Fixed running in an infinite loop when computing LRA on markov automata with relative precision.

src/storm/modelchecker/csl/helper/SparseMarkovAutomatonCslHelper.cpp

@@ -1047,7 +1047,7 @@ namespace storm {
                     }
 
                     // Check for convergence
-                    if ((maxDiff - minDiff) <= (relative ? (precision * minDiff) : precision)) {
+                    if ((maxDiff - minDiff) <= (relative ? (precision * (v.front() + minDiff)) : precision)) {
                         break;
                     }