TSTP Solution File: SET912+1 by Vampire---4.8

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%------------------------------------------------------------------------------
% File     : Vampire---4.8
% Problem  : SET912+1 : TPTP v8.1.2. Released v3.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : vampire --ignore_missing on --mode portfolio/casc [--schedule casc_hol_2020] -p tptp -om szs -t %d %s

% Computer : n032.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 : Thu Aug 31 15:46:17 EDT 2023

% Result   : Theorem 0.14s 0.36s
% Output   : Refutation 0.14s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   10
%            Number of leaves      :    5
% Syntax   : Number of formulae    :   25 (   9 unt;   0 def)
%            Number of atoms       :   61 (  19 equ)
%            Maximal formula atoms :    6 (   2 avg)
%            Number of connectives :   59 (  23   ~;  14   |;  17   &)
%                                         (   1 <=>;   4  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    8 (   4 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :    4 (   2 usr;   1 prp; 0-2 aty)
%            Number of functors    :    5 (   5 usr;   3 con; 0-2 aty)
%            Number of variables   :   42 (;  33   !;   9   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f75,plain,
    $false,
    inference(trivial_inequality_removal,[],[f74]) ).

fof(f74,plain,
    unordered_pair(sK0,sK2) != unordered_pair(sK0,sK2),
    inference(backward_demodulation,[],[f59,f73]) ).

fof(f73,plain,
    unordered_pair(sK0,sK2) = set_intersection2(sK1,unordered_pair(sK0,sK2)),
    inference(resolution,[],[f70,f27]) ).

fof(f27,plain,
    in(sK2,sK1),
    inference(cnf_transformation,[],[f19]) ).

fof(f19,plain,
    ( unordered_pair(sK0,sK2) != set_intersection2(unordered_pair(sK0,sK2),sK1)
    & in(sK2,sK1)
    & in(sK0,sK1) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK0,sK1,sK2])],[f15,f18]) ).

fof(f18,plain,
    ( ? [X0,X1,X2] :
        ( unordered_pair(X0,X2) != set_intersection2(unordered_pair(X0,X2),X1)
        & in(X2,X1)
        & in(X0,X1) )
   => ( unordered_pair(sK0,sK2) != set_intersection2(unordered_pair(sK0,sK2),sK1)
      & in(sK2,sK1)
      & in(sK0,sK1) ) ),
    introduced(choice_axiom,[]) ).

fof(f15,plain,
    ? [X0,X1,X2] :
      ( unordered_pair(X0,X2) != set_intersection2(unordered_pair(X0,X2),X1)
      & in(X2,X1)
      & in(X0,X1) ),
    inference(flattening,[],[f14]) ).

fof(f14,plain,
    ? [X0,X1,X2] :
      ( unordered_pair(X0,X2) != set_intersection2(unordered_pair(X0,X2),X1)
      & in(X2,X1)
      & in(X0,X1) ),
    inference(ennf_transformation,[],[f11]) ).

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

fof(f10,conjecture,
    ! [X0,X1,X2] :
      ( ( in(X2,X1)
        & in(X0,X1) )
     => unordered_pair(X0,X2) = set_intersection2(unordered_pair(X0,X2),X1) ),
    file('/export/starexec/sandbox2/tmp/tmp.2e0zvnSloX/Vampire---4.8_26861',t53_zfmisc_1) ).

fof(f70,plain,
    ! [X0] :
      ( ~ in(X0,sK1)
      | unordered_pair(sK0,X0) = set_intersection2(sK1,unordered_pair(sK0,X0)) ),
    inference(forward_demodulation,[],[f66,f32]) ).

fof(f32,plain,
    ! [X0,X1] : set_intersection2(X0,X1) = set_intersection2(X1,X0),
    inference(cnf_transformation,[],[f3]) ).

fof(f3,axiom,
    ! [X0,X1] : set_intersection2(X0,X1) = set_intersection2(X1,X0),
    file('/export/starexec/sandbox2/tmp/tmp.2e0zvnSloX/Vampire---4.8_26861',commutativity_k3_xboole_0) ).

fof(f66,plain,
    ! [X0] :
      ( ~ in(X0,sK1)
      | unordered_pair(sK0,X0) = set_intersection2(unordered_pair(sK0,X0),sK1) ),
    inference(resolution,[],[f63,f26]) ).

fof(f26,plain,
    in(sK0,sK1),
    inference(cnf_transformation,[],[f19]) ).

fof(f63,plain,
    ! [X8,X6,X7] :
      ( ~ in(X8,X7)
      | ~ in(X6,X7)
      | unordered_pair(X8,X6) = set_intersection2(unordered_pair(X8,X6),X7) ),
    inference(resolution,[],[f37,f33]) ).

fof(f33,plain,
    ! [X0,X1] :
      ( ~ subset(X0,X1)
      | set_intersection2(X0,X1) = X0 ),
    inference(cnf_transformation,[],[f16]) ).

fof(f16,plain,
    ! [X0,X1] :
      ( set_intersection2(X0,X1) = X0
      | ~ subset(X0,X1) ),
    inference(ennf_transformation,[],[f8]) ).

fof(f8,axiom,
    ! [X0,X1] :
      ( subset(X0,X1)
     => set_intersection2(X0,X1) = X0 ),
    file('/export/starexec/sandbox2/tmp/tmp.2e0zvnSloX/Vampire---4.8_26861',t28_xboole_1) ).

fof(f37,plain,
    ! [X2,X0,X1] :
      ( subset(unordered_pair(X0,X1),X2)
      | ~ in(X1,X2)
      | ~ in(X0,X2) ),
    inference(cnf_transformation,[],[f21]) ).

fof(f21,plain,
    ! [X0,X1,X2] :
      ( ( subset(unordered_pair(X0,X1),X2)
        | ~ in(X1,X2)
        | ~ in(X0,X2) )
      & ( ( in(X1,X2)
          & in(X0,X2) )
        | ~ subset(unordered_pair(X0,X1),X2) ) ),
    inference(flattening,[],[f20]) ).

fof(f20,plain,
    ! [X0,X1,X2] :
      ( ( subset(unordered_pair(X0,X1),X2)
        | ~ in(X1,X2)
        | ~ in(X0,X2) )
      & ( ( in(X1,X2)
          & in(X0,X2) )
        | ~ subset(unordered_pair(X0,X1),X2) ) ),
    inference(nnf_transformation,[],[f9]) ).

fof(f9,axiom,
    ! [X0,X1,X2] :
      ( subset(unordered_pair(X0,X1),X2)
    <=> ( in(X1,X2)
        & in(X0,X2) ) ),
    file('/export/starexec/sandbox2/tmp/tmp.2e0zvnSloX/Vampire---4.8_26861',t38_zfmisc_1) ).

fof(f59,plain,
    unordered_pair(sK0,sK2) != set_intersection2(sK1,unordered_pair(sK0,sK2)),
    inference(superposition,[],[f28,f32]) ).

fof(f28,plain,
    unordered_pair(sK0,sK2) != set_intersection2(unordered_pair(sK0,sK2),sK1),
    inference(cnf_transformation,[],[f19]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.10  % Problem    : SET912+1 : TPTP v8.1.2. Released v3.2.0.
% 0.00/0.11  % Command    : vampire --ignore_missing on --mode portfolio/casc [--schedule casc_hol_2020] -p tptp -om szs -t %d %s
% 0.14/0.31  % Computer : n032.cluster.edu
% 0.14/0.31  % Model    : x86_64 x86_64
% 0.14/0.31  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/0.31  % Memory   : 8042.1875MB
% 0.14/0.31  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.14/0.31  % CPULimit   : 300
% 0.14/0.31  % WCLimit    : 300
% 0.14/0.31  % DateTime   : Sat Aug 26 10:51:14 EDT 2023
% 0.14/0.31  % CPUTime    : 
% 0.14/0.31  This is a FOF_THM_RFO_SEQ problem
% 0.14/0.31  Running vampire_casc2023 --mode casc -m 16384 --cores 7 -t 300 /export/starexec/sandbox2/tmp/tmp.2e0zvnSloX/Vampire---4.8_26861
% 0.14/0.31  % (27039)Running in auto input_syntax mode. Trying TPTP
% 0.14/0.34  % (27040)lrs+10_11_cond=on:drc=off:flr=on:fsr=off:gsp=on:gs=on:gsem=off:lma=on:msp=off:nm=4:nwc=1.5:nicw=on:sas=z3:sims=off:sp=scramble:stl=188_1169 on Vampire---4 for (1169ds/0Mi)
% 0.14/0.36  % (27044)ott+1003_4:1_av=off:cond=on:drc=off:fsd=off:fsr=off:fde=none:gsp=on:nm=2:nwc=1.5:sos=all:sp=reverse_arity:tgt=full_871 on Vampire---4 for (871ds/0Mi)
% 0.14/0.36  % (27043)lrs+3_20_av=off:bd=preordered:drc=off:fsd=off:fsr=off:fde=unused:irw=on:lcm=reverse:sos=theory:stl=315_961 on Vampire---4 for (961ds/0Mi)
% 0.14/0.36  % (27046)ott+11_14_av=off:bs=on:bsr=on:cond=on:flr=on:fsd=off:fde=unused:gsp=on:nm=4:nwc=1.5:tgt=full_501 on Vampire---4 for (501ds/0Mi)
% 0.14/0.36  % (27045)lrs-11_32_av=off:bd=off:bs=on:bsr=on:drc=off:flr=on:fsd=off:fsr=off:fde=none:gsp=on:irw=on:lcm=predicate:nm=4:sp=scramble:stl=125_825 on Vampire---4 for (825ds/0Mi)
% 0.14/0.36  % (27043)First to succeed.
% 0.14/0.36  % (27044)Also succeeded, but the first one will report.
% 0.14/0.36  % (27045)Also succeeded, but the first one will report.
% 0.14/0.36  % (27043)Refutation found. Thanks to Tanya!
% 0.14/0.36  % SZS status Theorem for Vampire---4
% 0.14/0.36  % SZS output start Proof for Vampire---4
% See solution above
% 0.14/0.36  % (27043)------------------------------
% 0.14/0.36  % (27043)Version: Vampire 4.7 (commit 05ef610bd on 2023-06-21 19:03:17 +0100)
% 0.14/0.36  % (27043)Linked with Z3 4.9.1.0 6ed071b44407cf6623b8d3c0dceb2a8fb7040cee z3-4.8.4-6427-g6ed071b44
% 0.14/0.36  % (27043)Termination reason: Refutation
% 0.14/0.36  
% 0.14/0.36  % (27043)Memory used [KB]: 895
% 0.14/0.36  % (27043)Time elapsed: 0.004 s
% 0.14/0.36  % (27043)------------------------------
% 0.14/0.36  % (27043)------------------------------
% 0.14/0.36  % (27039)Success in time 0.049 s
% 0.14/0.36  % Vampire---4.8 exiting
%------------------------------------------------------------------------------