set_max_delay 4 -through [get_pins inst0/I0]
set_max_delay 5 -through [get_pins inst0/I0] -through [get_pins inst1/I3]You keep both exceptions. The timing engine uses the tighter
constraint for timing analysis. In this example, it applies the 4 ns max delay even
on paths going through the inst1/I3 pin.