Symbolic State Space
The symbolic state space represents the entire collection of possible states a smart contract can reach, expressed through symbolic variables rather than concrete values. By mapping this space, developers can identify regions that correspond to invalid or dangerous states, such as a protocol being under-collateralized.
Symbolic execution works by navigating this state space to find if any path leads to an undesirable configuration. This allows for a deep understanding of the contract's behavior across all possible market conditions.
It provides a complete view of the protocol's safety, far beyond what traditional unit testing can achieve. It is a powerful conceptual tool for reasoning about the security of complex financial systems.
The state space defines the boundaries of what the contract is allowed to do.