fprintf(stderr,"\n-----------------------\nnumber of words = %lu\n------------------------\n", seSize);
encoder.setBit(seSize);
offsets = new CSA::DeltaVector(encoder, seSize+1);
fprintf(stderr,"\n-----------------------\nnumber of words = %lu\n------------------------\n", seSize);
encoder.setBit(seSize);
offsets = new CSA::DeltaVector(encoder, seSize+1);