TSTP Solution File: GRP268-1 by SnakeForV-SAT---1.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : SnakeForV-SAT---1.0
% Problem  : GRP268-1 : TPTP v8.1.0. Released v2.5.0.
% 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 : n028.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 16:21:06 EDT 2022

% Result   : Unsatisfiable 2.34s 0.69s
% Output   : Refutation 2.34s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   14
%            Number of leaves      :   40
% Syntax   : Number of formulae    :  172 (  23 unt;   0 def)
%            Number of atoms       :  463 ( 202 equ)
%            Maximal formula atoms :   10 (   2 avg)
%            Number of connectives :  553 ( 262   ~; 274   |;   0   &)
%                                         (  17 <=>;   0  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   16 (   3 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :   19 (  17 usr;  18 prp; 0-2 aty)
%            Number of functors    :   20 (  20 usr;  18 con; 0-2 aty)
%            Number of variables   :   35 (  35   !;   0   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f777,plain,
    $false,
    inference(avatar_sat_refutation,[],[f67,f81,f86,f98,f105,f110,f111,f112,f116,f117,f129,f169,f308,f374,f376,f409,f413,f454,f483,f487,f621,f668,f732]) ).

fof(f732,plain,
    ( ~ spl10_3
    | ~ spl10_5
    | ~ spl10_7
    | spl10_14
    | ~ spl10_18 ),
    inference(avatar_contradiction_clause,[],[f731]) ).

fof(f731,plain,
    ( $false
    | ~ spl10_3
    | ~ spl10_5
    | ~ spl10_7
    | spl10_14
    | ~ spl10_18 ),
    inference(subsumption_resolution,[],[f730,f684]) ).

fof(f684,plain,
    ( identity != sk_c6
    | spl10_14
    | ~ spl10_18 ),
    inference(forward_demodulation,[],[f145,f163]) ).

fof(f163,plain,
    ( identity = sk_c7
    | ~ spl10_18 ),
    inference(avatar_component_clause,[],[f162]) ).

fof(f162,plain,
    ( spl10_18
  <=> identity = sk_c7 ),
    introduced(avatar_definition,[new_symbols(naming,[spl10_18])]) ).

fof(f145,plain,
    ( sk_c7 != sk_c6
    | spl10_14 ),
    inference(avatar_component_clause,[],[f143]) ).

fof(f143,plain,
    ( spl10_14
  <=> sk_c7 = sk_c6 ),
    introduced(avatar_definition,[new_symbols(naming,[spl10_14])]) ).

fof(f730,plain,
    ( identity = sk_c6
    | ~ spl10_3
    | ~ spl10_5
    | ~ spl10_7
    | ~ spl10_18 ),
    inference(forward_demodulation,[],[f729,f698]) ).

fof(f698,plain,
    ( identity = multiply(sk_c6,identity)
    | ~ spl10_3
    | ~ spl10_5
    | ~ spl10_7
    | ~ spl10_18 ),
    inference(backward_demodulation,[],[f692,f696]) ).

fof(f696,plain,
    ( identity = sk_c4
    | ~ spl10_5
    | ~ spl10_7 ),
    inference(forward_demodulation,[],[f694,f2]) ).

fof(f2,axiom,
    ! [X0] : identity = multiply(inverse(X0),X0),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',left_inverse) ).

fof(f694,plain,
    ( sk_c4 = multiply(inverse(sk_c6),sk_c6)
    | ~ spl10_5
    | ~ spl10_7 ),
    inference(backward_demodulation,[],[f688,f90]) ).

fof(f90,plain,
    ( sk_c6 = sF6
    | ~ spl10_7 ),
    inference(avatar_component_clause,[],[f88]) ).

fof(f88,plain,
    ( spl10_7
  <=> sk_c6 = sF6 ),
    introduced(avatar_definition,[new_symbols(naming,[spl10_7])]) ).

fof(f688,plain,
    ( sk_c4 = multiply(inverse(sF6),sk_c6)
    | ~ spl10_5 ),
    inference(backward_demodulation,[],[f260,f80]) ).

fof(f80,plain,
    ( sk_c4 = sF9
    | ~ spl10_5 ),
    inference(avatar_component_clause,[],[f78]) ).

fof(f78,plain,
    ( spl10_5
  <=> sk_c4 = sF9 ),
    introduced(avatar_definition,[new_symbols(naming,[spl10_5])]) ).

fof(f260,plain,
    sF9 = multiply(inverse(sF6),sk_c6),
    inference(superposition,[],[f186,f226]) ).

fof(f226,plain,
    sk_c6 = multiply(sF6,sF9),
    inference(forward_demodulation,[],[f218,f37]) ).

fof(f37,plain,
    inverse(sk_c3) = sF6,
    introduced(function_definition,[]) ).

fof(f218,plain,
    sk_c6 = multiply(inverse(sk_c3),sF9),
    inference(superposition,[],[f186,f43]) ).

fof(f43,plain,
    multiply(sk_c3,sk_c6) = sF9,
    introduced(function_definition,[]) ).

fof(f186,plain,
    ! [X6,X7] : multiply(inverse(X6),multiply(X6,X7)) = X7,
    inference(forward_demodulation,[],[f179,f1]) ).

fof(f1,axiom,
    ! [X0] : multiply(identity,X0) = X0,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',left_identity) ).

fof(f179,plain,
    ! [X6,X7] : multiply(inverse(X6),multiply(X6,X7)) = multiply(identity,X7),
    inference(superposition,[],[f3,f2]) ).

fof(f3,axiom,
    ! [X2,X0,X1] : multiply(multiply(X0,X1),X2) = multiply(X0,multiply(X1,X2)),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',associativity) ).

fof(f692,plain,
    ( identity = multiply(sk_c6,sk_c4)
    | ~ spl10_3
    | ~ spl10_18 ),
    inference(forward_demodulation,[],[f35,f584]) ).

fof(f584,plain,
    ( identity = sF5
    | ~ spl10_3
    | ~ spl10_18 ),
    inference(backward_demodulation,[],[f71,f163]) ).

fof(f71,plain,
    ( sk_c7 = sF5
    | ~ spl10_3 ),
    inference(avatar_component_clause,[],[f69]) ).

fof(f69,plain,
    ( spl10_3
  <=> sk_c7 = sF5 ),
    introduced(avatar_definition,[new_symbols(naming,[spl10_3])]) ).

fof(f35,plain,
    multiply(sk_c6,sk_c4) = sF5,
    introduced(function_definition,[]) ).

fof(f729,plain,
    ( sk_c6 = multiply(sk_c6,identity)
    | ~ spl10_5
    | ~ spl10_7 ),
    inference(forward_demodulation,[],[f728,f90]) ).

fof(f728,plain,
    ( sk_c6 = multiply(sF6,identity)
    | ~ spl10_5
    | ~ spl10_7 ),
    inference(forward_demodulation,[],[f523,f696]) ).

fof(f523,plain,
    ( sk_c6 = multiply(sF6,sk_c4)
    | ~ spl10_5 ),
    inference(forward_demodulation,[],[f226,f80]) ).

fof(f668,plain,
    ( ~ spl10_1
    | spl10_2
    | ~ spl10_14
    | ~ spl10_18 ),
    inference(avatar_contradiction_clause,[],[f667]) ).

fof(f667,plain,
    ( $false
    | ~ spl10_1
    | spl10_2
    | ~ spl10_14
    | ~ spl10_18 ),
    inference(subsumption_resolution,[],[f666,f659]) ).

fof(f659,plain,
    ( identity != sF0
    | spl10_2
    | ~ spl10_18 ),
    inference(forward_demodulation,[],[f65,f163]) ).

fof(f65,plain,
    ( sk_c7 != sF0
    | spl10_2 ),
    inference(avatar_component_clause,[],[f64]) ).

fof(f64,plain,
    ( spl10_2
  <=> sk_c7 = sF0 ),
    introduced(avatar_definition,[new_symbols(naming,[spl10_2])]) ).

fof(f666,plain,
    ( identity = sF0
    | ~ spl10_1
    | ~ spl10_14
    | ~ spl10_18 ),
    inference(forward_demodulation,[],[f665,f643]) ).

fof(f643,plain,
    ( identity = inverse(identity)
    | ~ spl10_1
    | ~ spl10_14
    | ~ spl10_18 ),
    inference(backward_demodulation,[],[f634,f641]) ).

fof(f641,plain,
    ( identity = sk_c2
    | ~ spl10_1
    | ~ spl10_14
    | ~ spl10_18 ),
    inference(forward_demodulation,[],[f640,f2]) ).

fof(f640,plain,
    ( sk_c2 = multiply(inverse(identity),identity)
    | ~ spl10_1
    | ~ spl10_14
    | ~ spl10_18 ),
    inference(forward_demodulation,[],[f561,f163]) ).

fof(f561,plain,
    ( sk_c2 = multiply(inverse(sk_c7),identity)
    | ~ spl10_1
    | ~ spl10_14 ),
    inference(forward_demodulation,[],[f219,f477]) ).

fof(f477,plain,
    ( sk_c7 = sF4
    | ~ spl10_1
    | ~ spl10_14 ),
    inference(forward_demodulation,[],[f62,f144]) ).

fof(f144,plain,
    ( sk_c7 = sk_c6
    | ~ spl10_14 ),
    inference(avatar_component_clause,[],[f143]) ).

fof(f62,plain,
    ( sk_c6 = sF4
    | ~ spl10_1 ),
    inference(avatar_component_clause,[],[f60]) ).

fof(f60,plain,
    ( spl10_1
  <=> sk_c6 = sF4 ),
    introduced(avatar_definition,[new_symbols(naming,[spl10_1])]) ).

fof(f219,plain,
    sk_c2 = multiply(inverse(sF4),identity),
    inference(superposition,[],[f186,f136]) ).

fof(f136,plain,
    identity = multiply(sF4,sk_c2),
    inference(superposition,[],[f2,f33]) ).

fof(f33,plain,
    inverse(sk_c2) = sF4,
    introduced(function_definition,[]) ).

fof(f634,plain,
    ( identity = inverse(sk_c2)
    | ~ spl10_1
    | ~ spl10_14
    | ~ spl10_18 ),
    inference(forward_demodulation,[],[f478,f163]) ).

fof(f478,plain,
    ( sk_c7 = inverse(sk_c2)
    | ~ spl10_1
    | ~ spl10_14 ),
    inference(forward_demodulation,[],[f33,f477]) ).

fof(f665,plain,
    ( sF0 = inverse(identity)
    | ~ spl10_14
    | ~ spl10_18 ),
    inference(forward_demodulation,[],[f27,f586]) ).

fof(f586,plain,
    ( identity = sk_c6
    | ~ spl10_14
    | ~ spl10_18 ),
    inference(backward_demodulation,[],[f144,f163]) ).

fof(f27,plain,
    inverse(sk_c6) = sF0,
    introduced(function_definition,[]) ).

fof(f621,plain,
    ( ~ spl10_2
    | ~ spl10_13
    | ~ spl10_14
    | ~ spl10_18 ),
    inference(avatar_contradiction_clause,[],[f620]) ).

fof(f620,plain,
    ( $false
    | ~ spl10_2
    | ~ spl10_13
    | ~ spl10_14
    | ~ spl10_18 ),
    inference(subsumption_resolution,[],[f619,f589]) ).

fof(f589,plain,
    ( identity = inverse(identity)
    | ~ spl10_2
    | ~ spl10_14
    | ~ spl10_18 ),
    inference(backward_demodulation,[],[f479,f163]) ).

fof(f479,plain,
    ( sk_c7 = inverse(sk_c7)
    | ~ spl10_2
    | ~ spl10_14 ),
    inference(forward_demodulation,[],[f132,f144]) ).

fof(f132,plain,
    ( sk_c7 = inverse(sk_c6)
    | ~ spl10_2 ),
    inference(backward_demodulation,[],[f27,f66]) ).

fof(f66,plain,
    ( sk_c7 = sF0
    | ~ spl10_2 ),
    inference(avatar_component_clause,[],[f64]) ).

fof(f619,plain,
    ( identity != inverse(identity)
    | ~ spl10_2
    | ~ spl10_13
    | ~ spl10_14
    | ~ spl10_18 ),
    inference(forward_demodulation,[],[f618,f589]) ).

fof(f618,plain,
    ( identity != inverse(inverse(identity))
    | ~ spl10_13
    | ~ spl10_14
    | ~ spl10_18 ),
    inference(subsumption_resolution,[],[f616,f1]) ).

fof(f616,plain,
    ( identity != multiply(identity,identity)
    | identity != inverse(inverse(identity))
    | ~ spl10_13
    | ~ spl10_14
    | ~ spl10_18 ),
    inference(superposition,[],[f603,f2]) ).

fof(f603,plain,
    ( ! [X6] :
        ( identity != multiply(identity,multiply(X6,identity))
        | identity != inverse(X6) )
    | ~ spl10_13
    | ~ spl10_14
    | ~ spl10_18 ),
    inference(forward_demodulation,[],[f595,f163]) ).

fof(f595,plain,
    ( ! [X6] :
        ( identity != multiply(identity,multiply(X6,identity))
        | sk_c7 != inverse(X6) )
    | ~ spl10_13
    | ~ spl10_14
    | ~ spl10_18 ),
    inference(backward_demodulation,[],[f576,f163]) ).

fof(f576,plain,
    ( ! [X6] :
        ( sk_c7 != multiply(sk_c7,multiply(X6,sk_c7))
        | sk_c7 != inverse(X6) )
    | ~ spl10_13
    | ~ spl10_14 ),
    inference(forward_demodulation,[],[f575,f144]) ).

fof(f575,plain,
    ( ! [X6] :
        ( sk_c7 != multiply(sk_c6,multiply(X6,sk_c6))
        | sk_c7 != inverse(X6) )
    | ~ spl10_13
    | ~ spl10_14 ),
    inference(forward_demodulation,[],[f128,f144]) ).

fof(f128,plain,
    ( ! [X6] :
        ( sk_c6 != inverse(X6)
        | sk_c7 != multiply(sk_c6,multiply(X6,sk_c6)) )
    | ~ spl10_13 ),
    inference(avatar_component_clause,[],[f127]) ).

fof(f127,plain,
    ( spl10_13
  <=> ! [X6] :
        ( sk_c7 != multiply(sk_c6,multiply(X6,sk_c6))
        | sk_c6 != inverse(X6) ) ),
    introduced(avatar_definition,[new_symbols(naming,[spl10_13])]) ).

fof(f487,plain,
    ( spl10_23
    | ~ spl10_10 ),
    inference(avatar_split_clause,[],[f430,f107,f406]) ).

fof(f406,plain,
    ( spl10_23
  <=> sk_c8 = inverse(sk_c1) ),
    introduced(avatar_definition,[new_symbols(naming,[spl10_23])]) ).

fof(f107,plain,
    ( spl10_10
  <=> sk_c8 = sF8 ),
    introduced(avatar_definition,[new_symbols(naming,[spl10_10])]) ).

fof(f430,plain,
    ( sk_c8 = inverse(sk_c1)
    | ~ spl10_10 ),
    inference(backward_demodulation,[],[f40,f109]) ).

fof(f109,plain,
    ( sk_c8 = sF8
    | ~ spl10_10 ),
    inference(avatar_component_clause,[],[f107]) ).

fof(f40,plain,
    inverse(sk_c1) = sF8,
    introduced(function_definition,[]) ).

fof(f483,plain,
    ( spl10_18
    | ~ spl10_6
    | ~ spl10_22 ),
    inference(avatar_split_clause,[],[f482,f402,f83,f162]) ).

fof(f83,plain,
    ( spl10_6
  <=> sk_c7 = sF3 ),
    introduced(avatar_definition,[new_symbols(naming,[spl10_6])]) ).

fof(f402,plain,
    ( spl10_22
  <=> identity = sF3 ),
    introduced(avatar_definition,[new_symbols(naming,[spl10_22])]) ).

fof(f482,plain,
    ( identity = sk_c7
    | ~ spl10_6
    | ~ spl10_22 ),
    inference(backward_demodulation,[],[f85,f403]) ).

fof(f403,plain,
    ( identity = sF3
    | ~ spl10_22 ),
    inference(avatar_component_clause,[],[f402]) ).

fof(f85,plain,
    ( sk_c7 = sF3
    | ~ spl10_6 ),
    inference(avatar_component_clause,[],[f83]) ).

fof(f454,plain,
    ( spl10_22
    | ~ spl10_10 ),
    inference(avatar_split_clause,[],[f453,f107,f402]) ).

fof(f453,plain,
    ( identity = sF3
    | ~ spl10_10 ),
    inference(forward_demodulation,[],[f436,f2]) ).

fof(f436,plain,
    ( sF3 = multiply(inverse(sk_c8),sk_c8)
    | ~ spl10_10 ),
    inference(backward_demodulation,[],[f258,f109]) ).

fof(f258,plain,
    multiply(inverse(sF8),sk_c8) = sF3,
    inference(superposition,[],[f186,f225]) ).

fof(f225,plain,
    sk_c8 = multiply(sF8,sF3),
    inference(forward_demodulation,[],[f211,f40]) ).

fof(f211,plain,
    sk_c8 = multiply(inverse(sk_c1),sF3),
    inference(superposition,[],[f186,f31]) ).

fof(f31,plain,
    multiply(sk_c1,sk_c8) = sF3,
    introduced(function_definition,[]) ).

fof(f413,plain,
    ( ~ spl10_4
    | ~ spl10_8
    | ~ spl10_12
    | ~ spl10_18 ),
    inference(avatar_contradiction_clause,[],[f412]) ).

fof(f412,plain,
    ( $false
    | ~ spl10_4
    | ~ spl10_8
    | ~ spl10_12
    | ~ spl10_18 ),
    inference(subsumption_resolution,[],[f399,f131]) ).

fof(f131,plain,
    ( sk_c8 = inverse(sk_c5)
    | ~ spl10_8 ),
    inference(backward_demodulation,[],[f38,f95]) ).

fof(f95,plain,
    ( sk_c8 = sF7
    | ~ spl10_8 ),
    inference(avatar_component_clause,[],[f93]) ).

fof(f93,plain,
    ( spl10_8
  <=> sk_c8 = sF7 ),
    introduced(avatar_definition,[new_symbols(naming,[spl10_8])]) ).

fof(f38,plain,
    inverse(sk_c5) = sF7,
    introduced(function_definition,[]) ).

fof(f399,plain,
    ( sk_c8 != inverse(sk_c5)
    | ~ spl10_4
    | ~ spl10_12
    | ~ spl10_18 ),
    inference(trivial_inequality_removal,[],[f398]) ).

fof(f398,plain,
    ( sk_c8 != inverse(sk_c5)
    | identity != identity
    | ~ spl10_4
    | ~ spl10_12
    | ~ spl10_18 ),
    inference(superposition,[],[f377,f312]) ).

fof(f312,plain,
    ( identity = multiply(sk_c5,sk_c8)
    | ~ spl10_4
    | ~ spl10_18 ),
    inference(backward_demodulation,[],[f130,f163]) ).

fof(f130,plain,
    ( sk_c7 = multiply(sk_c5,sk_c8)
    | ~ spl10_4 ),
    inference(backward_demodulation,[],[f30,f75]) ).

fof(f75,plain,
    ( sk_c7 = sF2
    | ~ spl10_4 ),
    inference(avatar_component_clause,[],[f73]) ).

fof(f73,plain,
    ( spl10_4
  <=> sk_c7 = sF2 ),
    introduced(avatar_definition,[new_symbols(naming,[spl10_4])]) ).

fof(f30,plain,
    multiply(sk_c5,sk_c8) = sF2,
    introduced(function_definition,[]) ).

fof(f377,plain,
    ( ! [X7] :
        ( identity != multiply(X7,sk_c8)
        | sk_c8 != inverse(X7) )
    | ~ spl10_12
    | ~ spl10_18 ),
    inference(forward_demodulation,[],[f125,f163]) ).

fof(f125,plain,
    ( ! [X7] :
        ( sk_c8 != inverse(X7)
        | sk_c7 != multiply(X7,sk_c8) )
    | ~ spl10_12 ),
    inference(avatar_component_clause,[],[f124]) ).

fof(f124,plain,
    ( spl10_12
  <=> ! [X7] :
        ( sk_c8 != inverse(X7)
        | sk_c7 != multiply(X7,sk_c8) ) ),
    introduced(avatar_definition,[new_symbols(naming,[spl10_12])]) ).

fof(f409,plain,
    ( ~ spl10_22
    | ~ spl10_23
    | ~ spl10_12
    | ~ spl10_18 ),
    inference(avatar_split_clause,[],[f397,f162,f124,f406,f402]) ).

fof(f397,plain,
    ( sk_c8 != inverse(sk_c1)
    | identity != sF3
    | ~ spl10_12
    | ~ spl10_18 ),
    inference(superposition,[],[f377,f31]) ).

fof(f376,plain,
    ( ~ spl10_2
    | spl10_14
    | ~ spl10_18 ),
    inference(avatar_contradiction_clause,[],[f375]) ).

fof(f375,plain,
    ( $false
    | ~ spl10_2
    | spl10_14
    | ~ spl10_18 ),
    inference(subsumption_resolution,[],[f315,f331]) ).

fof(f331,plain,
    ( identity = sk_c6
    | ~ spl10_2
    | ~ spl10_18 ),
    inference(forward_demodulation,[],[f320,f2]) ).

fof(f320,plain,
    ( sk_c6 = multiply(inverse(identity),identity)
    | ~ spl10_2
    | ~ spl10_18 ),
    inference(backward_demodulation,[],[f214,f163]) ).

fof(f214,plain,
    ( sk_c6 = multiply(inverse(sk_c7),identity)
    | ~ spl10_2 ),
    inference(superposition,[],[f186,f135]) ).

fof(f135,plain,
    ( identity = multiply(sk_c7,sk_c6)
    | ~ spl10_2 ),
    inference(superposition,[],[f2,f132]) ).

fof(f315,plain,
    ( identity != sk_c6
    | spl10_14
    | ~ spl10_18 ),
    inference(backward_demodulation,[],[f145,f163]) ).

fof(f374,plain,
    ( ~ spl10_2
    | ~ spl10_18
    | spl10_19 ),
    inference(avatar_contradiction_clause,[],[f373]) ).

fof(f373,plain,
    ( $false
    | ~ spl10_2
    | ~ spl10_18
    | spl10_19 ),
    inference(subsumption_resolution,[],[f372,f331]) ).

fof(f372,plain,
    ( identity != sk_c6
    | ~ spl10_2
    | ~ spl10_18
    | spl10_19 ),
    inference(forward_demodulation,[],[f316,f370]) ).

fof(f370,plain,
    ( identity = inverse(identity)
    | ~ spl10_2
    | ~ spl10_18 ),
    inference(forward_demodulation,[],[f313,f331]) ).

fof(f313,plain,
    ( identity = inverse(sk_c6)
    | ~ spl10_2
    | ~ spl10_18 ),
    inference(backward_demodulation,[],[f132,f163]) ).

fof(f316,plain,
    ( sk_c6 != inverse(identity)
    | ~ spl10_18
    | spl10_19 ),
    inference(backward_demodulation,[],[f168,f163]) ).

fof(f168,plain,
    ( sk_c6 != inverse(sk_c7)
    | spl10_19 ),
    inference(avatar_component_clause,[],[f166]) ).

fof(f166,plain,
    ( spl10_19
  <=> sk_c6 = inverse(sk_c7) ),
    introduced(avatar_definition,[new_symbols(naming,[spl10_19])]) ).

fof(f308,plain,
    ( ~ spl10_4
    | ~ spl10_8
    | spl10_18 ),
    inference(avatar_contradiction_clause,[],[f307]) ).

fof(f307,plain,
    ( $false
    | ~ spl10_4
    | ~ spl10_8
    | spl10_18 ),
    inference(subsumption_resolution,[],[f306,f164]) ).

fof(f164,plain,
    ( identity != sk_c7
    | spl10_18 ),
    inference(avatar_component_clause,[],[f162]) ).

fof(f306,plain,
    ( identity = sk_c7
    | ~ spl10_4
    | ~ spl10_8 ),
    inference(forward_demodulation,[],[f302,f2]) ).

fof(f302,plain,
    ( sk_c7 = multiply(inverse(sk_c8),sk_c8)
    | ~ spl10_4
    | ~ spl10_8 ),
    inference(superposition,[],[f186,f199]) ).

fof(f199,plain,
    ( sk_c8 = multiply(sk_c8,sk_c7)
    | ~ spl10_4
    | ~ spl10_8 ),
    inference(superposition,[],[f189,f130]) ).

fof(f189,plain,
    ( ! [X0] : multiply(sk_c8,multiply(sk_c5,X0)) = X0
    | ~ spl10_8 ),
    inference(forward_demodulation,[],[f188,f1]) ).

fof(f188,plain,
    ( ! [X0] : multiply(identity,X0) = multiply(sk_c8,multiply(sk_c5,X0))
    | ~ spl10_8 ),
    inference(superposition,[],[f3,f134]) ).

fof(f134,plain,
    ( identity = multiply(sk_c8,sk_c5)
    | ~ spl10_8 ),
    inference(superposition,[],[f2,f131]) ).

fof(f169,plain,
    ( ~ spl10_18
    | ~ spl10_19
    | ~ spl10_2
    | ~ spl10_11 ),
    inference(avatar_split_clause,[],[f160,f121,f64,f166,f162]) ).

fof(f121,plain,
    ( spl10_11
  <=> ! [X4] :
        ( sk_c6 != inverse(X4)
        | sk_c7 != multiply(X4,sk_c6) ) ),
    introduced(avatar_definition,[new_symbols(naming,[spl10_11])]) ).

fof(f160,plain,
    ( sk_c6 != inverse(sk_c7)
    | identity != sk_c7
    | ~ spl10_2
    | ~ spl10_11 ),
    inference(forward_demodulation,[],[f139,f132]) ).

fof(f139,plain,
    ( sk_c6 != inverse(inverse(sk_c6))
    | identity != sk_c7
    | ~ spl10_11 ),
    inference(superposition,[],[f122,f2]) ).

fof(f122,plain,
    ( ! [X4] :
        ( sk_c7 != multiply(X4,sk_c6)
        | sk_c6 != inverse(X4) )
    | ~ spl10_11 ),
    inference(avatar_component_clause,[],[f121]) ).

fof(f129,plain,
    ( spl10_11
    | ~ spl10_2
    | spl10_12
    | spl10_12
    | spl10_13 ),
    inference(avatar_split_clause,[],[f58,f127,f124,f124,f64,f121]) ).

fof(f58,plain,
    ! [X3,X6,X7,X4] :
      ( sk_c7 != multiply(sk_c6,multiply(X6,sk_c6))
      | sk_c8 != inverse(X3)
      | sk_c8 != inverse(X7)
      | sk_c7 != sF0
      | sk_c6 != inverse(X6)
      | sk_c6 != inverse(X4)
      | sk_c7 != multiply(X7,sk_c8)
      | sk_c7 != multiply(X4,sk_c6)
      | sk_c7 != multiply(X3,sk_c8) ),
    inference(definition_folding,[],[f26,f27]) ).

fof(f26,plain,
    ! [X3,X6,X7,X4] :
      ( sk_c7 != multiply(X3,sk_c8)
      | sk_c7 != multiply(X7,sk_c8)
      | sk_c8 != inverse(X3)
      | sk_c7 != multiply(X4,sk_c6)
      | sk_c6 != inverse(X4)
      | sk_c7 != inverse(sk_c6)
      | sk_c7 != multiply(sk_c6,multiply(X6,sk_c6))
      | sk_c6 != inverse(X6)
      | sk_c8 != inverse(X7) ),
    inference(equality_resolution,[],[f25]) ).

fof(f25,axiom,
    ! [X3,X6,X7,X4,X5] :
      ( sk_c7 != multiply(X3,sk_c8)
      | sk_c7 != multiply(X7,sk_c8)
      | sk_c8 != inverse(X3)
      | multiply(X6,sk_c6) != X5
      | sk_c7 != multiply(X4,sk_c6)
      | sk_c6 != inverse(X4)
      | sk_c7 != inverse(sk_c6)
      | sk_c7 != multiply(sk_c6,X5)
      | sk_c6 != inverse(X6)
      | sk_c8 != inverse(X7) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_22) ).

fof(f117,plain,
    ( spl10_10
    | spl10_2 ),
    inference(avatar_split_clause,[],[f41,f64,f107]) ).

fof(f41,plain,
    ( sk_c7 = sF0
    | sk_c8 = sF8 ),
    inference(definition_folding,[],[f9,f40,f27]) ).

fof(f9,axiom,
    ( sk_c7 = inverse(sk_c6)
    | sk_c8 = inverse(sk_c1) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_6) ).

fof(f116,plain,
    ( spl10_6
    | spl10_8 ),
    inference(avatar_split_clause,[],[f47,f93,f83]) ).

fof(f47,plain,
    ( sk_c8 = sF7
    | sk_c7 = sF3 ),
    inference(definition_folding,[],[f5,f38,f31]) ).

fof(f5,axiom,
    ( multiply(sk_c1,sk_c8) = sk_c7
    | sk_c8 = inverse(sk_c5) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_2) ).

fof(f112,plain,
    ( spl10_10
    | spl10_8 ),
    inference(avatar_split_clause,[],[f57,f93,f107]) ).

fof(f57,plain,
    ( sk_c8 = sF7
    | sk_c8 = sF8 ),
    inference(definition_folding,[],[f8,f40,f38]) ).

fof(f8,axiom,
    ( sk_c8 = inverse(sk_c5)
    | sk_c8 = inverse(sk_c1) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_5) ).

fof(f111,plain,
    ( spl10_2
    | spl10_3 ),
    inference(avatar_split_clause,[],[f49,f69,f64]) ).

fof(f49,plain,
    ( sk_c7 = sF5
    | sk_c7 = sF0 ),
    inference(definition_folding,[],[f18,f27,f35]) ).

fof(f18,axiom,
    ( sk_c7 = multiply(sk_c6,sk_c4)
    | sk_c7 = inverse(sk_c6) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_15) ).

fof(f110,plain,
    ( spl10_10
    | spl10_4 ),
    inference(avatar_split_clause,[],[f50,f73,f107]) ).

fof(f50,plain,
    ( sk_c7 = sF2
    | sk_c8 = sF8 ),
    inference(definition_folding,[],[f7,f30,f40]) ).

fof(f7,axiom,
    ( sk_c8 = inverse(sk_c1)
    | sk_c7 = multiply(sk_c5,sk_c8) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_4) ).

fof(f105,plain,
    ( spl10_2
    | spl10_6 ),
    inference(avatar_split_clause,[],[f56,f83,f64]) ).

fof(f56,plain,
    ( sk_c7 = sF3
    | sk_c7 = sF0 ),
    inference(definition_folding,[],[f6,f27,f31]) ).

fof(f6,axiom,
    ( multiply(sk_c1,sk_c8) = sk_c7
    | sk_c7 = inverse(sk_c6) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_3) ).

fof(f98,plain,
    ( spl10_2
    | spl10_7 ),
    inference(avatar_split_clause,[],[f54,f88,f64]) ).

fof(f54,plain,
    ( sk_c6 = sF6
    | sk_c7 = sF0 ),
    inference(definition_folding,[],[f24,f27,f37]) ).

fof(f24,axiom,
    ( sk_c6 = inverse(sk_c3)
    | sk_c7 = inverse(sk_c6) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_21) ).

fof(f86,plain,
    ( spl10_6
    | spl10_4 ),
    inference(avatar_split_clause,[],[f32,f73,f83]) ).

fof(f32,plain,
    ( sk_c7 = sF2
    | sk_c7 = sF3 ),
    inference(definition_folding,[],[f4,f31,f30]) ).

fof(f4,axiom,
    ( sk_c7 = multiply(sk_c5,sk_c8)
    | multiply(sk_c1,sk_c8) = sk_c7 ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_1) ).

fof(f81,plain,
    ( spl10_5
    | spl10_2 ),
    inference(avatar_split_clause,[],[f51,f64,f78]) ).

fof(f51,plain,
    ( sk_c7 = sF0
    | sk_c4 = sF9 ),
    inference(definition_folding,[],[f21,f43,f27]) ).

fof(f21,axiom,
    ( sk_c7 = inverse(sk_c6)
    | sk_c4 = multiply(sk_c3,sk_c6) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_18) ).

fof(f67,plain,
    ( spl10_1
    | spl10_2 ),
    inference(avatar_split_clause,[],[f48,f64,f60]) ).

fof(f48,plain,
    ( sk_c7 = sF0
    | sk_c6 = sF4 ),
    inference(definition_folding,[],[f15,f27,f33]) ).

fof(f15,axiom,
    ( sk_c6 = inverse(sk_c2)
    | sk_c7 = inverse(sk_c6) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_12) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.04/0.12  % Problem    : GRP268-1 : TPTP v8.1.0. Released v2.5.0.
% 0.04/0.13  % Command    : vampire --input_syntax tptp --proof tptp --output_axiom_names on --mode portfolio --schedule snake_tptp_sat --cores 0 -t %d %s
% 0.14/0.34  % Computer : n028.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   : Mon Aug 29 22:32:33 EDT 2022
% 0.14/0.34  % CPUTime    : 
% 0.20/0.55  % (26664)dis+10_1:1_fsd=on:sp=occurrence:i=7:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/7Mi)
% 0.20/0.55  % (26664)Instruction limit reached!
% 0.20/0.55  % (26664)------------------------------
% 0.20/0.55  % (26664)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 0.20/0.55  % (26668)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)
% 0.20/0.56  % (26680)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)
% 0.20/0.56  % (26672)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)
% 0.20/0.56  % (26676)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)
% 1.67/0.57  % (26664)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 1.67/0.57  % (26664)Termination reason: Unknown
% 1.67/0.57  % (26664)Termination phase: Saturation
% 1.67/0.57  
% 1.67/0.57  % (26664)Memory used [KB]: 5628
% 1.67/0.57  % (26664)Time elapsed: 0.128 s
% 1.67/0.57  % (26664)Instructions burned: 8 (million)
% 1.67/0.57  % (26664)------------------------------
% 1.67/0.57  % (26664)------------------------------
% 1.67/0.57  % (26684)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)
% 1.84/0.60  % (26661)ott+33_1:4_s2a=on:tgt=ground:i=51:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/51Mi)
% 1.84/0.61  % (26674)fmb+10_1:1_bce=on:i=59:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/59Mi)
% 1.84/0.61  % (26657)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)
% 1.84/0.61  % (26677)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)
% 1.84/0.61  TRYING [1]
% 1.84/0.61  TRYING [2]
% 1.84/0.61  % (26675)ott+10_1:1_tgt=ground:i=100:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/100Mi)
% 1.84/0.62  % (26678)ott+3_1:1_gsp=on:lcm=predicate:i=138:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/138Mi)
% 1.84/0.62  % (26669)ott+10_1:28_bd=off:bs=on:tgt=ground:i=101:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/101Mi)
% 1.84/0.62  % (26679)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)
% 1.84/0.62  % (26683)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)
% 1.84/0.62  % (26686)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)
% 1.84/0.62  % (26662)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)
% 1.84/0.62  % (26682)ott+10_1:5_bd=off:tgt=full:i=500:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/500Mi)
% 1.84/0.63  % (26671)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)
% 1.84/0.63  % (26667)ott+2_1:1_fsr=off:gsp=on:i=50:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/50Mi)
% 1.84/0.63  % (26660)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)
% 1.84/0.63  % (26663)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)
% 1.84/0.63  % (26685)ott+33_1:4_s2a=on:tgt=ground:i=439:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/439Mi)
% 1.84/0.63  TRYING [1]
% 1.84/0.63  % (26670)ott+10_1:5_bd=off:tgt=full:i=99:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/99Mi)
% 1.84/0.63  TRYING [2]
% 1.84/0.64  TRYING [1]
% 1.84/0.64  TRYING [2]
% 1.84/0.64  TRYING [3]
% 1.84/0.64  TRYING [3]
% 1.84/0.64  % (26666)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)
% 1.84/0.64  % (26665)dis+2_1:64_add=large:bce=on:bd=off:i=2:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/2Mi)
% 1.84/0.64  % (26665)Instruction limit reached!
% 1.84/0.64  % (26665)------------------------------
% 1.84/0.64  % (26665)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 1.84/0.64  % (26665)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 1.84/0.64  % (26665)Termination reason: Unknown
% 1.84/0.64  % (26665)Termination phase: Saturation
% 1.84/0.64  
% 1.84/0.64  % (26665)Memory used [KB]: 5373
% 1.84/0.64  % (26665)Time elapsed: 0.004 s
% 1.84/0.64  % (26665)Instructions burned: 2 (million)
% 1.84/0.64  % (26665)------------------------------
% 1.84/0.64  % (26665)------------------------------
% 1.84/0.64  % (26658)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)
% 1.84/0.65  % (26659)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)
% 1.84/0.65  % (26681)ott+10_1:1_kws=precedence:tgt=ground:i=482:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/482Mi)
% 2.30/0.65  % (26673)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)
% 2.34/0.66  TRYING [3]
% 2.34/0.67  TRYING [4]
% 2.34/0.67  % (26675)First to succeed.
% 2.34/0.67  TRYING [4]
% 2.34/0.68  TRYING [4]
% 2.34/0.69  % (26675)Refutation found. Thanks to Tanya!
% 2.34/0.69  % SZS status Unsatisfiable for theBenchmark
% 2.34/0.69  % SZS output start Proof for theBenchmark
% See solution above
% 2.34/0.69  % (26675)------------------------------
% 2.34/0.69  % (26675)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 2.34/0.69  % (26675)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 2.34/0.69  % (26675)Termination reason: Refutation
% 2.34/0.69  
% 2.34/0.69  % (26675)Memory used [KB]: 5756
% 2.34/0.69  % (26675)Time elapsed: 0.252 s
% 2.34/0.69  % (26675)Instructions burned: 23 (million)
% 2.34/0.69  % (26675)------------------------------
% 2.34/0.69  % (26675)------------------------------
% 2.34/0.69  % (26656)Success in time 0.336 s
%------------------------------------------------------------------------------