TSTP Solution File: SET918+1 by Vampire-SAT---4.8

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Vampire-SAT---4.8
% Problem  : SET918+1 : TPTP v8.1.2. Released v3.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : vampire --mode casc_sat -m 16384 --cores 7 -t %d %s

% Computer : n021.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 Apr 30 15:13:59 EDT 2024

% Result   : Theorem 0.22s 0.39s
% Output   : Refutation 0.22s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   12
%            Number of leaves      :   10
% Syntax   : Number of formulae    :   48 (  10 unt;   0 def)
%            Number of atoms       :  258 (  99 equ)
%            Maximal formula atoms :   14 (   5 avg)
%            Number of connectives :  327 ( 117   ~; 119   |;  75   &)
%                                         (  12 <=>;   4  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   11 (   7 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :    5 (   3 usr;   1 prp; 0-3 aty)
%            Number of functors    :    9 (   9 usr;   3 con; 0-3 aty)
%            Number of variables   :  132 ( 115   !;  17   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f194,plain,
    $false,
    inference(trivial_inequality_removal,[],[f193]) ).

fof(f193,plain,
    sK2 != sK2,
    inference(superposition,[],[f43,f178]) ).

fof(f178,plain,
    sK2 = sK3,
    inference(resolution,[],[f175,f42]) ).

fof(f42,plain,
    in(sK3,sK4),
    inference(cnf_transformation,[],[f20]) ).

fof(f20,plain,
    ( sK2 != sK3
    & in(sK3,sK4)
    & singleton(sK2) = set_intersection2(unordered_pair(sK2,sK3),sK4) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK2,sK3,sK4])],[f13,f19]) ).

fof(f19,plain,
    ( ? [X0,X1,X2] :
        ( X0 != X1
        & in(X1,X2)
        & singleton(X0) = set_intersection2(unordered_pair(X0,X1),X2) )
   => ( sK2 != sK3
      & in(sK3,sK4)
      & singleton(sK2) = set_intersection2(unordered_pair(sK2,sK3),sK4) ) ),
    introduced(choice_axiom,[]) ).

fof(f13,plain,
    ? [X0,X1,X2] :
      ( X0 != X1
      & in(X1,X2)
      & singleton(X0) = set_intersection2(unordered_pair(X0,X1),X2) ),
    inference(ennf_transformation,[],[f11]) ).

fof(f11,negated_conjecture,
    ~ ! [X0,X1,X2] :
        ~ ( X0 != X1
          & in(X1,X2)
          & singleton(X0) = set_intersection2(unordered_pair(X0,X1),X2) ),
    inference(negated_conjecture,[],[f10]) ).

fof(f10,conjecture,
    ! [X0,X1,X2] :
      ~ ( X0 != X1
        & in(X1,X2)
        & singleton(X0) = set_intersection2(unordered_pair(X0,X1),X2) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t59_zfmisc_1) ).

fof(f175,plain,
    ( ~ in(sK3,sK4)
    | sK2 = sK3 ),
    inference(resolution,[],[f172,f72]) ).

fof(f72,plain,
    ! [X3,X0] :
      ( ~ in(X3,singleton(X0))
      | X0 = X3 ),
    inference(equality_resolution,[],[f48]) ).

fof(f48,plain,
    ! [X3,X0,X1] :
      ( X0 = X3
      | ~ in(X3,X1)
      | singleton(X0) != X1 ),
    inference(cnf_transformation,[],[f24]) ).

fof(f24,plain,
    ! [X0,X1] :
      ( ( singleton(X0) = X1
        | ( ( sK5(X0,X1) != X0
            | ~ in(sK5(X0,X1),X1) )
          & ( sK5(X0,X1) = X0
            | in(sK5(X0,X1),X1) ) ) )
      & ( ! [X3] :
            ( ( in(X3,X1)
              | X0 != X3 )
            & ( X0 = X3
              | ~ in(X3,X1) ) )
        | singleton(X0) != X1 ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK5])],[f22,f23]) ).

fof(f23,plain,
    ! [X0,X1] :
      ( ? [X2] :
          ( ( X0 != X2
            | ~ in(X2,X1) )
          & ( X0 = X2
            | in(X2,X1) ) )
     => ( ( sK5(X0,X1) != X0
          | ~ in(sK5(X0,X1),X1) )
        & ( sK5(X0,X1) = X0
          | in(sK5(X0,X1),X1) ) ) ),
    introduced(choice_axiom,[]) ).

fof(f22,plain,
    ! [X0,X1] :
      ( ( singleton(X0) = X1
        | ? [X2] :
            ( ( X0 != X2
              | ~ in(X2,X1) )
            & ( X0 = X2
              | in(X2,X1) ) ) )
      & ( ! [X3] :
            ( ( in(X3,X1)
              | X0 != X3 )
            & ( X0 = X3
              | ~ in(X3,X1) ) )
        | singleton(X0) != X1 ) ),
    inference(rectify,[],[f21]) ).

fof(f21,plain,
    ! [X0,X1] :
      ( ( singleton(X0) = X1
        | ? [X2] :
            ( ( X0 != X2
              | ~ in(X2,X1) )
            & ( X0 = X2
              | in(X2,X1) ) ) )
      & ( ! [X2] :
            ( ( in(X2,X1)
              | X0 != X2 )
            & ( X0 = X2
              | ~ in(X2,X1) ) )
        | singleton(X0) != X1 ) ),
    inference(nnf_transformation,[],[f4]) ).

fof(f4,axiom,
    ! [X0,X1] :
      ( singleton(X0) = X1
    <=> ! [X2] :
          ( in(X2,X1)
        <=> X0 = X2 ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d1_tarski) ).

fof(f172,plain,
    ( in(sK3,singleton(sK2))
    | ~ in(sK3,sK4) ),
    inference(resolution,[],[f168,f104]) ).

fof(f104,plain,
    ! [X0,X1] : in(X0,unordered_pair(X1,X0)),
    inference(resolution,[],[f73,f75]) ).

fof(f75,plain,
    ! [X0,X1] : sP0(X1,X0,unordered_pair(X0,X1)),
    inference(equality_resolution,[],[f58]) ).

fof(f58,plain,
    ! [X2,X0,X1] :
      ( sP0(X1,X0,X2)
      | unordered_pair(X0,X1) != X2 ),
    inference(cnf_transformation,[],[f30]) ).

fof(f30,plain,
    ! [X0,X1,X2] :
      ( ( unordered_pair(X0,X1) = X2
        | ~ sP0(X1,X0,X2) )
      & ( sP0(X1,X0,X2)
        | unordered_pair(X0,X1) != X2 ) ),
    inference(nnf_transformation,[],[f16]) ).

fof(f16,plain,
    ! [X0,X1,X2] :
      ( unordered_pair(X0,X1) = X2
    <=> sP0(X1,X0,X2) ),
    inference(definition_folding,[],[f5,f15]) ).

fof(f15,plain,
    ! [X1,X0,X2] :
      ( sP0(X1,X0,X2)
    <=> ! [X3] :
          ( in(X3,X2)
        <=> ( X1 = X3
            | X0 = X3 ) ) ),
    introduced(predicate_definition_introduction,[new_symbols(naming,[sP0])]) ).

fof(f5,axiom,
    ! [X0,X1,X2] :
      ( unordered_pair(X0,X1) = X2
    <=> ! [X3] :
          ( in(X3,X2)
        <=> ( X1 = X3
            | X0 = X3 ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d2_tarski) ).

fof(f73,plain,
    ! [X2,X1,X4] :
      ( ~ sP0(X4,X1,X2)
      | in(X4,X2) ),
    inference(equality_resolution,[],[f54]) ).

fof(f54,plain,
    ! [X2,X0,X1,X4] :
      ( in(X4,X2)
      | X0 != X4
      | ~ sP0(X0,X1,X2) ),
    inference(cnf_transformation,[],[f29]) ).

fof(f29,plain,
    ! [X0,X1,X2] :
      ( ( sP0(X0,X1,X2)
        | ( ( ( sK6(X0,X1,X2) != X0
              & sK6(X0,X1,X2) != X1 )
            | ~ in(sK6(X0,X1,X2),X2) )
          & ( sK6(X0,X1,X2) = X0
            | sK6(X0,X1,X2) = X1
            | in(sK6(X0,X1,X2),X2) ) ) )
      & ( ! [X4] :
            ( ( in(X4,X2)
              | ( X0 != X4
                & X1 != X4 ) )
            & ( X0 = X4
              | X1 = X4
              | ~ in(X4,X2) ) )
        | ~ sP0(X0,X1,X2) ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK6])],[f27,f28]) ).

fof(f28,plain,
    ! [X0,X1,X2] :
      ( ? [X3] :
          ( ( ( X0 != X3
              & X1 != X3 )
            | ~ in(X3,X2) )
          & ( X0 = X3
            | X1 = X3
            | in(X3,X2) ) )
     => ( ( ( sK6(X0,X1,X2) != X0
            & sK6(X0,X1,X2) != X1 )
          | ~ in(sK6(X0,X1,X2),X2) )
        & ( sK6(X0,X1,X2) = X0
          | sK6(X0,X1,X2) = X1
          | in(sK6(X0,X1,X2),X2) ) ) ),
    introduced(choice_axiom,[]) ).

fof(f27,plain,
    ! [X0,X1,X2] :
      ( ( sP0(X0,X1,X2)
        | ? [X3] :
            ( ( ( X0 != X3
                & X1 != X3 )
              | ~ in(X3,X2) )
            & ( X0 = X3
              | X1 = X3
              | in(X3,X2) ) ) )
      & ( ! [X4] :
            ( ( in(X4,X2)
              | ( X0 != X4
                & X1 != X4 ) )
            & ( X0 = X4
              | X1 = X4
              | ~ in(X4,X2) ) )
        | ~ sP0(X0,X1,X2) ) ),
    inference(rectify,[],[f26]) ).

fof(f26,plain,
    ! [X1,X0,X2] :
      ( ( sP0(X1,X0,X2)
        | ? [X3] :
            ( ( ( X1 != X3
                & X0 != X3 )
              | ~ in(X3,X2) )
            & ( X1 = X3
              | X0 = X3
              | in(X3,X2) ) ) )
      & ( ! [X3] :
            ( ( in(X3,X2)
              | ( X1 != X3
                & X0 != X3 ) )
            & ( X1 = X3
              | X0 = X3
              | ~ in(X3,X2) ) )
        | ~ sP0(X1,X0,X2) ) ),
    inference(flattening,[],[f25]) ).

fof(f25,plain,
    ! [X1,X0,X2] :
      ( ( sP0(X1,X0,X2)
        | ? [X3] :
            ( ( ( X1 != X3
                & X0 != X3 )
              | ~ in(X3,X2) )
            & ( X1 = X3
              | X0 = X3
              | in(X3,X2) ) ) )
      & ( ! [X3] :
            ( ( in(X3,X2)
              | ( X1 != X3
                & X0 != X3 ) )
            & ( X1 = X3
              | X0 = X3
              | ~ in(X3,X2) ) )
        | ~ sP0(X1,X0,X2) ) ),
    inference(nnf_transformation,[],[f15]) ).

fof(f168,plain,
    ! [X0] :
      ( ~ in(X0,unordered_pair(sK2,sK3))
      | ~ in(X0,sK4)
      | in(X0,singleton(sK2)) ),
    inference(resolution,[],[f62,f85]) ).

fof(f85,plain,
    sP1(sK4,unordered_pair(sK2,sK3),singleton(sK2)),
    inference(superposition,[],[f76,f41]) ).

fof(f41,plain,
    singleton(sK2) = set_intersection2(unordered_pair(sK2,sK3),sK4),
    inference(cnf_transformation,[],[f20]) ).

fof(f76,plain,
    ! [X0,X1] : sP1(X1,X0,set_intersection2(X0,X1)),
    inference(equality_resolution,[],[f66]) ).

fof(f66,plain,
    ! [X2,X0,X1] :
      ( sP1(X1,X0,X2)
      | set_intersection2(X0,X1) != X2 ),
    inference(cnf_transformation,[],[f36]) ).

fof(f36,plain,
    ! [X0,X1,X2] :
      ( ( set_intersection2(X0,X1) = X2
        | ~ sP1(X1,X0,X2) )
      & ( sP1(X1,X0,X2)
        | set_intersection2(X0,X1) != X2 ) ),
    inference(nnf_transformation,[],[f18]) ).

fof(f18,plain,
    ! [X0,X1,X2] :
      ( set_intersection2(X0,X1) = X2
    <=> sP1(X1,X0,X2) ),
    inference(definition_folding,[],[f6,f17]) ).

fof(f17,plain,
    ! [X1,X0,X2] :
      ( sP1(X1,X0,X2)
    <=> ! [X3] :
          ( in(X3,X2)
        <=> ( in(X3,X1)
            & in(X3,X0) ) ) ),
    introduced(predicate_definition_introduction,[new_symbols(naming,[sP1])]) ).

fof(f6,axiom,
    ! [X0,X1,X2] :
      ( set_intersection2(X0,X1) = X2
    <=> ! [X3] :
          ( in(X3,X2)
        <=> ( in(X3,X1)
            & in(X3,X0) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d3_xboole_0) ).

fof(f62,plain,
    ! [X2,X0,X1,X4] :
      ( ~ sP1(X0,X1,X2)
      | ~ in(X4,X0)
      | ~ in(X4,X1)
      | in(X4,X2) ),
    inference(cnf_transformation,[],[f35]) ).

fof(f35,plain,
    ! [X0,X1,X2] :
      ( ( sP1(X0,X1,X2)
        | ( ( ~ in(sK7(X0,X1,X2),X0)
            | ~ in(sK7(X0,X1,X2),X1)
            | ~ in(sK7(X0,X1,X2),X2) )
          & ( ( in(sK7(X0,X1,X2),X0)
              & in(sK7(X0,X1,X2),X1) )
            | in(sK7(X0,X1,X2),X2) ) ) )
      & ( ! [X4] :
            ( ( in(X4,X2)
              | ~ in(X4,X0)
              | ~ in(X4,X1) )
            & ( ( in(X4,X0)
                & in(X4,X1) )
              | ~ in(X4,X2) ) )
        | ~ sP1(X0,X1,X2) ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK7])],[f33,f34]) ).

fof(f34,plain,
    ! [X0,X1,X2] :
      ( ? [X3] :
          ( ( ~ in(X3,X0)
            | ~ in(X3,X1)
            | ~ in(X3,X2) )
          & ( ( in(X3,X0)
              & in(X3,X1) )
            | in(X3,X2) ) )
     => ( ( ~ in(sK7(X0,X1,X2),X0)
          | ~ in(sK7(X0,X1,X2),X1)
          | ~ in(sK7(X0,X1,X2),X2) )
        & ( ( in(sK7(X0,X1,X2),X0)
            & in(sK7(X0,X1,X2),X1) )
          | in(sK7(X0,X1,X2),X2) ) ) ),
    introduced(choice_axiom,[]) ).

fof(f33,plain,
    ! [X0,X1,X2] :
      ( ( sP1(X0,X1,X2)
        | ? [X3] :
            ( ( ~ in(X3,X0)
              | ~ in(X3,X1)
              | ~ in(X3,X2) )
            & ( ( in(X3,X0)
                & in(X3,X1) )
              | in(X3,X2) ) ) )
      & ( ! [X4] :
            ( ( in(X4,X2)
              | ~ in(X4,X0)
              | ~ in(X4,X1) )
            & ( ( in(X4,X0)
                & in(X4,X1) )
              | ~ in(X4,X2) ) )
        | ~ sP1(X0,X1,X2) ) ),
    inference(rectify,[],[f32]) ).

fof(f32,plain,
    ! [X1,X0,X2] :
      ( ( sP1(X1,X0,X2)
        | ? [X3] :
            ( ( ~ in(X3,X1)
              | ~ in(X3,X0)
              | ~ in(X3,X2) )
            & ( ( in(X3,X1)
                & in(X3,X0) )
              | in(X3,X2) ) ) )
      & ( ! [X3] :
            ( ( in(X3,X2)
              | ~ in(X3,X1)
              | ~ in(X3,X0) )
            & ( ( in(X3,X1)
                & in(X3,X0) )
              | ~ in(X3,X2) ) )
        | ~ sP1(X1,X0,X2) ) ),
    inference(flattening,[],[f31]) ).

fof(f31,plain,
    ! [X1,X0,X2] :
      ( ( sP1(X1,X0,X2)
        | ? [X3] :
            ( ( ~ in(X3,X1)
              | ~ in(X3,X0)
              | ~ in(X3,X2) )
            & ( ( in(X3,X1)
                & in(X3,X0) )
              | in(X3,X2) ) ) )
      & ( ! [X3] :
            ( ( in(X3,X2)
              | ~ in(X3,X1)
              | ~ in(X3,X0) )
            & ( ( in(X3,X1)
                & in(X3,X0) )
              | ~ in(X3,X2) ) )
        | ~ sP1(X1,X0,X2) ) ),
    inference(nnf_transformation,[],[f17]) ).

fof(f43,plain,
    sK2 != sK3,
    inference(cnf_transformation,[],[f20]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.13  % Problem    : SET918+1 : TPTP v8.1.2. Released v3.2.0.
% 0.03/0.15  % Command    : vampire --mode casc_sat -m 16384 --cores 7 -t %d %s
% 0.14/0.37  % Computer : n021.cluster.edu
% 0.14/0.37  % Model    : x86_64 x86_64
% 0.14/0.37  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/0.37  % Memory   : 8042.1875MB
% 0.14/0.37  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.14/0.37  % CPULimit   : 300
% 0.14/0.37  % WCLimit    : 300
% 0.14/0.37  % DateTime   : Tue Apr 30 01:36:40 EDT 2024
% 0.14/0.37  % CPUTime    : 
% 0.22/0.37  % (17100)Running in auto input_syntax mode. Trying TPTP
% 0.22/0.39  % (17104)fmb+10_1_bce=on:fmbsr=1.5:nm=32_533 on theBenchmark for (533ds/0Mi)
% 0.22/0.39  % (17105)ott+10_10:1_add=off:afr=on:amm=off:anc=all:bd=off:bs=on:fsr=off:irw=on:lma=on:msp=off:nm=4:nwc=4.0:sac=on:sp=reverse_frequency_531 on theBenchmark for (531ds/0Mi)
% 0.22/0.39  % (17103)WARNING: value z3 for option sas not known
% 0.22/0.39  % (17107)ott+1_64_av=off:bd=off:bce=on:fsd=off:fde=unused:gsp=on:irw=on:lcm=predicate:lma=on:nm=2:nwc=1.1:sims=off:urr=on_497 on theBenchmark for (497ds/0Mi)
% 0.22/0.39  % (17106)ott-10_8_av=off:bd=preordered:bs=on:fsd=off:fsr=off:fde=unused:irw=on:lcm=predicate:lma=on:nm=4:nwc=1.7:sp=frequency_522 on theBenchmark for (522ds/0Mi)
% 0.22/0.39  % (17103)dis+2_11_add=large:afr=on:amm=off:bd=off:bce=on:fsd=off:fde=none:gs=on:gsaa=full_model:gsem=off:irw=on:msp=off:nm=4:nwc=1.3:sas=z3:sims=off:sac=on:sp=reverse_arity_569 on theBenchmark for (569ds/0Mi)
% 0.22/0.39  TRYING [1]
% 0.22/0.39  TRYING [2]
% 0.22/0.39  TRYING [3]
% 0.22/0.39  % (17101)fmb+10_1_bce=on:fmbas=function:fmbsr=1.2:fde=unused:nm=0_846 on theBenchmark for (846ds/0Mi)
% 0.22/0.39  % (17106)First to succeed.
% 0.22/0.39  % (17102)fmb+10_1_bce=on:fmbdsb=on:fmbes=contour:fmbswr=3:fde=none:nm=0_793 on theBenchmark for (793ds/0Mi)
% 0.22/0.39  % (17103)Also succeeded, but the first one will report.
% 0.22/0.39  TRYING [4]
% 0.22/0.39  % (17106)Refutation found. Thanks to Tanya!
% 0.22/0.39  % SZS status Theorem for theBenchmark
% 0.22/0.39  % SZS output start Proof for theBenchmark
% See solution above
% 0.22/0.39  % (17106)------------------------------
% 0.22/0.39  % (17106)Version: Vampire 4.8 (commit 8e9376e55 on 2024-01-18 13:49:33 +0100)
% 0.22/0.39  % (17106)Termination reason: Refutation
% 0.22/0.39  
% 0.22/0.39  % (17106)Memory used [KB]: 847
% 0.22/0.39  % (17106)Time elapsed: 0.007 s
% 0.22/0.39  % (17106)Instructions burned: 10 (million)
% 0.22/0.39  % (17106)------------------------------
% 0.22/0.39  % (17106)------------------------------
% 0.22/0.39  % (17100)Success in time 0.022 s
%------------------------------------------------------------------------------