TSTP Solution File: SET062+4 by iProver---3.8

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : iProver---3.8
% Problem  : SET062+4 : TPTP v8.1.2. Released v2.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run_iprover %s %d THM

% 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 15:06:02 EDT 2023

% Result   : Theorem 0.77s 1.16s
% Output   : CNFRefutation 0.77s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   11
%            Number of leaves      :    5
% Syntax   : Number of formulae    :   24 (  12 unt;   0 def)
%            Number of atoms       :   53 (   2 equ)
%            Maximal formula atoms :    6 (   2 avg)
%            Number of connectives :   54 (  25   ~;  16   |;   8   &)
%                                         (   2 <=>;   3  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    8 (   4 avg)
%            Maximal term depth    :    2 (   1 avg)
%            Number of predicates  :    4 (   2 usr;   1 prp; 0-2 aty)
%            Number of functors    :    3 (   3 usr;   2 con; 0-2 aty)
%            Number of variables   :   38 (   1 sgn;  24   !;   5   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f1,axiom,
    ! [X0,X1] :
      ( subset(X0,X1)
    <=> ! [X2] :
          ( member(X2,X0)
         => member(X2,X1) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',subset) ).

fof(f6,axiom,
    ! [X2] : ~ member(X2,empty_set),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',empty_set) ).

fof(f12,conjecture,
    ! [X0] : subset(empty_set,X0),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',thI15) ).

fof(f13,negated_conjecture,
    ~ ! [X0] : subset(empty_set,X0),
    inference(negated_conjecture,[],[f12]) ).

fof(f17,plain,
    ! [X0] : ~ member(X0,empty_set),
    inference(rectify,[],[f6]) ).

fof(f23,plain,
    ! [X0,X1] :
      ( subset(X0,X1)
    <=> ! [X2] :
          ( member(X2,X1)
          | ~ member(X2,X0) ) ),
    inference(ennf_transformation,[],[f1]) ).

fof(f25,plain,
    ? [X0] : ~ subset(empty_set,X0),
    inference(ennf_transformation,[],[f13]) ).

fof(f26,plain,
    ! [X0,X1] :
      ( ( subset(X0,X1)
        | ? [X2] :
            ( ~ member(X2,X1)
            & member(X2,X0) ) )
      & ( ! [X2] :
            ( member(X2,X1)
            | ~ member(X2,X0) )
        | ~ subset(X0,X1) ) ),
    inference(nnf_transformation,[],[f23]) ).

fof(f27,plain,
    ! [X0,X1] :
      ( ( subset(X0,X1)
        | ? [X2] :
            ( ~ member(X2,X1)
            & member(X2,X0) ) )
      & ( ! [X3] :
            ( member(X3,X1)
            | ~ member(X3,X0) )
        | ~ subset(X0,X1) ) ),
    inference(rectify,[],[f26]) ).

fof(f28,plain,
    ! [X0,X1] :
      ( ? [X2] :
          ( ~ member(X2,X1)
          & member(X2,X0) )
     => ( ~ member(sK0(X0,X1),X1)
        & member(sK0(X0,X1),X0) ) ),
    introduced(choice_axiom,[]) ).

fof(f29,plain,
    ! [X0,X1] :
      ( ( subset(X0,X1)
        | ( ~ member(sK0(X0,X1),X1)
          & member(sK0(X0,X1),X0) ) )
      & ( ! [X3] :
            ( member(X3,X1)
            | ~ member(X3,X0) )
        | ~ subset(X0,X1) ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK0])],[f27,f28]) ).

fof(f48,plain,
    ( ? [X0] : ~ subset(empty_set,X0)
   => ~ subset(empty_set,sK3) ),
    introduced(choice_axiom,[]) ).

fof(f49,plain,
    ~ subset(empty_set,sK3),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK3])],[f25,f48]) ).

fof(f51,plain,
    ! [X0,X1] :
      ( subset(X0,X1)
      | member(sK0(X0,X1),X0) ),
    inference(cnf_transformation,[],[f29]) ).

fof(f61,plain,
    ! [X0] : ~ member(X0,empty_set),
    inference(cnf_transformation,[],[f17]) ).

fof(f76,plain,
    ~ subset(empty_set,sK3),
    inference(cnf_transformation,[],[f49]) ).

cnf(c_50,plain,
    ( member(sK0(X0,X1),X0)
    | subset(X0,X1) ),
    inference(cnf_transformation,[],[f51]) ).

cnf(c_60,plain,
    ~ member(X0,empty_set),
    inference(cnf_transformation,[],[f61]) ).

cnf(c_75,negated_conjecture,
    ~ subset(empty_set,sK3),
    inference(cnf_transformation,[],[f76]) ).

cnf(c_100,plain,
    ( subset(X0,X1)
    | member(sK0(X0,X1),X0) ),
    inference(prop_impl_just,[status(thm)],[c_50]) ).

cnf(c_101,plain,
    ( member(sK0(X0,X1),X0)
    | subset(X0,X1) ),
    inference(renaming,[status(thm)],[c_100]) ).

cnf(c_463,plain,
    ( X0 != empty_set
    | X1 != sK3
    | member(sK0(X0,X1),X0) ),
    inference(resolution_lifted,[status(thm)],[c_101,c_75]) ).

cnf(c_464,plain,
    member(sK0(empty_set,sK3),empty_set),
    inference(unflattening,[status(thm)],[c_463]) ).

cnf(c_467,plain,
    $false,
    inference(forward_subsumption_resolution,[status(thm)],[c_464,c_60]) ).


%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.12  % Problem  : SET062+4 : TPTP v8.1.2. Released v2.2.0.
% 0.13/0.13  % Command  : run_iprover %s %d THM
% 0.13/0.35  % Computer : n004.cluster.edu
% 0.13/0.35  % Model    : x86_64 x86_64
% 0.13/0.35  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.35  % Memory   : 8042.1875MB
% 0.13/0.35  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.35  % CPULimit : 300
% 0.13/0.35  % WCLimit  : 300
% 0.13/0.35  % DateTime : Sat Aug 26 11:45:53 EDT 2023
% 0.13/0.36  % CPUTime  : 
% 0.21/0.49  Running first-order theorem proving
% 0.21/0.49  Running: /export/starexec/sandbox/solver/bin/run_problem --schedule fof_schedule --no_cores 8 /export/starexec/sandbox/benchmark/theBenchmark.p 300
% 0.77/1.16  % SZS status Started for theBenchmark.p
% 0.77/1.16  % SZS status Theorem for theBenchmark.p
% 0.77/1.16  
% 0.77/1.16  %---------------- iProver v3.8 (pre SMT-COMP 2023/CASC 2023) ----------------%
% 0.77/1.16  
% 0.77/1.16  ------  iProver source info
% 0.77/1.16  
% 0.77/1.16  git: date: 2023-05-31 18:12:56 +0000
% 0.77/1.16  git: sha1: 8abddc1f627fd3ce0bcb8b4cbf113b3cc443d7b6
% 0.77/1.16  git: non_committed_changes: false
% 0.77/1.16  git: last_make_outside_of_git: false
% 0.77/1.16  
% 0.77/1.16  ------ Parsing...
% 0.77/1.16  ------ Clausification by vclausify_rel  & Parsing by iProver...
% 0.77/1.16  
% 0.77/1.16  ------ Preprocessing... sup_sim: 0  sf_s  rm: 1 0s  sf_e  pe_s 
% 0.77/1.16  
% 0.77/1.16  % SZS status Theorem for theBenchmark.p
% 0.77/1.16  
% 0.77/1.16  % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 0.77/1.16  
% 0.77/1.16  
%------------------------------------------------------------------------------