diff --git a/testsou/cpymat.cpp b/testsou/cpymat.cpp
index 55a9d04c..aac38391 100644
--- a/testsou/cpymat.cpp
+++ b/testsou/cpymat.cpp
@@ -21,7 +21,7 @@ int main()
   auto wallclock1 = chrono::high_resolution_clock::now();
 
   vector<double> ym;
-  while(concore.simtime<Nsim){
+  while(concore.simtime<concore.maxtime){
     while (concore.unchanged()){
       ym = concore.read(1,"ym",init_simtime_ym);
     }
diff --git a/testsou/pmpymat.cpp b/testsou/pmpymat.cpp
index 63470ff9..24c77dc6 100644
--- a/testsou/pmpymat.cpp
+++ b/testsou/pmpymat.cpp
@@ -10,13 +10,12 @@ int main()
 {
   Concore concore;
   concore.delay = 0.01;
-  int Nsim = 100;
   string init_simtime_u = "[0.0,0.0,0.0]";
   string init_simtime_ym = "[0.0,0.0,0.0]";
 
   vector<double> ym = concore.initval(init_simtime_ym);
   vector<double> u;
-  while(concore.simtime<Nsim){
+  while(concore.simtime<concore.maxtime){
     while (concore.unchanged()){
       u = concore.read(1,"u",init_simtime_u);
     }
diff --git a/testsou/powermeter.cpp b/testsou/powermeter.cpp
index 7e6e6ec2..134bd8e6 100644
--- a/testsou/powermeter.cpp
+++ b/testsou/powermeter.cpp
@@ -12,14 +12,13 @@ int main(){
     Concore concore2;
     concore.delay = 0.07;
     concore2.delay = 0.07;
-    int Nsim = 100;
     string init_simtime_u = "[0.0,0.0,0.0]";
     string init_simtime_ym = "[0.0,0.0,0.0]";
     int energy = 0;
 
     vector<double> ym = concore.initval(init_simtime_ym);
     vector<double> u;
-    while(concore.simtime<Nsim){
+    while(concore.simtime<concore.maxtime){
         while (concore.unchanged()){
             u = concore.read(concore.iport["VC"],"u",init_simtime_u);
         }