I am using Gaussian 09 to obtained optimized molecular structure. Working molecule is of big size having 86 atoms (containing C,H,N,O,S).

Here I have given the .com file information-

Description

%chk=P.chk

%nprocshared=8

%mem=4GB

# opt=calcfc b3lyp/6-311+g(d,p) geom=connectivity

However, I have encoutered the mentioned error. It would be really nice if someone can help me out. Thanks a lot!

The system error message is as following:

Error: segmentation violation

rax 0000000000000000, rbx ffffffffffffffff, rcx ffffffffffffffff

rdx 00000000000004dd, rsp 00007fffd846f338, rbp 00007fffd846f920

rsi 000000000000000b, rdi 00000000000004dd, r8 0000000000000000

r9 00002ad9f962fe50, r10 00007fffd846f0e0, r11 0000000000000202

r12 0000000000000000, r13 0000000000000000, r14 00007fffd846f968

r15 00000000000003e6

--- traceback not available