diff --git a/SeqRuler.jar b/SeqRuler.jar
index 3541604..2f0bca9 100644
Binary files a/SeqRuler.jar and b/SeqRuler.jar differ
diff --git a/modules/gui-app/src/main/java/SNP/SNP.java b/modules/gui-app/src/main/java/SNP/SNP.java
index 1008bba..97a9004 100644
--- a/modules/gui-app/src/main/java/SNP/SNP.java
+++ b/modules/gui-app/src/main/java/SNP/SNP.java
@@ -98,7 +98,7 @@ public void snp(ArrayList<Seq> seqs) {
 
     public void snp_sequential(ArrayList<Seq> seqs) {
         //sequential version
-        long pairs_count = (seqs.size() * (seqs.size() - 1)) / 2;
+        long pairs_count = ((long) seqs.size() * (seqs.size() - 1)) / 2;
         long current_pair = 0;
         long startTime = System.nanoTime(), estimatedTime;
 
diff --git a/modules/gui-app/src/main/java/TN93/TN93.java b/modules/gui-app/src/main/java/TN93/TN93.java
index 433d7de..c5cbd3d 100644
--- a/modules/gui-app/src/main/java/TN93/TN93.java
+++ b/modules/gui-app/src/main/java/TN93/TN93.java
@@ -199,7 +199,7 @@ public void tn93_parallel(ArrayList<Seq> seqs){
         }
             
 
-        long total_pairs_to_compute = (seqs.size() * seqs.size() - seqs.size())/2;
+        long total_pairs_to_compute = ((long) seqs.size() * seqs.size() - seqs.size())/2;
         long current_pair = 0;
         long startTime = System.nanoTime(), estimatedTime;