51#define UNEXPECTEDCASE(S) PRECONDITION_WITH_DIAGNOSTICS(false, S);
54#define SMT2_TODO(S) PRECONDITION_WITH_DIAGNOSTICS(false, "TODO: " S)
63 : use_FPA_theory(
false),
64 use_array_of_bool(
false),
66 use_check_sat_assuming(
false),
68 use_lambda_for_array(
false),
78 no_boolean_variables(0)
169 "variable number shall be within bounds");
175 out <<
"; SMT 2" <<
"\n";
184 out <<
"; Generated for the CPROVER SMT2 solver\n";
break;
194 out <<
"(set-info :source \"" <<
notes <<
"\")" <<
"\n";
196 out <<
"(set-option :produce-models true)" <<
"\n";
202 out <<
"(set-logic " <<
logic <<
")" <<
"\n";
215 out <<
"(check-sat-assuming (";
225 out <<
"; assumptions\n";
236 out <<
"(check-sat)\n";
244 out <<
"(get-value (" <<
id <<
"))"
252 out <<
"; end of SMT2 file"
290 std::size_t number = 0;
291 std::size_t
h=pointer_width-1;
296 const typet &type = o.type();
308 out <<
"(assert (=> (= "
309 <<
"((_ extract " <<
h <<
" " << l <<
") ";
312 <<
"(= " <<
id <<
" ";
336 return it->second.value;
346 return it->second.value;
361 else if(op.is_false())
409 if(!src.
id().empty())
413 if(s.size()>=2 && s[0]==
'#' && s[1]==
'b')
418 else if(s.size()>=2 && s[0]==
'#' && s[1]==
'x')
429 else if(src.
get_sub().size()==2 &&
434 else if(src.
get_sub().size()==3 &&
437 src.
get_sub()[1].id_string().substr(0, 2)==
"bv")
441 else if(src.
get_sub().size()==4 &&
465 else if(src.
get_sub().size()==4 &&
473 else if(src.
get_sub().size()==4 &&
481 else if(src.
get_sub().size()==4 &&
503 result.
type() = type;
519 "smt2_convt::parse_literal should not be of unsupported type " +
545 operands.emplace_back(
found_op->second);
558 operands.emplace_back(
found_op->second);
584 long index =
tempint.to_long();
588 else if(src.
get_sub().size()==2 &&
589 src.
get_sub()[0].get_sub().size()==3 &&
590 src.
get_sub()[0].get_sub()[0].id()==
"as" &&
591 src.
get_sub()[0].get_sub()[1].id()==
"const")
628 if(components.empty())
636 for(std::size_t i=0; i<components.size(); i++)
646 src.
get_sub().size() > j,
"insufficient number of component values");
663 std::size_t offset=0;
665 for(std::size_t i=0; i<components.size(); i++)
674 "struct component bits shall be within struct bit vector");
697 for(
const auto &binding : src.
get_sub()[1].get_sub())
699 const irep_idt &name = binding.get_sub()[0].id();
784 const std::size_t
max_objects = std::size_t(1) << object_bits;
790 "too many addressed objects: maximum number of objects is set to 2^n=" +
792 " (with n=" + std::to_string(object_bits) +
"); " +
793 "use the `--object-bits n` option to increase the maximum number"};
796 out <<
"(concat (_ bv" <<
object_id <<
" " << object_bits <<
")"
797 <<
" (_ bv0 " <<
boolbv_width(result_type) - object_bits <<
"))";
839 "member expression operand shall have struct type");
871 "operand of address of expression should not be of kind " +
907 out <<
"; convert\n";
908 out <<
"; Converting var_no " << l.
var_no() <<
" with expr ID of "
918 out <<
"(declare-fun ";
920 out <<
" () Bool)\n";
921 out <<
"(assert (= ";
933 out <<
"(define-fun " << identifier <<
" () Bool ";
961 const auto identifier =
992 if(identifier.empty())
1017 std::string result =
"|";
1019 for(
auto ch : identifier)
1027 result+=std::to_string(
ch);
1047 return "f"+std::to_string(spec.
width())+
"_"+std::to_string(spec.
f);
1124 !expr.
operands().empty(),
"non-symbol expressions shall have operands");
1130 for(
const auto &op : expr.
operands())
1172 DATA_INVARIANT(!
id.empty(),
"nondet symbol must have identifier");
1205 "concatenation over a single operand should have matching types",
1219 "given expression should have at least two operands",
1237 for(
const auto &op : expr.
operands())
1300 out <<
"(fp.isNegative ";
1318 "sign should not be applied to unsupported type",
1339 "logical and, or, and xor expressions should have Boolean type");
1342 "logical and, or, and xor expressions should have at least two operands");
1344 out <<
"(" << expr.
id();
1345 for(
const auto &op : expr.
operands())
1357 implies_expr.is_boolean(),
"implies expression should have Boolean type");
1370 not_expr.is_boolean(),
"not expression should have Boolean type");
1382 "operands of equal expression shall have same type");
1403 "operands of not equal expression shall have same type");
1420 "operands of float equal and not equal expressions shall have same type");
1503 "array of expression shall have array type");
1507 out <<
"((as const ";
1515 defined_expressionst::const_iterator it =
1527 "array_comprehension expression shall have array type");
1531 out <<
"(lambda ((";
1612 "unsupported distance type for " +
shift_expr.id_string() +
": " +
1619 "unsupported type for " +
shift_expr.id_string() +
": " +
1634 out <<
"((_ rotate_left";
1636 out <<
"((_ rotate_right";
1650 "distance type for " +
shift_expr.id_string() +
"must be constant");
1659 "unsupported type for " +
shift_expr.id_string() +
": " +
1680 out <<
"(object-address ";
1723 "operand of pointer offset expression shall be of pointer type");
1750 "pointer object expressions should be of pointer type");
1756 out <<
"((_ zero_extend " <<
ext <<
") ";
1758 out <<
"((_ extract "
1759 << pointer_width-1 <<
" "
1775 out <<
"(= ((_ extract "
1776 << pointer_width-1 <<
" "
1797 out <<
"(= ((_ extract " << i <<
" " << i <<
") ";
1803 out <<
"(= ((_ extract 0 0) ";
1837 out <<
"(= ((_ extract 0 0) ";
1846 SMT2_TODO(
"smt2: extractbits with non-constant index");
1855 out <<
"((_ repeat " << times <<
") ";
1863 false,
"byte_extract ops should be lowered in prepare_for_convert_expr");
1869 false,
"byte_update ops should be lowered in prepare_for_convert_expr");
1881 out <<
"(ite (bvslt ";
1894 out <<
"(ite (bvslt ";
1929 out <<
"(fp.isNaN ";
1953 out <<
"(not (fp.isNaN ";
1957 out <<
"(not (fp.isInfinite ";
1981 out <<
"(fp.isInfinite ";
2003 out <<
"(fp.isNormal ";
2026 "overflow plus and overflow minus expressions shall be of Boolean type");
2036 out <<
"(let ((?sum (";
2037 out << (subtract?
"bvsub":
"bvadd");
2038 out <<
" ((_ sign_extend 1) ";
2041 out <<
" ((_ sign_extend 1) ";
2056 out <<
" ((_ extract " << width - 1 <<
" 0) ?sum) ";
2061 "((_ extract " << width <<
" " << width <<
") ?sum) "
2062 "((_ extract " << (width-1) <<
" " << (width-1) <<
") ?sum)";
2076 out <<
"(let ((?sum (" << (subtract ?
"bvsub" :
"bvadd");
2077 out <<
" ((_ zero_extend 1) ";
2080 out <<
" ((_ zero_extend 1) ";
2093 out <<
" ((_ extract " << width - 1 <<
" 0) ?sum) ";
2097 out <<
"((_ extract " << width <<
" " << width <<
") ?sum)";
2108 "overflow check should not be performed on unsupported type",
2122 "overflow mult expression shall be of Boolean type");
2132 out <<
"(let ( (prod (bvmul ((_ sign_extend " << width <<
") ";
2134 out <<
") ((_ sign_extend " << width <<
") ";
2149 out <<
" ((_ extract " << width - 1 <<
" 0) prod) ";
2153 out <<
"(or (bvsge prod (_ bv" <<
power(2, width-1) <<
" "
2155 out <<
" (bvslt prod (bvneg (_ bv" <<
power(2, width - 1) <<
" "
2156 << width * 2 <<
"))))";
2167 out <<
"(let ((prod (bvmul ((_ zero_extend " << width <<
") ";
2169 out <<
") ((_ zero_extend " << width <<
") ";
2184 out <<
" ((_ extract " << width - 1 <<
" 0) prod) ";
2188 out <<
"(bvuge prod (_ bv" <<
power(2, width) <<
" " << width * 2 <<
"))";
2200 "overflow check should not be performed on unsupported type",
2215 out <<
"(let ((?sum (";
2216 out << (subtract ?
"bvsub" :
"bvadd");
2217 out <<
" ((_ sign_extend 1) ";
2220 out <<
" ((_ sign_extend 1) ";
2227 << width <<
" " << width
2230 << (width - 1) <<
" " << (width - 1) <<
") ?sum)";
2234 out <<
"((_ extract " << width - 1 <<
" 0) ?sum) ";
2237 out <<
"(ite (= ((_ extract " << width <<
" " << width <<
") ?sum) #b0) ";
2249 out <<
"(let ((?sum (" << (subtract ?
"bvsub" :
"bvadd");
2250 out <<
" ((_ zero_extend 1) ";
2253 out <<
" ((_ zero_extend 1) ";
2258 out <<
"(ite (= ((_ extract " << width <<
" " << width <<
") ?sum) #b0) ";
2261 out <<
" ((_ extract " << width - 1 <<
" 0) ?sum) ";
2275 "saturating_plus/minus on unsupported type",
2295 throw "MathSAT does not support quantifiers";
2330 const auto &variables =
let_expr.variables();
2331 const auto &values =
let_expr.values();
2336 for(
auto &binding :
make_range(variables).zip(values))
2358 "smt2_convt::convert_expr: '" + expr.
id_string() +
2359 "' is not yet supported");
2367 "operand of byte swap expression shall have same type as the expression");
2370 out <<
"(let ((bswap_op ";
2378 const std::size_t width =
2386 "bit width indicated by type of bswap expression should be a multiple "
2387 "of the number of bits per byte");
2398 for(std::size_t
byte = 0;
byte < bytes;
byte++)
2402 out <<
"(bswap_byte_" <<
byte <<
' ';
2413 for(std::size_t
byte = 0;
byte < bytes;
byte++)
2414 out <<
" bswap_byte_" <<
byte;
2468 "smt2_convt::convert_expr should not be applied to unsupported type",
2504 out <<
"(not (fp.isZero ";
2549 out <<
"((_ sign_extend ";
2551 out <<
"((_ zero_extend ";
2576 out <<
"(let ((?tcop ";
2584 out <<
"((_ sign_extend "
2599 out <<
" (ite (and ";
2623 defined_expressionst::const_iterator it =
2638 "typecast unexpected "+
src_type.id_string()+
" -> "+
2645 "typecast unexpected "+
src_type.id_string()+
" -> "+
2657 out <<
" (concat (_ bv1 "
2660 "(_ bv0 " << spec.
width <<
")";
2676 out <<
"((_ sign_extend ";
2698 SMT2_TODO(
"can't convert non-constant integer to bitvector");
2708 "bit vector with of source and destination type shall be equal");
2715 "bit vector with of source and destination type shall be equal");
2725 "bit vector with of source and destination type shall be equal");
2743 std::ostringstream
e_str;
2745 <<
" src == " <<
format(src);
2778 "from_width should be smaller than to_integer_bits as other case "
2779 "have been handled above");
2782 out <<
"(_ zero_extend "
2789 out <<
"((_ sign_extend "
2801 out <<
"(concat (concat"
2815 out <<
"(let ((?tcop ";
2823 out <<
"((_ extract "
2832 "to_integer_bits should be greater than from_integer_bits as the"
2833 "other case has been handled above");
2834 out <<
"((_ sign_extend "
2846 out <<
"((_ extract "
2855 "to_fraction_bits should be greater than from_fraction_bits as the"
2856 "other case has been handled above");
2857 out <<
"(concat ((_ extract "
2891 out <<
"((_ sign_extend "
2935 a.build(significand, exponent);
2943 a.build(significand, exponent);
3041 out <<
"((_ to_fp " <<
dst.get_e() <<
" "
3042 <<
dst.get_f() + 1 <<
") ";
3072 out <<
"((_ to_fp_unsigned " <<
dst.get_e() <<
" "
3073 <<
dst.get_f() + 1 <<
") ";
3090 out <<
"((_ to_fp " <<
dst.get_e() <<
" "
3091 <<
dst.get_f() + 1 <<
") ";
3157 components.size() == expr.
operands().size(),
3158 "number of struct components as indicated by the struct type shall be equal"
3159 "to the number of operands of the struct expression");
3161 DATA_INVARIANT(!components.empty(),
"struct shall have struct components");
3171 for(struct_typet::componentst::const_iterator
3172 it=components.begin();
3173 it!=components.end();
3190 else if(op.type().id() ==
ID_bool)
3198 for(std::size_t i = components.size(); i > 1; i--)
3230 out <<
"(let ((?far ";
3238 out <<
"(select ?far ";
3270 "total_width should be greater than member_width as member_width can be"
3271 "at most as large as total_width and the other case has been handled "
3297 out <<
"(_ bv" << value
3298 <<
" " << width <<
")";
3306 out <<
"(_ bv" << v <<
" " << spec.
width <<
")";
3328 out <<
"((_ to_fp " << e <<
" " << f <<
")"
3334 out <<
"(_ NaN " << e <<
" " << f <<
")";
3339 out <<
"(_ -oo " << e <<
" " << f <<
")";
3341 out <<
"(_ +oo " << e <<
" " << f <<
")";
3361 out <<
"(_ bv" << v <<
" " << spec.
width() <<
")";
3378 out <<
"(_ bv" << value <<
" " << width <<
")";
3404 size_t pos=value.find(
"/");
3406 if(
pos==std::string::npos)
3407 out << value <<
".0";
3410 out <<
"(/ " << value.substr(0,
pos) <<
".0 "
3411 << value.substr(
pos+1) <<
".0)";
3423 out <<
"(- " << value.substr(1, std::string::npos) <<
')';
3443 "unsupported type for euclidean_mod: " + expr.
type().
id_string());
3476 out <<
"(let ((?obj ((_ extract "
3477 << pointer_width-1 <<
" "
3492 out <<
" (= (_ bv" <<
object
3618 for(
const auto &op : expr.
operands())
3663 "one of the operands should have pointer type");
3667 base_type.id() !=
ID_empty,
"no pointer arithmetic over void pointers");
3674 out <<
"(let ((?pointerop ";
3685 <<
") ?pointerop) ";
3686 out <<
"(bvadd ((_ extract " <<
offset_bits - 1 <<
" 0) ?pointerop) ";
3735 out <<
"roundNearestTiesToEven";
3737 out <<
"roundTowardNegative";
3739 out <<
"roundTowardPositive";
3741 out <<
"roundTowardZero";
3745 "Rounding mode should have value 0, 1, 2, or 3",
3753 out <<
"(ite (= (_ bv0 " << width <<
") ";
3755 out <<
") roundNearestTiesToEven ";
3757 out <<
"(ite (= (_ bv1 " << width <<
") ";
3759 out <<
") roundTowardNegative ";
3761 out <<
"(ite (= (_ bv2 " << width <<
") ";
3763 out <<
") roundTowardPositive ";
3766 out <<
"roundTowardZero";
3800 "type should not be one of the unsupported types",
3827 base_type.id() !=
ID_empty,
"no pointer arithmetic over void pointers");
3837 "bitvector width of operand shall be equal to the bitvector width of "
3890 "type of ieee floating point expression shall be floatbv");
3926 out <<
"((_ extract " << spec.
width-1 <<
" 0) ";
3954 "type of ieee floating point expression shall be floatbv");
3977 tmp.operands().pop_back();
3985 "expression should have been converted to a variant with two operands");
4011 out <<
"((_ extract "
4033 for(
const auto &op : expr.
operands())
4049 "type of ieee floating point expression shall be floatbv");
4069 "type of ieee floating point expression shall be floatbv");
4083 "smt2_convt::convert_floatbv_rem to be implemented when not using "
4094 std::size_t s=expr.
operands().size();
4098 tmp.operands().resize(s-2);
4109 "with expression should have been converted to a version with three "
4138 out <<
"(let ((distance? ";
4163 out <<
"distance?)) ";
4169 out <<
") distance?)))";
4183 "struct should have accessed component");
4203 out <<
"(let ((?withop ";
4218 << m.
width <<
") ?withop) ";
4227 out <<
" ((_ extract " << (m.
offset - 1) <<
" 0) ?withop))";
4232 out <<
"(concat (concat "
4236 out <<
") ((_ extract " << (m.
offset-1) <<
" 0) ?withop)";
4261 "total width should be greater than member_width as member_width is at "
4262 "most as large as total_width and the other case has been handled "
4265 out <<
"((_ extract "
4296 out <<
" (bvnot (bvshl";
4322 "with expects struct, union, or array type, but got "+
4330 SMT2_TODO(
"smt2_convt::convert_update to be implemented");
4400 false,
"index with unsupported array type: " +
array_op_type.id_string());
4415 struct_type.has_component(name),
"struct should have accessed component");
4447 width != 0,
"failed to get union member width");
4451 out <<
"((_ extract "
4461 "convert_member on an unexpected type "+
struct_op_type.id_string());
4516 for(std::size_t i=components.size(); i>1; i--)
4545 "floatbv expressions should be flattened when using FPA theory");
4583 "cannot unflatten arrays of non-constant size");
4590 out <<
"((as const ";
4596 <<
"0) ?ufop" <<
nesting <<
")";
4607 <<
") ?ufop" <<
nesting <<
")";
4640 std::size_t offset=0;
4643 for(struct_typet::componentst::const_iterator
4644 it=components.begin();
4645 it!=components.end();
4656 << offset <<
") ?ufop" <<
nesting <<
")";
4681 for(
const auto &op : expr.
operands())
4686 if(expr.
id()==
ID_or && !value)
4688 for(
const auto &op : expr.
operands())
4731 out <<
"; set_to true (equal)\n";
4761 out <<
')' <<
')' <<
'\n';
4776 out <<
"(_ BitVec " << width <<
")";
4795 out <<
"; set_to " << (value?
"true":
"false") <<
"\n"
4866 "lower_byte_operators should remove all byte operators");
4878 it.next_sibling_or_parent();
4886 it.next_sibling_or_parent();
4911 for(
const auto &symbol :
q_expr.variables())
4913 const auto identifier = symbol.get_identifier();
4915 id.type = symbol.type();
4923 for(
const auto &op : expr.
operands())
4938 identifier=
"nondet_"+
4943 if(
id.type.is_nil())
4945 id.type=expr.
type();
4950 out <<
"; find_symbols\n";
4992 out <<
"; the following is a substitute for lambda i. x\n";
4993 out <<
"(declare-fun " <<
id <<
" () ";
5000 out <<
"(assert (forall ((i ";
5002 out <<
")) (= (select " <<
id <<
" i) ";
5032 out <<
"(declare-fun " <<
id <<
" () ";
5036 out <<
"; the following is a substitute for lambda i . x(i)\n";
5037 out <<
"; universally quantified initialization of the array\n";
5038 out <<
"(assert (forall ((";
5049 out <<
")) (= (select " <<
id <<
" ";
5075 out <<
"; the following is a substitute for an array constructor" <<
"\n";
5076 out <<
"(declare-fun " <<
id <<
" () ";
5082 for(std::size_t i = 0; i < expr.
operands().size(); i++)
5084 out <<
"(assert (= (select " <<
id <<
" ";
5115 out <<
"; the following is a substitute for a string" <<
"\n";
5116 out <<
"(declare-fun " <<
id <<
" () ";
5120 for(std::size_t i=0; i<
tmp.operands().size(); i++)
5122 out <<
"(assert (= (select " <<
id <<
' ';
5126 out <<
"))" <<
"\n";
5139 out <<
"(declare-fun " <<
id <<
" () ";
5175 if(
bvfp_set.insert(function).second)
5177 out <<
"; this is a model for " << expr.
id() <<
" : "
5180 <<
"(define-fun " << function <<
" (";
5182 for(std::size_t i = 0; i < expr.
operands().size(); i++)
5186 out <<
"(op" << i <<
' ';
5196 for(std::size_t i = 0; i <
tmp1.operands().size(); i++)
5222 out <<
"(declare-fun " <<
id <<
" () ";
5228 out <<
"(assert (= ";
5240 irep_idt function =
"initial-state";
5244 out <<
"(declare-fun " << function <<
" (";
5257 out <<
"(declare-fun " << function <<
" (";
5275 :
"state-writeable-object";
5279 out <<
"(declare-fun " << function <<
" (";
5298 out <<
"(declare-fun " << function <<
" (";
5316 out <<
"(declare-fun " << function <<
" (";
5334 out <<
"(declare-fun " << function <<
" (";
5352 out <<
"(declare-fun " << function <<
" (";
5367 out <<
"(declare-fun " << function <<
" (";
5382 out <<
"(declare-fun " << function <<
" (";
5399 out <<
"(declare-fun " << function <<
" (";
5410 irep_idt function =
"object-address";
5414 out <<
"(declare-fun " << function <<
" (String) ";
5425 out <<
"(declare-fun " << function <<
" (";
5440 out <<
"(declare-fun " << function <<
" (";
5481 out <<
"(_ BitVec 1)";
5501 out <<
"(_ BitVec " << width <<
")";
5516 "failed to get width of union");
5518 out <<
"(_ BitVec " << width <<
")";
5550 out <<
"(_ FloatingPoint "
5572 out <<
"(_ BitVec " << width <<
")";
5677 out <<
"))))" <<
"\n";
5694 for(struct_union_typet::componentst::const_iterator
5695 it=components.begin();
5696 it!=components.end();
5712 for(struct_union_typet::componentst::const_iterator
5713 it2=components.begin();
5714 it2!=components.end();
5722 <<
it2->get_name() <<
" s) ";
5726 out <<
"))" <<
"\n";
5744 for(
const auto &
param : parameters)
5782 out <<
"(declare-sort state 0)\n";
API to expression classes for bitvectors.
const replication_exprt & to_replication_expr(const exprt &expr)
Cast an exprt to a replication_exprt.
const shift_exprt & to_shift_expr(const exprt &expr)
Cast an exprt to a shift_exprt.
const popcount_exprt & to_popcount_expr(const exprt &expr)
Cast an exprt to a popcount_exprt.
const extractbits_exprt & to_extractbits_expr(const exprt &expr)
Cast an exprt to an extractbits_exprt.
bool can_cast_expr< minus_overflow_exprt >(const exprt &base)
const find_first_set_exprt & to_find_first_set_expr(const exprt &expr)
Cast an exprt to a find_first_set_exprt.
bool can_cast_expr< overflow_result_exprt >(const exprt &base)
const bitnot_exprt & to_bitnot_expr(const exprt &expr)
Cast an exprt to a bitnot_exprt.
const bswap_exprt & to_bswap_expr(const exprt &expr)
Cast an exprt to a bswap_exprt.
const count_leading_zeros_exprt & to_count_leading_zeros_expr(const exprt &expr)
Cast an exprt to a count_leading_zeros_exprt.
const bitreverse_exprt & to_bitreverse_expr(const exprt &expr)
Cast an exprt to a bitreverse_exprt.
const extractbit_exprt & to_extractbit_expr(const exprt &expr)
Cast an exprt to an extractbit_exprt.
const count_trailing_zeros_exprt & to_count_trailing_zeros_expr(const exprt &expr)
Cast an exprt to a count_trailing_zeros_exprt.
const bv_typet & to_bv_type(const typet &type)
Cast a typet to a bv_typet.
const fixedbv_typet & to_fixedbv_type(const typet &type)
Cast a typet to a fixedbv_typet.
const bitvector_typet & to_bitvector_type(const typet &type)
Cast a typet to a bitvector_typet.
const floatbv_typet & to_floatbv_type(const typet &type)
Cast a typet to a floatbv_typet.
const unsignedbv_typet & to_unsignedbv_type(const typet &type)
Cast a typet to an unsignedbv_typet.
const signedbv_typet & to_signedbv_type(const typet &type)
Cast a typet to a signedbv_typet.
bool has_byte_operator(const exprt &src)
Return true iff src or one of its operands contain a byte extract or byte update expression.
Expression classes for byte-level operators.
const byte_update_exprt & to_byte_update_expr(const exprt &expr)
exprt lower_byte_extract(const byte_extract_exprt &src, const namespacet &ns)
Rewrite a byte extract expression to more fundamental operations.
const byte_extract_exprt & to_byte_extract_expr(const exprt &expr)
exprt lower_byte_update(const byte_update_exprt &src, const namespacet &ns)
Rewrite a byte update expression to more fundamental operations.
typet c_bit_field_replacement_type(const c_bit_field_typet &src, const namespacet &ns)
bitvector_typet index_type()
unsignedbv_typet size_type()
pointer_typet pointer_type(const typet &subtype)
const c_bit_field_typet & to_c_bit_field_type(const typet &type)
Cast a typet to a c_bit_field_typet.
const c_enum_typet & to_c_enum_type(const typet &type)
Cast a typet to a c_enum_typet.
const c_enum_tag_typet & to_c_enum_tag_type(const typet &type)
Cast a typet to a c_enum_tag_typet.
const union_typet & to_union_type(const typet &type)
Cast a typet to a union_typet.
const c_bool_typet & to_c_bool_type(const typet &type)
Cast a typet to a c_bool_typet.
const union_tag_typet & to_union_tag_type(const typet &type)
Cast a typet to a union_tag_typet.
Operator to return the address of an object.
ait supplies three of the four components needed: an abstract interpreter (in this case handling func...
Thrown when an unexpected error occurs during the analysis (e.g., when the SAT solver returns an erro...
Pointer-typed bitvector constant annotated with the pointer expression that the bitvector is the nume...
Array constructor from list of elements.
const exprt & size() const
const typet & element_type() const
The type of the elements of the array.
A base class for binary expressions.
A base class for relations, i.e., binary predicates whose two operands have the same type.
Bit-wise negation of bit-vectors.
const membert & get_member(const struct_typet &type, const irep_idt &member) const
The byte swap expression.
std::vector< parametert > parameterst
struct configt::bv_encodingt bv_encoding
A constant literal expression.
const irep_idt & get_value() const
resultt
Result of running the decision procedure.
dstringt has one field, an unsigned integer no which is an index into a static table of strings.
Boute's Euclidean definition of Modulo – to match SMT-LIB2.
Base class for all expressions.
std::vector< exprt > operandst
bool has_operands() const
Return true if there is at least one operand.
bool is_true() const
Return whether the expression is a constant representing true.
bool is_boolean() const
Return whether the expression represents a Boolean.
bool is_false() const
Return whether the expression is a constant representing false.
bool is_zero() const
Return whether the expression is a constant representing 0.
bool is_constant() const
Return whether the expression is a constant.
typet & type()
Return the type of the expression.
void visit_post(std::function< void(exprt &)>)
These are post-order traversal visitors, i.e., the visitor is executed on a node after its children h...
The Boolean constant false.
std::size_t get_fraction_bits() const
Fixed-width bit-vector with signed fixed-point interpretation.
Semantic type conversion from/to floating-point formats.
Fixed-width bit-vector with IEEE floating-point interpretation.
IEEE floating-point operations These have two data operands (op0 and op1) and one rounding mode (op2)...
std::size_t width() const
static ieee_floatt plus_infinity(const ieee_float_spect &_spec)
static ieee_floatt NaN(const ieee_float_spect &_spec)
static ieee_floatt minus_infinity(const ieee_float_spect &_spec)
The trinary if-then-else operator.
There are a large number of kinds of tree structured or tree-like data in CPROVER.
std::string pretty(unsigned indent=0, unsigned max_indent=0) const
const irep_idt & get(const irep_idt &name) const
const std::string & id_string() const
const irep_idt & id() const
Evaluates to true if the operand is finite.
Evaluates to true if the operand is infinite.
Evaluates to true if the operand is NaN.
Evaluates to true if the operand is a normal number.
Extract member of struct or union.
Modulo defined as lhs-(rhs * truncate(lhs/rhs)).
Binary multiplication Associativity is not specified.
const union_typet & follow_tag(const union_tag_typet &) const
Follow type tag of union type.
A namespacet is essentially one or two symbol tables bound together, to allow for symbol lookups in t...
Expression for finding the size (in bytes) of the object a pointer points to.
The plus expression Associativity is not specified.
const mp_integer & get_invalid_object() const
numberingt< exprt, irep_hash > objects
exprt pointer_expr(const pointert &pointer, const pointer_typet &type) const
Convert an (object,offset) pair to an expression.
void get_dynamic_objects(std::vector< mp_integer > &objects) const
mp_integer add_object(const exprt &expr)
The pointer type These are both 'bitvector_typet' (they have a width) and 'type_with_subtypet' (they ...
A base class for quantifier expressions.
A base class for shift and rotate operators.
Sign of an expression Predicate is true if _op is negative, false otherwise.
void convert_relation(const binary_relation_exprt &)
bool use_lambda_for_array
void convert_type(const typet &)
void unflatten(wheret, const typet &, unsigned nesting=0)
bool use_array_theory(const exprt &)
void find_symbols(const exprt &expr)
std::size_t number_of_solver_calls
void convert_typecast(const typecast_exprt &expr)
void write_footer()
Writes the end of the SMT file to the smt_convt::out stream.
tvt l_get(literalt l) const
void convert_floatbv_rem(const binary_exprt &expr)
std::unordered_map< irep_idt, irept > current_bindings
std::set< irep_idt > bvfp_set
void convert_address_of_rec(const exprt &expr, const pointer_typet &result_type)
void push() override
Unimplemented.
void convert_is_dynamic_object(const unary_exprt &)
void convert_literal(const literalt)
void convert_floatbv_div(const ieee_float_op_exprt &expr)
void convert_string_literal(const std::string &)
std::size_t get_number_of_solver_calls() const override
Return the number of incremental solver calls.
void convert_floatbv_mult(const ieee_float_op_exprt &expr)
boolbv_widtht boolbv_width
void convert_constant(const constant_exprt &expr)
std::string floatbv_suffix(const exprt &) const
void flatten2bv(const exprt &)
void convert_div(const div_exprt &expr)
exprt lower_byte_operators(const exprt &expr)
Lower byte_update and byte_extract operations within expr.
std::string type2id(const typet &) const
void convert_rounding_mode_FPA(const exprt &expr)
Converting a constant or symbolic rounding mode to SMT-LIB.
void convert_floatbv_typecast(const floatbv_typecast_exprt &expr)
struct_exprt parse_struct(const irept &s, const struct_typet &type)
void convert_mult(const mult_exprt &expr)
exprt prepare_for_convert_expr(const exprt &expr)
Perform steps necessary before an expression is passed to convert_expr.
exprt get(const exprt &expr) const override
Return expr with variables replaced by values from satisfying assignment if available.
std::string decision_procedure_text() const override
Return a textual description of the decision procedure.
void convert_floatbv_minus(const ieee_float_op_exprt &expr)
bool use_check_sat_assuming
std::map< object_size_exprt, irep_idt > object_sizes
void define_object_size(const irep_idt &id, const object_size_exprt &expr)
datatype_mapt datatype_map
void convert_mod(const mod_exprt &expr)
static std::string convert_identifier(const irep_idt &identifier)
void convert_floatbv_plus(const ieee_float_op_exprt &expr)
void convert_struct(const struct_exprt &expr)
std::unordered_map< irep_idt, bool > set_values
The values which boolean identifiers have been smt2_convt::set_to or in other words those which are a...
smt2_convt(const namespacet &_ns, const std::string &_benchmark, const std::string &_notes, const std::string &_logic, solvert _solver, std::ostream &_out)
void convert_member(const member_exprt &expr)
void convert_euclidean_mod(const euclidean_mod_exprt &expr)
void convert_index(const index_exprt &expr)
pointer_logict pointer_logic
exprt handle(const exprt &expr) override
Generate a handle, which is an expression that has the same value as the argument in any model that i...
void print_assignment(std::ostream &out) const override
Print satisfying assignment to out.
void walk_array_tree(std::unordered_map< int64_t, exprt > *operands_map, const irept &src, const array_typet &type)
This function walks the SMT output and populates a map with index/value pairs for the array.
void set_to(const exprt &expr, bool value) override
For a Boolean expression expr, add the constraint 'expr' if value is true, otherwise add 'not expr'.
exprt parse_rec(const irept &s, const typet &type)
void convert_union(const union_exprt &expr)
exprt parse_union(const irept &s, const union_typet &type)
exprt parse_array(const irept &s, const array_typet &type)
This function is for parsing array output from SMT solvers when "(get-value |???|)" returns an array ...
std::vector< bool > boolean_assignment
void flatten_array(const exprt &)
produce a flat bit-vector for a given array of fixed size
void convert_with(const with_exprt &expr)
std::vector< exprt > assumptions
void convert_plus(const plus_exprt &expr)
defined_expressionst defined_expressions
void pop() override
Currently, only implements a single stack element (no nested contexts)
void find_symbols_rec(const typet &type, std::set< irep_idt > &recstack)
void convert_update(const update_exprt &)
std::set< irep_idt > state_fkt_declared
identifier_mapt identifier_map
void convert_minus(const minus_exprt &expr)
void convert_expr(const exprt &)
constant_exprt parse_literal(const irept &, const typet &type)
const smt2_symbolt & to_smt2_symbol(const exprt &expr)
std::size_t no_boolean_variables
smt2_identifierst smt2_identifiers
void convert_floatbv(const exprt &expr)
resultt dec_solve() override
Run the decision procedure to solve the problem.
literalt convert(const exprt &expr)
Struct constructor from list of elements.
Structure type, corresponds to C style structs.
const irep_idt & get_name() const
const componentst & components() const
std::vector< componentt > componentst
The Boolean constant true.
Semantic type conversion.
static exprt conditional_cast(const exprt &expr, const typet &type)
The type of an expression, extends irept.
Generic base class for unary expressions.
The unary minus expression.
Union constructor from single element.
Fixed-width bit-vector with unsigned binary interpretation.
Operator to update elements in structs and arrays.
Operator to update elements in structs and arrays.
bool has_prefix(const std::string &s, const std::string &prefix)
Forward depth-first search iterators These iterators' copy operations are expensive,...
exprt make_binary(const exprt &expr)
splits an expression with >=3 operands into nested binary expressions
bool is_null_pointer(const constant_exprt &expr)
Returns true if expr has a pointer type and a value NULL; it also returns true when expr has value ze...
Deprecated expression utility functions.
exprt float_bv(const exprt &src)
API to expression classes for floating-point arithmetic.
const ieee_float_op_exprt & to_ieee_float_op_expr(const exprt &expr)
Cast an exprt to an ieee_float_op_exprt.
const isnormal_exprt & to_isnormal_expr(const exprt &expr)
Cast an exprt to a isnormal_exprt.
const isinf_exprt & to_isinf_expr(const exprt &expr)
Cast an exprt to a isinf_exprt.
const isfinite_exprt & to_isfinite_expr(const exprt &expr)
Cast an exprt to a isfinite_exprt.
const isnan_exprt & to_isnan_expr(const exprt &expr)
Cast an exprt to a isnan_exprt.
const floatbv_typecast_exprt & to_floatbv_typecast_expr(const exprt &expr)
Cast an exprt to a floatbv_typecast_exprt.
const std::string & id2string(const irep_idt &d)
static std::string binary(const constant_exprt &src)
bool is_true(const literalt &l)
literalt const_literal(bool value)
const literal_exprt & to_literal_expr(const exprt &expr)
Cast a generic exprt to a literal_exprt.
API to expression classes for 'mathematical' expressions.
const quantifier_exprt & to_quantifier_expr(const exprt &expr)
Cast an exprt to a quantifier_exprt.
const function_application_exprt & to_function_application_expr(const exprt &expr)
Cast an exprt to a function_application_exprt.
const mathematical_function_typet & to_mathematical_function_type(const typet &type)
Cast a typet to a mathematical_function_typet.
const mp_integer string2integer(const std::string &n, unsigned base)
mp_integer bitwise_or(const mp_integer &a, const mp_integer &b)
bitwise 'or' of two nonnegative integers
const std::string integer2binary(const mp_integer &n, std::size_t width)
const element_address_exprt & to_element_address_expr(const exprt &expr)
Cast an exprt to an element_address_exprt.
const object_address_exprt & to_object_address_expr(const exprt &expr)
Cast an exprt to an object_address_exprt.
const address_of_exprt & to_address_of_expr(const exprt &expr)
Cast an exprt to an address_of_exprt.
const pointer_typet & to_pointer_type(const typet &type)
Cast a typet to a pointer_typet.
const pointer_offset_exprt & to_pointer_offset_expr(const exprt &expr)
Cast an exprt to a pointer_offset_exprt.
const pointer_object_exprt & to_pointer_object_expr(const exprt &expr)
Cast an exprt to a pointer_object_exprt.
const field_address_exprt & to_field_address_expr(const exprt &expr)
Cast an exprt to an field_address_exprt.
optionalt< mp_integer > member_offset(const struct_typet &type, const irep_idt &member, const namespacet &ns)
optionalt< mp_integer > pointer_offset_size(const typet &type, const namespacet &ns)
Compute the size of a type in bytes, rounding up to full bytes.
optionalt< exprt > size_of_expr(const typet &type, const namespacet &ns)
exprt pointer_offset(const exprt &pointer)
exprt object_size(const exprt &pointer)
exprt same_object(const exprt &p1, const exprt &p2)
Various predicates over pointers in programs.
Ranges: pair of begin and end iterators, which can be initialized from containers,...
ranget< iteratort > make_range(iteratort begin, iteratort end)
exprt simplify_expr(exprt src, const namespacet &ns)
static bool has_quantifier(const exprt &expr)
static bool is_zero_width(const typet &type, const namespacet &ns)
Returns true iff type has effective width of zero bits.
static bool is_smt2_simple_identifier(const std::string &identifier)
#define UNEXPECTEDCASE(S)
bool is_smt2_simple_symbol_character(char ch)
void solver(std::vector< framet > &frames, const std::unordered_set< symbol_exprt, irep_hash > &address_taken, const solver_optionst &solver_options, const namespacet &ns, std::vector< propertyt > &properties, std::size_t property_index)
#define CHECK_RETURN(CONDITION)
#define UNREACHABLE
This should be used to mark dead code.
#define DATA_INVARIANT(CONDITION, REASON)
This condition should be used to document that assumptions that are made on goto_functions,...
#define PRECONDITION(CONDITION)
#define INVARIANT_WITH_DIAGNOSTICS(CONDITION, REASON,...)
Same as invariant, with one or more diagnostics attached Diagnostics can be of any type that has a sp...
#define INVARIANT(CONDITION, REASON)
This macro uses the wrapper function 'invariant_violated_string'.
#define CHECK_RETURN_WITH_DIAGNOSTICS(CONDITION,...)
#define DATA_INVARIANT_WITH_DIAGNOSTICS(CONDITION, REASON,...)
#define UNREACHABLE_BECAUSE(REASON)
auto component(T &struct_expr, const irep_idt &name, const namespacet &ns) -> decltype(struct_expr.op0())
API to expression classes.
const struct_exprt & to_struct_expr(const exprt &expr)
Cast an exprt to a struct_exprt.
const array_of_exprt & to_array_of_expr(const exprt &expr)
Cast an exprt to an array_of_exprt.
const binary_relation_exprt & to_binary_relation_expr(const exprt &expr)
Cast an exprt to a binary_relation_exprt.
const unary_plus_exprt & to_unary_plus_expr(const exprt &expr)
Cast an exprt to a unary_plus_exprt.
const index_exprt & to_index_expr(const exprt &expr)
Cast an exprt to an index_exprt.
const mod_exprt & to_mod_expr(const exprt &expr)
Cast an exprt to a mod_exprt.
const mult_exprt & to_mult_expr(const exprt &expr)
Cast an exprt to a mult_exprt.
const array_comprehension_exprt & to_array_comprehension_expr(const exprt &expr)
Cast an exprt to a array_comprehension_exprt.
const ternary_exprt & to_ternary_expr(const exprt &expr)
Cast an exprt to a ternary_exprt.
const named_term_exprt & to_named_term_expr(const exprt &expr)
Cast an exprt to a named_term_exprt.
const typecast_exprt & to_typecast_expr(const exprt &expr)
Cast an exprt to a typecast_exprt.
const div_exprt & to_div_expr(const exprt &expr)
Cast an exprt to a div_exprt.
const binary_exprt & to_binary_expr(const exprt &expr)
Cast an exprt to a binary_exprt.
const plus_exprt & to_plus_expr(const exprt &expr)
Cast an exprt to a plus_exprt.
const notequal_exprt & to_notequal_expr(const exprt &expr)
Cast an exprt to an notequal_exprt.
const unary_exprt & to_unary_expr(const exprt &expr)
Cast an exprt to a unary_exprt.
const multi_ary_exprt & to_multi_ary_expr(const exprt &expr)
Cast an exprt to a multi_ary_exprt.
const let_exprt & to_let_expr(const exprt &expr)
Cast an exprt to a let_exprt.
const abs_exprt & to_abs_expr(const exprt &expr)
Cast an exprt to a abs_exprt.
const if_exprt & to_if_expr(const exprt &expr)
Cast an exprt to an if_exprt.
const member_exprt & to_member_expr(const exprt &expr)
Cast an exprt to a member_exprt.
const minus_exprt & to_minus_expr(const exprt &expr)
Cast an exprt to a minus_exprt.
const union_exprt & to_union_expr(const exprt &expr)
Cast an exprt to a union_exprt.
const constant_exprt & to_constant_expr(const exprt &expr)
Cast an exprt to a constant_exprt.
const not_exprt & to_not_expr(const exprt &expr)
Cast an exprt to an not_exprt.
const symbol_exprt & to_symbol_expr(const exprt &expr)
Cast an exprt to a symbol_exprt.
const with_exprt & to_with_expr(const exprt &expr)
Cast an exprt to a with_exprt.
const implies_exprt & to_implies_expr(const exprt &expr)
Cast an exprt to a implies_exprt.
const update_exprt & to_update_expr(const exprt &expr)
Cast an exprt to an update_exprt.
const unary_minus_exprt & to_unary_minus_expr(const exprt &expr)
Cast an exprt to a unary_minus_exprt.
const equal_exprt & to_equal_expr(const exprt &expr)
Cast an exprt to an equal_exprt.
const nondet_symbol_exprt & to_nondet_symbol_expr(const exprt &expr)
Cast an exprt to a nondet_symbol_exprt.
const sign_exprt & to_sign_expr(const exprt &expr)
Cast an exprt to a sign_exprt.
const euclidean_mod_exprt & to_euclidean_mod_expr(const exprt &expr)
Cast an exprt to a euclidean_mod_exprt.
const code_typet & to_code_type(const typet &type)
Cast a typet to a code_typet.
const struct_typet & to_struct_type(const typet &type)
Cast a typet to a struct_typet.
const struct_tag_typet & to_struct_tag_type(const typet &type)
Cast a typet to a struct_tag_typet.
const complex_typet & to_complex_type(const typet &type)
Cast a typet to a complex_typet.
const array_typet & to_array_type(const typet &type)
Cast a typet to an array_typet.
const struct_union_typet & to_struct_union_type(const typet &type)
Cast a typet to a struct_union_typet.
std::size_t unsafe_string2size_t(const std::string &str, int base)
const string_constantt & to_string_constant(const exprt &expr)