Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
25	25	1 : View List ['gmtsub']	25	25	localsub	call site: 00178	/src/tarantool/src/lib/tzcode/localtime.c:1431
2	2	1 : View List ['__errno_location']	2	2	tzloadbody	call site: 00109	/src/tarantool/src/lib/tzcode/localtime.c:398
2	2	1 : View List ['update_tzname_etc']	2	2	localsub	call site: 00187	/src/tarantool/src/lib/tzcode/localtime.c:1504
0	56	1 : View List ['mh_strnptr_put']	0	56	mh_strnptr_put	call site: 00000	/src/tarantool/src/lib/salad/mhash.h:319
0	6	1 : View List ['getnum']	0	6	getsecs	call site: 00129	/src/tarantool/src/lib/tzcode/localtime.c:866
0	0	None	26	467	tzloadbody	call site: 00098	/src/tarantool/src/lib/tzcode/localtime.c:346
0	0	None	26	467	tzloadbody	call site: 00098	/src/tarantool/src/lib/tzcode/localtime.c:352
0	0	None	4	439	tzloadbody	call site: 00119	/src/tarantool/src/lib/tzcode/localtime.c:489
0	0	None	4	439	tzloadbody	call site: 00119	/src/tarantool/src/lib/tzcode/localtime.c:493
0	0	None	4	439	tzloadbody	call site: 00122	/src/tarantool/src/lib/tzcode/localtime.c:544
0	0	None	4	439	tzloadbody	call site: 00122	/src/tarantool/src/lib/tzcode/localtime.c:556
0	0	None	4	439	tzloadbody	call site: 00122	/src/tarantool/src/lib/tzcode/localtime.c:570

Fuzzer calltree


         LLVMFuzzerTestOneInput

[function] [call site] 00000


           calloc

[call site] 00001


           alloc_failure

[function] [call site] 00002


             fprintf

[call site] 00003


             exit

[call site] 00004


           datetime_parse_full

[function] [call site] 00005


             tnt_dt_parse_iso_date

[function] [call site] 00006


               count_delims

[function] [call site] 00007


               count_digits

[function] [call site] 00008


               parse_number

[function] [call site] 00009


               parse_number

[function] [call site] 00010


               parse_number

[function] [call site] 00011


               parse_number

[function] [call site] 00012


               parse_number

[function] [call site] 00013


               parse_number

[function] [call site] 00014


               parse_number

[function] [call site] 00015


               parse_number

[function] [call site] 00016


               parse_number

[function] [call site] 00017


               count_digits

[function] [call site] 00018


               parse_number

[function] [call site] 00019


               parse_number

[function] [call site] 00020


               parse_number

[function] [call site] 00021


               parse_number

[function] [call site] 00022


               count_digits

[function] [call site] 00023


               parse_number

[function] [call site] 00024


               parse_number

[function] [call site] 00025


               parse_number

[function] [call site] 00026


               count_digits

[function] [call site] 00027


               count_digits

[function] [call site] 00028


               parse_number

[function] [call site] 00029


               parse_number

[function] [call site] 00030


               count_digits

[function] [call site] 00031


               parse_number

[function] [call site] 00032


               parse_number

[function] [call site] 00033


               dt_from_yd_checked

[function] [call site] 00034


                 dt64_from_yd

[function] [call site] 00035


                   tnt_dt_days_in_year

[function] [call site] 00036


                     tnt_dt_leap_year

[function] [call site] 00037


                 __assert_fail

[call site] 00038


               tnt_dt_from_ymd_checked

[function] [call site] 00039


                 tnt_dt_days_in_month

[function] [call site] 00040


                   tnt_dt_leap_year

[function] [call site] 00041


                 dt_from_yd_checked

[function] [call site] 00042


               dt_from_yqd_checked

[function] [call site] 00043


                 tnt_dt_days_in_quarter

[function] [call site] 00044


                   tnt_dt_leap_year

[function] [call site] 00045


                 dt_from_yd_checked

[function] [call site] 00046


               dt_from_ywd_checked

[function] [call site] 00047


                 tnt_dt_weeks_in_year

[function] [call site] 00048


                   tnt_dt_leap_year

[function] [call site] 00049


                 dt64_from_yd

[function] [call site] 00050


                 __assert_fail

[call site] 00051


                 tnt_dt_dow

[function] [call site] 00052


                   __assert_fail

[call site] 00053


                   __assert_fail

[call site] 00054


             tnt_dt_parse_iso_time

[function] [call site] 00055


               tnt_dt_parse_iso_time_extended

[function] [call site] 00056


                 count_digits

[function] [call site] 00057


                 parse_number

[function] [call site] 00058


                 count_digits

[function] [call site] 00059


                 parse_number

[function] [call site] 00060


                 count_digits

[function] [call site] 00061


                 parse_number

[function] [call site] 00062


                 parse_fraction_digits

[function] [call site] 00063


                   count_digits

[function] [call site] 00064


                   parse_number

[function] [call site] 00065


               tnt_dt_parse_iso_time_basic

[function] [call site] 00066


                 count_digits

[function] [call site] 00067


                 parse_number

[function] [call site] 00068


                 parse_number

[function] [call site] 00069


                 parse_number

[function] [call site] 00070


                 parse_number

[function] [call site] 00071


                 parse_number

[function] [call site] 00072


                 parse_number

[function] [call site] 00073


                 parse_fraction_digits

[function] [call site] 00074


             dt_epoch

[function] [call site] 00075


               tnt_dt_rdn

[function] [call site] 00076


             parse_tz_suffix

[function] [call site] 00077


               timezone_epoch_lookup

[function] [call site] 00078


                 timezone_raw_lookup

[function] [call site] 00079


                   char_span_alpha

[function] [call site] 00080


                     __ctype_b_loc

[call site] 00081


                     __ctype_b_loc

[call site] 00082


                   bsearch

[call site] 00083


                   compare_zones

[function] [call site] 00084


                     strcasecmp

[call site] 00085


                   __assert_fail

[call site] 00086


                 __assert_fail

[call site] 00087


                 timezone_alloc

[function] [call site] 00088


                   __assert_fail

[call site] 00089


                   strcmp

[call site] 00090


                   tzfree

[function] [call site] 00091


                   tzalloc

[function] [call site] 00092


                     zoneinit

[function] [call site] 00093


                       init_ttinfo

[function] [call site] 00094


                       strlcpy

[function] [call site] 00095


                         strlen

[call site] 00096


                       tzload

[function] [call site] 00097


                         tzloadbody

[function] [call site] 00098


                           strlen

[call site] 00099


                           strlcpy

[function] [call site] 00100


                           strchr

[call site] 00101


                           access

[call site] 00102


                           __errno_location

[call site] 00103


                           open64

[call site] 00104


                           __errno_location

[call site] 00105


                           read

[call site] 00106


                           __errno_location

[call site] 00107


                           close

[call site] 00108


                           close

[call site] 00109


                           __errno_location

[call site] 00110


                           detzcode

[function] [call site] 00111


                           detzcode

[function] [call site] 00112


                           detzcode

[function] [call site] 00113


                           detzcode

[function] [call site] 00114


                           detzcode

[function] [call site] 00115


                           detzcode

[function] [call site] 00116


                           detzcode

[function] [call site] 00117


                           detzcode64

[function] [call site] 00118


                           detzcode

[function] [call site] 00119


                           detzcode

[function] [call site] 00120


                           detzcode64

[function] [call site] 00121


                           detzcode

[function] [call site] 00122


                           tzparse

[function] [call site] 00123


                             getqzname

[function] [call site] 00124


                             getzname

[function] [call site] 00125


                             getoffset

[function] [call site] 00126


                               getsecs

[function] [call site] 00127


                                 getnum

[function] [call site] 00128


                                 getnum

[function] [call site] 00129


                                 getnum

[function] [call site] 00130


                             tzload

[function] [call site] 00131


                             getqzname

[function] [call site] 00132


                             getzname

[function] [call site] 00133


                             getoffset

[function] [call site] 00134


                             getrule

[function] [call site] 00135


                               getnum

[function] [call site] 00136


                               getnum

[function] [call site] 00137


                               getnum

[function] [call site] 00138


                               getnum

[function] [call site] 00139


                               getnum

[function] [call site] 00140


                               getoffset

[function] [call site] 00141


                             getrule

[function] [call site] 00142


                             init_ttinfo

[function] [call site] 00143


                             init_ttinfo

[function] [call site] 00144


                             increment_overflow_time

[function] [call site] 00145


                             increment_overflow_time

[function] [call site] 00146


                             increment_overflow

[function] [call site] 00147


                             increment_overflow

[function] [call site] 00148


                             transtime

[function] [call site] 00149


                             transtime

[function] [call site] 00150


                             increment_overflow_time

[function] [call site] 00151


                             increment_overflow_time

[function] [call site] 00152


                             increment_overflow

[function] [call site] 00153


                             increment_overflow_time

[function] [call site] 00154


                             init_ttinfo

[function] [call site] 00155


                             init_ttinfo

[function] [call site] 00156


                             init_ttinfo

[function] [call site] 00157


                           strcmp

[call site] 00158


                           strlen

[call site] 00159


                           strlcpy

[function] [call site] 00160


                           leapcorr

[function] [call site] 00161


                           increment_overflow_time

[function] [call site] 00162


                           typesequiv

[function] [call site] 00163


                             strcmp

[call site] 00164


                           typesequiv

[function] [call site] 00165


                           ttunspecified

[function] [call site] 00166


                             memcmp

[call site] 00167


                       tzparse

[function] [call site] 00168


                       scrub_abbrs

[function] [call site] 00169


                         strchr

[call site] 00170


                         strlen

[call site] 00171


                         strcmp

[call site] 00172


                     __errno_location

[call site] 00173


                   strlen

[call site] 00174


                   __assert_fail

[call site] 00175


                   strlcpy

[function] [call site] 00176


                 tnt_localtime_rz

[function] [call site] 00177


                   localsub

[function] [call site] 00178


                     gmtsub

[function] [call site] 00179


                       timesub

[function] [call site] 00180


                         leaps_thru_end_of

[function] [call site] 00181


                           leaps_thru_end_of_nonneg

[function] [call site] 00182


                           leaps_thru_end_of_nonneg

[function] [call site] 00183


                         __errno_location

[call site] 00184


                         leaps_thru_end_of

[function] [call site] 00185


                         leaps_thru_end_of

[function] [call site] 00186


                     localsub

[function] [call site] 00187


                       timesub

[function] [call site] 00188


                       update_tzname_etc

[function] [call site] 00189


               __assert_fail

[call site] 00190


               timezone_index

[function] [call site] 00191


               tnt_dt_parse_iso_zone_lenient

[function] [call site] 00192


                 tnt_dt_parse_iso_zone_lenient

[function] [call site] 00193


                   tnt_dt_parse_iso_zone_lenient

[function] [call site] 00194


                     count_digits

[function] [call site] 00195


                     parse_number

[function] [call site] 00196


                     parse_number

[function] [call site] 00197


                     parse_number

[function] [call site] 00198


                     parse_number

[function] [call site] 00199


                     count_digits

[function] [call site] 00200


                     parse_number

[function] [call site] 00201


               __assert_fail

[call site] 00202


             dt_epoch

[function] [call site] 00203