@ -10,6 +10,7 @@
# include "storm/storage/prism/Program.h"
# include "storm/storage/expressions/Expression.h"
# include "storm/storage/sparse/PrismChoiceOrigins.h"
# include "storm/storage/BoostTypes.h"
# include "storm/modelchecker/propositional/SparsePropositionalModelChecker.h"
# include "storm/modelchecker/prctl/helper/SparseDtmcPrctlHelper.h"
# include "storm/modelchecker/prctl/helper/SparseMdpPrctlHelper.h"
@ -56,18 +57,18 @@ namespace storm {
storm : : storage : : BitVector relevantStates ;
/ / The set of relevant labels .
boo st: : container : : flat_s et< uint_fast64_t > relevantLabels ;
storm : : storage : : FlatS et< uint_fast64_t > relevantLabels ;
/ / The set of relevant label sets .
boo st: : container : : flat_s et< boo st: : container : : flat_s et< uint_fast64_t > > relevantLabelSets ;
storm : : storage : : FlatS et< storm : : storage : : FlatS et< uint_fast64_t > > relevantLabelSets ;
/ / The set of labels that matter in terms of minimality .
boo st: : container : : flat_s et< uint_fast64_t > minimalityLabels ;
storm : : storage : : FlatS et< uint_fast64_t > minimalityLabels ;
/ / A set of labels that is definitely known to be taken in the final solution .
boo st: : container : : flat_s et< uint_fast64_t > knownLabels ;
storm : : storage : : FlatS et< uint_fast64_t > knownLabels ;
boo st: : container : : flat_s et< uint64_t > dontCareLabels ;
storm : : storage : : FlatS et< uint64_t > dontCareLabels ;
/ / A list of relevant choices for each relevant state .
std : : map < uint_fast64_t , std : : list < uint_fast64_t > > relevantChoicesForRelevantStates ;
@ -124,7 +125,7 @@ namespace storm {
* @ param dontCareLabels A set of labels that are " don't care " labels wrt . minimality .
* @ return A structure containing the relevant labels as well as states .
*/
static RelevancyInformation determineRelevantStatesAndLabels ( storm : : models : : sparse : : Model < T > const & model , std : : vector < boo st: : container : : flat_s et< uint_fast64_t > > const & labelSets , storm : : storage : : BitVector const & phiStates , storm : : storage : : BitVector const & psiStates , boo st: : container : : flat_s et< uint_fast64_t > const & dontCareLabels ) {
static RelevancyInformation determineRelevantStatesAndLabels ( storm : : models : : sparse : : Model < T > const & model , std : : vector < storm : : storage : : FlatS et< uint_fast64_t > > const & labelSets , storm : : storage : : BitVector const & phiStates , storm : : storage : : BitVector const & psiStates , storm : : storage : : FlatS et< uint_fast64_t > const & dontCareLabels ) {
/ / Create result .
RelevancyInformation relevancyInformation ;
@ -166,7 +167,7 @@ namespace storm {
/ / Compute the set of labels that are known to be taken in any case .
relevancyInformation . knownLabels = storm : : utility : : counterexamples : : getGuaranteedLabelSet ( model , labelSets , psiStates , relevancyInformation . relevantLabels ) ;
if ( ! relevancyInformation . knownLabels . empty ( ) ) {
boo st: : container : : flat_s et< uint_fast64_t > remainingLabels ;
storm : : storage : : FlatS et< uint_fast64_t > remainingLabels ;
std : : set_difference ( relevancyInformation . relevantLabels . begin ( ) , relevancyInformation . relevantLabels . end ( ) , relevancyInformation . knownLabels . begin ( ) , relevancyInformation . knownLabels . end ( ) , std : : inserter ( remainingLabels , remainingLabels . end ( ) ) ) ;
relevancyInformation . relevantLabels = remainingLabels ;
}
@ -281,7 +282,7 @@ namespace storm {
return variableInformation ;
}
static storm : : expressions : : Expression getOtherSynchronizationEnabledFormula ( boo st: : container : : flat_s et< uint_fast64_t > const & labelSet , std : : map < uint_fast64_t , std : : set < boo st: : container : : flat_s et< uint_fast64_t > > > const & synchronizingLabels , boost : : container : : flat_map < boo st: : container : : flat_s et< uint_fast64_t > , storm : : expressions : : Expression > const & labelSetToFormula , VariableInformation const & variableInformation , RelevancyInformation const & relevancyInformation ) {
static storm : : expressions : : Expression getOtherSynchronizationEnabledFormula ( storm : : storage : : FlatS et< uint_fast64_t > const & labelSet , std : : map < uint_fast64_t , std : : set < storm : : storage : : FlatS et< uint_fast64_t > > > const & synchronizingLabels , boost : : container : : flat_map < storm : : storage : : FlatS et< uint_fast64_t > , storm : : expressions : : Expression > const & labelSetToFormula , VariableInformation const & variableInformation , RelevancyInformation const & relevancyInformation ) {
/ / Taking all commands of a combination does not necessarily mean that a following label set needs to be taken .
/ / This is because it could be that the commands are taken to enable other synchronizations . Therefore , we need
/ / to add an additional clause that says that the right - hand side of the implication is also true if all commands
@ -290,7 +291,7 @@ namespace storm {
storm : : expressions : : Expression result = variableInformation . manager - > boolean ( true ) ;
for ( auto label : labelSet ) {
storm : : expressions : : Expression alternativeExpressionForLabel = variableInformation . manager - > boolean ( false ) ;
std : : set < boo st: : container : : flat_s et< uint_fast64_t > > const & synchsForCommand = synchronizingLabels . at ( label ) ;
std : : set < storm : : storage : : FlatS et< uint_fast64_t > > const & synchsForCommand = synchronizingLabels . at ( label ) ;
for ( auto const & synchSet : synchsForCommand ) {
storm : : expressions : : Expression alternativeExpression = variableInformation . manager - > boolean ( true ) ;
@ -327,7 +328,7 @@ namespace storm {
* @ param context The Z3 context in which to build the expressions .
* @ param solver The solver to use for the satisfiability evaluation .
*/
static std : : chrono : : milliseconds assertCuts ( storm : : storage : : SymbolicModelDescription const & symbolicModel , storm : : models : : sparse : : Model < T > const & model , std : : vector < boo st: : container : : flat_s et< uint_fast64_t > > const & labelSets , storm : : storage : : BitVector const & psiStates , VariableInformation const & variableInformation , RelevancyInformation const & relevancyInformation , storm : : solver : : SmtSolver & solver , bool addBackwardImplications ) {
static std : : chrono : : milliseconds assertCuts ( storm : : storage : : SymbolicModelDescription const & symbolicModel , storm : : models : : sparse : : Model < T > const & model , std : : vector < storm : : storage : : FlatS et< uint_fast64_t > > const & labelSets , storm : : storage : : BitVector const & psiStates , VariableInformation const & variableInformation , RelevancyInformation const & relevancyInformation , storm : : solver : : SmtSolver & solver , bool addBackwardImplications ) {
/ / Walk through the model and
/ / * identify labels enabled in initial states
/ / * identify labels that can directly precede a given action
@ -340,13 +341,13 @@ namespace storm {
STORM_LOG_THROW ( ! symbolicModel . isJaniModel ( ) | | ! symbolicModel . asJaniModel ( ) . usesAssignmentLevels ( ) , storm : : exceptions : : NotSupportedException , " Counterexample generation with backward implications is not supported for indexed assignments " ) ;
}
boo st: : container : : flat_s et< uint_fast64_t > initialLabels ;
std : : set < boo st: : container : : flat_s et< uint_fast64_t > > initialCombinations ;
boo st: : container : : flat_s et< uint_fast64_t > targetLabels ;
boo st: : container : : flat_s et< boo st: : container : : flat_s et< uint_fast64_t > > targetCombinations ;
std : : map < boo st: : container : : flat_s et< uint_fast64_t > , std : : set < boo st: : container : : flat_s et< uint_fast64_t > > > precedingLabels ;
std : : map < boo st: : container : : flat_s et< uint_fast64_t > , std : : set < boo st: : container : : flat_s et< uint_fast64_t > > > followingLabels ;
std : : map < uint_fast64_t , std : : set < boo st: : container : : flat_s et< uint_fast64_t > > > synchronizingLabels ;
storm : : storage : : FlatS et< uint_fast64_t > initialLabels ;
std : : set < storm : : storage : : FlatS et< uint_fast64_t > > initialCombinations ;
storm : : storage : : FlatS et< uint_fast64_t > targetLabels ;
storm : : storage : : FlatS et< storm : : storage : : FlatS et< uint_fast64_t > > targetCombinations ;
std : : map < storm : : storage : : FlatS et< uint_fast64_t > , std : : set < storm : : storage : : FlatS et< uint_fast64_t > > > precedingLabels ;
std : : map < storm : : storage : : FlatS et< uint_fast64_t > , std : : set < storm : : storage : : FlatS et< uint_fast64_t > > > followingLabels ;
std : : map < uint_fast64_t , std : : set < storm : : storage : : FlatS et< uint_fast64_t > > > synchronizingLabels ;
/ / Get some data from the model for convenient access .
storm : : storage : : SparseMatrix < T > const & transitionMatrix = model . getTransitionMatrix ( ) ;
@ -413,7 +414,7 @@ namespace storm {
}
/ / Store the found implications in a container similar to the preceding label sets .
std : : map < boo st: : container : : flat_s et< uint_fast64_t > , std : : set < boo st: : container : : flat_s et< uint_fast64_t > > > backwardImplications ;
std : : map < storm : : storage : : FlatS et< uint_fast64_t > , std : : set < storm : : storage : : FlatS et< uint_fast64_t > > > backwardImplications ;
if ( addBackwardImplications ) {
/ / Create a new solver over the same variables as the given symbolic model description to use it for
/ / determining the symbolic cuts .
@ -671,7 +672,7 @@ namespace storm {
STORM_LOG_DEBUG ( " Successfully gathered data for cuts. " ) ;
/ / Compute the sets of labels such that the transitions labeled with this set possess at least one known label .
boo st: : container : : flat_s et< boo st: : container : : flat_s et< uint_fast64_t > > hasKnownSuccessor ;
storm : : storage : : FlatS et< storm : : storage : : FlatS et< uint_fast64_t > > hasKnownSuccessor ;
for ( auto const & labelSetFollowingSetsPair : followingLabels ) {
for ( auto const & set : labelSetFollowingSetsPair . second ) {
if ( std : : includes ( relevancyInformation . knownLabels . begin ( ) , relevancyInformation . knownLabels . end ( ) , set . begin ( ) , set . end ( ) ) ) {
@ -682,7 +683,7 @@ namespace storm {
}
/ / Compute the sets of labels such that the transitions labeled with this set possess at least one known predecessor .
boo st: : container : : flat_s et< boo st: : container : : flat_s et< uint_fast64_t > > hasKnownPredecessor ;
storm : : storage : : FlatS et< storm : : storage : : FlatS et< uint_fast64_t > > hasKnownPredecessor ;
for ( auto const & labelSetImplicationsPair : backwardImplications ) {
for ( auto const & set : labelSetImplicationsPair . second ) {
if ( std : : includes ( relevancyInformation . knownLabels . begin ( ) , relevancyInformation . knownLabels . end ( ) , set . begin ( ) , set . end ( ) ) ) {
@ -700,7 +701,7 @@ namespace storm {
/ / combination that is already known . Otherwise this condition would be too strong .
bool initialCombinationKnown = false ;
for ( auto const & combination : initialCombinations ) {
boo st: : container : : flat_s et< uint_fast64_t > tmpSet ;
storm : : storage : : FlatS et< uint_fast64_t > tmpSet ;
std : : set_difference ( combination . begin ( ) , combination . end ( ) , relevancyInformation . knownLabels . begin ( ) , relevancyInformation . knownLabels . end ( ) , std : : inserter ( tmpSet , tmpSet . end ( ) ) ) ;
if ( tmpSet . size ( ) = = 0 ) {
initialCombinationKnown = true ;
@ -725,7 +726,7 @@ namespace storm {
/ / Likewise , if no target combination is known , we may assert that there is at least one .
bool targetCombinationKnown = false ;
for ( auto const & combination : targetCombinations ) {
boo st: : container : : flat_s et< uint_fast64_t > tmpSet ;
storm : : storage : : FlatS et< uint_fast64_t > tmpSet ;
std : : set_difference ( combination . begin ( ) , combination . end ( ) , relevancyInformation . knownLabels . begin ( ) , relevancyInformation . knownLabels . end ( ) , std : : inserter ( tmpSet , tmpSet . end ( ) ) ) ;
if ( tmpSet . size ( ) = = 0 ) {
targetCombinationKnown = true ;
@ -746,12 +747,12 @@ namespace storm {
if ( addBackwardImplications ) {
STORM_LOG_DEBUG ( " Asserting taken labels are followed and preceeded by another label if they are not a target label or an initial label, respectively. " ) ;
boost : : container : : flat_map < boo st: : container : : flat_s et< uint_fast64_t > , storm : : expressions : : Expression > labelSetToFormula ;
boost : : container : : flat_map < storm : : storage : : FlatS et< uint_fast64_t > , storm : : expressions : : Expression > labelSetToFormula ;
for ( auto const & labelSet : relevancyInformation . relevantLabelSets ) {
storm : : expressions : : Expression labelSetFormula = variableInformation . manager - > boolean ( false ) ;
/ / Compute the set of unknown labels on the left - hand side of the implication .
boo st: : container : : flat_s et< uint_fast64_t > unknownLhsLabels ;
storm : : storage : : FlatS et< uint_fast64_t > unknownLhsLabels ;
std : : set_difference ( labelSet . begin ( ) , labelSet . end ( ) , relevancyInformation . knownLabels . begin ( ) , relevancyInformation . knownLabels . end ( ) , std : : inserter ( unknownLhsLabels , unknownLhsLabels . end ( ) ) ) ;
for ( auto label : unknownLhsLabels ) {
labelSetFormula = labelSetFormula | | ! variableInformation . labelVariables . at ( variableInformation . labelToIndexMap . at ( label ) ) ;
@ -766,7 +767,7 @@ namespace storm {
auto const & followingLabelSets = followingLabels . at ( labelSet ) ;
for ( auto const & followingSet : followingLabelSets ) {
boo st: : container : : flat_s et< uint_fast64_t > tmpSet ;
storm : : storage : : FlatS et< uint_fast64_t > tmpSet ;
/ / Check which labels of the current following set are not known . This set must be non - empty , because
/ / otherwise a successor combination would already be known and control cannot reach this point .
@ -799,7 +800,7 @@ namespace storm {
auto const & preceedingLabelSets = backwardImplications . at ( labelSet ) ;
for ( auto const & preceedingSet : preceedingLabelSets ) {
boo st: : container : : flat_s et< uint_fast64_t > tmpSet ;
storm : : storage : : FlatS et< uint_fast64_t > tmpSet ;
/ / Check which labels of the current following set are not known . This set must be non - empty , because
/ / otherwise a predecessor combination would already be known and control cannot reach this point .
@ -868,7 +869,7 @@ namespace storm {
/*!
* Asserts constraints necessary to encode the reachability of at least one target state from the initial states .
*/
static void assertReachabilityCuts ( storm : : models : : sparse : : Model < T > const & model , std : : vector < boo st: : container : : flat_s et< uint_fast64_t > > const & labelSets , storm : : storage : : BitVector const & psiStates , VariableInformation const & variableInformation , RelevancyInformation const & relevancyInformation , storm : : solver : : SmtSolver & solver ) {
static void assertReachabilityCuts ( storm : : models : : sparse : : Model < T > const & model , std : : vector < storm : : storage : : FlatS et< uint_fast64_t > > const & labelSets , storm : : storage : : BitVector const & psiStates , VariableInformation const & variableInformation , RelevancyInformation const & relevancyInformation , storm : : solver : : SmtSolver & solver ) {
if ( ! variableInformation . hasReachabilityVariables ) {
throw storm : : exceptions : : InvalidStateException ( ) < < " Impossible to assert reachability cuts without the necessary variables. " ;
@ -885,14 +886,14 @@ namespace storm {
for ( auto relevantState : relevancyInformation . relevantStates ) {
if ( ! model . getInitialStates ( ) . get ( relevantState ) ) {
/ / Assert the constraints ( 1 ) .
boo st: : container : : flat_s et< uint_fast64_t > relevantPredecessors ;
storm : : storage : : FlatS et< uint_fast64_t > relevantPredecessors ;
for ( auto const & predecessorEntry : backwardTransitions . getRow ( relevantState ) ) {
if ( relevantState ! = predecessorEntry . getColumn ( ) & & relevancyInformation . relevantStates . get ( predecessorEntry . getColumn ( ) ) ) {
relevantPredecessors . insert ( predecessorEntry . getColumn ( ) ) ;
}
}
boo st: : container : : flat_s et< uint_fast64_t > relevantSuccessors ;
storm : : storage : : FlatS et< uint_fast64_t > relevantSuccessors ;
for ( auto const & relevantChoice : relevancyInformation . relevantChoicesForRelevantStates . at ( relevantState ) ) {
for ( auto const & successorEntry : transitionMatrix . getRow ( relevantChoice ) ) {
if ( relevantState ! = successorEntry . getColumn ( ) & & ( relevancyInformation . relevantStates . get ( successorEntry . getColumn ( ) ) | | psiStates . get ( successorEntry . getColumn ( ) ) ) ) {
@ -912,7 +913,7 @@ namespace storm {
solver . add ( expression ) ;
} else {
/ / Assert the constraints ( 2 ) .
boo st: : container : : flat_s et< uint_fast64_t > relevantSuccessors ;
storm : : storage : : FlatS et< uint_fast64_t > relevantSuccessors ;
for ( auto const & relevantChoice : relevancyInformation . relevantChoicesForRelevantStates . at ( relevantState ) ) {
for ( auto const & successorEntry : transitionMatrix . getRow ( relevantChoice ) ) {
if ( relevantState ! = successorEntry . getColumn ( ) & & ( relevancyInformation . relevantStates . get ( successorEntry . getColumn ( ) ) | | psiStates . get ( successorEntry . getColumn ( ) ) ) ) {
@ -936,7 +937,7 @@ namespace storm {
uint_fast64_t targetState = statePairIndexPair . first . second ;
/ / Assert constraint for ( 1 ) .
boo st: : container : : flat_s et< uint_fast64_t > choicesForStatePair ;
storm : : storage : : FlatS et< uint_fast64_t > choicesForStatePair ;
for ( auto const & relevantChoice : relevancyInformation . relevantChoicesForRelevantStates . at ( sourceState ) ) {
for ( auto const & successorEntry : transitionMatrix . getRow ( relevantChoice ) ) {
if ( successorEntry . getColumn ( ) = = targetState ) {
@ -1163,8 +1164,8 @@ namespace storm {
* @ param model The model from which to extract the information .
* @ param variableInformation A structure with information about the variables of the solver .
*/
static boo st: : container : : flat_s et< uint_fast64_t > getUsedLabelSet ( storm : : solver : : SmtSolver : : ModelReference const & model , VariableInformation const & variableInformation ) {
boo st: : container : : flat_s et< uint_fast64_t > result ;
static storm : : storage : : FlatS et< uint_fast64_t > getUsedLabelSet ( storm : : solver : : SmtSolver : : ModelReference const & model , VariableInformation const & variableInformation ) {
storm : : storage : : FlatS et< uint_fast64_t > result ;
for ( auto const & labelIndexPair : variableInformation . labelToIndexMap ) {
bool commandIncluded = model . getBooleanValue ( variableInformation . labelVariables . at ( labelIndexPair . second ) ) ;
@ -1213,7 +1214,7 @@ namespace storm {
* in order to satisfy the constraint system .
* @ return The smallest set of labels such that the constraint system of the solver is satisfiable .
*/
static boost : : optional < boo st: : container : : flat_s et< uint_fast64_t > > findSmallestCommandSet ( storm : : solver : : SmtSolver & solver , VariableInformation & variableInformation , uint_fast64_t & currentBound ) {
static boost : : optional < storm : : storage : : FlatS et< uint_fast64_t > > findSmallestCommandSet ( storm : : solver : : SmtSolver & solver , VariableInformation & variableInformation , uint_fast64_t & currentBound ) {
/ / Check if we can find a solution with the current bound .
storm : : expressions : : Expression assumption = ! variableInformation . auxiliaryVariables . back ( ) ;
@ -1239,10 +1240,10 @@ namespace storm {
return getUsedLabelSet ( * solver . getModel ( ) , variableInformation ) ;
}
static void ruleOutSingleSolution ( storm : : solver : : SmtSolver & solver , boo st: : container : : flat_s et< uint_fast64_t > const & labelSet , VariableInformation & variableInformation , RelevancyInformation const & relevancyInformation ) {
static void ruleOutSingleSolution ( storm : : solver : : SmtSolver & solver , storm : : storage : : FlatS et< uint_fast64_t > const & labelSet , VariableInformation & variableInformation , RelevancyInformation const & relevancyInformation ) {
std : : vector < storm : : expressions : : Expression > formulae ;
boo st: : container : : flat_s et< uint_fast64_t > unknownLabels ;
storm : : storage : : FlatS et< uint_fast64_t > unknownLabels ;
std : : set_intersection ( labelSet . begin ( ) , labelSet . end ( ) , relevancyInformation . minimalityLabels . begin ( ) , relevancyInformation . minimalityLabels . end ( ) , std : : inserter ( unknownLabels , unknownLabels . end ( ) ) ) ;
/ / std : : set_difference ( labelSet . begin ( ) , labelSet . end ( ) , relevancyInformation . knownLabels . begin ( ) , relevancyInformation . knownLabels . end ( ) , std : : inserter ( unknownLabels , unknownLabels . end ( ) ) ) ;
@ -1250,7 +1251,7 @@ namespace storm {
formulae . emplace_back ( ! variableInformation . labelVariables . at ( variableInformation . labelToIndexMap . at ( label ) ) ) ;
}
boo st: : container : : flat_s et< uint_fast64_t > remainingLabels ;
storm : : storage : : FlatS et< uint_fast64_t > remainingLabels ;
/ / std : : set_difference ( relevancyInformation . relevantLabels . begin ( ) , relevancyInformation . relevantLabels . end ( ) , labelSet . begin ( ) , labelSet . end ( ) , std : : inserter ( remainingLabels , remainingLabels . end ( ) ) ) ;
std : : set_difference ( relevancyInformation . minimalityLabels . begin ( ) , relevancyInformation . minimalityLabels . end ( ) , labelSet . begin ( ) , labelSet . end ( ) , std : : inserter ( remainingLabels , remainingLabels . end ( ) ) ) ;
@ -1262,10 +1263,10 @@ namespace storm {
assertDisjunction ( solver , formulae , * variableInformation . manager ) ;
}
static void ruleOutBiggerSolutions ( storm : : solver : : SmtSolver & solver , boo st: : container : : flat_s et< uint_fast64_t > const & labelSet , VariableInformation & variableInformation , RelevancyInformation const & relevancyInformation ) {
static void ruleOutBiggerSolutions ( storm : : solver : : SmtSolver & solver , storm : : storage : : FlatS et< uint_fast64_t > const & labelSet , VariableInformation & variableInformation , RelevancyInformation const & relevancyInformation ) {
std : : vector < storm : : expressions : : Expression > formulae ;
boo st: : container : : flat_s et< uint_fast64_t > unknownLabels ;
storm : : storage : : FlatS et< uint_fast64_t > unknownLabels ;
std : : set_intersection ( labelSet . begin ( ) , labelSet . end ( ) , relevancyInformation . minimalityLabels . begin ( ) , relevancyInformation . minimalityLabels . end ( ) , std : : inserter ( unknownLabels , unknownLabels . end ( ) ) ) ;
/ / std : : set_difference ( labelSet . begin ( ) , labelSet . end ( ) , relevancyInformation . knownLabels . begin ( ) , relevancyInformation . knownLabels . end ( ) , std : : inserter ( unknownLabels , unknownLabels . end ( ) ) ) ;
@ -1289,7 +1290,7 @@ namespace storm {
* @ param commandSet The currently chosen set of commands .
* @ param variableInformation A structure with information about the variables of the solver .
*/
static void analyzeZeroProbabilitySolution ( storm : : solver : : SmtSolver & solver , storm : : models : : sparse : : Model < T > const & subModel , std : : vector < boo st: : container : : flat_s et< uint_fast64_t > > const & subLabelSets , storm : : models : : sparse : : Model < T > const & originalModel , std : : vector < boo st: : container : : flat_s et< uint_fast64_t > > const & originalLabelSets , storm : : storage : : BitVector const & phiStates , storm : : storage : : BitVector const & psiStates , boo st: : container : : flat_s et< uint_fast64_t > const & commandSet , VariableInformation & variableInformation , RelevancyInformation const & relevancyInformation ) {
static void analyzeZeroProbabilitySolution ( storm : : solver : : SmtSolver & solver , storm : : models : : sparse : : Model < T > const & subModel , std : : vector < storm : : storage : : FlatS et< uint_fast64_t > > const & subLabelSets , storm : : models : : sparse : : Model < T > const & originalModel , std : : vector < storm : : storage : : FlatS et< uint_fast64_t > > const & originalLabelSets , storm : : storage : : BitVector const & phiStates , storm : : storage : : BitVector const & psiStates , storm : : storage : : FlatS et< uint_fast64_t > const & commandSet , VariableInformation & variableInformation , RelevancyInformation const & relevancyInformation ) {
storm : : storage : : BitVector reachableStates ( subModel . getNumberOfStates ( ) ) ;
STORM_LOG_DEBUG ( " Analyzing solution with zero probability. " ) ;
@ -1307,7 +1308,7 @@ namespace storm {
std : : vector < uint_fast64_t > const & nondeterministicChoiceIndices = transitionMatrix . getRowGroupIndices ( ) ;
/ / Now determine which states and labels are actually reachable .
boo st: : container : : flat_s et< uint_fast64_t > reachableLabels ;
storm : : storage : : FlatS et< uint_fast64_t > reachableLabels ;
while ( ! stack . empty ( ) ) {
uint_fast64_t currentState = stack . back ( ) ;
stack . pop_back ( ) ;
@ -1345,15 +1346,15 @@ namespace storm {
storm : : storage : : BitVector unreachableRelevantStates = ~ reachableStates & relevancyInformation . relevantStates ;
storm : : storage : : BitVector statesThatCanReachTargetStates = storm : : utility : : graph : : performProbGreater0E ( subModel . getBackwardTransitions ( ) , phiStates , psiStates ) ;
boo st: : container : : flat_s et< uint_fast64_t > locallyRelevantLabels ;
storm : : storage : : FlatS et< uint_fast64_t > locallyRelevantLabels ;
std : : set_difference ( relevancyInformation . relevantLabels . begin ( ) , relevancyInformation . relevantLabels . end ( ) , commandSet . begin ( ) , commandSet . end ( ) , std : : inserter ( locallyRelevantLabels , locallyRelevantLabels . begin ( ) ) ) ;
std : : vector < boo st: : container : : flat_s et< uint_fast64_t > > guaranteedLabelSets = storm : : utility : : counterexamples : : getGuaranteedLabelSets ( originalModel , originalLabelSets , statesThatCanReachTargetStates , locallyRelevantLabels ) ;
std : : vector < storm : : storage : : FlatS et< uint_fast64_t > > guaranteedLabelSets = storm : : utility : : counterexamples : : getGuaranteedLabelSets ( originalModel , originalLabelSets , statesThatCanReachTargetStates , locallyRelevantLabels ) ;
STORM_LOG_DEBUG ( " Found " < < reachableLabels . size ( ) < < " reachable labels and " < < reachableStates . getNumberOfSetBits ( ) < < " reachable states. " ) ;
/ / Search for states on the border of the reachable state space , i . e . states that are still reachable
/ / and possess a ( disabled ) option to leave the reachable part of the state space .
std : : set < boo st: : container : : flat_s et< uint_fast64_t > > cutLabels ;
std : : set < storm : : storage : : FlatS et< uint_fast64_t > > cutLabels ;
for ( auto state : reachableStates ) {
for ( auto currentChoice : relevancyInformation . relevantChoicesForRelevantStates . at ( state ) ) {
if ( ! std : : includes ( commandSet . begin ( ) , commandSet . end ( ) , originalLabelSets [ currentChoice ] . begin ( ) , originalLabelSets [ currentChoice ] . end ( ) ) ) {
@ -1367,7 +1368,7 @@ namespace storm {
}
if ( isBorderChoice ) {
boo st: : container : : flat_s et< uint_fast64_t > currentLabelSet ;
storm : : storage : : FlatS et< uint_fast64_t > currentLabelSet ;
std : : set_difference ( originalLabelSets [ currentChoice ] . begin ( ) , originalLabelSets [ currentChoice ] . end ( ) , commandSet . begin ( ) , commandSet . end ( ) , std : : inserter ( currentLabelSet , currentLabelSet . begin ( ) ) ) ;
std : : set_difference ( guaranteedLabelSets [ state ] . begin ( ) , guaranteedLabelSets [ state ] . end ( ) , commandSet . begin ( ) , commandSet . end ( ) , std : : inserter ( currentLabelSet , currentLabelSet . end ( ) ) ) ;
@ -1379,9 +1380,9 @@ namespace storm {
/ / Given the results of the previous analysis , we construct the implications .
std : : vector < storm : : expressions : : Expression > formulae ;
boo st: : container : : flat_s et< uint_fast64_t > unknownReachableLabels ;
storm : : storage : : FlatS et< uint_fast64_t > unknownReachableLabels ;
std : : set_difference ( reachableLabels . begin ( ) , reachableLabels . end ( ) , relevancyInformation . knownLabels . begin ( ) , relevancyInformation . knownLabels . end ( ) , std : : inserter ( unknownReachableLabels , unknownReachableLabels . end ( ) ) ) ;
boo st: : container : : flat_s et< uint64_t > unknownReachableMinimalityLabels ;
storm : : storage : : FlatS et< uint64_t > unknownReachableMinimalityLabels ;
std : : set_intersection ( unknownReachableLabels . begin ( ) , unknownReachableLabels . end ( ) , relevancyInformation . minimalityLabels . begin ( ) , relevancyInformation . minimalityLabels . end ( ) , std : : inserter ( unknownReachableMinimalityLabels , unknownReachableMinimalityLabels . end ( ) ) ) ;
for ( auto label : unknownReachableMinimalityLabels ) {
@ -1412,7 +1413,7 @@ namespace storm {
* @ param commandSet The currently chosen set of commands .
* @ param variableInformation A structure with information about the variables of the solver .
*/
static void analyzeInsufficientProbabilitySolution ( storm : : solver : : SmtSolver & solver , storm : : models : : sparse : : Model < T > const & subModel , std : : vector < boo st: : container : : flat_s et< uint_fast64_t > > const & subLabelSets , storm : : models : : sparse : : Model < T > const & originalModel , std : : vector < boo st: : container : : flat_s et< uint_fast64_t > > const & originalLabelSets , storm : : storage : : BitVector const & phiStates , storm : : storage : : BitVector const & psiStates , boo st: : container : : flat_s et< uint_fast64_t > const & commandSet , VariableInformation & variableInformation , RelevancyInformation const & relevancyInformation ) {
static void analyzeInsufficientProbabilitySolution ( storm : : solver : : SmtSolver & solver , storm : : models : : sparse : : Model < T > const & subModel , std : : vector < storm : : storage : : FlatS et< uint_fast64_t > > const & subLabelSets , storm : : models : : sparse : : Model < T > const & originalModel , std : : vector < storm : : storage : : FlatS et< uint_fast64_t > > const & originalLabelSets , storm : : storage : : BitVector const & phiStates , storm : : storage : : BitVector const & psiStates , storm : : storage : : FlatS et< uint_fast64_t > const & commandSet , VariableInformation & variableInformation , RelevancyInformation const & relevancyInformation ) {
STORM_LOG_DEBUG ( " Analyzing solution with insufficient probability. " ) ;
@ -1430,7 +1431,7 @@ namespace storm {
std : : vector < uint_fast64_t > const & nondeterministicChoiceIndices = transitionMatrix . getRowGroupIndices ( ) ;
/ / Now determine which states and labels are actually reachable .
boo st: : container : : flat_s et< uint_fast64_t > reachableLabels ;
storm : : storage : : FlatS et< uint_fast64_t > reachableLabels ;
while ( ! stack . empty ( ) ) {
uint_fast64_t currentState = stack . back ( ) ;
stack . pop_back ( ) ;
@ -1462,17 +1463,17 @@ namespace storm {
storm : : storage : : BitVector unreachableRelevantStates = ~ reachableStates & relevancyInformation . relevantStates ;
storm : : storage : : BitVector statesThatCanReachTargetStates = storm : : utility : : graph : : performProbGreater0E ( subModel . getBackwardTransitions ( ) , phiStates , psiStates ) ;
boo st: : container : : flat_s et< uint_fast64_t > locallyRelevantLabels ;
storm : : storage : : FlatS et< uint_fast64_t > locallyRelevantLabels ;
std : : set_difference ( relevancyInformation . relevantLabels . begin ( ) , relevancyInformation . relevantLabels . end ( ) , commandSet . begin ( ) , commandSet . end ( ) , std : : inserter ( locallyRelevantLabels , locallyRelevantLabels . begin ( ) ) ) ;
std : : vector < boo st: : container : : flat_s et< uint_fast64_t > > guaranteedLabelSets = storm : : utility : : counterexamples : : getGuaranteedLabelSets ( originalModel , originalLabelSets , statesThatCanReachTargetStates , locallyRelevantLabels ) ;
std : : vector < storm : : storage : : FlatS et< uint_fast64_t > > guaranteedLabelSets = storm : : utility : : counterexamples : : getGuaranteedLabelSets ( originalModel , originalLabelSets , statesThatCanReachTargetStates , locallyRelevantLabels ) ;
/ / Search for states for which we could enable another option and possibly improve the reachability probability .
std : : set < boo st: : container : : flat_s et< uint_fast64_t > > cutLabels ;
std : : set < storm : : storage : : FlatS et< uint_fast64_t > > cutLabels ;
for ( auto state : reachableStates ) {
for ( auto currentChoice : relevancyInformation . relevantChoicesForRelevantStates . at ( state ) ) {
if ( ! std : : includes ( commandSet . begin ( ) , commandSet . end ( ) , originalLabelSets [ currentChoice ] . begin ( ) , originalLabelSets [ currentChoice ] . end ( ) ) ) {
boo st: : container : : flat_s et< uint_fast64_t > currentLabelSet ;
storm : : storage : : FlatS et< uint_fast64_t > currentLabelSet ;
std : : set_difference ( originalLabelSets [ currentChoice ] . begin ( ) , originalLabelSets [ currentChoice ] . end ( ) , commandSet . begin ( ) , commandSet . end ( ) , std : : inserter ( currentLabelSet , currentLabelSet . begin ( ) ) ) ;
std : : set_difference ( guaranteedLabelSets [ state ] . begin ( ) , guaranteedLabelSets [ state ] . end ( ) , commandSet . begin ( ) , commandSet . end ( ) , std : : inserter ( currentLabelSet , currentLabelSet . end ( ) ) ) ;
@ -1483,9 +1484,9 @@ namespace storm {
/ / Given the results of the previous analysis , we construct the implications
std : : vector < storm : : expressions : : Expression > formulae ;
boo st: : container : : flat_s et< uint_fast64_t > unknownReachableLabels ;
storm : : storage : : FlatS et< uint_fast64_t > unknownReachableLabels ;
std : : set_difference ( reachableLabels . begin ( ) , reachableLabels . end ( ) , relevancyInformation . knownLabels . begin ( ) , relevancyInformation . knownLabels . end ( ) , std : : inserter ( unknownReachableLabels , unknownReachableLabels . end ( ) ) ) ;
boo st: : container : : flat_s et< uint64_t > unknownReachableMinimalityLabels ;
storm : : storage : : FlatS et< uint64_t > unknownReachableMinimalityLabels ;
std : : set_intersection ( unknownReachableLabels . begin ( ) , unknownReachableLabels . end ( ) , relevancyInformation . minimalityLabels . begin ( ) , relevancyInformation . minimalityLabels . end ( ) , std : : inserter ( unknownReachableMinimalityLabels , unknownReachableMinimalityLabels . end ( ) ) ) ;
for ( auto label : unknownReachableMinimalityLabels ) {
@ -1510,11 +1511,11 @@ namespace storm {
* Returns the sub - model obtained from removing all choices that do not originate from the specified filterLabelSet .
* Also returns the Labelsets of the sub - model .
*/
static std : : pair < std : : shared_ptr < storm : : models : : sparse : : Model < T > > , std : : vector < boo st: : container : : flat_s et< uint_fast64_t > > > restrictModelToLabelSet ( storm : : models : : sparse : : Model < T > const & model , boo st: : container : : flat_s et< uint_fast64_t > const & filterLabelSet , boost : : optional < uint64_t > absorbState = boost : : none ) {
static std : : pair < std : : shared_ptr < storm : : models : : sparse : : Model < T > > , std : : vector < storm : : storage : : FlatS et< uint_fast64_t > > > restrictModelToLabelSet ( storm : : models : : sparse : : Model < T > const & model , storm : : storage : : FlatS et< uint_fast64_t > const & filterLabelSet , boost : : optional < uint64_t > absorbState = boost : : none ) {
bool customRowGrouping = model . isOfType ( storm : : models : : ModelType : : Mdp ) ;
std : : vector < boo st: : container : : flat_s et< uint_fast64_t > > resultLabelSet ;
std : : vector < storm : : storage : : FlatS et< uint_fast64_t > > resultLabelSet ;
storm : : storage : : SparseMatrixBuilder < T > transitionMatrixBuilder ( 0 , model . getTransitionMatrix ( ) . getColumnCount ( ) , 0 , true , customRowGrouping , model . getTransitionMatrix ( ) . getRowGroupCount ( ) ) ;
/ / Check for each choice of each state , whether the choice commands are fully contained in the given command set .
@ -1643,11 +1644,11 @@ namespace storm {
* @ param strictBound Indicates whether the threshold needs to be achieved ( true ) or exceeded ( false ) .
* @ param options A set of options for customization .
*/
static std : : vector < boo st: : container : : flat_s et< uint_fast64_t > > getMinimalLabelSet ( Environment const & env , GeneratorStats & stats , storm : : storage : : SymbolicModelDescription const & symbolicModel , storm : : models : : sparse : : Model < T > const & model , storm : : storage : : BitVector const & phiStates , storm : : storage : : BitVector const & psiStates , std : : vector < double > propertyThreshold , boost : : optional < std : : vector < std : : string > > const & rewardName , bool strictBound , boo st: : container : : flat_s et< uint_fast64_t > const & dontCareLabels = boo st: : container : : flat_s et< uint_fast64_t > ( ) , Options const & options = Options ( ) ) {
static std : : vector < storm : : storage : : FlatS et< uint_fast64_t > > getMinimalLabelSet ( Environment const & env , GeneratorStats & stats , storm : : storage : : SymbolicModelDescription const & symbolicModel , storm : : models : : sparse : : Model < T > const & model , storm : : storage : : BitVector const & phiStates , storm : : storage : : BitVector const & psiStates , std : : vector < double > propertyThreshold , boost : : optional < std : : vector < std : : string > > const & rewardName , bool strictBound , storm : : storage : : FlatS et< uint_fast64_t > const & dontCareLabels = storm : : storage : : FlatS et< uint_fast64_t > ( ) , Options const & options = Options ( ) ) {
# ifdef STORM_HAVE_Z3
STORM_LOG_THROW ( propertyThreshold . size ( ) > 0 , storm : : exceptions : : InvalidArgumentException , " At least one threshold has to be specified. " ) ;
STORM_LOG_THROW ( propertyThreshold . size ( ) = = 1 | | ( rewardName & & rewardName . get ( ) . size ( ) = = propertyThreshold . size ( ) ) , storm : : exceptions : : InvalidArgumentException , " Multiple thresholds is only supported for multiple reward structures " ) ;
std : : vector < boo st: : container : : flat_s et< uint_fast64_t > > result ;
std : : vector < storm : : storage : : FlatS et< uint_fast64_t > > result ;
/ / Set up all clocks used for time measurement .
auto totalClock = std : : chrono : : high_resolution_clock : : now ( ) ;
auto timeOfLastMessage = std : : chrono : : high_resolution_clock : : now ( ) ;
@ -1670,7 +1671,7 @@ namespace storm {
STORM_LOG_THROW ( model . hasChoiceOrigins ( ) , storm : : exceptions : : InvalidArgumentException , " Restriction to minimal command set is impossible for model without choice origins. " ) ;
STORM_LOG_THROW ( model . getChoiceOrigins ( ) - > isPrismChoiceOrigins ( ) | | model . getChoiceOrigins ( ) - > isJaniChoiceOrigins ( ) , storm : : exceptions : : InvalidArgumentException , " Restriction to label set is impossible for model without PRISM or JANI choice origins. " ) ;
std : : vector < boo st: : container : : flat_s et< uint_fast64_t > > labelSets ( model . getNumberOfChoices ( ) ) ;
std : : vector < storm : : storage : : FlatS et< uint_fast64_t > > labelSets ( model . getNumberOfChoices ( ) ) ;
if ( model . getChoiceOrigins ( ) - > isPrismChoiceOrigins ( ) ) {
storm : : storage : : sparse : : PrismChoiceOrigins const & choiceOrigins = model . getChoiceOrigins ( ) - > asPrismChoiceOrigins ( ) ;
for ( uint_fast64_t choice = 0 ; choice < model . getNumberOfChoices ( ) ; + + choice ) {
@ -1730,7 +1731,7 @@ namespace storm {
/ / Otherwise , the current solution has to be ruled out and the next smallest solution is retrieved from
/ / the solver .
boo st: : container : : flat_s et< uint_fast64_t > commandSet ( relevancyInformation . knownLabels ) ;
storm : : storage : : FlatS et< uint_fast64_t > commandSet ( relevancyInformation . knownLabels ) ;
/ / If there are no relevant labels , return directly .
if ( relevancyInformation . relevantLabels . empty ( ) ) {
@ -1758,7 +1759,7 @@ namespace storm {
}
STORM_LOG_DEBUG ( " Computing minimal command set. " ) ;
solverClock = std : : chrono : : high_resolution_clock : : now ( ) ;
boost : : optional < boo st: : container : : flat_s et< uint_fast64_t > > smallest = findSmallestCommandSet ( * solver , variableInformation , currentBound ) ;
boost : : optional < storm : : storage : : FlatS et< uint_fast64_t > > smallest = findSmallestCommandSet ( * solver , variableInformation , currentBound ) ;
totalSolverTime + = std : : chrono : : high_resolution_clock : : now ( ) - solverClock ;
if ( smallest = = boost : : none ) {
STORM_LOG_DEBUG ( " No further counterexamples. " ) ;
@ -1784,7 +1785,7 @@ namespace storm {
auto subChoiceOrigins = restrictModelToLabelSet ( model , commandSet , psiStates . getNextSetIndex ( 0 ) ) ;
std : : shared_ptr < storm : : models : : sparse : : Model < T > > const & subModel = subChoiceOrigins . first ;
std : : vector < boo st: : container : : flat_s et< uint_fast64_t > > const & subLabelSets = subChoiceOrigins . second ;
std : : vector < storm : : storage : : FlatS et< uint_fast64_t > > const & subLabelSets = subChoiceOrigins . second ;
/ / Now determine the maximal reachability probability in the sub - model .
maximalPropertyValue = computeMaximalReachabilityProbability ( env , * subModel , phiStates , psiStates , rewardName ) ;
@ -1864,7 +1865,7 @@ namespace storm {
stats . iterations = iterations ;
if ( storm : : settings : : getModule < storm : : settings : : modules : : CoreSettings > ( ) . isShowStatisticsSet ( ) ) {
boo st: : container : : flat_s et< uint64_t > allLabels ;
storm : : storage : : FlatS et< uint64_t > allLabels ;
for ( auto const & e : labelSets ) {
allLabels . insert ( e . begin ( ) , e . end ( ) ) ;
}
@ -1894,7 +1895,7 @@ namespace storm {
# endif
}
static void extendLabelSetLowerBound ( storm : : models : : sparse : : Model < T > const & model , boo st: : container : : flat_s et< uint_fast64_t > & commandSet , storm : : storage : : BitVector const & phiStates , storm : : storage : : BitVector const & psiStates , bool silent = false ) {
static void extendLabelSetLowerBound ( storm : : models : : sparse : : Model < T > const & model , storm : : storage : : FlatS et< uint_fast64_t > & commandSet , storm : : storage : : BitVector const & phiStates , storm : : storage : : BitVector const & psiStates , bool silent = false ) {
auto startTime = std : : chrono : : high_resolution_clock : : now ( ) ;
/ / Create sub - model that only contains the choices allowed by the given command set .
@ -2080,7 +2081,7 @@ namespace storm {
}
static std : : vector < boo st: : container : : flat_s et< uint_fast64_t > > computeCounterexampleLabelSet ( Environment const & env , GeneratorStats & stats , storm : : storage : : SymbolicModelDescription const & symbolicModel , storm : : models : : sparse : : Model < T > const & model , CexInput const & counterexInput , boo st: : container : : flat_s et< uint_fast64_t > const & dontCareLabels = boo st: : container : : flat_s et< uint_fast64_t > ( ) , Options const & options = Options ( true ) ) {
static std : : vector < storm : : storage : : FlatS et< uint_fast64_t > > computeCounterexampleLabelSet ( Environment const & env , GeneratorStats & stats , storm : : storage : : SymbolicModelDescription const & symbolicModel , storm : : models : : sparse : : Model < T > const & model , CexInput const & counterexInput , storm : : storage : : FlatS et< uint_fast64_t > const & dontCareLabels = storm : : storage : : FlatS et< uint_fast64_t > ( ) , Options const & options = Options ( true ) ) {
STORM_LOG_THROW ( model . isOfType ( storm : : models : : ModelType : : Dtmc ) | | model . isOfType ( storm : : models : : ModelType : : Mdp ) , storm : : exceptions : : NotSupportedException , " MaxSAT-based counterexample generation is supported only for discrete-time models. " ) ;
/ / Delegate the actual computation work to the function of equal name .
Matthias Volk
6 years ago