diff --git a/main_package/classes/optimizers/constraint_based_optimizer.py b/main_package/classes/optimizers/constraint_based_optimizer.py
index 98b4039..4ee69d1 100644
--- a/main_package/classes/optimizers/constraint_based_optimizer.py
+++ b/main_package/classes/optimizers/constraint_based_optimizer.py
@@ -66,36 +66,17 @@ class ConstraintBasedOptimizer(Optimizer):
         child_states_numb = self.structure_estimator.sample_path.structure.get_states_number(self.node_id)
         b = 0
         while b < len(u):
-            #for parent_id in u:
             parent_indx = 0
-            list_parent= copy.deepcopy(u)
-            for possible_parent in list_parent:
+            while parent_indx < len(u):
                 removed = False
-                #if not list(self.structure_estimator.generate_possible_sub_sets_of_size(u, b, u[parent_indx])):
-                    #break
-                S = self.structure_estimator.generate_possible_sub_sets_of_size(u, b, possible_parent)
-                #print("U Set", u)
-                #print("S", S)
-                test_parent = possible_parent
-                #print("Test Parent", test_parent)
+                S = self.structure_estimator.generate_possible_sub_sets_of_size(u, b, u[parent_indx])
+                test_parent = u[parent_indx]
                 for parents_set in S:
-                    #print("Parent Set", parents_set)
-                    #print("Test Parent", test_parent)
                     if self.structure_estimator.complete_test(test_parent, self.node_id, parents_set, child_states_numb, self.tot_vars_count):
-                        #print("Removing EDGE:", test_parent, self.node_id)
                         graph.remove_edges([(test_parent, self.node_id)])
-                        other_nodes.remove(test_parent)
-                        print(f"TEST PARENT: {test_parent}")   
-                        try:
-                           u.remove(test_parent)
-                        except:
-                            print(f"u: {u}")  
-                            print(f"utest_parent: {test_parent}")                    
-                        
+                        u.remove(test_parent)
                         removed = True
                         break
-                    #else:
-                        #parent_indx += 1
                 if not removed:
                     parent_indx += 1
             b += 1
diff --git a/main_package/classes/structure_graph/sample_path.py b/main_package/classes/structure_graph/sample_path.py
index c2d470b..0c4a287 100644
--- a/main_package/classes/structure_graph/sample_path.py
+++ b/main_package/classes/structure_graph/sample_path.py
@@ -45,11 +45,11 @@ class SamplePath(asam.AbstractSamplePath):
         self.importer.import_data()
 
         #TODO: VALUTARE PARAMETRO PER DATA AUGMENTATION
-        trajects_samples =  pd.concat([self.importer.concatenated_samples,
-                                    self.importer.concatenated_samples])
+        #trajects_samples =  pd.concat([self.importer.concatenated_samples,
+        #                            self.importer.concatenated_samples])
 
         self._trajectories = \
-            tr.Trajectory(self.importer.build_list_of_samples_array(trajects_samples),
+            tr.Trajectory(self.importer.build_list_of_samples_array(self.importer.concatenated_samples),
                           len(self.importer.sorter) + 1)
         #self.trajectories.append(trajectory)
         self.importer.clear_concatenated_frame()
diff --git a/main_package/tests/estimators/test_structure_constraint_based_estimator.py b/main_package/tests/estimators/test_structure_constraint_based_estimator.py
index 1bf1bdc..57d51f1 100644
--- a/main_package/tests/estimators/test_structure_constraint_based_estimator.py
+++ b/main_package/tests/estimators/test_structure_constraint_based_estimator.py
@@ -22,7 +22,7 @@ class TestStructureConstraintBasedEstimator(unittest.TestCase):
     @classmethod
     def setUpClass(cls):
         #cls.read_files = glob.glob(os.path.join('../../data', "*.json"))
-        cls.importer = ji.JsonImporter("../../data/networks_and_trajectories_ternary_data_01_6.json", 'samples', 'dyn.str', 'variables', 'Time', 'Name')
+        cls.importer = ji.JsonImporter("../../data/networks_and_trajectories_ternary_data_15.json", 'samples', 'dyn.str', 'variables', 'Time', 'Name')
         cls.s1 = sp.SamplePath(cls.importer)
         cls.s1.build_trajectories()
         cls.s1.build_structure()
@@ -32,7 +32,7 @@ class TestStructureConstraintBasedEstimator(unittest.TestCase):
         true_edges = set(map(tuple, true_edges))
 
         se1 = se.StructureConstraintBasedEstimator(self.s1,0.1,0.1)
-        edges = se1.estimate_structure(disable_multiprocessing=True)
+        edges = se1.estimate_structure(disable_multiprocessing=False)
         
 
         self.assertEqual(edges, true_edges)