diff --git a/src/interface/Driver.cpp b/src/interface/Driver.cpp
index 7adb4fb..62298b9 100644
--- a/src/interface/Driver.cpp
+++ b/src/interface/Driver.cpp
@@ -590,23 +590,27 @@ std::vector<std::string> Driver::GetSimpleRegexes(std::string re_var, int num_re
 }
 
 // NOTICE: RESTRICTS OUTPUT TO PRINTABLE ASCII
-std::vector<std::string> Driver::GetNumRandomModels(std::vector<std::string> model_variables, unsigned long num_random_models) {
+std::vector<std::string> Driver::GetNumRandomModels(std::vector<std::string> model_variables, unsigned long num_random_models, int min, int max) {
   std::vector<std::string> random_models;
   auto var = symbol_table_->get_variable(model_variables[0]);
   auto var_val = symbol_table_->get_value_at_scope(script_,var);
   auto var_val_auto = var_val->getStringAutomaton();
 
   auto projected_var_val_auto = var_val_auto->GetAutomatonForVariable(model_variables[0]);
-  auto regex_auto = Theory::StringAutomaton::MakeRegexAuto("[ -~]*");
+  auto regex_auto = Theory::StringAutomaton::MakeRegexAuto("[ -~]{"+std::to_string(min)+","+std::to_string(max)+"}");
   auto restricted_auto = projected_var_val_auto->Intersect(regex_auto);
 
   delete regex_auto;
   delete projected_var_val_auto;
+  
 
-  for(unsigned long i = 0; i < num_random_models; i++) {
-    std::string random_model = restricted_auto->GetAnAcceptingStringRandom();
-    random_models.push_back(random_model);
+  if(not restricted_auto->IsEmptyLanguage()) {
+    for(unsigned long i = 0; i < num_random_models; i++) {
+      std::string random_model = restricted_auto->GetAnAcceptingStringRandom();
+      random_models.push_back(random_model);
+    }
   }
+
   delete restricted_auto;
   return random_models;
 }
diff --git a/src/interface/Driver.h b/src/interface/Driver.h
index 55e2d83..4132671 100644
--- a/src/interface/Driver.h
+++ b/src/interface/Driver.h
@@ -105,7 +105,7 @@ class Driver {
   void reset();
 //	void solveAst();
   std::vector<std::string> GetSimpleRegexes(std::string re_var, int num_regexes = 1, int alpha = 0, int omega = 0);
-  std::vector<std::string> GetNumRandomModels(std::vector<std::string> model_variables, unsigned long num_random_models);
+  std::vector<std::string> GetNumRandomModels(std::vector<std::string> model_variables, unsigned long num_random_models, int min, int max);
 
   void set_option(const Option::Name option);
   void set_option(const Option::Name option, const int value);
diff --git a/src/main.cpp b/src/main.cpp
index f75e94e..ff947c7 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -75,6 +75,7 @@ int main(const int argc, const char **argv) {
   std::vector<std::string> model_variables;
   unsigned long num_random_models = 0;
   std::string random_models_file = "";
+  int minrange = 0, maxrange = 0;
 
   bool count_tuple = false;
   bool count_tuple_variables = false;
@@ -155,11 +156,13 @@ int main(const int argc, const char **argv) {
     	++i;
     } else if (argv[i] == std::string("--get-num-random-models")) {
       num_random_models = std::stoul(argv[i+1]);
-      std::string model_vars {argv[i+2]};
-      random_models_file = std::string({argv[i+3]});
+      minrange = std::stoi(argv[i+2]);
+      maxrange = std::stoi(argv[i+3]);
+      std::string model_vars {argv[i+4]};
+      random_models_file = std::string({argv[i+5]});
       model_variables = parse_count_vars(model_vars);
       driver.set_option(Vlab::Option::Name::GET_NUM_RANDOM_MODELS);
-      i += 3;
+      i += 5;
     } else if (argv[i] == std::string("--count-variable")) {
       std::string count_vars {argv[i+1]};
       count_variables = parse_count_vars(count_vars);
@@ -371,7 +374,7 @@ int main(const int argc, const char **argv) {
                    << "usage: --get-num-random-models <NUM_MODELS> <VARIABLE_NAME> <OUTFILE_NAME>";
       }
 
-      std::vector<std::string> random_models = driver.GetNumRandomModels(model_variables,num_random_models);
+      std::vector<std::string> random_models = driver.GetNumRandomModels(model_variables,num_random_models, minrange, maxrange);
 
       std::ofstream of;
       of.open(random_models_file.c_str(), std::ofstream::out | std::ofstream::trunc);