OutOfMemoryError when building PDF System Design Description for "big" Simulink Model

Hello, I get an OutOfMemoryError when building a System Design Description in PDF and Word format. I already increased the heap space to maximum in the preferences and called the report generation from the command line. The model is a rapid prototyping model for a electric drivetrain so I can understand it takes much memory. The machine is a 64bit Windows 7 system with 4GB RAM. The MatLab process itself seems not to take more than ~1.5GB even when no other applications are running.

Any suggestions?

Thanks in Advance Torsten Knodt

Document conversion failed. Java exception occurred: java.lang.OutOfMemoryError: Java heap space at org.apache.fop.complexscripts.bidi.DelimitedTextRange.<init>(Unknown Source) at org.apache.fop.fo.FONode.maybeNewRange(Unknown Source) at org.apache.fop.fo.FONode.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.fo.FONode.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.fo.FONode.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.fo.FONode.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.fo.FONode.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.fo.FONode.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.fo.FONode.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.fo.flow.table.Table.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.fo.FONode.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.fo.FONode.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.fo.FONode.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.fo.FONode.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.fo.FONode.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.fo.FONode.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.fo.FONode.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.fo.FONode.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.fo.FONode.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.fo.FONode.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.fo.FONode.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.fo.FONode.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.fo.FONode.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.fo.FONode.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.fo.FONode.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.fo.pagination.PageSequence.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.fo.FONode.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.complexscripts.bidi.BidiResolver.resolveInlineDirectionality(Unknown Source) at org.apache.fop.layoutmgr.PageSequenceLayoutManager.activateLayout(Unknown Source) at org.apache.fop.area.AreaTreeHandler.endPageSequence(Unknown Source) at org.apache.fop.fo.pagination.PageSequence.endOfNode(Unknown Source) at org.apache.fop.fo.FOTreeBuilder$MainFOHandler.endElement(Unknown Source) Error running report Java exception occurred: java.lang.OutOfMemoryError: Java heap space at org.apache.fop.complexscripts.bidi.DelimitedTextRange.<init>(Unknown Source) at org.apache.fop.fo.FONode.maybeNewRange(Unknown Source) at org.apache.fop.fo.FONode.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.fo.FONode.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.fo.FONode.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.fo.FONode.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.fo.FONode.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.fo.FONode.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.fo.FONode.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.fo.flow.table.Table.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.fo.FONode.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.fo.FONode.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.fo.FONode.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.fo.FONode.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.fo.FONode.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.fo.FONode.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.fo.FONode.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.fo.FONode.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.fo.FONode.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.fo.FONode.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.fo.FONode.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.fo.FONode.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.fo.FONode.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.fo.FONode.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.fo.FONode.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.fo.pagination.PageSequence.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.fo.FONode.collectDelimitedTextRanges(Unknown Source) at org.apache.fop.complexscripts.bidi.BidiResolver.resolveInlineDirectionality(Unknown Source) at org.apache.fop.layoutmgr.PageSequenceLayoutManager.activateLayout(Unknown Source) at org.apache.fop.area.AreaTreeHandler.endPageSequence(Unknown Source) at org.apache.fop.fo.pagination.PageSequence.endOfNode(Unknown Source) at org.apache.fop.fo.FOTreeBuilder$MainFOHandler.endElement(Unknown Source)