Snake experts please?

ok so came home yesterday to find that my husbands Brazilian rainbow boa was NOT in her cage. shes not big shes sill small and this is the first time its ever happend. So wht im askin is wht r the most common places she could b at? we looked high and low yesterday an couldnt find her, is it possible tht one of our dogs ate her? we hae 3pitbulls and 1 great dane, 2 of the pitbulls r free rroamersaround the house. Any advice would b ggratefulbut only from those who know wth there talkin about plz