./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 eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-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-?-eb692b5 [2022-07-19 23:42:38,741 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 23:42:38,743 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 23:42:38,767 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 23:42:38,768 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 23:42:38,768 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 23:42:38,770 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 23:42:38,771 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 23:42:38,773 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 23:42:38,774 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 23:42:38,775 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 23:42:38,776 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 23:42:38,776 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 23:42:38,777 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 23:42:38,778 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 23:42:38,779 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 23:42:38,780 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 23:42:38,781 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 23:42:38,782 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 23:42:38,784 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 23:42:38,785 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 23:42:38,786 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 23:42:38,787 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 23:42:38,788 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 23:42:38,788 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 23:42:38,791 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 23:42:38,791 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 23:42:38,791 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 23:42:38,792 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 23:42:38,793 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 23:42:38,794 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 23:42:38,794 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 23:42:38,795 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 23:42:38,796 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 23:42:38,796 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 23:42:38,797 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 23:42:38,798 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 23:42:38,798 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 23:42:38,799 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 23:42:38,799 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 23:42:38,800 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 23:42:38,805 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 23:42:38,807 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-19 23:42:38,833 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 23:42:38,834 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 23:42:38,834 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 23:42:38,834 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 23:42:38,835 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 23:42:38,835 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 23:42:38,835 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 23:42:38,836 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 23:42:38,836 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 23:42:38,837 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 23:42:38,837 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 23:42:38,837 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 23:42:38,837 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 23:42:38,837 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 23:42:38,837 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 23:42:38,838 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 23:42:38,838 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 23:42:38,838 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 23:42:38,838 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 23:42:38,839 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 23:42:38,839 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 23:42:38,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 23:42:38,840 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 23:42:38,840 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 23:42:38,840 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 23:42:38,840 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 23:42:38,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 23:42:38,841 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 23:42:38,841 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 23:42:38,841 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 23:42:38,841 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f81d244572c9a77eee348ee40397ea85f2dfad22a6619aa4d31ee137ff878aa4 [2022-07-19 23:42:39,109 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 23:42:39,130 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 23:42:39,133 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 23:42:39,134 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 23:42:39,135 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 23:42:39,136 INFO L432 ainManager$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 [2022-07-19 23:42:39,205 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a04aba10/8bc78b0a30dd42d588590b57c41e6b29/FLAGacf08e491 [2022-07-19 23:42:40,039 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 23:42:40,040 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 [2022-07-19 23:42:40,098 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a04aba10/8bc78b0a30dd42d588590b57c41e6b29/FLAGacf08e491 [2022-07-19 23:42:40,224 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a04aba10/8bc78b0a30dd42d588590b57c41e6b29 [2022-07-19 23:42:40,228 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 23:42:40,230 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 23:42:40,232 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 23:42:40,233 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 23:42:40,236 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 23:42:40,237 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:42:40" (1/1) ... [2022-07-19 23:42:40,238 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f5f297b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:42:40, skipping insertion in model container [2022-07-19 23:42:40,239 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:42:40" (1/1) ... [2022-07-19 23:42:40,246 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 23:42:40,393 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 23:42:41,763 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] [2022-07-19 23:42:43,183 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 23:42:43,256 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 23:42:43,435 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] [2022-07-19 23:42:43,531 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) [2022-07-19 23:42:43,542 INFO L158 Benchmark]: Toolchain (without parser) took 3310.16ms. Allocated memory was 115.3MB in the beginning and 169.9MB in the end (delta: 54.5MB). Free memory was 66.2MB in the beginning and 75.9MB in the end (delta: -9.8MB). Peak memory consumption was 59.0MB. Max. memory is 16.1GB. [2022-07-19 23:42:43,542 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 81.8MB. Free memory was 54.1MB in the beginning and 54.1MB in the end (delta: 28.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 23:42:43,543 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3307.17ms. Allocated memory was 115.3MB in the beginning and 169.9MB in the end (delta: 54.5MB). Free memory was 65.9MB in the beginning and 75.9MB in the end (delta: -10.0MB). Peak memory consumption was 59.0MB. Max. memory is 16.1GB. [2022-07-19 23:42:43,545 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 81.8MB. Free memory was 54.1MB in the beginning and 54.1MB in the end (delta: 28.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3307.17ms. Allocated memory was 115.3MB in the beginning and 169.9MB in the end (delta: 54.5MB). Free memory was 65.9MB in the beginning and 75.9MB in the end (delta: -10.0MB). Peak memory consumption was 59.0MB. 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-?-eb692b5 [2022-07-19 23:42:45,359 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 23:42:45,361 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 23:42:45,399 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 23:42:45,400 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 23:42:45,401 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 23:42:45,405 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 23:42:45,408 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 23:42:45,411 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 23:42:45,426 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 23:42:45,428 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 23:42:45,433 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 23:42:45,433 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 23:42:45,435 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 23:42:45,437 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 23:42:45,438 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 23:42:45,442 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 23:42:45,443 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 23:42:45,445 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 23:42:45,447 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 23:42:45,451 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 23:42:45,452 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 23:42:45,453 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 23:42:45,454 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 23:42:45,456 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 23:42:45,458 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 23:42:45,458 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 23:42:45,458 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 23:42:45,459 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 23:42:45,460 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 23:42:45,460 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 23:42:45,460 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 23:42:45,461 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 23:42:45,462 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 23:42:45,464 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 23:42:45,464 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 23:42:45,465 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 23:42:45,465 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 23:42:45,465 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 23:42:45,466 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 23:42:45,466 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 23:42:45,468 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 23:42:45,468 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-19 23:42:45,506 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 23:42:45,506 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 23:42:45,507 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 23:42:45,507 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 23:42:45,508 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 23:42:45,508 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 23:42:45,509 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 23:42:45,509 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 23:42:45,509 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 23:42:45,510 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 23:42:45,510 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 23:42:45,511 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 23:42:45,511 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 23:42:45,511 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 23:42:45,511 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-19 23:42:45,511 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-19 23:42:45,512 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-19 23:42:45,512 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 23:42:45,512 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 23:42:45,512 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 23:42:45,512 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 23:42:45,513 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 23:42:45,513 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 23:42:45,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 23:42:45,513 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 23:42:45,514 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 23:42:45,514 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 23:42:45,514 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-19 23:42:45,514 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-19 23:42:45,514 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 23:42:45,515 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 23:42:45,515 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 23:42:45,515 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-19 23:42:45,515 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f81d244572c9a77eee348ee40397ea85f2dfad22a6619aa4d31ee137ff878aa4 [2022-07-19 23:42:45,835 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 23:42:45,864 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 23:42:45,867 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 23:42:45,868 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 23:42:45,869 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 23:42:45,870 INFO L432 ainManager$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 [2022-07-19 23:42:45,938 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ff9c9c16/1694a2b73e3c4e20844cb0d57d76e17a/FLAGd94b6ade8 [2022-07-19 23:42:46,784 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 23:42:46,784 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 [2022-07-19 23:42:46,836 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ff9c9c16/1694a2b73e3c4e20844cb0d57d76e17a/FLAGd94b6ade8 [2022-07-19 23:42:47,313 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ff9c9c16/1694a2b73e3c4e20844cb0d57d76e17a [2022-07-19 23:42:47,316 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 23:42:47,317 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 23:42:47,318 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 23:42:47,319 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 23:42:47,337 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 23:42:47,338 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:42:47" (1/1) ... [2022-07-19 23:42:47,339 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a7d5587 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:42:47, skipping insertion in model container [2022-07-19 23:42:47,339 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:42:47" (1/1) ... [2022-07-19 23:42:47,346 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 23:42:47,496 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 23:42:48,667 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8187--rtl8187.ko-entry_point.cil.out.i[205376,205389] [2022-07-19 23:42:50,104 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 23:42:50,178 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-19 23:42:50,236 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 23:42:50,341 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] [2022-07-19 23:42:50,571 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 23:42:50,641 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 23:42:50,776 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] [2022-07-19 23:42:50,949 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 23:42:51,065 INFO L208 MainTranslator]: Completed translation [2022-07-19 23:42:51,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:42:51 WrapperNode [2022-07-19 23:42:51,066 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 23:42:51,068 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 23:42:51,068 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 23:42:51,068 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 23:42:51,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:42:51" (1/1) ... [2022-07-19 23:42:51,194 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:42:51" (1/1) ... [2022-07-19 23:42:51,402 INFO L137 Inliner]: procedures = 322, calls = 3868, calls flagged for inlining = 135, calls inlined = 131, statements flattened = 6144 [2022-07-19 23:42:51,403 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 23:42:51,404 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 23:42:51,404 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 23:42:51,404 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 23:42:51,418 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:42:51" (1/1) ... [2022-07-19 23:42:51,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:42:51" (1/1) ... [2022-07-19 23:42:51,451 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:42:51" (1/1) ... [2022-07-19 23:42:51,452 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:42:51" (1/1) ... [2022-07-19 23:42:51,577 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:42:51" (1/1) ... [2022-07-19 23:42:51,606 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:42:51" (1/1) ... [2022-07-19 23:42:51,638 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:42:51" (1/1) ... [2022-07-19 23:42:51,675 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 23:42:51,677 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 23:42:51,677 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 23:42:51,678 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 23:42:51,678 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:42:51" (1/1) ... [2022-07-19 23:42:51,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 23:42:51,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 23:42:51,704 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) [2022-07-19 23:42:51,717 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 [2022-07-19 23:42:51,743 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread8 [2022-07-19 23:42:51,744 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread8 [2022-07-19 23:42:51,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-19 23:42:51,744 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_register_led [2022-07-19 23:42:51,745 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_register_led [2022-07-19 23:42:51,745 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-19 23:42:51,745 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-19 23:42:51,745 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-07-19 23:42:51,745 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-07-19 23:42:51,745 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_add_interface [2022-07-19 23:42:51,746 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_add_interface [2022-07-19 23:42:51,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-19 23:42:51,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-19 23:42:51,746 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite8 [2022-07-19 23:42:51,746 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite8 [2022-07-19 23:42:51,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-19 23:42:51,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-19 23:42:51,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-19 23:42:51,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-19 23:42:51,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-19 23:42:51,747 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-07-19 23:42:51,747 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-07-19 23:42:51,748 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-07-19 23:42:51,748 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-07-19 23:42:51,748 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2022-07-19 23:42:51,748 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2022-07-19 23:42:51,748 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-07-19 23:42:51,748 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-07-19 23:42:51,749 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2022-07-19 23:42:51,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2022-07-19 23:42:51,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_1 [2022-07-19 23:42:51,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_1 [2022-07-19 23:42:51,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_3 [2022-07-19 23:42:51,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_3 [2022-07-19 23:42:51,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-19 23:42:51,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-19 23:42:51,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_2 [2022-07-19 23:42:51,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_2 [2022-07-19 23:42:51,751 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_init [2022-07-19 23:42:51,751 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_init [2022-07-19 23:42:51,751 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_init [2022-07-19 23:42:51,751 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_init [2022-07-19 23:42:51,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-07-19 23:42:51,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-07-19 23:42:51,752 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_tx_status_irqsafe [2022-07-19 23:42:51,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_tx_status_irqsafe [2022-07-19 23:42:51,752 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_b_rf_init [2022-07-19 23:42:51,752 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_b_rf_init [2022-07-19 23:42:51,753 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-19 23:42:51,753 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-19 23:42:51,754 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-07-19 23:42:51,754 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-07-19 23:42:51,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-19 23:42:51,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-19 23:42:51,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-19 23:42:51,755 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-19 23:42:51,755 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-19 23:42:51,755 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-19 23:42:51,755 INFO L130 BoogieDeclarations]: Found specification of procedure fls [2022-07-19 23:42:51,815 INFO L138 BoogieDeclarations]: Found implementation of procedure fls [2022-07-19 23:42:51,815 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_remove_interface [2022-07-19 23:42:51,815 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_remove_interface [2022-07-19 23:42:51,815 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-19 23:42:51,815 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-19 23:42:51,815 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write [2022-07-19 23:42:51,815 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write [2022-07-19 23:42:51,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 23:42:51,815 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_stop [2022-07-19 23:42:51,816 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_stop [2022-07-19 23:42:51,816 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_set_anaparam [2022-07-19 23:42:51,816 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_set_anaparam [2022-07-19 23:42:51,816 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-19 23:42:51,816 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-19 23:42:51,816 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_configure_filter [2022-07-19 23:42:51,816 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_configure_filter [2022-07-19 23:42:51,816 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread32 [2022-07-19 23:42:51,816 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread32 [2022-07-19 23:42:51,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-19 23:42:51,816 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_rfkill_poll [2022-07-19 23:42:51,816 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_rfkill_poll [2022-07-19 23:42:51,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-07-19 23:42:51,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-07-19 23:42:51,817 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-07-19 23:42:51,817 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-19 23:42:51,817 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-19 23:42:51,817 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_rfkill_set_hw_state [2022-07-19 23:42:51,817 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_rfkill_set_hw_state [2022-07-19 23:42:51,817 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2022-07-19 23:42:51,817 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2022-07-19 23:42:51,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-19 23:42:51,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-19 23:42:51,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-19 23:42:51,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 23:42:51,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-19 23:42:51,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-19 23:42:51,818 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_set_tx_power [2022-07-19 23:42:51,818 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_set_tx_power [2022-07-19 23:42:51,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-19 23:42:51,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-19 23:42:51,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-19 23:42:51,818 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_config [2022-07-19 23:42:51,818 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_config [2022-07-19 23:42:51,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-19 23:42:51,818 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread16 [2022-07-19 23:42:51,818 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread16 [2022-07-19 23:42:51,818 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-07-19 23:42:51,818 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-07-19 23:42:51,818 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-19 23:42:51,819 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-19 23:42:51,819 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-19 23:42:51,819 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-19 23:42:51,819 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_queue_delayed_work [2022-07-19 23:42:51,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_queue_delayed_work [2022-07-19 23:42:51,819 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite8_idx [2022-07-19 23:42:51,819 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite8_idx [2022-07-19 23:42:51,819 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-19 23:42:51,819 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-19 23:42:51,819 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_is_radio_enabled [2022-07-19 23:42:51,819 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_is_radio_enabled [2022-07-19 23:42:51,819 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_disconnect [2022-07-19 23:42:51,819 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_disconnect [2022-07-19 23:42:51,820 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2022-07-19 23:42:51,820 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2022-07-19 23:42:51,820 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-07-19 23:42:51,820 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-07-19 23:42:51,820 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-19 23:42:51,820 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-19 23:42:51,820 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-07-19 23:42:51,820 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-07-19 23:42:51,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-19 23:42:51,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-19 23:42:51,820 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_tx_rate [2022-07-19 23:42:51,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_tx_rate [2022-07-19 23:42:51,820 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-07-19 23:42:51,821 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-07-19 23:42:51,821 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-19 23:42:51,821 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-19 23:42:51,821 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_stop [2022-07-19 23:42:51,821 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_stop [2022-07-19 23:42:51,821 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_write_phy [2022-07-19 23:42:51,821 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_write_phy [2022-07-19 23:42:51,821 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_tx [2022-07-19 23:42:51,821 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_tx [2022-07-19 23:42:51,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-19 23:42:51,821 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-19 23:42:51,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2022-07-19 23:42:51,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2022-07-19 23:42:51,822 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_read [2022-07-19 23:42:51,822 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_read [2022-07-19 23:42:51,822 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-07-19 23:42:51,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-07-19 23:42:51,822 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_conf_tx [2022-07-19 23:42:51,822 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_conf_tx [2022-07-19 23:42:51,822 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2022-07-19 23:42:51,822 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2022-07-19 23:42:51,822 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-19 23:42:51,822 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-19 23:42:51,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-19 23:42:51,822 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_channel [2022-07-19 23:42:51,822 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_channel [2022-07-19 23:42:51,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-19 23:42:51,822 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_read [2022-07-19 23:42:51,823 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_read [2022-07-19 23:42:51,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-19 23:42:51,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-19 23:42:51,823 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_tx_power [2022-07-19 23:42:51,826 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_tx_power [2022-07-19 23:42:51,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-19 23:42:51,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-19 23:42:51,827 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_unregister_led [2022-07-19 23:42:51,827 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_unregister_led [2022-07-19 23:42:51,827 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2022-07-19 23:42:51,827 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_init_urbs [2022-07-19 23:42:51,827 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_init_urbs [2022-07-19 23:42:51,827 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_name [2022-07-19 23:42:51,827 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_name [2022-07-19 23:42:51,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-19 23:42:51,828 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_bss_info_changed [2022-07-19 23:42:51,828 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_bss_info_changed [2022-07-19 23:42:51,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 23:42:51,828 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-07-19 23:42:51,828 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-07-19 23:42:51,828 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2022-07-19 23:42:51,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2022-07-19 23:42:51,829 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_cck [2022-07-19 23:42:51,829 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_cck [2022-07-19 23:42:51,829 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-19 23:42:51,829 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-19 23:42:51,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-19 23:42:51,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-19 23:42:51,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-19 23:42:51,830 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_RXCB [2022-07-19 23:42:51,830 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_RXCB [2022-07-19 23:42:51,830 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-19 23:42:51,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-19 23:42:51,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-19 23:42:51,830 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-07-19 23:42:51,830 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-07-19 23:42:51,831 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_rts_cts_rate [2022-07-19 23:42:51,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_rts_cts_rate [2022-07-19 23:42:51,831 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-07-19 23:42:51,831 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-07-19 23:42:51,831 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-07-19 23:42:51,831 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-07-19 23:42:51,831 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_get_tsf [2022-07-19 23:42:51,832 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_get_tsf [2022-07-19 23:42:51,832 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-07-19 23:42:51,832 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-07-19 23:42:51,832 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-07-19 23:42:51,832 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-07-19 23:42:51,832 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-19 23:42:51,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-19 23:42:51,833 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite32_idx [2022-07-19 23:42:51,833 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite32_idx [2022-07-19 23:42:51,833 INFO L130 BoogieDeclarations]: Found specification of procedure skb_unlink [2022-07-19 23:42:51,834 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_unlink [2022-07-19 23:42:51,834 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite32 [2022-07-19 23:42:51,834 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite32 [2022-07-19 23:42:51,835 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite16_idx [2022-07-19 23:42:51,835 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite16_idx [2022-07-19 23:42:51,835 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_cmd_reset [2022-07-19 23:42:51,835 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_cmd_reset [2022-07-19 23:42:51,836 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_ofdm [2022-07-19 23:42:51,836 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_ofdm [2022-07-19 23:42:51,836 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_prepare_multicast [2022-07-19 23:42:51,836 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_prepare_multicast [2022-07-19 23:42:51,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-19 23:42:51,836 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-07-19 23:42:51,836 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-07-19 23:42:51,837 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite16 [2022-07-19 23:42:51,837 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite16 [2022-07-19 23:42:51,837 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-07-19 23:42:51,837 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-07-19 23:42:51,837 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-07-19 23:42:51,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 23:42:51,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 23:42:51,838 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2022-07-19 23:42:51,838 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2022-07-19 23:42:52,618 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 23:42:52,621 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 23:42:55,394 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-19 23:43:35,598 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 23:43:35,632 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 23:43:35,632 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-07-19 23:43:35,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:43:35 BoogieIcfgContainer [2022-07-19 23:43:35,641 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 23:43:35,643 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 23:43:35,643 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 23:43:35,646 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 23:43:35,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 11:42:47" (1/3) ... [2022-07-19 23:43:35,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30764b8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:43:35, skipping insertion in model container [2022-07-19 23:43:35,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:42:51" (2/3) ... [2022-07-19 23:43:35,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30764b8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:43:35, skipping insertion in model container [2022-07-19 23:43:35,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:43:35" (3/3) ... [2022-07-19 23:43:35,660 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 [2022-07-19 23:43:35,687 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 23:43:35,687 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 23:43:35,812 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 23:43:35,821 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@492bae0, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6f0bbb7d [2022-07-19 23:43:35,821 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 23:43:35,838 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) [2022-07-19 23:43:35,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-19 23:43:35,868 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:43:35,870 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] [2022-07-19 23:43:35,870 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:43:35,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:43:35,878 INFO L85 PathProgramCache]: Analyzing trace with hash -2068464976, now seen corresponding path program 1 times [2022-07-19 23:43:35,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:43:35,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1548552038] [2022-07-19 23:43:35,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:43:35,903 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:43:35,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:43:35,909 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) [2022-07-19 23:43:35,914 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-19 23:43:42,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:43:42,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 3465 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 23:43:42,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:43:42,751 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-07-19 23:43:42,751 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:43:42,752 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:43:42,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1548552038] [2022-07-19 23:43:42,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1548552038] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:43:42,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:43:42,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 23:43:42,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876676338] [2022-07-19 23:43:42,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:43:42,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 23:43:42,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:43:42,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 23:43:42,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 23:43:42,790 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) [2022-07-19 23:43:43,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:43:43,318 INFO L93 Difference]: Finished difference Result 4922 states and 7423 transitions. [2022-07-19 23:43:43,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 23:43:43,321 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 [2022-07-19 23:43:43,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:43:43,379 INFO L225 Difference]: With dead ends: 4922 [2022-07-19 23:43:43,379 INFO L226 Difference]: Without dead ends: 2449 [2022-07-19 23:43:43,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:43:43,424 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 [2022-07-19 23:43:43,426 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] [2022-07-19 23:43:43,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2449 states. [2022-07-19 23:43:43,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2449 to 2449. [2022-07-19 23:43:43,797 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) [2022-07-19 23:43:43,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2449 states to 2449 states and 3653 transitions. [2022-07-19 23:43:43,840 INFO L78 Accepts]: Start accepts. Automaton has 2449 states and 3653 transitions. Word has length 67 [2022-07-19 23:43:43,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:43:43,842 INFO L495 AbstractCegarLoop]: Abstraction has 2449 states and 3653 transitions. [2022-07-19 23:43:43,843 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) [2022-07-19 23:43:43,843 INFO L276 IsEmpty]: Start isEmpty. Operand 2449 states and 3653 transitions. [2022-07-19 23:43:43,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-19 23:43:43,850 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:43:43,850 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] [2022-07-19 23:43:44,050 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-19 23:43:44,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:43:44,069 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:43:44,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:43:44,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1269923975, now seen corresponding path program 1 times [2022-07-19 23:43:44,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:43:44,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1929975605] [2022-07-19 23:43:44,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:43:44,074 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:43:44,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:43:44,077 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) [2022-07-19 23:43:44,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-19 23:43:51,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:43:51,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 3476 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-19 23:43:51,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:43:51,887 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-07-19 23:43:51,887 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 23:43:52,427 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-07-19 23:43:52,428 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:43:52,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1929975605] [2022-07-19 23:43:52,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1929975605] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 23:43:52,428 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-19 23:43:52,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-07-19 23:43:52,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589697405] [2022-07-19 23:43:52,429 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-19 23:43:52,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 23:43:52,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:43:52,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 23:43:52,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-19 23:43:52,431 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) [2022-07-19 23:43:53,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:43:53,484 INFO L93 Difference]: Finished difference Result 4890 states and 7306 transitions. [2022-07-19 23:43:53,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-19 23:43:53,485 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 [2022-07-19 23:43:53,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:43:53,511 INFO L225 Difference]: With dead ends: 4890 [2022-07-19 23:43:53,511 INFO L226 Difference]: Without dead ends: 2458 [2022-07-19 23:43:53,538 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 [2022-07-19 23:43:53,539 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 [2022-07-19 23:43:53,539 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] [2022-07-19 23:43:53,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2458 states. [2022-07-19 23:43:53,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2458 to 2458. [2022-07-19 23:43:53,744 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) [2022-07-19 23:43:53,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2458 states to 2458 states and 3664 transitions. [2022-07-19 23:43:53,771 INFO L78 Accepts]: Start accepts. Automaton has 2458 states and 3664 transitions. Word has length 68 [2022-07-19 23:43:53,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:43:53,772 INFO L495 AbstractCegarLoop]: Abstraction has 2458 states and 3664 transitions. [2022-07-19 23:43:53,772 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) [2022-07-19 23:43:53,772 INFO L276 IsEmpty]: Start isEmpty. Operand 2458 states and 3664 transitions. [2022-07-19 23:43:53,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-07-19 23:43:53,773 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:43:53,774 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] [2022-07-19 23:43:53,922 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-07-19 23:43:53,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:43:53,992 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:43:53,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:43:53,992 INFO L85 PathProgramCache]: Analyzing trace with hash 119874800, now seen corresponding path program 2 times [2022-07-19 23:43:53,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:43:53,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [223422342] [2022-07-19 23:43:53,997 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-19 23:43:53,997 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:43:53,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:43:53,999 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) [2022-07-19 23:43:54,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-19 23:44:00,144 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-19 23:44:00,144 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 23:44:00,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 3346 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-19 23:44:00,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:44:01,004 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-07-19 23:44:01,004 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:44:01,004 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:44:01,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [223422342] [2022-07-19 23:44:01,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [223422342] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:44:01,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:44:01,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 23:44:01,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224913704] [2022-07-19 23:44:01,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:44:01,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 23:44:01,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:44:01,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 23:44:01,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:44:01,006 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) [2022-07-19 23:44:02,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:44:02,046 INFO L93 Difference]: Finished difference Result 7315 states and 10941 transitions. [2022-07-19 23:44:02,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 23:44:02,047 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 [2022-07-19 23:44:02,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:44:02,099 INFO L225 Difference]: With dead ends: 7315 [2022-07-19 23:44:02,099 INFO L226 Difference]: Without dead ends: 4879 [2022-07-19 23:44:02,126 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 [2022-07-19 23:44:02,129 INFO L413 NwaCegarLoop]: 5036 mSDtfsCounter, 3626 mSDsluCounter, 13703 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3626 SdHoareTripleChecker+Valid, 18739 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 [2022-07-19 23:44:02,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3626 Valid, 18739 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-19 23:44:02,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4879 states. [2022-07-19 23:44:02,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4879 to 4875. [2022-07-19 23:44:02,413 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) [2022-07-19 23:44:02,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4875 states to 4875 states and 7292 transitions. [2022-07-19 23:44:02,459 INFO L78 Accepts]: Start accepts. Automaton has 4875 states and 7292 transitions. Word has length 71 [2022-07-19 23:44:02,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:44:02,460 INFO L495 AbstractCegarLoop]: Abstraction has 4875 states and 7292 transitions. [2022-07-19 23:44:02,460 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) [2022-07-19 23:44:02,460 INFO L276 IsEmpty]: Start isEmpty. Operand 4875 states and 7292 transitions. [2022-07-19 23:44:02,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-07-19 23:44:02,471 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:44:02,471 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] [2022-07-19 23:44:02,618 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-19 23:44:02,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:44:02,692 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:44:02,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:44:02,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1366899849, now seen corresponding path program 1 times [2022-07-19 23:44:02,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:44:02,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [929877181] [2022-07-19 23:44:02,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:44:02,695 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:44:02,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:44:02,696 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) [2022-07-19 23:44:02,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-19 23:44:09,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:44:09,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 3679 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-19 23:44:09,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:44:10,103 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-07-19 23:44:10,103 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 23:44:11,506 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-07-19 23:44:11,506 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:44:11,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [929877181] [2022-07-19 23:44:11,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [929877181] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 23:44:11,507 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-19 23:44:11,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-07-19 23:44:11,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185017255] [2022-07-19 23:44:11,507 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-19 23:44:11,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-19 23:44:11,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:44:11,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-19 23:44:11,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-07-19 23:44:11,509 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) [2022-07-19 23:44:14,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:44:14,339 INFO L93 Difference]: Finished difference Result 9749 states and 14619 transitions. [2022-07-19 23:44:14,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-19 23:44:14,353 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 [2022-07-19 23:44:14,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:44:14,410 INFO L225 Difference]: With dead ends: 9749 [2022-07-19 23:44:14,410 INFO L226 Difference]: Without dead ends: 4885 [2022-07-19 23:44:14,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=178, Invalid=374, Unknown=0, NotChecked=0, Total=552 [2022-07-19 23:44:14,462 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 [2022-07-19 23:44:14,463 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] [2022-07-19 23:44:14,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4885 states. [2022-07-19 23:44:14,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4885 to 4885. [2022-07-19 23:44:14,718 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) [2022-07-19 23:44:14,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4885 states to 4885 states and 7300 transitions. [2022-07-19 23:44:14,776 INFO L78 Accepts]: Start accepts. Automaton has 4885 states and 7300 transitions. Word has length 129 [2022-07-19 23:44:14,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:44:14,778 INFO L495 AbstractCegarLoop]: Abstraction has 4885 states and 7300 transitions. [2022-07-19 23:44:14,778 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) [2022-07-19 23:44:14,778 INFO L276 IsEmpty]: Start isEmpty. Operand 4885 states and 7300 transitions. [2022-07-19 23:44:14,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-07-19 23:44:14,789 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:44:14,790 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] [2022-07-19 23:44:14,969 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-19 23:44:14,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:44:14,990 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:44:14,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:44:14,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1499053495, now seen corresponding path program 2 times [2022-07-19 23:44:14,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:44:14,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1701571088] [2022-07-19 23:44:14,995 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-19 23:44:14,995 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:44:14,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:44:14,997 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) [2022-07-19 23:44:15,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-19 23:44:21,511 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-19 23:44:21,511 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 23:44:21,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 3346 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 23:44:21,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:44:22,894 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-07-19 23:44:22,894 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:44:22,894 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:44:22,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1701571088] [2022-07-19 23:44:22,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1701571088] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:44:22,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:44:22,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 23:44:22,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595304095] [2022-07-19 23:44:22,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:44:22,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 23:44:22,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:44:22,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 23:44:22,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:44:22,896 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) [2022-07-19 23:44:23,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:44:23,564 INFO L93 Difference]: Finished difference Result 14540 states and 21756 transitions. [2022-07-19 23:44:23,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 23:44:23,565 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 [2022-07-19 23:44:23,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:44:23,671 INFO L225 Difference]: With dead ends: 14540 [2022-07-19 23:44:23,672 INFO L226 Difference]: Without dead ends: 9687 [2022-07-19 23:44:23,725 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 [2022-07-19 23:44:23,726 INFO L413 NwaCegarLoop]: 4583 mSDtfsCounter, 3531 mSDsluCounter, 3633 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3531 SdHoareTripleChecker+Valid, 8216 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 23:44:23,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3531 Valid, 8216 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 23:44:23,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9687 states. [2022-07-19 23:44:24,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9687 to 9687. [2022-07-19 23:44:24,334 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) [2022-07-19 23:44:24,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9687 states to 9687 states and 14491 transitions. [2022-07-19 23:44:24,497 INFO L78 Accepts]: Start accepts. Automaton has 9687 states and 14491 transitions. Word has length 133 [2022-07-19 23:44:24,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:44:24,497 INFO L495 AbstractCegarLoop]: Abstraction has 9687 states and 14491 transitions. [2022-07-19 23:44:24,498 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) [2022-07-19 23:44:24,498 INFO L276 IsEmpty]: Start isEmpty. Operand 9687 states and 14491 transitions. [2022-07-19 23:44:24,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-07-19 23:44:24,508 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:44:24,509 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] [2022-07-19 23:44:24,680 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-19 23:44:24,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:44:24,728 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:44:24,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:44:24,728 INFO L85 PathProgramCache]: Analyzing trace with hash -884016191, now seen corresponding path program 1 times [2022-07-19 23:44:24,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:44:24,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [642729250] [2022-07-19 23:44:24,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:44:24,731 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:44:24,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:44:24,733 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) [2022-07-19 23:44:24,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-19 23:44:31,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:44:31,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 3767 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 23:44:31,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:44:32,090 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2022-07-19 23:44:32,090 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:44:32,090 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:44:32,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [642729250] [2022-07-19 23:44:32,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [642729250] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:44:32,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:44:32,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 23:44:32,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080131284] [2022-07-19 23:44:32,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:44:32,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 23:44:32,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:44:32,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 23:44:32,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:44:32,092 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) [2022-07-19 23:44:33,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:44:33,432 INFO L93 Difference]: Finished difference Result 24543 states and 36808 transitions. [2022-07-19 23:44:33,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 23:44:33,433 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 [2022-07-19 23:44:33,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:44:33,584 INFO L225 Difference]: With dead ends: 24543 [2022-07-19 23:44:33,584 INFO L226 Difference]: Without dead ends: 14888 [2022-07-19 23:44:33,669 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 [2022-07-19 23:44:33,670 INFO L413 NwaCegarLoop]: 4249 mSDtfsCounter, 2001 mSDsluCounter, 3555 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2001 SdHoareTripleChecker+Valid, 7804 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-19 23:44:33,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2001 Valid, 7804 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-19 23:44:33,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14888 states. [2022-07-19 23:44:34,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14888 to 14879. [2022-07-19 23:44:34,665 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) [2022-07-19 23:44:34,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14879 states to 14879 states and 22345 transitions. [2022-07-19 23:44:34,921 INFO L78 Accepts]: Start accepts. Automaton has 14879 states and 22345 transitions. Word has length 143 [2022-07-19 23:44:34,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:44:34,922 INFO L495 AbstractCegarLoop]: Abstraction has 14879 states and 22345 transitions. [2022-07-19 23:44:34,923 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) [2022-07-19 23:44:34,923 INFO L276 IsEmpty]: Start isEmpty. Operand 14879 states and 22345 transitions. [2022-07-19 23:44:34,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-19 23:44:34,974 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:44:34,974 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] [2022-07-19 23:44:35,175 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forcibly destroying the process [2022-07-19 23:44:35,291 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 137 [2022-07-19 23:44:35,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:44:35,292 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:44:35,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:44:35,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1103862230, now seen corresponding path program 1 times [2022-07-19 23:44:35,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:44:35,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [115204957] [2022-07-19 23:44:35,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:44:35,297 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:44:35,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:44:35,320 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) [2022-07-19 23:44:35,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-19 23:44:42,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:44:42,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 3891 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 23:44:42,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:44:43,766 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2022-07-19 23:44:43,766 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:44:43,766 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:44:43,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [115204957] [2022-07-19 23:44:43,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [115204957] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:44:43,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:44:43,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 23:44:43,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118318169] [2022-07-19 23:44:43,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:44:43,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 23:44:43,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:44:43,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 23:44:43,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:44:43,768 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) [2022-07-19 23:44:45,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:44:45,511 INFO L93 Difference]: Finished difference Result 37859 states and 56720 transitions. [2022-07-19 23:44:45,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 23:44:45,512 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 [2022-07-19 23:44:45,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:44:45,855 INFO L225 Difference]: With dead ends: 37859 [2022-07-19 23:44:45,855 INFO L226 Difference]: Without dead ends: 23012 [2022-07-19 23:44:45,988 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 [2022-07-19 23:44:45,989 INFO L413 NwaCegarLoop]: 6130 mSDtfsCounter, 3514 mSDsluCounter, 3025 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3514 SdHoareTripleChecker+Valid, 9155 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-19 23:44:45,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3514 Valid, 9155 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-19 23:44:46,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23012 states. [2022-07-19 23:44:47,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23012 to 23003. [2022-07-19 23:44:48,019 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) [2022-07-19 23:44:48,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23003 states to 23003 states and 34315 transitions. [2022-07-19 23:44:48,259 INFO L78 Accepts]: Start accepts. Automaton has 23003 states and 34315 transitions. Word has length 187 [2022-07-19 23:44:48,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:44:48,260 INFO L495 AbstractCegarLoop]: Abstraction has 23003 states and 34315 transitions. [2022-07-19 23:44:48,260 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) [2022-07-19 23:44:48,260 INFO L276 IsEmpty]: Start isEmpty. Operand 23003 states and 34315 transitions. [2022-07-19 23:44:48,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-19 23:44:48,271 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:44:48,272 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] [2022-07-19 23:44:48,446 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-19 23:44:48,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:44:48,487 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:44:48,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:44:48,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1119806596, now seen corresponding path program 1 times [2022-07-19 23:44:48,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:44:48,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [116336930] [2022-07-19 23:44:48,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:44:48,492 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:44:48,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:44:48,494 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) [2022-07-19 23:44:48,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-19 23:44:56,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:44:56,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 3891 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 23:44:56,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:44:56,988 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2022-07-19 23:44:56,988 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:44:56,988 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:44:56,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [116336930] [2022-07-19 23:44:56,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [116336930] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:44:56,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:44:56,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 23:44:56,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328370924] [2022-07-19 23:44:56,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:44:56,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 23:44:56,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:44:56,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 23:44:56,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:44:56,990 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) [2022-07-19 23:44:57,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:44:57,657 INFO L93 Difference]: Finished difference Result 34517 states and 51548 transitions. [2022-07-19 23:44:57,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 23:44:57,657 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 [2022-07-19 23:44:57,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:44:57,839 INFO L225 Difference]: With dead ends: 34517 [2022-07-19 23:44:57,839 INFO L226 Difference]: Without dead ends: 23019 [2022-07-19 23:44:57,936 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 [2022-07-19 23:44:57,938 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 [2022-07-19 23:44:57,938 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] [2022-07-19 23:44:57,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23019 states. [2022-07-19 23:44:59,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23019 to 23019. [2022-07-19 23:44:59,325 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) [2022-07-19 23:44:59,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23019 states to 23019 states and 34331 transitions. [2022-07-19 23:44:59,609 INFO L78 Accepts]: Start accepts. Automaton has 23019 states and 34331 transitions. Word has length 187 [2022-07-19 23:44:59,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:44:59,610 INFO L495 AbstractCegarLoop]: Abstraction has 23019 states and 34331 transitions. [2022-07-19 23:44:59,610 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) [2022-07-19 23:44:59,610 INFO L276 IsEmpty]: Start isEmpty. Operand 23019 states and 34331 transitions. [2022-07-19 23:44:59,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-19 23:44:59,625 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:44:59,626 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] [2022-07-19 23:44:59,773 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-07-19 23:44:59,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:44:59,848 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:44:59,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:44:59,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1130499163, now seen corresponding path program 1 times [2022-07-19 23:44:59,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:44:59,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [648562517] [2022-07-19 23:44:59,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:44:59,851 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:44:59,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:44:59,852 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) [2022-07-19 23:44:59,853 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-19 23:45:07,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:45:08,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 3895 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-19 23:45:08,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:45:10,228 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 178 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2022-07-19 23:45:10,228 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:45:10,228 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:45:10,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [648562517] [2022-07-19 23:45:10,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [648562517] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:45:10,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:45:10,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 23:45:10,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716457501] [2022-07-19 23:45:10,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:45:10,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 23:45:10,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:45:10,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 23:45:10,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-19 23:45:10,230 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) [2022-07-19 23:45:18,234 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 [] [2022-07-19 23:45:20,241 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:45:28,515 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:45:35,339 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:45:37,366 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:45:40,679 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:45:42,406 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:45:45,471 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:45:46,913 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:46:18,371 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:46:24,753 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:46:27,018 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:46:30,535 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:46:33,168 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 []