I accelerated a transaction which similar in size and fee (1sat/byte) on Antpool but up until now, its still unconfirmed. It's either because antpool's accelerator service prioritizes transactions with a higher included fee so the 1 sat per byte at lowest priority furthermore every minute a new TXID is submitted so this decreases your chances or maybe they just don't accept transactions with this fee.
As for viabtc, It doesn't meet the required minimum included fee.
And Confirmtx seems having a problem???
lets see if ConfirmTx can really stand up for his name, there was a bit ruckus on his thread.
I also have a few stuck txs about same BTC (~250k sats) with ~1sat/byte fee but 3k in size
they are still unconfirmed to this day ~18 days
and still displayed on bc.info and blocktrail
If op or someone uses the above accelerators for this transaction, The chances of getting it confirmed is low.
I don't know if they are still offering this but there's no hurt in trying
If not you can just wait for your transaction to be dropped. There's no actual time for that but it should be soon since your transaction has been unconfirmed for too long. Once it does, Your wallet will go back to a state where the transaction didn't happen so the coins should be spendable again.
As for viabtc, It doesn't meet the required minimum included fee.
And Confirmtx seems having a problem???
Uh thanks very much. How did u do that? Do u know ppl from there? 
ConfirmTx I already tried a few days ago though. Unfortunately didnt do anything
ConfirmTx I already tried a few days ago though. Unfortunately didnt do anythinglets see if ConfirmTx can really stand up for his name, there was a bit ruckus on his thread.
I also have a few stuck txs about same BTC (~250k sats) with ~1sat/byte fee but 3k in size
they are still unconfirmed to this day ~18 days
and still displayed on bc.info and blocktrailIf op or someone uses the above accelerators for this transaction, The chances of getting it confirmed is low.
I don't know if they are still offering this but there's no hurt in trying
Ask a miner for help
Some mining pools and miners offer services to allow you to prioritize your transaction in their mempool so that it is chosen sooner for inclusion in a block. You can contact the users Quickseller and macbook-air. These two users have access to F2Pool's transaction selector and they can help you with confirming your stuck transaction.
Some mining pools and miners offer services to allow you to prioritize your transaction in their mempool so that it is chosen sooner for inclusion in a block. You can contact the users Quickseller and macbook-air. These two users have access to F2Pool's transaction selector and they can help you with confirming your stuck transaction.
If not you can just wait for your transaction to be dropped. There's no actual time for that but it should be soon since your transaction has been unconfirmed for too long. Once it does, Your wallet will go back to a state where the transaction didn't happen so the coins should be spendable again.