TSTP Solution File: SYN073+1 by iProver---3.9

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%------------------------------------------------------------------------------
% File     : iProver---3.9
% Problem  : SYN073+1 : TPTP v8.1.2. Released v2.0.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run_iprover %s %d THM

% Computer : n029.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 03:29:09 EDT 2024

% Result   : Theorem 1.67s 1.17s
% Output   : CNFRefutation 1.67s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   10
%            Number of leaves      :    2
% Syntax   : Number of formulae    :   17 (   6 unt;   0 def)
%            Number of atoms       :   33 (   0 equ)
%            Maximal formula atoms :    3 (   1 avg)
%            Number of connectives :   27 (  11   ~;  10   |;   3   &)
%                                         (   0 <=>;   3  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    6 (   3 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :    2 (   1 usr;   1 prp; 0-2 aty)
%            Number of functors    :    2 (   2 usr;   1 con; 0-1 aty)
%            Number of variables   :   31 (   3 sgn  19   !;   5   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f1,conjecture,
    ( ! [X0] :
        ( ! [X1] : big_f(X0,X1)
        | big_f(a,X0) )
   => ? [X2] :
      ! [X3] : big_f(X2,X3) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',pel50) ).

fof(f2,negated_conjecture,
    ~ ( ! [X0] :
          ( ! [X1] : big_f(X0,X1)
          | big_f(a,X0) )
     => ? [X2] :
        ! [X3] : big_f(X2,X3) ),
    inference(negated_conjecture,[],[f1]) ).

fof(f3,plain,
    ( ! [X2] :
      ? [X3] : ~ big_f(X2,X3)
    & ! [X0] :
        ( ! [X1] : big_f(X0,X1)
        | big_f(a,X0) ) ),
    inference(ennf_transformation,[],[f2]) ).

fof(f4,plain,
    ( ! [X0] :
      ? [X1] : ~ big_f(X0,X1)
    & ! [X2] :
        ( ! [X3] : big_f(X2,X3)
        | big_f(a,X2) ) ),
    inference(rectify,[],[f3]) ).

fof(f5,plain,
    ! [X0] :
      ( ? [X1] : ~ big_f(X0,X1)
     => ~ big_f(X0,sK0(X0)) ),
    introduced(choice_axiom,[]) ).

fof(f6,plain,
    ( ! [X0] : ~ big_f(X0,sK0(X0))
    & ! [X2] :
        ( ! [X3] : big_f(X2,X3)
        | big_f(a,X2) ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK0])],[f4,f5]) ).

fof(f7,plain,
    ! [X2,X3] :
      ( big_f(X2,X3)
      | big_f(a,X2) ),
    inference(cnf_transformation,[],[f6]) ).

fof(f8,plain,
    ! [X0] : ~ big_f(X0,sK0(X0)),
    inference(cnf_transformation,[],[f6]) ).

cnf(c_49,negated_conjecture,
    ~ big_f(X0,sK0(X0)),
    inference(cnf_transformation,[],[f8]) ).

cnf(c_50,negated_conjecture,
    ( big_f(X0,X1)
    | big_f(a,X0) ),
    inference(cnf_transformation,[],[f7]) ).

cnf(c_51,plain,
    ~ big_f(a,sK0(a)),
    inference(instantiation,[status(thm)],[c_49]) ).

cnf(c_59,negated_conjecture,
    ( big_f(X0,X1)
    | big_f(a,X0) ),
    inference(demodulation,[status(thm)],[c_50]) ).

cnf(c_60,negated_conjecture,
    ~ big_f(X0,sK0(X0)),
    inference(demodulation,[status(thm)],[c_49]) ).

cnf(c_61,plain,
    ( big_f(sK0(a),X0)
    | big_f(a,sK0(a)) ),
    inference(instantiation,[status(thm)],[c_59]) ).

cnf(c_65,plain,
    ( big_f(sK0(a),sK0(sK0(a)))
    | big_f(a,sK0(a)) ),
    inference(instantiation,[status(thm)],[c_61]) ).

cnf(c_66,plain,
    ~ big_f(sK0(a),sK0(sK0(a))),
    inference(instantiation,[status(thm)],[c_60]) ).

cnf(c_67,plain,
    $false,
    inference(prop_impl_just,[status(thm)],[c_66,c_65,c_51]) ).


%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.08/0.12  % Problem  : SYN073+1 : TPTP v8.1.2. Released v2.0.0.
% 0.08/0.13  % Command  : run_iprover %s %d THM
% 0.13/0.35  % Computer : n029.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 : Thu May  2 21:20:52 EDT 2024
% 0.13/0.35  % CPUTime  : 
% 0.21/0.47  Running first-order theorem proving
% 0.21/0.47  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
% 1.67/1.17  % SZS status Started for theBenchmark.p
% 1.67/1.17  % SZS status Theorem for theBenchmark.p
% 1.67/1.17  
% 1.67/1.17  %---------------- iProver v3.9 (pre CASC 2024/SMT-COMP 2024) ----------------%
% 1.67/1.17  
% 1.67/1.17  ------  iProver source info
% 1.67/1.17  
% 1.67/1.17  git: date: 2024-05-02 19:28:25 +0000
% 1.67/1.17  git: sha1: a33b5eb135c74074ba803943bb12f2ebd971352f
% 1.67/1.17  git: non_committed_changes: false
% 1.67/1.17  
% 1.67/1.17  ------ Parsing...
% 1.67/1.17  ------ Clausification by vclausify_rel  & Parsing by iProver...
% 1.67/1.17  
% 1.67/1.17  ------ Preprocessing... sf_s  rm: 0 0s  sf_e  pe_s  pe_e 
% 1.67/1.17  
% 1.67/1.17  ------ Preprocessing... gs_s  sp: 0 0s  gs_e  snvd_s sp: 0 0s snvd_e 
% 1.67/1.17  ------ Proving...
% 1.67/1.17  ------ Problem Properties 
% 1.67/1.17  
% 1.67/1.17  
% 1.67/1.17  clauses                                 2
% 1.67/1.17  conjectures                             2
% 1.67/1.17  EPR                                     1
% 1.67/1.17  Horn                                    1
% 1.67/1.17  unary                                   1
% 1.67/1.17  binary                                  1
% 1.67/1.17  lits                                    3
% 1.67/1.17  lits eq                                 0
% 1.67/1.17  fd_pure                                 0
% 1.67/1.17  fd_pseudo                               0
% 1.67/1.17  fd_cond                                 0
% 1.67/1.17  fd_pseudo_cond                          0
% 1.67/1.17  AC symbols                              0
% 1.67/1.17  
% 1.67/1.17  ------ Schedule dynamic 5 is on 
% 1.67/1.17  
% 1.67/1.17  ------ no equalities: superposition off 
% 1.67/1.17  
% 1.67/1.17  ------ Input Options "--resolution_flag false --inst_lit_sel_side none" Time Limit: 10.
% 1.67/1.17  
% 1.67/1.17  
% 1.67/1.17  ------ 
% 1.67/1.17  Current options:
% 1.67/1.17  ------ 
% 1.67/1.17  
% 1.67/1.17  
% 1.67/1.17  
% 1.67/1.17  
% 1.67/1.17  ------ Proving...
% 1.67/1.17  
% 1.67/1.17  
% 1.67/1.17  % SZS status Theorem for theBenchmark.p
% 1.67/1.17  
% 1.67/1.17  % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 1.67/1.17  
% 1.67/1.17  
%------------------------------------------------------------------------------