TSTP Solution File: SWC406+1 by SnakeForV-SAT---1.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : SnakeForV-SAT---1.0
% Problem  : SWC406+1 : TPTP v8.1.0. Released v2.4.0.
% 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 : n010.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 18:43:40 EDT 2022

% Result   : Theorem 0.20s 0.58s
% Output   : Refutation 0.20s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   11
%            Number of leaves      :    7
% Syntax   : Number of formulae    :   24 (   9 unt;   0 def)
%            Number of atoms       :  346 (  64 equ)
%            Maximal formula atoms :   44 (  14 avg)
%            Number of connectives :  454 ( 132   ~; 111   |; 187   &)
%                                         (   0 <=>;  24  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   23 (  10 avg)
%            Maximal term depth    :    2 (   1 avg)
%            Number of predicates  :    6 (   4 usr;   1 prp; 0-2 aty)
%            Number of functors    :    6 (   6 usr;   5 con; 0-1 aty)
%            Number of variables   :  102 (  44   !;  58   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f606,plain,
    $false,
    inference(subsumption_resolution,[],[f605,f436]) ).

fof(f436,plain,
    ssItem(sK31),
    inference(cnf_transformation,[],[f288]) ).

fof(f288,plain,
    ( ssList(sK26)
    & ssList(sK27)
    & sK26 = sK28
    & ! [X4] :
        ( ( ( ( leq(sK30(X4),X4)
              & ssItem(sK30(X4))
              & sK30(X4) != X4
              & memberP(sK29,sK30(X4)) )
            | ~ memberP(sK29,X4)
            | memberP(sK28,X4) )
          & ( ~ memberP(sK28,X4)
            | ( memberP(sK29,X4)
              & ! [X6] :
                  ( ~ memberP(sK29,X6)
                  | ~ leq(X6,X4)
                  | X4 = X6
                  | ~ ssItem(X6) ) ) ) )
        | ~ ssItem(X4) )
    & ssList(sK29)
    & memberP(sK26,sK31)
    & ~ memberP(sK27,sK31)
    & ssItem(sK31)
    & sK27 = sK29
    & ssList(sK28) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK26,sK27,sK28,sK29,sK30,sK31])],[f281,f287,f286,f285,f284,f283,f282]) ).

fof(f282,plain,
    ( ? [X0] :
        ( ssList(X0)
        & ? [X1] :
            ( ssList(X1)
            & ? [X2] :
                ( ? [X3] :
                    ( X0 = X2
                    & ! [X4] :
                        ( ( ( ? [X5] :
                                ( leq(X5,X4)
                                & ssItem(X5)
                                & X4 != X5
                                & memberP(X3,X5) )
                            | ~ memberP(X3,X4)
                            | memberP(X2,X4) )
                          & ( ~ memberP(X2,X4)
                            | ( memberP(X3,X4)
                              & ! [X6] :
                                  ( ~ memberP(X3,X6)
                                  | ~ leq(X6,X4)
                                  | X4 = X6
                                  | ~ ssItem(X6) ) ) ) )
                        | ~ ssItem(X4) )
                    & ssList(X3)
                    & ? [X7] :
                        ( memberP(X0,X7)
                        & ~ memberP(X1,X7)
                        & ssItem(X7) )
                    & X1 = X3 )
                & ssList(X2) ) ) )
   => ( ssList(sK26)
      & ? [X1] :
          ( ssList(X1)
          & ? [X2] :
              ( ? [X3] :
                  ( sK26 = X2
                  & ! [X4] :
                      ( ( ( ? [X5] :
                              ( leq(X5,X4)
                              & ssItem(X5)
                              & X4 != X5
                              & memberP(X3,X5) )
                          | ~ memberP(X3,X4)
                          | memberP(X2,X4) )
                        & ( ~ memberP(X2,X4)
                          | ( memberP(X3,X4)
                            & ! [X6] :
                                ( ~ memberP(X3,X6)
                                | ~ leq(X6,X4)
                                | X4 = X6
                                | ~ ssItem(X6) ) ) ) )
                      | ~ ssItem(X4) )
                  & ssList(X3)
                  & ? [X7] :
                      ( memberP(sK26,X7)
                      & ~ memberP(X1,X7)
                      & ssItem(X7) )
                  & X1 = X3 )
              & ssList(X2) ) ) ) ),
    introduced(choice_axiom,[]) ).

fof(f283,plain,
    ( ? [X1] :
        ( ssList(X1)
        & ? [X2] :
            ( ? [X3] :
                ( sK26 = X2
                & ! [X4] :
                    ( ( ( ? [X5] :
                            ( leq(X5,X4)
                            & ssItem(X5)
                            & X4 != X5
                            & memberP(X3,X5) )
                        | ~ memberP(X3,X4)
                        | memberP(X2,X4) )
                      & ( ~ memberP(X2,X4)
                        | ( memberP(X3,X4)
                          & ! [X6] :
                              ( ~ memberP(X3,X6)
                              | ~ leq(X6,X4)
                              | X4 = X6
                              | ~ ssItem(X6) ) ) ) )
                    | ~ ssItem(X4) )
                & ssList(X3)
                & ? [X7] :
                    ( memberP(sK26,X7)
                    & ~ memberP(X1,X7)
                    & ssItem(X7) )
                & X1 = X3 )
            & ssList(X2) ) )
   => ( ssList(sK27)
      & ? [X2] :
          ( ? [X3] :
              ( sK26 = X2
              & ! [X4] :
                  ( ( ( ? [X5] :
                          ( leq(X5,X4)
                          & ssItem(X5)
                          & X4 != X5
                          & memberP(X3,X5) )
                      | ~ memberP(X3,X4)
                      | memberP(X2,X4) )
                    & ( ~ memberP(X2,X4)
                      | ( memberP(X3,X4)
                        & ! [X6] :
                            ( ~ memberP(X3,X6)
                            | ~ leq(X6,X4)
                            | X4 = X6
                            | ~ ssItem(X6) ) ) ) )
                  | ~ ssItem(X4) )
              & ssList(X3)
              & ? [X7] :
                  ( memberP(sK26,X7)
                  & ~ memberP(sK27,X7)
                  & ssItem(X7) )
              & sK27 = X3 )
          & ssList(X2) ) ) ),
    introduced(choice_axiom,[]) ).

fof(f284,plain,
    ( ? [X2] :
        ( ? [X3] :
            ( sK26 = X2
            & ! [X4] :
                ( ( ( ? [X5] :
                        ( leq(X5,X4)
                        & ssItem(X5)
                        & X4 != X5
                        & memberP(X3,X5) )
                    | ~ memberP(X3,X4)
                    | memberP(X2,X4) )
                  & ( ~ memberP(X2,X4)
                    | ( memberP(X3,X4)
                      & ! [X6] :
                          ( ~ memberP(X3,X6)
                          | ~ leq(X6,X4)
                          | X4 = X6
                          | ~ ssItem(X6) ) ) ) )
                | ~ ssItem(X4) )
            & ssList(X3)
            & ? [X7] :
                ( memberP(sK26,X7)
                & ~ memberP(sK27,X7)
                & ssItem(X7) )
            & sK27 = X3 )
        & ssList(X2) )
   => ( ? [X3] :
          ( sK26 = sK28
          & ! [X4] :
              ( ( ( ? [X5] :
                      ( leq(X5,X4)
                      & ssItem(X5)
                      & X4 != X5
                      & memberP(X3,X5) )
                  | ~ memberP(X3,X4)
                  | memberP(sK28,X4) )
                & ( ~ memberP(sK28,X4)
                  | ( memberP(X3,X4)
                    & ! [X6] :
                        ( ~ memberP(X3,X6)
                        | ~ leq(X6,X4)
                        | X4 = X6
                        | ~ ssItem(X6) ) ) ) )
              | ~ ssItem(X4) )
          & ssList(X3)
          & ? [X7] :
              ( memberP(sK26,X7)
              & ~ memberP(sK27,X7)
              & ssItem(X7) )
          & sK27 = X3 )
      & ssList(sK28) ) ),
    introduced(choice_axiom,[]) ).

fof(f285,plain,
    ( ? [X3] :
        ( sK26 = sK28
        & ! [X4] :
            ( ( ( ? [X5] :
                    ( leq(X5,X4)
                    & ssItem(X5)
                    & X4 != X5
                    & memberP(X3,X5) )
                | ~ memberP(X3,X4)
                | memberP(sK28,X4) )
              & ( ~ memberP(sK28,X4)
                | ( memberP(X3,X4)
                  & ! [X6] :
                      ( ~ memberP(X3,X6)
                      | ~ leq(X6,X4)
                      | X4 = X6
                      | ~ ssItem(X6) ) ) ) )
            | ~ ssItem(X4) )
        & ssList(X3)
        & ? [X7] :
            ( memberP(sK26,X7)
            & ~ memberP(sK27,X7)
            & ssItem(X7) )
        & sK27 = X3 )
   => ( sK26 = sK28
      & ! [X4] :
          ( ( ( ? [X5] :
                  ( leq(X5,X4)
                  & ssItem(X5)
                  & X4 != X5
                  & memberP(sK29,X5) )
              | ~ memberP(sK29,X4)
              | memberP(sK28,X4) )
            & ( ~ memberP(sK28,X4)
              | ( memberP(sK29,X4)
                & ! [X6] :
                    ( ~ memberP(sK29,X6)
                    | ~ leq(X6,X4)
                    | X4 = X6
                    | ~ ssItem(X6) ) ) ) )
          | ~ ssItem(X4) )
      & ssList(sK29)
      & ? [X7] :
          ( memberP(sK26,X7)
          & ~ memberP(sK27,X7)
          & ssItem(X7) )
      & sK27 = sK29 ) ),
    introduced(choice_axiom,[]) ).

fof(f286,plain,
    ! [X4] :
      ( ? [X5] :
          ( leq(X5,X4)
          & ssItem(X5)
          & X4 != X5
          & memberP(sK29,X5) )
     => ( leq(sK30(X4),X4)
        & ssItem(sK30(X4))
        & sK30(X4) != X4
        & memberP(sK29,sK30(X4)) ) ),
    introduced(choice_axiom,[]) ).

fof(f287,plain,
    ( ? [X7] :
        ( memberP(sK26,X7)
        & ~ memberP(sK27,X7)
        & ssItem(X7) )
   => ( memberP(sK26,sK31)
      & ~ memberP(sK27,sK31)
      & ssItem(sK31) ) ),
    introduced(choice_axiom,[]) ).

fof(f281,plain,
    ? [X0] :
      ( ssList(X0)
      & ? [X1] :
          ( ssList(X1)
          & ? [X2] :
              ( ? [X3] :
                  ( X0 = X2
                  & ! [X4] :
                      ( ( ( ? [X5] :
                              ( leq(X5,X4)
                              & ssItem(X5)
                              & X4 != X5
                              & memberP(X3,X5) )
                          | ~ memberP(X3,X4)
                          | memberP(X2,X4) )
                        & ( ~ memberP(X2,X4)
                          | ( memberP(X3,X4)
                            & ! [X6] :
                                ( ~ memberP(X3,X6)
                                | ~ leq(X6,X4)
                                | X4 = X6
                                | ~ ssItem(X6) ) ) ) )
                      | ~ ssItem(X4) )
                  & ssList(X3)
                  & ? [X7] :
                      ( memberP(X0,X7)
                      & ~ memberP(X1,X7)
                      & ssItem(X7) )
                  & X1 = X3 )
              & ssList(X2) ) ) ),
    inference(rectify,[],[f105]) ).

fof(f105,plain,
    ? [X0] :
      ( ssList(X0)
      & ? [X1] :
          ( ssList(X1)
          & ? [X2] :
              ( ? [X3] :
                  ( X0 = X2
                  & ! [X4] :
                      ( ( ( ? [X6] :
                              ( leq(X6,X4)
                              & ssItem(X6)
                              & X4 != X6
                              & memberP(X3,X6) )
                          | ~ memberP(X3,X4)
                          | memberP(X2,X4) )
                        & ( ~ memberP(X2,X4)
                          | ( memberP(X3,X4)
                            & ! [X5] :
                                ( ~ memberP(X3,X5)
                                | ~ leq(X5,X4)
                                | X4 = X5
                                | ~ ssItem(X5) ) ) ) )
                      | ~ ssItem(X4) )
                  & ssList(X3)
                  & ? [X7] :
                      ( memberP(X0,X7)
                      & ~ memberP(X1,X7)
                      & ssItem(X7) )
                  & X1 = X3 )
              & ssList(X2) ) ) ),
    inference(flattening,[],[f104]) ).

fof(f104,plain,
    ? [X0] :
      ( ? [X1] :
          ( ? [X2] :
              ( ? [X3] :
                  ( ? [X7] :
                      ( memberP(X0,X7)
                      & ~ memberP(X1,X7)
                      & ssItem(X7) )
                  & X1 = X3
                  & X0 = X2
                  & ! [X4] :
                      ( ~ ssItem(X4)
                      | ( ( memberP(X2,X4)
                          | ~ memberP(X3,X4)
                          | ? [X6] :
                              ( memberP(X3,X6)
                              & X4 != X6
                              & leq(X6,X4)
                              & ssItem(X6) ) )
                        & ( ~ memberP(X2,X4)
                          | ( memberP(X3,X4)
                            & ! [X5] :
                                ( ~ memberP(X3,X5)
                                | ~ leq(X5,X4)
                                | X4 = X5
                                | ~ ssItem(X5) ) ) ) ) )
                  & ssList(X3) )
              & ssList(X2) )
          & ssList(X1) )
      & ssList(X0) ),
    inference(ennf_transformation,[],[f98]) ).

fof(f98,plain,
    ~ ! [X0] :
        ( ssList(X0)
       => ! [X1] :
            ( ssList(X1)
           => ! [X2] :
                ( ssList(X2)
               => ! [X3] :
                    ( ssList(X3)
                   => ( ! [X7] :
                          ( ssItem(X7)
                         => ( ~ memberP(X0,X7)
                            | memberP(X1,X7) ) )
                      | X1 != X3
                      | X0 != X2
                      | ? [X4] :
                          ( ssItem(X4)
                          & ( ( ~ memberP(X2,X4)
                              & memberP(X3,X4)
                              & ! [X6] :
                                  ( ssItem(X6)
                                 => ( ~ memberP(X3,X6)
                                    | X4 = X6
                                    | ~ leq(X6,X4) ) ) )
                            | ( ( ~ memberP(X3,X4)
                                | ? [X5] :
                                    ( ssItem(X5)
                                    & leq(X5,X4)
                                    & X4 != X5
                                    & memberP(X3,X5) ) )
                              & memberP(X2,X4) ) ) ) ) ) ) ) ),
    inference(rectify,[],[f97]) ).

fof(f97,negated_conjecture,
    ~ ! [X0] :
        ( ssList(X0)
       => ! [X1] :
            ( ssList(X1)
           => ! [X2] :
                ( ssList(X2)
               => ! [X3] :
                    ( ssList(X3)
                   => ( ? [X4] :
                          ( ( ( ( ~ memberP(X3,X4)
                                | ? [X5] :
                                    ( ssItem(X5)
                                    & leq(X5,X4)
                                    & X4 != X5
                                    & memberP(X3,X5) ) )
                              & memberP(X2,X4) )
                            | ( ~ memberP(X2,X4)
                              & memberP(X3,X4)
                              & ! [X5] :
                                  ( ssItem(X5)
                                 => ( X4 = X5
                                    | ~ memberP(X3,X5)
                                    | ~ leq(X5,X4) ) ) ) )
                          & ssItem(X4) )
                      | X0 != X2
                      | ! [X6] :
                          ( ssItem(X6)
                         => ( ~ memberP(X0,X6)
                            | memberP(X1,X6) ) )
                      | X1 != X3 ) ) ) ) ),
    inference(negated_conjecture,[],[f96]) ).

fof(f96,conjecture,
    ! [X0] :
      ( ssList(X0)
     => ! [X1] :
          ( ssList(X1)
         => ! [X2] :
              ( ssList(X2)
             => ! [X3] :
                  ( ssList(X3)
                 => ( ? [X4] :
                        ( ( ( ( ~ memberP(X3,X4)
                              | ? [X5] :
                                  ( ssItem(X5)
                                  & leq(X5,X4)
                                  & X4 != X5
                                  & memberP(X3,X5) ) )
                            & memberP(X2,X4) )
                          | ( ~ memberP(X2,X4)
                            & memberP(X3,X4)
                            & ! [X5] :
                                ( ssItem(X5)
                               => ( X4 = X5
                                  | ~ memberP(X3,X5)
                                  | ~ leq(X5,X4) ) ) ) )
                        & ssItem(X4) )
                    | X0 != X2
                    | ! [X6] :
                        ( ssItem(X6)
                       => ( ~ memberP(X0,X6)
                          | memberP(X1,X6) ) )
                    | X1 != X3 ) ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',co1) ).

fof(f605,plain,
    ~ ssItem(sK31),
    inference(subsumption_resolution,[],[f604,f569]) ).

fof(f569,plain,
    ~ memberP(sK29,sK31),
    inference(definition_unfolding,[],[f437,f435]) ).

fof(f435,plain,
    sK27 = sK29,
    inference(cnf_transformation,[],[f288]) ).

fof(f437,plain,
    ~ memberP(sK27,sK31),
    inference(cnf_transformation,[],[f288]) ).

fof(f604,plain,
    ( memberP(sK29,sK31)
    | ~ ssItem(sK31) ),
    inference(resolution,[],[f441,f568]) ).

fof(f568,plain,
    memberP(sK28,sK31),
    inference(definition_unfolding,[],[f438,f446]) ).

fof(f446,plain,
    sK26 = sK28,
    inference(cnf_transformation,[],[f288]) ).

fof(f438,plain,
    memberP(sK26,sK31),
    inference(cnf_transformation,[],[f288]) ).

fof(f441,plain,
    ! [X4] :
      ( ~ memberP(sK28,X4)
      | memberP(sK29,X4)
      | ~ ssItem(X4) ),
    inference(cnf_transformation,[],[f288]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.12  % Problem    : SWC406+1 : TPTP v8.1.0. Released v2.4.0.
% 0.07/0.13  % Command    : vampire --input_syntax tptp --proof tptp --output_axiom_names on --mode portfolio --schedule snake_tptp_sat --cores 0 -t %d %s
% 0.13/0.34  % Computer : n010.cluster.edu
% 0.13/0.34  % Model    : x86_64 x86_64
% 0.13/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.34  % Memory   : 8042.1875MB
% 0.13/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.34  % CPULimit   : 300
% 0.13/0.34  % WCLimit    : 300
% 0.13/0.34  % DateTime   : Tue Aug 30 18:46:44 EDT 2022
% 0.13/0.34  % CPUTime    : 
% 0.20/0.55  % (28642)fmb+10_1:1_fmbsr=2.0:nm=4:skr=on:i=51:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/51Mi)
% 0.20/0.56  % (28643)dis+10_1:1_fsd=on:sp=occurrence:i=7:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/7Mi)
% 0.20/0.56  % (28660)ott+10_1:1_kws=precedence:tgt=ground:i=482:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/482Mi)
% 0.20/0.56  % (28644)dis+2_1:64_add=large:bce=on:bd=off:i=2:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/2Mi)
% 0.20/0.56  % (28658)dis+21_1:1_av=off:er=filter:slsq=on:slsqc=0:slsqr=1,1:sp=frequency:to=lpo:i=498:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/498Mi)
% 0.20/0.56  % (28644)Instruction limit reached!
% 0.20/0.56  % (28644)------------------------------
% 0.20/0.56  % (28644)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 0.20/0.56  % (28659)ott+11_1:1_drc=off:nwc=5.0:slsq=on:slsqc=1:spb=goal_then_units:to=lpo:i=467:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/467Mi)
% 0.20/0.56  % (28644)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 0.20/0.56  % (28644)Termination reason: Unknown
% 0.20/0.56  % (28644)Termination phase: Naming
% 0.20/0.56  
% 0.20/0.56  % (28644)Memory used [KB]: 1023
% 0.20/0.56  % (28644)Time elapsed: 0.004 s
% 0.20/0.56  % (28644)Instructions burned: 3 (million)
% 0.20/0.56  % (28644)------------------------------
% 0.20/0.56  % (28644)------------------------------
% 0.20/0.57  % (28650)ins+10_1:1_awrs=decay:awrsf=30:bsr=unit_only:foolp=on:igrr=8/457:igs=10:igwr=on:nwc=1.5:sp=weighted_frequency:to=lpo:uhcvi=on:i=68:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/68Mi)
% 0.20/0.57  % (28652)dis+34_1:32_abs=on:add=off:bsr=on:gsp=on:sp=weighted_frequency:i=99:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/99Mi)
% 0.20/0.57  % (28651)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)
% 0.20/0.57  % (28643)Instruction limit reached!
% 0.20/0.57  % (28643)------------------------------
% 0.20/0.57  % (28643)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 0.20/0.57  % (28643)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 0.20/0.57  % (28643)Termination reason: Unknown
% 0.20/0.57  % (28643)Termination phase: Property scanning
% 0.20/0.57  
% 0.20/0.57  % (28643)Memory used [KB]: 1279
% 0.20/0.57  % (28643)Time elapsed: 0.005 s
% 0.20/0.57  % (28643)Instructions burned: 7 (million)
% 0.20/0.57  % (28643)------------------------------
% 0.20/0.57  % (28643)------------------------------
% 0.20/0.58  % (28658)First to succeed.
% 0.20/0.58  % (28658)Refutation found. Thanks to Tanya!
% 0.20/0.58  % SZS status Theorem for theBenchmark
% 0.20/0.58  % SZS output start Proof for theBenchmark
% See solution above
% 0.20/0.58  % (28658)------------------------------
% 0.20/0.58  % (28658)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 0.20/0.58  % (28658)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 0.20/0.58  % (28658)Termination reason: Refutation
% 0.20/0.58  
% 0.20/0.58  % (28658)Memory used [KB]: 1407
% 0.20/0.58  % (28658)Time elapsed: 0.150 s
% 0.20/0.58  % (28658)Instructions burned: 11 (million)
% 0.20/0.58  % (28658)------------------------------
% 0.20/0.58  % (28658)------------------------------
% 0.20/0.58  % (28635)Success in time 0.227 s
%------------------------------------------------------------------------------