### CONTEXT (Previous Events):
<system_output timestamp="2546.707437">Reading state information...
</system_output>
<system_output timestamp="2546.915752">Reading extended state information...
</system_output>
<system_output timestamp="2546.933657">Initializing package states...
</system_output>
<system_output timestamp="2547.466312">Writing extended state information...
</system_output>
<system_output timestamp="2547.720656">Building tag database...
</system_output>
<system_output timestamp="2548.274609">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="2548.344026">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="2548.345611">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="2548.399653">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="2548.446788">Reading package lists...
</system_output>
<system_output timestamp="2548.699288">Building dependency tree...
</system_output>
<system_output timestamp="2548.702684">Reading state information...
</system_output>
<system_output timestamp="2548.89857">Reading extended state information...
</system_output>
<system_output timestamp="2548.920679">Initializing package states...
</system_output>

### TARGET LINE (Extract and Classify THIS Timestamp):
<system_output timestamp="2549.497847">Writing extended state information...
</system_output>

Answer: 2549.497847, old event