TSTP Solution File: SET927+1 by SnakeForV-SAT---1.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : SnakeForV-SAT---1.0
% Problem  : SET927+1 : TPTP v8.1.0. Released v3.2.0.
% 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 : n019.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8042.1875MB
% OS       : Linux 3.10.0-693.el7.x86_64
% CPULimit : 300s
% WCLimit  : 300s
% DateTime : Wed Aug 31 18:26:07 EDT 2022

% Result   : Theorem 0.20s 0.57s
% Output   : Refutation 0.20s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   10
%            Number of leaves      :    7
% Syntax   : Number of formulae    :   52 (   1 unt;   0 def)
%            Number of atoms       :  183 (  66 equ)
%            Maximal formula atoms :   16 (   3 avg)
%            Number of connectives :  208 (  77   ~;  95   |;  26   &)
%                                         (   8 <=>;   1  =>;   0  <=;   1 <~>)
%            Maximal formula depth :   10 (   5 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :    7 (   5 usr;   5 prp; 0-2 aty)
%            Number of functors    :    6 (   6 usr;   3 con; 0-2 aty)
%            Number of variables   :   45 (  33   !;  12   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f105,plain,
    $false,
    inference(avatar_sat_refutation,[],[f48,f49,f54,f55,f60,f85,f100,f104]) ).

fof(f104,plain,
    ( spl5_1
    | spl5_2
    | ~ spl5_4 ),
    inference(avatar_contradiction_clause,[],[f103]) ).

fof(f103,plain,
    ( $false
    | spl5_1
    | spl5_2
    | ~ spl5_4 ),
    inference(subsumption_resolution,[],[f101,f63]) ).

fof(f63,plain,
    ( set_difference(unordered_pair(sK2,sK2),sK4) = singleton(sK2)
    | spl5_1 ),
    inference(resolution,[],[f35,f38]) ).

fof(f38,plain,
    ( ~ in(sK2,sK4)
    | spl5_1 ),
    inference(avatar_component_clause,[],[f37]) ).

fof(f37,plain,
    ( spl5_1
  <=> in(sK2,sK4) ),
    introduced(avatar_definition,[new_symbols(naming,[spl5_1])]) ).

fof(f35,plain,
    ! [X2,X1] :
      ( in(X1,X2)
      | singleton(X1) = set_difference(unordered_pair(X1,X1),X2) ),
    inference(equality_resolution,[],[f31]) ).

fof(f31,plain,
    ! [X2,X0,X1] :
      ( singleton(X1) = set_difference(unordered_pair(X1,X0),X2)
      | in(X1,X2)
      | X0 != X1 ),
    inference(cnf_transformation,[],[f22]) ).

fof(f22,plain,
    ! [X0,X1,X2] :
      ( ( ( ~ in(X1,X2)
          & ( in(X0,X2)
            | X0 = X1 ) )
        | singleton(X1) != set_difference(unordered_pair(X1,X0),X2) )
      & ( singleton(X1) = set_difference(unordered_pair(X1,X0),X2)
        | in(X1,X2)
        | ( ~ in(X0,X2)
          & X0 != X1 ) ) ),
    inference(flattening,[],[f21]) ).

fof(f21,plain,
    ! [X0,X1,X2] :
      ( ( ( ~ in(X1,X2)
          & ( in(X0,X2)
            | X0 = X1 ) )
        | singleton(X1) != set_difference(unordered_pair(X1,X0),X2) )
      & ( singleton(X1) = set_difference(unordered_pair(X1,X0),X2)
        | in(X1,X2)
        | ( ~ in(X0,X2)
          & X0 != X1 ) ) ),
    inference(nnf_transformation,[],[f8]) ).

fof(f8,plain,
    ! [X0,X1,X2] :
      ( ( ~ in(X1,X2)
        & ( in(X0,X2)
          | X0 = X1 ) )
    <=> singleton(X1) = set_difference(unordered_pair(X1,X0),X2) ),
    inference(rectify,[],[f7]) ).

fof(f7,axiom,
    ! [X1,X0,X2] :
      ( ( ~ in(X0,X2)
        & ( in(X1,X2)
          | X0 = X1 ) )
    <=> set_difference(unordered_pair(X0,X1),X2) = singleton(X0) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l39_zfmisc_1) ).

fof(f101,plain,
    ( set_difference(unordered_pair(sK2,sK2),sK4) != singleton(sK2)
    | spl5_2
    | ~ spl5_4 ),
    inference(backward_demodulation,[],[f43,f53]) ).

fof(f53,plain,
    ( sK2 = sK3
    | ~ spl5_4 ),
    inference(avatar_component_clause,[],[f51]) ).

fof(f51,plain,
    ( spl5_4
  <=> sK2 = sK3 ),
    introduced(avatar_definition,[new_symbols(naming,[spl5_4])]) ).

fof(f43,plain,
    ( set_difference(unordered_pair(sK2,sK3),sK4) != singleton(sK2)
    | spl5_2 ),
    inference(avatar_component_clause,[],[f41]) ).

fof(f41,plain,
    ( spl5_2
  <=> set_difference(unordered_pair(sK2,sK3),sK4) = singleton(sK2) ),
    introduced(avatar_definition,[new_symbols(naming,[spl5_2])]) ).

fof(f100,plain,
    ( spl5_1
    | spl5_2
    | ~ spl5_3 ),
    inference(avatar_contradiction_clause,[],[f99]) ).

fof(f99,plain,
    ( $false
    | spl5_1
    | spl5_2
    | ~ spl5_3 ),
    inference(subsumption_resolution,[],[f95,f43]) ).

fof(f95,plain,
    ( set_difference(unordered_pair(sK2,sK3),sK4) = singleton(sK2)
    | spl5_1
    | ~ spl5_3 ),
    inference(resolution,[],[f87,f38]) ).

fof(f87,plain,
    ( ! [X0] :
        ( in(X0,sK4)
        | singleton(X0) = set_difference(unordered_pair(X0,sK3),sK4) )
    | ~ spl5_3 ),
    inference(resolution,[],[f46,f32]) ).

fof(f32,plain,
    ! [X2,X0,X1] :
      ( ~ in(X0,X2)
      | in(X1,X2)
      | singleton(X1) = set_difference(unordered_pair(X1,X0),X2) ),
    inference(cnf_transformation,[],[f22]) ).

fof(f46,plain,
    ( in(sK3,sK4)
    | ~ spl5_3 ),
    inference(avatar_component_clause,[],[f45]) ).

fof(f45,plain,
    ( spl5_3
  <=> in(sK3,sK4) ),
    introduced(avatar_definition,[new_symbols(naming,[spl5_3])]) ).

fof(f85,plain,
    ( ~ spl5_2
    | spl5_3
    | spl5_4 ),
    inference(avatar_contradiction_clause,[],[f84]) ).

fof(f84,plain,
    ( $false
    | ~ spl5_2
    | spl5_3
    | spl5_4 ),
    inference(subsumption_resolution,[],[f83,f52]) ).

fof(f52,plain,
    ( sK2 != sK3
    | spl5_4 ),
    inference(avatar_component_clause,[],[f51]) ).

fof(f83,plain,
    ( sK2 = sK3
    | ~ spl5_2
    | spl5_3 ),
    inference(subsumption_resolution,[],[f82,f47]) ).

fof(f47,plain,
    ( ~ in(sK3,sK4)
    | spl5_3 ),
    inference(avatar_component_clause,[],[f45]) ).

fof(f82,plain,
    ( in(sK3,sK4)
    | sK2 = sK3
    | ~ spl5_2 ),
    inference(trivial_inequality_removal,[],[f79]) ).

fof(f79,plain,
    ( in(sK3,sK4)
    | sK2 = sK3
    | singleton(sK2) != singleton(sK2)
    | ~ spl5_2 ),
    inference(superposition,[],[f33,f42]) ).

fof(f42,plain,
    ( set_difference(unordered_pair(sK2,sK3),sK4) = singleton(sK2)
    | ~ spl5_2 ),
    inference(avatar_component_clause,[],[f41]) ).

fof(f33,plain,
    ! [X2,X0,X1] :
      ( singleton(X1) != set_difference(unordered_pair(X1,X0),X2)
      | X0 = X1
      | in(X0,X2) ),
    inference(cnf_transformation,[],[f22]) ).

fof(f60,plain,
    ( ~ spl5_1
    | ~ spl5_2 ),
    inference(avatar_split_clause,[],[f59,f41,f37]) ).

fof(f59,plain,
    ( ~ in(sK2,sK4)
    | ~ spl5_2 ),
    inference(trivial_inequality_removal,[],[f58]) ).

fof(f58,plain,
    ( singleton(sK2) != singleton(sK2)
    | ~ in(sK2,sK4)
    | ~ spl5_2 ),
    inference(superposition,[],[f34,f42]) ).

fof(f34,plain,
    ! [X2,X0,X1] :
      ( singleton(X1) != set_difference(unordered_pair(X1,X0),X2)
      | ~ in(X1,X2) ),
    inference(cnf_transformation,[],[f22]) ).

fof(f55,plain,
    ( spl5_1
    | ~ spl5_2
    | ~ spl5_4 ),
    inference(avatar_split_clause,[],[f29,f51,f41,f37]) ).

fof(f29,plain,
    ( sK2 != sK3
    | set_difference(unordered_pair(sK2,sK3),sK4) != singleton(sK2)
    | in(sK2,sK4) ),
    inference(cnf_transformation,[],[f20]) ).

fof(f20,plain,
    ( ( set_difference(unordered_pair(sK2,sK3),sK4) != singleton(sK2)
      | in(sK2,sK4)
      | ( ~ in(sK3,sK4)
        & sK2 != sK3 ) )
    & ( set_difference(unordered_pair(sK2,sK3),sK4) = singleton(sK2)
      | ( ~ in(sK2,sK4)
        & ( in(sK3,sK4)
          | sK2 = sK3 ) ) ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK2,sK3,sK4])],[f18,f19]) ).

fof(f19,plain,
    ( ? [X0,X1,X2] :
        ( ( set_difference(unordered_pair(X0,X1),X2) != singleton(X0)
          | in(X0,X2)
          | ( ~ in(X1,X2)
            & X0 != X1 ) )
        & ( set_difference(unordered_pair(X0,X1),X2) = singleton(X0)
          | ( ~ in(X0,X2)
            & ( in(X1,X2)
              | X0 = X1 ) ) ) )
   => ( ( set_difference(unordered_pair(sK2,sK3),sK4) != singleton(sK2)
        | in(sK2,sK4)
        | ( ~ in(sK3,sK4)
          & sK2 != sK3 ) )
      & ( set_difference(unordered_pair(sK2,sK3),sK4) = singleton(sK2)
        | ( ~ in(sK2,sK4)
          & ( in(sK3,sK4)
            | sK2 = sK3 ) ) ) ) ),
    introduced(choice_axiom,[]) ).

fof(f18,plain,
    ? [X0,X1,X2] :
      ( ( set_difference(unordered_pair(X0,X1),X2) != singleton(X0)
        | in(X0,X2)
        | ( ~ in(X1,X2)
          & X0 != X1 ) )
      & ( set_difference(unordered_pair(X0,X1),X2) = singleton(X0)
        | ( ~ in(X0,X2)
          & ( in(X1,X2)
            | X0 = X1 ) ) ) ),
    inference(flattening,[],[f17]) ).

fof(f17,plain,
    ? [X0,X1,X2] :
      ( ( set_difference(unordered_pair(X0,X1),X2) != singleton(X0)
        | in(X0,X2)
        | ( ~ in(X1,X2)
          & X0 != X1 ) )
      & ( set_difference(unordered_pair(X0,X1),X2) = singleton(X0)
        | ( ~ in(X0,X2)
          & ( in(X1,X2)
            | X0 = X1 ) ) ) ),
    inference(nnf_transformation,[],[f11]) ).

fof(f11,plain,
    ? [X0,X1,X2] :
      ( ( ~ in(X0,X2)
        & ( in(X1,X2)
          | X0 = X1 ) )
    <~> set_difference(unordered_pair(X0,X1),X2) = singleton(X0) ),
    inference(ennf_transformation,[],[f6]) ).

fof(f6,negated_conjecture,
    ~ ! [X1,X2,X0] :
        ( set_difference(unordered_pair(X0,X1),X2) = singleton(X0)
      <=> ( ~ in(X0,X2)
          & ( in(X1,X2)
            | X0 = X1 ) ) ),
    inference(negated_conjecture,[],[f5]) ).

fof(f5,conjecture,
    ! [X1,X2,X0] :
      ( set_difference(unordered_pair(X0,X1),X2) = singleton(X0)
    <=> ( ~ in(X0,X2)
        & ( in(X1,X2)
          | X0 = X1 ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t70_zfmisc_1) ).

fof(f54,plain,
    ( spl5_3
    | spl5_2
    | spl5_4 ),
    inference(avatar_split_clause,[],[f27,f51,f41,f45]) ).

fof(f27,plain,
    ( sK2 = sK3
    | set_difference(unordered_pair(sK2,sK3),sK4) = singleton(sK2)
    | in(sK3,sK4) ),
    inference(cnf_transformation,[],[f20]) ).

fof(f49,plain,
    ( spl5_2
    | ~ spl5_1 ),
    inference(avatar_split_clause,[],[f28,f37,f41]) ).

fof(f28,plain,
    ( ~ in(sK2,sK4)
    | set_difference(unordered_pair(sK2,sK3),sK4) = singleton(sK2) ),
    inference(cnf_transformation,[],[f20]) ).

fof(f48,plain,
    ( spl5_1
    | ~ spl5_2
    | ~ spl5_3 ),
    inference(avatar_split_clause,[],[f30,f45,f41,f37]) ).

fof(f30,plain,
    ( ~ in(sK3,sK4)
    | set_difference(unordered_pair(sK2,sK3),sK4) != singleton(sK2)
    | in(sK2,sK4) ),
    inference(cnf_transformation,[],[f20]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.10/0.13  % Problem    : SET927+1 : TPTP v8.1.0. Released v3.2.0.
% 0.10/0.14  % Command    : vampire --input_syntax tptp --proof tptp --output_axiom_names on --mode portfolio --schedule snake_tptp_sat --cores 0 -t %d %s
% 0.15/0.34  % Computer : n019.cluster.edu
% 0.15/0.34  % Model    : x86_64 x86_64
% 0.15/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.15/0.34  % Memory   : 8042.1875MB
% 0.15/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.15/0.35  % CPULimit   : 300
% 0.15/0.35  % WCLimit    : 300
% 0.15/0.35  % DateTime   : Tue Aug 30 14:34:05 EDT 2022
% 0.15/0.35  % CPUTime    : 
% 0.20/0.55  % (10890)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 (3000ds/176Mi)
% 0.20/0.55  % (10893)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 (3000ds/467Mi)
% 0.20/0.56  % (10890)First to succeed.
% 0.20/0.57  % (10877)dis+10_1:1_fsd=on:sp=occurrence:i=7:si=on:rawr=on:rtra=on_0 on theBenchmark for (3000ds/7Mi)
% 0.20/0.57  % (10874)ott+33_1:4_s2a=on:tgt=ground:i=51:si=on:rawr=on:rtra=on_0 on theBenchmark for (3000ds/51Mi)
% 0.20/0.57  % (10890)Refutation found. Thanks to Tanya!
% 0.20/0.57  % SZS status Theorem for theBenchmark
% 0.20/0.57  % SZS output start Proof for theBenchmark
% See solution above
% 0.20/0.57  % (10890)------------------------------
% 0.20/0.57  % (10890)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 0.20/0.57  % (10890)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 0.20/0.57  % (10890)Termination reason: Refutation
% 0.20/0.57  
% 0.20/0.57  % (10890)Memory used [KB]: 5500
% 0.20/0.57  % (10890)Time elapsed: 0.087 s
% 0.20/0.57  % (10890)Instructions burned: 4 (million)
% 0.20/0.57  % (10890)------------------------------
% 0.20/0.57  % (10890)------------------------------
% 0.20/0.57  % (10869)Success in time 0.217 s
%------------------------------------------------------------------------------