From e42d32775f94f3162a7d605ddc3273e69be437ff Mon Sep 17 00:00:00 2001
From: chriseth <c@ethdev.com>
Date: Fri, 16 Sep 2016 12:00:53 +0200
Subject: [PATCH] Perform bounds check in case call fails.

---
 src/helpers/traceHelper.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/helpers/traceHelper.js b/src/helpers/traceHelper.js
index 73424f64dd..4243cbd17a 100644
--- a/src/helpers/traceHelper.js
+++ b/src/helpers/traceHelper.js
@@ -37,7 +37,7 @@ module.exports = {
     // if stack empty => this is not a precompiled contract
     var step = trace[index]
     if (this.isCallInstruction(step)) {
-      return trace[index + 1].stack.length !== 0
+      return index + 1 < trace.length && trace[index + 1].stack.length !== 0
     } else {
       return false
     }