Calabash OutOfMemory Issue

test.xpl

<?xml version="1.0" encoding="UTF-8"?>
<p:declare-step version="1.0" name="test" xmlns:p="http://www.w3.org/ns/xproc"
    xmlns:err="http://www.w3.org/ns/xproc-error" xmlns:c="http://www.w3.org/ns/xproc-step"
    exclude-inline-prefixes="#all" xpath-version="2.0">

    <p:output port="result"/>

    <p:xslt template-name="main">
        <p:input port="source">
            <p:empty/>
        </p:input>
        <p:input port="stylesheet">
            <p:inline>
                <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
                    xmlns:xs="http://www.w3.org/2001/XMLSchema" exclude-result-prefixes="xs"
                    version="2.0">
                    <xsl:template name="main">
                        <doc>
                            <xsl:for-each select="(1 to 4000)">
                                <itemz/>
                            </xsl:for-each>
                        </doc>
                    </xsl:template>

                </xsl:stylesheet>
            </p:inline>
        </p:input>
        <p:input port="parameters">
            <p:empty/>
        </p:input>
    </p:xslt>
    <p:validate-with-relax-ng>
        <p:input port="schema">
            <p:inline>
                <c:data>
                    namespace local = ""
                    start = Doc
                    Doc = element local:doc { Item* }
                    Item = element local:item { text }
                </c:data>
            </p:inline>
        </p:input>
    </p:validate-with-relax-ng>
</p:declare-step>