We have used paid unlimited sitemap generator tool, also Pages added to sitemap: 7371 but it was stopped to generate the xml sitemap at link depth 3 (level 3) for our site, so how it can fix it?
My crawling stop in this point
Links depth: 3
Current page: women's_wedding_bands/plain/dome/dome_comfort_fit_wedding_ring_band_14k_yellow_gold_2mm/pid/350/296
Pages added to sitemap: 7371
Pages scanned: 7385 (1,129,010.0 KB)
Pages left: 123207 (+ 8979 queued for the next depth level)
Time passed: 2:30:19
Time left: 41:47:53
Memory usage: 111,858.0 Kb
Resuming the last session (last updated: 2012-06-18 12:08:26)
Also At debug log - it shows (memory: 112,047.4 Kb)
(saving dump) and stop
we have also increased memory already but not solve the issue for that.
Please do the needful ASAP for that.