There is provided a production line having a plurality of mounting apparatus of electronic components in which the overall production efficiency is sustained by an alternation scheme when a mounting apparatus has a long cycle time due to a high malfunction rate. The float valve is placed upstream of an air-outlet opening. The holding portion of the second holder unit is provided with a bus bar insertion portion through which the bus bars are inserted in the direction in which the batteries are juxtaposed, and the second holding portion of the first holder unit is provided with an encompassing wall and adapted to insert the bus bars in a direction in which the first holder unit is attached to the battery group. The yield instruction is an instruction in the thread. A device encapsulator is communicatively coupled to the one or more processors. This invention provides a Directed Acyclic Graph or DAG representation of structure of one or more loops in the application by performing a static and a dynamic analysis of the application source code and depicts the loop information as LoopID, loop weight, total loop iteration, average loop iteration, total loop iteration time, average loop iteration time and embedded vector size.