diff --git a/src/Main.java b/src/Main.java
index f94701304eef904fb3ead60718b3fa150fdde1bb..7ed6efa2fdff8744ba0862b8612072db8942dbe0 100644
--- a/src/Main.java
+++ b/src/Main.java
@@ -43,7 +43,7 @@ public class Main {
         Scanner readFile = new Scanner(System.in);
         System.out.println("Entrez le nom du fichier à tester, il doit se situer dans le dossier src.");
         //String nameFile = readFile.nextLine();
-        String nameFile = "network1.txt";
+        String nameFile = "inputNonAdmissible.txt";
         //String nameFile = "inputNonAdmissible.txt";
         File f = new File("src/" + nameFile);
         Scanner sc = new Scanner(f);
diff --git a/src/Simplex.java b/src/Simplex.java
index aa2a7e561193d4c32d1f94e9585f6ba0eb602778..7d0dc310453c1e137f6f45cdfc67ce936e33b9de 100644
--- a/src/Simplex.java
+++ b/src/Simplex.java
@@ -118,7 +118,7 @@ public class Simplex {
     }
 
     int getFirstNeg(Matrix mat) {
-        for (int j = 0; j < mat.getY(); j++) {
+        for (int j = 0; j < mat.getY() - 1; j++) {
             if (signe(mat.getData(mat.getX() - 1, j))) return j;
         }
         return -1;
@@ -146,9 +146,7 @@ public class Simplex {
         for (int j = 0; j < mat.getY(); j++)
             if (signe(mat.getData(mat.getX() - 1, j))) {
                 has_neg = true;
-                if (has_neg) {
-                    break;
-                }
+                break;
             }
         if (has_neg)
             pivot(mat);