|
|
@ -511,12 +511,11 @@ namespace storm { |
|
|
|
} |
|
|
|
stateVector.push_back(state); |
|
|
|
} |
|
|
|
|
|
|
|
// Start creating the Lattice
|
|
|
|
storm::analysis::Lattice *lattice = new storm::analysis::Lattice(topStates, bottomStates, numberOfStates); |
|
|
|
storm::storage::BitVector oldStates(numberOfStates); |
|
|
|
// Create a copy of the states already present in the lattice.
|
|
|
|
storm::storage::BitVector seenStates = topStates|=bottomStates; |
|
|
|
storm::storage::BitVector seenStates = topStates|= bottomStates; |
|
|
|
|
|
|
|
while (oldStates != seenStates) { |
|
|
|
// As long as new states are added to the lattice, continue.
|
|
|
@ -530,65 +529,60 @@ namespace storm { |
|
|
|
&& seenStates[currentState->successor1] |
|
|
|
&& seenStates[currentState->successor2]) { |
|
|
|
|
|
|
|
// Check if the current state number has not been added, but its successors have been added.
|
|
|
|
if (currentState->successor1 == currentState->successor2) { |
|
|
|
// If there is only one successor, the state should be added to the same Node as its successor
|
|
|
|
lattice->addToNode(currentState->stateNumber, lattice->getNode(currentState->successor1)); |
|
|
|
// Add stateNumber to the set with seen states.
|
|
|
|
seenStates.set(currentState->stateNumber); |
|
|
|
} else { |
|
|
|
// Otherwise, check how the two states compare, and add if the comparison is possible.
|
|
|
|
uint_fast64_t successor1 = currentState->successor1; |
|
|
|
uint_fast64_t successor2 = currentState->successor2; |
|
|
|
int compareResult = lattice->compare(successor1, successor2); |
|
|
|
if (compareResult == 1 || compareResult == 2) { |
|
|
|
|
|
|
|
if (compareResult == 2) { |
|
|
|
// swap
|
|
|
|
auto temp = successor1; |
|
|
|
successor1 = successor2; |
|
|
|
successor2 = temp; |
|
|
|
} |
|
|
|
// Additional check, if states have the same probability of reaching a given next state,
|
|
|
|
// then they should be at the same node
|
|
|
|
// TODO: can this be removed, e.g. adding a step to preprocessing, making this superfluous
|
|
|
|
storm::analysis::Lattice::Node *above = lattice->getNode(successor1); |
|
|
|
storm::analysis::Lattice::Node *below = lattice->getNode(successor2); |
|
|
|
std::vector<storm::analysis::Lattice::Node *> states1 = above->below; |
|
|
|
std::vector<storm::analysis::Lattice::Node *> states2 = below->above; |
|
|
|
for (auto itr1 = states1.begin(); itr1 < states1.end(); ++itr1) { |
|
|
|
for (auto itr2 = states2.begin(); itr2 < states2.end(); ++itr2) { |
|
|
|
if ((*itr1)->states == (*itr2)->states) { |
|
|
|
ValueType prob1 = getProbability(currentState->stateNumber, successor1, matrix); |
|
|
|
ValueType prob2 = getProbability(currentState->stateNumber, successor2, matrix); |
|
|
|
if (prob1 != ValueType(1) |
|
|
|
&& prob2 != ValueType(1) |
|
|
|
&& getProbability((*itr1)->states, above->states, matrix) == prob1 |
|
|
|
&& getProbability((*itr1)->states, below->states, matrix) == prob2) { |
|
|
|
lattice->addToNode(currentState->stateNumber, (*itr1)); |
|
|
|
seenStates.set(currentState->stateNumber); |
|
|
|
} |
|
|
|
|
|
|
|
// Otherwise, check how the two states compare, and add if the comparison is possible.
|
|
|
|
uint_fast64_t successor1 = currentState->successor1; |
|
|
|
uint_fast64_t successor2 = currentState->successor2; |
|
|
|
int compareResult = lattice->compare(successor1, successor2); |
|
|
|
if (compareResult == 1 || compareResult == 2) { |
|
|
|
// getNode will not return nullptr, as compare already checked this
|
|
|
|
if (compareResult == 2) { |
|
|
|
// swap
|
|
|
|
auto temp = successor1; |
|
|
|
successor1 = successor2; |
|
|
|
successor2 = temp; |
|
|
|
} |
|
|
|
// Additional check, if states have the same probability of reaching a given next state,
|
|
|
|
// then they should be at the same node
|
|
|
|
// TODO: can this be removed, e.g. adding a step to preprocessing, making this superfluous
|
|
|
|
// TODO: 1 prob. and same probs to same states should be removed from matrix
|
|
|
|
storm::analysis::Lattice::Node *above = lattice->getNode(successor1); |
|
|
|
storm::analysis::Lattice::Node *below = lattice->getNode(successor2); |
|
|
|
std::vector<storm::analysis::Lattice::Node *> states1 = above->below; |
|
|
|
std::vector<storm::analysis::Lattice::Node *> states2 = below->above; |
|
|
|
for (auto itr1 = states1.begin(); itr1 < states1.end(); ++itr1) { |
|
|
|
for (auto itr2 = states2.begin(); itr2 < states2.end(); ++itr2) { |
|
|
|
if ((*itr1)->states == (*itr2)->states) { |
|
|
|
ValueType prob1 = getProbability(currentState->stateNumber, successor1, matrix); |
|
|
|
ValueType prob2 = getProbability(currentState->stateNumber, successor2, matrix); |
|
|
|
if (prob1 != ValueType(1) |
|
|
|
&& prob2 != ValueType(1) |
|
|
|
&& getProbability((*itr1)->states, above->states, matrix) == prob1 |
|
|
|
&& getProbability((*itr1)->states, below->states, matrix) == prob2) { |
|
|
|
lattice->addToNode(currentState->stateNumber, (*itr1)); |
|
|
|
seenStates.set(currentState->stateNumber); |
|
|
|
} |
|
|
|
} |
|
|
|
} |
|
|
|
} |
|
|
|
|
|
|
|
if (!seenStates.get(currentState->stateNumber)) { |
|
|
|
// successor 1 is closer to top than successor 2
|
|
|
|
lattice->addBetween(currentState->stateNumber, lattice->getNode(successor1), |
|
|
|
lattice->getNode(successor2)); |
|
|
|
// Add stateNumber to the set with seen states.
|
|
|
|
seenStates.set(currentState->stateNumber); |
|
|
|
} |
|
|
|
} else if (compareResult == 0) { |
|
|
|
// the successors are at the same level
|
|
|
|
lattice->addToNode(currentState->stateNumber, lattice->getNode(successor1)); |
|
|
|
if (!seenStates.get(currentState->stateNumber)) { |
|
|
|
// successor 1 is closer to top than successor 2
|
|
|
|
lattice->addBetween(currentState->stateNumber, lattice->getNode(successor1), |
|
|
|
lattice->getNode(successor2)); |
|
|
|
// Add stateNumber to the set with seen states.
|
|
|
|
seenStates.set(currentState->stateNumber); |
|
|
|
} else { |
|
|
|
// TODO: what to do?
|
|
|
|
STORM_LOG_DEBUG("Failed to add" << currentState->stateNumber << "\n"); |
|
|
|
} |
|
|
|
} else if (compareResult == 0) { |
|
|
|
// the successors are at the same level
|
|
|
|
lattice->addToNode(currentState->stateNumber, lattice->getNode(successor1)); |
|
|
|
// Add stateNumber to the set with seen states.
|
|
|
|
seenStates.set(currentState->stateNumber); |
|
|
|
} else { |
|
|
|
// TODO: what to do?
|
|
|
|
STORM_LOG_DEBUG("Failed to add" << currentState->stateNumber << "\n"); |
|
|
|
} |
|
|
|
|
|
|
|
} |
|
|
|
} |
|
|
|
} |
|
|
|