[1581569070:560690][17116:0x7fad70499700], t, file:wt.wt, WT_CURSOR.reset: __wt_page_out, 70: !__wt_page_is_modified(page)
[1581569070:560748][17116:0x7fad70499700], t, file:wt.wt, WT_CURSOR.reset: __wt_abort, 28: aborting WiredTiger library 

(gdb) bt
#0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
#1  0x00007fad7b9d4801 in __GI_abort () at abort.c:79
#2  0x000000000073c194 in __wt_abort (session=0x7fad7d018540) at ../src/os_common/os_abort.c:30
#3  0x0000000000a00925 in __wt_page_out (session=0x7fad7d018540, pagep=0x60e000044d00) at ../src/btree/bt_discard.c:70
#4  0x0000000000a00519 in __wt_ref_out (session=0x7fad7d018540, ref=0x60e000044d00) at ../src/btree/bt_discard.c:41
#5  0x0000000000698ffb in __evict_page_dirty_update (session=0x7fad7d018540, ref=0x60e000044d00, evict_flags=4)
    at ../src/evict/evict_page.c:347
#6  0x0000000000694cf8 in __wt_evict (session=0x7fad7d018540, ref=0x60e000044d00, previous_state=3, flags=4)
    at ../src/evict/evict_page.c:192
#7  0x0000000000693343 in __wt_page_release_evict (session=0x7fad7d018540, ref=0x60e000044d00, flags=0)
    at ../src/evict/evict_page.c:80
#8  0x00000000009ea825 in __wt_page_release (session=0x7fad7d018540, ref=0x60e000044d00, flags=0) at ../src/include/btree.i:1518
#9  0x00000000009d87a1 in __cursor_reset (cbt=0x618001531480) at ../src/include/cursor.i:222
#10 0x00000000009d82a8 in __wt_btcur_reset (cbt=0x618001531480) at ../src/btree/bt_cursor.c:492
#11 0x0000000000616766 in __curfile_reset (cursor=0x618001531480) at ../src/cursor/cur_file.c:172
#12 0x000000000050a5c7 in ops (arg=0x62f0000fc400) at ../../../test/format/ops.c:945
#13 0x00007fad7c9836db in start_thread (arg=0x7fad70499700) at pthread_create.c:463
#14 0x00007fad7bab588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 

############################################
#  RUN PARAMETERS
############################################
abort=0
alter=0
assert_commit_timestamp=0
assert_read_timestamp=0
auto_throttle=1
backups=0
bitcnt=3
bloom=1
bloom_bit_count=43
bloom_hash_count=21
bloom_oldest=0
cache=213
cache_minimum=20
checkpoints=off
checkpoint_log_size=65
checkpoint_wait=84
checksum=uncompressed
chunk_size=2
compaction=0
compression=none
data_extend=0
data_source=table
delete_pct=21
dictionary=0
direct_io=0
encryption=none
evict_max=2
file_type=row-store
firstfit=0
huffman_key=0
huffman_value=0
independent_thread_rng=1
in_memory=1
insert_pct=67
internal_key_truncation=1
internal_page_max=14
isolation=random
key_gap=7
key_max=32
key_min=26
leaf_page_max=13
leak_memory=0
logging=0
logging_archive=0
logging_compression=none
logging_file_max=238070
logging_prealloc=1
lsm_worker_threads=3
major_timeout=0
memory_page_max=3
merge_max=4
mmap=1
modify_pct=0
ops=0
prefix_compression=1
prefix_compression_min=4
prepare=0
quiet=1
random_cursor=0
read_pct=0
rebalance=0
repeat_data_pct=82
reverse=0
rows=1000000
runs=1
salvage=0
split_pct=75
statistics=0
statistics_server=0
threads=13
timer=4
timing_stress_aggressive_sweep=0
timing_stress_checkpoint=0
timing_stress_hs_sweep=0
timing_stress_split_1=0
timing_stress_split_2=0
timing_stress_split_3=0
timing_stress_split_4=0
timing_stress_split_5=0
timing_stress_split_6=0
timing_stress_split_7=0
timing_stress_split_8=0
transaction_timestamps=0
transaction-frequency=14
truncate=1
value_max=80
value_min=10
verify=0
wiredtiger_config=
write_pct=12
############################################