diff --git a/afl/src/events/llmp.rs b/afl/src/events/llmp.rs
index 153db7e7cb..dc2b23c90f 100644
--- a/afl/src/events/llmp.rs
+++ b/afl/src/events/llmp.rs
@@ -21,6 +21,7 @@ use crate::{
     feedbacks::FeedbacksTuple,
     inputs::Input,
     state::State,
+    executors::ExitKind,
     stats::Stats,
     utils::Rand,
     AflError,
@@ -278,7 +279,8 @@ where
                 #[cfg(feature = "std")]
                 println!("Received new Testcase");
                 let observers = postcard::from_bytes(&observers_buf)?;
-                let interestingness = state.is_interesting(&input, &observers)?;
+                // TODO include ExitKind in NewTestcase
+                let interestingness = state.is_interesting(&input, &observers, ExitKind::Ok)?;
                 state.add_if_interesting(input, interestingness)?;
                 Ok(())
             }
diff --git a/afl/src/executors/mod.rs b/afl/src/executors/mod.rs
index 5335d89648..da0e2b94e7 100644
--- a/afl/src/executors/mod.rs
+++ b/afl/src/executors/mod.rs
@@ -20,6 +20,7 @@ use crate::{
 };
 
 /// How an execution finished.
+#[derive(Debug, Clone)]
 pub enum ExitKind {
     Ok,
     Crash,
diff --git a/afl/src/feedbacks/mod.rs b/afl/src/feedbacks/mod.rs
index 95428e813e..8d3651ae9c 100644
--- a/afl/src/feedbacks/mod.rs
+++ b/afl/src/feedbacks/mod.rs
@@ -11,6 +11,7 @@ use serde::{Deserialize, Serialize};
 
 use crate::{
     bolts::tuples::{Named, TupleList},
+    executors::ExitKind,
     corpus::Testcase,
     inputs::Input,
     observers::{MapObserver, Observer, ObserversTuple},
@@ -35,6 +36,7 @@ where
         &mut self,
         input: &I,
         observers: &OT,
+        exit_kind: ExitKind,
     ) -> Result<u32, AflError>;
 
     /// Append to the testcase the generated metadata in case of a new corpus item
@@ -83,6 +85,7 @@ where
         &mut self,
         input: &I,
         observers: &OT,
+        exit_kind: ExitKind,
     ) -> Result<u32, AflError>;
 
     /// Write metadata for this testcase
@@ -103,7 +106,7 @@ where
     I: Input,
 {
     #[inline]
-    fn is_interesting_all<OT: ObserversTuple>(&mut self, _: &I, _: &OT) -> Result<u32, AflError> {
+    fn is_interesting_all<OT: ObserversTuple>(&mut self, _: &I, _: &OT, _: ExitKind,) -> Result<u32, AflError> {
         Ok(0)
     }
 
@@ -134,9 +137,10 @@ where
         &mut self,
         input: &I,
         observers: &OT,
+        exit_kind: ExitKind,
     ) -> Result<u32, AflError> {
-        Ok(self.0.is_interesting(input, observers)?
-            + self.1.is_interesting_all(input, observers)?)
+        Ok(self.0.is_interesting(input, observers, exit_kind.clone())?
+            + self.1.is_interesting_all(input, observers, exit_kind)?)
     }
 
     fn append_metadata_all(&mut self, testcase: &mut Testcase<I>) -> Result<(), AflError> {
@@ -243,6 +247,7 @@ where
         &mut self,
         _input: &I,
         observers: &OT,
+        _exit_kind: ExitKind,
     ) -> Result<u32, AflError> {
         let mut interesting = 0;
         // TODO optimize
diff --git a/afl/src/stages/mutational.rs b/afl/src/stages/mutational.rs
index f4f737bad1..f18421f3a8 100644
--- a/afl/src/stages/mutational.rs
+++ b/afl/src/stages/mutational.rs
@@ -81,7 +81,6 @@ where
             if fitness > 0 {
                 let observers_buf = manager.serialize_observers(observers)?;
 
-                // TODO decouple events manager and engine
                 manager.fire(
                     state,
                     Event::NewTestcase {
diff --git a/afl/src/state/mod.rs b/afl/src/state/mod.rs
index 4472177014..c32d6b9836 100644
--- a/afl/src/state/mod.rs
+++ b/afl/src/state/mod.rs
@@ -12,7 +12,7 @@ use crate::{
     bolts::serdeany::{SerdeAny, SerdeAnyMap},
     corpus::{Corpus, Testcase},
     events::{Event, EventManager, LogSeverity},
-    executors::{Executor, HasObservers},
+    executors::{Executor, HasObservers, ExitKind},
     feedbacks::FeedbacksTuple,
     generators::Generator,
     inputs::Input,
@@ -248,11 +248,11 @@ where
 
     // TODO move some of these, like evaluate_input, to FuzzingEngine
     #[inline]
-    pub fn is_interesting<OT>(&mut self, input: &I, observers: &OT) -> Result<u32, AflError>
+    pub fn is_interesting<OT>(&mut self, input: &I, observers: &OT, exit_kind: ExitKind) -> Result<u32, AflError>
     where
         OT: ObserversTuple,
     {
-        Ok(self.feedbacks_mut().is_interesting_all(input, observers)?)
+        Ok(self.feedbacks_mut().is_interesting_all(input, observers, exit_kind)?)
     }
 
     /// Runs the input and triggers observers and feedback
@@ -271,14 +271,14 @@ where
         executor.pre_exec_observers()?;
 
         executor.pre_exec(self, event_mgr, input)?;
-        executor.run_target(input)?;
+        let exit_kind = executor.run_target(input)?;
         executor.post_exec(&self, event_mgr, input)?;
 
         self.set_executions(self.executions() + 1);
         executor.post_exec_observers()?;
 
         let observers = executor.observers();
-        let fitness = self.feedbacks_mut().is_interesting_all(&input, observers)?;
+        let fitness = self.feedbacks_mut().is_interesting_all(&input, observers, exit_kind)?;
         Ok(fitness)
     }