TSTP Solution File: SET604+3 by iProver---3.8

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : iProver---3.8
% Problem  : SET604+3 : TPTP v8.1.2. Released v2.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run_iprover %s %d THM

% Computer : n007.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 15:08:34 EDT 2023

% Result   : Theorem 1.77s 1.18s
% Output   : CNFRefutation 1.77s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    6
%            Number of leaves      :    4
% Syntax   : Number of formulae    :   16 (  11 unt;   0 def)
%            Number of atoms       :   23 (  14 equ)
%            Maximal formula atoms :    4 (   1 avg)
%            Number of connectives :   18 (  11   ~;   4   |;   1   &)
%                                         (   1 <=>;   1  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    6 (   3 avg)
%            Maximal term depth    :    2 (   1 avg)
%            Number of predicates  :    3 (   1 usr;   1 prp; 0-2 aty)
%            Number of functors    :    3 (   3 usr;   2 con; 0-2 aty)
%            Number of variables   :   16 (   2 sgn;  10   !;   2   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f1,axiom,
    ! [X0] : subset(empty_set,X0),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',empty_set_subset) ).

fof(f2,axiom,
    ! [X0,X1] :
      ( empty_set = difference(X0,X1)
    <=> subset(X0,X1) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',difference_empty_set) ).

fof(f9,conjecture,
    ! [X0] : empty_set = difference(empty_set,X0),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',prove_no_difference_with_empty_set) ).

fof(f10,negated_conjecture,
    ~ ! [X0] : empty_set = difference(empty_set,X0),
    inference(negated_conjecture,[],[f9]) ).

fof(f12,plain,
    ? [X0] : empty_set != difference(empty_set,X0),
    inference(ennf_transformation,[],[f10]) ).

fof(f13,plain,
    ! [X0,X1] :
      ( ( empty_set = difference(X0,X1)
        | ~ subset(X0,X1) )
      & ( subset(X0,X1)
        | empty_set != difference(X0,X1) ) ),
    inference(nnf_transformation,[],[f2]) ).

fof(f22,plain,
    ( ? [X0] : empty_set != difference(empty_set,X0)
   => empty_set != difference(empty_set,sK1) ),
    introduced(choice_axiom,[]) ).

fof(f23,plain,
    empty_set != difference(empty_set,sK1),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK1])],[f12,f22]) ).

fof(f24,plain,
    ! [X0] : subset(empty_set,X0),
    inference(cnf_transformation,[],[f1]) ).

fof(f26,plain,
    ! [X0,X1] :
      ( empty_set = difference(X0,X1)
      | ~ subset(X0,X1) ),
    inference(cnf_transformation,[],[f13]) ).

fof(f38,plain,
    empty_set != difference(empty_set,sK1),
    inference(cnf_transformation,[],[f23]) ).

cnf(c_49,plain,
    subset(empty_set,X0),
    inference(cnf_transformation,[],[f24]) ).

cnf(c_50,plain,
    ( ~ subset(X0,X1)
    | difference(X0,X1) = empty_set ),
    inference(cnf_transformation,[],[f26]) ).

cnf(c_63,negated_conjecture,
    difference(empty_set,sK1) != empty_set,
    inference(cnf_transformation,[],[f38]) ).

cnf(c_635,plain,
    difference(empty_set,X0) = empty_set,
    inference(superposition,[status(thm)],[c_49,c_50]) ).

cnf(c_637,plain,
    $false,
    inference(backward_subsumption_resolution,[status(thm)],[c_63,c_635]) ).


%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.12  % Problem  : SET604+3 : TPTP v8.1.2. Released v2.2.0.
% 0.07/0.13  % Command  : run_iprover %s %d THM
% 0.13/0.35  % Computer : n007.cluster.edu
% 0.13/0.35  % Model    : x86_64 x86_64
% 0.13/0.35  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.35  % Memory   : 8042.1875MB
% 0.13/0.35  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.35  % CPULimit : 300
% 0.13/0.35  % WCLimit  : 300
% 0.13/0.35  % DateTime : Sat Aug 26 12:23:26 EDT 2023
% 0.13/0.35  % CPUTime  : 
% 0.20/0.48  Running first-order theorem proving
% 0.20/0.48  Running: /export/starexec/sandbox/solver/bin/run_problem --schedule fof_schedule --no_cores 8 /export/starexec/sandbox/benchmark/theBenchmark.p 300
% 1.77/1.18  % SZS status Started for theBenchmark.p
% 1.77/1.18  % SZS status Theorem for theBenchmark.p
% 1.77/1.18  
% 1.77/1.18  %---------------- iProver v3.8 (pre SMT-COMP 2023/CASC 2023) ----------------%
% 1.77/1.18  
% 1.77/1.18  ------  iProver source info
% 1.77/1.18  
% 1.77/1.18  git: date: 2023-05-31 18:12:56 +0000
% 1.77/1.18  git: sha1: 8abddc1f627fd3ce0bcb8b4cbf113b3cc443d7b6
% 1.77/1.18  git: non_committed_changes: false
% 1.77/1.18  git: last_make_outside_of_git: false
% 1.77/1.18  
% 1.77/1.18  ------ Parsing...
% 1.77/1.18  ------ Clausification by vclausify_rel  & Parsing by iProver...
% 1.77/1.18  
% 1.77/1.18  ------ Preprocessing... sup_sim: 0  sf_s  rm: 1 0s  sf_e  pe_s  pe_e  sup_sim: 0  sf_s  rm: 1 0s  sf_e  pe_s  pe_e 
% 1.77/1.18  
% 1.77/1.18  ------ Preprocessing... gs_s  sp: 0 0s  gs_e  snvd_s sp: 0 0s snvd_e 
% 1.77/1.18  
% 1.77/1.18  ------ Preprocessing... sf_s  rm: 1 0s  sf_e  sf_s  rm: 0 0s  sf_e 
% 1.77/1.18  ------ Proving...
% 1.77/1.18  ------ Problem Properties 
% 1.77/1.18  
% 1.77/1.18  
% 1.77/1.18  clauses                                 13
% 1.77/1.18  conjectures                             1
% 1.77/1.18  EPR                                     5
% 1.77/1.18  Horn                                    11
% 1.77/1.18  unary                                   4
% 1.77/1.18  binary                                  6
% 1.77/1.18  lits                                    25
% 1.77/1.18  lits eq                                 4
% 1.77/1.18  fd_pure                                 0
% 1.77/1.18  fd_pseudo                               0
% 1.77/1.18  fd_cond                                 0
% 1.77/1.18  fd_pseudo_cond                          1
% 1.77/1.18  AC symbols                              0
% 1.77/1.18  
% 1.77/1.18  ------ Schedule dynamic 5 is on 
% 1.77/1.18  
% 1.77/1.18  ------ Input Options "--resolution_flag false --inst_lit_sel_side none" Time Limit: 10.
% 1.77/1.18  
% 1.77/1.18  
% 1.77/1.18  ------ 
% 1.77/1.18  Current options:
% 1.77/1.18  ------ 
% 1.77/1.18  
% 1.77/1.18  
% 1.77/1.18  
% 1.77/1.18  
% 1.77/1.18  ------ Proving...
% 1.77/1.18  
% 1.77/1.18  
% 1.77/1.18  % SZS status Theorem for theBenchmark.p
% 1.77/1.18  
% 1.77/1.18  % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 1.77/1.18  
% 1.77/1.18  
%------------------------------------------------------------------------------