Worked on the esbmc/esbmc repository to enhance the reliability of software verification involving C unions. Focused on fixing a bug in the symbolic assignment and pointer dereference logic, the work improved how ESBMC analyzes code that uses unions, pointer arithmetic, or type punning. By updating symex_assign.cpp and dereference.cpp, explicit support for unions with all members at offset zero was added, ensuring correct member access and reducing verification failures. The solution included a minimal reproducer to aid future maintenance and testing. This effort leveraged expertise in C programming, compiler design, and static analysis to address complex union handling scenarios.