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106 lines
3.6 KiB
106 lines
3.6 KiB
//==============================================================================
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//
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// Copyright (c) 2014-
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// Authors:
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// * Joachim Klein <klein@tcs.inf.tu-dresden.de> (TU Dresden)
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//
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//------------------------------------------------------------------------------
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//
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// This file is part of PRISM.
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//
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// PRISM is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// PRISM is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with PRISM; if not, write to the Free Software Foundation,
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// Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//
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//==============================================================================
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package acceptance;
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import java.io.PrintStream;
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import java.util.BitSet;
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import prism.PrismException;
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import jdd.JDDVars;
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/**
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* Generic interface for an omega-regular acceptance condition (BitSet-based).
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*/
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public interface AcceptanceOmega extends Cloneable
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{
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/** Returns true if the bottom strongly connected component (BSSC)
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* given by bscc_states is accepting for this acceptance condition.
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**/
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public boolean isBSCCAccepting(BitSet bscc_states);
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/** Get the acceptance signature for state {@code stateIndex}.
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**/
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public String getSignatureForState(int stateIndex);
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/** Get the acceptance signature for state {@code stateIndex} (HOA format).
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*/
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public String getSignatureForStateHOA(int stateIndex);
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/**
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* Get a string describing the acceptance condition's size,
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* i.e. "x Rabin pairs", etc.
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*/
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public String getSizeStatistics();
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/** Returns the AcceptanceType of this acceptance condition */
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public AcceptanceType getType();
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/** Returns the type of this acceptance condition as a String,
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* i.e., "R" for Rabin
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*/
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public String getTypeAbbreviated();
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/** Returns a full name for this acceptance condition */
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public String getTypeName();
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/** Print the appropriate Acceptance (and potentially acc-name) header */
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public void outputHOAHeader(PrintStream out);
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/** Make a copy of the acceptance condition. */
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public AcceptanceOmega clone();
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/**
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* Complement the acceptance condition if possible.
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* @param numStates the number of states in the underlying model / automaton (needed for complementing BitSets)
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* @param allowedAcceptance the allowed acceptance types that may be used for complementing
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*/
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public AcceptanceOmega complement(int numStates, AcceptanceType... allowedAcceptance) throws PrismException;
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/** Abstract functor for use with the lift function. */
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public static abstract class LiftBitSet {
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public abstract BitSet lift(BitSet states);
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};
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/**
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* Lift the state sets in the acceptance condition.
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* For each state set {@code states} in the condition,
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* {@code lifter.lift(states)} is called and the state set is
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* replaced by the result.
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**/
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public void lift(LiftBitSet lifter);
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/**
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* Convert this BitSet based acceptance condition to the corresponding BDD based acceptance condition.
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* @param ddRowVars JDDVars of the row variables corresponding to the bits in the bitset
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*/
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public AcceptanceOmegaDD toAcceptanceDD(JDDVars ddRowVars);
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/**
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* Convert this acceptance condition to an AcceptanceGeneric condition.
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*/
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public AcceptanceGeneric toAcceptanceGeneric();
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}
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