diff --git a/sbysrc/sby_core.py b/sbysrc/sby_core.py
index ddc342f..7ea25fc 100644
--- a/sbysrc/sby_core.py
+++ b/sbysrc/sby_core.py
@@ -401,8 +401,8 @@ class SbyConfig:
                 continue
 
             if mode == "engines":
-                entries = line.split()
-                self.engines[engine_mode].append(entries)
+                args = line.strip().split()
+                self.engines[engine_mode].append(args)
                 continue
 
             if mode == "setup":
diff --git a/sbysrc/sby_mode_bmc.py b/sbysrc/sby_mode_bmc.py
index e8f4f71..e9afbc5 100644
--- a/sbysrc/sby_mode_bmc.py
+++ b/sbysrc/sby_mode_bmc.py
@@ -25,13 +25,19 @@ def run(task):
     task.handle_str_option("aigsmt", "yices")
 
     for engine_idx, engine_section in task.engine_list():
-        engine = engine_section[1][0]
-        engine_name = engine_section[0]
+        if isinstance(engine_section, list):
+            engine = engine_section
+            engine_name = None
+        else:
+            engine = engine_section[1][0]
+            engine_name = engine_section[0]
+
         if engine_name is None:
             engine_name = engine_idx
 
         assert len(engine) > 0
 
+
         task.log(f"""engine_{engine_name}: {" ".join(engine)}""")
         task.makedirs(f"{task.workdir}/engine_{engine_idx}")
 
diff --git a/sbysrc/sby_mode_cover.py b/sbysrc/sby_mode_cover.py
index f918247..f1e6ff5 100644
--- a/sbysrc/sby_mode_cover.py
+++ b/sbysrc/sby_mode_cover.py
@@ -24,8 +24,13 @@ def run(task):
     task.handle_int_option("append", 0)
 
     for engine_idx, engine_section in task.engine_list():
-        engine = engine_section[1][0]
-        engine_name = engine_section[0]
+        if isinstance(engine_section, list):
+            engine = engine_section
+            engine_name = None
+        else:
+            engine = engine_section[1][0]
+            engine_name = engine_section[0]
+
         if engine_name is None:
             engine_name = engine_idx
 
diff --git a/sbysrc/sby_mode_live.py b/sbysrc/sby_mode_live.py
index d713215..bdc772c 100644
--- a/sbysrc/sby_mode_live.py
+++ b/sbysrc/sby_mode_live.py
@@ -25,8 +25,13 @@ def run(task):
     task.status = "UNKNOWN"
 
     for engine_idx, engine_section in task.engine_list():
-        engine = engine_section[1][0]
-        engine_name = engine_section[0]
+        if isinstance(engine_section, list):
+            engine = engine_section
+            engine_name = None
+        else:
+            engine = engine_section[1][0]
+            engine_name = engine_section[0]
+
         if engine_name is None:
             engine_name = engine_idx
 
diff --git a/sbysrc/sby_mode_prove.py b/sbysrc/sby_mode_prove.py
index c4dcb0d..36f9929 100644
--- a/sbysrc/sby_mode_prove.py
+++ b/sbysrc/sby_mode_prove.py
@@ -32,8 +32,13 @@ def run(task):
     task.induction_procs = list()
 
     for engine_idx, engine_section in task.engine_list():
-        engine = engine_section[1][0]
-        engine_name = engine_section[0]
+        if isinstance(engine_section, list):
+            engine = engine_section
+            engine_name = None
+        else:
+            engine = engine_section[1][0]
+            engine_name = engine_section[0]
+
         if engine_name is None:
             engine_name = engine_idx