TSTP Solution File: SET604+3 by Vampire---4.8

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%------------------------------------------------------------------------------
% File     : Vampire---4.8
% Problem  : SET604+3 : TPTP v8.1.2. Released v2.2.0.
% 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 : n015.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 15:44:37 EDT 2023

% Result   : Theorem 0.14s 0.40s
% Output   : Refutation 0.14s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    6
%            Number of leaves      :    4
% Syntax   : Number of formulae    :   14 (  10 unt;   0 def)
%            Number of atoms       :   20 (  13 equ)
%            Maximal formula atoms :    4 (   1 avg)
%            Number of connectives :   16 (  10   ~;   3   |;   1   &)
%                                         (   1 <=>;   1  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    6 (   3 avg)
%            Maximal term depth    :    2 (   1 avg)
%            Number of predicates  :    3 (   1 usr;   1 prp; 0-2 aty)
%            Number of functors    :    3 (   3 usr;   2 con; 0-2 aty)
%            Number of variables   :   13 (;  11   !;   2   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f45,plain,
    $false,
    inference(trivial_inequality_removal,[],[f44]) ).

fof(f44,plain,
    empty_set != empty_set,
    inference(backward_demodulation,[],[f24,f42]) ).

fof(f42,plain,
    ! [X1] : empty_set = difference(empty_set,X1),
    inference(resolution,[],[f35,f27]) ).

fof(f27,plain,
    ! [X0] : subset(empty_set,X0),
    inference(cnf_transformation,[],[f1]) ).

fof(f1,axiom,
    ! [X0] : subset(empty_set,X0),
    file('/export/starexec/sandbox2/tmp/tmp.fMlBOeyYNJ/Vampire---4.8_11999',empty_set_subset) ).

fof(f35,plain,
    ! [X0,X1] :
      ( ~ subset(X0,X1)
      | empty_set = difference(X0,X1) ),
    inference(cnf_transformation,[],[f21]) ).

fof(f21,plain,
    ! [X0,X1] :
      ( ( empty_set = difference(X0,X1)
        | ~ subset(X0,X1) )
      & ( subset(X0,X1)
        | empty_set != difference(X0,X1) ) ),
    inference(nnf_transformation,[],[f2]) ).

fof(f2,axiom,
    ! [X0,X1] :
      ( empty_set = difference(X0,X1)
    <=> subset(X0,X1) ),
    file('/export/starexec/sandbox2/tmp/tmp.fMlBOeyYNJ/Vampire---4.8_11999',difference_empty_set) ).

fof(f24,plain,
    empty_set != difference(empty_set,sK0),
    inference(cnf_transformation,[],[f14]) ).

fof(f14,plain,
    empty_set != difference(empty_set,sK0),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK0])],[f11,f13]) ).

fof(f13,plain,
    ( ? [X0] : empty_set != difference(empty_set,X0)
   => empty_set != difference(empty_set,sK0) ),
    introduced(choice_axiom,[]) ).

fof(f11,plain,
    ? [X0] : empty_set != difference(empty_set,X0),
    inference(ennf_transformation,[],[f10]) ).

fof(f10,negated_conjecture,
    ~ ! [X0] : empty_set = difference(empty_set,X0),
    inference(negated_conjecture,[],[f9]) ).

fof(f9,conjecture,
    ! [X0] : empty_set = difference(empty_set,X0),
    file('/export/starexec/sandbox2/tmp/tmp.fMlBOeyYNJ/Vampire---4.8_11999',prove_no_difference_with_empty_set) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.12  % Problem    : SET604+3 : TPTP v8.1.2. Released v2.2.0.
% 0.00/0.14  % Command    : vampire --ignore_missing on --mode portfolio/casc [--schedule casc_hol_2020] -p tptp -om szs -t %d %s
% 0.14/0.35  % Computer : n015.cluster.edu
% 0.14/0.35  % Model    : x86_64 x86_64
% 0.14/0.35  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/0.35  % Memory   : 8042.1875MB
% 0.14/0.35  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.14/0.35  % CPULimit   : 300
% 0.14/0.35  % WCLimit    : 300
% 0.14/0.35  % DateTime   : Sat Aug 26 12:51:38 EDT 2023
% 0.14/0.35  % CPUTime    : 
% 0.14/0.35  This is a FOF_THM_RFO_SEQ problem
% 0.14/0.36  Running vampire_casc2023 --mode casc -m 16384 --cores 7 -t 300 /export/starexec/sandbox2/tmp/tmp.fMlBOeyYNJ/Vampire---4.8_11999
% 0.14/0.36  % (12168)Running in auto input_syntax mode. Trying TPTP
% 0.14/0.39  % (12170)lrs-11_28_aac=none:afr=on:anc=none:bs=on:drc=off:fde=unused:gs=on:nm=2:nwc=1.3:sp=frequency:stl=188_1092 on Vampire---4 for (1092ds/0Mi)
% 0.14/0.40  % (12170)First to succeed.
% 0.14/0.40  % (12170)Refutation found. Thanks to Tanya!
% 0.14/0.40  % SZS status Theorem for Vampire---4
% 0.14/0.40  % SZS output start Proof for Vampire---4
% See solution above
% 0.14/0.40  % (12170)------------------------------
% 0.14/0.40  % (12170)Version: Vampire 4.7 (commit 05ef610bd on 2023-06-21 19:03:17 +0100)
% 0.14/0.40  % (12170)Linked with Z3 4.9.1.0 6ed071b44407cf6623b8d3c0dceb2a8fb7040cee z3-4.8.4-6427-g6ed071b44
% 0.14/0.40  % (12170)Termination reason: Refutation
% 0.14/0.40  
% 0.14/0.40  % (12170)Memory used [KB]: 9850
% 0.14/0.40  % (12170)Time elapsed: 0.003 s
% 0.14/0.40  % (12170)------------------------------
% 0.14/0.40  % (12170)------------------------------
% 0.14/0.40  % (12168)Success in time 0.038 s
% 0.14/0.40  % Vampire---4.8 exiting
%------------------------------------------------------------------------------