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)
status = "headers-only";
        } else if (block->IsValid(BLOCK_VALID_SCRIPTS)) {
            
            status = "valid-fork";
        } else if (block->IsValid(BLOCK_VALID_TREE)) {
            
            status = "valid-headers";
        } else {
            
            status = "unknown";
        }
        obj.push_back(Pair("status", status));
        res.push_back(obj);
    }
    return res;
}
UniValue mempoolInfoToJSON()
{
    UniValue ret(UniValue::VOBJ);
    ret.push_back(Pair("size", (int64_t) mempool.size()));
    ret.push_back(Pair("bytes", (int64_t) mempool.GetTotalTxSize()));
    ret.push_back(Pair("usage", (int64_t) mempool.DynamicMemoryUsage()));
    size_t maxmempool = gArgs.GetArg("-maxmempool", DEFAULT_MAX_MEMPOOL_SIZE) * 1000000;
    ret.push_back(Pair("maxmempool", (int64_t) maxmempool));
    ret.push_back(Pair("mempoolminfee", ValueFromAmount(std::max(mempool.GetMinFee(maxmempool), ::minRelayTxFee).GetFeePerK())));
    ret.push_back(Pair("minrelaytxfee", ValueFromAmount(::minRelayTxFee.GetFeePerK())));
    return ret;
}
UniValue getmempoolinfo(const JSONRPCRequest& request)