Program: 174293
Project: 174293
Buggy source:
private void setListeners(){
  mBackBtn.setOnClickListener(new View.OnClickListener(){
    @Override public void onClick(    View v){
      onBackPressed();
    }
  }
);
  enterVerificationCodeListener=new View.OnClickListener(){
    @Override public void onClick(    View v){
      String confirmationCode=NumberTranslator.toEnglish(phoneConfirimationCodeEt.getText().toString());
      if (!confirmationCode.trim().matches(regexStr)) {
        Toasti.showS("String_Node_Str");
        return;
      }
      apiRequest.login(confirmationCode);
      progressView.setVisibility(View.VISIBLE);
      login_get_verification_tv.setVisibility(View.INVISIBLE);
    }
  }
;
  enterPhoneNumber=new View.OnClickListener(){
    @Override public void onClick(    View v){
      String phoneNumber=NumberTranslator.toEnglish(phoneConfirimationCodeEt.getText().toString());
      if (phoneNumber.length() != 11 || !phoneNumber.startsWith("String_Node_Str") || !phoneNumber.trim().matches(regexStr)) {
        Toasti.showS("String_Node_Str");
        return;
      }
      apiRequest.register(phoneNumber);
      progressView.setVisibility(View.VISIBLE);
      login_get_verification_tv.setVisibility(View.INVISIBLE);
    }
  }
;
  not_recieved_code_btn.setOnClickListener(new View.OnClickListener(){
    @Override public void onClick(    View v){
      AppController.storeString(Constants.TELEPHONE,null);
      enterTelephoneNumber();
    }
  }
);
  if (AppController.getStoredString(Constants.TELEPHONE) == null) {
    enterTelephoneNumber();
  }
 else {
    enterVerificationCode();
  }
}

Fixed version (ground truth):
private void setListeners(){
  mBackBtn.setOnClickListener(new View.OnClickListener(){
    @Override public void onClick(    View v){
      onBackPressed();
    }
  }
);
  enterVerificationCodeListener=new View.OnClickListener(){
    @Override public void onClick(    View v){
      String confirmationCode=NumberTranslator.toEnglish(phoneConfirimationCodeEt.getText().toString());
      if (!confirmationCode.trim().matches(regexStr)) {
        Snackbari.showS(mBackBtn,"String_Node_Str");
        return;
      }
      apiRequest.login(confirmationCode);
      progressView.setVisibility(View.VISIBLE);
      login_get_verification_tv.setVisibility(View.INVISIBLE);
      secondBtnLay.setOnClickListener(notRecievedCode);
    }
  }
;
  enterPhoneNumber=new View.OnClickListener(){
    @Override public void onClick(    View v){
      String phoneNumber=NumberTranslator.toEnglish(phoneConfirimationCodeEt.getText().toString());
      if (phoneNumber.length() != 11 || !phoneNumber.startsWith("String_Node_Str") || !phoneNumber.trim().matches(regexStr)) {
        Snackbari.showS(mBackBtn,"String_Node_Str");
        return;
      }
      apiRequest.register(phoneNumber);
      progressView.setVisibility(View.VISIBLE);
      login_get_verification_tv.setVisibility(View.INVISIBLE);
      secondBtnLay.setOnClickListener(enterVerificationCodeState);
    }
  }
;
  notRecievedCode=new View.OnClickListener(){
    @Override public void onClick(    View v){
      AppController.storeString(Constants.TELEPHONE,null);
      enterTelephoneNumber();
    }
  }
;
  enterVerificationCodeState=new View.OnClickListener(){
    @Override public void onClick(    View v){
      String phoneNumber=NumberTranslator.toEnglish(phoneConfirimationCodeEt.getText().toString());
      if (phoneNumber.length() != 11 || !phoneNumber.startsWith("String_Node_Str") || !phoneNumber.trim().matches(regexStr)) {
        Snackbari.showS(mBackBtn,"String_Node_Str");
        return;
      }
      AppController.storeString(Constants.TELEPHONE,phoneNumber);
      enterVerificationCode();
    }
  }
;
  if (AppController.getStoredString(Constants.TELEPHONE) == null) {
    enterTelephoneNumber();
  }
 else {
    enterVerificationCode();
  }
}