Set logic to QF_AUFLIRA for Yices-smt2, as it will not even start parsing the input file otherwise.

drivers/yices-smt2.drv

 (* Why3 driver for Yices-smt2 solver *)
 
 prelude ";;; this is a prelude for Yices-smt2"
-prelude "(set-logic AUFLIRA)"
+prelude "(set-logic QF_AUFLIRA)"
 (* A  : Array
    UF : Uninterpreted Function
    LIRA : Linear Integer Reals Arithmetic