diff --git a/bin/deepstate/common.py b/bin/deepstate/common.py
index 1ee596b..c649249 100644
--- a/bin/deepstate/common.py
+++ b/bin/deepstate/common.py
@@ -137,8 +137,12 @@ class DeepState(object):
 
     parser.add_argument(
         "--verbosity", default=1, type=int,
-        help="Verbosity level.")
+        help="Verbosity level for symbolic execution tool.")
 
+    parser.add_argument(
+        "--log_level", default=2, type=int,
+        help="Log level (DeepState logging).")
+    
     parser.add_argument(
         "binary", type=str, help="Path to the test binary to run.")
 
@@ -240,7 +244,7 @@ class DeepState(object):
       self.context['stream_{}'.format(level)] = []
 
     self.context['info'] = info
-    self.log_message(LOG_LEVEL_INFO, "Running {} from {}({})".format(
+    self.log_message(LOG_LEVEL_TRACE, "Running {} from {}({})".format(
         info.name, info.file_name, info.line_number))
 
     apis = self.context['apis']
@@ -385,7 +389,7 @@ class DeepState(object):
     # Print out the first few input bytes to be helpful.
     lots_of_bytes = len(input_bytes) > 20 and " ..." or ""
     bytes_to_show = min(20, len(input_bytes))
-    LOGGER.info("Input: {}{}".format(
+    LOGGER.trace("Input: {}{}".format(
         " ".join("{:02x}".format(b) for b in input_bytes[:bytes_to_show]),
         lots_of_bytes))
 
@@ -494,7 +498,7 @@ class DeepState(object):
       self.api_fail()
     else:
       info = self.context['info']
-      self.log_message(LOG_LEVEL_INFO, "Passed: {}".format(info.name))
+      self.log_message(LOG_LEVEL_TRACE, "Passed: {}".format(info.name))
       self.pass_test()
 
   def api_crash(self):