diff --git a/client_example/06_softmax/softmax4d.cpp b/client_example/06_softmax/softmax4d.cpp
index aef5624cad..401b161d11 100644
--- a/client_example/06_softmax/softmax4d.cpp
+++ b/client_example/06_softmax/softmax4d.cpp
@@ -6,6 +6,7 @@
 #include <iomanip>
 #include <iostream>
 #include <vector>
+#include <stdexcept>
 
 #include "ck/ck.hpp"
 #include "ck/tensor_operation/gpu/device/tensor_layout.hpp"
@@ -60,6 +61,24 @@ int main(int argc, char* argv[])
                                                                  PassThrough,
                                                                  Rank,
                                                                  NumReduceDim>;
+
+    const auto g_op_ptr = ck::tensor_operation::device::instance::DeviceOperationInstanceFactory<
+        DeviceOp>::GetGenericInstance();
+
+    auto g_op_argument_ptr = g_op_ptr->MakeArgumentPointer(in_lengths,
+                                                           in_strides,
+                                                           reduce_dims,
+                                                           alpha,
+                                                           beta,
+                                                           in.GetDeviceBuffer(),
+                                                           out.GetDeviceBuffer(),
+                                                           PassThrough{},
+                                                           PassThrough{});
+
+    if(!g_op_ptr->IsSupportedArgument(g_op_argument_ptr.get()))
+        throw std::runtime_error(
+            "Generic instance should be suitable for various input lengths/strides");
+
     // get device op instances
     const auto op_ptrs = ck::tensor_operation::device::instance::DeviceOperationInstanceFactory<
         DeviceOp>::GetInstances();
@@ -122,6 +141,7 @@ int main(int argc, char* argv[])
               << best_op_name << std::endl;
 
     // run the best intance
+    if(found)
     {
         auto& op_ptr = op_ptrs[best_op_id];
         std::cout << "Run the best instance without timing: " << op_ptr->GetTypeString()