Program verification is the process of ensuring that a software program behaves as intended and meets its specifications. This involves checking the correctness of the program's logic and identifying any potential errors or bugs. Techniques such as formal methods, testing, and static analysis are commonly used to achieve this goal. By verifying a program, developers can increase confidence in its reliability and security. This is especially important in critical systems, such as those used in aerospace, medical devices, or financial services, where failures can have serious consequences. Effective program verification helps prevent costly mistakes and enhances overall software quality.