./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3192c-1457-44b9-9678-39fa386acc25/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3192c-1457-44b9-9678-39fa386acc25/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3192c-1457-44b9-9678-39fa386acc25/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3192c-1457-44b9-9678-39fa386acc25/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3192c-1457-44b9-9678-39fa386acc25/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3192c-1457-44b9-9678-39fa386acc25/bin/uautomizer-Dbtcem3rbc --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 91f73b42c8fe3db55fbb7a7497120df3b9b2fa6084f78fe538d2c182c8caed17 --- 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-5e519f3 [2022-11-02 21:12:27,104 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:12:27,107 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:12:27,146 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:12:27,147 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:12:27,148 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:12:27,149 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:12:27,151 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:12:27,153 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:12:27,153 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:12:27,154 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:12:27,156 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:12:27,156 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:12:27,157 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:12:27,158 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:12:27,160 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:12:27,160 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:12:27,161 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:12:27,163 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:12:27,165 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:12:27,167 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:12:27,168 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:12:27,169 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:12:27,170 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:12:27,174 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:12:27,174 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:12:27,174 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:12:27,175 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:12:27,176 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:12:27,177 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:12:27,177 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:12:27,178 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:12:27,179 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:12:27,180 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:12:27,181 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:12:27,181 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:12:27,182 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:12:27,182 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:12:27,183 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:12:27,184 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:12:27,184 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:12:27,188 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3192c-1457-44b9-9678-39fa386acc25/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-02 21:12:27,220 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:12:27,220 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:12:27,221 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:12:27,221 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:12:27,223 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 21:12:27,223 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 21:12:27,223 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:12:27,224 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:12:27,224 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:12:27,224 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:12:27,225 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 21:12:27,225 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:12:27,226 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 21:12:27,226 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 21:12:27,226 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 21:12:27,226 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 21:12:27,226 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:12:27,227 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 21:12:27,227 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:12:27,227 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:12:27,227 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 21:12:27,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:12:27,228 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:12:27,228 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 21:12:27,228 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 21:12:27,228 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 21:12:27,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 21:12:27,229 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 21:12:27,229 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 21:12:27,229 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 21:12:27,229 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_eda3192c-1457-44b9-9678-39fa386acc25/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3192c-1457-44b9-9678-39fa386acc25/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 91f73b42c8fe3db55fbb7a7497120df3b9b2fa6084f78fe538d2c182c8caed17 [2022-11-02 21:12:27,553 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:12:27,583 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:12:27,585 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:12:27,587 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:12:27,587 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:12:27,588 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3192c-1457-44b9-9678-39fa386acc25/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2022-11-02 21:12:27,651 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3192c-1457-44b9-9678-39fa386acc25/bin/uautomizer-Dbtcem3rbc/data/59cd57cc6/d41a55a3187b4dba87f081115e22dffc/FLAG92beac113 [2022-11-02 21:12:28,714 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:12:28,715 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3192c-1457-44b9-9678-39fa386acc25/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2022-11-02 21:12:28,786 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3192c-1457-44b9-9678-39fa386acc25/bin/uautomizer-Dbtcem3rbc/data/59cd57cc6/d41a55a3187b4dba87f081115e22dffc/FLAG92beac113 [2022-11-02 21:12:29,145 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3192c-1457-44b9-9678-39fa386acc25/bin/uautomizer-Dbtcem3rbc/data/59cd57cc6/d41a55a3187b4dba87f081115e22dffc [2022-11-02 21:12:29,152 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:12:29,155 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:12:29,159 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:12:29,160 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:12:29,169 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:12:29,170 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:12:29" (1/1) ... [2022-11-02 21:12:29,171 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f84a37f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:29, skipping insertion in model container [2022-11-02 21:12:29,171 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:12:29" (1/1) ... [2022-11-02 21:12:29,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:12:29,415 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:12:36,350 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3192c-1457-44b9-9678-39fa386acc25/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[583669,583682] [2022-11-02 21:12:36,353 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3192c-1457-44b9-9678-39fa386acc25/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[583838,583851] [2022-11-02 21:12:36,354 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3192c-1457-44b9-9678-39fa386acc25/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[584005,584018] [2022-11-02 21:12:36,354 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3192c-1457-44b9-9678-39fa386acc25/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[584173,584186] [2022-11-02 21:12:36,397 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:12:36,455 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:12:37,336 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3192c-1457-44b9-9678-39fa386acc25/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[583669,583682] [2022-11-02 21:12:37,338 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3192c-1457-44b9-9678-39fa386acc25/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[583838,583851] [2022-11-02 21:12:37,338 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3192c-1457-44b9-9678-39fa386acc25/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[584005,584018] [2022-11-02 21:12:37,339 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3192c-1457-44b9-9678-39fa386acc25/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[584173,584186] [2022-11-02 21:12:37,352 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:12:37,890 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:12:37,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:37 WrapperNode [2022-11-02 21:12:37,891 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:12:37,892 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:12:37,893 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:12:37,893 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:12:37,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:37" (1/1) ... [2022-11-02 21:12:38,087 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:37" (1/1) ... [2022-11-02 21:12:38,452 INFO L138 Inliner]: procedures = 798, calls = 5626, calls flagged for inlining = 404, calls inlined = 343, statements flattened = 11117 [2022-11-02 21:12:38,453 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:12:38,454 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:12:38,454 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:12:38,454 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:12:38,464 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:37" (1/1) ... [2022-11-02 21:12:38,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:37" (1/1) ... [2022-11-02 21:12:38,535 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:37" (1/1) ... [2022-11-02 21:12:38,537 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:37" (1/1) ... [2022-11-02 21:12:38,953 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:37" (1/1) ... [2022-11-02 21:12:38,995 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:37" (1/1) ... [2022-11-02 21:12:39,202 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:37" (1/1) ... [2022-11-02 21:12:39,244 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:37" (1/1) ... [2022-11-02 21:12:39,322 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:12:39,323 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:12:39,323 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:12:39,325 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:12:39,326 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:37" (1/1) ... [2022-11-02 21:12:39,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:12:39,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3192c-1457-44b9-9678-39fa386acc25/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:12:39,355 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3192c-1457-44b9-9678-39fa386acc25/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 21:12:39,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3192c-1457-44b9-9678-39fa386acc25/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 21:12:39,400 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-02 21:12:39,400 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-02 21:12:39,400 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_remove [2022-11-02 21:12:39,400 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_remove [2022-11-02 21:12:39,401 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_led [2022-11-02 21:12:39,401 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_led [2022-11-02 21:12:39,401 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_alloc_rx_skbs [2022-11-02 21:12:39,401 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_alloc_rx_skbs [2022-11-02 21:12:39,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-02 21:12:39,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-02 21:12:39,402 INFO L130 BoogieDeclarations]: Found specification of procedure rx_set_rss [2022-11-02 21:12:39,402 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_set_rss [2022-11-02 21:12:39,402 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_power_aux [2022-11-02 21:12:39,402 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_power_aux [2022-11-02 21:12:39,402 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-02 21:12:39,402 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-02 21:12:39,403 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2022-11-02 21:12:39,403 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2022-11-02 21:12:39,403 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-02 21:12:39,403 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-02 21:12:39,403 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_add_filter [2022-11-02 21:12:39,403 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_add_filter [2022-11-02 21:12:39,403 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-02 21:12:39,404 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-02 21:12:39,404 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2022-11-02 21:12:39,404 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2022-11-02 21:12:39,404 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size_set [2022-11-02 21:12:39,404 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size_set [2022-11-02 21:12:39,404 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-02 21:12:39,405 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-02 21:12:39,405 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-02 21:12:39,405 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-02 21:12:39,405 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_init_netdev [2022-11-02 21:12:39,405 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_init_netdev [2022-11-02 21:12:39,405 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-02 21:12:39,406 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-02 21:12:39,406 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-02 21:12:39,406 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-02 21:12:39,406 INFO L130 BoogieDeclarations]: Found specification of procedure netif_schedule_queue [2022-11-02 21:12:39,406 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_schedule_queue [2022-11-02 21:12:39,406 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_get_regs_len [2022-11-02 21:12:39,406 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_get_regs_len [2022-11-02 21:12:39,407 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-02 21:12:39,407 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-02 21:12:39,407 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_update [2022-11-02 21:12:39,407 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_update [2022-11-02 21:12:39,407 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-02 21:12:39,407 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-02 21:12:39,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-02 21:12:39,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-02 21:12:39,408 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_ramset [2022-11-02 21:12:39,408 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_ramset [2022-11-02 21:12:39,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 21:12:39,408 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_update_features [2022-11-02 21:12:39,409 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_update_features [2022-11-02 21:12:39,409 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_netpoll [2022-11-02 21:12:39,409 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_netpoll [2022-11-02 21:12:39,409 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-02 21:12:39,409 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-02 21:12:39,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-02 21:12:39,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-02 21:12:39,410 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2022-11-02 21:12:39,410 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2022-11-02 21:12:39,410 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-02 21:12:39,410 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-02 21:12:39,410 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-02 21:12:39,410 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-02 21:12:39,411 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-02 21:12:39,411 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-02 21:12:39,411 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_lock [2022-11-02 21:12:39,411 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_lock [2022-11-02 21:12:39,411 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2022-11-02 21:12:39,411 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2022-11-02 21:12:39,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-02 21:12:39,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-02 21:12:39,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 21:12:39,412 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_add [2022-11-02 21:12:39,412 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_add [2022-11-02 21:12:39,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2022-11-02 21:12:39,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2022-11-02 21:12:39,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 21:12:39,413 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_map_skb [2022-11-02 21:12:39,413 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_map_skb [2022-11-02 21:12:39,413 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_resume [2022-11-02 21:12:39,413 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_resume [2022-11-02 21:12:39,413 INFO L130 BoogieDeclarations]: Found specification of procedure roundup_ring_size [2022-11-02 21:12:39,414 INFO L138 BoogieDeclarations]: Found implementation of procedure roundup_ring_size [2022-11-02 21:12:39,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-02 21:12:39,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-02 21:12:39,414 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-02 21:12:39,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-02 21:12:39,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 21:12:39,414 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-02 21:12:39,415 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_read32 [2022-11-02 21:12:39,415 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_read32 [2022-11-02 21:12:39,415 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_disable [2022-11-02 21:12:39,415 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_disable [2022-11-02 21:12:39,415 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_clean [2022-11-02 21:12:39,415 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_clean [2022-11-02 21:12:39,416 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2022-11-02 21:12:39,416 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2022-11-02 21:12:39,416 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-02 21:12:39,416 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-02 21:12:39,416 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_hw_down [2022-11-02 21:12:39,416 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_hw_down [2022-11-02 21:12:39,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-02 21:12:39,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-02 21:12:39,417 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_reinit [2022-11-02 21:12:39,417 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_reinit [2022-11-02 21:12:39,417 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-02 21:12:39,417 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-02 21:12:39,417 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_read16 [2022-11-02 21:12:39,418 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_read16 [2022-11-02 21:12:39,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:12:39,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:12:39,418 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_write16 [2022-11-02 21:12:39,418 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_write16 [2022-11-02 21:12:39,418 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-02 21:12:39,418 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-02 21:12:39,419 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_free_buffers [2022-11-02 21:12:39,419 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_free_buffers [2022-11-02 21:12:39,419 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-02 21:12:39,419 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-02 21:12:39,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-02 21:12:39,419 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-02 21:12:39,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-02 21:12:39,420 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2022-11-02 21:12:39,420 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2022-11-02 21:12:39,420 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2022-11-02 21:12:39,420 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2022-11-02 21:12:39,420 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-02 21:12:39,421 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-02 21:12:39,421 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read32 [2022-11-02 21:12:39,421 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read32 [2022-11-02 21:12:39,421 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-02 21:12:39,421 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_set_multicast [2022-11-02 21:12:39,421 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_set_multicast [2022-11-02 21:12:39,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-02 21:12:39,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-02 21:12:39,422 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_prefetch_init [2022-11-02 21:12:39,422 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_prefetch_init [2022-11-02 21:12:39,422 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_reset [2022-11-02 21:12:39,422 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_reset [2022-11-02 21:12:39,422 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-02 21:12:39,422 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-02 21:12:39,423 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-02 21:12:39,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-02 21:12:39,423 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-02 21:12:39,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-02 21:12:39,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_phy_lock_of_sky2_port [2022-11-02 21:12:39,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_phy_lock_of_sky2_port [2022-11-02 21:12:39,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-02 21:12:39,424 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-02 21:12:39,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-11-02 21:12:39,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-11-02 21:12:39,424 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-02 21:12:39,424 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-02 21:12:39,424 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_vpd_wait [2022-11-02 21:12:39,425 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_vpd_wait [2022-11-02 21:12:39,425 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-02 21:12:39,425 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-02 21:12:39,425 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_shutdown [2022-11-02 21:12:39,425 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_shutdown [2022-11-02 21:12:39,425 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read16 [2022-11-02 21:12:39,425 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read16 [2022-11-02 21:12:39,426 INFO L130 BoogieDeclarations]: Found specification of procedure get_tx_le [2022-11-02 21:12:39,426 INFO L138 BoogieDeclarations]: Found implementation of procedure get_tx_le [2022-11-02 21:12:39,426 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_stop [2022-11-02 21:12:39,426 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_stop [2022-11-02 21:12:39,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 21:12:39,426 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-02 21:12:39,426 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-02 21:12:39,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 21:12:39,427 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_all_down [2022-11-02 21:12:39,427 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_all_down [2022-11-02 21:12:39,427 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-02 21:12:39,427 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-02 21:12:39,427 INFO L130 BoogieDeclarations]: Found specification of procedure __gm_phy_read [2022-11-02 21:12:39,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __gm_phy_read [2022-11-02 21:12:39,428 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-02 21:12:39,428 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-02 21:12:39,428 INFO L130 BoogieDeclarations]: Found specification of procedure pci_find_capability [2022-11-02 21:12:39,428 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_find_capability [2022-11-02 21:12:39,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-02 21:12:39,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-02 21:12:39,429 INFO L130 BoogieDeclarations]: Found specification of procedure gma_write16 [2022-11-02 21:12:39,429 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_write16 [2022-11-02 21:12:39,429 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-02 21:12:39,429 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-02 21:12:39,429 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_next_rx [2022-11-02 21:12:39,429 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_next_rx [2022-11-02 21:12:39,429 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-02 21:12:39,430 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-02 21:12:39,430 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_irq [2022-11-02 21:12:39,430 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_irq [2022-11-02 21:12:39,430 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_get_eeprom_len [2022-11-02 21:12:39,430 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_get_eeprom_len [2022-11-02 21:12:39,430 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-02 21:12:39,430 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-02 21:12:39,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_79 [2022-11-02 21:12:39,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_79 [2022-11-02 21:12:39,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 21:12:39,431 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_us2clk [2022-11-02 21:12:39,431 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_us2clk [2022-11-02 21:12:39,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-02 21:12:39,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-02 21:12:39,432 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_retry_bh [2022-11-02 21:12:39,432 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_retry_bh [2022-11-02 21:12:39,432 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-11-02 21:12:39,432 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-11-02 21:12:39,432 INFO L130 BoogieDeclarations]: Found specification of procedure device_may_wakeup [2022-11-02 21:12:39,432 INFO L138 BoogieDeclarations]: Found implementation of procedure device_may_wakeup [2022-11-02 21:12:39,433 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-02 21:12:39,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-02 21:12:39,433 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-11-02 21:12:39,433 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-11-02 21:12:39,433 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_qset [2022-11-02 21:12:39,433 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_qset [2022-11-02 21:12:39,433 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_mhz [2022-11-02 21:12:39,434 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_mhz [2022-11-02 21:12:39,434 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-02 21:12:39,434 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-02 21:12:39,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-02 21:12:39,434 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-02 21:12:39,434 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-11-02 21:12:39,435 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-11-02 21:12:39,435 INFO L130 BoogieDeclarations]: Found specification of procedure get_stats32 [2022-11-02 21:12:39,435 INFO L138 BoogieDeclarations]: Found implementation of procedure get_stats32 [2022-11-02 21:12:39,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-02 21:12:39,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-02 21:12:39,435 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-02 21:12:39,435 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-02 21:12:39,436 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_supported_modes [2022-11-02 21:12:39,436 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_supported_modes [2022-11-02 21:12:39,436 INFO L130 BoogieDeclarations]: Found specification of procedure gm_phy_read [2022-11-02 21:12:39,436 INFO L138 BoogieDeclarations]: Found implementation of procedure gm_phy_read [2022-11-02 21:12:39,436 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_alloc [2022-11-02 21:12:39,436 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_alloc [2022-11-02 21:12:39,436 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2022-11-02 21:12:39,437 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2022-11-02 21:12:39,437 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_unlock [2022-11-02 21:12:39,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_unlock [2022-11-02 21:12:39,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-02 21:12:39,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-02 21:12:39,438 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_show_addr [2022-11-02 21:12:39,438 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_show_addr [2022-11-02 21:12:39,438 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-02 21:12:39,438 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-02 21:12:39,438 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_close [2022-11-02 21:12:39,438 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_close [2022-11-02 21:12:39,439 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-02 21:12:39,439 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-02 21:12:39,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-02 21:12:39,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-02 21:12:39,439 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_start [2022-11-02 21:12:39,439 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_start [2022-11-02 21:12:39,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 21:12:39,440 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2022-11-02 21:12:39,440 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2022-11-02 21:12:39,440 INFO L130 BoogieDeclarations]: Found specification of procedure get_stats64 [2022-11-02 21:12:39,440 INFO L138 BoogieDeclarations]: Found implementation of procedure get_stats64 [2022-11-02 21:12:39,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2022-11-02 21:12:39,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2022-11-02 21:12:39,441 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-11-02 21:12:39,441 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-11-02 21:12:39,441 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-02 21:12:39,441 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-02 21:12:39,441 INFO L130 BoogieDeclarations]: Found specification of procedure pci_is_pcie [2022-11-02 21:12:39,441 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_is_pcie [2022-11-02 21:12:39,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-02 21:12:39,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-11-02 21:12:39,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-11-02 21:12:39,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-02 21:12:39,442 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-02 21:12:39,442 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-02 21:12:39,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_80 [2022-11-02 21:12:39,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_80 [2022-11-02 21:12:39,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-02 21:12:39,443 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-02 21:12:39,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-02 21:12:39,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-02 21:12:39,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-02 21:12:39,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-02 21:12:39,444 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_hw_up [2022-11-02 21:12:39,444 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_hw_up [2022-11-02 21:12:39,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_1 [2022-11-02 21:12:39,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_1 [2022-11-02 21:12:39,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_2 [2022-11-02 21:12:39,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_2 [2022-11-02 21:12:39,444 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2022-11-02 21:12:39,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2022-11-02 21:12:39,445 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_unmap [2022-11-02 21:12:39,445 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_unmap [2022-11-02 21:12:39,445 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_put_idx [2022-11-02 21:12:39,445 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_put_idx [2022-11-02 21:12:39,445 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-02 21:12:39,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-02 21:12:39,446 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_dma_map [2022-11-02 21:12:39,446 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_dma_map [2022-11-02 21:12:39,446 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-02 21:12:39,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-02 21:12:39,446 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_power_up [2022-11-02 21:12:39,446 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_power_up [2022-11-02 21:12:39,447 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_init [2022-11-02 21:12:39,447 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_init [2022-11-02 21:12:39,447 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-02 21:12:39,447 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-02 21:12:39,447 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_complete [2022-11-02 21:12:39,447 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_complete [2022-11-02 21:12:39,447 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_begin_bh [2022-11-02 21:12:39,448 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_begin_bh [2022-11-02 21:12:39,448 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-11-02 21:12:39,448 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-11-02 21:12:39,448 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read16 [2022-11-02 21:12:39,448 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read16 [2022-11-02 21:12:39,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-02 21:12:39,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-02 21:12:39,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-02 21:12:39,449 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_all_up [2022-11-02 21:12:39,449 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_all_up [2022-11-02 21:12:39,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-02 21:12:39,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-02 21:12:39,449 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_timeout [2022-11-02 21:12:39,449 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_timeout [2022-11-02 21:12:39,449 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-02 21:12:39,450 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-02 21:12:39,450 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_wol_supported [2022-11-02 21:12:39,450 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_wol_supported [2022-11-02 21:12:39,450 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_write32 [2022-11-02 21:12:39,450 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_write32 [2022-11-02 21:12:39,450 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2022-11-02 21:12:39,451 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2022-11-02 21:12:39,451 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_submit [2022-11-02 21:12:39,451 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_submit [2022-11-02 21:12:39,451 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-11-02 21:12:39,451 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-11-02 21:12:39,451 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-02 21:12:39,451 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-02 21:12:39,452 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_vlan_mode [2022-11-02 21:12:39,452 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_vlan_mode [2022-11-02 21:12:39,452 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read8 [2022-11-02 21:12:39,452 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read8 [2022-11-02 21:12:39,452 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_update_begin [2022-11-02 21:12:39,452 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_update_begin [2022-11-02 21:12:39,452 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read32 [2022-11-02 21:12:39,453 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read32 [2022-11-02 21:12:39,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_phy_lock_of_sky2_port [2022-11-02 21:12:39,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_phy_lock_of_sky2_port [2022-11-02 21:12:39,453 INFO L130 BoogieDeclarations]: Found specification of procedure gma_set_addr [2022-11-02 21:12:39,453 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_set_addr [2022-11-02 21:12:39,453 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-11-02 21:12:39,453 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-11-02 21:12:39,454 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2022-11-02 21:12:39,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2022-11-02 21:12:39,454 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-02 21:12:39,454 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-02 21:12:39,454 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-02 21:12:39,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-02 21:12:39,454 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-02 21:12:39,454 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-02 21:12:39,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-02 21:12:39,455 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_nway_reset [2022-11-02 21:12:39,455 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_nway_reset [2022-11-02 21:12:39,455 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-02 21:12:39,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-02 21:12:39,455 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-02 21:12:39,455 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-02 21:12:39,456 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-11-02 21:12:39,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-11-02 21:12:39,456 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-02 21:12:39,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-02 21:12:39,456 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-11-02 21:12:39,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-11-02 21:12:39,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-02 21:12:39,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-02 21:12:39,457 INFO L130 BoogieDeclarations]: Found specification of procedure tx_avail [2022-11-02 21:12:39,457 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_avail [2022-11-02 21:12:39,457 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_unmap_skb [2022-11-02 21:12:39,457 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_unmap_skb [2022-11-02 21:12:39,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-02 21:12:39,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-02 21:12:39,458 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_clk2us [2022-11-02 21:12:39,458 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_clk2us [2022-11-02 21:12:39,458 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_set_tx_stfwd [2022-11-02 21:12:39,458 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_set_tx_stfwd [2022-11-02 21:12:39,458 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_enable_rx_tx [2022-11-02 21:12:39,459 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_enable_rx_tx [2022-11-02 21:12:39,459 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-02 21:12:39,459 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-02 21:12:39,459 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2022-11-02 21:12:39,459 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2022-11-02 21:12:39,459 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-11-02 21:12:39,459 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-11-02 21:12:39,460 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_setup_irq [2022-11-02 21:12:39,460 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_setup_irq [2022-11-02 21:12:39,460 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-02 21:12:39,460 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-02 21:12:39,460 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-11-02 21:12:39,460 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-11-02 21:12:39,460 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-02 21:12:39,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-02 21:12:39,461 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_is_copper [2022-11-02 21:12:39,461 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_is_copper [2022-11-02 21:12:39,461 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-02 21:12:39,461 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-02 21:12:39,461 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_suspend [2022-11-02 21:12:39,461 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_suspend [2022-11-02 21:12:39,462 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-02 21:12:39,462 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-02 21:12:39,462 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write16 [2022-11-02 21:12:39,462 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write16 [2022-11-02 21:12:39,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-02 21:12:39,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-02 21:12:39,462 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-02 21:12:39,463 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-02 21:12:39,463 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write8 [2022-11-02 21:12:39,463 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write8 [2022-11-02 21:12:39,463 INFO L130 BoogieDeclarations]: Found specification of procedure gm_phy_write [2022-11-02 21:12:39,463 INFO L138 BoogieDeclarations]: Found implementation of procedure gm_phy_write [2022-11-02 21:12:39,463 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2022-11-02 21:12:39,463 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2022-11-02 21:12:39,464 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-02 21:12:39,464 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-02 21:12:39,464 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write32 [2022-11-02 21:12:39,464 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write32 [2022-11-02 21:12:39,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 21:12:39,464 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read64 [2022-11-02 21:12:39,464 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read64 [2022-11-02 21:12:39,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-02 21:12:39,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-02 21:12:39,465 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-02 21:12:39,465 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-02 21:12:39,465 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_open [2022-11-02 21:12:39,465 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_open [2022-11-02 21:12:39,465 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-02 21:12:40,926 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:12:40,935 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:12:41,083 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-02 21:13:02,418 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:13:02,454 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:13:02,454 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-11-02 21:13:02,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:13:02 BoogieIcfgContainer [2022-11-02 21:13:02,460 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:13:02,463 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 21:13:02,463 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 21:13:02,468 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 21:13:02,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:12:29" (1/3) ... [2022-11-02 21:13:02,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22604038 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:13:02, skipping insertion in model container [2022-11-02 21:13:02,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:37" (2/3) ... [2022-11-02 21:13:02,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22604038 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:13:02, skipping insertion in model container [2022-11-02 21:13:02,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:13:02" (3/3) ... [2022-11-02 21:13:02,471 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2022-11-02 21:13:02,492 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 21:13:02,492 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-02 21:13:02,642 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:13:02,649 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;@671cf8ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:13:02,651 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-02 21:13:02,667 INFO L276 IsEmpty]: Start isEmpty. Operand has 3880 states, 2516 states have (on average 1.273449920508744) internal successors, (3204), 2622 states have internal predecessors, (3204), 1154 states have call successors, (1154), 208 states have call predecessors, (1154), 207 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2022-11-02 21:13:02,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-02 21:13:02,683 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:02,683 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:02,684 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-02 21:13:02,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:02,691 INFO L85 PathProgramCache]: Analyzing trace with hash -2091117277, now seen corresponding path program 1 times [2022-11-02 21:13:02,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:13:02,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235657130] [2022-11-02 21:13:02,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:02,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:13:03,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:04,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 21:13:04,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:04,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:13:04,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:04,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 21:13:04,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:04,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-02 21:13:04,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:04,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-02 21:13:04,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:04,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:13:04,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:04,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-02 21:13:04,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:04,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-02 21:13:04,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:04,668 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-02 21:13:04,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:13:04,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235657130] [2022-11-02 21:13:04,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235657130] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:04,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:04,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 21:13:04,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505477889] [2022-11-02 21:13:04,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:04,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:13:04,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:13:04,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:13:04,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:13:04,735 INFO L87 Difference]: Start difference. First operand has 3880 states, 2516 states have (on average 1.273449920508744) internal successors, (3204), 2622 states have internal predecessors, (3204), 1154 states have call successors, (1154), 208 states have call predecessors, (1154), 207 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-02 21:13:20,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 21:13:23,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 21:13:23,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:23,894 INFO L93 Difference]: Finished difference Result 7981 states and 11548 transitions. [2022-11-02 21:13:23,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 21:13:23,900 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 62 [2022-11-02 21:13:23,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:23,947 INFO L225 Difference]: With dead ends: 7981 [2022-11-02 21:13:23,948 INFO L226 Difference]: Without dead ends: 4172 [2022-11-02 21:13:23,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:13:23,976 INFO L413 NwaCegarLoop]: 4958 mSDtfsCounter, 5569 mSDsluCounter, 7976 mSDsCounter, 0 mSdLazyCounter, 6409 mSolverCounterSat, 2914 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6157 SdHoareTripleChecker+Valid, 12934 SdHoareTripleChecker+Invalid, 9325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2914 IncrementalHoareTripleChecker+Valid, 6409 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:23,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6157 Valid, 12934 Invalid, 9325 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2914 Valid, 6409 Invalid, 2 Unknown, 0 Unchecked, 18.0s Time] [2022-11-02 21:13:24,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4172 states. [2022-11-02 21:13:24,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4172 to 3850. [2022-11-02 21:13:24,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3850 states, 2484 states have (on average 1.2536231884057971) internal successors, (3114), 2587 states have internal predecessors, (3114), 1149 states have call successors, (1149), 215 states have call predecessors, (1149), 214 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2022-11-02 21:13:24,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3850 states to 3850 states and 5409 transitions. [2022-11-02 21:13:24,372 INFO L78 Accepts]: Start accepts. Automaton has 3850 states and 5409 transitions. Word has length 62 [2022-11-02 21:13:24,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:24,374 INFO L495 AbstractCegarLoop]: Abstraction has 3850 states and 5409 transitions. [2022-11-02 21:13:24,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-02 21:13:24,374 INFO L276 IsEmpty]: Start isEmpty. Operand 3850 states and 5409 transitions. [2022-11-02 21:13:24,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-02 21:13:24,387 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:24,388 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2022-11-02 21:13:24,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 21:13:24,389 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)] === [2022-11-02 21:13:24,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:24,390 INFO L85 PathProgramCache]: Analyzing trace with hash 828887405, now seen corresponding path program 1 times [2022-11-02 21:13:24,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:13:24,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900679525] [2022-11-02 21:13:24,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:24,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:13:24,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:25,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 21:13:25,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:25,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:13:25,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:25,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 21:13:25,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:25,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-02 21:13:25,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:25,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-02 21:13:25,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:25,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:13:25,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:25,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-02 21:13:25,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:25,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-02 21:13:25,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:25,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-02 21:13:25,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:25,600 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-02 21:13:25,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:13:25,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900679525] [2022-11-02 21:13:25,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900679525] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:25,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:25,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 21:13:25,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833081447] [2022-11-02 21:13:25,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:25,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:13:25,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:13:25,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:13:25,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:13:25,604 INFO L87 Difference]: Start difference. First operand 3850 states and 5409 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-02 21:13:39,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:39,332 INFO L93 Difference]: Finished difference Result 4176 states and 5943 transitions. [2022-11-02 21:13:39,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:13:39,333 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 67 [2022-11-02 21:13:39,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:39,360 INFO L225 Difference]: With dead ends: 4176 [2022-11-02 21:13:39,360 INFO L226 Difference]: Without dead ends: 4174 [2022-11-02 21:13:39,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:13:39,364 INFO L413 NwaCegarLoop]: 4919 mSDtfsCounter, 5535 mSDsluCounter, 7938 mSDsCounter, 0 mSdLazyCounter, 6288 mSolverCounterSat, 2887 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6144 SdHoareTripleChecker+Valid, 12857 SdHoareTripleChecker+Invalid, 9175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2887 IncrementalHoareTripleChecker+Valid, 6288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:39,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6144 Valid, 12857 Invalid, 9175 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2887 Valid, 6288 Invalid, 0 Unknown, 0 Unchecked, 13.0s Time] [2022-11-02 21:13:39,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4174 states. [2022-11-02 21:13:39,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4174 to 3854. [2022-11-02 21:13:39,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3854 states, 2487 states have (on average 1.253317249698432) internal successors, (3117), 2590 states have internal predecessors, (3117), 1149 states have call successors, (1149), 216 states have call predecessors, (1149), 215 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2022-11-02 21:13:39,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3854 states to 3854 states and 5412 transitions. [2022-11-02 21:13:39,619 INFO L78 Accepts]: Start accepts. Automaton has 3854 states and 5412 transitions. Word has length 67 [2022-11-02 21:13:39,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:39,621 INFO L495 AbstractCegarLoop]: Abstraction has 3854 states and 5412 transitions. [2022-11-02 21:13:39,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-02 21:13:39,622 INFO L276 IsEmpty]: Start isEmpty. Operand 3854 states and 5412 transitions. [2022-11-02 21:13:39,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-02 21:13:39,623 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:39,624 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:39,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 21:13:39,624 INFO L420 AbstractCegarLoop]: === Iteration 3 === 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)] === [2022-11-02 21:13:39,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:39,625 INFO L85 PathProgramCache]: Analyzing trace with hash -541766877, now seen corresponding path program 1 times [2022-11-02 21:13:39,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:13:39,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935362853] [2022-11-02 21:13:39,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:39,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:13:39,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:40,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 21:13:40,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:40,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:13:40,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:40,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 21:13:40,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:40,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-02 21:13:40,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:40,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-02 21:13:40,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:40,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:13:40,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:40,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-02 21:13:40,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:40,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-02 21:13:40,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:40,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-02 21:13:40,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:40,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-02 21:13:40,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:40,802 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-02 21:13:40,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:13:40,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935362853] [2022-11-02 21:13:40,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935362853] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:40,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:40,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 21:13:40,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930163068] [2022-11-02 21:13:40,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:40,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:13:40,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:13:40,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:13:40,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:13:40,807 INFO L87 Difference]: Start difference. First operand 3854 states and 5412 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-02 21:13:54,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 21:13:55,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:55,612 INFO L93 Difference]: Finished difference Result 4180 states and 5946 transitions. [2022-11-02 21:13:55,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:13:55,613 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 72 [2022-11-02 21:13:55,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:55,640 INFO L225 Difference]: With dead ends: 4180 [2022-11-02 21:13:55,640 INFO L226 Difference]: Without dead ends: 4178 [2022-11-02 21:13:55,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:13:55,646 INFO L413 NwaCegarLoop]: 4921 mSDtfsCounter, 5534 mSDsluCounter, 7943 mSDsCounter, 0 mSdLazyCounter, 6287 mSolverCounterSat, 2886 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6142 SdHoareTripleChecker+Valid, 12864 SdHoareTripleChecker+Invalid, 9174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2886 IncrementalHoareTripleChecker+Valid, 6287 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:55,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6142 Valid, 12864 Invalid, 9174 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2886 Valid, 6287 Invalid, 1 Unknown, 0 Unchecked, 14.2s Time] [2022-11-02 21:13:55,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4178 states. [2022-11-02 21:13:56,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4178 to 3858. [2022-11-02 21:13:56,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3858 states, 2490 states have (on average 1.2530120481927711) internal successors, (3120), 2593 states have internal predecessors, (3120), 1149 states have call successors, (1149), 217 states have call predecessors, (1149), 216 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2022-11-02 21:13:56,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3858 states to 3858 states and 5415 transitions. [2022-11-02 21:13:56,074 INFO L78 Accepts]: Start accepts. Automaton has 3858 states and 5415 transitions. Word has length 72 [2022-11-02 21:13:56,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:56,075 INFO L495 AbstractCegarLoop]: Abstraction has 3858 states and 5415 transitions. [2022-11-02 21:13:56,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-02 21:13:56,077 INFO L276 IsEmpty]: Start isEmpty. Operand 3858 states and 5415 transitions. [2022-11-02 21:13:56,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-02 21:13:56,079 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:56,079 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:56,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 21:13:56,080 INFO L420 AbstractCegarLoop]: === Iteration 4 === 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)] === [2022-11-02 21:13:56,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:56,080 INFO L85 PathProgramCache]: Analyzing trace with hash -895841555, now seen corresponding path program 1 times [2022-11-02 21:13:56,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:13:56,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277229710] [2022-11-02 21:13:56,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:56,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:13:56,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:56,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 21:13:56,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:56,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:13:56,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:56,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 21:13:56,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:57,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-02 21:13:57,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:57,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-02 21:13:57,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:57,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:13:57,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:57,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-02 21:13:57,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:57,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-02 21:13:57,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:57,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-02 21:13:57,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:57,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-02 21:13:57,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:57,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-02 21:13:57,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:57,112 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-02 21:13:57,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:13:57,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277229710] [2022-11-02 21:13:57,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277229710] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:57,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:57,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 21:13:57,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726928557] [2022-11-02 21:13:57,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:57,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:13:57,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:13:57,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:13:57,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:13:57,116 INFO L87 Difference]: Start difference. First operand 3858 states and 5415 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-02 21:14:10,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 21:14:13,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 21:14:13,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:14:13,772 INFO L93 Difference]: Finished difference Result 4184 states and 5949 transitions. [2022-11-02 21:14:13,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:14:13,773 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 77 [2022-11-02 21:14:13,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:14:13,796 INFO L225 Difference]: With dead ends: 4184 [2022-11-02 21:14:13,797 INFO L226 Difference]: Without dead ends: 4182 [2022-11-02 21:14:13,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:14:13,801 INFO L413 NwaCegarLoop]: 4919 mSDtfsCounter, 5535 mSDsluCounter, 7938 mSDsCounter, 0 mSdLazyCounter, 6286 mSolverCounterSat, 2885 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6144 SdHoareTripleChecker+Valid, 12857 SdHoareTripleChecker+Invalid, 9173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2885 IncrementalHoareTripleChecker+Valid, 6286 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:14:13,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6144 Valid, 12857 Invalid, 9173 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2885 Valid, 6286 Invalid, 2 Unknown, 0 Unchecked, 16.1s Time] [2022-11-02 21:14:13,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4182 states. [2022-11-02 21:14:14,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4182 to 3862. [2022-11-02 21:14:14,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3862 states, 2493 states have (on average 1.2527075812274369) internal successors, (3123), 2596 states have internal predecessors, (3123), 1149 states have call successors, (1149), 218 states have call predecessors, (1149), 217 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2022-11-02 21:14:14,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3862 states to 3862 states and 5418 transitions. [2022-11-02 21:14:14,082 INFO L78 Accepts]: Start accepts. Automaton has 3862 states and 5418 transitions. Word has length 77 [2022-11-02 21:14:14,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:14:14,083 INFO L495 AbstractCegarLoop]: Abstraction has 3862 states and 5418 transitions. [2022-11-02 21:14:14,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-02 21:14:14,083 INFO L276 IsEmpty]: Start isEmpty. Operand 3862 states and 5418 transitions. [2022-11-02 21:14:14,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-02 21:14:14,085 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:14:14,085 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:14:14,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 21:14:14,086 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-02 21:14:14,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:14:14,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1057705693, now seen corresponding path program 1 times [2022-11-02 21:14:14,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:14:14,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968058499] [2022-11-02 21:14:14,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:14:14,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:14:14,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:14:14,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 21:14:14,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:14:14,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:14:14,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:14:14,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 21:14:14,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:14:14,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-02 21:14:14,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:14:14,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-02 21:14:15,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:14:15,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:14:15,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:14:15,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-02 21:14:15,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:14:15,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-02 21:14:15,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:14:15,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-02 21:14:15,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:14:15,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-02 21:14:15,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:14:15,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-02 21:14:15,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:14:15,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-02 21:14:15,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:14:15,107 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-02 21:14:15,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:14:15,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968058499] [2022-11-02 21:14:15,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968058499] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:14:15,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:14:15,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 21:14:15,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713130510] [2022-11-02 21:14:15,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:14:15,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:14:15,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:14:15,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:14:15,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:14:15,110 INFO L87 Difference]: Start difference. First operand 3862 states and 5418 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-02 21:14:28,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:14:28,002 INFO L93 Difference]: Finished difference Result 4188 states and 5952 transitions. [2022-11-02 21:14:28,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:14:28,004 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 82 [2022-11-02 21:14:28,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:14:28,036 INFO L225 Difference]: With dead ends: 4188 [2022-11-02 21:14:28,036 INFO L226 Difference]: Without dead ends: 4186 [2022-11-02 21:14:28,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:14:28,044 INFO L413 NwaCegarLoop]: 4922 mSDtfsCounter, 5532 mSDsluCounter, 7943 mSDsCounter, 0 mSdLazyCounter, 6288 mSolverCounterSat, 2882 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6142 SdHoareTripleChecker+Valid, 12865 SdHoareTripleChecker+Invalid, 9170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2882 IncrementalHoareTripleChecker+Valid, 6288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:14:28,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6142 Valid, 12865 Invalid, 9170 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2882 Valid, 6288 Invalid, 0 Unknown, 0 Unchecked, 12.3s Time] [2022-11-02 21:14:28,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4186 states. [2022-11-02 21:14:28,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4186 to 3866. [2022-11-02 21:14:28,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3866 states, 2496 states have (on average 1.2524038461538463) internal successors, (3126), 2599 states have internal predecessors, (3126), 1149 states have call successors, (1149), 219 states have call predecessors, (1149), 218 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2022-11-02 21:14:28,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3866 states to 3866 states and 5421 transitions. [2022-11-02 21:14:28,357 INFO L78 Accepts]: Start accepts. Automaton has 3866 states and 5421 transitions. Word has length 82 [2022-11-02 21:14:28,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:14:28,358 INFO L495 AbstractCegarLoop]: Abstraction has 3866 states and 5421 transitions. [2022-11-02 21:14:28,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-02 21:14:28,358 INFO L276 IsEmpty]: Start isEmpty. Operand 3866 states and 5421 transitions. [2022-11-02 21:14:28,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-02 21:14:28,366 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:14:28,367 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:14:28,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 21:14:28,368 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)] === [2022-11-02 21:14:28,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:14:28,368 INFO L85 PathProgramCache]: Analyzing trace with hash 686465499, now seen corresponding path program 1 times [2022-11-02 21:14:28,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:14:28,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372484079] [2022-11-02 21:14:28,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:14:28,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:14:28,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:14:29,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 21:14:29,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:14:29,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:14:29,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:14:29,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 21:14:29,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:14:29,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-02 21:14:29,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:14:29,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-02 21:14:29,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:14:29,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:14:29,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:14:29,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-02 21:14:29,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:14:29,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-02 21:14:29,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:14:29,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-02 21:14:29,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:14:29,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-02 21:14:29,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:14:29,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-02 21:14:29,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:14:29,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-02 21:14:29,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:14:29,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-02 21:14:29,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:14:29,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-02 21:14:29,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:14:29,566 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-11-02 21:14:29,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:14:29,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372484079] [2022-11-02 21:14:29,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372484079] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:14:29,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:14:29,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 21:14:29,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988875146] [2022-11-02 21:14:29,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:14:29,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:14:29,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:14:29,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:14:29,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:14:29,570 INFO L87 Difference]: Start difference. First operand 3866 states and 5421 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-02 21:14:41,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:14:41,960 INFO L93 Difference]: Finished difference Result 4192 states and 5955 transitions. [2022-11-02 21:14:41,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:14:41,961 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 102 [2022-11-02 21:14:41,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:14:41,986 INFO L225 Difference]: With dead ends: 4192 [2022-11-02 21:14:41,987 INFO L226 Difference]: Without dead ends: 4190 [2022-11-02 21:14:41,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:14:41,992 INFO L413 NwaCegarLoop]: 4925 mSDtfsCounter, 5520 mSDsluCounter, 7951 mSDsCounter, 0 mSdLazyCounter, 6288 mSolverCounterSat, 2881 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6127 SdHoareTripleChecker+Valid, 12876 SdHoareTripleChecker+Invalid, 9169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2881 IncrementalHoareTripleChecker+Valid, 6288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2022-11-02 21:14:41,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6127 Valid, 12876 Invalid, 9169 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2881 Valid, 6288 Invalid, 0 Unknown, 0 Unchecked, 11.8s Time] [2022-11-02 21:14:42,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4190 states. [2022-11-02 21:14:42,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4190 to 3870. [2022-11-02 21:14:42,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3870 states, 2499 states have (on average 1.2521008403361344) internal successors, (3129), 2602 states have internal predecessors, (3129), 1149 states have call successors, (1149), 220 states have call predecessors, (1149), 219 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2022-11-02 21:14:42,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3870 states to 3870 states and 5424 transitions. [2022-11-02 21:14:42,315 INFO L78 Accepts]: Start accepts. Automaton has 3870 states and 5424 transitions. Word has length 102 [2022-11-02 21:14:42,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:14:42,315 INFO L495 AbstractCegarLoop]: Abstraction has 3870 states and 5424 transitions. [2022-11-02 21:14:42,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-02 21:14:42,316 INFO L276 IsEmpty]: Start isEmpty. Operand 3870 states and 5424 transitions. [2022-11-02 21:14:42,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-02 21:14:42,318 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:14:42,318 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:14:42,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 21:14:42,319 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)] === [2022-11-02 21:14:42,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:14:42,319 INFO L85 PathProgramCache]: Analyzing trace with hash -174199179, now seen corresponding path program 1 times [2022-11-02 21:14:42,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:14:42,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34914028] [2022-11-02 21:14:42,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:14:42,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:14:42,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:14:43,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 21:14:43,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:14:43,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:14:43,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:14:43,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 21:14:43,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:14:43,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-02 21:14:43,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:14:43,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-02 21:14:43,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:14:43,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:14:43,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:14:43,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-02 21:14:43,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:14:43,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-02 21:14:43,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:14:43,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-02 21:14:43,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:14:43,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-02 21:14:43,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:14:43,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-02 21:14:43,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:14:43,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-02 21:14:43,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:14:43,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-02 21:14:43,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:14:43,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-02 21:14:43,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:14:43,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-02 21:14:43,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:14:43,407 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-11-02 21:14:43,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:14:43,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34914028] [2022-11-02 21:14:43,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34914028] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:14:43,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:14:43,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 21:14:43,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942964836] [2022-11-02 21:14:43,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:14:43,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:14:43,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:14:43,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:14:43,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:14:43,410 INFO L87 Difference]: Start difference. First operand 3870 states and 5424 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-02 21:14:58,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 21:15:00,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 21:15:00,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:15:00,881 INFO L93 Difference]: Finished difference Result 4196 states and 5958 transitions. [2022-11-02 21:15:00,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:15:00,882 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 107 [2022-11-02 21:15:00,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:15:00,901 INFO L225 Difference]: With dead ends: 4196 [2022-11-02 21:15:00,901 INFO L226 Difference]: Without dead ends: 4194 [2022-11-02 21:15:00,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:15:00,904 INFO L413 NwaCegarLoop]: 4925 mSDtfsCounter, 5521 mSDsluCounter, 7952 mSDsCounter, 0 mSdLazyCounter, 6286 mSolverCounterSat, 2880 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6127 SdHoareTripleChecker+Valid, 12877 SdHoareTripleChecker+Invalid, 9168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2880 IncrementalHoareTripleChecker+Valid, 6286 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.7s IncrementalHoareTripleChecker+Time [2022-11-02 21:15:00,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6127 Valid, 12877 Invalid, 9168 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2880 Valid, 6286 Invalid, 2 Unknown, 0 Unchecked, 16.7s Time] [2022-11-02 21:15:00,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4194 states. [2022-11-02 21:15:01,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4194 to 3874. [2022-11-02 21:15:01,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3874 states, 2502 states have (on average 1.2517985611510791) internal successors, (3132), 2605 states have internal predecessors, (3132), 1149 states have call successors, (1149), 221 states have call predecessors, (1149), 220 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2022-11-02 21:15:01,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3874 states to 3874 states and 5427 transitions. [2022-11-02 21:15:01,212 INFO L78 Accepts]: Start accepts. Automaton has 3874 states and 5427 transitions. Word has length 107 [2022-11-02 21:15:01,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:15:01,213 INFO L495 AbstractCegarLoop]: Abstraction has 3874 states and 5427 transitions. [2022-11-02 21:15:01,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-02 21:15:01,213 INFO L276 IsEmpty]: Start isEmpty. Operand 3874 states and 5427 transitions. [2022-11-02 21:15:01,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-02 21:15:01,215 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:15:01,215 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:15:01,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 21:15:01,216 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)] === [2022-11-02 21:15:01,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:15:01,216 INFO L85 PathProgramCache]: Analyzing trace with hash -670987813, now seen corresponding path program 1 times [2022-11-02 21:15:01,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:15:01,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801582226] [2022-11-02 21:15:01,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:15:01,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:15:01,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:02,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 21:15:02,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:02,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:15:02,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:02,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 21:15:02,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:02,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-02 21:15:02,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:02,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-02 21:15:02,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:02,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:15:02,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:02,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-02 21:15:02,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:02,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-02 21:15:02,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:02,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-02 21:15:02,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:02,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-02 21:15:02,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:02,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-02 21:15:02,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:02,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-02 21:15:02,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:02,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-02 21:15:02,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:02,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-02 21:15:02,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:02,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-02 21:15:02,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:02,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-02 21:15:02,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:02,188 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-11-02 21:15:02,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:15:02,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801582226] [2022-11-02 21:15:02,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801582226] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:15:02,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:15:02,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 21:15:02,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336179427] [2022-11-02 21:15:02,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:15:02,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:15:02,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:15:02,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:15:02,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:15:02,191 INFO L87 Difference]: Start difference. First operand 3874 states and 5427 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-02 21:15:16,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 21:15:16,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:15:16,931 INFO L93 Difference]: Finished difference Result 4200 states and 5961 transitions. [2022-11-02 21:15:16,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:15:16,932 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 112 [2022-11-02 21:15:16,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:15:16,953 INFO L225 Difference]: With dead ends: 4200 [2022-11-02 21:15:16,953 INFO L226 Difference]: Without dead ends: 4198 [2022-11-02 21:15:16,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:15:16,957 INFO L413 NwaCegarLoop]: 4924 mSDtfsCounter, 5520 mSDsluCounter, 7948 mSDsCounter, 0 mSdLazyCounter, 6287 mSolverCounterSat, 2879 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6128 SdHoareTripleChecker+Valid, 12872 SdHoareTripleChecker+Invalid, 9167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2879 IncrementalHoareTripleChecker+Valid, 6287 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:15:16,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6128 Valid, 12872 Invalid, 9167 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2879 Valid, 6287 Invalid, 1 Unknown, 0 Unchecked, 14.0s Time] [2022-11-02 21:15:16,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4198 states. [2022-11-02 21:15:17,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4198 to 3878. [2022-11-02 21:15:17,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3878 states, 2505 states have (on average 1.251497005988024) internal successors, (3135), 2608 states have internal predecessors, (3135), 1149 states have call successors, (1149), 222 states have call predecessors, (1149), 221 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2022-11-02 21:15:17,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3878 states to 3878 states and 5430 transitions. [2022-11-02 21:15:17,316 INFO L78 Accepts]: Start accepts. Automaton has 3878 states and 5430 transitions. Word has length 112 [2022-11-02 21:15:17,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:15:17,316 INFO L495 AbstractCegarLoop]: Abstraction has 3878 states and 5430 transitions. [2022-11-02 21:15:17,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-02 21:15:17,317 INFO L276 IsEmpty]: Start isEmpty. Operand 3878 states and 5430 transitions. [2022-11-02 21:15:17,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-02 21:15:17,319 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:15:17,319 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:15:17,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 21:15:17,319 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)] === [2022-11-02 21:15:17,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:15:17,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1161170211, now seen corresponding path program 1 times [2022-11-02 21:15:17,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:15:17,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92081135] [2022-11-02 21:15:17,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:15:17,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:15:17,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:18,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 21:15:18,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:18,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:15:18,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:18,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 21:15:18,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:18,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-02 21:15:18,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:18,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-02 21:15:18,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:18,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:15:18,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:18,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-02 21:15:18,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:18,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-02 21:15:18,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:18,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-02 21:15:18,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:18,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-02 21:15:18,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:18,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-02 21:15:18,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:18,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-02 21:15:18,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:18,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-02 21:15:18,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:18,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-02 21:15:18,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:18,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-02 21:15:18,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:18,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-02 21:15:18,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:18,235 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2022-11-02 21:15:18,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:15:18,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92081135] [2022-11-02 21:15:18,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92081135] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:15:18,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:15:18,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 21:15:18,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630368711] [2022-11-02 21:15:18,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:15:18,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:15:18,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:15:18,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:15:18,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:15:18,238 INFO L87 Difference]: Start difference. First operand 3878 states and 5430 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-02 21:15:31,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:15:31,239 INFO L93 Difference]: Finished difference Result 4204 states and 5964 transitions. [2022-11-02 21:15:31,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:15:31,240 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 102 [2022-11-02 21:15:31,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:15:31,262 INFO L225 Difference]: With dead ends: 4204 [2022-11-02 21:15:31,262 INFO L226 Difference]: Without dead ends: 4202 [2022-11-02 21:15:31,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:15:31,267 INFO L413 NwaCegarLoop]: 4923 mSDtfsCounter, 5532 mSDsluCounter, 7946 mSDsCounter, 0 mSdLazyCounter, 6288 mSolverCounterSat, 2878 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6141 SdHoareTripleChecker+Valid, 12869 SdHoareTripleChecker+Invalid, 9166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2878 IncrementalHoareTripleChecker+Valid, 6288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:15:31,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6141 Valid, 12869 Invalid, 9166 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2878 Valid, 6288 Invalid, 0 Unknown, 0 Unchecked, 12.3s Time] [2022-11-02 21:15:31,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4202 states. [2022-11-02 21:15:31,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4202 to 3882. [2022-11-02 21:15:31,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3882 states, 2508 states have (on average 1.2511961722488039) internal successors, (3138), 2611 states have internal predecessors, (3138), 1149 states have call successors, (1149), 223 states have call predecessors, (1149), 222 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2022-11-02 21:15:31,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3882 states to 3882 states and 5433 transitions. [2022-11-02 21:15:31,649 INFO L78 Accepts]: Start accepts. Automaton has 3882 states and 5433 transitions. Word has length 102 [2022-11-02 21:15:31,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:15:31,650 INFO L495 AbstractCegarLoop]: Abstraction has 3882 states and 5433 transitions. [2022-11-02 21:15:31,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-02 21:15:31,650 INFO L276 IsEmpty]: Start isEmpty. Operand 3882 states and 5433 transitions. [2022-11-02 21:15:31,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-02 21:15:31,653 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:15:31,654 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:15:31,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 21:15:31,654 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)] === [2022-11-02 21:15:31,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:15:31,655 INFO L85 PathProgramCache]: Analyzing trace with hash -2012732965, now seen corresponding path program 1 times [2022-11-02 21:15:31,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:15:31,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563622445] [2022-11-02 21:15:31,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:15:31,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:15:31,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:32,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 21:15:32,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:32,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:15:32,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:32,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 21:15:32,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:32,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-02 21:15:32,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:32,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-02 21:15:32,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:32,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:15:32,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:32,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-02 21:15:32,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:32,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-02 21:15:32,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:32,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-02 21:15:32,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:32,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-02 21:15:32,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:32,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-02 21:15:32,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:32,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-02 21:15:32,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:32,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-02 21:15:32,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:32,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-02 21:15:32,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:32,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-02 21:15:32,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:32,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-02 21:15:32,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:32,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-02 21:15:32,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:32,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-02 21:15:32,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:32,707 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-11-02 21:15:32,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:15:32,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563622445] [2022-11-02 21:15:32,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563622445] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:15:32,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:15:32,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 21:15:32,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997525027] [2022-11-02 21:15:32,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:15:32,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:15:32,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:15:32,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:15:32,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:15:32,709 INFO L87 Difference]: Start difference. First operand 3882 states and 5433 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-02 21:15:47,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 21:15:49,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:15:49,391 INFO L93 Difference]: Finished difference Result 4289 states and 6043 transitions. [2022-11-02 21:15:49,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 21:15:49,392 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 122 [2022-11-02 21:15:49,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:15:49,411 INFO L225 Difference]: With dead ends: 4289 [2022-11-02 21:15:49,411 INFO L226 Difference]: Without dead ends: 4287 [2022-11-02 21:15:49,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:15:49,416 INFO L413 NwaCegarLoop]: 4967 mSDtfsCounter, 5151 mSDsluCounter, 8337 mSDsCounter, 0 mSdLazyCounter, 6596 mSolverCounterSat, 2829 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5664 SdHoareTripleChecker+Valid, 13304 SdHoareTripleChecker+Invalid, 9426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2829 IncrementalHoareTripleChecker+Valid, 6596 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2022-11-02 21:15:49,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5664 Valid, 13304 Invalid, 9426 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2829 Valid, 6596 Invalid, 1 Unknown, 0 Unchecked, 15.9s Time] [2022-11-02 21:15:49,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4287 states. [2022-11-02 21:15:49,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4287 to 3965. [2022-11-02 21:15:49,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3965 states, 2564 states have (on average 1.2472698907956319) internal successors, (3198), 2667 states have internal predecessors, (3198), 1158 states have call successors, (1158), 241 states have call predecessors, (1158), 240 states have return successors, (1155), 1123 states have call predecessors, (1155), 1155 states have call successors, (1155) [2022-11-02 21:15:49,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3965 states to 3965 states and 5511 transitions. [2022-11-02 21:15:49,906 INFO L78 Accepts]: Start accepts. Automaton has 3965 states and 5511 transitions. Word has length 122 [2022-11-02 21:15:49,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:15:49,907 INFO L495 AbstractCegarLoop]: Abstraction has 3965 states and 5511 transitions. [2022-11-02 21:15:49,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-02 21:15:49,907 INFO L276 IsEmpty]: Start isEmpty. Operand 3965 states and 5511 transitions. [2022-11-02 21:15:49,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-02 21:15:49,910 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:15:49,910 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:15:49,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 21:15:49,910 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)] === [2022-11-02 21:15:49,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:15:49,911 INFO L85 PathProgramCache]: Analyzing trace with hash -312160907, now seen corresponding path program 1 times [2022-11-02 21:15:49,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:15:49,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35151721] [2022-11-02 21:15:49,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:15:49,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:15:50,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:50,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 21:15:50,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:50,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:15:50,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:50,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 21:15:50,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:50,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-02 21:15:50,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:50,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-02 21:15:50,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:50,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:15:50,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:50,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-02 21:15:50,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:50,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-02 21:15:50,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:50,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-02 21:15:50,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:50,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-02 21:15:50,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:50,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-02 21:15:50,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:50,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-02 21:15:50,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:50,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-02 21:15:50,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:50,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-02 21:15:50,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:50,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-02 21:15:50,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:50,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-02 21:15:50,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:50,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-02 21:15:50,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:50,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-02 21:15:50,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:50,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-02 21:15:50,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:15:50,920 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-11-02 21:15:50,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:15:50,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35151721] [2022-11-02 21:15:50,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35151721] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:15:50,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:15:50,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 21:15:50,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658327142] [2022-11-02 21:15:50,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:15:50,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:15:50,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:15:50,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:15:50,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:15:50,923 INFO L87 Difference]: Start difference. First operand 3965 states and 5511 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19)