diff --git a/DAS/observer.py b/DAS/observer.py
index 235ed60..beba4ad 100644
--- a/DAS/observer.py
+++ b/DAS/observer.py
@@ -46,16 +46,18 @@ class Observer:
         arrived = 0
         expected = 0
         ready = 0
+        validatedall = 0
         validated = 0
         for val in validators:
             if val.amIproposer == 0:
-                (a, e) = val.checkStatus()
+                (a, e, v) = val.checkStatus()
                 arrived += a
                 expected += e
                 if a == e:
                     ready += 1
-                    validated += val.vpn
-        return (arrived, expected, ready, validated)
+                    validatedall += val.vpn
+                validated += v
+        return (arrived, expected, ready, validatedall, validated)
 
     def getProgress(self, validators):
             """Calculate current simulation progress with different metrics.
@@ -69,14 +71,15 @@ class Observer:
             but counts a validator only if its support node's all validators see all interesting segments
             TODO: add real per validator progress counter
             """
-            arrived, expected, ready, validated = self.checkStatus(validators)
+            arrived, expected, ready, validatedall, validated = self.checkStatus(validators)
             missingSamples = expected - arrived
             sampleProgress = arrived / expected
             nodeProgress = ready / (len(validators)-1)
             validatorCnt = sum([v.vpn for v in validators[1:]])
+            validatorAllProgress = validatedall / validatorCnt
             validatorProgress = validated / validatorCnt
 
-            return missingSamples, sampleProgress, nodeProgress, validatorProgress
+            return missingSamples, sampleProgress, nodeProgress, validatorAllProgress, validatorProgress
 
     def getTrafficStats(self, validators):
             """Summary statistics of traffic measurements in a timestep."""
diff --git a/DAS/simulator.py b/DAS/simulator.py
index e3d7be4..c2a099f 100644
--- a/DAS/simulator.py
+++ b/DAS/simulator.py
@@ -167,7 +167,7 @@ class Simulator:
     def run(self):
         """It runs the main simulation until the block is available or it gets stucked."""
         self.glob.checkRowsColumns(self.validators)
-        arrived, expected, ready, validated = self.glob.checkStatus(self.validators)
+        arrived, expected, ready, validatedall, validated = self.glob.checkStatus(self.validators)
         missingSamples = expected - arrived
         missingVector = []
         progressVector = []
@@ -199,9 +199,9 @@ class Simulator:
                 self.validators[i].updateStats()
             trafficStatsVector.append(trafficStats)
 
-            missingSamples, sampleProgress, nodeProgress, validatorProgress = self.glob.getProgress(self.validators)
-            self.logger.debug("step %d, arrived %0.02f %%, ready %0.02f %%, validated %0.02f %%"
-                              % (steps, sampleProgress*100, nodeProgress*100, validatorProgress*100), extra=self.format)
+            missingSamples, sampleProgress, nodeProgress, validatorAllProgress, validatorProgress = self.glob.getProgress(self.validators)
+            self.logger.info("step %d, arrived %0.02f %%, ready %0.02f %%, validatedall %0.02f %%, , validated %0.02f %%"
+                              % (steps, sampleProgress*100, nodeProgress*100, validatorAllProgress*100, validatorProgress*100), extra=self.format)
 
             cnS = "samples received"
             cnN = "nodes ready"
diff --git a/DAS/validator.py b/DAS/validator.py
index e8abba0..bbc7cba 100644
--- a/DAS/validator.py
+++ b/DAS/validator.py
@@ -69,8 +69,13 @@ class Validator:
                 #    random.seed(self.ID)
                 self.nodeClass = 1 if (self.ID <= shape.numberNodes * shape.class1ratio) else 2
                 self.vpn = self.shape.vpn1 if (self.nodeClass == 1) else self.shape.vpn2
-                self.rowIDs = rows if rows else unionOfSamples(range(self.shape.blockSize), self.shape.chi, self.vpn)
-                self.columnIDs = columns if columns else unionOfSamples(range(self.shape.blockSize), self.shape.chi, self.vpn)
+                self.vRowIDs = []
+                self.vColumnIDs = []
+                for i in range(self.vpn):
+                    self.vRowIDs.append(set(rows[i*self.shape.chi:(i+1)*self.shape.chi]) if rows else set(random.sample(range(self.shape.blockSize), self.shape.chi)))
+                    self.vColumnIDs.append(set(columns[i*self.shape.chi:(i+1)*self.shape.chi]) if columns else set(random.sample(range(self.shape.blockSize), self.shape.chi)))
+                self.rowIDs = set.union(*self.vRowIDs)
+                self.columnIDs = set.union(*self.vColumnIDs)
         self.rowNeighbors = collections.defaultdict(dict)
         self.columnNeighbors = collections.defaultdict(dict)
 
@@ -469,16 +474,27 @@ class Validator:
 
     def checkStatus(self):
         """It checks how many expected/arrived samples are for each assigned row/column."""
-        arrived = 0
-        expected = 0
-        for id in self.columnIDs:
-            line = self.getColumn(id)
-            arrived += line.count(1)
-            expected += len(line)
-        for id in self.rowIDs:
-            line = self.getRow(id)
-            arrived += line.count(1)
-            expected += len(line)
+
+        def checkStatus(columnIDs, rowIDs):
+            arrived = 0
+            expected = 0
+            for id in columnIDs:
+                line = self.getColumn(id)
+                arrived += line.count(1)
+                expected += len(line)
+            for id in rowIDs:
+                line = self.getRow(id)
+                arrived += line.count(1)
+                expected += len(line)
+            return arrived, expected
+
+        arrived, expected = checkStatus(self.columnIDs, self.rowIDs)
         self.logger.debug("status: %d / %d", arrived, expected, extra=self.format)
 
-        return (arrived, expected)
+        validated = 0
+        for i in range(self.vpn):
+            a, e = checkStatus(self.vColumnIDs[i], self.vRowIDs[i])
+            if a == e:
+                validated+=1
+
+        return arrived, expected, validated