TSTP Solution File: SET016+4 by iProver---3.8

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : iProver---3.8
% Problem  : SET016+4 : TPTP v8.1.2. Released v2.2.0.
% 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 : Thu Aug 31 15:05:31 EDT 2023

% Result   : Theorem 3.55s 1.17s
% Output   : CNFRefutation 3.55s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   14
%            Number of leaves      :    8
% Syntax   : Number of formulae    :   64 (  15 unt;   0 def)
%            Number of atoms       :  155 (  54 equ)
%            Maximal formula atoms :    6 (   2 avg)
%            Number of connectives :  151 (  60   ~;  57   |;  20   &)
%                                         (   7 <=>;   7  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    8 (   4 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :    5 (   3 usr;   1 prp; 0-2 aty)
%            Number of functors    :    7 (   7 usr;   4 con; 0-2 aty)
%            Number of variables   :  117 (   2 sgn;  73   !;  11   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f1,axiom,
    ! [X0,X1] :
      ( subset(X0,X1)
    <=> ! [X2] :
          ( member(X2,X0)
         => member(X2,X1) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',subset) ).

fof(f2,axiom,
    ! [X0,X1] :
      ( equal_set(X0,X1)
    <=> ( subset(X1,X0)
        & subset(X0,X1) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',equal_set) ).

fof(f8,axiom,
    ! [X2,X0] :
      ( member(X2,singleton(X0))
    <=> X0 = X2 ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',singleton) ).

fof(f9,axiom,
    ! [X2,X0,X1] :
      ( member(X2,unordered_pair(X0,X1))
    <=> ( X1 = X2
        | X0 = X2 ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',unordered_pair) ).

fof(f12,conjecture,
    ! [X0,X1,X5,X6] :
      ( equal_set(unordered_pair(singleton(X0),unordered_pair(X0,X1)),unordered_pair(singleton(X5),unordered_pair(X5,X6)))
     => X0 = X5 ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',thI50a) ).

fof(f13,negated_conjecture,
    ~ ! [X0,X1,X5,X6] :
        ( equal_set(unordered_pair(singleton(X0),unordered_pair(X0,X1)),unordered_pair(singleton(X5),unordered_pair(X5,X6)))
       => X0 = X5 ),
    inference(negated_conjecture,[],[f12]) ).

fof(f19,plain,
    ! [X0,X1] :
      ( member(X0,singleton(X1))
    <=> X0 = X1 ),
    inference(rectify,[],[f8]) ).

fof(f20,plain,
    ! [X0,X1,X2] :
      ( member(X0,unordered_pair(X1,X2))
    <=> ( X0 = X2
        | X0 = X1 ) ),
    inference(rectify,[],[f9]) ).

fof(f23,plain,
    ~ ! [X0,X1,X2,X3] :
        ( equal_set(unordered_pair(singleton(X0),unordered_pair(X0,X1)),unordered_pair(singleton(X2),unordered_pair(X2,X3)))
       => X0 = X2 ),
    inference(rectify,[],[f13]) ).

fof(f24,plain,
    ! [X0,X1] :
      ( equal_set(X0,X1)
     => ( subset(X1,X0)
        & subset(X0,X1) ) ),
    inference(unused_predicate_definition_removal,[],[f2]) ).

fof(f25,plain,
    ! [X0,X1] :
      ( subset(X0,X1)
    <=> ! [X2] :
          ( member(X2,X1)
          | ~ member(X2,X0) ) ),
    inference(ennf_transformation,[],[f1]) ).

fof(f26,plain,
    ! [X0,X1] :
      ( ( subset(X1,X0)
        & subset(X0,X1) )
      | ~ equal_set(X0,X1) ),
    inference(ennf_transformation,[],[f24]) ).

fof(f28,plain,
    ? [X0,X1,X2,X3] :
      ( X0 != X2
      & equal_set(unordered_pair(singleton(X0),unordered_pair(X0,X1)),unordered_pair(singleton(X2),unordered_pair(X2,X3))) ),
    inference(ennf_transformation,[],[f23]) ).

fof(f29,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,[],[f25]) ).

fof(f30,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,[],[f29]) ).

fof(f31,plain,
    ! [X0,X1] :
      ( ? [X2] :
          ( ~ member(X2,X1)
          & member(X2,X0) )
     => ( ~ member(sK0(X0,X1),X1)
        & member(sK0(X0,X1),X0) ) ),
    introduced(choice_axiom,[]) ).

fof(f32,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])],[f30,f31]) ).

fof(f40,plain,
    ! [X0,X1] :
      ( ( member(X0,singleton(X1))
        | X0 != X1 )
      & ( X0 = X1
        | ~ member(X0,singleton(X1)) ) ),
    inference(nnf_transformation,[],[f19]) ).

fof(f41,plain,
    ! [X0,X1,X2] :
      ( ( member(X0,unordered_pair(X1,X2))
        | ( X0 != X2
          & X0 != X1 ) )
      & ( X0 = X2
        | X0 = X1
        | ~ member(X0,unordered_pair(X1,X2)) ) ),
    inference(nnf_transformation,[],[f20]) ).

fof(f42,plain,
    ! [X0,X1,X2] :
      ( ( member(X0,unordered_pair(X1,X2))
        | ( X0 != X2
          & X0 != X1 ) )
      & ( X0 = X2
        | X0 = X1
        | ~ member(X0,unordered_pair(X1,X2)) ) ),
    inference(flattening,[],[f41]) ).

fof(f51,plain,
    ( ? [X0,X1,X2,X3] :
        ( X0 != X2
        & equal_set(unordered_pair(singleton(X0),unordered_pair(X0,X1)),unordered_pair(singleton(X2),unordered_pair(X2,X3))) )
   => ( sK3 != sK5
      & equal_set(unordered_pair(singleton(sK3),unordered_pair(sK3,sK4)),unordered_pair(singleton(sK5),unordered_pair(sK5,sK6))) ) ),
    introduced(choice_axiom,[]) ).

fof(f52,plain,
    ( sK3 != sK5
    & equal_set(unordered_pair(singleton(sK3),unordered_pair(sK3,sK4)),unordered_pair(singleton(sK5),unordered_pair(sK5,sK6))) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK3,sK4,sK5,sK6])],[f28,f51]) ).

fof(f53,plain,
    ! [X3,X0,X1] :
      ( member(X3,X1)
      | ~ member(X3,X0)
      | ~ subset(X0,X1) ),
    inference(cnf_transformation,[],[f32]) ).

fof(f56,plain,
    ! [X0,X1] :
      ( subset(X0,X1)
      | ~ equal_set(X0,X1) ),
    inference(cnf_transformation,[],[f26]) ).

fof(f57,plain,
    ! [X0,X1] :
      ( subset(X1,X0)
      | ~ equal_set(X0,X1) ),
    inference(cnf_transformation,[],[f26]) ).

fof(f70,plain,
    ! [X0,X1] :
      ( X0 = X1
      | ~ member(X0,singleton(X1)) ),
    inference(cnf_transformation,[],[f40]) ).

fof(f71,plain,
    ! [X0,X1] :
      ( member(X0,singleton(X1))
      | X0 != X1 ),
    inference(cnf_transformation,[],[f40]) ).

fof(f72,plain,
    ! [X2,X0,X1] :
      ( X0 = X2
      | X0 = X1
      | ~ member(X0,unordered_pair(X1,X2)) ),
    inference(cnf_transformation,[],[f42]) ).

fof(f73,plain,
    ! [X2,X0,X1] :
      ( member(X0,unordered_pair(X1,X2))
      | X0 != X1 ),
    inference(cnf_transformation,[],[f42]) ).

fof(f81,plain,
    equal_set(unordered_pair(singleton(sK3),unordered_pair(sK3,sK4)),unordered_pair(singleton(sK5),unordered_pair(sK5,sK6))),
    inference(cnf_transformation,[],[f52]) ).

fof(f82,plain,
    sK3 != sK5,
    inference(cnf_transformation,[],[f52]) ).

fof(f83,plain,
    ! [X1] : member(X1,singleton(X1)),
    inference(equality_resolution,[],[f71]) ).

fof(f85,plain,
    ! [X2,X1] : member(X1,unordered_pair(X1,X2)),
    inference(equality_resolution,[],[f73]) ).

cnf(c_51,plain,
    ( ~ subset(X0,X1)
    | ~ member(X2,X0)
    | member(X2,X1) ),
    inference(cnf_transformation,[],[f53]) ).

cnf(c_52,plain,
    ( ~ equal_set(X0,X1)
    | subset(X1,X0) ),
    inference(cnf_transformation,[],[f57]) ).

cnf(c_53,plain,
    ( ~ equal_set(X0,X1)
    | subset(X0,X1) ),
    inference(cnf_transformation,[],[f56]) ).

cnf(c_66,plain,
    member(X0,singleton(X0)),
    inference(cnf_transformation,[],[f83]) ).

cnf(c_67,plain,
    ( ~ member(X0,singleton(X1))
    | X0 = X1 ),
    inference(cnf_transformation,[],[f70]) ).

cnf(c_69,plain,
    member(X0,unordered_pair(X0,X1)),
    inference(cnf_transformation,[],[f85]) ).

cnf(c_70,plain,
    ( ~ member(X0,unordered_pair(X1,X2))
    | X0 = X1
    | X0 = X2 ),
    inference(cnf_transformation,[],[f72]) ).

cnf(c_77,negated_conjecture,
    sK3 != sK5,
    inference(cnf_transformation,[],[f82]) ).

cnf(c_78,negated_conjecture,
    equal_set(unordered_pair(singleton(sK3),unordered_pair(sK3,sK4)),unordered_pair(singleton(sK5),unordered_pair(sK5,sK6))),
    inference(cnf_transformation,[],[f81]) ).

cnf(c_79,plain,
    member(sK3,singleton(sK3)),
    inference(instantiation,[status(thm)],[c_66]) ).

cnf(c_87,plain,
    ( ~ member(sK3,singleton(sK3))
    | sK3 = sK3 ),
    inference(instantiation,[status(thm)],[c_67]) ).

cnf(c_110,plain,
    ( subset(X0,X1)
    | ~ equal_set(X0,X1) ),
    inference(prop_impl_just,[status(thm)],[c_53]) ).

cnf(c_111,plain,
    ( ~ equal_set(X0,X1)
    | subset(X0,X1) ),
    inference(renaming,[status(thm)],[c_110]) ).

cnf(c_114,plain,
    ( ~ equal_set(X0,X1)
    | subset(X1,X0) ),
    inference(prop_impl_just,[status(thm)],[c_52]) ).

cnf(c_444,plain,
    ( unordered_pair(singleton(sK3),unordered_pair(sK3,sK4)) != X0
    | unordered_pair(singleton(sK5),unordered_pair(sK5,sK6)) != X1
    | subset(X0,X1) ),
    inference(resolution_lifted,[status(thm)],[c_111,c_78]) ).

cnf(c_445,plain,
    subset(unordered_pair(singleton(sK3),unordered_pair(sK3,sK4)),unordered_pair(singleton(sK5),unordered_pair(sK5,sK6))),
    inference(unflattening,[status(thm)],[c_444]) ).

cnf(c_449,plain,
    ( unordered_pair(singleton(sK3),unordered_pair(sK3,sK4)) != X0
    | unordered_pair(singleton(sK5),unordered_pair(sK5,sK6)) != X1
    | subset(X1,X0) ),
    inference(resolution_lifted,[status(thm)],[c_114,c_78]) ).

cnf(c_450,plain,
    subset(unordered_pair(singleton(sK5),unordered_pair(sK5,sK6)),unordered_pair(singleton(sK3),unordered_pair(sK3,sK4))),
    inference(unflattening,[status(thm)],[c_449]) ).

cnf(c_975,plain,
    ( X0 != X1
    | X2 != X1
    | X2 = X0 ),
    theory(equality) ).

cnf(c_1677,plain,
    ( ~ subset(unordered_pair(X0,X1),X2)
    | member(X0,X2) ),
    inference(superposition,[status(thm)],[c_69,c_51]) ).

cnf(c_1717,plain,
    ( sK3 != X0
    | sK5 != X0
    | sK3 = sK5 ),
    inference(instantiation,[status(thm)],[c_975]) ).

cnf(c_1718,plain,
    ( sK3 != sK3
    | sK5 != sK3
    | sK3 = sK5 ),
    inference(instantiation,[status(thm)],[c_1717]) ).

cnf(c_2270,plain,
    member(singleton(sK3),unordered_pair(singleton(sK5),unordered_pair(sK5,sK6))),
    inference(superposition,[status(thm)],[c_445,c_1677]) ).

cnf(c_2423,plain,
    ( ~ member(sK5,singleton(X0))
    | sK5 = X0 ),
    inference(instantiation,[status(thm)],[c_67]) ).

cnf(c_2424,plain,
    ( ~ member(sK5,singleton(sK3))
    | sK5 = sK3 ),
    inference(instantiation,[status(thm)],[c_2423]) ).

cnf(c_2481,plain,
    ( unordered_pair(sK5,sK6) = singleton(sK3)
    | singleton(sK3) = singleton(sK5) ),
    inference(superposition,[status(thm)],[c_2270,c_70]) ).

cnf(c_2625,plain,
    ( singleton(sK3) = singleton(sK5)
    | member(sK5,singleton(sK3)) ),
    inference(superposition,[status(thm)],[c_2481,c_69]) ).

cnf(c_2635,plain,
    ( singleton(sK3) = singleton(sK5)
    | subset(unordered_pair(singleton(sK5),singleton(sK3)),unordered_pair(singleton(sK3),unordered_pair(sK3,sK4))) ),
    inference(superposition,[status(thm)],[c_2481,c_450]) ).

cnf(c_2920,plain,
    singleton(sK3) = singleton(sK5),
    inference(global_subsumption_just,[status(thm)],[c_2635,c_79,c_77,c_87,c_1718,c_2424,c_2625]) ).

cnf(c_2953,plain,
    member(sK5,singleton(sK3)),
    inference(superposition,[status(thm)],[c_2920,c_66]) ).

cnf(c_2963,plain,
    $false,
    inference(prop_impl_just,[status(thm)],[c_2953,c_2424,c_1718,c_87,c_77,c_79]) ).


%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.12  % Problem  : SET016+4 : TPTP v8.1.2. Released v2.2.0.
% 0.00/0.13  % Command  : run_iprover %s %d THM
% 0.16/0.34  % Computer : n016.cluster.edu
% 0.16/0.34  % Model    : x86_64 x86_64
% 0.16/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.16/0.34  % Memory   : 8042.1875MB
% 0.16/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.16/0.34  % CPULimit : 300
% 0.16/0.34  % WCLimit  : 300
% 0.16/0.34  % DateTime : Sat Aug 26 11:42:27 EDT 2023
% 0.16/0.34  % 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
% 3.55/1.17  % SZS status Started for theBenchmark.p
% 3.55/1.17  % SZS status Theorem for theBenchmark.p
% 3.55/1.17  
% 3.55/1.17  %---------------- iProver v3.8 (pre SMT-COMP 2023/CASC 2023) ----------------%
% 3.55/1.17  
% 3.55/1.17  ------  iProver source info
% 3.55/1.17  
% 3.55/1.17  git: date: 2023-05-31 18:12:56 +0000
% 3.55/1.17  git: sha1: 8abddc1f627fd3ce0bcb8b4cbf113b3cc443d7b6
% 3.55/1.17  git: non_committed_changes: false
% 3.55/1.17  git: last_make_outside_of_git: false
% 3.55/1.17  
% 3.55/1.17  ------ Parsing...
% 3.55/1.17  ------ Clausification by vclausify_rel  & Parsing by iProver...
% 3.55/1.17  
% 3.55/1.17  ------ Preprocessing... sup_sim: 0  sf_s  rm: 1 0s  sf_e  pe_s  pe:1:0s pe_e  sup_sim: 0  sf_s  rm: 2 0s  sf_e  pe_s  pe_e 
% 3.55/1.17  
% 3.55/1.17  ------ Preprocessing... gs_s  sp: 0 0s  gs_e  snvd_s sp: 0 0s snvd_e 
% 3.55/1.17  
% 3.55/1.17  ------ Preprocessing... sf_s  rm: 1 0s  sf_e  sf_s  rm: 0 0s  sf_e 
% 3.55/1.17  ------ Proving...
% 3.55/1.17  ------ Problem Properties 
% 3.55/1.17  
% 3.55/1.17  
% 3.55/1.17  clauses                                 29
% 3.55/1.17  conjectures                             1
% 3.55/1.17  EPR                                     3
% 3.55/1.17  Horn                                    24
% 3.55/1.17  unary                                   7
% 3.55/1.17  binary                                  15
% 3.55/1.17  lits                                    58
% 3.55/1.17  lits eq                                 4
% 3.55/1.17  fd_pure                                 0
% 3.55/1.17  fd_pseudo                               0
% 3.55/1.17  fd_cond                                 0
% 3.55/1.17  fd_pseudo_cond                          2
% 3.55/1.17  AC symbols                              0
% 3.55/1.17  
% 3.55/1.17  ------ Schedule dynamic 5 is on 
% 3.55/1.17  
% 3.55/1.17  ------ Input Options "--resolution_flag false --inst_lit_sel_side none" Time Limit: 10.
% 3.55/1.17  
% 3.55/1.17  
% 3.55/1.17  ------ 
% 3.55/1.17  Current options:
% 3.55/1.17  ------ 
% 3.55/1.17  
% 3.55/1.17  
% 3.55/1.17  
% 3.55/1.17  
% 3.55/1.17  ------ Proving...
% 3.55/1.17  
% 3.55/1.17  
% 3.55/1.17  % SZS status Theorem for theBenchmark.p
% 3.55/1.17  
% 3.55/1.17  % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 3.55/1.17  
% 3.55/1.18  
%------------------------------------------------------------------------------