The result of an emptiness check. More...

#include <spot/twaalgos/emptiness.hh>

Inheritance diagram for spot::emptiness_check_result:

Collaboration diagram for spot::emptiness_check_result:

Public Member Functions
	emptiness_check_result (const const_twa_ptr &a, option_map o=option_map())

virtual twa_run_ptr	accepting_run ()
	Return a run accepted by the automata passed to the emptiness check. More...

const const_twa_ptr &	automaton () const
	The automaton on which an accepting_run() was found. More...

const option_map &	options () const
	Return the options parametrizing how the accepting run is computed. More...

const char *	parse_options (char *options)
	Modify the algorithm options. More...

virtual const unsigned_statistics *	statistics () const
	Return statistics, if available. More...

Protected Member Functions
virtual void	options_updated (const option_map &old)
	Notify option updates. More...

Protected Attributes
const_twa_ptr	a_
	The automaton. More...

option_map	o_
	The options. More...

Detailed Description

The result of an emptiness check.

Instances of these class should not last longer than the instances of emptiness_check that produced them as they may reference data internal to the check.

Member Function Documentation

◆ accepting_run()

virtual twa_run_ptr spot::emptiness_check_result::accepting_run ( )

virtual

Return a run accepted by the automata passed to the emptiness check.

This method might actually compute the acceptance run. (Not all emptiness check algorithms actually produce a counter-example as a side-effect of checking emptiness, some need some post-processing.)

This can also return 0 if the emptiness check algorithm cannot produce a counter example (that does not mean there is no counter-example; the mere existence of an instance of this class asserts the existence of a counter-example).

Reimplemented in spot::couvreur99_check_result.

◆ automaton()

const const_twa_ptr& spot::emptiness_check_result::automaton ( ) const

inline

The automaton on which an accepting_run() was found.

◆ options()

const option_map& spot::emptiness_check_result::options ( ) const

inline

Return the options parametrizing how the accepting run is computed.

◆ options_updated()

virtual void spot::emptiness_check_result::options_updated ( const option_map & old )

protectedvirtual

Notify option updates.

◆ parse_options()

const char* spot::emptiness_check_result::parse_options ( char * options )

Modify the algorithm options.

◆ statistics()

virtual const unsigned_statistics* spot::emptiness_check_result::statistics ( ) const

virtual

Return statistics, if available.

Member Data Documentation

◆ a_

const_twa_ptr spot::emptiness_check_result::a_

protected

The automaton.

◆ o_

option_map spot::emptiness_check_result::o_