&control
   calculation     = 'vc-relax'
   tstress         = .true.
   tprnfor         = .true.
   forc_conv_thr   = 1.0D-3
/

&system
   ibrav           = 4 
   celldm(1)       = 4.64117
   celldm(3)       = 2.72640
   nat             = 4 
   ntyp            = 1
   occupations     = 'fixed'
   smearing        = 'methfessel-paxton'
   degauss         = 0.02
   ecutwfc         = 30.0
   ecutrho         = 180.0
   input_dft  	   = 'vdW-DF3-opt1'
/

&electrons
   conv_thr        = 1.0d-8
/

&ions
/

&cell
   cell_dofree     = 'z'
/

ATOMIC_SPECIES
C  12.00   C.pbe-rrkjus.UPF

ATOMIC_POSITIONS {crystal}
C  0.0000000000    0.0000000000    0.0000000000
C  0.3333333333    0.6666666667    0.0000000000
C  0.0000000000    0.0000000000    0.5000000000
C  0.6666666667    0.3333333333    0.5000000000 

K_POINTS automatic
4 4 4 1 1 1
