Made lattice smaller

unit_tests/main_lattice_generation.cpp

@@ -19,7 +19,7 @@ int main()
 
 	std::vector<generator_t*> gen_vec;
 	
-	rbgen_t rbgen (50, 10);
+	rbgen_t rbgen (20, 10);
 
 	gen_vec.push_back(&rbgen);