Internal compiler error

I recently tried version 13.1 and found the nice result that

my attempts at using coarrays

   www.fortran.com/13_heat4.f90   for example

run faster than with 12. That is good news.

Also got the strange result following (Yeah, -v is not

legal, but I usually don't get a compiler error on legal code :-).

Running W7-64 on a 2-core i3 laptop.

$ ifort -v

Intel(R) Visual Fortran Intel(R) 64 Compiler XE for applications running on Inte l(R) 64, Version 13.1.1.171 Build 20130313 Copyright (C) 1985-2013 Intel Corporation.  All rights reserved.

ifort: command line warning #10006: ignoring unknown option '/v'

ifort: internal error: Assertion failed (shared/driver/driver.c, line 370)