A character was hit by cone of cold and failed their save, and due to high rolls of damage, they are killed outright by massive damage and become a frozen statue. Fortunately, the cleric has Revivify prepared. We'd need to thaw the statue before casting revivify (assume the DM says so), and so we only have one minute or less to thaw the PC.
The obvious fast method would be by using magic, however by RAW, spells do not do anything more than their description, so if a spell does not have descriptive text that says that it melts ice, it doesn't. As far as I remember, even fire-based spells don't specifically say that they "release heat;" that suggests to me that fire spells can't melt ice, so firebolting the statue won't work.
The closest I can think of are spells that specifically say they set unworn equipment or objects on fire, thus it being reasonable to rule that they can melt ice.
Going by RAW, is there any spell that can be used to melt ice?
Preferably it can melt nonmagical and magical ice, but just either is fine. It also does not need to be a fire-based spell. Wish is also a too obvious answer since you can do virtually anything with it.