| set_clock_uncertainty -setup -from clka -to clkb 0.3 | |
| set_clock_uncertainty -hold -from clka -to clkb 0.2 | |
| set_clock_uncertainty -hold -from {clka clkc} -to clkb 0.2 | |
| set_clock_uncertainty -hold -from {clka clkc} -to {clkb clkd} 0.2 | |
| set_clock_uncertainty -setup -from [get_clocks {clka clkc}] -to {clkb clkd} 0.2 |