(* Why3 driver for SMT-LIB2 syntax, excluding bit-vectors *)

prelude ";;; generated by SMT-LIB2 driver"

(*

Note: we do not insert any command "set-logic" because its
interpretation is specific to provers

prelude "(set-logic AUFNIRA)"

    A  : Array
    UF : Uninterpreted Function
    DT : Datatypes (not needed at the end ...)
    NIRA : NonLinear Integer Reals Arithmetic

*)

(* cannot be here because case of psmt2 files: filename "%f-%t-%g.smt2" *)

unknown "^\\(unknown\\|sat\\|Fail\\)$" "\\1"
unknown "^(:reason-unknown \\([^)]*\\))$" "\\1"
time "why3cpulimit time : %s s"
valid "^unsat$"

theory BuiltIn
  syntax type int   "Int"
  syntax type real  "Real"
  syntax predicate (=)  "(= %1 %2)"

  meta "encoding:kept" type int
  meta "encoding:ignore_polymorphism_ls" predicate (=)
end

theory Ignore
  syntax predicate ignore'term  "true"
  meta "encoding:ignore_polymorphism_ls" predicate ignore'term
end

theory int.Int

  prelude ";;; SMT-LIB2: integer arithmetic"

  syntax function zero "0"
  syntax function one  "1"

  syntax function (+)  "(+ %1 %2)"
  syntax function (-)  "(- %1 %2)"
  syntax function (*)  "(* %1 %2)"
  syntax function (-_) "(- %1)"

  syntax predicate (<=) "(<= %1 %2)"
  syntax predicate (<)  "(< %1 %2)"
  syntax predicate (>=) "(>= %1 %2)"
  syntax predicate (>)  "(> %1 %2)"

  remove prop MulComm.Comm
  remove prop MulAssoc.Assoc
  remove prop Unit_def_l
  remove prop Unit_def_r
  remove prop Inv_def_l
  remove prop Inv_def_r
  remove prop Assoc
  remove prop Mul_distr_l
  remove prop Mul_distr_r
  remove prop Comm
  remove prop Unitary
  remove prop Refl
  remove prop Trans
  remove prop Antisymm
  remove prop Total
  remove prop NonTrivialRing
  remove prop CompatOrderAdd
  remove prop ZeroLessOne

end

theory real.Real

  prelude ";;; SMT-LIB2: real arithmetic"

  syntax function zero "0.0"
  syntax function one  "1.0"

  syntax function (+)  "(+ %1 %2)"
  syntax function (-)  "(- %1 %2)"
  syntax function (*)  "(* %1 %2)"
  syntax function (/)  "(/ %1 %2)"
  syntax function (-_) "(- %1)"
  syntax function inv  "(/ 1.0 %1)"

  syntax predicate (<=) "(<= %1 %2)"
  syntax predicate (<)  "(< %1 %2)"
  syntax predicate (>=) "(>= %1 %2)"
  syntax predicate (>)  "(> %1 %2)"

  remove prop MulComm.Comm
  remove prop MulAssoc.Assoc
  remove prop Unit_def_l
  remove prop Unit_def_r
  remove prop Inv_def_l
  remove prop Inv_def_r
  remove prop Assoc
  remove prop Mul_distr_l
  remove prop Mul_distr_r
  remove prop Comm
  remove prop Unitary
  remove prop Inverse
  remove prop Refl
  remove prop Trans
  remove prop Antisymm
  remove prop Total
  remove prop NonTrivialRing
  remove prop CompatOrderAdd
  remove prop ZeroLessOne

  meta "encoding:kept" type real

end

theory real.Abs
  syntax function abs "(ite (>= %1 0.0) %1 (- %1))"

  remove allprops
end

theory real.MinMax

  remove allprops
end

theory real.FromInt
  syntax function from_int "(to_real %1)"

  remove allprops
end

theory real.Truncate
  syntax function truncate "(ite (>= %1 0.0) \
                                 (to_int %1) \
                                 (- (to_int (- %1))))"
  syntax function floor "(to_int %1)"
  syntax function ceil "(- (to_int (- %1)))"

  remove allprops
end

theory Bool
  syntax type     bool  "Bool"
  syntax function True  "true"
  syntax function False "false"

  meta "algebraic:kept" type bool
end

theory bool.Bool
  syntax function andb  "(and %1 %2)"
  syntax function orb   "(or %1 %2)"
  syntax function xorb  "(xor %1 %2)"
  syntax function notb  "(not %1)"
  syntax function implb "(=> %1 %2)"
end

theory bool.Ite
  syntax function ite "(ite %1 %2 %3)"
  meta "encoding:lskept" function ite
  meta "encoding:ignore_polymorphism_ls" function ite
end

(* not uniformly interpreted by provers
theory real.Truncate
  syntax function floor "(to_int %1)"
  remove prop Floor_down
  remove prop Floor_monotonic
end
*)

theory HighOrd
  syntax type     (->) "(Array %1 %2)"
  syntax function (@)  "(select %1 %2)"

  meta "encoding:lskept" function (@)
  meta "encoding:ignore_polymorphism_ts" type (->)
  meta "encoding:ignore_polymorphism_ls" function (@)
end


theory bv.BV_Gen

  (* removing well-founded properties, they cannot be useful
     for SMT solvers, and they imply polymorphism *)
  remove prop ult_wf
  remove prop ugt_wf
  remove prop slt_wf
  remove prop sgt_wf

end


theory map.Map
  syntax function get "(select %1 %2)"
  syntax function set "(store %1 %2 %3)"

  meta "encoding:lskept" function get
  meta "encoding:lskept" function set
  meta "encoding:ignore_polymorphism_ls" function get
  meta "encoding:ignore_polymorphism_ls" function ([])
  meta "encoding:ignore_polymorphism_ls" function set
  meta "encoding:ignore_polymorphism_ls" function ([<-])
end

theory map.Const
  meta "encoding:lskept" function const
(*  syntax function const "(const[%t0] %1)" *)
end
