** Calling: z3 -nw -in -smt2
[GOOD] ; Automatically generated by SBV. Do not edit.
[GOOD] (set-option :print-success true)
[GOOD] (set-option :global-declarations true)
[GOOD] (set-option :smtlib2_compliant true)
[GOOD] (set-option :diagnostic-output-channel "stdout")
[GOOD] (set-option :produce-models true)
[GOOD] (set-option :pp.max_depth      4294967295)
[GOOD] (set-option :pp.min_alias_size 4294967295)
[GOOD] (set-logic ALL)
[GOOD] ; --- uninterpreted sorts ---
[GOOD] ; --- tuples ---
[GOOD] ; --- sums ---
[GOOD] ; --- literal constants ---
[GOOD] (define-fun s1 () (Seq Int) (seq.unit 2))
[GOOD] (define-fun s3 () (Seq Int) (seq.unit 1))
[GOOD] ; --- skolem constants ---
[GOOD] (declare-fun s0 () (Seq Int)) ; tracks user variable "a"
[GOOD] ; --- constant tables ---
[GOOD] ; --- skolemized tables ---
[GOOD] ; --- arrays ---
[GOOD] ; --- uninterpreted constants ---
[GOOD] ; --- user given axioms ---
[GOOD] ; --- formula ---
[GOOD] (define-fun s2 () (Seq Int) (seq.++ s0 s1))
[GOOD] (define-fun s4 () (Seq Int) (seq.++ s3 s0))
[GOOD] (define-fun s5 () Bool (= s2 s4))
[GOOD] (assert s5)
[SEND] (check-sat)
[RECV] unsat
*** Solver   : Z3
*** Exit code: ExitSuccess