ sP0_prd(X0,X1) ),
    inference(cnf_transformation,[status(thm)],[f98]) ).

fof(f102,plain,
    ! [X11,Y21,X12] :
      ( ( ~ r2(X11,X12)
        | ~ id(X12,Y21)
        | sP1_prd(X12,Y21,X11) )
      & ( ( r2(X11,X12)
          & id(X12,Y21) )
        | ~ sP1_prd(X12,Y21,X11) ) ),
    inference(NNF_transformation,[status(thm)],[f26]) ).

fof(f103,plain,
    ( ! [X11,Y21,X12] :
        ( ~ r2(X11,X12)
        | ~ id(X12,Y21)
        | sP1_prd(X12,Y21,X11) )
    & ! [X11,Y21,X12] :
        ( ( r2(X11,X12)
          & id(X12,Y21) )
        | ~ sP1_prd(X12,Y21,X11) ) ),
    inference(miniscoping,[status(thm)],[f102]) ).

fof(f105,plain,
    ! [X0,X1,X2] :
      ( r2(X2,X0)
      | ~ sP1_prd(X0,X1,X2) ),
    inference(cnf_transformation,[status(thm)],[f103]) ).

fof(f117,plain,
    ! [X26,X27] :
      ( ( r1(X27)
        | r1(X26)
        | sP4_prd(X27,X26) )
      & ( ( ~ r1(X27)
          & ~ r1(X26) )
        | ~ sP4_prd(X27,X26) ) ),
    inference(NNF_transformation,[status(thm)],[f45]) ).

fof(f118,plain,
    ( ! [X26,X27] :
        ( r1(X27)
        | r1(X26)
        | sP4_prd(X27,X26) )
    & ! [X26,X27] :
        ( ( ~ r1(X27)
          & ~ r1(X26) )
        | ~ sP4_prd(X27,X26) ) ),
    inference(miniscoping,[status(thm)],[f117]) ).

fof(f120,plain,
    ! [X0,X1] :
      ( ~ r1(X0)
      | ~ sP4_prd(X0,X1) ),
    inference(cnf_transformation,[status(thm)],[f118]) ).

fof(f122,plain,
    ! [X28,X29,X30,X31] :
      ( ( r2(X30,X31)
        | r2(X28,X29)
        | sP5_prd(X31,X30,X29,X28) )
      & ( ( ~ r2(X30,X31)
          & ~ r2(X28,X29) )
        | ~ sP5_prd(X31,X30,X29,X28) ) ),
    inference(NNF_transformation,[status(thm)],[f49]) ).

fof(f123,plain,
    ( ! [X28,X29,X30,X31] :
        ( r2(X30,X31)
        | r2(X28,X29)
        | sP5_prd(X31,X30,X29,X28) )
    & ! [X28,X29,X30,X31] :
        ( ( ~ r2(X30,X31)
          & ~ r2(X28,X29) )
        | ~ sP5_prd(X31,X30,X29,X28) ) ),
    inference(miniscoping,[status(thm)],[f122]) ).

fof(f125,plain,
    ! [X0,X1,X2,X3] :
      ( ~ r2(X1,X0)
      | ~ sP5_prd(X0,X1,X2,X3) ),
    inference(cnf_transformation,[status(thm)],[f123]) ).

fof(f142,plain,
    ! [Y1,Y2] :
      ( ( ~ id(Y1,Y2)
        | ! [Y3] :
            ( ~ r2(Y3,Y2)
            | ~ r1(Y3) )
        | sP9_prd(Y2,Y1) )
      & ( ( id(Y1,Y2)
          & ? [Y3] :
              ( r2(Y3,Y2)
              & r1(Y3) ) )
        | ~ sP9_prd(Y2,Y1) ) ),
    inference(NNF_transformation,[status(thm)],[f92]) ).

fof(f143,plain,
    ( ! [Y1,Y2] :
        ( ~ id(Y1,Y2)
        | ! [Y3] :
            ( ~ r2(Y3,Y2)
            | ~ r1(Y3) )
        | sP9_prd(Y2,Y1) )
    & ! [Y1,Y2] :
        ( ( id(Y1,Y2)
          & ? [Y3] :
              ( r2(Y3,Y2)
              & r1(Y3) ) )
        | ~ sP9_prd(Y2,Y1) ) ),
    inference(miniscoping,[status(thm)],[f142]) ).

fof(f144,plain,
    ( ! [Y1,Y2] :
        ( ~ id(Y1,Y2)
        | ! [Y3] :
            ( ~ r2(Y3,Y2)
            | ~ r1(Y3) )
        | sP9_prd(Y2,Y1) )
    & ! [Y1,Y2] :
        ( ( id(Y1,Y2)
          & r2(sK22_skl(Y2,Y1),Y2)
          & r1(sK22_skl(Y2,Y1)) )
        | ~ sP9_prd(Y2,Y1) ) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK22_skl]),skolemize(Y3,sK22_skl(Y2,Y1))],[f143]) ).

fof(f145,plain,
    ! [X0,X1] :
      ( r1(sK22_skl(X0,X1))
      | ~ sP9_prd(X0,X1) ),
    inference(cnf_transformation,[status(thm)],[f144]) ).

fof(f146,plain,
    ! [X0,X1] :
      ( r2(sK22_skl(X0,X1),X0)
      | ~ sP9_prd(X0,X1) ),
    inference(cnf_transformation,[status(thm)],[f144]) ).

fof(f147,plain,
    ! [X0,X1] :
      ( id(X1,X0)
      | ~ sP9_prd(X0,X1) ),
    inference(cnf_transformation,[status(thm)],[f144]) ).

fof(f169,plain,
    ! [X0] :
      ( ~ r1(X0)
      | id(X0,sK0_skl) ),
    inference(resolution,[status(thm)],[f99,f24]) ).

fof(f175,plain,
    ! [X0,X1] :
      ( r2(X1,X0)
      | ~ id(X0,sK1_skl(X1)) ),
    inference(resolution,[status(thm)],[f30,f105]) ).

fof(f257,plain,
    ! [X0,X1,X2] :
      ( ~ r1(X2)
      | ~ id(X2,X0)
      | ~ id(X0,sK1_skl(X1)) ),
    inference(resolution,[status(thm)],[f175,f90]) ).

fof(f347,plain,
    ! [X0,X1,X2] :
      ( ~ id(sK16_skl(X2),X0)
      | ~ id(X0,sK1_skl(X1)) ),
    inference(resolution,[status(thm)],[f257,f82]) ).

fof(f357,plain,
    ! [X0,X1,X2] :
      ( ~ id(sK1_skl(X2),X1)
      | ~ id(sK16_skl(X0),X1) ),
    inference(resolution,[status(thm)],[f347,f42]) ).

fof(f445,plain,
    ! [X0,X1] :
      ( ~ r1(X1)
      | r1(X0)
      | ~ id(X0,X1) ),
    inference(resolution,[status(thm)],[f47,f120]) ).

fof(f449,plain,
    ! [X0,X1,X2,X3] :
      ( ~ r2(X1,X3)
      | r2(X0,X2)
      | ~ id(X2,X3)
      | ~ id(X0,X1) ),
    inference(resolution,[status(thm)],[f51,f125]) ).

fof(f489,plain,
    ! [X0,X1] :
      ( ~ r1(sK16_skl(X1))
      | ~ id(sK1_skl(X0),sK0_skl) ),
    inference(resolution,[status(thm)],[f357,f169]) ).

fof(f495,plain,
    ! [X0] : ~ id(sK1_skl(X0),sK0_skl),
    inference(forward_subsumption_resolution,[status(thm)],[f489,f82]) ).

fof(f498,plain,
    ! [X0,X1] :
      ( ~ id(X1,sK0_skl)
      | ~ id(sK1_skl(X0),X1) ),
    inference(resolution,[status(thm)],[f495,f44]) ).

fof(f509,plain,
    ! [X0,X1] :
      ( ~ r1(X1)
      | ~ id(sK1_skl(X0),X1) ),
    inference(resolution,[status(thm)],[f498,f169]) ).

fof(f521,plain,
    ! [X0,X1] :
      ( sP9_prd(sK20_skl(X1),X1)
      | ~ id(sK1_skl(X0),sK21_skl(X1)) ),
    inference(resolution,[status(thm)],[f509,f96]) ).

fof(f537,plain,
    ! [X0,X1,X2] :
      ( ~ sP9_prd(X1,X2)
      | r1(X0)
      | ~ id(X0,sK22_skl(X1,X2)) ),
    inference(resolution,[status(thm)],[f445,f145]) ).

fof(f648,plain,
    ! [X0] :
      ( sP9_prd(sK20_skl(sK1_skl(X0)),sK1_skl(X0))
      | sP9_prd(sK20_skl(sK1_skl(X0)),sK1_skl(X0)) ),
    inference(resolution,[status(thm)],[f521,f95]) ).

fof(f652,plain,
    ! [X0] : sP9_prd(sK20_skl(sK1_skl(X0)),sK1_skl(X0)),
    inference(duplicate_literals_removal,[status(thm)],[f648]) ).

fof(f658,plain,
    ! [X0] : id(sK1_skl(X0),sK20_skl(sK1_skl(X0))),
    inference(resolution,[status(thm)],[f652,f147]) ).

fof(f669,plain,
    ! [X0,X1,X2,X3,X4] :
      ( ~ r2(sK22_skl(X1,X2),X4)
      | ~ r2(X0,X3)
      | ~ id(X3,X4)
      | ~ sP9_prd(X1,X2)
      | r1(X0) ),
    inference(resolution,[status(thm)],[f537,f73]) ).

fof(f1010,plain,
    ! [X0,X1,X2] :
      ( ~ r1(X0)
      | ~ id(X0,sK4_skl(X1,X2)) ),
    inference(resolution,[status(thm)],[f65,f90]) ).

fof(f1083,plain,
    ! [X0,X1] : ~ r1(sK4_skl(X0,X1)),
    inference(resolution,[status(thm)],[f1010,f41]) ).

fof(f1710,plain,
    ! [X0,X1,X2,X3] :
      ( ~ sP9_prd(X1,X2)
      | ~ r2(X0,X3)
      | ~ id(X3,X1)
      | ~ sP9_prd(X1,X2)
      | r1(X0) ),
    inference(resolution,[status(thm)],[f669,f146]) ).

fof(f1714,plain,
    ! [X0,X1,X2,X3] :
      ( ~ r2(X0,X3)
      | ~ id(X3,X1)
      | ~ sP9_prd(X1,X2)
      | r1(X0) ),
    inference(duplicate_literals_removal,[status(thm)],[f1710]) ).

fof(f2166,plain,
    ! [X0,X1,X2,X3] :
      ( ~ id(X3,sK1_skl(X1))
      | r2(X0,X2)
      | ~ id(X2,X3)
      | ~ id(X0,X1) ),
    inference(resolution,[status(thm)],[f449,f175]) ).

fof(f4069,plain,
    ! [X0,X1,X2] :
      ( r2(X0,X2)
      | ~ id(X2,sK1_skl(X1))
      | ~ id(X0,X1) ),
    inference(resolution,[status(thm)],[f2166,f41]) ).

fof(f5357,plain,
    ! [X0,X1] :
      ( r2(X0,sK1_skl(X1))
      | ~ id(X0,X1) ),
    inference(resolution,[status(thm)],[f4069,f41]) ).

fof(f5385,plain,
    ! [X0] : r2(X0,sK1_skl(X0)),
    inference(resolution,[status(thm)],[f5357,f41]) ).

fof(f5407,plain,
    ! [X0,X1,X2] :
      ( ~ id(sK1_skl(X0),X1)
      | ~ sP9_prd(X1,X2)
      | r1(X0) ),
    inference(resolution,[status(thm)],[f5385,f1714]) ).

fof(f5973,plain,
    ! [X0,X1] :
      ( ~ id(sK1_skl(X0),sK20_skl(sK1_skl(X1)))
      | r1(X0) ),
    inference(resolution,[status(thm)],[f5407,f652]) ).

fof(f5980,plain,
    ! [X0] : r1(X0),
    inference(resolution,[status(thm)],[f5973,f658]) ).

fof(f6060,plain,
    $false,
    inference(backward_subsumption_resolution,[status(thm)],[f1083,f5980]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.01  % Problem  : NUN065+1 : TPTP v9.3.1. Released v7.3.0.
% 0.00/0.02  % Command  : drodi -timeout(300) /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.04/0.30  % Computer : n012.cluster.edu
% 0.04/0.30  % Model    : x86_64 x86_64
% 0.04/0.30  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.04/0.30  % Memory   : 8046.5625MB
% 0.04/0.30  % OS       : Linux 6.8.0-71-generic
% 0.04/0.30  % CPULimit : 300
% 0.04/0.30  % WCLimit  : 300
% 0.04/0.30  % DateTime : Mon Sep 21 03:22:36 UTC 2026
% 0.04/0.31  % CPUTime  : 
% 0.04/0.31  % Drodi V4.1.1
% 14.72/2.38  % Refutation found
% 14.72/2.38  % SZS status Theorem for theBenchmark: Theorem is valid
% 14.72/2.38  % SZS output start CNFRefutation for theBenchmark
% See solution above
% 1.06/2.41  % Elapsed time: 2.091343 seconds
% 1.06/2.41  % CPU time: 16.377794 seconds
% 1.06/2.41  % Total memory used: 172.573 MB
% 1.06/2.41  % Net memory used: 136.702 MB
%------------------------------------------------------------------------------