TSTP Solution File: SET907+1 by Vampire-SAT---4.8

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%------------------------------------------------------------------------------
% File     : Vampire-SAT---4.8
% Problem  : SET907+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 : n018.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 : Sat Sep  2 00:03:28 EDT 2023

% Result   : Theorem 0.21s 0.43s
% Output   : Refutation 0.21s
% 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(f99,plain,
    $false,
    inference(trivial_inequality_removal,[],[f96]) ).

fof(f96,plain,
    sK1 != sK1,
    inference(superposition,[],[f53,f93]) ).

fof(f93,plain,
    sK1 = set_union2(sK1,unordered_pair(sK0,sK2)),
    inference(resolution,[],[f88,f31]) ).

fof(f31,plain,
    in(sK2,sK1),
    inference(cnf_transformation,[],[f23]) ).

fof(f23,plain,
    ( sK1 != set_union2(unordered_pair(sK0,sK2),sK1)
    & in(sK2,sK1)
    & in(sK0,sK1) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK0,sK1,sK2])],[f17,f22]) ).

fof(f22,plain,
    ( ? [X0,X1,X2] :
        ( set_union2(unordered_pair(X0,X2),X1) != X1
        & in(X2,X1)
        & in(X0,X1) )
   => ( sK1 != set_union2(unordered_pair(sK0,sK2),sK1)
      & in(sK2,sK1)
      & in(sK0,sK1) ) ),
    introduced(choice_axiom,[]) ).

fof(f17,plain,
    ? [X0,X1,X2] :
      ( set_union2(unordered_pair(X0,X2),X1) != X1
      & in(X2,X1)
      & in(X0,X1) ),
    inference(flattening,[],[f16]) ).

fof(f16,plain,
    ? [X0,X1,X2] :
      ( set_union2(unordered_pair(X0,X2),X1) != X1
      & in(X2,X1)
      & in(X0,X1) ),
    inference(ennf_transformation,[],[f13]) ).

fof(f13,negated_conjecture,
    ~ ! [X0,X1,X2] :
        ( ( in(X2,X1)
          & in(X0,X1) )
       => set_union2(unordered_pair(X0,X2),X1) = X1 ),
    inference(negated_conjecture,[],[f12]) ).

fof(f12,conjecture,
    ! [X0,X1,X2] :
      ( ( in(X2,X1)
        & in(X0,X1) )
     => set_union2(unordered_pair(X0,X2),X1) = X1 ),
    file('/export/starexec/sandbox/tmp/tmp.G2zafLZbkE/Vampire---4.8_7473',t48_zfmisc_1) ).

fof(f88,plain,
    ! [X0] :
      ( ~ in(X0,sK1)
      | sK1 = set_union2(sK1,unordered_pair(sK0,X0)) ),
    inference(forward_demodulation,[],[f79,f36]) ).

fof(f36,plain,
    ! [X0,X1] : set_union2(X0,X1) = set_union2(X1,X0),
    inference(cnf_transformation,[],[f3]) ).

fof(f3,axiom,
    ! [X0,X1] : set_union2(X0,X1) = set_union2(X1,X0),
    file('/export/starexec/sandbox/tmp/tmp.G2zafLZbkE/Vampire---4.8_7473',commutativity_k2_xboole_0) ).

fof(f79,plain,
    ! [X0] :
      ( ~ in(X0,sK1)
      | sK1 = set_union2(unordered_pair(sK0,X0),sK1) ),
    inference(resolution,[],[f76,f30]) ).

fof(f30,plain,
    in(sK0,sK1),
    inference(cnf_transformation,[],[f23]) ).

fof(f76,plain,
    ! [X8,X6,X7] :
      ( ~ in(X8,X7)
      | ~ in(X6,X7)
      | set_union2(unordered_pair(X8,X6),X7) = X7 ),
    inference(resolution,[],[f43,f39]) ).

fof(f39,plain,
    ! [X0,X1] :
      ( ~ subset(X0,X1)
      | set_union2(X0,X1) = X1 ),
    inference(cnf_transformation,[],[f20]) ).

fof(f20,plain,
    ! [X0,X1] :
      ( set_union2(X0,X1) = X1
      | ~ subset(X0,X1) ),
    inference(ennf_transformation,[],[f10]) ).

fof(f10,axiom,
    ! [X0,X1] :
      ( subset(X0,X1)
     => set_union2(X0,X1) = X1 ),
    file('/export/starexec/sandbox/tmp/tmp.G2zafLZbkE/Vampire---4.8_7473',t12_xboole_1) ).

fof(f43,plain,
    ! [X2,X0,X1] :
      ( subset(unordered_pair(X0,X1),X2)
      | ~ in(X1,X2)
      | ~ in(X0,X2) ),
    inference(cnf_transformation,[],[f25]) ).

fof(f25,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,[],[f24]) ).

fof(f24,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,[],[f11]) ).

fof(f11,axiom,
    ! [X0,X1,X2] :
      ( subset(unordered_pair(X0,X1),X2)
    <=> ( in(X1,X2)
        & in(X0,X2) ) ),
    file('/export/starexec/sandbox/tmp/tmp.G2zafLZbkE/Vampire---4.8_7473',t38_zfmisc_1) ).

fof(f53,plain,
    sK1 != set_union2(sK1,unordered_pair(sK0,sK2)),
    inference(superposition,[],[f32,f36]) ).

fof(f32,plain,
    sK1 != set_union2(unordered_pair(sK0,sK2),sK1),
    inference(cnf_transformation,[],[f23]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.13  % Problem    : SET907+1 : TPTP v8.1.2. Released v3.2.0.
% 0.13/0.15  % Command    : vampire --ignore_missing on --mode portfolio/casc [--schedule casc_hol_2020] -p tptp -om szs -t %d %s
% 0.14/0.36  % Computer : n018.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   : Wed Aug 30 15:46:49 EDT 2023
% 0.14/0.36  % CPUTime    : 
% 0.21/0.42  % (7727)Running in auto input_syntax mode. Trying TPTP
% 0.21/0.42  % (7769)fmb+10_1_bce=on:fmbdsb=on:fmbes=contour:fmbswr=3:fde=none:nm=0_793 on Vampire---4 for (793ds/0Mi)
% 0.21/0.42  % (7771)fmb+10_1_bce=on:fmbsr=1.5:nm=32_533 on Vampire---4 for (533ds/0Mi)
% 0.21/0.42  % (7770)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 Vampire---4 for (569ds/0Mi)
% 0.21/0.42  % (7767)fmb+10_1_bce=on:fmbas=function:fmbsr=1.2:fde=unused:nm=0_846 on Vampire---4 for (846ds/0Mi)
% 0.21/0.42  % (7773)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 Vampire---4 for (522ds/0Mi)
% 0.21/0.42  % (7774)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 Vampire---4 for (497ds/0Mi)
% 0.21/0.42  TRYING [1]
% 0.21/0.42  % (7772)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 Vampire---4 for (531ds/0Mi)
% 0.21/0.42  TRYING [2]
% 0.21/0.42  TRYING [3]
% 0.21/0.43  TRYING [1]
% 0.21/0.43  TRYING [4]
% 0.21/0.43  TRYING [2]
% 0.21/0.43  % (7773)First to succeed.
% 0.21/0.43  TRYING [1]
% 0.21/0.43  TRYING [2]
% 0.21/0.43  TRYING [3]
% 0.21/0.43  % (7772)Also succeeded, but the first one will report.
% 0.21/0.43  TRYING [4]
% 0.21/0.43  TRYING [3]
% 0.21/0.43  % (7773)Refutation found. Thanks to Tanya!
% 0.21/0.43  % SZS status Theorem for Vampire---4
% 0.21/0.43  % SZS output start Proof for Vampire---4
% See solution above
% 0.21/0.43  % (7773)------------------------------
% 0.21/0.43  % (7773)Version: Vampire 4.7 (commit 05ef610bd on 2023-06-21 19:03:17 +0100)
% 0.21/0.43  % (7773)Linked with Z3 4.9.1.0 6ed071b44407cf6623b8d3c0dceb2a8fb7040cee z3-4.8.4-6427-g6ed071b44
% 0.21/0.43  % (7773)Termination reason: Refutation
% 0.21/0.43  
% 0.21/0.43  % (7773)Memory used [KB]: 895
% 0.21/0.43  % (7773)Time elapsed: 0.006 s
% 0.21/0.43  % (7773)------------------------------
% 0.21/0.43  % (7773)------------------------------
% 0.21/0.43  % (7727)Success in time 0.066 s
% 0.21/0.43  % Vampire---4.8 exiting
%------------------------------------------------------------------------------