./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5524c080-4b7b-44c7-9b7e-17cbd6fca659/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5524c080-4b7b-44c7-9b7e-17cbd6fca659/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5524c080-4b7b-44c7-9b7e-17cbd6fca659/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5524c080-4b7b-44c7-9b7e-17cbd6fca659/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5524c080-4b7b-44c7-9b7e-17cbd6fca659/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5524c080-4b7b-44c7-9b7e-17cbd6fca659/bin/uautomizer-TMbwUNV5ro --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 10193951df4eb6f67d99eaaa8758acfa57b6461ca38071389a41cbdc5c585dfb --- 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-8393723 [2022-11-18 19:53:35,274 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:53:35,277 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:53:35,313 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:53:35,315 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:53:35,320 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:53:35,323 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:53:35,324 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:53:35,326 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:53:35,327 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:53:35,328 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:53:35,329 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:53:35,329 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:53:35,330 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:53:35,331 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:53:35,332 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:53:35,333 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:53:35,334 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:53:35,335 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:53:35,337 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:53:35,349 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:53:35,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:53:35,356 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:53:35,359 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:53:35,366 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:53:35,374 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:53:35,375 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:53:35,376 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:53:35,376 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:53:35,377 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:53:35,379 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:53:35,380 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:53:35,381 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:53:35,382 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:53:35,384 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:53:35,387 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:53:35,388 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:53:35,389 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:53:35,389 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:53:35,390 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:53:35,391 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:53:35,393 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5524c080-4b7b-44c7-9b7e-17cbd6fca659/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-18 19:53:35,432 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:53:35,435 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:53:35,435 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:53:35,436 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:53:35,436 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:53:35,437 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:53:35,437 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:53:35,437 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:53:35,438 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:53:35,438 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:53:35,439 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:53:35,439 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:53:35,439 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:53:35,440 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:53:35,440 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:53:35,440 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:53:35,440 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:53:35,440 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:53:35,441 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:53:35,441 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:53:35,441 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:53:35,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:53:35,442 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:53:35,442 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:53:35,442 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:53:35,442 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:53:35,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:53:35,443 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:53:35,443 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:53:35,443 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:53:35,443 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_5524c080-4b7b-44c7-9b7e-17cbd6fca659/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5524c080-4b7b-44c7-9b7e-17cbd6fca659/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10193951df4eb6f67d99eaaa8758acfa57b6461ca38071389a41cbdc5c585dfb [2022-11-18 19:53:35,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:53:35,769 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:53:35,772 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:53:35,774 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:53:35,775 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:53:35,776 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5524c080-4b7b-44c7-9b7e-17cbd6fca659/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i [2022-11-18 19:53:35,849 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5524c080-4b7b-44c7-9b7e-17cbd6fca659/bin/uautomizer-TMbwUNV5ro/data/3395a9063/102b415e61d740258fea38f306486c50/FLAG03f9b1713 [2022-11-18 19:53:36,756 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:53:36,757 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5524c080-4b7b-44c7-9b7e-17cbd6fca659/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i [2022-11-18 19:53:36,844 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5524c080-4b7b-44c7-9b7e-17cbd6fca659/bin/uautomizer-TMbwUNV5ro/data/3395a9063/102b415e61d740258fea38f306486c50/FLAG03f9b1713 [2022-11-18 19:53:37,138 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5524c080-4b7b-44c7-9b7e-17cbd6fca659/bin/uautomizer-TMbwUNV5ro/data/3395a9063/102b415e61d740258fea38f306486c50 [2022-11-18 19:53:37,140 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:53:37,142 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:53:37,143 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:53:37,143 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:53:37,150 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:53:37,150 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:53:37" (1/1) ... [2022-11-18 19:53:37,151 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5165a80e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:37, skipping insertion in model container [2022-11-18 19:53:37,152 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:53:37" (1/1) ... [2022-11-18 19:53:37,159 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:53:37,282 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:53:39,979 WARN L234 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_5524c080-4b7b-44c7-9b7e-17cbd6fca659/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341176,341189] [2022-11-18 19:53:39,985 WARN L234 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_5524c080-4b7b-44c7-9b7e-17cbd6fca659/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341345,341358] [2022-11-18 19:53:39,986 WARN L234 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_5524c080-4b7b-44c7-9b7e-17cbd6fca659/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341512,341525] [2022-11-18 19:53:39,986 WARN L234 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_5524c080-4b7b-44c7-9b7e-17cbd6fca659/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341680,341693] [2022-11-18 19:53:40,014 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:53:40,062 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:53:40,536 WARN L234 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_5524c080-4b7b-44c7-9b7e-17cbd6fca659/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341176,341189] [2022-11-18 19:53:40,537 WARN L234 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_5524c080-4b7b-44c7-9b7e-17cbd6fca659/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341345,341358] [2022-11-18 19:53:40,538 WARN L234 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_5524c080-4b7b-44c7-9b7e-17cbd6fca659/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341512,341525] [2022-11-18 19:53:40,538 WARN L234 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_5524c080-4b7b-44c7-9b7e-17cbd6fca659/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341680,341693] [2022-11-18 19:53:40,547 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:53:40,744 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:53:40,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:40 WrapperNode [2022-11-18 19:53:40,745 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:53:40,746 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:53:40,747 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:53:40,747 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:53:40,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:40" (1/1) ... [2022-11-18 19:53:40,867 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:40" (1/1) ... [2022-11-18 19:53:41,129 INFO L138 Inliner]: procedures = 427, calls = 1759, calls flagged for inlining = 206, calls inlined = 187, statements flattened = 4697 [2022-11-18 19:53:41,130 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:53:41,131 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:53:41,132 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:53:41,132 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:53:41,141 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:40" (1/1) ... [2022-11-18 19:53:41,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:40" (1/1) ... [2022-11-18 19:53:41,191 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:40" (1/1) ... [2022-11-18 19:53:41,192 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:40" (1/1) ... [2022-11-18 19:53:41,329 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:40" (1/1) ... [2022-11-18 19:53:41,356 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:40" (1/1) ... [2022-11-18 19:53:41,391 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:40" (1/1) ... [2022-11-18 19:53:41,413 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:40" (1/1) ... [2022-11-18 19:53:41,449 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:53:41,451 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:53:41,451 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:53:41,453 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:53:41,454 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:40" (1/1) ... [2022-11-18 19:53:41,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:53:41,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5524c080-4b7b-44c7-9b7e-17cbd6fca659/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:53:41,486 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5524c080-4b7b-44c7-9b7e-17cbd6fca659/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:53:41,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5524c080-4b7b-44c7-9b7e-17cbd6fca659/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:53:41,536 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-18 19:53:41,536 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-18 19:53:41,536 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-18 19:53:41,536 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-18 19:53:41,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-18 19:53:41,537 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-18 19:53:41,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_82 [2022-11-18 19:53:41,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_82 [2022-11-18 19:53:41,537 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-18 19:53:41,537 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-18 19:53:41,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-18 19:53:41,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-18 19:53:41,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rr_driver_exit_13_2 [2022-11-18 19:53:41,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rr_driver_exit_13_2 [2022-11-18 19:53:41,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_rr_private [2022-11-18 19:53:41,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_rr_private [2022-11-18 19:53:41,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-18 19:53:41,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-18 19:53:41,539 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-18 19:53:41,539 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-18 19:53:41,539 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-18 19:53:41,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-18 19:53:41,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-18 19:53:41,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-18 19:53:41,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-18 19:53:41,541 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-18 19:53:41,541 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-18 19:53:41,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:53:41,541 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-18 19:53:41,541 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-18 19:53:41,542 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-18 19:53:41,542 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-18 19:53:41,542 INFO L130 BoogieDeclarations]: Found specification of procedure set_rraddr [2022-11-18 19:53:41,542 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rraddr [2022-11-18 19:53:41,542 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-18 19:53:41,543 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-18 19:53:41,543 INFO L130 BoogieDeclarations]: Found specification of procedure rr_read_eeprom_word [2022-11-18 19:53:41,543 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_read_eeprom_word [2022-11-18 19:53:41,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-18 19:53:41,543 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-18 19:53:41,544 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-18 19:53:41,544 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-18 19:53:41,544 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-18 19:53:41,544 INFO L130 BoogieDeclarations]: Found specification of procedure rr_read_eeprom [2022-11-18 19:53:41,544 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_read_eeprom [2022-11-18 19:53:41,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-18 19:53:41,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-18 19:53:41,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-18 19:53:41,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 19:53:41,545 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-18 19:53:41,546 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-18 19:53:41,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-18 19:53:41,546 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-18 19:53:41,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-18 19:53:41,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-18 19:53:41,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-18 19:53:41,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-18 19:53:41,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-18 19:53:41,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-18 19:53:41,547 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-18 19:53:41,547 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-18 19:53:41,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-18 19:53:41,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-18 19:53:41,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 19:53:41,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-18 19:53:41,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-18 19:53:41,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:53:41,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-18 19:53:41,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-18 19:53:41,549 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-18 19:53:41,549 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-18 19:53:41,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 19:53:41,550 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-18 19:53:41,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-18 19:53:41,550 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-18 19:53:41,550 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-18 19:53:41,550 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-18 19:53:41,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-18 19:53:41,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_rr_private [2022-11-18 19:53:41,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_rr_private [2022-11-18 19:53:41,551 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-18 19:53:41,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-18 19:53:41,552 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-18 19:53:41,552 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-18 19:53:41,552 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-18 19:53:41,552 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-18 19:53:41,552 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-18 19:53:41,553 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-18 19:53:41,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-18 19:53:41,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-18 19:53:41,554 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-18 19:53:41,554 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-18 19:53:41,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:53:41,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:53:41,555 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-18 19:53:41,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-18 19:53:41,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-18 19:53:41,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-18 19:53:41,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-18 19:53:41,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-18 19:53:41,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-18 19:53:41,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-18 19:53:41,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-18 19:53:41,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-18 19:53:41,556 INFO L130 BoogieDeclarations]: Found specification of procedure rr_remove_one [2022-11-18 19:53:41,557 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_remove_one [2022-11-18 19:53:41,557 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-18 19:53:41,557 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-18 19:53:41,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-18 19:53:41,557 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-18 19:53:41,558 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-18 19:53:41,558 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-18 19:53:41,558 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-18 19:53:41,558 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-18 19:53:41,558 INFO L130 BoogieDeclarations]: Found specification of procedure rr_init1 [2022-11-18 19:53:41,559 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_init1 [2022-11-18 19:53:41,559 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-18 19:53:41,559 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-18 19:53:41,559 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-18 19:53:41,559 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-18 19:53:41,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 19:53:41,560 INFO L130 BoogieDeclarations]: Found specification of procedure rr_open [2022-11-18 19:53:41,560 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_open [2022-11-18 19:53:41,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 19:53:41,560 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-18 19:53:41,560 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-18 19:53:41,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 19:53:41,561 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-18 19:53:41,561 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-18 19:53:41,561 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-18 19:53:41,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-18 19:53:41,562 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-18 19:53:41,562 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-18 19:53:41,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-18 19:53:41,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-18 19:53:41,562 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-18 19:53:41,562 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-18 19:53:41,563 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-18 19:53:41,563 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-18 19:53:41,563 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-18 19:53:41,563 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-18 19:53:41,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 19:53:41,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-18 19:53:41,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-18 19:53:41,564 INFO L130 BoogieDeclarations]: Found specification of procedure rr_raz_tx [2022-11-18 19:53:41,564 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_raz_tx [2022-11-18 19:53:41,564 INFO L130 BoogieDeclarations]: Found specification of procedure rr_close [2022-11-18 19:53:41,564 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_close [2022-11-18 19:53:41,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-18 19:53:41,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-18 19:53:41,565 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-18 19:53:41,565 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-18 19:53:41,565 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-18 19:53:41,565 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-18 19:53:41,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:53:41,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-18 19:53:41,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-18 19:53:41,566 INFO L130 BoogieDeclarations]: Found specification of procedure rr_raz_rx [2022-11-18 19:53:41,567 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_raz_rx [2022-11-18 19:53:42,553 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:53:42,565 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:53:43,484 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-18 19:53:45,836 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-18 19:53:45,992 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:53:46,020 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:53:46,020 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 19:53:46,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:53:46 BoogieIcfgContainer [2022-11-18 19:53:46,025 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:53:46,027 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:53:46,028 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:53:46,032 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:53:46,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:53:37" (1/3) ... [2022-11-18 19:53:46,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f652ae5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:53:46, skipping insertion in model container [2022-11-18 19:53:46,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:40" (2/3) ... [2022-11-18 19:53:46,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f652ae5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:53:46, skipping insertion in model container [2022-11-18 19:53:46,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:53:46" (3/3) ... [2022-11-18 19:53:46,035 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i [2022-11-18 19:53:46,056 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:53:46,056 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-18 19:53:46,191 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:53:46,203 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;@517b330a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:53:46,203 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-18 19:53:46,215 INFO L276 IsEmpty]: Start isEmpty. Operand has 1582 states, 1040 states have (on average 1.2740384615384615) internal successors, (1325), 1065 states have internal predecessors, (1325), 469 states have call successors, (469), 71 states have call predecessors, (469), 70 states have return successors, (463), 452 states have call predecessors, (463), 463 states have call successors, (463) [2022-11-18 19:53:46,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-18 19:53:46,246 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:46,247 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:46,248 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)] === [2022-11-18 19:53:46,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:46,255 INFO L85 PathProgramCache]: Analyzing trace with hash 806941783, now seen corresponding path program 1 times [2022-11-18 19:53:46,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:46,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102661797] [2022-11-18 19:53:46,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:46,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:46,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:46,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 19:53:46,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:47,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:53:47,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:47,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 19:53:47,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:47,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:53:47,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:47,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 19:53:47,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:47,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:53:47,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:47,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 19:53:47,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:47,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:53:47,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:47,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-18 19:53:47,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:47,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:53:47,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:47,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 19:53:47,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:47,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:53:47,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:47,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 19:53:47,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:47,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:53:47,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:47,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 19:53:47,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:47,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-18 19:53:47,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:47,222 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-11-18 19:53:47,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:53:47,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102661797] [2022-11-18 19:53:47,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102661797] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:53:47,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:53:47,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:53:47,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856435275] [2022-11-18 19:53:47,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:53:47,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:53:47,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:53:47,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:53:47,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:53:47,284 INFO L87 Difference]: Start difference. First operand has 1582 states, 1040 states have (on average 1.2740384615384615) internal successors, (1325), 1065 states have internal predecessors, (1325), 469 states have call successors, (469), 71 states have call predecessors, (469), 70 states have return successors, (463), 452 states have call predecessors, (463), 463 states have call successors, (463) Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-18 19:53:52,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:52,698 INFO L93 Difference]: Finished difference Result 4643 states and 6791 transitions. [2022-11-18 19:53:52,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:53:52,703 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 105 [2022-11-18 19:53:52,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:52,756 INFO L225 Difference]: With dead ends: 4643 [2022-11-18 19:53:52,757 INFO L226 Difference]: Without dead ends: 3070 [2022-11-18 19:53:52,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:53:52,775 INFO L413 NwaCegarLoop]: 1990 mSDtfsCounter, 2478 mSDsluCounter, 2265 mSDsCounter, 0 mSdLazyCounter, 2274 mSolverCounterSat, 1081 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2884 SdHoareTripleChecker+Valid, 4255 SdHoareTripleChecker+Invalid, 3355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1081 IncrementalHoareTripleChecker+Valid, 2274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:52,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2884 Valid, 4255 Invalid, 3355 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1081 Valid, 2274 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-11-18 19:53:52,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3070 states. [2022-11-18 19:53:53,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3070 to 3032. [2022-11-18 19:53:53,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3032 states, 2009 states have (on average 1.258337481333997) internal successors, (2528), 2058 states have internal predecessors, (2528), 884 states have call successors, (884), 137 states have call predecessors, (884), 136 states have return successors, (880), 858 states have call predecessors, (880), 880 states have call successors, (880) [2022-11-18 19:53:53,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3032 states to 3032 states and 4292 transitions. [2022-11-18 19:53:53,193 INFO L78 Accepts]: Start accepts. Automaton has 3032 states and 4292 transitions. Word has length 105 [2022-11-18 19:53:53,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:53,194 INFO L495 AbstractCegarLoop]: Abstraction has 3032 states and 4292 transitions. [2022-11-18 19:53:53,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-18 19:53:53,195 INFO L276 IsEmpty]: Start isEmpty. Operand 3032 states and 4292 transitions. [2022-11-18 19:53:53,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-18 19:53:53,200 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:53,200 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:53,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:53:53,201 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-18 19:53:53,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:53,201 INFO L85 PathProgramCache]: Analyzing trace with hash 48046076, now seen corresponding path program 1 times [2022-11-18 19:53:53,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:53,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409022644] [2022-11-18 19:53:53,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:53,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:53,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:53,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 19:53:53,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:53,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:53:53,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:53,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 19:53:53,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:53,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:53:53,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:53,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 19:53:53,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:53,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:53:53,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:53,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 19:53:53,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:53,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:53:53,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:53,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-18 19:53:53,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:53,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:53:53,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:53,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 19:53:53,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:53,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:53:53,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:53,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 19:53:53,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:53,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:53:53,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:53,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 19:53:53,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:53,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-18 19:53:53,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:53,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-18 19:53:53,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:53,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-18 19:53:53,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:53,518 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-11-18 19:53:53,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:53:53,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409022644] [2022-11-18 19:53:53,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409022644] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:53:53,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:53:53,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:53:53,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23643894] [2022-11-18 19:53:53,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:53:53,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:53:53,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:53:53,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:53:53,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:53:53,523 INFO L87 Difference]: Start difference. First operand 3032 states and 4292 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-18 19:53:58,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:58,835 INFO L93 Difference]: Finished difference Result 8572 states and 12159 transitions. [2022-11-18 19:53:58,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:53:58,836 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 113 [2022-11-18 19:53:58,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:58,875 INFO L225 Difference]: With dead ends: 8572 [2022-11-18 19:53:58,876 INFO L226 Difference]: Without dead ends: 5559 [2022-11-18 19:53:58,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:53:58,890 INFO L413 NwaCegarLoop]: 1954 mSDtfsCounter, 2184 mSDsluCounter, 2289 mSDsCounter, 0 mSdLazyCounter, 2167 mSolverCounterSat, 1091 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2534 SdHoareTripleChecker+Valid, 4243 SdHoareTripleChecker+Invalid, 3258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1091 IncrementalHoareTripleChecker+Valid, 2167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:58,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2534 Valid, 4243 Invalid, 3258 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1091 Valid, 2167 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-11-18 19:53:58,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5559 states. [2022-11-18 19:53:59,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5559 to 5471. [2022-11-18 19:53:59,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5471 states, 3590 states have (on average 1.2504178272980502) internal successors, (4489), 3668 states have internal predecessors, (4489), 1613 states have call successors, (1613), 270 states have call predecessors, (1613), 265 states have return successors, (1625), 1568 states have call predecessors, (1625), 1609 states have call successors, (1625) [2022-11-18 19:53:59,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5471 states to 5471 states and 7727 transitions. [2022-11-18 19:53:59,388 INFO L78 Accepts]: Start accepts. Automaton has 5471 states and 7727 transitions. Word has length 113 [2022-11-18 19:53:59,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:59,388 INFO L495 AbstractCegarLoop]: Abstraction has 5471 states and 7727 transitions. [2022-11-18 19:53:59,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-18 19:53:59,389 INFO L276 IsEmpty]: Start isEmpty. Operand 5471 states and 7727 transitions. [2022-11-18 19:53:59,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-18 19:53:59,392 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:59,392 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:59,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:53:59,393 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-18 19:53:59,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:59,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1737203616, now seen corresponding path program 1 times [2022-11-18 19:53:59,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:59,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491473836] [2022-11-18 19:53:59,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:59,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:59,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:59,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 19:53:59,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:59,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:53:59,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:59,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 19:53:59,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:59,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:53:59,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:59,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 19:53:59,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:59,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:53:59,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:59,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 19:53:59,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:59,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:53:59,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:59,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-18 19:53:59,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:59,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:53:59,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:59,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 19:53:59,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:59,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:53:59,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:59,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 19:53:59,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:59,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:53:59,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:59,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 19:53:59,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:59,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-18 19:53:59,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:59,819 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-11-18 19:53:59,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:53:59,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491473836] [2022-11-18 19:53:59,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491473836] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:53:59,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:53:59,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:53:59,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226412988] [2022-11-18 19:53:59,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:53:59,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:53:59,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:53:59,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:53:59,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:53:59,827 INFO L87 Difference]: Start difference. First operand 5471 states and 7727 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-18 19:54:04,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:54:04,335 INFO L93 Difference]: Finished difference Result 10959 states and 15513 transitions. [2022-11-18 19:54:04,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:54:04,336 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 116 [2022-11-18 19:54:04,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:54:04,375 INFO L225 Difference]: With dead ends: 10959 [2022-11-18 19:54:04,375 INFO L226 Difference]: Without dead ends: 5507 [2022-11-18 19:54:04,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:54:04,405 INFO L413 NwaCegarLoop]: 1944 mSDtfsCounter, 1787 mSDsluCounter, 2253 mSDsCounter, 0 mSdLazyCounter, 2250 mSolverCounterSat, 848 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2128 SdHoareTripleChecker+Valid, 4197 SdHoareTripleChecker+Invalid, 3098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 848 IncrementalHoareTripleChecker+Valid, 2250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:54:04,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2128 Valid, 4197 Invalid, 3098 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [848 Valid, 2250 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-11-18 19:54:04,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5507 states. [2022-11-18 19:54:04,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5507 to 5407. [2022-11-18 19:54:04,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5407 states, 3507 states have (on average 1.2437981180496152) internal successors, (4362), 3584 states have internal predecessors, (4362), 1611 states have call successors, (1611), 291 states have call predecessors, (1611), 286 states have return successors, (1615), 1565 states have call predecessors, (1615), 1607 states have call successors, (1615) [2022-11-18 19:54:04,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5407 states to 5407 states and 7588 transitions. [2022-11-18 19:54:04,850 INFO L78 Accepts]: Start accepts. Automaton has 5407 states and 7588 transitions. Word has length 116 [2022-11-18 19:54:04,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:54:04,850 INFO L495 AbstractCegarLoop]: Abstraction has 5407 states and 7588 transitions. [2022-11-18 19:54:04,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-18 19:54:04,852 INFO L276 IsEmpty]: Start isEmpty. Operand 5407 states and 7588 transitions. [2022-11-18 19:54:04,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-18 19:54:04,855 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:54:04,855 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:54:04,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 19:54:04,856 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-18 19:54:04,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:54:04,857 INFO L85 PathProgramCache]: Analyzing trace with hash 566367727, now seen corresponding path program 1 times [2022-11-18 19:54:04,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:54:04,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659645649] [2022-11-18 19:54:04,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:54:04,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:54:04,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:05,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 19:54:05,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:05,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:05,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:05,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 19:54:05,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:05,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:05,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:05,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 19:54:05,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:05,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:05,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:05,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 19:54:05,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:05,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:05,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:05,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-18 19:54:05,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:05,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:05,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:05,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 19:54:05,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:05,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:05,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:05,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 19:54:05,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:05,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:05,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:05,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 19:54:05,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:05,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-18 19:54:05,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:05,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-18 19:54:05,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:05,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-18 19:54:05,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:05,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:05,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:05,204 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2022-11-18 19:54:05,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:54:05,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659645649] [2022-11-18 19:54:05,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659645649] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:54:05,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:54:05,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:54:05,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132075940] [2022-11-18 19:54:05,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:54:05,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:54:05,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:54:05,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:54:05,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:54:05,207 INFO L87 Difference]: Start difference. First operand 5407 states and 7588 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-18 19:54:10,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:54:10,242 INFO L93 Difference]: Finished difference Result 14337 states and 20154 transitions. [2022-11-18 19:54:10,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:54:10,243 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 133 [2022-11-18 19:54:10,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:54:10,298 INFO L225 Difference]: With dead ends: 14337 [2022-11-18 19:54:10,298 INFO L226 Difference]: Without dead ends: 8949 [2022-11-18 19:54:10,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:54:10,322 INFO L413 NwaCegarLoop]: 1935 mSDtfsCounter, 2232 mSDsluCounter, 2263 mSDsCounter, 0 mSdLazyCounter, 2199 mSolverCounterSat, 1080 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2582 SdHoareTripleChecker+Valid, 4198 SdHoareTripleChecker+Invalid, 3279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1080 IncrementalHoareTripleChecker+Valid, 2199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-18 19:54:10,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2582 Valid, 4198 Invalid, 3279 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1080 Valid, 2199 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-11-18 19:54:10,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8949 states. [2022-11-18 19:54:10,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8949 to 8812. [2022-11-18 19:54:10,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8812 states, 5700 states have (on average 1.2392982456140351) internal successors, (7064), 5839 states have internal predecessors, (7064), 2630 states have call successors, (2630), 490 states have call predecessors, (2630), 479 states have return successors, (2642), 2533 states have call predecessors, (2642), 2626 states have call successors, (2642) [2022-11-18 19:54:10,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8812 states to 8812 states and 12336 transitions. [2022-11-18 19:54:10,932 INFO L78 Accepts]: Start accepts. Automaton has 8812 states and 12336 transitions. Word has length 133 [2022-11-18 19:54:10,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:54:10,934 INFO L495 AbstractCegarLoop]: Abstraction has 8812 states and 12336 transitions. [2022-11-18 19:54:10,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-18 19:54:10,934 INFO L276 IsEmpty]: Start isEmpty. Operand 8812 states and 12336 transitions. [2022-11-18 19:54:10,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-18 19:54:10,937 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:54:10,937 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:54:10,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 19:54:10,938 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-18 19:54:10,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:54:10,938 INFO L85 PathProgramCache]: Analyzing trace with hash 2138302471, now seen corresponding path program 1 times [2022-11-18 19:54:10,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:54:10,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733848742] [2022-11-18 19:54:10,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:54:10,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:54:11,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:11,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 19:54:11,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:11,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:11,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:11,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 19:54:11,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:11,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:11,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:11,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 19:54:11,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:11,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:11,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:11,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 19:54:11,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:11,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:11,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:11,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-18 19:54:11,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:11,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:11,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:11,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 19:54:11,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:11,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:11,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:11,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 19:54:11,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:11,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:11,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:11,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 19:54:11,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:11,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-18 19:54:11,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:11,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-18 19:54:11,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:11,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-18 19:54:11,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:11,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-18 19:54:11,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:11,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-18 19:54:11,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:11,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-18 19:54:11,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:11,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-18 19:54:11,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:11,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-18 19:54:11,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:11,361 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2022-11-18 19:54:11,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:54:11,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733848742] [2022-11-18 19:54:11,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733848742] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:54:11,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:54:11,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:54:11,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5712491] [2022-11-18 19:54:11,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:54:11,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:54:11,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:54:11,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:54:11,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:54:11,364 INFO L87 Difference]: Start difference. First operand 8812 states and 12336 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-18 19:54:19,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:54:19,353 INFO L93 Difference]: Finished difference Result 25507 states and 35896 transitions. [2022-11-18 19:54:19,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 19:54:19,354 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 144 [2022-11-18 19:54:19,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:54:19,437 INFO L225 Difference]: With dead ends: 25507 [2022-11-18 19:54:19,437 INFO L226 Difference]: Without dead ends: 16714 [2022-11-18 19:54:19,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-18 19:54:19,477 INFO L413 NwaCegarLoop]: 2277 mSDtfsCounter, 2971 mSDsluCounter, 3375 mSDsCounter, 0 mSdLazyCounter, 3589 mSolverCounterSat, 2162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3322 SdHoareTripleChecker+Valid, 5652 SdHoareTripleChecker+Invalid, 5751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2162 IncrementalHoareTripleChecker+Valid, 3589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:54:19,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3322 Valid, 5652 Invalid, 5751 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2162 Valid, 3589 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2022-11-18 19:54:19,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16714 states. [2022-11-18 19:54:20,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16714 to 15617. [2022-11-18 19:54:20,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15617 states, 10316 states have (on average 1.2439899185730903) internal successors, (12833), 10598 states have internal predecessors, (12833), 4444 states have call successors, (4444), 873 states have call predecessors, (4444), 854 states have return successors, (4488), 4238 states have call predecessors, (4488), 4440 states have call successors, (4488) [2022-11-18 19:54:20,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15617 states to 15617 states and 21765 transitions. [2022-11-18 19:54:20,825 INFO L78 Accepts]: Start accepts. Automaton has 15617 states and 21765 transitions. Word has length 144 [2022-11-18 19:54:20,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:54:20,825 INFO L495 AbstractCegarLoop]: Abstraction has 15617 states and 21765 transitions. [2022-11-18 19:54:20,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-18 19:54:20,826 INFO L276 IsEmpty]: Start isEmpty. Operand 15617 states and 21765 transitions. [2022-11-18 19:54:20,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-11-18 19:54:20,829 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:54:20,829 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:54:20,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 19:54:20,830 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)] === [2022-11-18 19:54:20,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:54:20,831 INFO L85 PathProgramCache]: Analyzing trace with hash -2032221012, now seen corresponding path program 1 times [2022-11-18 19:54:20,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:54:20,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963615122] [2022-11-18 19:54:20,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:54:20,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:54:20,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:20,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 19:54:20,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:21,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:21,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:21,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 19:54:21,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:21,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:21,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:21,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 19:54:21,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:21,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:21,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:21,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 19:54:21,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:21,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:21,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:21,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-18 19:54:21,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:21,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:21,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:21,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 19:54:21,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:21,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:21,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:21,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 19:54:21,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:21,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:21,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:21,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 19:54:21,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:21,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 19:54:21,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:21,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-18 19:54:21,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:21,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-18 19:54:21,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:21,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-18 19:54:21,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:21,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:21,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:21,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-18 19:54:21,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:21,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-18 19:54:21,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:21,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-11-18 19:54:21,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:21,159 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2022-11-18 19:54:21,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:54:21,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963615122] [2022-11-18 19:54:21,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963615122] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:54:21,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:54:21,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:54:21,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659245655] [2022-11-18 19:54:21,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:54:21,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:54:21,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:54:21,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:54:21,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:54:21,162 INFO L87 Difference]: Start difference. First operand 15617 states and 21765 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-18 19:54:26,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:54:26,659 INFO L93 Difference]: Finished difference Result 45091 states and 63103 transitions. [2022-11-18 19:54:26,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:54:26,660 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 161 [2022-11-18 19:54:26,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:54:26,803 INFO L225 Difference]: With dead ends: 45091 [2022-11-18 19:54:26,803 INFO L226 Difference]: Without dead ends: 30037 [2022-11-18 19:54:26,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:54:26,851 INFO L413 NwaCegarLoop]: 2732 mSDtfsCounter, 2304 mSDsluCounter, 2790 mSDsCounter, 0 mSdLazyCounter, 2436 mSolverCounterSat, 809 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2704 SdHoareTripleChecker+Valid, 5522 SdHoareTripleChecker+Invalid, 3245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 809 IncrementalHoareTripleChecker+Valid, 2436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:54:26,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2704 Valid, 5522 Invalid, 3245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [809 Valid, 2436 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-11-18 19:54:26,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30037 states. [2022-11-18 19:54:29,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30037 to 29675. [2022-11-18 19:54:29,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29675 states, 19640 states have (on average 1.245112016293279) internal successors, (24454), 20144 states have internal predecessors, (24454), 8415 states have call successors, (8415), 1646 states have call predecessors, (8415), 1617 states have return successors, (8507), 8069 states have call predecessors, (8507), 8411 states have call successors, (8507) [2022-11-18 19:54:29,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29675 states to 29675 states and 41376 transitions. [2022-11-18 19:54:29,241 INFO L78 Accepts]: Start accepts. Automaton has 29675 states and 41376 transitions. Word has length 161 [2022-11-18 19:54:29,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:54:29,241 INFO L495 AbstractCegarLoop]: Abstraction has 29675 states and 41376 transitions. [2022-11-18 19:54:29,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-18 19:54:29,242 INFO L276 IsEmpty]: Start isEmpty. Operand 29675 states and 41376 transitions. [2022-11-18 19:54:29,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-11-18 19:54:29,246 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:54:29,247 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:54:29,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 19:54:29,247 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)] === [2022-11-18 19:54:29,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:54:29,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1891672402, now seen corresponding path program 1 times [2022-11-18 19:54:29,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:54:29,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011712430] [2022-11-18 19:54:29,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:54:29,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:54:29,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:29,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 19:54:29,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:29,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:29,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:29,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 19:54:29,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:29,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:29,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:29,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 19:54:29,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:29,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:29,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:29,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 19:54:29,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:29,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:29,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:29,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-18 19:54:29,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:29,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:29,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:29,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 19:54:29,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:29,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:29,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:29,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 19:54:29,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:29,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:29,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:29,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 19:54:29,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:29,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 19:54:29,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:29,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-18 19:54:29,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:29,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-18 19:54:29,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:29,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-18 19:54:29,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:29,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:29,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:29,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-18 19:54:29,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:29,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-18 19:54:29,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:29,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-11-18 19:54:29,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:29,961 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-18 19:54:29,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:54:29,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011712430] [2022-11-18 19:54:29,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011712430] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:54:29,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:54:29,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 19:54:29,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073632220] [2022-11-18 19:54:29,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:54:29,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:54:29,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:54:29,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:54:29,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:54:29,964 INFO L87 Difference]: Start difference. First operand 29675 states and 41376 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-11-18 19:54:34,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:54:34,952 INFO L93 Difference]: Finished difference Result 30039 states and 42016 transitions. [2022-11-18 19:54:34,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 19:54:34,953 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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 161 [2022-11-18 19:54:34,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:54:35,081 INFO L225 Difference]: With dead ends: 30039 [2022-11-18 19:54:35,081 INFO L226 Difference]: Without dead ends: 30037 [2022-11-18 19:54:35,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:54:35,101 INFO L413 NwaCegarLoop]: 1643 mSDtfsCounter, 2063 mSDsluCounter, 3616 mSDsCounter, 0 mSdLazyCounter, 2699 mSolverCounterSat, 781 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2368 SdHoareTripleChecker+Valid, 5259 SdHoareTripleChecker+Invalid, 3480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 781 IncrementalHoareTripleChecker+Valid, 2699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-18 19:54:35,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2368 Valid, 5259 Invalid, 3480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [781 Valid, 2699 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-18 19:54:35,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30037 states. [2022-11-18 19:54:37,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30037 to 29679. [2022-11-18 19:54:37,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29679 states, 19643 states have (on average 1.2450745812757726) internal successors, (24457), 20147 states have internal predecessors, (24457), 8415 states have call successors, (8415), 1647 states have call predecessors, (8415), 1618 states have return successors, (8507), 8069 states have call predecessors, (8507), 8411 states have call successors, (8507) [2022-11-18 19:54:37,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29679 states to 29679 states and 41379 transitions. [2022-11-18 19:54:37,321 INFO L78 Accepts]: Start accepts. Automaton has 29679 states and 41379 transitions. Word has length 161 [2022-11-18 19:54:37,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:54:37,322 INFO L495 AbstractCegarLoop]: Abstraction has 29679 states and 41379 transitions. [2022-11-18 19:54:37,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-11-18 19:54:37,322 INFO L276 IsEmpty]: Start isEmpty. Operand 29679 states and 41379 transitions. [2022-11-18 19:54:37,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-18 19:54:37,326 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:54:37,326 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:54:37,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 19:54:37,326 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-18 19:54:37,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:54:37,327 INFO L85 PathProgramCache]: Analyzing trace with hash -253097697, now seen corresponding path program 1 times [2022-11-18 19:54:37,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:54:37,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063770654] [2022-11-18 19:54:37,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:54:37,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:54:37,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:37,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 19:54:37,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:37,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:37,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:37,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 19:54:37,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:37,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:37,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:37,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 19:54:37,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:37,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:37,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:37,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 19:54:37,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:37,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:37,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:37,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-18 19:54:37,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:37,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:37,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:37,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 19:54:37,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:37,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:37,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:37,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 19:54:37,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:37,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:37,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:37,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 19:54:37,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:37,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 19:54:37,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:37,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-18 19:54:37,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:37,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-18 19:54:37,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:37,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-18 19:54:37,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:37,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-18 19:54:37,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:37,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-11-18 19:54:37,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:37,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-18 19:54:37,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:37,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-18 19:54:37,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:37,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-18 19:54:37,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:37,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-18 19:54:37,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:37,941 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2022-11-18 19:54:37,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:54:37,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063770654] [2022-11-18 19:54:37,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063770654] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:54:37,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:54:37,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:54:37,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374610146] [2022-11-18 19:54:37,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:54:37,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:54:37,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:54:37,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:54:37,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:54:37,944 INFO L87 Difference]: Start difference. First operand 29679 states and 41379 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-18 19:54:48,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:54:48,731 INFO L93 Difference]: Finished difference Result 91767 states and 129087 transitions. [2022-11-18 19:54:48,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 19:54:48,732 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 167 [2022-11-18 19:54:48,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:54:48,962 INFO L225 Difference]: With dead ends: 91767 [2022-11-18 19:54:48,962 INFO L226 Difference]: Without dead ends: 62107 [2022-11-18 19:54:49,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-18 19:54:49,206 INFO L413 NwaCegarLoop]: 2176 mSDtfsCounter, 3144 mSDsluCounter, 3212 mSDsCounter, 0 mSdLazyCounter, 3668 mSolverCounterSat, 2271 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3536 SdHoareTripleChecker+Valid, 5388 SdHoareTripleChecker+Invalid, 5939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2271 IncrementalHoareTripleChecker+Valid, 3668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:54:49,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3536 Valid, 5388 Invalid, 5939 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2271 Valid, 3668 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2022-11-18 19:54:49,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62107 states. [2022-11-18 19:54:52,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62107 to 58067. [2022-11-18 19:54:52,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58067 states, 38444 states have (on average 1.244979710748101) internal successors, (47862), 39462 states have internal predecessors, (47862), 16454 states have call successors, (16454), 3223 states have call predecessors, (16454), 3166 states have return successors, (16642), 15749 states have call predecessors, (16642), 16450 states have call successors, (16642) [2022-11-18 19:54:53,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58067 states to 58067 states and 80958 transitions. [2022-11-18 19:54:53,168 INFO L78 Accepts]: Start accepts. Automaton has 58067 states and 80958 transitions. Word has length 167 [2022-11-18 19:54:53,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:54:53,170 INFO L495 AbstractCegarLoop]: Abstraction has 58067 states and 80958 transitions. [2022-11-18 19:54:53,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-18 19:54:53,170 INFO L276 IsEmpty]: Start isEmpty. Operand 58067 states and 80958 transitions. [2022-11-18 19:54:53,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-11-18 19:54:53,173 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:54:53,173 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:54:53,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 19:54:53,174 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)] === [2022-11-18 19:54:53,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:54:53,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1447435435, now seen corresponding path program 1 times [2022-11-18 19:54:53,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:54:53,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794881211] [2022-11-18 19:54:53,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:54:53,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:54:53,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:53,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 19:54:53,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:53,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:53,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:53,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 19:54:53,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:54,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:54,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:54,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 19:54:54,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:54,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:54,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:54,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 19:54:54,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:54,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:54,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:54,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-18 19:54:54,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:54,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:54,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:54,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 19:54:54,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:54,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:54,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:54,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 19:54:54,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:54,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:54,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:54,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 19:54:54,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:54,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 19:54:54,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:54,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-18 19:54:54,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:54,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-18 19:54:54,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:54,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-18 19:54:54,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:54,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:54,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:54,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-18 19:54:54,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:54,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-18 19:54:54,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:54,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-11-18 19:54:54,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:54,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-18 19:54:54,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:54,181 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-18 19:54:54,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:54:54,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794881211] [2022-11-18 19:54:54,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794881211] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:54:54,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:54:54,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 19:54:54,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891573361] [2022-11-18 19:54:54,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:54:54,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:54:54,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:54:54,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:54:54,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:54:54,185 INFO L87 Difference]: Start difference. First operand 58067 states and 80958 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-18 19:55:00,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:55:00,555 INFO L93 Difference]: Finished difference Result 58769 states and 82198 transitions. [2022-11-18 19:55:00,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 19:55:00,556 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 166 [2022-11-18 19:55:00,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:55:00,732 INFO L225 Difference]: With dead ends: 58769 [2022-11-18 19:55:00,732 INFO L226 Difference]: Without dead ends: 58767 [2022-11-18 19:55:00,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:55:00,749 INFO L413 NwaCegarLoop]: 1643 mSDtfsCounter, 2055 mSDsluCounter, 3616 mSDsCounter, 0 mSdLazyCounter, 2702 mSolverCounterSat, 780 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2360 SdHoareTripleChecker+Valid, 5259 SdHoareTripleChecker+Invalid, 3482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 780 IncrementalHoareTripleChecker+Valid, 2702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:55:00,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2360 Valid, 5259 Invalid, 3482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [780 Valid, 2702 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-18 19:55:00,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58767 states. [2022-11-18 19:55:04,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58767 to 58071. [2022-11-18 19:55:04,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58071 states, 38447 states have (on average 1.2449605951049496) internal successors, (47865), 39465 states have internal predecessors, (47865), 16454 states have call successors, (16454), 3224 states have call predecessors, (16454), 3167 states have return successors, (16642), 15749 states have call predecessors, (16642), 16450 states have call successors, (16642) [2022-11-18 19:55:04,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58071 states to 58071 states and 80961 transitions. [2022-11-18 19:55:04,326 INFO L78 Accepts]: Start accepts. Automaton has 58071 states and 80961 transitions. Word has length 166 [2022-11-18 19:55:04,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:55:04,327 INFO L495 AbstractCegarLoop]: Abstraction has 58071 states and 80961 transitions. [2022-11-18 19:55:04,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-18 19:55:04,327 INFO L276 IsEmpty]: Start isEmpty. Operand 58071 states and 80961 transitions. [2022-11-18 19:55:04,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-11-18 19:55:04,331 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:55:04,331 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:55:04,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 19:55:04,332 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)] === [2022-11-18 19:55:04,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:55:04,332 INFO L85 PathProgramCache]: Analyzing trace with hash 918858894, now seen corresponding path program 1 times [2022-11-18 19:55:04,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:55:04,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437537472] [2022-11-18 19:55:04,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:55:04,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:55:04,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:04,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 19:55:04,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:04,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:55:04,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:04,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 19:55:04,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:04,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:55:04,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:04,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 19:55:04,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:04,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:55:04,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:04,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 19:55:04,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:04,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:55:04,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:04,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-18 19:55:04,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:04,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:55:04,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:04,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 19:55:04,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:04,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:55:04,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:04,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 19:55:04,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:04,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:55:04,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:04,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 19:55:04,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:04,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 19:55:04,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:04,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-18 19:55:04,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:04,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-18 19:55:04,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:04,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-18 19:55:04,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:04,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:55:04,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:04,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-18 19:55:04,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:04,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-18 19:55:04,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:04,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-11-18 19:55:04,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:04,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-18 19:55:04,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:04,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-18 19:55:04,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:04,886 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2022-11-18 19:55:04,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:55:04,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437537472] [2022-11-18 19:55:04,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437537472] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:55:04,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:55:04,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 19:55:04,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776114238] [2022-11-18 19:55:04,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:55:04,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:55:04,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:55:04,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:55:04,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:55:04,889 INFO L87 Difference]: Start difference. First operand 58071 states and 80961 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 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) [2022-11-18 19:55:11,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:55:11,489 INFO L93 Difference]: Finished difference Result 58773 states and 82201 transitions. [2022-11-18 19:55:11,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 19:55:11,490 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 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 171 [2022-11-18 19:55:11,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:55:11,658 INFO L225 Difference]: With dead ends: 58773 [2022-11-18 19:55:11,658 INFO L226 Difference]: Without dead ends: 58771 [2022-11-18 19:55:11,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:55:11,677 INFO L413 NwaCegarLoop]: 1643 mSDtfsCounter, 2055 mSDsluCounter, 3616 mSDsCounter, 0 mSdLazyCounter, 2702 mSolverCounterSat, 779 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2360 SdHoareTripleChecker+Valid, 5259 SdHoareTripleChecker+Invalid, 3481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 779 IncrementalHoareTripleChecker+Valid, 2702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-18 19:55:11,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2360 Valid, 5259 Invalid, 3481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [779 Valid, 2702 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-18 19:55:11,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58771 states. [2022-11-18 19:55:15,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58771 to 58075. [2022-11-18 19:55:15,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58075 states, 38450 states have (on average 1.2449414824447333) internal successors, (47868), 39468 states have internal predecessors, (47868), 16454 states have call successors, (16454), 3225 states have call predecessors, (16454), 3168 states have return successors, (16642), 15749 states have call predecessors, (16642), 16450 states have call successors, (16642) [2022-11-18 19:55:15,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58075 states to 58075 states and 80964 transitions. [2022-11-18 19:55:15,593 INFO L78 Accepts]: Start accepts. Automaton has 58075 states and 80964 transitions. Word has length 171 [2022-11-18 19:55:15,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:55:15,594 INFO L495 AbstractCegarLoop]: Abstraction has 58075 states and 80964 transitions. [2022-11-18 19:55:15,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 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) [2022-11-18 19:55:15,595 INFO L276 IsEmpty]: Start isEmpty. Operand 58075 states and 80964 transitions. [2022-11-18 19:55:15,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-18 19:55:15,600 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:55:15,600 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:55:15,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 19:55:15,601 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)] === [2022-11-18 19:55:15,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:55:15,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1307683801, now seen corresponding path program 1 times [2022-11-18 19:55:15,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:55:15,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597599413] [2022-11-18 19:55:15,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:55:15,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:55:15,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:15,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 19:55:15,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:15,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:55:15,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:15,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 19:55:15,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:15,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:55:15,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:15,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 19:55:15,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:15,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:55:15,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:15,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 19:55:15,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:15,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:55:15,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:15,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-18 19:55:15,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:15,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:55:15,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:15,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 19:55:15,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:15,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:55:15,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:15,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 19:55:15,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:15,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:55:15,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:15,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 19:55:15,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:15,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 19:55:15,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:15,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-18 19:55:15,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:15,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-18 19:55:15,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:15,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-18 19:55:15,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:15,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:55:15,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:15,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-18 19:55:15,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:15,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-18 19:55:15,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:15,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-18 19:55:15,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:15,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-11-18 19:55:15,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:15,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:55:15,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:15,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-18 19:55:15,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:15,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-11-18 19:55:15,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:15,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-11-18 19:55:15,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:15,998 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2022-11-18 19:55:15,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:55:15,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597599413] [2022-11-18 19:55:15,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597599413] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:55:15,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:55:16,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:55:16,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042444119] [2022-11-18 19:55:16,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:55:16,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:55:16,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:55:16,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:55:16,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:55:16,002 INFO L87 Difference]: Start difference. First operand 58075 states and 80964 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22)