this report has been filed here:

https://bugs.edge.launchpad.net/ubuntu/+source/poppler/+bug/376799

"
Here is the minimal command to reproduce the crash:

  pdftotext -q nopgbrk 2001_these_mezouar.pdf

Without the "-q nopgbrk" the crash does not happen.
"

File:

http://launchpadlibrarian.net/26748206/2001_these_mezouar.pdf

Stacktrace:

"#0  0x41685e84 in Lexer::lookChar (this=<value optimized out>) at Lexer.cc:148
No locals.
#1  0x41686762 in Lexer::getObj (this=<value optimized out>, 
    obj=<value optimized out>, objNum=<value optimized out>) at Lexer.cc:193
	p = <value optimized out>
	c = <value optimized out>
	c2 = <value optimized out>
	comment = <value optimized out>
	neg = <value optimized out>
	done = <value optimized out>
	numParen = <value optimized out>
	xi = <value optimized out>
	xf = <value optimized out>
	scale = <value optimized out>
	s = <value optimized out>
	n = <value optimized out>
	m = <value optimized out>
#2  0x41694727 in Parser::shift (this=<value optimized out>, objNum=)
    at Parser.cc:250
No locals.
#3  0x41694b3a in Parser::getObj (this=<value optimized out>, 
    obj=<value optimized out>, fileKey=<value optimized out>, 
    encAlgorithm=<value optimized out>, keyLength=<value optimized out>, 
    objNum=<value optimized out>, objGen=<value optimized out>)
    at Parser.cc:156
	key = <value optimized out>
	str = <value optimized out>
	obj2 = $2 = -99
.
Thread 1 (process 8628):
#0  0x41685e84 in Lexer::lookChar (this=<value optimized out>) at Lexer.cc:148
No locals.
#1  0x41686762 in Lexer::getObj (this=<value optimized out>, 
    obj=<value optimized out>, objNum=<value optimized out>) at Lexer.cc:193
	p = <value optimized out>
	c = <value optimized out>
	c2 = <value optimized out>
	comment = <value optimized out>
	neg = <value optimized out>
	done = <value optimized out>
	numParen = <value optimized out>
	xi = <value optimized out>
	xf = <value optimized out>
	scale = <value optimized out>
	s = <value optimized out>
	n = <value optimized out>
	m = <value optimized out>
#2  0x41694727 in Parser::shift (this=<value optimized out>, objNum=)
    at Parser.cc:250
No locals.
#3  0x41694b3a in Parser::getObj (this=<value optimized out>, 
    obj=<value optimized out>, fileKey=<value optimized out>, 
    encAlgorithm=<value optimized out>, keyLength=<value optimized out>, 
    objNum=<value optimized out>, objGen=<value optimized out>)
    at Parser.cc:156
	key = <value optimized out>
	str = <value optimized out>
	obj2 = $3 = -99
"