hu.bme.mit.theta.xcfa.cli.utils.XcfaParser.kt Maven / Gradle / Ivy

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Xcfa Cli subproject in the Theta model checking framework
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/*
 *  Copyright 2024 Budapest University of Technology and Economics
 *
 *  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 hu.bme.mit.theta.xcfa.cli.utils

import hu.bme.mit.theta.c2xcfa.getXcfaFromC
import hu.bme.mit.theta.common.logging.Logger
import hu.bme.mit.theta.frontend.ParseContext
import hu.bme.mit.theta.frontend.chc.ChcFrontend
import hu.bme.mit.theta.frontend.litmus2xcfa.LitmusInterpreter
import hu.bme.mit.theta.frontend.transformation.ArchitectureConfig
import hu.bme.mit.theta.frontend.transformation.grammar.preprocess.ArithmeticTrait
import hu.bme.mit.theta.llvm2xcfa.ArithmeticType
import hu.bme.mit.theta.llvm2xcfa.XcfaUtils
import hu.bme.mit.theta.xcfa.analysis.ErrorDetection
import hu.bme.mit.theta.xcfa.cli.params.CHCFrontendConfig
import hu.bme.mit.theta.xcfa.cli.params.ExitCodes
import hu.bme.mit.theta.xcfa.cli.params.InputType
import hu.bme.mit.theta.xcfa.cli.params.XcfaConfig
import hu.bme.mit.theta.xcfa.model.XCFA
import hu.bme.mit.theta.xcfa.passes.ChcPasses
import org.antlr.v4.runtime.CharStreams
import java.io.File
import java.io.FileInputStream
import java.io.FileReader
import javax.script.ScriptEngine
import javax.script.ScriptEngineManager
import kotlin.system.exitProcess


fun getXcfa(config: XcfaConfig<*, *>, parseContext: ParseContext, logger: Logger, uniqueWarningLogger: Logger) =
    try {
        when (config.frontendConfig.inputType) {
            InputType.CHC -> {
                val chcConfig = config.frontendConfig.specConfig as CHCFrontendConfig
                parseChc(config.inputConfig.input!!, chcConfig.chcTransformation, parseContext, logger,
                    uniqueWarningLogger)
            }

            InputType.C -> {
                parseC(config.inputConfig.input!!, config.inputConfig.property, parseContext, logger,
                    uniqueWarningLogger)
            }

            InputType.LLVM -> XcfaUtils.fromFile(config.inputConfig.input!!, ArithmeticType.efficient)

            InputType.LITMUS -> LitmusInterpreter.getXcfa(config.inputConfig.input!!)

            InputType.JSON -> {
                val gson = getGson()
                gson.fromJson(config.inputConfig.input!!.readText(), XCFA::class.java)
            }

            InputType.DSL -> {
                val kotlinEngine: ScriptEngine = ScriptEngineManager().getEngineByExtension("kts")
                kotlinEngine.eval(FileReader(config.inputConfig.input!!)) as XCFA
            }
        }
    } catch (e: Exception) {
        if (config.debugConfig.stacktrace) e.printStackTrace()
        val location = e.stackTrace.filter { it.className.startsWith("hu.bme.mit.theta") }.first().toString()
        logger.write(Logger.Level.RESULT, "Frontend failed! ($location, $e)\n")
        exitProcess(ExitCodes.FRONTEND_FAILED.code)
    }

private fun parseC(input: File, explicitProperty: ErrorDetection, parseContext: ParseContext, logger: Logger,
    uniqueWarningLogger: Logger): XCFA {
    val xcfaFromC = try {
        val stream = FileInputStream(input)
        getXcfaFromC(stream, parseContext, false,
            explicitProperty == ErrorDetection.OVERFLOW, uniqueWarningLogger).first
    } catch (e: Throwable) {
        if (parseContext.arithmetic == ArchitectureConfig.ArithmeticType.efficient) {
            parseContext.arithmetic = ArchitectureConfig.ArithmeticType.bitvector
            logger.write(Logger.Level.INFO, "Retrying parsing with bitvector arithmetic...\n")
            val stream = FileInputStream(input)
            val xcfa = getXcfaFromC(stream, parseContext, false,
                explicitProperty == ErrorDetection.OVERFLOW, uniqueWarningLogger).first
            parseContext.arithmeticTraits.add(ArithmeticTrait.BITWISE)
            xcfa
        } else {
            throw e
        }
    }
    logger.write(Logger.Level.RESULT,
        "Arithmetic: ${parseContext.arithmeticTraits}\n")
    return xcfaFromC
}

private fun parseChc(input: File, chcTransformation: ChcFrontend.ChcTransformation, parseContext: ParseContext,
    logger: Logger, uniqueWarningLogger: Logger): XCFA {
    var chcFrontend: ChcFrontend
    val xcfaBuilder = if (chcTransformation == ChcFrontend.ChcTransformation.PORTFOLIO) { // try forward, fallback to backward
        chcFrontend = ChcFrontend(ChcFrontend.ChcTransformation.FORWARD)
        try {
            chcFrontend.buildXcfa(CharStreams.fromStream(FileInputStream(input)),
                ChcPasses(parseContext, uniqueWarningLogger))
        } catch (e: UnsupportedOperationException) {
            logger.write(Logger.Level.INFO, "Non-linear CHC found, retrying using backward transformation...\n")
            chcFrontend = ChcFrontend(ChcFrontend.ChcTransformation.BACKWARD)
            chcFrontend.buildXcfa(CharStreams.fromStream(FileInputStream(input)),
                ChcPasses(parseContext, uniqueWarningLogger))
        }
    } else {
        chcFrontend = ChcFrontend(chcTransformation)
        chcFrontend.buildXcfa(CharStreams.fromStream(FileInputStream(input)),
            ChcPasses(parseContext, uniqueWarningLogger))
    }
    return xcfaBuilder.build()
}