./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62560eb1-7e79-4262-88e9-702f17627f76/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62560eb1-7e79-4262-88e9-702f17627f76/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62560eb1-7e79-4262-88e9-702f17627f76/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62560eb1-7e79-4262-88e9-702f17627f76/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62560eb1-7e79-4262-88e9-702f17627f76/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62560eb1-7e79-4262-88e9-702f17627f76/bin/uautomizer-YU5uOKAj3y --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 45704baa505532991d887c6baed8540301aeab31c519983c43b4db9d2f3e9308 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:10:39,651 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:10:39,655 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:10:39,694 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:10:39,695 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:10:39,697 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:10:39,700 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:10:39,703 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:10:39,706 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:10:39,708 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:10:39,710 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:10:39,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:10:39,713 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:10:39,715 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:10:39,717 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:10:39,720 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:10:39,721 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:10:39,723 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:10:39,726 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:10:39,730 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:10:39,733 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:10:39,735 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:10:39,737 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:10:39,739 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:10:39,744 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:10:39,745 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:10:39,745 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:10:39,747 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:10:39,748 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:10:39,750 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:10:39,750 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:10:39,752 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:10:39,754 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:10:39,755 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:10:39,757 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:10:39,758 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:10:39,759 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:10:39,759 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:10:39,760 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:10:39,761 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:10:39,762 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:10:39,763 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62560eb1-7e79-4262-88e9-702f17627f76/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-13 18:10:39,808 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:10:39,809 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:10:39,809 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:10:39,810 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:10:39,812 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:10:39,812 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:10:39,813 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:10:39,813 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:10:39,814 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:10:39,814 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:10:39,816 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:10:39,817 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:10:39,817 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 18:10:39,818 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:10:39,818 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 18:10:39,818 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:10:39,818 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:10:39,819 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 18:10:39,819 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:10:39,819 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:10:39,820 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:10:39,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:10:39,820 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:10:39,821 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:10:39,821 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 18:10:39,821 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:10:39,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 18:10:39,822 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 18:10:39,822 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 18:10:39,824 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 18:10:39,824 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:10:39,825 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_62560eb1-7e79-4262-88e9-702f17627f76/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62560eb1-7e79-4262-88e9-702f17627f76/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45704baa505532991d887c6baed8540301aeab31c519983c43b4db9d2f3e9308 [2021-11-13 18:10:40,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:10:40,217 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:10:40,222 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:10:40,223 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:10:40,224 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:10:40,226 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62560eb1-7e79-4262-88e9-702f17627f76/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i [2021-11-13 18:10:40,358 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62560eb1-7e79-4262-88e9-702f17627f76/bin/uautomizer-YU5uOKAj3y/data/b8f153ad8/474e2adf24014ec39349ee8e7c6b82fb/FLAG28dbf12d8 [2021-11-13 18:10:42,281 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:10:42,282 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62560eb1-7e79-4262-88e9-702f17627f76/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i [2021-11-13 18:10:42,406 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62560eb1-7e79-4262-88e9-702f17627f76/bin/uautomizer-YU5uOKAj3y/data/b8f153ad8/474e2adf24014ec39349ee8e7c6b82fb/FLAG28dbf12d8 [2021-11-13 18:10:42,917 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62560eb1-7e79-4262-88e9-702f17627f76/bin/uautomizer-YU5uOKAj3y/data/b8f153ad8/474e2adf24014ec39349ee8e7c6b82fb [2021-11-13 18:10:42,922 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:10:42,926 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:10:42,928 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:10:42,928 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:10:42,933 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:10:42,934 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:10:42" (1/1) ... [2021-11-13 18:10:42,936 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eab496e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:10:42, skipping insertion in model container [2021-11-13 18:10:42,936 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:10:42" (1/1) ... [2021-11-13 18:10:42,946 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:10:43,308 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:10:54,611 WARN L228 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_62560eb1-7e79-4262-88e9-702f17627f76/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[910514,910527] [2021-11-13 18:10:54,615 WARN L228 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_62560eb1-7e79-4262-88e9-702f17627f76/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[910683,910696] [2021-11-13 18:10:54,617 WARN L228 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_62560eb1-7e79-4262-88e9-702f17627f76/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[910850,910863] [2021-11-13 18:10:54,617 WARN L228 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_62560eb1-7e79-4262-88e9-702f17627f76/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[911018,911031] [2021-11-13 18:10:54,734 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:10:54,910 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:10:56,171 WARN L228 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_62560eb1-7e79-4262-88e9-702f17627f76/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[910514,910527] [2021-11-13 18:10:56,172 WARN L228 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_62560eb1-7e79-4262-88e9-702f17627f76/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[910683,910696] [2021-11-13 18:10:56,173 WARN L228 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_62560eb1-7e79-4262-88e9-702f17627f76/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[910850,910863] [2021-11-13 18:10:56,173 WARN L228 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_62560eb1-7e79-4262-88e9-702f17627f76/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[911018,911031] [2021-11-13 18:10:56,184 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:10:56,602 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:10:56,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:10:56 WrapperNode [2021-11-13 18:10:56,603 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:10:56,604 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:10:56,604 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:10:56,604 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:10:56,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:10:56" (1/1) ... [2021-11-13 18:10:57,018 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:10:56" (1/1) ... [2021-11-13 18:10:58,361 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:10:58,362 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:10:58,363 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:10:58,363 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:10:58,377 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:10:56" (1/1) ... [2021-11-13 18:10:58,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:10:56" (1/1) ... [2021-11-13 18:10:58,953 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:10:56" (1/1) ... [2021-11-13 18:10:58,955 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:10:56" (1/1) ... [2021-11-13 18:10:59,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:10:56" (1/1) ... [2021-11-13 18:11:00,213 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:10:56" (1/1) ... [2021-11-13 18:11:00,427 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:10:56" (1/1) ... [2021-11-13 18:11:00,592 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:11:00,593 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:11:00,594 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:11:00,594 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:11:00,595 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:10:56" (1/1) ... [2021-11-13 18:11:00,604 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:11:00,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62560eb1-7e79-4262-88e9-702f17627f76/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:11:00,635 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62560eb1-7e79-4262-88e9-702f17627f76/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 18:11:00,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62560eb1-7e79-4262-88e9-702f17627f76/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 18:11:00,689 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_set_check_bssid [2021-11-13 18:11:00,690 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_set_check_bssid [2021-11-13 18:11:00,690 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_query_rf_reg [2021-11-13 18:11:00,690 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_query_rf_reg [2021-11-13 18:11:00,690 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_sw_led_on [2021-11-13 18:11:00,691 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_sw_led_on [2021-11-13 18:11:00,691 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-11-13 18:11:00,691 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-11-13 18:11:00,691 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-13 18:11:00,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-13 18:11:00,692 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_lc_calibrate [2021-11-13 18:11:00,692 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_lc_calibrate [2021-11-13 18:11:00,692 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl8188e_config_bb_reg [2021-11-13 18:11:00,692 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl8188e_config_bb_reg [2021-11-13 18:11:00,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_4 [2021-11-13 18:11:00,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_4 [2021-11-13 18:11:00,693 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_word [2021-11-13 18:11:00,693 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_word [2021-11-13 18:11:00,693 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_fwlps_enter [2021-11-13 18:11:00,693 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_fwlps_enter [2021-11-13 18:11:00,694 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_phy_path_adda_on [2021-11-13 18:11:00,694 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_phy_path_adda_on [2021-11-13 18:11:00,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-13 18:11:00,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-13 18:11:00,694 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_signal_scale_mapping [2021-11-13 18:11:00,695 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_signal_scale_mapping [2021-11-13 18:11:00,695 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_byte [2021-11-13 18:11:00,695 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_byte [2021-11-13 18:11:00,695 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-13 18:11:00,695 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-13 18:11:00,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_65 [2021-11-13 18:11:00,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_65 [2021-11-13 18:11:00,696 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-13 18:11:00,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-13 18:11:00,696 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_query_bb_reg [2021-11-13 18:11:00,697 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_query_bb_reg [2021-11-13 18:11:00,697 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_suspend [2021-11-13 18:11:00,697 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_suspend [2021-11-13 18:11:00,697 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_enable_interrupt [2021-11-13 18:11:00,697 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_enable_interrupt [2021-11-13 18:11:00,698 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_sw_led_off [2021-11-13 18:11:00,698 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_sw_led_off [2021-11-13 18:11:00,698 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-13 18:11:00,698 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_dword [2021-11-13 18:11:00,698 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_dword [2021-11-13 18:11:00,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-13 18:11:00,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-13 18:11:00,699 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_config_rf_with_headerfile [2021-11-13 18:11:00,699 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_config_rf_with_headerfile [2021-11-13 18:11:00,699 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_firmware_selfreset [2021-11-13 18:11:00,700 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_firmware_selfreset [2021-11-13 18:11:00,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-13 18:11:00,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-13 18:11:00,700 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-13 18:11:00,701 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-13 18:11:00,701 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_get_desc [2021-11-13 18:11:00,701 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_get_desc [2021-11-13 18:11:00,701 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_set_beacon_interval [2021-11-13 18:11:00,701 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_set_beacon_interval [2021-11-13 18:11:00,702 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_disable_interrupt [2021-11-13 18:11:00,702 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_disable_interrupt [2021-11-13 18:11:00,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 18:11:00,702 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_resume [2021-11-13 18:11:00,702 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_resume [2021-11-13 18:11:00,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_rf_lock_of_rtl_locks [2021-11-13 18:11:00,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_rf_lock_of_rtl_locks [2021-11-13 18:11:00,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-13 18:11:00,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-13 18:11:00,703 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_update_channel_access_setting [2021-11-13 18:11:00,704 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_update_channel_access_setting [2021-11-13 18:11:00,704 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_update_rx_idle_ant [2021-11-13 18:11:00,704 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_update_rx_idle_ant [2021-11-13 18:11:00,704 INFO L130 BoogieDeclarations]: Found specification of procedure get_rf_type [2021-11-13 18:11:00,704 INFO L138 BoogieDeclarations]: Found implementation of procedure get_rf_type [2021-11-13 18:11:00,705 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-11-13 18:11:00,705 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-11-13 18:11:00,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-13 18:11:00,705 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_has_protected [2021-11-13 18:11:00,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_has_protected [2021-11-13 18:11:00,706 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-13 18:11:00,706 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-13 18:11:00,706 INFO L130 BoogieDeclarations]: Found specification of procedure is_hal_stop [2021-11-13 18:11:00,706 INFO L138 BoogieDeclarations]: Found implementation of procedure is_hal_stop [2021-11-13 18:11:00,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-13 18:11:00,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-13 18:11:00,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-13 18:11:00,707 INFO L130 BoogieDeclarations]: Found specification of procedure rf_serial_read [2021-11-13 18:11:00,707 INFO L138 BoogieDeclarations]: Found implementation of procedure rf_serial_read [2021-11-13 18:11:00,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 18:11:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_update_interrupt_mask [2021-11-13 18:11:00,708 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_update_interrupt_mask [2021-11-13 18:11:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-13 18:11:00,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-13 18:11:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_fw_clk_off_timer_callback [2021-11-13 18:11:00,709 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_fw_clk_off_timer_callback [2021-11-13 18:11:00,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-13 18:11:00,709 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-13 18:11:00,709 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_rf_reg [2021-11-13 18:11:00,709 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_rf_reg [2021-11-13 18:11:00,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-13 18:11:00,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-13 18:11:00,710 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2021-11-13 18:11:00,710 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2021-11-13 18:11:00,710 INFO L130 BoogieDeclarations]: Found specification of procedure print_hex_dump [2021-11-13 18:11:00,711 INFO L138 BoogieDeclarations]: Found implementation of procedure print_hex_dump [2021-11-13 18:11:00,711 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_card_disable [2021-11-13 18:11:00,711 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_card_disable [2021-11-13 18:11:00,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_80 [2021-11-13 18:11:00,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_80 [2021-11-13 18:11:00,712 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_check_fw_read_last_h2c [2021-11-13 18:11:00,712 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_check_fw_read_last_h2c [2021-11-13 18:11:00,712 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_beacon [2021-11-13 18:11:00,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_beacon [2021-11-13 18:11:00,712 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u16~0 [2021-11-13 18:11:00,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u16~0 [2021-11-13 18:11:00,713 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_led_control [2021-11-13 18:11:00,713 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_led_control [2021-11-13 18:11:00,713 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_set_beacon_related_registers [2021-11-13 18:11:00,713 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_set_beacon_related_registers [2021-11-13 18:11:00,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_74 [2021-11-13 18:11:00,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_74 [2021-11-13 18:11:00,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_71 [2021-11-13 18:11:00,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_71 [2021-11-13 18:11:00,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_70 [2021-11-13 18:11:00,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_70 [2021-11-13 18:11:00,715 INFO L130 BoogieDeclarations]: Found specification of procedure save_adda_reg [2021-11-13 18:11:00,715 INFO L138 BoogieDeclarations]: Found implementation of procedure save_adda_reg [2021-11-13 18:11:00,716 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u8~0 [2021-11-13 18:11:00,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u8~0 [2021-11-13 18:11:00,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-13 18:11:00,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-13 18:11:00,716 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2021-11-13 18:11:00,717 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2021-11-13 18:11:00,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 18:11:00,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_4_2 [2021-11-13 18:11:00,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_4_2 [2021-11-13 18:11:00,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-13 18:11:00,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-13 18:11:00,718 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_set_hw_reg [2021-11-13 18:11:00,718 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_set_hw_reg [2021-11-13 18:11:00,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-13 18:11:00,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-13 18:11:00,718 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-13 18:11:00,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-13 18:11:00,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 18:11:00,719 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-13 18:11:00,719 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_rfpath_switch [2021-11-13 18:11:00,719 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_rfpath_switch [2021-11-13 18:11:00,720 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 18:11:00,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 18:11:00,720 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-13 18:11:00,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-13 18:11:00,720 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_update_hal_rate_tbl [2021-11-13 18:11:00,720 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_update_hal_rate_tbl [2021-11-13 18:11:00,721 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_txpower_level [2021-11-13 18:11:00,721 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_txpower_level [2021-11-13 18:11:00,721 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-13 18:11:00,721 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-13 18:11:00,721 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_bb_reg [2021-11-13 18:11:00,721 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_bb_reg [2021-11-13 18:11:00,722 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_set_qos [2021-11-13 18:11:00,722 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_set_qos [2021-11-13 18:11:00,722 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-13 18:11:00,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-13 18:11:00,722 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_iq_calibrate [2021-11-13 18:11:00,723 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_iq_calibrate [2021-11-13 18:11:00,723 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-11-13 18:11:00,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-11-13 18:11:00,723 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_cam_add_one_entry [2021-11-13 18:11:00,723 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_cam_add_one_entry [2021-11-13 18:11:00,724 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_check_txpower_tracking [2021-11-13 18:11:00,724 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_check_txpower_tracking [2021-11-13 18:11:00,724 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_init_led [2021-11-13 18:11:00,724 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_init_led [2021-11-13 18:11:00,724 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_txpower_track_adjust [2021-11-13 18:11:00,724 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_txpower_track_adjust [2021-11-13 18:11:00,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_65 [2021-11-13 18:11:00,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_65 [2021-11-13 18:11:00,725 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_poweroff_adapter [2021-11-13 18:11:00,725 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_poweroff_adapter [2021-11-13 18:11:00,725 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_init_edca_turbo [2021-11-13 18:11:00,726 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_init_edca_turbo [2021-11-13 18:11:00,726 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_set_bcn_ctrl_reg [2021-11-13 18:11:00,726 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_set_bcn_ctrl_reg [2021-11-13 18:11:00,726 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_init_sw_leds [2021-11-13 18:11:00,726 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_init_sw_leds [2021-11-13 18:11:00,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:11:00,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:11:00,727 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-11-13 18:11:00,727 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-11-13 18:11:00,727 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88_hal_pwrseqcmdparsing [2021-11-13 18:11:00,727 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88_hal_pwrseqcmdparsing [2021-11-13 18:11:00,728 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_enable_hw_security_config [2021-11-13 18:11:00,728 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_enable_hw_security_config [2021-11-13 18:11:00,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_h2c_lock_of_rtl_locks [2021-11-13 18:11:00,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_h2c_lock_of_rtl_locks [2021-11-13 18:11:00,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-13 18:11:00,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-13 18:11:00,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-13 18:11:00,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-13 18:11:00,729 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_DA [2021-11-13 18:11:00,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_DA [2021-11-13 18:11:00,730 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_set_rfreg [2021-11-13 18:11:00,730 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_set_rfreg [2021-11-13 18:11:00,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-13 18:11:00,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-13 18:11:00,730 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-13 18:11:00,730 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-13 18:11:00,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_6_2 [2021-11-13 18:11:00,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_6_2 [2021-11-13 18:11:00,731 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~VOID [2021-11-13 18:11:00,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~VOID [2021-11-13 18:11:00,731 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-11-13 18:11:00,732 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-11-13 18:11:00,732 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_set_iqk_matrix [2021-11-13 18:11:00,732 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_set_iqk_matrix [2021-11-13 18:11:00,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_65___0 [2021-11-13 18:11:00,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_65___0 [2021-11-13 18:11:00,732 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_chk_tx_track [2021-11-13 18:11:00,733 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_chk_tx_track [2021-11-13 18:11:00,733 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_fast_antenna_training_callback [2021-11-13 18:11:00,733 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_fast_antenna_training_callback [2021-11-13 18:11:00,733 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_data_qos [2021-11-13 18:11:00,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_data_qos [2021-11-13 18:11:00,734 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_stop_tx_beacon [2021-11-13 18:11:00,734 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_stop_tx_beacon [2021-11-13 18:11:00,734 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_byte [2021-11-13 18:11:00,734 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_byte [2021-11-13 18:11:00,734 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_word [2021-11-13 18:11:00,734 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_word [2021-11-13 18:11:00,735 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-13 18:11:00,735 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-13 18:11:00,735 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_llt_write [2021-11-13 18:11:00,735 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_llt_write [2021-11-13 18:11:00,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-13 18:11:00,736 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-13 18:11:00,736 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_pci_suspend [2021-11-13 18:11:00,736 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_pci_suspend [2021-11-13 18:11:00,736 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_watchdog [2021-11-13 18:11:00,736 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_watchdog [2021-11-13 18:11:00,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-13 18:11:00,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-13 18:11:00,737 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_bw_mode [2021-11-13 18:11:00,737 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_bw_mode [2021-11-13 18:11:00,737 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_fast_ant_training [2021-11-13 18:11:00,737 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_fast_ant_training [2021-11-13 18:11:00,738 INFO L130 BoogieDeclarations]: Found specification of procedure sim_comp [2021-11-13 18:11:00,738 INFO L138 BoogieDeclarations]: Found implementation of procedure sim_comp [2021-11-13 18:11:00,738 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_deinit_sw_vars [2021-11-13 18:11:00,738 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_deinit_sw_vars [2021-11-13 18:11:00,738 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_tx_polling [2021-11-13 18:11:00,739 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_tx_polling [2021-11-13 18:11:00,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:11:00,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 18:11:00,739 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_phy_pi_mode_switch [2021-11-13 18:11:00,739 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_phy_pi_mode_switch [2021-11-13 18:11:00,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_65___0 [2021-11-13 18:11:00,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_65___0 [2021-11-13 18:11:00,740 INFO L130 BoogieDeclarations]: Found specification of procedure cal_bit_shift [2021-11-13 18:11:00,740 INFO L138 BoogieDeclarations]: Found implementation of procedure cal_bit_shift [2021-11-13 18:11:00,740 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_enable_fw_download [2021-11-13 18:11:00,740 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_enable_fw_download [2021-11-13 18:11:00,741 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_ctl [2021-11-13 18:11:00,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_ctl [2021-11-13 18:11:00,741 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2021-11-13 18:11:00,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2021-11-13 18:11:00,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 18:11:00,742 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-13 18:11:00,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-13 18:11:00,742 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-11-13 18:11:00,742 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-11-13 18:11:00,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-13 18:11:00,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-13 18:11:00,743 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_set_fw_ps_rf_on [2021-11-13 18:11:00,743 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_set_fw_ps_rf_on [2021-11-13 18:11:00,743 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count___3 [2021-11-13 18:11:00,743 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count___3 [2021-11-13 18:11:00,743 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count___0 [2021-11-13 18:11:00,744 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count___0 [2021-11-13 18:11:00,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-13 18:11:00,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-13 18:11:00,744 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_hw_init [2021-11-13 18:11:00,744 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_hw_init [2021-11-13 18:11:00,744 INFO L130 BoogieDeclarations]: Found specification of procedure check_cond [2021-11-13 18:11:00,745 INFO L138 BoogieDeclarations]: Found implementation of procedure check_cond [2021-11-13 18:11:00,745 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_get_rfreg [2021-11-13 18:11:00,745 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_get_rfreg [2021-11-13 18:11:00,745 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_initial_gain_min_pwdb [2021-11-13 18:11:00,745 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_initial_gain_min_pwdb [2021-11-13 18:11:00,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_81 [2021-11-13 18:11:00,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_81 [2021-11-13 18:11:00,746 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_phy_iq_calibrate [2021-11-13 18:11:00,746 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_phy_iq_calibrate [2021-11-13 18:11:00,746 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_set_fw_ps_rf_off_low_power [2021-11-13 18:11:00,746 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_set_fw_ps_rf_off_low_power [2021-11-13 18:11:00,747 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2021-11-13 18:11:00,747 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2021-11-13 18:11:00,747 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_pci_resume [2021-11-13 18:11:00,747 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_pci_resume [2021-11-13 18:11:00,747 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u32~0 [2021-11-13 18:11:00,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u32~0 [2021-11-13 18:11:00,748 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_get_hw_reg [2021-11-13 18:11:00,748 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_get_hw_reg [2021-11-13 18:11:00,748 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_phy_scan_operation_backup [2021-11-13 18:11:00,748 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_phy_scan_operation_backup [2021-11-13 18:11:00,748 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-13 18:11:00,749 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-13 18:11:00,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_64___0 [2021-11-13 18:11:00,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_64___0 [2021-11-13 18:11:00,749 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-11-13 18:11:00,749 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-11-13 18:11:00,749 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_fill_h2c_cmd [2021-11-13 18:11:00,750 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_fill_h2c_cmd [2021-11-13 18:11:00,750 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_fw_page_write [2021-11-13 18:11:00,750 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_fw_page_write [2021-11-13 18:11:00,750 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_query_rxpwrpercentage [2021-11-13 18:11:00,750 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_query_rxpwrpercentage [2021-11-13 18:11:00,751 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_update_tx_ant [2021-11-13 18:11:00,751 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_update_tx_ant [2021-11-13 18:11:00,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 18:11:00,751 INFO L130 BoogieDeclarations]: Found specification of procedure reload_adda [2021-11-13 18:11:00,751 INFO L138 BoogieDeclarations]: Found implementation of procedure reload_adda [2021-11-13 18:11:00,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-13 18:11:00,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-13 18:11:00,752 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_get_bbreg [2021-11-13 18:11:00,752 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_get_bbreg [2021-11-13 18:11:00,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_64 [2021-11-13 18:11:00,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_64 [2021-11-13 18:11:00,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_82 [2021-11-13 18:11:00,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_82 [2021-11-13 18:11:00,753 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_read_eeprom_info [2021-11-13 18:11:00,753 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_read_eeprom_info [2021-11-13 18:11:00,753 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_set_fw_clock_off [2021-11-13 18:11:00,753 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_set_fw_clock_off [2021-11-13 18:11:00,753 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_set_bbreg [2021-11-13 18:11:00,754 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_set_bbreg [2021-11-13 18:11:00,754 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-11-13 18:11:00,754 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-11-13 18:11:00,754 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_resume_tx_beacon [2021-11-13 18:11:00,754 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_resume_tx_beacon [2021-11-13 18:11:00,754 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_init_sw_vars [2021-11-13 18:11:00,755 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_init_sw_vars [2021-11-13 18:11:00,755 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2021-11-13 18:11:00,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2021-11-13 18:11:00,755 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88_config_s [2021-11-13 18:11:00,755 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88_config_s [2021-11-13 18:11:00,755 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-11-13 18:11:00,756 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-11-13 18:11:00,756 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2021-11-13 18:11:00,756 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2021-11-13 18:11:00,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-13 18:11:00,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-13 18:11:00,756 INFO L130 BoogieDeclarations]: Found specification of procedure config_bb_with_header [2021-11-13 18:11:00,757 INFO L138 BoogieDeclarations]: Found implementation of procedure config_bb_with_header [2021-11-13 18:11:00,757 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-13 18:11:00,757 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-13 18:11:00,757 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_dword [2021-11-13 18:11:00,757 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_dword [2021-11-13 18:11:00,757 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_set_media_status [2021-11-13 18:11:00,758 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_set_media_status [2021-11-13 18:11:00,758 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_fwlps_leave [2021-11-13 18:11:00,758 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_fwlps_leave [2021-11-13 18:11:00,758 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-11-13 18:11:00,758 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-11-13 18:11:00,759 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_tx_fill_cmddesc [2021-11-13 18:11:00,759 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_tx_fill_cmddesc [2021-11-13 18:11:00,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 18:11:00,759 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_pci_disconnect [2021-11-13 18:11:00,759 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_pci_disconnect [2021-11-13 18:11:00,759 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_sw_chnl_cmdarray [2021-11-13 18:11:00,760 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_sw_chnl_cmdarray [2021-11-13 18:11:00,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-13 18:11:00,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-13 18:11:00,760 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_set_fw_clock_on [2021-11-13 18:11:00,760 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_set_fw_clock_on [2021-11-13 18:11:00,761 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2021-11-13 18:11:00,761 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2021-11-13 18:11:04,149 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-13 18:18:08,694 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:18:08,694 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2021-11-13 18:18:08,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:18:08 BoogieIcfgContainer [2021-11-13 18:18:08,706 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:18:08,708 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 18:18:08,709 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 18:18:08,713 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 18:18:08,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:10:42" (1/3) ... [2021-11-13 18:18:08,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1606c706 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:18:08, skipping insertion in model container [2021-11-13 18:18:08,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:10:56" (2/3) ... [2021-11-13 18:18:08,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1606c706 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:18:08, skipping insertion in model container [2021-11-13 18:18:08,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:18:08" (3/3) ... [2021-11-13 18:18:08,717 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i [2021-11-13 18:18:08,724 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 18:18:08,724 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-13 18:18:08,815 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 18:18:08,823 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 18:18:08,824 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-13 18:18:09,002 INFO L276 IsEmpty]: Start isEmpty. Operand has 7329 states, 4957 states have (on average 1.3679644946540246) internal successors, (6781), 5148 states have internal predecessors, (6781), 2197 states have call successors, (2197), 180 states have call predecessors, (2197), 179 states have return successors, (2189), 2108 states have call predecessors, (2189), 2189 states have call successors, (2189) [2021-11-13 18:18:09,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-13 18:18:09,011 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:18:09,012 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] [2021-11-13 18:18:09,012 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 18:18:09,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:18:09,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1981103035, now seen corresponding path program 1 times [2021-11-13 18:18:09,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:18:09,032 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145262760] [2021-11-13 18:18:09,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:18:09,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:18:10,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:11,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:18:11,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:11,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-13 18:18:11,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:11,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-13 18:18:11,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:11,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:11,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:11,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-13 18:18:11,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:11,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-13 18:18:11,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:11,981 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-13 18:18:11,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:18:11,983 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145262760] [2021-11-13 18:18:11,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145262760] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:18:11,984 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:18:11,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:18:11,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426873416] [2021-11-13 18:18:11,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:18:11,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:18:11,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:18:12,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:18:12,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:18:12,058 INFO L87 Difference]: Start difference. First operand has 7329 states, 4957 states have (on average 1.3679644946540246) internal successors, (6781), 5148 states have internal predecessors, (6781), 2197 states have call successors, (2197), 180 states have call predecessors, (2197), 179 states have return successors, (2189), 2108 states have call predecessors, (2189), 2189 states have call successors, (2189) Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 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) [2021-11-13 18:18:12,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:18:12,877 INFO L93 Difference]: Finished difference Result 9560 states and 14671 transitions. [2021-11-13 18:18:12,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:18:12,880 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 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 48 [2021-11-13 18:18:12,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:18:12,951 INFO L225 Difference]: With dead ends: 9560 [2021-11-13 18:18:12,951 INFO L226 Difference]: Without dead ends: 4319 [2021-11-13 18:18:13,012 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 [2021-11-13 18:18:13,017 INFO L933 BasicCegarLoop]: 7063 mSDtfsCounter, 7037 mSDsluCounter, 14108 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7054 SdHoareTripleChecker+Valid, 21171 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 128.75ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 67.27ms IncrementalHoareTripleChecker+Time [2021-11-13 18:18:13,018 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7054 Valid, 21171 Invalid, 25 Unknown, 0 Unchecked, 128.75ms Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 67.27ms Time] [2021-11-13 18:18:13,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4319 states. [2021-11-13 18:18:13,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4319 to 4319. [2021-11-13 18:18:13,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4319 states, 3007 states have (on average 1.3269038909211839) internal successors, (3990), 3102 states have internal predecessors, (3990), 1173 states have call successors, (1173), 143 states have call predecessors, (1173), 136 states have return successors, (1155), 1113 states have call predecessors, (1155), 1155 states have call successors, (1155) [2021-11-13 18:18:13,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4319 states to 4319 states and 6318 transitions. [2021-11-13 18:18:13,667 INFO L78 Accepts]: Start accepts. Automaton has 4319 states and 6318 transitions. Word has length 48 [2021-11-13 18:18:13,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:18:13,669 INFO L470 AbstractCegarLoop]: Abstraction has 4319 states and 6318 transitions. [2021-11-13 18:18:13,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 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) [2021-11-13 18:18:13,671 INFO L276 IsEmpty]: Start isEmpty. Operand 4319 states and 6318 transitions. [2021-11-13 18:18:13,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-13 18:18:13,676 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:18:13,677 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] [2021-11-13 18:18:13,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 18:18:13,682 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)] === [2021-11-13 18:18:13,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:18:13,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1438058696, now seen corresponding path program 1 times [2021-11-13 18:18:13,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:18:13,687 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24807264] [2021-11-13 18:18:13,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:18:13,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:18:14,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:15,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:18:15,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:15,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-13 18:18:15,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:15,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-13 18:18:15,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:15,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:15,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:15,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-13 18:18:15,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:15,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-13 18:18:15,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:15,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-13 18:18:15,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:15,730 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-13 18:18:15,730 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:18:15,731 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24807264] [2021-11-13 18:18:15,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24807264] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:18:15,731 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:18:15,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:18:15,737 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6770363] [2021-11-13 18:18:15,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:18:15,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:18:15,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:18:15,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:18:15,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:18:15,742 INFO L87 Difference]: Start difference. First operand 4319 states and 6318 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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) [2021-11-13 18:18:16,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:18:16,302 INFO L93 Difference]: Finished difference Result 4325 states and 6323 transitions. [2021-11-13 18:18:16,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:18:16,303 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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 53 [2021-11-13 18:18:16,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:18:16,351 INFO L225 Difference]: With dead ends: 4325 [2021-11-13 18:18:16,351 INFO L226 Difference]: Without dead ends: 4323 [2021-11-13 18:18:16,355 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 [2021-11-13 18:18:16,358 INFO L933 BasicCegarLoop]: 6315 mSDtfsCounter, 6282 mSDsluCounter, 12606 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 68.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6297 SdHoareTripleChecker+Valid, 18921 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 87.66ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 80.69ms IncrementalHoareTripleChecker+Time [2021-11-13 18:18:16,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6297 Valid, 18921 Invalid, 25 Unknown, 0 Unchecked, 87.66ms Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 80.69ms Time] [2021-11-13 18:18:16,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4323 states. [2021-11-13 18:18:16,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4323 to 4323. [2021-11-13 18:18:16,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4323 states, 3010 states have (on average 1.326578073089701) internal successors, (3993), 3105 states have internal predecessors, (3993), 1173 states have call successors, (1173), 144 states have call predecessors, (1173), 137 states have return successors, (1155), 1113 states have call predecessors, (1155), 1155 states have call successors, (1155) [2021-11-13 18:18:16,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4323 states to 4323 states and 6321 transitions. [2021-11-13 18:18:16,754 INFO L78 Accepts]: Start accepts. Automaton has 4323 states and 6321 transitions. Word has length 53 [2021-11-13 18:18:16,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:18:16,757 INFO L470 AbstractCegarLoop]: Abstraction has 4323 states and 6321 transitions. [2021-11-13 18:18:16,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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) [2021-11-13 18:18:16,758 INFO L276 IsEmpty]: Start isEmpty. Operand 4323 states and 6321 transitions. [2021-11-13 18:18:16,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-13 18:18:16,771 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:18:16,771 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] [2021-11-13 18:18:16,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 18:18:16,772 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)] === [2021-11-13 18:18:16,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:18:16,773 INFO L85 PathProgramCache]: Analyzing trace with hash -224578075, now seen corresponding path program 1 times [2021-11-13 18:18:16,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:18:16,776 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634367550] [2021-11-13 18:18:16,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:18:16,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:18:17,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:18,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:18:18,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:18,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-13 18:18:18,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:18,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-13 18:18:18,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:18,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:18,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:18,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-13 18:18:18,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:18,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-13 18:18:18,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:18,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-13 18:18:18,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:18,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-13 18:18:18,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:18,702 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-13 18:18:18,702 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:18:18,703 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634367550] [2021-11-13 18:18:18,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634367550] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:18:18,703 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:18:18,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:18:18,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247495555] [2021-11-13 18:18:18,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:18:18,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:18:18,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:18:18,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:18:18,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:18:18,706 INFO L87 Difference]: Start difference. First operand 4323 states and 6321 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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) [2021-11-13 18:18:19,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:18:19,177 INFO L93 Difference]: Finished difference Result 4329 states and 6326 transitions. [2021-11-13 18:18:19,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:18:19,178 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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 58 [2021-11-13 18:18:19,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:18:19,224 INFO L225 Difference]: With dead ends: 4329 [2021-11-13 18:18:19,224 INFO L226 Difference]: Without dead ends: 4327 [2021-11-13 18:18:19,229 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 [2021-11-13 18:18:19,230 INFO L933 BasicCegarLoop]: 6315 mSDtfsCounter, 6282 mSDsluCounter, 12606 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6296 SdHoareTripleChecker+Valid, 18921 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 70.62ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 66.05ms IncrementalHoareTripleChecker+Time [2021-11-13 18:18:19,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6296 Valid, 18921 Invalid, 25 Unknown, 0 Unchecked, 70.62ms Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 66.05ms Time] [2021-11-13 18:18:19,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4327 states. [2021-11-13 18:18:19,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4327 to 4327. [2021-11-13 18:18:19,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4327 states, 3013 states have (on average 1.32625290408231) internal successors, (3996), 3108 states have internal predecessors, (3996), 1173 states have call successors, (1173), 145 states have call predecessors, (1173), 138 states have return successors, (1155), 1113 states have call predecessors, (1155), 1155 states have call successors, (1155) [2021-11-13 18:18:19,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4327 states to 4327 states and 6324 transitions. [2021-11-13 18:18:19,651 INFO L78 Accepts]: Start accepts. Automaton has 4327 states and 6324 transitions. Word has length 58 [2021-11-13 18:18:19,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:18:19,652 INFO L470 AbstractCegarLoop]: Abstraction has 4327 states and 6324 transitions. [2021-11-13 18:18:19,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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) [2021-11-13 18:18:19,653 INFO L276 IsEmpty]: Start isEmpty. Operand 4327 states and 6324 transitions. [2021-11-13 18:18:19,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-13 18:18:19,657 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:18:19,658 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] [2021-11-13 18:18:19,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 18:18:19,658 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)] === [2021-11-13 18:18:19,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:18:19,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1898236584, now seen corresponding path program 1 times [2021-11-13 18:18:19,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:18:19,659 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955857426] [2021-11-13 18:18:19,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:18:19,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:18:20,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:21,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:18:21,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:21,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-13 18:18:21,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:21,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-13 18:18:21,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:21,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:21,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:21,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-13 18:18:21,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:21,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-13 18:18:21,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:21,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-13 18:18:21,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:21,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-13 18:18:21,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:21,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-13 18:18:21,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:21,294 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 18:18:21,295 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:18:21,295 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955857426] [2021-11-13 18:18:21,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955857426] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:18:21,296 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:18:21,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:18:21,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395530796] [2021-11-13 18:18:21,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:18:21,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:18:21,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:18:21,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:18:21,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:18:21,298 INFO L87 Difference]: Start difference. First operand 4327 states and 6324 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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) [2021-11-13 18:18:21,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:18:21,767 INFO L93 Difference]: Finished difference Result 4347 states and 6340 transitions. [2021-11-13 18:18:21,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:18:21,767 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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 63 [2021-11-13 18:18:21,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:18:21,819 INFO L225 Difference]: With dead ends: 4347 [2021-11-13 18:18:21,820 INFO L226 Difference]: Without dead ends: 4345 [2021-11-13 18:18:21,825 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 [2021-11-13 18:18:21,828 INFO L933 BasicCegarLoop]: 6318 mSDtfsCounter, 6251 mSDsluCounter, 12652 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6264 SdHoareTripleChecker+Valid, 18970 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 66.91ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 70.16ms IncrementalHoareTripleChecker+Time [2021-11-13 18:18:21,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6264 Valid, 18970 Invalid, 27 Unknown, 0 Unchecked, 66.91ms Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 70.16ms Time] [2021-11-13 18:18:21,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4345 states. [2021-11-13 18:18:22,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4345 to 4343. [2021-11-13 18:18:22,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4343 states, 3025 states have (on average 1.3252892561983471) internal successors, (4009), 3120 states have internal predecessors, (4009), 1173 states have call successors, (1173), 149 states have call predecessors, (1173), 142 states have return successors, (1155), 1113 states have call predecessors, (1155), 1155 states have call successors, (1155) [2021-11-13 18:18:22,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4343 states to 4343 states and 6337 transitions. [2021-11-13 18:18:22,270 INFO L78 Accepts]: Start accepts. Automaton has 4343 states and 6337 transitions. Word has length 63 [2021-11-13 18:18:22,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:18:22,271 INFO L470 AbstractCegarLoop]: Abstraction has 4343 states and 6337 transitions. [2021-11-13 18:18:22,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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) [2021-11-13 18:18:22,272 INFO L276 IsEmpty]: Start isEmpty. Operand 4343 states and 6337 transitions. [2021-11-13 18:18:22,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-13 18:18:22,275 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:18:22,276 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] [2021-11-13 18:18:22,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 18:18:22,277 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 18:18:22,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:18:22,278 INFO L85 PathProgramCache]: Analyzing trace with hash -921186427, now seen corresponding path program 1 times [2021-11-13 18:18:22,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:18:22,278 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392543117] [2021-11-13 18:18:22,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:18:22,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:18:22,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:23,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:18:23,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:23,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-13 18:18:23,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:23,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-13 18:18:23,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:23,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:23,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:23,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-13 18:18:23,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:23,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-13 18:18:23,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:23,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-13 18:18:23,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:23,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-13 18:18:23,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:23,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-13 18:18:23,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:23,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-13 18:18:23,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:23,935 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-11-13 18:18:23,935 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:18:23,935 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392543117] [2021-11-13 18:18:23,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392543117] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:18:23,936 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:18:23,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:18:23,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49431429] [2021-11-13 18:18:23,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:18:23,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:18:23,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:18:23,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:18:23,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:18:23,940 INFO L87 Difference]: Start difference. First operand 4343 states and 6337 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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) [2021-11-13 18:18:24,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:18:24,404 INFO L93 Difference]: Finished difference Result 4359 states and 6350 transitions. [2021-11-13 18:18:24,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:18:24,405 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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 68 [2021-11-13 18:18:24,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:18:24,452 INFO L225 Difference]: With dead ends: 4359 [2021-11-13 18:18:24,452 INFO L226 Difference]: Without dead ends: 4357 [2021-11-13 18:18:24,457 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 [2021-11-13 18:18:24,460 INFO L933 BasicCegarLoop]: 6318 mSDtfsCounter, 6245 mSDsluCounter, 12658 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 60.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6257 SdHoareTripleChecker+Valid, 18976 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 66.23ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 69.68ms IncrementalHoareTripleChecker+Time [2021-11-13 18:18:24,463 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6257 Valid, 18976 Invalid, 27 Unknown, 0 Unchecked, 66.23ms Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 69.68ms Time] [2021-11-13 18:18:24,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4357 states. [2021-11-13 18:18:24,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4357 to 4355. [2021-11-13 18:18:24,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4355 states, 3034 states have (on average 1.3246539222148979) internal successors, (4019), 3129 states have internal predecessors, (4019), 1173 states have call successors, (1173), 152 states have call predecessors, (1173), 145 states have return successors, (1155), 1113 states have call predecessors, (1155), 1155 states have call successors, (1155) [2021-11-13 18:18:24,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4355 states to 4355 states and 6347 transitions. [2021-11-13 18:18:24,872 INFO L78 Accepts]: Start accepts. Automaton has 4355 states and 6347 transitions. Word has length 68 [2021-11-13 18:18:24,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:18:24,873 INFO L470 AbstractCegarLoop]: Abstraction has 4355 states and 6347 transitions. [2021-11-13 18:18:24,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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) [2021-11-13 18:18:24,873 INFO L276 IsEmpty]: Start isEmpty. Operand 4355 states and 6347 transitions. [2021-11-13 18:18:24,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-13 18:18:24,875 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:18:24,876 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 5, 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] [2021-11-13 18:18:24,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-13 18:18:24,877 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 18:18:24,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:18:24,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1113365368, now seen corresponding path program 1 times [2021-11-13 18:18:24,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:18:24,878 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747810094] [2021-11-13 18:18:24,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:18:24,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:18:25,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:26,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:18:26,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:26,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-13 18:18:26,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:26,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-13 18:18:26,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:26,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:26,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:26,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-13 18:18:26,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:26,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-13 18:18:26,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:26,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-13 18:18:26,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:26,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-13 18:18:26,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:26,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-13 18:18:26,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:26,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-13 18:18:26,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:26,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-13 18:18:26,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:26,440 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-13 18:18:26,440 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:18:26,440 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747810094] [2021-11-13 18:18:26,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747810094] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:18:26,441 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:18:26,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:18:26,441 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503430257] [2021-11-13 18:18:26,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:18:26,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:18:26,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:18:26,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:18:26,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:18:26,443 INFO L87 Difference]: Start difference. First operand 4355 states and 6347 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-13 18:18:26,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:18:26,912 INFO L93 Difference]: Finished difference Result 4384 states and 6370 transitions. [2021-11-13 18:18:26,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:18:26,913 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 73 [2021-11-13 18:18:26,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:18:26,980 INFO L225 Difference]: With dead ends: 4384 [2021-11-13 18:18:26,980 INFO L226 Difference]: Without dead ends: 4382 [2021-11-13 18:18:26,985 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:18:26,987 INFO L933 BasicCegarLoop]: 6322 mSDtfsCounter, 6237 mSDsluCounter, 12681 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59.60ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6248 SdHoareTripleChecker+Valid, 19003 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 61.81ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 68.17ms IncrementalHoareTripleChecker+Time [2021-11-13 18:18:26,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6248 Valid, 19003 Invalid, 27 Unknown, 0 Unchecked, 61.81ms Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 68.17ms Time] [2021-11-13 18:18:26,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4382 states. [2021-11-13 18:18:27,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4382 to 4380. [2021-11-13 18:18:27,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4380 states, 3053 states have (on average 1.3229610219456271) internal successors, (4039), 3148 states have internal predecessors, (4039), 1173 states have call successors, (1173), 158 states have call predecessors, (1173), 151 states have return successors, (1155), 1113 states have call predecessors, (1155), 1155 states have call successors, (1155) [2021-11-13 18:18:27,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4380 states to 4380 states and 6367 transitions. [2021-11-13 18:18:27,742 INFO L78 Accepts]: Start accepts. Automaton has 4380 states and 6367 transitions. Word has length 73 [2021-11-13 18:18:27,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:18:27,743 INFO L470 AbstractCegarLoop]: Abstraction has 4380 states and 6367 transitions. [2021-11-13 18:18:27,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-13 18:18:27,743 INFO L276 IsEmpty]: Start isEmpty. Operand 4380 states and 6367 transitions. [2021-11-13 18:18:27,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-13 18:18:27,745 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:18:27,745 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 6, 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] [2021-11-13 18:18:27,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-13 18:18:27,746 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 18:18:27,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:18:27,746 INFO L85 PathProgramCache]: Analyzing trace with hash -203135594, now seen corresponding path program 1 times [2021-11-13 18:18:27,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:18:27,747 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650112770] [2021-11-13 18:18:27,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:18:27,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:18:28,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:29,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:18:29,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:29,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-13 18:18:29,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:29,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-13 18:18:29,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:29,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:29,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:29,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-13 18:18:29,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:29,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-13 18:18:29,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:29,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-13 18:18:29,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:29,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-13 18:18:29,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:29,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-13 18:18:29,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:29,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-13 18:18:29,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:29,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-13 18:18:29,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:29,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-13 18:18:29,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:29,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 18:18:29,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:29,563 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-11-13 18:18:29,564 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:18:29,564 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650112770] [2021-11-13 18:18:29,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650112770] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:18:29,564 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:18:29,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:18:29,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080349445] [2021-11-13 18:18:29,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:18:29,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:18:29,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:18:29,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:18:29,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:18:29,568 INFO L87 Difference]: Start difference. First operand 4380 states and 6367 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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) [2021-11-13 18:18:30,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:18:30,037 INFO L93 Difference]: Finished difference Result 4386 states and 6372 transitions. [2021-11-13 18:18:30,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:18:30,038 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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 91 [2021-11-13 18:18:30,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:18:30,067 INFO L225 Difference]: With dead ends: 4386 [2021-11-13 18:18:30,067 INFO L226 Difference]: Without dead ends: 4384 [2021-11-13 18:18:30,072 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 [2021-11-13 18:18:30,073 INFO L933 BasicCegarLoop]: 6315 mSDtfsCounter, 6272 mSDsluCounter, 12606 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 55.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6282 SdHoareTripleChecker+Valid, 18921 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 61.40ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 62.61ms IncrementalHoareTripleChecker+Time [2021-11-13 18:18:30,074 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6282 Valid, 18921 Invalid, 25 Unknown, 0 Unchecked, 61.40ms Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 62.61ms Time] [2021-11-13 18:18:30,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4384 states. [2021-11-13 18:18:30,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4384 to 4384. [2021-11-13 18:18:30,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4384 states, 3056 states have (on average 1.3226439790575917) internal successors, (4042), 3151 states have internal predecessors, (4042), 1173 states have call successors, (1173), 159 states have call predecessors, (1173), 152 states have return successors, (1155), 1113 states have call predecessors, (1155), 1155 states have call successors, (1155) [2021-11-13 18:18:30,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4384 states to 4384 states and 6370 transitions. [2021-11-13 18:18:30,543 INFO L78 Accepts]: Start accepts. Automaton has 4384 states and 6370 transitions. Word has length 91 [2021-11-13 18:18:30,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:18:30,545 INFO L470 AbstractCegarLoop]: Abstraction has 4384 states and 6370 transitions. [2021-11-13 18:18:30,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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) [2021-11-13 18:18:30,545 INFO L276 IsEmpty]: Start isEmpty. Operand 4384 states and 6370 transitions. [2021-11-13 18:18:30,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-13 18:18:30,554 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:18:30,555 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 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] [2021-11-13 18:18:30,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-13 18:18:30,556 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 18:18:30,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:18:30,557 INFO L85 PathProgramCache]: Analyzing trace with hash -2038357865, now seen corresponding path program 1 times [2021-11-13 18:18:30,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:18:30,557 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605639581] [2021-11-13 18:18:30,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:18:30,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:18:31,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:31,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:18:31,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:31,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-13 18:18:31,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:31,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-13 18:18:31,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:31,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:31,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:31,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-13 18:18:31,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:32,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-13 18:18:32,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:32,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-13 18:18:32,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:32,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-13 18:18:32,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:32,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-13 18:18:32,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:32,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-13 18:18:32,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:32,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-13 18:18:32,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:32,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-13 18:18:32,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:32,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 18:18:32,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:32,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-13 18:18:32,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:32,188 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-11-13 18:18:32,189 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:18:32,189 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605639581] [2021-11-13 18:18:32,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605639581] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:18:32,189 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:18:32,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:18:32,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905228903] [2021-11-13 18:18:32,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:18:32,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:18:32,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:18:32,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:18:32,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:18:32,192 INFO L87 Difference]: Start difference. First operand 4384 states and 6370 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-13 18:18:32,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:18:32,671 INFO L93 Difference]: Finished difference Result 4512 states and 6517 transitions. [2021-11-13 18:18:32,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:18:32,672 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 96 [2021-11-13 18:18:32,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:18:32,701 INFO L225 Difference]: With dead ends: 4512 [2021-11-13 18:18:32,701 INFO L226 Difference]: Without dead ends: 4510 [2021-11-13 18:18:32,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:18:32,707 INFO L933 BasicCegarLoop]: 6336 mSDtfsCounter, 6256 mSDsluCounter, 12806 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6265 SdHoareTripleChecker+Valid, 19142 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 60.24ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 67.60ms IncrementalHoareTripleChecker+Time [2021-11-13 18:18:32,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6265 Valid, 19142 Invalid, 27 Unknown, 0 Unchecked, 60.24ms Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 67.60ms Time] [2021-11-13 18:18:32,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4510 states. [2021-11-13 18:18:33,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4510 to 4508. [2021-11-13 18:18:33,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4508 states, 3144 states have (on average 1.3180661577608141) internal successors, (4144), 3240 states have internal predecessors, (4144), 1194 states have call successors, (1194), 174 states have call predecessors, (1194), 167 states have return successors, (1176), 1134 states have call predecessors, (1176), 1176 states have call successors, (1176) [2021-11-13 18:18:33,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4508 states to 4508 states and 6514 transitions. [2021-11-13 18:18:33,210 INFO L78 Accepts]: Start accepts. Automaton has 4508 states and 6514 transitions. Word has length 96 [2021-11-13 18:18:33,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:18:33,210 INFO L470 AbstractCegarLoop]: Abstraction has 4508 states and 6514 transitions. [2021-11-13 18:18:33,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-13 18:18:33,211 INFO L276 IsEmpty]: Start isEmpty. Operand 4508 states and 6514 transitions. [2021-11-13 18:18:33,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-13 18:18:33,213 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:18:33,214 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] [2021-11-13 18:18:33,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-13 18:18:33,215 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 18:18:33,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:18:33,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1366504950, now seen corresponding path program 1 times [2021-11-13 18:18:33,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:18:33,218 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418985030] [2021-11-13 18:18:33,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:18:33,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:18:33,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:34,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:18:34,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:34,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-13 18:18:34,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:34,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-13 18:18:34,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:34,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:34,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:34,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-13 18:18:34,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:34,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-13 18:18:34,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:34,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-13 18:18:34,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:34,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-13 18:18:34,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:34,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-13 18:18:34,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:34,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-13 18:18:34,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:34,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-13 18:18:34,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:34,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-13 18:18:34,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:34,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 18:18:34,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:34,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-13 18:18:34,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:34,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-13 18:18:34,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:34,999 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2021-11-13 18:18:34,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:18:34,999 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418985030] [2021-11-13 18:18:35,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418985030] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:18:35,000 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:18:35,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:18:35,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928930913] [2021-11-13 18:18:35,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:18:35,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:18:35,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:18:35,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:18:35,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:18:35,002 INFO L87 Difference]: Start difference. First operand 4508 states and 6514 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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) [2021-11-13 18:18:35,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:18:35,612 INFO L93 Difference]: Finished difference Result 4514 states and 6519 transitions. [2021-11-13 18:18:35,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:18:35,613 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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 101 [2021-11-13 18:18:35,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:18:35,642 INFO L225 Difference]: With dead ends: 4514 [2021-11-13 18:18:35,643 INFO L226 Difference]: Without dead ends: 4512 [2021-11-13 18:18:35,647 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 [2021-11-13 18:18:35,650 INFO L933 BasicCegarLoop]: 6315 mSDtfsCounter, 6272 mSDsluCounter, 12606 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6280 SdHoareTripleChecker+Valid, 18921 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 63.05ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 66.91ms IncrementalHoareTripleChecker+Time [2021-11-13 18:18:35,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6280 Valid, 18921 Invalid, 25 Unknown, 0 Unchecked, 63.05ms Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 66.91ms Time] [2021-11-13 18:18:35,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4512 states. [2021-11-13 18:18:36,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4512 to 4512. [2021-11-13 18:18:36,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4512 states, 3147 states have (on average 1.3177629488401652) internal successors, (4147), 3243 states have internal predecessors, (4147), 1194 states have call successors, (1194), 175 states have call predecessors, (1194), 168 states have return successors, (1176), 1134 states have call predecessors, (1176), 1176 states have call successors, (1176) [2021-11-13 18:18:36,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4512 states to 4512 states and 6517 transitions. [2021-11-13 18:18:36,181 INFO L78 Accepts]: Start accepts. Automaton has 4512 states and 6517 transitions. Word has length 101 [2021-11-13 18:18:36,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:18:36,182 INFO L470 AbstractCegarLoop]: Abstraction has 4512 states and 6517 transitions. [2021-11-13 18:18:36,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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) [2021-11-13 18:18:36,183 INFO L276 IsEmpty]: Start isEmpty. Operand 4512 states and 6517 transitions. [2021-11-13 18:18:36,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-13 18:18:36,186 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:18:36,186 INFO L514 BasicCegarLoop]: trace histogram [10, 9, 9, 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] [2021-11-13 18:18:36,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-13 18:18:36,186 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 18:18:36,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:18:36,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1768218552, now seen corresponding path program 1 times [2021-11-13 18:18:36,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:18:36,188 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989876325] [2021-11-13 18:18:36,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:18:36,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:18:36,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:37,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:18:37,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:37,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-13 18:18:37,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:37,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-13 18:18:37,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:37,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:37,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:37,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-13 18:18:37,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:37,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-13 18:18:37,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:37,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-13 18:18:37,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:37,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-13 18:18:37,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:37,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-13 18:18:37,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:37,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-13 18:18:37,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:37,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-13 18:18:37,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:37,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:18:37,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:37,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-13 18:18:37,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:37,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-13 18:18:37,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:37,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-13 18:18:37,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:37,866 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2021-11-13 18:18:37,866 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:18:37,866 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989876325] [2021-11-13 18:18:37,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989876325] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:18:37,867 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:18:37,867 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:18:37,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950645942] [2021-11-13 18:18:37,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:18:37,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:18:37,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:18:37,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:18:37,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:18:37,870 INFO L87 Difference]: Start difference. First operand 4512 states and 6517 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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) [2021-11-13 18:18:38,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:18:38,367 INFO L93 Difference]: Finished difference Result 4518 states and 6522 transitions. [2021-11-13 18:18:38,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:18:38,367 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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 93 [2021-11-13 18:18:38,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:18:38,395 INFO L225 Difference]: With dead ends: 4518 [2021-11-13 18:18:38,396 INFO L226 Difference]: Without dead ends: 4516 [2021-11-13 18:18:38,400 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 [2021-11-13 18:18:38,401 INFO L933 BasicCegarLoop]: 6315 mSDtfsCounter, 6282 mSDsluCounter, 12606 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 63.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6289 SdHoareTripleChecker+Valid, 18921 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 56.09ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 72.14ms IncrementalHoareTripleChecker+Time [2021-11-13 18:18:38,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6289 Valid, 18921 Invalid, 25 Unknown, 0 Unchecked, 56.09ms Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 72.14ms Time] [2021-11-13 18:18:38,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4516 states. [2021-11-13 18:18:38,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4516 to 4516. [2021-11-13 18:18:38,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4516 states, 3150 states have (on average 1.3174603174603174) internal successors, (4150), 3246 states have internal predecessors, (4150), 1194 states have call successors, (1194), 176 states have call predecessors, (1194), 169 states have return successors, (1176), 1134 states have call predecessors, (1176), 1176 states have call successors, (1176) [2021-11-13 18:18:38,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4516 states to 4516 states and 6520 transitions. [2021-11-13 18:18:38,923 INFO L78 Accepts]: Start accepts. Automaton has 4516 states and 6520 transitions. Word has length 93 [2021-11-13 18:18:38,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:18:38,924 INFO L470 AbstractCegarLoop]: Abstraction has 4516 states and 6520 transitions. [2021-11-13 18:18:38,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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) [2021-11-13 18:18:38,924 INFO L276 IsEmpty]: Start isEmpty. Operand 4516 states and 6520 transitions. [2021-11-13 18:18:38,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-13 18:18:38,931 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:18:38,931 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] [2021-11-13 18:18:38,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-13 18:18:38,932 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 18:18:38,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:18:38,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1592966742, now seen corresponding path program 1 times [2021-11-13 18:18:38,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:18:38,933 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889665998] [2021-11-13 18:18:38,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:18:38,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:18:39,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:40,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:18:40,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:40,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-13 18:18:40,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:40,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-13 18:18:40,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:40,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:40,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:40,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-13 18:18:40,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:40,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-13 18:18:40,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:40,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-13 18:18:40,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:40,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-13 18:18:40,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:40,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-13 18:18:40,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:40,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-13 18:18:40,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:40,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-13 18:18:40,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:40,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-13 18:18:40,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:40,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 18:18:40,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:40,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-13 18:18:40,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:40,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-13 18:18:40,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:40,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-13 18:18:40,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:40,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:18:40,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:40,702 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2021-11-13 18:18:40,703 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:18:40,703 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889665998] [2021-11-13 18:18:40,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889665998] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:18:40,704 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:18:40,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:18:40,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872616165] [2021-11-13 18:18:40,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:18:40,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:18:40,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:18:40,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:18:40,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:18:40,707 INFO L87 Difference]: Start difference. First operand 4516 states and 6520 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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) [2021-11-13 18:18:41,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:18:41,356 INFO L93 Difference]: Finished difference Result 4522 states and 6525 transitions. [2021-11-13 18:18:41,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:18:41,357 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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 111 [2021-11-13 18:18:41,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:18:41,384 INFO L225 Difference]: With dead ends: 4522 [2021-11-13 18:18:41,384 INFO L226 Difference]: Without dead ends: 4520 [2021-11-13 18:18:41,387 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 [2021-11-13 18:18:41,389 INFO L933 BasicCegarLoop]: 6315 mSDtfsCounter, 6272 mSDsluCounter, 12606 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 62.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6278 SdHoareTripleChecker+Valid, 18921 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 55.57ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 72.10ms IncrementalHoareTripleChecker+Time [2021-11-13 18:18:41,390 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6278 Valid, 18921 Invalid, 25 Unknown, 0 Unchecked, 55.57ms Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 72.10ms Time] [2021-11-13 18:18:41,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4520 states. [2021-11-13 18:18:41,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4520 to 4520. [2021-11-13 18:18:41,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4520 states, 3153 states have (on average 1.3171582619727245) internal successors, (4153), 3249 states have internal predecessors, (4153), 1194 states have call successors, (1194), 177 states have call predecessors, (1194), 170 states have return successors, (1176), 1134 states have call predecessors, (1176), 1176 states have call successors, (1176) [2021-11-13 18:18:41,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4520 states to 4520 states and 6523 transitions. [2021-11-13 18:18:41,955 INFO L78 Accepts]: Start accepts. Automaton has 4520 states and 6523 transitions. Word has length 111 [2021-11-13 18:18:41,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:18:41,956 INFO L470 AbstractCegarLoop]: Abstraction has 4520 states and 6523 transitions. [2021-11-13 18:18:41,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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) [2021-11-13 18:18:41,956 INFO L276 IsEmpty]: Start isEmpty. Operand 4520 states and 6523 transitions. [2021-11-13 18:18:41,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-13 18:18:41,959 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:18:41,960 INFO L514 BasicCegarLoop]: trace histogram [12, 11, 11, 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] [2021-11-13 18:18:41,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-13 18:18:41,960 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 18:18:41,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:18:41,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1187028695, now seen corresponding path program 1 times [2021-11-13 18:18:41,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:18:41,961 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557588788] [2021-11-13 18:18:41,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:18:41,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:18:42,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:43,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:18:43,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:43,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-13 18:18:43,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:43,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-13 18:18:43,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:43,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:43,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:43,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-13 18:18:43,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:43,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-13 18:18:43,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:43,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-13 18:18:43,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:43,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-13 18:18:43,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:43,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-13 18:18:43,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:43,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-13 18:18:43,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:43,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-13 18:18:43,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:43,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-13 18:18:43,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:43,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 18:18:43,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:43,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-13 18:18:43,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:43,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-13 18:18:43,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:43,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-13 18:18:43,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:43,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:18:43,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:43,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-13 18:18:43,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:43,663 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2021-11-13 18:18:43,663 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:18:43,663 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557588788] [2021-11-13 18:18:43,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557588788] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:18:43,664 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:18:43,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:18:43,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908278655] [2021-11-13 18:18:43,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:18:43,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:18:43,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:18:43,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:18:43,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:18:43,666 INFO L87 Difference]: Start difference. First operand 4520 states and 6523 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-13 18:18:44,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:18:44,167 INFO L93 Difference]: Finished difference Result 4526 states and 6528 transitions. [2021-11-13 18:18:44,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:18:44,168 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 116 [2021-11-13 18:18:44,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:18:44,197 INFO L225 Difference]: With dead ends: 4526 [2021-11-13 18:18:44,197 INFO L226 Difference]: Without dead ends: 4524 [2021-11-13 18:18:44,201 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:18:44,202 INFO L933 BasicCegarLoop]: 6315 mSDtfsCounter, 6272 mSDsluCounter, 12606 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 62.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6277 SdHoareTripleChecker+Valid, 18921 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 52.22ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 70.75ms IncrementalHoareTripleChecker+Time [2021-11-13 18:18:44,203 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6277 Valid, 18921 Invalid, 25 Unknown, 0 Unchecked, 52.22ms Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 70.75ms Time] [2021-11-13 18:18:44,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4524 states. [2021-11-13 18:18:44,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4524 to 4524. [2021-11-13 18:18:44,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4524 states, 3156 states have (on average 1.3168567807351077) internal successors, (4156), 3252 states have internal predecessors, (4156), 1194 states have call successors, (1194), 178 states have call predecessors, (1194), 171 states have return successors, (1176), 1134 states have call predecessors, (1176), 1176 states have call successors, (1176) [2021-11-13 18:18:44,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4524 states to 4524 states and 6526 transitions. [2021-11-13 18:18:44,723 INFO L78 Accepts]: Start accepts. Automaton has 4524 states and 6526 transitions. Word has length 116 [2021-11-13 18:18:44,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:18:44,724 INFO L470 AbstractCegarLoop]: Abstraction has 4524 states and 6526 transitions. [2021-11-13 18:18:44,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-13 18:18:44,725 INFO L276 IsEmpty]: Start isEmpty. Operand 4524 states and 6526 transitions. [2021-11-13 18:18:44,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-13 18:18:44,728 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:18:44,728 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] [2021-11-13 18:18:44,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-13 18:18:44,728 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 18:18:44,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:18:44,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1356660406, now seen corresponding path program 1 times [2021-11-13 18:18:44,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:18:44,729 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389587896] [2021-11-13 18:18:44,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:18:44,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:18:45,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:45,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:18:45,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:46,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-13 18:18:46,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:46,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-13 18:18:46,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:46,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:46,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:46,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-13 18:18:46,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:46,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-13 18:18:46,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:46,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-13 18:18:46,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:46,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-13 18:18:46,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:46,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-13 18:18:46,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:46,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-13 18:18:46,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:46,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-13 18:18:46,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:46,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-13 18:18:46,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:46,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 18:18:46,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:46,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-13 18:18:46,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:46,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-13 18:18:46,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:46,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-13 18:18:46,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:46,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:18:46,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:46,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-13 18:18:46,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:46,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-13 18:18:46,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:46,423 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2021-11-13 18:18:46,423 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:18:46,423 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389587896] [2021-11-13 18:18:46,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389587896] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:18:46,424 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:18:46,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:18:46,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070072426] [2021-11-13 18:18:46,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:18:46,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:18:46,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:18:46,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:18:46,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:18:46,426 INFO L87 Difference]: Start difference. First operand 4524 states and 6526 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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) [2021-11-13 18:18:46,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:18:46,913 INFO L93 Difference]: Finished difference Result 4530 states and 6531 transitions. [2021-11-13 18:18:46,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:18:46,914 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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 121 [2021-11-13 18:18:46,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:18:46,943 INFO L225 Difference]: With dead ends: 4530 [2021-11-13 18:18:46,943 INFO L226 Difference]: Without dead ends: 4528 [2021-11-13 18:18:46,947 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 [2021-11-13 18:18:46,948 INFO L933 BasicCegarLoop]: 6315 mSDtfsCounter, 6272 mSDsluCounter, 12606 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6276 SdHoareTripleChecker+Valid, 18921 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 49.36ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.68ms IncrementalHoareTripleChecker+Time [2021-11-13 18:18:46,949 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6276 Valid, 18921 Invalid, 25 Unknown, 0 Unchecked, 49.36ms Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 51.68ms Time] [2021-11-13 18:18:46,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4528 states. [2021-11-13 18:18:47,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4528 to 4528. [2021-11-13 18:18:47,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4528 states, 3159 states have (on average 1.3165558721114277) internal successors, (4159), 3255 states have internal predecessors, (4159), 1194 states have call successors, (1194), 179 states have call predecessors, (1194), 172 states have return successors, (1176), 1134 states have call predecessors, (1176), 1176 states have call successors, (1176) [2021-11-13 18:18:47,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4528 states to 4528 states and 6529 transitions. [2021-11-13 18:18:47,456 INFO L78 Accepts]: Start accepts. Automaton has 4528 states and 6529 transitions. Word has length 121 [2021-11-13 18:18:47,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:18:47,457 INFO L470 AbstractCegarLoop]: Abstraction has 4528 states and 6529 transitions. [2021-11-13 18:18:47,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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) [2021-11-13 18:18:47,458 INFO L276 IsEmpty]: Start isEmpty. Operand 4528 states and 6529 transitions. [2021-11-13 18:18:47,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-13 18:18:47,462 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:18:47,462 INFO L514 BasicCegarLoop]: trace histogram [14, 13, 13, 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] [2021-11-13 18:18:47,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-13 18:18:47,463 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 18:18:47,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:18:47,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1227766792, now seen corresponding path program 1 times [2021-11-13 18:18:47,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:18:47,464 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093200967] [2021-11-13 18:18:47,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:18:47,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:18:48,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:48,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:18:48,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:48,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-13 18:18:48,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:48,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-13 18:18:48,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:48,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:48,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:48,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-13 18:18:48,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:48,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-13 18:18:48,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:48,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-13 18:18:48,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:48,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-13 18:18:48,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:48,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-13 18:18:48,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:48,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-13 18:18:48,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:48,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-13 18:18:48,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:48,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:18:48,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:48,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-13 18:18:48,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:48,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-13 18:18:48,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:48,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-13 18:18:48,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:48,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-11-13 18:18:48,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:48,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-11-13 18:18:48,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:48,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-13 18:18:48,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:48,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-13 18:18:48,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:48,787 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2021-11-13 18:18:48,787 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:18:48,787 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093200967] [2021-11-13 18:18:48,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093200967] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:18:48,788 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:18:48,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:18:48,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875980719] [2021-11-13 18:18:48,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:18:48,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:18:48,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:18:48,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:18:48,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:18:48,790 INFO L87 Difference]: Start difference. First operand 4528 states and 6529 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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) [2021-11-13 18:18:49,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:18:49,287 INFO L93 Difference]: Finished difference Result 4534 states and 6534 transitions. [2021-11-13 18:18:49,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:18:49,288 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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 113 [2021-11-13 18:18:49,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:18:49,314 INFO L225 Difference]: With dead ends: 4534 [2021-11-13 18:18:49,315 INFO L226 Difference]: Without dead ends: 4532 [2021-11-13 18:18:49,319 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 [2021-11-13 18:18:49,321 INFO L933 BasicCegarLoop]: 6315 mSDtfsCounter, 6282 mSDsluCounter, 12606 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6285 SdHoareTripleChecker+Valid, 18921 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 44.46ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 63.89ms IncrementalHoareTripleChecker+Time [2021-11-13 18:18:49,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6285 Valid, 18921 Invalid, 25 Unknown, 0 Unchecked, 44.46ms Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 63.89ms Time] [2021-11-13 18:18:49,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4532 states. [2021-11-13 18:18:49,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4532 to 4532. [2021-11-13 18:18:49,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4532 states, 3162 states have (on average 1.3162555344718532) internal successors, (4162), 3258 states have internal predecessors, (4162), 1194 states have call successors, (1194), 180 states have call predecessors, (1194), 173 states have return successors, (1176), 1134 states have call predecessors, (1176), 1176 states have call successors, (1176) [2021-11-13 18:18:49,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4532 states to 4532 states and 6532 transitions. [2021-11-13 18:18:49,795 INFO L78 Accepts]: Start accepts. Automaton has 4532 states and 6532 transitions. Word has length 113 [2021-11-13 18:18:49,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:18:49,796 INFO L470 AbstractCegarLoop]: Abstraction has 4532 states and 6532 transitions. [2021-11-13 18:18:49,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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) [2021-11-13 18:18:49,796 INFO L276 IsEmpty]: Start isEmpty. Operand 4532 states and 6532 transitions. [2021-11-13 18:18:49,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-11-13 18:18:49,800 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:18:49,800 INFO L514 BasicCegarLoop]: trace histogram [15, 14, 14, 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] [2021-11-13 18:18:49,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-13 18:18:49,801 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 18:18:49,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:18:49,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1960052970, now seen corresponding path program 1 times [2021-11-13 18:18:49,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:18:49,802 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452170956] [2021-11-13 18:18:49,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:18:49,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:18:50,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:51,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:18:51,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:51,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-13 18:18:51,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:51,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-13 18:18:51,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:51,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:51,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:51,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-13 18:18:51,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:51,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-13 18:18:51,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:51,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-13 18:18:51,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:51,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-13 18:18:51,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:51,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-13 18:18:51,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:51,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-13 18:18:51,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:51,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-13 18:18:51,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:51,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-13 18:18:51,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:51,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 18:18:51,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:51,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-13 18:18:51,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:51,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-13 18:18:51,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:51,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-13 18:18:51,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:51,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:18:51,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:51,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-13 18:18:51,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:51,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-13 18:18:51,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:51,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-13 18:18:51,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:51,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-13 18:18:51,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:51,535 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2021-11-13 18:18:51,535 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:18:51,535 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452170956] [2021-11-13 18:18:51,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452170956] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:18:51,535 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:18:51,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:18:51,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627652450] [2021-11-13 18:18:51,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:18:51,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:18:51,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:18:51,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:18:51,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:18:51,538 INFO L87 Difference]: Start difference. First operand 4532 states and 6532 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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) [2021-11-13 18:18:52,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:18:52,040 INFO L93 Difference]: Finished difference Result 4544 states and 6541 transitions. [2021-11-13 18:18:52,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:18:52,041 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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 131 [2021-11-13 18:18:52,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:18:52,079 INFO L225 Difference]: With dead ends: 4544 [2021-11-13 18:18:52,079 INFO L226 Difference]: Without dead ends: 4542 [2021-11-13 18:18:52,086 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:18:52,088 INFO L933 BasicCegarLoop]: 6315 mSDtfsCounter, 6249 mSDsluCounter, 12635 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.81ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6251 SdHoareTripleChecker+Valid, 18950 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 42.43ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 64.17ms IncrementalHoareTripleChecker+Time [2021-11-13 18:18:52,089 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6251 Valid, 18950 Invalid, 27 Unknown, 0 Unchecked, 42.43ms Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 64.17ms Time] [2021-11-13 18:18:52,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4542 states. [2021-11-13 18:18:52,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4542 to 4540. [2021-11-13 18:18:52,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4540 states, 3168 states have (on average 1.3156565656565657) internal successors, (4168), 3264 states have internal predecessors, (4168), 1194 states have call successors, (1194), 182 states have call predecessors, (1194), 175 states have return successors, (1176), 1134 states have call predecessors, (1176), 1176 states have call successors, (1176) [2021-11-13 18:18:52,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4540 states to 4540 states and 6538 transitions. [2021-11-13 18:18:52,668 INFO L78 Accepts]: Start accepts. Automaton has 4540 states and 6538 transitions. Word has length 131 [2021-11-13 18:18:52,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:18:52,669 INFO L470 AbstractCegarLoop]: Abstraction has 4540 states and 6538 transitions. [2021-11-13 18:18:52,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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) [2021-11-13 18:18:52,669 INFO L276 IsEmpty]: Start isEmpty. Operand 4540 states and 6538 transitions. [2021-11-13 18:18:52,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-13 18:18:52,674 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:18:52,674 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] [2021-11-13 18:18:52,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-13 18:18:52,676 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 18:18:52,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:18:52,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1397689832, now seen corresponding path program 1 times [2021-11-13 18:18:52,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:18:52,677 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132806849] [2021-11-13 18:18:52,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:18:52,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:18:53,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:53,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:18:53,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:53,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-13 18:18:53,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:53,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-13 18:18:53,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:53,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:53,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:53,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-13 18:18:53,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:54,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-13 18:18:54,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:54,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-13 18:18:54,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:54,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-13 18:18:54,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:54,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-13 18:18:54,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:54,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-13 18:18:54,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:54,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-13 18:18:54,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:54,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:18:54,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:54,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-13 18:18:54,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:54,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-13 18:18:54,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:54,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-13 18:18:54,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:54,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-11-13 18:18:54,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:54,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-11-13 18:18:54,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:54,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-13 18:18:54,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:54,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-13 18:18:54,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:54,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-13 18:18:54,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:54,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-13 18:18:54,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:54,201 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2021-11-13 18:18:54,201 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:18:54,201 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132806849] [2021-11-13 18:18:54,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132806849] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:18:54,202 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:18:54,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:18:54,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293179759] [2021-11-13 18:18:54,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:18:54,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:18:54,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:18:54,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:18:54,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:18:54,204 INFO L87 Difference]: Start difference. First operand 4540 states and 6538 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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) [2021-11-13 18:18:54,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:18:54,735 INFO L93 Difference]: Finished difference Result 4546 states and 6543 transitions. [2021-11-13 18:18:54,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:18:54,736 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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 123 [2021-11-13 18:18:54,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:18:54,766 INFO L225 Difference]: With dead ends: 4546 [2021-11-13 18:18:54,766 INFO L226 Difference]: Without dead ends: 4542 [2021-11-13 18:18:54,771 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:18:54,772 INFO L933 BasicCegarLoop]: 6315 mSDtfsCounter, 6282 mSDsluCounter, 12606 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 68.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6283 SdHoareTripleChecker+Valid, 18921 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 45.41ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 75.77ms IncrementalHoareTripleChecker+Time [2021-11-13 18:18:54,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6283 Valid, 18921 Invalid, 25 Unknown, 0 Unchecked, 45.41ms Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 75.77ms Time] [2021-11-13 18:18:54,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4542 states. [2021-11-13 18:18:55,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4542 to 4542. [2021-11-13 18:18:55,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4542 states, 3170 states have (on average 1.315141955835962) internal successors, (4169), 3265 states have internal predecessors, (4169), 1194 states have call successors, (1194), 183 states have call predecessors, (1194), 175 states have return successors, (1176), 1134 states have call predecessors, (1176), 1176 states have call successors, (1176) [2021-11-13 18:18:55,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4542 states to 4542 states and 6539 transitions. [2021-11-13 18:18:55,334 INFO L78 Accepts]: Start accepts. Automaton has 4542 states and 6539 transitions. Word has length 123 [2021-11-13 18:18:55,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:18:55,335 INFO L470 AbstractCegarLoop]: Abstraction has 4542 states and 6539 transitions. [2021-11-13 18:18:55,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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) [2021-11-13 18:18:55,335 INFO L276 IsEmpty]: Start isEmpty. Operand 4542 states and 6539 transitions. [2021-11-13 18:18:55,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-11-13 18:18:55,340 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:18:55,341 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] [2021-11-13 18:18:55,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-13 18:18:55,341 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 18:18:55,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:18:55,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1096394614, now seen corresponding path program 1 times [2021-11-13 18:18:55,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:18:55,342 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021353892] [2021-11-13 18:18:55,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:18:55,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:18:56,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:56,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:18:56,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:56,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-13 18:18:56,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:56,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-13 18:18:56,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:56,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:56,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:56,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-13 18:18:56,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:56,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-13 18:18:56,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:56,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-13 18:18:56,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:56,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-13 18:18:56,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:56,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-13 18:18:56,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:56,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-13 18:18:56,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:56,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-13 18:18:56,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:56,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-13 18:18:56,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:56,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 18:18:56,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:56,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-13 18:18:56,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:56,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-13 18:18:56,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:56,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-13 18:18:56,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:56,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:18:56,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:56,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-13 18:18:56,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:56,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-13 18:18:56,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:56,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-13 18:18:56,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:57,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-13 18:18:57,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:57,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-13 18:18:57,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:57,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-13 18:18:57,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:57,052 INFO L134 CoverageAnalysis]: Checked inductivity of 533 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 501 trivial. 0 not checked. [2021-11-13 18:18:57,053 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:18:57,053 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021353892] [2021-11-13 18:18:57,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021353892] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:18:57,053 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:18:57,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:18:57,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255660649] [2021-11-13 18:18:57,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:18:57,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:18:57,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:18:57,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:18:57,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:18:57,056 INFO L87 Difference]: Start difference. First operand 4542 states and 6539 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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) [2021-11-13 18:18:57,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:18:57,496 INFO L93 Difference]: Finished difference Result 4542 states and 6539 transitions. [2021-11-13 18:18:57,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:18:57,497 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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 141 [2021-11-13 18:18:57,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:18:57,521 INFO L225 Difference]: With dead ends: 4542 [2021-11-13 18:18:57,521 INFO L226 Difference]: Without dead ends: 4443 [2021-11-13 18:18:57,526 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 [2021-11-13 18:18:57,527 INFO L933 BasicCegarLoop]: 6313 mSDtfsCounter, 6268 mSDsluCounter, 12605 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6268 SdHoareTripleChecker+Valid, 18918 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 35.92ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.70ms IncrementalHoareTripleChecker+Time [2021-11-13 18:18:57,527 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6268 Valid, 18918 Invalid, 20 Unknown, 0 Unchecked, 35.92ms Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 50.70ms Time] [2021-11-13 18:18:57,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4443 states. [2021-11-13 18:18:58,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4443 to 4443. [2021-11-13 18:18:58,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4443 states, 3108 states have (on average 1.3204633204633205) internal successors, (4104), 3201 states have internal predecessors, (4104), 1174 states have call successors, (1174), 165 states have call predecessors, (1174), 159 states have return successors, (1159), 1117 states have call predecessors, (1159), 1159 states have call successors, (1159) [2021-11-13 18:18:58,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4443 states to 4443 states and 6437 transitions. [2021-11-13 18:18:58,178 INFO L78 Accepts]: Start accepts. Automaton has 4443 states and 6437 transitions. Word has length 141 [2021-11-13 18:18:58,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:18:58,180 INFO L470 AbstractCegarLoop]: Abstraction has 4443 states and 6437 transitions. [2021-11-13 18:18:58,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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) [2021-11-13 18:18:58,181 INFO L276 IsEmpty]: Start isEmpty. Operand 4443 states and 6437 transitions. [2021-11-13 18:18:58,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-11-13 18:18:58,189 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:18:58,190 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 4, 4, 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] [2021-11-13 18:18:58,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-13 18:18:58,190 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 18:18:58,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:18:58,191 INFO L85 PathProgramCache]: Analyzing trace with hash -2008433797, now seen corresponding path program 1 times [2021-11-13 18:18:58,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:18:58,191 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702939245] [2021-11-13 18:18:58,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:18:58,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:18:59,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:00,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:19:00,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:00,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-13 18:19:00,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:00,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-13 18:19:00,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:00,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:00,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:00,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-13 18:19:00,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:00,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-13 18:19:00,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:00,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-13 18:19:00,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:00,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-13 18:19:00,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:00,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:00,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:00,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:19:00,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:00,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:19:00,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:00,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-13 18:19:00,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:00,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-13 18:19:00,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:00,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:00,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:00,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:19:00,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:00,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:19:00,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:00,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-13 18:19:00,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:00,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-13 18:19:00,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:01,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-13 18:19:01,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:01,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:19:01,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:01,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-13 18:19:01,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:01,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:19:01,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:01,456 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2021-11-13 18:19:01,456 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:19:01,457 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702939245] [2021-11-13 18:19:01,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702939245] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:19:01,457 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:19:01,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-13 18:19:01,457 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491740208] [2021-11-13 18:19:01,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:19:01,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-13 18:19:01,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:19:01,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-13 18:19:01,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-11-13 18:19:01,459 INFO L87 Difference]: Start difference. First operand 4443 states and 6437 transitions. Second operand has 10 states, 10 states have (on average 8.2) internal successors, (82), 7 states have internal predecessors, (82), 3 states have call successors, (25), 5 states have call predecessors, (25), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-13 18:19:03,949 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:19:06,016 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:19:09,020 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:19:11,034 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:19:13,049 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:19:15,075 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:19:17,090 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:19:37,239 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:19:53,821 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:19:55,850 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:19:57,873 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:19:59,913 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:20:01,949 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:20:06,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:20:06,051 INFO L93 Difference]: Finished difference Result 9080 states and 13294 transitions. [2021-11-13 18:20:06,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-13 18:20:06,053 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.2) internal successors, (82), 7 states have internal predecessors, (82), 3 states have call successors, (25), 5 states have call predecessors, (25), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 164 [2021-11-13 18:20:06,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:20:06,086 INFO L225 Difference]: With dead ends: 9080 [2021-11-13 18:20:06,086 INFO L226 Difference]: Without dead ends: 4656 [2021-11-13 18:20:06,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2021-11-13 18:20:06,115 INFO L933 BasicCegarLoop]: 4989 mSDtfsCounter, 12909 mSDsluCounter, 13838 mSDsCounter, 0 mSdLazyCounter, 12551 mSolverCounterSat, 9409 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 58794.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13205 SdHoareTripleChecker+Valid, 18827 SdHoareTripleChecker+Invalid, 21973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 256.27ms SdHoareTripleChecker+Time, 9409 IncrementalHoareTripleChecker+Valid, 12551 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 63053.90ms IncrementalHoareTripleChecker+Time [2021-11-13 18:20:06,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13205 Valid, 18827 Invalid, 21973 Unknown, 0 Unchecked, 256.27ms Time], IncrementalHoareTripleChecker [9409 Valid, 12551 Invalid, 13 Unknown, 0 Unchecked, 63053.90ms Time] [2021-11-13 18:20:06,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4656 states. [2021-11-13 18:20:06,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4656 to 4449. [2021-11-13 18:20:06,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4449 states, 3113 states have (on average 1.319948602634115) internal successors, (4109), 3206 states have internal predecessors, (4109), 1174 states have call successors, (1174), 166 states have call predecessors, (1174), 160 states have return successors, (1159), 1117 states have call predecessors, (1159), 1159 states have call successors, (1159) [2021-11-13 18:20:06,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4449 states to 4449 states and 6442 transitions. [2021-11-13 18:20:06,675 INFO L78 Accepts]: Start accepts. Automaton has 4449 states and 6442 transitions. Word has length 164 [2021-11-13 18:20:06,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:20:06,675 INFO L470 AbstractCegarLoop]: Abstraction has 4449 states and 6442 transitions. [2021-11-13 18:20:06,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.2) internal successors, (82), 7 states have internal predecessors, (82), 3 states have call successors, (25), 5 states have call predecessors, (25), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-13 18:20:06,676 INFO L276 IsEmpty]: Start isEmpty. Operand 4449 states and 6442 transitions. [2021-11-13 18:20:06,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-11-13 18:20:06,685 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:20:06,685 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 2, 2, 2, 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] [2021-11-13 18:20:06,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-13 18:20:06,686 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)] === [2021-11-13 18:20:06,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:20:06,686 INFO L85 PathProgramCache]: Analyzing trace with hash 89736876, now seen corresponding path program 1 times [2021-11-13 18:20:06,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:20:06,687 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249971480] [2021-11-13 18:20:06,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:20:06,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:20:07,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:07,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:20:07,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:07,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-13 18:20:07,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:07,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-13 18:20:07,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:07,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:20:07,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:07,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-13 18:20:07,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:08,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-13 18:20:08,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:08,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-13 18:20:08,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:08,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-13 18:20:08,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:08,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:20:08,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:08,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:20:08,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:08,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:20:08,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:08,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-13 18:20:08,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:08,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-13 18:20:08,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:08,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:20:08,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:08,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:20:08,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:08,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:20:08,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:08,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-13 18:20:08,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:08,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-13 18:20:08,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:08,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-13 18:20:08,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:08,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:20:08,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:08,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:20:08,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:08,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 18:20:08,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:08,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-13 18:20:08,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:08,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-13 18:20:08,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:08,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-13 18:20:08,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:08,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-13 18:20:08,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:08,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-13 18:20:08,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:08,498 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2021-11-13 18:20:08,498 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:20:08,498 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249971480] [2021-11-13 18:20:08,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249971480] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:20:08,499 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:20:08,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:20:08,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855355821] [2021-11-13 18:20:08,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:20:08,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:20:08,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:20:08,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:20:08,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:20:08,502 INFO L87 Difference]: Start difference. First operand 4449 states and 6442 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-13 18:20:10,901 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:20:19,018 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:20:25,230 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:20:26,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:20:26,785 INFO L93 Difference]: Finished difference Result 4524 states and 6571 transitions. [2021-11-13 18:20:26,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:20:26,786 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 173 [2021-11-13 18:20:26,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:20:26,815 INFO L225 Difference]: With dead ends: 4524 [2021-11-13 18:20:26,815 INFO L226 Difference]: Without dead ends: 4431 [2021-11-13 18:20:26,820 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-13 18:20:26,821 INFO L933 BasicCegarLoop]: 5965 mSDtfsCounter, 5888 mSDsluCounter, 13668 mSDsCounter, 0 mSdLazyCounter, 3171 mSolverCounterSat, 2068 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16202.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6616 SdHoareTripleChecker+Valid, 19633 SdHoareTripleChecker+Invalid, 5242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 99.98ms SdHoareTripleChecker+Time, 2068 IncrementalHoareTripleChecker+Valid, 3171 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17621.66ms IncrementalHoareTripleChecker+Time [2021-11-13 18:20:26,822 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6616 Valid, 19633 Invalid, 5242 Unknown, 0 Unchecked, 99.98ms Time], IncrementalHoareTripleChecker [2068 Valid, 3171 Invalid, 3 Unknown, 0 Unchecked, 17621.66ms Time] [2021-11-13 18:20:26,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4431 states. [2021-11-13 18:20:27,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4431 to 4362. [2021-11-13 18:20:27,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4362 states, 3062 states have (on average 1.3190725016329197) internal successors, (4039), 3149 states have internal predecessors, (4039), 1138 states have call successors, (1138), 162 states have call predecessors, (1138), 160 states have return successors, (1133), 1091 states have call predecessors, (1133), 1133 states have call successors, (1133) [2021-11-13 18:20:27,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4362 states to 4362 states and 6310 transitions. [2021-11-13 18:20:27,568 INFO L78 Accepts]: Start accepts. Automaton has 4362 states and 6310 transitions. Word has length 173 [2021-11-13 18:20:27,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:20:27,568 INFO L470 AbstractCegarLoop]: Abstraction has 4362 states and 6310 transitions. [2021-11-13 18:20:27,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-13 18:20:27,569 INFO L276 IsEmpty]: Start isEmpty. Operand 4362 states and 6310 transitions. [2021-11-13 18:20:27,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-11-13 18:20:27,580 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:20:27,580 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-13 18:20:27,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-13 18:20:27,581 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)] === [2021-11-13 18:20:27,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:20:27,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1240562980, now seen corresponding path program 1 times [2021-11-13 18:20:27,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:20:27,582 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118059549] [2021-11-13 18:20:27,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:20:27,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:20:28,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:29,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:20:29,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:29,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-13 18:20:29,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:29,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-13 18:20:29,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:29,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:20:29,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:29,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-13 18:20:29,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:29,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-13 18:20:29,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:29,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-13 18:20:29,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:29,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-13 18:20:29,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:29,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:20:29,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:29,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:20:29,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:29,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:20:29,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:29,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-13 18:20:29,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:29,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-13 18:20:29,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:29,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:20:29,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:29,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:20:29,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:29,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:20:29,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:29,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-13 18:20:29,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:29,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-13 18:20:29,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:29,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-13 18:20:29,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:29,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:20:29,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:29,712 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-11-13 18:20:29,713 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:20:29,713 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118059549] [2021-11-13 18:20:29,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118059549] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:20:29,714 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [978399533] [2021-11-13 18:20:29,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:20:29,715 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:20:29,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62560eb1-7e79-4262-88e9-702f17627f76/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:20:29,717 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62560eb1-7e79-4262-88e9-702f17627f76/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:20:29,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62560eb1-7e79-4262-88e9-702f17627f76/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-13 18:20:36,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:36,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 11879 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-13 18:20:36,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:20:37,911 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-11-13 18:20:37,911 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:20:39,399 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-11-13 18:20:39,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [978399533] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 18:20:39,400 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 18:20:39,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 6] total 11 [2021-11-13 18:20:39,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031724131] [2021-11-13 18:20:39,400 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 18:20:39,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-13 18:20:39,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:20:39,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-13 18:20:39,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-11-13 18:20:39,402 INFO L87 Difference]: Start difference. First operand 4362 states and 6310 transitions. Second operand has 11 states, 11 states have (on average 12.909090909090908) internal successors, (142), 7 states have internal predecessors, (142), 4 states have call successors, (49), 8 states have call predecessors, (49), 4 states have return successors, (35), 4 states have call predecessors, (35), 4 states have call successors, (35) [2021-11-13 18:20:41,892 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.48s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:20:43,938 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:20:45,987 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:20:48,648 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:20:49,775 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:20:51,807 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:20:53,167 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:21:08,657 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:21:10,691 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:21:22,522 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:21:25,401 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:21:27,439 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:21:29,466 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:21:31,515 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:21:35,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:21:35,691 INFO L93 Difference]: Finished difference Result 4567 states and 6659 transitions. [2021-11-13 18:21:35,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 18:21:35,692 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.909090909090908) internal successors, (142), 7 states have internal predecessors, (142), 4 states have call successors, (49), 8 states have call predecessors, (49), 4 states have return successors, (35), 4 states have call predecessors, (35), 4 states have call successors, (35) Word has length 184 [2021-11-13 18:21:35,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:21:35,721 INFO L225 Difference]: With dead ends: 4567 [2021-11-13 18:21:35,721 INFO L226 Difference]: Without dead ends: 4565 [2021-11-13 18:21:35,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 411 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2021-11-13 18:21:35,727 INFO L933 BasicCegarLoop]: 4905 mSDtfsCounter, 11942 mSDsluCounter, 10219 mSDsCounter, 0 mSdLazyCounter, 9472 mSolverCounterSat, 7739 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51580.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12231 SdHoareTripleChecker+Valid, 15124 SdHoareTripleChecker+Invalid, 17222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 153.81ms SdHoareTripleChecker+Time, 7739 IncrementalHoareTripleChecker+Valid, 9472 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 55167.86ms IncrementalHoareTripleChecker+Time [2021-11-13 18:21:35,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12231 Valid, 15124 Invalid, 17222 Unknown, 0 Unchecked, 153.81ms Time], IncrementalHoareTripleChecker [7739 Valid, 9472 Invalid, 11 Unknown, 0 Unchecked, 55167.86ms Time] [2021-11-13 18:21:35,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4565 states. [2021-11-13 18:21:36,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4565 to 4366. [2021-11-13 18:21:36,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4366 states, 3065 states have (on average 1.3187601957585644) internal successors, (4042), 3152 states have internal predecessors, (4042), 1138 states have call successors, (1138), 163 states have call predecessors, (1138), 161 states have return successors, (1133), 1091 states have call predecessors, (1133), 1133 states have call successors, (1133) [2021-11-13 18:21:36,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4366 states to 4366 states and 6313 transitions. [2021-11-13 18:21:36,482 INFO L78 Accepts]: Start accepts. Automaton has 4366 states and 6313 transitions. Word has length 184 [2021-11-13 18:21:36,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:21:36,483 INFO L470 AbstractCegarLoop]: Abstraction has 4366 states and 6313 transitions. [2021-11-13 18:21:36,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.909090909090908) internal successors, (142), 7 states have internal predecessors, (142), 4 states have call successors, (49), 8 states have call predecessors, (49), 4 states have return successors, (35), 4 states have call predecessors, (35), 4 states have call successors, (35) [2021-11-13 18:21:36,483 INFO L276 IsEmpty]: Start isEmpty. Operand 4366 states and 6313 transitions. [2021-11-13 18:21:36,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-11-13 18:21:36,496 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:21:36,496 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-13 18:21:36,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62560eb1-7e79-4262-88e9-702f17627f76/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-13 18:21:36,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62560eb1-7e79-4262-88e9-702f17627f76/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:21:36,719 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)] === [2021-11-13 18:21:36,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:21:36,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1515136554, now seen corresponding path program 1 times [2021-11-13 18:21:36,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:21:36,720 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97140474] [2021-11-13 18:21:36,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:21:36,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:21:37,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:37,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:21:37,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:37,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-13 18:21:37,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:37,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-13 18:21:37,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:37,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:21:37,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:37,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-13 18:21:37,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:37,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-13 18:21:37,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:37,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-13 18:21:37,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:38,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-13 18:21:38,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:38,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:21:38,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:38,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:21:38,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:38,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:21:38,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:38,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-13 18:21:38,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:38,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-13 18:21:38,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:38,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:21:38,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:38,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:21:38,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:38,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:21:38,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:38,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-13 18:21:38,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:38,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-13 18:21:38,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:38,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-13 18:21:38,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:38,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:21:38,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:38,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-13 18:21:38,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:38,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:21:38,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:38,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-13 18:21:38,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:38,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:21:38,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:38,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:21:38,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:38,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-13 18:21:38,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:38,478 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2021-11-13 18:21:38,479 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:21:38,479 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97140474] [2021-11-13 18:21:38,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97140474] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:21:38,479 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:21:38,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 18:21:38,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797369680] [2021-11-13 18:21:38,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:21:38,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 18:21:38,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:21:38,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 18:21:38,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:21:38,484 INFO L87 Difference]: Start difference. First operand 4366 states and 6313 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (28), 6 states have call predecessors, (28), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-13 18:21:40,957 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.47s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:21:43,002 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:21:45,057 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:21:47,106 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:21:49,762 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:21:51,801 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:21:53,836 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:21:55,864 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:21:57,908 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:22:18,955 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:22:20,986 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:22:38,632 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:22:40,651 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:22:42,685 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:22:44,715 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:22:46,747 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:22:51,939 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:22:54,028 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:22:57,879 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:23:01,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:23:01,895 INFO L93 Difference]: Finished difference Result 4567 states and 6659 transitions. [2021-11-13 18:23:01,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 18:23:01,895 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (28), 6 states have call predecessors, (28), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 186 [2021-11-13 18:23:01,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:23:01,919 INFO L225 Difference]: With dead ends: 4567 [2021-11-13 18:23:01,919 INFO L226 Difference]: Without dead ends: 4495 [2021-11-13 18:23:01,922 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2021-11-13 18:23:01,923 INFO L933 BasicCegarLoop]: 5195 mSDtfsCounter, 3127 mSDsluCounter, 14885 mSDsCounter, 0 mSdLazyCounter, 14473 mSolverCounterSat, 1552 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 77487.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3819 SdHoareTripleChecker+Valid, 20080 SdHoareTripleChecker+Invalid, 16042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 184.26ms SdHoareTripleChecker+Time, 1552 IncrementalHoareTripleChecker+Valid, 14473 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 82151.81ms IncrementalHoareTripleChecker+Time [2021-11-13 18:23:01,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3819 Valid, 20080 Invalid, 16042 Unknown, 0 Unchecked, 184.26ms Time], IncrementalHoareTripleChecker [1552 Valid, 14473 Invalid, 17 Unknown, 0 Unchecked, 82151.81ms Time] [2021-11-13 18:23:01,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4495 states. [2021-11-13 18:23:02,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4495 to 4307. [2021-11-13 18:23:02,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4307 states, 3022 states have (on average 1.3203176704169424) internal successors, (3990), 3108 states have internal predecessors, (3990), 1128 states have call successors, (1128), 157 states have call predecessors, (1128), 155 states have return successors, (1124), 1082 states have call predecessors, (1124), 1124 states have call successors, (1124) [2021-11-13 18:23:02,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4307 states to 4307 states and 6242 transitions. [2021-11-13 18:23:02,467 INFO L78 Accepts]: Start accepts. Automaton has 4307 states and 6242 transitions. Word has length 186 [2021-11-13 18:23:02,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:23:02,468 INFO L470 AbstractCegarLoop]: Abstraction has 4307 states and 6242 transitions. [2021-11-13 18:23:02,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (28), 6 states have call predecessors, (28), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-13 18:23:02,468 INFO L276 IsEmpty]: Start isEmpty. Operand 4307 states and 6242 transitions. [2021-11-13 18:23:02,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-11-13 18:23:02,486 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:23:02,487 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 4, 4, 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] [2021-11-13 18:23:02,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-13 18:23:02,487 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 18:23:02,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:23:02,488 INFO L85 PathProgramCache]: Analyzing trace with hash 960640694, now seen corresponding path program 1 times [2021-11-13 18:23:02,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:23:02,488 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821946048] [2021-11-13 18:23:02,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:23:02,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:23:03,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:03,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:23:03,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:03,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-13 18:23:03,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:03,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-13 18:23:03,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:03,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:23:03,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:03,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-13 18:23:03,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:03,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-13 18:23:03,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:03,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-13 18:23:03,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:03,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-13 18:23:03,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:03,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:23:03,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:03,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:23:03,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:03,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:23:03,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:03,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-13 18:23:03,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:03,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-13 18:23:03,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:03,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:23:03,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:03,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:23:03,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:03,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:23:03,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:03,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-13 18:23:03,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:03,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-13 18:23:03,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:03,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-13 18:23:03,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:03,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-13 18:23:03,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:03,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-13 18:23:03,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:04,007 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2021-11-13 18:23:04,007 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:23:04,007 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821946048] [2021-11-13 18:23:04,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821946048] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:23:04,007 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:23:04,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 18:23:04,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458327151] [2021-11-13 18:23:04,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:23:04,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 18:23:04,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:23:04,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 18:23:04,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:23:04,009 INFO L87 Difference]: Start difference. First operand 4307 states and 6242 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-13 18:23:06,356 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:23:08,427 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:23:10,926 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []