pl.start("Verifying composite iterators in " + index[i] + "...");
additionalReader = index[ i ].getReader();
for (t = 0; t < numberOfTerms[ i ]; t++) {
for (u = 0; u < numberOfTerms[ i ]; u++) {
s0.clear();
s1.clear();
// TODO: in case we have positions, we should check them, too
IntIterators.pour( termLists ? indexReader[ i ].documents( terms[ i ].get( t ) ) : indexReader[ i ].documents( t ), s0 );
IntIterators.pour( termLists ? indexReader[ i ].documents( terms[ i ].get( u ) ) : indexReader[ i ].documents( u ), s1 );
s0.retainAll( s1 );