TSTP Solution File: SEU107+1 by SnakeForV-SAT---1.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : SnakeForV-SAT---1.0
% Problem  : SEU107+1 : TPTP v8.1.0. Released v3.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : vampire --input_syntax tptp --proof tptp --output_axiom_names on --mode portfolio --schedule snake_tptp_sat --cores 0 -t %d %s

% Computer : n029.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 : Wed Aug 31 18:31:57 EDT 2022

% Result   : Theorem 0.20s 0.49s
% Output   : Refutation 0.20s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   13
%            Number of leaves      :    9
% Syntax   : Number of formulae    :   51 (  16 unt;   0 def)
%            Number of atoms       :  148 (  18 equ)
%            Maximal formula atoms :    6 (   2 avg)
%            Number of connectives :  162 (  65   ~;  61   |;  26   &)
%                                         (   1 <=>;   9  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    9 (   5 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :    7 (   5 usr;   1 prp; 0-2 aty)
%            Number of functors    :    5 (   5 usr;   2 con; 0-3 aty)
%            Number of variables   :   83 (  78   !;   5   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f353,plain,
    $false,
    inference(subsumption_resolution,[],[f352,f134]) ).

fof(f134,plain,
    ~ in(empty_set,sK6),
    inference(cnf_transformation,[],[f93]) ).

fof(f93,plain,
    ( preboolean(sK6)
    & ~ empty(sK6)
    & ~ in(empty_set,sK6) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK6])],[f60,f92]) ).

fof(f92,plain,
    ( ? [X0] :
        ( preboolean(X0)
        & ~ empty(X0)
        & ~ in(empty_set,X0) )
   => ( preboolean(sK6)
      & ~ empty(sK6)
      & ~ in(empty_set,sK6) ) ),
    introduced(choice_axiom,[]) ).

fof(f60,plain,
    ? [X0] :
      ( preboolean(X0)
      & ~ empty(X0)
      & ~ in(empty_set,X0) ),
    inference(flattening,[],[f59]) ).

fof(f59,plain,
    ? [X0] :
      ( ~ in(empty_set,X0)
      & ~ empty(X0)
      & preboolean(X0) ),
    inference(ennf_transformation,[],[f23]) ).

fof(f23,negated_conjecture,
    ~ ! [X0] :
        ( ( ~ empty(X0)
          & preboolean(X0) )
       => in(empty_set,X0) ),
    inference(negated_conjecture,[],[f22]) ).

fof(f22,conjecture,
    ! [X0] :
      ( ( ~ empty(X0)
        & preboolean(X0) )
     => in(empty_set,X0) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t18_finsub_1) ).

fof(f352,plain,
    in(empty_set,sK6),
    inference(backward_demodulation,[],[f283,f348]) ).

fof(f348,plain,
    empty_set = prebool_difference(sK6,sK5(sK6),sK5(sK6)),
    inference(forward_demodulation,[],[f347,f186]) ).

fof(f186,plain,
    ! [X0] : empty_set = set_difference(X0,X0),
    inference(resolution,[],[f140,f124]) ).

fof(f124,plain,
    ! [X0] : subset(X0,X0),
    inference(cnf_transformation,[],[f84]) ).

fof(f84,plain,
    ! [X0] : subset(X0,X0),
    inference(rectify,[],[f37]) ).

fof(f37,plain,
    ! [X1] : subset(X1,X1),
    inference(rectify,[],[f21]) ).

fof(f21,axiom,
    ! [X1,X0] : subset(X0,X0),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',reflexivity_r1_tarski) ).

fof(f140,plain,
    ! [X0,X1] :
      ( ~ subset(X1,X0)
      | empty_set = set_difference(X1,X0) ),
    inference(cnf_transformation,[],[f97]) ).

fof(f97,plain,
    ! [X0,X1] :
      ( ( subset(X1,X0)
        | empty_set != set_difference(X1,X0) )
      & ( empty_set = set_difference(X1,X0)
        | ~ subset(X1,X0) ) ),
    inference(rectify,[],[f96]) ).

fof(f96,plain,
    ! [X1,X0] :
      ( ( subset(X0,X1)
        | set_difference(X0,X1) != empty_set )
      & ( set_difference(X0,X1) = empty_set
        | ~ subset(X0,X1) ) ),
    inference(nnf_transformation,[],[f26]) ).

fof(f26,axiom,
    ! [X1,X0] :
      ( subset(X0,X1)
    <=> set_difference(X0,X1) = empty_set ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t37_xboole_1) ).

fof(f347,plain,
    set_difference(sK5(sK6),sK5(sK6)) = prebool_difference(sK6,sK5(sK6),sK5(sK6)),
    inference(resolution,[],[f291,f133]) ).

fof(f133,plain,
    ! [X0] : element(sK5(X0),X0),
    inference(cnf_transformation,[],[f91]) ).

fof(f91,plain,
    ! [X0] : element(sK5(X0),X0),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK5])],[f7,f90]) ).

fof(f90,plain,
    ! [X0] :
      ( ? [X1] : element(X1,X0)
     => element(sK5(X0),X0) ),
    introduced(choice_axiom,[]) ).

fof(f7,axiom,
    ! [X0] :
    ? [X1] : element(X1,X0),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',existence_m1_subset_1) ).

fof(f291,plain,
    ! [X5] :
      ( ~ element(X5,sK6)
      | prebool_difference(sK6,X5,sK5(sK6)) = set_difference(X5,sK5(sK6)) ),
    inference(resolution,[],[f275,f133]) ).

fof(f275,plain,
    ! [X0,X1] :
      ( ~ element(X0,sK6)
      | ~ element(X1,sK6)
      | prebool_difference(sK6,X1,X0) = set_difference(X1,X0) ),
    inference(subsumption_resolution,[],[f272,f135]) ).

fof(f135,plain,
    ~ empty(sK6),
    inference(cnf_transformation,[],[f93]) ).

fof(f272,plain,
    ! [X0,X1] :
      ( prebool_difference(sK6,X1,X0) = set_difference(X1,X0)
      | ~ element(X1,sK6)
      | ~ element(X0,sK6)
      | empty(sK6) ),
    inference(resolution,[],[f132,f136]) ).

fof(f136,plain,
    preboolean(sK6),
    inference(cnf_transformation,[],[f93]) ).

fof(f132,plain,
    ! [X2,X0,X1] :
      ( ~ preboolean(X0)
      | empty(X0)
      | ~ element(X1,X0)
      | ~ element(X2,X0)
      | set_difference(X2,X1) = prebool_difference(X0,X2,X1) ),
    inference(cnf_transformation,[],[f89]) ).

fof(f89,plain,
    ! [X0,X1,X2] :
      ( ~ element(X2,X0)
      | empty(X0)
      | ~ preboolean(X0)
      | ~ element(X1,X0)
      | set_difference(X2,X1) = prebool_difference(X0,X2,X1) ),
    inference(rectify,[],[f57]) ).

fof(f57,plain,
    ! [X2,X0,X1] :
      ( ~ element(X1,X2)
      | empty(X2)
      | ~ preboolean(X2)
      | ~ element(X0,X2)
      | prebool_difference(X2,X1,X0) = set_difference(X1,X0) ),
    inference(flattening,[],[f56]) ).

fof(f56,plain,
    ! [X0,X1,X2] :
      ( prebool_difference(X2,X1,X0) = set_difference(X1,X0)
      | ~ element(X1,X2)
      | empty(X2)
      | ~ element(X0,X2)
      | ~ preboolean(X2) ),
    inference(ennf_transformation,[],[f36]) ).

fof(f36,plain,
    ! [X0,X1,X2] :
      ( ( element(X1,X2)
        & ~ empty(X2)
        & element(X0,X2)
        & preboolean(X2) )
     => prebool_difference(X2,X1,X0) = set_difference(X1,X0) ),
    inference(rectify,[],[f20]) ).

fof(f20,axiom,
    ! [X2,X1,X0] :
      ( ( element(X2,X0)
        & ~ empty(X0)
        & preboolean(X0)
        & element(X1,X0) )
     => prebool_difference(X0,X1,X2) = set_difference(X1,X2) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',redefinition_k2_finsub_1) ).

fof(f283,plain,
    in(prebool_difference(sK6,sK5(sK6),sK5(sK6)),sK6),
    inference(resolution,[],[f280,f133]) ).

fof(f280,plain,
    ! [X5] :
      ( ~ element(X5,sK6)
      | in(prebool_difference(sK6,X5,sK5(sK6)),sK6) ),
    inference(resolution,[],[f277,f133]) ).

fof(f277,plain,
    ! [X0,X1] :
      ( ~ element(X1,sK6)
      | in(prebool_difference(sK6,X0,X1),sK6)
      | ~ element(X0,sK6) ),
    inference(subsumption_resolution,[],[f276,f135]) ).

fof(f276,plain,
    ! [X0,X1] :
      ( in(prebool_difference(sK6,X0,X1),sK6)
      | ~ element(X1,sK6)
      | ~ element(X0,sK6)
      | empty(sK6) ),
    inference(resolution,[],[f271,f146]) ).

fof(f146,plain,
    ! [X0,X1] :
      ( ~ element(X0,X1)
      | empty(X1)
      | in(X0,X1) ),
    inference(cnf_transformation,[],[f68]) ).

fof(f68,plain,
    ! [X0,X1] :
      ( empty(X1)
      | in(X0,X1)
      | ~ element(X0,X1) ),
    inference(flattening,[],[f67]) ).

fof(f67,plain,
    ! [X0,X1] :
      ( empty(X1)
      | in(X0,X1)
      | ~ element(X0,X1) ),
    inference(ennf_transformation,[],[f25]) ).

fof(f25,axiom,
    ! [X0,X1] :
      ( element(X0,X1)
     => ( empty(X1)
        | in(X0,X1) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t2_subset) ).

fof(f271,plain,
    ! [X0,X1] :
      ( element(prebool_difference(sK6,X0,X1),sK6)
      | ~ element(X0,sK6)
      | ~ element(X1,sK6) ),
    inference(subsumption_resolution,[],[f268,f135]) ).

fof(f268,plain,
    ! [X0,X1] :
      ( empty(sK6)
      | element(prebool_difference(sK6,X0,X1),sK6)
      | ~ element(X1,sK6)
      | ~ element(X0,sK6) ),
    inference(resolution,[],[f130,f136]) ).

fof(f130,plain,
    ! [X2,X0,X1] :
      ( ~ preboolean(X2)
      | empty(X2)
      | element(prebool_difference(X2,X0,X1),X2)
      | ~ element(X0,X2)
      | ~ element(X1,X2) ),
    inference(cnf_transformation,[],[f87]) ).

fof(f87,plain,
    ! [X0,X1,X2] :
      ( empty(X2)
      | ~ element(X0,X2)
      | ~ preboolean(X2)
      | ~ element(X1,X2)
      | element(prebool_difference(X2,X0,X1),X2) ),
    inference(rectify,[],[f74]) ).

fof(f74,plain,
    ! [X2,X0,X1] :
      ( empty(X1)
      | ~ element(X2,X1)
      | ~ preboolean(X1)
      | ~ element(X0,X1)
      | element(prebool_difference(X1,X2,X0),X1) ),
    inference(flattening,[],[f73]) ).

fof(f73,plain,
    ! [X1,X0,X2] :
      ( element(prebool_difference(X1,X2,X0),X1)
      | ~ element(X0,X1)
      | ~ preboolean(X1)
      | ~ element(X2,X1)
      | empty(X1) ),
    inference(ennf_transformation,[],[f38]) ).

fof(f38,plain,
    ! [X1,X0,X2] :
      ( ( element(X0,X1)
        & preboolean(X1)
        & element(X2,X1)
        & ~ empty(X1) )
     => element(prebool_difference(X1,X2,X0),X1) ),
    inference(rectify,[],[f6]) ).

fof(f6,axiom,
    ! [X2,X0,X1] :
      ( ( ~ empty(X0)
        & element(X1,X0)
        & element(X2,X0)
        & preboolean(X0) )
     => element(prebool_difference(X0,X1,X2),X0) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k2_finsub_1) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.12  % Problem    : SEU107+1 : TPTP v8.1.0. Released v3.2.0.
% 0.03/0.13  % Command    : vampire --input_syntax tptp --proof tptp --output_axiom_names on --mode portfolio --schedule snake_tptp_sat --cores 0 -t %d %s
% 0.12/0.35  % Computer : n029.cluster.edu
% 0.12/0.35  % Model    : x86_64 x86_64
% 0.12/0.35  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.35  % Memory   : 8042.1875MB
% 0.12/0.35  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.35  % CPULimit   : 300
% 0.12/0.35  % WCLimit    : 300
% 0.12/0.35  % DateTime   : Tue Aug 30 14:48:27 EDT 2022
% 0.12/0.35  % CPUTime    : 
% 0.20/0.46  % (23191)ott+11_2:3_av=off:fde=unused:nwc=5.0:tgt=ground:i=75:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/75Mi)
% 0.20/0.47  % (23183)dis+10_1:1_fsd=on:sp=occurrence:i=7:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/7Mi)
% 0.20/0.48  % (23191)First to succeed.
% 0.20/0.49  % (23183)Instruction limit reached!
% 0.20/0.49  % (23183)------------------------------
% 0.20/0.49  % (23183)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 0.20/0.49  % (23183)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 0.20/0.49  % (23183)Termination reason: Unknown
% 0.20/0.49  % (23183)Termination phase: Saturation
% 0.20/0.49  
% 0.20/0.49  % (23183)Memory used [KB]: 5500
% 0.20/0.49  % (23183)Time elapsed: 0.076 s
% 0.20/0.49  % (23183)Instructions burned: 7 (million)
% 0.20/0.49  % (23183)------------------------------
% 0.20/0.49  % (23183)------------------------------
% 0.20/0.49  % (23191)Refutation found. Thanks to Tanya!
% 0.20/0.49  % SZS status Theorem for theBenchmark
% 0.20/0.49  % SZS output start Proof for theBenchmark
% See solution above
% 0.20/0.49  % (23191)------------------------------
% 0.20/0.49  % (23191)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 0.20/0.49  % (23191)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 0.20/0.49  % (23191)Termination reason: Refutation
% 0.20/0.49  
% 0.20/0.49  % (23191)Memory used [KB]: 1151
% 0.20/0.49  % (23191)Time elapsed: 0.072 s
% 0.20/0.49  % (23191)Instructions burned: 10 (million)
% 0.20/0.49  % (23191)------------------------------
% 0.20/0.49  % (23191)------------------------------
% 0.20/0.49  % (23175)Success in time 0.134 s
%------------------------------------------------------------------------------