Currently, the multisig descriptor constructions are limited to 16 keys only possibly because of template parsing reasons. Under p2sh context, such scripts would be invalid anyway because of 520-byte rule, but we can support up to 20 keys for CHECKMULTISIG in witness script context. 


{
                    
                    CScriptNum bn((int)opcode - (int)(OP_1 - 1));
                    stack.push_back(bn.getvch());
                    
                    
                }
                break;
                
                
                
                case OP_NOP:
                    break;
                case OP_CHECKLOCKTIMEVERIFY:
                {
                    if (!(flags & SCRIPT_VERIFY_CHECKLOCKTIMEVERIFY)) {
                        
                        break;
                    }
                    if (stack.size() < 1)
                        return set_error(serror, SCRIPT_ERR_INVALID_STACK_OPERATION);