High level conclusions

Fuzzers reach 92.38% code coverage.

Fuzzers reach 72.12% of cyclomatic complexity.

Fuzzers reach 54.82% of all functions.

Reachability and coverage overview

Functions statically reachable by fuzzers

216 / 394

Cyclomatic complexity statically reachable by fuzzers

2119 / 2938

Runtime code coverage of functions

364 / 394

Warning: The number of runtime covered functions are larger than the number of reachable functions. This means that Fuzz Introspector found there are more functions covered at runtime than what is considered reachable based on the static analysis. This is a limitation in the analysis as anything covered at runtime is by definition reachable by the fuzzers.
This is likely due to a limitation in the static analysis. In this case, the count of functions covered at runtime is the true value, which means this is what should be considered "achieved" by the fuzzer.

Use the project functions table below to query all functions that were not covered at runtime.

The following table shows data about each function in the project. The functions included in this table correspond to all functions that exist in the executables of the fuzzers. As such, there may be functions that are from third-party libraries.

For further technical details on the meaning of columns in the below table, please see the Glossary .

Func name	Functions filename	Args	Function call depth	Reached by Fuzzers	Runtime reached by Fuzzers	Combined reached by Fuzzers	Fuzzers runtime hit	Func lines hit %	I Count	BB Count	Cyclomatic complexity	Functions reached	Reached by functions	Accumulated cyclomatic complexity	Undiscovered complexity

Fuzzer: numeric_parser_fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	0	0.0%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	67	100.%
All colors	67	100

Runtime coverage analysis

Covered functions

60

Functions that are reachable but not covered

10

Reachable functions

84

Percentage of reachable functions covered

88.1%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/args/fuzz/numeric_parser_fuzzer.cpp	16
/src/args/args.hxx	40

Fuzzer: parse_args_fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	130	57.0%
gold	[1:9]	0	0.0%
yellow	[10:29]	4	1.75%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	94	41.2%
All colors	228	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
46	90	std::__1::__wrap_iter , std::__1::allocator >*> args::ArgumentParser::Parse , std::__1::allocator >*> >(std::__1::__wrap_iter , std::__1::allocator >*>, std::__1::__wrap_iter , std::__1::allocator >*>)	call site: 00090	__cxa_allocate_exception
22	174	bool args::ArgumentParser::ParseShort , std::__1::allocator >*> >(std::__1::__wrap_iter , std::__1::allocator >*>&, std::__1::__wrap_iter , std::__1::allocator >*>)	call site: 00174	__cxa_allocate_exception
21	200	std::__1::__wrap_iter , std::__1::allocator >*> args::ArgumentParser::Parse , std::__1::allocator >*> >(std::__1::__wrap_iter , std::__1::allocator >*>, std::__1::__wrap_iter , std::__1::allocator >*>)	call site: 00200	__cxa_allocate_exception
9	141	bool args::ArgumentParser::ParseLong , std::__1::allocator >*> >(std::__1::__wrap_iter , std::__1::allocator >*>&, std::__1::__wrap_iter , std::__1::allocator >*>)	call site: 00141	__cxa_allocate_exception
6	55	args::ParseError::ParseError(std::__1::basic_string , std::__1::allocator > const&)	call site: 00055	__cxa_throw
4	30	args::Matcher::Matcher , std::__1::equal_to , std::__1::allocator >, std::__1::unordered_set , std::__1::allocator >, std::__1::hash , std::__1::allocator > >, std::__1::equal_to , std::__1::allocator > >, std::__1::allocator , std::__1::allocator > > > >(std::__1::unordered_set , std::__1::equal_to , std::__1::allocator >&&, std::__1::unordered_set , std::__1::allocator >, std::__1::hash , std::__1::allocator > >, std::__1::equal_to , std::__1::allocator > >, std::__1::allocator , std::__1::allocator > > >&&)	call site: 00030	__cxa_allocate_exception
4	165	bool args::ArgumentParser::ParseShort , std::__1::allocator >*> >(std::__1::__wrap_iter , std::__1::allocator >*>&, std::__1::__wrap_iter , std::__1::allocator >*>)	call site: 00165	__cxa_allocate_exception
3	11	args::ArgumentParser::ArgumentParser(std::__1::basic_string , std::__1::allocator > const&, std::__1::basic_string , std::__1::allocator > const&)	call site: 00011	__cxa_allocate_exception
3	65	args::Group::Add(args::Base&)	call site: 00065	__cxa_rethrow
2	15	args::Error::Error(std::__1::basic_string , std::__1::allocator > const&)	call site: 00015	__cxa_throw
2	52	args::Group::DetectDuplicateFlags(std::__1::unordered_set , std::__1::equal_to , std::__1::allocator >&, std::__1::unordered_set , std::__1::allocator >, std::__1::hash , std::__1::allocator > >, std::__1::equal_to , std::__1::allocator > >, std::__1::allocator , std::__1::allocator > > >&)	call site: 00052	__cxa_allocate_exception
2	62	args::Group::DetectDuplicateFlags(std::__1::unordered_set , std::__1::equal_to , std::__1::allocator >&, std::__1::unordered_set , std::__1::allocator >, std::__1::hash , std::__1::allocator > >, std::__1::equal_to , std::__1::allocator > >, std::__1::allocator , std::__1::allocator > > >&)	call site: 00062	__dynamic_cast

Runtime coverage analysis

Covered functions

82

Functions that are reachable but not covered

57

Reachable functions

163

Percentage of reachable functions covered

65.03%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/args/fuzz/parse_args_fuzzer.cpp	1
/src/args/args.hxx	77

Fuzzer: parse_schema_fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	140	36.4%
gold	[1:9]	8	2.08%
yellow	[10:29]	1	0.26%
greenyellow	[30:49]	7	1.82%
lawngreen	50+	228	59.3%
All colors	384	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
46	188	std::__1::__wrap_iter , std::__1::allocator > const*> args::ArgumentParser::Parse , std::__1::allocator > const*> >(std::__1::__wrap_iter , std::__1::allocator > const*>, std::__1::__wrap_iter , std::__1::allocator > const*>)	call site: 00188	__cxa_allocate_exception
21	272	bool args::ArgumentParser::ParseShort , std::__1::allocator > const*> >(std::__1::__wrap_iter , std::__1::allocator > const*>&, std::__1::__wrap_iter , std::__1::allocator > const*>)	call site: 00272	__cxa_allocate_exception
17	309	std::__1::basic_string , std::__1::allocator > args::ArgumentParser::ParseArgsValues , std::__1::allocator >*> >(args::FlagBase&, std::__1::basic_string , std::__1::allocator > const&, std::__1::__wrap_iter , std::__1::allocator >*>&, std::__1::__wrap_iter , std::__1::allocator >*>, bool, bool, bool, std::__1::basic_string , std::__1::allocator > const&, bool, std::__1::vector , std::__1::allocator >, std::__1::allocator , std::__1::allocator > > >&)	call site: 00309	__cxa_allocate_exception
14	294	std::__1::__wrap_iter , std::__1::allocator > const*> args::ArgumentParser::Parse , std::__1::allocator > const*> >(std::__1::__wrap_iter , std::__1::allocator > const*>, std::__1::__wrap_iter , std::__1::allocator > const*>)	call site: 00294	__cxa_allocate_exception
7	241	std::__1::basic_string , std::__1::allocator > args::ArgumentParser::ParseArgsValues , std::__1::allocator > const*> >(args::FlagBase&, std::__1::basic_string , std::__1::allocator > const&, std::__1::__wrap_iter , std::__1::allocator > const*>&, std::__1::__wrap_iter , std::__1::allocator > const*>, bool, bool, bool, std::__1::basic_string , std::__1::allocator > const&, bool, std::__1::vector , std::__1::allocator >, std::__1::allocator , std::__1::allocator > > >&)	call site: 00241	__cxa_allocate_exception
6	55	args::ParseError::ParseError(std::__1::basic_string , std::__1::allocator > const&)	call site: 00055	__cxa_throw
4	30	args::Matcher::Matcher , std::__1::equal_to , std::__1::allocator >, std::__1::unordered_set , std::__1::allocator >, std::__1::hash , std::__1::allocator > >, std::__1::equal_to , std::__1::allocator > >, std::__1::allocator , std::__1::allocator > > > >(std::__1::unordered_set , std::__1::equal_to , std::__1::allocator >&&, std::__1::unordered_set , std::__1::allocator >, std::__1::hash , std::__1::allocator > >, std::__1::equal_to , std::__1::allocator > >, std::__1::allocator , std::__1::allocator > > >&&)	call site: 00030	__cxa_allocate_exception
4	137	LLVMFuzzerTestOneInput	call site: 00137	__cxa_allocate_exception
3	11	args::ArgumentParser::ArgumentParser(std::__1::basic_string , std::__1::allocator > const&, std::__1::basic_string , std::__1::allocator > const&)	call site: 00011	__cxa_allocate_exception
3	65	args::Group::Add(args::Base&)	call site: 00065	__cxa_rethrow
2	15	args::Error::Error(std::__1::basic_string , std::__1::allocator > const&)	call site: 00015	__cxa_throw
2	52	args::Group::DetectDuplicateFlags(std::__1::unordered_set , std::__1::equal_to , std::__1::allocator >&, std::__1::unordered_set , std::__1::allocator >, std::__1::hash , std::__1::allocator > >, std::__1::equal_to , std::__1::allocator > >, std::__1::allocator , std::__1::allocator > > >&)	call site: 00052	__cxa_allocate_exception

Runtime coverage analysis

Covered functions

179

Functions that are reachable but not covered

65

Reachable functions

266

Percentage of reachable functions covered

75.56%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/args/fuzz/parse_schema_fuzzer.cpp	1
/src/args/args.hxx	128

Fuzzer: commands_fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	118	44.5%
gold	[1:9]	0	0.0%
yellow	[10:29]	4	1.50%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	143	53.9%
All colors	265	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
46	108	std::__1::__wrap_iter , std::__1::allocator > const*> args::ArgumentParser::Parse , std::__1::allocator > const*> >(std::__1::__wrap_iter , std::__1::allocator > const*>, std::__1::__wrap_iter , std::__1::allocator > const*>)	call site: 00108	__cxa_allocate_exception
14	231	bool args::ArgumentParser::ParseShort , std::__1::allocator >*> >(std::__1::__wrap_iter , std::__1::allocator >*>&, std::__1::__wrap_iter , std::__1::allocator >*>)	call site: 00231	__cxa_allocate_exception
11	214	std::__1::__wrap_iter , std::__1::allocator > const*> args::ArgumentParser::Parse , std::__1::allocator > const*> >(std::__1::__wrap_iter , std::__1::allocator > const*>, std::__1::__wrap_iter , std::__1::allocator > const*>)	call site: 00214	__cxa_allocate_exception
7	161	std::__1::basic_string , std::__1::allocator > args::ArgumentParser::ParseArgsValues , std::__1::allocator > const*> >(args::FlagBase&, std::__1::basic_string , std::__1::allocator > const&, std::__1::__wrap_iter , std::__1::allocator > const*>&, std::__1::__wrap_iter , std::__1::allocator > const*>, bool, bool, bool, std::__1::basic_string , std::__1::allocator > const&, bool, std::__1::vector , std::__1::allocator >, std::__1::allocator , std::__1::allocator > > >&)	call site: 00161	__cxa_allocate_exception
6	37	args::ParseError::ParseError(std::__1::basic_string , std::__1::allocator > const&)	call site: 00037	__cxa_throw
6	182	bool args::ArgumentParser::ParseShort , std::__1::allocator > const*> >(std::__1::__wrap_iter , std::__1::allocator > const*>&, std::__1::__wrap_iter , std::__1::allocator > const*>)	call site: 00182	__cxa_allocate_exception
4	74	args::ArgumentParser::ArgumentParser(std::__1::basic_string , std::__1::allocator > const&, std::__1::basic_string , std::__1::allocator > const&)	call site: 00074	__cxa_allocate_exception
4	206	std::__1::__wrap_iter , std::__1::allocator > const*> args::ArgumentParser::Parse , std::__1::allocator > const*> >(std::__1::__wrap_iter , std::__1::allocator > const*>, std::__1::__wrap_iter , std::__1::allocator > const*>)	call site: 00206	__cxa_allocate_exception
3	9	args::Matcher::Matcher , std::__1::equal_to , std::__1::allocator >, std::__1::unordered_set , std::__1::allocator >, std::__1::hash , std::__1::allocator > >, std::__1::equal_to , std::__1::allocator > >, std::__1::allocator , std::__1::allocator > > > >(std::__1::unordered_set , std::__1::equal_to , std::__1::allocator >&&, std::__1::unordered_set , std::__1::allocator >, std::__1::hash , std::__1::allocator > >, std::__1::equal_to , std::__1::allocator > >, std::__1::allocator , std::__1::allocator > > >&&)	call site: 00009	__cxa_allocate_exception
3	47	args::Group::Add(args::Base&)	call site: 00047	__cxa_rethrow
2	13	args::Error::Error(std::__1::basic_string , std::__1::allocator > const&)	call site: 00013	__cxa_throw
2	34	args::Group::DetectDuplicateFlags(std::__1::unordered_set , std::__1::equal_to , std::__1::allocator >&, std::__1::unordered_set , std::__1::allocator >, std::__1::hash , std::__1::allocator > >, std::__1::equal_to , std::__1::allocator > >, std::__1::allocator , std::__1::allocator > > >&)	call site: 00034	__cxa_allocate_exception

Runtime coverage analysis

Covered functions

187

Functions that are reachable but not covered

35

Reachable functions

208

Percentage of reachable functions covered

83.17%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/args/fuzz/commands_fuzzer.cpp	1
/src/args/args.hxx	99

Fuzzer: help_render_fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	146	39.3%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	225	60.6%
All colors	371	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
21	243	bool args::ArgumentParser::ParseShort , std::__1::allocator > const*> >(std::__1::__wrap_iter , std::__1::allocator > const*>&, std::__1::__wrap_iter , std::__1::allocator > const*>)	call site: 00243	__cxa_allocate_exception
18	159	std::__1::__wrap_iter , std::__1::allocator > const*> args::ArgumentParser::Parse , std::__1::allocator > const*> >(std::__1::__wrap_iter , std::__1::allocator > const*>, std::__1::__wrap_iter , std::__1::allocator > const*>)	call site: 00159
18	179	args::Matcher::GetShortOrAny() const	call site: 00179	__cxa_allocate_exception
16	280	std::__1::basic_string , std::__1::allocator > args::ArgumentParser::ParseArgsValues , std::__1::allocator >*> >(args::FlagBase&, std::__1::basic_string , std::__1::allocator > const&, std::__1::__wrap_iter , std::__1::allocator >*>&, std::__1::__wrap_iter , std::__1::allocator >*>, bool, bool, bool, std::__1::basic_string , std::__1::allocator > const&, bool, std::__1::vector , std::__1::allocator >, std::__1::allocator , std::__1::allocator > > >&)	call site: 00280	__cxa_allocate_exception
14	265	std::__1::__wrap_iter , std::__1::allocator > const*> args::ArgumentParser::Parse , std::__1::allocator > const*> >(std::__1::__wrap_iter , std::__1::allocator > const*>, std::__1::__wrap_iter , std::__1::allocator > const*>)	call site: 00265	__cxa_allocate_exception
11	212	std::__1::basic_string , std::__1::allocator > args::ArgumentParser::ParseArgsValues , std::__1::allocator > const*> >(args::FlagBase&, std::__1::basic_string , std::__1::allocator > const&, std::__1::__wrap_iter , std::__1::allocator > const*>&, std::__1::__wrap_iter , std::__1::allocator > const*>, bool, bool, bool, std::__1::basic_string , std::__1::allocator > const&, bool, std::__1::vector , std::__1::allocator >, std::__1::allocator , std::__1::allocator > > >&)	call site: 00212	__cxa_allocate_exception
8	322	args::Command::GetDescription(args::HelpParams const&, unsigned int) const	call site: 00322	__cxa_begin_catch
6	61	args::ParseError::ParseError(std::__1::basic_string , std::__1::allocator > const&)	call site: 00061	__cxa_throw
5	200	std::__1::basic_string , std::__1::allocator > args::detail::Join , std::__1::allocator >, std::__1::allocator , std::__1::allocator > > > >(std::__1::vector , std::__1::allocator >, std::__1::allocator , std::__1::allocator > > > const&, std::__1::basic_string , std::__1::allocator > const&)	call site: 00200	__clang_call_terminate
5	342	args::Command::GetCommandProgramLine(args::HelpParams const&) const	call site: 00342	isspace
4	36	args::Matcher::Matcher , std::__1::equal_to , std::__1::allocator >, std::__1::unordered_set , std::__1::allocator >, std::__1::hash , std::__1::allocator > >, std::__1::equal_to , std::__1::allocator > >, std::__1::allocator , std::__1::allocator > > > >(std::__1::unordered_set , std::__1::equal_to , std::__1::allocator >&&, std::__1::unordered_set , std::__1::allocator >, std::__1::hash , std::__1::allocator > >, std::__1::equal_to , std::__1::allocator > >, std::__1::allocator , std::__1::allocator > > >&&)	call site: 00036	__cxa_allocate_exception
3	11	args::ArgumentParser::ArgumentParser(std::__1::basic_string , std::__1::allocator > const&, std::__1::basic_string , std::__1::allocator > const&)	call site: 00011	__cxa_allocate_exception

Runtime coverage analysis

Covered functions

208

Functions that are reachable but not covered

62

Reachable functions

263

Percentage of reachable functions covered

76.43%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/args/fuzz/help_render_fuzzer.cpp	1
/src/args/args.hxx	126

Fuzzer: completion_fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	127	43.9%
gold	[1:9]	0	0.0%
yellow	[10:29]	4	1.38%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	158	54.6%
All colors	289	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
18	151	args::Matcher::GetShortOrAny() const	call site: 00151	__cxa_allocate_exception
18	203	std::__1::__wrap_iter , std::__1::allocator > const*> args::ArgumentParser::Parse , std::__1::allocator > const*> >(std::__1::__wrap_iter , std::__1::allocator > const*>, std::__1::__wrap_iter , std::__1::allocator > const*>)	call site: 00203	__cxa_allocate_exception
14	255	bool args::ArgumentParser::ParseShort , std::__1::allocator >*> >(std::__1::__wrap_iter , std::__1::allocator >*>&, std::__1::__wrap_iter , std::__1::allocator >*>)	call site: 00255	__cxa_allocate_exception
12	138	args::ArgumentParser::AddCompletionReply(std::__1::basic_string , std::__1::allocator > const&, std::__1::basic_string , std::__1::allocator > const&)	call site: 00138
8	227	args::Subparser::Subparser(std::__1::vector , std::__1::allocator >, std::__1::allocator , std::__1::allocator > > >, args::ArgumentParser&, args::Command const&, args::HelpParams const&)	call site: 00227	__cxa_allocate_exception
7	185	std::__1::basic_string , std::__1::allocator > args::ArgumentParser::ParseArgsValues , std::__1::allocator > const*> >(args::FlagBase&, std::__1::basic_string , std::__1::allocator > const&, std::__1::__wrap_iter , std::__1::allocator > const*>&, std::__1::__wrap_iter , std::__1::allocator > const*>, bool, bool, bool, std::__1::basic_string , std::__1::allocator > const&, bool, std::__1::vector , std::__1::allocator >, std::__1::allocator , std::__1::allocator > > >&)	call site: 00185	__cxa_allocate_exception
6	55	args::ParseError::ParseError(std::__1::basic_string , std::__1::allocator > const&)	call site: 00055	__cxa_throw
6	236	args::Command::RaiiSubparser::~RaiiSubparser()	call site: 00236	__cxa_allocate_exception
5	132	std::__1::__wrap_iter , std::__1::allocator > const*> args::ArgumentParser::Parse , std::__1::allocator > const*> >(std::__1::__wrap_iter , std::__1::allocator > const*>, std::__1::__wrap_iter , std::__1::allocator > const*>)	call site: 00132
4	29	args::Matcher::Matcher , std::__1::equal_to , std::__1::allocator >, std::__1::unordered_set , std::__1::allocator >, std::__1::hash , std::__1::allocator > >, std::__1::equal_to , std::__1::allocator > >, std::__1::allocator , std::__1::allocator > > > >(std::__1::unordered_set , std::__1::equal_to , std::__1::allocator >&&, std::__1::unordered_set , std::__1::allocator >, std::__1::hash , std::__1::allocator > >, std::__1::equal_to , std::__1::allocator > >, std::__1::allocator , std::__1::allocator > > >&&)	call site: 00029	__cxa_allocate_exception
4	198	args::Base::KickOut() const	call site: 00198	__cxa_allocate_exception
3	11	args::ArgumentParser::ArgumentParser(std::__1::basic_string , std::__1::allocator > const&, std::__1::basic_string , std::__1::allocator > const&)	call site: 00011	__cxa_allocate_exception

Runtime coverage analysis

Covered functions

167

Functions that are reachable but not covered

26

Reachable functions

212

Percentage of reachable functions covered

87.74%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/args/fuzz/completion_fuzzer.cpp	1
/src/args/args.hxx	101

Optimal target analysis

Remaining optimal interesting functions

The following table shows a list of functions that are optimal targets. Optimal targets are identified by finding the functions that in combination, yield a high code coverage.

Func name	Functions filename	Arg count	Args	Function depth	hitcount	instr count	bb count	cyclomatic complexity	Reachable functions	Incoming references	total cyclomatic complexity	Unreached complexity
args::FlagBase::GetProgramLine(args::HelpParamsconst&)const	/src/args/args.hxx	3	['N/A', 'N/A', 'N/A']	2	0	246	52	49	22	0	82	59
args::MapFlagList ,std::__1::allocator >,int,args::detail::vector,args::ValueReader,args::detail::unordered_map>::Match(args::EitherFlagconst&)	/src/args/args.hxx	2	['N/A', 'N/A']	5	0	35	8	4	25	0	55	39
args::CompletionFlag::ParseValue(std::__1::vector ,std::__1::allocator >,std::__1::allocator ,std::__1::allocator >>>const&)	/src/args/args.hxx	2	['N/A', 'N/A']	3	0	208	42	35	9	0	47	35

Implementing fuzzers that target the above functions will improve reachability such that it becomes:

Functions statically reachable by fuzzers

229 / 394

Cyclomatic complexity statically reachable by fuzzers

2252 / 2938

All functions overview

If you implement fuzzers for these functions, the status of all functions in the project will be:

Func name	Functions filename	Args	Function call depth	Reached by Fuzzers	Runtime reached by Fuzzers	Combined reached by Fuzzers	Fuzzers runtime hit	Func lines hit %	I Count	BB Count	Cyclomatic complexity	Functions reached	Reached by functions	Accumulated cyclomatic complexity	Undiscovered complexity

This sections provides heuristics that can be used as input to a fuzz engine when running a given fuzz target. The current focus is on providing input that is usable by libFuzzer.

/src/args/fuzz/numeric_parser_fuzzer.cpp

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

/src/args/fuzz/parse_args_fuzzer.cpp

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['std::__1::__wrap_iter, std::__1::allocator >*> args::ArgumentParser::Parse, std::__1::allocator >*> >(std::__1::__wrap_iter, std::__1::allocator >*>, std::__1::__wrap_iter, std::__1::allocator >*>)', 'bool args::ArgumentParser::ParseShort, std::__1::allocator >*> >(std::__1::__wrap_iter, std::__1::allocator >*>&, std::__1::__wrap_iter, std::__1::allocator >*>)', 'std::__1::__wrap_iter, std::__1::allocator >*> args::ArgumentParser::Parse, std::__1::allocator >*> >(std::__1::__wrap_iter, std::__1::allocator >*>, std::__1::__wrap_iter, std::__1::allocator >*>)', 'bool args::ArgumentParser::ParseLong, std::__1::allocator >*> >(std::__1::__wrap_iter, std::__1::allocator >*>&, std::__1::__wrap_iter, std::__1::allocator >*>)', 'args::ParseError::ParseError(std::__1::basic_string, std::__1::allocator > const&)', 'args::Matcher::Matcher, std::__1::equal_to, std::__1::allocator >, std::__1::unordered_set, std::__1::allocator >, std::__1::hash, std::__1::allocator > >, std::__1::equal_to, std::__1::allocator > >, std::__1::allocator, std::__1::allocator > > > >(std::__1::unordered_set, std::__1::equal_to, std::__1::allocator >&&, std::__1::unordered_set, std::__1::allocator >, std::__1::hash, std::__1::allocator > >, std::__1::equal_to, std::__1::allocator > >, std::__1::allocator, std::__1::allocator > > >&&)', 'bool args::ArgumentParser::ParseShort, std::__1::allocator >*> >(std::__1::__wrap_iter, std::__1::allocator >*>&, std::__1::__wrap_iter, std::__1::allocator >*>)', 'args::ArgumentParser::ArgumentParser(std::__1::basic_string, std::__1::allocator > const&, std::__1::basic_string, std::__1::allocator > const&)', 'args::Group::Add(args::Base&)', 'args::Error::Error(std::__1::basic_string, std::__1::allocator > const&)']

/src/args/fuzz/parse_schema_fuzzer.cpp

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['std::__1::__wrap_iter, std::__1::allocator > const*> args::ArgumentParser::Parse, std::__1::allocator > const*> >(std::__1::__wrap_iter, std::__1::allocator > const*>, std::__1::__wrap_iter, std::__1::allocator > const*>)', 'bool args::ArgumentParser::ParseShort, std::__1::allocator > const*> >(std::__1::__wrap_iter, std::__1::allocator > const*>&, std::__1::__wrap_iter, std::__1::allocator > const*>)', 'std::__1::basic_string, std::__1::allocator > args::ArgumentParser::ParseArgsValues, std::__1::allocator >*> >(args::FlagBase&, std::__1::basic_string, std::__1::allocator > const&, std::__1::__wrap_iter, std::__1::allocator >*>&, std::__1::__wrap_iter, std::__1::allocator >*>, bool, bool, bool, std::__1::basic_string, std::__1::allocator > const&, bool, std::__1::vector, std::__1::allocator >, std::__1::allocator, std::__1::allocator > > >&)', 'std::__1::__wrap_iter, std::__1::allocator > const*> args::ArgumentParser::Parse, std::__1::allocator > const*> >(std::__1::__wrap_iter, std::__1::allocator > const*>, std::__1::__wrap_iter, std::__1::allocator > const*>)', 'std::__1::basic_string, std::__1::allocator > args::ArgumentParser::ParseArgsValues, std::__1::allocator > const*> >(args::FlagBase&, std::__1::basic_string, std::__1::allocator > const&, std::__1::__wrap_iter, std::__1::allocator > const*>&, std::__1::__wrap_iter, std::__1::allocator > const*>, bool, bool, bool, std::__1::basic_string, std::__1::allocator > const&, bool, std::__1::vector, std::__1::allocator >, std::__1::allocator, std::__1::allocator > > >&)', 'args::ParseError::ParseError(std::__1::basic_string, std::__1::allocator > const&)', 'args::Matcher::Matcher, std::__1::equal_to, std::__1::allocator >, std::__1::unordered_set, std::__1::allocator >, std::__1::hash, std::__1::allocator > >, std::__1::equal_to, std::__1::allocator > >, std::__1::allocator, std::__1::allocator > > > >(std::__1::unordered_set, std::__1::equal_to, std::__1::allocator >&&, std::__1::unordered_set, std::__1::allocator >, std::__1::hash, std::__1::allocator > >, std::__1::equal_to, std::__1::allocator > >, std::__1::allocator, std::__1::allocator > > >&&)', 'LLVMFuzzerTestOneInput', 'args::ArgumentParser::ArgumentParser(std::__1::basic_string, std::__1::allocator > const&, std::__1::basic_string, std::__1::allocator > const&)', 'args::Group::Add(args::Base&)']

/src/args/fuzz/commands_fuzzer.cpp

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['std::__1::__wrap_iter, std::__1::allocator > const*> args::ArgumentParser::Parse, std::__1::allocator > const*> >(std::__1::__wrap_iter, std::__1::allocator > const*>, std::__1::__wrap_iter, std::__1::allocator > const*>)', 'bool args::ArgumentParser::ParseShort, std::__1::allocator >*> >(std::__1::__wrap_iter, std::__1::allocator >*>&, std::__1::__wrap_iter, std::__1::allocator >*>)', 'std::__1::__wrap_iter, std::__1::allocator > const*> args::ArgumentParser::Parse, std::__1::allocator > const*> >(std::__1::__wrap_iter, std::__1::allocator > const*>, std::__1::__wrap_iter, std::__1::allocator > const*>)', 'std::__1::basic_string, std::__1::allocator > args::ArgumentParser::ParseArgsValues, std::__1::allocator > const*> >(args::FlagBase&, std::__1::basic_string, std::__1::allocator > const&, std::__1::__wrap_iter, std::__1::allocator > const*>&, std::__1::__wrap_iter, std::__1::allocator > const*>, bool, bool, bool, std::__1::basic_string, std::__1::allocator > const&, bool, std::__1::vector, std::__1::allocator >, std::__1::allocator, std::__1::allocator > > >&)', 'args::ParseError::ParseError(std::__1::basic_string, std::__1::allocator > const&)', 'bool args::ArgumentParser::ParseShort, std::__1::allocator > const*> >(std::__1::__wrap_iter, std::__1::allocator > const*>&, std::__1::__wrap_iter, std::__1::allocator > const*>)', 'args::ArgumentParser::ArgumentParser(std::__1::basic_string, std::__1::allocator > const&, std::__1::basic_string, std::__1::allocator > const&)', 'std::__1::__wrap_iter, std::__1::allocator > const*> args::ArgumentParser::Parse, std::__1::allocator > const*> >(std::__1::__wrap_iter, std::__1::allocator > const*>, std::__1::__wrap_iter, std::__1::allocator > const*>)', 'args::Matcher::Matcher, std::__1::equal_to, std::__1::allocator >, std::__1::unordered_set, std::__1::allocator >, std::__1::hash, std::__1::allocator > >, std::__1::equal_to, std::__1::allocator > >, std::__1::allocator, std::__1::allocator > > > >(std::__1::unordered_set, std::__1::equal_to, std::__1::allocator >&&, std::__1::unordered_set, std::__1::allocator >, std::__1::hash, std::__1::allocator > >, std::__1::equal_to, std::__1::allocator > >, std::__1::allocator, std::__1::allocator > > >&&)', 'args::Group::Add(args::Base&)']

/src/args/fuzz/help_render_fuzzer.cpp

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['bool args::ArgumentParser::ParseShort, std::__1::allocator > const*> >(std::__1::__wrap_iter, std::__1::allocator > const*>&, std::__1::__wrap_iter, std::__1::allocator > const*>)', 'std::__1::__wrap_iter, std::__1::allocator > const*> args::ArgumentParser::Parse, std::__1::allocator > const*> >(std::__1::__wrap_iter, std::__1::allocator > const*>, std::__1::__wrap_iter, std::__1::allocator > const*>)', 'args::Matcher::GetShortOrAny() const', 'std::__1::basic_string, std::__1::allocator > args::ArgumentParser::ParseArgsValues, std::__1::allocator >*> >(args::FlagBase&, std::__1::basic_string, std::__1::allocator > const&, std::__1::__wrap_iter, std::__1::allocator >*>&, std::__1::__wrap_iter, std::__1::allocator >*>, bool, bool, bool, std::__1::basic_string, std::__1::allocator > const&, bool, std::__1::vector, std::__1::allocator >, std::__1::allocator, std::__1::allocator > > >&)', 'std::__1::__wrap_iter, std::__1::allocator > const*> args::ArgumentParser::Parse, std::__1::allocator > const*> >(std::__1::__wrap_iter, std::__1::allocator > const*>, std::__1::__wrap_iter, std::__1::allocator > const*>)', 'std::__1::basic_string, std::__1::allocator > args::ArgumentParser::ParseArgsValues, std::__1::allocator > const*> >(args::FlagBase&, std::__1::basic_string, std::__1::allocator > const&, std::__1::__wrap_iter, std::__1::allocator > const*>&, std::__1::__wrap_iter, std::__1::allocator > const*>, bool, bool, bool, std::__1::basic_string, std::__1::allocator > const&, bool, std::__1::vector, std::__1::allocator >, std::__1::allocator, std::__1::allocator > > >&)', 'args::Command::GetDescription(args::HelpParams const&, unsigned int) const', 'args::ParseError::ParseError(std::__1::basic_string, std::__1::allocator > const&)', 'std::__1::basic_string, std::__1::allocator > args::detail::Join, std::__1::allocator >, std::__1::allocator, std::__1::allocator > > > >(std::__1::vector, std::__1::allocator >, std::__1::allocator, std::__1::allocator > > > const&, std::__1::basic_string, std::__1::allocator > const&)', 'args::Command::GetCommandProgramLine(args::HelpParams const&) const']

/src/args/fuzz/completion_fuzzer.cpp

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['args::Matcher::GetShortOrAny() const', 'std::__1::__wrap_iter, std::__1::allocator > const*> args::ArgumentParser::Parse, std::__1::allocator > const*> >(std::__1::__wrap_iter, std::__1::allocator > const*>, std::__1::__wrap_iter, std::__1::allocator > const*>)', 'bool args::ArgumentParser::ParseShort, std::__1::allocator >*> >(std::__1::__wrap_iter, std::__1::allocator >*>&, std::__1::__wrap_iter, std::__1::allocator >*>)', 'args::ArgumentParser::AddCompletionReply(std::__1::basic_string, std::__1::allocator > const&, std::__1::basic_string, std::__1::allocator > const&)', 'args::Subparser::Subparser(std::__1::vector, std::__1::allocator >, std::__1::allocator, std::__1::allocator > > >, args::ArgumentParser&, args::Command const&, args::HelpParams const&)', 'std::__1::basic_string, std::__1::allocator > args::ArgumentParser::ParseArgsValues, std::__1::allocator > const*> >(args::FlagBase&, std::__1::basic_string, std::__1::allocator > const&, std::__1::__wrap_iter, std::__1::allocator > const*>&, std::__1::__wrap_iter, std::__1::allocator > const*>, bool, bool, bool, std::__1::basic_string, std::__1::allocator > const&, bool, std::__1::vector, std::__1::allocator >, std::__1::allocator, std::__1::allocator > > >&)', 'args::ParseError::ParseError(std::__1::basic_string, std::__1::allocator > const&)', 'args::Command::RaiiSubparser::~RaiiSubparser()', 'std::__1::__wrap_iter, std::__1::allocator > const*> args::ArgumentParser::Parse, std::__1::allocator > const*> >(std::__1::__wrap_iter, std::__1::allocator > const*>, std::__1::__wrap_iter, std::__1::allocator > const*>)', 'args::Matcher::Matcher, std::__1::equal_to, std::__1::allocator >, std::__1::unordered_set, std::__1::allocator >, std::__1::hash, std::__1::allocator > >, std::__1::equal_to, std::__1::allocator > >, std::__1::allocator, std::__1::allocator > > > >(std::__1::unordered_set, std::__1::equal_to, std::__1::allocator >&&, std::__1::unordered_set, std::__1::allocator >, std::__1::hash, std::__1::allocator > >, std::__1::equal_to, std::__1::allocator > >, std::__1::allocator, std::__1::allocator > > >&&)']

This section shows analysis of runtime coverage data.

For futher technical details on how this section is generated, please see the Glossary .

Complex functions with low coverage

Func name	Function total lines	Lines covered at runtime	percentage covered	Reached by fuzzers
std::__1::__wrap_iter ,std::__1::allocator >*>args::ArgumentParser::Parse ,std::__1::allocator >*>>(std::__1::__wrap_iter ,std::__1::allocator >*>,std::__1::__wrap_iter ,std::__1::allocator >*>)	132	59	44.69%	['completion_fuzzer', 'commands_fuzzer', 'parse_schema_fuzzer', 'help_render_fuzzer', 'parse_args_fuzzer']
boolargs::ArgumentParser::Complete ,std::__1::allocator >const*>>(std::__1::__wrap_iter ,std::__1::allocator >const*>,std::__1::__wrap_iter ,std::__1::allocator >const*>,bool)	97	7	7.216%	['completion_fuzzer', 'commands_fuzzer', 'help_render_fuzzer', 'parse_schema_fuzzer']
args::Command::GetDescription(args::HelpParamsconst&,unsignedint)const	68	32	47.05%	['commands_fuzzer', 'help_render_fuzzer']
args::Command::GetCommandProgramLine(args::HelpParamsconst&)const	47	15	31.91%	['help_render_fuzzer']

This section shows which files and directories are considered in this report. The main reason for showing this is fuzz introspector may include more code in the reasoning than is desired. This section helps identify if too many files/directories are included, e.g. third party code, which may be irrelevant for the threat model. In the event too much is included, fuzz introspector supports a configuration file that can exclude data from the report. See the following link for more information on how to create a config file: link

Files in report

Source file	Reached by	Covered by
	[]	[]
/usr/local/bin/../include/c++/v1/__exception/exception.h	[]	[]
/src/args/fuzz/parse_args_fuzzer.cpp	['parse_args_fuzzer']	['parse_args_fuzzer']
/src/args/fuzz/commands_fuzzer.cpp	['commands_fuzzer']	['commands_fuzzer']
/src/args/fuzz/completion_fuzzer.cpp	['completion_fuzzer']	['completion_fuzzer']
/src/args/fuzz/parse_schema_fuzzer.cpp	['parse_schema_fuzzer']	['parse_schema_fuzzer']
/src/args/fuzz/help_render_fuzzer.cpp	['help_render_fuzzer']	['help_render_fuzzer']
/src/args/args.hxx	['numeric_parser_fuzzer', 'parse_args_fuzzer', 'parse_schema_fuzzer', 'commands_fuzzer', 'help_render_fuzzer', 'completion_fuzzer']	['numeric_parser_fuzzer', 'parse_args_fuzzer', 'parse_schema_fuzzer', 'commands_fuzzer', 'help_render_fuzzer', 'completion_fuzzer']
/src/args/fuzz/numeric_parser_fuzzer.cpp	['numeric_parser_fuzzer']	['numeric_parser_fuzzer']
/usr/local/bin/../include/c++/v1/stdexcept	[]	[]
/usr/local/bin/../include/c++/v1/string	[]	[]

Directories in report

Directory
/src/args/
/usr/local/bin/../include/c++/v1/__exception/
/usr/local/bin/../include/c++/v1/
/src/args/fuzz/