./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--iio--imu--inv_mpu6050--inv-mpu6050.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--iio--imu--inv_mpu6050--inv-mpu6050.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e6c477e3f3753c58922818522be04156e728e59c50f004b5ce835b763e4b3e35 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-20 00:14:49,736 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 00:14:49,754 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 00:14:49,809 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 00:14:49,810 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 00:14:49,812 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 00:14:49,813 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 00:14:49,822 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 00:14:49,824 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 00:14:49,828 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 00:14:49,829 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 00:14:49,831 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 00:14:49,831 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 00:14:49,848 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 00:14:49,849 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 00:14:49,852 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 00:14:49,853 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 00:14:49,854 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 00:14:49,856 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 00:14:49,861 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 00:14:49,862 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 00:14:49,863 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 00:14:49,864 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 00:14:49,865 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 00:14:49,866 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 00:14:49,872 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 00:14:49,873 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 00:14:49,873 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 00:14:49,874 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 00:14:49,875 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 00:14:49,892 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 00:14:49,893 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 00:14:49,894 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 00:14:49,895 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 00:14:49,896 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 00:14:49,897 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 00:14:49,898 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 00:14:49,898 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 00:14:49,898 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 00:14:49,899 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 00:14:49,900 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 00:14:49,901 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 00:14:49,902 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-20 00:14:49,947 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 00:14:49,948 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 00:14:49,948 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 00:14:49,948 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 00:14:49,949 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 00:14:49,949 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 00:14:49,950 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 00:14:49,950 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 00:14:49,950 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 00:14:49,951 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 00:14:49,951 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 00:14:49,951 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 00:14:49,952 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 00:14:49,952 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 00:14:49,952 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 00:14:49,952 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 00:14:49,953 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 00:14:49,953 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 00:14:49,953 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 00:14:49,953 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 00:14:49,954 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 00:14:49,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 00:14:49,954 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 00:14:49,954 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 00:14:49,954 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 00:14:49,955 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 00:14:49,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 00:14:49,955 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 00:14:49,955 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 00:14:49,956 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 00:14:49,956 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e6c477e3f3753c58922818522be04156e728e59c50f004b5ce835b763e4b3e35 [2022-07-20 00:14:50,227 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 00:14:50,253 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 00:14:50,255 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 00:14:50,256 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 00:14:50,257 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 00:14:50,258 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--iio--imu--inv_mpu6050--inv-mpu6050.ko-entry_point.cil.out.i [2022-07-20 00:14:50,353 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db88ff216/45d4d44994e54c7a9831f64edad7c4ef/FLAGcd740f42f [2022-07-20 00:14:51,470 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 00:14:51,470 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--iio--imu--inv_mpu6050--inv-mpu6050.ko-entry_point.cil.out.i [2022-07-20 00:14:51,530 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db88ff216/45d4d44994e54c7a9831f64edad7c4ef/FLAGcd740f42f [2022-07-20 00:14:51,557 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db88ff216/45d4d44994e54c7a9831f64edad7c4ef [2022-07-20 00:14:51,559 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 00:14:51,560 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 00:14:51,561 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 00:14:51,561 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 00:14:51,564 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 00:14:51,576 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:14:51" (1/1) ... [2022-07-20 00:14:51,577 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d602f2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:14:51, skipping insertion in model container [2022-07-20 00:14:51,577 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:14:51" (1/1) ... [2022-07-20 00:14:51,583 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 00:14:51,730 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 00:14:53,486 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--iio--imu--inv_mpu6050--inv-mpu6050.ko-entry_point.cil.out.i[208384,208397] [2022-07-20 00:14:53,572 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-20 00:14:53,579 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 00:14:53,645 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 00:14:53,886 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckException: Type check failed for C: mgmt_1 = (unsigned int )mgmt_1 & 248U [4711] at de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) at de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckHelper.typeCheckBinaryExpression(TypeCheckHelper.java:207) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.constructBinaryExpression(ExpressionFactory.java:597) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.newBinaryExpression(ExpressionFactory.java:132) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:483) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-20 00:14:53,891 INFO L158 Benchmark]: Toolchain (without parser) took 2329.66ms. Allocated memory was 90.2MB in the beginning and 123.7MB in the end (delta: 33.6MB). Free memory was 61.6MB in the beginning and 74.4MB in the end (delta: -12.9MB). Peak memory consumption was 57.8MB. Max. memory is 16.1GB. [2022-07-20 00:14:53,892 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 90.2MB. Free memory is still 65.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-20 00:14:53,893 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2328.02ms. Allocated memory was 90.2MB in the beginning and 123.7MB in the end (delta: 33.6MB). Free memory was 61.4MB in the beginning and 74.4MB in the end (delta: -13.1MB). Peak memory consumption was 55.7MB. Max. memory is 16.1GB. [2022-07-20 00:14:53,894 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 90.2MB. Free memory is still 65.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2328.02ms. Allocated memory was 90.2MB in the beginning and 123.7MB in the end (delta: 33.6MB). Free memory was 61.4MB in the beginning and 74.4MB in the end (delta: -13.1MB). Peak memory consumption was 55.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: mgmt_1 = (unsigned int )mgmt_1 & 248U [4711] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: mgmt_1 = (unsigned int )mgmt_1 & 248U [4711]: de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--iio--imu--inv_mpu6050--inv-mpu6050.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e6c477e3f3753c58922818522be04156e728e59c50f004b5ce835b763e4b3e35 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-20 00:14:56,981 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 00:14:56,984 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 00:14:57,058 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 00:14:57,059 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 00:14:57,060 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 00:14:57,063 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 00:14:57,066 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 00:14:57,067 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 00:14:57,072 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 00:14:57,072 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 00:14:57,076 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 00:14:57,077 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 00:14:57,078 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 00:14:57,079 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 00:14:57,095 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 00:14:57,096 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 00:14:57,098 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 00:14:57,099 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 00:14:57,104 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 00:14:57,105 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 00:14:57,106 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 00:14:57,108 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 00:14:57,109 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 00:14:57,110 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 00:14:57,116 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 00:14:57,116 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 00:14:57,117 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 00:14:57,117 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 00:14:57,118 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 00:14:57,119 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 00:14:57,128 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 00:14:57,130 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 00:14:57,131 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 00:14:57,132 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 00:14:57,133 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 00:14:57,133 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 00:14:57,134 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 00:14:57,134 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 00:14:57,135 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 00:14:57,135 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 00:14:57,137 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 00:14:57,144 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-20 00:14:57,192 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 00:14:57,207 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 00:14:57,208 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 00:14:57,208 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 00:14:57,209 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 00:14:57,209 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 00:14:57,210 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 00:14:57,211 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 00:14:57,211 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 00:14:57,212 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 00:14:57,212 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 00:14:57,213 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 00:14:57,213 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 00:14:57,213 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 00:14:57,213 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-20 00:14:57,214 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-20 00:14:57,214 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-20 00:14:57,214 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 00:14:57,214 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 00:14:57,214 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 00:14:57,215 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 00:14:57,215 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 00:14:57,215 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 00:14:57,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 00:14:57,216 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 00:14:57,216 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 00:14:57,216 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 00:14:57,216 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-20 00:14:57,216 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-20 00:14:57,216 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 00:14:57,217 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 00:14:57,217 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 00:14:57,217 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-20 00:14:57,217 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e6c477e3f3753c58922818522be04156e728e59c50f004b5ce835b763e4b3e35 [2022-07-20 00:14:57,778 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 00:14:57,813 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 00:14:57,831 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 00:14:57,833 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 00:14:57,834 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 00:14:57,836 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--iio--imu--inv_mpu6050--inv-mpu6050.ko-entry_point.cil.out.i [2022-07-20 00:14:57,932 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d8480a89/598f1a6dcf3b42e09132470811235c44/FLAG596789e5d [2022-07-20 00:14:59,181 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 00:14:59,182 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--iio--imu--inv_mpu6050--inv-mpu6050.ko-entry_point.cil.out.i [2022-07-20 00:14:59,234 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d8480a89/598f1a6dcf3b42e09132470811235c44/FLAG596789e5d [2022-07-20 00:14:59,499 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d8480a89/598f1a6dcf3b42e09132470811235c44 [2022-07-20 00:14:59,502 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 00:14:59,503 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 00:14:59,510 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 00:14:59,510 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 00:14:59,513 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 00:14:59,515 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:14:59" (1/1) ... [2022-07-20 00:14:59,516 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19781933 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:14:59, skipping insertion in model container [2022-07-20 00:14:59,527 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:14:59" (1/1) ... [2022-07-20 00:14:59,533 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 00:14:59,707 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 00:15:01,564 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--iio--imu--inv_mpu6050--inv-mpu6050.ko-entry_point.cil.out.i[208384,208397] [2022-07-20 00:15:01,629 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-20 00:15:01,648 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 00:15:01,712 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-20 00:15:01,807 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 00:15:02,164 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--iio--imu--inv_mpu6050--inv-mpu6050.ko-entry_point.cil.out.i[208384,208397] [2022-07-20 00:15:02,185 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-20 00:15:02,215 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 00:15:02,271 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 00:15:02,572 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--iio--imu--inv_mpu6050--inv-mpu6050.ko-entry_point.cil.out.i[208384,208397] [2022-07-20 00:15:02,577 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-20 00:15:02,579 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 00:15:02,755 INFO L208 MainTranslator]: Completed translation [2022-07-20 00:15:02,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:15:02 WrapperNode [2022-07-20 00:15:02,756 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 00:15:02,758 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 00:15:02,758 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 00:15:02,758 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 00:15:02,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:15:02" (1/1) ... [2022-07-20 00:15:02,839 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:15:02" (1/1) ... [2022-07-20 00:15:02,999 INFO L137 Inliner]: procedures = 227, calls = 1352, calls flagged for inlining = 108, calls inlined = 105, statements flattened = 3540 [2022-07-20 00:15:03,000 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 00:15:03,001 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 00:15:03,001 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 00:15:03,001 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 00:15:03,008 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:15:02" (1/1) ... [2022-07-20 00:15:03,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:15:02" (1/1) ... [2022-07-20 00:15:03,044 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:15:02" (1/1) ... [2022-07-20 00:15:03,045 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:15:02" (1/1) ... [2022-07-20 00:15:03,166 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:15:02" (1/1) ... [2022-07-20 00:15:03,220 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:15:02" (1/1) ... [2022-07-20 00:15:03,295 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:15:02" (1/1) ... [2022-07-20 00:15:03,336 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 00:15:03,337 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 00:15:03,338 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 00:15:03,338 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 00:15:03,339 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:15:02" (1/1) ... [2022-07-20 00:15:03,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 00:15:03,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 00:15:03,405 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-20 00:15:03,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-20 00:15:03,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-20 00:15:03,496 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-20 00:15:03,496 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-20 00:15:03,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-20 00:15:03,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-20 00:15:03,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-20 00:15:03,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-20 00:15:03,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-20 00:15:03,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-20 00:15:03,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-20 00:15:03,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-20 00:15:03,510 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-20 00:15:03,511 INFO L130 BoogieDeclarations]: Found specification of procedure inv_mpu6050_sensor_show [2022-07-20 00:15:03,511 INFO L138 BoogieDeclarations]: Found implementation of procedure inv_mpu6050_sensor_show [2022-07-20 00:15:03,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-20 00:15:03,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-20 00:15:03,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2022-07-20 00:15:03,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2022-07-20 00:15:03,512 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-20 00:15:03,512 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-20 00:15:03,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-20 00:15:03,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-20 00:15:03,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-20 00:15:03,512 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-20 00:15:03,512 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-20 00:15:03,513 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-20 00:15:03,513 INFO L130 BoogieDeclarations]: Found specification of procedure inv_mpu_suspend [2022-07-20 00:15:03,513 INFO L138 BoogieDeclarations]: Found implementation of procedure inv_mpu_suspend [2022-07-20 00:15:03,513 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-20 00:15:03,514 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-20 00:15:03,514 INFO L130 BoogieDeclarations]: Found specification of procedure iio_trigger_notify_done [2022-07-20 00:15:03,514 INFO L138 BoogieDeclarations]: Found implementation of procedure iio_trigger_notify_done [2022-07-20 00:15:03,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-20 00:15:03,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-20 00:15:03,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-20 00:15:03,515 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-20 00:15:03,515 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-20 00:15:03,515 INFO L130 BoogieDeclarations]: Found specification of procedure inv_mpu6050_irq_handler [2022-07-20 00:15:03,515 INFO L138 BoogieDeclarations]: Found implementation of procedure inv_mpu6050_irq_handler [2022-07-20 00:15:03,515 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-20 00:15:03,516 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-20 00:15:03,516 INFO L130 BoogieDeclarations]: Found specification of procedure iio_triggered_buffer_cleanup [2022-07-20 00:15:03,516 INFO L138 BoogieDeclarations]: Found implementation of procedure iio_triggered_buffer_cleanup [2022-07-20 00:15:03,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-20 00:15:03,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-20 00:15:03,517 INFO L130 BoogieDeclarations]: Found specification of procedure inv_attr_show [2022-07-20 00:15:03,517 INFO L138 BoogieDeclarations]: Found implementation of procedure inv_attr_show [2022-07-20 00:15:03,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-20 00:15:03,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-20 00:15:03,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-20 00:15:03,518 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-07-20 00:15:03,518 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-07-20 00:15:03,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-20 00:15:03,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-20 00:15:03,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-20 00:15:03,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-20 00:15:03,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-20 00:15:03,520 INFO L130 BoogieDeclarations]: Found specification of procedure inv_mpu6050_remove_trigger [2022-07-20 00:15:03,520 INFO L138 BoogieDeclarations]: Found implementation of procedure inv_mpu6050_remove_trigger [2022-07-20 00:15:03,520 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-20 00:15:03,520 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-20 00:15:03,521 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-20 00:15:03,521 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-20 00:15:03,521 INFO L130 BoogieDeclarations]: Found specification of procedure inv_mpu6050_read_fifo [2022-07-20 00:15:03,521 INFO L138 BoogieDeclarations]: Found implementation of procedure inv_mpu6050_read_fifo [2022-07-20 00:15:03,522 INFO L130 BoogieDeclarations]: Found specification of procedure inv_mpu6050_set_power_itg [2022-07-20 00:15:03,522 INFO L138 BoogieDeclarations]: Found implementation of procedure inv_mpu6050_set_power_itg [2022-07-20 00:15:03,522 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-07-20 00:15:03,522 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-07-20 00:15:03,522 INFO L130 BoogieDeclarations]: Found specification of procedure __be16_to_cpup [2022-07-20 00:15:03,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __be16_to_cpup [2022-07-20 00:15:03,577 INFO L130 BoogieDeclarations]: Found specification of procedure inv_mpu_resume [2022-07-20 00:15:03,578 INFO L138 BoogieDeclarations]: Found implementation of procedure inv_mpu_resume [2022-07-20 00:15:03,578 INFO L130 BoogieDeclarations]: Found specification of procedure inv_mpu6050_switch_engine [2022-07-20 00:15:03,578 INFO L138 BoogieDeclarations]: Found implementation of procedure inv_mpu6050_switch_engine [2022-07-20 00:15:03,578 INFO L130 BoogieDeclarations]: Found specification of procedure to_acpi_node [2022-07-20 00:15:03,578 INFO L138 BoogieDeclarations]: Found implementation of procedure to_acpi_node [2022-07-20 00:15:03,578 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_clientdata [2022-07-20 00:15:03,578 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_clientdata [2022-07-20 00:15:03,579 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-20 00:15:03,580 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-20 00:15:03,580 INFO L130 BoogieDeclarations]: Found specification of procedure iio_priv [2022-07-20 00:15:03,580 INFO L138 BoogieDeclarations]: Found implementation of procedure iio_priv [2022-07-20 00:15:03,580 INFO L130 BoogieDeclarations]: Found specification of procedure iio_device_unregister [2022-07-20 00:15:03,580 INFO L138 BoogieDeclarations]: Found implementation of procedure iio_device_unregister [2022-07-20 00:15:03,581 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_2 [2022-07-20 00:15:03,581 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_2 [2022-07-20 00:15:03,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-20 00:15:03,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-20 00:15:03,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-20 00:15:03,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-20 00:15:03,582 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-20 00:15:03,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-20 00:15:03,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-20 00:15:03,582 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-20 00:15:03,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-20 00:15:03,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 00:15:03,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-20 00:15:03,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-20 00:15:03,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-20 00:15:03,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-20 00:15:03,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-20 00:15:03,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-20 00:15:03,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2022-07-20 00:15:03,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2022-07-20 00:15:03,584 INFO L130 BoogieDeclarations]: Found specification of procedure inv_mpu6050_validate_trigger [2022-07-20 00:15:03,584 INFO L138 BoogieDeclarations]: Found implementation of procedure inv_mpu6050_validate_trigger [2022-07-20 00:15:03,584 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_del_mux_adapter [2022-07-20 00:15:03,585 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_del_mux_adapter [2022-07-20 00:15:03,587 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_i2c_block_data [2022-07-20 00:15:03,587 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_i2c_block_data [2022-07-20 00:15:03,587 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_iio_dev [2022-07-20 00:15:03,587 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_iio_dev [2022-07-20 00:15:03,588 INFO L130 BoogieDeclarations]: Found specification of procedure inv_reset_fifo [2022-07-20 00:15:03,588 INFO L138 BoogieDeclarations]: Found implementation of procedure inv_reset_fifo [2022-07-20 00:15:03,588 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-07-20 00:15:03,589 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-07-20 00:15:03,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-20 00:15:03,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 00:15:03,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 00:15:03,592 INFO L130 BoogieDeclarations]: Found specification of procedure inv_mpu6050_write_reg [2022-07-20 00:15:03,592 INFO L138 BoogieDeclarations]: Found implementation of procedure inv_mpu6050_write_reg [2022-07-20 00:15:04,324 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 00:15:04,327 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 00:15:04,491 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-20 00:16:17,403 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 00:16:17,424 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 00:16:17,424 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-20 00:16:17,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 12:16:17 BoogieIcfgContainer [2022-07-20 00:16:17,429 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 00:16:17,432 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 00:16:17,432 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 00:16:17,435 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 00:16:17,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 12:14:59" (1/3) ... [2022-07-20 00:16:17,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1304c41b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 12:16:17, skipping insertion in model container [2022-07-20 00:16:17,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:15:02" (2/3) ... [2022-07-20 00:16:17,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1304c41b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 12:16:17, skipping insertion in model container [2022-07-20 00:16:17,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 12:16:17" (3/3) ... [2022-07-20 00:16:17,438 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--iio--imu--inv_mpu6050--inv-mpu6050.ko-entry_point.cil.out.i [2022-07-20 00:16:17,451 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 00:16:17,451 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-20 00:16:17,535 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 00:16:17,541 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@32c27865, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3692009c [2022-07-20 00:16:17,541 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-20 00:16:17,550 INFO L276 IsEmpty]: Start isEmpty. Operand has 1037 states, 786 states have (on average 1.4287531806615776) internal successors, (1123), 801 states have internal predecessors, (1123), 205 states have call successors, (205), 45 states have call predecessors, (205), 44 states have return successors, (195), 195 states have call predecessors, (195), 195 states have call successors, (195) [2022-07-20 00:16:17,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2022-07-20 00:16:17,577 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:16:17,578 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:16:17,579 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:16:17,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:16:17,584 INFO L85 PathProgramCache]: Analyzing trace with hash 175591800, now seen corresponding path program 1 times [2022-07-20 00:16:17,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:16:17,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [823793748] [2022-07-20 00:16:17,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:16:17,603 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:16:17,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:16:17,607 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 00:16:17,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-20 00:16:19,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:16:19,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 2830 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-20 00:16:19,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:16:19,975 INFO L134 CoverageAnalysis]: Checked inductivity of 1560 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 1490 trivial. 0 not checked. [2022-07-20 00:16:19,976 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:16:19,977 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:16:19,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [823793748] [2022-07-20 00:16:19,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [823793748] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:16:19,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:16:19,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 00:16:19,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498160868] [2022-07-20 00:16:19,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:16:19,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-20 00:16:19,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:16:20,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-20 00:16:20,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-20 00:16:20,015 INFO L87 Difference]: Start difference. First operand has 1037 states, 786 states have (on average 1.4287531806615776) internal successors, (1123), 801 states have internal predecessors, (1123), 205 states have call successors, (205), 45 states have call predecessors, (205), 44 states have return successors, (195), 195 states have call predecessors, (195), 195 states have call successors, (195) Second operand has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-20 00:16:20,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:16:20,131 INFO L93 Difference]: Finished difference Result 2069 states and 3070 transitions. [2022-07-20 00:16:20,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-20 00:16:20,139 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 317 [2022-07-20 00:16:20,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:16:20,165 INFO L225 Difference]: With dead ends: 2069 [2022-07-20 00:16:20,166 INFO L226 Difference]: Without dead ends: 1020 [2022-07-20 00:16:20,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-20 00:16:20,186 INFO L413 NwaCegarLoop]: 1519 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1519 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 00:16:20,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1519 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 00:16:20,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states. [2022-07-20 00:16:20,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 1020. [2022-07-20 00:16:20,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1020 states, 781 states have (on average 1.4148527528809218) internal successors, (1105), 784 states have internal predecessors, (1105), 195 states have call successors, (195), 44 states have call predecessors, (195), 43 states have return successors, (194), 194 states have call predecessors, (194), 194 states have call successors, (194) [2022-07-20 00:16:20,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1020 states to 1020 states and 1494 transitions. [2022-07-20 00:16:20,308 INFO L78 Accepts]: Start accepts. Automaton has 1020 states and 1494 transitions. Word has length 317 [2022-07-20 00:16:20,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:16:20,310 INFO L495 AbstractCegarLoop]: Abstraction has 1020 states and 1494 transitions. [2022-07-20 00:16:20,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-20 00:16:20,311 INFO L276 IsEmpty]: Start isEmpty. Operand 1020 states and 1494 transitions. [2022-07-20 00:16:20,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2022-07-20 00:16:20,321 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:16:20,322 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:16:20,406 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-20 00:16:20,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:16:20,536 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:16:20,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:16:20,536 INFO L85 PathProgramCache]: Analyzing trace with hash -464706278, now seen corresponding path program 1 times [2022-07-20 00:16:20,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:16:20,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1926599317] [2022-07-20 00:16:20,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:16:20,539 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:16:20,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:16:20,542 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 00:16:20,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-20 00:16:22,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:16:22,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 2830 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-20 00:16:22,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:16:23,605 INFO L134 CoverageAnalysis]: Checked inductivity of 1560 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 1524 trivial. 0 not checked. [2022-07-20 00:16:23,605 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:16:23,605 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:16:23,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1926599317] [2022-07-20 00:16:23,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1926599317] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:16:23,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:16:23,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 00:16:23,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132781123] [2022-07-20 00:16:23,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:16:23,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 00:16:23,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:16:23,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 00:16:23,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 00:16:23,609 INFO L87 Difference]: Start difference. First operand 1020 states and 1494 transitions. Second operand has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-07-20 00:16:25,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:16:25,059 INFO L93 Difference]: Finished difference Result 2012 states and 2951 transitions. [2022-07-20 00:16:25,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 00:16:25,059 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 317 [2022-07-20 00:16:25,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:16:25,066 INFO L225 Difference]: With dead ends: 2012 [2022-07-20 00:16:25,066 INFO L226 Difference]: Without dead ends: 1021 [2022-07-20 00:16:25,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-20 00:16:25,071 INFO L413 NwaCegarLoop]: 1485 mSDtfsCounter, 6 mSDsluCounter, 5918 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 7403 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-20 00:16:25,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 7403 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-20 00:16:25,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1021 states. [2022-07-20 00:16:25,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1021 to 1021. [2022-07-20 00:16:25,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1021 states, 782 states have (on average 1.4143222506393862) internal successors, (1106), 785 states have internal predecessors, (1106), 195 states have call successors, (195), 44 states have call predecessors, (195), 43 states have return successors, (194), 194 states have call predecessors, (194), 194 states have call successors, (194) [2022-07-20 00:16:25,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1495 transitions. [2022-07-20 00:16:25,114 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1495 transitions. Word has length 317 [2022-07-20 00:16:25,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:16:25,118 INFO L495 AbstractCegarLoop]: Abstraction has 1021 states and 1495 transitions. [2022-07-20 00:16:25,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-07-20 00:16:25,118 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1495 transitions. [2022-07-20 00:16:25,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2022-07-20 00:16:25,126 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:16:25,126 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:16:25,212 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-20 00:16:25,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:16:25,348 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:16:25,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:16:25,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1919425372, now seen corresponding path program 1 times [2022-07-20 00:16:25,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:16:25,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [120381346] [2022-07-20 00:16:25,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:16:25,351 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:16:25,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:16:25,352 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 00:16:25,353 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-20 00:16:27,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:16:27,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 2885 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-20 00:16:27,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:16:28,526 INFO L134 CoverageAnalysis]: Checked inductivity of 1595 backedges. 48 proven. 1 refuted. 0 times theorem prover too weak. 1546 trivial. 0 not checked. [2022-07-20 00:16:28,528 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 00:16:31,346 INFO L134 CoverageAnalysis]: Checked inductivity of 1595 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 1554 trivial. 0 not checked. [2022-07-20 00:16:31,346 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:16:31,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [120381346] [2022-07-20 00:16:31,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [120381346] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 00:16:31,349 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 00:16:31,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-07-20 00:16:31,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695382003] [2022-07-20 00:16:31,351 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 00:16:31,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-20 00:16:31,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:16:31,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-20 00:16:31,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-07-20 00:16:31,355 INFO L87 Difference]: Start difference. First operand 1021 states and 1495 transitions. Second operand has 11 states, 9 states have (on average 8.555555555555555) internal successors, (77), 11 states have internal predecessors, (77), 4 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2022-07-20 00:16:34,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:16:34,377 INFO L93 Difference]: Finished difference Result 2024 states and 2967 transitions. [2022-07-20 00:16:34,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-20 00:16:34,378 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 8.555555555555555) internal successors, (77), 11 states have internal predecessors, (77), 4 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 322 [2022-07-20 00:16:34,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:16:34,385 INFO L225 Difference]: With dead ends: 2024 [2022-07-20 00:16:34,385 INFO L226 Difference]: Without dead ends: 1037 [2022-07-20 00:16:34,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 646 GetRequests, 633 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2022-07-20 00:16:34,390 INFO L413 NwaCegarLoop]: 1488 mSDtfsCounter, 12 mSDsluCounter, 7398 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 8886 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-20 00:16:34,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 8886 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-20 00:16:34,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1037 states. [2022-07-20 00:16:34,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1037 to 1037. [2022-07-20 00:16:34,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1037 states, 793 states have (on average 1.4098360655737705) internal successors, (1118), 796 states have internal predecessors, (1118), 197 states have call successors, (197), 47 states have call predecessors, (197), 46 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) [2022-07-20 00:16:34,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1037 states to 1037 states and 1511 transitions. [2022-07-20 00:16:34,421 INFO L78 Accepts]: Start accepts. Automaton has 1037 states and 1511 transitions. Word has length 322 [2022-07-20 00:16:34,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:16:34,422 INFO L495 AbstractCegarLoop]: Abstraction has 1037 states and 1511 transitions. [2022-07-20 00:16:34,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 8.555555555555555) internal successors, (77), 11 states have internal predecessors, (77), 4 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2022-07-20 00:16:34,422 INFO L276 IsEmpty]: Start isEmpty. Operand 1037 states and 1511 transitions. [2022-07-20 00:16:34,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2022-07-20 00:16:34,427 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:16:34,428 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 10, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:16:34,504 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-20 00:16:34,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:16:34,641 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:16:34,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:16:34,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1749695910, now seen corresponding path program 2 times [2022-07-20 00:16:34,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:16:34,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1911779867] [2022-07-20 00:16:34,645 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-20 00:16:34,645 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:16:34,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:16:34,650 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 00:16:34,651 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-20 00:16:36,652 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-20 00:16:36,652 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-20 00:16:36,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 2020 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 00:16:36,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:16:37,268 INFO L134 CoverageAnalysis]: Checked inductivity of 1655 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1655 trivial. 0 not checked. [2022-07-20 00:16:37,268 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:16:37,269 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:16:37,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1911779867] [2022-07-20 00:16:37,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1911779867] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:16:37,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:16:37,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 00:16:37,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789361256] [2022-07-20 00:16:37,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:16:37,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 00:16:37,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:16:37,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 00:16:37,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 00:16:37,270 INFO L87 Difference]: Start difference. First operand 1037 states and 1511 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2022-07-20 00:16:39,421 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:16:40,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:16:40,727 INFO L93 Difference]: Finished difference Result 2979 states and 4355 transitions. [2022-07-20 00:16:40,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 00:16:40,728 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 327 [2022-07-20 00:16:40,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:16:40,748 INFO L225 Difference]: With dead ends: 2979 [2022-07-20 00:16:40,748 INFO L226 Difference]: Without dead ends: 1995 [2022-07-20 00:16:40,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 00:16:40,769 INFO L413 NwaCegarLoop]: 1678 mSDtfsCounter, 1386 mSDsluCounter, 1480 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1386 SdHoareTripleChecker+Valid, 3158 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-07-20 00:16:40,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1386 Valid, 3158 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-07-20 00:16:40,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1995 states. [2022-07-20 00:16:40,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1995 to 1995. [2022-07-20 00:16:40,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1995 states, 1539 states have (on average 1.4197530864197532) internal successors, (2185), 1545 states have internal predecessors, (2185), 365 states have call successors, (365), 91 states have call predecessors, (365), 90 states have return successors, (364), 364 states have call predecessors, (364), 364 states have call successors, (364) [2022-07-20 00:16:40,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1995 states to 1995 states and 2914 transitions. [2022-07-20 00:16:40,897 INFO L78 Accepts]: Start accepts. Automaton has 1995 states and 2914 transitions. Word has length 327 [2022-07-20 00:16:40,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:16:40,900 INFO L495 AbstractCegarLoop]: Abstraction has 1995 states and 2914 transitions. [2022-07-20 00:16:40,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2022-07-20 00:16:40,900 INFO L276 IsEmpty]: Start isEmpty. Operand 1995 states and 2914 transitions. [2022-07-20 00:16:40,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2022-07-20 00:16:40,922 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:16:40,922 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 10, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:16:41,075 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-07-20 00:16:41,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:16:41,137 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:16:41,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:16:41,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1048183032, now seen corresponding path program 1 times [2022-07-20 00:16:41,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:16:41,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1076126100] [2022-07-20 00:16:41,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:16:41,141 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:16:41,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:16:41,156 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 00:16:41,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-20 00:16:44,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:16:44,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 2949 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-20 00:16:44,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:16:46,308 INFO L134 CoverageAnalysis]: Checked inductivity of 1655 backedges. 68 proven. 3 refuted. 0 times theorem prover too weak. 1584 trivial. 0 not checked. [2022-07-20 00:16:46,308 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 00:16:52,551 INFO L134 CoverageAnalysis]: Checked inductivity of 1655 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 1592 trivial. 0 not checked. [2022-07-20 00:16:52,552 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:16:52,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1076126100] [2022-07-20 00:16:52,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1076126100] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 00:16:52,554 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 00:16:52,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-07-20 00:16:52,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202968474] [2022-07-20 00:16:52,559 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 00:16:52,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-20 00:16:52,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:16:52,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-20 00:16:52,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-07-20 00:16:52,561 INFO L87 Difference]: Start difference. First operand 1995 states and 2914 transitions. Second operand has 13 states, 11 states have (on average 7.454545454545454) internal successors, (82), 13 states have internal predecessors, (82), 4 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2022-07-20 00:16:59,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:16:59,728 INFO L93 Difference]: Finished difference Result 3968 states and 5797 transitions. [2022-07-20 00:16:59,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-20 00:16:59,729 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 7.454545454545454) internal successors, (82), 13 states have internal predecessors, (82), 4 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 330 [2022-07-20 00:16:59,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:16:59,754 INFO L225 Difference]: With dead ends: 3968 [2022-07-20 00:16:59,754 INFO L226 Difference]: Without dead ends: 1997 [2022-07-20 00:16:59,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 663 GetRequests, 647 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2022-07-20 00:16:59,776 INFO L413 NwaCegarLoop]: 1489 mSDtfsCounter, 20 mSDsluCounter, 10365 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 11854 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-07-20 00:16:59,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 11854 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-07-20 00:16:59,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1997 states. [2022-07-20 00:16:59,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1997 to 1997. [2022-07-20 00:16:59,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1997 states, 1541 states have (on average 1.419208306294614) internal successors, (2187), 1547 states have internal predecessors, (2187), 365 states have call successors, (365), 91 states have call predecessors, (365), 90 states have return successors, (364), 364 states have call predecessors, (364), 364 states have call successors, (364) [2022-07-20 00:16:59,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1997 states to 1997 states and 2916 transitions. [2022-07-20 00:16:59,919 INFO L78 Accepts]: Start accepts. Automaton has 1997 states and 2916 transitions. Word has length 330 [2022-07-20 00:16:59,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:16:59,920 INFO L495 AbstractCegarLoop]: Abstraction has 1997 states and 2916 transitions. [2022-07-20 00:16:59,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 7.454545454545454) internal successors, (82), 13 states have internal predecessors, (82), 4 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2022-07-20 00:16:59,921 INFO L276 IsEmpty]: Start isEmpty. Operand 1997 states and 2916 transitions. [2022-07-20 00:16:59,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2022-07-20 00:16:59,926 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:16:59,926 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:17:00,087 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-20 00:17:00,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:17:00,144 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:17:00,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:17:00,144 INFO L85 PathProgramCache]: Analyzing trace with hash -472066826, now seen corresponding path program 2 times [2022-07-20 00:17:00,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:17:00,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1359202177] [2022-07-20 00:17:00,149 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-20 00:17:00,149 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:17:00,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:17:00,159 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 00:17:00,161 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-20 00:17:02,754 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-20 00:17:02,754 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-20 00:17:02,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 2029 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 00:17:02,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:17:20,121 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2022-07-20 00:17:20,121 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:17:20,121 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:17:20,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1359202177] [2022-07-20 00:17:20,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1359202177] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:17:20,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:17:20,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 00:17:20,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824627742] [2022-07-20 00:17:20,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:17:20,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 00:17:20,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:17:20,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 00:17:20,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 00:17:20,123 INFO L87 Difference]: Start difference. First operand 1997 states and 2916 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2022-07-20 00:17:20,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:17:20,452 INFO L93 Difference]: Finished difference Result 3941 states and 5761 transitions. [2022-07-20 00:17:20,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 00:17:20,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 335 [2022-07-20 00:17:20,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:17:20,489 INFO L225 Difference]: With dead ends: 3941 [2022-07-20 00:17:20,503 INFO L226 Difference]: Without dead ends: 3934 [2022-07-20 00:17:20,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 333 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 00:17:20,509 INFO L413 NwaCegarLoop]: 1680 mSDtfsCounter, 1386 mSDsluCounter, 1430 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1386 SdHoareTripleChecker+Valid, 3110 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 00:17:20,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1386 Valid, 3110 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 00:17:20,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3934 states. [2022-07-20 00:17:20,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3934 to 3934. [2022-07-20 00:17:20,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3934 states, 3048 states have (on average 1.4229002624671916) internal successors, (4337), 3060 states have internal predecessors, (4337), 707 states have call successors, (707), 179 states have call predecessors, (707), 178 states have return successors, (708), 706 states have call predecessors, (708), 706 states have call successors, (708) [2022-07-20 00:17:20,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3934 states to 3934 states and 5752 transitions. [2022-07-20 00:17:20,763 INFO L78 Accepts]: Start accepts. Automaton has 3934 states and 5752 transitions. Word has length 335 [2022-07-20 00:17:20,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:17:20,763 INFO L495 AbstractCegarLoop]: Abstraction has 3934 states and 5752 transitions. [2022-07-20 00:17:20,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2022-07-20 00:17:20,764 INFO L276 IsEmpty]: Start isEmpty. Operand 3934 states and 5752 transitions. [2022-07-20 00:17:20,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2022-07-20 00:17:20,795 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:17:20,796 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:17:20,935 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-20 00:17:21,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:17:21,016 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:17:21,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:17:21,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1777899120, now seen corresponding path program 1 times [2022-07-20 00:17:21,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:17:21,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1329724565] [2022-07-20 00:17:21,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:17:21,021 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:17:21,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:17:21,024 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 00:17:21,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-20 00:17:24,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:17:25,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 3782 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-20 00:17:25,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:17:27,502 INFO L134 CoverageAnalysis]: Checked inductivity of 1765 backedges. 96 proven. 6 refuted. 0 times theorem prover too weak. 1663 trivial. 0 not checked. [2022-07-20 00:17:27,502 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 00:17:36,209 INFO L134 CoverageAnalysis]: Checked inductivity of 1765 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 1671 trivial. 0 not checked. [2022-07-20 00:17:36,209 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:17:36,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1329724565] [2022-07-20 00:17:36,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1329724565] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 00:17:36,210 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 00:17:36,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-07-20 00:17:36,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692484547] [2022-07-20 00:17:36,210 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 00:17:36,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-20 00:17:36,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:17:36,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-20 00:17:36,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-07-20 00:17:36,212 INFO L87 Difference]: Start difference. First operand 3934 states and 5752 transitions. Second operand has 15 states, 13 states have (on average 14.0) internal successors, (182), 15 states have internal predecessors, (182), 4 states have call successors, (55), 2 states have call predecessors, (55), 5 states have return successors, (55), 4 states have call predecessors, (55), 4 states have call successors, (55) [2022-07-20 00:17:43,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:17:43,604 INFO L93 Difference]: Finished difference Result 7852 states and 11481 transitions. [2022-07-20 00:17:43,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-20 00:17:43,605 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 14.0) internal successors, (182), 15 states have internal predecessors, (182), 4 states have call successors, (55), 2 states have call predecessors, (55), 5 states have return successors, (55), 4 states have call predecessors, (55), 4 states have call successors, (55) Word has length 451 [2022-07-20 00:17:43,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:17:43,624 INFO L225 Difference]: With dead ends: 7852 [2022-07-20 00:17:43,625 INFO L226 Difference]: Without dead ends: 3938 [2022-07-20 00:17:43,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 905 GetRequests, 887 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2022-07-20 00:17:43,639 INFO L413 NwaCegarLoop]: 1489 mSDtfsCounter, 21 mSDsluCounter, 10375 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 11864 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-07-20 00:17:43,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 11864 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-07-20 00:17:43,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3938 states. [2022-07-20 00:17:43,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3938 to 3938. [2022-07-20 00:17:43,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3938 states, 3052 states have (on average 1.422346002621232) internal successors, (4341), 3064 states have internal predecessors, (4341), 707 states have call successors, (707), 179 states have call predecessors, (707), 178 states have return successors, (708), 706 states have call predecessors, (708), 706 states have call successors, (708) [2022-07-20 00:17:43,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3938 states to 3938 states and 5756 transitions. [2022-07-20 00:17:43,768 INFO L78 Accepts]: Start accepts. Automaton has 3938 states and 5756 transitions. Word has length 451 [2022-07-20 00:17:43,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:17:43,769 INFO L495 AbstractCegarLoop]: Abstraction has 3938 states and 5756 transitions. [2022-07-20 00:17:43,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 14.0) internal successors, (182), 15 states have internal predecessors, (182), 4 states have call successors, (55), 2 states have call predecessors, (55), 5 states have return successors, (55), 4 states have call predecessors, (55), 4 states have call successors, (55) [2022-07-20 00:17:43,770 INFO L276 IsEmpty]: Start isEmpty. Operand 3938 states and 5756 transitions. [2022-07-20 00:17:43,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2022-07-20 00:17:43,781 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:17:43,782 INFO L195 NwaCegarLoop]: trace histogram [20, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:17:43,908 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-20 00:17:44,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:17:44,004 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:17:44,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:17:44,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1657615186, now seen corresponding path program 2 times [2022-07-20 00:17:44,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:17:44,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [810277204] [2022-07-20 00:17:44,008 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-20 00:17:44,008 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:17:44,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:17:44,018 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 00:17:44,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process