TSTP Solution File: SYN075+1 by iProver---3.9

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : iProver---3.9
% Problem  : SYN075+1 : TPTP v8.2.0. Released v2.0.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run_iprover %s %d THM

% Computer : n018.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 : Mon Jun 24 19:37:16 EDT 2024

% Result   : Theorem 1.95s 1.17s
% Output   : CNFRefutation 1.95s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   18
%            Number of leaves      :    7
% Syntax   : Number of formulae    :   48 (   5 unt;   0 def)
%            Number of atoms       :  192 ( 116 equ)
%            Maximal formula atoms :   20 (   4 avg)
%            Number of connectives :  236 (  92   ~; 101   |;  30   &)
%                                         (   8 <=>;   4  =>;   0  <=;   1 <~>)
%            Maximal formula depth :   11 (   5 avg)
%            Maximal term depth    :    2 (   1 avg)
%            Number of predicates  :    3 (   1 usr;   1 prp; 0-2 aty)
%            Number of functors    :    5 (   5 usr;   2 con; 0-2 aty)
%            Number of variables   :  110 (   2 sgn  53   !;  29   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f1,axiom,
    ? [X0,X1] :
    ! [X2,X3] :
      ( big_f(X2,X3)
    <=> ( X1 = X3
        & X0 = X2 ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',pel52_1) ).

fof(f2,conjecture,
    ? [X1] :
    ! [X3] :
      ( ? [X0] :
        ! [X2] :
          ( big_f(X2,X3)
        <=> X0 = X2 )
    <=> X1 = X3 ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',pel52) ).

fof(f3,negated_conjecture,
    ~ ? [X1] :
      ! [X3] :
        ( ? [X0] :
          ! [X2] :
            ( big_f(X2,X3)
          <=> X0 = X2 )
      <=> X1 = X3 ),
    inference(negated_conjecture,[],[f2]) ).

fof(f4,plain,
    ~ ? [X0] :
      ! [X1] :
        ( ? [X2] :
          ! [X3] :
            ( big_f(X3,X1)
          <=> X2 = X3 )
      <=> X0 = X1 ),
    inference(rectify,[],[f3]) ).

fof(f5,plain,
    ! [X0] :
    ? [X1] :
      ( ? [X2] :
        ! [X3] :
          ( big_f(X3,X1)
        <=> X2 = X3 )
    <~> X0 = X1 ),
    inference(ennf_transformation,[],[f4]) ).

fof(f6,plain,
    ? [X0,X1] :
    ! [X2,X3] :
      ( ( big_f(X2,X3)
        | X1 != X3
        | X0 != X2 )
      & ( ( X1 = X3
          & X0 = X2 )
        | ~ big_f(X2,X3) ) ),
    inference(nnf_transformation,[],[f1]) ).

fof(f7,plain,
    ? [X0,X1] :
    ! [X2,X3] :
      ( ( big_f(X2,X3)
        | X1 != X3
        | X0 != X2 )
      & ( ( X1 = X3
          & X0 = X2 )
        | ~ big_f(X2,X3) ) ),
    inference(flattening,[],[f6]) ).

fof(f8,plain,
    ( ? [X0,X1] :
      ! [X2,X3] :
        ( ( big_f(X2,X3)
          | X1 != X3
          | X0 != X2 )
        & ( ( X1 = X3
            & X0 = X2 )
          | ~ big_f(X2,X3) ) )
   => ! [X3,X2] :
        ( ( big_f(X2,X3)
          | sK1 != X3
          | sK0 != X2 )
        & ( ( sK1 = X3
            & sK0 = X2 )
          | ~ big_f(X2,X3) ) ) ),
    introduced(choice_axiom,[]) ).

fof(f9,plain,
    ! [X2,X3] :
      ( ( big_f(X2,X3)
        | sK1 != X3
        | sK0 != X2 )
      & ( ( sK1 = X3
          & sK0 = X2 )
        | ~ big_f(X2,X3) ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK0,sK1])],[f7,f8]) ).

fof(f10,plain,
    ! [X0] :
    ? [X1] :
      ( ( X0 != X1
        | ! [X2] :
          ? [X3] :
            ( ( X2 != X3
              | ~ big_f(X3,X1) )
            & ( X2 = X3
              | big_f(X3,X1) ) ) )
      & ( X0 = X1
        | ? [X2] :
          ! [X3] :
            ( ( big_f(X3,X1)
              | X2 != X3 )
            & ( X2 = X3
              | ~ big_f(X3,X1) ) ) ) ),
    inference(nnf_transformation,[],[f5]) ).

fof(f11,plain,
    ! [X0] :
    ? [X1] :
      ( ( X0 != X1
        | ! [X2] :
          ? [X3] :
            ( ( X2 != X3
              | ~ big_f(X3,X1) )
            & ( X2 = X3
              | big_f(X3,X1) ) ) )
      & ( X0 = X1
        | ? [X4] :
          ! [X5] :
            ( ( big_f(X5,X1)
              | X4 != X5 )
            & ( X4 = X5
              | ~ big_f(X5,X1) ) ) ) ),
    inference(rectify,[],[f10]) ).

fof(f12,plain,
    ! [X0] :
      ( ? [X1] :
          ( ( X0 != X1
            | ! [X2] :
              ? [X3] :
                ( ( X2 != X3
                  | ~ big_f(X3,X1) )
                & ( X2 = X3
                  | big_f(X3,X1) ) ) )
          & ( X0 = X1
            | ? [X4] :
              ! [X5] :
                ( ( big_f(X5,X1)
                  | X4 != X5 )
                & ( X4 = X5
                  | ~ big_f(X5,X1) ) ) ) )
     => ( ( sK2(X0) != X0
          | ! [X2] :
            ? [X3] :
              ( ( X2 != X3
                | ~ big_f(X3,sK2(X0)) )
              & ( X2 = X3
                | big_f(X3,sK2(X0)) ) ) )
        & ( sK2(X0) = X0
          | ? [X4] :
            ! [X5] :
              ( ( big_f(X5,sK2(X0))
                | X4 != X5 )
              & ( X4 = X5
                | ~ big_f(X5,sK2(X0)) ) ) ) ) ),
    introduced(choice_axiom,[]) ).

fof(f13,plain,
    ! [X0,X2] :
      ( ? [X3] :
          ( ( X2 != X3
            | ~ big_f(X3,sK2(X0)) )
          & ( X2 = X3
            | big_f(X3,sK2(X0)) ) )
     => ( ( sK3(X0,X2) != X2
          | ~ big_f(sK3(X0,X2),sK2(X0)) )
        & ( sK3(X0,X2) = X2
          | big_f(sK3(X0,X2),sK2(X0)) ) ) ),
    introduced(choice_axiom,[]) ).

fof(f14,plain,
    ! [X0] :
      ( ? [X4] :
        ! [X5] :
          ( ( big_f(X5,sK2(X0))
            | X4 != X5 )
          & ( X4 = X5
            | ~ big_f(X5,sK2(X0)) ) )
     => ! [X5] :
          ( ( big_f(X5,sK2(X0))
            | sK4(X0) != X5 )
          & ( sK4(X0) = X5
            | ~ big_f(X5,sK2(X0)) ) ) ),
    introduced(choice_axiom,[]) ).

fof(f15,plain,
    ! [X0] :
      ( ( sK2(X0) != X0
        | ! [X2] :
            ( ( sK3(X0,X2) != X2
              | ~ big_f(sK3(X0,X2),sK2(X0)) )
            & ( sK3(X0,X2) = X2
              | big_f(sK3(X0,X2),sK2(X0)) ) ) )
      & ( sK2(X0) = X0
        | ! [X5] :
            ( ( big_f(X5,sK2(X0))
              | sK4(X0) != X5 )
            & ( sK4(X0) = X5
              | ~ big_f(X5,sK2(X0)) ) ) ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK2,sK3,sK4])],[f11,f14,f13,f12]) ).

fof(f16,plain,
    ! [X2,X3] :
      ( sK0 = X2
      | ~ big_f(X2,X3) ),
    inference(cnf_transformation,[],[f9]) ).

fof(f17,plain,
    ! [X2,X3] :
      ( sK1 = X3
      | ~ big_f(X2,X3) ),
    inference(cnf_transformation,[],[f9]) ).

fof(f18,plain,
    ! [X2,X3] :
      ( big_f(X2,X3)
      | sK1 != X3
      | sK0 != X2 ),
    inference(cnf_transformation,[],[f9]) ).

fof(f20,plain,
    ! [X0,X5] :
      ( sK2(X0) = X0
      | big_f(X5,sK2(X0))
      | sK4(X0) != X5 ),
    inference(cnf_transformation,[],[f15]) ).

fof(f21,plain,
    ! [X2,X0] :
      ( sK2(X0) != X0
      | sK3(X0,X2) = X2
      | big_f(sK3(X0,X2),sK2(X0)) ),
    inference(cnf_transformation,[],[f15]) ).

fof(f22,plain,
    ! [X2,X0] :
      ( sK2(X0) != X0
      | sK3(X0,X2) != X2
      | ~ big_f(sK3(X0,X2),sK2(X0)) ),
    inference(cnf_transformation,[],[f15]) ).

fof(f23,plain,
    ! [X2] :
      ( big_f(X2,sK1)
      | sK0 != X2 ),
    inference(equality_resolution,[],[f18]) ).

fof(f24,plain,
    big_f(sK0,sK1),
    inference(equality_resolution,[],[f23]) ).

fof(f25,plain,
    ! [X0] :
      ( sK2(X0) = X0
      | big_f(sK4(X0),sK2(X0)) ),
    inference(equality_resolution,[],[f20]) ).

cnf(c_49,plain,
    big_f(sK0,sK1),
    inference(cnf_transformation,[],[f24]) ).

cnf(c_50,plain,
    ( ~ big_f(X0,X1)
    | X1 = sK1 ),
    inference(cnf_transformation,[],[f17]) ).

cnf(c_51,plain,
    ( ~ big_f(X0,X1)
    | X0 = sK0 ),
    inference(cnf_transformation,[],[f16]) ).

cnf(c_52,negated_conjecture,
    ( sK3(X0,X1) != X1
    | sK2(X0) != X0
    | ~ big_f(sK3(X0,X1),sK2(X0)) ),
    inference(cnf_transformation,[],[f22]) ).

cnf(c_53,negated_conjecture,
    ( sK2(X0) != X0
    | sK3(X0,X1) = X1
    | big_f(sK3(X0,X1),sK2(X0)) ),
    inference(cnf_transformation,[],[f21]) ).

cnf(c_54,negated_conjecture,
    ( sK2(X0) = X0
    | big_f(sK4(X0),sK2(X0)) ),
    inference(cnf_transformation,[],[f25]) ).

cnf(c_300,negated_conjecture,
    ( sK2(X0) = X0
    | big_f(sK4(X0),sK2(X0)) ),
    inference(demodulation,[status(thm)],[c_54]) ).

cnf(c_301,negated_conjecture,
    ( sK2(X0) != X0
    | sK3(X0,X1) = X1
    | big_f(sK3(X0,X1),sK2(X0)) ),
    inference(demodulation,[status(thm)],[c_53]) ).

cnf(c_302,negated_conjecture,
    ( sK3(X0,X1) != X1
    | sK2(X0) != X0
    | ~ big_f(sK3(X0,X1),sK2(X0)) ),
    inference(demodulation,[status(thm)],[c_52]) ).

cnf(c_306,plain,
    ( X0 != X1
    | X2 != X3
    | ~ big_f(X1,X3)
    | big_f(X0,X2) ),
    theory(equality) ).

cnf(c_433,plain,
    ( sK2(X0) = X0
    | sK2(X0) = sK1 ),
    inference(superposition,[status(thm)],[c_300,c_50]) ).

cnf(c_450,plain,
    ( X0 != sK1
    | sK2(X0) = sK1 ),
    inference(equality_factoring,[status(thm)],[c_433]) ).

cnf(c_485,plain,
    sK2(sK1) = sK1,
    inference(equality_resolution,[status(thm)],[c_450]) ).

cnf(c_526,plain,
    ( X0 != sK0
    | X1 != sK1
    | ~ big_f(sK0,sK1)
    | big_f(X0,X1) ),
    inference(instantiation,[status(thm)],[c_306]) ).

cnf(c_529,plain,
    ( sK3(sK1,X0) = X0
    | big_f(sK3(sK1,X0),sK2(sK1)) ),
    inference(superposition,[status(thm)],[c_485,c_301]) ).

cnf(c_532,plain,
    ( sK3(sK1,X0) = X0
    | big_f(sK3(sK1,X0),sK1) ),
    inference(light_normalisation,[status(thm)],[c_529,c_485]) ).

cnf(c_540,plain,
    ( sK2(sK1) != sK1
    | X0 != sK0
    | ~ big_f(sK0,sK1)
    | big_f(X0,sK2(sK1)) ),
    inference(instantiation,[status(thm)],[c_526]) ).

cnf(c_558,plain,
    ( sK3(sK1,X0) = X0
    | sK3(sK1,X0) = sK0 ),
    inference(superposition,[status(thm)],[c_532,c_51]) ).

cnf(c_566,plain,
    sK3(sK1,sK0) = sK0,
    inference(instantiation,[status(thm)],[c_558]) ).

cnf(c_682,plain,
    ( sK3(sK1,X0) != sK0
    | sK2(sK1) != sK1
    | ~ big_f(sK0,sK1)
    | big_f(sK3(sK1,X0),sK2(sK1)) ),
    inference(instantiation,[status(thm)],[c_540]) ).

cnf(c_683,plain,
    ( sK3(sK1,X0) != X0
    | sK2(sK1) != sK1
    | ~ big_f(sK3(sK1,X0),sK2(sK1)) ),
    inference(instantiation,[status(thm)],[c_302]) ).

cnf(c_684,plain,
    ( sK3(sK1,sK0) != sK0
    | sK2(sK1) != sK1
    | ~ big_f(sK0,sK1)
    | big_f(sK3(sK1,sK0),sK2(sK1)) ),
    inference(instantiation,[status(thm)],[c_682]) ).

cnf(c_685,plain,
    ( sK3(sK1,sK0) != sK0
    | sK2(sK1) != sK1
    | ~ big_f(sK3(sK1,sK0),sK2(sK1)) ),
    inference(instantiation,[status(thm)],[c_683]) ).

cnf(c_686,plain,
    $false,
    inference(prop_impl_just,[status(thm)],[c_685,c_684,c_566,c_485,c_49]) ).


%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.12  % Problem  : SYN075+1 : TPTP v8.2.0. Released v2.0.0.
% 0.03/0.12  % Command  : run_iprover %s %d THM
% 0.12/0.33  % Computer : n018.cluster.edu
% 0.12/0.33  % Model    : x86_64 x86_64
% 0.12/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.33  % Memory   : 8042.1875MB
% 0.12/0.33  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.33  % CPULimit : 300
% 0.12/0.33  % WCLimit  : 300
% 0.12/0.33  % DateTime : Sun Jun 23 23:17:54 EDT 2024
% 0.12/0.33  % CPUTime  : 
% 0.19/0.47  Running first-order theorem proving
% 0.19/0.47  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
% 1.95/1.17  % SZS status Started for theBenchmark.p
% 1.95/1.17  % SZS status Theorem for theBenchmark.p
% 1.95/1.17  
% 1.95/1.17  %---------------- iProver v3.9 (pre CASC 2024/SMT-COMP 2024) ----------------%
% 1.95/1.17  
% 1.95/1.17  ------  iProver source info
% 1.95/1.17  
% 1.95/1.17  git: date: 2024-06-12 09:56:46 +0000
% 1.95/1.17  git: sha1: 4869ab62f0a3398f9d3a35e6db7918ebd3847e49
% 1.95/1.17  git: non_committed_changes: false
% 1.95/1.17  
% 1.95/1.17  ------ Parsing...
% 1.95/1.17  ------ Clausification by vclausify_rel  & Parsing by iProver...
% 1.95/1.17  
% 1.95/1.17  ------ Preprocessing... sup_sim: 0  sf_s  rm: 1 0s  sf_e  pe_s  pe_e 
% 1.95/1.17  
% 1.95/1.17  ------ Preprocessing... gs_s  sp: 0 0s  gs_e  snvd_s sp: 0 0s snvd_e 
% 1.95/1.17  
% 1.95/1.17  ------ Preprocessing... sf_s  rm: 1 0s  sf_e  sf_s  rm: 0 0s  sf_e 
% 1.95/1.17  ------ Proving...
% 1.95/1.17  ------ Problem Properties 
% 1.95/1.17  
% 1.95/1.17  
% 1.95/1.17  clauses                                 7
% 1.95/1.17  conjectures                             4
% 1.95/1.17  EPR                                     3
% 1.95/1.17  Horn                                    4
% 1.95/1.17  unary                                   1
% 1.95/1.17  binary                                  3
% 1.95/1.17  lits                                    16
% 1.95/1.17  lits eq                                 9
% 1.95/1.17  fd_pure                                 0
% 1.95/1.17  fd_pseudo                               0
% 1.95/1.17  fd_cond                                 2
% 1.95/1.17  fd_pseudo_cond                          0
% 1.95/1.17  AC symbols                              0
% 1.95/1.17  
% 1.95/1.17  ------ Schedule dynamic 5 is on 
% 1.95/1.17  
% 1.95/1.17  ------ Input Options "--resolution_flag false --inst_lit_sel_side none" Time Limit: 10.
% 1.95/1.17  
% 1.95/1.17  
% 1.95/1.17  ------ 
% 1.95/1.17  Current options:
% 1.95/1.17  ------ 
% 1.95/1.17  
% 1.95/1.17  
% 1.95/1.17  
% 1.95/1.17  
% 1.95/1.17  ------ Proving...
% 1.95/1.17  
% 1.95/1.17  
% 1.95/1.17  % SZS status Theorem for theBenchmark.p
% 1.95/1.17  
% 1.95/1.17  % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 1.95/1.17  
% 1.95/1.17  
%------------------------------------------------------------------------------