Another optimization of minimization

modeling/AVATAR/MicroWaveOven_SafetySecurity_fullMethodo.xml

src/main/java/ui/graph/AUTBlock.java

src/main/java/ui/graph/AUTGraph.java

src/main/java/ui/graph/AUTPartition.java

src/main/java/ui/graph/AUTSplitter.java