[SBV] tests/T18.hs:11:1 Proving "f", using Z3.
** Starting symbolic simulation..
** Generated symbolic trace:
SORTS
  Age
INPUTS
  s0 :: Age, aliasing "a"
  s1 :: Age, aliasing "b"
CONSTANTS
  s_2 = False :: Bool
  s_1 = True :: Bool
TABLES
ARRAYS
UNINTERPRETED CONSTANTS
USER GIVEN CODE SEGMENTS
AXIOMS
DEFINE
  s2 :: SBool = s0 == s1
CONSTRAINTS
ASSERTIONS
OUTPUTS
  s2
** Translating to SMT-Lib..
** Checking Theoremhood..
** Generated SMTLib program:
; Automatically generated by SBV. Do not edit.
(set-option :produce-models true)
; has user-defined sorts, no logic specified.
; --- uninterpreted sorts ---
(declare-sort Age 0)  ; N.B. Uninterpreted: originating from sbvPlugin: tests/T18.hs:11:3
; --- literal constants ---
(define-fun s_2 () Bool false)
(define-fun s_1 () Bool true)
; --- skolem constants ---
(declare-fun s0 () Age) ; tracks user variable "a"
(declare-fun s1 () Age) ; tracks user variable "b"
; --- constant tables ---
; --- skolemized tables ---
; --- arrays ---
; --- uninterpreted constants ---
; --- user given axioms ---
; --- formula ---
(assert ; no quantifiers
   (let ((s2 (= s0 s1)))
   (not s2)))
** Calling: "z3 -nw -in -smt2"
** Sending the following model extraction commands:
(get-value (s0))
(get-value (s1))
** Z3 output:
sat
((s0 Age!val!0))
((s1 Age!val!1))
** Done..
[Z3] Falsifiable. Counter-example:
  a = Age!val!0 :: Age
  b = Age!val!1 :: Age
[SBV] Failed. (Use option 'IgnoreFailure' to continue.)