Calculation problem for Benzene

[PhyChemKang]

Hi guys, I am a begginer of VASP program

So, i think this is a simple problem for you guys

Actually, i want to caclulate the bezene structure but the

calculation wasn't running. Also, there is no error message

The contents of POSCAR file is following as

----------------------------------------------------------------------
C6H6 D6h
5
2 0 0
0 2 0
0 0 2
6 6
Cartesian
0.000000000 0.00 0.00
0.000000000 1.00 0.00
1.299038106 1.75 0.00
1.125000000 1.25 0.00
1.299038106 3.25 0.00
1.125000000 3.75 0.00
0.000000000 4.00 0.00
0.000000000 5.00 0.00
-1.299038106 3.25 0.00
-1.125000000 3.75 0.00
-1.299038106 1.75 0.00
-1.125000000 1.25 0.00
------------------------------------------------------------------
When i do vasp calculation, i can see this message
------------------------------------------------------------------
[jin@node27 Benzene]$ /opt/mpich/intel/bin/mpirun -np 2 -machinefile machine vasp
/home/jin/.bashrc: line 22: /opt/gaussian/g03/bsd/g03.profile: Permission denied
running on 2 nodes
distr: one band on 1 nodes, 2 groups
vasp.5.2.2 15Apr09 complex
POSCAR found : 2 types and 12 ions
LDA part: xc-table for Ceperly-Alder, standard interpolation

-----------------------------------------------------------------------------
| |
| W W AA RRRRR N N II N N GGGG !!! |
| W W A A R R NN N II NN N G G !!! |
| W W A A R R N N N II N N N G !!! |
| W WW W AAAAAA RRRRR N N N II N N N G GGG ! |
| WW WW A A R R N NN II N NN G G |
| W W A A R R N N II N N GGGG !!! |
| |
| The distance between some ions is very small |
| please check the nearest neigbor list in the OUTCAR file |
| I HOPE YOU KNOW, WHAT YOU ARE DOING |
| |
-----------------------------------------------------------------------------

POSCAR, INCAR and KPOINTS ok, starting setup
WARNING: small aliasing (wrap around) errors must be expected
FFT: planning ...( 1 )
reading WAVECAR
WARNING: random wavefunctions but no delay for mixing, default for NELMDL
entering main loop
N E dE d eps ncg rms rms(c)
/opt/mpich/intel/bin/mpirun.ch_p4: line 243: 9886 Segmentation fault "/home/jin/moon/Benzene/vasp" -p4pg "/home/jin/moon/Benzene/PI9802" -p4wd "/home/jin/moon/Benzene"
-------------------------------------------------------------------

Could you guys help me how do i solve this problem..

[yuxiao_zihan]

you should check the POSCAR again. The structure is wrong