./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8187--rtl8187.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8187--rtl8187.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 f81d244572c9a77eee348ee40397ea85f2dfad22a6619aa4d31ee137ff878aa4 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 12:40:29,907 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 12:40:29,909 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 12:40:29,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 12:40:29,951 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 12:40:29,952 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 12:40:29,954 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 12:40:29,956 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 12:40:29,957 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 12:40:29,961 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 12:40:29,962 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 12:40:29,964 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 12:40:29,964 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 12:40:29,966 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 12:40:29,967 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 12:40:29,969 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 12:40:29,970 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 12:40:29,971 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 12:40:29,973 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 12:40:29,978 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 12:40:29,981 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 12:40:29,981 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 12:40:29,982 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 12:40:29,983 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 12:40:29,984 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 12:40:29,991 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 12:40:29,991 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 12:40:29,991 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 12:40:29,992 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 12:40:29,993 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 12:40:29,994 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 12:40:29,994 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 12:40:29,995 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 12:40:29,996 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 12:40:29,996 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 12:40:29,997 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 12:40:29,997 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 12:40:29,998 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 12:40:29,998 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 12:40:29,998 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 12:40:29,999 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 12:40:30,000 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 12:40:30,002 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 12:40:30,031 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 12:40:30,032 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 12:40:30,032 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 12:40:30,032 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 12:40:30,033 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 12:40:30,033 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 12:40:30,034 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 12:40:30,034 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 12:40:30,034 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 12:40:30,035 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 12:40:30,035 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 12:40:30,035 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 12:40:30,036 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 12:40:30,036 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 12:40:30,036 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 12:40:30,036 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 12:40:30,036 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 12:40:30,037 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 12:40:30,037 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 12:40:30,037 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 12:40:30,037 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 12:40:30,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 12:40:30,038 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 12:40:30,038 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 12:40:30,038 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 12:40:30,038 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 12:40:30,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 12:40:30,039 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 12:40:30,039 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 12:40:30,039 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 12:40:30,039 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f81d244572c9a77eee348ee40397ea85f2dfad22a6619aa4d31ee137ff878aa4 [2022-07-12 12:40:30,257 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 12:40:30,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 12:40:30,279 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 12:40:30,280 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 12:40:30,281 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 12:40:30,282 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8187--rtl8187.ko-entry_point.cil.out.i [2022-07-12 12:40:30,351 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33dd7178e/dc6a1c8434d34c289e2024c739c355cd/FLAGd9b36a365 [2022-07-12 12:40:31,081 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 12:40:31,082 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8187--rtl8187.ko-entry_point.cil.out.i [2022-07-12 12:40:31,152 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33dd7178e/dc6a1c8434d34c289e2024c739c355cd/FLAGd9b36a365 [2022-07-12 12:40:31,363 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33dd7178e/dc6a1c8434d34c289e2024c739c355cd [2022-07-12 12:40:31,365 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 12:40:31,366 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 12:40:31,368 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 12:40:31,368 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 12:40:31,371 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 12:40:31,371 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:40:31" (1/1) ... [2022-07-12 12:40:31,372 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ca2ba62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:40:31, skipping insertion in model container [2022-07-12 12:40:31,372 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:40:31" (1/1) ... [2022-07-12 12:40:31,378 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 12:40:31,514 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 12:40:32,427 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8187--rtl8187.ko-entry_point.cil.out.i[205376,205389] [2022-07-12 12:40:33,406 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:40:33,466 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 12:40:33,608 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8187--rtl8187.ko-entry_point.cil.out.i[205376,205389] [2022-07-12 12:40:33,710 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: reg = (unsigned int )((u16 )tmp___8) & 65534U [9380] 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: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) [2022-07-12 12:40:33,720 INFO L158 Benchmark]: Toolchain (without parser) took 2352.59ms. Allocated memory was 123.7MB in the beginning and 207.6MB in the end (delta: 83.9MB). Free memory was 94.4MB in the beginning and 100.2MB in the end (delta: -5.9MB). Peak memory consumption was 78.6MB. Max. memory is 16.1GB. [2022-07-12 12:40:33,720 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 96.5MB. Free memory was 50.7MB in the beginning and 50.6MB in the end (delta: 57.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 12:40:33,721 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2349.78ms. Allocated memory was 123.7MB in the beginning and 207.6MB in the end (delta: 83.9MB). Free memory was 94.4MB in the beginning and 100.2MB in the end (delta: -5.9MB). Peak memory consumption was 78.6MB. Max. memory is 16.1GB. [2022-07-12 12:40:33,723 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 96.5MB. Free memory was 50.7MB in the beginning and 50.6MB in the end (delta: 57.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2349.78ms. Allocated memory was 123.7MB in the beginning and 207.6MB in the end (delta: 83.9MB). Free memory was 94.4MB in the beginning and 100.2MB in the end (delta: -5.9MB). Peak memory consumption was 78.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: reg = (unsigned int )((u16 )tmp___8) & 65534U [9380] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: reg = (unsigned int )((u16 )tmp___8) & 65534U [9380]: 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8187--rtl8187.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 f81d244572c9a77eee348ee40397ea85f2dfad22a6619aa4d31ee137ff878aa4 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 12:40:35,353 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 12:40:35,355 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 12:40:35,385 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 12:40:35,385 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 12:40:35,386 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 12:40:35,391 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 12:40:35,394 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 12:40:35,402 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 12:40:35,408 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 12:40:35,409 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 12:40:35,411 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 12:40:35,412 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 12:40:35,413 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 12:40:35,414 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 12:40:35,416 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 12:40:35,419 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 12:40:35,420 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 12:40:35,421 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 12:40:35,423 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 12:40:35,427 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 12:40:35,430 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 12:40:35,430 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 12:40:35,432 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 12:40:35,432 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 12:40:35,435 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 12:40:35,436 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 12:40:35,436 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 12:40:35,437 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 12:40:35,438 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 12:40:35,438 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 12:40:35,439 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 12:40:35,440 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 12:40:35,441 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 12:40:35,442 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 12:40:35,443 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 12:40:35,443 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 12:40:35,443 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 12:40:35,444 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 12:40:35,444 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 12:40:35,444 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 12:40:35,446 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 12:40:35,454 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-12 12:40:35,489 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 12:40:35,490 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 12:40:35,490 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 12:40:35,490 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 12:40:35,491 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 12:40:35,491 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 12:40:35,492 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 12:40:35,492 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 12:40:35,492 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 12:40:35,493 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 12:40:35,493 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 12:40:35,494 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 12:40:35,494 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 12:40:35,494 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 12:40:35,494 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 12:40:35,494 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 12:40:35,495 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 12:40:35,495 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 12:40:35,495 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 12:40:35,495 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 12:40:35,495 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 12:40:35,496 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 12:40:35,496 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 12:40:35,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 12:40:35,496 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 12:40:35,496 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 12:40:35,496 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 12:40:35,497 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 12:40:35,497 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 12:40:35,497 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 12:40:35,497 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 12:40:35,497 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 12:40:35,498 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 12:40:35,498 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f81d244572c9a77eee348ee40397ea85f2dfad22a6619aa4d31ee137ff878aa4 [2022-07-12 12:40:35,808 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 12:40:35,831 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 12:40:35,833 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 12:40:35,834 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 12:40:35,836 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 12:40:35,837 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8187--rtl8187.ko-entry_point.cil.out.i [2022-07-12 12:40:35,888 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/528bbce8d/acf431560c164c00801b3dc6c05b240c/FLAG2c16da162 [2022-07-12 12:40:36,763 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 12:40:36,764 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8187--rtl8187.ko-entry_point.cil.out.i [2022-07-12 12:40:36,824 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/528bbce8d/acf431560c164c00801b3dc6c05b240c/FLAG2c16da162 [2022-07-12 12:40:36,915 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/528bbce8d/acf431560c164c00801b3dc6c05b240c [2022-07-12 12:40:36,918 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 12:40:36,919 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 12:40:36,942 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 12:40:36,942 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 12:40:36,945 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 12:40:36,946 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:40:36" (1/1) ... [2022-07-12 12:40:36,947 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@310257c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:40:36, skipping insertion in model container [2022-07-12 12:40:36,947 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:40:36" (1/1) ... [2022-07-12 12:40:36,952 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 12:40:37,080 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 12:40:37,952 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8187--rtl8187.ko-entry_point.cil.out.i[205376,205389] [2022-07-12 12:40:39,141 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:40:39,215 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-12 12:40:39,321 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 12:40:39,450 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8187--rtl8187.ko-entry_point.cil.out.i[205376,205389] [2022-07-12 12:40:39,622 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:40:39,663 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 12:40:39,815 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8187--rtl8187.ko-entry_point.cil.out.i[205376,205389] [2022-07-12 12:40:39,998 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:40:40,131 INFO L208 MainTranslator]: Completed translation [2022-07-12 12:40:40,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:40:40 WrapperNode [2022-07-12 12:40:40,131 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 12:40:40,133 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 12:40:40,133 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 12:40:40,133 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 12:40:40,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:40:40" (1/1) ... [2022-07-12 12:40:40,239 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:40:40" (1/1) ... [2022-07-12 12:40:40,441 INFO L137 Inliner]: procedures = 322, calls = 3868, calls flagged for inlining = 135, calls inlined = 131, statements flattened = 6144 [2022-07-12 12:40:40,442 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 12:40:40,443 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 12:40:40,444 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 12:40:40,444 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 12:40:40,459 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:40:40" (1/1) ... [2022-07-12 12:40:40,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:40:40" (1/1) ... [2022-07-12 12:40:40,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:40:40" (1/1) ... [2022-07-12 12:40:40,537 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:40:40" (1/1) ... [2022-07-12 12:40:40,721 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:40:40" (1/1) ... [2022-07-12 12:40:40,749 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:40:40" (1/1) ... [2022-07-12 12:40:40,783 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:40:40" (1/1) ... [2022-07-12 12:40:40,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 12:40:40,822 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 12:40:40,823 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 12:40:40,823 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 12:40:40,824 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:40:40" (1/1) ... [2022-07-12 12:40:40,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 12:40:40,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 12:40:40,852 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) [2022-07-12 12:40:40,878 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 [2022-07-12 12:40:40,889 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread8 [2022-07-12 12:40:40,890 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread8 [2022-07-12 12:40:40,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-12 12:40:40,890 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_register_led [2022-07-12 12:40:40,890 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_register_led [2022-07-12 12:40:40,890 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-12 12:40:40,891 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-12 12:40:40,891 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-07-12 12:40:40,891 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-07-12 12:40:40,891 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_add_interface [2022-07-12 12:40:40,891 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_add_interface [2022-07-12 12:40:40,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-12 12:40:40,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-12 12:40:40,892 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite8 [2022-07-12 12:40:40,892 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite8 [2022-07-12 12:40:40,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 12:40:40,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-12 12:40:40,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 12:40:40,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 12:40:40,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 12:40:40,893 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-07-12 12:40:40,893 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-07-12 12:40:40,893 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-07-12 12:40:40,893 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-07-12 12:40:40,894 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2022-07-12 12:40:40,894 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2022-07-12 12:40:40,894 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-07-12 12:40:40,894 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-07-12 12:40:40,894 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2022-07-12 12:40:40,894 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2022-07-12 12:40:40,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_1 [2022-07-12 12:40:40,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_1 [2022-07-12 12:40:40,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_3 [2022-07-12 12:40:40,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_3 [2022-07-12 12:40:40,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 12:40:40,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 12:40:40,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_2 [2022-07-12 12:40:40,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_2 [2022-07-12 12:40:40,896 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_init [2022-07-12 12:40:40,896 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_init [2022-07-12 12:40:40,896 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_init [2022-07-12 12:40:40,896 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_init [2022-07-12 12:40:40,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-07-12 12:40:40,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-07-12 12:40:40,897 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_tx_status_irqsafe [2022-07-12 12:40:40,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_tx_status_irqsafe [2022-07-12 12:40:40,897 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_b_rf_init [2022-07-12 12:40:40,897 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_b_rf_init [2022-07-12 12:40:40,897 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-12 12:40:40,898 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-12 12:40:40,898 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-07-12 12:40:40,898 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-07-12 12:40:40,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-12 12:40:40,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-12 12:40:40,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-12 12:40:40,898 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-12 12:40:40,899 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 12:40:40,899 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 12:40:40,899 INFO L130 BoogieDeclarations]: Found specification of procedure fls [2022-07-12 12:40:40,899 INFO L138 BoogieDeclarations]: Found implementation of procedure fls [2022-07-12 12:40:40,899 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_remove_interface [2022-07-12 12:40:40,899 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_remove_interface [2022-07-12 12:40:40,900 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-12 12:40:40,900 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-12 12:40:40,900 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write [2022-07-12 12:40:40,900 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write [2022-07-12 12:40:40,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 12:40:40,901 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_stop [2022-07-12 12:40:40,901 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_stop [2022-07-12 12:40:40,901 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_set_anaparam [2022-07-12 12:40:40,901 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_set_anaparam [2022-07-12 12:40:40,901 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-12 12:40:40,901 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-12 12:40:40,902 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_configure_filter [2022-07-12 12:40:40,902 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_configure_filter [2022-07-12 12:40:40,902 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread32 [2022-07-12 12:40:40,902 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread32 [2022-07-12 12:40:40,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 12:40:40,902 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_rfkill_poll [2022-07-12 12:40:40,903 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_rfkill_poll [2022-07-12 12:40:40,903 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-07-12 12:40:40,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-07-12 12:40:40,903 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-07-12 12:40:40,903 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-12 12:40:40,903 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-12 12:40:40,904 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_rfkill_set_hw_state [2022-07-12 12:40:40,904 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_rfkill_set_hw_state [2022-07-12 12:40:40,904 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2022-07-12 12:40:40,904 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2022-07-12 12:40:40,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-12 12:40:40,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-12 12:40:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-12 12:40:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 12:40:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-12 12:40:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 12:40:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_set_tx_power [2022-07-12 12:40:40,905 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_set_tx_power [2022-07-12 12:40:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-12 12:40:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 12:40:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-12 12:40:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_config [2022-07-12 12:40:40,906 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_config [2022-07-12 12:40:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-12 12:40:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread16 [2022-07-12 12:40:40,907 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread16 [2022-07-12 12:40:40,907 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-07-12 12:40:40,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-07-12 12:40:40,907 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-12 12:40:40,907 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-12 12:40:40,907 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-12 12:40:40,908 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-12 12:40:40,908 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_queue_delayed_work [2022-07-12 12:40:40,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_queue_delayed_work [2022-07-12 12:40:40,908 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite8_idx [2022-07-12 12:40:40,908 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite8_idx [2022-07-12 12:40:40,908 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-12 12:40:40,909 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-12 12:40:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_is_radio_enabled [2022-07-12 12:40:40,909 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_is_radio_enabled [2022-07-12 12:40:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_disconnect [2022-07-12 12:40:40,909 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_disconnect [2022-07-12 12:40:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2022-07-12 12:40:40,909 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2022-07-12 12:40:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-07-12 12:40:40,910 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-07-12 12:40:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-12 12:40:40,910 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-12 12:40:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-07-12 12:40:40,911 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-07-12 12:40:40,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-12 12:40:40,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-12 12:40:40,911 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_tx_rate [2022-07-12 12:40:40,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_tx_rate [2022-07-12 12:40:40,912 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-07-12 12:40:40,912 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-07-12 12:40:40,912 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-12 12:40:40,912 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-12 12:40:40,912 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_stop [2022-07-12 12:40:40,912 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_stop [2022-07-12 12:40:40,913 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_write_phy [2022-07-12 12:40:40,913 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_write_phy [2022-07-12 12:40:40,913 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_tx [2022-07-12 12:40:40,913 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_tx [2022-07-12 12:40:40,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-12 12:40:40,913 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-12 12:40:40,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2022-07-12 12:40:40,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2022-07-12 12:40:40,914 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_read [2022-07-12 12:40:40,914 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_read [2022-07-12 12:40:40,914 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-07-12 12:40:40,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-07-12 12:40:40,914 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_conf_tx [2022-07-12 12:40:40,915 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_conf_tx [2022-07-12 12:40:40,915 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2022-07-12 12:40:40,915 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2022-07-12 12:40:40,915 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-12 12:40:40,915 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-12 12:40:40,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-12 12:40:40,915 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_channel [2022-07-12 12:40:40,916 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_channel [2022-07-12 12:40:40,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-12 12:40:40,916 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_read [2022-07-12 12:40:40,916 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_read [2022-07-12 12:40:40,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-12 12:40:40,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-12 12:40:40,917 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_tx_power [2022-07-12 12:40:40,917 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_tx_power [2022-07-12 12:40:40,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 12:40:40,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 12:40:40,917 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_unregister_led [2022-07-12 12:40:40,917 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_unregister_led [2022-07-12 12:40:40,917 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2022-07-12 12:40:40,918 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_init_urbs [2022-07-12 12:40:40,918 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_init_urbs [2022-07-12 12:40:40,918 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_name [2022-07-12 12:40:40,918 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_name [2022-07-12 12:40:40,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 12:40:40,918 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_bss_info_changed [2022-07-12 12:40:40,919 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_bss_info_changed [2022-07-12 12:40:40,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 12:40:40,919 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-07-12 12:40:40,919 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-07-12 12:40:40,919 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2022-07-12 12:40:40,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2022-07-12 12:40:40,919 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_cck [2022-07-12 12:40:40,920 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_cck [2022-07-12 12:40:40,920 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-12 12:40:40,920 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-12 12:40:40,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 12:40:40,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-12 12:40:40,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-12 12:40:40,921 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_RXCB [2022-07-12 12:40:40,921 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_RXCB [2022-07-12 12:40:40,921 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 12:40:40,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 12:40:40,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-12 12:40:40,921 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-07-12 12:40:40,921 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-07-12 12:40:40,922 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_rts_cts_rate [2022-07-12 12:40:40,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_rts_cts_rate [2022-07-12 12:40:40,922 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-07-12 12:40:40,922 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-07-12 12:40:40,922 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-07-12 12:40:40,922 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-07-12 12:40:40,922 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_get_tsf [2022-07-12 12:40:40,923 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_get_tsf [2022-07-12 12:40:40,923 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-07-12 12:40:40,923 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-07-12 12:40:40,923 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-07-12 12:40:40,923 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-07-12 12:40:40,923 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-12 12:40:40,924 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-12 12:40:40,924 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite32_idx [2022-07-12 12:40:40,924 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite32_idx [2022-07-12 12:40:40,924 INFO L130 BoogieDeclarations]: Found specification of procedure skb_unlink [2022-07-12 12:40:40,924 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_unlink [2022-07-12 12:40:40,924 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite32 [2022-07-12 12:40:40,924 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite32 [2022-07-12 12:40:40,925 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite16_idx [2022-07-12 12:40:40,925 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite16_idx [2022-07-12 12:40:40,925 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_cmd_reset [2022-07-12 12:40:40,925 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_cmd_reset [2022-07-12 12:40:40,925 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_ofdm [2022-07-12 12:40:40,925 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_ofdm [2022-07-12 12:40:40,926 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_prepare_multicast [2022-07-12 12:40:40,926 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_prepare_multicast [2022-07-12 12:40:40,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-12 12:40:40,926 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-07-12 12:40:40,926 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-07-12 12:40:40,926 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite16 [2022-07-12 12:40:40,926 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite16 [2022-07-12 12:40:40,927 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-07-12 12:40:40,927 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-07-12 12:40:40,927 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-07-12 12:40:40,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 12:40:40,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 12:40:40,927 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2022-07-12 12:40:40,928 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2022-07-12 12:40:41,702 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 12:40:41,707 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 12:40:44,295 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 12:41:24,107 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 12:41:24,133 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 12:41:24,133 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-07-12 12:41:24,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 12:41:24 BoogieIcfgContainer [2022-07-12 12:41:24,140 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 12:41:24,143 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 12:41:24,143 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 12:41:24,145 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 12:41:24,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 12:40:36" (1/3) ... [2022-07-12 12:41:24,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11f7ce61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 12:41:24, skipping insertion in model container [2022-07-12 12:41:24,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:40:40" (2/3) ... [2022-07-12 12:41:24,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11f7ce61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 12:41:24, skipping insertion in model container [2022-07-12 12:41:24,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 12:41:24" (3/3) ... [2022-07-12 12:41:24,156 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8187--rtl8187.ko-entry_point.cil.out.i [2022-07-12 12:41:24,177 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 12:41:24,178 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 12:41:24,280 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 12:41:24,286 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@441a03f7, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@10fb95a3 [2022-07-12 12:41:24,287 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 12:41:24,298 INFO L276 IsEmpty]: Start isEmpty. Operand has 2462 states, 1417 states have (on average 1.2731122088920255) internal successors, (1804), 1462 states have internal predecessors, (1804), 942 states have call successors, (942), 102 states have call predecessors, (942), 101 states have return successors, (935), 920 states have call predecessors, (935), 935 states have call successors, (935) [2022-07-12 12:41:24,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-12 12:41:24,320 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:41:24,321 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:41:24,322 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:41:24,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:41:24,327 INFO L85 PathProgramCache]: Analyzing trace with hash -2068464976, now seen corresponding path program 1 times [2022-07-12 12:41:24,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:41:24,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1756963072] [2022-07-12 12:41:24,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:41:24,348 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:41:24,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:41:24,353 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) [2022-07-12 12:41:24,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-12 12:41:30,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:41:30,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 3465 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 12:41:30,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:41:30,845 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-07-12 12:41:30,846 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:41:30,846 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:41:30,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1756963072] [2022-07-12 12:41:30,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1756963072] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:41:30,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:41:30,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 12:41:30,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433515652] [2022-07-12 12:41:30,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:41:30,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 12:41:30,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:41:30,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 12:41:30,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 12:41:30,890 INFO L87 Difference]: Start difference. First operand has 2462 states, 1417 states have (on average 1.2731122088920255) internal successors, (1804), 1462 states have internal predecessors, (1804), 942 states have call successors, (942), 102 states have call predecessors, (942), 101 states have return successors, (935), 920 states have call predecessors, (935), 935 states have call successors, (935) Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2022-07-12 12:41:31,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:41:31,398 INFO L93 Difference]: Finished difference Result 4922 states and 7423 transitions. [2022-07-12 12:41:31,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 12:41:31,401 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) Word has length 67 [2022-07-12 12:41:31,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:41:31,447 INFO L225 Difference]: With dead ends: 4922 [2022-07-12 12:41:31,447 INFO L226 Difference]: Without dead ends: 2449 [2022-07-12 12:41:31,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:41:31,479 INFO L413 NwaCegarLoop]: 3669 mSDtfsCounter, 2 mSDsluCounter, 7333 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 11002 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 12:41:31,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11002 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 12:41:31,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2449 states. [2022-07-12 12:41:31,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2449 to 2449. [2022-07-12 12:41:31,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2449 states, 1413 states have (on average 1.2625619249823072) internal successors, (1784), 1449 states have internal predecessors, (1784), 935 states have call successors, (935), 101 states have call predecessors, (935), 100 states have return successors, (934), 919 states have call predecessors, (934), 934 states have call successors, (934) [2022-07-12 12:41:31,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2449 states to 2449 states and 3653 transitions. [2022-07-12 12:41:31,722 INFO L78 Accepts]: Start accepts. Automaton has 2449 states and 3653 transitions. Word has length 67 [2022-07-12 12:41:31,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:41:31,723 INFO L495 AbstractCegarLoop]: Abstraction has 2449 states and 3653 transitions. [2022-07-12 12:41:31,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2022-07-12 12:41:31,724 INFO L276 IsEmpty]: Start isEmpty. Operand 2449 states and 3653 transitions. [2022-07-12 12:41:31,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-12 12:41:31,729 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:41:31,729 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:41:31,892 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-12 12:41:31,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:41:31,943 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:41:31,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:41:31,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1269923975, now seen corresponding path program 1 times [2022-07-12 12:41:31,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:41:31,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1339731601] [2022-07-12 12:41:31,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:41:31,950 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:41:31,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:41:31,952 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) [2022-07-12 12:41:31,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-12 12:41:38,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:41:38,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 3476 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 12:41:38,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:41:38,771 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-07-12 12:41:38,771 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 12:41:39,396 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-07-12 12:41:39,396 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:41:39,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1339731601] [2022-07-12 12:41:39,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1339731601] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 12:41:39,396 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 12:41:39,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-07-12 12:41:39,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373467087] [2022-07-12 12:41:39,397 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 12:41:39,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 12:41:39,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:41:39,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 12:41:39,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 12:41:39,399 INFO L87 Difference]: Start difference. First operand 2449 states and 3653 transitions. Second operand has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) [2022-07-12 12:41:40,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:41:40,542 INFO L93 Difference]: Finished difference Result 4890 states and 7306 transitions. [2022-07-12 12:41:40,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 12:41:40,544 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) Word has length 68 [2022-07-12 12:41:40,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:41:40,570 INFO L225 Difference]: With dead ends: 4890 [2022-07-12 12:41:40,570 INFO L226 Difference]: Without dead ends: 2458 [2022-07-12 12:41:40,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2022-07-12 12:41:40,600 INFO L413 NwaCegarLoop]: 3648 mSDtfsCounter, 12 mSDsluCounter, 7295 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 10943 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-12 12:41:40,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 10943 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-12 12:41:40,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2458 states. [2022-07-12 12:41:40,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2458 to 2458. [2022-07-12 12:41:40,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2458 states, 1421 states have (on average 1.263194933145672) internal successors, (1795), 1457 states have internal predecessors, (1795), 935 states have call successors, (935), 102 states have call predecessors, (935), 101 states have return successors, (934), 919 states have call predecessors, (934), 934 states have call successors, (934) [2022-07-12 12:41:40,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2458 states to 2458 states and 3664 transitions. [2022-07-12 12:41:40,735 INFO L78 Accepts]: Start accepts. Automaton has 2458 states and 3664 transitions. Word has length 68 [2022-07-12 12:41:40,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:41:40,736 INFO L495 AbstractCegarLoop]: Abstraction has 2458 states and 3664 transitions. [2022-07-12 12:41:40,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) [2022-07-12 12:41:40,736 INFO L276 IsEmpty]: Start isEmpty. Operand 2458 states and 3664 transitions. [2022-07-12 12:41:40,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-07-12 12:41:40,737 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:41:40,738 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:41:40,882 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-07-12 12:41:40,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:41:40,939 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:41:40,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:41:40,939 INFO L85 PathProgramCache]: Analyzing trace with hash 119874800, now seen corresponding path program 2 times [2022-07-12 12:41:40,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:41:40,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1269611687] [2022-07-12 12:41:40,946 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 12:41:40,947 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:41:40,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:41:40,948 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) [2022-07-12 12:41:40,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-12 12:41:46,702 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 12:41:46,702 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 12:41:47,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 3346 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 12:41:47,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:41:47,616 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-07-12 12:41:47,617 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:41:47,617 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:41:47,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1269611687] [2022-07-12 12:41:47,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1269611687] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:41:47,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:41:47,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 12:41:47,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271211501] [2022-07-12 12:41:47,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:41:47,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 12:41:47,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:41:47,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 12:41:47,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:41:47,619 INFO L87 Difference]: Start difference. First operand 2458 states and 3664 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-12 12:41:48,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:41:48,573 INFO L93 Difference]: Finished difference Result 7315 states and 10941 transitions. [2022-07-12 12:41:48,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 12:41:48,574 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 71 [2022-07-12 12:41:48,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:41:48,625 INFO L225 Difference]: With dead ends: 7315 [2022-07-12 12:41:48,626 INFO L226 Difference]: Without dead ends: 4879 [2022-07-12 12:41:48,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 12:41:48,655 INFO L413 NwaCegarLoop]: 5037 mSDtfsCounter, 3626 mSDsluCounter, 13705 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3626 SdHoareTripleChecker+Valid, 18742 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-12 12:41:48,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3626 Valid, 18742 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-12 12:41:48,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4879 states. [2022-07-12 12:41:48,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4879 to 4875. [2022-07-12 12:41:48,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4875 states, 2812 states have (on average 1.2635135135135136) internal successors, (3553), 2884 states have internal predecessors, (3553), 1861 states have call successors, (1861), 202 states have call predecessors, (1861), 201 states have return successors, (1878), 1830 states have call predecessors, (1878), 1860 states have call successors, (1878) [2022-07-12 12:41:48,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4875 states to 4875 states and 7292 transitions. [2022-07-12 12:41:48,963 INFO L78 Accepts]: Start accepts. Automaton has 4875 states and 7292 transitions. Word has length 71 [2022-07-12 12:41:48,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:41:48,964 INFO L495 AbstractCegarLoop]: Abstraction has 4875 states and 7292 transitions. [2022-07-12 12:41:48,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-12 12:41:48,964 INFO L276 IsEmpty]: Start isEmpty. Operand 4875 states and 7292 transitions. [2022-07-12 12:41:48,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-07-12 12:41:48,973 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:41:48,973 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 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] [2022-07-12 12:41:49,112 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-12 12:41:49,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:41:49,191 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:41:49,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:41:49,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1366899849, now seen corresponding path program 1 times [2022-07-12 12:41:49,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:41:49,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [86420393] [2022-07-12 12:41:49,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:41:49,198 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:41:49,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:41:49,199 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) [2022-07-12 12:41:49,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-12 12:41:55,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:41:55,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 3679 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-12 12:41:55,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:41:56,115 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-07-12 12:41:56,115 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 12:41:57,467 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-07-12 12:41:57,467 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:41:57,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [86420393] [2022-07-12 12:41:57,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [86420393] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 12:41:57,467 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 12:41:57,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-07-12 12:41:57,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370928651] [2022-07-12 12:41:57,467 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 12:41:57,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-12 12:41:57,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:41:57,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-12 12:41:57,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-07-12 12:41:57,469 INFO L87 Difference]: Start difference. First operand 4875 states and 7292 transitions. Second operand has 14 states, 14 states have (on average 7.857142857142857) internal successors, (110), 14 states have internal predecessors, (110), 2 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-12 12:42:00,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:42:00,585 INFO L93 Difference]: Finished difference Result 9749 states and 14619 transitions. [2022-07-12 12:42:00,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-12 12:42:00,598 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.857142857142857) internal successors, (110), 14 states have internal predecessors, (110), 2 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 129 [2022-07-12 12:42:00,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:42:00,648 INFO L225 Difference]: With dead ends: 9749 [2022-07-12 12:42:00,648 INFO L226 Difference]: Without dead ends: 4885 [2022-07-12 12:42:00,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=178, Invalid=374, Unknown=0, NotChecked=0, Total=552 [2022-07-12 12:42:00,689 INFO L413 NwaCegarLoop]: 3650 mSDtfsCounter, 29 mSDsluCounter, 25524 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 29174 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-12 12:42:00,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 29174 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-12 12:42:00,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4885 states. [2022-07-12 12:42:00,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4885 to 4885. [2022-07-12 12:42:01,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4885 states, 2822 states have (on average 1.2618710134656272) internal successors, (3561), 2894 states have internal predecessors, (3561), 1861 states have call successors, (1861), 202 states have call predecessors, (1861), 201 states have return successors, (1878), 1830 states have call predecessors, (1878), 1860 states have call successors, (1878) [2022-07-12 12:42:01,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4885 states to 4885 states and 7300 transitions. [2022-07-12 12:42:01,047 INFO L78 Accepts]: Start accepts. Automaton has 4885 states and 7300 transitions. Word has length 129 [2022-07-12 12:42:01,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:42:01,049 INFO L495 AbstractCegarLoop]: Abstraction has 4885 states and 7300 transitions. [2022-07-12 12:42:01,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.857142857142857) internal successors, (110), 14 states have internal predecessors, (110), 2 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-12 12:42:01,049 INFO L276 IsEmpty]: Start isEmpty. Operand 4885 states and 7300 transitions. [2022-07-12 12:42:01,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-07-12 12:42:01,060 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:42:01,060 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 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] [2022-07-12 12:42:01,190 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-07-12 12:42:01,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:42:01,279 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:42:01,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:42:01,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1499053495, now seen corresponding path program 2 times [2022-07-12 12:42:01,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:42:01,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1587279846] [2022-07-12 12:42:01,283 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 12:42:01,283 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:42:01,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:42:01,284 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) [2022-07-12 12:42:01,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-12 12:42:06,954 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 12:42:06,955 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 12:42:07,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 3346 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 12:42:07,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:42:08,430 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-07-12 12:42:08,431 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:42:08,431 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:42:08,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1587279846] [2022-07-12 12:42:08,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1587279846] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:42:08,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:42:08,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 12:42:08,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804103070] [2022-07-12 12:42:08,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:42:08,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:42:08,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:42:08,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:42:08,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:42:08,433 INFO L87 Difference]: Start difference. First operand 4885 states and 7300 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 12:42:09,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:42:09,079 INFO L93 Difference]: Finished difference Result 14540 states and 21756 transitions. [2022-07-12 12:42:09,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:42:09,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 133 [2022-07-12 12:42:09,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:42:09,194 INFO L225 Difference]: With dead ends: 14540 [2022-07-12 12:42:09,194 INFO L226 Difference]: Without dead ends: 9687 [2022-07-12 12:42:09,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:42:09,237 INFO L413 NwaCegarLoop]: 4583 mSDtfsCounter, 3531 mSDsluCounter, 3633 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3531 SdHoareTripleChecker+Valid, 8216 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 12:42:09,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3531 Valid, 8216 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 12:42:09,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9687 states. [2022-07-12 12:42:09,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9687 to 9687. [2022-07-12 12:42:09,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9687 states, 5584 states have (on average 1.2632521489971347) internal successors, (7054), 5728 states have internal predecessors, (7054), 3701 states have call successors, (3701), 402 states have call predecessors, (3701), 401 states have return successors, (3736), 3640 states have call predecessors, (3736), 3700 states have call successors, (3736) [2022-07-12 12:42:09,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9687 states to 9687 states and 14491 transitions. [2022-07-12 12:42:09,837 INFO L78 Accepts]: Start accepts. Automaton has 9687 states and 14491 transitions. Word has length 133 [2022-07-12 12:42:09,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:42:09,837 INFO L495 AbstractCegarLoop]: Abstraction has 9687 states and 14491 transitions. [2022-07-12 12:42:09,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 12:42:09,838 INFO L276 IsEmpty]: Start isEmpty. Operand 9687 states and 14491 transitions. [2022-07-12 12:42:09,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-07-12 12:42:09,847 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:42:09,848 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 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] [2022-07-12 12:42:10,003 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-12 12:42:10,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:42:10,068 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:42:10,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:42:10,068 INFO L85 PathProgramCache]: Analyzing trace with hash -884016191, now seen corresponding path program 1 times [2022-07-12 12:42:10,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:42:10,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [67836029] [2022-07-12 12:42:10,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:42:10,071 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:42:10,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:42:10,072 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) [2022-07-12 12:42:10,073 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-12 12:42:16,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:42:16,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 3767 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 12:42:16,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:42:16,914 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2022-07-12 12:42:16,915 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:42:16,915 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:42:16,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [67836029] [2022-07-12 12:42:16,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [67836029] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:42:16,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:42:16,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 12:42:16,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646366292] [2022-07-12 12:42:16,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:42:16,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:42:16,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:42:16,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:42:16,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:42:16,918 INFO L87 Difference]: Start difference. First operand 9687 states and 14491 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 12:42:18,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:42:18,234 INFO L93 Difference]: Finished difference Result 24543 states and 36808 transitions. [2022-07-12 12:42:18,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:42:18,235 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 143 [2022-07-12 12:42:18,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:42:18,373 INFO L225 Difference]: With dead ends: 24543 [2022-07-12 12:42:18,373 INFO L226 Difference]: Without dead ends: 14888 [2022-07-12 12:42:18,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:42:18,465 INFO L413 NwaCegarLoop]: 4249 mSDtfsCounter, 2001 mSDsluCounter, 3555 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2001 SdHoareTripleChecker+Valid, 7804 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 12:42:18,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2001 Valid, 7804 Invalid, 71 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 12:42:18,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14888 states. [2022-07-12 12:42:19,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14888 to 14879. [2022-07-12 12:42:19,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14879 states, 8378 states have (on average 1.2613989018858915) internal successors, (10568), 8566 states have internal predecessors, (10568), 5871 states have call successors, (5871), 630 states have call predecessors, (5871), 629 states have return successors, (5906), 5790 states have call predecessors, (5906), 5870 states have call successors, (5906) [2022-07-12 12:42:19,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14879 states to 14879 states and 22345 transitions. [2022-07-12 12:42:19,522 INFO L78 Accepts]: Start accepts. Automaton has 14879 states and 22345 transitions. Word has length 143 [2022-07-12 12:42:19,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:42:19,523 INFO L495 AbstractCegarLoop]: Abstraction has 14879 states and 22345 transitions. [2022-07-12 12:42:19,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 12:42:19,524 INFO L276 IsEmpty]: Start isEmpty. Operand 14879 states and 22345 transitions. [2022-07-12 12:42:19,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-12 12:42:19,540 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:42:19,540 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 8, 3, 3, 3, 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] [2022-07-12 12:42:19,685 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-12 12:42:19,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:42:19,759 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:42:19,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:42:19,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1103862230, now seen corresponding path program 1 times [2022-07-12 12:42:19,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:42:19,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1917354642] [2022-07-12 12:42:19,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:42:19,763 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:42:19,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:42:19,764 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) [2022-07-12 12:42:19,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-12 12:42:25,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:42:26,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 3891 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 12:42:26,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:42:27,198 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2022-07-12 12:42:27,198 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:42:27,198 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:42:27,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1917354642] [2022-07-12 12:42:27,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1917354642] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:42:27,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:42:27,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 12:42:27,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147522185] [2022-07-12 12:42:27,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:42:27,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:42:27,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:42:27,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:42:27,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:42:27,201 INFO L87 Difference]: Start difference. First operand 14879 states and 22345 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-07-12 12:42:28,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:42:28,893 INFO L93 Difference]: Finished difference Result 37859 states and 56720 transitions. [2022-07-12 12:42:28,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:42:28,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 187 [2022-07-12 12:42:28,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:42:29,215 INFO L225 Difference]: With dead ends: 37859 [2022-07-12 12:42:29,216 INFO L226 Difference]: Without dead ends: 23012 [2022-07-12 12:42:29,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:42:29,310 INFO L413 NwaCegarLoop]: 6130 mSDtfsCounter, 3514 mSDsluCounter, 3025 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3514 SdHoareTripleChecker+Valid, 9155 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 12:42:29,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3514 Valid, 9155 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 12:42:29,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23012 states. [2022-07-12 12:42:30,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23012 to 23003. [2022-07-12 12:42:30,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23003 states, 13172 states have (on average 1.263437594898269) internal successors, (16642), 13492 states have internal predecessors, (16642), 8809 states have call successors, (8809), 1022 states have call predecessors, (8809), 1021 states have return successors, (8864), 8668 states have call predecessors, (8864), 8808 states have call successors, (8864) [2022-07-12 12:42:30,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23003 states to 23003 states and 34315 transitions. [2022-07-12 12:42:30,918 INFO L78 Accepts]: Start accepts. Automaton has 23003 states and 34315 transitions. Word has length 187 [2022-07-12 12:42:30,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:42:30,918 INFO L495 AbstractCegarLoop]: Abstraction has 23003 states and 34315 transitions. [2022-07-12 12:42:30,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-07-12 12:42:30,919 INFO L276 IsEmpty]: Start isEmpty. Operand 23003 states and 34315 transitions. [2022-07-12 12:42:30,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-12 12:42:30,933 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:42:30,933 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 8, 3, 3, 3, 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] [2022-07-12 12:42:31,057 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-07-12 12:42:31,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:42:31,140 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:42:31,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:42:31,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1119806596, now seen corresponding path program 1 times [2022-07-12 12:42:31,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:42:31,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2024147000] [2022-07-12 12:42:31,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:42:31,144 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:42:31,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:42:31,146 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) [2022-07-12 12:42:31,147 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-12 12:42:38,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:42:39,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 3891 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 12:42:39,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:42:39,191 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2022-07-12 12:42:39,191 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:42:39,191 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:42:39,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2024147000] [2022-07-12 12:42:39,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2024147000] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:42:39,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:42:39,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 12:42:39,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426879594] [2022-07-12 12:42:39,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:42:39,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:42:39,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:42:39,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:42:39,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:42:39,192 INFO L87 Difference]: Start difference. First operand 23003 states and 34315 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2022-07-12 12:42:40,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:42:40,085 INFO L93 Difference]: Finished difference Result 34517 states and 51548 transitions. [2022-07-12 12:42:40,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:42:40,086 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) Word has length 187 [2022-07-12 12:42:40,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:42:40,365 INFO L225 Difference]: With dead ends: 34517 [2022-07-12 12:42:40,365 INFO L226 Difference]: Without dead ends: 23019 [2022-07-12 12:42:40,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:42:40,437 INFO L413 NwaCegarLoop]: 3651 mSDtfsCounter, 5 mSDsluCounter, 3643 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 7294 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 12:42:40,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 7294 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 12:42:40,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23019 states. [2022-07-12 12:42:41,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23019 to 23019. [2022-07-12 12:42:41,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23019 states, 13184 states have (on average 1.2631978155339805) internal successors, (16654), 13508 states have internal predecessors, (16654), 8809 states have call successors, (8809), 1022 states have call predecessors, (8809), 1025 states have return successors, (8868), 8668 states have call predecessors, (8868), 8808 states have call successors, (8868) [2022-07-12 12:42:41,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23019 states to 23019 states and 34331 transitions. [2022-07-12 12:42:41,777 INFO L78 Accepts]: Start accepts. Automaton has 23019 states and 34331 transitions. Word has length 187 [2022-07-12 12:42:41,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:42:41,777 INFO L495 AbstractCegarLoop]: Abstraction has 23019 states and 34331 transitions. [2022-07-12 12:42:41,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2022-07-12 12:42:41,778 INFO L276 IsEmpty]: Start isEmpty. Operand 23019 states and 34331 transitions. [2022-07-12 12:42:41,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-12 12:42:41,790 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:42:41,791 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 8, 3, 3, 3, 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] [2022-07-12 12:42:41,938 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-12 12:42:42,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:42:42,007 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:42:42,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:42:42,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1130499163, now seen corresponding path program 1 times [2022-07-12 12:42:42,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:42:42,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [332037067] [2022-07-12 12:42:42,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:42:42,012 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:42:42,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:42:42,014 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:42:42,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-12 12:42:49,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:42:49,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 3895 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-12 12:42:49,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:42:51,745 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 178 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2022-07-12 12:42:51,745 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:42:51,745 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:42:51,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [332037067] [2022-07-12 12:42:51,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [332037067] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:42:51,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:42:51,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 12:42:51,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59178040] [2022-07-12 12:42:51,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:42:51,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 12:42:51,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:42:51,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 12:42:51,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-12 12:42:51,748 INFO L87 Difference]: Start difference. First operand 23019 states and 34331 transitions. Second operand has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 4 states have call successors, (21), 4 states have call predecessors, (21), 3 states have return successors, (20), 5 states have call predecessors, (20), 3 states have call successors, (20) [2022-07-12 12:42:59,278 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:43:01,282 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:43:09,037 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:43:15,967 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:43:17,477 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:43:20,646 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:43:21,719 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:43:24,505 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:43:26,527 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:44:03,036 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:44:04,598 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:44:07,566 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:44:09,657 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:44:24,473 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []