omg withdrawdeposit VM exception

[victoryeo]

Issue Type

[x] bug report
[ ] feature request

Current Behavior

When doing omg withdraw, there is VM exception

Expected Behavior

When doing omg withdraw, there should not be problem

Steps to Reproduce

1. omg deposit 100 0xfd02EcEE62797e75D86BCff1642EB0844afB28c7
2. omg withdrawdeposit 0xfd02EcEE62797e75D86BCff1642EB0844afB28c7 1 100

• Full output of error:
  child chain <plasma.client.child_chain_service.ChildChainService object at 0x103441f98>
  Traceback (most recent call last):
  File "/usr/local/bin/omg", line 11, in
  load_entry_point('plasma==0.0.0', 'console_scripts', 'omg')()
  File "/usr/local/lib/python3.6/site-packages/click-6.7-py3.6.egg/click/core.py", line 722, in call
  return self.main(*args, **kwargs)
  File "/usr/local/lib/python3.6/site-packages/click-6.7-py3.6.egg/click/core.py", line 697, in main
  rv = self.invoke(ctx)
  File "/usr/local/lib/python3.6/site-packages/click-6.7-py3.6.egg/click/core.py", line 1066, in invoke
  return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/usr/local/lib/python3.6/site-packages/click-6.7-py3.6.egg/click/core.py", line 895, in invoke
  return ctx.invoke(self.callback, **ctx.params)
  File "/usr/local/lib/python3.6/site-packages/click-6.7-py3.6.egg/click/core.py", line 535, in invoke
  return callback(*args, **kwargs)
  File "/usr/local/lib/python3.6/site-packages/click-6.7-py3.6.egg/click/decorators.py", line 27, in new_func
  return f(get_current_context().obj, *args, **kwargs)
  File "/usr/local/lib/python3.6/site-packages/plasma-0.0.0-py3.6.egg/plasma/cli/cli.py", line 130, in withdraw
  client.withdraw(blknum, txindex, oindex, tx, proof, sigs)
  File "/usr/local/lib/python3.6/site-packages/plasma-0.0.0-py3.6.egg/plasma/client/client.py", line 69, in withdraw
  self.root_chain.startExit(utxo_pos, encoded_transaction, proof, sigs, transact={'from': owner_addr})
  File "/usr/local/lib/python3.6/site-packages/web3-4.5.0-py3.6.egg/web3/contract.py", line 879, in call
  return self.__prepared_function(*args, **kwargs)
  File "/usr/local/lib/python3.6/site-packages/web3-4.5.0-py3.6.egg/web3/contract.py", line 892, in __prepared_function
  return getattr(self._function(*args), modifier)(modifier_dict)
  File "/usr/local/lib/python3.6/site-packages/web3-4.5.0-py3.6.egg/web3/contract.py", line 1142, in transact
  **self.kwargs
  File "/usr/local/lib/python3.6/site-packages/web3-4.5.0-py3.6.egg/web3/contract.py", line 1438, in transact_with_contract_function
  txn_hash = web3.eth.sendTransaction(transact_transaction)
  File "/usr/local/lib/python3.6/site-packages/web3-4.5.0-py3.6.egg/web3/eth.py", line 263, in sendTransaction
  get_buffered_gas_estimate(self.web3, transaction),
  File "/usr/local/lib/python3.6/site-packages/web3-4.5.0-py3.6.egg/web3/utils/transactions.py", line 84, in get_buffered_gas_estimate
  gas_estimate = web3.eth.estimateGas(gas_estimate_transaction)
  File "/usr/local/lib/python3.6/site-packages/web3-4.5.0-py3.6.egg/web3/eth.py", line 304, in estimateGas
  [transaction],
  File "/usr/local/lib/python3.6/site-packages/web3-4.5.0-py3.6.egg/web3/manager.py", line 110, in request_blocking
  raise ValueError(response["error"])
  ValueError: {'message': 'VM Exception while processing transaction: revert Invalid attached value.', 'code': -32000, 'data': {'stack': 'RuntimeError: VM Exception while processing transaction: revert Invalid attached value.\n at Function.RuntimeError.fromResults (/usr/local/lib/node_modules/ganache-cli/node_modules/ganache-core/lib/utils/runtimeerror.js:89:13)\n at /usr/local/lib/node_modules/ganache-cli/node_modules/ganache-core/lib/blockchain_double.js:575:30\n

• Command that caused error:
  omg withdrawdeposit 0xfd02EcEE62797e75D86BCff1642EB0844afB28c7 1 100

• Code that caused error:

Suggested Fix

the code change is in client.py

    bond = 1234567890
    self.root_chain.startDepositExit(deposit_pos, NULL_ADDRESS, amount, transact={'from': owner, 'value': bond})

Motivation for Change

omg withdraw deposit needs to be successful

System Specs

• python version: 3.6.5
• pyetherem version:
• environment (output of running pip freeze):
• operating system: mac os high sierra