./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 791161d1 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-?-791161d [2022-07-22 23:56:42,874 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 23:56:42,876 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 23:56:42,906 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 23:56:42,908 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 23:56:42,910 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 23:56:42,913 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 23:56:42,918 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 23:56:42,920 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 23:56:42,925 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 23:56:42,926 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 23:56:42,928 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 23:56:42,928 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 23:56:42,930 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 23:56:42,932 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 23:56:42,933 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 23:56:42,934 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 23:56:42,936 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 23:56:42,940 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 23:56:42,944 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 23:56:42,946 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 23:56:42,948 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 23:56:42,949 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 23:56:42,949 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 23:56:42,951 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 23:56:42,953 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 23:56:42,954 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 23:56:42,954 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 23:56:42,955 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 23:56:42,955 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 23:56:42,956 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 23:56:42,956 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 23:56:42,957 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 23:56:42,958 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 23:56:42,959 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 23:56:42,959 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 23:56:42,959 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 23:56:42,960 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 23:56:42,961 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 23:56:42,961 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 23:56:42,961 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 23:56:42,963 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 23:56:42,964 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-22 23:56:42,990 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 23:56:42,991 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 23:56:42,991 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 23:56:42,991 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 23:56:42,992 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 23:56:42,992 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 23:56:42,993 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 23:56:42,993 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 23:56:42,993 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 23:56:42,994 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 23:56:42,994 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 23:56:42,994 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 23:56:42,994 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 23:56:42,994 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 23:56:42,995 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 23:56:42,995 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 23:56:42,995 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 23:56:42,995 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 23:56:42,995 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 23:56:42,995 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 23:56:42,996 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 23:56:42,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 23:56:42,996 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 23:56:42,996 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 23:56:42,996 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 23:56:42,996 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 23:56:42,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 23:56:42,997 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 23:56:42,997 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 23:56:42,997 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 23:56:42,997 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f81d244572c9a77eee348ee40397ea85f2dfad22a6619aa4d31ee137ff878aa4 [2022-07-22 23:56:43,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 23:56:43,262 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 23:56:43,264 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 23:56:43,265 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 23:56:43,265 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 23:56:43,266 INFO L432 ainManager$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 [2022-07-22 23:56:43,314 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7643fb875/3415b29a33d64695b78145458e6c35c6/FLAGda639e80a [2022-07-22 23:56:44,003 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 23:56:44,004 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 [2022-07-22 23:56:44,044 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7643fb875/3415b29a33d64695b78145458e6c35c6/FLAGda639e80a [2022-07-22 23:56:44,341 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7643fb875/3415b29a33d64695b78145458e6c35c6 [2022-07-22 23:56:44,347 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 23:56:44,349 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 23:56:44,355 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 23:56:44,355 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 23:56:44,361 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 23:56:44,362 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:56:44" (1/1) ... [2022-07-22 23:56:44,363 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ac2687b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:56:44, skipping insertion in model container [2022-07-22 23:56:44,363 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:56:44" (1/1) ... [2022-07-22 23:56:44,397 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 23:56:44,600 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 23:56:45,474 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] [2022-07-22 23:56:46,710 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 23:56:46,802 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 23:56:46,913 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] [2022-07-22 23:56:47,033 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) [2022-07-22 23:56:47,040 INFO L158 Benchmark]: Toolchain (without parser) took 2689.03ms. Allocated memory was 107.0MB in the beginning and 285.2MB in the end (delta: 178.3MB). Free memory was 60.7MB in the beginning and 207.0MB in the end (delta: -146.3MB). Peak memory consumption was 71.2MB. Max. memory is 16.1GB. [2022-07-22 23:56:47,041 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 107.0MB. Free memory was 63.9MB in the beginning and 63.8MB in the end (delta: 48.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 23:56:47,042 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2682.51ms. Allocated memory was 107.0MB in the beginning and 285.2MB in the end (delta: 178.3MB). Free memory was 60.7MB in the beginning and 207.0MB in the end (delta: -146.3MB). Peak memory consumption was 71.2MB. Max. memory is 16.1GB. [2022-07-22 23:56:47,043 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 107.0MB. Free memory was 63.9MB in the beginning and 63.8MB in the end (delta: 48.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2682.51ms. Allocated memory was 107.0MB in the beginning and 285.2MB in the end (delta: 178.3MB). Free memory was 60.7MB in the beginning and 207.0MB in the end (delta: -146.3MB). Peak memory consumption was 71.2MB. 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-?-791161d [2022-07-22 23:56:48,769 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 23:56:48,771 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 23:56:48,817 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 23:56:48,818 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 23:56:48,819 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 23:56:48,824 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 23:56:48,826 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 23:56:48,829 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 23:56:48,834 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 23:56:48,835 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 23:56:48,839 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 23:56:48,840 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 23:56:48,841 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 23:56:48,842 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 23:56:48,845 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 23:56:48,846 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 23:56:48,848 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 23:56:48,849 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 23:56:48,855 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 23:56:48,856 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 23:56:48,857 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 23:56:48,858 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 23:56:48,859 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 23:56:48,860 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 23:56:48,863 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 23:56:48,863 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 23:56:48,863 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 23:56:48,864 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 23:56:48,864 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 23:56:48,865 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 23:56:48,865 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 23:56:48,866 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 23:56:48,867 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 23:56:48,868 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 23:56:48,869 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 23:56:48,869 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 23:56:48,869 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 23:56:48,869 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 23:56:48,869 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 23:56:48,870 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 23:56:48,871 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 23:56:48,874 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-22 23:56:48,902 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 23:56:48,903 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 23:56:48,903 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 23:56:48,903 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 23:56:48,904 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 23:56:48,904 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 23:56:48,905 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 23:56:48,905 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 23:56:48,905 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 23:56:48,906 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 23:56:48,906 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 23:56:48,906 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 23:56:48,907 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 23:56:48,907 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 23:56:48,907 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-22 23:56:48,907 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-22 23:56:48,907 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-22 23:56:48,907 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 23:56:48,908 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 23:56:48,908 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 23:56:48,908 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 23:56:48,908 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 23:56:48,908 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 23:56:48,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 23:56:48,908 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 23:56:48,909 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 23:56:48,909 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 23:56:48,909 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-22 23:56:48,909 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-22 23:56:48,909 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 23:56:48,909 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 23:56:48,910 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 23:56:48,910 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-22 23:56:48,910 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f81d244572c9a77eee348ee40397ea85f2dfad22a6619aa4d31ee137ff878aa4 [2022-07-22 23:56:49,179 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 23:56:49,194 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 23:56:49,196 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 23:56:49,197 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 23:56:49,198 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 23:56:49,199 INFO L432 ainManager$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 [2022-07-22 23:56:49,250 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fee335d2/2ec761111b4f42eeb4a2e557f4a10318/FLAGb221df110 [2022-07-22 23:56:49,950 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 23:56:49,951 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 [2022-07-22 23:56:49,990 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fee335d2/2ec761111b4f42eeb4a2e557f4a10318/FLAGb221df110 [2022-07-22 23:56:50,275 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fee335d2/2ec761111b4f42eeb4a2e557f4a10318 [2022-07-22 23:56:50,277 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 23:56:50,279 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 23:56:50,279 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 23:56:50,280 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 23:56:50,282 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 23:56:50,283 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:56:50" (1/1) ... [2022-07-22 23:56:50,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@399d1baa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:56:50, skipping insertion in model container [2022-07-22 23:56:50,284 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:56:50" (1/1) ... [2022-07-22 23:56:50,289 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 23:56:50,395 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 23:56:51,092 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] [2022-07-22 23:56:52,076 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 23:56:52,161 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-22 23:56:52,261 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 23:56:52,365 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] [2022-07-22 23:56:52,534 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 23:56:52,603 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 23:56:52,821 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] [2022-07-22 23:56:52,929 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 23:56:53,008 INFO L208 MainTranslator]: Completed translation [2022-07-22 23:56:53,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:56:53 WrapperNode [2022-07-22 23:56:53,009 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 23:56:53,009 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 23:56:53,010 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 23:56:53,010 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 23:56:53,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:56:53" (1/1) ... [2022-07-22 23:56:53,078 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:56:53" (1/1) ... [2022-07-22 23:56:53,228 INFO L137 Inliner]: procedures = 322, calls = 3868, calls flagged for inlining = 135, calls inlined = 131, statements flattened = 6144 [2022-07-22 23:56:53,229 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 23:56:53,229 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 23:56:53,230 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 23:56:53,230 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 23:56:53,243 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:56:53" (1/1) ... [2022-07-22 23:56:53,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:56:53" (1/1) ... [2022-07-22 23:56:53,275 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:56:53" (1/1) ... [2022-07-22 23:56:53,276 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:56:53" (1/1) ... [2022-07-22 23:56:53,391 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:56:53" (1/1) ... [2022-07-22 23:56:53,413 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:56:53" (1/1) ... [2022-07-22 23:56:53,441 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:56:53" (1/1) ... [2022-07-22 23:56:53,472 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 23:56:53,473 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 23:56:53,474 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 23:56:53,474 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 23:56:53,474 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:56:53" (1/1) ... [2022-07-22 23:56:53,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 23:56:53,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 23:56:53,497 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) [2022-07-22 23:56:53,530 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 [2022-07-22 23:56:53,542 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread8 [2022-07-22 23:56:53,542 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread8 [2022-07-22 23:56:53,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-22 23:56:53,542 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_register_led [2022-07-22 23:56:53,543 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_register_led [2022-07-22 23:56:53,543 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-22 23:56:53,543 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-22 23:56:53,543 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-07-22 23:56:53,543 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-07-22 23:56:53,543 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_add_interface [2022-07-22 23:56:53,543 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_add_interface [2022-07-22 23:56:53,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-22 23:56:53,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-22 23:56:53,544 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite8 [2022-07-22 23:56:53,544 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite8 [2022-07-22 23:56:53,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-22 23:56:53,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-22 23:56:53,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-22 23:56:53,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-22 23:56:53,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-22 23:56:53,545 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-07-22 23:56:53,545 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-07-22 23:56:53,545 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-07-22 23:56:53,545 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-07-22 23:56:53,545 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2022-07-22 23:56:53,545 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2022-07-22 23:56:53,545 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-07-22 23:56:53,545 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-07-22 23:56:53,546 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2022-07-22 23:56:53,546 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2022-07-22 23:56:53,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_1 [2022-07-22 23:56:53,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_1 [2022-07-22 23:56:53,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_3 [2022-07-22 23:56:53,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_3 [2022-07-22 23:56:53,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-22 23:56:53,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-22 23:56:53,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_2 [2022-07-22 23:56:53,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_2 [2022-07-22 23:56:53,548 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_init [2022-07-22 23:56:53,548 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_init [2022-07-22 23:56:53,548 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_init [2022-07-22 23:56:53,548 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_init [2022-07-22 23:56:53,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-07-22 23:56:53,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-07-22 23:56:53,548 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_tx_status_irqsafe [2022-07-22 23:56:53,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_tx_status_irqsafe [2022-07-22 23:56:53,549 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_b_rf_init [2022-07-22 23:56:53,549 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_b_rf_init [2022-07-22 23:56:53,549 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-22 23:56:53,550 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-22 23:56:53,550 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-07-22 23:56:53,550 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-07-22 23:56:53,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-22 23:56:53,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-22 23:56:53,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-22 23:56:53,551 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-22 23:56:53,551 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-22 23:56:53,551 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-22 23:56:53,551 INFO L130 BoogieDeclarations]: Found specification of procedure fls [2022-07-22 23:56:53,552 INFO L138 BoogieDeclarations]: Found implementation of procedure fls [2022-07-22 23:56:53,552 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_remove_interface [2022-07-22 23:56:53,552 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_remove_interface [2022-07-22 23:56:53,552 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-22 23:56:53,552 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-22 23:56:53,552 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write [2022-07-22 23:56:53,552 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write [2022-07-22 23:56:53,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 23:56:53,553 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_stop [2022-07-22 23:56:53,553 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_stop [2022-07-22 23:56:53,553 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_set_anaparam [2022-07-22 23:56:53,553 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_set_anaparam [2022-07-22 23:56:53,553 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-22 23:56:53,553 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-22 23:56:53,553 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_configure_filter [2022-07-22 23:56:53,554 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_configure_filter [2022-07-22 23:56:53,554 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread32 [2022-07-22 23:56:53,554 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread32 [2022-07-22 23:56:53,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-22 23:56:53,554 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_rfkill_poll [2022-07-22 23:56:53,554 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_rfkill_poll [2022-07-22 23:56:53,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-07-22 23:56:53,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-07-22 23:56:53,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-07-22 23:56:53,555 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-22 23:56:53,555 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-22 23:56:53,555 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_rfkill_set_hw_state [2022-07-22 23:56:53,555 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_rfkill_set_hw_state [2022-07-22 23:56:53,556 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2022-07-22 23:56:53,556 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2022-07-22 23:56:53,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-22 23:56:53,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-22 23:56:53,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-22 23:56:53,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 23:56:53,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-22 23:56:53,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-22 23:56:53,558 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_set_tx_power [2022-07-22 23:56:53,558 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_set_tx_power [2022-07-22 23:56:53,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-22 23:56:53,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-22 23:56:53,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-22 23:56:53,558 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_config [2022-07-22 23:56:53,558 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_config [2022-07-22 23:56:53,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-22 23:56:53,559 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread16 [2022-07-22 23:56:53,559 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread16 [2022-07-22 23:56:53,559 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-07-22 23:56:53,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-07-22 23:56:53,559 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-22 23:56:53,559 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-22 23:56:53,560 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-22 23:56:53,560 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-22 23:56:53,560 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_queue_delayed_work [2022-07-22 23:56:53,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_queue_delayed_work [2022-07-22 23:56:53,562 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite8_idx [2022-07-22 23:56:53,562 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite8_idx [2022-07-22 23:56:53,563 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-22 23:56:53,563 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-22 23:56:53,564 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_is_radio_enabled [2022-07-22 23:56:53,564 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_is_radio_enabled [2022-07-22 23:56:53,564 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_disconnect [2022-07-22 23:56:53,564 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_disconnect [2022-07-22 23:56:53,568 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2022-07-22 23:56:53,568 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2022-07-22 23:56:53,569 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-07-22 23:56:53,569 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-07-22 23:56:53,569 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-22 23:56:53,569 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-22 23:56:53,569 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-07-22 23:56:53,569 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-07-22 23:56:53,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-22 23:56:53,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-22 23:56:53,569 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_tx_rate [2022-07-22 23:56:53,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_tx_rate [2022-07-22 23:56:53,570 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-07-22 23:56:53,570 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-07-22 23:56:53,570 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-22 23:56:53,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-22 23:56:53,570 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_stop [2022-07-22 23:56:53,570 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_stop [2022-07-22 23:56:53,570 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_write_phy [2022-07-22 23:56:53,570 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_write_phy [2022-07-22 23:56:53,571 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_tx [2022-07-22 23:56:53,571 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_tx [2022-07-22 23:56:53,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-22 23:56:53,571 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-22 23:56:53,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2022-07-22 23:56:53,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2022-07-22 23:56:53,571 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_read [2022-07-22 23:56:53,571 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_read [2022-07-22 23:56:53,571 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-07-22 23:56:53,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-07-22 23:56:53,572 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_conf_tx [2022-07-22 23:56:53,572 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_conf_tx [2022-07-22 23:56:53,572 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2022-07-22 23:56:53,572 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2022-07-22 23:56:53,572 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-22 23:56:53,572 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-22 23:56:53,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-22 23:56:53,573 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_channel [2022-07-22 23:56:53,573 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_channel [2022-07-22 23:56:53,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-22 23:56:53,573 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_read [2022-07-22 23:56:53,573 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_read [2022-07-22 23:56:53,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-22 23:56:53,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-22 23:56:53,574 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_tx_power [2022-07-22 23:56:53,574 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_tx_power [2022-07-22 23:56:53,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-22 23:56:53,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-22 23:56:53,574 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_unregister_led [2022-07-22 23:56:53,574 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_unregister_led [2022-07-22 23:56:53,575 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2022-07-22 23:56:53,575 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_init_urbs [2022-07-22 23:56:53,575 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_init_urbs [2022-07-22 23:56:53,575 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_name [2022-07-22 23:56:53,575 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_name [2022-07-22 23:56:53,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-22 23:56:53,575 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_bss_info_changed [2022-07-22 23:56:53,575 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_bss_info_changed [2022-07-22 23:56:53,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 23:56:53,576 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-07-22 23:56:53,576 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-07-22 23:56:53,576 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2022-07-22 23:56:53,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2022-07-22 23:56:53,576 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_cck [2022-07-22 23:56:53,576 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_cck [2022-07-22 23:56:53,576 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-22 23:56:53,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-22 23:56:53,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-22 23:56:53,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-22 23:56:53,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-22 23:56:53,577 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_RXCB [2022-07-22 23:56:53,577 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_RXCB [2022-07-22 23:56:53,577 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-22 23:56:53,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-22 23:56:53,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-22 23:56:53,577 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-07-22 23:56:53,577 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-07-22 23:56:53,577 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_rts_cts_rate [2022-07-22 23:56:53,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_rts_cts_rate [2022-07-22 23:56:53,578 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-07-22 23:56:53,578 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-07-22 23:56:53,578 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-07-22 23:56:53,578 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-07-22 23:56:53,578 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_get_tsf [2022-07-22 23:56:53,578 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_get_tsf [2022-07-22 23:56:53,578 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-07-22 23:56:53,578 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-07-22 23:56:53,579 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-07-22 23:56:53,579 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-07-22 23:56:53,579 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-22 23:56:53,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-22 23:56:53,579 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite32_idx [2022-07-22 23:56:53,579 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite32_idx [2022-07-22 23:56:53,579 INFO L130 BoogieDeclarations]: Found specification of procedure skb_unlink [2022-07-22 23:56:53,579 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_unlink [2022-07-22 23:56:53,579 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite32 [2022-07-22 23:56:53,580 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite32 [2022-07-22 23:56:53,580 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite16_idx [2022-07-22 23:56:53,580 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite16_idx [2022-07-22 23:56:53,580 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_cmd_reset [2022-07-22 23:56:53,580 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_cmd_reset [2022-07-22 23:56:53,580 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_ofdm [2022-07-22 23:56:53,580 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_ofdm [2022-07-22 23:56:53,580 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_prepare_multicast [2022-07-22 23:56:53,580 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_prepare_multicast [2022-07-22 23:56:53,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-22 23:56:53,581 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-07-22 23:56:53,581 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-07-22 23:56:53,581 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite16 [2022-07-22 23:56:53,581 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite16 [2022-07-22 23:56:53,581 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-07-22 23:56:53,581 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-07-22 23:56:53,581 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-07-22 23:56:53,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 23:56:53,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 23:56:53,582 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2022-07-22 23:56:53,582 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2022-07-22 23:56:54,267 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 23:56:54,270 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 23:56:57,127 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-22 23:57:36,576 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 23:57:36,590 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 23:57:36,591 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-07-22 23:57:36,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:57:36 BoogieIcfgContainer [2022-07-22 23:57:36,594 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 23:57:36,596 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 23:57:36,596 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 23:57:36,598 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 23:57:36,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 11:56:50" (1/3) ... [2022-07-22 23:57:36,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14b172e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 11:57:36, skipping insertion in model container [2022-07-22 23:57:36,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:56:53" (2/3) ... [2022-07-22 23:57:36,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14b172e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 11:57:36, skipping insertion in model container [2022-07-22 23:57:36,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:57:36" (3/3) ... [2022-07-22 23:57:36,600 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 [2022-07-22 23:57:36,609 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 23:57:36,610 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 23:57:36,689 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 23:57:36,694 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@2ca35855, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@66425165 [2022-07-22 23:57:36,694 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 23:57:36,703 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) [2022-07-22 23:57:36,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-22 23:57:36,721 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:57:36,722 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] [2022-07-22 23:57:36,722 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:57:36,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:57:36,726 INFO L85 PathProgramCache]: Analyzing trace with hash -2068464976, now seen corresponding path program 1 times [2022-07-22 23:57:36,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:57:36,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2089332111] [2022-07-22 23:57:36,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:57:36,744 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:57:36,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:57:36,761 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) [2022-07-22 23:57:36,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-22 23:57:42,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:57:43,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 3465 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 23:57:43,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:57:43,355 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-07-22 23:57:43,355 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:57:43,356 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:57:43,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2089332111] [2022-07-22 23:57:43,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2089332111] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:57:43,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:57:43,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 23:57:43,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778731831] [2022-07-22 23:57:43,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:57:43,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 23:57:43,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:57:43,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 23:57:43,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 23:57:43,383 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) [2022-07-22 23:57:43,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:57:43,735 INFO L93 Difference]: Finished difference Result 4922 states and 7423 transitions. [2022-07-22 23:57:43,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 23:57:43,738 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 [2022-07-22 23:57:43,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:57:43,763 INFO L225 Difference]: With dead ends: 4922 [2022-07-22 23:57:43,763 INFO L226 Difference]: Without dead ends: 2449 [2022-07-22 23:57:43,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 23:57:43,789 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 [2022-07-22 23:57:43,789 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] [2022-07-22 23:57:43,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2449 states. [2022-07-22 23:57:43,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2449 to 2449. [2022-07-22 23:57:43,955 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) [2022-07-22 23:57:43,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2449 states to 2449 states and 3653 transitions. [2022-07-22 23:57:43,980 INFO L78 Accepts]: Start accepts. Automaton has 2449 states and 3653 transitions. Word has length 67 [2022-07-22 23:57:43,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:57:43,981 INFO L495 AbstractCegarLoop]: Abstraction has 2449 states and 3653 transitions. [2022-07-22 23:57:43,982 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) [2022-07-22 23:57:43,982 INFO L276 IsEmpty]: Start isEmpty. Operand 2449 states and 3653 transitions. [2022-07-22 23:57:43,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-22 23:57:43,987 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:57:43,987 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] [2022-07-22 23:57:44,093 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-22 23:57:44,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:57:44,214 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:57:44,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:57:44,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1269923975, now seen corresponding path program 1 times [2022-07-22 23:57:44,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:57:44,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [888804461] [2022-07-22 23:57:44,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:57:44,218 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:57:44,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:57:44,222 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) [2022-07-22 23:57:44,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-22 23:57:50,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:57:51,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 3476 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 23:57:51,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:57:51,533 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-07-22 23:57:51,533 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 23:57:52,071 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-07-22 23:57:52,071 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:57:52,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [888804461] [2022-07-22 23:57:52,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [888804461] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 23:57:52,071 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 23:57:52,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-07-22 23:57:52,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314974639] [2022-07-22 23:57:52,071 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 23:57:52,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 23:57:52,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:57:52,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 23:57:52,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-22 23:57:52,073 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) [2022-07-22 23:57:52,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:57:52,984 INFO L93 Difference]: Finished difference Result 4890 states and 7306 transitions. [2022-07-22 23:57:52,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-22 23:57:52,985 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 [2022-07-22 23:57:52,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:57:53,005 INFO L225 Difference]: With dead ends: 4890 [2022-07-22 23:57:53,005 INFO L226 Difference]: Without dead ends: 2458 [2022-07-22 23:57:53,025 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 [2022-07-22 23:57:53,026 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 [2022-07-22 23:57:53,026 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] [2022-07-22 23:57:53,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2458 states. [2022-07-22 23:57:53,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2458 to 2458. [2022-07-22 23:57:53,112 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) [2022-07-22 23:57:53,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2458 states to 2458 states and 3664 transitions. [2022-07-22 23:57:53,126 INFO L78 Accepts]: Start accepts. Automaton has 2458 states and 3664 transitions. Word has length 68 [2022-07-22 23:57:53,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:57:53,127 INFO L495 AbstractCegarLoop]: Abstraction has 2458 states and 3664 transitions. [2022-07-22 23:57:53,127 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) [2022-07-22 23:57:53,127 INFO L276 IsEmpty]: Start isEmpty. Operand 2458 states and 3664 transitions. [2022-07-22 23:57:53,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-07-22 23:57:53,128 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:57:53,129 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] [2022-07-22 23:57:53,254 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-22 23:57:53,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:57:53,343 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:57:53,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:57:53,344 INFO L85 PathProgramCache]: Analyzing trace with hash 119874800, now seen corresponding path program 2 times [2022-07-22 23:57:53,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:57:53,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2013141291] [2022-07-22 23:57:53,348 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 23:57:53,348 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:57:53,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:57:53,354 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) [2022-07-22 23:57:53,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-22 23:57:59,333 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-22 23:57:59,333 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 23:57:59,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 3346 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 23:57:59,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:58:00,173 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-07-22 23:58:00,173 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:58:00,173 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:58:00,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2013141291] [2022-07-22 23:58:00,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2013141291] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:58:00,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:58:00,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 23:58:00,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98675442] [2022-07-22 23:58:00,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:58:00,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 23:58:00,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:58:00,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 23:58:00,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 23:58:00,175 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) [2022-07-22 23:58:01,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:58:01,203 INFO L93 Difference]: Finished difference Result 7315 states and 10941 transitions. [2022-07-22 23:58:01,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 23:58:01,203 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 [2022-07-22 23:58:01,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:58:01,254 INFO L225 Difference]: With dead ends: 7315 [2022-07-22 23:58:01,255 INFO L226 Difference]: Without dead ends: 4879 [2022-07-22 23:58:01,283 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 [2022-07-22 23:58:01,285 INFO L413 NwaCegarLoop]: 5039 mSDtfsCounter, 3626 mSDsluCounter, 13709 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3626 SdHoareTripleChecker+Valid, 18748 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 [2022-07-22 23:58:01,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3626 Valid, 18748 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-22 23:58:01,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4879 states. [2022-07-22 23:58:01,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4879 to 4875. [2022-07-22 23:58:01,521 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) [2022-07-22 23:58:01,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4875 states to 4875 states and 7292 transitions. [2022-07-22 23:58:01,552 INFO L78 Accepts]: Start accepts. Automaton has 4875 states and 7292 transitions. Word has length 71 [2022-07-22 23:58:01,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:58:01,553 INFO L495 AbstractCegarLoop]: Abstraction has 4875 states and 7292 transitions. [2022-07-22 23:58:01,553 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) [2022-07-22 23:58:01,553 INFO L276 IsEmpty]: Start isEmpty. Operand 4875 states and 7292 transitions. [2022-07-22 23:58:01,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-07-22 23:58:01,560 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:58:01,560 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] [2022-07-22 23:58:01,692 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-07-22 23:58:01,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:58:01,783 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:58:01,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:58:01,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1366899849, now seen corresponding path program 1 times [2022-07-22 23:58:01,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:58:01,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1434512505] [2022-07-22 23:58:01,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:58:01,787 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:58:01,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:58:01,792 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) [2022-07-22 23:58:01,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-22 23:58:08,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:58:09,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 3679 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-22 23:58:09,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:58:09,569 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-07-22 23:58:09,569 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 23:58:10,928 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-07-22 23:58:10,928 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:58:10,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1434512505] [2022-07-22 23:58:10,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1434512505] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 23:58:10,928 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 23:58:10,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-07-22 23:58:10,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409630246] [2022-07-22 23:58:10,928 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 23:58:10,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-22 23:58:10,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:58:10,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-22 23:58:10,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-07-22 23:58:10,930 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) [2022-07-22 23:58:13,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:58:13,849 INFO L93 Difference]: Finished difference Result 9749 states and 14619 transitions. [2022-07-22 23:58:13,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-22 23:58:13,860 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 [2022-07-22 23:58:13,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:58:13,900 INFO L225 Difference]: With dead ends: 9749 [2022-07-22 23:58:13,900 INFO L226 Difference]: Without dead ends: 4885 [2022-07-22 23:58:13,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=178, Invalid=374, Unknown=0, NotChecked=0, Total=552 [2022-07-22 23:58:13,939 INFO L413 NwaCegarLoop]: 3650 mSDtfsCounter, 29 mSDsluCounter, 25524 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s 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, 1.3s IncrementalHoareTripleChecker+Time [2022-07-22 23:58:13,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 29174 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-22 23:58:13,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4885 states. [2022-07-22 23:58:14,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4885 to 4885. [2022-07-22 23:58:14,129 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) [2022-07-22 23:58:14,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4885 states to 4885 states and 7300 transitions. [2022-07-22 23:58:14,162 INFO L78 Accepts]: Start accepts. Automaton has 4885 states and 7300 transitions. Word has length 129 [2022-07-22 23:58:14,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:58:14,164 INFO L495 AbstractCegarLoop]: Abstraction has 4885 states and 7300 transitions. [2022-07-22 23:58:14,165 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) [2022-07-22 23:58:14,165 INFO L276 IsEmpty]: Start isEmpty. Operand 4885 states and 7300 transitions. [2022-07-22 23:58:14,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-07-22 23:58:14,173 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:58:14,174 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] [2022-07-22 23:58:14,303 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-07-22 23:58:14,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:58:14,399 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:58:14,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:58:14,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1499053495, now seen corresponding path program 2 times [2022-07-22 23:58:14,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:58:14,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [841551274] [2022-07-22 23:58:14,403 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 23:58:14,403 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:58:14,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:58:14,405 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) [2022-07-22 23:58:14,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-22 23:58:20,805 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-22 23:58:20,805 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 23:58:21,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 3346 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 23:58:21,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:58:22,219 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-07-22 23:58:22,219 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:58:22,219 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:58:22,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [841551274] [2022-07-22 23:58:22,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [841551274] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:58:22,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:58:22,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 23:58:22,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001165415] [2022-07-22 23:58:22,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:58:22,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:58:22,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:58:22,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:58:22,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:58:22,221 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) [2022-07-22 23:58:22,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:58:22,813 INFO L93 Difference]: Finished difference Result 14540 states and 21756 transitions. [2022-07-22 23:58:22,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:58:22,814 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 [2022-07-22 23:58:22,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:58:22,904 INFO L225 Difference]: With dead ends: 14540 [2022-07-22 23:58:22,904 INFO L226 Difference]: Without dead ends: 9687 [2022-07-22 23:58:22,944 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 [2022-07-22 23:58:22,944 INFO L413 NwaCegarLoop]: 4583 mSDtfsCounter, 3531 mSDsluCounter, 3633 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3531 SdHoareTripleChecker+Valid, 8216 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 23:58:22,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3531 Valid, 8216 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 23:58:22,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9687 states. [2022-07-22 23:58:23,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9687 to 9687. [2022-07-22 23:58:23,394 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) [2022-07-22 23:58:23,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9687 states to 9687 states and 14491 transitions. [2022-07-22 23:58:23,473 INFO L78 Accepts]: Start accepts. Automaton has 9687 states and 14491 transitions. Word has length 133 [2022-07-22 23:58:23,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:58:23,473 INFO L495 AbstractCegarLoop]: Abstraction has 9687 states and 14491 transitions. [2022-07-22 23:58:23,473 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) [2022-07-22 23:58:23,474 INFO L276 IsEmpty]: Start isEmpty. Operand 9687 states and 14491 transitions. [2022-07-22 23:58:23,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-07-22 23:58:23,481 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:58:23,481 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] [2022-07-22 23:58:23,603 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-22 23:58:23,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:58:23,707 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:58:23,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:58:23,708 INFO L85 PathProgramCache]: Analyzing trace with hash -884016191, now seen corresponding path program 1 times [2022-07-22 23:58:23,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:58:23,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [992272536] [2022-07-22 23:58:23,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:58:23,711 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:58:23,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:58:23,712 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) [2022-07-22 23:58:23,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-22 23:58:29,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:58:30,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 3767 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 23:58:30,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:58:30,354 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2022-07-22 23:58:30,354 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:58:30,355 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:58:30,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [992272536] [2022-07-22 23:58:30,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [992272536] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:58:30,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:58:30,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 23:58:30,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319518988] [2022-07-22 23:58:30,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:58:30,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:58:30,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:58:30,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:58:30,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:58:30,356 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) [2022-07-22 23:58:31,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:58:31,678 INFO L93 Difference]: Finished difference Result 24543 states and 36808 transitions. [2022-07-22 23:58:31,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:58:31,678 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 [2022-07-22 23:58:31,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:58:31,785 INFO L225 Difference]: With dead ends: 24543 [2022-07-22 23:58:31,785 INFO L226 Difference]: Without dead ends: 14888 [2022-07-22 23:58:31,846 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 [2022-07-22 23:58:31,848 INFO L413 NwaCegarLoop]: 4249 mSDtfsCounter, 2001 mSDsluCounter, 3555 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-07-22 23:58:31,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2001 Valid, 7804 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-22 23:58:31,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14888 states. [2022-07-22 23:58:32,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14888 to 14879. [2022-07-22 23:58:32,542 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) [2022-07-22 23:58:32,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14879 states to 14879 states and 22345 transitions. [2022-07-22 23:58:32,679 INFO L78 Accepts]: Start accepts. Automaton has 14879 states and 22345 transitions. Word has length 143 [2022-07-22 23:58:32,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:58:32,681 INFO L495 AbstractCegarLoop]: Abstraction has 14879 states and 22345 transitions. [2022-07-22 23:58:32,681 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) [2022-07-22 23:58:32,681 INFO L276 IsEmpty]: Start isEmpty. Operand 14879 states and 22345 transitions. [2022-07-22 23:58:32,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-22 23:58:32,697 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:58:32,697 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] [2022-07-22 23:58:32,830 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-22 23:58:32,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:58:32,923 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:58:32,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:58:32,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1103862230, now seen corresponding path program 1 times [2022-07-22 23:58:32,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:58:32,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1458314607] [2022-07-22 23:58:32,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:58:32,927 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:58:32,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:58:32,929 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) [2022-07-22 23:58:32,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-22 23:58:39,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:58:40,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 3891 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 23:58:40,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:58:41,206 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2022-07-22 23:58:41,207 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:58:41,207 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:58:41,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1458314607] [2022-07-22 23:58:41,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1458314607] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:58:41,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:58:41,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 23:58:41,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559878059] [2022-07-22 23:58:41,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:58:41,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:58:41,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:58:41,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:58:41,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:58:41,208 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) [2022-07-22 23:58:43,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:58:43,057 INFO L93 Difference]: Finished difference Result 37859 states and 56720 transitions. [2022-07-22 23:58:43,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:58:43,058 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 [2022-07-22 23:58:43,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:58:43,479 INFO L225 Difference]: With dead ends: 37859 [2022-07-22 23:58:43,479 INFO L226 Difference]: Without dead ends: 23012 [2022-07-22 23:58:43,563 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 [2022-07-22 23:58:43,564 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, 1.0s IncrementalHoareTripleChecker+Time [2022-07-22 23:58:43,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3514 Valid, 9155 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-22 23:58:43,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23012 states. [2022-07-22 23:58:44,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23012 to 23003. [2022-07-22 23:58:44,681 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) [2022-07-22 23:58:44,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23003 states to 23003 states and 34315 transitions. [2022-07-22 23:58:44,909 INFO L78 Accepts]: Start accepts. Automaton has 23003 states and 34315 transitions. Word has length 187 [2022-07-22 23:58:44,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:58:44,909 INFO L495 AbstractCegarLoop]: Abstraction has 23003 states and 34315 transitions. [2022-07-22 23:58:44,910 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) [2022-07-22 23:58:44,910 INFO L276 IsEmpty]: Start isEmpty. Operand 23003 states and 34315 transitions. [2022-07-22 23:58:44,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-22 23:58:44,922 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:58:44,922 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] [2022-07-22 23:58:45,080 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-22 23:58:45,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:58:45,143 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:58:45,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:58:45,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1119806596, now seen corresponding path program 1 times [2022-07-22 23:58:45,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:58:45,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1970891818] [2022-07-22 23:58:45,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:58:45,148 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:58:45,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:58:45,156 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) [2022-07-22 23:58:45,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-22 23:58:53,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:58:53,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 3891 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 23:58:53,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:58:53,621 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2022-07-22 23:58:53,621 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:58:53,621 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:58:53,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1970891818] [2022-07-22 23:58:53,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1970891818] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:58:53,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:58:53,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 23:58:53,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125476458] [2022-07-22 23:58:53,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:58:53,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:58:53,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:58:53,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:58:53,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:58:53,622 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) [2022-07-22 23:58:54,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:58:54,292 INFO L93 Difference]: Finished difference Result 34517 states and 51548 transitions. [2022-07-22 23:58:54,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:58:54,293 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 [2022-07-22 23:58:54,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:58:54,474 INFO L225 Difference]: With dead ends: 34517 [2022-07-22 23:58:54,474 INFO L226 Difference]: Without dead ends: 23019 [2022-07-22 23:58:54,556 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 [2022-07-22 23:58:54,556 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 [2022-07-22 23:58:54,557 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] [2022-07-22 23:58:54,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23019 states. [2022-07-22 23:58:55,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23019 to 23019. [2022-07-22 23:58:55,513 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) [2022-07-22 23:58:55,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23019 states to 23019 states and 34331 transitions. [2022-07-22 23:58:55,679 INFO L78 Accepts]: Start accepts. Automaton has 23019 states and 34331 transitions. Word has length 187 [2022-07-22 23:58:55,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:58:55,680 INFO L495 AbstractCegarLoop]: Abstraction has 23019 states and 34331 transitions. [2022-07-22 23:58:55,680 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) [2022-07-22 23:58:55,680 INFO L276 IsEmpty]: Start isEmpty. Operand 23019 states and 34331 transitions. [2022-07-22 23:58:55,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-22 23:58:55,691 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:58:55,691 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] [2022-07-22 23:58:55,813 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-22 23:58:55,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:58:55,911 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:58:55,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:58:55,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1130499163, now seen corresponding path program 1 times [2022-07-22 23:58:55,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:58:55,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1904873488] [2022-07-22 23:58:55,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:58:55,915 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:58:55,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:58:55,916 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) [2022-07-22 23:58:55,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-22 23:59:03,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:59:04,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 3895 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-22 23:59:04,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:59:06,247 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 178 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2022-07-22 23:59:06,247 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:59:06,247 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:59:06,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1904873488] [2022-07-22 23:59:06,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1904873488] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:59:06,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:59:06,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 23:59:06,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759002863] [2022-07-22 23:59:06,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:59:06,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 23:59:06,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:59:06,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 23:59:06,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-22 23:59:06,250 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) [2022-07-22 23:59:13,893 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 [] [2022-07-22 23:59:15,897 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:59:27,774 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:59:31,360 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:59:32,827 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:59:35,728 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:59:37,755 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:00:09,107 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:00:15,842 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:00:18,138 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:00:21,860 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:00:24,618 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:00:41,738 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []