TSTP Solution File: SET074+1 by iProver---3.8

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : iProver---3.8
% Problem  : SET074+1 : TPTP v8.1.2. Bugfixed v5.4.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run_iprover %s %d THM

% Computer : n016.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 15:06:12 EDT 2023

% Result   : Theorem 1.88s 1.15s
% Output   : CNFRefutation 1.88s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    8
%            Number of leaves      :    4
% Syntax   : Number of formulae    :   21 (   8 unt;   0 def)
%            Number of atoms       :   53 (  21 equ)
%            Maximal formula atoms :    8 (   2 avg)
%            Number of connectives :   51 (  19   ~;  15   |;  12   &)
%                                         (   2 <=>;   3  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    9 (   4 avg)
%            Maximal term depth    :    2 (   1 avg)
%            Number of predicates  :    3 (   1 usr;   1 prp; 0-2 aty)
%            Number of functors    :    5 (   5 usr;   4 con; 0-2 aty)
%            Number of variables   :   30 (   2 sgn;  23   !;   4   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f4,axiom,
    ! [X2,X0,X1] :
      ( member(X2,unordered_pair(X0,X1))
    <=> ( ( X1 = X2
          | X0 = X2 )
        & member(X2,universal_class) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',unordered_pair_defn) ).

fof(f16,axiom,
    ! [X0] : ~ member(X0,null_class),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',null_class_defn) ).

fof(f44,conjecture,
    ! [X0,X1] :
      ( member(X1,universal_class)
     => unordered_pair(X0,X1) != null_class ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',corollary1_2) ).

fof(f45,negated_conjecture,
    ~ ! [X0,X1] :
        ( member(X1,universal_class)
       => unordered_pair(X0,X1) != null_class ),
    inference(negated_conjecture,[],[f44]) ).

fof(f46,plain,
    ! [X0,X1,X2] :
      ( member(X0,unordered_pair(X1,X2))
    <=> ( ( X0 = X2
          | X0 = X1 )
        & member(X0,universal_class) ) ),
    inference(rectify,[],[f4]) ).

fof(f84,plain,
    ? [X0,X1] :
      ( unordered_pair(X0,X1) = null_class
      & member(X1,universal_class) ),
    inference(ennf_transformation,[],[f45]) ).

fof(f91,plain,
    ! [X0,X1,X2] :
      ( ( member(X0,unordered_pair(X1,X2))
        | ( X0 != X2
          & X0 != X1 )
        | ~ member(X0,universal_class) )
      & ( ( ( X0 = X2
            | X0 = X1 )
          & member(X0,universal_class) )
        | ~ member(X0,unordered_pair(X1,X2)) ) ),
    inference(nnf_transformation,[],[f46]) ).

fof(f92,plain,
    ! [X0,X1,X2] :
      ( ( member(X0,unordered_pair(X1,X2))
        | ( X0 != X2
          & X0 != X1 )
        | ~ member(X0,universal_class) )
      & ( ( ( X0 = X2
            | X0 = X1 )
          & member(X0,universal_class) )
        | ~ member(X0,unordered_pair(X1,X2)) ) ),
    inference(flattening,[],[f91]) ).

fof(f133,plain,
    ( ? [X0,X1] :
        ( unordered_pair(X0,X1) = null_class
        & member(X1,universal_class) )
   => ( null_class = unordered_pair(sK6,sK7)
      & member(sK7,universal_class) ) ),
    introduced(choice_axiom,[]) ).

fof(f134,plain,
    ( null_class = unordered_pair(sK6,sK7)
    & member(sK7,universal_class) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK6,sK7])],[f84,f133]) ).

fof(f145,plain,
    ! [X2,X0,X1] :
      ( member(X0,unordered_pair(X1,X2))
      | X0 != X2
      | ~ member(X0,universal_class) ),
    inference(cnf_transformation,[],[f92]) ).

fof(f166,plain,
    ! [X0] : ~ member(X0,null_class),
    inference(cnf_transformation,[],[f16]) ).

fof(f222,plain,
    member(sK7,universal_class),
    inference(cnf_transformation,[],[f134]) ).

fof(f223,plain,
    null_class = unordered_pair(sK6,sK7),
    inference(cnf_transformation,[],[f134]) ).

fof(f263,plain,
    ! [X2,X1] :
      ( member(X2,unordered_pair(X1,X2))
      | ~ member(X2,universal_class) ),
    inference(equality_resolution,[],[f145]) ).

cnf(c_56,plain,
    ( ~ member(X0,universal_class)
    | member(X0,unordered_pair(X1,X0)) ),
    inference(cnf_transformation,[],[f263]) ).

cnf(c_77,plain,
    ~ member(X0,null_class),
    inference(cnf_transformation,[],[f166]) ).

cnf(c_128,negated_conjecture,
    unordered_pair(sK6,sK7) = null_class,
    inference(cnf_transformation,[],[f223]) ).

cnf(c_129,negated_conjecture,
    member(sK7,universal_class),
    inference(cnf_transformation,[],[f222]) ).

cnf(c_2464,plain,
    ( ~ member(sK7,universal_class)
    | member(sK7,null_class) ),
    inference(superposition,[status(thm)],[c_128,c_56]) ).

cnf(c_2465,plain,
    $false,
    inference(forward_subsumption_resolution,[status(thm)],[c_2464,c_77,c_129]) ).


%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.12  % Problem  : SET074+1 : TPTP v8.1.2. Bugfixed v5.4.0.
% 0.00/0.13  % Command  : run_iprover %s %d THM
% 0.13/0.34  % Computer : n016.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 : Sat Aug 26 09:42:12 EDT 2023
% 0.13/0.35  % CPUTime  : 
% 0.20/0.47  Running first-order theorem proving
% 0.20/0.47  Running: /export/starexec/sandbox2/solver/bin/run_problem --schedule fof_schedule --no_cores 8 /export/starexec/sandbox2/benchmark/theBenchmark.p 300
% 1.88/1.15  % SZS status Started for theBenchmark.p
% 1.88/1.15  % SZS status Theorem for theBenchmark.p
% 1.88/1.15  
% 1.88/1.15  %---------------- iProver v3.8 (pre SMT-COMP 2023/CASC 2023) ----------------%
% 1.88/1.15  
% 1.88/1.15  ------  iProver source info
% 1.88/1.15  
% 1.88/1.15  git: date: 2023-05-31 18:12:56 +0000
% 1.88/1.15  git: sha1: 8abddc1f627fd3ce0bcb8b4cbf113b3cc443d7b6
% 1.88/1.15  git: non_committed_changes: false
% 1.88/1.15  git: last_make_outside_of_git: false
% 1.88/1.15  
% 1.88/1.15  ------ Parsing...
% 1.88/1.15  ------ Clausification by vclausify_rel  & Parsing by iProver...
% 1.88/1.15  
% 1.88/1.15  ------ Preprocessing... sup_sim: 0  sf_s  rm: 1 0s  sf_e  pe_s  pe:1:0s pe:2:0s pe_e  sup_sim: 0  sf_s  rm: 4 0s  sf_e  pe_s  pe_e 
% 1.88/1.15  
% 1.88/1.15  ------ Preprocessing... gs_s  sp: 0 0s  gs_e  snvd_s sp: 0 0s snvd_e 
% 1.88/1.15  
% 1.88/1.15  ------ Preprocessing... sf_s  rm: 1 0s  sf_e  sf_s  rm: 0 0s  sf_e 
% 1.88/1.15  ------ Proving...
% 1.88/1.15  ------ Problem Properties 
% 1.88/1.15  
% 1.88/1.15  
% 1.88/1.15  clauses                                 76
% 1.88/1.15  conjectures                             2
% 1.88/1.15  EPR                                     8
% 1.88/1.15  Horn                                    68
% 1.88/1.15  unary                                   16
% 1.88/1.15  binary                                  39
% 1.88/1.15  lits                                    158
% 1.88/1.15  lits eq                                 15
% 1.88/1.15  fd_pure                                 0
% 1.88/1.15  fd_pseudo                               0
% 1.88/1.15  fd_cond                                 4
% 1.88/1.15  fd_pseudo_cond                          3
% 1.88/1.15  AC symbols                              0
% 1.88/1.15  
% 1.88/1.15  ------ Schedule dynamic 5 is on 
% 1.88/1.15  
% 1.88/1.15  ------ Input Options "--resolution_flag false --inst_lit_sel_side none" Time Limit: 10.
% 1.88/1.15  
% 1.88/1.15  
% 1.88/1.15  ------ 
% 1.88/1.15  Current options:
% 1.88/1.15  ------ 
% 1.88/1.15  
% 1.88/1.15  
% 1.88/1.15  
% 1.88/1.15  
% 1.88/1.15  ------ Proving...
% 1.88/1.15  
% 1.88/1.15  
% 1.88/1.15  % SZS status Theorem for theBenchmark.p
% 1.88/1.15  
% 1.88/1.15  % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 1.88/1.15  
% 1.88/1.15  
%------------------------------------------------------------------------------