Bigfix in relaoding contracts

rt-key/src/main/java/edu/kit/iti/formal/psdbg/interpreter/KeYProofFacade.java

@@ -8,6 +8,7 @@ import de.uka.ilkd.key.java.Services;
 import de.uka.ilkd.key.proof.Goal;
 import de.uka.ilkd.key.proof.Proof;
 import de.uka.ilkd.key.proof.init.ProofInputException;
+import de.uka.ilkd.key.proof.init.ProofOblInput;
 import de.uka.ilkd.key.proof.io.ProblemLoaderException;
 import de.uka.ilkd.key.speclang.Contract;
 import edu.kit.iti.formal.psdbg.interpreter.data.GoalNode;
@@ -91,8 +92,23 @@ public class KeYProofFacade {
      */
     public void reload(File problemFile) throws ProofInputException, ProblemLoaderException {
         if (contract.get() != null) {// reinstante the contract
-            setProof(getEnvironment().createProof(
-                    contract.get().getProofObl(getEnvironment().getServices())));
+            pma = KeYApi.loadFromKeyFile(problemFile);
+            List<Contract> contracts = pma.getProofContracts();
+            contracts.forEach(contract1 -> {
+                if(contract.get().getName().equals(contract1.getName())){
+                  contractProperty().set(contract1);
+                }
+            });
+
+            if(contract.get() != null){
+                try{
+                    activateContract(contract.get());
+                }catch (ProofInputException pie){
+                    throw new ProofInputException("Contract not reloadable.", pie.getCause());
+                }
+            }
+            /*setProof(getEnvironment().createProof(
+                    contract.get().getProofObl(getEnvironment().getServices())));*/
         } else {
             setProof(KeYApi.loadFromKeyFile(problemFile).getLoadedProof().getProof());
         }

ui/src/main/java/edu/kit/iti/formal/psdbg/gui/controller/DebuggerMain.java

@@ -545,10 +545,11 @@ public class DebuggerMain implements Initializable {
         //save old information and refresh models
         statusBar.publishMessage("Reloading...");
         File lastLoaded;
+        Contract chosen = null;
         if (model.getKeyFile() != null) {
             lastLoaded = model.getKeyFile();
         } else {
-            Contract chosen = model.getChosenContract();
+            chosen = model.getChosenContract();
             lastLoaded = model.getJavaFile();
         }
         //model.reload();
@@ -562,8 +563,11 @@ public class DebuggerMain implements Initializable {
         iModel.clearHighlightLines();
         iModel.getGoals().clear();
         iModel.setSelectedGoalNodeToShow(null);
-
+        if(chosen != null) {
+            FACADE.contractProperty().set(chosen);
+        }
         try {
+
             FACADE.reload(lastLoaded);
             if (iModel.getGoals().size() > 0) {
                 iModel.setSelectedGoalNodeToShow(iModel.getGoals().get(0));