diff --git a/config/config.exs b/config/config.exs
index eb9ad71..c5c2b5b 100644
--- a/config/config.exs
+++ b/config/config.exs
@@ -4,6 +4,7 @@ import Config
 
 config :logger, :default_formatter,
     format: "$date $time [$level] $metadata $message\n",
+    colors: [enabled: false],
     metadata: [:mfa]
 
 import_config "#{config_env()}.exs"
diff --git a/lib/csys/program.ex b/lib/csys/program.ex
index 04e2e67..5afae88 100644
--- a/lib/csys/program.ex
+++ b/lib/csys/program.ex
@@ -78,7 +78,7 @@ alias Scopes.CSys
     data = Shape.data(msg)
     state = CSys.state(scope)
     value_n = state.value + data.value
-    Logger.info([data: data.value, state: state.value, threshold: state.threshold])
+    Logger.info data: data.value, state: state.value, threshold: state.threshold
     if value_n >= state.threshold do
       msg = Shape.create(Shape.head(msg), data: %{data | value: value_n})
       CSys.forward(msg, scope) || CSys.notify(msg, scope)
@@ -144,4 +144,12 @@ alias Scopes.CSys
     end
   ]
   end
+
+  def init_recursive_1() do [
+    fn [zero] -> 
+      CSys.send_message(zero, ~w(csys connect)a, %{target: zero, op: negate()}) 
+      CSys.send_message(zero, ~w(csys create succ)a, %{name: ~w(csys e01 001)a})
+    end
+  ]
+  end
 end
diff --git a/test/csys_test.exs b/test/csys_test.exs
index 1546a5d..e58eba6 100644
--- a/test/csys_test.exs
+++ b/test/csys_test.exs
@@ -16,8 +16,8 @@ defmodule Scopes.CSysTest do
     Shape.data(receive_select(head))
   end
 
-  describe "basic:" do
-    test "minimal-neural-net" do
+  describe "basic-program:" do
+    test "minimal-b1" do
       _env = Environ.setup(Program.prepare_basic(), Program.init_seq_b1())
       zero = receive_data(~w(csys created)a).new
       CSys.send_value(zero, 0)
@@ -25,7 +25,7 @@ defmodule Scopes.CSysTest do
       one = receive_data(~w(csys created)a).new
       _two = receive_data(~w(csys created)a).new
       three = receive_data(~w(csys created)a).new
-      Process.sleep(50)
+      Process.sleep(10)
       CSys.send_value(one, 1)
       assert receive_data().value == 1
       #assert receive_data().value in [-1, 1]
@@ -34,22 +34,12 @@ defmodule Scopes.CSysTest do
       assert receive_data().value in [2, 3]
       refute_received msg, "unhandled message(s): #{inspect(msg)}"
     end
-  end
 
-  def init_recursive_1() do [
-    fn [zero] -> 
-      CSys.send_message(zero, ~w(csys connect)a, %{target: zero, op: Program.negate()}) 
-      CSys.send_message(zero, ~w(csys create succ)a)
-    end
-  ]
-  end
-
-  describe "recursive:" do
-    test "zero + effector" do
-      _env = Environ.setup(Program.prepare_basic(), init_recursive_1())
+    test "recursive-1" do
+      _env = Environ.setup(Program.prepare_basic(), Program.init_recursive_1())
       zero = receive_data(~w(csys created)a).new
       _eff = receive_data(~w(csys created)a).new
-      Process.sleep(50)
+      Process.sleep(10)
       CSys.send_value(zero, 42)
       assert receive_data().value == 42
       refute_received msg, "unhandled message(s): #{inspect(msg)}"