./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f11439-dae3-4249-af99-0727fe871e7f/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f11439-dae3-4249-af99-0727fe871e7f/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f11439-dae3-4249-af99-0727fe871e7f/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f11439-dae3-4249-af99-0727fe871e7f/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f11439-dae3-4249-af99-0727fe871e7f/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f11439-dae3-4249-af99-0727fe871e7f/bin/uautomizer-DrprNOufMa --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 1b84ae01ff77d37e9299320c753590c425a9f784ed44d0a112a3afe6584a446b --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 00:48:48,203 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 00:48:48,205 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 00:48:48,234 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 00:48:48,234 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 00:48:48,236 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 00:48:48,237 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 00:48:48,239 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 00:48:48,242 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 00:48:48,243 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 00:48:48,243 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 00:48:48,245 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 00:48:48,245 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 00:48:48,246 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 00:48:48,248 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 00:48:48,249 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 00:48:48,250 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 00:48:48,251 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 00:48:48,253 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 00:48:48,256 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 00:48:48,258 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 00:48:48,259 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 00:48:48,260 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 00:48:48,261 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 00:48:48,265 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 00:48:48,265 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 00:48:48,266 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 00:48:48,267 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 00:48:48,267 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 00:48:48,268 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 00:48:48,269 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 00:48:48,270 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 00:48:48,270 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 00:48:48,271 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 00:48:48,272 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 00:48:48,272 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 00:48:48,273 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 00:48:48,273 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 00:48:48,273 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 00:48:48,273 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 00:48:48,274 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 00:48:48,275 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f11439-dae3-4249-af99-0727fe871e7f/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-07 00:48:48,296 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 00:48:48,297 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 00:48:48,297 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 00:48:48,297 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 00:48:48,298 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 00:48:48,298 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 00:48:48,299 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 00:48:48,299 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 00:48:48,299 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 00:48:48,299 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 00:48:48,300 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 00:48:48,300 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 00:48:48,300 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 00:48:48,300 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 00:48:48,300 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 00:48:48,300 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 00:48:48,301 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 00:48:48,301 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 00:48:48,301 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 00:48:48,301 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 00:48:48,301 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 00:48:48,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:48:48,302 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 00:48:48,302 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 00:48:48,302 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 00:48:48,302 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 00:48:48,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-07 00:48:48,303 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 00:48:48,303 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 00:48:48,303 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 00:48:48,303 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 00:48:48,303 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_34f11439-dae3-4249-af99-0727fe871e7f/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f11439-dae3-4249-af99-0727fe871e7f/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b84ae01ff77d37e9299320c753590c425a9f784ed44d0a112a3afe6584a446b [2021-12-07 00:48:48,491 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 00:48:48,507 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 00:48:48,509 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 00:48:48,509 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 00:48:48,510 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 00:48:48,511 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f11439-dae3-4249-af99-0727fe871e7f/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i [2021-12-07 00:48:48,553 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f11439-dae3-4249-af99-0727fe871e7f/bin/uautomizer-DrprNOufMa/data/408df0770/59a4f58a4a8a4c57aebfefec4de21355/FLAGe6f022703 [2021-12-07 00:48:49,364 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 00:48:49,364 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f11439-dae3-4249-af99-0727fe871e7f/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i [2021-12-07 00:48:49,430 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f11439-dae3-4249-af99-0727fe871e7f/bin/uautomizer-DrprNOufMa/data/408df0770/59a4f58a4a8a4c57aebfefec4de21355/FLAGe6f022703 [2021-12-07 00:48:49,583 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f11439-dae3-4249-af99-0727fe871e7f/bin/uautomizer-DrprNOufMa/data/408df0770/59a4f58a4a8a4c57aebfefec4de21355 [2021-12-07 00:48:49,586 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 00:48:49,588 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 00:48:49,589 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 00:48:49,589 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 00:48:49,592 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 00:48:49,593 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:48:49" (1/1) ... [2021-12-07 00:48:49,594 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f0dd8d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:48:49, skipping insertion in model container [2021-12-07 00:48:49,594 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:48:49" (1/1) ... [2021-12-07 00:48:49,600 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 00:48:49,816 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 00:48:57,856 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f11439-dae3-4249-af99-0727fe871e7f/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[945328,945341] [2021-12-07 00:48:57,858 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f11439-dae3-4249-af99-0727fe871e7f/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[945497,945510] [2021-12-07 00:48:57,859 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f11439-dae3-4249-af99-0727fe871e7f/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[945664,945677] [2021-12-07 00:48:57,859 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f11439-dae3-4249-af99-0727fe871e7f/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[945832,945845] [2021-12-07 00:48:57,888 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:48:57,941 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 00:48:58,657 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f11439-dae3-4249-af99-0727fe871e7f/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[945328,945341] [2021-12-07 00:48:58,658 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f11439-dae3-4249-af99-0727fe871e7f/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[945497,945510] [2021-12-07 00:48:58,658 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f11439-dae3-4249-af99-0727fe871e7f/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[945664,945677] [2021-12-07 00:48:58,658 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f11439-dae3-4249-af99-0727fe871e7f/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[945832,945845] [2021-12-07 00:48:58,666 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:48:59,066 INFO L208 MainTranslator]: Completed translation [2021-12-07 00:48:59,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:48:59 WrapperNode [2021-12-07 00:48:59,067 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 00:48:59,068 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 00:48:59,068 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 00:48:59,068 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 00:48:59,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:48:59" (1/1) ... [2021-12-07 00:48:59,249 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:48:59" (1/1) ... [2021-12-07 00:48:59,699 INFO L137 Inliner]: procedures = 856, calls = 16450, calls flagged for inlining = 419, calls inlined = 352, statements flattened = 29361 [2021-12-07 00:48:59,700 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 00:48:59,700 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 00:48:59,701 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 00:48:59,701 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 00:48:59,708 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:48:59" (1/1) ... [2021-12-07 00:48:59,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:48:59" (1/1) ... [2021-12-07 00:48:59,865 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:48:59" (1/1) ... [2021-12-07 00:48:59,866 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:48:59" (1/1) ... [2021-12-07 00:49:00,230 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:48:59" (1/1) ... [2021-12-07 00:49:00,320 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:48:59" (1/1) ... [2021-12-07 00:49:00,437 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:48:59" (1/1) ... [2021-12-07 00:49:00,585 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 00:49:00,586 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 00:49:00,587 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 00:49:00,587 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 00:49:00,587 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:48:59" (1/1) ... [2021-12-07 00:49:00,594 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:49:00,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f11439-dae3-4249-af99-0727fe871e7f/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:49:00,615 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f11439-dae3-4249-af99-0727fe871e7f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 00:49:00,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f11439-dae3-4249-af99-0727fe871e7f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 00:49:00,652 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_fc_after_link_up [2021-12-07 00:49:00,653 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_fc_after_link_up [2021-12-07 00:49:00,653 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2021-12-07 00:49:00,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2021-12-07 00:49:00,653 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_collision_dist [2021-12-07 00:49:00,653 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_collision_dist [2021-12-07 00:49:00,653 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_ee_clk [2021-12-07 00:49:00,653 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_ee_clk [2021-12-07 00:49:00,653 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2021-12-07 00:49:00,654 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2021-12-07 00:49:00,654 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2021-12-07 00:49:00,654 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2021-12-07 00:49:00,654 INFO L130 BoogieDeclarations]: Found specification of procedure reg_pattern_test [2021-12-07 00:49:00,654 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_pattern_test [2021-12-07 00:49:00,654 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-07 00:49:00,654 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-07 00:49:00,654 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2021-12-07 00:49:00,655 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2021-12-07 00:49:00,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-07 00:49:00,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-07 00:49:00,655 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_unmap_and_free_tx_resource [2021-12-07 00:49:00,655 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_unmap_and_free_tx_resource [2021-12-07 00:49:00,655 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-07 00:49:00,655 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-07 00:49:00,655 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-07 00:49:00,655 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-07 00:49:00,655 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_rctl [2021-12-07 00:49:00,656 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_rctl [2021-12-07 00:49:00,656 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-07 00:49:00,656 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-07 00:49:00,656 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_tail_pointer [2021-12-07 00:49:00,656 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_tail_pointer [2021-12-07 00:49:00,656 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset [2021-12-07 00:49:00,656 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset [2021-12-07 00:49:00,656 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2021-12-07 00:49:00,656 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2021-12-07 00:49:00,657 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-07 00:49:00,657 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-07 00:49:00,657 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-07 00:49:00,657 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-07 00:49:00,657 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-07 00:49:00,657 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-07 00:49:00,657 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-07 00:49:00,657 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-07 00:49:00,657 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg [2021-12-07 00:49:00,657 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg [2021-12-07 00:49:00,658 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_speed_and_duplex [2021-12-07 00:49:00,658 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_speed_and_duplex [2021-12-07 00:49:00,658 INFO L130 BoogieDeclarations]: Found specification of procedure find_next_bit [2021-12-07 00:49:00,658 INFO L138 BoogieDeclarations]: Found implementation of procedure find_next_bit [2021-12-07 00:49:00,658 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-12-07 00:49:00,658 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-12-07 00:49:00,658 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-07 00:49:00,658 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-07 00:49:00,659 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-07 00:49:00,659 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-07 00:49:00,659 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_link [2021-12-07 00:49:00,659 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_link [2021-12-07 00:49:00,659 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_irq [2021-12-07 00:49:00,659 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_irq [2021-12-07 00:49:00,659 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2021-12-07 00:49:00,660 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2021-12-07 00:49:00,660 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_vlan_mode [2021-12-07 00:49:00,660 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_vlan_mode [2021-12-07 00:49:00,660 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-07 00:49:00,660 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-07 00:49:00,660 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_dsp_after_link_change [2021-12-07 00:49:00,660 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_dsp_after_link_change [2021-12-07 00:49:00,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-07 00:49:00,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-07 00:49:00,661 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_maybe_stop_tx [2021-12-07 00:49:00,661 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_maybe_stop_tx [2021-12-07 00:49:00,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-07 00:49:00,661 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2021-12-07 00:49:00,661 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2021-12-07 00:49:00,661 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_used [2021-12-07 00:49:00,661 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_used [2021-12-07 00:49:00,661 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_force_mac_fc [2021-12-07 00:49:00,661 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_force_mac_fc [2021-12-07 00:49:00,661 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-12-07 00:49:00,661 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-12-07 00:49:00,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-07 00:49:00,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-07 00:49:00,662 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_leave_82542_rst [2021-12-07 00:49:00,662 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_leave_82542_rst [2021-12-07 00:49:00,662 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-07 00:49:00,662 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-07 00:49:00,662 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_tx_resources [2021-12-07 00:49:00,662 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_tx_resources [2021-12-07 00:49:00,663 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-12-07 00:49:00,663 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-12-07 00:49:00,663 INFO L130 BoogieDeclarations]: Found specification of procedure reg_set_and_check [2021-12-07 00:49:00,663 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_set_and_check [2021-12-07 00:49:00,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-07 00:49:00,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-07 00:49:00,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-07 00:49:00,663 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_netpoll [2021-12-07 00:49:00,663 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_netpoll [2021-12-07 00:49:00,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 00:49:00,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-07 00:49:00,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-07 00:49:00,664 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-07 00:49:00,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-07 00:49:00,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-07 00:49:00,664 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_rx_mode [2021-12-07 00:49:00,664 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_rx_mode [2021-12-07 00:49:00,664 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-07 00:49:00,665 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-12-07 00:49:00,665 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-12-07 00:49:00,665 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_hw_reset [2021-12-07 00:49:00,665 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_hw_reset [2021-12-07 00:49:00,665 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-07 00:49:00,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-07 00:49:00,665 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_ee_bits [2021-12-07 00:49:00,665 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_ee_bits [2021-12-07 00:49:00,665 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-07 00:49:00,666 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-07 00:49:00,666 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_ee_clk [2021-12-07 00:49:00,666 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_ee_clk [2021-12-07 00:49:00,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-07 00:49:00,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-07 00:49:00,666 INFO L130 BoogieDeclarations]: Found specification of procedure device_can_wakeup [2021-12-07 00:49:00,666 INFO L138 BoogieDeclarations]: Found implementation of procedure device_can_wakeup [2021-12-07 00:49:00,667 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_selected_regions [2021-12-07 00:49:00,667 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_selected_regions [2021-12-07 00:49:00,667 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-07 00:49:00,667 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-07 00:49:00,667 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom [2021-12-07 00:49:00,667 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom [2021-12-07 00:49:00,667 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_enter_82542_rst [2021-12-07 00:49:00,668 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_enter_82542_rst [2021-12-07 00:49:00,668 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2021-12-07 00:49:00,668 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2021-12-07 00:49:00,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 00:49:00,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 00:49:00,668 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_down_phy [2021-12-07 00:49:00,668 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_down_phy [2021-12-07 00:49:00,668 INFO L130 BoogieDeclarations]: Found specification of procedure pci_select_bars [2021-12-07 00:49:00,668 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_select_bars [2021-12-07 00:49:00,668 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_spi_eeprom_ready [2021-12-07 00:49:00,668 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_spi_eeprom_ready [2021-12-07 00:49:00,668 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_clear_mwi [2021-12-07 00:49:00,668 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_clear_mwi [2021-12-07 00:49:00,669 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-07 00:49:00,669 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-07 00:49:00,669 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_up_phy [2021-12-07 00:49:00,669 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_up_phy [2021-12-07 00:49:00,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-07 00:49:00,669 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-07 00:49:00,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-07 00:49:00,669 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg_ex [2021-12-07 00:49:00,669 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg_ex [2021-12-07 00:49:00,669 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-07 00:49:00,669 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-07 00:49:00,669 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-12-07 00:49:00,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-07 00:49:00,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-07 00:49:00,670 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_resume [2021-12-07 00:49:00,670 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_resume [2021-12-07 00:49:00,670 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-12-07 00:49:00,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-12-07 00:49:00,670 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-12-07 00:49:00,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-12-07 00:49:00,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-07 00:49:00,670 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-07 00:49:00,670 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_mdi_clk [2021-12-07 00:49:00,670 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_mdi_clk [2021-12-07 00:49:00,670 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_mac_to_phy [2021-12-07 00:49:00,670 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_mac_to_phy [2021-12-07 00:49:00,671 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2021-12-07 00:49:00,671 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2021-12-07 00:49:00,671 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-12-07 00:49:00,671 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-12-07 00:49:00,671 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset_clk_and_crs [2021-12-07 00:49:00,671 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset_clk_and_crs [2021-12-07 00:49:00,671 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-12-07 00:49:00,671 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-12-07 00:49:00,671 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-12-07 00:49:00,671 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-12-07 00:49:00,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-07 00:49:00,671 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-07 00:49:00,671 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-07 00:49:00,672 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_regs_len [2021-12-07 00:49:00,672 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_regs_len [2021-12-07 00:49:00,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-07 00:49:00,672 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2021-12-07 00:49:00,672 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2021-12-07 00:49:00,672 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_tx_resources [2021-12-07 00:49:00,672 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_tx_resources [2021-12-07 00:49:00,672 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_setup_autoneg [2021-12-07 00:49:00,673 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_setup_autoneg [2021-12-07 00:49:00,673 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_mng_vlan [2021-12-07 00:49:00,673 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_mng_vlan [2021-12-07 00:49:00,673 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_filter_on_off [2021-12-07 00:49:00,673 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_filter_on_off [2021-12-07 00:49:00,673 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-12-07 00:49:00,673 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-12-07 00:49:00,673 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_nway_reset [2021-12-07 00:49:00,673 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_nway_reset [2021-12-07 00:49:00,674 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-07 00:49:00,674 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-07 00:49:00,674 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-07 00:49:00,674 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-07 00:49:00,674 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_all_rx_rings [2021-12-07 00:49:00,674 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_all_rx_rings [2021-12-07 00:49:00,674 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reinit_locked [2021-12-07 00:49:00,674 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reinit_locked [2021-12-07 00:49:00,674 INFO L130 BoogieDeclarations]: Found specification of procedure find_first_bit [2021-12-07 00:49:00,674 INFO L138 BoogieDeclarations]: Found implementation of procedure find_first_bit [2021-12-07 00:49:00,674 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_phy_reg [2021-12-07 00:49:00,675 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_phy_reg [2021-12-07 00:49:00,675 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_rx_resources [2021-12-07 00:49:00,675 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_rx_resources [2021-12-07 00:49:00,675 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-07 00:49:00,675 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-07 00:49:00,675 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_copper_link_rtl_setup [2021-12-07 00:49:00,675 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_copper_link_rtl_setup [2021-12-07 00:49:00,675 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_desc_rings [2021-12-07 00:49:00,675 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_desc_rings [2021-12-07 00:49:00,675 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2021-12-07 00:49:00,675 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2021-12-07 00:49:00,675 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-07 00:49:00,675 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-07 00:49:00,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-07 00:49:00,676 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_64k_bound [2021-12-07 00:49:00,676 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_64k_bound [2021-12-07 00:49:00,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-07 00:49:00,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-07 00:49:00,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_88 [2021-12-07 00:49:00,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_88 [2021-12-07 00:49:00,676 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_request_irq [2021-12-07 00:49:00,676 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_request_irq [2021-12-07 00:49:00,676 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-12-07 00:49:00,676 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-12-07 00:49:00,676 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_eeprom [2021-12-07 00:49:00,676 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_eeprom [2021-12-07 00:49:00,676 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset_hw [2021-12-07 00:49:00,677 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset_hw [2021-12-07 00:49:00,677 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_disable [2021-12-07 00:49:00,677 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_disable [2021-12-07 00:49:00,677 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2021-12-07 00:49:00,677 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2021-12-07 00:49:00,677 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_tx_ring [2021-12-07 00:49:00,677 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_tx_ring [2021-12-07 00:49:00,677 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-12-07 00:49:00,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-12-07 00:49:00,678 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_manageability [2021-12-07 00:49:00,678 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_manageability [2021-12-07 00:49:00,678 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-07 00:49:00,678 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-07 00:49:00,678 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-12-07 00:49:00,678 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-12-07 00:49:00,678 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-12-07 00:49:00,678 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2021-12-07 00:49:00,678 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2021-12-07 00:49:00,679 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_rx_ring [2021-12-07 00:49:00,679 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_rx_ring [2021-12-07 00:49:00,679 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-12-07 00:49:00,679 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-12-07 00:49:00,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_91 [2021-12-07 00:49:00,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_91 [2021-12-07 00:49:00,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-07 00:49:00,679 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-07 00:49:00,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_82 [2021-12-07 00:49:00,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_82 [2021-12-07 00:49:00,680 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-12-07 00:49:00,680 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-12-07 00:49:00,680 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_eeprom [2021-12-07 00:49:00,680 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_eeprom [2021-12-07 00:49:00,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-07 00:49:00,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-07 00:49:00,681 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_manageability [2021-12-07 00:49:00,681 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_manageability [2021-12-07 00:49:00,681 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_in_ee_bits [2021-12-07 00:49:00,681 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_in_ee_bits [2021-12-07 00:49:00,681 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down_and_stop [2021-12-07 00:49:00,681 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down_and_stop [2021-12-07 00:49:00,681 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-07 00:49:00,681 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-07 00:49:00,681 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2021-12-07 00:49:00,682 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2021-12-07 00:49:00,682 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2021-12-07 00:49:00,682 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2021-12-07 00:49:00,682 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-12-07 00:49:00,682 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-12-07 00:49:00,682 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_get_info [2021-12-07 00:49:00,682 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_get_info [2021-12-07 00:49:00,682 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_do_read_eeprom [2021-12-07 00:49:00,682 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_do_read_eeprom [2021-12-07 00:49:00,683 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_rar_set [2021-12-07 00:49:00,683 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_rar_set [2021-12-07 00:49:00,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_83 [2021-12-07 00:49:00,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_83 [2021-12-07 00:49:00,683 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_eeprom_params [2021-12-07 00:49:00,683 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_eeprom_params [2021-12-07 00:49:00,683 INFO L130 BoogieDeclarations]: Found specification of procedure phys_to_virt [2021-12-07 00:49:00,683 INFO L138 BoogieDeclarations]: Found implementation of procedure phys_to_virt [2021-12-07 00:49:00,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-07 00:49:00,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-07 00:49:00,683 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-12-07 00:49:00,683 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-12-07 00:49:00,683 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-07 00:49:00,683 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-07 00:49:00,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-07 00:49:00,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-07 00:49:00,684 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-12-07 00:49:00,684 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-12-07 00:49:00,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-07 00:49:00,684 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_standby_eeprom [2021-12-07 00:49:00,684 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_standby_eeprom [2021-12-07 00:49:00,684 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure_rx [2021-12-07 00:49:00,684 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure_rx [2021-12-07 00:49:00,684 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_hw_dev [2021-12-07 00:49:00,684 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_hw_dev [2021-12-07 00:49:00,684 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_stats [2021-12-07 00:49:00,684 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_stats [2021-12-07 00:49:00,684 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_validate_option [2021-12-07 00:49:00,684 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_validate_option [2021-12-07 00:49:00,685 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-07 00:49:00,685 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-07 00:49:00,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-07 00:49:00,685 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_link [2021-12-07 00:49:00,685 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_link [2021-12-07 00:49:00,685 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset [2021-12-07 00:49:00,685 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset [2021-12-07 00:49:00,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-07 00:49:00,685 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-07 00:49:00,685 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-07 00:49:00,685 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shutdown [2021-12-07 00:49:00,685 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shutdown [2021-12-07 00:49:00,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-07 00:49:00,685 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-07 00:49:00,686 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_disable_receiver [2021-12-07 00:49:00,686 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_disable_receiver [2021-12-07 00:49:00,686 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_kill_vid [2021-12-07 00:49:00,686 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_kill_vid [2021-12-07 00:49:00,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-07 00:49:00,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-07 00:49:00,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-07 00:49:00,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-07 00:49:00,686 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2021-12-07 00:49:00,686 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2021-12-07 00:49:00,686 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_has_link [2021-12-07 00:49:00,686 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_has_link [2021-12-07 00:49:00,686 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-12-07 00:49:00,686 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-12-07 00:49:00,687 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2021-12-07 00:49:00,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2021-12-07 00:49:00,687 INFO L130 BoogieDeclarations]: Found specification of procedure pci_wake_from_d3 [2021-12-07 00:49:00,687 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_wake_from_d3 [2021-12-07 00:49:00,687 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-12-07 00:49:00,687 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-12-07 00:49:00,687 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-12-07 00:49:00,687 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-12-07 00:49:00,687 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-07 00:49:00,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-07 00:49:00,687 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_open [2021-12-07 00:49:00,687 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_open [2021-12-07 00:49:00,687 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2021-12-07 00:49:00,687 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2021-12-07 00:49:00,688 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_vfta [2021-12-07 00:49:00,688 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_vfta [2021-12-07 00:49:00,688 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_remove [2021-12-07 00:49:00,688 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_remove [2021-12-07 00:49:00,688 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure [2021-12-07 00:49:00,688 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure [2021-12-07 00:49:00,688 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-12-07 00:49:00,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-12-07 00:49:00,688 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-07 00:49:00,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-07 00:49:00,688 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-12-07 00:49:00,688 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-12-07 00:49:00,689 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_cable_length [2021-12-07 00:49:00,689 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_cable_length [2021-12-07 00:49:00,689 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-07 00:49:00,689 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-07 00:49:00,689 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_rx_resources [2021-12-07 00:49:00,689 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_rx_resources [2021-12-07 00:49:00,689 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_add_vid [2021-12-07 00:49:00,690 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_add_vid [2021-12-07 00:49:00,690 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-12-07 00:49:00,690 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-12-07 00:49:00,690 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_write [2021-12-07 00:49:00,690 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_write [2021-12-07 00:49:00,690 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2021-12-07 00:49:00,690 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2021-12-07 00:49:00,690 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_resume [2021-12-07 00:49:00,690 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_resume [2021-12-07 00:49:00,691 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-07 00:49:00,691 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-07 00:49:00,691 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_acquire_eeprom [2021-12-07 00:49:00,691 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_acquire_eeprom [2021-12-07 00:49:00,691 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-12-07 00:49:00,691 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-12-07 00:49:00,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-07 00:49:00,691 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-07 00:49:00,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-07 00:49:00,692 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2021-12-07 00:49:00,692 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2021-12-07 00:49:00,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-07 00:49:00,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-07 00:49:00,692 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-12-07 00:49:00,692 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-12-07 00:49:00,692 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-12-07 00:49:00,692 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-12-07 00:49:00,692 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_polarity [2021-12-07 00:49:00,693 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_polarity [2021-12-07 00:49:00,693 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-12-07 00:49:00,693 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-12-07 00:49:00,693 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-12-07 00:49:00,693 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-12-07 00:49:00,693 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom_len [2021-12-07 00:49:00,693 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom_len [2021-12-07 00:49:00,693 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-07 00:49:00,693 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-07 00:49:00,694 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_rx_resources [2021-12-07 00:49:00,694 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_rx_resources [2021-12-07 00:49:00,694 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2021-12-07 00:49:00,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2021-12-07 00:49:00,694 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_close [2021-12-07 00:49:00,694 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_close [2021-12-07 00:49:00,694 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-07 00:49:00,694 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-07 00:49:00,695 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-12-07 00:49:00,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-12-07 00:49:00,695 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-12-07 00:49:00,695 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-12-07 00:49:00,695 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-07 00:49:00,695 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-07 00:49:00,695 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-12-07 00:49:00,695 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-12-07 00:49:00,695 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2021-12-07 00:49:00,696 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2021-12-07 00:49:00,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-07 00:49:00,696 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_media_type [2021-12-07 00:49:00,696 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_media_type [2021-12-07 00:49:00,696 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_eeprom [2021-12-07 00:49:00,696 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_eeprom [2021-12-07 00:49:00,696 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_phy_loopback [2021-12-07 00:49:00,696 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_phy_loopback [2021-12-07 00:49:00,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-12-07 00:49:00,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-12-07 00:49:00,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-07 00:49:00,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-07 00:49:00,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-12-07 00:49:00,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-12-07 00:49:00,697 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_enable [2021-12-07 00:49:00,697 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_enable [2021-12-07 00:49:00,697 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_up [2021-12-07 00:49:00,697 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_up [2021-12-07 00:49:00,697 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_tx_timeout [2021-12-07 00:49:00,697 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_tx_timeout [2021-12-07 00:49:00,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_87 [2021-12-07 00:49:00,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_87 [2021-12-07 00:49:00,697 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_mdi_clk [2021-12-07 00:49:00,697 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_mdi_clk [2021-12-07 00:49:00,698 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-07 00:49:00,698 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-07 00:49:00,698 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-07 00:49:00,698 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-07 00:49:00,698 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2021-12-07 00:49:00,698 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2021-12-07 00:49:00,698 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_eeprom [2021-12-07 00:49:00,698 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_eeprom [2021-12-07 00:49:00,698 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_set_mwi [2021-12-07 00:49:00,698 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_set_mwi [2021-12-07 00:49:00,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_stats_lock_of_e1000_adapter [2021-12-07 00:49:00,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_stats_lock_of_e1000_adapter [2021-12-07 00:49:00,698 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_polarity_reversal_workaround [2021-12-07 00:49:00,698 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_polarity_reversal_workaround [2021-12-07 00:49:00,699 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-12-07 00:49:00,699 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-12-07 00:49:00,699 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-12-07 00:49:00,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-12-07 00:49:00,699 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-07 00:49:00,699 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-07 00:49:00,699 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_link_test [2021-12-07 00:49:00,699 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_link_test [2021-12-07 00:49:00,699 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_mdi_bits [2021-12-07 00:49:00,699 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_mdi_bits [2021-12-07 00:49:00,699 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_spd_dplx [2021-12-07 00:49:00,699 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_spd_dplx [2021-12-07 00:49:00,699 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device_mem [2021-12-07 00:49:00,699 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device_mem [2021-12-07 00:49:00,699 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down [2021-12-07 00:49:00,699 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down [2021-12-07 00:49:00,700 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-07 00:49:00,700 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-07 00:49:00,700 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_init_script [2021-12-07 00:49:00,700 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_init_script [2021-12-07 00:49:00,700 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-12-07 00:49:00,700 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-12-07 00:49:00,700 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2021-12-07 00:49:00,700 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2021-12-07 00:49:00,700 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-12-07 00:49:00,700 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-12-07 00:49:00,700 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_shutdown [2021-12-07 00:49:00,700 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_shutdown [2021-12-07 00:49:00,700 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_tx_resources [2021-12-07 00:49:00,700 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_tx_resources [2021-12-07 00:49:00,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-07 00:49:00,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-07 00:49:00,701 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-12-07 00:49:00,701 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-12-07 00:49:00,701 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-12-07 00:49:00,701 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-12-07 00:49:00,701 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2021-12-07 00:49:00,701 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2021-12-07 00:49:00,701 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_wol_exclusion [2021-12-07 00:49:00,701 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_wol_exclusion [2021-12-07 00:49:00,701 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-07 00:49:00,701 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-07 00:49:00,702 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-07 00:49:00,702 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-07 00:49:00,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_e1000_phy_lock [2021-12-07 00:49:00,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_e1000_phy_lock [2021-12-07 00:49:00,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-07 00:49:00,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-07 00:49:00,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-07 00:49:00,702 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-12-07 00:49:01,758 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 00:49:01,762 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 00:49:02,644 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-07 00:50:02,164 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 00:50:02,196 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 00:50:02,196 INFO L301 CfgBuilder]: Removed 9 assume(true) statements. [2021-12-07 00:50:02,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:50:02 BoogieIcfgContainer [2021-12-07 00:50:02,205 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 00:50:02,206 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 00:50:02,206 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 00:50:02,209 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 00:50:02,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:48:49" (1/3) ... [2021-12-07 00:50:02,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4607209a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:50:02, skipping insertion in model container [2021-12-07 00:50:02,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:48:59" (2/3) ... [2021-12-07 00:50:02,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4607209a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:50:02, skipping insertion in model container [2021-12-07 00:50:02,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:50:02" (3/3) ... [2021-12-07 00:50:02,211 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i [2021-12-07 00:50:02,215 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 00:50:02,215 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-07 00:50:02,269 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 00:50:02,274 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-07 00:50:02,274 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-07 00:50:02,381 INFO L276 IsEmpty]: Start isEmpty. Operand has 8047 states, 5637 states have (on average 1.3505410679439418) internal successors, (7613), 5745 states have internal predecessors, (7613), 2159 states have call successors, (2159), 250 states have call predecessors, (2159), 249 states have return successors, (2155), 2142 states have call predecessors, (2155), 2155 states have call successors, (2155) [2021-12-07 00:50:02,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-12-07 00:50:02,386 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:50:02,386 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:50:02,387 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 00:50:02,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:50:02,391 INFO L85 PathProgramCache]: Analyzing trace with hash -127250995, now seen corresponding path program 1 times [2021-12-07 00:50:02,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:50:02,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613945496] [2021-12-07 00:50:02,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:50:02,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:50:02,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:03,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-07 00:50:03,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:03,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-07 00:50:03,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:03,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-07 00:50:03,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:03,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:50:03,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:03,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-07 00:50:03,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:03,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-07 00:50:03,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:03,496 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-07 00:50:03,497 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:50:03,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613945496] [2021-12-07 00:50:03,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613945496] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:50:03,498 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:50:03,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 00:50:03,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169572893] [2021-12-07 00:50:03,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:50:03,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:50:03,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:50:03,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:50:03,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:50:03,538 INFO L87 Difference]: Start difference. First operand has 8047 states, 5637 states have (on average 1.3505410679439418) internal successors, (7613), 5745 states have internal predecessors, (7613), 2159 states have call successors, (2159), 250 states have call predecessors, (2159), 249 states have return successors, (2155), 2142 states have call predecessors, (2155), 2155 states have call successors, (2155) Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-07 00:50:04,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:50:04,277 INFO L93 Difference]: Finished difference Result 16039 states and 24220 transitions. [2021-12-07 00:50:04,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 00:50:04,279 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 50 [2021-12-07 00:50:04,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:50:04,355 INFO L225 Difference]: With dead ends: 16039 [2021-12-07 00:50:04,355 INFO L226 Difference]: Without dead ends: 8005 [2021-12-07 00:50:04,445 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-07 00:50:04,448 INFO L933 BasicCegarLoop]: 11844 mSDtfsCounter, 11815 mSDsluCounter, 23669 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11833 SdHoareTripleChecker+Valid, 35513 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:50:04,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11833 Valid, 35513 Invalid, 26 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:50:04,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8005 states. [2021-12-07 00:50:04,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8005 to 8005. [2021-12-07 00:50:04,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8005 states, 5600 states have (on average 1.3448214285714286) internal successors, (7531), 5705 states have internal predecessors, (7531), 2153 states have call successors, (2153), 250 states have call predecessors, (2153), 249 states have return successors, (2150), 2137 states have call predecessors, (2150), 2150 states have call successors, (2150) [2021-12-07 00:50:05,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8005 states to 8005 states and 11834 transitions. [2021-12-07 00:50:05,006 INFO L78 Accepts]: Start accepts. Automaton has 8005 states and 11834 transitions. Word has length 50 [2021-12-07 00:50:05,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:50:05,008 INFO L470 AbstractCegarLoop]: Abstraction has 8005 states and 11834 transitions. [2021-12-07 00:50:05,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-07 00:50:05,008 INFO L276 IsEmpty]: Start isEmpty. Operand 8005 states and 11834 transitions. [2021-12-07 00:50:05,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-12-07 00:50:05,011 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:50:05,011 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-12-07 00:50:05,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-07 00:50:05,011 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 00:50:05,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:50:05,012 INFO L85 PathProgramCache]: Analyzing trace with hash -367112587, now seen corresponding path program 1 times [2021-12-07 00:50:05,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:50:05,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953576904] [2021-12-07 00:50:05,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:50:05,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:50:05,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:05,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-07 00:50:05,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:05,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-07 00:50:05,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:05,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-07 00:50:05,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:05,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:50:05,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:05,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-07 00:50:05,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:05,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-07 00:50:05,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:05,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-07 00:50:05,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:05,775 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-07 00:50:05,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:50:05,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953576904] [2021-12-07 00:50:05,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953576904] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:50:05,775 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:50:05,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 00:50:05,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612434492] [2021-12-07 00:50:05,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:50:05,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:50:05,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:50:05,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:50:05,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:50:05,778 INFO L87 Difference]: Start difference. First operand 8005 states and 11834 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-07 00:50:06,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:50:06,441 INFO L93 Difference]: Finished difference Result 8045 states and 11872 transitions. [2021-12-07 00:50:06,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 00:50:06,441 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 55 [2021-12-07 00:50:06,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:50:06,513 INFO L225 Difference]: With dead ends: 8045 [2021-12-07 00:50:06,514 INFO L226 Difference]: Without dead ends: 8043 [2021-12-07 00:50:06,519 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-07 00:50:06,520 INFO L933 BasicCegarLoop]: 11847 mSDtfsCounter, 11781 mSDsluCounter, 23714 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11797 SdHoareTripleChecker+Valid, 35561 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:50:06,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11797 Valid, 35561 Invalid, 28 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:50:06,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8043 states. [2021-12-07 00:50:06,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8043 to 8041. [2021-12-07 00:50:06,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8041 states, 5624 states have (on average 1.3438833570412518) internal successors, (7558), 5731 states have internal predecessors, (7558), 2157 states have call successors, (2157), 258 states have call predecessors, (2157), 257 states have return successors, (2154), 2141 states have call predecessors, (2154), 2154 states have call successors, (2154) [2021-12-07 00:50:07,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8041 states to 8041 states and 11869 transitions. [2021-12-07 00:50:07,004 INFO L78 Accepts]: Start accepts. Automaton has 8041 states and 11869 transitions. Word has length 55 [2021-12-07 00:50:07,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:50:07,004 INFO L470 AbstractCegarLoop]: Abstraction has 8041 states and 11869 transitions. [2021-12-07 00:50:07,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-07 00:50:07,005 INFO L276 IsEmpty]: Start isEmpty. Operand 8041 states and 11869 transitions. [2021-12-07 00:50:07,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-12-07 00:50:07,007 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:50:07,007 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-12-07 00:50:07,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-07 00:50:07,008 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 00:50:07,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:50:07,008 INFO L85 PathProgramCache]: Analyzing trace with hash 129339021, now seen corresponding path program 1 times [2021-12-07 00:50:07,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:50:07,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606501530] [2021-12-07 00:50:07,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:50:07,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:50:07,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:07,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-07 00:50:07,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:07,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-07 00:50:07,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:07,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-07 00:50:07,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:07,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:50:07,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:07,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-07 00:50:07,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:07,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-07 00:50:07,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:07,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-07 00:50:07,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:07,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-07 00:50:07,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:07,595 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-07 00:50:07,595 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:50:07,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606501530] [2021-12-07 00:50:07,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606501530] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:50:07,596 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:50:07,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 00:50:07,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635135995] [2021-12-07 00:50:07,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:50:07,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:50:07,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:50:07,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:50:07,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:50:07,598 INFO L87 Difference]: Start difference. First operand 8041 states and 11869 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-07 00:50:08,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:50:08,064 INFO L93 Difference]: Finished difference Result 8047 states and 11874 transitions. [2021-12-07 00:50:08,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 00:50:08,065 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 60 [2021-12-07 00:50:08,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:50:08,123 INFO L225 Difference]: With dead ends: 8047 [2021-12-07 00:50:08,123 INFO L226 Difference]: Without dead ends: 8045 [2021-12-07 00:50:08,129 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-07 00:50:08,130 INFO L933 BasicCegarLoop]: 11831 mSDtfsCounter, 11795 mSDsluCounter, 23637 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11810 SdHoareTripleChecker+Valid, 35468 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:50:08,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11810 Valid, 35468 Invalid, 26 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:50:08,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8045 states. [2021-12-07 00:50:08,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8045 to 8045. [2021-12-07 00:50:08,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8045 states, 5627 states have (on average 1.343700017771459) internal successors, (7561), 5734 states have internal predecessors, (7561), 2157 states have call successors, (2157), 259 states have call predecessors, (2157), 258 states have return successors, (2154), 2141 states have call predecessors, (2154), 2154 states have call successors, (2154) [2021-12-07 00:50:08,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8045 states to 8045 states and 11872 transitions. [2021-12-07 00:50:08,668 INFO L78 Accepts]: Start accepts. Automaton has 8045 states and 11872 transitions. Word has length 60 [2021-12-07 00:50:08,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:50:08,668 INFO L470 AbstractCegarLoop]: Abstraction has 8045 states and 11872 transitions. [2021-12-07 00:50:08,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-07 00:50:08,668 INFO L276 IsEmpty]: Start isEmpty. Operand 8045 states and 11872 transitions. [2021-12-07 00:50:08,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-07 00:50:08,670 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:50:08,670 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:50:08,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-07 00:50:08,671 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 00:50:08,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:50:08,671 INFO L85 PathProgramCache]: Analyzing trace with hash 800568629, now seen corresponding path program 1 times [2021-12-07 00:50:08,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:50:08,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765426125] [2021-12-07 00:50:08,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:50:08,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:50:08,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:09,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-07 00:50:09,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:09,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-07 00:50:09,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:09,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-07 00:50:09,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:09,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:50:09,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:09,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-07 00:50:09,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:09,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-07 00:50:09,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:09,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-07 00:50:09,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:09,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-07 00:50:09,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:09,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-07 00:50:09,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:09,264 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-12-07 00:50:09,264 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:50:09,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765426125] [2021-12-07 00:50:09,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765426125] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:50:09,265 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:50:09,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 00:50:09,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369911031] [2021-12-07 00:50:09,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:50:09,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:50:09,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:50:09,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:50:09,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:50:09,266 INFO L87 Difference]: Start difference. First operand 8045 states and 11872 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-07 00:50:09,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:50:09,644 INFO L93 Difference]: Finished difference Result 8051 states and 11877 transitions. [2021-12-07 00:50:09,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 00:50:09,645 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 65 [2021-12-07 00:50:09,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:50:09,688 INFO L225 Difference]: With dead ends: 8051 [2021-12-07 00:50:09,688 INFO L226 Difference]: Without dead ends: 8049 [2021-12-07 00:50:09,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-07 00:50:09,694 INFO L933 BasicCegarLoop]: 11831 mSDtfsCounter, 11795 mSDsluCounter, 23637 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11809 SdHoareTripleChecker+Valid, 35468 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:50:09,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11809 Valid, 35468 Invalid, 26 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:50:09,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8049 states. [2021-12-07 00:50:10,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8049 to 8049. [2021-12-07 00:50:10,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8049 states, 5630 states have (on average 1.3435168738898757) internal successors, (7564), 5737 states have internal predecessors, (7564), 2157 states have call successors, (2157), 260 states have call predecessors, (2157), 259 states have return successors, (2154), 2141 states have call predecessors, (2154), 2154 states have call successors, (2154) [2021-12-07 00:50:10,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8049 states to 8049 states and 11875 transitions. [2021-12-07 00:50:10,131 INFO L78 Accepts]: Start accepts. Automaton has 8049 states and 11875 transitions. Word has length 65 [2021-12-07 00:50:10,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:50:10,132 INFO L470 AbstractCegarLoop]: Abstraction has 8049 states and 11875 transitions. [2021-12-07 00:50:10,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-07 00:50:10,132 INFO L276 IsEmpty]: Start isEmpty. Operand 8049 states and 11875 transitions. [2021-12-07 00:50:10,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-12-07 00:50:10,134 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:50:10,134 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:50:10,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-07 00:50:10,135 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 00:50:10,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:50:10,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1343713459, now seen corresponding path program 1 times [2021-12-07 00:50:10,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:50:10,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812400532] [2021-12-07 00:50:10,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:50:10,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:50:10,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:10,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-07 00:50:10,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:10,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-07 00:50:10,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:10,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-07 00:50:10,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:10,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:50:10,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:10,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-07 00:50:10,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:10,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-07 00:50:10,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:10,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-07 00:50:10,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:10,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-07 00:50:10,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:10,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-07 00:50:10,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:10,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-07 00:50:10,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:10,715 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-12-07 00:50:10,715 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:50:10,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812400532] [2021-12-07 00:50:10,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812400532] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:50:10,716 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:50:10,716 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 00:50:10,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109373549] [2021-12-07 00:50:10,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:50:10,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:50:10,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:50:10,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:50:10,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:50:10,717 INFO L87 Difference]: Start difference. First operand 8049 states and 11875 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-07 00:50:11,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:50:11,111 INFO L93 Difference]: Finished difference Result 8478 states and 12485 transitions. [2021-12-07 00:50:11,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 00:50:11,112 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 70 [2021-12-07 00:50:11,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:50:11,143 INFO L225 Difference]: With dead ends: 8478 [2021-12-07 00:50:11,143 INFO L226 Difference]: Without dead ends: 8476 [2021-12-07 00:50:11,149 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-07 00:50:11,150 INFO L933 BasicCegarLoop]: 12363 mSDtfsCounter, 11749 mSDsluCounter, 25351 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11762 SdHoareTripleChecker+Valid, 37714 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:50:11,150 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11762 Valid, 37714 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:50:11,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8476 states. [2021-12-07 00:50:11,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8476 to 8470. [2021-12-07 00:50:11,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8470 states, 5901 states have (on average 1.339942382647009) internal successors, (7907), 6013 states have internal predecessors, (7907), 2286 states have call successors, (2286), 283 states have call predecessors, (2286), 280 states have return successors, (2286), 2267 states have call predecessors, (2286), 2283 states have call successors, (2286) [2021-12-07 00:50:11,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8470 states to 8470 states and 12479 transitions. [2021-12-07 00:50:11,601 INFO L78 Accepts]: Start accepts. Automaton has 8470 states and 12479 transitions. Word has length 70 [2021-12-07 00:50:11,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:50:11,601 INFO L470 AbstractCegarLoop]: Abstraction has 8470 states and 12479 transitions. [2021-12-07 00:50:11,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-07 00:50:11,602 INFO L276 IsEmpty]: Start isEmpty. Operand 8470 states and 12479 transitions. [2021-12-07 00:50:11,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-12-07 00:50:11,603 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:50:11,603 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:50:11,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-07 00:50:11,603 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 00:50:11,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:50:11,603 INFO L85 PathProgramCache]: Analyzing trace with hash -2033079437, now seen corresponding path program 1 times [2021-12-07 00:50:11,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:50:11,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791523698] [2021-12-07 00:50:11,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:50:11,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:50:11,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:12,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-07 00:50:12,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:12,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-07 00:50:12,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:12,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-07 00:50:12,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:12,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:50:12,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:12,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-07 00:50:12,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:12,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-07 00:50:12,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:12,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-07 00:50:12,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:12,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-07 00:50:12,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:12,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-07 00:50:12,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:12,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-07 00:50:12,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:12,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-07 00:50:12,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:12,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-07 00:50:12,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:12,174 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2021-12-07 00:50:12,174 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:50:12,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791523698] [2021-12-07 00:50:12,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791523698] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:50:12,175 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:50:12,175 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 00:50:12,175 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652720254] [2021-12-07 00:50:12,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:50:12,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:50:12,176 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:50:12,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:50:12,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:50:12,176 INFO L87 Difference]: Start difference. First operand 8470 states and 12479 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-07 00:50:12,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:50:12,578 INFO L93 Difference]: Finished difference Result 8504 states and 12504 transitions. [2021-12-07 00:50:12,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 00:50:12,579 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 88 [2021-12-07 00:50:12,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:50:12,610 INFO L225 Difference]: With dead ends: 8504 [2021-12-07 00:50:12,610 INFO L226 Difference]: Without dead ends: 8502 [2021-12-07 00:50:12,616 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-07 00:50:12,616 INFO L933 BasicCegarLoop]: 11833 mSDtfsCounter, 11481 mSDsluCounter, 23963 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11493 SdHoareTripleChecker+Valid, 35796 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:50:12,617 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11493 Valid, 35796 Invalid, 28 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:50:12,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8502 states. [2021-12-07 00:50:13,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8502 to 8500. [2021-12-07 00:50:13,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8500 states, 5922 states have (on average 1.3389057750759878) internal successors, (7929), 6034 states have internal predecessors, (7929), 2286 states have call successors, (2286), 292 states have call predecessors, (2286), 289 states have return successors, (2286), 2267 states have call predecessors, (2286), 2283 states have call successors, (2286) [2021-12-07 00:50:13,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8500 states to 8500 states and 12501 transitions. [2021-12-07 00:50:13,115 INFO L78 Accepts]: Start accepts. Automaton has 8500 states and 12501 transitions. Word has length 88 [2021-12-07 00:50:13,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:50:13,116 INFO L470 AbstractCegarLoop]: Abstraction has 8500 states and 12501 transitions. [2021-12-07 00:50:13,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-07 00:50:13,116 INFO L276 IsEmpty]: Start isEmpty. Operand 8500 states and 12501 transitions. [2021-12-07 00:50:13,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-12-07 00:50:13,117 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:50:13,117 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 6, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:50:13,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-07 00:50:13,117 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 00:50:13,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:50:13,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1034727411, now seen corresponding path program 1 times [2021-12-07 00:50:13,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:50:13,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815887761] [2021-12-07 00:50:13,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:50:13,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:50:13,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:13,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-07 00:50:13,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:13,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-07 00:50:13,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:13,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-07 00:50:13,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:13,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:50:13,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:13,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-07 00:50:13,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:13,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-07 00:50:13,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:13,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-07 00:50:13,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:13,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-07 00:50:13,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:13,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-07 00:50:13,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:13,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-07 00:50:13,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:13,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-07 00:50:13,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:13,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-07 00:50:13,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:13,667 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-12-07 00:50:13,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:50:13,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815887761] [2021-12-07 00:50:13,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815887761] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:50:13,668 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:50:13,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 00:50:13,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464739361] [2021-12-07 00:50:13,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:50:13,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:50:13,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:50:13,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:50:13,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:50:13,669 INFO L87 Difference]: Start difference. First operand 8500 states and 12501 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-07 00:50:14,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:50:14,041 INFO L93 Difference]: Finished difference Result 8506 states and 12506 transitions. [2021-12-07 00:50:14,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 00:50:14,042 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 80 [2021-12-07 00:50:14,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:50:14,064 INFO L225 Difference]: With dead ends: 8506 [2021-12-07 00:50:14,064 INFO L226 Difference]: Without dead ends: 8504 [2021-12-07 00:50:14,067 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-07 00:50:14,067 INFO L933 BasicCegarLoop]: 11831 mSDtfsCounter, 11795 mSDsluCounter, 23637 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11806 SdHoareTripleChecker+Valid, 35468 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:50:14,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11806 Valid, 35468 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:50:14,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8504 states. [2021-12-07 00:50:14,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8504 to 8504. [2021-12-07 00:50:14,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8504 states, 5925 states have (on average 1.33873417721519) internal successors, (7932), 6037 states have internal predecessors, (7932), 2286 states have call successors, (2286), 293 states have call predecessors, (2286), 290 states have return successors, (2286), 2267 states have call predecessors, (2286), 2283 states have call successors, (2286) [2021-12-07 00:50:14,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8504 states to 8504 states and 12504 transitions. [2021-12-07 00:50:14,561 INFO L78 Accepts]: Start accepts. Automaton has 8504 states and 12504 transitions. Word has length 80 [2021-12-07 00:50:14,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:50:14,562 INFO L470 AbstractCegarLoop]: Abstraction has 8504 states and 12504 transitions. [2021-12-07 00:50:14,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-07 00:50:14,562 INFO L276 IsEmpty]: Start isEmpty. Operand 8504 states and 12504 transitions. [2021-12-07 00:50:14,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-12-07 00:50:14,563 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:50:14,563 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:50:14,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-07 00:50:14,563 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 00:50:14,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:50:14,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1049935179, now seen corresponding path program 1 times [2021-12-07 00:50:14,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:50:14,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249071589] [2021-12-07 00:50:14,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:50:14,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:50:14,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:14,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-07 00:50:14,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:14,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-07 00:50:14,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:14,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-07 00:50:14,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:14,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:50:14,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:14,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-07 00:50:14,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:15,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-07 00:50:15,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:15,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-07 00:50:15,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:15,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-07 00:50:15,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:15,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-07 00:50:15,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:15,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-07 00:50:15,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:15,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-07 00:50:15,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:15,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-07 00:50:15,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:15,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-07 00:50:15,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:15,047 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-12-07 00:50:15,047 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:50:15,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249071589] [2021-12-07 00:50:15,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249071589] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:50:15,048 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:50:15,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 00:50:15,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366977912] [2021-12-07 00:50:15,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:50:15,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:50:15,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:50:15,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:50:15,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:50:15,049 INFO L87 Difference]: Start difference. First operand 8504 states and 12504 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-07 00:50:15,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:50:15,395 INFO L93 Difference]: Finished difference Result 8510 states and 12509 transitions. [2021-12-07 00:50:15,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 00:50:15,396 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 85 [2021-12-07 00:50:15,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:50:15,440 INFO L225 Difference]: With dead ends: 8510 [2021-12-07 00:50:15,440 INFO L226 Difference]: Without dead ends: 8508 [2021-12-07 00:50:15,443 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-07 00:50:15,444 INFO L933 BasicCegarLoop]: 11831 mSDtfsCounter, 11795 mSDsluCounter, 23637 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11805 SdHoareTripleChecker+Valid, 35468 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:50:15,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11805 Valid, 35468 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:50:15,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8508 states. [2021-12-07 00:50:15,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8508 to 8508. [2021-12-07 00:50:15,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8508 states, 5928 states have (on average 1.3385627530364372) internal successors, (7935), 6040 states have internal predecessors, (7935), 2286 states have call successors, (2286), 294 states have call predecessors, (2286), 291 states have return successors, (2286), 2267 states have call predecessors, (2286), 2283 states have call successors, (2286) [2021-12-07 00:50:15,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8508 states to 8508 states and 12507 transitions. [2021-12-07 00:50:15,917 INFO L78 Accepts]: Start accepts. Automaton has 8508 states and 12507 transitions. Word has length 85 [2021-12-07 00:50:15,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:50:15,918 INFO L470 AbstractCegarLoop]: Abstraction has 8508 states and 12507 transitions. [2021-12-07 00:50:15,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-07 00:50:15,918 INFO L276 IsEmpty]: Start isEmpty. Operand 8508 states and 12507 transitions. [2021-12-07 00:50:15,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-12-07 00:50:15,919 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:50:15,919 INFO L514 BasicCegarLoop]: trace histogram [9, 8, 8, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:50:15,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-07 00:50:15,919 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 00:50:15,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:50:15,919 INFO L85 PathProgramCache]: Analyzing trace with hash 335074703, now seen corresponding path program 1 times [2021-12-07 00:50:15,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:50:15,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570869145] [2021-12-07 00:50:15,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:50:15,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:50:16,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:16,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-07 00:50:16,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:16,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-07 00:50:16,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:16,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-07 00:50:16,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:16,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:50:16,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:16,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-07 00:50:16,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:16,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-07 00:50:16,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:16,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-07 00:50:16,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:16,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-07 00:50:16,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:16,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-07 00:50:16,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:16,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-07 00:50:16,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:16,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-07 00:50:16,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:16,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-07 00:50:16,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:16,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-07 00:50:16,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:16,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-07 00:50:16,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:16,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-07 00:50:16,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:16,401 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2021-12-07 00:50:16,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:50:16,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570869145] [2021-12-07 00:50:16,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570869145] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:50:16,401 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:50:16,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 00:50:16,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029923532] [2021-12-07 00:50:16,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:50:16,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:50:16,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:50:16,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:50:16,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:50:16,402 INFO L87 Difference]: Start difference. First operand 8508 states and 12507 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-07 00:50:16,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:50:16,772 INFO L93 Difference]: Finished difference Result 8514 states and 12512 transitions. [2021-12-07 00:50:16,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 00:50:16,772 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 103 [2021-12-07 00:50:16,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:50:16,814 INFO L225 Difference]: With dead ends: 8514 [2021-12-07 00:50:16,815 INFO L226 Difference]: Without dead ends: 8512 [2021-12-07 00:50:16,817 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-07 00:50:16,817 INFO L933 BasicCegarLoop]: 11831 mSDtfsCounter, 11785 mSDsluCounter, 23637 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11794 SdHoareTripleChecker+Valid, 35468 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:50:16,817 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11794 Valid, 35468 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:50:16,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8512 states. [2021-12-07 00:50:17,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8512 to 8512. [2021-12-07 00:50:17,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8512 states, 5931 states have (on average 1.338391502276176) internal successors, (7938), 6043 states have internal predecessors, (7938), 2286 states have call successors, (2286), 295 states have call predecessors, (2286), 292 states have return successors, (2286), 2267 states have call predecessors, (2286), 2283 states have call successors, (2286) [2021-12-07 00:50:17,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8512 states to 8512 states and 12510 transitions. [2021-12-07 00:50:17,268 INFO L78 Accepts]: Start accepts. Automaton has 8512 states and 12510 transitions. Word has length 103 [2021-12-07 00:50:17,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:50:17,269 INFO L470 AbstractCegarLoop]: Abstraction has 8512 states and 12510 transitions. [2021-12-07 00:50:17,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-07 00:50:17,269 INFO L276 IsEmpty]: Start isEmpty. Operand 8512 states and 12510 transitions. [2021-12-07 00:50:17,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-12-07 00:50:17,270 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:50:17,270 INFO L514 BasicCegarLoop]: trace histogram [10, 9, 9, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:50:17,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-07 00:50:17,270 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 00:50:17,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:50:17,271 INFO L85 PathProgramCache]: Analyzing trace with hash -2122248717, now seen corresponding path program 1 times [2021-12-07 00:50:17,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:50:17,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328560740] [2021-12-07 00:50:17,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:50:17,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:50:17,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:17,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-07 00:50:17,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:17,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-07 00:50:17,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:17,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-07 00:50:17,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:17,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:50:17,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:17,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-07 00:50:17,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:17,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-07 00:50:17,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:17,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-07 00:50:17,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:17,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-07 00:50:17,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:17,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-07 00:50:17,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:17,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-07 00:50:17,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:17,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-07 00:50:17,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:17,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-07 00:50:17,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:17,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-07 00:50:17,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:17,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-07 00:50:17,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:17,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-07 00:50:17,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:17,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-07 00:50:17,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:17,742 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2021-12-07 00:50:17,742 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:50:17,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328560740] [2021-12-07 00:50:17,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328560740] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:50:17,742 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:50:17,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 00:50:17,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780918632] [2021-12-07 00:50:17,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:50:17,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:50:17,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:50:17,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:50:17,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:50:17,743 INFO L87 Difference]: Start difference. First operand 8512 states and 12510 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-07 00:50:18,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:50:18,120 INFO L93 Difference]: Finished difference Result 8518 states and 12515 transitions. [2021-12-07 00:50:18,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 00:50:18,121 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (18), 3 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 108 [2021-12-07 00:50:18,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:50:18,139 INFO L225 Difference]: With dead ends: 8518 [2021-12-07 00:50:18,139 INFO L226 Difference]: Without dead ends: 8516 [2021-12-07 00:50:18,141 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-07 00:50:18,141 INFO L933 BasicCegarLoop]: 11831 mSDtfsCounter, 11785 mSDsluCounter, 23637 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11793 SdHoareTripleChecker+Valid, 35468 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:50:18,142 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11793 Valid, 35468 Invalid, 26 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:50:18,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8516 states. [2021-12-07 00:50:18,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8516 to 8516. [2021-12-07 00:50:18,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8516 states, 5934 states have (on average 1.3382204246713851) internal successors, (7941), 6046 states have internal predecessors, (7941), 2286 states have call successors, (2286), 296 states have call predecessors, (2286), 293 states have return successors, (2286), 2267 states have call predecessors, (2286), 2283 states have call successors, (2286) [2021-12-07 00:50:18,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8516 states to 8516 states and 12513 transitions. [2021-12-07 00:50:18,607 INFO L78 Accepts]: Start accepts. Automaton has 8516 states and 12513 transitions. Word has length 108 [2021-12-07 00:50:18,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:50:18,608 INFO L470 AbstractCegarLoop]: Abstraction has 8516 states and 12513 transitions. [2021-12-07 00:50:18,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-07 00:50:18,608 INFO L276 IsEmpty]: Start isEmpty. Operand 8516 states and 12513 transitions. [2021-12-07 00:50:18,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-07 00:50:18,609 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:50:18,609 INFO L514 BasicCegarLoop]: trace histogram [11, 10, 10, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:50:18,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-07 00:50:18,610 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 00:50:18,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:50:18,610 INFO L85 PathProgramCache]: Analyzing trace with hash -2095215665, now seen corresponding path program 1 times [2021-12-07 00:50:18,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:50:18,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883616624] [2021-12-07 00:50:18,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:50:18,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:50:18,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:18,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-07 00:50:18,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:18,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-07 00:50:18,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:19,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-07 00:50:19,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:19,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:50:19,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:19,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-07 00:50:19,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:19,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-07 00:50:19,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:19,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-07 00:50:19,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:19,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-07 00:50:19,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:19,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-07 00:50:19,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:19,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-07 00:50:19,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:19,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-07 00:50:19,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:19,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-07 00:50:19,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:19,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-07 00:50:19,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:19,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-07 00:50:19,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:19,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-07 00:50:19,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:19,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-07 00:50:19,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:19,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-07 00:50:19,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:19,084 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2021-12-07 00:50:19,085 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:50:19,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883616624] [2021-12-07 00:50:19,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883616624] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:50:19,085 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:50:19,085 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 00:50:19,085 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594160913] [2021-12-07 00:50:19,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:50:19,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:50:19,085 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:50:19,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:50:19,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:50:19,086 INFO L87 Difference]: Start difference. First operand 8516 states and 12513 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-07 00:50:19,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:50:19,474 INFO L93 Difference]: Finished difference Result 8522 states and 12518 transitions. [2021-12-07 00:50:19,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 00:50:19,475 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (19), 3 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 113 [2021-12-07 00:50:19,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:50:19,493 INFO L225 Difference]: With dead ends: 8522 [2021-12-07 00:50:19,493 INFO L226 Difference]: Without dead ends: 8520 [2021-12-07 00:50:19,495 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-07 00:50:19,496 INFO L933 BasicCegarLoop]: 11831 mSDtfsCounter, 11785 mSDsluCounter, 23637 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11792 SdHoareTripleChecker+Valid, 35468 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:50:19,496 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11792 Valid, 35468 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:50:19,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8520 states. [2021-12-07 00:50:19,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8520 to 8520. [2021-12-07 00:50:19,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8520 states, 5937 states have (on average 1.3380495199595754) internal successors, (7944), 6049 states have internal predecessors, (7944), 2286 states have call successors, (2286), 297 states have call predecessors, (2286), 294 states have return successors, (2286), 2267 states have call predecessors, (2286), 2283 states have call successors, (2286) [2021-12-07 00:50:19,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8520 states to 8520 states and 12516 transitions. [2021-12-07 00:50:19,978 INFO L78 Accepts]: Start accepts. Automaton has 8520 states and 12516 transitions. Word has length 113 [2021-12-07 00:50:19,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:50:19,978 INFO L470 AbstractCegarLoop]: Abstraction has 8520 states and 12516 transitions. [2021-12-07 00:50:19,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-07 00:50:19,978 INFO L276 IsEmpty]: Start isEmpty. Operand 8520 states and 12516 transitions. [2021-12-07 00:50:19,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-12-07 00:50:19,980 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:50:19,980 INFO L514 BasicCegarLoop]: trace histogram [12, 11, 11, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:50:19,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-07 00:50:19,980 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 00:50:19,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:50:19,980 INFO L85 PathProgramCache]: Analyzing trace with hash -731918283, now seen corresponding path program 1 times [2021-12-07 00:50:19,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:50:19,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806949418] [2021-12-07 00:50:19,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:50:19,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:50:20,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:20,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-07 00:50:20,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:20,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-07 00:50:20,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:20,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-07 00:50:20,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:20,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:50:20,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:20,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-07 00:50:20,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:20,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-07 00:50:20,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:20,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-07 00:50:20,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:20,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-07 00:50:20,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:20,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-07 00:50:20,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:20,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-07 00:50:20,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:20,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-07 00:50:20,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:20,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-07 00:50:20,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:20,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-07 00:50:20,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:20,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-07 00:50:20,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:20,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-07 00:50:20,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:20,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 00:50:20,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:20,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-07 00:50:20,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:20,441 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-07 00:50:20,442 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:50:20,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806949418] [2021-12-07 00:50:20,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806949418] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:50:20,442 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:50:20,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 00:50:20,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260362590] [2021-12-07 00:50:20,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:50:20,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:50:20,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:50:20,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:50:20,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:50:20,443 INFO L87 Difference]: Start difference. First operand 8520 states and 12516 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-07 00:50:20,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:50:20,831 INFO L93 Difference]: Finished difference Result 8526 states and 12521 transitions. [2021-12-07 00:50:20,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 00:50:20,832 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (19), 3 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 105 [2021-12-07 00:50:20,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:50:20,850 INFO L225 Difference]: With dead ends: 8526 [2021-12-07 00:50:20,850 INFO L226 Difference]: Without dead ends: 8524 [2021-12-07 00:50:20,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-07 00:50:20,854 INFO L933 BasicCegarLoop]: 11831 mSDtfsCounter, 11795 mSDsluCounter, 23637 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11801 SdHoareTripleChecker+Valid, 35468 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:50:20,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11801 Valid, 35468 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:50:20,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8524 states. [2021-12-07 00:50:21,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8524 to 8524. [2021-12-07 00:50:21,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8524 states, 5940 states have (on average 1.337878787878788) internal successors, (7947), 6052 states have internal predecessors, (7947), 2286 states have call successors, (2286), 298 states have call predecessors, (2286), 295 states have return successors, (2286), 2267 states have call predecessors, (2286), 2283 states have call successors, (2286) [2021-12-07 00:50:21,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8524 states to 8524 states and 12519 transitions. [2021-12-07 00:50:21,349 INFO L78 Accepts]: Start accepts. Automaton has 8524 states and 12519 transitions. Word has length 105 [2021-12-07 00:50:21,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:50:21,349 INFO L470 AbstractCegarLoop]: Abstraction has 8524 states and 12519 transitions. [2021-12-07 00:50:21,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-07 00:50:21,349 INFO L276 IsEmpty]: Start isEmpty. Operand 8524 states and 12519 transitions. [2021-12-07 00:50:21,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-12-07 00:50:21,351 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:50:21,351 INFO L514 BasicCegarLoop]: trace histogram [13, 12, 12, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:50:21,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-07 00:50:21,351 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 00:50:21,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:50:21,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1207247375, now seen corresponding path program 1 times [2021-12-07 00:50:21,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:50:21,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053266556] [2021-12-07 00:50:21,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:50:21,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:50:21,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:21,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-07 00:50:21,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:21,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-07 00:50:21,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:21,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-07 00:50:21,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:21,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:50:21,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:21,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-07 00:50:21,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:21,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-07 00:50:21,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:21,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-07 00:50:21,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:21,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-07 00:50:21,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:21,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-07 00:50:21,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:21,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-07 00:50:21,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:21,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-07 00:50:21,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:21,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-07 00:50:21,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:21,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-07 00:50:21,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:21,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-07 00:50:21,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:21,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-07 00:50:21,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:21,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-07 00:50:21,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:21,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-07 00:50:21,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:21,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-07 00:50:21,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:21,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-07 00:50:21,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:21,836 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2021-12-07 00:50:21,837 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:50:21,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053266556] [2021-12-07 00:50:21,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053266556] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:50:21,837 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:50:21,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 00:50:21,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659765041] [2021-12-07 00:50:21,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:50:21,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:50:21,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:50:21,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:50:21,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:50:21,838 INFO L87 Difference]: Start difference. First operand 8524 states and 12519 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-07 00:50:22,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:50:22,242 INFO L93 Difference]: Finished difference Result 8530 states and 12524 transitions. [2021-12-07 00:50:22,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 00:50:22,243 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 123 [2021-12-07 00:50:22,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:50:22,263 INFO L225 Difference]: With dead ends: 8530 [2021-12-07 00:50:22,263 INFO L226 Difference]: Without dead ends: 8528 [2021-12-07 00:50:22,267 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-07 00:50:22,268 INFO L933 BasicCegarLoop]: 11831 mSDtfsCounter, 11785 mSDsluCounter, 23637 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11790 SdHoareTripleChecker+Valid, 35468 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:50:22,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11790 Valid, 35468 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:50:22,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8528 states. [2021-12-07 00:50:22,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8528 to 8528. [2021-12-07 00:50:22,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8528 states, 5943 states have (on average 1.337708228167592) internal successors, (7950), 6055 states have internal predecessors, (7950), 2286 states have call successors, (2286), 299 states have call predecessors, (2286), 296 states have return successors, (2286), 2267 states have call predecessors, (2286), 2283 states have call successors, (2286) [2021-12-07 00:50:22,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8528 states to 8528 states and 12522 transitions. [2021-12-07 00:50:22,784 INFO L78 Accepts]: Start accepts. Automaton has 8528 states and 12522 transitions. Word has length 123 [2021-12-07 00:50:22,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:50:22,784 INFO L470 AbstractCegarLoop]: Abstraction has 8528 states and 12522 transitions. [2021-12-07 00:50:22,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-07 00:50:22,785 INFO L276 IsEmpty]: Start isEmpty. Operand 8528 states and 12522 transitions. [2021-12-07 00:50:22,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-12-07 00:50:22,786 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:50:22,786 INFO L514 BasicCegarLoop]: trace histogram [14, 13, 13, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:50:22,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-07 00:50:22,786 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 00:50:22,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:50:22,787 INFO L85 PathProgramCache]: Analyzing trace with hash -164302733, now seen corresponding path program 1 times [2021-12-07 00:50:22,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:50:22,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212640682] [2021-12-07 00:50:22,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:50:22,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:50:22,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:23,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-07 00:50:23,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:23,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-07 00:50:23,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:23,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-07 00:50:23,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:23,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:50:23,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:23,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-07 00:50:23,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:23,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-07 00:50:23,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:23,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-07 00:50:23,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:23,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-07 00:50:23,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:23,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-07 00:50:23,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:23,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-07 00:50:23,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:23,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-07 00:50:23,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:23,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-07 00:50:23,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:23,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-07 00:50:23,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:23,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-07 00:50:23,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:23,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-07 00:50:23,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:23,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-07 00:50:23,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:23,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-07 00:50:23,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:23,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-07 00:50:23,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:23,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-07 00:50:23,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:23,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-07 00:50:23,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:23,279 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2021-12-07 00:50:23,279 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:50:23,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212640682] [2021-12-07 00:50:23,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212640682] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:50:23,279 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:50:23,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 00:50:23,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818763676] [2021-12-07 00:50:23,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:50:23,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:50:23,280 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:50:23,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:50:23,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:50:23,280 INFO L87 Difference]: Start difference. First operand 8528 states and 12522 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-07 00:50:23,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:50:23,672 INFO L93 Difference]: Finished difference Result 8534 states and 12527 transitions. [2021-12-07 00:50:23,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 00:50:23,673 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 128 [2021-12-07 00:50:23,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:50:23,694 INFO L225 Difference]: With dead ends: 8534 [2021-12-07 00:50:23,694 INFO L226 Difference]: Without dead ends: 8532 [2021-12-07 00:50:23,698 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-07 00:50:23,698 INFO L933 BasicCegarLoop]: 11831 mSDtfsCounter, 11785 mSDsluCounter, 23637 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11789 SdHoareTripleChecker+Valid, 35468 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:50:23,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11789 Valid, 35468 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:50:23,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8532 states. [2021-12-07 00:50:24,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8532 to 8532. [2021-12-07 00:50:24,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8532 states, 5946 states have (on average 1.3375378405650857) internal successors, (7953), 6058 states have internal predecessors, (7953), 2286 states have call successors, (2286), 300 states have call predecessors, (2286), 297 states have return successors, (2286), 2267 states have call predecessors, (2286), 2283 states have call successors, (2286) [2021-12-07 00:50:24,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8532 states to 8532 states and 12525 transitions. [2021-12-07 00:50:24,253 INFO L78 Accepts]: Start accepts. Automaton has 8532 states and 12525 transitions. Word has length 128 [2021-12-07 00:50:24,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:50:24,254 INFO L470 AbstractCegarLoop]: Abstraction has 8532 states and 12525 transitions. [2021-12-07 00:50:24,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-07 00:50:24,254 INFO L276 IsEmpty]: Start isEmpty. Operand 8532 states and 12525 transitions. [2021-12-07 00:50:24,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-12-07 00:50:24,255 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:50:24,255 INFO L514 BasicCegarLoop]: trace histogram [15, 14, 14, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:50:24,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-07 00:50:24,256 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 00:50:24,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:50:24,256 INFO L85 PathProgramCache]: Analyzing trace with hash -529804531, now seen corresponding path program 1 times [2021-12-07 00:50:24,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:50:24,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571683645] [2021-12-07 00:50:24,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:50:24,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:50:24,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:24,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-07 00:50:24,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:24,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-07 00:50:24,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:24,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-07 00:50:24,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:24,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:50:24,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:24,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-07 00:50:24,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:24,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-07 00:50:24,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:24,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-07 00:50:24,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:24,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-07 00:50:24,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:24,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-07 00:50:24,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:24,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-07 00:50:24,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:24,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-07 00:50:24,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:24,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-07 00:50:24,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:24,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-07 00:50:24,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:24,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-07 00:50:24,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:24,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-07 00:50:24,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:24,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 00:50:24,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:24,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-07 00:50:24,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:24,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-07 00:50:24,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:24,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-07 00:50:24,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:24,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-07 00:50:24,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:24,738 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2021-12-07 00:50:24,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:50:24,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571683645] [2021-12-07 00:50:24,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571683645] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:50:24,739 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:50:24,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 00:50:24,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410987629] [2021-12-07 00:50:24,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:50:24,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:50:24,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:50:24,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:50:24,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:50:24,740 INFO L87 Difference]: Start difference. First operand 8532 states and 12525 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-07 00:50:25,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:50:25,145 INFO L93 Difference]: Finished difference Result 8538 states and 12530 transitions. [2021-12-07 00:50:25,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 00:50:25,145 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 120 [2021-12-07 00:50:25,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:50:25,166 INFO L225 Difference]: With dead ends: 8538 [2021-12-07 00:50:25,166 INFO L226 Difference]: Without dead ends: 8536 [2021-12-07 00:50:25,170 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-07 00:50:25,170 INFO L933 BasicCegarLoop]: 11831 mSDtfsCounter, 11795 mSDsluCounter, 23637 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11798 SdHoareTripleChecker+Valid, 35468 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:50:25,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11798 Valid, 35468 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:50:25,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8536 states. [2021-12-07 00:50:25,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8536 to 8536. [2021-12-07 00:50:25,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8536 states, 5949 states have (on average 1.3373676248108926) internal successors, (7956), 6061 states have internal predecessors, (7956), 2286 states have call successors, (2286), 301 states have call predecessors, (2286), 298 states have return successors, (2286), 2267 states have call predecessors, (2286), 2283 states have call successors, (2286) [2021-12-07 00:50:25,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8536 states to 8536 states and 12528 transitions. [2021-12-07 00:50:25,729 INFO L78 Accepts]: Start accepts. Automaton has 8536 states and 12528 transitions. Word has length 120 [2021-12-07 00:50:25,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:50:25,729 INFO L470 AbstractCegarLoop]: Abstraction has 8536 states and 12528 transitions. [2021-12-07 00:50:25,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-07 00:50:25,729 INFO L276 IsEmpty]: Start isEmpty. Operand 8536 states and 12528 transitions. [2021-12-07 00:50:25,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-12-07 00:50:25,731 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:50:25,731 INFO L514 BasicCegarLoop]: trace histogram [16, 15, 15, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:50:25,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-07 00:50:25,731 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 00:50:25,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:50:25,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1041587637, now seen corresponding path program 1 times [2021-12-07 00:50:25,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:50:25,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108854760] [2021-12-07 00:50:25,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:50:25,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:50:25,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:26,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-07 00:50:26,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:26,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-07 00:50:26,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:26,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-07 00:50:26,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:26,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:50:26,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:26,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-07 00:50:26,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:26,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-07 00:50:26,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:26,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-07 00:50:26,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:26,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-07 00:50:26,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:26,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-07 00:50:26,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:26,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-07 00:50:26,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:26,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-07 00:50:26,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:26,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-07 00:50:26,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:26,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-07 00:50:26,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:26,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-07 00:50:26,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:26,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-07 00:50:26,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:26,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 00:50:26,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:26,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-07 00:50:26,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:26,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-07 00:50:26,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:26,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-07 00:50:26,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:26,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-07 00:50:26,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:26,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-07 00:50:26,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:26,209 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2021-12-07 00:50:26,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:50:26,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108854760] [2021-12-07 00:50:26,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108854760] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:50:26,209 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:50:26,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 00:50:26,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758731616] [2021-12-07 00:50:26,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:50:26,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:50:26,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:50:26,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:50:26,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:50:26,210 INFO L87 Difference]: Start difference. First operand 8536 states and 12528 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-07 00:50:26,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:50:26,647 INFO L93 Difference]: Finished difference Result 8542 states and 12533 transitions. [2021-12-07 00:50:26,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 00:50:26,648 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 125 [2021-12-07 00:50:26,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:50:26,663 INFO L225 Difference]: With dead ends: 8542 [2021-12-07 00:50:26,664 INFO L226 Difference]: Without dead ends: 8540 [2021-12-07 00:50:26,666 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-07 00:50:26,666 INFO L933 BasicCegarLoop]: 11831 mSDtfsCounter, 11795 mSDsluCounter, 23637 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11797 SdHoareTripleChecker+Valid, 35468 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:50:26,666 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11797 Valid, 35468 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:50:26,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8540 states. [2021-12-07 00:50:27,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8540 to 8540. [2021-12-07 00:50:27,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8540 states, 5952 states have (on average 1.3371975806451613) internal successors, (7959), 6064 states have internal predecessors, (7959), 2286 states have call successors, (2286), 302 states have call predecessors, (2286), 299 states have return successors, (2286), 2267 states have call predecessors, (2286), 2283 states have call successors, (2286) [2021-12-07 00:50:27,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8540 states to 8540 states and 12531 transitions. [2021-12-07 00:50:27,191 INFO L78 Accepts]: Start accepts. Automaton has 8540 states and 12531 transitions. Word has length 125 [2021-12-07 00:50:27,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:50:27,192 INFO L470 AbstractCegarLoop]: Abstraction has 8540 states and 12531 transitions. [2021-12-07 00:50:27,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-07 00:50:27,192 INFO L276 IsEmpty]: Start isEmpty. Operand 8540 states and 12531 transitions. [2021-12-07 00:50:27,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-12-07 00:50:27,194 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:50:27,194 INFO L514 BasicCegarLoop]: trace histogram [17, 16, 16, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:50:27,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-07 00:50:27,194 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 00:50:27,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:50:27,194 INFO L85 PathProgramCache]: Analyzing trace with hash 677179023, now seen corresponding path program 1 times [2021-12-07 00:50:27,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:50:27,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174350214] [2021-12-07 00:50:27,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:50:27,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:50:27,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:27,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-07 00:50:27,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:27,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-07 00:50:27,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:27,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-07 00:50:27,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:27,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:50:27,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:27,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-07 00:50:27,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:27,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-07 00:50:27,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:27,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-07 00:50:27,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:27,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-07 00:50:27,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:27,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-07 00:50:27,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:27,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-07 00:50:27,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:27,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-07 00:50:27,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:27,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-07 00:50:27,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:27,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-07 00:50:27,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:27,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-07 00:50:27,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:27,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-07 00:50:27,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:27,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-07 00:50:27,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:27,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-07 00:50:27,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:27,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-07 00:50:27,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:27,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-07 00:50:27,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:27,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-07 00:50:27,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:27,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-07 00:50:27,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:27,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-07 00:50:27,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:27,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-07 00:50:27,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:27,710 INFO L134 CoverageAnalysis]: Checked inductivity of 533 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 501 trivial. 0 not checked. [2021-12-07 00:50:27,710 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:50:27,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174350214] [2021-12-07 00:50:27,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174350214] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:50:27,711 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:50:27,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 00:50:27,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885325139] [2021-12-07 00:50:27,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:50:27,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:50:27,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:50:27,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:50:27,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:50:27,712 INFO L87 Difference]: Start difference. First operand 8540 states and 12531 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-07 00:50:28,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:50:28,307 INFO L93 Difference]: Finished difference Result 8832 states and 12921 transitions. [2021-12-07 00:50:28,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 00:50:28,308 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 143 [2021-12-07 00:50:28,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:50:28,328 INFO L225 Difference]: With dead ends: 8832 [2021-12-07 00:50:28,329 INFO L226 Difference]: Without dead ends: 8828 [2021-12-07 00:50:28,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-07 00:50:28,333 INFO L933 BasicCegarLoop]: 11910 mSDtfsCounter, 11546 mSDsluCounter, 24404 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11547 SdHoareTripleChecker+Valid, 36314 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:50:28,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11547 Valid, 36314 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:50:28,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8828 states. [2021-12-07 00:50:28,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8828 to 8824. [2021-12-07 00:50:28,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8824 states, 6134 states have (on average 1.3343658298011085) internal successors, (8185), 6246 states have internal predecessors, (8185), 2365 states have call successors, (2365), 326 states have call predecessors, (2365), 322 states have return successors, (2365), 2346 states have call predecessors, (2365), 2362 states have call successors, (2365) [2021-12-07 00:50:28,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8824 states to 8824 states and 12915 transitions. [2021-12-07 00:50:28,883 INFO L78 Accepts]: Start accepts. Automaton has 8824 states and 12915 transitions. Word has length 143 [2021-12-07 00:50:28,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:50:28,884 INFO L470 AbstractCegarLoop]: Abstraction has 8824 states and 12915 transitions. [2021-12-07 00:50:28,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-07 00:50:28,884 INFO L276 IsEmpty]: Start isEmpty. Operand 8824 states and 12915 transitions. [2021-12-07 00:50:28,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-12-07 00:50:28,886 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:50:28,886 INFO L514 BasicCegarLoop]: trace histogram [18, 17, 17, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:50:28,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-07 00:50:28,887 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 00:50:28,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:50:28,887 INFO L85 PathProgramCache]: Analyzing trace with hash -877624203, now seen corresponding path program 1 times [2021-12-07 00:50:28,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:50:28,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603656616] [2021-12-07 00:50:28,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:50:28,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:50:29,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:29,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-07 00:50:29,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:29,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-07 00:50:29,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:29,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-07 00:50:29,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:29,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:50:29,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:29,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-07 00:50:29,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:29,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-07 00:50:29,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:29,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-07 00:50:29,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:29,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-07 00:50:29,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:29,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-07 00:50:29,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:29,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-07 00:50:29,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:29,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-07 00:50:29,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:29,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-07 00:50:29,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:29,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-07 00:50:29,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:29,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-07 00:50:29,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:29,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-07 00:50:29,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:29,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 00:50:29,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:29,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-07 00:50:29,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:29,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-07 00:50:29,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:29,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-07 00:50:29,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:29,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-07 00:50:29,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:29,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-07 00:50:29,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:29,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-07 00:50:29,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:29,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-07 00:50:29,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:29,404 INFO L134 CoverageAnalysis]: Checked inductivity of 593 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 559 trivial. 0 not checked. [2021-12-07 00:50:29,404 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:50:29,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603656616] [2021-12-07 00:50:29,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603656616] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:50:29,405 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:50:29,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 00:50:29,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981118530] [2021-12-07 00:50:29,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:50:29,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:50:29,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:50:29,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:50:29,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:50:29,406 INFO L87 Difference]: Start difference. First operand 8824 states and 12915 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-07 00:50:29,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:50:29,852 INFO L93 Difference]: Finished difference Result 8824 states and 12915 transitions. [2021-12-07 00:50:29,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 00:50:29,852 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 135 [2021-12-07 00:50:29,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:50:29,873 INFO L225 Difference]: With dead ends: 8824 [2021-12-07 00:50:29,873 INFO L226 Difference]: Without dead ends: 8682 [2021-12-07 00:50:29,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-07 00:50:29,878 INFO L933 BasicCegarLoop]: 11829 mSDtfsCounter, 11791 mSDsluCounter, 23636 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11791 SdHoareTripleChecker+Valid, 35465 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:50:29,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11791 Valid, 35465 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:50:29,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8682 states. [2021-12-07 00:50:30,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8682 to 8682. [2021-12-07 00:50:30,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8682 states, 6043 states have (on average 1.338077114016217) internal successors, (8086), 6152 states have internal predecessors, (8086), 2332 states have call successors, (2332), 307 states have call predecessors, (2332), 305 states have return successors, (2335), 2316 states have call predecessors, (2335), 2332 states have call successors, (2335) [2021-12-07 00:50:30,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8682 states to 8682 states and 12753 transitions. [2021-12-07 00:50:30,438 INFO L78 Accepts]: Start accepts. Automaton has 8682 states and 12753 transitions. Word has length 135 [2021-12-07 00:50:30,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:50:30,438 INFO L470 AbstractCegarLoop]: Abstraction has 8682 states and 12753 transitions. [2021-12-07 00:50:30,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-07 00:50:30,438 INFO L276 IsEmpty]: Start isEmpty. Operand 8682 states and 12753 transitions. [2021-12-07 00:50:30,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-12-07 00:50:30,440 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:50:30,441 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:50:30,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-07 00:50:30,441 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 00:50:30,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:50:30,441 INFO L85 PathProgramCache]: Analyzing trace with hash -679166517, now seen corresponding path program 1 times [2021-12-07 00:50:30,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:50:30,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67293539] [2021-12-07 00:50:30,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:50:30,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:50:30,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:30,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-07 00:50:30,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:30,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-07 00:50:30,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:30,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-07 00:50:30,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:30,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:50:30,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:30,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:50:30,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:30,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:50:30,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:30,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-07 00:50:30,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:30,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:50:30,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:31,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:50:31,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:31,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:50:31,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:31,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-07 00:50:31,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:31,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:50:31,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:31,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:50:31,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:31,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:50:31,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:31,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-07 00:50:31,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:31,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 00:50:31,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:31,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-07 00:50:31,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:31,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-07 00:50:31,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:31,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:50:31,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:31,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-07 00:50:31,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:31,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-07 00:50:31,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:31,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-07 00:50:31,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:31,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-07 00:50:31,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:31,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-07 00:50:31,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:31,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-07 00:50:31,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:31,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-07 00:50:31,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:31,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:50:31,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:31,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-07 00:50:31,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:31,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-07 00:50:31,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:31,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-07 00:50:31,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:31,195 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-12-07 00:50:31,195 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:50:31,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67293539] [2021-12-07 00:50:31,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67293539] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:50:31,195 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:50:31,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 00:50:31,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842217785] [2021-12-07 00:50:31,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:50:31,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:50:31,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:50:31,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:50:31,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:50:31,197 INFO L87 Difference]: Start difference. First operand 8682 states and 12753 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-07 00:50:44,257 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:50:55,937 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:50:58,145 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:51:00,679 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:51:02,856 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:51:03,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:51:03,182 INFO L93 Difference]: Finished difference Result 20092 states and 29786 transitions. [2021-12-07 00:51:03,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 00:51:03,183 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 198 [2021-12-07 00:51:03,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:51:03,217 INFO L225 Difference]: With dead ends: 20092 [2021-12-07 00:51:03,217 INFO L226 Difference]: Without dead ends: 11427 [2021-12-07 00:51:03,246 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-07 00:51:03,247 INFO L933 BasicCegarLoop]: 11983 mSDtfsCounter, 6527 mSDsluCounter, 26981 mSDsCounter, 0 mSdLazyCounter, 5917 mSolverCounterSat, 3987 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6968 SdHoareTripleChecker+Valid, 38964 SdHoareTripleChecker+Invalid, 9909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3987 IncrementalHoareTripleChecker+Valid, 5917 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.8s IncrementalHoareTripleChecker+Time [2021-12-07 00:51:03,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6968 Valid, 38964 Invalid, 9909 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3987 Valid, 5917 Invalid, 5 Unknown, 0 Unchecked, 30.8s Time] [2021-12-07 00:51:03,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11427 states. [2021-12-07 00:51:03,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11427 to 8684. [2021-12-07 00:51:03,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8684 states, 6045 states have (on average 1.3379652605459058) internal successors, (8088), 6154 states have internal predecessors, (8088), 2332 states have call successors, (2332), 307 states have call predecessors, (2332), 305 states have return successors, (2335), 2316 states have call predecessors, (2335), 2332 states have call successors, (2335) [2021-12-07 00:51:03,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8684 states to 8684 states and 12755 transitions. [2021-12-07 00:51:03,925 INFO L78 Accepts]: Start accepts. Automaton has 8684 states and 12755 transitions. Word has length 198 [2021-12-07 00:51:03,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:51:03,926 INFO L470 AbstractCegarLoop]: Abstraction has 8684 states and 12755 transitions. [2021-12-07 00:51:03,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-07 00:51:03,926 INFO L276 IsEmpty]: Start isEmpty. Operand 8684 states and 12755 transitions. [2021-12-07 00:51:03,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-12-07 00:51:03,929 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:51:03,929 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:51:03,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-07 00:51:03,929 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 00:51:03,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:51:03,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1051934223, now seen corresponding path program 1 times [2021-12-07 00:51:03,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:51:03,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338619754] [2021-12-07 00:51:03,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:51:03,930 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:51:04,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:04,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-07 00:51:04,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:04,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-07 00:51:04,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:04,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-07 00:51:04,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:04,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:51:04,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:04,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:51:04,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:04,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:51:04,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:04,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-07 00:51:04,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:04,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:51:04,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:04,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:51:04,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:04,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:51:04,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:04,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-07 00:51:04,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:04,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:51:04,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:04,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:51:04,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:04,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:51:04,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:04,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-07 00:51:04,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:04,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 00:51:04,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:04,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-07 00:51:04,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:04,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-07 00:51:04,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:04,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:51:04,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:04,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-07 00:51:04,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:04,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-07 00:51:04,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:04,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-07 00:51:04,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:04,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-07 00:51:04,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:04,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-07 00:51:04,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:04,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-07 00:51:04,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:04,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-07 00:51:04,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:04,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:51:04,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:04,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-07 00:51:04,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:04,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-07 00:51:04,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:04,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-07 00:51:04,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:04,915 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-12-07 00:51:04,915 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:51:04,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338619754] [2021-12-07 00:51:04,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338619754] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:51:04,915 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:51:04,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 00:51:04,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777733478] [2021-12-07 00:51:04,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:51:04,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 00:51:04,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:51:04,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 00:51:04,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-07 00:51:04,916 INFO L87 Difference]: Start difference. First operand 8684 states and 12755 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-07 00:51:17,065 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:51:28,534 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:51:30,739 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:51:31,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:51:31,323 INFO L93 Difference]: Finished difference Result 9178 states and 13534 transitions. [2021-12-07 00:51:31,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 00:51:31,324 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 198 [2021-12-07 00:51:31,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:51:31,352 INFO L225 Difference]: With dead ends: 9178 [2021-12-07 00:51:31,352 INFO L226 Difference]: Without dead ends: 9176 [2021-12-07 00:51:31,357 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-07 00:51:31,358 INFO L933 BasicCegarLoop]: 11421 mSDtfsCounter, 11796 mSDsluCounter, 26867 mSDsCounter, 0 mSdLazyCounter, 5623 mSolverCounterSat, 3668 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13119 SdHoareTripleChecker+Valid, 38288 SdHoareTripleChecker+Invalid, 9294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3668 IncrementalHoareTripleChecker+Valid, 5623 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.4s IncrementalHoareTripleChecker+Time [2021-12-07 00:51:31,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13119 Valid, 38288 Invalid, 9294 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3668 Valid, 5623 Invalid, 3 Unknown, 0 Unchecked, 25.4s Time] [2021-12-07 00:51:31,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9176 states. [2021-12-07 00:51:31,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9176 to 8688. [2021-12-07 00:51:31,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8688 states, 6048 states have (on average 1.337797619047619) internal successors, (8091), 6157 states have internal predecessors, (8091), 2332 states have call successors, (2332), 308 states have call predecessors, (2332), 306 states have return successors, (2335), 2316 states have call predecessors, (2335), 2332 states have call successors, (2335) [2021-12-07 00:51:31,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8688 states to 8688 states and 12758 transitions. [2021-12-07 00:51:31,983 INFO L78 Accepts]: Start accepts. Automaton has 8688 states and 12758 transitions. Word has length 198 [2021-12-07 00:51:31,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:51:31,984 INFO L470 AbstractCegarLoop]: Abstraction has 8688 states and 12758 transitions. [2021-12-07 00:51:31,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-07 00:51:31,984 INFO L276 IsEmpty]: Start isEmpty. Operand 8688 states and 12758 transitions. [2021-12-07 00:51:31,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2021-12-07 00:51:31,989 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:51:31,989 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:51:31,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-07 00:51:31,989 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 00:51:31,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:51:31,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1221216110, now seen corresponding path program 1 times [2021-12-07 00:51:31,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:51:31,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274013628] [2021-12-07 00:51:31,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:51:31,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:51:32,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:32,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-07 00:51:32,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:32,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-07 00:51:32,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:32,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-07 00:51:32,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:32,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:51:32,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:32,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:51:32,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:32,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:51:32,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:32,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-07 00:51:32,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:32,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:51:32,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:32,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:51:32,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:32,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:51:32,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:32,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-07 00:51:32,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:32,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:51:32,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:32,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:51:32,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:32,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:51:32,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:32,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-07 00:51:32,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:32,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 00:51:32,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:32,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-07 00:51:32,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:32,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-07 00:51:32,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:32,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:51:32,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:32,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-07 00:51:32,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:32,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-07 00:51:32,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:32,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-07 00:51:32,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:32,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-07 00:51:32,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:32,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-07 00:51:32,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:32,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-07 00:51:32,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:32,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-07 00:51:32,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:32,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:51:32,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:32,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-07 00:51:32,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:32,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-07 00:51:32,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:32,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-07 00:51:32,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:32,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-07 00:51:32,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:32,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-07 00:51:32,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:32,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-12-07 00:51:32,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:32,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-07 00:51:32,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:32,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-07 00:51:32,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:32,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-07 00:51:32,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:32,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-12-07 00:51:32,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:32,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-12-07 00:51:32,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:32,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:51:32,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:32,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-07 00:51:32,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:32,781 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2021-12-07 00:51:32,781 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:51:32,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274013628] [2021-12-07 00:51:32,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274013628] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:51:32,782 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:51:32,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-07 00:51:32,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369845782] [2021-12-07 00:51:32,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:51:32,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:51:32,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:51:32,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:51:32,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:51:32,783 INFO L87 Difference]: Start difference. First operand 8688 states and 12758 transitions. Second operand has 9 states, 8 states have (on average 15.5) internal successors, (124), 6 states have internal predecessors, (124), 3 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (34), 4 states have call predecessors, (34), 2 states have call successors, (34) [2021-12-07 00:51:52,398 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:52:08,443 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:52:10,644 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:52:11,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:52:11,346 INFO L93 Difference]: Finished difference Result 17861 states and 26315 transitions. [2021-12-07 00:52:11,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-07 00:52:11,347 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 15.5) internal successors, (124), 6 states have internal predecessors, (124), 3 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (34), 4 states have call predecessors, (34), 2 states have call successors, (34) Word has length 261 [2021-12-07 00:52:11,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:52:11,390 INFO L225 Difference]: With dead ends: 17861 [2021-12-07 00:52:11,390 INFO L226 Difference]: Without dead ends: 9190 [2021-12-07 00:52:11,421 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2021-12-07 00:52:11,422 INFO L933 BasicCegarLoop]: 11200 mSDtfsCounter, 1780 mSDsluCounter, 66825 mSDsCounter, 0 mSdLazyCounter, 13576 mSolverCounterSat, 2265 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2218 SdHoareTripleChecker+Valid, 78025 SdHoareTripleChecker+Invalid, 15844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2265 IncrementalHoareTripleChecker+Valid, 13576 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.2s IncrementalHoareTripleChecker+Time [2021-12-07 00:52:11,422 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2218 Valid, 78025 Invalid, 15844 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2265 Valid, 13576 Invalid, 3 Unknown, 0 Unchecked, 37.2s Time] [2021-12-07 00:52:11,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9190 states. [2021-12-07 00:52:11,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9190 to 8694. [2021-12-07 00:52:12,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8694 states, 6052 states have (on average 1.3375743555849307) internal successors, (8095), 6159 states have internal predecessors, (8095), 2334 states have call successors, (2334), 308 states have call predecessors, (2334), 306 states have return successors, (2337), 2318 states have call predecessors, (2337), 2334 states have call successors, (2337) [2021-12-07 00:52:12,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8694 states to 8694 states and 12766 transitions. [2021-12-07 00:52:12,042 INFO L78 Accepts]: Start accepts. Automaton has 8694 states and 12766 transitions. Word has length 261 [2021-12-07 00:52:12,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:52:12,043 INFO L470 AbstractCegarLoop]: Abstraction has 8694 states and 12766 transitions. [2021-12-07 00:52:12,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 15.5) internal successors, (124), 6 states have internal predecessors, (124), 3 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (34), 4 states have call predecessors, (34), 2 states have call successors, (34) [2021-12-07 00:52:12,043 INFO L276 IsEmpty]: Start isEmpty. Operand 8694 states and 12766 transitions. [2021-12-07 00:52:12,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2021-12-07 00:52:12,048 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:52:12,048 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:52:12,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-07 00:52:12,048 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 00:52:12,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:52:12,048 INFO L85 PathProgramCache]: Analyzing trace with hash -236043385, now seen corresponding path program 1 times [2021-12-07 00:52:12,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:52:12,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405500020] [2021-12-07 00:52:12,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:52:12,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:52:12,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:12,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-07 00:52:12,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:12,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-07 00:52:12,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:12,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-07 00:52:12,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:12,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:52:12,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:12,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:52:12,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:12,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:52:12,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:12,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-07 00:52:12,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:12,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:52:12,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:12,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:52:12,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:12,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:52:12,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:12,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-07 00:52:12,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:12,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:52:12,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:12,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:52:12,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:12,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:52:12,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:12,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-07 00:52:12,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:12,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 00:52:12,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:12,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-07 00:52:12,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:12,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-07 00:52:12,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:12,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:52:12,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:12,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-07 00:52:12,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:12,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-07 00:52:12,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:12,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-07 00:52:12,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:12,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-07 00:52:12,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:12,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-07 00:52:12,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:12,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-07 00:52:12,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:12,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-07 00:52:12,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:12,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:52:12,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:12,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-07 00:52:12,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:12,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-12-07 00:52:12,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:12,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-07 00:52:12,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:12,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-07 00:52:12,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:12,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-07 00:52:12,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:12,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-07 00:52:12,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:12,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-07 00:52:12,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:12,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-07 00:52:12,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:12,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-07 00:52:12,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:12,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-12-07 00:52:12,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:12,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-07 00:52:12,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:12,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:52:12,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:12,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-07 00:52:12,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:12,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-07 00:52:12,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:12,793 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2021-12-07 00:52:12,793 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:52:12,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405500020] [2021-12-07 00:52:12,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405500020] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:52:12,794 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:52:12,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 00:52:12,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531433110] [2021-12-07 00:52:12,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:52:12,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 00:52:12,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:52:12,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 00:52:12,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-07 00:52:12,795 INFO L87 Difference]: Start difference. First operand 8694 states and 12766 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-12-07 00:52:25,807 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:52:36,647 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:52:38,805 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:52:39,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:52:39,299 INFO L93 Difference]: Finished difference Result 9182 states and 13540 transitions. [2021-12-07 00:52:39,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-07 00:52:39,300 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 262 [2021-12-07 00:52:39,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:52:39,331 INFO L225 Difference]: With dead ends: 9182 [2021-12-07 00:52:39,331 INFO L226 Difference]: Without dead ends: 9180 [2021-12-07 00:52:39,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-12-07 00:52:39,335 INFO L933 BasicCegarLoop]: 11473 mSDtfsCounter, 1810 mSDsluCounter, 37377 mSDsCounter, 0 mSdLazyCounter, 7047 mSolverCounterSat, 2270 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2247 SdHoareTripleChecker+Valid, 48850 SdHoareTripleChecker+Invalid, 9320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2270 IncrementalHoareTripleChecker+Valid, 7047 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.5s IncrementalHoareTripleChecker+Time [2021-12-07 00:52:39,336 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2247 Valid, 48850 Invalid, 9320 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2270 Valid, 7047 Invalid, 3 Unknown, 0 Unchecked, 25.5s Time] [2021-12-07 00:52:39,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9180 states. [2021-12-07 00:52:39,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9180 to 8694. [2021-12-07 00:52:39,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8694 states, 6052 states have (on average 1.3374091209517516) internal successors, (8094), 6159 states have internal predecessors, (8094), 2334 states have call successors, (2334), 308 states have call predecessors, (2334), 306 states have return successors, (2337), 2318 states have call predecessors, (2337), 2334 states have call successors, (2337) [2021-12-07 00:52:39,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8694 states to 8694 states and 12765 transitions. [2021-12-07 00:52:39,977 INFO L78 Accepts]: Start accepts. Automaton has 8694 states and 12765 transitions. Word has length 262 [2021-12-07 00:52:39,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:52:39,977 INFO L470 AbstractCegarLoop]: Abstraction has 8694 states and 12765 transitions. [2021-12-07 00:52:39,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-12-07 00:52:39,978 INFO L276 IsEmpty]: Start isEmpty. Operand 8694 states and 12765 transitions. [2021-12-07 00:52:39,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2021-12-07 00:52:39,984 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:52:39,984 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:52:39,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-07 00:52:39,984 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 00:52:39,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:52:39,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1276085753, now seen corresponding path program 1 times [2021-12-07 00:52:39,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:52:39,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574870341] [2021-12-07 00:52:39,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:52:39,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:52:40,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:40,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-07 00:52:40,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:40,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-07 00:52:40,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:40,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-07 00:52:40,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:40,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:52:40,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:40,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:52:40,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:40,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:52:40,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:40,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-07 00:52:40,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:40,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:52:40,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:40,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:52:40,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:40,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:52:40,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:40,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-07 00:52:40,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:40,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:52:40,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:40,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:52:40,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:40,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:52:40,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:40,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-07 00:52:40,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:40,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 00:52:40,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:40,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-07 00:52:40,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:40,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-07 00:52:40,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:40,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:52:40,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:40,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-07 00:52:40,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:40,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-07 00:52:40,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:40,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-07 00:52:40,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:40,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-07 00:52:40,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:40,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:52:40,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:40,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-07 00:52:40,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:40,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-07 00:52:40,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:40,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 00:52:40,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:40,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:52:40,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:40,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-07 00:52:40,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:40,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-07 00:52:40,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:40,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:52:40,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:40,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:52:40,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:40,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-07 00:52:40,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:40,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:52:40,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:40,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:52:40,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:40,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-07 00:52:40,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:40,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-12-07 00:52:40,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:40,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-07 00:52:40,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:40,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-07 00:52:40,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:40,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-07 00:52:40,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:41,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2021-12-07 00:52:41,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:52:41,013 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2021-12-07 00:52:41,013 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:52:41,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574870341] [2021-12-07 00:52:41,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574870341] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:52:41,013 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:52:41,014 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-07 00:52:41,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545463357] [2021-12-07 00:52:41,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:52:41,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:52:41,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:52:41,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:52:41,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:52:41,015 INFO L87 Difference]: Start difference. First operand 8694 states and 12765 transitions. Second operand has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 5 states have internal predecessors, (125), 3 states have call successors, (38), 6 states have call predecessors, (38), 2 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-12-07 00:53:12,972 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:53:15,083 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:53:17,144 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:53:19,158 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:53:21,222 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:53:23,291 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:53:25,351 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:53:27,415 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:53:29,515 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:53:31,537 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:53:33,565 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:53:35,636 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:54:05,227 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:54:08,615 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:54:10,814 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:54:13,357 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:54:15,545 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:54:17,738 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:54:20,054 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:54:21,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:54:21,961 INFO L93 Difference]: Finished difference Result 9657 states and 14295 transitions. [2021-12-07 00:54:21,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-07 00:54:21,961 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 5 states have internal predecessors, (125), 3 states have call successors, (38), 6 states have call predecessors, (38), 2 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 274 [2021-12-07 00:54:21,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:54:21,991 INFO L225 Difference]: With dead ends: 9657 [2021-12-07 00:54:21,991 INFO L226 Difference]: Without dead ends: 9655 [2021-12-07 00:54:21,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=117, Invalid=225, Unknown=0, NotChecked=0, Total=342 [2021-12-07 00:54:21,995 INFO L933 BasicCegarLoop]: 9510 mSDtfsCounter, 16125 mSDsluCounter, 26428 mSDsCounter, 0 mSdLazyCounter, 20553 mSolverCounterSat, 10559 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 90.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16694 SdHoareTripleChecker+Valid, 35938 SdHoareTripleChecker+Invalid, 31128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 10559 IncrementalHoareTripleChecker+Valid, 20553 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 99.2s IncrementalHoareTripleChecker+Time [2021-12-07 00:54:21,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16694 Valid, 35938 Invalid, 31128 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [10559 Valid, 20553 Invalid, 16 Unknown, 0 Unchecked, 99.2s Time] [2021-12-07 00:54:22,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9655 states. [2021-12-07 00:54:22,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9655 to 8802. [2021-12-07 00:54:22,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8802 states, 6129 states have (on average 1.3364333496492087) internal successors, (8191), 6238 states have internal predecessors, (8191), 2353 states have call successors, (2353), 322 states have call predecessors, (2353), 318 states have return successors, (2356), 2333 states have call predecessors, (2356), 2353 states have call successors, (2356) [2021-12-07 00:54:22,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8802 states to 8802 states and 12900 transitions. [2021-12-07 00:54:22,688 INFO L78 Accepts]: Start accepts. Automaton has 8802 states and 12900 transitions. Word has length 274 [2021-12-07 00:54:22,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:54:22,688 INFO L470 AbstractCegarLoop]: Abstraction has 8802 states and 12900 transitions. [2021-12-07 00:54:22,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 5 states have internal predecessors, (125), 3 states have call successors, (38), 6 states have call predecessors, (38), 2 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-12-07 00:54:22,689 INFO L276 IsEmpty]: Start isEmpty. Operand 8802 states and 12900 transitions. [2021-12-07 00:54:22,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2021-12-07 00:54:22,695 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:54:22,695 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:54:22,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-07 00:54:22,695 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 00:54:22,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:54:22,696 INFO L85 PathProgramCache]: Analyzing trace with hash 658455357, now seen corresponding path program 1 times [2021-12-07 00:54:22,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:54:22,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838578924] [2021-12-07 00:54:22,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:54:22,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:54:22,986 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-07 00:54:22,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1715388599] [2021-12-07 00:54:22,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:54:22,986 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:54:22,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f11439-dae3-4249-af99-0727fe871e7f/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:54:22,987 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f11439-dae3-4249-af99-0727fe871e7f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:54:22,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f11439-dae3-4249-af99-0727fe871e7f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-07 00:54:25,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:25,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 16453 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-07 00:54:25,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:54:25,559 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2021-12-07 00:54:25,559 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:54:25,560 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:54:25,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838578924] [2021-12-07 00:54:25,560 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-07 00:54:25,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1715388599] [2021-12-07 00:54:25,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1715388599] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:54:25,561 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:54:25,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:54:25,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090595484] [2021-12-07 00:54:25,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:54:25,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:54:25,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:54:25,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:54:25,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:54:25,563 INFO L87 Difference]: Start difference. First operand 8802 states and 12900 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-12-07 00:54:26,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:54:26,259 INFO L93 Difference]: Finished difference Result 19732 states and 29092 transitions. [2021-12-07 00:54:26,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:54:26,267 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 278 [2021-12-07 00:54:26,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:54:26,297 INFO L225 Difference]: With dead ends: 19732 [2021-12-07 00:54:26,297 INFO L226 Difference]: Without dead ends: 10947 [2021-12-07 00:54:26,322 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:54:26,323 INFO L933 BasicCegarLoop]: 13592 mSDtfsCounter, 2128 mSDsluCounter, 11983 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2671 SdHoareTripleChecker+Valid, 25575 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:54:26,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2671 Valid, 25575 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:54:26,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10947 states. [2021-12-07 00:54:26,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10947 to 8843. [2021-12-07 00:54:26,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8843 states, 6163 states have (on average 1.336524419925361) internal successors, (8237), 6272 states have internal predecessors, (8237), 2360 states have call successors, (2360), 322 states have call predecessors, (2360), 318 states have return successors, (2363), 2340 states have call predecessors, (2363), 2360 states have call successors, (2363) [2021-12-07 00:54:26,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8843 states to 8843 states and 12960 transitions. [2021-12-07 00:54:27,002 INFO L78 Accepts]: Start accepts. Automaton has 8843 states and 12960 transitions. Word has length 278 [2021-12-07 00:54:27,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:54:27,003 INFO L470 AbstractCegarLoop]: Abstraction has 8843 states and 12960 transitions. [2021-12-07 00:54:27,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-12-07 00:54:27,003 INFO L276 IsEmpty]: Start isEmpty. Operand 8843 states and 12960 transitions. [2021-12-07 00:54:27,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2021-12-07 00:54:27,009 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:54:27,009 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:54:27,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f11439-dae3-4249-af99-0727fe871e7f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-07 00:54:27,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f11439-dae3-4249-af99-0727fe871e7f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-12-07 00:54:27,210 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 00:54:27,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:54:27,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1360055231, now seen corresponding path program 1 times [2021-12-07 00:54:27,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:54:27,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093185593] [2021-12-07 00:54:27,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:54:27,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:54:27,505 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-07 00:54:27,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [583850423] [2021-12-07 00:54:27,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:54:27,505 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:54:27,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f11439-dae3-4249-af99-0727fe871e7f/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:54:27,506 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f11439-dae3-4249-af99-0727fe871e7f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:54:27,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f11439-dae3-4249-af99-0727fe871e7f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-07 00:54:29,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:29,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 16432 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-07 00:54:29,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:54:30,113 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2021-12-07 00:54:30,114 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:54:30,114 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:54:30,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093185593] [2021-12-07 00:54:30,114 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-07 00:54:30,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [583850423] [2021-12-07 00:54:30,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [583850423] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:54:30,114 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:54:30,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 00:54:30,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400849029] [2021-12-07 00:54:30,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:54:30,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 00:54:30,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:54:30,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 00:54:30,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 00:54:30,116 INFO L87 Difference]: Start difference. First operand 8843 states and 12960 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-12-07 00:54:31,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:54:31,002 INFO L93 Difference]: Finished difference Result 18066 states and 26493 transitions. [2021-12-07 00:54:31,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 00:54:31,003 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 278 [2021-12-07 00:54:31,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:54:31,032 INFO L225 Difference]: With dead ends: 18066 [2021-12-07 00:54:31,032 INFO L226 Difference]: Without dead ends: 9240 [2021-12-07 00:54:31,066 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:54:31,066 INFO L933 BasicCegarLoop]: 12169 mSDtfsCounter, 2564 mSDsluCounter, 21129 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3149 SdHoareTripleChecker+Valid, 33298 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-07 00:54:31,067 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3149 Valid, 33298 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-07 00:54:31,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9240 states. [2021-12-07 00:54:31,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9240 to 8845. [2021-12-07 00:54:31,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8845 states, 6165 states have (on average 1.3364152473641524) internal successors, (8239), 6274 states have internal predecessors, (8239), 2360 states have call successors, (2360), 322 states have call predecessors, (2360), 318 states have return successors, (2363), 2340 states have call predecessors, (2363), 2360 states have call successors, (2363) [2021-12-07 00:54:31,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8845 states to 8845 states and 12962 transitions. [2021-12-07 00:54:31,770 INFO L78 Accepts]: Start accepts. Automaton has 8845 states and 12962 transitions. Word has length 278 [2021-12-07 00:54:31,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:54:31,770 INFO L470 AbstractCegarLoop]: Abstraction has 8845 states and 12962 transitions. [2021-12-07 00:54:31,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-12-07 00:54:31,771 INFO L276 IsEmpty]: Start isEmpty. Operand 8845 states and 12962 transitions. [2021-12-07 00:54:31,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2021-12-07 00:54:31,777 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:54:31,777 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:54:31,822 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f11439-dae3-4249-af99-0727fe871e7f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-07 00:54:31,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f11439-dae3-4249-af99-0727fe871e7f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:54:31,979 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 00:54:31,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:54:31,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1267287725, now seen corresponding path program 1 times [2021-12-07 00:54:31,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:54:31,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814525996] [2021-12-07 00:54:31,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:54:31,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:54:32,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:32,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-07 00:54:32,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:32,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-07 00:54:32,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:32,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-07 00:54:32,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:32,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:54:32,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:32,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:54:32,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:32,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:54:32,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:32,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-07 00:54:32,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:32,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:54:32,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:32,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:54:32,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:32,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:54:32,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:32,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-07 00:54:32,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:32,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:54:32,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:32,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:54:32,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:32,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:54:32,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:32,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-07 00:54:32,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:32,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 00:54:32,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:32,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-07 00:54:32,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:32,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-07 00:54:32,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:32,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:54:32,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:32,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-07 00:54:32,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:32,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-07 00:54:32,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:32,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-07 00:54:32,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:32,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-07 00:54:32,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:32,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:54:32,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:32,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-07 00:54:32,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:32,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-07 00:54:32,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:32,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 00:54:32,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:32,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:54:32,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:32,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-07 00:54:32,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:32,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-07 00:54:32,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:32,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:54:32,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:32,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:54:32,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:32,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-07 00:54:32,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:32,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:54:32,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:32,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:54:32,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:32,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-07 00:54:32,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:32,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-12-07 00:54:32,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:32,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-07 00:54:32,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:32,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-07 00:54:32,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:32,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-07 00:54:32,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:32,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2021-12-07 00:54:32,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:32,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2021-12-07 00:54:32,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:32,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-07 00:54:32,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:32,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 00:54:32,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:32,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-12-07 00:54:32,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:32,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-12-07 00:54:32,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:32,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-12-07 00:54:32,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:32,838 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2021-12-07 00:54:32,839 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:54:32,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814525996] [2021-12-07 00:54:32,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814525996] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:54:32,839 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:54:32,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-07 00:54:32,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158997855] [2021-12-07 00:54:32,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:54:32,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:54:32,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:54:32,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:54:32,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:54:32,840 INFO L87 Difference]: Start difference. First operand 8845 states and 12962 transitions. Second operand has 9 states, 8 states have (on average 18.125) internal successors, (145), 4 states have internal predecessors, (145), 3 states have call successors, (44), 7 states have call predecessors, (44), 2 states have return successors, (38), 2 states have call predecessors, (38), 3 states have call successors, (38) [2021-12-07 00:55:07,628 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:55:29,459 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:55:30,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:55:30,455 INFO L93 Difference]: Finished difference Result 10782 states and 16090 transitions. [2021-12-07 00:55:30,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 00:55:30,456 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 18.125) internal successors, (145), 4 states have internal predecessors, (145), 3 states have call successors, (44), 7 states have call predecessors, (44), 2 states have return successors, (38), 2 states have call predecessors, (38), 3 states have call successors, (38) Word has length 313 [2021-12-07 00:55:30,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:55:30,496 INFO L225 Difference]: With dead ends: 10782 [2021-12-07 00:55:30,496 INFO L226 Difference]: Without dead ends: 10780 [2021-12-07 00:55:30,503 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2021-12-07 00:55:30,504 INFO L933 BasicCegarLoop]: 10737 mSDtfsCounter, 9315 mSDsluCounter, 34243 mSDsCounter, 0 mSdLazyCounter, 20497 mSolverCounterSat, 12314 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10454 SdHoareTripleChecker+Valid, 44980 SdHoareTripleChecker+Invalid, 32813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 12314 IncrementalHoareTripleChecker+Valid, 20497 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 55.8s IncrementalHoareTripleChecker+Time [2021-12-07 00:55:30,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10454 Valid, 44980 Invalid, 32813 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [12314 Valid, 20497 Invalid, 2 Unknown, 0 Unchecked, 55.8s Time] [2021-12-07 00:55:30,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10780 states. [2021-12-07 00:55:31,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10780 to 8845. [2021-12-07 00:55:31,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8845 states, 6165 states have (on average 1.3360908353609084) internal successors, (8237), 6274 states have internal predecessors, (8237), 2360 states have call successors, (2360), 322 states have call predecessors, (2360), 318 states have return successors, (2363), 2340 states have call predecessors, (2363), 2360 states have call successors, (2363) [2021-12-07 00:55:31,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8845 states to 8845 states and 12960 transitions. [2021-12-07 00:55:31,273 INFO L78 Accepts]: Start accepts. Automaton has 8845 states and 12960 transitions. Word has length 313 [2021-12-07 00:55:31,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:55:31,273 INFO L470 AbstractCegarLoop]: Abstraction has 8845 states and 12960 transitions. [2021-12-07 00:55:31,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 18.125) internal successors, (145), 4 states have internal predecessors, (145), 3 states have call successors, (44), 7 states have call predecessors, (44), 2 states have return successors, (38), 2 states have call predecessors, (38), 3 states have call successors, (38) [2021-12-07 00:55:31,273 INFO L276 IsEmpty]: Start isEmpty. Operand 8845 states and 12960 transitions. [2021-12-07 00:55:31,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2021-12-07 00:55:31,281 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:55:31,281 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:55:31,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-07 00:55:31,281 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 00:55:31,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:55:31,282 INFO L85 PathProgramCache]: Analyzing trace with hash 380544273, now seen corresponding path program 1 times [2021-12-07 00:55:31,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:55:31,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656802400] [2021-12-07 00:55:31,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:55:31,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:55:31,583 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-07 00:55:31,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [629203745] [2021-12-07 00:55:31,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:55:31,583 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:55:31,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f11439-dae3-4249-af99-0727fe871e7f/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:55:31,584 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f11439-dae3-4249-af99-0727fe871e7f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:55:31,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f11439-dae3-4249-af99-0727fe871e7f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-07 00:55:33,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:33,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 16666 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-07 00:55:33,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:55:34,181 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2021-12-07 00:55:34,182 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:55:34,182 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:55:34,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656802400] [2021-12-07 00:55:34,182 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-07 00:55:34,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [629203745] [2021-12-07 00:55:34,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [629203745] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:55:34,182 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:55:34,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 00:55:34,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286242556] [2021-12-07 00:55:34,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:55:34,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 00:55:34,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:55:34,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 00:55:34,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 00:55:34,184 INFO L87 Difference]: Start difference. First operand 8845 states and 12960 transitions. Second operand has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-12-07 00:55:35,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:55:35,239 INFO L93 Difference]: Finished difference Result 17863 states and 26186 transitions. [2021-12-07 00:55:35,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 00:55:35,240 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 300 [2021-12-07 00:55:35,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:55:35,274 INFO L225 Difference]: With dead ends: 17863 [2021-12-07 00:55:35,274 INFO L226 Difference]: Without dead ends: 9035 [2021-12-07 00:55:35,304 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:55:35,304 INFO L933 BasicCegarLoop]: 11991 mSDtfsCounter, 373 mSDsluCounter, 23523 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 35514 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-07 00:55:35,305 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [373 Valid, 35514 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-07 00:55:35,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9035 states. [2021-12-07 00:55:35,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9035 to 8847. [2021-12-07 00:55:35,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8847 states, 6167 states have (on average 1.3359818388195233) internal successors, (8239), 6276 states have internal predecessors, (8239), 2360 states have call successors, (2360), 322 states have call predecessors, (2360), 318 states have return successors, (2363), 2340 states have call predecessors, (2363), 2360 states have call successors, (2363) [2021-12-07 00:55:35,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8847 states to 8847 states and 12962 transitions. [2021-12-07 00:55:35,967 INFO L78 Accepts]: Start accepts. Automaton has 8847 states and 12962 transitions. Word has length 300 [2021-12-07 00:55:35,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:55:35,968 INFO L470 AbstractCegarLoop]: Abstraction has 8847 states and 12962 transitions. [2021-12-07 00:55:35,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-12-07 00:55:35,968 INFO L276 IsEmpty]: Start isEmpty. Operand 8847 states and 12962 transitions. [2021-12-07 00:55:35,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-12-07 00:55:35,976 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:55:35,976 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:55:36,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f11439-dae3-4249-af99-0727fe871e7f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-07 00:55:36,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f11439-dae3-4249-af99-0727fe871e7f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-12-07 00:55:36,178 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 00:55:36,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:55:36,179 INFO L85 PathProgramCache]: Analyzing trace with hash -811725244, now seen corresponding path program 1 times [2021-12-07 00:55:36,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:55:36,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638284618] [2021-12-07 00:55:36,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:55:36,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:55:36,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:36,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-07 00:55:36,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:36,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-07 00:55:36,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:36,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-07 00:55:36,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:36,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:55:36,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:36,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:55:36,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:36,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:55:36,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:36,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-07 00:55:36,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:36,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:55:36,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:36,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:55:36,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:36,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:55:36,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:36,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-07 00:55:36,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:36,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:55:36,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:36,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:55:36,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:36,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:55:36,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:36,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-07 00:55:36,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:36,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 00:55:36,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:36,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-07 00:55:36,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:36,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-07 00:55:36,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:36,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:55:36,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:36,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-07 00:55:36,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:36,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-07 00:55:36,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:36,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-07 00:55:36,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:36,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-07 00:55:36,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:36,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:55:36,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:36,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-07 00:55:36,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:36,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-07 00:55:36,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:36,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 00:55:36,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:36,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:55:36,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:36,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-07 00:55:36,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:36,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-07 00:55:36,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:36,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:55:36,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:36,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:55:36,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:36,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-07 00:55:36,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:36,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:55:36,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:36,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:55:36,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:36,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-07 00:55:36,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:36,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-12-07 00:55:36,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:36,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-07 00:55:36,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:36,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-07 00:55:36,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:37,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-07 00:55:37,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:37,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2021-12-07 00:55:37,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:37,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:55:37,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:37,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-07 00:55:37,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:37,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-07 00:55:37,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:37,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-07 00:55:37,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:37,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-07 00:55:37,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:37,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-07 00:55:37,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:37,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-07 00:55:37,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:37,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-07 00:55:37,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:37,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-07 00:55:37,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:37,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-07 00:55:37,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:37,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-07 00:55:37,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:37,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-07 00:55:37,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:37,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-07 00:55:37,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:37,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2021-12-07 00:55:37,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:37,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2021-12-07 00:55:37,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:37,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2021-12-07 00:55:37,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:55:37,208 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2021-12-07 00:55:37,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:55:37,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638284618] [2021-12-07 00:55:37,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638284618] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:55:37,209 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:55:37,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-07 00:55:37,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346238072] [2021-12-07 00:55:37,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:55:37,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-07 00:55:37,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:55:37,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-07 00:55:37,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-12-07 00:55:37,210 INFO L87 Difference]: Start difference. First operand 8847 states and 12962 transitions. Second operand has 10 states, 10 states have (on average 18.3) internal successors, (183), 5 states have internal predecessors, (183), 2 states have call successors, (54), 6 states have call predecessors, (54), 2 states have return successors, (48), 3 states have call predecessors, (48), 2 states have call successors, (48) [2021-12-07 00:56:09,405 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:56:11,512 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:56:13,589 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:56:15,669 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:56:17,738 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:56:19,336 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:56:21,388 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:56:23,138 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:56:25,238 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:56:27,253 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:56:29,289 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:56:31,396 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:56:54,954 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:56:58,096 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:57:00,249 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:57:02,731 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:57:03,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:57:03,868 INFO L93 Difference]: Finished difference Result 18537 states and 27313 transitions. [2021-12-07 00:57:03,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-07 00:57:03,869 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 18.3) internal successors, (183), 5 states have internal predecessors, (183), 2 states have call successors, (54), 6 states have call predecessors, (54), 2 states have return successors, (48), 3 states have call predecessors, (48), 2 states have call successors, (48) Word has length 389 [2021-12-07 00:57:03,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:57:03,902 INFO L225 Difference]: With dead ends: 18537 [2021-12-07 00:57:03,902 INFO L226 Difference]: Without dead ends: 9707 [2021-12-07 00:57:03,928 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=82, Invalid=260, Unknown=0, NotChecked=0, Total=342 [2021-12-07 00:57:03,928 INFO L933 BasicCegarLoop]: 11078 mSDtfsCounter, 4873 mSDsluCounter, 50273 mSDsCounter, 0 mSdLazyCounter, 15520 mSolverCounterSat, 7804 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 77.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5389 SdHoareTripleChecker+Valid, 61351 SdHoareTripleChecker+Invalid, 23338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 7804 IncrementalHoareTripleChecker+Valid, 15520 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 84.7s IncrementalHoareTripleChecker+Time [2021-12-07 00:57:03,928 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5389 Valid, 61351 Invalid, 23338 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [7804 Valid, 15520 Invalid, 14 Unknown, 0 Unchecked, 84.7s Time] [2021-12-07 00:57:03,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9707 states. [2021-12-07 00:57:04,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9707 to 8852. [2021-12-07 00:57:04,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8852 states, 6171 states have (on average 1.3357640576891914) internal successors, (8243), 6280 states have internal predecessors, (8243), 2360 states have call successors, (2360), 322 states have call predecessors, (2360), 319 states have return successors, (2365), 2341 states have call predecessors, (2365), 2360 states have call successors, (2365) [2021-12-07 00:57:04,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8852 states to 8852 states and 12968 transitions. [2021-12-07 00:57:04,596 INFO L78 Accepts]: Start accepts. Automaton has 8852 states and 12968 transitions. Word has length 389 [2021-12-07 00:57:04,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:57:04,597 INFO L470 AbstractCegarLoop]: Abstraction has 8852 states and 12968 transitions. [2021-12-07 00:57:04,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 18.3) internal successors, (183), 5 states have internal predecessors, (183), 2 states have call successors, (54), 6 states have call predecessors, (54), 2 states have return successors, (48), 3 states have call predecessors, (48), 2 states have call successors, (48) [2021-12-07 00:57:04,597 INFO L276 IsEmpty]: Start isEmpty. Operand 8852 states and 12968 transitions. [2021-12-07 00:57:04,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2021-12-07 00:57:04,604 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:57:04,605 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:57:04,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-12-07 00:57:04,605 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 00:57:04,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:57:04,605 INFO L85 PathProgramCache]: Analyzing trace with hash 370216328, now seen corresponding path program 1 times [2021-12-07 00:57:04,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:57:04,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753594108] [2021-12-07 00:57:04,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:57:04,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:57:04,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:05,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-07 00:57:05,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:05,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-07 00:57:05,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:05,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-07 00:57:05,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:05,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:57:05,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:05,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:57:05,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:05,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:57:05,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:05,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-07 00:57:05,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:05,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:57:05,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:05,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:57:05,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:05,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:57:05,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:05,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-07 00:57:05,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:05,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:57:05,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:05,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:57:05,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:05,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:57:05,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:05,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-07 00:57:05,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:05,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 00:57:05,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:05,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-07 00:57:05,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:05,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-07 00:57:05,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:05,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:57:05,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:05,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-07 00:57:05,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:05,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-07 00:57:05,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:05,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-07 00:57:05,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:05,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-07 00:57:05,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:05,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-07 00:57:05,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:05,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-07 00:57:05,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:05,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-07 00:57:05,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:05,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-07 00:57:05,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:05,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-07 00:57:05,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:05,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-07 00:57:05,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:05,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-07 00:57:05,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:05,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:57:05,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:05,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-07 00:57:05,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:05,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-07 00:57:05,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:05,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-07 00:57:05,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:05,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-07 00:57:05,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:05,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-07 00:57:05,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:05,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-07 00:57:05,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:05,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-07 00:57:05,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:05,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-07 00:57:05,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:05,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-07 00:57:05,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:05,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-07 00:57:05,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:05,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-07 00:57:05,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:05,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-07 00:57:05,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:05,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-12-07 00:57:05,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:05,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-12-07 00:57:05,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:05,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-12-07 00:57:05,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:05,374 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2021-12-07 00:57:05,375 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:57:05,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753594108] [2021-12-07 00:57:05,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753594108] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:57:05,375 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:57:05,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 00:57:05,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490869370] [2021-12-07 00:57:05,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:57:05,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:57:05,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:57:05,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:57:05,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:57:05,376 INFO L87 Difference]: Start difference. First operand 8852 states and 12968 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (44), 4 states have call predecessors, (44), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-12-07 00:57:23,555 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:57:34,848 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:57:37,002 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:57:39,235 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:57:41,421 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:57:42,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:57:42,140 INFO L93 Difference]: Finished difference Result 18541 states and 27357 transitions. [2021-12-07 00:57:42,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 00:57:42,141 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (44), 4 states have call predecessors, (44), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 312 [2021-12-07 00:57:42,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:57:42,181 INFO L225 Difference]: With dead ends: 18541 [2021-12-07 00:57:42,181 INFO L226 Difference]: Without dead ends: 9706 [2021-12-07 00:57:42,213 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:57:42,214 INFO L933 BasicCegarLoop]: 11105 mSDtfsCounter, 3395 mSDsluCounter, 16266 mSDsCounter, 0 mSdLazyCounter, 5688 mSolverCounterSat, 5081 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3899 SdHoareTripleChecker+Valid, 27371 SdHoareTripleChecker+Invalid, 10774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5081 IncrementalHoareTripleChecker+Valid, 5688 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.6s IncrementalHoareTripleChecker+Time [2021-12-07 00:57:42,214 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3899 Valid, 27371 Invalid, 10774 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5081 Valid, 5688 Invalid, 5 Unknown, 0 Unchecked, 35.6s Time] [2021-12-07 00:57:42,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9706 states. [2021-12-07 00:57:42,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9706 to 8853. [2021-12-07 00:57:42,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8853 states, 6172 states have (on average 1.3357096565132858) internal successors, (8244), 6281 states have internal predecessors, (8244), 2360 states have call successors, (2360), 322 states have call predecessors, (2360), 319 states have return successors, (2365), 2341 states have call predecessors, (2365), 2360 states have call successors, (2365) [2021-12-07 00:57:42,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8853 states to 8853 states and 12969 transitions. [2021-12-07 00:57:42,924 INFO L78 Accepts]: Start accepts. Automaton has 8853 states and 12969 transitions. Word has length 312 [2021-12-07 00:57:42,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:57:42,924 INFO L470 AbstractCegarLoop]: Abstraction has 8853 states and 12969 transitions. [2021-12-07 00:57:42,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (44), 4 states have call predecessors, (44), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-12-07 00:57:42,924 INFO L276 IsEmpty]: Start isEmpty. Operand 8853 states and 12969 transitions. [2021-12-07 00:57:42,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2021-12-07 00:57:42,931 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:57:42,932 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:57:42,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-12-07 00:57:42,932 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 00:57:42,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:57:42,932 INFO L85 PathProgramCache]: Analyzing trace with hash 610456074, now seen corresponding path program 1 times [2021-12-07 00:57:42,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:57:42,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93404796] [2021-12-07 00:57:42,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:57:42,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:57:43,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:43,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-07 00:57:43,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:43,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-07 00:57:43,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:43,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-07 00:57:43,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:43,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:57:43,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:43,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:57:43,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:43,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:57:43,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:43,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-07 00:57:43,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:43,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:57:43,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:43,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:57:43,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:43,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:57:43,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:43,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-07 00:57:43,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:43,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:57:43,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:43,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:57:43,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:43,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:57:43,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:43,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-07 00:57:43,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:43,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 00:57:43,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:43,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-07 00:57:43,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:43,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-07 00:57:43,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:43,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:57:43,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:43,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-07 00:57:43,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:43,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-07 00:57:43,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:43,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-07 00:57:43,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:43,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-07 00:57:43,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:43,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-07 00:57:43,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:43,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-07 00:57:43,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:43,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-07 00:57:43,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:43,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-07 00:57:43,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:43,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-07 00:57:43,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:43,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-07 00:57:43,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:43,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-07 00:57:43,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:43,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:57:43,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:43,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-07 00:57:43,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:43,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-07 00:57:43,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:43,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-07 00:57:43,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:43,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-07 00:57:43,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:43,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-07 00:57:43,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:43,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-07 00:57:43,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:43,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-07 00:57:43,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:43,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-07 00:57:43,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:43,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-07 00:57:43,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:43,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-07 00:57:43,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:43,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-07 00:57:43,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:43,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-07 00:57:43,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:43,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-12-07 00:57:43,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:43,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-12-07 00:57:43,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:43,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-12-07 00:57:43,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:57:43,822 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2021-12-07 00:57:43,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:57:43,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93404796] [2021-12-07 00:57:43,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93404796] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:57:43,822 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:57:43,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 00:57:43,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076789511] [2021-12-07 00:57:43,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:57:43,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 00:57:43,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:57:43,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 00:57:43,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-07 00:57:43,824 INFO L87 Difference]: Start difference. First operand 8853 states and 12969 transitions. Second operand has 6 states, 6 states have (on average 24.0) internal successors, (144), 4 states have internal predecessors, (144), 2 states have call successors, (44), 4 states have call predecessors, (44), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-12-07 00:58:03,669 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:58:16,705 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:58:18,990 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:58:19,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:58:19,653 INFO L93 Difference]: Finished difference Result 18574 states and 27406 transitions. [2021-12-07 00:58:19,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 00:58:19,654 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.0) internal successors, (144), 4 states have internal predecessors, (144), 2 states have call successors, (44), 4 states have call predecessors, (44), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 312 [2021-12-07 00:58:19,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:58:19,693 INFO L225 Difference]: With dead ends: 18574 [2021-12-07 00:58:19,693 INFO L226 Difference]: Without dead ends: 9738 [2021-12-07 00:58:19,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:58:19,728 INFO L933 BasicCegarLoop]: 11166 mSDtfsCounter, 3448 mSDsluCounter, 26432 mSDsCounter, 0 mSdLazyCounter, 7700 mSolverCounterSat, 5083 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3952 SdHoareTripleChecker+Valid, 37598 SdHoareTripleChecker+Invalid, 12786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5083 IncrementalHoareTripleChecker+Valid, 7700 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.5s IncrementalHoareTripleChecker+Time [2021-12-07 00:58:19,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3952 Valid, 37598 Invalid, 12786 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5083 Valid, 7700 Invalid, 3 Unknown, 0 Unchecked, 34.5s Time] [2021-12-07 00:58:19,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9738 states. [2021-12-07 00:58:20,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9738 to 8853. [2021-12-07 00:58:20,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8853 states, 6172 states have (on average 1.335547634478289) internal successors, (8243), 6281 states have internal predecessors, (8243), 2360 states have call successors, (2360), 322 states have call predecessors, (2360), 319 states have return successors, (2365), 2341 states have call predecessors, (2365), 2360 states have call successors, (2365) [2021-12-07 00:58:20,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8853 states to 8853 states and 12968 transitions. [2021-12-07 00:58:20,448 INFO L78 Accepts]: Start accepts. Automaton has 8853 states and 12968 transitions. Word has length 312 [2021-12-07 00:58:20,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:58:20,448 INFO L470 AbstractCegarLoop]: Abstraction has 8853 states and 12968 transitions. [2021-12-07 00:58:20,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.0) internal successors, (144), 4 states have internal predecessors, (144), 2 states have call successors, (44), 4 states have call predecessors, (44), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-12-07 00:58:20,448 INFO L276 IsEmpty]: Start isEmpty. Operand 8853 states and 12968 transitions. [2021-12-07 00:58:20,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2021-12-07 00:58:20,456 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:58:20,456 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:58:20,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-12-07 00:58:20,456 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 00:58:20,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:58:20,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1301671878, now seen corresponding path program 1 times [2021-12-07 00:58:20,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:58:20,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056851142] [2021-12-07 00:58:20,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:58:20,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:58:20,748 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-07 00:58:20,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1963367552] [2021-12-07 00:58:20,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:58:20,748 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:58:20,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f11439-dae3-4249-af99-0727fe871e7f/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:58:20,749 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f11439-dae3-4249-af99-0727fe871e7f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:58:20,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f11439-dae3-4249-af99-0727fe871e7f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-07 00:58:23,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:23,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 16710 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-07 00:58:23,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:58:23,473 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2021-12-07 00:58:23,473 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:58:23,473 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:58:23,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056851142] [2021-12-07 00:58:23,473 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-07 00:58:23,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1963367552] [2021-12-07 00:58:23,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1963367552] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:58:23,473 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:58:23,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 00:58:23,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789841152] [2021-12-07 00:58:23,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:58:23,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 00:58:23,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:58:23,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 00:58:23,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 00:58:23,475 INFO L87 Difference]: Start difference. First operand 8853 states and 12968 transitions. Second operand has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-12-07 00:58:24,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:58:24,420 INFO L93 Difference]: Finished difference Result 18213 states and 26708 transitions. [2021-12-07 00:58:24,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 00:58:24,421 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 306 [2021-12-07 00:58:24,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:58:24,457 INFO L225 Difference]: With dead ends: 18213 [2021-12-07 00:58:24,457 INFO L226 Difference]: Without dead ends: 9377 [2021-12-07 00:58:24,488 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:58:24,489 INFO L933 BasicCegarLoop]: 12371 mSDtfsCounter, 550 mSDsluCounter, 24048 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 639 SdHoareTripleChecker+Valid, 36419 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-07 00:58:24,489 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [639 Valid, 36419 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-07 00:58:24,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9377 states. [2021-12-07 00:58:25,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9377 to 8853. [2021-12-07 00:58:25,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8853 states, 6172 states have (on average 1.3353856124432923) internal successors, (8242), 6281 states have internal predecessors, (8242), 2360 states have call successors, (2360), 322 states have call predecessors, (2360), 319 states have return successors, (2365), 2341 states have call predecessors, (2365), 2360 states have call successors, (2365) [2021-12-07 00:58:25,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8853 states to 8853 states and 12967 transitions. [2021-12-07 00:58:25,203 INFO L78 Accepts]: Start accepts. Automaton has 8853 states and 12967 transitions. Word has length 306 [2021-12-07 00:58:25,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:58:25,203 INFO L470 AbstractCegarLoop]: Abstraction has 8853 states and 12967 transitions. [2021-12-07 00:58:25,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-12-07 00:58:25,203 INFO L276 IsEmpty]: Start isEmpty. Operand 8853 states and 12967 transitions. [2021-12-07 00:58:25,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2021-12-07 00:58:25,211 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:58:25,212 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:58:25,258 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f11439-dae3-4249-af99-0727fe871e7f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-07 00:58:25,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f11439-dae3-4249-af99-0727fe871e7f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2021-12-07 00:58:25,414 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 00:58:25,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:58:25,415 INFO L85 PathProgramCache]: Analyzing trace with hash -789061012, now seen corresponding path program 1 times [2021-12-07 00:58:25,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:58:25,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408925961] [2021-12-07 00:58:25,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:58:25,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:58:25,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:25,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-07 00:58:25,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:25,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-07 00:58:25,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:25,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-07 00:58:25,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:58:26,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:58:26,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:58:26,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-07 00:58:26,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:58:26,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:58:26,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:58:26,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-07 00:58:26,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:58:26,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:58:26,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:58:26,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-07 00:58:26,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 00:58:26,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-07 00:58:26,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-07 00:58:26,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:58:26,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-07 00:58:26,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-07 00:58:26,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-07 00:58:26,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-07 00:58:26,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-07 00:58:26,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-07 00:58:26,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-07 00:58:26,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:58:26,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-07 00:58:26,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-12-07 00:58:26,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-07 00:58:26,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-07 00:58:26,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-07 00:58:26,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-07 00:58:26,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-07 00:58:26,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-07 00:58:26,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-07 00:58:26,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-07 00:58:26,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-07 00:58:26,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-12-07 00:58:26,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-12-07 00:58:26,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-12-07 00:58:26,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:58:26,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:58:26,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-12-07 00:58:26,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:58:26,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 00:58:26,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-07 00:58:26,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-07 00:58:26,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-07 00:58:26,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2021-12-07 00:58:26,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2021-12-07 00:58:26,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2021-12-07 00:58:26,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:58:26,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-07 00:58:26,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-07 00:58:26,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-07 00:58:26,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-07 00:58:26,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-07 00:58:26,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-07 00:58:26,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-07 00:58:26,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-07 00:58:26,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-07 00:58:26,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-07 00:58:26,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-07 00:58:26,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-07 00:58:26,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-07 00:58:26,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-07 00:58:26,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2021-12-07 00:58:26,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2021-12-07 00:58:26,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2021-12-07 00:58:26,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:58:26,349 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2021-12-07 00:58:26,349 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:58:26,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408925961] [2021-12-07 00:58:26,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408925961] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:58:26,350 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:58:26,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 00:58:26,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267194049] [2021-12-07 00:58:26,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:58:26,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:58:26,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:58:26,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:58:26,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:58:26,351 INFO L87 Difference]: Start difference. First operand 8853 states and 12967 transitions. Second operand has 5 states, 5 states have (on average 41.0) internal successors, (205), 3 states have internal predecessors, (205), 2 states have call successors, (70), 4 states have call predecessors, (70), 2 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2021-12-07 00:58:53,879 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:58:55,986 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:58:58,057 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:59:00,132 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:59:02,202 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:59:03,956 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:59:06,014 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:59:08,660 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:59:11,278 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:59:13,366 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:59:34,580 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:59:37,622 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:59:39,824 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:59:42,295 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:59:44,591 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:59:45,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:59:45,624 INFO L93 Difference]: Finished difference Result 18543 states and 27355 transitions. [2021-12-07 00:59:45,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 00:59:45,625 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.0) internal successors, (205), 3 states have internal predecessors, (205), 2 states have call successors, (70), 4 states have call predecessors, (70), 2 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) Word has length 454 [2021-12-07 00:59:45,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:59:45,661 INFO L225 Difference]: With dead ends: 18543 [2021-12-07 00:59:45,661 INFO L226 Difference]: Without dead ends: 9707 [2021-12-07 00:59:45,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:59:45,692 INFO L933 BasicCegarLoop]: 11086 mSDtfsCounter, 2022 mSDsluCounter, 19828 mSDsCounter, 0 mSdLazyCounter, 9841 mSolverCounterSat, 2432 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 70.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2526 SdHoareTripleChecker+Valid, 30914 SdHoareTripleChecker+Invalid, 12287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2432 IncrementalHoareTripleChecker+Valid, 9841 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 77.9s IncrementalHoareTripleChecker+Time [2021-12-07 00:59:45,693 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2526 Valid, 30914 Invalid, 12287 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2432 Valid, 9841 Invalid, 14 Unknown, 0 Unchecked, 77.9s Time] [2021-12-07 00:59:45,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9707 states. [2021-12-07 00:59:46,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9707 to 8854. [2021-12-07 00:59:46,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8854 states, 6173 states have (on average 1.335331281386684) internal successors, (8243), 6282 states have internal predecessors, (8243), 2360 states have call successors, (2360), 322 states have call predecessors, (2360), 319 states have return successors, (2365), 2341 states have call predecessors, (2365), 2360 states have call successors, (2365) [2021-12-07 00:59:46,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8854 states to 8854 states and 12968 transitions. [2021-12-07 00:59:46,414 INFO L78 Accepts]: Start accepts. Automaton has 8854 states and 12968 transitions. Word has length 454 [2021-12-07 00:59:46,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:59:46,415 INFO L470 AbstractCegarLoop]: Abstraction has 8854 states and 12968 transitions. [2021-12-07 00:59:46,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.0) internal successors, (205), 3 states have internal predecessors, (205), 2 states have call successors, (70), 4 states have call predecessors, (70), 2 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2021-12-07 00:59:46,415 INFO L276 IsEmpty]: Start isEmpty. Operand 8854 states and 12968 transitions. [2021-12-07 00:59:46,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2021-12-07 00:59:46,424 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:59:46,424 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 6, 6, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:59:46,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-12-07 00:59:46,424 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 00:59:46,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:59:46,424 INFO L85 PathProgramCache]: Analyzing trace with hash 201992275, now seen corresponding path program 1 times [2021-12-07 00:59:46,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:59:46,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467058769] [2021-12-07 00:59:46,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:59:46,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:59:46,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:46,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-07 00:59:46,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:46,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-07 00:59:46,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:47,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-07 00:59:47,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:47,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:59:47,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:47,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:59:47,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:47,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:59:47,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:47,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-07 00:59:47,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:47,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:59:47,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:47,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:59:47,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:47,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:59:47,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:47,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-07 00:59:47,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:47,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:59:47,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:47,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:59:47,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:47,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:59:47,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:47,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-07 00:59:47,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:47,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 00:59:47,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:47,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-07 00:59:47,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:47,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-07 00:59:47,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:47,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:59:47,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:47,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-07 00:59:47,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:47,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-07 00:59:47,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:47,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-07 00:59:47,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:47,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-07 00:59:47,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:47,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-07 00:59:47,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:47,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-07 00:59:47,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:47,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-07 00:59:47,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:47,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-07 00:59:47,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:47,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-07 00:59:47,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:47,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-07 00:59:47,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:47,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-07 00:59:47,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:47,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:59:47,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:47,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-07 00:59:47,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:47,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-07 00:59:47,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:47,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-07 00:59:47,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:47,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-07 00:59:47,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:47,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-07 00:59:47,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:47,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-07 00:59:47,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:47,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-07 00:59:47,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:47,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-07 00:59:47,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:47,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-07 00:59:47,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:47,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-07 00:59:47,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:47,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-07 00:59:47,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:47,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-07 00:59:47,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:47,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-07 00:59:47,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:47,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-07 00:59:47,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:47,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-12-07 00:59:47,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:47,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-12-07 00:59:47,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:47,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-12-07 00:59:47,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:59:47,311 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2021-12-07 00:59:47,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:59:47,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467058769] [2021-12-07 00:59:47,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467058769] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:59:47,312 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:59:47,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 00:59:47,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065345609] [2021-12-07 00:59:47,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:59:47,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 00:59:47,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:59:47,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 00:59:47,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:59:47,313 INFO L87 Difference]: Start difference. First operand 8854 states and 12968 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 4 states have internal predecessors, (148), 2 states have call successors, (46), 5 states have call predecessors, (46), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-12-07 01:00:22,707 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:00:24,822 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:00:26,902 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:00:28,982 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:00:31,054 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:00:33,044 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:00:35,109 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:00:37,177 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:00:39,284 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:00:41,302 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:00:43,337 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:00:45,430 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:01:07,685 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:01:10,923 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:01:13,131 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:01:15,648 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:01:17,986 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:01:19,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:01:19,176 INFO L93 Difference]: Finished difference Result 9719 states and 14374 transitions. [2021-12-07 01:01:19,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-07 01:01:19,177 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 4 states have internal predecessors, (148), 2 states have call successors, (46), 5 states have call predecessors, (46), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 324 [2021-12-07 01:01:19,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:01:19,219 INFO L225 Difference]: With dead ends: 9719 [2021-12-07 01:01:19,219 INFO L226 Difference]: Without dead ends: 9717 [2021-12-07 01:01:19,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2021-12-07 01:01:19,225 INFO L933 BasicCegarLoop]: 11498 mSDtfsCounter, 12227 mSDsluCounter, 31488 mSDsCounter, 0 mSdLazyCounter, 12636 mSolverCounterSat, 4192 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 81.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13603 SdHoareTripleChecker+Valid, 42986 SdHoareTripleChecker+Invalid, 16844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4192 IncrementalHoareTripleChecker+Valid, 12636 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 90.3s IncrementalHoareTripleChecker+Time [2021-12-07 01:01:19,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13603 Valid, 42986 Invalid, 16844 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4192 Valid, 12636 Invalid, 16 Unknown, 0 Unchecked, 90.3s Time] [2021-12-07 01:01:19,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9717 states. [2021-12-07 01:01:19,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9717 to 8858. [2021-12-07 01:01:19,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8858 states, 6176 states have (on average 1.3351683937823835) internal successors, (8246), 6285 states have internal predecessors, (8246), 2360 states have call successors, (2360), 323 states have call predecessors, (2360), 320 states have return successors, (2365), 2341 states have call predecessors, (2365), 2360 states have call successors, (2365) [2021-12-07 01:01:19,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8858 states to 8858 states and 12971 transitions. [2021-12-07 01:01:19,942 INFO L78 Accepts]: Start accepts. Automaton has 8858 states and 12971 transitions. Word has length 324 [2021-12-07 01:01:19,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:01:19,943 INFO L470 AbstractCegarLoop]: Abstraction has 8858 states and 12971 transitions. [2021-12-07 01:01:19,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 4 states have internal predecessors, (148), 2 states have call successors, (46), 5 states have call predecessors, (46), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-12-07 01:01:19,943 INFO L276 IsEmpty]: Start isEmpty. Operand 8858 states and 12971 transitions. [2021-12-07 01:01:19,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2021-12-07 01:01:19,952 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:01:19,952 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:01:19,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-12-07 01:01:19,953 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 01:01:19,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:01:19,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1645074789, now seen corresponding path program 1 times [2021-12-07 01:01:19,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:01:19,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012994041] [2021-12-07 01:01:19,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:01:19,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:01:20,246 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-07 01:01:20,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [905769407] [2021-12-07 01:01:20,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:01:20,246 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:01:20,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f11439-dae3-4249-af99-0727fe871e7f/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:01:20,247 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f11439-dae3-4249-af99-0727fe871e7f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:01:20,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f11439-dae3-4249-af99-0727fe871e7f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-07 01:01:22,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:22,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 17083 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-07 01:01:22,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:01:23,060 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2021-12-07 01:01:23,060 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 01:01:23,060 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:01:23,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012994041] [2021-12-07 01:01:23,061 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-07 01:01:23,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [905769407] [2021-12-07 01:01:23,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [905769407] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:01:23,061 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:01:23,061 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 01:01:23,061 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644269870] [2021-12-07 01:01:23,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:01:23,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 01:01:23,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:01:23,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 01:01:23,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 01:01:23,063 INFO L87 Difference]: Start difference. First operand 8858 states and 12971 transitions. Second operand has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-12-07 01:01:23,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:01:23,801 INFO L93 Difference]: Finished difference Result 18024 states and 26420 transitions. [2021-12-07 01:01:23,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 01:01:23,802 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 367 [2021-12-07 01:01:23,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:01:23,835 INFO L225 Difference]: With dead ends: 18024 [2021-12-07 01:01:23,835 INFO L226 Difference]: Without dead ends: 9183 [2021-12-07 01:01:23,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:01:23,866 INFO L933 BasicCegarLoop]: 12194 mSDtfsCounter, 745 mSDsluCounter, 23537 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 745 SdHoareTripleChecker+Valid, 35731 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-07 01:01:23,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [745 Valid, 35731 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-07 01:01:23,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9183 states. [2021-12-07 01:01:24,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9183 to 8858. [2021-12-07 01:01:24,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8858 states, 6177 states have (on average 1.335114133074308) internal successors, (8247), 6286 states have internal predecessors, (8247), 2359 states have call successors, (2359), 323 states have call predecessors, (2359), 320 states have return successors, (2364), 2340 states have call predecessors, (2364), 2359 states have call successors, (2364) [2021-12-07 01:01:24,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8858 states to 8858 states and 12970 transitions. [2021-12-07 01:01:24,587 INFO L78 Accepts]: Start accepts. Automaton has 8858 states and 12970 transitions. Word has length 367 [2021-12-07 01:01:24,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:01:24,587 INFO L470 AbstractCegarLoop]: Abstraction has 8858 states and 12970 transitions. [2021-12-07 01:01:24,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-12-07 01:01:24,587 INFO L276 IsEmpty]: Start isEmpty. Operand 8858 states and 12970 transitions. [2021-12-07 01:01:24,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2021-12-07 01:01:24,593 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:01:24,594 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 7, 7, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:01:24,642 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f11439-dae3-4249-af99-0727fe871e7f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-07 01:01:24,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f11439-dae3-4249-af99-0727fe871e7f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2021-12-07 01:01:24,796 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 01:01:24,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:01:24,797 INFO L85 PathProgramCache]: Analyzing trace with hash -33776859, now seen corresponding path program 1 times [2021-12-07 01:01:24,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:01:24,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226604159] [2021-12-07 01:01:24,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:01:24,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:01:25,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-07 01:01:25,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-07 01:01:25,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-07 01:01:25,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:01:25,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:01:25,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 01:01:25,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-07 01:01:25,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:01:25,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:01:25,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 01:01:25,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-07 01:01:25,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:01:25,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:01:25,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 01:01:25,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-07 01:01:25,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 01:01:25,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-07 01:01:25,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-07 01:01:25,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:01:25,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-07 01:01:25,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-07 01:01:25,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-07 01:01:25,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-07 01:01:25,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-07 01:01:25,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-07 01:01:25,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-07 01:01:25,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-07 01:01:25,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-07 01:01:25,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-07 01:01:25,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-07 01:01:25,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:01:25,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-07 01:01:25,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-07 01:01:25,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-07 01:01:25,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-07 01:01:25,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-07 01:01:25,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-07 01:01:25,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-07 01:01:25,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-07 01:01:25,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-07 01:01:25,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-07 01:01:25,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-07 01:01:25,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-07 01:01:25,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-07 01:01:25,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-07 01:01:25,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-12-07 01:01:25,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-12-07 01:01:25,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-12-07 01:01:25,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2021-12-07 01:01:25,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:01:25,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:01:25,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-07 01:01:25,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2021-12-07 01:01:25,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:01:25,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-07 01:01:25,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:25,790 INFO L134 CoverageAnalysis]: Checked inductivity of 356 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 356 trivial. 0 not checked. [2021-12-07 01:01:25,790 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:01:25,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226604159] [2021-12-07 01:01:25,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226604159] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:01:25,791 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:01:25,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-07 01:01:25,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55603925] [2021-12-07 01:01:25,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:01:25,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 01:01:25,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:01:25,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 01:01:25,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-12-07 01:01:25,792 INFO L87 Difference]: Start difference. First operand 8858 states and 12970 transitions. Second operand has 9 states, 9 states have (on average 18.77777777777778) internal successors, (169), 5 states have internal predecessors, (169), 3 states have call successors, (53), 7 states have call predecessors, (53), 3 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49)