./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 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_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-?-3598765 [2022-07-21 11:17:53,714 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 11:17:53,715 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 11:17:53,749 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 11:17:53,749 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 11:17:53,750 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 11:17:53,754 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 11:17:53,756 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 11:17:53,757 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 11:17:53,760 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 11:17:53,761 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 11:17:53,765 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 11:17:53,765 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 11:17:53,766 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 11:17:53,767 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 11:17:53,768 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 11:17:53,770 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 11:17:53,770 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 11:17:53,772 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 11:17:53,773 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 11:17:53,775 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 11:17:53,776 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 11:17:53,777 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 11:17:53,778 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 11:17:53,780 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 11:17:53,782 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 11:17:53,784 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 11:17:53,785 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 11:17:53,785 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 11:17:53,785 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 11:17:53,786 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 11:17:53,786 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 11:17:53,787 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 11:17:53,788 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 11:17:53,789 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 11:17:53,789 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 11:17:53,790 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 11:17:53,790 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 11:17:53,790 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 11:17:53,790 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 11:17:53,791 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 11:17:53,792 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 11:17:53,796 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 11:17:53,817 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 11:17:53,818 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 11:17:53,818 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 11:17:53,818 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 11:17:53,819 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 11:17:53,819 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 11:17:53,820 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 11:17:53,820 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 11:17:53,820 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 11:17:53,821 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 11:17:53,821 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 11:17:53,821 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 11:17:53,821 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 11:17:53,821 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 11:17:53,821 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 11:17:53,822 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 11:17:53,822 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 11:17:53,822 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 11:17:53,822 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 11:17:53,822 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 11:17:53,822 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 11:17:53,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:17:53,823 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 11:17:53,823 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 11:17:53,823 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 11:17:53,823 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 11:17:53,823 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 11:17:53,823 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 11:17:53,823 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 11:17:53,824 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 11:17:53,824 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe313da0c6b218ced50e4197dc755b81036d59e37c56d6141b10ae8e848ca9fd [2022-07-21 11:17:54,063 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 11:17:54,078 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 11:17:54,082 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 11:17:54,082 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 11:17:54,083 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 11:17:54,084 INFO L432 ainManager$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 [2022-07-21 11:17:54,122 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d39431fe9/36a781f593db4d6ca97847c2130f2b6e/FLAGcd63b149c [2022-07-21 11:17:54,841 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 11:17:54,842 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 [2022-07-21 11:17:54,877 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d39431fe9/36a781f593db4d6ca97847c2130f2b6e/FLAGcd63b149c [2022-07-21 11:17:55,161 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d39431fe9/36a781f593db4d6ca97847c2130f2b6e [2022-07-21 11:17:55,163 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 11:17:55,164 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 11:17:55,165 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 11:17:55,165 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 11:17:55,173 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 11:17:55,174 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:17:55" (1/1) ... [2022-07-21 11:17:55,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b259713 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:17:55, skipping insertion in model container [2022-07-21 11:17:55,175 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:17:55" (1/1) ... [2022-07-21 11:17:55,179 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 11:17:55,293 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 11:17:55,696 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5693] [2022-07-21 11:17:55,697 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] [2022-07-21 11:17:56,145 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] [2022-07-21 11:17:57,176 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-21 11:17:57,194 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:17:57,256 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 11:17:57,345 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5693] [2022-07-21 11:17:57,346 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] [2022-07-21 11:17:57,357 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] [2022-07-21 11:17:57,492 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) [2022-07-21 11:17:57,500 INFO L158 Benchmark]: Toolchain (without parser) took 2335.54ms. Allocated memory was 60.8MB in the beginning and 163.6MB in the end (delta: 102.8MB). Free memory was 38.3MB in the beginning and 95.7MB in the end (delta: -57.4MB). Peak memory consumption was 71.0MB. Max. memory is 16.1GB. [2022-07-21 11:17:57,501 INFO L158 Benchmark]: CDTParser took 0.71ms. Allocated memory is still 60.8MB. Free memory was 43.9MB in the beginning and 43.8MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 11:17:57,501 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2334.19ms. Allocated memory was 60.8MB in the beginning and 163.6MB in the end (delta: 102.8MB). Free memory was 38.0MB in the beginning and 95.7MB in the end (delta: -57.7MB). Peak memory consumption was 68.9MB. Max. memory is 16.1GB. [2022-07-21 11:17:57,502 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71ms. Allocated memory is still 60.8MB. Free memory was 43.9MB in the beginning and 43.8MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2334.19ms. Allocated memory was 60.8MB in the beginning and 163.6MB in the end (delta: 102.8MB). Free memory was 38.0MB in the beginning and 95.7MB in the end (delta: -57.7MB). Peak memory consumption was 68.9MB. 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-?-3598765 [2022-07-21 11:17:58,921 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 11:17:58,923 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 11:17:58,955 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 11:17:58,955 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 11:17:58,956 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 11:17:58,960 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 11:17:58,963 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 11:17:58,965 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 11:17:58,967 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 11:17:58,968 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 11:17:58,969 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 11:17:58,970 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 11:17:58,973 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 11:17:58,974 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 11:17:58,975 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 11:17:58,976 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 11:17:58,977 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 11:17:58,979 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 11:17:58,981 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 11:17:58,988 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 11:17:58,989 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 11:17:58,989 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 11:17:58,990 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 11:17:58,990 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 11:17:58,993 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 11:17:58,997 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 11:17:58,997 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 11:17:58,998 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 11:17:58,998 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 11:17:58,999 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 11:17:58,999 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 11:17:58,999 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 11:17:59,000 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 11:17:59,001 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 11:17:59,002 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 11:17:59,003 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 11:17:59,003 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 11:17:59,003 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 11:17:59,004 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 11:17:59,004 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 11:17:59,005 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 11:17:59,007 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-21 11:17:59,027 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 11:17:59,028 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 11:17:59,028 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 11:17:59,028 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 11:17:59,029 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 11:17:59,029 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 11:17:59,030 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 11:17:59,030 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 11:17:59,030 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 11:17:59,031 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 11:17:59,031 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 11:17:59,031 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 11:17:59,031 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 11:17:59,032 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 11:17:59,032 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 11:17:59,032 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 11:17:59,032 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 11:17:59,032 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 11:17:59,032 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 11:17:59,032 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 11:17:59,033 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 11:17:59,033 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 11:17:59,033 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 11:17:59,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:17:59,034 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 11:17:59,034 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 11:17:59,034 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 11:17:59,034 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 11:17:59,034 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 11:17:59,034 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 11:17:59,035 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 11:17:59,035 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 11:17:59,035 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 11:17:59,035 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe313da0c6b218ced50e4197dc755b81036d59e37c56d6141b10ae8e848ca9fd [2022-07-21 11:17:59,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 11:17:59,329 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 11:17:59,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 11:17:59,332 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 11:17:59,332 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 11:17:59,333 INFO L432 ainManager$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 [2022-07-21 11:17:59,381 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33672d556/91acd36eeba940dbaf67bd9b9da86b22/FLAGdb3155911 [2022-07-21 11:18:00,057 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 11:18:00,058 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 [2022-07-21 11:18:00,104 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33672d556/91acd36eeba940dbaf67bd9b9da86b22/FLAGdb3155911 [2022-07-21 11:18:00,366 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33672d556/91acd36eeba940dbaf67bd9b9da86b22 [2022-07-21 11:18:00,368 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 11:18:00,369 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 11:18:00,371 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 11:18:00,371 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 11:18:00,373 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 11:18:00,374 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:18:00" (1/1) ... [2022-07-21 11:18:00,374 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@287a254c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:18:00, skipping insertion in model container [2022-07-21 11:18:00,374 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:18:00" (1/1) ... [2022-07-21 11:18:00,379 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 11:18:00,497 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 11:18:00,906 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5693] [2022-07-21 11:18:00,910 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] [2022-07-21 11:18:01,462 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] [2022-07-21 11:18:02,507 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-21 11:18:02,529 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:18:02,581 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-21 11:18:02,666 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 11:18:02,731 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5693] [2022-07-21 11:18:02,731 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] [2022-07-21 11:18:02,741 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] [2022-07-21 11:18:02,968 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-21 11:18:02,975 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:18:02,999 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 11:18:03,071 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5693] [2022-07-21 11:18:03,071 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] [2022-07-21 11:18:03,100 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] [2022-07-21 11:18:03,384 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-21 11:18:03,389 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:18:03,507 INFO L208 MainTranslator]: Completed translation [2022-07-21 11:18:03,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:18:03 WrapperNode [2022-07-21 11:18:03,508 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 11:18:03,509 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 11:18:03,509 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 11:18:03,509 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 11:18:03,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:18:03" (1/1) ... [2022-07-21 11:18:03,603 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:18:03" (1/1) ... [2022-07-21 11:18:03,748 INFO L137 Inliner]: procedures = 468, calls = 2280, calls flagged for inlining = 217, calls inlined = 215, statements flattened = 7021 [2022-07-21 11:18:03,749 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 11:18:03,750 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 11:18:03,750 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 11:18:03,751 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 11:18:03,757 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:18:03" (1/1) ... [2022-07-21 11:18:03,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:18:03" (1/1) ... [2022-07-21 11:18:03,800 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:18:03" (1/1) ... [2022-07-21 11:18:03,801 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:18:03" (1/1) ... [2022-07-21 11:18:03,911 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:18:03" (1/1) ... [2022-07-21 11:18:03,934 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:18:03" (1/1) ... [2022-07-21 11:18:04,041 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:18:03" (1/1) ... [2022-07-21 11:18:04,073 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 11:18:04,074 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 11:18:04,074 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 11:18:04,075 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 11:18:04,075 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:18:03" (1/1) ... [2022-07-21 11:18:04,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:18:04,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 11:18:04,097 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 11:18:04,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 11:18:04,127 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-07-21 11:18:04,127 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-07-21 11:18:04,127 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-07-21 11:18:04,127 INFO L130 BoogieDeclarations]: Found specification of procedure unix_gc [2022-07-21 11:18:04,128 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_gc [2022-07-21 11:18:04,128 INFO L130 BoogieDeclarations]: Found specification of procedure unix_sysctl_unregister [2022-07-21 11:18:04,128 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_sysctl_unregister [2022-07-21 11:18:04,128 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-07-21 11:18:04,128 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-07-21 11:18:04,128 INFO L130 BoogieDeclarations]: Found specification of procedure seq_putc [2022-07-21 11:18:04,128 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_putc [2022-07-21 11:18:04,128 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-07-21 11:18:04,129 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-07-21 11:18:04,129 INFO L130 BoogieDeclarations]: Found specification of procedure sock_sndtimeo [2022-07-21 11:18:04,129 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_sndtimeo [2022-07-21 11:18:04,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-21 11:18:04,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-21 11:18:04,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 11:18:04,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 11:18:04,129 INFO L130 BoogieDeclarations]: Found specification of procedure unix_release_addr [2022-07-21 11:18:04,130 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_release_addr [2022-07-21 11:18:04,130 INFO L130 BoogieDeclarations]: Found specification of procedure unix_state_double_lock [2022-07-21 11:18:04,130 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_state_double_lock [2022-07-21 11:18:04,130 INFO L130 BoogieDeclarations]: Found specification of procedure unix_set_peek_off [2022-07-21 11:18:04,130 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_set_peek_off [2022-07-21 11:18:04,130 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-07-21 11:18:04,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-07-21 11:18:04,130 INFO L130 BoogieDeclarations]: Found specification of procedure unix_dgram_disconnected [2022-07-21 11:18:04,131 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_dgram_disconnected [2022-07-21 11:18:04,131 INFO L130 BoogieDeclarations]: Found specification of procedure __clear_bit [2022-07-21 11:18:04,131 INFO L138 BoogieDeclarations]: Found implementation of procedure __clear_bit [2022-07-21 11:18:04,131 INFO L130 BoogieDeclarations]: Found specification of procedure scm_destroy [2022-07-21 11:18:04,131 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_destroy [2022-07-21 11:18:04,131 INFO L130 BoogieDeclarations]: Found specification of procedure put_cmsg [2022-07-21 11:18:04,131 INFO L138 BoogieDeclarations]: Found implementation of procedure put_cmsg [2022-07-21 11:18:04,132 INFO L130 BoogieDeclarations]: Found specification of procedure unix_create1 [2022-07-21 11:18:04,132 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_create1 [2022-07-21 11:18:04,132 INFO L130 BoogieDeclarations]: Found specification of procedure unix_dgram_poll [2022-07-21 11:18:04,132 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_dgram_poll [2022-07-21 11:18:04,133 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-21 11:18:04,133 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-21 11:18:04,133 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2022-07-21 11:18:04,133 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2022-07-21 11:18:04,134 INFO L130 BoogieDeclarations]: Found specification of procedure unix_recvq_full [2022-07-21 11:18:04,134 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_recvq_full [2022-07-21 11:18:04,134 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-07-21 11:18:04,134 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-07-21 11:18:04,134 INFO L130 BoogieDeclarations]: Found specification of procedure unix_shutdown [2022-07-21 11:18:04,134 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_shutdown [2022-07-21 11:18:04,134 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-07-21 11:18:04,134 INFO L130 BoogieDeclarations]: Found specification of procedure scan_children [2022-07-21 11:18:04,135 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_children [2022-07-21 11:18:04,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-21 11:18:04,135 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-07-21 11:18:04,135 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-07-21 11:18:04,135 INFO L130 BoogieDeclarations]: Found specification of procedure sk_peek_offset_fwd [2022-07-21 11:18:04,135 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_peek_offset_fwd [2022-07-21 11:18:04,135 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-07-21 11:18:04,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 11:18:04,136 INFO L130 BoogieDeclarations]: Found specification of procedure unix_find_other [2022-07-21 11:18:04,136 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_find_other [2022-07-21 11:18:04,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-21 11:18:04,136 INFO L130 BoogieDeclarations]: Found specification of procedure unix_scm_to_skb [2022-07-21 11:18:04,136 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_scm_to_skb [2022-07-21 11:18:04,137 INFO L130 BoogieDeclarations]: Found specification of procedure scm_send [2022-07-21 11:18:04,137 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_send [2022-07-21 11:18:04,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-21 11:18:04,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-21 11:18:04,137 INFO L130 BoogieDeclarations]: Found specification of procedure sk_set_socket [2022-07-21 11:18:04,137 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_set_socket [2022-07-21 11:18:04,137 INFO L130 BoogieDeclarations]: Found specification of procedure unix_autobind [2022-07-21 11:18:04,137 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_autobind [2022-07-21 11:18:04,138 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-21 11:18:04,138 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-21 11:18:04,138 INFO L130 BoogieDeclarations]: Found specification of procedure unix_release_sock [2022-07-21 11:18:04,138 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_release_sock [2022-07-21 11:18:04,138 INFO L130 BoogieDeclarations]: Found specification of procedure sock_put [2022-07-21 11:18:04,138 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_put [2022-07-21 11:18:04,138 INFO L130 BoogieDeclarations]: Found specification of procedure unix_mkname [2022-07-21 11:18:04,139 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_mkname [2022-07-21 11:18:04,139 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-21 11:18:04,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-21 11:18:04,140 INFO L130 BoogieDeclarations]: Found specification of procedure sock_intr_errno [2022-07-21 11:18:04,140 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_intr_errno [2022-07-21 11:18:04,140 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_inc [2022-07-21 11:18:04,140 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_inc [2022-07-21 11:18:04,140 INFO L130 BoogieDeclarations]: Found specification of procedure unix_may_send [2022-07-21 11:18:04,140 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_may_send [2022-07-21 11:18:04,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-21 11:18:04,141 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-21 11:18:04,141 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2022-07-21 11:18:04,141 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2022-07-21 11:18:04,141 INFO L130 BoogieDeclarations]: Found specification of procedure __validate_creds [2022-07-21 11:18:04,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __validate_creds [2022-07-21 11:18:04,141 INFO L130 BoogieDeclarations]: Found specification of procedure unix_listen [2022-07-21 11:18:04,141 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_listen [2022-07-21 11:18:04,142 INFO L130 BoogieDeclarations]: Found specification of procedure sk_sleep [2022-07-21 11:18:04,142 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_sleep [2022-07-21 11:18:04,142 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-07-21 11:18:04,142 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-07-21 11:18:04,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-21 11:18:04,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-21 11:18:04,143 INFO L130 BoogieDeclarations]: Found specification of procedure seq_file_net [2022-07-21 11:18:04,144 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_file_net [2022-07-21 11:18:04,144 INFO L130 BoogieDeclarations]: Found specification of procedure kiocb_to_siocb [2022-07-21 11:18:04,145 INFO L138 BoogieDeclarations]: Found implementation of procedure kiocb_to_siocb [2022-07-21 11:18:04,145 INFO L130 BoogieDeclarations]: Found specification of procedure init_peercred [2022-07-21 11:18:04,145 INFO L138 BoogieDeclarations]: Found implementation of procedure init_peercred [2022-07-21 11:18:04,145 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-07-21 11:18:04,146 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-07-21 11:18:04,146 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2022-07-21 11:18:04,146 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2022-07-21 11:18:04,150 INFO L130 BoogieDeclarations]: Found specification of procedure unix_dgram_sendmsg [2022-07-21 11:18:04,150 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_dgram_sendmsg [2022-07-21 11:18:04,150 INFO L130 BoogieDeclarations]: Found specification of procedure unix_stream_connect [2022-07-21 11:18:04,150 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_stream_connect [2022-07-21 11:18:04,150 INFO L130 BoogieDeclarations]: Found specification of procedure get_cred [2022-07-21 11:18:04,150 INFO L138 BoogieDeclarations]: Found implementation of procedure get_cred [2022-07-21 11:18:04,151 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_dec [2022-07-21 11:18:04,151 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_dec [2022-07-21 11:18:04,151 INFO L130 BoogieDeclarations]: Found specification of procedure unix_skb_len [2022-07-21 11:18:04,151 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_skb_len [2022-07-21 11:18:04,151 INFO L130 BoogieDeclarations]: Found specification of procedure sock_flag [2022-07-21 11:18:04,151 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_flag [2022-07-21 11:18:04,151 INFO L130 BoogieDeclarations]: Found specification of procedure unix_state_double_unlock [2022-07-21 11:18:04,151 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_state_double_unlock [2022-07-21 11:18:04,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 11:18:04,151 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-07-21 11:18:04,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-07-21 11:18:04,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 11:18:04,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 11:18:04,152 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-21 11:18:04,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-21 11:18:04,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-21 11:18:04,152 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 11:18:04,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 11:18:04,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-21 11:18:04,152 INFO L130 BoogieDeclarations]: Found specification of procedure unix_net_exit [2022-07-21 11:18:04,153 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_net_exit [2022-07-21 11:18:04,153 INFO L130 BoogieDeclarations]: Found specification of procedure unix_detach_fds [2022-07-21 11:18:04,153 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_detach_fds [2022-07-21 11:18:04,153 INFO L130 BoogieDeclarations]: Found specification of procedure touch_atime [2022-07-21 11:18:04,153 INFO L138 BoogieDeclarations]: Found implementation of procedure touch_atime [2022-07-21 11:18:04,153 INFO L130 BoogieDeclarations]: Found specification of procedure unix_seq_stop [2022-07-21 11:18:04,153 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_seq_stop [2022-07-21 11:18:04,153 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-07-21 11:18:04,153 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-07-21 11:18:04,153 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-07-21 11:18:04,153 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-07-21 11:18:04,154 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_datagram_iovec [2022-07-21 11:18:04,154 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_datagram_iovec [2022-07-21 11:18:04,154 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-21 11:18:04,154 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-21 11:18:04,154 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-21 11:18:04,154 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-21 11:18:04,154 INFO L130 BoogieDeclarations]: Found specification of procedure unix_accept [2022-07-21 11:18:04,154 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_accept [2022-07-21 11:18:04,154 INFO L130 BoogieDeclarations]: Found specification of procedure unix_dgram_recvmsg [2022-07-21 11:18:04,154 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_dgram_recvmsg [2022-07-21 11:18:04,155 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-21 11:18:04,155 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-21 11:18:04,155 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-07-21 11:18:04,155 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-07-21 11:18:04,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-21 11:18:04,155 INFO L130 BoogieDeclarations]: Found specification of procedure unix_wait_for_peer [2022-07-21 11:18:04,155 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_wait_for_peer [2022-07-21 11:18:04,155 INFO L130 BoogieDeclarations]: Found specification of procedure unix_hash_fold [2022-07-21 11:18:04,155 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_hash_fold [2022-07-21 11:18:04,155 INFO L130 BoogieDeclarations]: Found specification of procedure scan_inflight [2022-07-21 11:18:04,156 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_inflight [2022-07-21 11:18:04,156 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-07-21 11:18:04,156 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-07-21 11:18:04,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 11:18:04,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 11:18:04,156 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-21 11:18:04,156 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-21 11:18:04,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-21 11:18:04,156 INFO L130 BoogieDeclarations]: Found specification of procedure __kuid_val [2022-07-21 11:18:04,156 INFO L138 BoogieDeclarations]: Found implementation of procedure __kuid_val [2022-07-21 11:18:04,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-21 11:18:04,157 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_bh [2022-07-21 11:18:04,157 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_bh [2022-07-21 11:18:04,157 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_bh [2022-07-21 11:18:04,157 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_bh [2022-07-21 11:18:04,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-21 11:18:04,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 11:18:04,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-21 11:18:04,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 11:18:04,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 11:18:04,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 11:18:04,158 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2022-07-21 11:18:04,158 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2022-07-21 11:18:04,158 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-21 11:18:04,158 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-21 11:18:04,158 INFO L130 BoogieDeclarations]: Found specification of procedure unix_peer_get [2022-07-21 11:18:04,158 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_peer_get [2022-07-21 11:18:04,158 INFO L130 BoogieDeclarations]: Found specification of procedure unix_bind [2022-07-21 11:18:04,158 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_bind [2022-07-21 11:18:04,158 INFO L130 BoogieDeclarations]: Found specification of procedure sock_hold [2022-07-21 11:18:04,158 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_hold [2022-07-21 11:18:04,159 INFO L130 BoogieDeclarations]: Found specification of procedure unix_copy_addr [2022-07-21 11:18:04,159 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_copy_addr [2022-07-21 11:18:04,159 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-07-21 11:18:04,159 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-07-21 11:18:04,159 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-07-21 11:18:04,159 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-07-21 11:18:04,159 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-21 11:18:04,159 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-21 11:18:04,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-21 11:18:04,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-21 11:18:04,159 INFO L130 BoogieDeclarations]: Found specification of procedure sock_poll_wait [2022-07-21 11:18:04,160 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_poll_wait [2022-07-21 11:18:04,160 INFO L130 BoogieDeclarations]: Found specification of procedure __unix_find_socket_byname [2022-07-21 11:18:04,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __unix_find_socket_byname [2022-07-21 11:18:04,160 INFO L130 BoogieDeclarations]: Found specification of procedure sock_net [2022-07-21 11:18:04,160 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_net [2022-07-21 11:18:04,160 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-21 11:18:04,160 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-21 11:18:04,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-21 11:18:04,160 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-21 11:18:04,160 INFO L130 BoogieDeclarations]: Found specification of procedure scm_recv [2022-07-21 11:18:04,161 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_recv [2022-07-21 11:18:04,161 INFO L130 BoogieDeclarations]: Found specification of procedure unix_release [2022-07-21 11:18:04,161 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_release [2022-07-21 11:18:04,161 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-21 11:18:04,161 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-21 11:18:04,161 INFO L130 BoogieDeclarations]: Found specification of procedure path_put [2022-07-21 11:18:04,161 INFO L138 BoogieDeclarations]: Found implementation of procedure path_put [2022-07-21 11:18:04,161 INFO L130 BoogieDeclarations]: Found specification of procedure sock_no_getsockopt [2022-07-21 11:18:04,162 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_no_getsockopt [2022-07-21 11:18:04,164 INFO L130 BoogieDeclarations]: Found specification of procedure sock_alloc_send_pskb [2022-07-21 11:18:04,164 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_alloc_send_pskb [2022-07-21 11:18:04,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 11:18:04,164 INFO L130 BoogieDeclarations]: Found specification of procedure sk_peek_offset [2022-07-21 11:18:04,164 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_peek_offset [2022-07-21 11:18:04,165 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-21 11:18:04,165 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-21 11:18:04,165 INFO L130 BoogieDeclarations]: Found specification of procedure unix_get_socket [2022-07-21 11:18:04,165 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_get_socket [2022-07-21 11:18:04,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 11:18:04,166 INFO L130 BoogieDeclarations]: Found specification of procedure sk_unhashed [2022-07-21 11:18:04,166 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_unhashed [2022-07-21 11:18:04,166 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2022-07-21 11:18:04,166 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2022-07-21 11:18:04,166 INFO L130 BoogieDeclarations]: Found specification of procedure get_pid [2022-07-21 11:18:04,166 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pid [2022-07-21 11:18:04,166 INFO L130 BoogieDeclarations]: Found specification of procedure put_pid [2022-07-21 11:18:04,167 INFO L138 BoogieDeclarations]: Found implementation of procedure put_pid [2022-07-21 11:18:04,167 INFO L130 BoogieDeclarations]: Found specification of procedure scm_set_cred [2022-07-21 11:18:04,167 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_set_cred [2022-07-21 11:18:04,167 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2022-07-21 11:18:04,167 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2022-07-21 11:18:04,167 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-07-21 11:18:04,167 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-07-21 11:18:04,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-21 11:18:04,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-21 11:18:04,168 INFO L130 BoogieDeclarations]: Found specification of procedure local_bh_disable [2022-07-21 11:18:04,168 INFO L138 BoogieDeclarations]: Found implementation of procedure local_bh_disable [2022-07-21 11:18:04,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-21 11:18:04,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-21 11:18:04,168 INFO L130 BoogieDeclarations]: Found specification of procedure sk_wake_async [2022-07-21 11:18:04,168 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_wake_async [2022-07-21 11:18:04,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 11:18:04,168 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-07-21 11:18:04,168 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-07-21 11:18:04,169 INFO L130 BoogieDeclarations]: Found specification of procedure maybe_add_creds [2022-07-21 11:18:04,169 INFO L138 BoogieDeclarations]: Found implementation of procedure maybe_add_creds [2022-07-21 11:18:04,169 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-07-21 11:18:04,169 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-07-21 11:18:04,169 INFO L130 BoogieDeclarations]: Found specification of procedure skb_free_datagram [2022-07-21 11:18:04,169 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_free_datagram [2022-07-21 11:18:04,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-21 11:18:04,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-21 11:18:04,169 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_datagram_from_iovec [2022-07-21 11:18:04,169 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_datagram_from_iovec [2022-07-21 11:18:04,169 INFO L130 BoogieDeclarations]: Found specification of procedure sock_prot_inuse_add [2022-07-21 11:18:04,170 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_prot_inuse_add [2022-07-21 11:18:04,170 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-07-21 11:18:04,170 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-07-21 11:18:04,170 INFO L130 BoogieDeclarations]: Found specification of procedure sk_next [2022-07-21 11:18:04,170 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_next [2022-07-21 11:18:04,170 INFO L130 BoogieDeclarations]: Found specification of procedure __unix_insert_socket [2022-07-21 11:18:04,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __unix_insert_socket [2022-07-21 11:18:04,170 INFO L130 BoogieDeclarations]: Found specification of procedure sock_error [2022-07-21 11:18:04,170 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_error [2022-07-21 11:18:04,170 INFO L130 BoogieDeclarations]: Found specification of procedure __unix_remove_socket [2022-07-21 11:18:04,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __unix_remove_socket [2022-07-21 11:18:04,171 INFO L130 BoogieDeclarations]: Found specification of procedure csum_partial [2022-07-21 11:18:04,171 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_partial [2022-07-21 11:18:04,171 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-21 11:18:04,171 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-21 11:18:04,171 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2022-07-21 11:18:04,171 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2022-07-21 11:18:04,171 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-21 11:18:04,171 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-21 11:18:04,171 INFO L130 BoogieDeclarations]: Found specification of procedure scm_fp_dup [2022-07-21 11:18:04,171 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_fp_dup [2022-07-21 11:18:04,172 INFO L130 BoogieDeclarations]: Found specification of procedure security_unix_may_send [2022-07-21 11:18:04,172 INFO L138 BoogieDeclarations]: Found implementation of procedure security_unix_may_send [2022-07-21 11:18:04,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-21 11:18:04,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-21 11:18:04,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-21 11:18:04,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-21 11:18:04,172 INFO L130 BoogieDeclarations]: Found specification of procedure sock_no_mmap [2022-07-21 11:18:04,172 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_no_mmap [2022-07-21 11:18:04,172 INFO L130 BoogieDeclarations]: Found specification of procedure scm_destroy_cred [2022-07-21 11:18:04,172 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_destroy_cred [2022-07-21 11:18:04,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 11:18:04,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 11:18:04,173 INFO L130 BoogieDeclarations]: Found specification of procedure put_cred [2022-07-21 11:18:04,173 INFO L138 BoogieDeclarations]: Found implementation of procedure put_cred [2022-07-21 11:18:04,173 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up_sync_key [2022-07-21 11:18:04,173 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up_sync_key [2022-07-21 11:18:04,173 INFO L130 BoogieDeclarations]: Found specification of procedure __kgid_val [2022-07-21 11:18:04,173 INFO L138 BoogieDeclarations]: Found implementation of procedure __kgid_val [2022-07-21 11:18:04,173 INFO L130 BoogieDeclarations]: Found specification of procedure task_tgid [2022-07-21 11:18:04,173 INFO L138 BoogieDeclarations]: Found implementation of procedure task_tgid [2022-07-21 11:18:04,173 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-07-21 11:18:04,173 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-07-21 11:18:04,174 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-07-21 11:18:04,174 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-07-21 11:18:04,174 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_unix_gc [2022-07-21 11:18:04,174 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_unix_gc [2022-07-21 11:18:04,174 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit [2022-07-21 11:18:04,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit [2022-07-21 11:18:04,174 INFO L130 BoogieDeclarations]: Found specification of procedure unix_next_socket [2022-07-21 11:18:04,174 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_next_socket [2022-07-21 11:18:04,174 INFO L130 BoogieDeclarations]: Found specification of procedure sock_no_setsockopt [2022-07-21 11:18:04,174 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_no_setsockopt [2022-07-21 11:18:04,174 INFO L130 BoogieDeclarations]: Found specification of procedure sk_peek_offset_bwd [2022-07-21 11:18:04,175 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_peek_offset_bwd [2022-07-21 11:18:04,175 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-21 11:18:04,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-21 11:18:04,175 INFO L130 BoogieDeclarations]: Found specification of procedure unix_writable [2022-07-21 11:18:04,175 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_writable [2022-07-21 11:18:04,175 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_read [2022-07-21 11:18:04,175 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_read [2022-07-21 11:18:04,175 INFO L130 BoogieDeclarations]: Found specification of procedure unix_socketpair [2022-07-21 11:18:04,175 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_socketpair [2022-07-21 11:18:04,175 INFO L130 BoogieDeclarations]: Found specification of procedure sock_no_sendpage [2022-07-21 11:18:04,176 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_no_sendpage [2022-07-21 11:18:04,176 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-21 11:18:04,176 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-21 11:18:04,176 INFO L130 BoogieDeclarations]: Found specification of procedure unix_getname [2022-07-21 11:18:04,176 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_getname [2022-07-21 11:18:04,176 INFO L130 BoogieDeclarations]: Found specification of procedure unix_ioctl [2022-07-21 11:18:04,176 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_ioctl [2022-07-21 11:18:04,176 INFO L130 BoogieDeclarations]: Found specification of procedure local_bh_enable [2022-07-21 11:18:04,176 INFO L138 BoogieDeclarations]: Found implementation of procedure local_bh_enable [2022-07-21 11:18:04,971 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 11:18:04,974 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 11:18:05,246 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 11:18:24,123 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 11:18:24,139 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 11:18:24,139 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 11:18:24,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:18:24 BoogieIcfgContainer [2022-07-21 11:18:24,142 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 11:18:24,143 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 11:18:24,144 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 11:18:24,145 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 11:18:24,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:18:00" (1/3) ... [2022-07-21 11:18:24,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69b91601 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:18:24, skipping insertion in model container [2022-07-21 11:18:24,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:18:03" (2/3) ... [2022-07-21 11:18:24,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69b91601 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:18:24, skipping insertion in model container [2022-07-21 11:18:24,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:18:24" (3/3) ... [2022-07-21 11:18:24,147 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 [2022-07-21 11:18:24,159 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 11:18:24,159 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 11:18:24,229 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 11:18:24,233 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@26f9bea2, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@cb7e973 [2022-07-21 11:18:24,234 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 11:18:24,243 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) [2022-07-21 11:18:24,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-07-21 11:18:24,268 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:18:24,269 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] [2022-07-21 11:18:24,270 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:18:24,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:18:24,273 INFO L85 PathProgramCache]: Analyzing trace with hash 2586623, now seen corresponding path program 1 times [2022-07-21 11:18:24,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:18:24,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1906613367] [2022-07-21 11:18:24,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:18:24,288 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:18:24,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:18:24,313 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:18:24,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-21 11:18:26,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:18:26,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 1756 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:18:26,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:18:26,379 INFO L134 CoverageAnalysis]: Checked inductivity of 1516 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1516 trivial. 0 not checked. [2022-07-21 11:18:26,379 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:18:26,379 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:18:26,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1906613367] [2022-07-21 11:18:26,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1906613367] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:18:26,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:18:26,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:18:26,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103247573] [2022-07-21 11:18:26,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:18:26,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:18:26,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:18:26,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:18:26,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:18:26,410 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) [2022-07-21 11:18:26,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:18:26,933 INFO L93 Difference]: Finished difference Result 8008 states and 11636 transitions. [2022-07-21 11:18:26,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:18:26,935 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 [2022-07-21 11:18:26,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:18:26,984 INFO L225 Difference]: With dead ends: 8008 [2022-07-21 11:18:26,984 INFO L226 Difference]: Without dead ends: 5221 [2022-07-21 11:18:27,007 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 [2022-07-21 11:18:27,012 INFO L413 NwaCegarLoop]: 4542 mSDtfsCounter, 3688 mSDsluCounter, 3791 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-07-21 11:18:27,014 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] [2022-07-21 11:18:27,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5221 states. [2022-07-21 11:18:27,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5221 to 5216. [2022-07-21 11:18:27,232 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) [2022-07-21 11:18:27,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5216 states to 5216 states and 7450 transitions. [2022-07-21 11:18:27,269 INFO L78 Accepts]: Start accepts. Automaton has 5216 states and 7450 transitions. Word has length 213 [2022-07-21 11:18:27,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:18:27,271 INFO L495 AbstractCegarLoop]: Abstraction has 5216 states and 7450 transitions. [2022-07-21 11:18:27,271 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) [2022-07-21 11:18:27,272 INFO L276 IsEmpty]: Start isEmpty. Operand 5216 states and 7450 transitions. [2022-07-21 11:18:27,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-07-21 11:18:27,279 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:18:27,280 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] [2022-07-21 11:18:27,325 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-21 11:18:27,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:18:27,495 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:18:27,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:18:27,496 INFO L85 PathProgramCache]: Analyzing trace with hash 517155252, now seen corresponding path program 1 times [2022-07-21 11:18:27,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:18:27,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [341287983] [2022-07-21 11:18:27,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:18:27,497 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:18:27,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:18:27,500 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:18:27,501 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-21 11:18:29,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:18:29,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 1758 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:18:29,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:18:29,435 INFO L134 CoverageAnalysis]: Checked inductivity of 1516 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1516 trivial. 0 not checked. [2022-07-21 11:18:29,436 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:18:29,436 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:18:29,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [341287983] [2022-07-21 11:18:29,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [341287983] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:18:29,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:18:29,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:18:29,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441960113] [2022-07-21 11:18:29,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:18:29,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:18:29,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:18:29,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:18:29,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:18:29,439 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) [2022-07-21 11:18:29,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:18:29,976 INFO L93 Difference]: Finished difference Result 14791 states and 21009 transitions. [2022-07-21 11:18:29,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:18:29,976 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 [2022-07-21 11:18:29,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:18:30,034 INFO L225 Difference]: With dead ends: 14791 [2022-07-21 11:18:30,034 INFO L226 Difference]: Without dead ends: 9634 [2022-07-21 11:18:30,062 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 [2022-07-21 11:18:30,063 INFO L413 NwaCegarLoop]: 4605 mSDtfsCounter, 3287 mSDsluCounter, 3748 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-07-21 11:18:30,064 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] [2022-07-21 11:18:30,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9634 states. [2022-07-21 11:18:30,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9634 to 9627. [2022-07-21 11:18:30,429 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) [2022-07-21 11:18:30,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9627 states to 9627 states and 13638 transitions. [2022-07-21 11:18:30,497 INFO L78 Accepts]: Start accepts. Automaton has 9627 states and 13638 transitions. Word has length 214 [2022-07-21 11:18:30,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:18:30,498 INFO L495 AbstractCegarLoop]: Abstraction has 9627 states and 13638 transitions. [2022-07-21 11:18:30,499 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) [2022-07-21 11:18:30,499 INFO L276 IsEmpty]: Start isEmpty. Operand 9627 states and 13638 transitions. [2022-07-21 11:18:30,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-07-21 11:18:30,503 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:18:30,503 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] [2022-07-21 11:18:30,549 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-21 11:18:30,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:18:30,727 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:18:30,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:18:30,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1347570925, now seen corresponding path program 1 times [2022-07-21 11:18:30,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:18:30,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [733127476] [2022-07-21 11:18:30,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:18:30,729 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:18:30,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:18:30,731 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:18:30,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-21 11:18:32,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:18:32,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 1770 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:18:32,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:18:32,632 INFO L134 CoverageAnalysis]: Checked inductivity of 1516 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1516 trivial. 0 not checked. [2022-07-21 11:18:32,633 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:18:32,633 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:18:32,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [733127476] [2022-07-21 11:18:32,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [733127476] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:18:32,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:18:32,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:18:32,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538730491] [2022-07-21 11:18:32,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:18:32,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:18:32,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:18:32,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:18:32,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:18:32,634 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) [2022-07-21 11:18:33,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:18:33,244 INFO L93 Difference]: Finished difference Result 26193 states and 36968 transitions. [2022-07-21 11:18:33,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:18:33,245 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 [2022-07-21 11:18:33,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:18:33,355 INFO L225 Difference]: With dead ends: 26193 [2022-07-21 11:18:33,356 INFO L226 Difference]: Without dead ends: 16625 [2022-07-21 11:18:33,403 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 [2022-07-21 11:18:33,406 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 [2022-07-21 11:18:33,407 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] [2022-07-21 11:18:33,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16625 states. [2022-07-21 11:18:33,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16625 to 16622. [2022-07-21 11:18:33,982 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) [2022-07-21 11:18:34,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16622 states to 16622 states and 23411 transitions. [2022-07-21 11:18:34,069 INFO L78 Accepts]: Start accepts. Automaton has 16622 states and 23411 transitions. Word has length 220 [2022-07-21 11:18:34,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:18:34,070 INFO L495 AbstractCegarLoop]: Abstraction has 16622 states and 23411 transitions. [2022-07-21 11:18:34,070 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) [2022-07-21 11:18:34,071 INFO L276 IsEmpty]: Start isEmpty. Operand 16622 states and 23411 transitions. [2022-07-21 11:18:34,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2022-07-21 11:18:34,088 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:18:34,089 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] [2022-07-21 11:18:34,140 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-21 11:18:34,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:18:34,304 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:18:34,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:18:34,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1196821462, now seen corresponding path program 1 times [2022-07-21 11:18:34,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:18:34,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [562226078] [2022-07-21 11:18:34,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:18:34,306 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:18:34,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:18:34,307 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:18:34,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-21 11:18:36,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:18:36,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 2220 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 11:18:36,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:18:36,451 INFO L134 CoverageAnalysis]: Checked inductivity of 4908 backedges. 2468 proven. 0 refuted. 0 times theorem prover too weak. 2440 trivial. 0 not checked. [2022-07-21 11:18:36,455 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:18:36,455 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:18:36,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [562226078] [2022-07-21 11:18:36,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [562226078] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:18:36,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:18:36,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 11:18:36,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253337526] [2022-07-21 11:18:36,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:18:36,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 11:18:36,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:18:36,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 11:18:36,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 11:18:36,457 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) [2022-07-21 11:18:38,556 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 [] [2022-07-21 11:18:39,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:18:39,120 INFO L93 Difference]: Finished difference Result 33209 states and 46764 transitions. [2022-07-21 11:18:39,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 11:18:39,121 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 [2022-07-21 11:18:39,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:18:39,195 INFO L225 Difference]: With dead ends: 33209 [2022-07-21 11:18:39,195 INFO L226 Difference]: Without dead ends: 16615 [2022-07-21 11:18:39,248 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 [2022-07-21 11:18:39,249 INFO L413 NwaCegarLoop]: 3886 mSDtfsCounter, 6 mSDsluCounter, 11653 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s 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, 2.2s IncrementalHoareTripleChecker+Time [2022-07-21 11:18:39,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 15539 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-07-21 11:18:39,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16615 states. [2022-07-21 11:18:39,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16615 to 16587. [2022-07-21 11:18:39,636 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) [2022-07-21 11:18:39,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16587 states to 16587 states and 23360 transitions. [2022-07-21 11:18:39,711 INFO L78 Accepts]: Start accepts. Automaton has 16587 states and 23360 transitions. Word has length 370 [2022-07-21 11:18:39,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:18:39,711 INFO L495 AbstractCegarLoop]: Abstraction has 16587 states and 23360 transitions. [2022-07-21 11:18:39,712 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) [2022-07-21 11:18:39,712 INFO L276 IsEmpty]: Start isEmpty. Operand 16587 states and 23360 transitions. [2022-07-21 11:18:39,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2022-07-21 11:18:39,727 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:18:39,728 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] [2022-07-21 11:18:39,781 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-21 11:18:39,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:18:39,952 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:18:39,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:18:39,952 INFO L85 PathProgramCache]: Analyzing trace with hash 41778221, now seen corresponding path program 1 times [2022-07-21 11:18:39,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:18:39,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1029458821] [2022-07-21 11:18:39,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:18:39,954 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:18:39,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:18:39,955 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:18:39,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-21 11:18:42,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:18:42,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 2227 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-21 11:18:42,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:18:43,414 INFO L134 CoverageAnalysis]: Checked inductivity of 4906 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4906 trivial. 0 not checked. [2022-07-21 11:18:43,414 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:18:43,415 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:18:43,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1029458821] [2022-07-21 11:18:43,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1029458821] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:18:43,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:18:43,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 11:18:43,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063926336] [2022-07-21 11:18:43,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:18:43,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:18:43,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:18:43,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:18:43,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:18:43,416 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) [2022-07-21 11:18:43,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:18:43,748 INFO L93 Difference]: Finished difference Result 27677 states and 38870 transitions. [2022-07-21 11:18:43,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:18:43,748 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 [2022-07-21 11:18:43,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:18:43,886 INFO L225 Difference]: With dead ends: 27677 [2022-07-21 11:18:43,887 INFO L226 Difference]: Without dead ends: 27674 [2022-07-21 11:18:43,909 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 [2022-07-21 11:18:43,910 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 [2022-07-21 11:18:43,910 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] [2022-07-21 11:18:43,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27674 states. [2022-07-21 11:18:44,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27674 to 27192. [2022-07-21 11:18:44,720 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) [2022-07-21 11:18:44,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27192 states to 27192 states and 38059 transitions. [2022-07-21 11:18:44,836 INFO L78 Accepts]: Start accepts. Automaton has 27192 states and 38059 transitions. Word has length 371 [2022-07-21 11:18:44,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:18:44,839 INFO L495 AbstractCegarLoop]: Abstraction has 27192 states and 38059 transitions. [2022-07-21 11:18:44,839 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) [2022-07-21 11:18:44,840 INFO L276 IsEmpty]: Start isEmpty. Operand 27192 states and 38059 transitions. [2022-07-21 11:18:44,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2022-07-21 11:18:44,887 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:18:44,887 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] [2022-07-21 11:18:44,942 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-21 11:18:45,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:18:45,112 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:18:45,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:18:45,112 INFO L85 PathProgramCache]: Analyzing trace with hash -810105328, now seen corresponding path program 1 times [2022-07-21 11:18:45,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:18:45,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1681760609] [2022-07-21 11:18:45,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:18:45,114 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:18:45,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:18:45,115 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:18:45,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-21 11:18:47,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:18:47,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 2289 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-21 11:18:47,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:18:47,301 INFO L134 CoverageAnalysis]: Checked inductivity of 4915 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4911 trivial. 0 not checked. [2022-07-21 11:18:47,301 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:18:47,301 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:18:47,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1681760609] [2022-07-21 11:18:47,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1681760609] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:18:47,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:18:47,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 11:18:47,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906733450] [2022-07-21 11:18:47,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:18:47,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 11:18:47,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:18:47,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 11:18:47,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 11:18:47,304 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) [2022-07-21 11:18:49,405 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 [] [2022-07-21 11:18:52,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:18:52,005 INFO L93 Difference]: Finished difference Result 81456 states and 113995 transitions. [2022-07-21 11:18:52,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 11:18:52,006 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 [2022-07-21 11:18:52,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:18:52,315 INFO L225 Difference]: With dead ends: 81456 [2022-07-21 11:18:52,315 INFO L226 Difference]: Without dead ends: 54332 [2022-07-21 11:18:52,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 395 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 11:18:52,424 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, 3.4s IncrementalHoareTripleChecker+Time [2022-07-21 11:18:52,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4408 Valid, 17882 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [365 Valid, 200 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-07-21 11:18:52,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54332 states. [2022-07-21 11:18:53,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54332 to 54305. [2022-07-21 11:18:53,907 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) [2022-07-21 11:18:54,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54305 states to 54305 states and 75993 transitions. [2022-07-21 11:18:54,130 INFO L78 Accepts]: Start accepts. Automaton has 54305 states and 75993 transitions. Word has length 397 [2022-07-21 11:18:54,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:18:54,131 INFO L495 AbstractCegarLoop]: Abstraction has 54305 states and 75993 transitions. [2022-07-21 11:18:54,131 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) [2022-07-21 11:18:54,131 INFO L276 IsEmpty]: Start isEmpty. Operand 54305 states and 75993 transitions. [2022-07-21 11:18:54,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2022-07-21 11:18:54,195 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:18:54,195 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] [2022-07-21 11:18:54,245 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-21 11:18:54,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:18:54,412 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:18:54,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:18:54,413 INFO L85 PathProgramCache]: Analyzing trace with hash -955879295, now seen corresponding path program 1 times [2022-07-21 11:18:54,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:18:54,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [454344148] [2022-07-21 11:18:54,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:18:54,414 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:18:54,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:18:54,416 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:18:54,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-21 11:18:56,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:18:56,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 2289 conjuncts, 26 conjunts are in the unsatisfiable core [2022-07-21 11:18:56,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:19:00,763 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 [2022-07-21 11:19:00,930 INFO L134 CoverageAnalysis]: Checked inductivity of 4919 backedges. 1781 proven. 30 refuted. 0 times theorem prover too weak. 3108 trivial. 0 not checked. [2022-07-21 11:19:00,930 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 11:19:02,168 INFO L356 Elim1Store]: treesize reduction 482, result has 12.8 percent of original size [2022-07-21 11:19:02,169 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 [2022-07-21 11:19:29,758 INFO L134 CoverageAnalysis]: Checked inductivity of 4919 backedges. 76 proven. 37 refuted. 0 times theorem prover too weak. 4806 trivial. 0 not checked. [2022-07-21 11:19:29,758 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:19:29,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [454344148] [2022-07-21 11:19:29,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [454344148] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 11:19:29,758 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 11:19:29,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 24 [2022-07-21 11:19:29,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495099606] [2022-07-21 11:19:29,759 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 11:19:29,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-21 11:19:29,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:19:29,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-21 11:19:29,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=482, Unknown=0, NotChecked=0, Total=552 [2022-07-21 11:19:29,761 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) [2022-07-21 11:19:31,857 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 [] [2022-07-21 11:19:33,865 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:19:35,876 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:19:37,888 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:19:39,900 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:19:41,912 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:20:26,753 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:20:29,918 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:20:32,638 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:20:43,650 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:20:45,669 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:21:27,279 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:21:30,729 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:21:44,265 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:21:45,903 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:21:50,786 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:21:52,805 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:21:56,386 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:21:58,400 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:21:59,848 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:22:01,329 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:22:02,882 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:22:04,899 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:22:06,029 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []