Negotiations between the UFCW and Stop and Shop continue after the contracts expired last night: 'We're committed to staying for as long as it takes,' Faith Weiner, a Stop & Shop spokeswoman, said shortly after midnight. Brian Petronella, vice president of Local 371 UFCW, said earlier in the evening that no progress had been made during the first 10 hours of Saturday's negotiations and that the two sides remained far apart. If no agreement is reached, workers are to vote today on whether to give union leadership authorization to call a strike. Any strike would begin at the discretion of leaders. 'It won't be this weekend,' Petronella said. Union leaders have said the main sticking points are health care benefits and overtime wages for workers in five locals in Connecticut, Massachusetts and Rhode Island. The union represents cashiers and workers in Stop & Shop's bakery, grocery, deli, seafood, dairy, meat, frozen food and produce departments. Eighty percent of the workers are part time.