TSTP Solution File: DAT334_8 by iProver---3.9

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%------------------------------------------------------------------------------
% File     : iProver---3.9
% Problem  : DAT334_8 : TPTP v8.2.0. Released v8.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run_iprover %s %d THM

% Computer : n027.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 : Fri May  3 02:14:42 EDT 2024

% Result   : Theorem 0.81s 1.18s
% Output   : CNFRefutation 0.81s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    7
%            Number of leaves      :    4
% Syntax   : Number of formulae    :   20 (   4 unt;   0 typ;   0 def)
%            Number of atoms       :  116 (   0 equ)
%            Maximal formula atoms :    6 (   5 avg)
%            Number of connectives :   59 (  21   ~;  13   |;  20   &)
%                                         (   0 <=>;   5  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    8 (   4 avg)
%            Maximal term depth    :    1 (   1 avg)
%            Number of FOOLs       :   58 (  58 fml;   0 var)
%            Number of types       :    1 (   0 usr)
%            Number of type conns  :    0 (   0   >;   0   *;   0   +;   0  <<)
%            Number of predicates  :   14 (  13 usr;  10 prp; 0-3 aty)
%            Number of functors    :    0 (   0 usr;   0 con; --- aty)
%            Number of variables   :   23 (   0 sgn  13   !;   7   ?;  11   :)

% Comments : 
%------------------------------------------------------------------------------
tff(f3,axiom,
    ! [X0: '$ki_world'] :
      ( '$ki_accessible'('$ki_local_world',X0)
     => ( teach(X0,sue,psych)
        & teach(X0,mary,psych)
        & ? [X1] :
            ( teach(X0,X1,cs)
            & '$ki_exists_in_world_$i'(X0,X1) )
        & teach(X0,john,math) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',db) ).

tff(f4,conjecture,
    ! [X0: '$ki_world'] :
      ( '$ki_accessible'('$ki_local_world',X0)
     => ? [X1] :
          ( teach(X0,X1,cs)
          & '$ki_exists_in_world_$i'(X0,X1) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',verify) ).

tff(f5,negated_conjecture,
    ~ ! [X0: '$ki_world'] :
        ( '$ki_accessible'('$ki_local_world',X0)
       => ? [X1] :
            ( teach(X0,X1,cs)
            & '$ki_exists_in_world_$i'(X0,X1) ) ),
    inference(negated_conjecture,[],[f4]) ).

tff(f6,plain,
    ! [X0: '$ki_world'] :
      ( ( teach(X0,sue,psych)
        & teach(X0,mary,psych)
        & ? [X1] :
            ( teach(X0,X1,cs)
            & '$ki_exists_in_world_$i'(X0,X1) )
        & teach(X0,john,math) )
      | ~ '$ki_accessible'('$ki_local_world',X0) ),
    inference(ennf_transformation,[],[f3]) ).

tff(f7,plain,
    ? [X0: '$ki_world'] :
      ( ! [X1] :
          ( ~ teach(X0,X1,cs)
          | ~ '$ki_exists_in_world_$i'(X0,X1) )
      & '$ki_accessible'('$ki_local_world',X0) ),
    inference(ennf_transformation,[],[f5]) ).

tff(f10,plain,
    ! [X0: '$ki_world'] :
      ( ? [X1] :
          ( teach(X0,X1,cs)
          & '$ki_exists_in_world_$i'(X0,X1) )
     => ( teach(X0,sK1(X0),cs)
        & '$ki_exists_in_world_$i'(X0,sK1(X0)) ) ),
    introduced(choice_axiom,[]) ).

tff(f11,plain,
    ! [X0: '$ki_world'] :
      ( ( teach(X0,sue,psych)
        & teach(X0,mary,psych)
        & teach(X0,sK1(X0),cs)
        & '$ki_exists_in_world_$i'(X0,sK1(X0))
        & teach(X0,john,math) )
      | ~ '$ki_accessible'('$ki_local_world',X0) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK1])],[f6,f10]) ).

tff(f12,plain,
    ( ? [X0: '$ki_world'] :
        ( ! [X1] :
            ( ~ teach(X0,X1,cs)
            | ~ '$ki_exists_in_world_$i'(X0,X1) )
        & '$ki_accessible'('$ki_local_world',X0) )
   => ( ! [X1] :
          ( ~ teach(sK2,X1,cs)
          | ~ '$ki_exists_in_world_$i'(sK2,X1) )
      & '$ki_accessible'('$ki_local_world',sK2) ) ),
    introduced(choice_axiom,[]) ).

tff(f13,plain,
    ( ! [X1] :
        ( ~ teach(sK2,X1,cs)
        | ~ '$ki_exists_in_world_$i'(sK2,X1) )
    & '$ki_accessible'('$ki_local_world',sK2) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK2])],[f7,f12]) ).

tff(f17,plain,
    ! [X0: '$ki_world'] :
      ( '$ki_exists_in_world_$i'(X0,sK1(X0))
      | ~ '$ki_accessible'('$ki_local_world',X0) ),
    inference(cnf_transformation,[],[f11]) ).

tff(f18,plain,
    ! [X0: '$ki_world'] :
      ( teach(X0,sK1(X0),cs)
      | ~ '$ki_accessible'('$ki_local_world',X0) ),
    inference(cnf_transformation,[],[f11]) ).

tff(f21,plain,
    '$ki_accessible'('$ki_local_world',sK2),
    inference(cnf_transformation,[],[f13]) ).

tff(f22,plain,
    ! [X1: $i] :
      ( ~ teach(sK2,X1,cs)
      | ~ '$ki_exists_in_world_$i'(sK2,X1) ),
    inference(cnf_transformation,[],[f13]) ).

cnf(c_53,plain,
    ( ~ '$ki_accessible'('$ki_local_world',X0_13)
    | teach(X0_13,sK1(X0_13),cs) ),
    inference(cnf_transformation,[],[f18]) ).

cnf(c_54,plain,
    ( ~ '$ki_accessible'('$ki_local_world',X0_13)
    | '$ki_exists_in_world_$i'(X0_13,sK1(X0_13)) ),
    inference(cnf_transformation,[],[f17]) ).

cnf(c_56,negated_conjecture,
    ( ~ teach(sK2,X0,cs)
    | ~ '$ki_exists_in_world_$i'(sK2,X0) ),
    inference(cnf_transformation,[],[f22]) ).

cnf(c_57,negated_conjecture,
    '$ki_accessible'('$ki_local_world',sK2),
    inference(cnf_transformation,[],[f21]) ).

cnf(c_100,plain,
    ( ~ teach(sK2,sK1(sK2),cs)
    | ~ '$ki_accessible'('$ki_local_world',sK2) ),
    inference(resolution,[status(thm)],[c_54,c_56]) ).

cnf(c_128,plain,
    teach(sK2,sK1(sK2),cs),
    inference(resolution,[status(thm)],[c_53,c_57]) ).

cnf(c_129,plain,
    $false,
    inference(prop_impl_just,[status(thm)],[c_128,c_100,c_57]) ).


%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.12  % Problem  : DAT334_8 : TPTP v8.2.0. Released v8.2.0.
% 0.03/0.13  % Command  : run_iprover %s %d THM
% 0.13/0.34  % Computer : n027.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 : Thu May  2 19:11:50 EDT 2024
% 0.13/0.35  % CPUTime  : 
% 0.20/0.47  Running first-order theorem proving
% 0.20/0.47  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
% 0.81/1.18  % SZS status Started for theBenchmark.p
% 0.81/1.18  % SZS status Theorem for theBenchmark.p
% 0.81/1.18  
% 0.81/1.18  %---------------- iProver v3.9 (pre CASC 2024/SMT-COMP 2024) ----------------%
% 0.81/1.18  
% 0.81/1.18  ------  iProver source info
% 0.81/1.18  
% 0.81/1.18  git: date: 2024-05-02 19:28:25 +0000
% 0.81/1.18  git: sha1: a33b5eb135c74074ba803943bb12f2ebd971352f
% 0.81/1.18  git: non_committed_changes: false
% 0.81/1.18  
% 0.81/1.18  ------ Parsing...
% 0.81/1.18  ------ Clausification by vclausify_rel  & Parsing by iProver...------  preprocesses with Global Options Modified: tff_prep: switching off prep_sem_filter, sub_typing, pure_diseq_elim
% 0.81/1.18  
% 0.81/1.18  
% 0.81/1.18  ------ Preprocessing... pe_s  pe:1:0s
% 0.81/1.18  
% 0.81/1.18  % SZS status Theorem for theBenchmark.p
% 0.81/1.18  
% 0.81/1.18  % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 0.81/1.18  
% 0.81/1.18  
%------------------------------------------------------------------------------