travis log: https://travis-ci.org/bitcoin/bitcoin/jobs/327785286

```
2018-01-11 17:49:08.016000 TestFramework (INFO): Sending from node 1 (['-addresstype=p2sh-segwit']) with multisig using default
2018-01-11 17:49:10.096000 TestFramework (INFO): Sending from node 2 (['-addresstype=p2sh-segwit', '-changetype=bech32']) with multisig using default
2018-01-11 17:49:12.492000 TestFramework (ERROR): Assertion failed
Traceback (most recent call last):
  File "/home/travis/build/bitcoin/bitcoin/build/bitcoin-i686-pc-linux-gnu/test/functional/test_framework/test_framework.py", line 118, in main
    self.run_test()
  File "/home/travis/build/bitcoin/bitcoin/build/bitcoin-i686-pc-linux-gnu/test/functional/address_types.py", line 183, in run_test
    assert_equal(unconf_balances[to_node], to_send * 10 * (2 + n))
  File "/home/travis/build/bitcoin/bitcoin/build/bitcoin-i686-pc-linux-gnu/test/functional/test_framework/util.py", line 38, in assert_equal
    raise AssertionError("not(%s)" % " == ".join(str(arg) for arg in (thing1, thing2) + args))
AssertionError: not(0E-8 == 714.73999460)
ApplyStats(stats, ss, prevkey, outputs);
                outputs.clear();
            }
            prevkey = key.hash;
            outputs[key.n] = std::move(coin);
        } else {
            return error("%s: unable to read value", __func__);
        }
        pcursor->Next();
    }
    if (!outputs.empty()) {
        ApplyStats(stats, ss, prevkey, outputs);
    }
    stats.hashSerialized = ss.GetHash();
    stats.nDiskSize = view->EstimateSize();
    return true;
}
UniValue pruneblockchain(const JSONRPCRequest& request)
{
    if (request.fHelp || request.params.size() != 1)
        throw std::runtime_error(
            "pruneblockchain\n"
            "\nArguments:\n"
            "1. \"height\"       (numeric, required) The block height to prune up to. May be set to a discrete height, or a unix timestamp\n"
            "                  to prune blocks whose block time is at least 2 hours older than the provided timestamp.\n"
            "\nResult:\n"
            "n    (numeric) Height of the last block pruned.\n"
            "\nExamples:\n"
            + HelpExampleCli("pruneblockchain", "1000")
            + HelpExampleRpc("pruneblockchain", "1000"));