correct position to get ref

dgshell/benchmarks/nlbeam/beam.py

@@ -76,7 +76,7 @@ try:
     import linecache
     lineforce = linecache.getline('force41comp2.csv',7)
     linedisp = linecache.getline('NodalDisplacement2comp2.csv',3)
-    lineener = linecache.getline('energy.csv',8)
+    lineener = linecache.getline('energy.csv',7)
 except:
     print('Cannot get the results in the files')
     import os