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Checkpoint.

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Signed-off-by: Christoph M. Wintersteiger <cwinter@microsoft.com>
This commit is contained in:
Christoph M. Wintersteiger 2013-02-04 23:18:55 +00:00
parent 313ccfbe8d
commit 12afbfe6db
1 changed files with 355 additions and 288 deletions
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643
src/api/ml/z3.ml
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@ -1097,6 +1097,7 @@ sig
val mk_const : context -> Symbol.symbol -> Sort.sort -> expr
val get_func_decl : expr -> FuncDecl.func_decl
val is_numeral : expr -> bool
end = struct
type expr = Expr of AST.ast
@ -1107,20 +1108,20 @@ end = struct
let s = Z3native.get_sort (context_gno ctx) obj in
let sk = (sort_kind_of_int (Z3native.get_sort_kind (context_gno ctx) s)) in
if (Z3native.is_algebraic_number (context_gno ctx) obj) then
(match (Arithmetic.create_algebraic_num ctx obj) with Arithmetic.AlgebraicNum(Arithmetic.Expr(e)) -> e)
(match (Arithmetic.AlgebraicNumbers.create_num ctx obj) with Arithmetic.AlgebraicNumbers.AlgebraicNum(Arithmetic.Expr(e)) -> e)
else
if (Z3native.is_numeral_ast (context_gno ctx) obj) &&
(sk == INT_SORT or sk == REAL_SORT or sk == BV_SORT) then
match sk with
| INT_SORT -> (match (Arithmetic.create_int_num ctx obj) with Arithmetic.IntNum(Arithmetic.IntExpr(Arithmetic.Expr(e))) -> e)
| REAL_SORT -> (match (Arithmetic.create_rat_num ctx obj) with Arithmetic.RatNum(Arithmetic.RealExpr(Arithmetic.Expr(e))) -> e)
| INT_SORT -> (match (Arithmetic.Integers.create_num ctx obj) with Arithmetic.Integers.IntNum(Arithmetic.Integers.IntExpr(Arithmetic.Expr(e))) -> e)
| REAL_SORT -> (match (Arithmetic.Reals.create_num ctx obj) with Arithmetic.Reals.RatNum(Arithmetic.Reals.RealExpr(Arithmetic.Expr(e))) -> e)
| BV_SORT -> (match (BitVectors.create_num ctx obj) with BitVectors.BitVecNum(BitVectors.BitVecExpr(e)) -> e)
| _ -> raise (Z3native.Exception "Unsupported numeral object")
else
match sk with
| BOOL_SORT -> (match (Booleans.create ctx obj) with Booleans.BoolExpr(e) -> e)
| INT_SORT -> (match (Arithmetic.create_int_expr ctx obj) with Arithmetic.IntExpr(Arithmetic.Expr(e)) -> e)
| REAL_SORT -> (match (Arithmetic.create_real_expr ctx obj) with Arithmetic.RealExpr(Arithmetic.Expr(e)) -> e)
| BOOL_SORT -> (match (Booleans.create_expr ctx obj) with Booleans.BoolExpr(e) -> e)
| INT_SORT -> (match (Arithmetic.Integers.create_expr ctx obj) with Arithmetic.Integers.IntExpr(Arithmetic.Expr(e)) -> e)
| REAL_SORT -> (match (Arithmetic.Reals.create_expr ctx obj) with Arithmetic.Reals.RealExpr(Arithmetic.Expr(e)) -> e)
| BV_SORT -> (match (BitVectors.create_expr ctx obj) with BitVectors.BitVecExpr(e) -> e)
| ARRAY_SORT -> (match (Arrays.create_expr ctx obj) with Arrays.ArrayExpr(e) -> e)
| DATATYPE_SORT -> (match (Datatypes.create_expr ctx obj) with Datatypes.DatatypeExpr(e) -> e)
@ -1406,16 +1407,20 @@ sig
type bool_expr = BoolExpr of Expr.expr
type bool_sort = BoolSort of Sort.sort
val create : context -> Z3native.ptr -> bool_expr
val create_expr : context -> Z3native.ptr -> bool_expr
val create_sort : context -> Z3native.ptr -> bool_sort
val aton : bool_expr array -> Z3native.ptr array
end = struct
type bool_expr = BoolExpr of Expr.expr
type bool_sort = BoolSort of Sort.sort
let create ( ctx : context ) ( no : Z3native.ptr ) =
let create_expr ( ctx : context ) ( no : Z3native.ptr ) =
let a = (AST.create ctx no) in
BoolExpr(Expr.Expr(a))
let create_sort ( ctx : context ) ( no : Z3native.ptr ) =
BoolSort(Sort.create ctx no)
let gc ( x : bool_expr ) = match x with BoolExpr(e) -> (Expr.gc e)
let gnc ( x : bool_expr ) = match x with BoolExpr(e) -> (Expr.gnc e)
let gno ( x : bool_expr ) = match x with BoolExpr(e) -> (Expr.gno e)
@ -1444,13 +1449,13 @@ end = struct
The true Term.
*)
let mk_true ( ctx : context ) =
create ctx (Z3native.mk_true (context_gno ctx))
create_expr ctx (Z3native.mk_true (context_gno ctx))
(**
The false Term.
*)
let mk_false ( ctx : context ) =
create ctx (Z3native.mk_false (context_gno ctx))
create_expr ctx (Z3native.mk_false (context_gno ctx))
(**
Creates a Boolean value.
@ -1462,19 +1467,19 @@ end = struct
Creates the equality <paramref name="x"/> = <paramref name="y"/>.
*)
let mk_eq ( ctx : context ) ( x : Expr.expr ) ( y : Expr.expr ) =
create ctx (Z3native.mk_eq (context_gno ctx) (Expr.gno x) (Expr.gno y))
create_expr ctx (Z3native.mk_eq (context_gno ctx) (Expr.gno x) (Expr.gno y))
(**
Creates a <c>distinct</c> term.
*)
let mk_distinct ( ctx : context ) ( args : Expr.expr array ) =
create ctx (Z3native.mk_distinct (context_gno ctx) (Array.length args) (Expr.aton args))
create_expr ctx (Z3native.mk_distinct (context_gno ctx) (Array.length args) (Expr.aton args))
(**
Mk an expression representing <c>not(a)</c>.
*)
let mk_not ( ctx : context ) ( a : bool_expr ) =
create ctx (Z3native.mk_not (context_gno ctx) (gno a))
create_expr ctx (Z3native.mk_not (context_gno ctx) (gno a))
(**
Create an expression representing an if-then-else: <c>ite(t1, t2, t3)</c>.
@ -1483,36 +1488,36 @@ end = struct
@param t3 An expression with the same sort as <paramref name="t2"/>
*)
let mk_ite ( ctx : context ) ( t1 : bool_expr ) ( t2 : bool_expr ) ( t3 : bool_expr ) =
create ctx (Z3native.mk_ite (context_gno ctx) (gno t1) (gno t2) (gno t3))
create_expr ctx (Z3native.mk_ite (context_gno ctx) (gno t1) (gno t2) (gno t3))
(**
Create an expression representing <c>t1 iff t2</c>.
*)
let mk_iff ( ctx : context ) ( t1 : bool_expr ) ( t2 : bool_expr ) =
create ctx (Z3native.mk_iff (context_gno ctx) (gno t1) (gno t2))
create_expr ctx (Z3native.mk_iff (context_gno ctx) (gno t1) (gno t2))
(**
Create an expression representing <c>t1 -> t2</c>.
*)
let mk_implies ( ctx : context ) ( t1 : bool_expr ) ( t2 : bool_expr ) =
create ctx (Z3native.mk_implies (context_gno ctx) (gno t1) (gno t2))
create_expr ctx (Z3native.mk_implies (context_gno ctx) (gno t1) (gno t2))
(**
Create an expression representing <c>t1 xor t2</c>.
*)
let mk_xor ( ctx : context ) ( t1 : bool_expr ) ( t2 : bool_expr ) =
create ctx (Z3native.mk_xor (context_gno ctx) (gno t1) (gno t2))
create_expr ctx (Z3native.mk_xor (context_gno ctx) (gno t1) (gno t2))
(**
Create an expression representing the AND of args
*)
let mk_and ( ctx : context ) ( args : bool_expr array ) =
create ctx (Z3native.mk_and (context_gno ctx) (Array.length args) (aton args))
create_expr ctx (Z3native.mk_and (context_gno ctx) (Array.length args) (aton args))
(**
Create an expression representing the OR of args
*)
let mk_or ( ctx : context ) ( args : bool_expr array ) =
create ctx (Z3native.mk_or (context_gno ctx) (Array.length args) (aton args))
create_expr ctx (Z3native.mk_or (context_gno ctx) (Array.length args) (aton args))
end
(** Quantifier expressions *)
@ -1676,7 +1681,7 @@ end = struct
The body of the quantifier.
*)
let get_body ( x : quantifier ) =
Booleans.create (gc x) (Z3native.get_quantifier_body (gnc x) (gno x))
Booleans.create_expr (gc x) (Z3native.get_quantifier_body (gnc x) (gno x))
(**
Creates a new bound variable.
@ -2643,416 +2648,478 @@ end
and Arithmetic :
sig
type arith_sort = ArithSort of Sort.sort
type int_sort = IntSort of Sort.sort
type real_sort = RealSort of Sort.sort
type arith_expr = Expr of Expr.expr
type int_expr = IntExpr of arith_expr
type real_expr = RealExpr of arith_expr
type int_num = IntNum of int_expr
type rat_num = RatNum of real_expr
type algebraic_num = AlgebraicNum of arith_expr
val create_arith_expr : context -> Z3native.ptr -> arith_expr
val create_int_expr : context -> Z3native.ptr -> int_expr
val create_real_expr : context -> Z3native.ptr -> real_expr
val create_int_num : context -> Z3native.ptr -> int_num
val create_rat_num : context -> Z3native.ptr -> rat_num
val create_algebraic_num : context -> Z3native.ptr -> algebraic_num
val create_expr : context -> Z3native.ptr -> arith_expr
val aton : arith_expr array -> Z3native.ptr array
module Integers : sig
type int_sort = IntSort of arith_sort
type int_expr = IntExpr of arith_expr
type int_num = IntNum of int_expr
val create_sort : context -> Z3native.ptr -> int_sort
val create_expr : context -> Z3native.ptr -> int_expr
val create_num : context -> Z3native.ptr -> int_num
end
module Reals : sig
type real_sort = RealSort of arith_sort
type real_expr = RealExpr of arith_expr
type rat_num = RatNum of real_expr
val create_sort : context -> Z3native.ptr -> real_sort
val create_expr : context -> Z3native.ptr -> real_expr
val create_num : context -> Z3native.ptr -> rat_num
end
module AlgebraicNumbers : sig
type algebraic_num = AlgebraicNum of arith_expr
val create_num : context -> Z3native.ptr -> algebraic_num
end
end = struct
type arith_sort = ArithSort of Sort.sort
type int_sort = IntSort of Sort.sort
type real_sort = RealSort of Sort.sort
type arith_expr = ArithExpr of Expr.expr
type int_expr = IntExpr of arith_expr
type real_expr = RealExpr of arith_expr
type int_num = IntNum of int_expr
type rat_num = RatNum of real_expr
type algebraic_num = AlgebraicNum of arith_expr
let create_arith_expr ( ctx : context ) ( no : Z3native.ptr ) =
ArithExpr(Expr.create ctx no)
let create_int_expr ( ctx : context ) ( no : Z3native.ptr ) =
IntExpr(create_arith_expr ctx no)
let create_arith_sort ( ctx : context ) ( no : Z3native.ptr ) =
ArithSort(Sort.create ctx no)
let create_real_expr ( ctx : context ) ( no : Z3native.ptr ) =
RealExpr(create_arith_expr ctx no)
let sgc ( x : arith_sort ) = match (x) with ArithSort(Sort.Sort(s)) -> (z3obj_gc s)
let sgnc ( x : arith_sort ) = match (x) with ArithSort(Sort.Sort(s)) -> (z3obj_gnc s)
let sgno ( x : arith_sort ) = match (x) with ArithSort(Sort.Sort(s)) -> (z3obj_gno s)
let egc ( x : arith_expr ) = match (x) with ArithExpr(e) -> (Expr.gc e)
let egnc ( x : arith_expr ) = match (x) with ArithExpr(e) -> (Expr.gnc e)
let egno ( x : arith_expr ) = match (x) with ArithExpr(e) -> (Expr.gno e)
let create_int_num ( ctx : context ) ( no : Z3native.ptr ) =
IntNum(create_int_expr ctx no)
let create_rat_num ( ctx : context ) ( no : Z3native.ptr ) =
RatNum(create_real_expr ctx no)
(**
Create a new integer sort.
*)
let mk_int_sort ( ctx : context ) =
(new int_sort ctx)#create_obj (Z3native.mk_int_sort (context_gno ctx))
module rec Integers :
sig
type int_sort = IntSort of arith_sort
type int_expr = IntExpr of arith_expr
type int_num = IntNum of int_expr
(**
Create a real sort.
*)
let mk_real_sort ( ctx : context ) =
(new real_sort ctx)#create_obj (Z3native.mk_real_sort (context_gno ctx))
val create_sort : context -> Z3native.ptr -> int_sort
val create_expr : context -> Z3native.ptr -> int_expr
val create_num : context -> Z3native.ptr -> int_num
end = struct
type int_sort = IntSort of arith_sort
type int_expr = IntExpr of arith_expr
type int_num = IntNum of int_expr
let create_sort ( ctx : context ) ( no : Z3native.ptr ) =
IntSort(create_arith_sort ctx no)
let create_expr ( ctx : context ) ( no : Z3native.ptr ) =
IntExpr(create_arith_expr ctx no)
let create_num ( ctx : context ) ( no : Z3native.ptr ) =
IntNum(create_expr ctx no)
let sgc ( x : int_sort ) = match (x) with IntSort(s) -> (sgc s)
let sgnc ( x : int_sort ) = match (x) with IntSort(s) -> (sgnc s)
let sgno ( x : int_sort ) = match (x) with IntSort(s) -> (sgno s)
let egc ( x : int_expr ) = match (x) with IntExpr(e) -> (egc e)
let egnc ( x : int_expr ) = match (x) with IntExpr(e) -> (egnc e)
let egno ( x : int_expr ) = match (x) with IntExpr(e) -> (egno e)
let ngc ( x : int_num ) = match (x) with IntNum(e) -> (egc e)
let ngnc ( x : int_num ) = match (x) with IntNum(e) -> (egnc e)
let ngno ( x : int_num ) = match (x) with IntNum(e) -> (egno e)
(** Create a new integer sort. *)
let mk_sort ( ctx : context ) =
create_sort ctx (Z3native.mk_int_sort (context_gno ctx))
(** Retrieve the int value. *)
let get_int ( x : int_num ) =
let (r, v) = Z3native.get_numeral_int (ngnc x) (ngno x) in
if r then v
else raise (Z3native.Exception "Conversion failed.")
(** Returns a string representation of the numeral. *)
let to_string ( x : int_num ) = Z3native.get_numeral_string (ngnc x) (ngno x)
(**
Creates an integer constant.
*)
let mk_int_const ( ctx : context ) ( name : Symbol.symbol ) =
IntExpr(ArithExpr(Expr.mk_const ctx name (match (mk_sort ctx) with IntSort(ArithSort(s)) -> s)))
(**
Creates an integer constant.
*)
let mk_int_const_s ( ctx : context ) ( name : string ) =
mk_int_const ctx (Symbol.mk_string ctx name)
(**
Create an expression representing <c>t1 mod t2</c>.
<remarks>The arguments must have int type.
*)
let mk_mod ( ctx : context ) ( t1 : int_expr ) ( t2 : int_expr ) =
create_expr ctx (Z3native.mk_mod (context_gno ctx) (egno t1) (egno t2))
(**
Create an expression representing <c>t1 rem t2</c>.
<remarks>The arguments must have int type.
*)
let mk_rem ( ctx : context ) ( t1 : int_expr ) ( t2 : int_expr ) =
create_expr ctx (Z3native.mk_rem (context_gno ctx) (egno t1) (egno t2))
(**
Create an integer numeral.
@param v A string representing the Term value in decimal notation.
*)
let mk_int_numeral_s ( ctx : context ) ( v : string ) =
create_num ctx (Z3native.mk_numeral (context_gno ctx) v (sgno (mk_sort ctx)))
(**
Create an integer numeral.
@param v value of the numeral.
@return A Term with value <paramref name="v"/> and sort Integer
*)
let mk_int_numeral_i ( ctx : context ) ( v : int ) =
create_num ctx (Z3native.mk_int (context_gno ctx) v (sgno (mk_sort ctx)))
(**
Coerce an integer to a real.
<remarks>
There is also a converse operation exposed. It follows the semantics prescribed by the SMT-LIB standard.
You can take the floor of a real by creating an auxiliary integer Term <c>k</c> and
and asserting <c>MakeInt2Real(k) <= t1 < MkInt2Real(k)+1</c>.
The argument must be of integer sort.
*)
let mk_int2real ( ctx : context ) ( t : int_expr ) =
Reals.create_expr ctx (Z3native.mk_int2real (context_gno ctx) (egno t))
end
and Reals :
sig
type real_sort = RealSort of arith_sort
type real_expr = RealExpr of arith_expr
type rat_num = RatNum of real_expr
val create_sort : context -> Z3native.ptr -> real_sort
val create_expr : context -> Z3native.ptr -> real_expr
val create_num : context -> Z3native.ptr -> rat_num
end = struct
type real_sort = RealSort of arith_sort
type real_expr = RealExpr of arith_expr
type rat_num = RatNum of real_expr
let create_sort ( ctx : context ) ( no : Z3native.ptr ) =
RealSort(create_arith_sort ctx no)
let create_expr ( ctx : context ) ( no : Z3native.ptr ) =
RealExpr(create_arith_expr ctx no)
let create_num ( ctx : context ) ( no : Z3native.ptr ) =
RatNum(create_expr ctx no)
let sgc ( x : real_sort ) = match (x) with RealSort(s) -> (sgc s)
let sgnc ( x : real_sort ) = match (x) with RealSort(s) -> (sgnc s)
let sgno ( x : real_sort ) = match (x) with RealSort(s) -> (sgno s)
let egc ( x : real_expr ) = match (x) with RealExpr(e) -> (egc e)
let egnc ( x : real_expr ) = match (x) with RealExpr(e) -> (egnc e)
let egno ( x : real_expr ) = match (x) with RealExpr(e) -> (egno e)
let ngc ( x : rat_num ) = match (x) with RatNum(e) -> (egc e)
let ngnc ( x : rat_num ) = match (x) with RatNum(e) -> (egnc e)
let ngno ( x : rat_num ) = match (x) with RatNum(e) -> (egno e)
(** Create a real sort. *)
let mk_sort ( ctx : context ) =
create_sort ctx (Z3native.mk_real_sort (context_gno ctx))
(** The numerator of a rational numeral. *)
let get_numerator ( x : rat_num ) =
Integers.create_num (ngc x) (Z3native.get_numerator (ngnc x) (ngno x))
(** The denominator of a rational numeral. *)
let get_denominator ( x : rat_num ) =
Integers.create_num (ngc x) (Z3native.get_denominator (ngnc x) (ngno x))
(** Returns a string representation in decimal notation.
<remarks>The result has at most <paramref name="precision"/> decimal places.*)
let to_decimal_string ( x : rat_num ) ( precision : int ) =
Z3native.get_numeral_decimal_string (ngnc x) (ngno x) precision
(** Returns a string representation of the numeral. *)
let to_string ( x : rat_num ) = Z3native.get_numeral_string (ngnc x) (ngno x)
(** Creates a real constant. *)
let mk_real_const ( ctx : context ) ( name : Symbol.symbol ) =
RealExpr(ArithExpr(Expr.mk_const ctx name (match (mk_sort ctx) with RealSort(ArithSort(s)) -> s)))
(** Creates a real constant. *)
let mk_real_const_s ( ctx : context ) ( name : string ) =
mk_real_const ctx (Symbol.mk_string ctx name)
(**
Create a real from a fraction.
@param num numerator of rational.
@param den denominator of rational.
@return A Term with value <paramref name="num"/>/<paramref name="den"/> and sort Real
<seealso cref="MkNumeral(string, Sort)"/>
*)
let mk_numeral_nd ( ctx : context ) ( num : int ) ( den : int) =
if (den == 0) then
raise (Z3native.Exception "Denominator is zero")
else
create_num ctx (Z3native.mk_real (context_gno ctx) num den)
(**
Create a real numeral.
@param v A string representing the Term value in decimal notation.
@return A Term with value <paramref name="v"/> and sort Real
*)
let mk_numeral_s ( ctx : context ) ( v : string ) =
create_num ctx (Z3native.mk_numeral (context_gno ctx) v (sgno (mk_sort ctx)))
(**
Create a real numeral.
@param v value of the numeral.
@return A Term with value <paramref name="v"/> and sort Real
*)
let mk_numeral_i ( ctx : context ) ( v : int ) =
create_num ctx (Z3native.mk_int (context_gno ctx) v (sgno (mk_sort ctx)))
(** Creates an expression that checks whether a real number is an integer. *)
let mk_is_integer ( ctx : context ) ( t : real_expr ) =
Booleans.create_expr ctx (Z3native.mk_is_int (context_gno ctx) (egno t))
(**
Coerce a real to an integer.
<remarks>
The semantics of this function follows the SMT-LIB standard for the function to_int.
The argument must be of real sort.
*)
let mk_real2int ( ctx : context ) ( t : real_expr ) =
Integers.create_expr ctx (Z3native.mk_real2int (context_gno ctx) (egno t))
end
and AlgebraicNumbers :
sig
type algebraic_num = AlgebraicNum of arith_expr
val create_num : context -> Z3native.ptr -> algebraic_num
end = struct
type algebraic_num = AlgebraicNum of arith_expr
let create_num ( ctx : context ) ( no : Z3native.ptr ) =
AlgebraicNum(create_arith_expr ctx no)
let ngc ( x : algebraic_num ) = match (x) with AlgebraicNum(e) -> (egc e)
let ngnc ( x : algebraic_num ) = match (x) with AlgebraicNum(e) -> (egnc e)
let ngno ( x : algebraic_num ) = match (x) with AlgebraicNum(e) -> (egno e)
(**
Return a upper bound for a given real algebraic number.
The interval isolating the number is smaller than 1/10^<paramref name="precision"/>.
<seealso cref="Expr.IsAlgebraicNumber"/>
@param precision the precision of the result
@return A numeral Expr of sort Real
*)
let to_upper ( x : algebraic_num ) ( precision : int ) =
Reals.create_num (ngc x) (Z3native.get_algebraic_number_upper (ngnc x) (ngno x) precision)
(**
Return a lower bound for the given real algebraic number.
The interval isolating the number is smaller than 1/10^<paramref name="precision"/>.
<seealso cref="Expr.IsAlgebraicNumber"/>
@param precision the precision of the result
@return A numeral Expr of sort Real
*)
let to_lower ( x : algebraic_num ) precision =
Reals.create_num (ngc x) (Z3native.get_algebraic_number_lower (ngnc x) (ngno x) precision)
(** Returns a string representation in decimal notation.
<remarks>The result has at most <paramref name="precision"/> decimal places.*)
let to_decimal_string ( x : algebraic_num ) ( precision : int ) =
Z3native.get_numeral_decimal_string (ngnc x) (ngno x) precision
(** Returns a string representation of the numeral. *)
let to_string ( x : algebraic_num ) = Z3native.get_numeral_string (ngnc x) (ngno x)
end
let aton (a : arith_expr array) =
let f (e : arith_expr) = (egno e) in
Array.map f a
(**
Indicates whether the term is of integer sort.
*)
let is_int ( x : expr ) =
(Z3native.is_numeral_ast x#gnc x#gno) &&
((sort_kind_of_int (Z3native.get_sort_kind x#gnc (Z3native.get_sort x#gnc x#gno))) == INT_SORT)
let is_int ( x : Expr.expr ) =
(Z3native.is_numeral_ast (Expr.gnc x) (Expr.gno x)) &&
((sort_kind_of_int (Z3native.get_sort_kind (Expr.gnc x) (Z3native.get_sort (Expr.gnc x) (Expr.gno x)))) == INT_SORT)
(**
Indicates whether the term is an arithmetic numeral.
*)
let is_arithmetic_numeral ( x : expr ) = (FuncDecl.get_decl_kind (Expr.get_func_decl x) == OP_ANUM)
let is_arithmetic_numeral ( x : Expr.expr ) = (FuncDecl.get_decl_kind (Expr.get_func_decl x) == OP_ANUM)
(**
Indicates whether the term is a less-than-or-equal
*)
let is_le ( x : expr ) = (FuncDecl.get_decl_kind (Expr.get_func_decl x) == OP_LE)
let is_le ( x : Expr.expr ) = (FuncDecl.get_decl_kind (Expr.get_func_decl x) == OP_LE)
(**
Indicates whether the term is a greater-than-or-equal
*)
let is_ge ( x : expr ) = (FuncDecl.get_decl_kind (Expr.get_func_decl x) == OP_GE)
let is_ge ( x : Expr.expr ) = (FuncDecl.get_decl_kind (Expr.get_func_decl x) == OP_GE)
(**
Indicates whether the term is a less-than
*)
let is_lt ( x : expr ) = (FuncDecl.get_decl_kind (Expr.get_func_decl x) == OP_LT)
let is_lt ( x : Expr.expr ) = (FuncDecl.get_decl_kind (Expr.get_func_decl x) == OP_LT)
(**
Indicates whether the term is a greater-than
*)
let is_gt ( x : expr ) = (FuncDecl.get_decl_kind (Expr.get_func_decl x) == OP_GT)
let is_gt ( x : Expr.expr ) = (FuncDecl.get_decl_kind (Expr.get_func_decl x) == OP_GT)
(**
Indicates whether the term is addition (binary)
*)
let is_add ( x : expr ) = (FuncDecl.get_decl_kind (Expr.get_func_decl x) == OP_ADD)
let is_add ( x : Expr.expr ) = (FuncDecl.get_decl_kind (Expr.get_func_decl x) == OP_ADD)
(**
Indicates whether the term is subtraction (binary)
*)
let is_sub ( x : expr ) = (FuncDecl.get_decl_kind (Expr.get_func_decl x) == OP_SUB)
let is_sub ( x : Expr.expr ) = (FuncDecl.get_decl_kind (Expr.get_func_decl x) == OP_SUB)
(**
Indicates whether the term is a unary minus
*)
let is_uminus ( x : expr ) = (FuncDecl.get_decl_kind (Expr.get_func_decl x) == OP_UMINUS)
let is_uminus ( x : Expr.expr ) = (FuncDecl.get_decl_kind (Expr.get_func_decl x) == OP_UMINUS)
(**
Indicates whether the term is multiplication (binary)
*)
let is_mul ( x : expr ) = (FuncDecl.get_decl_kind (Expr.get_func_decl x) == OP_MUL)
let is_mul ( x : Expr.expr ) = (FuncDecl.get_decl_kind (Expr.get_func_decl x) == OP_MUL)
(**
Indicates whether the term is division (binary)
*)
let is_div ( x : expr ) = (FuncDecl.get_decl_kind (Expr.get_func_decl x) == OP_DIV)
let is_div ( x : Expr.expr ) = (FuncDecl.get_decl_kind (Expr.get_func_decl x) == OP_DIV)
(**
Indicates whether the term is integer division (binary)
*)
let is_idiv ( x : expr ) = (FuncDecl.get_decl_kind (Expr.get_func_decl x) == OP_IDIV)
let is_idiv ( x : Expr.expr ) = (FuncDecl.get_decl_kind (Expr.get_func_decl x) == OP_IDIV)
(**
Indicates whether the term is remainder (binary)
*)
let is_remainder ( x : expr ) = (FuncDecl.get_decl_kind (Expr.get_func_decl x) == OP_REM)
let is_remainder ( x : Expr.expr ) = (FuncDecl.get_decl_kind (Expr.get_func_decl x) == OP_REM)
(**
Indicates whether the term is modulus (binary)
*)
let is_modulus ( x : expr ) = (FuncDecl.get_decl_kind (Expr.get_func_decl x) == OP_MOD)
let is_modulus ( x : Expr.expr ) = (FuncDecl.get_decl_kind (Expr.get_func_decl x) == OP_MOD)
(**
Indicates whether the term is a coercion of integer to real (unary)
*)
let is_inttoreal ( x : expr ) = (FuncDecl.get_decl_kind (Expr.get_func_decl x) == OP_TO_REAL)
let is_inttoreal ( x : Expr.expr ) = (FuncDecl.get_decl_kind (Expr.get_func_decl x) == OP_TO_REAL)
(**
Indicates whether the term is a coercion of real to integer (unary)
*)
let is_real_to_int ( x : expr ) = (FuncDecl.get_decl_kind (Expr.get_func_decl x) == OP_TO_INT)
let is_real_to_int ( x : Expr.expr ) = (FuncDecl.get_decl_kind (Expr.get_func_decl x) == OP_TO_INT)
(**
Indicates whether the term is a check that tests whether a real is integral (unary)
*)
let is_real_is_int ( x : expr ) = (FuncDecl.get_decl_kind (Expr.get_func_decl x) == OP_IS_INT)
let is_real_is_int ( x : Expr.expr ) = (FuncDecl.get_decl_kind (Expr.get_func_decl x) == OP_IS_INT)
(**
Indicates whether the term is of sort real.
*)
let is_real ( x : expr ) =
((sort_kind_of_int (Z3native.get_sort_kind x#gnc (Z3native.get_sort x#gnc x#gno))) == REAL_SORT)
let is_real ( x : Expr.expr ) =
((sort_kind_of_int (Z3native.get_sort_kind (Expr.gnc x) (Z3native.get_sort (Expr.gnc x) (Expr.gno x)))) == REAL_SORT)
(**
Indicates whether the term is an integer numeral.
*)
let is_int_numeral ( x : expr ) = (Expr.is_numeral x) && (is_int x)
let is_int_numeral ( x : Expr.expr ) = (Expr.is_numeral x) && (is_int x)
(**
Indicates whether the term is a real numeral.
*)
let is_rat_num ( x : expr ) = (Expr.is_numeral x) && (is_real x)
let is_rat_num ( x : Expr.expr ) = (Expr.is_numeral x) && (is_real x)
(**
Indicates whether the term is an algebraic number
*)
let is_algebraic_number ( x : expr ) = Z3native.is_algebraic_number x#gnc x#gno
(** Retrieve the int value. *)
let get_int ( x : int_num ) =
let (r, v) = Z3native.get_numeral_int x#gnc x#gno in
if r then v
else raise (Z3native.Exception "Conversion failed.")
(** Returns a string representation of the numeral. *)
let to_string ( x : int_num ) = Z3native.get_numeral_string x#gnc x#gno
(** The numerator of a rational numeral. *)
let get_numerator ( x : rat_num ) =
(new int_num x#gc)#create_obj (Z3native.get_numerator x#gnc x#gno)
(** The denominator of a rational numeral. *)
let get_denominator ( x : rat_num ) =
(new int_num x#gc)#create_obj (Z3native.get_denominator x#gnc x#gno)
(** Returns a string representation in decimal notation.
<remarks>The result has at most <paramref name="precision"/> decimal places.*)
let to_decimal_string ( x : rat_num ) (precision : int) =
Z3native.get_numeral_decimal_string x#gnc x#gno precision
(** Returns a string representation of the numeral. *)
let to_string ( x : rat_num ) = Z3native.get_numeral_string x#gnc x#gno
(**
Creates an integer constant.
*)
let mk_int_const ( ctx : context ) ( name : Symbol.symbol ) =
((Expr.mk_const ctx name (mk_int_sort ctx)) :> int_expr)
(**
Creates an integer constant.
*)
let mk_int_const_s ( ctx : context ) ( name : string ) =
mk_int_const ctx (Symbol.mk_string ctx name)
(**
Creates a real constant.
*)
let mk_real_const ( ctx : context ) ( name : Symbol.symbol ) =
((Expr.mk_const ctx name (mk_real_sort ctx)) :> real_expr)
(**
Creates a real constant.
*)
let mk_real_const_s ( ctx : context ) ( name : string ) =
mk_real_const ctx (Symbol.mk_string ctx name)
let is_algebraic_number ( x : Expr.expr ) = Z3native.is_algebraic_number (Expr.gnc x) (Expr.gno x)
(**
Create an expression representing <c>t[0] + t[1] + ...</c>.
*)
let mk_add ( ctx : context ) ( t : arith_expr array ) =
(create_expr ctx (Z3native.mk_add (context_gno ctx) (Array.length t) (AST.aton t)) :> arith_expr)
Arithmetic.create_expr ctx (Z3native.mk_add (context_gno ctx) (Array.length t) (Arithmetic.aton t))
(**
Create an expression representing <c>t[0] * t[1] * ...</c>.
*)
let mk_mul ( ctx : context ) ( t : arith_expr array ) =
(create_expr ctx (Z3native.mk_mul (context_gno ctx) (Array.length t) (AST.aton t)) :> arith_expr)
Arithmetic.create_expr ctx (Z3native.mk_mul (context_gno ctx) (Array.length t) (Arithmetic.aton t))
(**
Create an expression representing <c>t[0] - t[1] - ...</c>.
*)
let mk_sub ( ctx : context ) ( t : arith_expr array ) =
(create_expr ctx (Z3native.mk_sub (context_gno ctx) (Array.length t) (AST.aton t)) :> arith_expr)
Arithmetic.create_expr ctx (Z3native.mk_sub (context_gno ctx) (Array.length t) (Arithmetic.aton t))
(**
Create an expression representing <c>-t</c>.
*)
let mk_unary_minus ( ctx : context ) ( t : arith_expr ) =
ArithExpr(create ctx (Z3native.mk_unary_minus (context_gno ctx)
(gno (match t with ArithExpr(b) -> b))))
Arithmetic.create_expr ctx (Z3native.mk_unary_minus (context_gno ctx) (egno t))
(**
Create an expression representing <c>t1 / t2</c>.
*)
let mk_div ( ctx : context ) ( t1 : arith_expr ) ( t2 : arith_expr ) =
ArithExpr(create ctx (Z3native.mk_div (context_gno ctx)
(gno (match t1 with BoolExpr(b) -> b))
(gno (match t2 with BoolExpr(b) -> b))))
(**
Create an expression representing <c>t1 mod t2</c>.
<remarks>The arguments must have int type.
*)
let mk_mod ( ctx : context ) ( t1 : int_expr ) ( t2 : int_expr ) =
IntExpr(create ctx (Z3native.mk_mod (context_gno ctx)
(gno (match t1 with BoolExpr(b) -> b))
(gno (match t2 with BoolExpr(b) -> b))))
(**
Create an expression representing <c>t1 rem t2</c>.
<remarks>The arguments must have int type.
*)
let mk_rem ( ctx : context ) ( t1 : int_expr ) ( t2 : int_expr ) =
IntExpr(create ctx (Z3native.mk_rem (context_gno ctx)
(gno (match t1 with BoolExpr(b) -> b))
(gno (match t2 with BoolExpr(b) -> b))))
Arithmetic.create_expr ctx (Z3native.mk_div (context_gno ctx) (egno t1) (egno t2))
(**
Create an expression representing <c>t1 ^ t2</c>.
*)
let mk_power ( ctx : context ) ( t1 : int_expr ) ( t2 : int_expr ) =
ArithExpr(create_expr ctx (Z3native.mk_power (context_gno ctx)
(gno (match t1 with BoolExpr(b) -> b))
(gno (match t2 with BoolExpr(b) -> b))))
let mk_power ( ctx : context ) ( t1 : arith_expr ) ( t2 : arith_expr ) =
Arithmetic.create_expr ctx (Z3native.mk_power (context_gno ctx) (egno t1) (egno t2))
(**
Create an expression representing <c>t1 < t2</c>
*)
let mk_lt ( ctx : context ) ( t1 : int_expr ) ( t2 : int_expr ) =
BoolExpr(create ctx (Z3native.mk_lt (context_gno ctx)
(gno (match t1 with BoolExpr(b) -> b))
(gno (match t2 with BoolExpr(b) -> b))))
let mk_lt ( ctx : context ) ( t1 : arith_expr ) ( t2 : arith_expr ) =
Booleans.create_expr ctx (Z3native.mk_lt (context_gno ctx) (egno t1) (egno t2))
(**
Create an expression representing <c>t1 <= t2</c>
*)
let mk_le ( ctx : context ) ( t1 : int_expr ) ( t2 : int_expr ) =
BoolExpr(create ctx (Z3native.mk_le (context_gno ctx)
(gno (match t1 with BoolExpr(b) -> b))
(gno (match t2 with BoolExpr(b) -> b))))
let mk_le ( ctx : context ) ( t1 : arith_expr ) ( t2 : arith_expr ) =
Booleans.create_expr ctx (Z3native.mk_le (context_gno ctx) (egno t1) (egno t2))
(**
Create an expression representing <c>t1 > t2</c>
*)
let mk_gt ( ctx : context ) ( t1 : int_expr ) ( t2 : int_expr ) =
BoolExpr(create ctx (Z3native.mk_gt (context_gno ctx)
(gno (match t1 with BoolExpr(b) -> b))
(gno (match t2 with BoolExpr(b) -> b))))
let mk_gt ( ctx : context ) ( t1 : arith_expr ) ( t2 : arith_expr ) =
Booleans.create_expr ctx (Z3native.mk_gt (context_gno ctx) (egno t1) (egno t2))
(**
Create an expression representing <c>t1 >= t2</c>
*)
let mk_ge ( ctx : context ) ( t1 : int_expr ) ( t2 : int_expr ) =
BoolExpr(create ctx (Z3native.mk_ge (context_gno ctx)
(gno (match t1 with BoolExpr(b) -> b))
(gno (match t2 with BoolExpr(b) -> b))))
(**
Coerce an integer to a real.
<remarks>
There is also a converse operation exposed. It follows the semantics prescribed by the SMT-LIB standard.
You can take the floor of a real by creating an auxiliary integer Term <c>k</c> and
and asserting <c>MakeInt2Real(k) <= t1 < MkInt2Real(k)+1</c>.
The argument must be of integer sort.
*)
let mk_int2real ( ctx : context ) ( t : int_expr ) =
RealExpr(create (Z3native.mk_int2real (context_gno ctx)
(gno (match t with BoolExpr(b) -> b))))
(**
Coerce a real to an integer.
<remarks>
The semantics of this function follows the SMT-LIB standard for the function to_int.
The argument must be of real sort.
*)
let mk_real2int ( ctx : context ) ( t : real_expr ) =
(new int_expr ctx)#create_obj (Z3native.mk_real2int (context_gno ctx) t#gno)
(**
Creates an expression that checks whether a real number is an integer.
*)
let mk_is_integer ( ctx : context ) ( t : real_expr ) =
BoolExpr(create ctx (Z3native.mk_is_int (context_gno ctx)
(gno (match t with BoolExpr(b) -> b))))
(**
Return a upper bound for a given real algebraic number.
The interval isolating the number is smaller than 1/10^<paramref name="precision"/>.
<seealso cref="Expr.IsAlgebraicNumber"/>
@param precision the precision of the result
@return A numeral Expr of sort Real
*)
let to_upper ( x : algebraic_num ) ( precision : int ) =
(new rat_num x#gc)#create_obj (Z3native.get_algebraic_number_upper x#gnc x#gno precision)
(**
Return a lower bound for the given real algebraic number.
The interval isolating the number is smaller than 1/10^<paramref name="precision"/>.
<seealso cref="Expr.IsAlgebraicNumber"/>
@param precision the precision of the result
@return A numeral Expr of sort Real
*)
let to_lower ( x : algebraic_num ) precision =
(new rat_num x#gc)#create_obj (Z3native.get_algebraic_number_lower x#gnc x#gno precision)
(** Returns a string representation in decimal notation.
<remarks>The result has at most <paramref name="precision"/> decimal places.*)
let to_decimal_string ( x : algebraic_num ) ( precision : int ) =
Z3native.get_numeral_decimal_string x#gnc x#gno precision
(**
Create a real from a fraction.
@param num numerator of rational.
@param den denominator of rational.
@return A Term with value <paramref name="num"/>/<paramref name="den"/> and sort Real
<seealso cref="MkNumeral(string, Sort)"/>
*)
let mk_real_numeral_nd ( ctx : context ) ( num : int ) ( den : int) =
if (den == 0) then
raise (Z3native.Exception "Denominator is zero")
else
(new rat_num ctx)#create_obj (Z3native.mk_real (context_gno ctx) num den)
(**
Create a real numeral.
@param v A string representing the Term value in decimal notation.
@return A Term with value <paramref name="v"/> and sort Real
*)
let mk_real_numeral_s ( ctx : context ) ( v : string ) =
(new rat_num ctx)#create_obj (Z3native.mk_numeral (context_gno ctx) v (mk_real_sort ctx)#gno)
(**
Create a real numeral.
@param v value of the numeral.
@return A Term with value <paramref name="v"/> and sort Real
*)
let mk_real_numeral_i ( ctx : context ) ( v : int ) =
(new rat_num ctx)#create_obj (Z3native.mk_int (context_gno ctx) v (mk_real_sort ctx)#gno)
(**
Create an integer numeral.
@param v A string representing the Term value in decimal notation.
*)
let mk_int_numeral_s ( ctx : context ) ( v : string ) =
(new int_num ctx)#create_obj (Z3native.mk_numeral (context_gno ctx) v (mk_int_sort ctx)#gno)
(**
Create an integer numeral.
@param v value of the numeral.
@return A Term with value <paramref name="v"/> and sort Integer
*)
let mk_int_numeral_i ( ctx : context ) ( v : int ) =
(new int_num ctx)#create_obj (Z3native.mk_int (context_gno ctx) v (mk_int_sort ctx)#gno)
(** Returns a string representation of the numeral. *)
let to_string ( x : algebraic_num ) = Z3native.get_numeral_string x#gnc x#gno
let mk_ge ( ctx : context ) ( t1 : arith_expr ) ( t2 : arith_expr ) =
Booleans.create_expr ctx (Z3native.mk_ge (context_gno ctx) (egno t1) (egno t2))
end