default boolean isVirtualOperation() {
    return false;
  }
Determines whether this operation has been virtually added to the contract code. For instance
if the contract is not ended by a STOP opcode the {@link EVM} adds an explicit end of script
stop which can be considered as virtual.

@return a boolean indicating if the operation is virtual.
evm/src/main/java/org/hyperledger/besu/evm/operation/Operation.java