org.sosy_lab.java_smt.basicimpl

Class AbstractModel<TFormulaInfo,TType,TEnv>

java.lang.Object

org.sosy_lab.java_smt.basicimpl.AbstractModel<TFormulaInfo,TType,TEnv>

All Implemented Interfaces:

AutoCloseable, Iterable<Model.ValueAssignment>, Model

Direct Known Subclasses:

AbstractModel.CachingAbstractModel

public abstract class AbstractModel<TFormulaInfo,TType,TEnv>
extends Object
implements Model

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	AbstractModel.CachingAbstractModel<TFormulaInfo,TType,TEnv>

Nested classes/interfaces inherited from interface org.sosy_lab.java_smt.api.Model

Model.ValueAssignment

Field Summary

Fields

Modifier and Type	Field and Description
protected FormulaCreator<TFormulaInfo,TType,TEnv,?>	creator

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AbstractModel(FormulaCreator<TFormulaInfo,TType,TEnv,?> creator)

Method Summary

Modifier and Type	Method and Description
<T extends Formula> T	eval(T f) Evaluate a given formula substituting the values from the model and return it as formula.
protected abstract TFormulaInfo	evalImpl(TFormulaInfo formula) Simplify the given formula and replace all symbols with their model values.
@Nullable BigInteger	evaluate(BitvectorFormula f) Type-safe evaluation for bitvector formulas.
@Nullable Boolean	evaluate(BooleanFormula f) Type-safe evaluation for boolean formulas.
@Nullable Object	evaluate(Formula f) Evaluate a given formula substituting the values from the model.
@Nullable BigInteger	evaluate(NumeralFormula.IntegerFormula f) Type-safe evaluation for integer formulas.
@Nullable Rational	evaluate(NumeralFormula.RationalFormula f) Type-safe evaluation for rational formulas.
protected @Nullable Object	evaluateImpl(TFormulaInfo f) Simplify the given formula and replace all symbols with their model values.
String	toString() Pretty-printing of the model values.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.sosy_lab.java_smt.api.Model

close, iterator

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Field Detail

creator

protected final FormulaCreator<TFormulaInfo,TType,TEnv,?> creator

Constructor Detail

AbstractModel

protected AbstractModel(FormulaCreator<TFormulaInfo,TType,TEnv,?> creator)

Method Detail

eval

public <T extends Formula> T eval(T f)

Description copied from interface: Model

Evaluate a given formula substituting the values from the model and return it as formula.

If a value is not relevant to the satisfiability result, the solver can choose either to insert an arbitrary value (e.g., the value 0 for the matching type) or just return null.

The formula does not need to be a variable, we also allow complex expression. The solver will replace all symbols from the formula with their model values and then simplify the formula into a simple formula, e.g., consisting only of a numeral expression.

Specified by:

eval in interface Model

Parameters:

f - Input formula to be evaluated.

Returns:

evaluation of the given formula or null if the solver does not provide a better evaluation.

evaluate

public @Nullable BigInteger evaluate(NumeralFormula.IntegerFormula f)

Description copied from interface: Model

Type-safe evaluation for integer formulas.

The formula does not need to be a variable, we also allow complex expression.

Specified by:

evaluate in interface Model

evaluate

public @Nullable Rational evaluate(NumeralFormula.RationalFormula f)

Description copied from interface: Model

Type-safe evaluation for rational formulas.

The formula does not need to be a variable, we also allow complex expression.

Specified by:

evaluate in interface Model

evaluate

public @Nullable Boolean evaluate(BooleanFormula f)

Description copied from interface: Model

Type-safe evaluation for boolean formulas.

The formula does not need to be a variable, we also allow complex expression.

Specified by:

evaluate in interface Model

evaluate

public @Nullable BigInteger evaluate(BitvectorFormula f)

Description copied from interface: Model

Type-safe evaluation for bitvector formulas.

The formula does not need to be a variable, we also allow complex expression.

Specified by:

evaluate in interface Model

evaluate

public final @Nullable Object evaluate(Formula f)

Description copied from interface: Model

Evaluate a given formula substituting the values from the model.

If a value is not relevant to the satisfiability result, the model can choose either an arbitrary value (e.g., the value 0 for the matching type) or just return null.

The formula does not need to be a variable, we also allow complex expression.

Specified by:

evaluate in interface Model

Parameters:

f - Input formula

Returns:

Either of: - Number (Rational/Double/BigInteger/Long/Integer) - Boolean

evalImpl

protected abstract TFormulaInfo evalImpl(TFormulaInfo formula)

Simplify the given formula and replace all symbols with their model values. If a symbol is not set in the model and evaluation aborts, return null.

evaluateImpl

protected @Nullable Object evaluateImpl(TFormulaInfo f)

Simplify the given formula and replace all symbols with their model values. If a symbol is not set in the model and evaluation aborts, return null. Afterwards convert the formula into a Java object as far as possible, i.e., try to match a primitive or simple type.

toString

public String toString()

Description copied from interface: Model

Pretty-printing of the model values.

Specified by:

toString in interface Model

Overrides:

toString in class Object