Index: doc/papers/concurrency/Paper.tex
===================================================================
--- doc/papers/concurrency/Paper.tex	(revision 852a2f0628368381b2ab97fb5c68f2ed378a0e48)
+++ doc/papers/concurrency/Paper.tex	(revision 9b4483a06414fb90b146eb02da2afc7b4b771074)
@@ -248,8 +248,8 @@
 }
 
-\newbox\myboxA
-\newbox\myboxB
-\newbox\myboxC
-\newbox\myboxD
+\newsavebox{\myboxA}
+\newsavebox{\myboxB}
+\newsavebox{\myboxC}
+\newsavebox{\myboxD}
 
 \title{\texorpdfstring{Advanced Control-flow and Concurrency in \protect\CFA}{Advanced Control-flow in Cforall}}
@@ -2967,7 +2967,8 @@
 \lstset{language=CFA,moredelim=**[is][\color{red}]{@}{@},deletedelim=**[is][]{`}{`}}
 \begin{cfa}[aboveskip=0pt,belowskip=0pt]
-@coroutine@ C {} c;
-void main( C & ) { while () { @suspend;@ } }
+@coroutine@ C {};
+void main( C & ) { for () { @suspend;@ } }
 int main() { // coroutine test
+	C c;
 	BENCH( for ( N ) { @resume( c );@ } )
 	sout | result;
@@ -2989,5 +2990,5 @@
 \multicolumn{1}{@{}c}{} & \multicolumn{1}{c}{Median} &\multicolumn{1}{c}{Average} & \multicolumn{1}{c@{}}{Std Dev} \\
 C function			& 1.8		& 1.8		& 0.0	\\
-\CFA generator		& 1.8		& 1.8		& 0.1	\\
+\CFA generator		& 1.8		& 2.0		& 0.3	\\
 \CFA coroutine		& 32.5		& 32.9		& 0.8	\\
 \CFA thread			& 93.8		& 93.6		& 2.2	\\