SolAuditEstimator: Audit Time Estimation Algorithm

Input:

• Smart contract code

Output:

• Estimated time required for the audit (in hours)

Steps:

1. Analyze the Size of the Contract:

• Count the lines of code (LOC).
  • small_contract threshold: <= 200 LOC
  • medium_contract threshold: 201-1000 LOC
  • large_contract threshold: >1000 LOC

2. Determine Complexity:

• Count the number of functions.
• Identify and count external calls.
• Detect if the contract interacts with other contracts (e.g., using interface or import).
• Check for advanced Solidity features, such as assembly blocks.
• Determine if the contract is upgradeable.

3. Estimate Base Audit Time:

• For small_contract: 5 hours
• For medium_contract: 20 hours
• For large_contract: 50 hours

4. Adjust for Complexity:

• Add 0.5 hours for every function after the first 10.
• Add 2 hours for every external call detected.
• If other contracts are interacted with, add 5 hours.
• For every detected advanced Solidity feature, add 3 hours.
• If the contract is upgradeable, adjust accordingly (considering factors such as proxy patterns, data migration, and administrative functions).

5. Compile and Report:

• Sum the base audit time and adjustments to get the total estimated audit time.

Return:

• Return the total estimated audit time.

Usage:

node contract_estimator.js <full path to contract code> [--optimizer-runs <number of optimizer runs>]