Algorithm on datagen-9_2-zf fails validation

[GongChangYan]

15:07 [INFO ] The execution process finished within 45 seconds.
15:07 [DEBUG] [Runner r628276] => Counted 434943376 lines of outputs at /ldbc_data/output/r628276-BFS-datagen-9_2-zf/r628276-BFS-datagen-9_2-zf.
15:07 [DEBUG] [Runner r628276] => Validating contents of '/ldbc_data/output/r628276-BFS-datagen-9_2-zf'...
15:07 [DEBUG] [Runner r628276] => Memory (free/total/max) = 1013.96M / 1590.00M / 327680.00M
15:07 [DEBUG] [Runner r628276] => Parsing file/directory /ldbc_data/datagen-9_2-zf-BFS.
15:08 [DEBUG] [Runner r628276] => Parsed 100000000 lines from datagen-9_2-zf-BFS.
15:08 [DEBUG] [Runner r628276] => Memory (free/total/max) = 9111.94M / 11593.50M / 327680.00M
15:09 [DEBUG] [Runner r628276] => Parsed 200000000 lines from datagen-9_2-zf-BFS.
15:09 [DEBUG] [Runner r628276] => Memory (free/total/max) = 13826.47M / 22996.50M / 327680.00M
15:11 [DEBUG] [Runner r628276] => Parsed 300000000 lines from datagen-9_2-zf-BFS.
15:11 [DEBUG] [Runner r628276] => Memory (free/total/max) = 29403.75M / 44050.50M / 327680.00M
15:12 [DEBUG] [Runner r628276] => Parsed 400000000 lines from datagen-9_2-zf-BFS.
15:12 [DEBUG] [Runner r628276] => Memory (free/total/max) = 16050.54M / 48991.50M / 327680.00M
15:14 [DEBUG] [Runner r628276] => Parsed 434943376 lines from datagen-9_2-zf-BFS.
15:14 [DEBUG] [Runner r628276] => Parsing file/directory /ldbc_data/output/r628276-BFS-datagen-9_2-zf.
15:15 [DEBUG] [Runner r628276] => Parsed 100000000 lines from r628276-BFS-datagen-9_2-zf.
15:15 [DEBUG] [Runner r628276] => Memory (free/total/max) = 75113.25M / 99592.00M / 327680.00M
15:16 [DEBUG] [Runner r628276] => Parsed 200000000 lines from r628276-BFS-datagen-9_2-zf.
15:16 [DEBUG] [Runner r628276] => Memory (free/total/max) = 58149.76M / 107643.50M / 327680.00M
15:18 [DEBUG] [Runner r628276] => Parsed 300000000 lines from r628276-BFS-datagen-9_2-zf.
15:18 [DEBUG] [Runner r628276] => Memory (free/total/max) = 30110.38M / 120110.50M / 327680.00M
15:19 [DEBUG] [Runner r628276] => Parsed 400000000 lines from r628276-BFS-datagen-9_2-zf.
15:19 [DEBUG] [Runner r628276] => Memory (free/total/max) = 60698.42M / 129947.50M / 327680.00M
15:21 [DEBUG] [Runner r628276] => Parsed 434943376 lines from r628276-BFS-datagen-9_2-zf.
15:21 [DEBUG] [Runner r628276] => Failed to validate benchmark run.
15:21 [DEBUG] [Runner r628276] => Report failures (VAL) of r628276 at akka.tcp://executor-service@localhost:8011/user/executor-service.
15:21 [ERROR] A benchmark failure (VAL) is caught by the runner.
15:21 [DEBUG] Terminating benchmark run process

Machine: 128Core(vCPU) 256 GiB
commit: c55b6b9

When I tested the XL data, I found that all algorithms would fail in validation on the dataset datagen-9_2-zf, but other datasets of XL were fine.
If the result of the algorithm is incorrect, the log should contain "id: Expected xxx, Actual xxx" to prin the incorrect results. but there is actually no valid information. What could be the reason for this error?