[SOAPdenovo] coverage cut off

[syintel87]

Hello.
While running SOAPdenovo assembler, I have a question about parameter setting.

What I want to do are set different coverage cut offs and compare the results.
So the commands that I used are

srun SOAPdenovo-127mer all -s chitwood1.config -K 127 -o 127mer10c [B]-c 10[/B] -V >127mer10c.out 2>&1 &
srun SOAPdenovo-127mer all -s chitwood1.config -K 127 -o 127mer15c [B]-c 15[/B] -V >127mer15c.out 2>&1 &
srun SOAPdenovo-127mer all -s chitwood1.config -K 127 -o 127merDf [B]-c 4.6[/B] -V >127merDf.out 2>&1 &

However, all three running gave me exactly the same results.
(In case of Velvet and ABySS, they gave the different results.)

My questions are
- Is the option "-c" not for coverage cut off?
- If not, what option do I have to use to set a particular coverage cut off?

Thanks in advance.