Segmentation fault in gSoap client

Question

I'm using gSoap for fetch the server's TimeZone from exchange server, My client code is:

#include "soapExchangeServiceBindingProxy.h"
#include "ExchangeServiceBinding.nsmap"


int main()
{
    ExchangeServiceBindingProxy service;
    service.soap_endpoint = "https://outlook.office365.com/ews/exchange.asmx";

    ns1__GetServerTimeZonesType request;
    __ns1__GetServerTimeZonesResponse response;


    const std::string s("Eastern Standard Time");
    request.Ids = (ns2__NonEmptyArrayOfTimeZoneIdType *)&s;



    if(service.GetServerTimeZones(&request , response) == SOAP_OK){

        std::cout << "Success Response: "<< response.ns1__GetServerTimeZonesResponse << std::endl;
    }
    else
      service.soap_stream_fault(std::cerr); 
   service.destroy(); // delete data and release memory 

   return 0;
}

This code compiled successfully but when i tried to run it, it give Segmentation fault, I'm newbie in C++ and gSoap also so i don't know exactly what am i doing wrong here?

If you need more code for this, i'll surly provide it to you, please let me know for this. Any help appreciated. thank you.