{
    "returndatasize_after_failing_delegatecall" : {
        "env" : {
            "currentCoinbase" : "0x2adc25665018aa1fe0e6bc666dac8fc2697ff9ba",
            "currentDifficulty" : "0x20000",
            "currentGasLimit" : "0x0a00000000",
            "currentNumber" : "0x01",
            "currentTimestamp" : "0x03e8",
            "previousHash" : "0x5e20a0453cecd065ea59c37ac63e079ee08998b6045136a8ce6635c7912ec0b6"
        },
        "pre" : {
            "0x0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6" : {
                "balance": "0x1000000",
                "nonce": "0x0",
                "code": "",
                "storage": { }
            },
            "0x1000000000000000000000000000000000000001": {
                "balance" : "0x00",
                "code": "{ (seq (DELEGATECALL 10000 0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b 0 0 0 0) (SSTORE 0 (RETURNDATASIZE)))}",
                "nonce" : "0x00",
                "storage" : {
                    "0x00" : "0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"
                }
            },
            "0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b" : {
                "balance" : "0x6400000000",
                "//code": "invalid opcode",
                "code" : "0xfd",
                "nonce" : "0x00",
                "storage" : {
                }
            }
        },
        "expect": [
            {   
                "indexes" : { 
                   "data" : -1, 
                   "gas" : -1, 
                   "value" : -1
                },
                "network" : ["Byzantium", "Constantinople"],
                "result" : { 
                    "0x1000000000000000000000000000000000000001" : { 
                        "storage" : { 
                            "0x00" : "0x00"
                        }
                    }
                }
            }
        ],
        "transaction" : {
            "data" : [
                ""
            ],
            "gasLimit" : [
                "0x0a00000000"
            ],
            "gasPrice" : "0x01",
            "nonce" : "0x00",
            "secretKey" : "0x45a915e4d060149eb4365960e6a7a45f334393093061116b197e3240065ff2d8",
            "to" : "0x1000000000000000000000000000000000000001",
            "value" : [
                "0x00"
            ]
        }
    }
}