private List<ARGState> chooseIfArbitrary(
ARGState parent, List<ARGState> pRelevantChildrenOfElement) {
if (pRelevantChildrenOfElement.size() <= 1) {
return pRelevantChildrenOfElement;
}
List<ARGState> result = new ArrayList<>(2);
for (ARGState candidate : pRelevantChildrenOfElement) {
boolean valid = true;
if (!result.isEmpty()) {
Set<ARGState> candidateParents = ImmutableSet.copyOf(candidate.getParents());
Set<ARGState> candidateChildren = ImmutableSet.copyOf(candidate.getChildren());
for (ARGState chosen : result) {
if (parent.getEdgesToChild(chosen).equals(parent.getEdgesToChild(candidate))) {
Set<ARGState> chosenParents = ImmutableSet.copyOf(chosen.getParents());
Set<ARGState> chosenChildren = ImmutableSet.copyOf(chosen.getChildren());
if (candidateParents.equals(chosenParents)
&& candidateChildren.equals(chosenChildren)) {
valid = false;
break;
}
}
}
}
if (valid) {
result.add(candidate);
}
}
return result;
}
public void writeCoverageReport(
final PrintStream pStatisticsOutput, final ReachedSet pReached, final CFA pCfa) {
if (!enabled) {
return;
}
Multiset<FunctionEntryNode> reachedLocations = getFunctionEntriesFromReached(pReached);
Map<String, FileCoverageInformation> infosPerFile = new HashMap<>();
// Add information about existing functions
for (FunctionEntryNode entryNode : pCfa.getAllFunctionHeads()) {
final FileLocation loc = entryNode.getFileLocation();
if (loc.getStartingLineNumber() == 0) {
// dummy location
continue;
}
final String functionName = entryNode.getFunctionName();
final FileCoverageInformation infos = getFileInfoTarget(loc, infosPerFile);
final int startingLine = loc.getStartingLineInOrigin();
final int endingLine = loc.getEndingLineInOrigin();
infos.addExistingFunction(functionName, startingLine, endingLine);
if (reachedLocations.contains(entryNode)) {
infos.addVisitedFunction(entryNode.getFunctionName(), reachedLocations.count(entryNode));
}
}
// Add information about existing locations
for (CFANode node : pCfa.getAllNodes()) {
for (int i = 0; i < node.getNumLeavingEdges(); i++) {
handleExistedEdge(node.getLeavingEdge(i), infosPerFile);
}
}
Set<CFANode> reachedNodes =
from(pReached).transform(EXTRACT_LOCATION).filter(notNull()).toSet();
// Add information about visited locations
for (AbstractState state : pReached) {
ARGState argState = AbstractStates.extractStateByType(state, ARGState.class);
if (argState != null) {
for (ARGState child : argState.getChildren()) {
if (!child.isCovered()) {
List<CFAEdge> edges = argState.getEdgesToChild(child);
if (edges.size() > 1) {
for (CFAEdge innerEdge : edges) {
handleCoveredEdge(innerEdge, infosPerFile);
}
// BAM produces paths with no edge connection thus the list will be empty
} else if (!edges.isEmpty()) {
handleCoveredEdge(Iterables.getOnlyElement(edges), infosPerFile);
}
}
}
} else {
// Simple kind of analysis
// Cover all edges from reached nodes
// It is less precise, but without ARG it is impossible to know what path we chose
CFANode node = AbstractStates.extractLocation(state);
for (int i = 0; i < node.getNumLeavingEdges(); i++) {
CFAEdge edge = node.getLeavingEdge(i);
if (reachedNodes.contains(edge.getSuccessor())) {
handleCoveredEdge(edge, infosPerFile);
}
}
}
}
for (CoverageWriter w : reportWriters) {
w.write(infosPerFile, pStatisticsOutput);
}
}
