TSTP Solution File: SWC118-1 by Beagle---0.9.51

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Beagle---0.9.51
% Problem  : SWC118-1 : TPTP v8.1.2. Released v2.4.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : java -Dfile.encoding=UTF-8 -Xms512M -Xmx4G -Xss10M -jar /export/starexec/sandbox2/solver/bin/beagle.jar -auto -q -proof -print tff -smtsolver /export/starexec/sandbox2/solver/bin/cvc4-1.4-x86_64-linux-opt -liasolver cooper -t %d %s

% Computer : n004.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8042.1875MB
% OS       : Linux 3.10.0-693.el7.x86_64
% CPULimit : 300s
% WCLimit  : 300s
% DateTime : Tue Aug 22 11:01:14 EDT 2023

% Result   : Unsatisfiable 18.98s 6.91s
% Output   : CNFRefutation 19.20s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   12
%            Number of leaves      :   95
% Syntax   : Number of formulae    :  173 (  53 unt;  74 typ;   0 def)
%            Number of atoms       :  210 (  58 equ)
%            Maximal formula atoms :    6 (   2 avg)
%            Number of connectives :  235 ( 124   ~; 111   |;   0   &)
%                                         (   0 <=>;   0  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   11 (   3 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :   82 (  65   >;  17   *;   0   +;   0  <<)
%            Number of predicates  :   21 (  19 usr;   1 prp; 0-2 aty)
%            Number of functors    :   55 (  55 usr;   9 con; 0-2 aty)
%            Number of variables   :   45 (;  45   !;   0   ?;   0   :)

% Comments : 
%------------------------------------------------------------------------------
%$ segmentP > rearsegP > neq > memberP > lt > leq > gt > geq > frontsegP > totalorderedP > totalorderP > strictorderedP > strictorderP > ssList > ssItem > singletonP > equalelemsP > duplicatefreeP > cyclefreeP > skaf48 > skaf47 > skaf46 > skaf45 > skaf43 > skaf42 > cons > app > #nlpp > tl > skaf83 > skaf82 > skaf81 > skaf80 > skaf79 > skaf78 > skaf77 > skaf76 > skaf75 > skaf74 > skaf73 > skaf72 > skaf71 > skaf70 > skaf69 > skaf68 > skaf67 > skaf66 > skaf65 > skaf64 > skaf63 > skaf62 > skaf61 > skaf60 > skaf59 > skaf58 > skaf57 > skaf56 > skaf55 > skaf54 > skaf53 > skaf52 > skaf51 > skaf50 > skaf49 > skaf44 > hd > skac3 > skac2 > sk6 > sk5 > sk4 > sk3 > sk2 > sk1 > nil

%Foreground sorts:

%Background operators:

%Foreground operators:
tff(skaf56,type,
    skaf56: $i > $i ).

tff(segmentP,type,
    segmentP: ( $i * $i ) > $o ).

tff(totalorderedP,type,
    totalorderedP: $i > $o ).

tff(equalelemsP,type,
    equalelemsP: $i > $o ).

tff(skaf74,type,
    skaf74: $i > $i ).

tff(skaf61,type,
    skaf61: $i > $i ).

tff(skaf51,type,
    skaf51: $i > $i ).

tff(skaf83,type,
    skaf83: $i > $i ).

tff(skac2,type,
    skac2: $i ).

tff(skaf63,type,
    skaf63: $i > $i ).

tff(skaf62,type,
    skaf62: $i > $i ).

tff(sk2,type,
    sk2: $i ).

tff(skaf52,type,
    skaf52: $i > $i ).

tff(skaf50,type,
    skaf50: $i > $i ).

tff(skaf42,type,
    skaf42: ( $i * $i ) > $i ).

tff(skaf44,type,
    skaf44: $i > $i ).

tff(singletonP,type,
    singletonP: $i > $o ).

tff(skaf67,type,
    skaf67: $i > $i ).

tff(skaf75,type,
    skaf75: $i > $i ).

tff(sk1,type,
    sk1: $i ).

tff(skaf58,type,
    skaf58: $i > $i ).

tff(skaf46,type,
    skaf46: ( $i * $i ) > $i ).

tff(frontsegP,type,
    frontsegP: ( $i * $i ) > $o ).

tff(skaf70,type,
    skaf70: $i > $i ).

tff(totalorderP,type,
    totalorderP: $i > $o ).

tff(ssItem,type,
    ssItem: $i > $o ).

tff(sk6,type,
    sk6: $i ).

tff(skaf82,type,
    skaf82: $i > $i ).

tff(skaf47,type,
    skaf47: ( $i * $i ) > $i ).

tff(skaf76,type,
    skaf76: $i > $i ).

tff(skac3,type,
    skac3: $i ).

tff(skaf80,type,
    skaf80: $i > $i ).

tff(skaf59,type,
    skaf59: $i > $i ).

tff(skaf53,type,
    skaf53: $i > $i ).

tff(skaf45,type,
    skaf45: ( $i * $i ) > $i ).

tff(hd,type,
    hd: $i > $i ).

tff(app,type,
    app: ( $i * $i ) > $i ).

tff(skaf72,type,
    skaf72: $i > $i ).

tff(duplicatefreeP,type,
    duplicatefreeP: $i > $o ).

tff(skaf64,type,
    skaf64: $i > $i ).

tff(sk4,type,
    sk4: $i ).

tff(gt,type,
    gt: ( $i * $i ) > $o ).

tff(skaf71,type,
    skaf71: $i > $i ).

tff(skaf78,type,
    skaf78: $i > $i ).

tff(sk5,type,
    sk5: $i ).

tff(skaf79,type,
    skaf79: $i > $i ).

tff(rearsegP,type,
    rearsegP: ( $i * $i ) > $o ).

tff(memberP,type,
    memberP: ( $i * $i ) > $o ).

tff(skaf73,type,
    skaf73: $i > $i ).

tff(ssList,type,
    ssList: $i > $o ).

tff(cons,type,
    cons: ( $i * $i ) > $i ).

tff(skaf54,type,
    skaf54: $i > $i ).

tff(skaf77,type,
    skaf77: $i > $i ).

tff(sk3,type,
    sk3: $i ).

tff(skaf66,type,
    skaf66: $i > $i ).

tff(strictorderP,type,
    strictorderP: $i > $o ).

tff(skaf81,type,
    skaf81: $i > $i ).

tff(geq,type,
    geq: ( $i * $i ) > $o ).

tff(skaf60,type,
    skaf60: $i > $i ).

tff(leq,type,
    leq: ( $i * $i ) > $o ).

tff(lt,type,
    lt: ( $i * $i ) > $o ).

tff(skaf69,type,
    skaf69: $i > $i ).

tff(tl,type,
    tl: $i > $i ).

tff(neq,type,
    neq: ( $i * $i ) > $o ).

tff(skaf43,type,
    skaf43: ( $i * $i ) > $i ).

tff(skaf48,type,
    skaf48: ( $i * $i ) > $i ).

tff(skaf65,type,
    skaf65: $i > $i ).

tff(skaf57,type,
    skaf57: $i > $i ).

tff(nil,type,
    nil: $i ).

tff(skaf49,type,
    skaf49: $i > $i ).

tff(skaf55,type,
    skaf55: $i > $i ).

tff(skaf68,type,
    skaf68: $i > $i ).

tff(strictorderedP,type,
    strictorderedP: $i > $o ).

tff(cyclefreeP,type,
    cyclefreeP: $i > $o ).

tff(f_1705,axiom,
    ( ( nil != sk2 )
    | ( nil != sk1 ) ),
    file(unknown,unknown) ).

tff(f_1649,axiom,
    sk2 = sk4,
    file(unknown,unknown) ).

tff(f_1650,axiom,
    sk1 = sk3,
    file(unknown,unknown) ).

tff(f_1700,axiom,
    ( ( nil = sk4 )
    | ( nil != sk3 ) ),
    file(unknown,unknown) ).

tff(f_56,axiom,
    ssList(nil),
    file(unknown,unknown) ).

tff(f_1647,axiom,
    ssList(sk3),
    file(unknown,unknown) ).

tff(f_456,axiom,
    ! [U,V] :
      ( ~ ssList(U)
      | ~ ssList(V)
      | neq(V,U)
      | ( V = U ) ),
    file(unknown,unknown) ).

tff(f_1710,axiom,
    ( ~ neq(sk1,nil)
    | ~ segmentP(sk2,sk1) ),
    file(unknown,unknown) ).

tff(f_1652,axiom,
    ssList(sk6),
    file(unknown,unknown) ).

tff(f_1651,axiom,
    ssList(sk5),
    file(unknown,unknown) ).

tff(f_1648,axiom,
    ssList(sk4),
    file(unknown,unknown) ).

tff(f_1653,axiom,
    app(app(sk5,sk3),sk6) = sk4,
    file(unknown,unknown) ).

tff(f_1371,axiom,
    ! [U,V,W,X] :
      ( ( app(app(U,V),W) != X )
      | ~ ssList(W)
      | ~ ssList(U)
      | ~ ssList(V)
      | ~ ssList(X)
      | segmentP(X,V) ),
    file(unknown,unknown) ).

tff(f_250,axiom,
    ! [U] :
      ( ~ ssList(U)
      | ( app(nil,U) = U ) ),
    file(unknown,unknown) ).

tff(f_975,axiom,
    ! [U,V,W] :
      ( ( app(U,V) != W )
      | ~ ssList(V)
      | ~ ssList(U)
      | ~ ssList(W)
      | frontsegP(W,U) ),
    file(unknown,unknown) ).

tff(f_784,axiom,
    ! [U,V] :
      ( ~ frontsegP(U,V)
      | ~ frontsegP(V,U)
      | ~ ssList(U)
      | ~ ssList(V)
      | ( V = U ) ),
    file(unknown,unknown) ).

tff(f_245,axiom,
    ! [U] :
      ( ~ ssList(U)
      | ( app(U,nil) = U ) ),
    file(unknown,unknown) ).

tff(f_961,axiom,
    ! [U,V,W] :
      ( ( app(U,V) != W )
      | ~ ssList(U)
      | ~ ssList(V)
      | ~ ssList(W)
      | rearsegP(W,V) ),
    file(unknown,unknown) ).

tff(f_334,axiom,
    ! [U,V] :
      ( ~ ssList(U)
      | ~ ssList(V)
      | ssList(app(V,U)) ),
    file(unknown,unknown) ).

tff(f_1051,axiom,
    ! [U,V,W] :
      ( ~ ssList(U)
      | ~ ssList(V)
      | ~ ssList(W)
      | ( app(app(W,V),U) = app(W,app(V,U)) ) ),
    file(unknown,unknown) ).

tff(f_770,axiom,
    ! [U,V] :
      ( ~ rearsegP(U,V)
      | ~ rearsegP(V,U)
      | ~ ssList(U)
      | ~ ssList(V)
      | ( V = U ) ),
    file(unknown,unknown) ).

tff(c_398,plain,
    ( ( sk1 != nil )
    | ( sk2 != nil ) ),
    inference(cnfTransformation,[status(thm)],[f_1705]) ).

tff(c_456,plain,
    sk2 != nil,
    inference(splitLeft,[status(thm)],[c_398]) ).

tff(c_380,plain,
    sk4 = sk2,
    inference(cnfTransformation,[status(thm)],[f_1649]) ).

tff(c_382,plain,
    sk3 = sk1,
    inference(cnfTransformation,[status(thm)],[f_1650]) ).

tff(c_396,plain,
    ( ( sk3 != nil )
    | ( sk4 = nil ) ),
    inference(cnfTransformation,[status(thm)],[f_1700]) ).

tff(c_403,plain,
    ( ( sk1 != nil )
    | ( sk4 = nil ) ),
    inference(demodulation,[status(thm),theory(equality)],[c_382,c_396]) ).

tff(c_406,plain,
    ( ( sk1 != nil )
    | ( sk2 = nil ) ),
    inference(demodulation,[status(thm),theory(equality)],[c_380,c_403]) ).

tff(c_462,plain,
    sk1 != nil,
    inference(negUnitSimplification,[status(thm)],[c_456,c_406]) ).

tff(c_16,plain,
    ssList(nil),
    inference(cnfTransformation,[status(thm)],[f_56]) ).

tff(c_376,plain,
    ssList(sk3),
    inference(cnfTransformation,[status(thm)],[f_1647]) ).

tff(c_409,plain,
    ssList(sk1),
    inference(demodulation,[status(thm),theory(equality)],[c_382,c_376]) ).

tff(c_1687,plain,
    ! [V_475,U_476] :
      ( ( V_475 = U_476 )
      | neq(V_475,U_476)
      | ~ ssList(V_475)
      | ~ ssList(U_476) ),
    inference(cnfTransformation,[status(thm)],[f_456]) ).

tff(c_400,plain,
    ( ~ segmentP(sk2,sk1)
    | ~ neq(sk1,nil) ),
    inference(cnfTransformation,[status(thm)],[f_1710]) ).

tff(c_766,plain,
    ~ neq(sk1,nil),
    inference(splitLeft,[status(thm)],[c_400]) ).

tff(c_1690,plain,
    ( ( sk1 = nil )
    | ~ ssList(sk1)
    | ~ ssList(nil) ),
    inference(resolution,[status(thm)],[c_1687,c_766]) ).

tff(c_1701,plain,
    sk1 = nil,
    inference(demodulation,[status(thm),theory(equality)],[c_16,c_409,c_1690]) ).

tff(c_1703,plain,
    $false,
    inference(negUnitSimplification,[status(thm)],[c_462,c_1701]) ).

tff(c_1704,plain,
    ~ segmentP(sk2,sk1),
    inference(splitRight,[status(thm)],[c_400]) ).

tff(c_386,plain,
    ssList(sk6),
    inference(cnfTransformation,[status(thm)],[f_1652]) ).

tff(c_384,plain,
    ssList(sk5),
    inference(cnfTransformation,[status(thm)],[f_1651]) ).

tff(c_378,plain,
    ssList(sk4),
    inference(cnfTransformation,[status(thm)],[f_1648]) ).

tff(c_408,plain,
    ssList(sk2),
    inference(demodulation,[status(thm),theory(equality)],[c_380,c_378]) ).

tff(c_388,plain,
    app(app(sk5,sk3),sk6) = sk4,
    inference(cnfTransformation,[status(thm)],[f_1653]) ).

tff(c_404,plain,
    app(app(sk5,sk1),sk6) = sk4,
    inference(demodulation,[status(thm),theory(equality)],[c_382,c_388]) ).

tff(c_407,plain,
    app(app(sk5,sk1),sk6) = sk2,
    inference(demodulation,[status(thm),theory(equality)],[c_380,c_404]) ).

tff(c_10151,plain,
    ! [U_949,V_950,W_951] :
      ( segmentP(app(app(U_949,V_950),W_951),V_950)
      | ~ ssList(app(app(U_949,V_950),W_951))
      | ~ ssList(V_950)
      | ~ ssList(U_949)
      | ~ ssList(W_951) ),
    inference(cnfTransformation,[status(thm)],[f_1371]) ).

tff(c_10333,plain,
    ( segmentP(sk2,sk1)
    | ~ ssList(app(app(sk5,sk1),sk6))
    | ~ ssList(sk1)
    | ~ ssList(sk5)
    | ~ ssList(sk6) ),
    inference(superposition,[status(thm),theory(equality)],[c_407,c_10151]) ).

tff(c_10458,plain,
    segmentP(sk2,sk1),
    inference(demodulation,[status(thm),theory(equality)],[c_386,c_384,c_409,c_408,c_407,c_10333]) ).

tff(c_10460,plain,
    $false,
    inference(negUnitSimplification,[status(thm)],[c_1704,c_10458]) ).

tff(c_10461,plain,
    sk1 != nil,
    inference(splitRight,[status(thm)],[c_398]) ).

tff(c_12109,plain,
    ! [U_1110] :
      ( ( app(nil,U_1110) = U_1110 )
      | ~ ssList(U_1110) ),
    inference(cnfTransformation,[status(thm)],[f_250]) ).

tff(c_12233,plain,
    app(nil,sk1) = sk1,
    inference(resolution,[status(thm)],[c_409,c_12109]) ).

tff(c_15405,plain,
    ! [U_1354,V_1355] :
      ( frontsegP(app(U_1354,V_1355),U_1354)
      | ~ ssList(app(U_1354,V_1355))
      | ~ ssList(U_1354)
      | ~ ssList(V_1355) ),
    inference(cnfTransformation,[status(thm)],[f_975]) ).

tff(c_15542,plain,
    ( frontsegP(sk1,nil)
    | ~ ssList(app(nil,sk1))
    | ~ ssList(nil)
    | ~ ssList(sk1) ),
    inference(superposition,[status(thm),theory(equality)],[c_12233,c_15405]) ).

tff(c_15649,plain,
    frontsegP(sk1,nil),
    inference(demodulation,[status(thm),theory(equality)],[c_409,c_16,c_409,c_12233,c_15542]) ).

tff(c_258,plain,
    ! [V_157,U_156] :
      ( ( V_157 = U_156 )
      | ~ ssList(V_157)
      | ~ ssList(U_156)
      | ~ frontsegP(V_157,U_156)
      | ~ frontsegP(U_156,V_157) ),
    inference(cnfTransformation,[status(thm)],[f_784]) ).

tff(c_15668,plain,
    ( ( sk1 = nil )
    | ~ ssList(sk1)
    | ~ ssList(nil)
    | ~ frontsegP(nil,sk1) ),
    inference(resolution,[status(thm)],[c_15649,c_258]) ).

tff(c_15671,plain,
    ( ( sk1 = nil )
    | ~ frontsegP(nil,sk1) ),
    inference(demodulation,[status(thm),theory(equality)],[c_16,c_409,c_15668]) ).

tff(c_15672,plain,
    ~ frontsegP(nil,sk1),
    inference(negUnitSimplification,[status(thm)],[c_10461,c_15671]) ).

tff(c_10500,plain,
    ! [U_978] :
      ( ( app(U_978,nil) = U_978 )
      | ~ ssList(U_978) ),
    inference(cnfTransformation,[status(thm)],[f_245]) ).

tff(c_10621,plain,
    app(nil,nil) = nil,
    inference(resolution,[status(thm)],[c_16,c_10500]) ).

tff(c_15082,plain,
    ! [U_1350,V_1351] :
      ( rearsegP(app(U_1350,V_1351),V_1351)
      | ~ ssList(app(U_1350,V_1351))
      | ~ ssList(V_1351)
      | ~ ssList(U_1350) ),
    inference(cnfTransformation,[status(thm)],[f_961]) ).

tff(c_15231,plain,
    ( rearsegP(nil,nil)
    | ~ ssList(app(nil,nil))
    | ~ ssList(nil)
    | ~ ssList(nil) ),
    inference(superposition,[status(thm),theory(equality)],[c_10621,c_15082]) ).

tff(c_15331,plain,
    rearsegP(nil,nil),
    inference(demodulation,[status(thm),theory(equality)],[c_16,c_16,c_16,c_10621,c_15231]) ).

tff(c_170,plain,
    ! [V_81,U_80] :
      ( ssList(app(V_81,U_80))
      | ~ ssList(V_81)
      | ~ ssList(U_80) ),
    inference(cnfTransformation,[status(thm)],[f_334]) ).

tff(c_12232,plain,
    app(nil,sk5) = sk5,
    inference(resolution,[status(thm)],[c_384,c_12109]) ).

tff(c_15545,plain,
    ( frontsegP(sk5,nil)
    | ~ ssList(app(nil,sk5))
    | ~ ssList(nil)
    | ~ ssList(sk5) ),
    inference(superposition,[status(thm),theory(equality)],[c_12232,c_15405]) ).

tff(c_15651,plain,
    frontsegP(sk5,nil),
    inference(demodulation,[status(thm),theory(equality)],[c_384,c_16,c_384,c_12232,c_15545]) ).

tff(c_15674,plain,
    ( ( sk5 = nil )
    | ~ ssList(sk5)
    | ~ ssList(nil)
    | ~ frontsegP(nil,sk5) ),
    inference(resolution,[status(thm)],[c_15651,c_258]) ).

tff(c_15677,plain,
    ( ( sk5 = nil )
    | ~ frontsegP(nil,sk5) ),
    inference(demodulation,[status(thm),theory(equality)],[c_16,c_384,c_15674]) ).

tff(c_18954,plain,
    ~ frontsegP(nil,sk5),
    inference(splitLeft,[status(thm)],[c_15677]) ).

tff(c_10462,plain,
    sk2 = nil,
    inference(splitRight,[status(thm)],[c_398]) ).

tff(c_10495,plain,
    app(app(sk5,sk1),sk6) = nil,
    inference(demodulation,[status(thm),theory(equality)],[c_10462,c_407]) ).

tff(c_18629,plain,
    ! [W_1501,V_1502,U_1503] :
      ( ( app(app(W_1501,V_1502),U_1503) = app(W_1501,app(V_1502,U_1503)) )
      | ~ ssList(W_1501)
      | ~ ssList(V_1502)
      | ~ ssList(U_1503) ),
    inference(cnfTransformation,[status(thm)],[f_1051]) ).

tff(c_18841,plain,
    ( ( app(sk5,app(sk1,sk6)) = nil )
    | ~ ssList(sk5)
    | ~ ssList(sk1)
    | ~ ssList(sk6) ),
    inference(superposition,[status(thm),theory(equality)],[c_10495,c_18629]) ).

tff(c_18953,plain,
    app(sk5,app(sk1,sk6)) = nil,
    inference(demodulation,[status(thm),theory(equality)],[c_386,c_409,c_384,c_18841]) ).

tff(c_288,plain,
    ! [U_192,V_193] :
      ( frontsegP(app(U_192,V_193),U_192)
      | ~ ssList(app(U_192,V_193))
      | ~ ssList(U_192)
      | ~ ssList(V_193) ),
    inference(cnfTransformation,[status(thm)],[f_975]) ).

tff(c_20533,plain,
    ( frontsegP(nil,sk5)
    | ~ ssList(app(sk5,app(sk1,sk6)))
    | ~ ssList(sk5)
    | ~ ssList(app(sk1,sk6)) ),
    inference(superposition,[status(thm),theory(equality)],[c_18953,c_288]) ).

tff(c_20562,plain,
    ( frontsegP(nil,sk5)
    | ~ ssList(app(sk1,sk6)) ),
    inference(demodulation,[status(thm),theory(equality)],[c_384,c_16,c_18953,c_20533]) ).

tff(c_20563,plain,
    ~ ssList(app(sk1,sk6)),
    inference(negUnitSimplification,[status(thm)],[c_18954,c_20562]) ).

tff(c_20573,plain,
    ( ~ ssList(sk1)
    | ~ ssList(sk6) ),
    inference(resolution,[status(thm)],[c_170,c_20563]) ).

tff(c_20577,plain,
    $false,
    inference(demodulation,[status(thm),theory(equality)],[c_386,c_409,c_20573]) ).

tff(c_20578,plain,
    sk5 = nil,
    inference(splitRight,[status(thm)],[c_15677]) ).

tff(c_10622,plain,
    app(sk5,nil) = sk5,
    inference(resolution,[status(thm)],[c_384,c_10500]) ).

tff(c_15228,plain,
    ( rearsegP(sk5,nil)
    | ~ ssList(app(sk5,nil))
    | ~ ssList(nil)
    | ~ ssList(sk5) ),
    inference(superposition,[status(thm),theory(equality)],[c_10622,c_15082]) ).

tff(c_15329,plain,
    rearsegP(sk5,nil),
    inference(demodulation,[status(thm),theory(equality)],[c_384,c_16,c_384,c_10622,c_15228]) ).

tff(c_256,plain,
    ! [V_155,U_154] :
      ( ( V_155 = U_154 )
      | ~ ssList(V_155)
      | ~ ssList(U_154)
      | ~ rearsegP(V_155,U_154)
      | ~ rearsegP(U_154,V_155) ),
    inference(cnfTransformation,[status(thm)],[f_770]) ).

tff(c_15388,plain,
    ( ( sk5 = nil )
    | ~ ssList(sk5)
    | ~ ssList(nil)
    | ~ rearsegP(nil,sk5) ),
    inference(resolution,[status(thm)],[c_15329,c_256]) ).

tff(c_15391,plain,
    ( ( sk5 = nil )
    | ~ rearsegP(nil,sk5) ),
    inference(demodulation,[status(thm),theory(equality)],[c_16,c_384,c_15388]) ).

tff(c_18627,plain,
    ~ rearsegP(nil,sk5),
    inference(splitLeft,[status(thm)],[c_15391]) ).

tff(c_20580,plain,
    ~ rearsegP(nil,nil),
    inference(demodulation,[status(thm),theory(equality)],[c_20578,c_18627]) ).

tff(c_20612,plain,
    $false,
    inference(demodulation,[status(thm),theory(equality)],[c_15331,c_20580]) ).

tff(c_20613,plain,
    sk5 = nil,
    inference(splitRight,[status(thm)],[c_15391]) ).

tff(c_20642,plain,
    app(app(nil,sk1),sk6) = nil,
    inference(demodulation,[status(thm),theory(equality)],[c_20613,c_10495]) ).

tff(c_20651,plain,
    app(sk1,sk6) = nil,
    inference(demodulation,[status(thm),theory(equality)],[c_12233,c_20642]) ).

tff(c_20979,plain,
    ( frontsegP(nil,sk1)
    | ~ ssList(app(sk1,sk6))
    | ~ ssList(sk1)
    | ~ ssList(sk6) ),
    inference(superposition,[status(thm),theory(equality)],[c_20651,c_288]) ).

tff(c_21004,plain,
    frontsegP(nil,sk1),
    inference(demodulation,[status(thm),theory(equality)],[c_386,c_409,c_16,c_20651,c_20979]) ).

tff(c_21006,plain,
    $false,
    inference(negUnitSimplification,[status(thm)],[c_15672,c_21004]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.12  % Problem  : SWC118-1 : TPTP v8.1.2. Released v2.4.0.
% 0.00/0.13  % Command  : java -Dfile.encoding=UTF-8 -Xms512M -Xmx4G -Xss10M -jar /export/starexec/sandbox2/solver/bin/beagle.jar -auto -q -proof -print tff -smtsolver /export/starexec/sandbox2/solver/bin/cvc4-1.4-x86_64-linux-opt -liasolver cooper -t %d %s
% 0.14/0.34  % Computer : n004.cluster.edu
% 0.14/0.34  % Model    : x86_64 x86_64
% 0.14/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/0.34  % Memory   : 8042.1875MB
% 0.14/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.14/0.34  % CPULimit : 300
% 0.14/0.34  % WCLimit  : 300
% 0.14/0.34  % DateTime : Thu Aug  3 21:40:11 EDT 2023
% 0.14/0.35  % CPUTime  : 
% 18.98/6.91  % SZS status Unsatisfiable for /export/starexec/sandbox2/benchmark/theBenchmark.p
% 18.98/6.92  
% 18.98/6.92  % SZS output start CNFRefutation for /export/starexec/sandbox2/benchmark/theBenchmark.p
% See solution above
% 19.20/6.96  
% 19.20/6.96  Inference rules
% 19.20/6.96  ----------------------
% 19.20/6.96  #Ref     : 0
% 19.20/6.96  #Sup     : 4532
% 19.20/6.96  #Fact    : 0
% 19.20/6.96  #Define  : 0
% 19.20/6.96  #Split   : 28
% 19.20/6.96  #Chain   : 0
% 19.20/6.96  #Close   : 0
% 19.20/6.96  
% 19.20/6.96  Ordering : KBO
% 19.20/6.96  
% 19.20/6.96  Simplification rules
% 19.20/6.96  ----------------------
% 19.20/6.96  #Subsume      : 298
% 19.20/6.96  #Demod        : 4546
% 19.20/6.96  #Tautology    : 1233
% 19.20/6.96  #SimpNegUnit  : 22
% 19.20/6.96  #BackRed      : 61
% 19.20/6.96  
% 19.20/6.96  #Partial instantiations: 0
% 19.20/6.96  #Strategies tried      : 1
% 19.20/6.96  
% 19.20/6.96  Timing (in seconds)
% 19.20/6.96  ----------------------
% 19.20/6.96  Preprocessing        : 0.87
% 19.24/6.96  Parsing              : 0.45
% 19.24/6.96  CNF conversion       : 0.07
% 19.24/6.96  Main loop            : 5.02
% 19.24/6.96  Inferencing          : 1.22
% 19.24/6.96  Reduction            : 2.36
% 19.24/6.96  Demodulation         : 1.79
% 19.24/6.96  BG Simplification    : 0.10
% 19.24/6.96  Subsumption          : 1.01
% 19.24/6.96  Abstraction          : 0.09
% 19.24/6.96  MUC search           : 0.00
% 19.24/6.96  Cooper               : 0.00
% 19.24/6.96  Total                : 5.95
% 19.24/6.96  Index Insertion      : 0.00
% 19.24/6.96  Index Deletion       : 0.00
% 19.24/6.96  Index Matching       : 0.00
% 19.24/6.96  BG Taut test         : 0.00
%------------------------------------------------------------------------------