TSTP Solution File: SET917+1 by Vampire---4.8

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%------------------------------------------------------------------------------
% File     : Vampire---4.8
% Problem  : SET917+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 : 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 : Thu Aug 31 15:46:19 EDT 2023

% Result   : Theorem 0.22s 0.42s
% Output   : Refutation 0.22s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   10
%            Number of leaves      :    7
% Syntax   : Number of formulae    :   26 (  14 unt;   0 def)
%            Number of atoms       :   40 (  19 equ)
%            Maximal formula atoms :    4 (   1 avg)
%            Number of connectives :   30 (  16   ~;   7   |;   4   &)
%                                         (   0 <=>;   3  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    6 (   3 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :    4 (   2 usr;   1 prp; 0-2 aty)
%            Number of functors    :    6 (   6 usr;   4 con; 0-2 aty)
%            Number of variables   :   25 (;  21   !;   4   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f50,plain,
    $false,
    inference(subsumption_resolution,[],[f49,f35]) ).

fof(f35,plain,
    sF4 != sF5,
    inference(definition_folding,[],[f24,f34,f33,f33]) ).

fof(f33,plain,
    singleton(sK0) = sF4,
    introduced(function_definition,[]) ).

fof(f34,plain,
    set_intersection2(sF4,sK1) = sF5,
    introduced(function_definition,[]) ).

fof(f24,plain,
    singleton(sK0) != set_intersection2(singleton(sK0),sK1),
    inference(cnf_transformation,[],[f18]) ).

fof(f18,plain,
    ( singleton(sK0) != set_intersection2(singleton(sK0),sK1)
    & ~ disjoint(singleton(sK0),sK1) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK0,sK1])],[f12,f17]) ).

fof(f17,plain,
    ( ? [X0,X1] :
        ( singleton(X0) != set_intersection2(singleton(X0),X1)
        & ~ disjoint(singleton(X0),X1) )
   => ( singleton(sK0) != set_intersection2(singleton(sK0),sK1)
      & ~ disjoint(singleton(sK0),sK1) ) ),
    introduced(choice_axiom,[]) ).

fof(f12,plain,
    ? [X0,X1] :
      ( singleton(X0) != set_intersection2(singleton(X0),X1)
      & ~ disjoint(singleton(X0),X1) ),
    inference(ennf_transformation,[],[f10]) ).

fof(f10,negated_conjecture,
    ~ ! [X0,X1] :
        ( singleton(X0) = set_intersection2(singleton(X0),X1)
        | disjoint(singleton(X0),X1) ),
    inference(negated_conjecture,[],[f9]) ).

fof(f9,conjecture,
    ! [X0,X1] :
      ( singleton(X0) = set_intersection2(singleton(X0),X1)
      | disjoint(singleton(X0),X1) ),
    file('/export/starexec/sandbox/tmp/tmp.20GkEVVFOt/Vampire---4.8_19776',t58_zfmisc_1) ).

fof(f49,plain,
    sF4 = sF5,
    inference(backward_demodulation,[],[f37,f48]) ).

fof(f48,plain,
    sF4 = set_intersection2(sK1,sF4),
    inference(forward_demodulation,[],[f47,f33]) ).

fof(f47,plain,
    singleton(sK0) = set_intersection2(sK1,singleton(sK0)),
    inference(resolution,[],[f29,f43]) ).

fof(f43,plain,
    in(sK0,sK1),
    inference(resolution,[],[f42,f36]) ).

fof(f36,plain,
    ~ disjoint(sF4,sK1),
    inference(definition_folding,[],[f23,f33]) ).

fof(f23,plain,
    ~ disjoint(singleton(sK0),sK1),
    inference(cnf_transformation,[],[f18]) ).

fof(f42,plain,
    ! [X0] :
      ( disjoint(sF4,X0)
      | in(sK0,X0) ),
    inference(superposition,[],[f27,f33]) ).

fof(f27,plain,
    ! [X0,X1] :
      ( disjoint(singleton(X0),X1)
      | in(X0,X1) ),
    inference(cnf_transformation,[],[f13]) ).

fof(f13,plain,
    ! [X0,X1] :
      ( disjoint(singleton(X0),X1)
      | in(X0,X1) ),
    inference(ennf_transformation,[],[f4]) ).

fof(f4,axiom,
    ! [X0,X1] :
      ( ~ in(X0,X1)
     => disjoint(singleton(X0),X1) ),
    file('/export/starexec/sandbox/tmp/tmp.20GkEVVFOt/Vampire---4.8_19776',l28_zfmisc_1) ).

fof(f29,plain,
    ! [X0,X1] :
      ( ~ in(X0,X1)
      | singleton(X0) = set_intersection2(X1,singleton(X0)) ),
    inference(cnf_transformation,[],[f15]) ).

fof(f15,plain,
    ! [X0,X1] :
      ( singleton(X0) = set_intersection2(X1,singleton(X0))
      | ~ in(X0,X1) ),
    inference(ennf_transformation,[],[f5]) ).

fof(f5,axiom,
    ! [X0,X1] :
      ( in(X0,X1)
     => singleton(X0) = set_intersection2(X1,singleton(X0)) ),
    file('/export/starexec/sandbox/tmp/tmp.20GkEVVFOt/Vampire---4.8_19776',l32_zfmisc_1) ).

fof(f37,plain,
    sF5 = set_intersection2(sK1,sF4),
    inference(superposition,[],[f26,f34]) ).

fof(f26,plain,
    ! [X0,X1] : set_intersection2(X0,X1) = set_intersection2(X1,X0),
    inference(cnf_transformation,[],[f2]) ).

fof(f2,axiom,
    ! [X0,X1] : set_intersection2(X0,X1) = set_intersection2(X1,X0),
    file('/export/starexec/sandbox/tmp/tmp.20GkEVVFOt/Vampire---4.8_19776',commutativity_k3_xboole_0) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.12/0.14  % Problem    : SET917+1 : TPTP v8.1.2. Released v3.2.0.
% 0.12/0.15  % Command    : vampire --ignore_missing on --mode portfolio/casc [--schedule casc_hol_2020] -p tptp -om szs -t %d %s
% 0.14/0.36  % Computer : n004.cluster.edu
% 0.14/0.36  % Model    : x86_64 x86_64
% 0.14/0.36  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/0.36  % Memory   : 8042.1875MB
% 0.14/0.36  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.14/0.36  % CPULimit   : 300
% 0.14/0.36  % WCLimit    : 300
% 0.14/0.36  % DateTime   : Sat Aug 26 12:07:37 EDT 2023
% 0.14/0.37  % CPUTime    : 
% 0.14/0.37  This is a FOF_THM_RFO_SEQ problem
% 0.14/0.37  Running vampire_casc2023 --mode casc -m 16384 --cores 7 -t 300 /export/starexec/sandbox/tmp/tmp.20GkEVVFOt/Vampire---4.8_19776
% 0.14/0.37  % (19919)Running in auto input_syntax mode. Trying TPTP
% 0.22/0.42  % (19926)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)
% 0.22/0.42  % (19926)First to succeed.
% 0.22/0.42  % (19926)Refutation found. Thanks to Tanya!
% 0.22/0.42  % SZS status Theorem for Vampire---4
% 0.22/0.42  % SZS output start Proof for Vampire---4
% See solution above
% 0.22/0.42  % (19926)------------------------------
% 0.22/0.42  % (19926)Version: Vampire 4.7 (commit 05ef610bd on 2023-06-21 19:03:17 +0100)
% 0.22/0.42  % (19926)Linked with Z3 4.9.1.0 6ed071b44407cf6623b8d3c0dceb2a8fb7040cee z3-4.8.4-6427-g6ed071b44
% 0.22/0.42  % (19926)Termination reason: Refutation
% 0.22/0.42  
% 0.22/0.42  % (19926)Memory used [KB]: 895
% 0.22/0.42  % (19926)Time elapsed: 0.003 s
% 0.22/0.42  % (19926)------------------------------
% 0.22/0.42  % (19926)------------------------------
% 0.22/0.42  % (19919)Success in time 0.053 s
% 0.22/0.43  % Vampire---4.8 exiting
%------------------------------------------------------------------------------