TSTP Solution File: SWC254+1 by iProver---3.8

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : iProver---3.8
% Problem  : SWC254+1 : TPTP v8.1.2. Released v2.4.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run_iprover %s %d THM

% Computer : n013.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 20:42:03 EDT 2023

% Result   : Theorem 3.60s 1.15s
% Output   : CNFRefutation 3.60s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   15
%            Number of leaves      :   10
% Syntax   : Number of formulae    :   53 (  11 unt;   0 def)
%            Number of atoms       :  275 (  81 equ)
%            Maximal formula atoms :   18 (   5 avg)
%            Number of connectives :  306 (  84   ~;  76   |; 124   &)
%                                         (   2 <=>;  20  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   20 (   6 avg)
%            Maximal term depth    :    4 (   1 avg)
%            Number of predicates  :    7 (   5 usr;   1 prp; 0-4 aty)
%            Number of functors    :   10 (  10 usr;   5 con; 0-2 aty)
%            Number of variables   :  128 (  14 sgn;  56   !;  47   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f4,axiom,
    ! [X0] :
      ( ssList(X0)
     => ( singletonP(X0)
      <=> ? [X1] :
            ( cons(X1,nil) = X0
            & ssItem(X1) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',ax4) ).

fof(f96,conjecture,
    ! [X0] :
      ( ssList(X0)
     => ! [X1] :
          ( ssList(X1)
         => ! [X2] :
              ( ssList(X2)
             => ! [X3] :
                  ( ssList(X3)
                 => ( ( ( neq(X3,nil)
                        | ~ neq(X1,nil) )
                      & ( singletonP(X0)
                        | ! [X4] :
                            ( ssItem(X4)
                           => ! [X5] :
                                ( ssList(X5)
                               => ( app(X5,cons(X4,nil)) != X3
                                  | cons(X4,nil) != X2 ) ) )
                        | ~ neq(X1,nil) ) )
                    | X0 != X2
                    | X1 != X3 ) ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',co1) ).

fof(f97,negated_conjecture,
    ~ ! [X0] :
        ( ssList(X0)
       => ! [X1] :
            ( ssList(X1)
           => ! [X2] :
                ( ssList(X2)
               => ! [X3] :
                    ( ssList(X3)
                   => ( ( ( neq(X3,nil)
                          | ~ neq(X1,nil) )
                        & ( singletonP(X0)
                          | ! [X4] :
                              ( ssItem(X4)
                             => ! [X5] :
                                  ( ssList(X5)
                                 => ( app(X5,cons(X4,nil)) != X3
                                    | cons(X4,nil) != X2 ) ) )
                          | ~ neq(X1,nil) ) )
                      | X0 != X2
                      | X1 != X3 ) ) ) ) ),
    inference(negated_conjecture,[],[f96]) ).

fof(f100,plain,
    ! [X0] :
      ( ( singletonP(X0)
      <=> ? [X1] :
            ( cons(X1,nil) = X0
            & ssItem(X1) ) )
      | ~ ssList(X0) ),
    inference(ennf_transformation,[],[f4]) ).

fof(f221,plain,
    ? [X0] :
      ( ? [X1] :
          ( ? [X2] :
              ( ? [X3] :
                  ( ( ( ~ neq(X3,nil)
                      & neq(X1,nil) )
                    | ( ~ singletonP(X0)
                      & ? [X4] :
                          ( ? [X5] :
                              ( app(X5,cons(X4,nil)) = X3
                              & cons(X4,nil) = X2
                              & ssList(X5) )
                          & ssItem(X4) )
                      & neq(X1,nil) ) )
                  & X0 = X2
                  & X1 = X3
                  & ssList(X3) )
              & ssList(X2) )
          & ssList(X1) )
      & ssList(X0) ),
    inference(ennf_transformation,[],[f97]) ).

fof(f222,plain,
    ? [X0] :
      ( ? [X1] :
          ( ? [X2] :
              ( ? [X3] :
                  ( ( ( ~ neq(X3,nil)
                      & neq(X1,nil) )
                    | ( ~ singletonP(X0)
                      & ? [X4] :
                          ( ? [X5] :
                              ( app(X5,cons(X4,nil)) = X3
                              & cons(X4,nil) = X2
                              & ssList(X5) )
                          & ssItem(X4) )
                      & neq(X1,nil) ) )
                  & X0 = X2
                  & X1 = X3
                  & ssList(X3) )
              & ssList(X2) )
          & ssList(X1) )
      & ssList(X0) ),
    inference(flattening,[],[f221]) ).

fof(f232,plain,
    ! [X0,X3,X2,X1] :
      ( ( ~ singletonP(X0)
        & ? [X4] :
            ( ? [X5] :
                ( app(X5,cons(X4,nil)) = X3
                & cons(X4,nil) = X2
                & ssList(X5) )
            & ssItem(X4) )
        & neq(X1,nil) )
      | ~ sP6(X0,X3,X2,X1) ),
    introduced(predicate_definition_introduction,[new_symbols(naming,[sP6])]) ).

fof(f233,plain,
    ? [X0] :
      ( ? [X1] :
          ( ? [X2] :
              ( ? [X3] :
                  ( ( ( ~ neq(X3,nil)
                      & neq(X1,nil) )
                    | sP6(X0,X3,X2,X1) )
                  & X0 = X2
                  & X1 = X3
                  & ssList(X3) )
              & ssList(X2) )
          & ssList(X1) )
      & ssList(X0) ),
    inference(definition_folding,[],[f222,f232]) ).

fof(f243,plain,
    ! [X0] :
      ( ( ( singletonP(X0)
          | ! [X1] :
              ( cons(X1,nil) != X0
              | ~ ssItem(X1) ) )
        & ( ? [X1] :
              ( cons(X1,nil) = X0
              & ssItem(X1) )
          | ~ singletonP(X0) ) )
      | ~ ssList(X0) ),
    inference(nnf_transformation,[],[f100]) ).

fof(f244,plain,
    ! [X0] :
      ( ( ( singletonP(X0)
          | ! [X1] :
              ( cons(X1,nil) != X0
              | ~ ssItem(X1) ) )
        & ( ? [X2] :
              ( cons(X2,nil) = X0
              & ssItem(X2) )
          | ~ singletonP(X0) ) )
      | ~ ssList(X0) ),
    inference(rectify,[],[f243]) ).

fof(f245,plain,
    ! [X0] :
      ( ? [X2] :
          ( cons(X2,nil) = X0
          & ssItem(X2) )
     => ( cons(sK11(X0),nil) = X0
        & ssItem(sK11(X0)) ) ),
    introduced(choice_axiom,[]) ).

fof(f246,plain,
    ! [X0] :
      ( ( ( singletonP(X0)
          | ! [X1] :
              ( cons(X1,nil) != X0
              | ~ ssItem(X1) ) )
        & ( ( cons(sK11(X0),nil) = X0
            & ssItem(sK11(X0)) )
          | ~ singletonP(X0) ) )
      | ~ ssList(X0) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK11])],[f244,f245]) ).

fof(f345,plain,
    ! [X0,X3,X2,X1] :
      ( ( ~ singletonP(X0)
        & ? [X4] :
            ( ? [X5] :
                ( app(X5,cons(X4,nil)) = X3
                & cons(X4,nil) = X2
                & ssList(X5) )
            & ssItem(X4) )
        & neq(X1,nil) )
      | ~ sP6(X0,X3,X2,X1) ),
    inference(nnf_transformation,[],[f232]) ).

fof(f346,plain,
    ! [X0,X1,X2,X3] :
      ( ( ~ singletonP(X0)
        & ? [X4] :
            ( ? [X5] :
                ( app(X5,cons(X4,nil)) = X1
                & cons(X4,nil) = X2
                & ssList(X5) )
            & ssItem(X4) )
        & neq(X3,nil) )
      | ~ sP6(X0,X1,X2,X3) ),
    inference(rectify,[],[f345]) ).

fof(f347,plain,
    ! [X1,X2] :
      ( ? [X4] :
          ( ? [X5] :
              ( app(X5,cons(X4,nil)) = X1
              & cons(X4,nil) = X2
              & ssList(X5) )
          & ssItem(X4) )
     => ( ? [X5] :
            ( app(X5,cons(sK54(X1,X2),nil)) = X1
            & cons(sK54(X1,X2),nil) = X2
            & ssList(X5) )
        & ssItem(sK54(X1,X2)) ) ),
    introduced(choice_axiom,[]) ).

fof(f348,plain,
    ! [X1,X2] :
      ( ? [X5] :
          ( app(X5,cons(sK54(X1,X2),nil)) = X1
          & cons(sK54(X1,X2),nil) = X2
          & ssList(X5) )
     => ( app(sK55(X1,X2),cons(sK54(X1,X2),nil)) = X1
        & cons(sK54(X1,X2),nil) = X2
        & ssList(sK55(X1,X2)) ) ),
    introduced(choice_axiom,[]) ).

fof(f349,plain,
    ! [X0,X1,X2,X3] :
      ( ( ~ singletonP(X0)
        & app(sK55(X1,X2),cons(sK54(X1,X2),nil)) = X1
        & cons(sK54(X1,X2),nil) = X2
        & ssList(sK55(X1,X2))
        & ssItem(sK54(X1,X2))
        & neq(X3,nil) )
      | ~ sP6(X0,X1,X2,X3) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK54,sK55])],[f346,f348,f347]) ).

fof(f350,plain,
    ( ? [X0] :
        ( ? [X1] :
            ( ? [X2] :
                ( ? [X3] :
                    ( ( ( ~ neq(X3,nil)
                        & neq(X1,nil) )
                      | sP6(X0,X3,X2,X1) )
                    & X0 = X2
                    & X1 = X3
                    & ssList(X3) )
                & ssList(X2) )
            & ssList(X1) )
        & ssList(X0) )
   => ( ? [X1] :
          ( ? [X2] :
              ( ? [X3] :
                  ( ( ( ~ neq(X3,nil)
                      & neq(X1,nil) )
                    | sP6(sK56,X3,X2,X1) )
                  & sK56 = X2
                  & X1 = X3
                  & ssList(X3) )
              & ssList(X2) )
          & ssList(X1) )
      & ssList(sK56) ) ),
    introduced(choice_axiom,[]) ).

fof(f351,plain,
    ( ? [X1] :
        ( ? [X2] :
            ( ? [X3] :
                ( ( ( ~ neq(X3,nil)
                    & neq(X1,nil) )
                  | sP6(sK56,X3,X2,X1) )
                & sK56 = X2
                & X1 = X3
                & ssList(X3) )
            & ssList(X2) )
        & ssList(X1) )
   => ( ? [X2] :
          ( ? [X3] :
              ( ( ( ~ neq(X3,nil)
                  & neq(sK57,nil) )
                | sP6(sK56,X3,X2,sK57) )
              & sK56 = X2
              & sK57 = X3
              & ssList(X3) )
          & ssList(X2) )
      & ssList(sK57) ) ),
    introduced(choice_axiom,[]) ).

fof(f352,plain,
    ( ? [X2] :
        ( ? [X3] :
            ( ( ( ~ neq(X3,nil)
                & neq(sK57,nil) )
              | sP6(sK56,X3,X2,sK57) )
            & sK56 = X2
            & sK57 = X3
            & ssList(X3) )
        & ssList(X2) )
   => ( ? [X3] :
          ( ( ( ~ neq(X3,nil)
              & neq(sK57,nil) )
            | sP6(sK56,X3,sK58,sK57) )
          & sK56 = sK58
          & sK57 = X3
          & ssList(X3) )
      & ssList(sK58) ) ),
    introduced(choice_axiom,[]) ).

fof(f353,plain,
    ( ? [X3] :
        ( ( ( ~ neq(X3,nil)
            & neq(sK57,nil) )
          | sP6(sK56,X3,sK58,sK57) )
        & sK56 = sK58
        & sK57 = X3
        & ssList(X3) )
   => ( ( ( ~ neq(sK59,nil)
          & neq(sK57,nil) )
        | sP6(sK56,sK59,sK58,sK57) )
      & sK56 = sK58
      & sK57 = sK59
      & ssList(sK59) ) ),
    introduced(choice_axiom,[]) ).

fof(f354,plain,
    ( ( ( ~ neq(sK59,nil)
        & neq(sK57,nil) )
      | sP6(sK56,sK59,sK58,sK57) )
    & sK56 = sK58
    & sK57 = sK59
    & ssList(sK59)
    & ssList(sK58)
    & ssList(sK57)
    & ssList(sK56) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK56,sK57,sK58,sK59])],[f233,f353,f352,f351,f350]) ).

fof(f366,plain,
    ! [X0,X1] :
      ( singletonP(X0)
      | cons(X1,nil) != X0
      | ~ ssItem(X1)
      | ~ ssList(X0) ),
    inference(cnf_transformation,[],[f246]) ).

fof(f555,plain,
    ! [X2,X3,X0,X1] :
      ( ssItem(sK54(X1,X2))
      | ~ sP6(X0,X1,X2,X3) ),
    inference(cnf_transformation,[],[f349]) ).

fof(f557,plain,
    ! [X2,X3,X0,X1] :
      ( cons(sK54(X1,X2),nil) = X2
      | ~ sP6(X0,X1,X2,X3) ),
    inference(cnf_transformation,[],[f349]) ).

fof(f559,plain,
    ! [X2,X3,X0,X1] :
      ( ~ singletonP(X0)
      | ~ sP6(X0,X1,X2,X3) ),
    inference(cnf_transformation,[],[f349]) ).

fof(f560,plain,
    ssList(sK56),
    inference(cnf_transformation,[],[f354]) ).

fof(f564,plain,
    sK57 = sK59,
    inference(cnf_transformation,[],[f354]) ).

fof(f565,plain,
    sK56 = sK58,
    inference(cnf_transformation,[],[f354]) ).

fof(f566,plain,
    ( neq(sK57,nil)
    | sP6(sK56,sK59,sK58,sK57) ),
    inference(cnf_transformation,[],[f354]) ).

fof(f567,plain,
    ( ~ neq(sK59,nil)
    | sP6(sK56,sK59,sK58,sK57) ),
    inference(cnf_transformation,[],[f354]) ).

fof(f568,plain,
    ( ~ neq(sK59,nil)
    | sP6(sK58,sK59,sK58,sK59) ),
    inference(definition_unfolding,[],[f567,f565,f564]) ).

fof(f569,plain,
    ( neq(sK59,nil)
    | sP6(sK58,sK59,sK58,sK59) ),
    inference(definition_unfolding,[],[f566,f564,f565,f564]) ).

fof(f571,plain,
    ssList(sK58),
    inference(definition_unfolding,[],[f560,f565]) ).

fof(f574,plain,
    ! [X1] :
      ( singletonP(cons(X1,nil))
      | ~ ssItem(X1)
      | ~ ssList(cons(X1,nil)) ),
    inference(equality_resolution,[],[f366]) ).

cnf(c_58,plain,
    ( ~ ssList(cons(X0,nil))
    | ~ ssItem(X0)
    | singletonP(cons(X0,nil)) ),
    inference(cnf_transformation,[],[f574]) ).

cnf(c_246,plain,
    ( ~ sP6(X0,X1,X2,X3)
    | ~ singletonP(X0) ),
    inference(cnf_transformation,[],[f559]) ).

cnf(c_248,plain,
    ( ~ sP6(X0,X1,X2,X3)
    | cons(sK54(X1,X2),nil) = X2 ),
    inference(cnf_transformation,[],[f557]) ).

cnf(c_250,plain,
    ( ~ sP6(X0,X1,X2,X3)
    | ssItem(sK54(X1,X2)) ),
    inference(cnf_transformation,[],[f555]) ).

cnf(c_252,negated_conjecture,
    ( ~ neq(sK59,nil)
    | sP6(sK58,sK59,sK58,sK59) ),
    inference(cnf_transformation,[],[f568]) ).

cnf(c_253,negated_conjecture,
    ( sP6(sK58,sK59,sK58,sK59)
    | neq(sK59,nil) ),
    inference(cnf_transformation,[],[f569]) ).

cnf(c_257,negated_conjecture,
    ssList(sK58),
    inference(cnf_transformation,[],[f571]) ).

cnf(c_375,negated_conjecture,
    sP6(sK58,sK59,sK58,sK59),
    inference(global_subsumption_just,[status(thm)],[c_253,c_253,c_252]) ).

cnf(c_377,negated_conjecture,
    sP6(sK58,sK59,sK58,sK59),
    inference(global_subsumption_just,[status(thm)],[c_252,c_375]) ).

cnf(c_3135,plain,
    ( X0 != sK58
    | X1 != sK59
    | X2 != sK58
    | X3 != sK59
    | ssItem(sK54(X1,X2)) ),
    inference(resolution_lifted,[status(thm)],[c_250,c_377]) ).

cnf(c_3136,plain,
    ssItem(sK54(sK59,sK58)),
    inference(unflattening,[status(thm)],[c_3135]) ).

cnf(c_3145,plain,
    ( X0 != sK58
    | X1 != sK59
    | X2 != sK58
    | X3 != sK59
    | cons(sK54(X1,X2),nil) = X2 ),
    inference(resolution_lifted,[status(thm)],[c_248,c_377]) ).

cnf(c_3146,plain,
    cons(sK54(sK59,sK58),nil) = sK58,
    inference(unflattening,[status(thm)],[c_3145]) ).

cnf(c_3155,plain,
    ( X0 != sK58
    | X1 != sK59
    | X2 != sK58
    | X3 != sK59
    | ~ singletonP(X0) ),
    inference(resolution_lifted,[status(thm)],[c_246,c_377]) ).

cnf(c_3156,plain,
    ~ singletonP(sK58),
    inference(unflattening,[status(thm)],[c_3155]) ).

cnf(c_11759,plain,
    ( ~ ssItem(sK54(sK59,sK58))
    | ~ ssList(sK58)
    | singletonP(cons(sK54(sK59,sK58),nil)) ),
    inference(superposition,[status(thm)],[c_3146,c_58]) ).

cnf(c_11760,plain,
    ( ~ ssItem(sK54(sK59,sK58))
    | ~ ssList(sK58)
    | singletonP(sK58) ),
    inference(light_normalisation,[status(thm)],[c_11759,c_3146]) ).

cnf(c_11761,plain,
    $false,
    inference(forward_subsumption_resolution,[status(thm)],[c_11760,c_3156,c_257,c_3136]) ).


%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.12/0.12  % Problem  : SWC254+1 : TPTP v8.1.2. Released v2.4.0.
% 0.12/0.13  % Command  : run_iprover %s %d THM
% 0.13/0.34  % Computer : n013.cluster.edu
% 0.13/0.34  % Model    : x86_64 x86_64
% 0.13/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.34  % Memory   : 8042.1875MB
% 0.13/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.34  % CPULimit : 300
% 0.13/0.34  % WCLimit  : 300
% 0.13/0.34  % DateTime : Mon Aug 28 16:07:17 EDT 2023
% 0.13/0.34  % CPUTime  : 
% 0.19/0.47  Running first-order theorem proving
% 0.19/0.47  Running: /export/starexec/sandbox2/solver/bin/run_problem --schedule fof_schedule --no_cores 8 /export/starexec/sandbox2/benchmark/theBenchmark.p 300
% 3.60/1.15  % SZS status Started for theBenchmark.p
% 3.60/1.15  % SZS status Theorem for theBenchmark.p
% 3.60/1.15  
% 3.60/1.15  %---------------- iProver v3.8 (pre SMT-COMP 2023/CASC 2023) ----------------%
% 3.60/1.15  
% 3.60/1.15  ------  iProver source info
% 3.60/1.15  
% 3.60/1.15  git: date: 2023-05-31 18:12:56 +0000
% 3.60/1.15  git: sha1: 8abddc1f627fd3ce0bcb8b4cbf113b3cc443d7b6
% 3.60/1.15  git: non_committed_changes: false
% 3.60/1.15  git: last_make_outside_of_git: false
% 3.60/1.15  
% 3.60/1.15  ------ Parsing...
% 3.60/1.15  ------ Clausification by vclausify_rel  & Parsing by iProver...
% 3.60/1.15  
% 3.60/1.15  ------ Preprocessing... sup_sim: 0  sf_s  rm: 1 0s  sf_e  pe_s  pe:1:0s pe:2:0s pe:4:0s pe:8:0s pe_e  sup_sim: 1  sf_s  rm: 6 0s  sf_e  pe_s  pe_e 
% 3.60/1.15  
% 3.60/1.15  ------ Preprocessing... gs_s  sp: 0 0s  gs_e  snvd_s sp: 0 0s snvd_e 
% 3.60/1.15  
% 3.60/1.15  ------ Preprocessing... sf_s  rm: 1 0s  sf_e  sf_s  rm: 0 0s  sf_e 
% 3.60/1.15  ------ Proving...
% 3.60/1.15  ------ Problem Properties 
% 3.60/1.15  
% 3.60/1.15  
% 3.60/1.15  clauses                                 188
% 3.60/1.15  conjectures                             2
% 3.60/1.15  EPR                                     53
% 3.60/1.15  Horn                                    120
% 3.60/1.15  unary                                   24
% 3.60/1.15  binary                                  40
% 3.60/1.15  lits                                    626
% 3.60/1.15  lits eq                                 81
% 3.60/1.15  fd_pure                                 0
% 3.60/1.15  fd_pseudo                               0
% 3.60/1.15  fd_cond                                 21
% 3.60/1.15  fd_pseudo_cond                          14
% 3.60/1.15  AC symbols                              0
% 3.60/1.15  
% 3.60/1.15  ------ Schedule dynamic 5 is on 
% 3.60/1.15  
% 3.60/1.15  ------ Input Options "--resolution_flag false --inst_lit_sel_side none" Time Limit: 10.
% 3.60/1.15  
% 3.60/1.15  
% 3.60/1.15  ------ 
% 3.60/1.15  Current options:
% 3.60/1.15  ------ 
% 3.60/1.15  
% 3.60/1.15  
% 3.60/1.15  
% 3.60/1.15  
% 3.60/1.15  ------ Proving...
% 3.60/1.15  
% 3.60/1.15  
% 3.60/1.15  % SZS status Theorem for theBenchmark.p
% 3.60/1.15  
% 3.60/1.15  % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 3.60/1.15  
% 3.60/1.15  
%------------------------------------------------------------------------------