The customer had a 45nm design and it was big. They had just made an RTL change to a 450K instance block and they couldn’t close timing. Worse, there were just two weeks until tapeout. Oasys was brought in and challenged to close timing on the block. They respun the block from RTL using RealTime Designer. The entire customer team pulled together with support from Oasys AEs. Even at 2am and on weekends the office would still be crowded. The outcome: they succeeded. The design taped-out two weeks later.