TSTP Solution File: SYN978+1 by iProver---3.8

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : iProver---3.8
% Problem  : SYN978+1 : TPTP v8.1.2. Released v3.1.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run_iprover %s %d THM

% Computer : n016.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 Sep  1 03:15:01 EDT 2023

% Result   : Theorem 0.70s 1.14s
% Output   : CNFRefutation 0.70s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    8
%            Number of leaves      :    1
% Syntax   : Number of formulae    :   13 (   5 unt;   0 def)
%            Number of atoms       :   37 (   0 equ)
%            Maximal formula atoms :    6 (   2 avg)
%            Number of connectives :   33 (   9   ~;   6   |;  12   &)
%                                         (   2 <=>;   2  =>;   0  <=;   2 <~>)
%            Maximal formula depth :    4 (   2 avg)
%            Maximal term depth    :    0 (   0 avg)
%            Number of predicates  :    3 (   2 usr;   3 prp; 0-0 aty)
%            Number of functors    :    0 (   0 usr;   0 con; --- aty)
%            Number of variables   :    0 (   0 sgn;   0   !;   0   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f1,conjecture,
    ( ( b
      & a )
   => ( a
    <=> b ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this) ).

fof(f2,negated_conjecture,
    ~ ( ( b
        & a )
     => ( a
      <=> b ) ),
    inference(negated_conjecture,[],[f1]) ).

fof(f3,plain,
    ( ( a
    <~> b )
    & b
    & a ),
    inference(ennf_transformation,[],[f2]) ).

fof(f4,plain,
    ( ( a
    <~> b )
    & b
    & a ),
    inference(flattening,[],[f3]) ).

fof(f5,plain,
    ( ( ~ b
      | ~ a )
    & ( b
      | a )
    & b
    & a ),
    inference(nnf_transformation,[],[f4]) ).

fof(f6,plain,
    ( ( ~ b
      | ~ a )
    & ( b
      | a )
    & b
    & a ),
    inference(flattening,[],[f5]) ).

fof(f7,plain,
    a,
    inference(cnf_transformation,[],[f6]) ).

fof(f8,plain,
    b,
    inference(cnf_transformation,[],[f6]) ).

fof(f10,plain,
    ( ~ b
    | ~ a ),
    inference(cnf_transformation,[],[f6]) ).

cnf(c_49,negated_conjecture,
    ( ~ b
    | ~ a ),
    inference(cnf_transformation,[],[f10]) ).

cnf(c_51,negated_conjecture,
    b,
    inference(cnf_transformation,[],[f8]) ).

cnf(c_52,negated_conjecture,
    a,
    inference(cnf_transformation,[],[f7]) ).

cnf(c_53,plain,
    $false,
    inference(prop_impl_just,[status(thm)],[c_49,c_51,c_52]) ).


%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.12  % Problem  : SYN978+1 : TPTP v8.1.2. Released v3.1.0.
% 0.00/0.13  % Command  : run_iprover %s %d THM
% 0.13/0.34  % Computer : n016.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 : Sat Aug 26 20:11:27 EDT 2023
% 0.13/0.35  % CPUTime  : 
% 0.20/0.47  Running first-order theorem proving
% 0.20/0.47  Running: /export/starexec/sandbox2/solver/bin/run_problem --schedule fof_schedule --no_cores 8 /export/starexec/sandbox2/benchmark/theBenchmark.p 300
% 0.70/1.14  % SZS status Started for theBenchmark.p
% 0.70/1.14  % SZS status Theorem for theBenchmark.p
% 0.70/1.14  
% 0.70/1.14  %---------------- iProver v3.8 (pre SMT-COMP 2023/CASC 2023) ----------------%
% 0.70/1.14  
% 0.70/1.14  ------  iProver source info
% 0.70/1.14  
% 0.70/1.14  git: date: 2023-05-31 18:12:56 +0000
% 0.70/1.14  git: sha1: 8abddc1f627fd3ce0bcb8b4cbf113b3cc443d7b6
% 0.70/1.14  git: non_committed_changes: false
% 0.70/1.14  git: last_make_outside_of_git: false
% 0.70/1.14  
% 0.70/1.14  ------ Parsing...
% 0.70/1.14  ------ Clausification by vclausify_rel  & Parsing by iProver...------  preprocesses with Option_epr_non_horn_non_eq
% 0.70/1.14  
% 0.70/1.14  
% 0.70/1.14  ------ Preprocessing...
% 0.70/1.14  
% 0.70/1.14  % SZS status Theorem for theBenchmark.p
% 0.70/1.14  
% 0.70/1.14  % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 0.70/1.14  
% 0.70/1.14  
%------------------------------------------------------------------------------