tools.aqua.konstraints.solvers.Solver.kt Maven / Gradle / Ivy

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/*
 * SPDX-License-Identifier: Apache-2.0
 *
 * Copyright 2023-2024 The Konstraints Authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package tools.aqua.konstraints.solvers

import tools.aqua.konstraints.smt.Model
import tools.aqua.konstraints.smt.SMTProgram
import tools.aqua.konstraints.smt.SatStatus

interface Solver : AutoCloseable {
  /** Solves the provided program using this solver */
  fun solve(program: SMTProgram): SatStatus

  /** Returns a model if available, else returns null */
  fun getModelOrNull(): Model?

  /** Returns the model if one was generated */
  fun getModel(): Model

  /** Checks if model is available */
  fun isModelAvailable(): Boolean
}