overwrite last found datapoint

Since the creation crashes, the data of the last point is often incomplete and causes errors later down the pipeline. Overwriting this should alleviate this issue at a reasonable cost.

data/create_syn_data.py

@@ -233,7 +233,7 @@ if __name__ == '__main__':
     else:
         if sys.argv[1] == '--resume':
             try:
-                start = max([int(dir) for dir in os.listdir(out_root) if str.isdigit(dir)]) or 0
+                start = max([int(dir) for dir in os.listdir(out_root) if str.isdigit(dir)]) - 1 or 0
             except:
                 pass