(set-logic ALL_SUPPORTED)
(set-info :status sat)
(set-option :strings-exp true)
 
(declare-fun s () String)
(assert (= s "I like cookies."))
 
(declare-fun target () String)
(assert (= target "like"))
 
(declare-fun location () Int)
(assert (= location (str.indexof s target 0)))
 
(check-sat)