TSTP Solution File: SET930+1 by iProver---3.9

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : iProver---3.9
% Problem  : SET930+1 : TPTP v8.1.2. Released v3.2.0.
% 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 : Fri May  3 03:02:02 EDT 2024

% Result   : Theorem 4.06s 1.23s
% Output   : CNFRefutation 4.06s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    7
%            Number of leaves      :    6
% Syntax   : Number of formulae    :   41 (  14 unt;   0 def)
%            Number of atoms       :  127 (  70 equ)
%            Maximal formula atoms :    8 (   3 avg)
%            Number of connectives :  160 (  74   ~;  47   |;  35   &)
%                                         (   3 <=>;   1  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   10 (   5 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :    3 (   1 usr;   1 prp; 0-2 aty)
%            Number of functors    :    7 (   7 usr;   4 con; 0-2 aty)
%            Number of variables   :   66 (   0 sgn  46   !;   6   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f2,axiom,
    ! [X0,X1] : unordered_pair(X0,X1) = unordered_pair(X1,X0),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',commutativity_k2_tarski) ).

fof(f4,axiom,
    ! [X0,X1,X2] :
      ( set_difference(unordered_pair(X0,X1),X2) = singleton(X0)
    <=> ( ( X0 = X1
          | in(X1,X2) )
        & ~ in(X0,X2) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l39_zfmisc_1) ).

fof(f7,axiom,
    ! [X0,X1,X2] :
      ( unordered_pair(X0,X1) = set_difference(unordered_pair(X0,X1),X2)
    <=> ( ~ in(X1,X2)
        & ~ in(X0,X2) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t72_zfmisc_1) ).

fof(f8,axiom,
    ! [X0,X1,X2] :
      ( empty_set = set_difference(unordered_pair(X0,X1),X2)
    <=> ( in(X1,X2)
        & in(X0,X2) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t73_zfmisc_1) ).

fof(f9,conjecture,
    ! [X0,X1,X2] :
      ~ ( unordered_pair(X0,X1) != set_difference(unordered_pair(X0,X1),X2)
        & set_difference(unordered_pair(X0,X1),X2) != singleton(X1)
        & set_difference(unordered_pair(X0,X1),X2) != singleton(X0)
        & empty_set != set_difference(unordered_pair(X0,X1),X2) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t74_zfmisc_1) ).

fof(f10,negated_conjecture,
    ~ ! [X0,X1,X2] :
        ~ ( unordered_pair(X0,X1) != set_difference(unordered_pair(X0,X1),X2)
          & set_difference(unordered_pair(X0,X1),X2) != singleton(X1)
          & set_difference(unordered_pair(X0,X1),X2) != singleton(X0)
          & empty_set != set_difference(unordered_pair(X0,X1),X2) ),
    inference(negated_conjecture,[],[f9]) ).

fof(f12,plain,
    ? [X0,X1,X2] :
      ( unordered_pair(X0,X1) != set_difference(unordered_pair(X0,X1),X2)
      & set_difference(unordered_pair(X0,X1),X2) != singleton(X1)
      & set_difference(unordered_pair(X0,X1),X2) != singleton(X0)
      & empty_set != set_difference(unordered_pair(X0,X1),X2) ),
    inference(ennf_transformation,[],[f10]) ).

fof(f13,plain,
    ! [X0,X1,X2] :
      ( ( set_difference(unordered_pair(X0,X1),X2) = singleton(X0)
        | ( X0 != X1
          & ~ in(X1,X2) )
        | in(X0,X2) )
      & ( ( ( X0 = X1
            | in(X1,X2) )
          & ~ in(X0,X2) )
        | set_difference(unordered_pair(X0,X1),X2) != singleton(X0) ) ),
    inference(nnf_transformation,[],[f4]) ).

fof(f14,plain,
    ! [X0,X1,X2] :
      ( ( set_difference(unordered_pair(X0,X1),X2) = singleton(X0)
        | ( X0 != X1
          & ~ in(X1,X2) )
        | in(X0,X2) )
      & ( ( ( X0 = X1
            | in(X1,X2) )
          & ~ in(X0,X2) )
        | set_difference(unordered_pair(X0,X1),X2) != singleton(X0) ) ),
    inference(flattening,[],[f13]) ).

fof(f19,plain,
    ! [X0,X1,X2] :
      ( ( unordered_pair(X0,X1) = set_difference(unordered_pair(X0,X1),X2)
        | in(X1,X2)
        | in(X0,X2) )
      & ( ( ~ in(X1,X2)
          & ~ in(X0,X2) )
        | unordered_pair(X0,X1) != set_difference(unordered_pair(X0,X1),X2) ) ),
    inference(nnf_transformation,[],[f7]) ).

fof(f20,plain,
    ! [X0,X1,X2] :
      ( ( unordered_pair(X0,X1) = set_difference(unordered_pair(X0,X1),X2)
        | in(X1,X2)
        | in(X0,X2) )
      & ( ( ~ in(X1,X2)
          & ~ in(X0,X2) )
        | unordered_pair(X0,X1) != set_difference(unordered_pair(X0,X1),X2) ) ),
    inference(flattening,[],[f19]) ).

fof(f21,plain,
    ! [X0,X1,X2] :
      ( ( empty_set = set_difference(unordered_pair(X0,X1),X2)
        | ~ in(X1,X2)
        | ~ in(X0,X2) )
      & ( ( in(X1,X2)
          & in(X0,X2) )
        | empty_set != set_difference(unordered_pair(X0,X1),X2) ) ),
    inference(nnf_transformation,[],[f8]) ).

fof(f22,plain,
    ! [X0,X1,X2] :
      ( ( empty_set = set_difference(unordered_pair(X0,X1),X2)
        | ~ in(X1,X2)
        | ~ in(X0,X2) )
      & ( ( in(X1,X2)
          & in(X0,X2) )
        | empty_set != set_difference(unordered_pair(X0,X1),X2) ) ),
    inference(flattening,[],[f21]) ).

fof(f23,plain,
    ( ? [X0,X1,X2] :
        ( unordered_pair(X0,X1) != set_difference(unordered_pair(X0,X1),X2)
        & set_difference(unordered_pair(X0,X1),X2) != singleton(X1)
        & set_difference(unordered_pair(X0,X1),X2) != singleton(X0)
        & empty_set != set_difference(unordered_pair(X0,X1),X2) )
   => ( unordered_pair(sK2,sK3) != set_difference(unordered_pair(sK2,sK3),sK4)
      & set_difference(unordered_pair(sK2,sK3),sK4) != singleton(sK3)
      & set_difference(unordered_pair(sK2,sK3),sK4) != singleton(sK2)
      & empty_set != set_difference(unordered_pair(sK2,sK3),sK4) ) ),
    introduced(choice_axiom,[]) ).

fof(f24,plain,
    ( unordered_pair(sK2,sK3) != set_difference(unordered_pair(sK2,sK3),sK4)
    & set_difference(unordered_pair(sK2,sK3),sK4) != singleton(sK3)
    & set_difference(unordered_pair(sK2,sK3),sK4) != singleton(sK2)
    & empty_set != set_difference(unordered_pair(sK2,sK3),sK4) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK2,sK3,sK4])],[f12,f23]) ).

fof(f26,plain,
    ! [X0,X1] : unordered_pair(X0,X1) = unordered_pair(X1,X0),
    inference(cnf_transformation,[],[f2]) ).

fof(f30,plain,
    ! [X2,X0,X1] :
      ( set_difference(unordered_pair(X0,X1),X2) = singleton(X0)
      | ~ in(X1,X2)
      | in(X0,X2) ),
    inference(cnf_transformation,[],[f14]) ).

fof(f36,plain,
    ! [X2,X0,X1] :
      ( unordered_pair(X0,X1) = set_difference(unordered_pair(X0,X1),X2)
      | in(X1,X2)
      | in(X0,X2) ),
    inference(cnf_transformation,[],[f20]) ).

fof(f39,plain,
    ! [X2,X0,X1] :
      ( empty_set = set_difference(unordered_pair(X0,X1),X2)
      | ~ in(X1,X2)
      | ~ in(X0,X2) ),
    inference(cnf_transformation,[],[f22]) ).

fof(f40,plain,
    empty_set != set_difference(unordered_pair(sK2,sK3),sK4),
    inference(cnf_transformation,[],[f24]) ).

fof(f41,plain,
    set_difference(unordered_pair(sK2,sK3),sK4) != singleton(sK2),
    inference(cnf_transformation,[],[f24]) ).

fof(f42,plain,
    set_difference(unordered_pair(sK2,sK3),sK4) != singleton(sK3),
    inference(cnf_transformation,[],[f24]) ).

fof(f43,plain,
    unordered_pair(sK2,sK3) != set_difference(unordered_pair(sK2,sK3),sK4),
    inference(cnf_transformation,[],[f24]) ).

cnf(c_50,plain,
    unordered_pair(X0,X1) = unordered_pair(X1,X0),
    inference(cnf_transformation,[],[f26]) ).

cnf(c_53,plain,
    ( ~ in(X0,X1)
    | set_difference(unordered_pair(X2,X0),X1) = singleton(X2)
    | in(X2,X1) ),
    inference(cnf_transformation,[],[f30]) ).

cnf(c_58,plain,
    ( set_difference(unordered_pair(X0,X1),X2) = unordered_pair(X0,X1)
    | in(X0,X2)
    | in(X1,X2) ),
    inference(cnf_transformation,[],[f36]) ).

cnf(c_61,plain,
    ( ~ in(X0,X1)
    | ~ in(X2,X1)
    | set_difference(unordered_pair(X2,X0),X1) = empty_set ),
    inference(cnf_transformation,[],[f39]) ).

cnf(c_64,negated_conjecture,
    set_difference(unordered_pair(sK2,sK3),sK4) != unordered_pair(sK2,sK3),
    inference(cnf_transformation,[],[f43]) ).

cnf(c_65,negated_conjecture,
    set_difference(unordered_pair(sK2,sK3),sK4) != singleton(sK3),
    inference(cnf_transformation,[],[f42]) ).

cnf(c_66,negated_conjecture,
    set_difference(unordered_pair(sK2,sK3),sK4) != singleton(sK2),
    inference(cnf_transformation,[],[f41]) ).

cnf(c_67,negated_conjecture,
    set_difference(unordered_pair(sK2,sK3),sK4) != empty_set,
    inference(cnf_transformation,[],[f40]) ).

cnf(c_369,plain,
    set_difference(unordered_pair(sK3,sK2),sK4) != singleton(sK3),
    inference(demodulation,[status(thm)],[c_65,c_50]) ).

cnf(c_371,plain,
    set_difference(unordered_pair(sK3,sK2),sK4) != empty_set,
    inference(demodulation,[status(thm)],[c_67,c_50]) ).

cnf(c_485,plain,
    ( set_difference(unordered_pair(sK2,sK3),sK4) = unordered_pair(sK2,sK3)
    | in(sK2,sK4)
    | in(sK3,sK4) ),
    inference(instantiation,[status(thm)],[c_58]) ).

cnf(c_554,plain,
    ( ~ in(sK2,sK4)
    | set_difference(unordered_pair(X0,sK2),sK4) = singleton(X0)
    | in(X0,sK4) ),
    inference(instantiation,[status(thm)],[c_53]) ).

cnf(c_971,plain,
    ( ~ in(sK3,sK4)
    | set_difference(unordered_pair(X0,sK3),sK4) = singleton(X0)
    | in(X0,sK4) ),
    inference(instantiation,[status(thm)],[c_53]) ).

cnf(c_972,plain,
    ( ~ in(sK3,sK4)
    | set_difference(unordered_pair(sK2,sK3),sK4) = singleton(sK2)
    | in(sK2,sK4) ),
    inference(instantiation,[status(thm)],[c_971]) ).

cnf(c_977,plain,
    ( ~ in(X0,sK4)
    | ~ in(sK3,sK4)
    | set_difference(unordered_pair(sK3,X0),sK4) = empty_set ),
    inference(instantiation,[status(thm)],[c_61]) ).

cnf(c_978,plain,
    ( ~ in(sK2,sK4)
    | ~ in(sK3,sK4)
    | set_difference(unordered_pair(sK3,sK2),sK4) = empty_set ),
    inference(instantiation,[status(thm)],[c_977]) ).

cnf(c_2225,plain,
    ( ~ in(sK2,sK4)
    | set_difference(unordered_pair(sK3,sK2),sK4) = singleton(sK3)
    | in(sK3,sK4) ),
    inference(instantiation,[status(thm)],[c_554]) ).

cnf(c_2226,plain,
    $false,
    inference(prop_impl_just,[status(thm)],[c_2225,c_978,c_972,c_485,c_371,c_369,c_64,c_66]) ).


%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.08/0.13  % Problem  : SET930+1 : TPTP v8.1.2. Released v3.2.0.
% 0.08/0.14  % Command  : run_iprover %s %d THM
% 0.15/0.35  % Computer : n016.cluster.edu
% 0.15/0.35  % Model    : x86_64 x86_64
% 0.15/0.35  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.15/0.35  % Memory   : 8042.1875MB
% 0.15/0.35  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.15/0.35  % CPULimit : 300
% 0.15/0.35  % WCLimit  : 300
% 0.15/0.35  % DateTime : Thu May  2 20:53:45 EDT 2024
% 0.15/0.35  % CPUTime  : 
% 0.22/0.49  Running first-order theorem proving
% 0.22/0.49  Running: /export/starexec/sandbox/solver/bin/run_problem --schedule fof_schedule --heuristic_context casc_unsat --no_cores 8 /export/starexec/sandbox/benchmark/theBenchmark.p 300
% 4.06/1.23  % SZS status Started for theBenchmark.p
% 4.06/1.23  % SZS status Theorem for theBenchmark.p
% 4.06/1.23  
% 4.06/1.23  %---------------- iProver v3.9 (pre CASC 2024/SMT-COMP 2024) ----------------%
% 4.06/1.23  
% 4.06/1.23  ------  iProver source info
% 4.06/1.23  
% 4.06/1.23  git: date: 2024-05-02 19:28:25 +0000
% 4.06/1.23  git: sha1: a33b5eb135c74074ba803943bb12f2ebd971352f
% 4.06/1.23  git: non_committed_changes: false
% 4.06/1.23  
% 4.06/1.23  ------ Parsing...
% 4.06/1.23  ------ Clausification by vclausify_rel  & Parsing by iProver...
% 4.06/1.23  
% 4.06/1.23  ------ Preprocessing... sup_sim: 0  sf_s  rm: 1 0s  sf_e  pe_s  pe_e 
% 4.06/1.23  
% 4.06/1.23  ------ Preprocessing... gs_s  sp: 0 0s  gs_e  snvd_s sp: 0 0s snvd_e 
% 4.06/1.23  
% 4.06/1.23  ------ Preprocessing... sf_s  rm: 1 0s  sf_e  sf_s  rm: 0 0s  sf_e 
% 4.06/1.23  ------ Proving...
% 4.06/1.23  ------ Problem Properties 
% 4.06/1.23  
% 4.06/1.23  
% 4.06/1.23  clauses                                 19
% 4.06/1.23  conjectures                             4
% 4.06/1.23  EPR                                     4
% 4.06/1.23  Horn                                    15
% 4.06/1.23  unary                                   8
% 4.06/1.23  binary                                  7
% 4.06/1.23  lits                                    34
% 4.06/1.23  lits eq                                 16
% 4.06/1.23  fd_pure                                 0
% 4.06/1.23  fd_pseudo                               0
% 4.06/1.23  fd_cond                                 0
% 4.06/1.23  fd_pseudo_cond                          1
% 4.06/1.23  AC symbols                              0
% 4.06/1.23  
% 4.06/1.23  ------ Input Options Time Limit: Unbounded
% 4.06/1.23  
% 4.06/1.23  
% 4.06/1.23  ------ 
% 4.06/1.23  Current options:
% 4.06/1.23  ------ 
% 4.06/1.23  
% 4.06/1.23  
% 4.06/1.23  
% 4.06/1.23  
% 4.06/1.23  ------ Proving...
% 4.06/1.23  
% 4.06/1.23  
% 4.06/1.23  % SZS status Theorem for theBenchmark.p
% 4.06/1.23  
% 4.06/1.23  % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 4.06/1.23  
% 4.06/1.24  
%------------------------------------------------------------------------------