def _job_sorting_key(self, job):
        MAX_BLOCKS_PER_FUNCTION = 1000000
        task_functions = list(reversed(
            list(task.function_address for task in self._task_stack if isinstance(task, FunctionAnalysis))
            ))
        try:
            function_pos = task_functions.index(job.func_addr)
        except ValueError:
            l.warning('Function address %
            return 0
        try:
            block_in_function_pos = self._ordered_node_addrs(job.func_addr).index(job.addr)
        except ValueError:
            block_in_function_pos = min(job.addr - job.func_addr, MAX_BLOCKS_PER_FUNCTION - 1)
        return block_in_function_pos + MAX_BLOCKS_PER_FUNCTION * function_pos