package bitwuzla

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SMT solver for AUFBVFP

Install 

dune-project
 Dependency

bitwuzla.github.io Readme Changelog MIT License Edit opam file Versions (8)

Authors

  1. F
    Frédéric Recoules

Maintainers

  1. F
    Frédéric Recoules <frederic.recoules@cea.fr>

Sources

bitwuzla-1.0.4.tbz
sha256=a336a72d979b24da11a5883e7fbebdaa74aa08f74056d290949cbf1a8101b8cd
sha512=6b20168df75bdfa9f4da8d3a114349a1add6de1ab7b47c3eb2458b2aa1bf394dfb304201cfcb86a8917ba8c70c81319bd131105ee42759eb5f03345905ff4636

doc/bitwuzla/Bitwuzla/Once/index.html

Module Bitwuzla.OnceSource

Create a new Bitwuzla session (check_sat can only be called once).

Parameters

Signature

Phantom type

Phantom types are annotations that allow the compiler to statically catch some sort mismatch errors. Size mismatch errors will still be caught at runtime.

Sourcetype bv = [
  1. | `Bv
]

The bit-vector kind.

Sourcetype rm = [
  1. | `Rm
]

The rounding-mode kind.

Sourcetype fp = [
  1. | `Fp
]

The floating-point kind.

Sourcetype ('a, 'b) ar = [
  1. | `Ar of 'a -> 'b
] constraint 'a = [< bv | rm | fp ] constraint 'b = [< bv | rm | fp ]

The array kind with 'a index and 'b element.

Both index and element should be of bit-vector, rounding-mode or floating-point kind

Sourcetype ('a, 'b) fn = [
  1. | `Fn of 'a -> 'b
] constraint 'b = [< bv ]

The function kind taking 'a argument and returning 'b element.

Functions accept only bit-vector, rounding-mode or floating-point as argument and return only bit-vector.

Core types

Sourcetype 'a sort

A sort of 'a kind.

Sourcetype 'a term

A term of 'a kind.

Sourcetype 'a value = private 'a term

A value of 'a kind.

Values are subtype of terms and can be downcasted using :> operator.

Sourcemodule Sort : sig ... end
Sourcemodule Term : sig ... end

Formula

Sourceval assert' : ?name:string -> bv term -> unit

assert' ~name t assert that the condition t is true.

t must be a boolean term (bv term of size 1).

  • parameter name

    The name of the assertion, if any.

  • parameter t

    The formula term to assert.

Sourcetype result =
  1. | Sat
    (*

    sat

    *)
  2. | Unsat
    (*

    unsat

    *)
  3. | Unknown
    (*

    unknown

    *)

A satisfiability result.

Sourceval pp_result : Format.formatter -> result -> unit

pp formatter result pretty print result.

  • parameter formatter

    The output formatter.

  • parameter result

    The result to print.

Sourceval check_sat : ?interrupt:(('a -> int) * 'a) -> unit -> result

check_sat ~interrupt () check satisfiability of current input formula.

  • parameter interrupt

    Stop the research and return Unknown if the callback function returns a positive value. Run into completion otherwise.

  • returns

    Sat if the input formula is satisfiable and Unsat if it is unsatisfiable, and Unknown when neither satistifiability nor unsatisfiability was determined, for instance when it was terminated by timeout.

Sourceval timeout : float -> (?interrupt:((float -> int) * float) -> 'b) -> 'b

timeout t f configure the interruptible function f with a timeout of t seconds.

timeout can be used to limit the time spend on check_sat or check_sat_assuming. For instance, for a 1 second time credit, use:

  • (timeout 1. check_sat) ()
  • (timeout 1. check_sat_assuming) assumptions
  • parameter t

    Timeout in second.

  • parameter f

    The function to configure.

  • returns

    An interruptible function configured to stop on timeout.

Sourceval get_value : 'a term -> 'a value

get_value t get a term representing the model value of a given term.

Requires that the last check_sat query returned Sat.

  • parameter t

    The term to query a model value for.

  • returns

    A term representing the model value of term t.

Sourceval unsafe_close : unit -> unit

unafe_close () close the session.

UNSAFE: call this ONLY to release the resources earlier if the session is about to be garbage collected.