./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 35987657 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-?-3598765 [2022-07-21 11:14:14,868 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 11:14:14,870 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 11:14:14,905 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 11:14:14,906 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 11:14:14,907 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 11:14:14,908 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 11:14:14,909 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 11:14:14,911 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 11:14:14,911 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 11:14:14,912 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 11:14:14,913 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 11:14:14,914 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 11:14:14,914 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 11:14:14,915 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 11:14:14,916 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 11:14:14,917 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 11:14:14,918 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 11:14:14,919 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 11:14:14,921 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 11:14:14,922 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 11:14:14,923 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 11:14:14,924 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 11:14:14,925 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 11:14:14,926 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 11:14:14,929 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 11:14:14,929 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 11:14:14,930 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 11:14:14,931 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 11:14:14,931 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 11:14:14,932 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 11:14:14,932 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 11:14:14,933 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 11:14:14,933 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 11:14:14,934 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 11:14:14,935 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 11:14:14,935 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 11:14:14,936 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 11:14:14,936 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 11:14:14,936 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 11:14:14,937 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 11:14:14,937 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 11:14:14,938 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 11:14:14,963 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 11:14:14,964 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 11:14:14,964 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 11:14:14,964 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 11:14:14,965 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 11:14:14,965 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 11:14:14,966 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 11:14:14,966 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 11:14:14,966 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 11:14:14,967 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 11:14:14,967 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 11:14:14,967 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 11:14:14,968 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 11:14:14,968 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 11:14:14,968 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 11:14:14,968 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 11:14:14,968 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 11:14:14,968 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 11:14:14,969 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 11:14:14,969 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 11:14:14,969 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 11:14:14,969 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:14:14,970 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 11:14:14,970 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 11:14:14,970 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 11:14:14,970 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 11:14:14,970 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 11:14:14,970 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 11:14:14,971 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 11:14:14,971 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 11:14:14,971 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f81d244572c9a77eee348ee40397ea85f2dfad22a6619aa4d31ee137ff878aa4 [2022-07-21 11:14:15,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 11:14:15,306 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 11:14:15,308 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 11:14:15,309 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 11:14:15,310 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 11:14:15,311 INFO L432 ainManager$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 [2022-07-21 11:14:15,369 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d643d9d6/98f639caddf94138a25e872cd8624340/FLAG2a6badab6 [2022-07-21 11:14:16,240 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 11:14:16,240 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 [2022-07-21 11:14:16,287 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d643d9d6/98f639caddf94138a25e872cd8624340/FLAG2a6badab6 [2022-07-21 11:14:16,335 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d643d9d6/98f639caddf94138a25e872cd8624340 [2022-07-21 11:14:16,338 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 11:14:16,339 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 11:14:16,342 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 11:14:16,343 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 11:14:16,350 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 11:14:16,351 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:14:16" (1/1) ... [2022-07-21 11:14:16,353 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@156247c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:14:16, skipping insertion in model container [2022-07-21 11:14:16,353 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:14:16" (1/1) ... [2022-07-21 11:14:16,360 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 11:14:16,493 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 11:14:17,655 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] [2022-07-21 11:14:19,126 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:14:19,215 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 11:14:19,368 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] [2022-07-21 11:14:19,577 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) [2022-07-21 11:14:19,611 INFO L158 Benchmark]: Toolchain (without parser) took 3245.15ms. Allocated memory was 54.5MB in the beginning and 174.1MB in the end (delta: 119.5MB). Free memory was 26.5MB in the beginning and 101.4MB in the end (delta: -74.8MB). Peak memory consumption was 58.8MB. Max. memory is 16.1GB. [2022-07-21 11:14:19,611 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 54.5MB. Free memory is still 37.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 11:14:19,612 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3241.39ms. Allocated memory was 54.5MB in the beginning and 174.1MB in the end (delta: 119.5MB). Free memory was 26.2MB in the beginning and 101.4MB in the end (delta: -75.1MB). Peak memory consumption was 58.8MB. Max. memory is 16.1GB. [2022-07-21 11:14:19,613 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 54.5MB. Free memory is still 37.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3241.39ms. Allocated memory was 54.5MB in the beginning and 174.1MB in the end (delta: 119.5MB). Free memory was 26.2MB in the beginning and 101.4MB in the end (delta: -75.1MB). Peak memory consumption was 58.8MB. 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-?-3598765 [2022-07-21 11:14:21,476 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 11:14:21,479 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 11:14:21,522 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 11:14:21,523 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 11:14:21,525 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 11:14:21,529 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 11:14:21,532 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 11:14:21,534 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 11:14:21,539 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 11:14:21,540 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 11:14:21,545 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 11:14:21,545 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 11:14:21,548 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 11:14:21,549 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 11:14:21,552 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 11:14:21,553 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 11:14:21,554 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 11:14:21,556 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 11:14:21,562 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 11:14:21,564 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 11:14:21,566 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 11:14:21,567 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 11:14:21,568 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 11:14:21,570 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 11:14:21,577 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 11:14:21,577 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 11:14:21,578 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 11:14:21,579 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 11:14:21,579 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 11:14:21,580 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 11:14:21,580 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 11:14:21,582 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 11:14:21,583 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 11:14:21,584 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 11:14:21,585 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 11:14:21,586 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 11:14:21,586 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 11:14:21,586 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 11:14:21,587 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 11:14:21,587 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 11:14:21,589 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 11:14:21,597 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-21 11:14:21,641 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 11:14:21,642 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 11:14:21,642 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 11:14:21,642 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 11:14:21,643 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 11:14:21,643 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 11:14:21,644 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 11:14:21,645 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 11:14:21,645 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 11:14:21,646 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 11:14:21,646 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 11:14:21,646 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 11:14:21,647 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 11:14:21,647 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 11:14:21,647 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 11:14:21,648 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 11:14:21,648 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 11:14:21,648 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 11:14:21,648 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 11:14:21,648 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 11:14:21,648 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 11:14:21,648 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 11:14:21,649 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 11:14:21,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:14:21,649 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 11:14:21,649 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 11:14:21,649 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 11:14:21,649 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 11:14:21,649 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 11:14:21,649 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 11:14:21,650 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 11:14:21,650 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 11:14:21,650 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 11:14:21,650 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f81d244572c9a77eee348ee40397ea85f2dfad22a6619aa4d31ee137ff878aa4 [2022-07-21 11:14:21,972 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 11:14:21,994 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 11:14:21,998 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 11:14:21,999 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 11:14:21,999 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 11:14:22,001 INFO L432 ainManager$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 [2022-07-21 11:14:22,063 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/164faaada/4fe8e882e487467583371c3b3dd7b12d/FLAG21ff16717 [2022-07-21 11:14:22,872 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 11:14:22,873 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 [2022-07-21 11:14:22,920 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/164faaada/4fe8e882e487467583371c3b3dd7b12d/FLAG21ff16717 [2022-07-21 11:14:23,409 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/164faaada/4fe8e882e487467583371c3b3dd7b12d [2022-07-21 11:14:23,411 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 11:14:23,412 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 11:14:23,423 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 11:14:23,424 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 11:14:23,426 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 11:14:23,427 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:14:23" (1/1) ... [2022-07-21 11:14:23,428 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ac8e5d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:14:23, skipping insertion in model container [2022-07-21 11:14:23,428 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:14:23" (1/1) ... [2022-07-21 11:14:23,434 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 11:14:23,581 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 11:14:24,667 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] [2022-07-21 11:14:26,014 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:14:26,077 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-21 11:14:26,166 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 11:14:26,262 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] [2022-07-21 11:14:26,408 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:14:26,479 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 11:14:26,651 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] [2022-07-21 11:14:26,866 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:14:26,999 INFO L208 MainTranslator]: Completed translation [2022-07-21 11:14:27,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:14:27 WrapperNode [2022-07-21 11:14:27,000 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 11:14:27,001 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 11:14:27,002 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 11:14:27,002 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 11:14:27,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:14:27" (1/1) ... [2022-07-21 11:14:27,085 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:14:27" (1/1) ... [2022-07-21 11:14:27,256 INFO L137 Inliner]: procedures = 322, calls = 3868, calls flagged for inlining = 135, calls inlined = 131, statements flattened = 6144 [2022-07-21 11:14:27,257 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 11:14:27,257 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 11:14:27,258 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 11:14:27,258 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 11:14:27,265 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:14:27" (1/1) ... [2022-07-21 11:14:27,266 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:14:27" (1/1) ... [2022-07-21 11:14:27,307 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:14:27" (1/1) ... [2022-07-21 11:14:27,308 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:14:27" (1/1) ... [2022-07-21 11:14:27,571 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:14:27" (1/1) ... [2022-07-21 11:14:27,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:14:27" (1/1) ... [2022-07-21 11:14:27,683 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:14:27" (1/1) ... [2022-07-21 11:14:27,754 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 11:14:27,756 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 11:14:27,757 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 11:14:27,757 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 11:14:27,758 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:14:27" (1/1) ... [2022-07-21 11:14:27,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:14:27,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 11:14:27,793 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) [2022-07-21 11:14:27,821 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 [2022-07-21 11:14:27,841 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread8 [2022-07-21 11:14:27,841 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread8 [2022-07-21 11:14:27,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-21 11:14:27,841 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_register_led [2022-07-21 11:14:27,842 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_register_led [2022-07-21 11:14:27,842 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-21 11:14:27,842 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-21 11:14:27,842 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-07-21 11:14:27,842 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-07-21 11:14:27,842 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_add_interface [2022-07-21 11:14:27,843 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_add_interface [2022-07-21 11:14:27,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-21 11:14:27,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-21 11:14:27,843 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite8 [2022-07-21 11:14:27,843 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite8 [2022-07-21 11:14:27,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 11:14:27,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-21 11:14:27,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 11:14:27,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 11:14:27,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 11:14:27,844 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-07-21 11:14:27,844 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-07-21 11:14:27,845 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-07-21 11:14:27,845 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-07-21 11:14:27,845 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2022-07-21 11:14:27,845 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2022-07-21 11:14:27,845 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-07-21 11:14:27,845 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-07-21 11:14:27,846 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2022-07-21 11:14:27,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2022-07-21 11:14:27,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_1 [2022-07-21 11:14:27,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_1 [2022-07-21 11:14:27,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_3 [2022-07-21 11:14:27,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_3 [2022-07-21 11:14:27,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 11:14:27,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 11:14:27,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_2 [2022-07-21 11:14:27,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_2 [2022-07-21 11:14:27,848 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_init [2022-07-21 11:14:27,848 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_init [2022-07-21 11:14:27,848 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_init [2022-07-21 11:14:27,848 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_init [2022-07-21 11:14:27,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-07-21 11:14:27,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-07-21 11:14:27,849 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_tx_status_irqsafe [2022-07-21 11:14:27,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_tx_status_irqsafe [2022-07-21 11:14:27,849 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_b_rf_init [2022-07-21 11:14:27,850 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_b_rf_init [2022-07-21 11:14:27,850 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-21 11:14:27,850 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-21 11:14:27,851 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-07-21 11:14:27,851 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-07-21 11:14:27,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-21 11:14:27,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-21 11:14:27,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-21 11:14:27,852 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-21 11:14:27,852 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-21 11:14:27,852 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-21 11:14:27,853 INFO L130 BoogieDeclarations]: Found specification of procedure fls [2022-07-21 11:14:27,853 INFO L138 BoogieDeclarations]: Found implementation of procedure fls [2022-07-21 11:14:27,853 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_remove_interface [2022-07-21 11:14:27,853 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_remove_interface [2022-07-21 11:14:27,854 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-21 11:14:27,854 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-21 11:14:27,854 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write [2022-07-21 11:14:27,854 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write [2022-07-21 11:14:27,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 11:14:27,854 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_stop [2022-07-21 11:14:27,855 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_stop [2022-07-21 11:14:27,855 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_set_anaparam [2022-07-21 11:14:27,855 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_set_anaparam [2022-07-21 11:14:27,856 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-21 11:14:27,856 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-21 11:14:27,856 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_configure_filter [2022-07-21 11:14:27,856 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_configure_filter [2022-07-21 11:14:27,856 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread32 [2022-07-21 11:14:27,856 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread32 [2022-07-21 11:14:27,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 11:14:27,857 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_rfkill_poll [2022-07-21 11:14:27,857 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_rfkill_poll [2022-07-21 11:14:27,857 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-07-21 11:14:27,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-07-21 11:14:27,857 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-07-21 11:14:27,858 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-21 11:14:27,858 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-21 11:14:27,858 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_rfkill_set_hw_state [2022-07-21 11:14:27,859 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_rfkill_set_hw_state [2022-07-21 11:14:27,859 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2022-07-21 11:14:27,859 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2022-07-21 11:14:27,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-21 11:14:27,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-21 11:14:27,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-21 11:14:27,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 11:14:27,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-21 11:14:27,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 11:14:27,861 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_set_tx_power [2022-07-21 11:14:27,861 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_set_tx_power [2022-07-21 11:14:27,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-21 11:14:27,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-21 11:14:27,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-21 11:14:27,862 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_config [2022-07-21 11:14:27,862 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_config [2022-07-21 11:14:27,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-21 11:14:27,862 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread16 [2022-07-21 11:14:27,863 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread16 [2022-07-21 11:14:27,863 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-07-21 11:14:27,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-07-21 11:14:27,863 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-21 11:14:27,864 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-21 11:14:27,864 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-21 11:14:27,864 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-21 11:14:27,865 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_queue_delayed_work [2022-07-21 11:14:27,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_queue_delayed_work [2022-07-21 11:14:27,867 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite8_idx [2022-07-21 11:14:27,868 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite8_idx [2022-07-21 11:14:27,868 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-21 11:14:27,868 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-21 11:14:27,870 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_is_radio_enabled [2022-07-21 11:14:27,870 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_is_radio_enabled [2022-07-21 11:14:27,870 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_disconnect [2022-07-21 11:14:27,870 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_disconnect [2022-07-21 11:14:27,876 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2022-07-21 11:14:27,877 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2022-07-21 11:14:27,877 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-07-21 11:14:27,877 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-07-21 11:14:27,877 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-21 11:14:27,877 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-21 11:14:27,877 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-07-21 11:14:27,877 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-07-21 11:14:27,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-21 11:14:27,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-21 11:14:27,878 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_tx_rate [2022-07-21 11:14:27,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_tx_rate [2022-07-21 11:14:27,878 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-07-21 11:14:27,878 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-07-21 11:14:27,878 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-21 11:14:27,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-21 11:14:27,879 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_stop [2022-07-21 11:14:27,879 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_stop [2022-07-21 11:14:27,879 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_write_phy [2022-07-21 11:14:27,879 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_write_phy [2022-07-21 11:14:27,879 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_tx [2022-07-21 11:14:27,879 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_tx [2022-07-21 11:14:27,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-21 11:14:27,880 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-21 11:14:27,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2022-07-21 11:14:27,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2022-07-21 11:14:27,880 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_read [2022-07-21 11:14:27,880 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_read [2022-07-21 11:14:27,880 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-07-21 11:14:27,880 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-07-21 11:14:27,880 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_conf_tx [2022-07-21 11:14:27,881 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_conf_tx [2022-07-21 11:14:27,881 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2022-07-21 11:14:27,881 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2022-07-21 11:14:27,881 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-21 11:14:27,881 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-21 11:14:27,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-21 11:14:27,881 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_channel [2022-07-21 11:14:27,882 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_channel [2022-07-21 11:14:27,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-21 11:14:27,882 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_read [2022-07-21 11:14:27,882 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_read [2022-07-21 11:14:27,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-21 11:14:27,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-21 11:14:27,882 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_tx_power [2022-07-21 11:14:27,882 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_tx_power [2022-07-21 11:14:27,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 11:14:27,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 11:14:27,883 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_unregister_led [2022-07-21 11:14:27,883 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_unregister_led [2022-07-21 11:14:27,883 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2022-07-21 11:14:27,883 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_init_urbs [2022-07-21 11:14:27,883 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_init_urbs [2022-07-21 11:14:27,884 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_name [2022-07-21 11:14:27,884 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_name [2022-07-21 11:14:27,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 11:14:27,884 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_bss_info_changed [2022-07-21 11:14:27,884 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_bss_info_changed [2022-07-21 11:14:27,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 11:14:27,884 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-07-21 11:14:27,885 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-07-21 11:14:27,885 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2022-07-21 11:14:27,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2022-07-21 11:14:27,885 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_cck [2022-07-21 11:14:27,885 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_cck [2022-07-21 11:14:27,885 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-21 11:14:27,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-21 11:14:27,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 11:14:27,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-21 11:14:27,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-21 11:14:27,886 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_RXCB [2022-07-21 11:14:27,886 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_RXCB [2022-07-21 11:14:27,886 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 11:14:27,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 11:14:27,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-21 11:14:27,887 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-07-21 11:14:27,887 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-07-21 11:14:27,887 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_rts_cts_rate [2022-07-21 11:14:27,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_rts_cts_rate [2022-07-21 11:14:27,887 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-07-21 11:14:27,887 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-07-21 11:14:27,887 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-07-21 11:14:27,888 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-07-21 11:14:27,888 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_get_tsf [2022-07-21 11:14:27,888 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_get_tsf [2022-07-21 11:14:27,888 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-07-21 11:14:27,888 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-07-21 11:14:27,888 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-07-21 11:14:27,888 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-07-21 11:14:27,888 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-21 11:14:27,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-21 11:14:27,889 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite32_idx [2022-07-21 11:14:27,889 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite32_idx [2022-07-21 11:14:27,889 INFO L130 BoogieDeclarations]: Found specification of procedure skb_unlink [2022-07-21 11:14:27,889 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_unlink [2022-07-21 11:14:27,889 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite32 [2022-07-21 11:14:27,889 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite32 [2022-07-21 11:14:27,890 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite16_idx [2022-07-21 11:14:27,890 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite16_idx [2022-07-21 11:14:27,890 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_cmd_reset [2022-07-21 11:14:27,890 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_cmd_reset [2022-07-21 11:14:27,890 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_ofdm [2022-07-21 11:14:27,890 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_ofdm [2022-07-21 11:14:27,890 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_prepare_multicast [2022-07-21 11:14:27,891 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_prepare_multicast [2022-07-21 11:14:27,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-21 11:14:27,891 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-07-21 11:14:27,891 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-07-21 11:14:27,891 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite16 [2022-07-21 11:14:27,891 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite16 [2022-07-21 11:14:27,891 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-07-21 11:14:27,891 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-07-21 11:14:27,892 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-07-21 11:14:27,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 11:14:27,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 11:14:27,892 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2022-07-21 11:14:27,892 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2022-07-21 11:14:28,762 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 11:14:28,765 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 11:14:31,558 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 11:15:11,574 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 11:15:11,601 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 11:15:11,601 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-07-21 11:15:11,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:15:11 BoogieIcfgContainer [2022-07-21 11:15:11,605 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 11:15:11,607 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 11:15:11,607 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 11:15:11,610 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 11:15:11,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:14:23" (1/3) ... [2022-07-21 11:15:11,615 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5159ac4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:15:11, skipping insertion in model container [2022-07-21 11:15:11,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:14:27" (2/3) ... [2022-07-21 11:15:11,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5159ac4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:15:11, skipping insertion in model container [2022-07-21 11:15:11,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:15:11" (3/3) ... [2022-07-21 11:15:11,618 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 [2022-07-21 11:15:11,637 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 11:15:11,637 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 11:15:11,747 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 11:15:11,752 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@a281453, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@336b4cae [2022-07-21 11:15:11,752 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 11:15:11,762 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) [2022-07-21 11:15:11,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-21 11:15:11,788 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:15:11,788 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] [2022-07-21 11:15:11,789 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:15:11,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:15:11,794 INFO L85 PathProgramCache]: Analyzing trace with hash -2068464976, now seen corresponding path program 1 times [2022-07-21 11:15:11,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:15:11,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [440645922] [2022-07-21 11:15:11,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:15:11,815 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:15:11,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:15:11,817 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) [2022-07-21 11:15:11,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-21 11:15:18,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:15:18,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 3465 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 11:15:18,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:15:18,879 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-07-21 11:15:18,879 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:15:18,880 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:15:18,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [440645922] [2022-07-21 11:15:18,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [440645922] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:15:18,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:15:18,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 11:15:18,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944118600] [2022-07-21 11:15:18,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:15:18,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 11:15:18,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:15:18,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 11:15:18,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 11:15:18,936 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) [2022-07-21 11:15:19,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:15:19,459 INFO L93 Difference]: Finished difference Result 4922 states and 7423 transitions. [2022-07-21 11:15:19,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 11:15:19,463 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 [2022-07-21 11:15:19,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:15:19,512 INFO L225 Difference]: With dead ends: 4922 [2022-07-21 11:15:19,512 INFO L226 Difference]: Without dead ends: 2449 [2022-07-21 11:15:19,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 11:15:19,549 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 [2022-07-21 11:15:19,551 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] [2022-07-21 11:15:19,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2449 states. [2022-07-21 11:15:19,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2449 to 2449. [2022-07-21 11:15:19,784 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) [2022-07-21 11:15:19,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2449 states to 2449 states and 3653 transitions. [2022-07-21 11:15:19,818 INFO L78 Accepts]: Start accepts. Automaton has 2449 states and 3653 transitions. Word has length 67 [2022-07-21 11:15:19,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:15:19,820 INFO L495 AbstractCegarLoop]: Abstraction has 2449 states and 3653 transitions. [2022-07-21 11:15:19,820 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) [2022-07-21 11:15:19,820 INFO L276 IsEmpty]: Start isEmpty. Operand 2449 states and 3653 transitions. [2022-07-21 11:15:19,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-21 11:15:19,823 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:15:19,823 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] [2022-07-21 11:15:20,003 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-21 11:15:20,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:15:20,044 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:15:20,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:15:20,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1269923975, now seen corresponding path program 1 times [2022-07-21 11:15:20,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:15:20,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1665741586] [2022-07-21 11:15:20,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:15:20,048 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:15:20,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:15:20,050 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) [2022-07-21 11:15:20,052 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-21 11:15:27,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:15:27,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 3476 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 11:15:27,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:15:27,606 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-07-21 11:15:27,606 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 11:15:28,122 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-07-21 11:15:28,122 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:15:28,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1665741586] [2022-07-21 11:15:28,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1665741586] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 11:15:28,123 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 11:15:28,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-07-21 11:15:28,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24739619] [2022-07-21 11:15:28,124 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 11:15:28,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 11:15:28,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:15:28,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 11:15:28,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-21 11:15:28,126 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) [2022-07-21 11:15:29,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:15:29,094 INFO L93 Difference]: Finished difference Result 4890 states and 7306 transitions. [2022-07-21 11:15:29,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-21 11:15:29,095 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 [2022-07-21 11:15:29,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:15:29,123 INFO L225 Difference]: With dead ends: 4890 [2022-07-21 11:15:29,123 INFO L226 Difference]: Without dead ends: 2458 [2022-07-21 11:15:29,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2022-07-21 11:15:29,152 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, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 11:15:29,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 10943 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 11:15:29,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2458 states. [2022-07-21 11:15:29,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2458 to 2458. [2022-07-21 11:15:29,270 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) [2022-07-21 11:15:29,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2458 states to 2458 states and 3664 transitions. [2022-07-21 11:15:29,295 INFO L78 Accepts]: Start accepts. Automaton has 2458 states and 3664 transitions. Word has length 68 [2022-07-21 11:15:29,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:15:29,299 INFO L495 AbstractCegarLoop]: Abstraction has 2458 states and 3664 transitions. [2022-07-21 11:15:29,299 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) [2022-07-21 11:15:29,300 INFO L276 IsEmpty]: Start isEmpty. Operand 2458 states and 3664 transitions. [2022-07-21 11:15:29,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-07-21 11:15:29,303 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:15:29,303 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] [2022-07-21 11:15:29,467 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-21 11:15:29,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:15:29,520 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:15:29,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:15:29,520 INFO L85 PathProgramCache]: Analyzing trace with hash 119874800, now seen corresponding path program 2 times [2022-07-21 11:15:29,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:15:29,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1110844098] [2022-07-21 11:15:29,525 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 11:15:29,525 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:15:29,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:15:29,526 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) [2022-07-21 11:15:29,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-21 11:15:35,493 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-21 11:15:35,493 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 11:15:35,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 3346 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 11:15:35,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:15:36,464 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-07-21 11:15:36,465 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:15:36,465 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:15:36,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1110844098] [2022-07-21 11:15:36,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1110844098] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:15:36,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:15:36,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 11:15:36,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745984490] [2022-07-21 11:15:36,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:15:36,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 11:15:36,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:15:36,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 11:15:36,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 11:15:36,467 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) [2022-07-21 11:15:37,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:15:37,482 INFO L93 Difference]: Finished difference Result 7315 states and 10941 transitions. [2022-07-21 11:15:37,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 11:15:37,483 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 [2022-07-21 11:15:37,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:15:37,613 INFO L225 Difference]: With dead ends: 7315 [2022-07-21 11:15:37,613 INFO L226 Difference]: Without dead ends: 4879 [2022-07-21 11:15:37,638 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 [2022-07-21 11:15:37,641 INFO L413 NwaCegarLoop]: 5034 mSDtfsCounter, 3626 mSDsluCounter, 13699 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3626 SdHoareTripleChecker+Valid, 18733 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 [2022-07-21 11:15:37,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3626 Valid, 18733 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 11:15:37,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4879 states. [2022-07-21 11:15:37,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4879 to 4875. [2022-07-21 11:15:37,908 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) [2022-07-21 11:15:37,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4875 states to 4875 states and 7292 transitions. [2022-07-21 11:15:37,965 INFO L78 Accepts]: Start accepts. Automaton has 4875 states and 7292 transitions. Word has length 71 [2022-07-21 11:15:37,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:15:37,966 INFO L495 AbstractCegarLoop]: Abstraction has 4875 states and 7292 transitions. [2022-07-21 11:15:37,966 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) [2022-07-21 11:15:37,966 INFO L276 IsEmpty]: Start isEmpty. Operand 4875 states and 7292 transitions. [2022-07-21 11:15:37,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-07-21 11:15:37,976 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:15:37,976 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] [2022-07-21 11:15:38,117 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-21 11:15:38,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:15:38,196 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:15:38,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:15:38,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1366899849, now seen corresponding path program 1 times [2022-07-21 11:15:38,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:15:38,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [773456247] [2022-07-21 11:15:38,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:15:38,200 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:15:38,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:15:38,201 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) [2022-07-21 11:15:38,202 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-21 11:15:45,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:15:45,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 3679 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-21 11:15:45,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:15:46,180 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-07-21 11:15:46,180 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 11:15:47,704 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-07-21 11:15:47,705 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:15:47,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [773456247] [2022-07-21 11:15:47,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [773456247] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 11:15:47,705 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 11:15:47,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-07-21 11:15:47,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412312793] [2022-07-21 11:15:47,705 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 11:15:47,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-21 11:15:47,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:15:47,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-21 11:15:47,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-07-21 11:15:47,707 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) [2022-07-21 11:15:50,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:15:50,866 INFO L93 Difference]: Finished difference Result 9749 states and 14619 transitions. [2022-07-21 11:15:50,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-21 11:15:50,880 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 [2022-07-21 11:15:50,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:15:50,925 INFO L225 Difference]: With dead ends: 9749 [2022-07-21 11:15:50,925 INFO L226 Difference]: Without dead ends: 4885 [2022-07-21 11:15:50,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=178, Invalid=374, Unknown=0, NotChecked=0, Total=552 [2022-07-21 11:15:50,965 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 [2022-07-21 11:15:50,966 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] [2022-07-21 11:15:50,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4885 states. [2022-07-21 11:15:51,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4885 to 4885. [2022-07-21 11:15:51,199 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) [2022-07-21 11:15:51,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4885 states to 4885 states and 7300 transitions. [2022-07-21 11:15:51,242 INFO L78 Accepts]: Start accepts. Automaton has 4885 states and 7300 transitions. Word has length 129 [2022-07-21 11:15:51,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:15:51,244 INFO L495 AbstractCegarLoop]: Abstraction has 4885 states and 7300 transitions. [2022-07-21 11:15:51,245 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) [2022-07-21 11:15:51,245 INFO L276 IsEmpty]: Start isEmpty. Operand 4885 states and 7300 transitions. [2022-07-21 11:15:51,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-07-21 11:15:51,254 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:15:51,254 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] [2022-07-21 11:15:51,445 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-21 11:15:51,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:15:51,455 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:15:51,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:15:51,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1499053495, now seen corresponding path program 2 times [2022-07-21 11:15:51,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:15:51,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [607282483] [2022-07-21 11:15:51,460 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 11:15:51,460 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:15:51,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:15:51,462 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) [2022-07-21 11:15:51,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-21 11:15:57,685 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-21 11:15:57,685 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 11:15:58,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 3346 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:15:58,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:15:59,145 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-07-21 11:15:59,145 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:15:59,145 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:15:59,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [607282483] [2022-07-21 11:15:59,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [607282483] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:15:59,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:15:59,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:15:59,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981587292] [2022-07-21 11:15:59,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:15:59,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:15:59,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:15:59,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:15:59,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:15:59,147 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) [2022-07-21 11:15:59,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:15:59,846 INFO L93 Difference]: Finished difference Result 14540 states and 21756 transitions. [2022-07-21 11:15:59,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:15:59,847 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 [2022-07-21 11:15:59,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:15:59,961 INFO L225 Difference]: With dead ends: 14540 [2022-07-21 11:15:59,961 INFO L226 Difference]: Without dead ends: 9687 [2022-07-21 11:16:00,007 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 [2022-07-21 11:16:00,008 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, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 11:16:00,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3531 Valid, 8216 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 11:16:00,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9687 states. [2022-07-21 11:16:00,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9687 to 9687. [2022-07-21 11:16:00,513 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) [2022-07-21 11:16:00,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9687 states to 9687 states and 14491 transitions. [2022-07-21 11:16:00,593 INFO L78 Accepts]: Start accepts. Automaton has 9687 states and 14491 transitions. Word has length 133 [2022-07-21 11:16:00,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:16:00,594 INFO L495 AbstractCegarLoop]: Abstraction has 9687 states and 14491 transitions. [2022-07-21 11:16:00,594 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) [2022-07-21 11:16:00,594 INFO L276 IsEmpty]: Start isEmpty. Operand 9687 states and 14491 transitions. [2022-07-21 11:16:00,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-07-21 11:16:00,609 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:16:00,609 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] [2022-07-21 11:16:00,790 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-21 11:16:00,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:16:00,835 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:16:00,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:16:00,836 INFO L85 PathProgramCache]: Analyzing trace with hash -884016191, now seen corresponding path program 1 times [2022-07-21 11:16:00,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:16:00,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [269191318] [2022-07-21 11:16:00,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:16:00,841 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:16:00,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:16:00,843 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) [2022-07-21 11:16:00,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-21 11:16:07,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:16:08,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 3767 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:16:08,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:16:08,351 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2022-07-21 11:16:08,352 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:16:08,352 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:16:08,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [269191318] [2022-07-21 11:16:08,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [269191318] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:16:08,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:16:08,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:16:08,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731499406] [2022-07-21 11:16:08,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:16:08,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:16:08,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:16:08,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:16:08,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:16:08,355 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) [2022-07-21 11:16:09,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:16:09,678 INFO L93 Difference]: Finished difference Result 24543 states and 36808 transitions. [2022-07-21 11:16:09,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:16:09,680 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 [2022-07-21 11:16:09,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:16:09,912 INFO L225 Difference]: With dead ends: 24543 [2022-07-21 11:16:09,913 INFO L226 Difference]: Without dead ends: 14888 [2022-07-21 11:16:09,969 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 [2022-07-21 11:16:09,970 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, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 11:16:09,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2001 Valid, 7804 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 11:16:09,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14888 states. [2022-07-21 11:16:10,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14888 to 14879. [2022-07-21 11:16:10,865 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) [2022-07-21 11:16:11,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14879 states to 14879 states and 22345 transitions. [2022-07-21 11:16:11,024 INFO L78 Accepts]: Start accepts. Automaton has 14879 states and 22345 transitions. Word has length 143 [2022-07-21 11:16:11,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:16:11,024 INFO L495 AbstractCegarLoop]: Abstraction has 14879 states and 22345 transitions. [2022-07-21 11:16:11,025 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) [2022-07-21 11:16:11,025 INFO L276 IsEmpty]: Start isEmpty. Operand 14879 states and 22345 transitions. [2022-07-21 11:16:11,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-21 11:16:11,043 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:16:11,044 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] [2022-07-21 11:16:11,189 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-07-21 11:16:11,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:16:11,259 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:16:11,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:16:11,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1103862230, now seen corresponding path program 1 times [2022-07-21 11:16:11,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:16:11,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1208747445] [2022-07-21 11:16:11,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:16:11,264 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:16:11,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:16:11,265 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) [2022-07-21 11:16:11,266 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-21 11:16:17,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:16:18,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 3891 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:16:18,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:16:19,214 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2022-07-21 11:16:19,215 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:16:19,215 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:16:19,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1208747445] [2022-07-21 11:16:19,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1208747445] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:16:19,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:16:19,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:16:19,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893845819] [2022-07-21 11:16:19,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:16:19,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:16:19,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:16:19,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:16:19,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:16:19,217 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) [2022-07-21 11:16:20,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:16:20,844 INFO L93 Difference]: Finished difference Result 37859 states and 56720 transitions. [2022-07-21 11:16:20,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:16:20,845 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 [2022-07-21 11:16:20,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:16:21,241 INFO L225 Difference]: With dead ends: 37859 [2022-07-21 11:16:21,241 INFO L226 Difference]: Without dead ends: 23012 [2022-07-21 11:16:21,336 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 [2022-07-21 11:16:21,337 INFO L413 NwaCegarLoop]: 6130 mSDtfsCounter, 3514 mSDsluCounter, 3025 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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 [2022-07-21 11:16:21,337 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] [2022-07-21 11:16:21,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23012 states. [2022-07-21 11:16:22,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23012 to 23003. [2022-07-21 11:16:22,688 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) [2022-07-21 11:16:22,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23003 states to 23003 states and 34315 transitions. [2022-07-21 11:16:22,907 INFO L78 Accepts]: Start accepts. Automaton has 23003 states and 34315 transitions. Word has length 187 [2022-07-21 11:16:22,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:16:22,907 INFO L495 AbstractCegarLoop]: Abstraction has 23003 states and 34315 transitions. [2022-07-21 11:16:22,908 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) [2022-07-21 11:16:22,908 INFO L276 IsEmpty]: Start isEmpty. Operand 23003 states and 34315 transitions. [2022-07-21 11:16:22,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-21 11:16:22,920 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:16:22,921 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] [2022-07-21 11:16:23,092 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-21 11:16:23,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:16:23,136 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:16:23,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:16:23,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1119806596, now seen corresponding path program 1 times [2022-07-21 11:16:23,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:16:23,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1484830482] [2022-07-21 11:16:23,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:16:23,139 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:16:23,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:16:23,140 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) [2022-07-21 11:16:23,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-21 11:16:30,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:16:31,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 3891 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:16:31,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:16:31,243 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2022-07-21 11:16:31,244 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:16:31,244 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:16:31,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1484830482] [2022-07-21 11:16:31,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1484830482] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:16:31,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:16:31,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:16:31,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788528340] [2022-07-21 11:16:31,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:16:31,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:16:31,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:16:31,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:16:31,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:16:31,246 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) [2022-07-21 11:16:31,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:16:31,994 INFO L93 Difference]: Finished difference Result 34517 states and 51548 transitions. [2022-07-21 11:16:31,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:16:31,994 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 [2022-07-21 11:16:31,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:16:32,192 INFO L225 Difference]: With dead ends: 34517 [2022-07-21 11:16:32,193 INFO L226 Difference]: Without dead ends: 23019 [2022-07-21 11:16:32,270 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 [2022-07-21 11:16:32,271 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 [2022-07-21 11:16:32,271 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] [2022-07-21 11:16:32,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23019 states. [2022-07-21 11:16:33,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23019 to 23019. [2022-07-21 11:16:33,540 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) [2022-07-21 11:16:33,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23019 states to 23019 states and 34331 transitions. [2022-07-21 11:16:33,790 INFO L78 Accepts]: Start accepts. Automaton has 23019 states and 34331 transitions. Word has length 187 [2022-07-21 11:16:33,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:16:33,791 INFO L495 AbstractCegarLoop]: Abstraction has 23019 states and 34331 transitions. [2022-07-21 11:16:33,791 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) [2022-07-21 11:16:33,791 INFO L276 IsEmpty]: Start isEmpty. Operand 23019 states and 34331 transitions. [2022-07-21 11:16:33,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-21 11:16:33,803 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:16:33,804 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] [2022-07-21 11:16:33,984 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-21 11:16:34,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:16:34,004 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:16:34,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:16:34,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1130499163, now seen corresponding path program 1 times [2022-07-21 11:16:34,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:16:34,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [742256029] [2022-07-21 11:16:34,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:16:34,009 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:16:34,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:16:34,011 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) [2022-07-21 11:16:34,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-21 11:16:42,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:16:42,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 3895 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-21 11:16:42,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:16:44,537 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 178 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2022-07-21 11:16:44,537 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:16:44,538 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:16:44,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [742256029] [2022-07-21 11:16:44,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [742256029] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:16:44,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:16:44,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 11:16:44,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165620487] [2022-07-21 11:16:44,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:16:44,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 11:16:44,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:16:44,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 11:16:44,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-21 11:16:44,539 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) [2022-07-21 11:16:52,172 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:16:54,184 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:17:02,052 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:17:07,751 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:17:09,775 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:17:13,259 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:17:15,275 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:17:19,042 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:17:32,340 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:17:49,993 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:17:56,002 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:17:58,272 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:18:01,246 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:18:03,483 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []