Veritas Rises on Symantec Merger Report  SAN FRANCISCO (Reuters) - Veritas Software Corp. &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=VRTS.O target=/stocks/quickinfo/fullquote"&gt;VRTS.O&lt;/A&gt;  shares jumped 9 percent on Tuesday on a report that security  software company Symantec Corp. &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=SYMC.O target=/stocks/quickinfo/fullquote"&gt;SYMC.O&lt;/A&gt; would acquire it for  \$13 billion.