TSTP Solution File: SET624+3 by iProver---3.8

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : iProver---3.8
% Problem  : SET624+3 : TPTP v8.1.2. Released v2.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run_iprover %s %d THM

% Computer : n028.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 15:08:45 EDT 2023

% Result   : Theorem 3.76s 1.17s
% Output   : CNFRefutation 3.76s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   21
%            Number of leaves      :    7
% Syntax   : Number of formulae    :   69 (   8 unt;   0 def)
%            Number of atoms       :  199 (   3 equ)
%            Maximal formula atoms :   12 (   2 avg)
%            Number of connectives :  228 (  98   ~;  99   |;  23   &)
%                                         (   4 <=>;   3  =>;   0  <=;   1 <~>)
%            Maximal formula depth :    9 (   4 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :    4 (   2 usr;   1 prp; 0-2 aty)
%            Number of functors    :    5 (   5 usr;   3 con; 0-2 aty)
%            Number of variables   :  106 (   4 sgn;  51   !;  16   ?)

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

fof(f2,axiom,
    ! [X0,X1] :
      ( intersect(X0,X1)
    <=> ? [X2] :
          ( member(X2,X1)
          & member(X2,X0) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',intersect_defn) ).

fof(f3,axiom,
    ! [X0,X1] : union(X0,X1) = union(X1,X0),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',commutativity_of_union) ).

fof(f4,axiom,
    ! [X0,X1] :
      ( intersect(X0,X1)
     => intersect(X1,X0) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',symmetry_of_intersect) ).

fof(f6,conjecture,
    ! [X0,X1,X2] :
      ( intersect(X0,union(X1,X2))
    <=> ( intersect(X0,X2)
        | intersect(X0,X1) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_intersect_with_union) ).

fof(f7,negated_conjecture,
    ~ ! [X0,X1,X2] :
        ( intersect(X0,union(X1,X2))
      <=> ( intersect(X0,X2)
          | intersect(X0,X1) ) ),
    inference(negated_conjecture,[],[f6]) ).

fof(f8,plain,
    ! [X0,X1] :
      ( intersect(X1,X0)
      | ~ intersect(X0,X1) ),
    inference(ennf_transformation,[],[f4]) ).

fof(f9,plain,
    ? [X0,X1,X2] :
      ( intersect(X0,union(X1,X2))
    <~> ( intersect(X0,X2)
        | intersect(X0,X1) ) ),
    inference(ennf_transformation,[],[f7]) ).

fof(f10,plain,
    ! [X0,X1,X2] :
      ( ( member(X2,union(X0,X1))
        | ( ~ member(X2,X1)
          & ~ member(X2,X0) ) )
      & ( member(X2,X1)
        | member(X2,X0)
        | ~ member(X2,union(X0,X1)) ) ),
    inference(nnf_transformation,[],[f1]) ).

fof(f11,plain,
    ! [X0,X1,X2] :
      ( ( member(X2,union(X0,X1))
        | ( ~ member(X2,X1)
          & ~ member(X2,X0) ) )
      & ( member(X2,X1)
        | member(X2,X0)
        | ~ member(X2,union(X0,X1)) ) ),
    inference(flattening,[],[f10]) ).

fof(f12,plain,
    ! [X0,X1] :
      ( ( intersect(X0,X1)
        | ! [X2] :
            ( ~ member(X2,X1)
            | ~ member(X2,X0) ) )
      & ( ? [X2] :
            ( member(X2,X1)
            & member(X2,X0) )
        | ~ intersect(X0,X1) ) ),
    inference(nnf_transformation,[],[f2]) ).

fof(f13,plain,
    ! [X0,X1] :
      ( ( intersect(X0,X1)
        | ! [X2] :
            ( ~ member(X2,X1)
            | ~ member(X2,X0) ) )
      & ( ? [X3] :
            ( member(X3,X1)
            & member(X3,X0) )
        | ~ intersect(X0,X1) ) ),
    inference(rectify,[],[f12]) ).

fof(f14,plain,
    ! [X0,X1] :
      ( ? [X3] :
          ( member(X3,X1)
          & member(X3,X0) )
     => ( member(sK0(X0,X1),X1)
        & member(sK0(X0,X1),X0) ) ),
    introduced(choice_axiom,[]) ).

fof(f15,plain,
    ! [X0,X1] :
      ( ( intersect(X0,X1)
        | ! [X2] :
            ( ~ member(X2,X1)
            | ~ member(X2,X0) ) )
      & ( ( member(sK0(X0,X1),X1)
          & member(sK0(X0,X1),X0) )
        | ~ intersect(X0,X1) ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK0])],[f13,f14]) ).

fof(f20,plain,
    ? [X0,X1,X2] :
      ( ( ( ~ intersect(X0,X2)
          & ~ intersect(X0,X1) )
        | ~ intersect(X0,union(X1,X2)) )
      & ( intersect(X0,X2)
        | intersect(X0,X1)
        | intersect(X0,union(X1,X2)) ) ),
    inference(nnf_transformation,[],[f9]) ).

fof(f21,plain,
    ? [X0,X1,X2] :
      ( ( ( ~ intersect(X0,X2)
          & ~ intersect(X0,X1) )
        | ~ intersect(X0,union(X1,X2)) )
      & ( intersect(X0,X2)
        | intersect(X0,X1)
        | intersect(X0,union(X1,X2)) ) ),
    inference(flattening,[],[f20]) ).

fof(f22,plain,
    ( ? [X0,X1,X2] :
        ( ( ( ~ intersect(X0,X2)
            & ~ intersect(X0,X1) )
          | ~ intersect(X0,union(X1,X2)) )
        & ( intersect(X0,X2)
          | intersect(X0,X1)
          | intersect(X0,union(X1,X2)) ) )
   => ( ( ( ~ intersect(sK2,sK4)
          & ~ intersect(sK2,sK3) )
        | ~ intersect(sK2,union(sK3,sK4)) )
      & ( intersect(sK2,sK4)
        | intersect(sK2,sK3)
        | intersect(sK2,union(sK3,sK4)) ) ) ),
    introduced(choice_axiom,[]) ).

fof(f23,plain,
    ( ( ( ~ intersect(sK2,sK4)
        & ~ intersect(sK2,sK3) )
      | ~ intersect(sK2,union(sK3,sK4)) )
    & ( intersect(sK2,sK4)
      | intersect(sK2,sK3)
      | intersect(sK2,union(sK3,sK4)) ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK2,sK3,sK4])],[f21,f22]) ).

fof(f24,plain,
    ! [X2,X0,X1] :
      ( member(X2,X1)
      | member(X2,X0)
      | ~ member(X2,union(X0,X1)) ),
    inference(cnf_transformation,[],[f11]) ).

fof(f25,plain,
    ! [X2,X0,X1] :
      ( member(X2,union(X0,X1))
      | ~ member(X2,X0) ),
    inference(cnf_transformation,[],[f11]) ).

fof(f27,plain,
    ! [X0,X1] :
      ( member(sK0(X0,X1),X0)
      | ~ intersect(X0,X1) ),
    inference(cnf_transformation,[],[f15]) ).

fof(f28,plain,
    ! [X0,X1] :
      ( member(sK0(X0,X1),X1)
      | ~ intersect(X0,X1) ),
    inference(cnf_transformation,[],[f15]) ).

fof(f29,plain,
    ! [X2,X0,X1] :
      ( intersect(X0,X1)
      | ~ member(X2,X1)
      | ~ member(X2,X0) ),
    inference(cnf_transformation,[],[f15]) ).

fof(f30,plain,
    ! [X0,X1] : union(X0,X1) = union(X1,X0),
    inference(cnf_transformation,[],[f3]) ).

fof(f31,plain,
    ! [X0,X1] :
      ( intersect(X1,X0)
      | ~ intersect(X0,X1) ),
    inference(cnf_transformation,[],[f8]) ).

fof(f36,plain,
    ( intersect(sK2,sK4)
    | intersect(sK2,sK3)
    | intersect(sK2,union(sK3,sK4)) ),
    inference(cnf_transformation,[],[f23]) ).

fof(f37,plain,
    ( ~ intersect(sK2,sK3)
    | ~ intersect(sK2,union(sK3,sK4)) ),
    inference(cnf_transformation,[],[f23]) ).

fof(f38,plain,
    ( ~ intersect(sK2,sK4)
    | ~ intersect(sK2,union(sK3,sK4)) ),
    inference(cnf_transformation,[],[f23]) ).

cnf(c_50,plain,
    ( ~ member(X0,X1)
    | member(X0,union(X1,X2)) ),
    inference(cnf_transformation,[],[f25]) ).

cnf(c_51,plain,
    ( ~ member(X0,union(X1,X2))
    | member(X0,X1)
    | member(X0,X2) ),
    inference(cnf_transformation,[],[f24]) ).

cnf(c_52,plain,
    ( ~ member(X0,X1)
    | ~ member(X0,X2)
    | intersect(X1,X2) ),
    inference(cnf_transformation,[],[f29]) ).

cnf(c_53,plain,
    ( ~ intersect(X0,X1)
    | member(sK0(X0,X1),X1) ),
    inference(cnf_transformation,[],[f28]) ).

cnf(c_54,plain,
    ( ~ intersect(X0,X1)
    | member(sK0(X0,X1),X0) ),
    inference(cnf_transformation,[],[f27]) ).

cnf(c_55,plain,
    union(X0,X1) = union(X1,X0),
    inference(cnf_transformation,[],[f30]) ).

cnf(c_56,plain,
    ( ~ intersect(X0,X1)
    | intersect(X1,X0) ),
    inference(cnf_transformation,[],[f31]) ).

cnf(c_59,negated_conjecture,
    ( ~ intersect(sK2,union(sK3,sK4))
    | ~ intersect(sK2,sK4) ),
    inference(cnf_transformation,[],[f38]) ).

cnf(c_60,negated_conjecture,
    ( ~ intersect(sK2,union(sK3,sK4))
    | ~ intersect(sK2,sK3) ),
    inference(cnf_transformation,[],[f37]) ).

cnf(c_61,negated_conjecture,
    ( intersect(sK2,union(sK3,sK4))
    | intersect(sK2,sK4)
    | intersect(sK2,sK3) ),
    inference(cnf_transformation,[],[f36]) ).

cnf(c_355,plain,
    ( ~ member(X0,union(sK3,sK4))
    | ~ member(X0,sK2)
    | ~ intersect(sK2,sK3) ),
    inference(resolution,[status(thm)],[c_52,c_60]) ).

cnf(c_385,plain,
    ( ~ member(X0,union(sK3,sK4))
    | ~ member(X0,sK2)
    | ~ member(X1,sK2)
    | ~ member(X1,sK3) ),
    inference(resolution,[status(thm)],[c_355,c_52]) ).

cnf(c_397,plain,
    ( ~ intersect(sK2,union(sK3,sK4))
    | member(sK0(sK2,union(sK3,sK4)),union(sK3,sK4)) ),
    inference(instantiation,[status(thm)],[c_53]) ).

cnf(c_426,plain,
    ( ~ intersect(sK2,union(sK3,sK4))
    | member(sK0(sK2,union(sK3,sK4)),sK2) ),
    inference(instantiation,[status(thm)],[c_54]) ).

cnf(c_436,plain,
    ( intersect(sK2,union(sK4,sK3))
    | intersect(sK2,sK4)
    | intersect(sK2,sK3) ),
    inference(superposition,[status(thm)],[c_55,c_61]) ).

cnf(c_439,plain,
    ( ~ intersect(sK2,sK3)
    | member(sK0(sK2,sK3),sK2) ),
    inference(instantiation,[status(thm)],[c_54]) ).

cnf(c_454,plain,
    ( ~ member(X0,sK2)
    | ~ member(X0,sK3)
    | ~ member(X1,sK2)
    | ~ member(X1,sK3) ),
    inference(resolution,[status(thm)],[c_385,c_50]) ).

cnf(c_477,plain,
    ( ~ member(sK0(X0,X1),X2)
    | ~ intersect(X0,X1)
    | intersect(X2,X1) ),
    inference(superposition,[status(thm)],[c_53,c_52]) ).

cnf(c_482,plain,
    ( ~ intersect(sK2,sK4)
    | intersect(sK4,sK2) ),
    inference(instantiation,[status(thm)],[c_56]) ).

cnf(c_545,plain,
    ( ~ member(sK0(sK2,union(sK3,sK4)),union(sK3,sK4))
    | member(sK0(sK2,union(sK3,sK4)),sK4)
    | member(sK0(sK2,union(sK3,sK4)),sK3) ),
    inference(instantiation,[status(thm)],[c_51]) ).

cnf(c_557,plain,
    ( intersect(sK2,union(sK4,sK3))
    | intersect(sK2,sK4)
    | intersect(sK2,sK3) ),
    inference(superposition,[status(thm)],[c_55,c_61]) ).

cnf(c_558,plain,
    ( ~ intersect(sK2,union(sK4,sK3))
    | ~ intersect(sK2,sK3) ),
    inference(superposition,[status(thm)],[c_55,c_60]) ).

cnf(c_590,plain,
    ( ~ member(sK0(sK2,union(sK3,sK4)),X0)
    | ~ member(sK0(sK2,union(sK3,sK4)),sK2)
    | intersect(X0,sK2) ),
    inference(instantiation,[status(thm)],[c_52]) ).

cnf(c_684,plain,
    ( ~ member(X0,sK2)
    | ~ member(X0,sK3) ),
    inference(factoring,[status(thm)],[c_454]) ).

cnf(c_690,plain,
    ( ~ member(sK0(X0,sK3),sK2)
    | ~ intersect(X0,sK3) ),
    inference(resolution,[status(thm)],[c_684,c_53]) ).

cnf(c_691,plain,
    ( ~ member(sK0(sK2,sK3),sK2)
    | ~ intersect(sK2,sK3) ),
    inference(instantiation,[status(thm)],[c_690]) ).

cnf(c_714,plain,
    ( intersect(sK2,sK4)
    | intersect(sK2,union(sK4,sK3)) ),
    inference(global_subsumption_just,[status(thm)],[c_557,c_436,c_439,c_691]) ).

cnf(c_715,plain,
    ( intersect(sK2,union(sK4,sK3))
    | intersect(sK2,sK4) ),
    inference(renaming,[status(thm)],[c_714]) ).

cnf(c_718,plain,
    ( ~ intersect(sK2,sK3)
    | intersect(sK2,sK4) ),
    inference(superposition,[status(thm)],[c_715,c_558]) ).

cnf(c_724,plain,
    ~ intersect(sK2,sK3),
    inference(global_subsumption_just,[status(thm)],[c_718,c_439,c_691]) ).

cnf(c_800,plain,
    ( ~ intersect(sK3,sK2)
    | intersect(sK2,sK3) ),
    inference(instantiation,[status(thm)],[c_56]) ).

cnf(c_994,plain,
    ( ~ member(sK0(sK2,union(sK3,sK4)),X0)
    | ~ member(sK0(sK2,union(sK3,sK4)),sK4)
    | intersect(X0,sK4) ),
    inference(instantiation,[status(thm)],[c_52]) ).

cnf(c_995,plain,
    ( ~ member(sK0(sK2,union(sK3,sK4)),sK2)
    | ~ member(sK0(sK2,union(sK3,sK4)),sK4)
    | intersect(sK2,sK4) ),
    inference(instantiation,[status(thm)],[c_994]) ).

cnf(c_1522,plain,
    ( ~ member(sK0(sK2,union(sK3,sK4)),sK2)
    | ~ member(sK0(sK2,union(sK3,sK4)),sK3)
    | intersect(sK3,sK2) ),
    inference(instantiation,[status(thm)],[c_590]) ).

cnf(c_1641,negated_conjecture,
    ~ intersect(sK2,union(sK3,sK4)),
    inference(global_subsumption_just,[status(thm)],[c_59,c_59,c_397,c_426,c_545,c_724,c_800,c_995,c_1522]) ).

cnf(c_1649,plain,
    ~ intersect(sK2,union(sK4,sK3)),
    inference(superposition,[status(thm)],[c_55,c_1641]) ).

cnf(c_1661,plain,
    ( ~ member(sK0(X0,X1),X2)
    | ~ intersect(X0,X1)
    | intersect(union(X2,X3),X1) ),
    inference(superposition,[status(thm)],[c_50,c_477]) ).

cnf(c_1670,plain,
    ( ~ intersect(X0,X1)
    | intersect(union(X0,X2),X1) ),
    inference(superposition,[status(thm)],[c_54,c_1661]) ).

cnf(c_1826,plain,
    ( ~ intersect(X0,X1)
    | intersect(X1,union(X0,X2)) ),
    inference(superposition,[status(thm)],[c_1670,c_56]) ).

cnf(c_1882,plain,
    ~ intersect(sK4,sK2),
    inference(superposition,[status(thm)],[c_1826,c_1649]) ).

cnf(c_1883,plain,
    $false,
    inference(prop_impl_just,[status(thm)],[c_1882,c_1641,c_724,c_482,c_61]) ).


%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.13  % Problem  : SET624+3 : TPTP v8.1.2. Released v2.2.0.
% 0.00/0.14  % Command  : run_iprover %s %d THM
% 0.14/0.35  % Computer : n028.cluster.edu
% 0.14/0.35  % Model    : x86_64 x86_64
% 0.14/0.35  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/0.35  % Memory   : 8042.1875MB
% 0.14/0.35  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.14/0.35  % CPULimit : 300
% 0.14/0.35  % WCLimit  : 300
% 0.14/0.35  % DateTime : Sat Aug 26 14:13:52 EDT 2023
% 0.14/0.35  % 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
% 3.76/1.17  % SZS status Started for theBenchmark.p
% 3.76/1.17  % SZS status Theorem for theBenchmark.p
% 3.76/1.17  
% 3.76/1.17  %---------------- iProver v3.8 (pre SMT-COMP 2023/CASC 2023) ----------------%
% 3.76/1.17  
% 3.76/1.17  ------  iProver source info
% 3.76/1.17  
% 3.76/1.17  git: date: 2023-05-31 18:12:56 +0000
% 3.76/1.17  git: sha1: 8abddc1f627fd3ce0bcb8b4cbf113b3cc443d7b6
% 3.76/1.17  git: non_committed_changes: false
% 3.76/1.17  git: last_make_outside_of_git: false
% 3.76/1.17  
% 3.76/1.17  ------ Parsing...
% 3.76/1.17  ------ Clausification by vclausify_rel  & Parsing by iProver...
% 3.76/1.17  
% 3.76/1.17  ------ Preprocessing... sup_sim: 0  sf_s  rm: 1 0s  sf_e  pe_s  pe_e 
% 3.76/1.17  
% 3.76/1.17  ------ Preprocessing... gs_s  sp: 0 0s  gs_e  snvd_s sp: 0 0s snvd_e 
% 3.76/1.17  
% 3.76/1.17  ------ Preprocessing... sf_s  rm: 1 0s  sf_e  sf_s  rm: 0 0s  sf_e 
% 3.76/1.17  ------ Proving...
% 3.76/1.17  ------ Problem Properties 
% 3.76/1.17  
% 3.76/1.17  
% 3.76/1.17  clauses                                 13
% 3.76/1.17  conjectures                             3
% 3.76/1.17  EPR                                     2
% 3.76/1.17  Horn                                    10
% 3.76/1.17  unary                                   1
% 3.76/1.17  binary                                  7
% 3.76/1.17  lits                                    30
% 3.76/1.17  lits eq                                 3
% 3.76/1.17  fd_pure                                 0
% 3.76/1.17  fd_pseudo                               0
% 3.76/1.17  fd_cond                                 0
% 3.76/1.17  fd_pseudo_cond                          2
% 3.76/1.17  AC symbols                              0
% 3.76/1.17  
% 3.76/1.17  ------ Input Options Time Limit: Unbounded
% 3.76/1.17  
% 3.76/1.17  
% 3.76/1.17  ------ 
% 3.76/1.17  Current options:
% 3.76/1.17  ------ 
% 3.76/1.17  
% 3.76/1.17  
% 3.76/1.17  
% 3.76/1.17  
% 3.76/1.17  ------ Proving...
% 3.76/1.17  
% 3.76/1.17  
% 3.76/1.17  % SZS status Theorem for theBenchmark.p
% 3.76/1.17  
% 3.76/1.17  % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 3.76/1.17  
% 3.76/1.18  
%------------------------------------------------------------------------------