Fuzz introspector: read_edgelist_fuzzer
For issues and ideas: https://github.com/ossf/fuzz-introspector/issues

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
20 20 1 :

['igraph_error_handler_abort']

20 20 igraph_error call site: 00018 /src/igraph/src/core/error.c:170
3 127 5 :

['igraph_vector_int_resize', 'igraph_error', 'igraph_i_attribute_add_vertices', 'IGRAPH_FINALLY_EXIT', 'IGRAPH_FINALLY_ENTER']

3 154 igraph_add_vertices call site: 00135 /src/igraph/src/graph/type_indexededgelist.c:412
3 96 3 :

['igraph_i_attribute_add_edges', 'igraph_vector_int_resize', 'igraph_error']

3 294 igraph_add_edges call site: 00217 /src/igraph/src/graph/type_indexededgelist.c:312
2 2 1 :

['calloc']

10 81 igraph_i_parse_integer call site: 00057 /src/igraph/src/io/parse_utils.c:65
0 25 1 :

['igraph_errorf']

0 25 igraph_add_edges call site: 00179 /src/igraph/src/graph/type_indexededgelist.c:266
0 25 1 :

['igraph_errorf']

0 25 igraph_add_vertices call site: 00124 /src/igraph/src/graph/type_indexededgelist.c:392
0 23 1 :

['igraph_error']

0 23 igraph_vector_int_init call site: 00017 /src/igraph/src/core/vector.pmt:145
0 23 1 :

['igraph_error']

0 23 igraph_i_fskip_whitespace call site: 00039 /src/igraph/src/io/parse_utils.c:165
0 16 1 :

['igraph_vector_int_null']

0 16 igraph_i_create_start_vectors call site: 00224 /src/igraph/src/graph/type_indexededgelist.c:1064
0 0 None 17 17 IGRAPH_FINALLY_REAL call site: 00107 /src/igraph/src/core/error.c:249
0 0 None 13 13 IGRAPH_FINALLY_ENTER call site: 00136 /src/igraph/src/core/error.c:307
0 0 None 3 1306 igraph_add_edges call site: 00177 /src/igraph/src/graph/type_indexededgelist.c:260

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 igraph_set_error_handler [function] [call site] 00001
1 igraph_set_warning_handler [function] [call site] 00002
1 sprintf [call site] 00003
1 fopen [call site] 00004
1 fwrite [call site] 00005
1 fclose [call site] 00006
1 fopen [call site] 00007
1 remove [call site] 00008
1 igraph_read_graph_edgelist [function] [call site] 00009
2 igraph_vector_int_init [function] [call site] 00010
3 igraph_fatal [function] [call site] 00011
4 igraph_fatal_handler_abort [function] [call site] 00012
5 fprintf [call site] 00013
5 igraph_abort [function] [call site] 00014
6 abort [call site] 00015
4 igraph_abort [function] [call site] 00016
3 calloc [call site] 00017
3 igraph_error [function] [call site] 00018
4 igraph_error_handler_abort [function] [call site] 00019
5 igraph_strerror [function] [call site] 00020
6 igraph_fatalf [function] [call site] 00021
7 vsnprintf [call site] 00022
7 igraph_fatal [function] [call site] 00023
5 fprintf [call site] 00024
5 igraph_abort [function] [call site] 00025
2 igraph_error [function] [call site] 00026
2 igraph_vector_int_reserve [function] [call site] 00027
3 igraph_fatal [function] [call site] 00028
3 igraph_fatal [function] [call site] 00029
3 igraph_fatal [function] [call site] 00030
3 igraph_vector_int_capacity [function] [call site] 00031
3 realloc [call site] 00032
3 igraph_error [function] [call site] 00033
2 igraph_error [function] [call site] 00034
2 igraph_allow_interruption [function] [call site] 00035
2 igraph_i_fskip_whitespace [function] [call site] 00036
3 fgetc [call site] 00037
3 __ctype_b_loc [call site] 00038
3 ferror [call site] 00039
3 igraph_error [function] [call site] 00040
3 ungetc [call site] 00041
2 igraph_error [function] [call site] 00042
2 feof [call site] 00043
2 igraph_i_fget_integer [function] [call site] 00044
3 igraph_i_fskip_whitespace [function] [call site] 00045
3 igraph_error [function] [call site] 00046
3 fgetc [call site] 00047
3 __ctype_b_loc [call site] 00048
3 ungetc [call site] 00049
3 igraph_errorf [function] [call site] 00050
4 vsnprintf [call site] 00051
4 igraph_error [function] [call site] 00052
3 ferror [call site] 00053
3 igraph_error [function] [call site] 00054
3 igraph_error [function] [call site] 00055
3 igraph_i_parse_integer [function] [call site] 00056
4 igraph_error [function] [call site] 00057
4 calloc [call site] 00058
4 igraph_error [function] [call site] 00059
4 strncpy [call site] 00060
4 __errno_location [call site] 00061
4 strtoll [call site] 00062
4 __errno_location [call site] 00063
4 igraph_error [function] [call site] 00064
4 igraph_errorf [function] [call site] 00065
3 igraph_error [function] [call site] 00066
2 igraph_error [function] [call site] 00067
2 igraph_i_fget_integer [function] [call site] 00068
2 igraph_error [function] [call site] 00069
2 igraph_error [function] [call site] 00070
2 igraph_vector_int_push_back [function] [call site] 00071
3 igraph_fatal [function] [call site] 00072
3 igraph_fatal [function] [call site] 00073
3 igraph_vector_int_size [function] [call site] 00074
4 igraph_fatal [function] [call site] 00075
4 igraph_fatal [function] [call site] 00076
3 igraph_error [function] [call site] 00077
3 igraph_vector_int_reserve [function] [call site] 00078
3 igraph_error [function] [call site] 00079
2 igraph_error [function] [call site] 00080
2 igraph_vector_int_push_back [function] [call site] 00081
2 igraph_error [function] [call site] 00082
2 igraph_create [function] [call site] 00083
3 igraph_vector_int_size [function] [call site] 00084
3 igraph_vector_int_size [function] [call site] 00085
3 igraph_error [function] [call site] 00086
3 igraph_vector_int_isininterval [function] [call site] 00087
4 igraph_fatal [function] [call site] 00088
4 igraph_fatal [function] [call site] 00089
3 igraph_error [function] [call site] 00090
3 igraph_empty [function] [call site] 00091
4 igraph_empty_attrs [function] [call site] 00092
5 igraph_vector_int_init [function] [call site] 00093
5 igraph_error [function] [call site] 00094
5 igraph_vector_int_init [function] [call site] 00095
5 igraph_error [function] [call site] 00096
5 igraph_vector_int_init [function] [call site] 00097
5 igraph_error [function] [call site] 00098
5 igraph_vector_int_init [function] [call site] 00099
5 igraph_error [function] [call site] 00100
5 igraph_vector_int_init [function] [call site] 00101
5 igraph_error [function] [call site] 00102
5 igraph_vector_int_init [function] [call site] 00103
5 igraph_error [function] [call site] 00104
5 calloc [call site] 00105
5 igraph_error [function] [call site] 00106
5 IGRAPH_FINALLY_REAL [function] [call site] 00107
6 igraph_i_reset_finally_stack [function] [call site] 00108
6 igraph_fatalf [function] [call site] 00109
6 igraph_i_reset_finally_stack [function] [call site] 00110
6 igraph_fatalf [function] [call site] 00111
5 igraph_free [function] [call site] 00112
5 igraph_i_property_cache_init [function] [call site] 00113
5 igraph_error [function] [call site] 00114
5 IGRAPH_FINALLY_REAL [function] [call site] 00115
5 igraph_i_property_cache_destroy [function] [call site] 00116
5 igraph_i_attribute_init [function] [call site] 00117
5 igraph_error [function] [call site] 00118
5 igraph_add_vertices [function] [call site] 00119
6 igraph_ecount [function] [call site] 00120
7 igraph_vector_int_size [function] [call site] 00121
6 igraph_vcount [function] [call site] 00122
6 igraph_error [function] [call site] 00123
6 igraph_errorf [function] [call site] 00124
6 igraph_errorf [function] [call site] 00125
6 igraph_vector_int_reserve [function] [call site] 00126
6 igraph_error [function] [call site] 00127
6 igraph_vector_int_reserve [function] [call site] 00128
6 igraph_error [function] [call site] 00129
6 igraph_vector_int_resize [function] [call site] 00130
7 igraph_fatal [function] [call site] 00131
7 igraph_fatal [function] [call site] 00132
7 igraph_vector_int_reserve [function] [call site] 00133
7 igraph_error [function] [call site] 00134
6 igraph_vector_int_resize [function] [call site] 00135
6 IGRAPH_FINALLY_ENTER [function] [call site] 00136
7 igraph_i_reset_finally_stack [function] [call site] 00137
7 igraph_fatal [function] [call site] 00138
6 igraph_i_attribute_add_vertices [function] [call site] 00139
6 igraph_vector_int_resize [function] [call site] 00140
6 igraph_vector_int_resize [function] [call site] 00141
6 IGRAPH_FINALLY_EXIT [function] [call site] 00142
7 igraph_i_reset_finally_stack [function] [call site] 00143
7 igraph_fatal [function] [call site] 00144
6 igraph_error [function] [call site] 00145
6 igraph_vcount [function] [call site] 00146
6 igraph_i_property_cache_invalidate_conditionally [function] [call site] 00147
7 __assert_fail [call site] 00148
7 igraph_i_property_cache_get_bool [function] [call site] 00149
8 igraph_fatal [function] [call site] 00150
5 igraph_error [function] [call site] 00151
5 IGRAPH_FINALLY_CLEAN [function] [call site] 00152
6 igraph_i_reset_finally_stack [function] [call site] 00153
6 igraph_fatalf [function] [call site] 00154
3 igraph_error [function] [call site] 00155
3 IGRAPH_FINALLY_REAL [function] [call site] 00156
3 igraph_destroy [function] [call site] 00157
4 igraph_i_attribute_destroy [function] [call site] 00158
4 igraph_i_property_cache_destroy [function] [call site] 00159
4 igraph_vector_int_destroy [function] [call site] 00160
5 igraph_fatal [function] [call site] 00161
4 igraph_vector_int_destroy [function] [call site] 00162
4 igraph_vector_int_destroy [function] [call site] 00163
4 igraph_vector_int_destroy [function] [call site] 00164
4 igraph_vector_int_destroy [function] [call site] 00165
4 igraph_vector_int_destroy [function] [call site] 00166
3 igraph_vcount [function] [call site] 00167
3 igraph_add_vertices [function] [call site] 00168
3 igraph_error [function] [call site] 00169
3 igraph_add_edges [function] [call site] 00170
4 igraph_vector_int_size [function] [call site] 00171
4 igraph_vector_int_size [function] [call site] 00172
4 igraph_is_directed [function] [call site] 00173
4 igraph_vector_int_size [function] [call site] 00174
4 igraph_error [function] [call site] 00175
4 igraph_vcount [function] [call site] 00176
4 igraph_vector_int_isininterval [function] [call site] 00177
4 igraph_error [function] [call site] 00178
4 igraph_errorf [function] [call site] 00179
4 igraph_errorf [function] [call site] 00180
4 igraph_vector_int_reserve [function] [call site] 00181
4 igraph_vector_int_reserve [function] [call site] 00182
4 igraph_vector_int_push_back [function] [call site] 00183
4 igraph_vector_int_push_back [function] [call site] 00184
4 igraph_vector_int_push_back [function] [call site] 00185
4 igraph_vector_int_push_back [function] [call site] 00186
4 IGRAPH_FINALLY_ENTER [function] [call site] 00187
4 igraph_vector_int_init [function] [call site] 00188
4 IGRAPH_FINALLY_EXIT [function] [call site] 00189
4 IGRAPH_FINALLY_REAL [function] [call site] 00190
4 igraph_vector_int_destroy [function] [call site] 00191
4 igraph_vector_int_init [function] [call site] 00192
4 IGRAPH_FINALLY_EXIT [function] [call site] 00193
4 IGRAPH_FINALLY_REAL [function] [call site] 00194
4 igraph_vector_int_destroy [function] [call site] 00195
4 igraph_vector_int_pair_order [function] [call site] 00196
5 igraph_vector_int_size [function] [call site] 00197
5 igraph_fatal [function] [call site] 00198
5 igraph_vector_int_init [function] [call site] 00199
5 igraph_error [function] [call site] 00200
5 igraph_vector_int_init [function] [call site] 00201
5 igraph_error [function] [call site] 00202
5 igraph_vector_int_resize [function] [call site] 00203
5 igraph_error [function] [call site] 00204
5 igraph_vector_int_null [function] [call site] 00205
6 igraph_fatal [function] [call site] 00206
6 igraph_fatal [function] [call site] 00207
6 igraph_vector_int_size [function] [call site] 00208
6 igraph_vector_int_size [function] [call site] 00209
5 igraph_vector_int_null [function] [call site] 00210
5 igraph_vector_int_destroy [function] [call site] 00211
5 igraph_vector_int_destroy [function] [call site] 00212
5 IGRAPH_FINALLY_CLEAN [function] [call site] 00213
4 igraph_vector_int_resize [function] [call site] 00214
4 IGRAPH_FINALLY_EXIT [function] [call site] 00215
4 igraph_vector_int_pair_order [function] [call site] 00216
4 igraph_vector_int_resize [function] [call site] 00217
4 igraph_i_attribute_add_edges [function] [call site] 00218
4 igraph_vector_int_resize [function] [call site] 00219
4 IGRAPH_FINALLY_EXIT [function] [call site] 00220
4 igraph_i_create_start_vectors [function] [call site] 00221
5 igraph_vector_int_size [function] [call site] 00222
5 igraph_vector_int_resize [function] [call site] 00223
5 igraph_error [function] [call site] 00224
5 igraph_vector_int_null [function] [call site] 00225
4 igraph_i_create_start_vectors [function] [call site] 00226
4 igraph_vector_int_destroy [function] [call site] 00227
4 igraph_vector_int_destroy [function] [call site] 00228
4 IGRAPH_FINALLY_CLEAN [function] [call site] 00229
4 IGRAPH_FINALLY_EXIT [function] [call site] 00230
4 igraph_i_property_cache_invalidate_conditionally [function] [call site] 00231
3 igraph_error [function] [call site] 00232
3 IGRAPH_FINALLY_CLEAN [function] [call site] 00233
2 igraph_error [function] [call site] 00234
1 igraph_destroy [function] [call site] 00235
1 fclose [call site] 00236
1 remove [call site] 00237
1 IGRAPH_FINALLY_STACK_SIZE [function] [call site] 00238