BEGIN
BEGIN_PATH_INPUT
&PATH
  restart_mode      = 'from_scratch'
  string_method     = 'neb',
  nstep_path        = 20, 
  ds                = 2.D0,
  opt_scheme        = "broyden",
  num_of_images     = 8,
  k_max             = 0.3D0,
  k_min             = 0.2D0,
  path_thr          = 0.2D0,
/
END_PATH_INPUT
BEGIN_ENGINE_INPUT
&CONTROL
  prefix         = "symmetric_H2+H"
/
&SYSTEM
  ibrav                  = 0,
  nat                    = 3,
  ntyp                   = 1,
  ecutwfc                = 20.0D0,
  ecutrho                = 100.0D0,
  nspin                  = 2,
  starting_magnetization = 0.5D0,
  occupations            = "smearing",
  degauss                = 0.03D0,
/
&ELECTRONS
  conv_thr    = 1.D-8,
  mixing_beta = 0.3D0,
/
&IONS
/
ATOMIC_SPECIES
H  1.00794  HUSPBE.RRKJ3
K_POINTS { gamma }
CELL_PARAMETERS { bohr }
  12.00000  0.00000  0.00000
   0.00000  5.00000  0.00000
   0.00000  0.00000  5.00000
BEGIN_POSITIONS
FIRST_IMAGE
ATOMIC_POSITIONS { bohr }
H   -4.56670009      0.00000000      0.00000000  1  0  0
H    0.00000000      0.00000000      0.00000000  0  0  0
H    1.55776676      0.00000000      0.00000000  1  0  0
LAST_IMAGE
ATOMIC_POSITIONS { bohr }
H   -1.55776676      0.00000000      0.00000000
H    0.00000000      0.00000000      0.00000000
H    4.56670009      0.00000000      0.00000000
END_POSITIONS
END_ENGINE_INPUT
END
