└─[15:38]$ ./t -c 6065
t: process 23263 running
[1589434992:16584][23263:0x7f560b73f700], t, file:WiredTigerHS.wt, eviction-server: __rec_append_orig_value, 161: unpack->tw.prepare || (unpack->tw.stop_ts == oldest_upd->start_ts && unpack->tw.stop_txn == oldest_upd->txnid)
[1589434992:16630][23263:0x7f560b73f700], t, file:WiredTigerHS.wt, eviction-server: __wt_abort, 28: aborting WiredTiger library
Aborted (core dumped)

(gdb) p *unpack
$1 = {cell = 0x7f55e938695e, v = 0, data = 0x7f55e938696a, size = 41, __len = 53, prefix = 0 '\000',
  raw = 128 '\200', type = 128 '\200', flags = 0 '\000', tw = {durable_start_ts = 0, start_ts = 0,
    start_txn = 0, durable_stop_ts = 251196, stop_ts = 251196, stop_txn = 171222, prepare = 0 '\000'}}
(gdb) p *oldest_upd
$2 = {txnid = 173057, durable_ts = 253946, start_ts = 253946, next = 0x0, size = 0, type = 4 '\004',
  prepare_state = 0 '\000', flags = 0 '\000', data = 0x7f55e8de0bb7 ""}

 ############################################
#  RUN PARAMETERS: V2
############################################
assert.commit_timestamp=0
assert.read_timestamp=0
backup=1
backup.incremental=off
btree.bitcnt=4
btree.compression=none
btree.dictionary=0
btree.huffman_key=0
btree.huffman_value=0
btree.internal_key_truncation=1
btree.internal_page_max=12
btree.key_gap=13
btree.key_max=24
btree.key_min=24
btree.leaf_page_max=9
btree.memory_page_max=8
btree.prefix_compression=0
btree.prefix_compression_min=5
btree.repeat_data_pct=30
btree.reverse=1
btree.split_pct=89
btree.value_max=733
btree.value_min=11
cache=64
cache.evict_max=1
cache.minimum=20
checkpoint=on
checkpoint.log_size=159
checkpoint.wait=73
disk.checksum=on
disk.data_extend=0
disk.direct_io=0
disk.encryption=none
disk.firstfit=0
disk.mmap=0
disk.mmap_all=0
format.abort=0
format.independent_thread_rng=0
format.major_timeout=0
logging=0
logging.archive=0
logging.compression=none
logging.file_max=432281
logging.prealloc=0
lsm.auto_throttle=1
lsm.bloom=1
lsm.bloom_bit_count=34
lsm.bloom_hash_count=12
lsm.bloom_oldest=0
lsm.chunk_size=2
lsm.merge_max=14
lsm.worker_threads=3
ops.alter=1
ops.compaction=0
ops.pct.delete=10
ops.pct.insert=20
ops.pct.modify=18
ops.pct.read=2
ops.pct.write=50
ops.prepare=1
ops.random_cursor=0
ops.rebalance=1
ops.salvage=1
ops.truncate=1
ops.verify=1
quiet=1
runs=1
runs.in_memory=0
runs.ops=0
runs.rows=1000000
runs.source=table
runs.threads=4
runs.timer=6
runs.type=row-store
statistics=0
statistics.server=0
stress.aggressive_sweep=0
stress.checkpoint=0
stress.hs_sweep=0
stress.split_1=0
stress.split_2=0
stress.split_3=1
stress.split_4=0
stress.split_5=0
stress.split_6=1
stress.split_7=1
stress.split_8=0
transaction.frequency=100
transaction.isolation=snapshot
transaction.timestamps=1
wiredtiger.config=
wiredtiger.rwlock=0
wiredtiger.leak_memory=0
############################################