Fix windows

snakecnv/detection.snk

@@ -59,7 +59,7 @@ def get_chr_batches(ref_file, chr):
         groups.append((start, end))
         if len_chr + 1 == end:
             break
-        start = end - 9999
+        start = end - 49999
         end = min(start + 9999999, len_chr + 1)
     last_group = (start, len_chr + 1)
     if last_group not in groups: