# mcrl2::lps::untime_algorithm¶

Include file:

#include "mcrl2/lps/untime.h

class mcrl2::lps::untime_algorithm

## Protected types¶

type action_summand_type

typedef for process_type::action_summand_type

type process_type

typedef for Specification::process_type

type super

typedef for detail::lps_algorithm< Specification >

## Protected attributes¶

bool m_add_invariants
bool m_apply_fm
data::set_identifier_generator m_identifier_generator

Identifier generator, for generating fresh identifiers.

data::variable m_last_action_time

Variable denoting the time at which the last action occurred.

const data::rewriter &m_rewriter
data::data_expression m_time_invariant

Data expression expressing the invariant for variables relating to time.

For all parameters x relating to time, the expression 0<=x && x<=m_last_action_time, provided that in the initial vector the variable x gets the value 0, and in each summand the new value for x is either x, or the value that is assigned to last action time, which is the time tag of the action in that summand.

## Protected member functions¶

data::data_expression calculate_time_invariant()

Data expression expressing the invariant for variables relating to time.

For all parameters x relating to time, the expression 0<=x && x<=m_last_action_time is returned, provided that in the initial vector the variable x gets the value 0, and in each summand the new value for x is either x, or the value that is assigned to last action time, which is the time tag of the action in that summand.

void untime(action_summand_type &s)

Apply untime to an action summand.

## Public member functions¶

void run()
untime_algorithm(Specification &spec, bool add_invariants, bool apply_fourier_motzkin, const data::rewriter &r)