This is TeX, Version 3.14159 (Web2C 7.4.5) (format=latex 2010.5.6)  8 SEP 2011 16:22
**preamble
(./preamble.tex
LaTeX2e <2001/06/01>
Babel <v3.7h> and hyphenation patterns for american, french, german, ngerman, n
ohyphenation, loaded.

! LaTeX Error: \usepackage before \documentclass.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
 ...                                              
                                                  
l.1 \usepackage{
                amssymb,amsmath,amsthm, verbatim}
? x
 
Here is how much of TeX's memory you used:
 5 strings out of 95847
 188 string characters out of 1195949
 44507 words of memory out of 1000001
 3034 multiletter control sequences out of 10000+50000
 3640 words of font info for 14 fonts, out of 500000 for 1000
 14 hyphenation exceptions out of 1000
 5i,0n,5p,58b,14s stack positions out of 1500i,500n,5000p,200000b,5000s
No pages of output.