./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.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 fe313da0c6b218ced50e4197dc755b81036d59e37c56d6141b10ae8e848ca9fd --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 00:25:06,743 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 00:25:06,745 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 00:25:06,773 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 00:25:06,774 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 00:25:06,775 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 00:25:06,779 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 00:25:06,782 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 00:25:06,783 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 00:25:06,789 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 00:25:06,790 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 00:25:06,792 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 00:25:06,792 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 00:25:06,794 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 00:25:06,795 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 00:25:06,796 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 00:25:06,797 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 00:25:06,799 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 00:25:06,802 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 00:25:06,808 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 00:25:06,810 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 00:25:06,811 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 00:25:06,812 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 00:25:06,812 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 00:25:06,814 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 00:25:06,816 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 00:25:06,817 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 00:25:06,817 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 00:25:06,818 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 00:25:06,819 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 00:25:06,819 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 00:25:06,820 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 00:25:06,821 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 00:25:06,821 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 00:25:06,822 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 00:25:06,823 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 00:25:06,823 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 00:25:06,823 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 00:25:06,823 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 00:25:06,823 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 00:25:06,824 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 00:25:06,826 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 00:25:06,827 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 00:25:06,861 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 00:25:06,863 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 00:25:06,863 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 00:25:06,863 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 00:25:06,864 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 00:25:06,864 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 00:25:06,864 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 00:25:06,864 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 00:25:06,865 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 00:25:06,866 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 00:25:06,866 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 00:25:06,866 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 00:25:06,866 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 00:25:06,866 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 00:25:06,866 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 00:25:06,867 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 00:25:06,867 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 00:25:06,867 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 00:25:06,867 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 00:25:06,867 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 00:25:06,867 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 00:25:06,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:25:06,868 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 00:25:06,868 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 00:25:06,868 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 00:25:06,868 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 00:25:06,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 00:25:06,869 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 00:25:06,869 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 00:25:06,869 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 00:25:06,869 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe313da0c6b218ced50e4197dc755b81036d59e37c56d6141b10ae8e848ca9fd [2022-07-14 00:25:07,139 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 00:25:07,166 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 00:25:07,169 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 00:25:07,170 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 00:25:07,171 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 00:25:07,173 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i [2022-07-14 00:25:07,232 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4378763e4/e8278da029fd4036a5c2966c2fc67def/FLAGc8a7dfd16 [2022-07-14 00:25:07,919 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 00:25:07,920 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i [2022-07-14 00:25:07,964 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4378763e4/e8278da029fd4036a5c2966c2fc67def/FLAGc8a7dfd16 [2022-07-14 00:25:07,997 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4378763e4/e8278da029fd4036a5c2966c2fc67def [2022-07-14 00:25:08,000 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 00:25:08,001 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 00:25:08,002 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 00:25:08,002 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 00:25:08,004 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 00:25:08,005 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:25:07" (1/1) ... [2022-07-14 00:25:08,006 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b6550f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:25:08, skipping insertion in model container [2022-07-14 00:25:08,006 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:25:07" (1/1) ... [2022-07-14 00:25:08,010 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 00:25:08,101 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 00:25:08,550 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5693] [2022-07-14 00:25:08,551 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5694-5695] [2022-07-14 00:25:09,055 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-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i[183417,183430] [2022-07-14 00:25:10,898 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-14 00:25:10,924 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:25:10,978 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 00:25:11,128 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5693] [2022-07-14 00:25:11,128 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5694-5695] [2022-07-14 00:25:11,152 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-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i[183417,183430] [2022-07-14 00:25:11,327 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: hash = (unsigned int )((path.dentry)->d_inode)->i_ino & 255U [8524] at de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) at de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckHelper.typeCheckBinaryExpression(TypeCheckHelper.java:207) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.constructBinaryExpression(ExpressionFactory.java:597) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.newBinaryExpression(ExpressionFactory.java:132) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:483) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-14 00:25:11,335 INFO L158 Benchmark]: Toolchain (without parser) took 3333.37ms. Allocated memory was 115.3MB in the beginning and 176.2MB in the end (delta: 60.8MB). Free memory was 83.9MB in the beginning and 99.2MB in the end (delta: -15.2MB). Peak memory consumption was 107.4MB. Max. memory is 16.1GB. [2022-07-14 00:25:11,336 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 115.3MB. Free memory is still 94.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 00:25:11,337 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3331.96ms. Allocated memory was 115.3MB in the beginning and 176.2MB in the end (delta: 60.8MB). Free memory was 83.9MB in the beginning and 99.2MB in the end (delta: -15.2MB). Peak memory consumption was 107.4MB. Max. memory is 16.1GB. [2022-07-14 00:25:11,338 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 115.3MB. Free memory is still 94.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3331.96ms. Allocated memory was 115.3MB in the beginning and 176.2MB in the end (delta: 60.8MB). Free memory was 83.9MB in the beginning and 99.2MB in the end (delta: -15.2MB). Peak memory consumption was 107.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: hash = (unsigned int )((path.dentry)->d_inode)->i_ino & 255U [8524] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: hash = (unsigned int )((path.dentry)->d_inode)->i_ino & 255U [8524]: 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-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.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 fe313da0c6b218ced50e4197dc755b81036d59e37c56d6141b10ae8e848ca9fd --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 00:25:13,138 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 00:25:13,139 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 00:25:13,169 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 00:25:13,169 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 00:25:13,170 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 00:25:13,171 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 00:25:13,172 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 00:25:13,173 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 00:25:13,173 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 00:25:13,174 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 00:25:13,175 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 00:25:13,175 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 00:25:13,181 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 00:25:13,183 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 00:25:13,184 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 00:25:13,185 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 00:25:13,187 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 00:25:13,190 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 00:25:13,193 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 00:25:13,195 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 00:25:13,197 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 00:25:13,198 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 00:25:13,199 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 00:25:13,200 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 00:25:13,204 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 00:25:13,208 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 00:25:13,209 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 00:25:13,210 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 00:25:13,210 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 00:25:13,211 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 00:25:13,211 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 00:25:13,212 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 00:25:13,212 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 00:25:13,213 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 00:25:13,213 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 00:25:13,214 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 00:25:13,219 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 00:25:13,219 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 00:25:13,220 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 00:25:13,220 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 00:25:13,226 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 00:25:13,227 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-14 00:25:13,248 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 00:25:13,249 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 00:25:13,249 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 00:25:13,249 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 00:25:13,250 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 00:25:13,250 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 00:25:13,251 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 00:25:13,251 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 00:25:13,251 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 00:25:13,252 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 00:25:13,252 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 00:25:13,252 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 00:25:13,252 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 00:25:13,252 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 00:25:13,253 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-14 00:25:13,253 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-14 00:25:13,253 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-14 00:25:13,253 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 00:25:13,253 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 00:25:13,253 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 00:25:13,253 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 00:25:13,254 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 00:25:13,254 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 00:25:13,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:25:13,254 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 00:25:13,254 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 00:25:13,254 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 00:25:13,255 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-14 00:25:13,255 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-14 00:25:13,255 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 00:25:13,255 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 00:25:13,255 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 00:25:13,255 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-14 00:25:13,255 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe313da0c6b218ced50e4197dc755b81036d59e37c56d6141b10ae8e848ca9fd [2022-07-14 00:25:13,554 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 00:25:13,578 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 00:25:13,580 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 00:25:13,581 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 00:25:13,582 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 00:25:13,583 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i [2022-07-14 00:25:13,637 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f282cbbf/d7378d686f76432791df35fdf6b2057a/FLAG40b9feeac [2022-07-14 00:25:14,380 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 00:25:14,380 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i [2022-07-14 00:25:14,431 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f282cbbf/d7378d686f76432791df35fdf6b2057a/FLAG40b9feeac [2022-07-14 00:25:14,461 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f282cbbf/d7378d686f76432791df35fdf6b2057a [2022-07-14 00:25:14,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 00:25:14,464 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 00:25:14,466 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 00:25:14,466 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 00:25:14,469 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 00:25:14,470 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:25:14" (1/1) ... [2022-07-14 00:25:14,470 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2782b589 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:25:14, skipping insertion in model container [2022-07-14 00:25:14,471 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:25:14" (1/1) ... [2022-07-14 00:25:14,475 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 00:25:14,614 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 00:25:15,103 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5693] [2022-07-14 00:25:15,103 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5694-5695] [2022-07-14 00:25:15,855 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-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i[183417,183430] [2022-07-14 00:25:17,456 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-14 00:25:17,482 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:25:17,556 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-14 00:25:17,635 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 00:25:17,694 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5693] [2022-07-14 00:25:17,695 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5694-5695] [2022-07-14 00:25:17,707 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-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i[183417,183430] [2022-07-14 00:25:17,879 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-14 00:25:17,887 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:25:17,916 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 00:25:18,036 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5693] [2022-07-14 00:25:18,036 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5694-5695] [2022-07-14 00:25:18,050 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-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i[183417,183430] [2022-07-14 00:25:18,371 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-14 00:25:18,376 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:25:18,508 INFO L208 MainTranslator]: Completed translation [2022-07-14 00:25:18,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:25:18 WrapperNode [2022-07-14 00:25:18,509 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 00:25:18,510 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 00:25:18,510 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 00:25:18,510 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 00:25:18,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:25:18" (1/1) ... [2022-07-14 00:25:18,578 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:25:18" (1/1) ... [2022-07-14 00:25:18,752 INFO L137 Inliner]: procedures = 468, calls = 2280, calls flagged for inlining = 217, calls inlined = 215, statements flattened = 7021 [2022-07-14 00:25:18,753 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 00:25:18,753 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 00:25:18,754 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 00:25:18,754 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 00:25:18,760 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:25:18" (1/1) ... [2022-07-14 00:25:18,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:25:18" (1/1) ... [2022-07-14 00:25:18,827 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:25:18" (1/1) ... [2022-07-14 00:25:18,828 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:25:18" (1/1) ... [2022-07-14 00:25:18,930 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:25:18" (1/1) ... [2022-07-14 00:25:18,955 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:25:18" (1/1) ... [2022-07-14 00:25:18,994 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:25:18" (1/1) ... [2022-07-14 00:25:19,021 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 00:25:19,022 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 00:25:19,022 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 00:25:19,023 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 00:25:19,023 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:25:18" (1/1) ... [2022-07-14 00:25:19,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:25:19,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:25:19,073 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) [2022-07-14 00:25:19,131 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 [2022-07-14 00:25:19,157 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-07-14 00:25:19,158 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-07-14 00:25:19,158 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-07-14 00:25:19,158 INFO L130 BoogieDeclarations]: Found specification of procedure unix_gc [2022-07-14 00:25:19,158 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_gc [2022-07-14 00:25:19,158 INFO L130 BoogieDeclarations]: Found specification of procedure unix_sysctl_unregister [2022-07-14 00:25:19,158 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_sysctl_unregister [2022-07-14 00:25:19,158 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-07-14 00:25:19,158 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-07-14 00:25:19,159 INFO L130 BoogieDeclarations]: Found specification of procedure seq_putc [2022-07-14 00:25:19,159 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_putc [2022-07-14 00:25:19,159 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-07-14 00:25:19,159 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-07-14 00:25:19,159 INFO L130 BoogieDeclarations]: Found specification of procedure sock_sndtimeo [2022-07-14 00:25:19,159 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_sndtimeo [2022-07-14 00:25:19,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-14 00:25:19,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-14 00:25:19,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 00:25:19,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 00:25:19,160 INFO L130 BoogieDeclarations]: Found specification of procedure unix_release_addr [2022-07-14 00:25:19,160 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_release_addr [2022-07-14 00:25:19,160 INFO L130 BoogieDeclarations]: Found specification of procedure unix_state_double_lock [2022-07-14 00:25:19,161 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_state_double_lock [2022-07-14 00:25:19,161 INFO L130 BoogieDeclarations]: Found specification of procedure unix_set_peek_off [2022-07-14 00:25:19,161 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_set_peek_off [2022-07-14 00:25:19,161 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-07-14 00:25:19,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-07-14 00:25:19,161 INFO L130 BoogieDeclarations]: Found specification of procedure unix_dgram_disconnected [2022-07-14 00:25:19,161 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_dgram_disconnected [2022-07-14 00:25:19,162 INFO L130 BoogieDeclarations]: Found specification of procedure __clear_bit [2022-07-14 00:25:19,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __clear_bit [2022-07-14 00:25:19,162 INFO L130 BoogieDeclarations]: Found specification of procedure scm_destroy [2022-07-14 00:25:19,162 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_destroy [2022-07-14 00:25:19,162 INFO L130 BoogieDeclarations]: Found specification of procedure put_cmsg [2022-07-14 00:25:19,162 INFO L138 BoogieDeclarations]: Found implementation of procedure put_cmsg [2022-07-14 00:25:19,162 INFO L130 BoogieDeclarations]: Found specification of procedure unix_create1 [2022-07-14 00:25:19,162 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_create1 [2022-07-14 00:25:19,163 INFO L130 BoogieDeclarations]: Found specification of procedure unix_dgram_poll [2022-07-14 00:25:19,163 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_dgram_poll [2022-07-14 00:25:19,163 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-14 00:25:19,163 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-14 00:25:19,164 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2022-07-14 00:25:19,164 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2022-07-14 00:25:19,164 INFO L130 BoogieDeclarations]: Found specification of procedure unix_recvq_full [2022-07-14 00:25:19,165 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_recvq_full [2022-07-14 00:25:19,165 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-07-14 00:25:19,165 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-07-14 00:25:19,165 INFO L130 BoogieDeclarations]: Found specification of procedure unix_shutdown [2022-07-14 00:25:19,165 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_shutdown [2022-07-14 00:25:19,165 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-07-14 00:25:19,165 INFO L130 BoogieDeclarations]: Found specification of procedure scan_children [2022-07-14 00:25:19,165 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_children [2022-07-14 00:25:19,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-14 00:25:19,165 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-07-14 00:25:19,166 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-07-14 00:25:19,166 INFO L130 BoogieDeclarations]: Found specification of procedure sk_peek_offset_fwd [2022-07-14 00:25:19,166 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_peek_offset_fwd [2022-07-14 00:25:19,166 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-07-14 00:25:19,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 00:25:19,167 INFO L130 BoogieDeclarations]: Found specification of procedure unix_find_other [2022-07-14 00:25:19,167 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_find_other [2022-07-14 00:25:19,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-14 00:25:19,167 INFO L130 BoogieDeclarations]: Found specification of procedure unix_scm_to_skb [2022-07-14 00:25:19,167 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_scm_to_skb [2022-07-14 00:25:19,167 INFO L130 BoogieDeclarations]: Found specification of procedure scm_send [2022-07-14 00:25:19,167 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_send [2022-07-14 00:25:19,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-14 00:25:19,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-14 00:25:19,168 INFO L130 BoogieDeclarations]: Found specification of procedure sk_set_socket [2022-07-14 00:25:19,168 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_set_socket [2022-07-14 00:25:19,168 INFO L130 BoogieDeclarations]: Found specification of procedure unix_autobind [2022-07-14 00:25:19,168 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_autobind [2022-07-14 00:25:19,168 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-14 00:25:19,168 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-14 00:25:19,169 INFO L130 BoogieDeclarations]: Found specification of procedure unix_release_sock [2022-07-14 00:25:19,169 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_release_sock [2022-07-14 00:25:19,169 INFO L130 BoogieDeclarations]: Found specification of procedure sock_put [2022-07-14 00:25:19,169 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_put [2022-07-14 00:25:19,169 INFO L130 BoogieDeclarations]: Found specification of procedure unix_mkname [2022-07-14 00:25:19,170 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_mkname [2022-07-14 00:25:19,170 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-14 00:25:19,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-14 00:25:19,170 INFO L130 BoogieDeclarations]: Found specification of procedure sock_intr_errno [2022-07-14 00:25:19,171 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_intr_errno [2022-07-14 00:25:19,171 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_inc [2022-07-14 00:25:19,171 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_inc [2022-07-14 00:25:19,171 INFO L130 BoogieDeclarations]: Found specification of procedure unix_may_send [2022-07-14 00:25:19,171 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_may_send [2022-07-14 00:25:19,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-14 00:25:19,172 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-14 00:25:19,172 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2022-07-14 00:25:19,172 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2022-07-14 00:25:19,172 INFO L130 BoogieDeclarations]: Found specification of procedure __validate_creds [2022-07-14 00:25:19,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __validate_creds [2022-07-14 00:25:19,172 INFO L130 BoogieDeclarations]: Found specification of procedure unix_listen [2022-07-14 00:25:19,172 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_listen [2022-07-14 00:25:19,173 INFO L130 BoogieDeclarations]: Found specification of procedure sk_sleep [2022-07-14 00:25:19,173 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_sleep [2022-07-14 00:25:19,173 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-07-14 00:25:19,173 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-07-14 00:25:19,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-14 00:25:19,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-14 00:25:19,174 INFO L130 BoogieDeclarations]: Found specification of procedure seq_file_net [2022-07-14 00:25:19,175 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_file_net [2022-07-14 00:25:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure kiocb_to_siocb [2022-07-14 00:25:19,176 INFO L138 BoogieDeclarations]: Found implementation of procedure kiocb_to_siocb [2022-07-14 00:25:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure init_peercred [2022-07-14 00:25:19,176 INFO L138 BoogieDeclarations]: Found implementation of procedure init_peercred [2022-07-14 00:25:19,177 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-07-14 00:25:19,177 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-07-14 00:25:19,177 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2022-07-14 00:25:19,177 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2022-07-14 00:25:19,182 INFO L130 BoogieDeclarations]: Found specification of procedure unix_dgram_sendmsg [2022-07-14 00:25:19,182 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_dgram_sendmsg [2022-07-14 00:25:19,182 INFO L130 BoogieDeclarations]: Found specification of procedure unix_stream_connect [2022-07-14 00:25:19,182 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_stream_connect [2022-07-14 00:25:19,182 INFO L130 BoogieDeclarations]: Found specification of procedure get_cred [2022-07-14 00:25:19,183 INFO L138 BoogieDeclarations]: Found implementation of procedure get_cred [2022-07-14 00:25:19,183 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_dec [2022-07-14 00:25:19,183 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_dec [2022-07-14 00:25:19,183 INFO L130 BoogieDeclarations]: Found specification of procedure unix_skb_len [2022-07-14 00:25:19,183 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_skb_len [2022-07-14 00:25:19,183 INFO L130 BoogieDeclarations]: Found specification of procedure sock_flag [2022-07-14 00:25:19,183 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_flag [2022-07-14 00:25:19,183 INFO L130 BoogieDeclarations]: Found specification of procedure unix_state_double_unlock [2022-07-14 00:25:19,183 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_state_double_unlock [2022-07-14 00:25:19,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 00:25:19,184 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-07-14 00:25:19,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-07-14 00:25:19,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 00:25:19,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 00:25:19,184 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-14 00:25:19,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-14 00:25:19,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-14 00:25:19,184 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 00:25:19,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 00:25:19,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-14 00:25:19,184 INFO L130 BoogieDeclarations]: Found specification of procedure unix_net_exit [2022-07-14 00:25:19,185 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_net_exit [2022-07-14 00:25:19,185 INFO L130 BoogieDeclarations]: Found specification of procedure unix_detach_fds [2022-07-14 00:25:19,185 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_detach_fds [2022-07-14 00:25:19,185 INFO L130 BoogieDeclarations]: Found specification of procedure touch_atime [2022-07-14 00:25:19,185 INFO L138 BoogieDeclarations]: Found implementation of procedure touch_atime [2022-07-14 00:25:19,185 INFO L130 BoogieDeclarations]: Found specification of procedure unix_seq_stop [2022-07-14 00:25:19,185 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_seq_stop [2022-07-14 00:25:19,185 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-07-14 00:25:19,185 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-07-14 00:25:19,185 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-07-14 00:25:19,186 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-07-14 00:25:19,187 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_datagram_iovec [2022-07-14 00:25:19,188 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_datagram_iovec [2022-07-14 00:25:19,188 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-14 00:25:19,188 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-14 00:25:19,188 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-14 00:25:19,188 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-14 00:25:19,188 INFO L130 BoogieDeclarations]: Found specification of procedure unix_accept [2022-07-14 00:25:19,188 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_accept [2022-07-14 00:25:19,188 INFO L130 BoogieDeclarations]: Found specification of procedure unix_dgram_recvmsg [2022-07-14 00:25:19,188 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_dgram_recvmsg [2022-07-14 00:25:19,188 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-14 00:25:19,188 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-14 00:25:19,189 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-07-14 00:25:19,189 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-07-14 00:25:19,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-14 00:25:19,189 INFO L130 BoogieDeclarations]: Found specification of procedure unix_wait_for_peer [2022-07-14 00:25:19,189 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_wait_for_peer [2022-07-14 00:25:19,189 INFO L130 BoogieDeclarations]: Found specification of procedure unix_hash_fold [2022-07-14 00:25:19,189 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_hash_fold [2022-07-14 00:25:19,189 INFO L130 BoogieDeclarations]: Found specification of procedure scan_inflight [2022-07-14 00:25:19,189 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_inflight [2022-07-14 00:25:19,189 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-07-14 00:25:19,190 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-07-14 00:25:19,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 00:25:19,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 00:25:19,190 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-14 00:25:19,190 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-14 00:25:19,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-14 00:25:19,190 INFO L130 BoogieDeclarations]: Found specification of procedure __kuid_val [2022-07-14 00:25:19,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __kuid_val [2022-07-14 00:25:19,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-14 00:25:19,190 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_bh [2022-07-14 00:25:19,191 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_bh [2022-07-14 00:25:19,191 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_bh [2022-07-14 00:25:19,191 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_bh [2022-07-14 00:25:19,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-14 00:25:19,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-14 00:25:19,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-14 00:25:19,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-14 00:25:19,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 00:25:19,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 00:25:19,191 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2022-07-14 00:25:19,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2022-07-14 00:25:19,192 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-14 00:25:19,192 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-14 00:25:19,192 INFO L130 BoogieDeclarations]: Found specification of procedure unix_peer_get [2022-07-14 00:25:19,192 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_peer_get [2022-07-14 00:25:19,192 INFO L130 BoogieDeclarations]: Found specification of procedure unix_bind [2022-07-14 00:25:19,192 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_bind [2022-07-14 00:25:19,192 INFO L130 BoogieDeclarations]: Found specification of procedure sock_hold [2022-07-14 00:25:19,192 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_hold [2022-07-14 00:25:19,192 INFO L130 BoogieDeclarations]: Found specification of procedure unix_copy_addr [2022-07-14 00:25:19,192 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_copy_addr [2022-07-14 00:25:19,193 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-07-14 00:25:19,193 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-07-14 00:25:19,193 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-07-14 00:25:19,193 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-07-14 00:25:19,193 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-14 00:25:19,193 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-14 00:25:19,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-14 00:25:19,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-14 00:25:19,193 INFO L130 BoogieDeclarations]: Found specification of procedure sock_poll_wait [2022-07-14 00:25:19,193 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_poll_wait [2022-07-14 00:25:19,193 INFO L130 BoogieDeclarations]: Found specification of procedure __unix_find_socket_byname [2022-07-14 00:25:19,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __unix_find_socket_byname [2022-07-14 00:25:19,194 INFO L130 BoogieDeclarations]: Found specification of procedure sock_net [2022-07-14 00:25:19,194 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_net [2022-07-14 00:25:19,194 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-14 00:25:19,194 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-14 00:25:19,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-14 00:25:19,194 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-14 00:25:19,194 INFO L130 BoogieDeclarations]: Found specification of procedure scm_recv [2022-07-14 00:25:19,194 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_recv [2022-07-14 00:25:19,194 INFO L130 BoogieDeclarations]: Found specification of procedure unix_release [2022-07-14 00:25:19,195 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_release [2022-07-14 00:25:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-14 00:25:19,195 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-14 00:25:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure path_put [2022-07-14 00:25:19,195 INFO L138 BoogieDeclarations]: Found implementation of procedure path_put [2022-07-14 00:25:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure sock_no_getsockopt [2022-07-14 00:25:19,196 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_no_getsockopt [2022-07-14 00:25:19,198 INFO L130 BoogieDeclarations]: Found specification of procedure sock_alloc_send_pskb [2022-07-14 00:25:19,198 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_alloc_send_pskb [2022-07-14 00:25:19,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 00:25:19,199 INFO L130 BoogieDeclarations]: Found specification of procedure sk_peek_offset [2022-07-14 00:25:19,199 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_peek_offset [2022-07-14 00:25:19,199 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-14 00:25:19,199 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-14 00:25:19,199 INFO L130 BoogieDeclarations]: Found specification of procedure unix_get_socket [2022-07-14 00:25:19,199 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_get_socket [2022-07-14 00:25:19,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 00:25:19,200 INFO L130 BoogieDeclarations]: Found specification of procedure sk_unhashed [2022-07-14 00:25:19,200 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_unhashed [2022-07-14 00:25:19,200 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2022-07-14 00:25:19,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2022-07-14 00:25:19,200 INFO L130 BoogieDeclarations]: Found specification of procedure get_pid [2022-07-14 00:25:19,201 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pid [2022-07-14 00:25:19,201 INFO L130 BoogieDeclarations]: Found specification of procedure put_pid [2022-07-14 00:25:19,201 INFO L138 BoogieDeclarations]: Found implementation of procedure put_pid [2022-07-14 00:25:19,201 INFO L130 BoogieDeclarations]: Found specification of procedure scm_set_cred [2022-07-14 00:25:19,201 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_set_cred [2022-07-14 00:25:19,201 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2022-07-14 00:25:19,201 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2022-07-14 00:25:19,201 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-07-14 00:25:19,201 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-07-14 00:25:19,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-14 00:25:19,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-14 00:25:19,202 INFO L130 BoogieDeclarations]: Found specification of procedure local_bh_disable [2022-07-14 00:25:19,202 INFO L138 BoogieDeclarations]: Found implementation of procedure local_bh_disable [2022-07-14 00:25:19,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-14 00:25:19,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-14 00:25:19,202 INFO L130 BoogieDeclarations]: Found specification of procedure sk_wake_async [2022-07-14 00:25:19,202 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_wake_async [2022-07-14 00:25:19,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 00:25:19,202 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-07-14 00:25:19,202 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-07-14 00:25:19,202 INFO L130 BoogieDeclarations]: Found specification of procedure maybe_add_creds [2022-07-14 00:25:19,202 INFO L138 BoogieDeclarations]: Found implementation of procedure maybe_add_creds [2022-07-14 00:25:19,203 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-07-14 00:25:19,203 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-07-14 00:25:19,203 INFO L130 BoogieDeclarations]: Found specification of procedure skb_free_datagram [2022-07-14 00:25:19,203 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_free_datagram [2022-07-14 00:25:19,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-14 00:25:19,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-14 00:25:19,203 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_datagram_from_iovec [2022-07-14 00:25:19,203 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_datagram_from_iovec [2022-07-14 00:25:19,203 INFO L130 BoogieDeclarations]: Found specification of procedure sock_prot_inuse_add [2022-07-14 00:25:19,203 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_prot_inuse_add [2022-07-14 00:25:19,203 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-07-14 00:25:19,204 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-07-14 00:25:19,204 INFO L130 BoogieDeclarations]: Found specification of procedure sk_next [2022-07-14 00:25:19,204 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_next [2022-07-14 00:25:19,204 INFO L130 BoogieDeclarations]: Found specification of procedure __unix_insert_socket [2022-07-14 00:25:19,204 INFO L138 BoogieDeclarations]: Found implementation of procedure __unix_insert_socket [2022-07-14 00:25:19,204 INFO L130 BoogieDeclarations]: Found specification of procedure sock_error [2022-07-14 00:25:19,204 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_error [2022-07-14 00:25:19,204 INFO L130 BoogieDeclarations]: Found specification of procedure __unix_remove_socket [2022-07-14 00:25:19,204 INFO L138 BoogieDeclarations]: Found implementation of procedure __unix_remove_socket [2022-07-14 00:25:19,204 INFO L130 BoogieDeclarations]: Found specification of procedure csum_partial [2022-07-14 00:25:19,204 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_partial [2022-07-14 00:25:19,205 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-14 00:25:19,205 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-14 00:25:19,205 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2022-07-14 00:25:19,205 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2022-07-14 00:25:19,205 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-14 00:25:19,205 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-14 00:25:19,205 INFO L130 BoogieDeclarations]: Found specification of procedure scm_fp_dup [2022-07-14 00:25:19,205 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_fp_dup [2022-07-14 00:25:19,205 INFO L130 BoogieDeclarations]: Found specification of procedure security_unix_may_send [2022-07-14 00:25:19,205 INFO L138 BoogieDeclarations]: Found implementation of procedure security_unix_may_send [2022-07-14 00:25:19,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-14 00:25:19,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-14 00:25:19,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-14 00:25:19,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-14 00:25:19,206 INFO L130 BoogieDeclarations]: Found specification of procedure sock_no_mmap [2022-07-14 00:25:19,206 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_no_mmap [2022-07-14 00:25:19,206 INFO L130 BoogieDeclarations]: Found specification of procedure scm_destroy_cred [2022-07-14 00:25:19,206 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_destroy_cred [2022-07-14 00:25:19,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 00:25:19,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 00:25:19,206 INFO L130 BoogieDeclarations]: Found specification of procedure put_cred [2022-07-14 00:25:19,206 INFO L138 BoogieDeclarations]: Found implementation of procedure put_cred [2022-07-14 00:25:19,207 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up_sync_key [2022-07-14 00:25:19,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up_sync_key [2022-07-14 00:25:19,207 INFO L130 BoogieDeclarations]: Found specification of procedure __kgid_val [2022-07-14 00:25:19,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __kgid_val [2022-07-14 00:25:19,207 INFO L130 BoogieDeclarations]: Found specification of procedure task_tgid [2022-07-14 00:25:19,207 INFO L138 BoogieDeclarations]: Found implementation of procedure task_tgid [2022-07-14 00:25:19,207 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-07-14 00:25:19,207 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-07-14 00:25:19,207 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-07-14 00:25:19,207 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-07-14 00:25:19,208 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_unix_gc [2022-07-14 00:25:19,208 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_unix_gc [2022-07-14 00:25:19,208 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit [2022-07-14 00:25:19,208 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit [2022-07-14 00:25:19,208 INFO L130 BoogieDeclarations]: Found specification of procedure unix_next_socket [2022-07-14 00:25:19,208 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_next_socket [2022-07-14 00:25:19,208 INFO L130 BoogieDeclarations]: Found specification of procedure sock_no_setsockopt [2022-07-14 00:25:19,208 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_no_setsockopt [2022-07-14 00:25:19,208 INFO L130 BoogieDeclarations]: Found specification of procedure sk_peek_offset_bwd [2022-07-14 00:25:19,208 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_peek_offset_bwd [2022-07-14 00:25:19,208 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-14 00:25:19,208 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-14 00:25:19,209 INFO L130 BoogieDeclarations]: Found specification of procedure unix_writable [2022-07-14 00:25:19,209 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_writable [2022-07-14 00:25:19,209 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_read [2022-07-14 00:25:19,209 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_read [2022-07-14 00:25:19,209 INFO L130 BoogieDeclarations]: Found specification of procedure unix_socketpair [2022-07-14 00:25:19,209 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_socketpair [2022-07-14 00:25:19,209 INFO L130 BoogieDeclarations]: Found specification of procedure sock_no_sendpage [2022-07-14 00:25:19,209 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_no_sendpage [2022-07-14 00:25:19,209 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-14 00:25:19,209 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-14 00:25:19,209 INFO L130 BoogieDeclarations]: Found specification of procedure unix_getname [2022-07-14 00:25:19,210 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_getname [2022-07-14 00:25:19,210 INFO L130 BoogieDeclarations]: Found specification of procedure unix_ioctl [2022-07-14 00:25:19,210 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_ioctl [2022-07-14 00:25:19,210 INFO L130 BoogieDeclarations]: Found specification of procedure local_bh_enable [2022-07-14 00:25:19,210 INFO L138 BoogieDeclarations]: Found implementation of procedure local_bh_enable [2022-07-14 00:25:20,057 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 00:25:20,062 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 00:25:20,363 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 00:25:43,390 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 00:25:43,405 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 00:25:43,406 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-14 00:25:43,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:25:43 BoogieIcfgContainer [2022-07-14 00:25:43,409 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 00:25:43,411 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 00:25:43,411 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 00:25:43,413 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 00:25:43,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 12:25:14" (1/3) ... [2022-07-14 00:25:43,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@781c555e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:25:43, skipping insertion in model container [2022-07-14 00:25:43,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:25:18" (2/3) ... [2022-07-14 00:25:43,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@781c555e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:25:43, skipping insertion in model container [2022-07-14 00:25:43,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:25:43" (3/3) ... [2022-07-14 00:25:43,416 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i [2022-07-14 00:25:43,425 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 00:25:43,426 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-14 00:25:43,502 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 00:25:43,510 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@6f4cbe4f, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@160fd350 [2022-07-14 00:25:43,510 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-14 00:25:43,521 INFO L276 IsEmpty]: Start isEmpty. Operand has 2739 states, 1884 states have (on average 1.3540339702760085) internal successors, (2551), 1986 states have internal predecessors, (2551), 697 states have call successors, (697), 157 states have call predecessors, (697), 156 states have return successors, (688), 672 states have call predecessors, (688), 688 states have call successors, (688) [2022-07-14 00:25:43,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-07-14 00:25:43,556 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:25:43,557 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:25:43,558 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:25:43,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:25:43,562 INFO L85 PathProgramCache]: Analyzing trace with hash 2586623, now seen corresponding path program 1 times [2022-07-14 00:25:43,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:25:43,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [873652185] [2022-07-14 00:25:43,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:25:43,575 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:25:43,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:25:43,578 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) [2022-07-14 00:25:43,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-14 00:25:45,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:45,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 1756 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:25:45,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:25:45,988 INFO L134 CoverageAnalysis]: Checked inductivity of 1516 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1516 trivial. 0 not checked. [2022-07-14 00:25:45,988 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:25:45,988 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:25:45,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [873652185] [2022-07-14 00:25:45,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [873652185] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:25:45,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:25:45,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:25:45,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739968542] [2022-07-14 00:25:45,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:25:45,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:25:45,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:25:46,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:25:46,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:25:46,044 INFO L87 Difference]: Start difference. First operand has 2739 states, 1884 states have (on average 1.3540339702760085) internal successors, (2551), 1986 states have internal predecessors, (2551), 697 states have call successors, (697), 157 states have call predecessors, (697), 156 states have return successors, (688), 672 states have call predecessors, (688), 688 states have call successors, (688) Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-14 00:25:46,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:25:46,716 INFO L93 Difference]: Finished difference Result 8008 states and 11636 transitions. [2022-07-14 00:25:46,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:25:46,719 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 213 [2022-07-14 00:25:46,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:25:46,757 INFO L225 Difference]: With dead ends: 8008 [2022-07-14 00:25:46,757 INFO L226 Difference]: Without dead ends: 5221 [2022-07-14 00:25:46,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:25:46,785 INFO L413 NwaCegarLoop]: 4542 mSDtfsCounter, 3688 mSDsluCounter, 3791 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3688 SdHoareTripleChecker+Valid, 8333 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 00:25:46,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3688 Valid, 8333 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 00:25:46,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5221 states. [2022-07-14 00:25:47,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5221 to 5216. [2022-07-14 00:25:47,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5216 states, 3608 states have (on average 1.3450665188470066) internal successors, (4853), 3783 states have internal predecessors, (4853), 1299 states have call successors, (1299), 309 states have call predecessors, (1299), 308 states have return successors, (1298), 1269 states have call predecessors, (1298), 1298 states have call successors, (1298) [2022-07-14 00:25:47,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5216 states to 5216 states and 7450 transitions. [2022-07-14 00:25:47,099 INFO L78 Accepts]: Start accepts. Automaton has 5216 states and 7450 transitions. Word has length 213 [2022-07-14 00:25:47,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:25:47,100 INFO L495 AbstractCegarLoop]: Abstraction has 5216 states and 7450 transitions. [2022-07-14 00:25:47,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-14 00:25:47,100 INFO L276 IsEmpty]: Start isEmpty. Operand 5216 states and 7450 transitions. [2022-07-14 00:25:47,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-07-14 00:25:47,106 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:25:47,106 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:25:47,180 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-14 00:25:47,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:25:47,332 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:25:47,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:25:47,332 INFO L85 PathProgramCache]: Analyzing trace with hash 517155252, now seen corresponding path program 1 times [2022-07-14 00:25:47,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:25:47,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [179121056] [2022-07-14 00:25:47,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:25:47,334 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:25:47,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:25:47,344 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) [2022-07-14 00:25:47,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-14 00:25:49,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:49,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 1758 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:25:49,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:25:49,346 INFO L134 CoverageAnalysis]: Checked inductivity of 1516 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1516 trivial. 0 not checked. [2022-07-14 00:25:49,347 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:25:49,348 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:25:49,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [179121056] [2022-07-14 00:25:49,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [179121056] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:25:49,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:25:49,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:25:49,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091375022] [2022-07-14 00:25:49,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:25:49,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:25:49,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:25:49,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:25:49,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:25:49,363 INFO L87 Difference]: Start difference. First operand 5216 states and 7450 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-14 00:25:49,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:25:49,923 INFO L93 Difference]: Finished difference Result 14791 states and 21009 transitions. [2022-07-14 00:25:49,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:25:49,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 214 [2022-07-14 00:25:49,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:25:49,991 INFO L225 Difference]: With dead ends: 14791 [2022-07-14 00:25:49,991 INFO L226 Difference]: Without dead ends: 9634 [2022-07-14 00:25:50,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:25:50,021 INFO L413 NwaCegarLoop]: 4605 mSDtfsCounter, 3287 mSDsluCounter, 3748 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3287 SdHoareTripleChecker+Valid, 8353 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 00:25:50,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3287 Valid, 8353 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 00:25:50,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9634 states. [2022-07-14 00:25:50,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9634 to 9627. [2022-07-14 00:25:50,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9627 states, 6657 states have (on average 1.3406940063091484) internal successors, (8925), 6996 states have internal predecessors, (8925), 2357 states have call successors, (2357), 613 states have call predecessors, (2357), 612 states have return successors, (2356), 2301 states have call predecessors, (2356), 2356 states have call successors, (2356) [2022-07-14 00:25:50,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9627 states to 9627 states and 13638 transitions. [2022-07-14 00:25:50,348 INFO L78 Accepts]: Start accepts. Automaton has 9627 states and 13638 transitions. Word has length 214 [2022-07-14 00:25:50,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:25:50,349 INFO L495 AbstractCegarLoop]: Abstraction has 9627 states and 13638 transitions. [2022-07-14 00:25:50,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-14 00:25:50,350 INFO L276 IsEmpty]: Start isEmpty. Operand 9627 states and 13638 transitions. [2022-07-14 00:25:50,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-07-14 00:25:50,353 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:25:50,354 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:25:50,400 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-14 00:25:50,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:25:50,581 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:25:50,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:25:50,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1347570925, now seen corresponding path program 1 times [2022-07-14 00:25:50,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:25:50,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [409002851] [2022-07-14 00:25:50,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:25:50,583 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:25:50,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:25:50,588 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) [2022-07-14 00:25:50,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-14 00:25:52,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:52,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 1770 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:25:52,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:25:52,829 INFO L134 CoverageAnalysis]: Checked inductivity of 1516 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1516 trivial. 0 not checked. [2022-07-14 00:25:52,829 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:25:52,829 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:25:52,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [409002851] [2022-07-14 00:25:52,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [409002851] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:25:52,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:25:52,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:25:52,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667814401] [2022-07-14 00:25:52,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:25:52,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:25:52,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:25:52,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:25:52,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:25:52,831 INFO L87 Difference]: Start difference. First operand 9627 states and 13638 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-14 00:25:53,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:25:53,459 INFO L93 Difference]: Finished difference Result 26193 states and 36968 transitions. [2022-07-14 00:25:53,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:25:53,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 220 [2022-07-14 00:25:53,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:25:53,596 INFO L225 Difference]: With dead ends: 26193 [2022-07-14 00:25:53,596 INFO L226 Difference]: Without dead ends: 16625 [2022-07-14 00:25:53,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:25:53,644 INFO L413 NwaCegarLoop]: 6635 mSDtfsCounter, 3670 mSDsluCounter, 3748 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3670 SdHoareTripleChecker+Valid, 10383 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 00:25:53,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3670 Valid, 10383 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 00:25:53,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16625 states. [2022-07-14 00:25:54,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16625 to 16622. [2022-07-14 00:25:54,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16622 states, 11543 states have (on average 1.3377804730139478) internal successors, (15442), 12127 states have internal predecessors, (15442), 3985 states have call successors, (3985), 1094 states have call predecessors, (3985), 1093 states have return successors, (3984), 3889 states have call predecessors, (3984), 3984 states have call successors, (3984) [2022-07-14 00:25:54,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16622 states to 16622 states and 23411 transitions. [2022-07-14 00:25:54,312 INFO L78 Accepts]: Start accepts. Automaton has 16622 states and 23411 transitions. Word has length 220 [2022-07-14 00:25:54,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:25:54,314 INFO L495 AbstractCegarLoop]: Abstraction has 16622 states and 23411 transitions. [2022-07-14 00:25:54,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-14 00:25:54,314 INFO L276 IsEmpty]: Start isEmpty. Operand 16622 states and 23411 transitions. [2022-07-14 00:25:54,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2022-07-14 00:25:54,329 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:25:54,329 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:25:54,382 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-14 00:25:54,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:25:54,556 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:25:54,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:25:54,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1196821462, now seen corresponding path program 1 times [2022-07-14 00:25:54,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:25:54,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1071213233] [2022-07-14 00:25:54,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:25:54,558 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:25:54,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:25:54,575 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) [2022-07-14 00:25:54,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-14 00:25:56,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:56,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 2220 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 00:25:56,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:25:56,971 INFO L134 CoverageAnalysis]: Checked inductivity of 4908 backedges. 2468 proven. 0 refuted. 0 times theorem prover too weak. 2440 trivial. 0 not checked. [2022-07-14 00:25:56,972 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:25:56,973 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:25:56,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1071213233] [2022-07-14 00:25:56,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1071213233] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:25:56,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:25:56,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 00:25:56,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446893591] [2022-07-14 00:25:56,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:25:56,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:25:56,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:25:56,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:25:56,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:25:56,975 INFO L87 Difference]: Start difference. First operand 16622 states and 23411 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-07-14 00:25:59,080 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:26:00,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:26:00,084 INFO L93 Difference]: Finished difference Result 33209 states and 46764 transitions. [2022-07-14 00:26:00,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 00:26:00,085 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) Word has length 370 [2022-07-14 00:26:00,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:26:00,159 INFO L225 Difference]: With dead ends: 33209 [2022-07-14 00:26:00,159 INFO L226 Difference]: Without dead ends: 16615 [2022-07-14 00:26:00,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 366 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:26:00,219 INFO L413 NwaCegarLoop]: 3886 mSDtfsCounter, 6 mSDsluCounter, 11653 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 15539 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-14 00:26:00,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 15539 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-07-14 00:26:00,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16615 states. [2022-07-14 00:26:00,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16615 to 16587. [2022-07-14 00:26:00,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16587 states, 11508 states have (on average 1.3374174487313173) internal successors, (15391), 12092 states have internal predecessors, (15391), 3985 states have call successors, (3985), 1094 states have call predecessors, (3985), 1093 states have return successors, (3984), 3889 states have call predecessors, (3984), 3984 states have call successors, (3984) [2022-07-14 00:26:00,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16587 states to 16587 states and 23360 transitions. [2022-07-14 00:26:00,727 INFO L78 Accepts]: Start accepts. Automaton has 16587 states and 23360 transitions. Word has length 370 [2022-07-14 00:26:00,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:26:00,730 INFO L495 AbstractCegarLoop]: Abstraction has 16587 states and 23360 transitions. [2022-07-14 00:26:00,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-07-14 00:26:00,730 INFO L276 IsEmpty]: Start isEmpty. Operand 16587 states and 23360 transitions. [2022-07-14 00:26:00,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2022-07-14 00:26:00,747 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:26:00,748 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:26:00,804 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-14 00:26:00,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:26:00,968 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:26:00,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:26:00,968 INFO L85 PathProgramCache]: Analyzing trace with hash 41778221, now seen corresponding path program 1 times [2022-07-14 00:26:00,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:26:00,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [974749277] [2022-07-14 00:26:00,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:26:00,970 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:26:00,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:26:00,976 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) [2022-07-14 00:26:01,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-14 00:26:03,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:03,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 2227 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-14 00:26:03,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:26:05,157 INFO L134 CoverageAnalysis]: Checked inductivity of 4906 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4906 trivial. 0 not checked. [2022-07-14 00:26:05,157 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:26:05,157 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:26:05,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [974749277] [2022-07-14 00:26:05,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [974749277] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:26:05,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:26:05,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 00:26:05,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101823386] [2022-07-14 00:26:05,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:26:05,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:26:05,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:26:05,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:26:05,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:26:05,159 INFO L87 Difference]: Start difference. First operand 16587 states and 23360 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2022-07-14 00:26:05,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:26:05,678 INFO L93 Difference]: Finished difference Result 27677 states and 38870 transitions. [2022-07-14 00:26:05,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:26:05,678 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) Word has length 371 [2022-07-14 00:26:05,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:26:05,838 INFO L225 Difference]: With dead ends: 27677 [2022-07-14 00:26:05,838 INFO L226 Difference]: Without dead ends: 27674 [2022-07-14 00:26:05,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:26:05,862 INFO L413 NwaCegarLoop]: 4634 mSDtfsCounter, 2951 mSDsluCounter, 3269 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2951 SdHoareTripleChecker+Valid, 7903 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 00:26:05,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2951 Valid, 7903 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 00:26:05,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27674 states. [2022-07-14 00:26:06,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27674 to 27192. [2022-07-14 00:26:06,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27192 states, 19243 states have (on average 1.3444369381073638) internal successors, (25871), 20094 states have internal predecessors, (25871), 5996 states have call successors, (5996), 1964 states have call predecessors, (5996), 1952 states have return successors, (6192), 5814 states have call predecessors, (6192), 5995 states have call successors, (6192) [2022-07-14 00:26:06,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27192 states to 27192 states and 38059 transitions. [2022-07-14 00:26:06,728 INFO L78 Accepts]: Start accepts. Automaton has 27192 states and 38059 transitions. Word has length 371 [2022-07-14 00:26:06,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:26:06,729 INFO L495 AbstractCegarLoop]: Abstraction has 27192 states and 38059 transitions. [2022-07-14 00:26:06,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2022-07-14 00:26:06,730 INFO L276 IsEmpty]: Start isEmpty. Operand 27192 states and 38059 transitions. [2022-07-14 00:26:06,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2022-07-14 00:26:06,902 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:26:06,903 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:26:06,955 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-07-14 00:26:07,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:26:07,120 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:26:07,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:26:07,120 INFO L85 PathProgramCache]: Analyzing trace with hash -810105328, now seen corresponding path program 1 times [2022-07-14 00:26:07,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:26:07,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [842670212] [2022-07-14 00:26:07,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:26:07,122 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:26:07,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:26:07,124 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) [2022-07-14 00:26:07,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-14 00:26:09,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:09,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 2289 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 00:26:09,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:26:09,522 INFO L134 CoverageAnalysis]: Checked inductivity of 4915 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4911 trivial. 0 not checked. [2022-07-14 00:26:09,523 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:26:09,523 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:26:09,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [842670212] [2022-07-14 00:26:09,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [842670212] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:26:09,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:26:09,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 00:26:09,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511677063] [2022-07-14 00:26:09,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:26:09,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 00:26:09,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:26:09,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 00:26:09,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 00:26:09,524 INFO L87 Difference]: Start difference. First operand 27192 states and 38059 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-07-14 00:26:11,636 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:26:14,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:26:14,281 INFO L93 Difference]: Finished difference Result 81456 states and 113995 transitions. [2022-07-14 00:26:14,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 00:26:14,295 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) Word has length 397 [2022-07-14 00:26:14,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:26:14,802 INFO L225 Difference]: With dead ends: 81456 [2022-07-14 00:26:14,802 INFO L226 Difference]: Without dead ends: 54332 [2022-07-14 00:26:14,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 395 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:26:14,881 INFO L413 NwaCegarLoop]: 7369 mSDtfsCounter, 4408 mSDsluCounter, 10513 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 365 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4408 SdHoareTripleChecker+Valid, 17882 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 365 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-07-14 00:26:14,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4408 Valid, 17882 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [365 Valid, 200 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2022-07-14 00:26:14,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54332 states. [2022-07-14 00:26:16,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54332 to 54305. [2022-07-14 00:26:16,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54305 states, 38441 states have (on average 1.34439790848313) internal successors, (51680), 40151 states have internal predecessors, (51680), 11960 states have call successors, (11960), 3926 states have call predecessors, (11960), 3903 states have return successors, (12353), 11589 states have call predecessors, (12353), 11959 states have call successors, (12353) [2022-07-14 00:26:16,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54305 states to 54305 states and 75993 transitions. [2022-07-14 00:26:16,912 INFO L78 Accepts]: Start accepts. Automaton has 54305 states and 75993 transitions. Word has length 397 [2022-07-14 00:26:16,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:26:16,913 INFO L495 AbstractCegarLoop]: Abstraction has 54305 states and 75993 transitions. [2022-07-14 00:26:16,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-07-14 00:26:16,913 INFO L276 IsEmpty]: Start isEmpty. Operand 54305 states and 75993 transitions. [2022-07-14 00:26:16,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2022-07-14 00:26:16,988 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:26:16,989 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:26:17,044 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-07-14 00:26:17,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:26:17,207 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:26:17,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:26:17,208 INFO L85 PathProgramCache]: Analyzing trace with hash -955879295, now seen corresponding path program 1 times [2022-07-14 00:26:17,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:26:17,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1725077019] [2022-07-14 00:26:17,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:26:17,209 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:26:17,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:26:17,220 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) [2022-07-14 00:26:17,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-14 00:26:19,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:19,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 2289 conjuncts, 26 conjunts are in the unsatisfiable core [2022-07-14 00:26:19,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:26:24,574 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 23 [2022-07-14 00:26:24,794 INFO L134 CoverageAnalysis]: Checked inductivity of 4919 backedges. 1781 proven. 30 refuted. 0 times theorem prover too weak. 3108 trivial. 0 not checked. [2022-07-14 00:26:24,794 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 00:26:26,448 INFO L356 Elim1Store]: treesize reduction 482, result has 12.8 percent of original size [2022-07-14 00:26:26,449 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 82 treesize of output 96 [2022-07-14 00:26:56,855 INFO L134 CoverageAnalysis]: Checked inductivity of 4919 backedges. 76 proven. 37 refuted. 0 times theorem prover too weak. 4806 trivial. 0 not checked. [2022-07-14 00:26:56,855 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:26:56,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1725077019] [2022-07-14 00:26:56,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1725077019] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 00:26:56,855 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 00:26:56,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 24 [2022-07-14 00:26:56,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162886456] [2022-07-14 00:26:56,856 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 00:26:56,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-14 00:26:56,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:26:56,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-14 00:26:56,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=482, Unknown=0, NotChecked=0, Total=552 [2022-07-14 00:26:56,857 INFO L87 Difference]: Start difference. First operand 54305 states and 75993 transitions. Second operand has 24 states, 24 states have (on average 11.208333333333334) internal successors, (269), 20 states have internal predecessors, (269), 13 states have call successors, (115), 8 states have call predecessors, (115), 8 states have return successors, (110), 13 states have call predecessors, (110), 11 states have call successors, (110) [2022-07-14 00:26:59,128 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:27:01,144 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:27:03,154 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:27:05,170 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:27:07,182 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:27:09,192 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:27:55,883 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:27:57,902 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:28:01,021 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:28:02,740 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:28:04,763 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:28:06,773 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:28:08,784 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:28:12,012 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:28:20,524 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:28:22,883 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:28:30,134 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:28:31,719 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:28:33,253 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:28:34,705 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:28:38,770 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:28:40,785 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:28:42,793 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:28:44,805 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:28:46,819 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:28:51,350 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:28:53,379 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:28:56,277 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:28:59,708 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:29:15,656 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:29:34,503 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:29:36,524 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:29:38,286 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []