diff --git a/src/CodeCoverage.php b/src/CodeCoverage.php
index 67ba40359..b960ea234 100644
--- a/src/CodeCoverage.php
+++ b/src/CodeCoverage.php
@@ -138,6 +138,7 @@ final class CodeCoverage
      */
     public function __construct(Driver $driver = null, Filter $filter = null)
     {
+        //IVAN!!!
         if ($filter === null) {
             $filter = new Filter;
         }
@@ -377,6 +378,7 @@ public function merge(self $that): void
                 continue;
             }
 
+
             // we should compare the lines if any of two contains data
             $compareLineNumbers = \array_unique(
                 \array_merge(
@@ -385,6 +387,39 @@ public function merge(self $that): void
                 )
             );
 
+            $aaa_lines_orig = $this->data[$file];
+            $aaa_lines_second = $that->data[$file];
+
+            $dif1 = \array_keys(\array_diff_key($this->data[$file], $that->data[$file]));
+            $dif2 = \array_keys(\array_diff_key($that->data[$file], $this->data[$file]));
+//            if (!empty($dif1)) {
+//                foreach ($dif1 as $key) {
+//                    $this->data[$file][$key][] = 'Unknown';
+//                }
+//            }
+//            if (!empty($dif2)) {
+//                foreach ($dif2 as $key) {
+//                    if (empty($that->data[$file][$key])) {
+//                        $this->data[$file][$key][] = 'Unknown';
+//                    }
+//                }
+//            }
+
+            if (!empty($dif1)) {
+                foreach ($dif1 as $key) {
+                    if (empty($that->data[$file][$key]) && empty($that->data[$file][$key])) {
+                        unset($this->data[$file][$key]);
+                    }
+                }
+            }
+            if (!empty($dif2)) {
+                foreach ($dif2 as $key) {
+                    if (empty($that->data[$file][$key])) {
+                        unset($that->data[$file][$key]);
+                    }
+                }
+            }
+
             foreach ($compareLineNumbers as $line) {
                 $thatPriority = $this->getLinePriority($that->data[$file], $line);
                 $thisPriority = $this->getLinePriority($this->data[$file], $line);