128 lines
3.3 KiB
128 lines
3.3 KiB
/*
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* NoBoundOperator.h
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*
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* Created on: 27.12.2012
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* Author: Christian Dehnert
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*/
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#ifndef STORM_FORMULA_NOBOUNDOPERATOR_H_
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#define STORM_FORMULA_NOBOUNDOPERATOR_H_
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#include "AbstractFormula.h"
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#include "AbstractPathFormula.h"
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namespace storm {
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namespace formula {
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template <class T> class NoBoundOperator;
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template <class T>
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class INoBoundOperatorModelChecker {
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public:
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virtual std::vector<T>* checkNoBoundOperator(const NoBoundOperator<T>& obj) const = 0;
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};
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/*!
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* @brief
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* Class for a Abstract formula tree with a P (probablistic) operator without declaration of probabilities
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* as root.
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*
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* Checking a formula with this operator as root returns the probabilities that the path formula holds
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* (for each state)
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*
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* Has one Abstract path formula as sub formula/tree.
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*
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* @note
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* This class is a hybrid of a state and path formula, and may only appear as the outermost operator.
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* Hence, it is seen as neither a state nor a path formula, but is directly derived from AbstractFormula.
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*
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* @note
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* This class does not contain a check() method like the other formula classes.
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* The check method should only be called by the model checker to infer the correct check function for sub
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* formulas. As this operator can only appear at the root, the method is not useful here.
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* Use the checkProbabilisticNoBoundOperator method from the DtmcPrctlModelChecker class instead.
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*
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* The subtree is seen as part of the object and deleted with it
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* (this behavior can be prevented by setting them to NULL before deletion)
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*
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*
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* @see AbstractStateFormula
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* @see AbstractPathFormula
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* @see ProbabilisticOperator
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* @see ProbabilisticIntervalOperator
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* @see AbstractFormula
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*/
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template <class T>
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class NoBoundOperator: public storm::formula::AbstractFormula<T> {
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public:
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/*!
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* Empty constructor
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*/
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NoBoundOperator() {
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this->pathFormula = NULL;
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}
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/*!
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* Constructor
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*
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* @param pathFormula The child node.
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*/
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NoBoundOperator(AbstractPathFormula<T>* pathFormula) {
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this->pathFormula = pathFormula;
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}
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/*!
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* Destructor
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*/
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virtual ~NoBoundOperator() {
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if (pathFormula != NULL) {
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delete pathFormula;
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}
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}
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/*!
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* @returns the child node (representation of a Abstract path formula)
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*/
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const AbstractPathFormula<T>& getPathFormula () const {
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return *pathFormula;
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}
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/*!
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* Sets the child node
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*
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* @param pathFormula the path formula that becomes the new child node
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*/
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void setPathFormula(AbstractPathFormula<T>* pathFormula) {
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this->pathFormula = pathFormula;
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}
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/*!
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* Calls the model checker to check this formula.
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* Needed to infer the correct type of formula class.
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*
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* @note This function should only be called in a generic check function of a model checker class. For other uses,
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* the methods of the model checker should be used.
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*
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* @note This function is not implemented in this class.
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*
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* @returns A vector indicating all states that satisfy the formula represented by the called object.
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*/
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virtual std::vector<T>* check(const INoBoundOperatorModelChecker<T>& modelChecker) const {
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return modelChecker.checkNoBoundOperator(*this);
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}
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/*!
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* @returns a string representation of the formula
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*/
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virtual std::string toString() const = 0;
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private:
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AbstractPathFormula<T>* pathFormula;
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};
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} /* namespace formula */
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} /* namespace storm */
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#endif /* STORM_FORMULA_NOBOUNDOPERATOR_H_ */
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