[SalesForce] test class for batch apex not covering execute method

I have written a batch class for cloning the opportunity and updating the stage field. Class is working fine. But test class is not covering the execute method. Logically I felt the test class is correct. Please provide any suggestions. Thanks in advance.

Following is the code for cloning to be tested-

global class UpdateOpportunity implements Database.Batchable<sObject>{

string query;

global Database.querylocator start(Database.BatchableContext BC){

String oppRecordTypeID = Schema.getGlobalDescribe().get('Opportunity').getDescribe().getRecordTypeInfosByName().get('Small Group').getRecordTypeId();

Query = 'Select id, name,StageName,RecordTypeId,Type,Description,CloseDate,Amount,Reason_for_loss__c,Renewal_date__c From Opportunity where StageName = \'Closed Won\' AND RecordTypeId = :oppRecordTypeID AND Renewal_date__c != null ';
return Database.getQueryLocator(query);
}


global void execute(Database.BatchableContext BC, List<Opportunity> scope1){
List<Opportunity> list1 = new List<Opportunity>();
Date t = Date.today();
for(Opportunity p : Scope1){ 
if(p.Renewal_date__c == t)
{ 
Opportunity opp=new Opportunity();
opp = p.clone();
opp.StageName = 'Qualification';
list1.add(opp); 
} 
} 

try {

insert list1;
} 
catch(Exception e) {
System.debug(e);
} 
}



global void finish(Database.BatchableContext BC){
}
}

Test Class –

@isTest
public class TestOpp
{
    static testMethod void BatchProcessAccount_TestMethod (){

         List<Opportunity> orglist = new List<Opportunity>();
         List<Opportunity> clonedlist = new List<Opportunity>();
         integer i = 0;

         for(i=0;i<5;i++)
         {
             Opportunity opp=new Opportunity();
                        opp.Name = 'opp' + i;
                        opp.StageName = 'Qualification';
                        opp.Type = 'New Customer';
                        opp.Description = 'test desc';
                        opp.CloseDate = Date.today();
                        opp.Renewal_date__c = Date.today();
                        opp.Amount = 2220;
                        opp.Reason_for_loss__c = 'abc';
                        opp.RecordTypeId = Schema.getGlobalDescribe().get('Opportunity').getDescribe().getRecordTypeInfosByName().get('Small Group').getRecordTypeId();
                        orglist.add(opp);
         }

        insert orglist;


        for(Opportunity p : orglist){ 
            Opportunity opp=new Opportunity();
            opp = p.clone();
            opp.StageName = 'Qualification';
            clonedlist.add(opp); 

        } 
        try{
            insert clonedlist;
        }
        catch(Exception e){
            system.debug(e);
        }

        Test.startTest();
        UpdateOpportunity tb = new UpdateOpportunity();
        Id batchId = Database.executeBatch(tb);
        Test.stopTest();

  }

}