Updating so that NuSMV class is no longer static

src/mohawk/refine/RolesAbsRefine.java

@@ -17,6 +17,7 @@ import mohawk.math.CalculateDiameter;
 import mohawk.output.WriteNuSMV;
 import mohawk.output.WriteRBACSpec;
 import mohawk.rbac.RBACInstance;
+import mohawk.singleton.MohawkSettings;
 
 /**
  * @author kjayaram
@@ -105,6 +106,7 @@ public class RolesAbsRefine {
 
         // NuSMV bmc
         Boolean result;
+        NuSMV runNuSMV = new NuSMV(MohawkSettings.getInstance().getNuSMV_filepath());
         if (mode == NuSMVMode.BMC) {
             // CalculateDiameter diameter = new CalculateDiameter(); // NEVER USED
             int bound = CalculateDiameter.GetDiameter(curInstance);
@@ -112,20 +114,20 @@ public class RolesAbsRefine {
                     curInstance.getNumRoles(), bound));
 
             if (skipSMVFile) {
-                result = NuSMV.BMC(bound, nusmv.getNuSMVCode());
+                result = runNuSMV.BMC(bound, nusmv.getNuSMVCode());
             } else {
-                result = NuSMV.BMCFile(bound, nusmv.getFilename());
+                result = runNuSMV.BMCFile(bound, nusmv.getFilename());
             }
         } else {
 
             if (skipSMVFile) {
-                result = NuSMV.SMC(nusmv.getNuSMVCode());
+                result = runNuSMV.SMC(nusmv.getNuSMVCode());
             } else {
-                result = NuSMV.SMCFile(nusmv.getFilename());
+                result = runNuSMV.SMCFile(nusmv.getFilename());
             }
         }
 
-        returnValue = NuSMV.execProcess.exitValue();
+        returnValue = runNuSMV.execProcess.exitValue();
 
         return result;
     }

src/mohawk/singleton/MohawkSettings.java

@@ -2,7 +2,6 @@ package mohawk.singleton;
 
 import java.util.logging.Level;
 
-import mohawk.global.nusmv.NuSMV;
 import mohawk.global.results.MohawkResults;
 import mohawk.global.results.TestingResult;
 import mohawk.global.timing.MohawkTiming;
@@ -30,7 +29,6 @@ public class MohawkSettings {
 
     public void setNuSMV_filepath(String nuSMV_filepath) {
         NuSMV_filepath = nuSMV_filepath;
-        NuSMV.NuSMVProcessName = nuSMV_filepath;
     }
 
     // Helpers