cprover
bv_pointerst Class Reference

#include <bv_pointers.h>

+ Inheritance diagram for bv_pointerst:
+ Collaboration diagram for bv_pointerst:

Classes

struct  postponedt
 

Public Member Functions

 bv_pointerst (const namespacet &_ns, propt &_prop)
 
void post_process () override
 
- Public Member Functions inherited from boolbvt
 boolbvt (const namespacet &_ns, propt &_prop)
 
virtual const bvtconvert_bv (const exprt &expr, const optionalt< std::size_t > expected_width=nullopt)
 Convert expression to vector of literalts, using an internal cache to speed up conversion if available. More...
 
exprt get (const exprt &expr) const override
 
void set_to (const exprt &expr, bool value) override
 
void print_assignment (std::ostream &out) const override
 
void clear_cache () override
 
virtual bool literal (const exprt &expr, std::size_t bit, literalt &literal) const
 
mp_integer get_value (const bvt &bv)
 
mp_integer get_value (const bvt &bv, std::size_t offset, std::size_t width)
 
const boolbv_maptget_map () const
 
- Public Member Functions inherited from arrayst
 arrayst (const namespacet &_ns, propt &_prop)
 
literalt record_array_equality (const equal_exprt &expr)
 
void record_array_index (const index_exprt &expr)
 
- Public Member Functions inherited from equalityt
 equalityt (propt &_prop)
 
virtual literalt equality (const exprt &e1, const exprt &e2)
 
void post_process () override
 
- Public Member Functions inherited from prop_conv_solvert
 prop_conv_solvert (propt &_prop)
 
virtual ~prop_conv_solvert ()=default
 
void set_to (const exprt &expr, bool value) override
 
decision_proceduret::resultt dec_solve () override
 
void print_assignment (std::ostream &out) const override
 
std::string decision_procedure_text () const override
 
exprt get (const exprt &expr) const override
 
virtual tvt l_get (literalt a) const override
 
void set_frozen (literalt a) override
 
void set_assumptions (const bvt &_assumptions) override
 
bool has_set_assumptions () const override
 
void set_all_frozen () override
 
literalt convert (const exprt &expr) override
 
bool is_in_conflict (literalt l) const override
 determine whether a variable is in the final conflict More...
 
bool has_is_in_conflict () const override
 
bool literal (const symbol_exprt &expr, literalt &literal) const
 
const cachetget_cache () const
 
const symbolstget_symbols () const
 
void set_time_limit_seconds (uint32_t lim) override
 
std::size_t get_number_of_solver_calls () const override
 Returns the number of incremental solver calls. More...
 
virtual void set_frozen (literalt a)
 
virtual void set_frozen (const bvt &)
 
- Public Member Functions inherited from prop_convt
virtual ~prop_convt ()
 
literalt operator() (const exprt &expr)
 
virtual void set_frozen (const bvt &)
 
- Public Member Functions inherited from decision_proceduret
virtual ~decision_proceduret ()
 
void set_to_true (const exprt &expr)
 
void set_to_false (const exprt &expr)
 
resultt operator() ()
 
- Public Member Functions inherited from messaget
virtual void set_message_handler (message_handlert &_message_handler)
 
message_handlertget_message_handler ()
 
 messaget ()
 
 messaget (const messaget &other)
 
messagetoperator= (const messaget &other)
 
 messaget (message_handlert &_message_handler)
 
virtual ~messaget ()
 
mstreamtget_mstream (unsigned message_level) const
 
mstreamterror () const
 
mstreamtwarning () const
 
mstreamtresult () const
 
mstreamtstatus () const
 
mstreamtstatistics () const
 
mstreamtprogress () const
 
mstreamtdebug () const
 
void conditional_output (mstreamt &mstream, const std::function< void(mstreamt &)> &output_generator) const
 Generate output to message_stream using output_generator if the configured verbosity is at least as high as that of message_stream. More...
 

Protected Types

typedef boolbvt SUB
 
typedef std::list< postponedtpostponed_listt
 
- Protected Types inherited from boolbvt
typedef arrayst SUB
 
typedef std::unordered_map< const exprt, bvt, irep_hashbv_cachet
 
typedef std::list< quantifiertquantifier_listt
 
typedef std::vector< std::size_t > offset_mapt
 
- Protected Types inherited from arrayst
enum  lazy_typet {
  lazy_typet::ARRAY_ACKERMANN, lazy_typet::ARRAY_WITH, lazy_typet::ARRAY_IF, lazy_typet::ARRAY_OF,
  lazy_typet::ARRAY_TYPECAST
}
 
typedef std::list< array_equalitytarray_equalitiest
 
typedef std::set< exprtindex_sett
 
typedef std::map< std::size_t, index_settindex_mapt
 
- Protected Types inherited from equalityt
typedef std::unordered_map< const exprt, unsigned, irep_hashelementst
 
typedef std::map< std::pair< unsigned, unsigned >, literaltequalitiest
 
typedef std::map< unsigned, exprtelements_revt
 
typedef std::unordered_map< const typet, typestructt, irep_hashtypemapt
 

Protected Member Functions

void encode (std::size_t object, bvt &bv)
 
virtual bvt convert_pointer_type (const exprt &expr)
 
virtual void add_addr (const exprt &expr, bvt &bv)
 
literalt convert_rest (const exprt &expr) override
 
bvt convert_bitvector (const exprt &expr) override
 Converts an expression into its gate-level representation and returns a vector of literals corresponding to the outputs of the Boolean circuit. More...
 
exprt bv_get_rec (const bvt &bv, const std::vector< bool > &unknown, std::size_t offset, const typet &type) const override
 
bool convert_address_of_rec (const exprt &expr, bvt &bv)
 
void offset_arithmetic (bvt &bv, const mp_integer &x)
 
void offset_arithmetic (bvt &bv, const mp_integer &factor, const exprt &index)
 
void offset_arithmetic (bvt &bv, const mp_integer &factor, const bvt &index_bv)
 
void do_postponed (const postponedt &postponed)
 
- Protected Member Functions inherited from boolbvt
virtual bool boolbv_set_equality_to_true (const equal_exprt &expr)
 
void conversion_failed (const exprt &expr, bvt &bv)
 
bvt conversion_failed (const exprt &expr)
 Print that the expression of x has failed conversion, then return a vector of x's width. More...
 
bool type_conversion (const typet &src_type, const bvt &src, const typet &dest_type, bvt &dest)
 
virtual literalt convert_bv_rel (const exprt &expr)
 Flatten <, >, <= and >= expressions. More...
 
virtual literalt convert_typecast (const typecast_exprt &expr)
 conversion from bitvector types to boolean More...
 
virtual literalt convert_reduction (const unary_exprt &expr)
 
virtual literalt convert_onehot (const unary_exprt &expr)
 
virtual literalt convert_extractbit (const extractbit_exprt &expr)
 
virtual literalt convert_overflow (const exprt &expr)
 
virtual literalt convert_equality (const equal_exprt &expr)
 
virtual literalt convert_verilog_case_equality (const binary_relation_exprt &expr)
 
virtual literalt convert_ieee_float_rel (const exprt &expr)
 
virtual literalt convert_quantifier (const quantifier_exprt &expr)
 
virtual bvt convert_index (const exprt &array, const mp_integer &index)
 index operator with constant index More...
 
virtual bvt convert_index (const index_exprt &expr)
 
virtual bvt convert_bswap (const bswap_exprt &expr)
 
virtual bvt convert_byte_extract (const byte_extract_exprt &expr)
 
virtual bvt convert_byte_update (const byte_update_exprt &expr)
 
virtual bvt convert_constraint_select_one (const exprt &expr)
 
virtual bvt convert_if (const if_exprt &expr)
 
virtual bvt convert_struct (const struct_exprt &expr)
 
virtual bvt convert_array (const exprt &expr)
 Flatten array. More...
 
virtual bvt convert_vector (const vector_exprt &expr)
 
virtual bvt convert_complex (const complex_exprt &expr)
 
virtual bvt convert_complex_real (const complex_real_exprt &expr)
 
virtual bvt convert_complex_imag (const complex_imag_exprt &expr)
 
virtual bvt convert_lambda (const exprt &expr)
 
virtual bvt convert_let (const let_exprt &)
 
virtual bvt convert_array_of (const array_of_exprt &expr)
 Flatten arrays constructed from a single element. More...
 
virtual bvt convert_union (const union_exprt &expr)
 
virtual bvt convert_bv_typecast (const typecast_exprt &expr)
 
virtual bvt convert_add_sub (const exprt &expr)
 
virtual bvt convert_mult (const mult_exprt &expr)
 
virtual bvt convert_div (const div_exprt &expr)
 
virtual bvt convert_mod (const mod_exprt &expr)
 
virtual bvt convert_floatbv_op (const exprt &expr)
 
virtual bvt convert_floatbv_typecast (const floatbv_typecast_exprt &expr)
 
virtual bvt convert_member (const member_exprt &expr)
 
virtual bvt convert_with (const exprt &expr)
 
virtual bvt convert_update (const exprt &expr)
 
virtual bvt convert_case (const exprt &expr)
 
virtual bvt convert_cond (const cond_exprt &)
 
virtual bvt convert_shift (const binary_exprt &expr)
 
virtual bvt convert_bitwise (const exprt &expr)
 
virtual bvt convert_unary_minus (const unary_minus_exprt &expr)
 
virtual bvt convert_abs (const abs_exprt &expr)
 
virtual bvt convert_concatenation (const concatenation_exprt &expr)
 
virtual bvt convert_replication (const replication_exprt &expr)
 
virtual bvt convert_bv_literals (const exprt &expr)
 
virtual bvt convert_constant (const constant_exprt &expr)
 
virtual bvt convert_extractbits (const extractbits_exprt &expr)
 
virtual bvt convert_symbol (const exprt &expr)
 
virtual bvt convert_bv_reduction (const unary_exprt &expr)
 
virtual bvt convert_not (const not_exprt &expr)
 
virtual bvt convert_power (const binary_exprt &expr)
 
virtual bvt convert_function_application (const function_application_exprt &expr)
 
virtual exprt make_bv_expr (const typet &type, const bvt &bv)
 
virtual exprt make_free_bv_expr (const typet &type)
 
void convert_with (const typet &type, const exprt &op1, const exprt &op2, const bvt &prev_bv, bvt &next_bv)
 
void convert_with_bv (const exprt &op1, const exprt &op2, const bvt &prev_bv, bvt &next_bv)
 
void convert_with_array (const array_typet &type, const exprt &op1, const exprt &op2, const bvt &prev_bv, bvt &next_bv)
 
void convert_with_union (const union_typet &type, const exprt &op2, const bvt &prev_bv, bvt &next_bv)
 
void convert_with_struct (const struct_typet &type, const exprt &op1, const exprt &op2, const bvt &prev_bv, bvt &next_bv)
 
void convert_update_rec (const exprt::operandst &designator, std::size_t d, const typet &type, std::size_t offset, const exprt &new_value, bvt &bv)
 
virtual exprt bv_get_unbounded_array (const exprt &) const
 
exprt bv_get (const bvt &bv, const typet &type) const
 
exprt bv_get_cache (const exprt &expr) const
 
bool is_unbounded_array (const typet &type) const override
 
void post_process_quantifiers ()
 
offset_mapt build_offset_map (const struct_typet &src)
 
- Protected Member Functions inherited from arrayst
virtual void post_process_arrays ()
 
void add_array_constraint (const lazy_constraintt &lazy, bool refine=true)
 adds array constraints (refine=true...lazily for the refinement loop) More...
 
void add_array_constraints ()
 
void add_array_Ackermann_constraints ()
 
void add_array_constraints_equality (const index_sett &index_set, const array_equalityt &array_equality)
 
void add_array_constraints (const index_sett &index_set, const exprt &expr)
 
void add_array_constraints_if (const index_sett &index_set, const if_exprt &exprt)
 
void add_array_constraints_with (const index_sett &index_set, const with_exprt &expr)
 
void add_array_constraints_with (const index_sett &index_set, const with_exprt &expr, const exprt &index, const exprt &value)
 
void add_array_constraints_update (const index_sett &index_set, const update_exprt &expr)
 
void add_array_constraints_array_of (const index_sett &index_set, const array_of_exprt &exprt)
 
void update_index_map (bool update_all)
 
void update_index_map (std::size_t i)
 merge the indices into the root More...
 
void collect_arrays (const exprt &a)
 
void collect_indices ()
 
void collect_indices (const exprt &a)
 
- Protected Member Functions inherited from equalityt
virtual literalt equality2 (const exprt &e1, const exprt &e2)
 
virtual void add_equality_constraints ()
 
virtual void add_equality_constraints (const typestructt &typestruct)
 
- Protected Member Functions inherited from prop_conv_solvert
virtual bool get_bool (const exprt &expr, tvt &value) const
 get a boolean value from counter example if not valid More...
 
virtual literalt convert_bool (const exprt &expr)
 
virtual bool set_equality_to_true (const equal_exprt &expr)
 
virtual literalt get_literal (const irep_idt &symbol)
 
virtual void ignoring (const exprt &expr)
 

Protected Attributes

pointer_logict pointer_logic
 
unsigned object_bits
 
unsigned offset_bits
 
unsigned bits
 
postponed_listt postponed_list
 
- Protected Attributes inherited from boolbvt
bv_utilst bv_utils
 
functionst functions
 
boolbv_mapt map
 
bv_cachet bv_cache
 
quantifier_listt quantifier_list
 
numbering< irep_idtstring_numbering
 
- Protected Attributes inherited from arrayst
const namespacetns
 
array_equalitiest array_equalities
 
union_find< exprtarrays
 
index_mapt index_map
 
bool lazy_arrays
 
bool incremental_cache
 
std::list< lazy_constrainttlazy_array_constraints
 
std::map< exprt, bool > expr_map
 
std::set< std::size_t > update_indices
 
- Protected Attributes inherited from equalityt
typemapt typemap
 
- Protected Attributes inherited from prop_conv_solvert
bool post_processing_done = false
 
symbolst symbols
 
cachet cache
 
proptprop
 
- Protected Attributes inherited from messaget
message_handlertmessage_handler
 
mstreamt mstream
 

Additional Inherited Members

- Public Types inherited from boolbvt
enum  unbounded_arrayt { unbounded_arrayt::U_NONE, unbounded_arrayt::U_ALL, unbounded_arrayt::U_AUTO }
 
- Public Types inherited from arrayst
typedef equalityt SUB
 
- Public Types inherited from prop_conv_solvert
typedef std::map< irep_idt, literaltsymbolst
 
typedef std::unordered_map< exprt, literalt, irep_hashcachet
 
- Public Types inherited from decision_proceduret
enum  resultt { resultt::D_SATISFIABLE, resultt::D_UNSATISFIABLE, resultt::D_ERROR }
 
- Public Types inherited from messaget
enum  message_levelt {
  M_ERROR =1, M_WARNING =2, M_RESULT =4, M_STATUS =6,
  M_STATISTICS =8, M_PROGRESS =9, M_DEBUG =10
}
 
- Static Public Member Functions inherited from messaget
static unsigned eval_verbosity (const std::string &user_input, const message_levelt default_verbosity, message_handlert &dest)
 Parse a (user-)provided string as a verbosity level and set it as the verbosity of dest. More...
 
static commandt command (unsigned c)
 Create an ECMA-48 SGR (Select Graphic Rendition) command. More...
 
- Public Attributes inherited from boolbvt
unbounded_arrayt unbounded_array
 
boolbv_widtht boolbv_width
 
- Public Attributes inherited from prop_conv_solvert
bool use_cache = true
 
bool equality_propagation = true
 
bool freeze_all = false
 
- Static Public Attributes inherited from messaget
static eomt eom
 
static const commandt reset
 return to default formatting, as defined by the terminal More...
 
static const commandt red
 render text with red foreground color More...
 
static const commandt green
 render text with green foreground color More...
 
static const commandt yellow
 render text with yellow foreground color More...
 
static const commandt blue
 render text with blue foreground color More...
 
static const commandt magenta
 render text with magenta foreground color More...
 
static const commandt cyan
 render text with cyan foreground color More...
 
static const commandt bright_red
 render text with bright red foreground color More...
 
static const commandt bright_green
 render text with bright green foreground color More...
 
static const commandt bright_yellow
 render text with bright yellow foreground color More...
 
static const commandt bright_blue
 render text with bright blue foreground color More...
 
static const commandt bright_magenta
 render text with bright magenta foreground color More...
 
static const commandt bright_cyan
 render text with bright cyan foreground color More...
 
static const commandt bold
 render text with bold font More...
 
static const commandt faint
 render text with faint font More...
 
static const commandt italic
 render italic text More...
 
static const commandt underline
 render underlined text More...
 

Detailed Description

Definition at line 17 of file bv_pointers.h.

Member Typedef Documentation

◆ postponed_listt

typedef std::list<postponedt> bv_pointerst::postponed_listt
protected

Definition at line 63 of file bv_pointers.h.

◆ SUB

typedef boolbvt bv_pointerst::SUB
protected

Definition at line 28 of file bv_pointers.h.

Constructor & Destructor Documentation

◆ bv_pointerst()

bv_pointerst::bv_pointerst ( const namespacet _ns,
propt _prop 
)

Definition at line 82 of file bv_pointers.cpp.

Member Function Documentation

◆ add_addr()

void bv_pointerst::add_addr ( const exprt expr,
bvt bv 
)
protectedvirtual

Definition at line 718 of file bv_pointers.cpp.

◆ bv_get_rec()

exprt bv_pointerst::bv_get_rec ( const bvt bv,
const std::vector< bool > &  unknown,
std::size_t  offset,
const typet type 
) const
overrideprotectedvirtual

Reimplemented from boolbvt.

Definition at line 593 of file bv_pointers.cpp.

◆ convert_address_of_rec()

bool bv_pointerst::convert_address_of_rec ( const exprt expr,
bvt bv 
)
protected

Definition at line 94 of file bv_pointers.cpp.

◆ convert_bitvector()

bvt bv_pointerst::convert_bitvector ( const exprt expr)
overrideprotectedvirtual

Converts an expression into its gate-level representation and returns a vector of literals corresponding to the outputs of the Boolean circuit.

Parameters
exprExpression to convert
Returns
A vector of literals corresponding to the outputs of the Boolean circuit
Exceptions
bitvector_conversion_exceptiontraised if converting byte_extraction goes wrong. TODO: extend for other types of conversion exception (diffblue/cbmc#2103).

Reimplemented from boolbvt.

Definition at line 468 of file bv_pointers.cpp.

◆ convert_pointer_type()

bvt bv_pointerst::convert_pointer_type ( const exprt expr)
protectedvirtual

Definition at line 218 of file bv_pointers.cpp.

◆ convert_rest()

literalt bv_pointerst::convert_rest ( const exprt expr)
overrideprotectedvirtual

Reimplemented from boolbvt.

Definition at line 17 of file bv_pointers.cpp.

◆ do_postponed()

void bv_pointerst::do_postponed ( const postponedt postponed)
protected

Definition at line 734 of file bv_pointers.cpp.

◆ encode()

void bv_pointerst::encode ( std::size_t  object,
bvt bv 
)
protected

Definition at line 651 of file bv_pointers.cpp.

◆ offset_arithmetic() [1/3]

void bv_pointerst::offset_arithmetic ( bvt bv,
const mp_integer x 
)
protected

Definition at line 664 of file bv_pointers.cpp.

◆ offset_arithmetic() [2/3]

void bv_pointerst::offset_arithmetic ( bvt bv,
const mp_integer factor,
const exprt index 
)
protected

Definition at line 678 of file bv_pointers.cpp.

◆ offset_arithmetic() [3/3]

void bv_pointerst::offset_arithmetic ( bvt bv,
const mp_integer factor,
const bvt index_bv 
)
protected

Definition at line 694 of file bv_pointers.cpp.

◆ post_process()

void bv_pointerst::post_process ( )
overridevirtual

Reimplemented from boolbvt.

Definition at line 824 of file bv_pointers.cpp.

Member Data Documentation

◆ bits

unsigned bv_pointerst::bits
protected

Definition at line 30 of file bv_pointers.h.

◆ object_bits

unsigned bv_pointerst::object_bits
protected

Definition at line 30 of file bv_pointers.h.

◆ offset_bits

unsigned bv_pointerst::offset_bits
protected

Definition at line 30 of file bv_pointers.h.

◆ pointer_logic

pointer_logict bv_pointerst::pointer_logic
protected

Definition at line 25 of file bv_pointers.h.

◆ postponed_list

postponed_listt bv_pointerst::postponed_list
protected

Definition at line 64 of file bv_pointers.h.


The documentation for this class was generated from the following files: