TSTP Solution File: SET930+1 by iProver---3.8

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : iProver---3.8
% Problem  : SET930+1 : TPTP v8.1.2. Released v3.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run_iprover %s %d THM

% Computer : n020.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 15:10:42 EDT 2023

% Result   : Theorem 3.70s 1.12s
% Output   : CNFRefutation 3.70s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   24
%            Number of leaves      :    7
% Syntax   : Number of formulae    :   71 (  21 unt;   0 def)
%            Number of atoms       :  183 ( 105 equ)
%            Maximal formula atoms :    8 (   2 avg)
%            Number of connectives :  207 (  95   ~;  72   |;  35   &)
%                                         (   3 <=>;   2  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   10 (   4 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   :  126 (   2 sgn;  66   !;   6   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f1,axiom,
    ! [X0,X1] :
      ( in(X0,X1)
     => ~ in(X1,X0) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',antisymmetry_r2_hidden) ).

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(f11,plain,
    ! [X0,X1] :
      ( ~ in(X1,X0)
      | ~ in(X0,X1) ),
    inference(ennf_transformation,[],[f1]) ).

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(f25,plain,
    ! [X0,X1] :
      ( ~ in(X1,X0)
      | ~ in(X0,X1) ),
    inference(cnf_transformation,[],[f11]) ).

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

fof(f28,plain,
    ! [X2,X0,X1] :
      ( ~ in(X0,X2)
      | set_difference(unordered_pair(X0,X1),X2) != singleton(X0) ),
    inference(cnf_transformation,[],[f14]) ).

fof(f29,plain,
    ! [X2,X0,X1] :
      ( X0 = X1
      | in(X1,X2)
      | set_difference(unordered_pair(X0,X1),X2) != singleton(X0) ),
    inference(cnf_transformation,[],[f14]) ).

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(f31,plain,
    ! [X2,X0,X1] :
      ( set_difference(unordered_pair(X0,X1),X2) = singleton(X0)
      | X0 != X1
      | in(X0,X2) ),
    inference(cnf_transformation,[],[f14]) ).

fof(f34,plain,
    ! [X2,X0,X1] :
      ( ~ in(X0,X2)
      | unordered_pair(X0,X1) != set_difference(unordered_pair(X0,X1),X2) ),
    inference(cnf_transformation,[],[f20]) ).

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]) ).

fof(f44,plain,
    ! [X2,X1] :
      ( singleton(X1) = set_difference(unordered_pair(X1,X1),X2)
      | in(X1,X2) ),
    inference(equality_resolution,[],[f31]) ).

cnf(c_49,plain,
    ( ~ in(X0,X1)
    | ~ in(X1,X0) ),
    inference(cnf_transformation,[],[f25]) ).

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

cnf(c_52,plain,
    ( set_difference(unordered_pair(X0,X0),X1) = singleton(X0)
    | in(X0,X1) ),
    inference(cnf_transformation,[],[f44]) ).

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_54,plain,
    ( set_difference(unordered_pair(X0,X1),X2) != singleton(X0)
    | X0 = X1
    | in(X1,X2) ),
    inference(cnf_transformation,[],[f29]) ).

cnf(c_55,plain,
    ( set_difference(unordered_pair(X0,X1),X2) != singleton(X0)
    | ~ in(X0,X2) ),
    inference(cnf_transformation,[],[f28]) ).

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_60,plain,
    ( set_difference(unordered_pair(X0,X1),X2) != unordered_pair(X0,X1)
    | ~ in(X0,X2) ),
    inference(cnf_transformation,[],[f34]) ).

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_424,plain,
    ( ~ in(X0,X1)
    | set_difference(unordered_pair(X1,X1),X0) = singleton(X1) ),
    inference(superposition,[status(thm)],[c_52,c_49]) ).

cnf(c_443,plain,
    ( set_difference(unordered_pair(X0,X1),X2) != singleton(X1)
    | ~ in(X1,X2) ),
    inference(superposition,[status(thm)],[c_50,c_55]) ).

cnf(c_451,plain,
    ( set_difference(unordered_pair(X0,X0),X1) = singleton(X0)
    | set_difference(unordered_pair(X1,X1),X0) = singleton(X1) ),
    inference(superposition,[status(thm)],[c_52,c_424]) ).

cnf(c_495,plain,
    ( set_difference(unordered_pair(X0,X0),X1) = unordered_pair(X0,X0)
    | in(X0,X1) ),
    inference(equality_factoring,[status(thm)],[c_58]) ).

cnf(c_582,plain,
    ( set_difference(unordered_pair(X0,X1),X2) != singleton(X1)
    | X0 = X1
    | in(X0,X2) ),
    inference(superposition,[status(thm)],[c_50,c_54]) ).

cnf(c_646,plain,
    ( ~ in(sK3,sK4)
    | set_difference(unordered_pair(sK2,sK3),sK4) = singleton(sK2)
    | in(sK2,sK4) ),
    inference(instantiation,[status(thm)],[c_53]) ).

cnf(c_665,plain,
    ( singleton(X0) != singleton(X0)
    | set_difference(unordered_pair(X0,X0),X0) = singleton(X0) ),
    inference(equality_factoring,[status(thm)],[c_451]) ).

cnf(c_667,plain,
    set_difference(unordered_pair(X0,X0),X0) = singleton(X0),
    inference(equality_resolution_simp,[status(thm)],[c_665]) ).

cnf(c_746,plain,
    ~ in(X0,X0),
    inference(superposition,[status(thm)],[c_667,c_443]) ).

cnf(c_753,plain,
    set_difference(unordered_pair(X0,X0),X0) = unordered_pair(X0,X0),
    inference(superposition,[status(thm)],[c_495,c_746]) ).

cnf(c_756,plain,
    ( set_difference(unordered_pair(X0,X1),X1) = unordered_pair(X0,X1)
    | in(X0,X1) ),
    inference(superposition,[status(thm)],[c_58,c_746]) ).

cnf(c_757,plain,
    unordered_pair(X0,X0) = singleton(X0),
    inference(light_normalisation,[status(thm)],[c_753,c_667]) ).

cnf(c_767,plain,
    ( set_difference(singleton(X0),X1) = singleton(X0)
    | in(X0,X1) ),
    inference(demodulation,[status(thm)],[c_52,c_757]) ).

cnf(c_782,plain,
    ( set_difference(singleton(X0),X1) != singleton(X0)
    | ~ in(X0,X1) ),
    inference(superposition,[status(thm)],[c_757,c_60]) ).

cnf(c_799,plain,
    ( ~ in(X0,X1)
    | set_difference(unordered_pair(X0,X2),X1) = empty_set
    | set_difference(singleton(X2),X1) = singleton(X2) ),
    inference(superposition,[status(thm)],[c_767,c_61]) ).

cnf(c_815,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_987,plain,
    ( set_difference(unordered_pair(X0,X1),X1) = unordered_pair(X0,X1)
    | set_difference(unordered_pair(X0,X2),X1) = empty_set
    | set_difference(singleton(X2),X1) = singleton(X2) ),
    inference(superposition,[status(thm)],[c_756,c_799]) ).

cnf(c_1591,plain,
    ( set_difference(unordered_pair(sK2,sK4),sK4) = unordered_pair(sK2,sK4)
    | set_difference(singleton(sK3),sK4) = singleton(sK3) ),
    inference(superposition,[status(thm)],[c_987,c_67]) ).

cnf(c_1693,plain,
    ( unordered_pair(sK2,sK4) != singleton(sK4)
    | set_difference(singleton(sK3),sK4) = singleton(sK3)
    | sK2 = sK4
    | in(sK2,sK4) ),
    inference(superposition,[status(thm)],[c_1591,c_582]) ).

cnf(c_1695,plain,
    ( ~ in(sK2,sK4)
    | set_difference(singleton(sK3),sK4) = singleton(sK3) ),
    inference(superposition,[status(thm)],[c_1591,c_60]) ).

cnf(c_1742,plain,
    set_difference(singleton(sK3),sK4) = singleton(sK3),
    inference(global_subsumption_just,[status(thm)],[c_1695,c_66,c_64,c_646,c_815,c_1695]) ).

cnf(c_1745,plain,
    ~ in(sK3,sK4),
    inference(superposition,[status(thm)],[c_1742,c_782]) ).

cnf(c_1827,plain,
    in(sK2,sK4),
    inference(global_subsumption_just,[status(thm)],[c_1693,c_64,c_815,c_1745]) ).

cnf(c_1837,plain,
    ( set_difference(unordered_pair(X0,sK2),sK4) = singleton(X0)
    | in(X0,sK4) ),
    inference(superposition,[status(thm)],[c_1827,c_53]) ).

cnf(c_2109,plain,
    set_difference(unordered_pair(sK3,sK2),sK4) = singleton(sK3),
    inference(superposition,[status(thm)],[c_1837,c_1745]) ).

cnf(c_2260,plain,
    set_difference(unordered_pair(sK2,sK3),sK4) = singleton(sK3),
    inference(demodulation,[status(thm)],[c_2109,c_50]) ).

cnf(c_2261,plain,
    $false,
    inference(forward_subsumption_resolution,[status(thm)],[c_2260,c_65]) ).


%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.12  % Problem  : SET930+1 : TPTP v8.1.2. Released v3.2.0.
% 0.00/0.12  % Command  : run_iprover %s %d THM
% 0.11/0.34  % Computer : n020.cluster.edu
% 0.11/0.34  % Model    : x86_64 x86_64
% 0.11/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.11/0.34  % Memory   : 8042.1875MB
% 0.11/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.11/0.34  % CPULimit : 300
% 0.11/0.34  % WCLimit  : 300
% 0.11/0.34  % DateTime : Sat Aug 26 09:16:15 EDT 2023
% 0.11/0.34  % CPUTime  : 
% 0.18/0.46  Running first-order theorem proving
% 0.18/0.46  Running: /export/starexec/sandbox/solver/bin/run_problem --schedule fof_schedule --no_cores 8 /export/starexec/sandbox/benchmark/theBenchmark.p 300
% 3.70/1.12  % SZS status Started for theBenchmark.p
% 3.70/1.12  % SZS status Theorem for theBenchmark.p
% 3.70/1.12  
% 3.70/1.12  %---------------- iProver v3.8 (pre SMT-COMP 2023/CASC 2023) ----------------%
% 3.70/1.12  
% 3.70/1.12  ------  iProver source info
% 3.70/1.12  
% 3.70/1.12  git: date: 2023-05-31 18:12:56 +0000
% 3.70/1.12  git: sha1: 8abddc1f627fd3ce0bcb8b4cbf113b3cc443d7b6
% 3.70/1.12  git: non_committed_changes: false
% 3.70/1.12  git: last_make_outside_of_git: false
% 3.70/1.12  
% 3.70/1.12  ------ Parsing...
% 3.70/1.12  ------ Clausification by vclausify_rel  & Parsing by iProver...
% 3.70/1.12  
% 3.70/1.12  ------ Preprocessing... sup_sim: 0  sf_s  rm: 1 0s  sf_e  pe_s  pe_e 
% 3.70/1.12  
% 3.70/1.12  ------ Preprocessing... gs_s  sp: 0 0s  gs_e  snvd_s sp: 0 0s snvd_e 
% 3.70/1.12  
% 3.70/1.12  ------ Preprocessing... sf_s  rm: 1 0s  sf_e  sf_s  rm: 0 0s  sf_e 
% 3.70/1.12  ------ Proving...
% 3.70/1.12  ------ Problem Properties 
% 3.70/1.12  
% 3.70/1.12  
% 3.70/1.12  clauses                                 19
% 3.70/1.12  conjectures                             4
% 3.70/1.12  EPR                                     4
% 3.70/1.12  Horn                                    15
% 3.70/1.12  unary                                   8
% 3.70/1.12  binary                                  7
% 3.70/1.12  lits                                    34
% 3.70/1.12  lits eq                                 16
% 3.70/1.12  fd_pure                                 0
% 3.70/1.12  fd_pseudo                               0
% 3.70/1.12  fd_cond                                 0
% 3.70/1.12  fd_pseudo_cond                          1
% 3.70/1.12  AC symbols                              0
% 3.70/1.12  
% 3.70/1.12  ------ Schedule dynamic 5 is on 
% 3.70/1.12  
% 3.70/1.12  ------ Input Options "--resolution_flag false --inst_lit_sel_side none" Time Limit: 10.
% 3.70/1.12  
% 3.70/1.12  
% 3.70/1.12  ------ 
% 3.70/1.12  Current options:
% 3.70/1.12  ------ 
% 3.70/1.12  
% 3.70/1.12  
% 3.70/1.12  
% 3.70/1.12  
% 3.70/1.12  ------ Proving...
% 3.70/1.12  
% 3.70/1.12  
% 3.70/1.12  % SZS status Theorem for theBenchmark.p
% 3.70/1.12  
% 3.70/1.12  % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 3.70/1.12  
% 3.70/1.12  
%------------------------------------------------------------------------------