#include "nondet.h"
#include <util/arith_tools.h>
#include <util/c_types.h>
#include <util/fresh_symbol.h>
#include <util/symbol.h>

Include dependency graph for nondet.cpp:

Functions
symbol_exprt	generate_nondet_int (const mp_integer &min_value, const mp_integer &max_value, const std::string &name_prefix, const typet &int_type, const irep_idt &mode, const source_locationt &source_location, symbol_table_baset &symbol_table, code_blockt &instructions)
	Gets a fresh nondet choice in range (min_value, max_value). More...

code_blockt	generate_nondet_switch (const irep_idt &name_prefix, const alternate_casest &switch_cases, const typet &int_type, const irep_idt &mode, const source_locationt &source_location, symbol_table_baset &symbol_table)
	Pick nondeterministically between imperative actions 'switch_cases'. More...

Function Documentation

◆ generate_nondet_int()

symbol_exprt generate_nondet_int	(	const mp_integer &	min_value,
		const mp_integer &	max_value,
		const std::string &	name_prefix,
		const typet &	int_type,
		const irep_idt &	mode,
		const source_locationt &	source_location,
		symbol_table_baset &	symbol_table,
		code_blockt &	instructions
	)

Gets a fresh nondet choice in range (min_value, max_value).

GOTO generated resembles:

int_type name_prefix::nondet_int = NONDET(int_type)
ASSUME(name_prefix::nondet_int >= min_value)
ASSUME(name_prefix::nondet_int <= max_value)

Parameters

min_value	Minimum value (inclusive) of returned int.
max_value	Maximum value (inclusive) of returned int.
name_prefix	Prefix for the fresh symbol name generated (should be function id)
int_type	The type of the int used to non-deterministically choose one of the switch cases.
mode	Mode (language) of the symbol to be generated.
source_location	The location to mark the generated int with.
symbol_table	The global symbol table.
instructions	[out]: Output instructions are written to 'instructions'. These declare, nondet-initialise and range-constrain (with assume statements) a fresh integer.

Definition at line 36 of file nondet.cpp.

code_blockt generate_nondet_switch	(	const irep_idt &	name_prefix,
		const alternate_casest &	switch_cases,
		const typet &	int_type,
		const irep_idt &	mode,
		const source_locationt &	source_location,
		symbol_table_baset &	symbol_table
	)

Pick nondeterministically between imperative actions 'switch_cases'.

Parameters

name_prefix	Name prefix for fresh symbols (should be function id)
switch_cases	List of codet objects to execute in each switch case.
int_type	The type of the int used to non-deterministically choose one of the switch cases.
mode	Mode (language) of the symbol to be generated.
source_location	The location to mark the generated int with.
symbol_table	The global symbol table.

Returns: Returns a nondet-switch choosing between switch_cases. The resulting switch block has no default case.

Definition at line 87 of file nondet.cpp.