./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec98e64-24d1-4614-a258-4bc8ac05a8b9/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec98e64-24d1-4614-a258-4bc8ac05a8b9/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec98e64-24d1-4614-a258-4bc8ac05a8b9/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec98e64-24d1-4614-a258-4bc8ac05a8b9/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec98e64-24d1-4614-a258-4bc8ac05a8b9/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec98e64-24d1-4614-a258-4bc8ac05a8b9/bin/uautomizer-DQz5hQGWxF --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 d4784d7b609e947942ffa9f8266acf243583adf996e2bcae78fb9e8c8fa71002 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:36:25,818 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:36:25,820 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:36:25,856 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:36:25,857 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:36:25,859 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:36:25,861 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:36:25,864 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:36:25,866 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:36:25,868 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:36:25,869 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:36:25,871 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:36:25,871 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:36:25,873 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:36:25,875 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:36:25,877 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:36:25,878 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:36:25,879 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:36:25,882 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:36:25,885 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:36:25,887 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:36:25,889 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:36:25,891 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:36:25,892 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:36:25,896 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:36:25,897 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:36:25,897 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:36:25,898 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:36:25,899 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:36:25,901 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:36:25,901 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:36:25,902 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:36:25,903 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:36:25,904 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:36:25,906 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:36:25,906 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:36:25,907 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:36:25,908 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:36:25,908 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:36:25,909 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:36:25,910 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:36:25,912 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec98e64-24d1-4614-a258-4bc8ac05a8b9/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-20 06:36:25,956 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:36:25,957 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:36:25,958 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:36:25,958 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:36:25,960 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 06:36:25,960 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 06:36:25,961 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:36:25,961 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:36:25,962 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:36:25,962 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:36:25,964 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:36:25,964 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:36:25,964 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 06:36:25,964 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 06:36:25,965 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 06:36:25,965 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:36:25,965 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:36:25,965 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 06:36:25,966 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:36:25,966 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:36:25,966 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 06:36:25,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:36:25,967 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:36:25,967 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 06:36:25,967 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 06:36:25,967 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 06:36:25,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 06:36:25,968 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 06:36:25,968 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 06:36:25,970 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 06:36:25,971 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:36:25,971 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec98e64-24d1-4614-a258-4bc8ac05a8b9/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec98e64-24d1-4614-a258-4bc8ac05a8b9/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4784d7b609e947942ffa9f8266acf243583adf996e2bcae78fb9e8c8fa71002 [2021-11-20 06:36:26,268 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:36:26,301 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:36:26,305 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:36:26,306 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:36:26,307 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:36:26,309 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec98e64-24d1-4614-a258-4bc8ac05a8b9/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i [2021-11-20 06:36:26,376 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec98e64-24d1-4614-a258-4bc8ac05a8b9/bin/uautomizer-DQz5hQGWxF/data/01e3bbb79/689996c836ad4864b217e39478afd9a0/FLAG02dd84548 [2021-11-20 06:36:27,619 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:36:27,619 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec98e64-24d1-4614-a258-4bc8ac05a8b9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i [2021-11-20 06:36:27,683 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec98e64-24d1-4614-a258-4bc8ac05a8b9/bin/uautomizer-DQz5hQGWxF/data/01e3bbb79/689996c836ad4864b217e39478afd9a0/FLAG02dd84548 [2021-11-20 06:36:27,802 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec98e64-24d1-4614-a258-4bc8ac05a8b9/bin/uautomizer-DQz5hQGWxF/data/01e3bbb79/689996c836ad4864b217e39478afd9a0 [2021-11-20 06:36:27,804 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:36:27,806 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:36:27,807 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:36:27,807 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:36:27,815 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:36:27,816 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:36:27" (1/1) ... [2021-11-20 06:36:27,818 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e817eca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:36:27, skipping insertion in model container [2021-11-20 06:36:27,818 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:36:27" (1/1) ... [2021-11-20 06:36:27,827 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:36:28,012 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:36:31,833 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec98e64-24d1-4614-a258-4bc8ac05a8b9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i[349228,349241] [2021-11-20 06:36:31,837 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec98e64-24d1-4614-a258-4bc8ac05a8b9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i[349397,349410] [2021-11-20 06:36:31,837 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec98e64-24d1-4614-a258-4bc8ac05a8b9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i[349564,349577] [2021-11-20 06:36:31,838 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec98e64-24d1-4614-a258-4bc8ac05a8b9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i[349732,349745] [2021-11-20 06:36:31,866 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:36:31,957 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:36:32,445 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec98e64-24d1-4614-a258-4bc8ac05a8b9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i[349228,349241] [2021-11-20 06:36:32,446 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec98e64-24d1-4614-a258-4bc8ac05a8b9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i[349397,349410] [2021-11-20 06:36:32,447 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec98e64-24d1-4614-a258-4bc8ac05a8b9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i[349564,349577] [2021-11-20 06:36:32,447 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec98e64-24d1-4614-a258-4bc8ac05a8b9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i[349732,349745] [2021-11-20 06:36:32,459 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:36:32,787 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:36:32,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:36:32 WrapperNode [2021-11-20 06:36:32,787 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:36:32,789 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:36:32,789 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:36:32,789 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:36:32,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:36:32" (1/1) ... [2021-11-20 06:36:32,956 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:36:32" (1/1) ... [2021-11-20 06:36:33,203 INFO L137 Inliner]: procedures = 470, calls = 2162, calls flagged for inlining = 234, calls inlined = 217, statements flattened = 5446 [2021-11-20 06:36:33,204 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:36:33,205 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:36:33,206 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:36:33,207 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:36:33,219 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:36:32" (1/1) ... [2021-11-20 06:36:33,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:36:32" (1/1) ... [2021-11-20 06:36:33,263 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:36:32" (1/1) ... [2021-11-20 06:36:33,263 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:36:32" (1/1) ... [2021-11-20 06:36:33,431 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:36:32" (1/1) ... [2021-11-20 06:36:33,468 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:36:32" (1/1) ... [2021-11-20 06:36:33,498 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:36:32" (1/1) ... [2021-11-20 06:36:33,529 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:36:33,530 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:36:33,530 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:36:33,530 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:36:33,531 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:36:32" (1/1) ... [2021-11-20 06:36:33,540 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:36:33,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec98e64-24d1-4614-a258-4bc8ac05a8b9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:36:33,567 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec98e64-24d1-4614-a258-4bc8ac05a8b9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 06:36:33,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec98e64-24d1-4614-a258-4bc8ac05a8b9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 06:36:33,698 INFO L130 BoogieDeclarations]: Found specification of procedure check_if_running [2021-11-20 06:36:33,698 INFO L138 BoogieDeclarations]: Found implementation of procedure check_if_running [2021-11-20 06:36:33,698 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2021-11-20 06:36:33,699 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2021-11-20 06:36:33,699 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-20 06:36:33,699 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-20 06:36:33,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-20 06:36:33,699 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-20 06:36:33,700 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-20 06:36:33,700 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-20 06:36:33,700 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-20 06:36:33,700 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-20 06:36:33,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-20 06:36:33,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-20 06:36:33,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-20 06:36:33,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-20 06:36:33,701 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-20 06:36:33,702 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-20 06:36:33,702 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2021-11-20 06:36:33,702 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2021-11-20 06:36:33,702 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2021-11-20 06:36:33,703 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2021-11-20 06:36:33,704 INFO L130 BoogieDeclarations]: Found specification of procedure reset_tx [2021-11-20 06:36:33,704 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_tx [2021-11-20 06:36:33,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_66 [2021-11-20 06:36:33,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_66 [2021-11-20 06:36:33,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_76 [2021-11-20 06:36:33,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_76 [2021-11-20 06:36:33,705 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-11-20 06:36:33,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-11-20 06:36:33,705 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-20 06:36:33,705 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-20 06:36:33,706 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-20 06:36:33,706 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-20 06:36:33,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-20 06:36:33,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-20 06:36:33,707 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-20 06:36:33,707 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-20 06:36:33,708 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-20 06:36:33,708 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-20 06:36:33,708 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-20 06:36:33,708 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-20 06:36:33,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-20 06:36:33,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-20 06:36:33,710 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-20 06:36:33,711 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-20 06:36:33,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 06:36:33,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_69 [2021-11-20 06:36:33,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_69 [2021-11-20 06:36:33,712 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2021-11-20 06:36:33,712 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2021-11-20 06:36:33,714 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2021-11-20 06:36:33,714 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2021-11-20 06:36:33,714 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-20 06:36:33,714 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-20 06:36:33,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-20 06:36:33,715 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-20 06:36:33,715 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-20 06:36:33,715 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-11-20 06:36:33,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-11-20 06:36:33,716 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-20 06:36:33,717 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-20 06:36:33,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-20 06:36:33,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-20 06:36:33,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-20 06:36:33,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 06:36:33,718 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2021-11-20 06:36:33,718 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2021-11-20 06:36:33,718 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-20 06:36:33,718 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-20 06:36:33,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-20 06:36:33,719 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-20 06:36:33,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-20 06:36:33,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-20 06:36:33,719 INFO L130 BoogieDeclarations]: Found specification of procedure check_duplex [2021-11-20 06:36:33,720 INFO L138 BoogieDeclarations]: Found implementation of procedure check_duplex [2021-11-20 06:36:33,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-20 06:36:33,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-20 06:36:33,720 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2021-11-20 06:36:33,720 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2021-11-20 06:36:33,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-20 06:36:33,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-20 06:36:33,721 INFO L130 BoogieDeclarations]: Found specification of procedure tx_timeout [2021-11-20 06:36:33,721 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_timeout [2021-11-20 06:36:33,722 INFO L130 BoogieDeclarations]: Found specification of procedure sundance_resume [2021-11-20 06:36:33,722 INFO L138 BoogieDeclarations]: Found implementation of procedure sundance_resume [2021-11-20 06:36:33,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-20 06:36:33,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-20 06:36:33,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 06:36:33,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-20 06:36:33,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-20 06:36:33,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-20 06:36:33,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-20 06:36:33,725 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-20 06:36:33,725 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-20 06:36:33,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 06:36:33,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-20 06:36:33,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-20 06:36:33,726 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-20 06:36:33,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-20 06:36:33,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 06:36:33,727 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2021-11-20 06:36:33,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2021-11-20 06:36:33,727 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-20 06:36:33,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-20 06:36:33,727 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2021-11-20 06:36:33,728 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2021-11-20 06:36:33,728 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2021-11-20 06:36:33,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2021-11-20 06:36:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-20 06:36:33,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-20 06:36:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-20 06:36:33,731 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-20 06:36:33,734 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-20 06:36:33,735 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-20 06:36:33,735 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-20 06:36:33,736 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-20 06:36:33,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-20 06:36:33,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-20 06:36:33,737 INFO L130 BoogieDeclarations]: Found specification of procedure __set_mac_addr [2021-11-20 06:36:33,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_mac_addr [2021-11-20 06:36:33,738 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-11-20 06:36:33,743 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-11-20 06:36:33,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:36:33,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:36:33,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_sundance_exit_14_2 [2021-11-20 06:36:33,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_sundance_exit_14_2 [2021-11-20 06:36:33,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-20 06:36:33,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-20 06:36:33,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-20 06:36:33,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-20 06:36:33,745 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_close [2021-11-20 06:36:33,746 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_close [2021-11-20 06:36:33,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-20 06:36:33,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-20 06:36:33,746 INFO L130 BoogieDeclarations]: Found specification of procedure get_stats [2021-11-20 06:36:33,746 INFO L138 BoogieDeclarations]: Found implementation of procedure get_stats [2021-11-20 06:36:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure sundance_poll_controller [2021-11-20 06:36:33,747 INFO L138 BoogieDeclarations]: Found implementation of procedure sundance_poll_controller [2021-11-20 06:36:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-20 06:36:33,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-20 06:36:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure nway_reset [2021-11-20 06:36:33,748 INFO L138 BoogieDeclarations]: Found implementation of procedure nway_reset [2021-11-20 06:36:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_netdev_private [2021-11-20 06:36:33,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_netdev_private [2021-11-20 06:36:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-20 06:36:33,748 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-20 06:36:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-20 06:36:33,749 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-20 06:36:33,750 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2021-11-20 06:36:33,750 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2021-11-20 06:36:33,750 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-20 06:36:33,750 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-20 06:36:33,751 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-20 06:36:33,751 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-20 06:36:33,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 06:36:33,751 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-20 06:36:33,751 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-20 06:36:33,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_75 [2021-11-20 06:36:33,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_75 [2021-11-20 06:36:33,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 06:36:33,752 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-20 06:36:33,752 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-20 06:36:33,752 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-20 06:36:33,753 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-20 06:36:33,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 06:36:33,753 INFO L130 BoogieDeclarations]: Found specification of procedure intr_handler [2021-11-20 06:36:33,753 INFO L138 BoogieDeclarations]: Found implementation of procedure intr_handler [2021-11-20 06:36:33,753 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-20 06:36:33,753 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-20 06:36:33,754 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-20 06:36:33,754 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-20 06:36:33,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_netdev_private [2021-11-20 06:36:33,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_netdev_private [2021-11-20 06:36:33,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-20 06:36:33,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-20 06:36:33,755 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-11-20 06:36:33,755 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-11-20 06:36:33,755 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_sync [2021-11-20 06:36:33,755 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_sync [2021-11-20 06:36:33,755 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_open [2021-11-20 06:36:33,756 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_open [2021-11-20 06:36:33,756 INFO L130 BoogieDeclarations]: Found specification of procedure sundance_reset [2021-11-20 06:36:33,756 INFO L138 BoogieDeclarations]: Found implementation of procedure sundance_reset [2021-11-20 06:36:33,756 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-20 06:36:33,756 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-20 06:36:33,759 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-20 06:36:33,759 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-20 06:36:33,759 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-20 06:36:33,759 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-20 06:36:33,759 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-20 06:36:33,760 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-20 06:36:33,760 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-20 06:36:33,760 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-20 06:36:33,760 INFO L130 BoogieDeclarations]: Found specification of procedure sundance_remove1 [2021-11-20 06:36:33,760 INFO L138 BoogieDeclarations]: Found implementation of procedure sundance_remove1 [2021-11-20 06:36:33,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_70 [2021-11-20 06:36:33,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_70 [2021-11-20 06:36:33,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 06:36:33,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-20 06:36:33,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-20 06:36:33,761 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-20 06:36:33,762 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-20 06:36:33,762 INFO L130 BoogieDeclarations]: Found specification of procedure refill_rx [2021-11-20 06:36:33,762 INFO L138 BoogieDeclarations]: Found implementation of procedure refill_rx [2021-11-20 06:36:33,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-20 06:36:33,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-20 06:36:33,763 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-20 06:36:33,763 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-20 06:36:33,763 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-20 06:36:33,763 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-20 06:36:33,763 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-11-20 06:36:33,763 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-11-20 06:36:33,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 06:36:33,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-20 06:36:33,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-20 06:36:33,764 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-11-20 06:36:33,764 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-11-20 06:36:34,698 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:36:34,707 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:36:35,411 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-20 06:37:41,322 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-20 06:37:41,410 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:37:41,440 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:37:41,440 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-20 06:37:41,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:37:41 BoogieIcfgContainer [2021-11-20 06:37:41,445 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:37:41,447 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 06:37:41,447 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 06:37:41,451 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 06:37:41,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:36:27" (1/3) ... [2021-11-20 06:37:41,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@428f21bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:37:41, skipping insertion in model container [2021-11-20 06:37:41,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:36:32" (2/3) ... [2021-11-20 06:37:41,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@428f21bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:37:41, skipping insertion in model container [2021-11-20 06:37:41,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:37:41" (3/3) ... [2021-11-20 06:37:41,454 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i [2021-11-20 06:37:41,469 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 06:37:41,469 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-20 06:37:41,544 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 06:37:41,549 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 06:37:41,550 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-20 06:37:41,624 INFO L276 IsEmpty]: Start isEmpty. Operand has 1917 states, 1307 states have (on average 1.2685539403213466) internal successors, (1658), 1345 states have internal predecessors, (1658), 511 states have call successors, (511), 101 states have call predecessors, (511), 100 states have return successors, (505), 498 states have call predecessors, (505), 505 states have call successors, (505) [2021-11-20 06:37:41,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-20 06:37:41,644 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:37:41,645 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:37:41,646 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 06:37:41,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:37:41,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1904040031, now seen corresponding path program 1 times [2021-11-20 06:37:41,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:37:41,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694643896] [2021-11-20 06:37:41,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:37:41,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:37:42,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:42,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:37:42,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:42,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:37:42,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:42,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 06:37:42,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:42,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:37:42,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:42,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:37:42,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:42,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:37:42,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:42,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 06:37:42,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:42,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:37:42,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:42,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 06:37:42,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:42,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:37:42,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:42,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 06:37:42,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:42,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:37:42,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:42,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-20 06:37:42,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:42,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:37:42,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:42,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 06:37:42,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:42,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:37:42,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:42,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-20 06:37:42,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:42,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:37:42,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:42,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 06:37:42,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:42,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:37:42,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:42,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 06:37:42,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:43,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:37:43,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:43,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 06:37:43,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:43,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:37:43,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:43,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-20 06:37:43,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:43,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:37:43,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:43,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-20 06:37:43,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:43,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-20 06:37:43,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:43,093 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2021-11-20 06:37:43,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:37:43,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694643896] [2021-11-20 06:37:43,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694643896] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:37:43,097 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:37:43,098 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:37:43,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097159569] [2021-11-20 06:37:43,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:37:43,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:37:43,109 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:37:43,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:37:43,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:37:43,155 INFO L87 Difference]: Start difference. First operand has 1917 states, 1307 states have (on average 1.2685539403213466) internal successors, (1658), 1345 states have internal predecessors, (1658), 511 states have call successors, (511), 101 states have call predecessors, (511), 100 states have return successors, (505), 498 states have call predecessors, (505), 505 states have call successors, (505) Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-20 06:37:45,256 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:37:47,526 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:37:58,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:37:58,767 INFO L93 Difference]: Finished difference Result 5640 states and 8034 transitions. [2021-11-20 06:37:58,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 06:37:58,770 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 171 [2021-11-20 06:37:58,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:37:58,853 INFO L225 Difference]: With dead ends: 5640 [2021-11-20 06:37:58,854 INFO L226 Difference]: Without dead ends: 3744 [2021-11-20 06:37:58,880 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:37:58,886 INFO L933 BasicCegarLoop]: 2659 mSDtfsCounter, 3421 mSDsluCounter, 2487 mSDsCounter, 0 mSdLazyCounter, 1992 mSolverCounterSat, 1637 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3877 SdHoareTripleChecker+Valid, 5146 SdHoareTripleChecker+Invalid, 3631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1637 IncrementalHoareTripleChecker+Valid, 1992 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2021-11-20 06:37:58,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3877 Valid, 5146 Invalid, 3631 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1637 Valid, 1992 Invalid, 2 Unknown, 0 Unchecked, 14.9s Time] [2021-11-20 06:37:58,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3744 states. [2021-11-20 06:37:59,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3744 to 3670. [2021-11-20 06:37:59,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3670 states, 2515 states have (on average 1.262027833001988) internal successors, (3174), 2582 states have internal predecessors, (3174), 956 states have call successors, (956), 197 states have call predecessors, (956), 196 states have return successors, (952), 938 states have call predecessors, (952), 952 states have call successors, (952) [2021-11-20 06:37:59,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3670 states to 3670 states and 5082 transitions. [2021-11-20 06:37:59,312 INFO L78 Accepts]: Start accepts. Automaton has 3670 states and 5082 transitions. Word has length 171 [2021-11-20 06:37:59,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:37:59,317 INFO L470 AbstractCegarLoop]: Abstraction has 3670 states and 5082 transitions. [2021-11-20 06:37:59,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-20 06:37:59,318 INFO L276 IsEmpty]: Start isEmpty. Operand 3670 states and 5082 transitions. [2021-11-20 06:37:59,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-11-20 06:37:59,334 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:37:59,335 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:37:59,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 06:37:59,335 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 06:37:59,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:37:59,336 INFO L85 PathProgramCache]: Analyzing trace with hash -702002883, now seen corresponding path program 1 times [2021-11-20 06:37:59,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:37:59,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596185152] [2021-11-20 06:37:59,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:37:59,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:37:59,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:59,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:37:59,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:59,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:37:59,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:59,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 06:37:59,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:59,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:37:59,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:59,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:37:59,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:59,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:37:59,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:59,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 06:37:59,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:59,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:37:59,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:59,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 06:37:59,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:59,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:37:59,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:59,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 06:37:59,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:59,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:37:59,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:59,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-20 06:37:59,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:59,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:37:59,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:59,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 06:37:59,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:59,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:37:59,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:00,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-20 06:38:00,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:00,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:38:00,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:00,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 06:38:00,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:00,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:38:00,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:00,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 06:38:00,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:00,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:38:00,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:00,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 06:38:00,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:00,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:38:00,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:00,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-20 06:38:00,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:00,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:38:00,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:00,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-20 06:38:00,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:00,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-20 06:38:00,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:00,157 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2021-11-20 06:38:00,157 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:38:00,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596185152] [2021-11-20 06:38:00,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596185152] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:38:00,161 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:38:00,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:38:00,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402441370] [2021-11-20 06:38:00,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:38:00,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:38:00,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:38:00,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:38:00,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:38:00,169 INFO L87 Difference]: Start difference. First operand 3670 states and 5082 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-20 06:38:02,240 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:38:04,481 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:38:17,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:38:17,406 INFO L93 Difference]: Finished difference Result 10478 states and 14545 transitions. [2021-11-20 06:38:17,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 06:38:17,407 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 180 [2021-11-20 06:38:17,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:38:17,477 INFO L225 Difference]: With dead ends: 10478 [2021-11-20 06:38:17,477 INFO L226 Difference]: Without dead ends: 6839 [2021-11-20 06:38:17,495 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:38:17,497 INFO L933 BasicCegarLoop]: 2612 mSDtfsCounter, 3014 mSDsluCounter, 2439 mSDsCounter, 0 mSdLazyCounter, 1995 mSolverCounterSat, 1637 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3428 SdHoareTripleChecker+Valid, 5051 SdHoareTripleChecker+Invalid, 3634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1637 IncrementalHoareTripleChecker+Valid, 1995 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.6s IncrementalHoareTripleChecker+Time [2021-11-20 06:38:17,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3428 Valid, 5051 Invalid, 3634 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1637 Valid, 1995 Invalid, 2 Unknown, 0 Unchecked, 16.6s Time] [2021-11-20 06:38:17,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6839 states. [2021-11-20 06:38:17,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6839 to 6681. [2021-11-20 06:38:17,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6681 states, 4526 states have (on average 1.258285461776403) internal successors, (5695), 4660 states have internal predecessors, (5695), 1767 states have call successors, (1767), 384 states have call predecessors, (1767), 385 states have return successors, (1775), 1728 states have call predecessors, (1775), 1763 states have call successors, (1775) [2021-11-20 06:38:17,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6681 states to 6681 states and 9237 transitions. [2021-11-20 06:38:17,895 INFO L78 Accepts]: Start accepts. Automaton has 6681 states and 9237 transitions. Word has length 180 [2021-11-20 06:38:17,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:38:17,897 INFO L470 AbstractCegarLoop]: Abstraction has 6681 states and 9237 transitions. [2021-11-20 06:38:17,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-20 06:38:17,897 INFO L276 IsEmpty]: Start isEmpty. Operand 6681 states and 9237 transitions. [2021-11-20 06:38:17,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-11-20 06:38:17,903 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:38:17,904 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:38:17,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 06:38:17,904 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 06:38:17,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:38:17,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1018063213, now seen corresponding path program 1 times [2021-11-20 06:38:17,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:38:17,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439814731] [2021-11-20 06:38:17,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:38:17,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:38:18,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:18,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:38:18,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:18,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:38:18,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:18,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 06:38:18,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:18,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:38:18,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:18,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:38:18,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:18,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:38:18,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:18,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 06:38:18,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:18,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:38:18,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:18,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 06:38:18,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:18,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:38:18,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:18,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 06:38:18,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:18,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:38:18,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:18,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-20 06:38:18,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:18,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:38:18,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:18,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 06:38:18,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:18,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:38:18,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:18,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-20 06:38:18,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:18,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:38:18,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:18,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 06:38:18,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:18,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:38:18,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:18,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 06:38:18,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:18,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:38:18,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:18,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 06:38:18,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:18,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:38:18,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:18,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-20 06:38:18,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:18,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:38:18,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:18,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-20 06:38:18,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:18,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-20 06:38:18,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:18,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-20 06:38:18,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:18,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-20 06:38:18,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:18,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-20 06:38:18,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:18,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-20 06:38:18,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:18,620 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2021-11-20 06:38:18,621 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:38:18,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439814731] [2021-11-20 06:38:18,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439814731] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:38:18,621 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:38:18,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:38:18,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233865045] [2021-11-20 06:38:18,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:38:18,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:38:18,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:38:18,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:38:18,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:38:18,625 INFO L87 Difference]: Start difference. First operand 6681 states and 9237 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-20 06:38:20,693 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:38:22,936 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:38:34,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:38:34,640 INFO L93 Difference]: Finished difference Result 19921 states and 27658 transitions. [2021-11-20 06:38:34,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 06:38:34,641 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 198 [2021-11-20 06:38:34,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:38:34,762 INFO L225 Difference]: With dead ends: 19921 [2021-11-20 06:38:34,762 INFO L226 Difference]: Without dead ends: 13271 [2021-11-20 06:38:34,803 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:38:34,807 INFO L933 BasicCegarLoop]: 2746 mSDtfsCounter, 3392 mSDsluCounter, 2543 mSDsCounter, 0 mSdLazyCounter, 1918 mSolverCounterSat, 1646 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3834 SdHoareTripleChecker+Valid, 5289 SdHoareTripleChecker+Invalid, 3566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1646 IncrementalHoareTripleChecker+Valid, 1918 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:38:34,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3834 Valid, 5289 Invalid, 3566 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1646 Valid, 1918 Invalid, 2 Unknown, 0 Unchecked, 15.3s Time] [2021-11-20 06:38:34,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13271 states. [2021-11-20 06:38:35,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13271 to 12985. [2021-11-20 06:38:35,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12985 states, 8802 states have (on average 1.2605089752329015) internal successors, (11095), 9082 states have internal predecessors, (11095), 3421 states have call successors, (3421), 762 states have call predecessors, (3421), 759 states have return successors, (3469), 3320 states have call predecessors, (3469), 3417 states have call successors, (3469) [2021-11-20 06:38:35,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12985 states to 12985 states and 17985 transitions. [2021-11-20 06:38:35,593 INFO L78 Accepts]: Start accepts. Automaton has 12985 states and 17985 transitions. Word has length 198 [2021-11-20 06:38:35,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:38:35,595 INFO L470 AbstractCegarLoop]: Abstraction has 12985 states and 17985 transitions. [2021-11-20 06:38:35,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-20 06:38:35,597 INFO L276 IsEmpty]: Start isEmpty. Operand 12985 states and 17985 transitions. [2021-11-20 06:38:35,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-11-20 06:38:35,604 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:38:35,604 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 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] [2021-11-20 06:38:35,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 06:38:35,605 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 06:38:35,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:38:35,605 INFO L85 PathProgramCache]: Analyzing trace with hash -111836799, now seen corresponding path program 1 times [2021-11-20 06:38:35,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:38:35,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784081531] [2021-11-20 06:38:35,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:38:35,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:38:35,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:36,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:38:36,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:36,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:38:36,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:36,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 06:38:36,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:36,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:38:36,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:36,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:38:36,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:36,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:38:36,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:36,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 06:38:36,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:36,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:38:36,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:36,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 06:38:36,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:36,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:38:36,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:36,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 06:38:36,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:36,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:38:36,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:36,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-20 06:38:36,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:36,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:38:36,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:36,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 06:38:36,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:36,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:38:36,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:36,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-20 06:38:36,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:36,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:38:36,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:36,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 06:38:36,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:36,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:38:36,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:36,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 06:38:36,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:36,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:38:36,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:36,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 06:38:36,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:36,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:38:36,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:36,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-20 06:38:36,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:36,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:38:36,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:36,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-20 06:38:36,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:36,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 06:38:36,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:36,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-20 06:38:36,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:36,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-20 06:38:36,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:36,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-20 06:38:36,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:36,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-20 06:38:36,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:38:36,475 INFO L134 CoverageAnalysis]: Checked inductivity of 744 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 744 trivial. 0 not checked. [2021-11-20 06:38:36,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:38:36,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784081531] [2021-11-20 06:38:36,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784081531] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:38:36,476 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:38:36,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 06:38:36,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943144149] [2021-11-20 06:38:36,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:38:36,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 06:38:36,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:38:36,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 06:38:36,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:38:36,479 INFO L87 Difference]: Start difference. First operand 12985 states and 17985 transitions. Second operand has 7 states, 6 states have (on average 10.666666666666666) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-20 06:38:38,548 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:38:40,788 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:39:07,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:39:07,208 INFO L93 Difference]: Finished difference Result 28120 states and 38729 transitions. [2021-11-20 06:39:07,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 06:39:07,208 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.666666666666666) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 210 [2021-11-20 06:39:07,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:39:07,314 INFO L225 Difference]: With dead ends: 28120 [2021-11-20 06:39:07,314 INFO L226 Difference]: Without dead ends: 15166 [2021-11-20 06:39:07,389 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:39:07,390 INFO L933 BasicCegarLoop]: 3473 mSDtfsCounter, 5625 mSDsluCounter, 3837 mSDsCounter, 0 mSdLazyCounter, 6166 mSolverCounterSat, 2598 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6307 SdHoareTripleChecker+Valid, 7310 SdHoareTripleChecker+Invalid, 8766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2598 IncrementalHoareTripleChecker+Valid, 6166 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.8s IncrementalHoareTripleChecker+Time [2021-11-20 06:39:07,391 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6307 Valid, 7310 Invalid, 8766 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2598 Valid, 6166 Invalid, 2 Unknown, 0 Unchecked, 29.8s Time] [2021-11-20 06:39:07,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15166 states. [2021-11-20 06:39:08,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15166 to 14707. [2021-11-20 06:39:08,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14707 states, 10099 states have (on average 1.2522031884344984) internal successors, (12646), 10389 states have internal predecessors, (12646), 3660 states have call successors, (3660), 959 states have call predecessors, (3660), 945 states have return successors, (3682), 3536 states have call predecessors, (3682), 3656 states have call successors, (3682) [2021-11-20 06:39:08,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14707 states to 14707 states and 19988 transitions. [2021-11-20 06:39:08,410 INFO L78 Accepts]: Start accepts. Automaton has 14707 states and 19988 transitions. Word has length 210 [2021-11-20 06:39:08,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:39:08,412 INFO L470 AbstractCegarLoop]: Abstraction has 14707 states and 19988 transitions. [2021-11-20 06:39:08,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.666666666666666) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-20 06:39:08,412 INFO L276 IsEmpty]: Start isEmpty. Operand 14707 states and 19988 transitions. [2021-11-20 06:39:08,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-11-20 06:39:08,419 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:39:08,419 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 2, 2, 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] [2021-11-20 06:39:08,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 06:39:08,420 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 06:39:08,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:39:08,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1904993597, now seen corresponding path program 1 times [2021-11-20 06:39:08,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:39:08,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018212387] [2021-11-20 06:39:08,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:39:08,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:39:08,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:08,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:39:08,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:08,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:39:08,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:08,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 06:39:08,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:08,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:39:08,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:08,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:39:08,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:08,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:39:08,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:08,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 06:39:08,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:08,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:39:08,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:08,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 06:39:08,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:08,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:39:08,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:08,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 06:39:08,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:08,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:39:08,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:08,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-20 06:39:08,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:08,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:39:08,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:08,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 06:39:08,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:08,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:39:08,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:08,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-20 06:39:08,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:08,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:39:08,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:08,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 06:39:08,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:08,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:39:08,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:08,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 06:39:08,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:08,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:39:08,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:08,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 06:39:08,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:08,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:39:08,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:08,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-20 06:39:09,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:09,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:39:09,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:09,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-20 06:39:09,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:09,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-20 06:39:09,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:09,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 06:39:09,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:09,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-20 06:39:09,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:09,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-20 06:39:09,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:09,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:39:09,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:09,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-20 06:39:09,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:09,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-11-20 06:39:09,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:09,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-11-20 06:39:09,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:09,085 INFO L134 CoverageAnalysis]: Checked inductivity of 910 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2021-11-20 06:39:09,085 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:39:09,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018212387] [2021-11-20 06:39:09,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018212387] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:39:09,086 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:39:09,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:39:09,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643756670] [2021-11-20 06:39:09,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:39:09,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:39:09,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:39:09,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:39:09,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:39:09,088 INFO L87 Difference]: Start difference. First operand 14707 states and 19988 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-20 06:39:11,154 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:39:13,363 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:39:24,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:39:24,136 INFO L93 Difference]: Finished difference Result 43300 states and 59101 transitions. [2021-11-20 06:39:24,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 06:39:24,136 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 227 [2021-11-20 06:39:24,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:39:24,276 INFO L225 Difference]: With dead ends: 43300 [2021-11-20 06:39:24,276 INFO L226 Difference]: Without dead ends: 29013 [2021-11-20 06:39:24,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:39:24,324 INFO L933 BasicCegarLoop]: 3821 mSDtfsCounter, 3013 mSDsluCounter, 3102 mSDsCounter, 0 mSdLazyCounter, 1989 mSolverCounterSat, 1393 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3465 SdHoareTripleChecker+Valid, 6923 SdHoareTripleChecker+Invalid, 3384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1393 IncrementalHoareTripleChecker+Valid, 1989 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:39:24,324 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3465 Valid, 6923 Invalid, 3384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1393 Valid, 1989 Invalid, 2 Unknown, 0 Unchecked, 14.2s Time] [2021-11-20 06:39:24,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29013 states. [2021-11-20 06:39:25,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29013 to 28264. [2021-11-20 06:39:25,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28264 states, 19446 states have (on average 1.2527512084747505) internal successors, (24361), 19977 states have internal predecessors, (24361), 6997 states have call successors, (6997), 1837 states have call predecessors, (6997), 1818 states have return successors, (7045), 6803 states have call predecessors, (7045), 6993 states have call successors, (7045) [2021-11-20 06:39:25,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28264 states to 28264 states and 38403 transitions. [2021-11-20 06:39:25,872 INFO L78 Accepts]: Start accepts. Automaton has 28264 states and 38403 transitions. Word has length 227 [2021-11-20 06:39:25,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:39:25,873 INFO L470 AbstractCegarLoop]: Abstraction has 28264 states and 38403 transitions. [2021-11-20 06:39:25,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-20 06:39:25,873 INFO L276 IsEmpty]: Start isEmpty. Operand 28264 states and 38403 transitions. [2021-11-20 06:39:25,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-11-20 06:39:25,879 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:39:25,879 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 2, 2, 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] [2021-11-20 06:39:25,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 06:39:25,880 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 06:39:25,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:39:25,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1764444987, now seen corresponding path program 1 times [2021-11-20 06:39:25,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:39:25,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105450205] [2021-11-20 06:39:25,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:39:25,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:39:26,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:26,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:39:26,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:26,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:39:26,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:26,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 06:39:26,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:26,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:39:26,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:26,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:39:26,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:26,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:39:26,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:26,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 06:39:26,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:26,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:39:26,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:26,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 06:39:26,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:26,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:39:26,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:26,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 06:39:26,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:26,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:39:26,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:26,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-20 06:39:26,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:26,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:39:26,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:26,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 06:39:26,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:26,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:39:26,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:26,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-20 06:39:26,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:26,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:39:26,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:26,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 06:39:26,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:26,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:39:26,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:26,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 06:39:26,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:26,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:39:26,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:26,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 06:39:26,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:26,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:39:26,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:26,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-20 06:39:26,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:26,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:39:26,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:26,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-20 06:39:26,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:26,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-20 06:39:26,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:26,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 06:39:26,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:26,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-20 06:39:26,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:26,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-20 06:39:26,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:26,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:39:26,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:26,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-20 06:39:26,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:26,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-11-20 06:39:26,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:26,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-11-20 06:39:26,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:26,773 INFO L134 CoverageAnalysis]: Checked inductivity of 910 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 910 trivial. 0 not checked. [2021-11-20 06:39:26,774 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:39:26,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105450205] [2021-11-20 06:39:26,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105450205] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:39:26,774 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:39:26,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 06:39:26,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177836223] [2021-11-20 06:39:26,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:39:26,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:39:26,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:39:26,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:39:26,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:39:26,777 INFO L87 Difference]: Start difference. First operand 28264 states and 38403 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 06:39:28,842 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:39:40,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:39:40,891 INFO L93 Difference]: Finished difference Result 29015 states and 39594 transitions. [2021-11-20 06:39:40,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 06:39:40,894 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 227 [2021-11-20 06:39:40,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:39:41,058 INFO L225 Difference]: With dead ends: 29015 [2021-11-20 06:39:41,058 INFO L226 Difference]: Without dead ends: 29013 [2021-11-20 06:39:41,079 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-20 06:39:41,081 INFO L933 BasicCegarLoop]: 2393 mSDtfsCounter, 2694 mSDsluCounter, 4171 mSDsCounter, 0 mSdLazyCounter, 2485 mSolverCounterSat, 1193 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2926 SdHoareTripleChecker+Valid, 6564 SdHoareTripleChecker+Invalid, 3679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1193 IncrementalHoareTripleChecker+Valid, 2485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2021-11-20 06:39:41,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2926 Valid, 6564 Invalid, 3679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1193 Valid, 2485 Invalid, 1 Unknown, 0 Unchecked, 12.9s Time] [2021-11-20 06:39:41,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29013 states. [2021-11-20 06:39:42,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29013 to 28268. [2021-11-20 06:39:42,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28268 states, 19449 states have (on average 1.252712221708057) internal successors, (24364), 19980 states have internal predecessors, (24364), 6997 states have call successors, (6997), 1838 states have call predecessors, (6997), 1819 states have return successors, (7045), 6803 states have call predecessors, (7045), 6993 states have call successors, (7045) [2021-11-20 06:39:42,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28268 states to 28268 states and 38406 transitions. [2021-11-20 06:39:42,881 INFO L78 Accepts]: Start accepts. Automaton has 28268 states and 38406 transitions. Word has length 227 [2021-11-20 06:39:42,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:39:42,882 INFO L470 AbstractCegarLoop]: Abstraction has 28268 states and 38406 transitions. [2021-11-20 06:39:42,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 06:39:42,883 INFO L276 IsEmpty]: Start isEmpty. Operand 28268 states and 38406 transitions. [2021-11-20 06:39:42,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2021-11-20 06:39:42,892 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:39:42,892 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 2, 2, 2, 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] [2021-11-20 06:39:42,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 06:39:42,893 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 06:39:42,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:39:42,894 INFO L85 PathProgramCache]: Analyzing trace with hash -692345477, now seen corresponding path program 1 times [2021-11-20 06:39:42,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:39:42,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631433337] [2021-11-20 06:39:42,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:39:42,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:39:43,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:43,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:39:43,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:43,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:39:43,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:43,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 06:39:43,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:43,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:39:43,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:43,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:39:43,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:43,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:39:43,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:43,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 06:39:43,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:43,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:39:43,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:43,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 06:39:43,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:43,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:39:43,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:43,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 06:39:43,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:43,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:39:43,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:43,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-20 06:39:43,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:43,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:39:43,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:43,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 06:39:43,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:43,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:39:43,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:43,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-20 06:39:43,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:43,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:39:43,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:43,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 06:39:43,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:43,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:39:43,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:43,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 06:39:43,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:43,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:39:43,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:43,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 06:39:43,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:43,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:39:43,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:43,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-20 06:39:43,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:43,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:39:43,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:43,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-20 06:39:43,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:43,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-20 06:39:43,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:43,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 06:39:43,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:43,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-20 06:39:43,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:43,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-20 06:39:43,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:43,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:39:43,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:43,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-20 06:39:43,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:43,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-11-20 06:39:43,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:43,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-11-20 06:39:43,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:43,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-20 06:39:43,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:43,852 INFO L134 CoverageAnalysis]: Checked inductivity of 912 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 910 trivial. 0 not checked. [2021-11-20 06:39:43,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:39:43,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631433337] [2021-11-20 06:39:43,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631433337] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:39:43,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:39:43,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 06:39:43,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117284168] [2021-11-20 06:39:43,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:39:43,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:39:43,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:39:43,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:39:43,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:39:43,856 INFO L87 Difference]: Start difference. First operand 28268 states and 38406 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-20 06:39:46,028 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:39:57,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:39:57,712 INFO L93 Difference]: Finished difference Result 29019 states and 39597 transitions. [2021-11-20 06:39:57,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 06:39:57,713 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 232 [2021-11-20 06:39:57,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:39:57,925 INFO L225 Difference]: With dead ends: 29019 [2021-11-20 06:39:57,925 INFO L226 Difference]: Without dead ends: 29017 [2021-11-20 06:39:57,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-20 06:39:57,937 INFO L933 BasicCegarLoop]: 2389 mSDtfsCounter, 2691 mSDsluCounter, 4157 mSDsCounter, 0 mSdLazyCounter, 2485 mSolverCounterSat, 1196 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2923 SdHoareTripleChecker+Valid, 6546 SdHoareTripleChecker+Invalid, 3682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1196 IncrementalHoareTripleChecker+Valid, 2485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2021-11-20 06:39:57,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2923 Valid, 6546 Invalid, 3682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1196 Valid, 2485 Invalid, 1 Unknown, 0 Unchecked, 12.6s Time] [2021-11-20 06:39:57,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29017 states. [2021-11-20 06:39:59,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29017 to 28272. [2021-11-20 06:39:59,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28272 states, 19452 states have (on average 1.2526732469668929) internal successors, (24367), 19983 states have internal predecessors, (24367), 6997 states have call successors, (6997), 1839 states have call predecessors, (6997), 1820 states have return successors, (7045), 6803 states have call predecessors, (7045), 6993 states have call successors, (7045) [2021-11-20 06:39:59,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28272 states to 28272 states and 38409 transitions. [2021-11-20 06:39:59,295 INFO L78 Accepts]: Start accepts. Automaton has 28272 states and 38409 transitions. Word has length 232 [2021-11-20 06:39:59,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:39:59,296 INFO L470 AbstractCegarLoop]: Abstraction has 28272 states and 38409 transitions. [2021-11-20 06:39:59,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-20 06:39:59,296 INFO L276 IsEmpty]: Start isEmpty. Operand 28272 states and 38409 transitions. [2021-11-20 06:39:59,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2021-11-20 06:39:59,303 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:39:59,304 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 3, 2, 2, 2, 2, 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] [2021-11-20 06:39:59,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 06:39:59,304 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 06:39:59,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:39:59,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1482280517, now seen corresponding path program 1 times [2021-11-20 06:39:59,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:39:59,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503297623] [2021-11-20 06:39:59,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:39:59,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:39:59,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:00,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:40:00,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:00,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:40:00,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:00,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 06:40:00,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:00,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:40:00,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:00,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:40:00,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:00,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:40:00,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:00,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 06:40:00,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:00,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:40:00,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:00,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 06:40:00,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:00,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:40:00,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:00,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 06:40:00,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:00,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:40:00,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:00,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-20 06:40:00,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:00,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:40:00,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:00,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 06:40:00,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:00,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:40:00,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:00,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-20 06:40:00,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:00,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:40:00,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:00,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 06:40:00,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:00,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:40:00,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:00,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 06:40:00,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:00,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:40:00,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:00,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 06:40:00,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:00,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:40:00,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:00,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-20 06:40:00,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:00,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:40:00,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:00,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-20 06:40:00,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:00,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-20 06:40:00,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:00,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 06:40:00,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:00,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-20 06:40:00,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:00,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-20 06:40:00,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:00,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:40:00,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:00,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-20 06:40:00,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:00,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-11-20 06:40:00,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:00,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-11-20 06:40:00,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:00,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-20 06:40:00,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:00,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-20 06:40:00,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:00,483 INFO L134 CoverageAnalysis]: Checked inductivity of 918 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 914 trivial. 0 not checked. [2021-11-20 06:40:00,483 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:40:00,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503297623] [2021-11-20 06:40:00,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503297623] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:40:00,484 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:40:00,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 06:40:00,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030417663] [2021-11-20 06:40:00,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:40:00,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:40:00,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:40:00,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:40:00,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:40:00,487 INFO L87 Difference]: Start difference. First operand 28272 states and 38409 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-20 06:40:02,554 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:40:14,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:40:14,517 INFO L93 Difference]: Finished difference Result 29023 states and 39600 transitions. [2021-11-20 06:40:14,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 06:40:14,518 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 237 [2021-11-20 06:40:14,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:40:14,639 INFO L225 Difference]: With dead ends: 29023 [2021-11-20 06:40:14,640 INFO L226 Difference]: Without dead ends: 29021 [2021-11-20 06:40:14,651 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-20 06:40:14,652 INFO L933 BasicCegarLoop]: 2393 mSDtfsCounter, 2688 mSDsluCounter, 4165 mSDsCounter, 0 mSdLazyCounter, 2485 mSolverCounterSat, 1193 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2920 SdHoareTripleChecker+Valid, 6558 SdHoareTripleChecker+Invalid, 3679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1193 IncrementalHoareTripleChecker+Valid, 2485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2021-11-20 06:40:14,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2920 Valid, 6558 Invalid, 3679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1193 Valid, 2485 Invalid, 1 Unknown, 0 Unchecked, 12.7s Time] [2021-11-20 06:40:14,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29021 states. [2021-11-20 06:40:15,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29021 to 28276. [2021-11-20 06:40:15,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28276 states, 19455 states have (on average 1.2526342842456952) internal successors, (24370), 19986 states have internal predecessors, (24370), 6997 states have call successors, (6997), 1840 states have call predecessors, (6997), 1821 states have return successors, (7045), 6803 states have call predecessors, (7045), 6993 states have call successors, (7045) [2021-11-20 06:40:15,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28276 states to 28276 states and 38412 transitions. [2021-11-20 06:40:15,955 INFO L78 Accepts]: Start accepts. Automaton has 28276 states and 38412 transitions. Word has length 237 [2021-11-20 06:40:15,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:40:15,956 INFO L470 AbstractCegarLoop]: Abstraction has 28276 states and 38412 transitions. [2021-11-20 06:40:15,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-20 06:40:15,956 INFO L276 IsEmpty]: Start isEmpty. Operand 28276 states and 38412 transitions. [2021-11-20 06:40:15,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-11-20 06:40:15,965 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:40:15,965 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 5, 5, 5, 4, 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] [2021-11-20 06:40:15,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-20 06:40:15,966 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 06:40:15,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:40:15,967 INFO L85 PathProgramCache]: Analyzing trace with hash -722426746, now seen corresponding path program 1 times [2021-11-20 06:40:15,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:40:15,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697505952] [2021-11-20 06:40:15,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:40:15,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:40:16,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:16,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:40:16,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:16,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:40:16,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:16,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 06:40:16,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:16,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:40:16,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:16,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:40:16,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:16,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:40:16,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:16,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 06:40:16,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:16,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:40:16,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:16,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 06:40:16,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:16,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:40:16,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:16,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 06:40:16,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:16,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:40:16,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:16,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-20 06:40:16,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:16,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:40:16,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:16,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 06:40:16,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:16,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:40:16,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:16,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-20 06:40:16,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:16,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:40:16,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:16,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 06:40:16,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:16,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:40:16,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:16,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 06:40:16,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:16,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:40:16,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:16,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 06:40:16,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:16,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:40:16,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:16,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-20 06:40:16,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:16,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:40:16,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:16,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-20 06:40:16,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:16,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-20 06:40:16,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:16,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 06:40:16,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:16,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-20 06:40:16,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:16,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-20 06:40:16,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:16,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:40:16,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:16,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-20 06:40:16,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:16,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-11-20 06:40:16,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:16,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-20 06:40:16,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:16,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-11-20 06:40:16,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:16,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:40:16,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:16,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-20 06:40:16,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:16,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-11-20 06:40:16,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:16,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-11-20 06:40:16,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:16,776 INFO L134 CoverageAnalysis]: Checked inductivity of 940 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 928 trivial. 0 not checked. [2021-11-20 06:40:16,776 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:40:16,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697505952] [2021-11-20 06:40:16,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697505952] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:40:16,777 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:40:16,777 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 06:40:16,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598377581] [2021-11-20 06:40:16,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:40:16,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 06:40:16,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:40:16,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 06:40:16,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:40:16,781 INFO L87 Difference]: Start difference. First operand 28276 states and 38412 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-11-20 06:40:18,850 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:40:21,080 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:40:23,331 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:40:41,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:40:41,882 INFO L93 Difference]: Finished difference Result 70839 states and 96576 transitions. [2021-11-20 06:40:41,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 06:40:41,891 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 254 [2021-11-20 06:40:41,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:40:42,225 INFO L225 Difference]: With dead ends: 70839 [2021-11-20 06:40:42,226 INFO L226 Difference]: Without dead ends: 42983 [2021-11-20 06:40:42,306 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-20 06:40:42,309 INFO L933 BasicCegarLoop]: 4500 mSDtfsCounter, 3468 mSDsluCounter, 3974 mSDsCounter, 0 mSdLazyCounter, 3219 mSolverCounterSat, 2648 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3719 SdHoareTripleChecker+Valid, 8474 SdHoareTripleChecker+Invalid, 5870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2648 IncrementalHoareTripleChecker+Valid, 3219 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.9s IncrementalHoareTripleChecker+Time [2021-11-20 06:40:42,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3719 Valid, 8474 Invalid, 5870 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2648 Valid, 3219 Invalid, 3 Unknown, 0 Unchecked, 22.9s Time] [2021-11-20 06:40:42,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42983 states. [2021-11-20 06:40:44,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42983 to 41845. [2021-11-20 06:40:44,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41845 states, 28814 states have (on average 1.2527590754494342) internal successors, (36097), 29586 states have internal predecessors, (36097), 10334 states have call successors, (10334), 2718 states have call predecessors, (10334), 2694 states have return successors, (10408), 10070 states have call predecessors, (10408), 10330 states have call successors, (10408) [2021-11-20 06:40:44,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41845 states to 41845 states and 56839 transitions. [2021-11-20 06:40:44,667 INFO L78 Accepts]: Start accepts. Automaton has 41845 states and 56839 transitions. Word has length 254 [2021-11-20 06:40:44,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:40:44,668 INFO L470 AbstractCegarLoop]: Abstraction has 41845 states and 56839 transitions. [2021-11-20 06:40:44,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-11-20 06:40:44,669 INFO L276 IsEmpty]: Start isEmpty. Operand 41845 states and 56839 transitions. [2021-11-20 06:40:44,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2021-11-20 06:40:44,677 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:40:44,678 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 4, 3, 3, 2, 2, 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] [2021-11-20 06:40:44,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-20 06:40:44,678 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 06:40:44,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:40:44,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1004229765, now seen corresponding path program 1 times [2021-11-20 06:40:44,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:40:44,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020926040] [2021-11-20 06:40:44,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:40:44,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:40:44,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:45,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:40:45,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:45,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:40:45,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:45,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 06:40:45,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:45,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:40:45,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:45,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:40:45,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:45,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:40:45,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:45,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 06:40:45,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:45,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:40:45,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:45,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 06:40:45,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:45,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:40:45,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:45,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 06:40:45,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:45,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:40:45,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:45,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-20 06:40:45,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:45,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:40:45,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:45,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 06:40:45,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:45,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:40:45,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:45,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-20 06:40:45,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:45,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:40:45,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:45,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 06:40:45,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:45,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:40:45,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:45,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 06:40:45,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:45,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:40:45,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:45,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 06:40:45,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:45,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:40:45,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:45,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-20 06:40:45,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:45,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:40:45,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:45,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-20 06:40:45,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:45,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-20 06:40:45,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:45,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 06:40:45,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:45,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-20 06:40:45,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:45,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-20 06:40:45,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:45,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:40:45,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:45,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-20 06:40:45,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:45,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-11-20 06:40:45,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:45,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-11-20 06:40:45,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:45,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-20 06:40:45,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:45,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-20 06:40:45,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:45,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-11-20 06:40:45,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:45,536 INFO L134 CoverageAnalysis]: Checked inductivity of 928 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 922 trivial. 0 not checked. [2021-11-20 06:40:45,536 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:40:45,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020926040] [2021-11-20 06:40:45,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020926040] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:40:45,537 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:40:45,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 06:40:45,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373952674] [2021-11-20 06:40:45,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:40:45,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:40:45,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:40:45,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:40:45,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:40:45,541 INFO L87 Difference]: Start difference. First operand 41845 states and 56839 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-20 06:40:47,619 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:41:00,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:41:00,574 INFO L93 Difference]: Finished difference Result 42954 states and 58594 transitions. [2021-11-20 06:41:00,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 06:41:00,574 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 242 [2021-11-20 06:41:00,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:41:00,738 INFO L225 Difference]: With dead ends: 42954 [2021-11-20 06:41:00,739 INFO L226 Difference]: Without dead ends: 42952 [2021-11-20 06:41:00,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-20 06:41:00,759 INFO L933 BasicCegarLoop]: 2394 mSDtfsCounter, 2687 mSDsluCounter, 4167 mSDsCounter, 0 mSdLazyCounter, 2485 mSolverCounterSat, 1192 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2919 SdHoareTripleChecker+Valid, 6561 SdHoareTripleChecker+Invalid, 3678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1192 IncrementalHoareTripleChecker+Valid, 2485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2021-11-20 06:41:00,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2919 Valid, 6561 Invalid, 3678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1192 Valid, 2485 Invalid, 1 Unknown, 0 Unchecked, 12.8s Time] [2021-11-20 06:41:00,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42952 states. [2021-11-20 06:41:02,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42952 to 41849. [2021-11-20 06:41:02,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41849 states, 28817 states have (on average 1.2527327619113717) internal successors, (36100), 29589 states have internal predecessors, (36100), 10334 states have call successors, (10334), 2719 states have call predecessors, (10334), 2695 states have return successors, (10408), 10070 states have call predecessors, (10408), 10330 states have call successors, (10408) [2021-11-20 06:41:02,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41849 states to 41849 states and 56842 transitions. [2021-11-20 06:41:02,861 INFO L78 Accepts]: Start accepts. Automaton has 41849 states and 56842 transitions. Word has length 242 [2021-11-20 06:41:02,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:41:02,862 INFO L470 AbstractCegarLoop]: Abstraction has 41849 states and 56842 transitions. [2021-11-20 06:41:02,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-20 06:41:02,863 INFO L276 IsEmpty]: Start isEmpty. Operand 41849 states and 56842 transitions. [2021-11-20 06:41:02,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2021-11-20 06:41:02,871 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:41:02,871 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 5, 4, 4, 4, 4, 4, 2, 2, 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] [2021-11-20 06:41:02,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-20 06:41:02,872 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 06:41:02,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:41:02,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1579239483, now seen corresponding path program 1 times [2021-11-20 06:41:02,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:41:02,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154512518] [2021-11-20 06:41:02,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:41:02,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:41:03,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:03,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:41:03,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:03,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:03,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:03,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 06:41:03,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:03,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:03,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:03,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:41:03,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:03,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:03,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:03,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 06:41:03,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:03,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:03,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:03,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 06:41:03,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:03,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:03,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:03,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 06:41:03,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:03,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:03,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:03,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-20 06:41:03,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:03,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:03,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:03,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 06:41:03,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:03,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:03,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:03,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-20 06:41:03,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:03,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:03,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:03,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 06:41:03,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:03,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:03,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:03,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 06:41:03,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:03,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:03,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:03,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 06:41:03,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:03,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:03,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:03,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-20 06:41:03,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:03,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:03,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:03,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-20 06:41:03,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:03,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-20 06:41:03,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:03,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 06:41:03,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:03,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-20 06:41:03,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:03,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-20 06:41:03,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:03,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:03,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:03,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-20 06:41:03,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:03,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-11-20 06:41:03,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:03,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-11-20 06:41:03,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:03,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-20 06:41:03,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:03,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-20 06:41:03,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:03,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-11-20 06:41:03,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:03,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-11-20 06:41:03,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:03,937 INFO L134 CoverageAnalysis]: Checked inductivity of 942 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 934 trivial. 0 not checked. [2021-11-20 06:41:03,937 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:41:03,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154512518] [2021-11-20 06:41:03,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154512518] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:41:03,938 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:41:03,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 06:41:03,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422486714] [2021-11-20 06:41:03,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:41:03,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:41:03,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:41:03,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:41:03,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:41:03,941 INFO L87 Difference]: Start difference. First operand 41849 states and 56842 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-20 06:41:06,013 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:41:18,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:41:18,973 INFO L93 Difference]: Finished difference Result 42958 states and 58597 transitions. [2021-11-20 06:41:18,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 06:41:18,974 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 247 [2021-11-20 06:41:18,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:41:19,198 INFO L225 Difference]: With dead ends: 42958 [2021-11-20 06:41:19,199 INFO L226 Difference]: Without dead ends: 42956 [2021-11-20 06:41:19,211 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-20 06:41:19,212 INFO L933 BasicCegarLoop]: 2389 mSDtfsCounter, 2691 mSDsluCounter, 4157 mSDsCounter, 0 mSdLazyCounter, 2485 mSolverCounterSat, 1193 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2923 SdHoareTripleChecker+Valid, 6546 SdHoareTripleChecker+Invalid, 3679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1193 IncrementalHoareTripleChecker+Valid, 2485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2021-11-20 06:41:19,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2923 Valid, 6546 Invalid, 3679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1193 Valid, 2485 Invalid, 1 Unknown, 0 Unchecked, 12.7s Time] [2021-11-20 06:41:19,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42956 states. [2021-11-20 06:41:21,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42956 to 41853. [2021-11-20 06:41:21,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41853 states, 28820 states have (on average 1.252706453851492) internal successors, (36103), 29592 states have internal predecessors, (36103), 10334 states have call successors, (10334), 2720 states have call predecessors, (10334), 2696 states have return successors, (10408), 10070 states have call predecessors, (10408), 10330 states have call successors, (10408) [2021-11-20 06:41:21,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41853 states to 41853 states and 56845 transitions. [2021-11-20 06:41:21,173 INFO L78 Accepts]: Start accepts. Automaton has 41853 states and 56845 transitions. Word has length 247 [2021-11-20 06:41:21,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:41:21,174 INFO L470 AbstractCegarLoop]: Abstraction has 41853 states and 56845 transitions. [2021-11-20 06:41:21,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-20 06:41:21,175 INFO L276 IsEmpty]: Start isEmpty. Operand 41853 states and 56845 transitions. [2021-11-20 06:41:21,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2021-11-20 06:41:21,182 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:41:21,183 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 6, 5, 5, 4, 4, 4, 2, 2, 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] [2021-11-20 06:41:21,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-20 06:41:21,183 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 06:41:21,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:41:21,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1089462651, now seen corresponding path program 1 times [2021-11-20 06:41:21,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:41:21,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721244546] [2021-11-20 06:41:21,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:41:21,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:41:21,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:21,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:41:21,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:21,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:21,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:21,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 06:41:21,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:21,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:21,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:21,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:41:21,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:21,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:21,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:21,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 06:41:21,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:21,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:21,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:21,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 06:41:21,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:21,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:21,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:21,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 06:41:21,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:21,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:21,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:21,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-20 06:41:21,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:21,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:21,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:21,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 06:41:21,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:21,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:21,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:21,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-20 06:41:21,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:21,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:21,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:21,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 06:41:21,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:21,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:21,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:21,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 06:41:22,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:22,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:22,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:22,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 06:41:22,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:22,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:22,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:22,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-20 06:41:22,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:22,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:22,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:22,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-20 06:41:22,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:22,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-20 06:41:22,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:22,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 06:41:22,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:22,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-20 06:41:22,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:22,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-20 06:41:22,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:22,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:22,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:22,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-20 06:41:22,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:22,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-11-20 06:41:22,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:22,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-11-20 06:41:22,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:22,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-20 06:41:22,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:22,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-20 06:41:22,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:22,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-11-20 06:41:22,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:22,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-11-20 06:41:22,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:22,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-11-20 06:41:22,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:22,151 INFO L134 CoverageAnalysis]: Checked inductivity of 960 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 950 trivial. 0 not checked. [2021-11-20 06:41:22,151 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:41:22,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721244546] [2021-11-20 06:41:22,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721244546] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:41:22,151 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:41:22,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 06:41:22,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468135005] [2021-11-20 06:41:22,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:41:22,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:41:22,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:41:22,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:41:22,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:41:22,153 INFO L87 Difference]: Start difference. First operand 41853 states and 56845 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-20 06:41:24,220 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:41:37,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:41:37,209 INFO L93 Difference]: Finished difference Result 42962 states and 58600 transitions. [2021-11-20 06:41:37,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 06:41:37,209 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 252 [2021-11-20 06:41:37,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:41:37,325 INFO L225 Difference]: With dead ends: 42962 [2021-11-20 06:41:37,325 INFO L226 Difference]: Without dead ends: 42960 [2021-11-20 06:41:37,338 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-20 06:41:37,339 INFO L933 BasicCegarLoop]: 2393 mSDtfsCounter, 2687 mSDsluCounter, 4164 mSDsCounter, 0 mSdLazyCounter, 2485 mSolverCounterSat, 1190 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2920 SdHoareTripleChecker+Valid, 6557 SdHoareTripleChecker+Invalid, 3676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1190 IncrementalHoareTripleChecker+Valid, 2485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2021-11-20 06:41:37,339 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2920 Valid, 6557 Invalid, 3676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1190 Valid, 2485 Invalid, 1 Unknown, 0 Unchecked, 12.7s Time] [2021-11-20 06:41:37,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42960 states. [2021-11-20 06:41:39,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42960 to 41857. [2021-11-20 06:41:39,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41857 states, 28823 states have (on average 1.2526801512680845) internal successors, (36106), 29595 states have internal predecessors, (36106), 10334 states have call successors, (10334), 2721 states have call predecessors, (10334), 2697 states have return successors, (10408), 10070 states have call predecessors, (10408), 10330 states have call successors, (10408) [2021-11-20 06:41:39,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41857 states to 41857 states and 56848 transitions. [2021-11-20 06:41:39,451 INFO L78 Accepts]: Start accepts. Automaton has 41857 states and 56848 transitions. Word has length 252 [2021-11-20 06:41:39,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:41:39,452 INFO L470 AbstractCegarLoop]: Abstraction has 41857 states and 56848 transitions. [2021-11-20 06:41:39,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-20 06:41:39,452 INFO L276 IsEmpty]: Start isEmpty. Operand 41857 states and 56848 transitions. [2021-11-20 06:41:39,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2021-11-20 06:41:39,463 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:41:39,463 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 7, 6, 6, 4, 4, 4, 2, 2, 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] [2021-11-20 06:41:39,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-20 06:41:39,464 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 06:41:39,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:41:39,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1847627451, now seen corresponding path program 1 times [2021-11-20 06:41:39,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:41:39,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049815464] [2021-11-20 06:41:39,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:41:39,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:41:39,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:39,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:41:39,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:39,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:39,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:39,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 06:41:39,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:39,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:39,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:39,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:41:39,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:39,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:39,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:39,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 06:41:39,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:39,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:39,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:39,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 06:41:39,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:40,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:40,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:40,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 06:41:40,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:40,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:40,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:40,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-20 06:41:40,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:40,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:40,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:40,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 06:41:40,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:40,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:40,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:40,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-20 06:41:40,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:40,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:40,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:40,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 06:41:40,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:40,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:40,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:40,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 06:41:40,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:40,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:40,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:40,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 06:41:40,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:40,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:40,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:40,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-20 06:41:40,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:40,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:40,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:40,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-20 06:41:40,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:40,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-20 06:41:40,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:40,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 06:41:40,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:40,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-20 06:41:40,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:40,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-20 06:41:40,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:40,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:40,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:40,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-20 06:41:40,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:40,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-11-20 06:41:40,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:40,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-11-20 06:41:40,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:40,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-20 06:41:40,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:40,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-20 06:41:40,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:40,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-11-20 06:41:40,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:40,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-11-20 06:41:40,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:40,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-11-20 06:41:40,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:40,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-20 06:41:40,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:40,522 INFO L134 CoverageAnalysis]: Checked inductivity of 982 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 970 trivial. 0 not checked. [2021-11-20 06:41:40,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:41:40,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049815464] [2021-11-20 06:41:40,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049815464] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:41:40,523 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:41:40,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 06:41:40,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609839977] [2021-11-20 06:41:40,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:41:40,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:41:40,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:41:40,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:41:40,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:41:40,525 INFO L87 Difference]: Start difference. First operand 41857 states and 56848 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-20 06:41:42,597 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:41:56,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:41:56,641 INFO L93 Difference]: Finished difference Result 45335 states and 60980 transitions. [2021-11-20 06:41:56,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 06:41:56,642 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 257 [2021-11-20 06:41:56,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:41:56,772 INFO L225 Difference]: With dead ends: 45335 [2021-11-20 06:41:56,773 INFO L226 Difference]: Without dead ends: 45333 [2021-11-20 06:41:56,789 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-20 06:41:56,790 INFO L933 BasicCegarLoop]: 2397 mSDtfsCounter, 2676 mSDsluCounter, 4202 mSDsCounter, 0 mSdLazyCounter, 2665 mSolverCounterSat, 1154 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2922 SdHoareTripleChecker+Valid, 6599 SdHoareTripleChecker+Invalid, 3820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1154 IncrementalHoareTripleChecker+Valid, 2665 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2021-11-20 06:41:56,790 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2922 Valid, 6599 Invalid, 3820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1154 Valid, 2665 Invalid, 1 Unknown, 0 Unchecked, 13.5s Time] [2021-11-20 06:41:56,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45333 states. [2021-11-20 06:41:58,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45333 to 44228. [2021-11-20 06:41:58,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44228 states, 30449 states have (on average 1.2453939374035272) internal successors, (37921), 31251 states have internal predecessors, (37921), 10616 states have call successors, (10616), 3184 states have call predecessors, (10616), 3160 states have return successors, (10690), 10352 states have call predecessors, (10690), 10612 states have call successors, (10690) [2021-11-20 06:41:59,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44228 states to 44228 states and 59227 transitions. [2021-11-20 06:41:59,128 INFO L78 Accepts]: Start accepts. Automaton has 44228 states and 59227 transitions. Word has length 257 [2021-11-20 06:41:59,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:41:59,129 INFO L470 AbstractCegarLoop]: Abstraction has 44228 states and 59227 transitions. [2021-11-20 06:41:59,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-20 06:41:59,129 INFO L276 IsEmpty]: Start isEmpty. Operand 44228 states and 59227 transitions. [2021-11-20 06:41:59,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2021-11-20 06:41:59,141 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:41:59,142 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 8, 7, 7, 4, 4, 4, 2, 2, 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] [2021-11-20 06:41:59,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-20 06:41:59,142 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 06:41:59,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:41:59,143 INFO L85 PathProgramCache]: Analyzing trace with hash -601798789, now seen corresponding path program 1 times [2021-11-20 06:41:59,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:41:59,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118007379] [2021-11-20 06:41:59,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:41:59,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:41:59,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:59,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:41:59,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:59,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:59,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:59,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 06:41:59,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:59,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:59,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:59,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:41:59,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:59,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:59,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:59,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 06:41:59,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:59,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:59,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:59,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 06:41:59,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:59,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:59,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:59,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 06:41:59,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:59,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:59,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:59,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-20 06:41:59,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:59,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:59,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:59,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 06:41:59,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:59,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:59,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:59,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-20 06:41:59,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:59,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:41:59,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:41:59,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 06:41:59,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:00,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:42:00,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:00,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 06:42:00,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:00,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:42:00,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:00,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 06:42:00,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:00,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:42:00,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:00,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-20 06:42:00,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:00,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:42:00,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:00,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-20 06:42:00,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:00,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-20 06:42:00,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:00,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 06:42:00,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:00,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-20 06:42:00,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:00,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-20 06:42:00,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:00,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:42:00,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:00,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-20 06:42:00,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:00,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-11-20 06:42:00,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:00,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-11-20 06:42:00,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:00,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-20 06:42:00,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:00,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-20 06:42:00,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:00,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-11-20 06:42:00,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:00,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-11-20 06:42:00,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:00,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-11-20 06:42:00,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:00,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-20 06:42:00,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:00,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-11-20 06:42:00,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:00,182 INFO L134 CoverageAnalysis]: Checked inductivity of 1008 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 994 trivial. 0 not checked. [2021-11-20 06:42:00,183 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:42:00,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118007379] [2021-11-20 06:42:00,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118007379] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:42:00,183 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:42:00,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 06:42:00,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367627594] [2021-11-20 06:42:00,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:42:00,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:42:00,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:42:00,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:42:00,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:42:00,186 INFO L87 Difference]: Start difference. First operand 44228 states and 59227 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (31), 4 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-20 06:42:02,245 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:42:15,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:42:15,645 INFO L93 Difference]: Finished difference Result 45337 states and 60982 transitions. [2021-11-20 06:42:15,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 06:42:15,646 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (31), 4 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 262 [2021-11-20 06:42:15,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:42:15,776 INFO L225 Difference]: With dead ends: 45337 [2021-11-20 06:42:15,776 INFO L226 Difference]: Without dead ends: 45335 [2021-11-20 06:42:15,789 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-20 06:42:15,790 INFO L933 BasicCegarLoop]: 2392 mSDtfsCounter, 2689 mSDsluCounter, 4163 mSDsCounter, 0 mSdLazyCounter, 2485 mSolverCounterSat, 1188 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2921 SdHoareTripleChecker+Valid, 6555 SdHoareTripleChecker+Invalid, 3674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1188 IncrementalHoareTripleChecker+Valid, 2485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2021-11-20 06:42:15,790 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2921 Valid, 6555 Invalid, 3674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1188 Valid, 2485 Invalid, 1 Unknown, 0 Unchecked, 12.7s Time] [2021-11-20 06:42:15,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45335 states. [2021-11-20 06:42:18,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45335 to 44232. [2021-11-20 06:42:18,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44232 states, 30452 states have (on average 1.245369762248785) internal successors, (37924), 31254 states have internal predecessors, (37924), 10616 states have call successors, (10616), 3185 states have call predecessors, (10616), 3161 states have return successors, (10690), 10352 states have call predecessors, (10690), 10612 states have call successors, (10690) [2021-11-20 06:42:18,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44232 states to 44232 states and 59230 transitions. [2021-11-20 06:42:18,308 INFO L78 Accepts]: Start accepts. Automaton has 44232 states and 59230 transitions. Word has length 262 [2021-11-20 06:42:18,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:42:18,308 INFO L470 AbstractCegarLoop]: Abstraction has 44232 states and 59230 transitions. [2021-11-20 06:42:18,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (31), 4 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-20 06:42:18,309 INFO L276 IsEmpty]: Start isEmpty. Operand 44232 states and 59230 transitions. [2021-11-20 06:42:18,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2021-11-20 06:42:18,325 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:42:18,326 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 9, 8, 8, 4, 4, 4, 2, 2, 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] [2021-11-20 06:42:18,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-20 06:42:18,326 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 06:42:18,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:42:18,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1540881093, now seen corresponding path program 1 times [2021-11-20 06:42:18,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:42:18,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994562510] [2021-11-20 06:42:18,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:42:18,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:42:18,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:19,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:42:19,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:19,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:42:19,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:19,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 06:42:19,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:19,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:42:19,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:19,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:42:19,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:19,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:42:19,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:19,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 06:42:19,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:19,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:42:19,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:19,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 06:42:19,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:19,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:42:19,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:19,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 06:42:19,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:19,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:42:19,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:19,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-20 06:42:19,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:19,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:42:19,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:19,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 06:42:19,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:19,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:42:19,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:19,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-20 06:42:19,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:19,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:42:19,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:19,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 06:42:19,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:19,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:42:19,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:19,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 06:42:19,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:19,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:42:19,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:19,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 06:42:19,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:19,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:42:19,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:19,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-20 06:42:19,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:19,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:42:19,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:19,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-20 06:42:19,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:19,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-20 06:42:19,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:19,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 06:42:19,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:19,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-20 06:42:19,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:19,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-20 06:42:19,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:19,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:42:19,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:19,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-20 06:42:19,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:19,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-11-20 06:42:19,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:19,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-11-20 06:42:19,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:19,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-20 06:42:19,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:19,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-20 06:42:19,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:19,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-11-20 06:42:19,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:19,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-11-20 06:42:19,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:19,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-11-20 06:42:19,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:19,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-20 06:42:19,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:19,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-11-20 06:42:19,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:19,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-20 06:42:19,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:19,408 INFO L134 CoverageAnalysis]: Checked inductivity of 1038 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1022 trivial. 0 not checked. [2021-11-20 06:42:19,408 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:42:19,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994562510] [2021-11-20 06:42:19,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994562510] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:42:19,409 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:42:19,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 06:42:19,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669177625] [2021-11-20 06:42:19,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:42:19,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:42:19,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:42:19,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:42:19,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:42:19,411 INFO L87 Difference]: Start difference. First operand 44232 states and 59230 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-20 06:42:21,484 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:42:34,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:42:34,954 INFO L93 Difference]: Finished difference Result 45341 states and 60985 transitions. [2021-11-20 06:42:34,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 06:42:34,955 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 267 [2021-11-20 06:42:34,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:42:35,095 INFO L225 Difference]: With dead ends: 45341 [2021-11-20 06:42:35,095 INFO L226 Difference]: Without dead ends: 45339 [2021-11-20 06:42:35,107 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-20 06:42:35,108 INFO L933 BasicCegarLoop]: 2387 mSDtfsCounter, 2691 mSDsluCounter, 4152 mSDsCounter, 0 mSdLazyCounter, 2485 mSolverCounterSat, 1191 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2924 SdHoareTripleChecker+Valid, 6539 SdHoareTripleChecker+Invalid, 3677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1191 IncrementalHoareTripleChecker+Valid, 2485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2021-11-20 06:42:35,109 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2924 Valid, 6539 Invalid, 3677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1191 Valid, 2485 Invalid, 1 Unknown, 0 Unchecked, 12.9s Time] [2021-11-20 06:42:35,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45339 states. [2021-11-20 06:42:37,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45339 to 44236. [2021-11-20 06:42:37,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44236 states, 30455 states have (on average 1.245345591856838) internal successors, (37927), 31257 states have internal predecessors, (37927), 10616 states have call successors, (10616), 3186 states have call predecessors, (10616), 3162 states have return successors, (10690), 10352 states have call predecessors, (10690), 10612 states have call successors, (10690) [2021-11-20 06:42:37,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44236 states to 44236 states and 59233 transitions. [2021-11-20 06:42:37,544 INFO L78 Accepts]: Start accepts. Automaton has 44236 states and 59233 transitions. Word has length 267 [2021-11-20 06:42:37,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:42:37,545 INFO L470 AbstractCegarLoop]: Abstraction has 44236 states and 59233 transitions. [2021-11-20 06:42:37,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-20 06:42:37,545 INFO L276 IsEmpty]: Start isEmpty. Operand 44236 states and 59233 transitions. [2021-11-20 06:42:37,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2021-11-20 06:42:37,555 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:42:37,555 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 10, 9, 9, 4, 4, 4, 2, 2, 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] [2021-11-20 06:42:37,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-20 06:42:37,555 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 06:42:37,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:42:37,556 INFO L85 PathProgramCache]: Analyzing trace with hash 800906619, now seen corresponding path program 1 times [2021-11-20 06:42:37,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:42:37,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913048475] [2021-11-20 06:42:37,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:42:37,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:42:37,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:38,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:42:38,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:38,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:42:38,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:38,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 06:42:38,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:38,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:42:38,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:38,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:42:38,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:38,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:42:38,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:38,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 06:42:38,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:38,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:42:38,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:38,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 06:42:38,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:38,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:42:38,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:38,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 06:42:38,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:38,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:42:38,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:38,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-20 06:42:38,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:38,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:42:38,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:38,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 06:42:38,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:38,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:42:38,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:38,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-20 06:42:38,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:38,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:42:38,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:38,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 06:42:38,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:38,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:42:38,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:38,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 06:42:38,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:38,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:42:38,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:38,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 06:42:38,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:38,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:42:38,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:38,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-20 06:42:38,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:38,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:42:38,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:38,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-20 06:42:38,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:38,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-20 06:42:38,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:38,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 06:42:38,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:38,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-20 06:42:38,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:38,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-20 06:42:38,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:38,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:42:38,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:38,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-20 06:42:38,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:38,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-11-20 06:42:38,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:38,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-11-20 06:42:38,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:38,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-20 06:42:38,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:38,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-20 06:42:38,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:38,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-11-20 06:42:38,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:38,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-11-20 06:42:38,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:38,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-11-20 06:42:38,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:38,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-20 06:42:38,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:38,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-11-20 06:42:38,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:38,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-20 06:42:38,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:38,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2021-11-20 06:42:38,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:38,329 INFO L134 CoverageAnalysis]: Checked inductivity of 1072 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 1054 trivial. 0 not checked. [2021-11-20 06:42:38,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:42:38,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913048475] [2021-11-20 06:42:38,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913048475] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:42:38,334 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:42:38,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 06:42:38,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655069648] [2021-11-20 06:42:38,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:42:38,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:42:38,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:42:38,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:42:38,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:42:38,338 INFO L87 Difference]: Start difference. First operand 44236 states and 59233 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (33), 4 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-20 06:42:40,384 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:42:54,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:42:54,214 INFO L93 Difference]: Finished difference Result 45345 states and 60988 transitions. [2021-11-20 06:42:54,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 06:42:54,215 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (33), 4 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 272 [2021-11-20 06:42:54,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:42:54,340 INFO L225 Difference]: With dead ends: 45345 [2021-11-20 06:42:54,341 INFO L226 Difference]: Without dead ends: 45343 [2021-11-20 06:42:54,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-20 06:42:54,354 INFO L933 BasicCegarLoop]: 2392 mSDtfsCounter, 2688 mSDsluCounter, 4163 mSDsCounter, 0 mSdLazyCounter, 2485 mSolverCounterSat, 1188 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2920 SdHoareTripleChecker+Valid, 6555 SdHoareTripleChecker+Invalid, 3674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1188 IncrementalHoareTripleChecker+Valid, 2485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:42:54,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2920 Valid, 6555 Invalid, 3674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1188 Valid, 2485 Invalid, 1 Unknown, 0 Unchecked, 13.1s Time] [2021-11-20 06:42:54,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45343 states. [2021-11-20 06:42:56,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45343 to 44240. [2021-11-20 06:42:56,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44240 states, 30458 states have (on average 1.2453214262262788) internal successors, (37930), 31260 states have internal predecessors, (37930), 10616 states have call successors, (10616), 3187 states have call predecessors, (10616), 3163 states have return successors, (10690), 10352 states have call predecessors, (10690), 10612 states have call successors, (10690) [2021-11-20 06:42:56,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44240 states to 44240 states and 59236 transitions. [2021-11-20 06:42:56,972 INFO L78 Accepts]: Start accepts. Automaton has 44240 states and 59236 transitions. Word has length 272 [2021-11-20 06:42:56,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:42:56,973 INFO L470 AbstractCegarLoop]: Abstraction has 44240 states and 59236 transitions. [2021-11-20 06:42:56,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (33), 4 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-20 06:42:56,974 INFO L276 IsEmpty]: Start isEmpty. Operand 44240 states and 59236 transitions. [2021-11-20 06:42:56,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2021-11-20 06:42:56,989 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:42:56,989 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 13, 13, 13, 13, 13, 13, 11, 10, 10, 6, 6, 6, 3, 3, 3, 3, 3, 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] [2021-11-20 06:42:56,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-20 06:42:56,990 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 06:42:56,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:42:56,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1349987293, now seen corresponding path program 1 times [2021-11-20 06:42:56,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:42:56,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298701792] [2021-11-20 06:42:56,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:42:56,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:42:57,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:42:57,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:42:57,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 06:42:57,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:42:57,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:42:57,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:42:57,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 06:42:57,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:42:57,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 06:42:57,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:42:57,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 06:42:57,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:42:57,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-20 06:42:57,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:42:57,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 06:42:57,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:42:57,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-20 06:42:57,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:42:57,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 06:42:57,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:42:57,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 06:42:57,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:42:57,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 06:42:57,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:42:57,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-20 06:42:57,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:42:57,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-20 06:42:57,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-20 06:42:57,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 06:42:57,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-20 06:42:57,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-20 06:42:57,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:42:57,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-20 06:42:57,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-11-20 06:42:57,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-11-20 06:42:57,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-20 06:42:57,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-20 06:42:57,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-20 06:42:57,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-11-20 06:42:57,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:42:57,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-20 06:42:57,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2021-11-20 06:42:57,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-11-20 06:42:57,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-20 06:42:57,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-20 06:42:57,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-11-20 06:42:57,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-11-20 06:42:57,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2021-11-20 06:42:57,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-11-20 06:42:57,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-11-20 06:42:57,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,910 INFO L134 CoverageAnalysis]: Checked inductivity of 1261 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 1230 trivial. 0 not checked. [2021-11-20 06:42:57,910 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:42:57,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298701792] [2021-11-20 06:42:57,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298701792] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:42:57,911 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:42:57,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 06:42:57,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053643322] [2021-11-20 06:42:57,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:42:57,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 06:42:57,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:42:57,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 06:42:57,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:42:57,913 INFO L87 Difference]: Start difference. First operand 44240 states and 59236 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (39), 4 states have call predecessors, (39), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2021-11-20 06:42:59,982 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:43:02,237 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:43:04,486 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:43:25,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:43:25,431 INFO L93 Difference]: Finished difference Result 103962 states and 139581 transitions. [2021-11-20 06:43:25,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 06:43:25,432 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (39), 4 states have call predecessors, (39), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 312 [2021-11-20 06:43:25,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:43:25,667 INFO L225 Difference]: With dead ends: 103962 [2021-11-20 06:43:25,667 INFO L226 Difference]: Without dead ends: 60142 [2021-11-20 06:43:25,770 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:43:25,771 INFO L933 BasicCegarLoop]: 4510 mSDtfsCounter, 3495 mSDsluCounter, 3970 mSDsCounter, 0 mSdLazyCounter, 3215 mSolverCounterSat, 2628 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3746 SdHoareTripleChecker+Valid, 8480 SdHoareTripleChecker+Invalid, 5846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2628 IncrementalHoareTripleChecker+Valid, 3215 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:43:25,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3746 Valid, 8480 Invalid, 5846 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2628 Valid, 3215 Invalid, 3 Unknown, 0 Unchecked, 23.4s Time] [2021-11-20 06:43:25,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60142 states. [2021-11-20 06:43:28,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60142 to 58618. [2021-11-20 06:43:28,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58618 states, 40362 states have (on average 1.245354541400327) internal successors, (50265), 41415 states have internal predecessors, (50265), 14059 states have call successors, (14059), 4231 states have call predecessors, (14059), 4194 states have return successors, (14159), 13717 states have call predecessors, (14159), 14055 states have call successors, (14159) [2021-11-20 06:43:29,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58618 states to 58618 states and 78483 transitions. [2021-11-20 06:43:29,177 INFO L78 Accepts]: Start accepts. Automaton has 58618 states and 78483 transitions. Word has length 312 [2021-11-20 06:43:29,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:43:29,178 INFO L470 AbstractCegarLoop]: Abstraction has 58618 states and 78483 transitions. [2021-11-20 06:43:29,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (39), 4 states have call predecessors, (39), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2021-11-20 06:43:29,178 INFO L276 IsEmpty]: Start isEmpty. Operand 58618 states and 78483 transitions. [2021-11-20 06:43:29,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2021-11-20 06:43:29,189 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:43:29,190 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 13, 13, 13, 13, 13, 13, 11, 10, 10, 6, 6, 6, 3, 3, 3, 3, 3, 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] [2021-11-20 06:43:29,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-20 06:43:29,190 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 06:43:29,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:43:29,190 INFO L85 PathProgramCache]: Analyzing trace with hash 986405217, now seen corresponding path program 1 times [2021-11-20 06:43:29,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:43:29,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471389180] [2021-11-20 06:43:29,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:43:29,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:43:29,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:29,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:43:29,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:29,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:43:29,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:29,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 06:43:29,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:29,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:43:29,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:29,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:43:29,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:29,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:43:29,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:29,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 06:43:29,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:29,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:43:29,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:29,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 06:43:29,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:29,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:43:29,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:29,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 06:43:29,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:29,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:43:29,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:29,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-20 06:43:29,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:29,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:43:29,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:29,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 06:43:29,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:29,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:43:29,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:29,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-20 06:43:29,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:29,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:43:29,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:29,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 06:43:29,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:29,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:43:29,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:29,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 06:43:29,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:29,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:43:29,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:29,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 06:43:29,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:29,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:43:29,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:29,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-20 06:43:29,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:29,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:43:29,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:29,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-20 06:43:29,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:29,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-20 06:43:29,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:29,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 06:43:29,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:29,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-20 06:43:29,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:29,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-20 06:43:29,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:29,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:43:29,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:29,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-20 06:43:29,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:29,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-11-20 06:43:29,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:29,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-11-20 06:43:29,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:29,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-20 06:43:29,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:29,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-20 06:43:29,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:29,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-20 06:43:29,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:30,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-11-20 06:43:30,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:30,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:43:30,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:30,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-20 06:43:30,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:30,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2021-11-20 06:43:30,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:30,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-11-20 06:43:30,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:30,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-20 06:43:30,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:30,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-20 06:43:30,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:30,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-11-20 06:43:30,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:30,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-11-20 06:43:30,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:30,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2021-11-20 06:43:30,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:30,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-11-20 06:43:30,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:30,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-11-20 06:43:30,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:30,087 INFO L134 CoverageAnalysis]: Checked inductivity of 1261 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 1230 trivial. 0 not checked. [2021-11-20 06:43:30,088 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:43:30,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471389180] [2021-11-20 06:43:30,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471389180] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:43:30,088 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:43:30,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 06:43:30,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866461266] [2021-11-20 06:43:30,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:43:30,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 06:43:30,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:43:30,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 06:43:30,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:43:30,091 INFO L87 Difference]: Start difference. First operand 58618 states and 78483 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (39), 4 states have call predecessors, (39), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2021-11-20 06:43:32,141 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:43:34,389 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:43:36,641 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:43:57,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:43:57,977 INFO L93 Difference]: Finished difference Result 132973 states and 178551 transitions. [2021-11-20 06:43:57,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 06:43:57,978 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (39), 4 states have call predecessors, (39), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 312 [2021-11-20 06:43:57,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:43:58,415 INFO L225 Difference]: With dead ends: 132973 [2021-11-20 06:43:58,415 INFO L226 Difference]: Without dead ends: 74775 [2021-11-20 06:43:58,532 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-20 06:43:58,532 INFO L933 BasicCegarLoop]: 4492 mSDtfsCounter, 3459 mSDsluCounter, 3971 mSDsCounter, 0 mSdLazyCounter, 3199 mSolverCounterSat, 2575 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3709 SdHoareTripleChecker+Valid, 8463 SdHoareTripleChecker+Invalid, 5777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2575 IncrementalHoareTripleChecker+Valid, 3199 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:43:58,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3709 Valid, 8463 Invalid, 5777 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2575 Valid, 3199 Invalid, 3 Unknown, 0 Unchecked, 23.0s Time] [2021-11-20 06:43:58,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74775 states. [2021-11-20 06:44:02,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74775 to 72952. [2021-11-20 06:44:02,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72952 states, 50238 states have (on average 1.245511365898324) internal successors, (62572), 51542 states have internal predecessors, (62572), 17490 states have call successors, (17490), 5263 states have call predecessors, (17490), 5221 states have return successors, (17616), 17078 states have call predecessors, (17616), 17486 states have call successors, (17616) [2021-11-20 06:44:03,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72952 states to 72952 states and 97678 transitions. [2021-11-20 06:44:03,092 INFO L78 Accepts]: Start accepts. Automaton has 72952 states and 97678 transitions. Word has length 312 [2021-11-20 06:44:03,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:44:03,092 INFO L470 AbstractCegarLoop]: Abstraction has 72952 states and 97678 transitions. [2021-11-20 06:44:03,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (39), 4 states have call predecessors, (39), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2021-11-20 06:44:03,093 INFO L276 IsEmpty]: Start isEmpty. Operand 72952 states and 97678 transitions. [2021-11-20 06:44:03,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2021-11-20 06:44:03,107 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:44:03,107 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 11, 10, 10, 4, 4, 4, 2, 2, 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] [2021-11-20 06:44:03,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-20 06:44:03,108 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 06:44:03,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:44:03,108 INFO L85 PathProgramCache]: Analyzing trace with hash 138695749, now seen corresponding path program 1 times [2021-11-20 06:44:03,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:44:03,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851184003] [2021-11-20 06:44:03,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:44:03,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:44:03,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:03,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:44:03,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:03,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:44:03,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:03,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 06:44:03,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:03,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:44:03,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:03,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:44:03,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:03,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:44:03,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:03,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 06:44:03,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:03,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:44:03,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:03,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 06:44:03,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:03,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:44:03,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:03,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 06:44:03,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:03,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:44:03,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:03,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-20 06:44:03,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:03,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:44:03,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:03,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 06:44:03,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:03,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:44:03,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:03,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-20 06:44:03,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:03,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:44:03,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:03,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 06:44:03,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:03,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:44:03,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:03,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 06:44:03,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:03,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:44:03,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:03,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 06:44:03,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:03,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:44:03,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:03,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-20 06:44:03,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:03,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:44:03,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:03,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-20 06:44:03,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:03,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-20 06:44:03,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:03,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 06:44:03,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:03,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-20 06:44:03,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:03,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-20 06:44:03,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:03,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:44:03,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:03,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-20 06:44:03,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:03,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-11-20 06:44:03,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:03,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-11-20 06:44:03,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:03,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-20 06:44:03,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:03,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-20 06:44:03,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:03,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-11-20 06:44:03,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:03,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-11-20 06:44:03,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:03,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-11-20 06:44:03,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:03,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-20 06:44:03,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:03,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-11-20 06:44:03,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:03,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-20 06:44:03,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:03,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2021-11-20 06:44:03,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:03,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-11-20 06:44:03,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:04,005 INFO L134 CoverageAnalysis]: Checked inductivity of 1110 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 1090 trivial. 0 not checked. [2021-11-20 06:44:04,005 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:44:04,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851184003] [2021-11-20 06:44:04,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851184003] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:44:04,007 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:44:04,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 06:44:04,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515956026] [2021-11-20 06:44:04,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:44:04,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:44:04,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:44:04,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:44:04,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:44:04,011 INFO L87 Difference]: Start difference. First operand 72952 states and 97678 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (34), 4 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-20 06:44:06,076 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:44:21,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:44:21,266 INFO L93 Difference]: Finished difference Result 74777 states and 100561 transitions. [2021-11-20 06:44:21,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 06:44:21,266 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (34), 4 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 277 [2021-11-20 06:44:21,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:44:21,653 INFO L225 Difference]: With dead ends: 74777 [2021-11-20 06:44:21,654 INFO L226 Difference]: Without dead ends: 74775 [2021-11-20 06:44:21,677 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-20 06:44:21,678 INFO L933 BasicCegarLoop]: 2389 mSDtfsCounter, 2691 mSDsluCounter, 4157 mSDsCounter, 0 mSdLazyCounter, 2485 mSolverCounterSat, 1187 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2923 SdHoareTripleChecker+Valid, 6546 SdHoareTripleChecker+Invalid, 3673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1187 IncrementalHoareTripleChecker+Valid, 2485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2021-11-20 06:44:21,678 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2923 Valid, 6546 Invalid, 3673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1187 Valid, 2485 Invalid, 1 Unknown, 0 Unchecked, 12.8s Time] [2021-11-20 06:44:21,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74775 states.