Simulation exception htcfile

wetb/hawc2/htc_file.py

@@ -414,8 +414,11 @@ class HTCFile(HTCContents, HTCDefaults, HTCExtensions):
             log = stderr
 
         if errorcode or 'Elapsed time' not in log:
-            raise Exception("\nstdout:\n%s\n--------------\nstderr:\n%s\n--------------\ncmd:\n%s" %
-                            (str(stdout), str(stderr), cmd))
+            log_lines = log.split("\n")
+            i = [i for i, l in enumerate(log_lines) if 'error' in l.lower()][0]
+            error_log = "\n".join(log_lines[i - 3:i + 3])
+            raise Exception("\nstdout:\n%s\n--------------\nstderr:\n%s\n--------------\nlog:\n%s\n--------------\ncmd:\n%s" %
+                            (str(stdout), str(stderr), error_log, cmd))
         return str(stdout) + str(stderr), log
 
     def deltat(self):