> eth.getTransaction('0xdc9ccbc4ceb2bb2995936ec1499b5832fe20182c8aafdf1f03629b7c51ddbe14')
{
  blockHash: "0xd424238083b52fac282897bd92489de5cca941e65b8540edb179fb6f5e3140d1",
  blockNumber: 36,
  from: "0x53f8adc81dd717ef85051d30512d976b67de9812",
  gas: 107369,
  gasPrice: 1000000000,
  hash: "0xdc9ccbc4ceb2bb2995936ec1499b5832fe20182c8aafdf1f03629b7c51ddbe14",
  input: "0x608060405234801561001057600080fd5b5060c68061001f6000396000f3fe6080604052348015600f57600080fd5b506004361060325760003560e01c806360fe47b11460375780636d4ce63c146062575b600080fd5b606060048036036020811015604b57600080fd5b8101908080359060200190929190505050607e565b005b60686088565b6040518082815260200191505060405180910390f35b8060008190555050565b6000805490509056fea265627a7a723058200aa2dd1cde3ab552069d669da8d4bf38c4149ad3111141b4f2119e0cb129b5ae64736f6c63430005090032",
  nonce: 1,
  r: "0x384d96f64208198e4b0c33ff23a142033d23697e542603ba4ca30266a2de46dd",
  s: "0x7b8c9715bfe9d2d492814c116f087c2b45877b91370a1c26ec154ca8131f71b9",
  to: null,
  transactionIndex: 0,
  v: "0x41",
  value: 0
}

> cnt = eth.contract(myContract.abi).at(myContract.address)
{
  abi: [{
      constant: false,
      inputs: [{...}],
      name: "set",
      outputs: [],
      payable: false,
      stateMutability: "nonpayable",
      type: "function"
  }, {
      constant: true,
      inputs: [],
      name: "get",
      outputs: [{...}],
      payable: false,
      stateMutability: "view",
      type: "function"
  }],
  address: "0xd5aab8db7c2a650259e48c1e699e1f82bb3b922a",
  transactionHash: null,
  allEvents: function(),
  get: function(),
  set: function()
}
> cnt.set.sendTransaction(6,{from:eth.accounts[0]})
Error: gas required exceeds allowance (3337487) or always failing transaction
    at web3.js:3143:20
    at web3.js:6347:15
    at web3.js:5081:36
    at web3.js:4137:16
    at <anonymous>:1:1