C# Class Microsoft.Z3.Fixedpoint

Inheritance: Z3Object

Datei anzeigen Open project: sslab-gatech/juxta Class Usage Examples

Public Methods

Method	Description
Add ( ) : void	Alias for Assert.
AddCover ( int level, FuncDecl predicate, Expr property ) : void	Add `property` about the `predicate`. The property is added at `level`.
AddFact ( FuncDecl pred ) : void	Add table fact to the fixedpoint solver.
AddRule ( BoolExpr rule, Symbol name = null ) : void	Add rule into the fixedpoint solver.
Assert ( ) : void	Assert a constraint (or multiple) into the fixedpoint solver.
GetAnswer ( ) : Expr	Retrieve satisfying instance or instances of solver, or definitions for the recursive predicates that show unsatisfiability.
GetCoverDelta ( int level, FuncDecl predicate ) : Expr	Retrieve the cover of a predicate.
GetNumLevels ( FuncDecl predicate ) : uint	Retrieve the number of levels explored for a given predicate.
GetReasonUnknown ( ) : string	Retrieve explanation why fixedpoint engine returned status Unknown.
ParseFile ( string file ) : Microsoft.Z3.BoolExpr[]	Parse an SMT-LIB2 file with fixedpoint rules. Add the rules to the current fixedpoint context. Return the set of queries in the file.
ParseString ( string s ) : Microsoft.Z3.BoolExpr[]	Similar to ParseFile. Instead it takes as argument a string.
Pop ( ) : void	Backtrack one backtracking point. Note that an exception is thrown if Pop is called without a corresponding `Push`
Push ( ) : void	Creates a backtracking point.
Query ( BoolExpr query ) : Status	Query the fixedpoint solver. A query is a conjunction of constraints. The constraints may include the recursively defined relations. The query is satisfiable if there is an instance of the query variables and a derivation for it. The query is unsatisfiable if there are no derivations satisfying the query variables.
Query ( FuncDecl relations ) : Status	Query the fixedpoint solver. A query is an array of relations. The query is satisfiable if there is an instance of some relation that is non-empty. The query is unsatisfiable if there are no derivations satisfying any of the relations.
RegisterRelation ( FuncDecl f ) : void	Register predicate as recursive relation.
SetPredicateRepresentation ( FuncDecl f, Symbol kinds ) : void	Instrument the Datalog engine on which table representation to use for recursive predicate.
ToString ( ) : string	Retrieve internal string representation of fixedpoint object.
ToString ( BoolExpr queries ) : string	Convert benchmark given as set of axioms, rules and queries to a string.
UpdateRule ( BoolExpr rule, Symbol name ) : void	Update named rule into in the fixedpoint solver.

Private Methods

Method	Description
DecRef ( IntPtr o ) : void
Fixedpoint ( Context ctx ) : System
Fixedpoint ( Context ctx, IntPtr obj ) : System
IncRef ( IntPtr o ) : void
ToBoolExprs ( ASTVector v ) : Microsoft.Z3.BoolExpr[]

Method Details

Add() public method

Alias for Assert.

public Add ( ) : void
return	void

AddCover() public method

Add property about the predicate. The property is added at level.

public AddCover ( int level, FuncDecl predicate, Expr property ) : void
level	int
predicate	FuncDecl
property	Expr
return	void

AddFact() public method

Add table fact to the fixedpoint solver.

public AddFact ( FuncDecl pred ) : void
pred	FuncDecl
return	void

AddRule() public method

Add rule into the fixedpoint solver.

public AddRule ( BoolExpr rule, Symbol name = null ) : void
rule	BoolExpr
name	Symbol
return	void

Assert() public method

Assert a constraint (or multiple) into the fixedpoint solver.

public Assert ( ) : void
return	void

GetAnswer() public method

Retrieve satisfying instance or instances of solver, or definitions for the recursive predicates that show unsatisfiability.

public GetAnswer ( ) : Expr
return	Expr

GetCoverDelta() public method

Retrieve the cover of a predicate.

public GetCoverDelta ( int level, FuncDecl predicate ) : Expr
level	int
predicate	FuncDecl
return	Expr

GetNumLevels() public method

Retrieve the number of levels explored for a given predicate.

public GetNumLevels ( FuncDecl predicate ) : uint
predicate	FuncDecl
return	uint

GetReasonUnknown() public method

Retrieve explanation why fixedpoint engine returned status Unknown.

public GetReasonUnknown ( ) : string
return	string

ParseFile() public method

Parse an SMT-LIB2 file with fixedpoint rules. Add the rules to the current fixedpoint context. Return the set of queries in the file.

public ParseFile ( string file ) : Microsoft.Z3.BoolExpr[]
file	string
return	Microsoft.Z3.BoolExpr[]

ParseString() public method

Similar to ParseFile. Instead it takes as argument a string.

public ParseString ( string s ) : Microsoft.Z3.BoolExpr[]
s	string
return	Microsoft.Z3.BoolExpr[]

Pop() public method

Backtrack one backtracking point.

Note that an exception is thrown if Pop is called without a corresponding Push

public Pop ( ) : void
return	void

Push() public method

Creates a backtracking point.

public Push ( ) : void
return	void

Query() public method

Query the fixedpoint solver. A query is a conjunction of constraints. The constraints may include the recursively defined relations. The query is satisfiable if there is an instance of the query variables and a derivation for it. The query is unsatisfiable if there are no derivations satisfying the query variables.

public Query ( BoolExpr query ) : Status
query	BoolExpr
return	Status

Query() public method

Query the fixedpoint solver. A query is an array of relations. The query is satisfiable if there is an instance of some relation that is non-empty. The query is unsatisfiable if there are no derivations satisfying any of the relations.

public Query ( FuncDecl relations ) : Status
relations	FuncDecl
return	Status

RegisterRelation() public method

public RegisterRelation ( FuncDecl f ) : void
f	FuncDecl
return	void

SetPredicateRepresentation() public method

Instrument the Datalog engine on which table representation to use for recursive predicate.

public SetPredicateRepresentation ( FuncDecl f, Symbol kinds ) : void
f	FuncDecl
kinds	Symbol
return	void

ToString() public method

Retrieve internal string representation of fixedpoint object.

public ToString ( ) : string
return	string

ToString() public method

Convert benchmark given as set of axioms, rules and queries to a string.

public ToString ( BoolExpr queries ) : string
queries	BoolExpr
return	string

UpdateRule() public method

Update named rule into in the fixedpoint solver.

public UpdateRule ( BoolExpr rule, Symbol name ) : void
rule	BoolExpr
name	Symbol
return	void