./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-wireless-cw1200-cw1200_wlan_spi.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd04486b-fe22-4047-9954-efddb2d90764/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd04486b-fe22-4047-9954-efddb2d90764/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd04486b-fe22-4047-9954-efddb2d90764/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd04486b-fe22-4047-9954-efddb2d90764/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd04486b-fe22-4047-9954-efddb2d90764/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd04486b-fe22-4047-9954-efddb2d90764/bin/uautomizer-ug76WZFUDN --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 0cef07d7f0384d28cd6187dbf399ce04548d86cf40895859810995ce7f7f2ba4 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 12:07:48,721 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:07:48,724 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:07:48,763 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:07:48,764 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:07:48,768 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:07:48,770 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:07:48,773 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:07:48,775 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:07:48,780 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:07:48,782 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:07:48,784 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:07:48,784 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:07:48,787 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:07:48,788 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:07:48,792 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:07:48,793 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:07:48,795 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:07:48,796 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:07:48,802 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:07:48,804 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:07:48,806 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:07:48,807 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:07:48,808 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:07:48,816 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:07:48,817 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:07:48,818 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:07:48,819 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:07:48,820 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:07:48,822 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:07:48,822 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:07:48,823 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:07:48,825 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:07:48,826 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:07:48,828 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:07:48,828 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:07:48,829 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:07:48,829 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:07:48,829 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:07:48,830 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:07:48,831 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:07:48,831 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd04486b-fe22-4047-9954-efddb2d90764/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 12:07:48,865 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:07:48,866 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:07:48,866 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:07:48,867 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:07:48,867 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:07:48,868 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:07:48,868 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:07:48,869 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:07:48,869 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:07:48,869 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:07:48,870 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:07:48,871 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:07:48,871 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:07:48,871 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:07:48,871 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:07:48,872 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:07:48,872 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:07:48,872 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:07:48,873 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:07:48,873 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:07:48,873 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:07:48,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:07:48,874 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:07:48,874 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:07:48,874 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:07:48,875 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:07:48,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:07:48,875 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:07:48,876 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:07:48,876 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:07:48,876 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_fd04486b-fe22-4047-9954-efddb2d90764/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd04486b-fe22-4047-9954-efddb2d90764/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cef07d7f0384d28cd6187dbf399ce04548d86cf40895859810995ce7f7f2ba4 [2022-11-20 12:07:49,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:07:49,234 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:07:49,237 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:07:49,239 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:07:49,239 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:07:49,241 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd04486b-fe22-4047-9954-efddb2d90764/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i [2022-11-20 12:07:52,232 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:07:52,895 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:07:52,896 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd04486b-fe22-4047-9954-efddb2d90764/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i [2022-11-20 12:07:52,943 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd04486b-fe22-4047-9954-efddb2d90764/bin/uautomizer-ug76WZFUDN/data/70f191298/cdae157cca844cfba7dd35cd791c79dd/FLAG6a7eec114 [2022-11-20 12:07:52,958 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd04486b-fe22-4047-9954-efddb2d90764/bin/uautomizer-ug76WZFUDN/data/70f191298/cdae157cca844cfba7dd35cd791c79dd [2022-11-20 12:07:52,961 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:07:52,963 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:07:52,965 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:07:52,965 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:07:52,969 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:07:52,970 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:07:52" (1/1) ... [2022-11-20 12:07:52,971 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b15750c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:07:52, skipping insertion in model container [2022-11-20 12:07:52,971 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:07:52" (1/1) ... [2022-11-20 12:07:52,979 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:07:53,173 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:07:55,298 WARN L237 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_fd04486b-fe22-4047-9954-efddb2d90764/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292189,292202] [2022-11-20 12:07:55,302 WARN L237 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_fd04486b-fe22-4047-9954-efddb2d90764/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292358,292371] [2022-11-20 12:07:55,303 WARN L237 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_fd04486b-fe22-4047-9954-efddb2d90764/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292525,292538] [2022-11-20 12:07:55,304 WARN L237 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_fd04486b-fe22-4047-9954-efddb2d90764/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292693,292706] [2022-11-20 12:07:55,309 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:07:55,325 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:07:55,701 WARN L237 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_fd04486b-fe22-4047-9954-efddb2d90764/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292189,292202] [2022-11-20 12:07:55,703 WARN L237 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_fd04486b-fe22-4047-9954-efddb2d90764/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292358,292371] [2022-11-20 12:07:55,703 WARN L237 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_fd04486b-fe22-4047-9954-efddb2d90764/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292525,292538] [2022-11-20 12:07:55,704 WARN L237 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_fd04486b-fe22-4047-9954-efddb2d90764/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292693,292706] [2022-11-20 12:07:55,707 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:07:55,858 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:07:55,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:07:55 WrapperNode [2022-11-20 12:07:55,859 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:07:55,860 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:07:55,860 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:07:55,860 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:07:55,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:07:55" (1/1) ... [2022-11-20 12:07:55,953 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:07:55" (1/1) ... [2022-11-20 12:07:56,048 INFO L138 Inliner]: procedures = 325, calls = 928, calls flagged for inlining = 152, calls inlined = 139, statements flattened = 2697 [2022-11-20 12:07:56,049 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:07:56,050 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:07:56,050 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:07:56,050 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:07:56,059 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:07:55" (1/1) ... [2022-11-20 12:07:56,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:07:55" (1/1) ... [2022-11-20 12:07:56,072 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:07:55" (1/1) ... [2022-11-20 12:07:56,072 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:07:55" (1/1) ... [2022-11-20 12:07:56,183 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:07:55" (1/1) ... [2022-11-20 12:07:56,194 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:07:55" (1/1) ... [2022-11-20 12:07:56,211 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:07:55" (1/1) ... [2022-11-20 12:07:56,221 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:07:55" (1/1) ... [2022-11-20 12:07:56,249 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:07:56,250 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:07:56,250 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:07:56,250 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:07:56,251 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:07:55" (1/1) ... [2022-11-20 12:07:56,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:07:56,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd04486b-fe22-4047-9954-efddb2d90764/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:07:56,280 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd04486b-fe22-4047-9954-efddb2d90764/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:07:56,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd04486b-fe22-4047-9954-efddb2d90764/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:07:56,327 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-20 12:07:56,328 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-20 12:07:56,329 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-20 12:07:56,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 12:07:56,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 12:07:56,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 12:07:56,330 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 12:07:56,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 12:07:56,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 12:07:56,331 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-20 12:07:56,331 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-20 12:07:56,331 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_request [2022-11-20 12:07:56,332 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_request [2022-11-20 12:07:56,332 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2022-11-20 12:07:56,332 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2022-11-20 12:07:56,332 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 12:07:56,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 12:07:56,333 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_irq_unsubscribe [2022-11-20 12:07:56,333 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_irq_unsubscribe [2022-11-20 12:07:56,333 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-20 12:07:56,333 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-20 12:07:56,333 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~bool~0~TO~int [2022-11-20 12:07:56,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~bool~0~TO~int [2022-11-20 12:07:56,334 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_unlock [2022-11-20 12:07:56,334 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_unlock [2022-11-20 12:07:56,334 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 12:07:56,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 12:07:56,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_66 [2022-11-20 12:07:56,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_66 [2022-11-20 12:07:56,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:07:56,336 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_platdata [2022-11-20 12:07:56,337 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_platdata [2022-11-20 12:07:56,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 12:07:56,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-20 12:07:56,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-20 12:07:56,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 12:07:56,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 12:07:56,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_hwbus_priv [2022-11-20 12:07:56,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_hwbus_priv [2022-11-20 12:07:56,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:07:56,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 12:07:56,339 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2022-11-20 12:07:56,339 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2022-11-20 12:07:56,340 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-20 12:07:56,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-20 12:07:56,340 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-20 12:07:56,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-20 12:07:56,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-20 12:07:56,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-20 12:07:56,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-20 12:07:56,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-20 12:07:56,342 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_probe [2022-11-20 12:07:56,342 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_probe [2022-11-20 12:07:56,342 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-20 12:07:56,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-20 12:07:56,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 12:07:56,344 INFO L130 BoogieDeclarations]: Found specification of procedure irq_set_irq_wake [2022-11-20 12:07:56,344 INFO L138 BoogieDeclarations]: Found implementation of procedure irq_set_irq_wake [2022-11-20 12:07:56,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-20 12:07:56,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-20 12:07:56,345 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 12:07:56,345 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 12:07:56,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 12:07:56,345 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_disconnect [2022-11-20 12:07:56,345 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_disconnect [2022-11-20 12:07:56,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 12:07:56,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 12:07:56,346 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_set_value [2022-11-20 12:07:56,346 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_set_value [2022-11-20 12:07:56,346 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_direction_output [2022-11-20 12:07:56,346 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_direction_output [2022-11-20 12:07:56,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 12:07:56,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 12:07:56,347 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_off [2022-11-20 12:07:56,347 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_off [2022-11-20 12:07:56,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 12:07:56,348 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-20 12:07:56,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-20 12:07:56,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-20 12:07:56,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-20 12:07:56,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2022-11-20 12:07:56,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2022-11-20 12:07:56,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:07:56,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 12:07:56,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 12:07:56,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 12:07:56,351 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-20 12:07:56,351 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2022-11-20 12:07:56,351 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2022-11-20 12:07:56,351 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 12:07:56,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 12:07:56,352 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-20 12:07:56,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-20 12:07:56,352 INFO L130 BoogieDeclarations]: Found specification of procedure spi_get_drvdata [2022-11-20 12:07:56,352 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_get_drvdata [2022-11-20 12:07:56,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-20 12:07:56,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-20 12:07:56,353 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-20 12:07:56,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-20 12:07:56,354 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_lock [2022-11-20 12:07:56,354 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_lock [2022-11-20 12:07:56,354 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-20 12:07:56,354 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-20 12:07:56,354 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_resume [2022-11-20 12:07:56,354 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_resume [2022-11-20 12:07:56,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_spi_driver_exit_9_2 [2022-11-20 12:07:56,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_spi_driver_exit_9_2 [2022-11-20 12:07:56,355 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_pm [2022-11-20 12:07:56,355 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_pm [2022-11-20 12:07:56,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:07:56,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-20 12:07:56,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-20 12:07:56,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:07:56,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:07:56,991 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:07:56,993 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:07:57,140 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 12:08:03,275 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-20 12:08:03,558 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:08:03,580 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:08:03,581 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-20 12:08:03,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:08:03 BoogieIcfgContainer [2022-11-20 12:08:03,590 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:08:03,593 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:08:03,594 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:08:03,597 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:08:03,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:07:52" (1/3) ... [2022-11-20 12:08:03,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3880d29c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:08:03, skipping insertion in model container [2022-11-20 12:08:03,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:07:55" (2/3) ... [2022-11-20 12:08:03,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3880d29c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:08:03, skipping insertion in model container [2022-11-20 12:08:03,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:08:03" (3/3) ... [2022-11-20 12:08:03,603 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i [2022-11-20 12:08:03,622 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:08:03,622 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-20 12:08:03,710 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:08:03,717 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@582246a9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:08:03,717 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-20 12:08:03,728 INFO L276 IsEmpty]: Start isEmpty. Operand has 1042 states, 746 states have (on average 1.2801608579088473) internal successors, (955), 756 states have internal predecessors, (955), 246 states have call successors, (246), 50 states have call predecessors, (246), 49 states have return successors, (237), 236 states have call predecessors, (237), 237 states have call successors, (237) [2022-11-20 12:08:03,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-11-20 12:08:03,759 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:08:03,760 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:08:03,761 INFO L420 AbstractCegarLoop]: === Iteration 1 === 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)] === [2022-11-20 12:08:03,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:08:03,770 INFO L85 PathProgramCache]: Analyzing trace with hash 721129090, now seen corresponding path program 1 times [2022-11-20 12:08:03,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:08:03,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162624937] [2022-11-20 12:08:03,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:08:03,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:08:04,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:04,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:08:04,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:04,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:04,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:04,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-20 12:08:04,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:04,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:04,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:04,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 12:08:04,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:04,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:04,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:04,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-20 12:08:04,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:04,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:04,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:04,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-20 12:08:04,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:04,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:04,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:04,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 12:08:04,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:04,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:04,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:04,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-20 12:08:04,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:04,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:04,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:04,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-20 12:08:04,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:04,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:04,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:04,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-20 12:08:04,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:04,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:04,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:04,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 12:08:04,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:04,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:04,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:04,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-20 12:08:04,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:04,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:04,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:04,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-20 12:08:04,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:04,900 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2022-11-20 12:08:04,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:08:04,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162624937] [2022-11-20 12:08:04,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162624937] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:08:04,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:08:04,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:08:04,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378692118] [2022-11-20 12:08:04,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:08:04,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:08:04,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:08:04,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:08:04,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:08:04,964 INFO L87 Difference]: Start difference. First operand has 1042 states, 746 states have (on average 1.2801608579088473) internal successors, (955), 756 states have internal predecessors, (955), 246 states have call successors, (246), 50 states have call predecessors, (246), 49 states have return successors, (237), 236 states have call predecessors, (237), 237 states have call successors, (237) 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, (17), 3 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 12:08:08,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:08:10,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:08:13,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:08:15,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:08:16,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:08:16,612 INFO L93 Difference]: Finished difference Result 2877 states and 4071 transitions. [2022-11-20 12:08:16,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:08:16,615 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, (17), 3 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 151 [2022-11-20 12:08:16,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:08:16,640 INFO L225 Difference]: With dead ends: 2877 [2022-11-20 12:08:16,640 INFO L226 Difference]: Without dead ends: 1846 [2022-11-20 12:08:16,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:08:16,657 INFO L413 NwaCegarLoop]: 1315 mSDtfsCounter, 1261 mSDsluCounter, 1654 mSDsCounter, 0 mSdLazyCounter, 1210 mSolverCounterSat, 520 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1427 SdHoareTripleChecker+Valid, 2969 SdHoareTripleChecker+Invalid, 1734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 520 IncrementalHoareTripleChecker+Valid, 1210 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:08:16,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1427 Valid, 2969 Invalid, 1734 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [520 Valid, 1210 Invalid, 4 Unknown, 0 Unchecked, 11.2s Time] [2022-11-20 12:08:16,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1846 states. [2022-11-20 12:08:16,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1846 to 1777. [2022-11-20 12:08:16,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1777 states, 1279 states have (on average 1.2478498827208757) internal successors, (1596), 1306 states have internal predecessors, (1596), 402 states have call successors, (402), 94 states have call predecessors, (402), 93 states have return successors, (398), 392 states have call predecessors, (398), 398 states have call successors, (398) [2022-11-20 12:08:16,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1777 states to 1777 states and 2396 transitions. [2022-11-20 12:08:16,935 INFO L78 Accepts]: Start accepts. Automaton has 1777 states and 2396 transitions. Word has length 151 [2022-11-20 12:08:16,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:08:16,937 INFO L495 AbstractCegarLoop]: Abstraction has 1777 states and 2396 transitions. [2022-11-20 12:08:16,938 INFO L496 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, (17), 3 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 12:08:16,938 INFO L276 IsEmpty]: Start isEmpty. Operand 1777 states and 2396 transitions. [2022-11-20 12:08:16,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-11-20 12:08:16,954 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:08:16,954 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:08:16,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:08:16,955 INFO L420 AbstractCegarLoop]: === Iteration 2 === 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)] === [2022-11-20 12:08:16,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:08:16,956 INFO L85 PathProgramCache]: Analyzing trace with hash -2136202304, now seen corresponding path program 1 times [2022-11-20 12:08:16,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:08:16,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080602275] [2022-11-20 12:08:16,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:08:16,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:08:17,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:17,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:08:17,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:17,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:17,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:17,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-20 12:08:17,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:17,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:17,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:17,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 12:08:17,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:17,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:17,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:17,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-20 12:08:17,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:17,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:17,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:17,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-20 12:08:17,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:17,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:17,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:17,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 12:08:17,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:17,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:17,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:17,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-20 12:08:17,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:17,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:17,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:17,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-20 12:08:17,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:17,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:17,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:17,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-20 12:08:17,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:17,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:17,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:17,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 12:08:17,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:17,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:17,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:17,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-20 12:08:17,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:17,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:17,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:17,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-20 12:08:17,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:17,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-20 12:08:17,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:17,581 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2022-11-20 12:08:17,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:08:17,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080602275] [2022-11-20 12:08:17,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080602275] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:08:17,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:08:17,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:08:17,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534223571] [2022-11-20 12:08:17,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:08:17,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:08:17,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:08:17,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:08:17,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:08:17,589 INFO L87 Difference]: Start difference. First operand 1777 states and 2396 transitions. 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, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-20 12:08:20,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:08:22,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:08:25,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:08:27,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:08:28,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:08:28,442 INFO L93 Difference]: Finished difference Result 5214 states and 7068 transitions. [2022-11-20 12:08:28,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:08:28,442 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, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 151 [2022-11-20 12:08:28,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:08:28,463 INFO L225 Difference]: With dead ends: 5214 [2022-11-20 12:08:28,463 INFO L226 Difference]: Without dead ends: 3464 [2022-11-20 12:08:28,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:08:28,471 INFO L413 NwaCegarLoop]: 1292 mSDtfsCounter, 1473 mSDsluCounter, 1686 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 470 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1654 SdHoareTripleChecker+Valid, 2978 SdHoareTripleChecker+Invalid, 1509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 470 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-11-20 12:08:28,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1654 Valid, 2978 Invalid, 1509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [470 Valid, 1035 Invalid, 4 Unknown, 0 Unchecked, 10.5s Time] [2022-11-20 12:08:28,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3464 states. [2022-11-20 12:08:28,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3464 to 3376. [2022-11-20 12:08:28,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3376 states, 2450 states have (on average 1.2477551020408164) internal successors, (3057), 2496 states have internal predecessors, (3057), 740 states have call successors, (740), 184 states have call predecessors, (740), 183 states have return successors, (736), 727 states have call predecessors, (736), 736 states have call successors, (736) [2022-11-20 12:08:28,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3376 states to 3376 states and 4533 transitions. [2022-11-20 12:08:28,711 INFO L78 Accepts]: Start accepts. Automaton has 3376 states and 4533 transitions. Word has length 151 [2022-11-20 12:08:28,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:08:28,714 INFO L495 AbstractCegarLoop]: Abstraction has 3376 states and 4533 transitions. [2022-11-20 12:08:28,714 INFO L496 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, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-20 12:08:28,715 INFO L276 IsEmpty]: Start isEmpty. Operand 3376 states and 4533 transitions. [2022-11-20 12:08:28,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-11-20 12:08:28,719 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:08:28,719 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:08:28,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:08:28,720 INFO L420 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)] === [2022-11-20 12:08:28,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:08:28,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1935260890, now seen corresponding path program 1 times [2022-11-20 12:08:28,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:08:28,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492701230] [2022-11-20 12:08:28,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:08:28,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:08:28,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:28,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:08:28,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:28,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:28,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:28,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-20 12:08:28,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:28,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:28,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:28,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 12:08:28,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:28,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:28,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:28,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-20 12:08:28,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:28,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:28,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:28,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-20 12:08:28,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:28,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:28,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:28,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 12:08:28,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:28,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:28,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:28,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-20 12:08:28,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:29,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:29,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:29,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-20 12:08:29,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:29,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:29,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:29,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-20 12:08:29,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:29,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:29,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:29,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 12:08:29,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:29,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:29,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:29,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-20 12:08:29,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:29,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:29,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:29,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-20 12:08:29,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:29,098 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2022-11-20 12:08:29,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:08:29,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492701230] [2022-11-20 12:08:29,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492701230] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:08:29,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:08:29,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:08:29,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332627060] [2022-11-20 12:08:29,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:08:29,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:08:29,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:08:29,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:08:29,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:08:29,104 INFO L87 Difference]: Start difference. First operand 3376 states and 4533 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 12:08:33,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:08:35,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:08:36,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:08:36,106 INFO L93 Difference]: Finished difference Result 8201 states and 11052 transitions. [2022-11-20 12:08:36,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:08:36,107 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 157 [2022-11-20 12:08:36,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:08:36,133 INFO L225 Difference]: With dead ends: 8201 [2022-11-20 12:08:36,133 INFO L226 Difference]: Without dead ends: 4852 [2022-11-20 12:08:36,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:08:36,148 INFO L413 NwaCegarLoop]: 1292 mSDtfsCounter, 1397 mSDsluCounter, 1698 mSDsCounter, 0 mSdLazyCounter, 1054 mSolverCounterSat, 515 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1571 SdHoareTripleChecker+Valid, 2990 SdHoareTripleChecker+Invalid, 1571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 515 IncrementalHoareTripleChecker+Valid, 1054 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-11-20 12:08:36,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1571 Valid, 2990 Invalid, 1571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [515 Valid, 1054 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-11-20 12:08:36,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4852 states. [2022-11-20 12:08:36,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4852 to 4697. [2022-11-20 12:08:36,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4697 states, 3403 states have (on average 1.2406699970614163) internal successors, (4222), 3478 states have internal predecessors, (4222), 1026 states have call successors, (1026), 266 states have call predecessors, (1026), 265 states have return successors, (1022), 1000 states have call predecessors, (1022), 1022 states have call successors, (1022) [2022-11-20 12:08:36,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4697 states to 4697 states and 6270 transitions. [2022-11-20 12:08:36,399 INFO L78 Accepts]: Start accepts. Automaton has 4697 states and 6270 transitions. Word has length 157 [2022-11-20 12:08:36,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:08:36,400 INFO L495 AbstractCegarLoop]: Abstraction has 4697 states and 6270 transitions. [2022-11-20 12:08:36,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 12:08:36,401 INFO L276 IsEmpty]: Start isEmpty. Operand 4697 states and 6270 transitions. [2022-11-20 12:08:36,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-11-20 12:08:36,404 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:08:36,404 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:08:36,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 12:08:36,405 INFO L420 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)] === [2022-11-20 12:08:36,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:08:36,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1807238196, now seen corresponding path program 1 times [2022-11-20 12:08:36,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:08:36,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143345833] [2022-11-20 12:08:36,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:08:36,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:08:36,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:36,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:08:36,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:36,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:36,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:36,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-20 12:08:36,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:36,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:36,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:36,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 12:08:36,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:36,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:36,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:36,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-20 12:08:36,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:36,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:36,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:36,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-20 12:08:36,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:36,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:36,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:36,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 12:08:36,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:36,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:36,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:36,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-20 12:08:36,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:36,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:36,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:36,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-20 12:08:36,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:36,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:36,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:36,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-20 12:08:36,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:36,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:36,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:36,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 12:08:36,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:36,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:36,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:36,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-20 12:08:36,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:36,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:36,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:36,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-20 12:08:36,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:36,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-20 12:08:36,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:36,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-20 12:08:36,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:36,842 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2022-11-20 12:08:36,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:08:36,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143345833] [2022-11-20 12:08:36,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143345833] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:08:36,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:08:36,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:08:36,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947191748] [2022-11-20 12:08:36,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:08:36,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:08:36,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:08:36,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:08:36,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:08:36,845 INFO L87 Difference]: Start difference. First operand 4697 states and 6270 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-20 12:08:40,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:08:42,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:08:45,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:08:47,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:08:48,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:08:48,154 INFO L93 Difference]: Finished difference Result 13837 states and 18823 transitions. [2022-11-20 12:08:48,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:08:48,155 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 163 [2022-11-20 12:08:48,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:08:48,208 INFO L225 Difference]: With dead ends: 13837 [2022-11-20 12:08:48,209 INFO L226 Difference]: Without dead ends: 9167 [2022-11-20 12:08:48,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:08:48,227 INFO L413 NwaCegarLoop]: 1347 mSDtfsCounter, 1544 mSDsluCounter, 1764 mSDsCounter, 0 mSdLazyCounter, 1030 mSolverCounterSat, 552 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1707 SdHoareTripleChecker+Valid, 3111 SdHoareTripleChecker+Invalid, 1586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 552 IncrementalHoareTripleChecker+Valid, 1030 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2022-11-20 12:08:48,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1707 Valid, 3111 Invalid, 1586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [552 Valid, 1030 Invalid, 4 Unknown, 0 Unchecked, 10.8s Time] [2022-11-20 12:08:48,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9167 states. [2022-11-20 12:08:48,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9167 to 8998. [2022-11-20 12:08:48,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8998 states, 6524 states have (on average 1.2426425505824648) internal successors, (8107), 6690 states have internal predecessors, (8107), 1958 states have call successors, (1958), 508 states have call predecessors, (1958), 513 states have return successors, (2302), 1877 states have call predecessors, (2302), 1954 states have call successors, (2302) [2022-11-20 12:08:48,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8998 states to 8998 states and 12367 transitions. [2022-11-20 12:08:48,802 INFO L78 Accepts]: Start accepts. Automaton has 8998 states and 12367 transitions. Word has length 163 [2022-11-20 12:08:48,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:08:48,803 INFO L495 AbstractCegarLoop]: Abstraction has 8998 states and 12367 transitions. [2022-11-20 12:08:48,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-20 12:08:48,805 INFO L276 IsEmpty]: Start isEmpty. Operand 8998 states and 12367 transitions. [2022-11-20 12:08:48,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-11-20 12:08:48,810 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:08:48,810 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 11, 11, 11, 11, 11, 11, 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] [2022-11-20 12:08:48,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 12:08:48,811 INFO L420 AbstractCegarLoop]: === Iteration 5 === 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)] === [2022-11-20 12:08:48,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:08:48,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1643913902, now seen corresponding path program 1 times [2022-11-20 12:08:48,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:08:48,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789811506] [2022-11-20 12:08:48,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:08:48,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:08:48,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:48,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:08:48,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:49,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:49,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:49,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-20 12:08:49,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:49,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:49,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:49,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 12:08:49,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:49,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:49,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:49,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-20 12:08:49,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:49,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:49,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:49,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-20 12:08:49,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:49,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:49,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:49,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 12:08:49,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:49,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:49,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:49,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-20 12:08:49,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:49,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:49,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:49,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-20 12:08:49,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:49,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:49,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:49,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-20 12:08:49,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:49,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:49,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:49,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 12:08:49,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:49,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:49,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:49,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-20 12:08:49,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:49,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:08:49,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:49,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-20 12:08:49,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:49,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-20 12:08:49,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:49,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-20 12:08:49,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:49,298 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 564 trivial. 0 not checked. [2022-11-20 12:08:49,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:08:49,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789811506] [2022-11-20 12:08:49,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789811506] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:08:49,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:08:49,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:08:49,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554448357] [2022-11-20 12:08:49,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:08:49,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:08:49,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:08:49,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:08:49,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:08:49,304 INFO L87 Difference]: Start difference. First operand 8998 states and 12367 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-20 12:08:53,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:08:55,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:08:57,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:08:59,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:09:00,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:09:00,634 INFO L93 Difference]: Finished difference Result 22325 states and 30488 transitions. [2022-11-20 12:09:00,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:09:00,635 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 175 [2022-11-20 12:09:00,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:09:00,735 INFO L225 Difference]: With dead ends: 22325 [2022-11-20 12:09:00,735 INFO L226 Difference]: Without dead ends: 13354 [2022-11-20 12:09:00,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:09:00,773 INFO L413 NwaCegarLoop]: 1527 mSDtfsCounter, 1421 mSDsluCounter, 1876 mSDsCounter, 0 mSdLazyCounter, 1088 mSolverCounterSat, 487 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1600 SdHoareTripleChecker+Valid, 3403 SdHoareTripleChecker+Invalid, 1579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 487 IncrementalHoareTripleChecker+Valid, 1088 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2022-11-20 12:09:00,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1600 Valid, 3403 Invalid, 1579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [487 Valid, 1088 Invalid, 4 Unknown, 0 Unchecked, 10.7s Time] [2022-11-20 12:09:00,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13354 states. [2022-11-20 12:09:01,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13354 to 13117. [2022-11-20 12:09:01,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13117 states, 9511 states have (on average 1.2319419619388077) internal successors, (11717), 9777 states have internal predecessors, (11717), 2822 states have call successors, (2822), 779 states have call predecessors, (2822), 781 states have return successors, (3246), 2677 states have call predecessors, (3246), 2818 states have call successors, (3246) [2022-11-20 12:09:01,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13117 states to 13117 states and 17785 transitions. [2022-11-20 12:09:01,501 INFO L78 Accepts]: Start accepts. Automaton has 13117 states and 17785 transitions. Word has length 175 [2022-11-20 12:09:01,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:09:01,502 INFO L495 AbstractCegarLoop]: Abstraction has 13117 states and 17785 transitions. [2022-11-20 12:09:01,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-20 12:09:01,502 INFO L276 IsEmpty]: Start isEmpty. Operand 13117 states and 17785 transitions. [2022-11-20 12:09:01,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-11-20 12:09:01,586 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:09:01,586 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 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] [2022-11-20 12:09:01,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 12:09:01,586 INFO L420 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)] === [2022-11-20 12:09:01,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:09:01,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1842689181, now seen corresponding path program 1 times [2022-11-20 12:09:01,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:09:01,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899283088] [2022-11-20 12:09:01,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:09:01,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:09:01,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:01,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:09:01,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:01,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:01,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:01,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-20 12:09:01,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:01,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:01,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:01,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 12:09:01,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:01,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:01,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:01,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-20 12:09:01,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:01,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:01,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:01,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-20 12:09:01,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:01,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:01,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:01,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 12:09:01,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:01,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:01,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:01,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-20 12:09:01,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:01,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:01,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:01,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-20 12:09:01,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:01,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:01,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:01,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-20 12:09:01,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:01,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:01,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:01,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 12:09:01,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:01,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:01,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:01,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-20 12:09:01,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:01,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:01,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:01,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-20 12:09:01,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:01,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-20 12:09:01,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:01,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-20 12:09:01,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:01,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-20 12:09:01,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:01,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-20 12:09:01,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:01,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:01,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:01,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-11-20 12:09:01,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:01,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-11-20 12:09:01,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:01,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-11-20 12:09:01,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:01,965 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 669 trivial. 0 not checked. [2022-11-20 12:09:01,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:09:01,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899283088] [2022-11-20 12:09:01,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899283088] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:09:01,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:09:01,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:09:01,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548942226] [2022-11-20 12:09:01,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:09:01,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:09:01,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:09:01,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:09:01,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:09:01,968 INFO L87 Difference]: Start difference. First operand 13117 states and 17785 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-20 12:09:05,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:09:07,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:09:10,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:09:12,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:09:13,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:09:13,193 INFO L93 Difference]: Finished difference Result 36658 states and 49805 transitions. [2022-11-20 12:09:13,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:09:13,194 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 209 [2022-11-20 12:09:13,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:09:13,388 INFO L225 Difference]: With dead ends: 36658 [2022-11-20 12:09:13,388 INFO L226 Difference]: Without dead ends: 24503 [2022-11-20 12:09:13,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:09:13,437 INFO L413 NwaCegarLoop]: 2130 mSDtfsCounter, 1280 mSDsluCounter, 2345 mSDsCounter, 0 mSdLazyCounter, 1226 mSolverCounterSat, 284 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1456 SdHoareTripleChecker+Valid, 4475 SdHoareTripleChecker+Invalid, 1514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 284 IncrementalHoareTripleChecker+Valid, 1226 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:09:13,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1456 Valid, 4475 Invalid, 1514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [284 Valid, 1226 Invalid, 4 Unknown, 0 Unchecked, 10.4s Time] [2022-11-20 12:09:13,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24503 states. [2022-11-20 12:09:14,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24503 to 24127. [2022-11-20 12:09:14,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24127 states, 17581 states have (on average 1.2320687105397872) internal successors, (21661), 18013 states have internal predecessors, (21661), 5106 states have call successors, (5106), 1431 states have call predecessors, (5106), 1437 states have return successors, (5954), 4903 states have call predecessors, (5954), 5102 states have call successors, (5954) [2022-11-20 12:09:14,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24127 states to 24127 states and 32721 transitions. [2022-11-20 12:09:14,986 INFO L78 Accepts]: Start accepts. Automaton has 24127 states and 32721 transitions. Word has length 209 [2022-11-20 12:09:14,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:09:14,988 INFO L495 AbstractCegarLoop]: Abstraction has 24127 states and 32721 transitions. [2022-11-20 12:09:14,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-20 12:09:14,988 INFO L276 IsEmpty]: Start isEmpty. Operand 24127 states and 32721 transitions. [2022-11-20 12:09:14,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-11-20 12:09:14,993 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:09:14,993 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 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] [2022-11-20 12:09:14,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 12:09:14,994 INFO L420 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)] === [2022-11-20 12:09:14,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:09:14,994 INFO L85 PathProgramCache]: Analyzing trace with hash 80538853, now seen corresponding path program 1 times [2022-11-20 12:09:14,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:09:14,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232270949] [2022-11-20 12:09:14,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:09:14,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:09:15,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:15,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:09:15,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:15,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:15,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:15,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-20 12:09:15,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:15,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:15,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:15,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 12:09:15,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:15,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:15,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:15,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-20 12:09:15,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:15,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:15,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:15,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-20 12:09:15,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:15,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:15,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:15,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 12:09:15,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:15,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:15,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:15,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-20 12:09:15,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:15,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:15,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:15,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-20 12:09:15,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:15,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:15,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:15,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-20 12:09:15,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:15,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:15,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:15,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 12:09:15,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:15,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:15,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:15,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-20 12:09:15,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:15,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:15,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:15,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-20 12:09:15,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:15,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-20 12:09:15,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:15,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-20 12:09:15,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:15,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-20 12:09:15,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:15,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-20 12:09:15,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:15,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:15,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:15,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-11-20 12:09:15,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:15,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-11-20 12:09:15,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:15,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-11-20 12:09:15,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:15,947 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 681 trivial. 0 not checked. [2022-11-20 12:09:15,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:09:15,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232270949] [2022-11-20 12:09:15,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232270949] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:09:15,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:09:15,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:09:15,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094235381] [2022-11-20 12:09:15,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:09:15,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:09:15,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:09:15,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:09:15,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:09:15,951 INFO L87 Difference]: Start difference. First operand 24127 states and 32721 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, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-20 12:09:19,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:09:21,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:09:22,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:09:22,728 INFO L93 Difference]: Finished difference Result 24505 states and 33143 transitions. [2022-11-20 12:09:22,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:09:22,729 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, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 209 [2022-11-20 12:09:22,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:09:22,829 INFO L225 Difference]: With dead ends: 24505 [2022-11-20 12:09:22,830 INFO L226 Difference]: Without dead ends: 24503 [2022-11-20 12:09:22,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:09:22,842 INFO L413 NwaCegarLoop]: 1129 mSDtfsCounter, 1334 mSDsluCounter, 2721 mSDsCounter, 0 mSdLazyCounter, 1194 mSolverCounterSat, 344 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1483 SdHoareTripleChecker+Valid, 3850 SdHoareTripleChecker+Invalid, 1540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 344 IncrementalHoareTripleChecker+Valid, 1194 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-20 12:09:22,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1483 Valid, 3850 Invalid, 1540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [344 Valid, 1194 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2022-11-20 12:09:22,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24503 states. [2022-11-20 12:09:24,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24503 to 24131. [2022-11-20 12:09:24,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24131 states, 17584 states have (on average 1.2320291173794358) internal successors, (21664), 18016 states have internal predecessors, (21664), 5106 states have call successors, (5106), 1432 states have call predecessors, (5106), 1438 states have return successors, (5954), 4903 states have call predecessors, (5954), 5102 states have call successors, (5954) [2022-11-20 12:09:24,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24131 states to 24131 states and 32724 transitions. [2022-11-20 12:09:24,302 INFO L78 Accepts]: Start accepts. Automaton has 24131 states and 32724 transitions. Word has length 209 [2022-11-20 12:09:24,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:09:24,303 INFO L495 AbstractCegarLoop]: Abstraction has 24131 states and 32724 transitions. [2022-11-20 12:09:24,303 INFO L496 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, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-20 12:09:24,303 INFO L276 IsEmpty]: Start isEmpty. Operand 24131 states and 32724 transitions. [2022-11-20 12:09:24,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-11-20 12:09:24,308 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:09:24,309 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 2, 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] [2022-11-20 12:09:24,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 12:09:24,309 INFO L420 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)] === [2022-11-20 12:09:24,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:09:24,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1216213445, now seen corresponding path program 1 times [2022-11-20 12:09:24,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:09:24,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022424976] [2022-11-20 12:09:24,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:09:24,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:09:24,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:24,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:09:24,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:24,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:24,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:24,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-20 12:09:24,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:24,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:24,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:24,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 12:09:24,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:24,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:24,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:24,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-20 12:09:24,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:24,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:24,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:24,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-20 12:09:24,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:24,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:24,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:24,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 12:09:24,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:24,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:24,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:24,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-20 12:09:24,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:24,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:24,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:24,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-20 12:09:24,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:24,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:24,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:24,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-20 12:09:24,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:24,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:24,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:24,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 12:09:24,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:24,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:24,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:24,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-20 12:09:24,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:24,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:24,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:24,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-20 12:09:24,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:24,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-20 12:09:24,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:24,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-20 12:09:24,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:24,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-20 12:09:24,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:24,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-20 12:09:24,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:24,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:24,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:24,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-11-20 12:09:24,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:24,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-11-20 12:09:24,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:24,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-11-20 12:09:24,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:24,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-11-20 12:09:24,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:24,989 INFO L134 CoverageAnalysis]: Checked inductivity of 683 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 681 trivial. 0 not checked. [2022-11-20 12:09:24,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:09:24,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022424976] [2022-11-20 12:09:24,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022424976] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:09:24,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:09:24,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:09:24,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068349811] [2022-11-20 12:09:24,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:09:24,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:09:24,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:09:24,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:09:24,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:09:24,992 INFO L87 Difference]: Start difference. First operand 24131 states and 32724 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, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-20 12:09:28,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:09:30,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:09:31,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:09:31,982 INFO L93 Difference]: Finished difference Result 24509 states and 33146 transitions. [2022-11-20 12:09:31,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:09:31,982 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, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 214 [2022-11-20 12:09:31,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:09:32,089 INFO L225 Difference]: With dead ends: 24509 [2022-11-20 12:09:32,090 INFO L226 Difference]: Without dead ends: 24507 [2022-11-20 12:09:32,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:09:32,103 INFO L413 NwaCegarLoop]: 1129 mSDtfsCounter, 1326 mSDsluCounter, 2721 mSDsCounter, 0 mSdLazyCounter, 1197 mSolverCounterSat, 343 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1475 SdHoareTripleChecker+Valid, 3850 SdHoareTripleChecker+Invalid, 1542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 343 IncrementalHoareTripleChecker+Valid, 1197 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-20 12:09:32,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1475 Valid, 3850 Invalid, 1542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [343 Valid, 1197 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2022-11-20 12:09:32,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24507 states. [2022-11-20 12:09:34,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24507 to 24135. [2022-11-20 12:09:34,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24135 states, 17587 states have (on average 1.23198953772673) internal successors, (21667), 18019 states have internal predecessors, (21667), 5106 states have call successors, (5106), 1433 states have call predecessors, (5106), 1439 states have return successors, (5954), 4903 states have call predecessors, (5954), 5102 states have call successors, (5954) [2022-11-20 12:09:34,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24135 states to 24135 states and 32727 transitions. [2022-11-20 12:09:34,130 INFO L78 Accepts]: Start accepts. Automaton has 24135 states and 32727 transitions. Word has length 214 [2022-11-20 12:09:34,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:09:34,131 INFO L495 AbstractCegarLoop]: Abstraction has 24135 states and 32727 transitions. [2022-11-20 12:09:34,132 INFO L496 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, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-20 12:09:34,132 INFO L276 IsEmpty]: Start isEmpty. Operand 24135 states and 32727 transitions. [2022-11-20 12:09:34,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-11-20 12:09:34,138 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:09:34,138 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 3, 2, 2, 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] [2022-11-20 12:09:34,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 12:09:34,139 INFO L420 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)] === [2022-11-20 12:09:34,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:09:34,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1354197605, now seen corresponding path program 1 times [2022-11-20 12:09:34,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:09:34,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444686539] [2022-11-20 12:09:34,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:09:34,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:09:34,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:34,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:09:34,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:34,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:34,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:34,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-20 12:09:34,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:34,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:34,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:34,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 12:09:34,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:34,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:34,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:34,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-20 12:09:34,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:34,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:34,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:34,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-20 12:09:34,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:34,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:34,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:34,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 12:09:34,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:34,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:34,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:34,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-20 12:09:34,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:34,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:34,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:34,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-20 12:09:34,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:34,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:34,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:34,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-20 12:09:34,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:34,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:34,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:34,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 12:09:34,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:34,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:34,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:34,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-20 12:09:34,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:34,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:34,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:34,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-20 12:09:34,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:34,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-20 12:09:34,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:34,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-20 12:09:34,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:34,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-20 12:09:34,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:34,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-20 12:09:34,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:34,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:34,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:34,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-11-20 12:09:34,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:34,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-11-20 12:09:34,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:34,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-11-20 12:09:34,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:34,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-11-20 12:09:34,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:34,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-11-20 12:09:34,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:34,807 INFO L134 CoverageAnalysis]: Checked inductivity of 689 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 685 trivial. 0 not checked. [2022-11-20 12:09:34,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:09:34,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444686539] [2022-11-20 12:09:34,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444686539] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:09:34,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:09:34,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:09:34,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049117052] [2022-11-20 12:09:34,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:09:34,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:09:34,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:09:34,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:09:34,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:09:34,811 INFO L87 Difference]: Start difference. First operand 24135 states and 32727 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, (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) [2022-11-20 12:09:38,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:09:40,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:09:41,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:09:41,847 INFO L93 Difference]: Finished difference Result 24513 states and 33149 transitions. [2022-11-20 12:09:41,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:09:41,848 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, (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 219 [2022-11-20 12:09:41,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:09:41,957 INFO L225 Difference]: With dead ends: 24513 [2022-11-20 12:09:41,957 INFO L226 Difference]: Without dead ends: 24511 [2022-11-20 12:09:41,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:09:41,973 INFO L413 NwaCegarLoop]: 1129 mSDtfsCounter, 1326 mSDsluCounter, 2721 mSDsCounter, 0 mSdLazyCounter, 1197 mSolverCounterSat, 342 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1475 SdHoareTripleChecker+Valid, 3850 SdHoareTripleChecker+Invalid, 1541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 342 IncrementalHoareTripleChecker+Valid, 1197 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-20 12:09:41,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1475 Valid, 3850 Invalid, 1541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [342 Valid, 1197 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2022-11-20 12:09:42,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24511 states. [2022-11-20 12:09:43,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24511 to 24139. [2022-11-20 12:09:43,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24139 states, 17590 states have (on average 1.2319499715747584) internal successors, (21670), 18022 states have internal predecessors, (21670), 5106 states have call successors, (5106), 1434 states have call predecessors, (5106), 1440 states have return successors, (5954), 4903 states have call predecessors, (5954), 5102 states have call successors, (5954) [2022-11-20 12:09:43,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24139 states to 24139 states and 32730 transitions. [2022-11-20 12:09:43,992 INFO L78 Accepts]: Start accepts. Automaton has 24139 states and 32730 transitions. Word has length 219 [2022-11-20 12:09:43,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:09:43,993 INFO L495 AbstractCegarLoop]: Abstraction has 24139 states and 32730 transitions. [2022-11-20 12:09:43,993 INFO L496 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, (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) [2022-11-20 12:09:43,994 INFO L276 IsEmpty]: Start isEmpty. Operand 24139 states and 32730 transitions. [2022-11-20 12:09:44,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-11-20 12:09:44,000 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:09:44,000 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 5, 5, 5, 4, 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] [2022-11-20 12:09:44,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 12:09:44,001 INFO L420 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)] === [2022-11-20 12:09:44,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:09:44,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1293283289, now seen corresponding path program 1 times [2022-11-20 12:09:44,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:09:44,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664338555] [2022-11-20 12:09:44,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:09:44,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:09:44,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:44,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:09:44,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:44,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:44,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:44,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-20 12:09:44,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:44,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:44,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:44,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 12:09:44,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:44,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:44,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:44,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-20 12:09:44,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:44,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:44,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:44,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-20 12:09:44,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:44,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:44,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:44,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 12:09:44,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:44,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:44,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:44,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-20 12:09:44,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:44,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:44,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:44,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-20 12:09:44,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:44,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:44,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:44,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-20 12:09:44,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:44,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:44,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:44,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 12:09:44,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:44,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:44,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:44,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-20 12:09:44,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:44,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:44,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:44,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-20 12:09:44,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:44,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-20 12:09:44,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:44,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-20 12:09:44,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:44,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-20 12:09:44,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:44,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-20 12:09:44,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:44,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:09:44,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:44,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-11-20 12:09:44,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:44,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-11-20 12:09:44,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:44,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-11-20 12:09:44,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:44,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-11-20 12:09:44,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:44,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:09:44,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:44,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-11-20 12:09:44,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:44,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-11-20 12:09:44,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:44,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-11-20 12:09:44,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:44,429 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 697 trivial. 0 not checked. [2022-11-20 12:09:44,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:09:44,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664338555] [2022-11-20 12:09:44,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664338555] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:09:44,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:09:44,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:09:44,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876752272] [2022-11-20 12:09:44,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:09:44,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:09:44,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:09:44,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:09:44,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:09:44,433 INFO L87 Difference]: Start difference. First operand 24139 states and 32730 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, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-20 12:09:50,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:09:52,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:09:55,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:09:57,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:09:59,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:09:59,950 INFO L93 Difference]: Finished difference Result 58924 states and 79956 transitions. [2022-11-20 12:09:59,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 12:09:59,951 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, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 234 [2022-11-20 12:09:59,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:10:00,066 INFO L225 Difference]: With dead ends: 58924 [2022-11-20 12:10:00,066 INFO L226 Difference]: Without dead ends: 35747 [2022-11-20 12:10:00,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-20 12:10:00,124 INFO L413 NwaCegarLoop]: 1474 mSDtfsCounter, 1588 mSDsluCounter, 2604 mSDsCounter, 0 mSdLazyCounter, 2905 mSolverCounterSat, 866 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1773 SdHoareTripleChecker+Valid, 4078 SdHoareTripleChecker+Invalid, 3775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 866 IncrementalHoareTripleChecker+Valid, 2905 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2022-11-20 12:10:00,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1773 Valid, 4078 Invalid, 3775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [866 Valid, 2905 Invalid, 4 Unknown, 0 Unchecked, 12.9s Time] [2022-11-20 12:10:00,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35747 states. [2022-11-20 12:10:02,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35747 to 35165. [2022-11-20 12:10:02,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35165 states, 25676 states have (on average 1.231889702445864) internal successors, (31630), 26274 states have internal predecessors, (31630), 7390 states have call successors, (7390), 2086 states have call predecessors, (7390), 2096 states have return successors, (8662), 7129 states have call predecessors, (8662), 7386 states have call successors, (8662) [2022-11-20 12:10:02,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35165 states to 35165 states and 47682 transitions. [2022-11-20 12:10:02,330 INFO L78 Accepts]: Start accepts. Automaton has 35165 states and 47682 transitions. Word has length 234 [2022-11-20 12:10:02,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:10:02,331 INFO L495 AbstractCegarLoop]: Abstraction has 35165 states and 47682 transitions. [2022-11-20 12:10:02,331 INFO L496 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, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-20 12:10:02,331 INFO L276 IsEmpty]: Start isEmpty. Operand 35165 states and 47682 transitions. [2022-11-20 12:10:02,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-11-20 12:10:02,337 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:10:02,337 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 4, 3, 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] [2022-11-20 12:10:02,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 12:10:02,338 INFO L420 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)] === [2022-11-20 12:10:02,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:10:02,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1984180283, now seen corresponding path program 1 times [2022-11-20 12:10:02,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:10:02,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105047059] [2022-11-20 12:10:02,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:10:02,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:10:02,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:02,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:10:02,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:02,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:02,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:02,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-20 12:10:02,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:02,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:02,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:02,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 12:10:02,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:02,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:02,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:02,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-20 12:10:02,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:02,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:02,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:02,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-20 12:10:02,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:02,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:02,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:02,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 12:10:02,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:02,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:02,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:02,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-20 12:10:02,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:02,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:02,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:02,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-20 12:10:02,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:02,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:02,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:02,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-20 12:10:02,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:02,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:02,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:02,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 12:10:02,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:02,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:02,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:02,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-20 12:10:02,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:02,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:02,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:02,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-20 12:10:02,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:02,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-20 12:10:02,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:02,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-20 12:10:02,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:02,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-20 12:10:02,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:02,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-20 12:10:02,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:02,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:02,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:02,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-11-20 12:10:02,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:02,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-11-20 12:10:02,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:02,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-11-20 12:10:02,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:02,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-11-20 12:10:02,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:02,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-11-20 12:10:02,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:02,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-11-20 12:10:02,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:02,939 INFO L134 CoverageAnalysis]: Checked inductivity of 699 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 693 trivial. 0 not checked. [2022-11-20 12:10:02,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:10:02,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105047059] [2022-11-20 12:10:02,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105047059] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:10:02,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:10:02,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:10:02,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541246624] [2022-11-20 12:10:02,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:10:02,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:10:02,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:10:02,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:10:02,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:10:02,943 INFO L87 Difference]: Start difference. First operand 35165 states and 47682 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) [2022-11-20 12:10:06,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:10:08,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:10:10,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:10:10,908 INFO L93 Difference]: Finished difference Result 35719 states and 48296 transitions. [2022-11-20 12:10:10,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:10:10,909 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 224 [2022-11-20 12:10:10,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:10:10,990 INFO L225 Difference]: With dead ends: 35719 [2022-11-20 12:10:10,991 INFO L226 Difference]: Without dead ends: 35717 [2022-11-20 12:10:11,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:10:11,001 INFO L413 NwaCegarLoop]: 1129 mSDtfsCounter, 1326 mSDsluCounter, 2721 mSDsCounter, 0 mSdLazyCounter, 1197 mSolverCounterSat, 341 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1475 SdHoareTripleChecker+Valid, 3850 SdHoareTripleChecker+Invalid, 1540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 341 IncrementalHoareTripleChecker+Valid, 1197 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-20 12:10:11,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1475 Valid, 3850 Invalid, 1540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [341 Valid, 1197 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-11-20 12:10:11,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35717 states. [2022-11-20 12:10:12,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35717 to 35169. [2022-11-20 12:10:12,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35169 states, 25679 states have (on average 1.2318626114724094) internal successors, (31633), 26277 states have internal predecessors, (31633), 7390 states have call successors, (7390), 2087 states have call predecessors, (7390), 2097 states have return successors, (8662), 7129 states have call predecessors, (8662), 7386 states have call successors, (8662) [2022-11-20 12:10:13,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35169 states to 35169 states and 47685 transitions. [2022-11-20 12:10:13,091 INFO L78 Accepts]: Start accepts. Automaton has 35169 states and 47685 transitions. Word has length 224 [2022-11-20 12:10:13,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:10:13,092 INFO L495 AbstractCegarLoop]: Abstraction has 35169 states and 47685 transitions. [2022-11-20 12:10:13,093 INFO L496 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) [2022-11-20 12:10:13,093 INFO L276 IsEmpty]: Start isEmpty. Operand 35169 states and 47685 transitions. [2022-11-20 12:10:13,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-11-20 12:10:13,099 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:10:13,099 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 5, 4, 4, 4, 4, 4, 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] [2022-11-20 12:10:13,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 12:10:13,099 INFO L420 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)] === [2022-11-20 12:10:13,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:10:13,100 INFO L85 PathProgramCache]: Analyzing trace with hash -2144028699, now seen corresponding path program 1 times [2022-11-20 12:10:13,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:10:13,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632589024] [2022-11-20 12:10:13,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:10:13,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:10:13,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:13,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:10:13,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:13,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:13,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:13,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-20 12:10:13,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:13,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:13,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:13,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 12:10:13,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:13,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:13,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:13,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-20 12:10:13,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:13,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:13,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:13,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-20 12:10:13,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:13,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:13,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:13,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 12:10:13,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:13,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:13,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:13,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-20 12:10:13,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:13,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:13,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:13,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-20 12:10:13,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:13,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:13,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:13,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-20 12:10:13,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:13,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:13,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:13,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 12:10:13,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:13,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:13,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:13,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-20 12:10:13,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:13,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:13,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:13,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-20 12:10:13,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:13,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-20 12:10:13,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:13,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-20 12:10:13,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:13,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-20 12:10:13,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:13,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-20 12:10:13,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:13,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:13,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:13,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-11-20 12:10:13,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:13,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-11-20 12:10:13,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:13,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-11-20 12:10:13,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:13,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-11-20 12:10:13,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:13,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-11-20 12:10:13,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:13,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-11-20 12:10:13,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:13,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-11-20 12:10:13,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:13,924 INFO L134 CoverageAnalysis]: Checked inductivity of 713 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 705 trivial. 0 not checked. [2022-11-20 12:10:13,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:10:13,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632589024] [2022-11-20 12:10:13,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632589024] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:10:13,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:10:13,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:10:13,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822250855] [2022-11-20 12:10:13,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:10:13,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:10:13,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:10:13,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:10:13,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:10:13,928 INFO L87 Difference]: Start difference. First operand 35169 states and 47685 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) [2022-11-20 12:10:18,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:10:20,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:10:22,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:10:22,138 INFO L93 Difference]: Finished difference Result 35723 states and 48299 transitions. [2022-11-20 12:10:22,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:10:22,139 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 229 [2022-11-20 12:10:22,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:10:22,233 INFO L225 Difference]: With dead ends: 35723 [2022-11-20 12:10:22,233 INFO L226 Difference]: Without dead ends: 35721 [2022-11-20 12:10:22,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:10:22,244 INFO L413 NwaCegarLoop]: 1129 mSDtfsCounter, 1326 mSDsluCounter, 2721 mSDsCounter, 0 mSdLazyCounter, 1197 mSolverCounterSat, 340 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1475 SdHoareTripleChecker+Valid, 3850 SdHoareTripleChecker+Invalid, 1539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 340 IncrementalHoareTripleChecker+Valid, 1197 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-20 12:10:22,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1475 Valid, 3850 Invalid, 1539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [340 Valid, 1197 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2022-11-20 12:10:22,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35721 states. [2022-11-20 12:10:24,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35721 to 35173. [2022-11-20 12:10:24,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35173 states, 25682 states have (on average 1.2318355268281287) internal successors, (31636), 26280 states have internal predecessors, (31636), 7390 states have call successors, (7390), 2088 states have call predecessors, (7390), 2098 states have return successors, (8662), 7129 states have call predecessors, (8662), 7386 states have call successors, (8662) [2022-11-20 12:10:24,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35173 states to 35173 states and 47688 transitions. [2022-11-20 12:10:24,342 INFO L78 Accepts]: Start accepts. Automaton has 35173 states and 47688 transitions. Word has length 229 [2022-11-20 12:10:24,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:10:24,343 INFO L495 AbstractCegarLoop]: Abstraction has 35173 states and 47688 transitions. [2022-11-20 12:10:24,343 INFO L496 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) [2022-11-20 12:10:24,343 INFO L276 IsEmpty]: Start isEmpty. Operand 35173 states and 47688 transitions. [2022-11-20 12:10:24,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-11-20 12:10:24,348 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:10:24,348 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 6, 5, 5, 4, 4, 4, 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] [2022-11-20 12:10:24,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 12:10:24,349 INFO L420 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)] === [2022-11-20 12:10:24,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:10:24,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1397390789, now seen corresponding path program 1 times [2022-11-20 12:10:24,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:10:24,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772111576] [2022-11-20 12:10:24,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:10:24,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:10:24,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:24,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:10:24,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:24,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:24,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:24,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-20 12:10:24,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:24,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:24,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:24,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 12:10:24,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:24,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:24,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:24,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-20 12:10:24,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:24,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:24,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:24,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-20 12:10:24,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:24,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:24,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:24,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 12:10:24,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:24,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:24,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:24,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-20 12:10:24,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:24,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:24,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:24,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-20 12:10:24,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:24,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:24,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:25,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-20 12:10:25,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:25,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:25,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:25,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 12:10:25,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:25,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:25,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:25,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-20 12:10:25,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:25,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:25,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:25,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-20 12:10:25,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:25,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-20 12:10:25,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:25,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-20 12:10:25,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:25,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-20 12:10:25,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:25,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-20 12:10:25,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:25,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:25,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:25,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-11-20 12:10:25,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:25,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-11-20 12:10:25,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:25,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-11-20 12:10:25,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:25,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-11-20 12:10:25,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:25,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-11-20 12:10:25,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:25,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-11-20 12:10:25,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:25,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-11-20 12:10:25,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:25,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-11-20 12:10:25,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:25,264 INFO L134 CoverageAnalysis]: Checked inductivity of 731 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 721 trivial. 0 not checked. [2022-11-20 12:10:25,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:10:25,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772111576] [2022-11-20 12:10:25,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772111576] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:10:25,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:10:25,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:10:25,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481811845] [2022-11-20 12:10:25,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:10:25,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:10:25,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:10:25,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:10:25,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:10:25,269 INFO L87 Difference]: Start difference. First operand 35173 states and 47688 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) [2022-11-20 12:10:29,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:10:31,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:10:33,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:10:33,520 INFO L93 Difference]: Finished difference Result 35727 states and 48302 transitions. [2022-11-20 12:10:33,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:10:33,521 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 234 [2022-11-20 12:10:33,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:10:33,785 INFO L225 Difference]: With dead ends: 35727 [2022-11-20 12:10:33,785 INFO L226 Difference]: Without dead ends: 35725 [2022-11-20 12:10:33,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:10:33,795 INFO L413 NwaCegarLoop]: 1129 mSDtfsCounter, 1326 mSDsluCounter, 2721 mSDsCounter, 0 mSdLazyCounter, 1197 mSolverCounterSat, 339 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1475 SdHoareTripleChecker+Valid, 3850 SdHoareTripleChecker+Invalid, 1538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 339 IncrementalHoareTripleChecker+Valid, 1197 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-20 12:10:33,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1475 Valid, 3850 Invalid, 1538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [339 Valid, 1197 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-11-20 12:10:33,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35725 states. [2022-11-20 12:10:35,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35725 to 35177. [2022-11-20 12:10:35,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35177 states, 25685 states have (on average 1.231808448510804) internal successors, (31639), 26283 states have internal predecessors, (31639), 7390 states have call successors, (7390), 2089 states have call predecessors, (7390), 2099 states have return successors, (8662), 7129 states have call predecessors, (8662), 7386 states have call successors, (8662) [2022-11-20 12:10:36,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35177 states to 35177 states and 47691 transitions. [2022-11-20 12:10:36,102 INFO L78 Accepts]: Start accepts. Automaton has 35177 states and 47691 transitions. Word has length 234 [2022-11-20 12:10:36,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:10:36,103 INFO L495 AbstractCegarLoop]: Abstraction has 35177 states and 47691 transitions. [2022-11-20 12:10:36,103 INFO L496 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) [2022-11-20 12:10:36,103 INFO L276 IsEmpty]: Start isEmpty. Operand 35177 states and 47691 transitions. [2022-11-20 12:10:36,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-11-20 12:10:36,110 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:10:36,110 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 7, 6, 6, 4, 4, 4, 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, 1, 1] [2022-11-20 12:10:36,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 12:10:36,111 INFO L420 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)] === [2022-11-20 12:10:36,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:10:36,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1778330267, now seen corresponding path program 1 times [2022-11-20 12:10:36,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:10:36,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490431729] [2022-11-20 12:10:36,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:10:36,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:10:36,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:36,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:10:36,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:36,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:36,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:36,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-20 12:10:36,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:36,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:36,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:36,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 12:10:36,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:36,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:36,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:36,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-20 12:10:36,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:36,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:36,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:36,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-20 12:10:36,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:36,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:36,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:36,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 12:10:36,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:36,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:36,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:36,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-20 12:10:36,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:36,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:36,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:36,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-20 12:10:36,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:36,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:36,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:36,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-20 12:10:36,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:36,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:36,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:36,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 12:10:36,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:36,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:36,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:36,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-20 12:10:36,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:36,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:36,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:36,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-20 12:10:36,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:36,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-20 12:10:36,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:36,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-20 12:10:36,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:36,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-20 12:10:36,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:36,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-20 12:10:36,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:36,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:36,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:36,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-11-20 12:10:36,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:36,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-11-20 12:10:36,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:36,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-11-20 12:10:36,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:36,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-11-20 12:10:36,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:36,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-11-20 12:10:36,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:36,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-11-20 12:10:36,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:36,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-11-20 12:10:36,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:36,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-11-20 12:10:36,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:36,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-11-20 12:10:36,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:36,991 INFO L134 CoverageAnalysis]: Checked inductivity of 753 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2022-11-20 12:10:36,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:10:36,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490431729] [2022-11-20 12:10:36,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490431729] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:10:36,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:10:36,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:10:36,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062097660] [2022-11-20 12:10:36,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:10:36,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:10:36,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:10:36,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:10:36,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:10:36,996 INFO L87 Difference]: Start difference. First operand 35177 states and 47691 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) [2022-11-20 12:10:41,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:10:43,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:10:44,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:10:44,941 INFO L93 Difference]: Finished difference Result 36247 states and 48735 transitions. [2022-11-20 12:10:44,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 12:10:44,942 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 239 [2022-11-20 12:10:44,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:10:45,035 INFO L225 Difference]: With dead ends: 36247 [2022-11-20 12:10:45,035 INFO L226 Difference]: Without dead ends: 36245 [2022-11-20 12:10:45,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:10:45,050 INFO L413 NwaCegarLoop]: 1130 mSDtfsCounter, 1306 mSDsluCounter, 2745 mSDsCounter, 0 mSdLazyCounter, 1229 mSolverCounterSat, 328 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1448 SdHoareTripleChecker+Valid, 3875 SdHoareTripleChecker+Invalid, 1559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 328 IncrementalHoareTripleChecker+Valid, 1229 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-20 12:10:45,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1448 Valid, 3875 Invalid, 1559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [328 Valid, 1229 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-11-20 12:10:45,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36245 states. [2022-11-20 12:10:47,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36245 to 35697. [2022-11-20 12:10:47,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35697 states, 26118 states have (on average 1.227965387855119) internal successors, (32072), 26716 states have internal predecessors, (32072), 7390 states have call successors, (7390), 2176 states have call predecessors, (7390), 2186 states have return successors, (8662), 7129 states have call predecessors, (8662), 7386 states have call successors, (8662) [2022-11-20 12:10:47,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35697 states to 35697 states and 48124 transitions. [2022-11-20 12:10:47,390 INFO L78 Accepts]: Start accepts. Automaton has 35697 states and 48124 transitions. Word has length 239 [2022-11-20 12:10:47,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:10:47,391 INFO L495 AbstractCegarLoop]: Abstraction has 35697 states and 48124 transitions. [2022-11-20 12:10:47,391 INFO L496 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) [2022-11-20 12:10:47,391 INFO L276 IsEmpty]: Start isEmpty. Operand 35697 states and 48124 transitions. [2022-11-20 12:10:47,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-11-20 12:10:47,395 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:10:47,396 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 8, 7, 7, 4, 4, 4, 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, 1, 1, 1, 1] [2022-11-20 12:10:47,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 12:10:47,396 INFO L420 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)] === [2022-11-20 12:10:47,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:10:47,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1382415301, now seen corresponding path program 1 times [2022-11-20 12:10:47,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:10:47,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124024872] [2022-11-20 12:10:47,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:10:47,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:10:47,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:47,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:10:47,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:47,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:47,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:47,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-20 12:10:47,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:47,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:47,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:47,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 12:10:47,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:47,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:47,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:47,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-20 12:10:47,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:47,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:47,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:47,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-20 12:10:47,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:47,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:47,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:47,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 12:10:47,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:47,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:47,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:47,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-20 12:10:47,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:47,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:47,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:47,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-20 12:10:47,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:47,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:47,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:47,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-20 12:10:47,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:47,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:47,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:47,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 12:10:47,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:47,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:47,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:47,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-20 12:10:47,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:47,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:47,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:47,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-20 12:10:47,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:47,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-20 12:10:47,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:47,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-20 12:10:47,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:47,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-20 12:10:47,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:47,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-20 12:10:48,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:48,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:48,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:48,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-11-20 12:10:48,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:48,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-11-20 12:10:48,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:48,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-11-20 12:10:48,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:48,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-11-20 12:10:48,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:48,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-11-20 12:10:48,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:48,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-11-20 12:10:48,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:48,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-11-20 12:10:48,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:48,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-11-20 12:10:48,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:48,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-11-20 12:10:48,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:48,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-11-20 12:10:48,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:48,130 INFO L134 CoverageAnalysis]: Checked inductivity of 779 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 765 trivial. 0 not checked. [2022-11-20 12:10:48,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:10:48,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124024872] [2022-11-20 12:10:48,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124024872] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:10:48,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:10:48,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:10:48,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190416778] [2022-11-20 12:10:48,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:10:48,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:10:48,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:10:48,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:10:48,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:10:48,133 INFO L87 Difference]: Start difference. First operand 35697 states and 48124 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) [2022-11-20 12:10:51,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:10:53,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:10:56,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:10:56,223 INFO L93 Difference]: Finished difference Result 36251 states and 48738 transitions. [2022-11-20 12:10:56,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:10:56,224 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 244 [2022-11-20 12:10:56,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:10:56,325 INFO L225 Difference]: With dead ends: 36251 [2022-11-20 12:10:56,325 INFO L226 Difference]: Without dead ends: 36249 [2022-11-20 12:10:56,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:10:56,340 INFO L413 NwaCegarLoop]: 1129 mSDtfsCounter, 1326 mSDsluCounter, 2721 mSDsCounter, 0 mSdLazyCounter, 1197 mSolverCounterSat, 337 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1475 SdHoareTripleChecker+Valid, 3850 SdHoareTripleChecker+Invalid, 1536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 337 IncrementalHoareTripleChecker+Valid, 1197 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-20 12:10:56,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1475 Valid, 3850 Invalid, 1536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [337 Valid, 1197 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-11-20 12:10:56,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36249 states. [2022-11-20 12:10:59,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36249 to 35701. [2022-11-20 12:10:59,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35701 states, 26121 states have (on average 1.227939206002833) internal successors, (32075), 26719 states have internal predecessors, (32075), 7390 states have call successors, (7390), 2177 states have call predecessors, (7390), 2187 states have return successors, (8662), 7129 states have call predecessors, (8662), 7386 states have call successors, (8662) [2022-11-20 12:10:59,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35701 states to 35701 states and 48127 transitions. [2022-11-20 12:10:59,235 INFO L78 Accepts]: Start accepts. Automaton has 35701 states and 48127 transitions. Word has length 244 [2022-11-20 12:10:59,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:10:59,236 INFO L495 AbstractCegarLoop]: Abstraction has 35701 states and 48127 transitions. [2022-11-20 12:10:59,236 INFO L496 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) [2022-11-20 12:10:59,236 INFO L276 IsEmpty]: Start isEmpty. Operand 35701 states and 48127 transitions. [2022-11-20 12:10:59,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2022-11-20 12:10:59,241 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:10:59,241 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 9, 8, 8, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1] [2022-11-20 12:10:59,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 12:10:59,242 INFO L420 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)] === [2022-11-20 12:10:59,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:10:59,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1507312357, now seen corresponding path program 1 times [2022-11-20 12:10:59,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:10:59,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369498406] [2022-11-20 12:10:59,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:10:59,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:10:59,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:59,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:10:59,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:59,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:59,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:59,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-20 12:10:59,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:59,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:59,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:59,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 12:10:59,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:59,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:59,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:59,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-20 12:10:59,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:59,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:59,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:59,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-20 12:10:59,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:59,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:59,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:59,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 12:10:59,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:59,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:59,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:59,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-20 12:10:59,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:59,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:59,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:59,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-20 12:10:59,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:59,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:59,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:59,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-20 12:10:59,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:59,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:59,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:59,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 12:10:59,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:59,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:59,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:59,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-20 12:10:59,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:59,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:59,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:59,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-20 12:10:59,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:59,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-20 12:10:59,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:59,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-20 12:10:59,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:59,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-20 12:10:59,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:59,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-20 12:10:59,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:59,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:10:59,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:59,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-11-20 12:10:59,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:59,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-11-20 12:10:59,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:59,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-11-20 12:10:59,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:59,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-11-20 12:10:59,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:59,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-11-20 12:10:59,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:59,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-11-20 12:10:59,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:59,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-11-20 12:10:59,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:59,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-11-20 12:10:59,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:59,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-11-20 12:10:59,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:59,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-11-20 12:10:59,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:59,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-11-20 12:10:59,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:59,900 INFO L134 CoverageAnalysis]: Checked inductivity of 809 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 793 trivial. 0 not checked. [2022-11-20 12:10:59,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:10:59,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369498406] [2022-11-20 12:10:59,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369498406] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:10:59,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:10:59,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:10:59,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490803518] [2022-11-20 12:10:59,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:10:59,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:10:59,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:10:59,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:10:59,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:10:59,906 INFO L87 Difference]: Start difference. First operand 35701 states and 48127 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) [2022-11-20 12:11:04,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:11:06,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:11:08,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:11:08,578 INFO L93 Difference]: Finished difference Result 36255 states and 48741 transitions. [2022-11-20 12:11:08,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:11:08,579 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 249 [2022-11-20 12:11:08,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:11:08,673 INFO L225 Difference]: With dead ends: 36255 [2022-11-20 12:11:08,673 INFO L226 Difference]: Without dead ends: 36253 [2022-11-20 12:11:08,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:11:08,685 INFO L413 NwaCegarLoop]: 1129 mSDtfsCounter, 1326 mSDsluCounter, 2721 mSDsCounter, 0 mSdLazyCounter, 1197 mSolverCounterSat, 336 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1475 SdHoareTripleChecker+Valid, 3850 SdHoareTripleChecker+Invalid, 1535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 336 IncrementalHoareTripleChecker+Valid, 1197 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-20 12:11:08,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1475 Valid, 3850 Invalid, 1535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [336 Valid, 1197 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2022-11-20 12:11:08,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36253 states. [2022-11-20 12:11:11,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36253 to 35705. [2022-11-20 12:11:11,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35705 states, 26124 states have (on average 1.2279130301638341) internal successors, (32078), 26722 states have internal predecessors, (32078), 7390 states have call successors, (7390), 2178 states have call predecessors, (7390), 2188 states have return successors, (8662), 7129 states have call predecessors, (8662), 7386 states have call successors, (8662) [2022-11-20 12:11:11,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35705 states to 35705 states and 48130 transitions. [2022-11-20 12:11:11,286 INFO L78 Accepts]: Start accepts. Automaton has 35705 states and 48130 transitions. Word has length 249 [2022-11-20 12:11:11,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:11:11,287 INFO L495 AbstractCegarLoop]: Abstraction has 35705 states and 48130 transitions. [2022-11-20 12:11:11,287 INFO L496 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) [2022-11-20 12:11:11,288 INFO L276 IsEmpty]: Start isEmpty. Operand 35705 states and 48130 transitions. [2022-11-20 12:11:11,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-11-20 12:11:11,293 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:11:11,293 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 10, 9, 9, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:11:11,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 12:11:11,294 INFO L420 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)] === [2022-11-20 12:11:11,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:11:11,295 INFO L85 PathProgramCache]: Analyzing trace with hash 649442875, now seen corresponding path program 1 times [2022-11-20 12:11:11,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:11:11,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777123676] [2022-11-20 12:11:11,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:11:11,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:11:11,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:11,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:11:11,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:11,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:11:11,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:11,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-20 12:11:11,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:11,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:11:11,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:11,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 12:11:11,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:11,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:11:11,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:11,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-20 12:11:11,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:11,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:11:11,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:11,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-20 12:11:11,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:11,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:11:11,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:11,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 12:11:11,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:11,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:11:11,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:11,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-20 12:11:11,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:11,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:11:11,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:11,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-20 12:11:11,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:11,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:11:11,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:11,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-20 12:11:11,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:11,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:11:11,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:11,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 12:11:11,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:11,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:11:11,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:11,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-20 12:11:11,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:11,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:11:11,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:11,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-20 12:11:11,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:11,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-20 12:11:11,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:11,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-20 12:11:11,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:11,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-20 12:11:11,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:11,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-20 12:11:11,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:11,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:11:11,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:11,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-11-20 12:11:11,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:11,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-11-20 12:11:11,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:11,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-11-20 12:11:11,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:11,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-11-20 12:11:11,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:11,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-11-20 12:11:11,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:12,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-11-20 12:11:12,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:12,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-11-20 12:11:12,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:12,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-11-20 12:11:12,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:12,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-11-20 12:11:12,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:12,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-11-20 12:11:12,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:12,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-11-20 12:11:12,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:12,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-11-20 12:11:12,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:12,052 INFO L134 CoverageAnalysis]: Checked inductivity of 843 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 825 trivial. 0 not checked. [2022-11-20 12:11:12,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:11:12,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777123676] [2022-11-20 12:11:12,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777123676] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:11:12,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:11:12,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:11:12,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084852847] [2022-11-20 12:11:12,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:11:12,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:11:12,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:11:12,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:11:12,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:11:12,056 INFO L87 Difference]: Start difference. First operand 35705 states and 48130 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) [2022-11-20 12:11:15,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:11:17,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:11:20,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:11:20,779 INFO L93 Difference]: Finished difference Result 36259 states and 48744 transitions. [2022-11-20 12:11:20,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:11:20,780 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 254 [2022-11-20 12:11:20,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:11:20,875 INFO L225 Difference]: With dead ends: 36259 [2022-11-20 12:11:20,875 INFO L226 Difference]: Without dead ends: 36257 [2022-11-20 12:11:20,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:11:20,887 INFO L413 NwaCegarLoop]: 1129 mSDtfsCounter, 1326 mSDsluCounter, 2721 mSDsCounter, 0 mSdLazyCounter, 1197 mSolverCounterSat, 335 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1475 SdHoareTripleChecker+Valid, 3850 SdHoareTripleChecker+Invalid, 1534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 335 IncrementalHoareTripleChecker+Valid, 1197 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-20 12:11:20,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1475 Valid, 3850 Invalid, 1534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [335 Valid, 1197 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-11-20 12:11:20,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36257 states. [2022-11-20 12:11:23,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36257 to 35709. [2022-11-20 12:11:23,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35709 states, 26127 states have (on average 1.2278868603360509) internal successors, (32081), 26725 states have internal predecessors, (32081), 7390 states have call successors, (7390), 2179 states have call predecessors, (7390), 2189 states have return successors, (8662), 7129 states have call predecessors, (8662), 7386 states have call successors, (8662) [2022-11-20 12:11:23,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35709 states to 35709 states and 48133 transitions. [2022-11-20 12:11:23,650 INFO L78 Accepts]: Start accepts. Automaton has 35709 states and 48133 transitions. Word has length 254 [2022-11-20 12:11:23,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:11:23,651 INFO L495 AbstractCegarLoop]: Abstraction has 35709 states and 48133 transitions. [2022-11-20 12:11:23,651 INFO L496 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) [2022-11-20 12:11:23,652 INFO L276 IsEmpty]: Start isEmpty. Operand 35709 states and 48133 transitions. [2022-11-20 12:11:23,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-11-20 12:11:23,657 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:11:23,658 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 11, 10, 10, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:11:23,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-20 12:11:23,658 INFO L420 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)] === [2022-11-20 12:11:23,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:11:23,659 INFO L85 PathProgramCache]: Analyzing trace with hash 410353765, now seen corresponding path program 1 times [2022-11-20 12:11:23,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:11:23,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138491196] [2022-11-20 12:11:23,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:11:23,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:11:23,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:23,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:11:23,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:23,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:11:23,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:23,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-20 12:11:23,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:23,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:11:23,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:23,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 12:11:23,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:23,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:11:23,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:23,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-20 12:11:23,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:23,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:11:23,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:23,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-20 12:11:23,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:23,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:11:24,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:24,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 12:11:24,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:24,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:11:24,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:24,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-20 12:11:24,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:24,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:11:24,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:24,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-20 12:11:24,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:24,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:11:24,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:24,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-20 12:11:24,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:24,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:11:24,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:24,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 12:11:24,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:24,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:11:24,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:24,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-20 12:11:24,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:24,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:11:24,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:24,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-20 12:11:24,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:24,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-20 12:11:24,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:24,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-20 12:11:24,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:24,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-20 12:11:24,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:24,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-20 12:11:24,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:24,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:11:24,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:24,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-11-20 12:11:24,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:24,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-11-20 12:11:24,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:24,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-11-20 12:11:24,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:24,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-11-20 12:11:24,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:24,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-11-20 12:11:24,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:24,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-11-20 12:11:24,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:24,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-11-20 12:11:24,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:24,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-11-20 12:11:24,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:24,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-11-20 12:11:24,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:24,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-11-20 12:11:24,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:24,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-11-20 12:11:24,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:24,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-11-20 12:11:24,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:24,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-11-20 12:11:24,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:24,257 INFO L134 CoverageAnalysis]: Checked inductivity of 881 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2022-11-20 12:11:24,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:11:24,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138491196] [2022-11-20 12:11:24,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138491196] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:11:24,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:11:24,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:11:24,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112981254] [2022-11-20 12:11:24,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:11:24,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:11:24,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:11:24,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:11:24,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:11:24,260 INFO L87 Difference]: Start difference. First operand 35709 states and 48133 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) [2022-11-20 12:11:28,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:11:30,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []