./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-nvidia-forcedeth.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be73e99-891e-4c69-ae35-38a5eb03207d/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be73e99-891e-4c69-ae35-38a5eb03207d/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be73e99-891e-4c69-ae35-38a5eb03207d/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be73e99-891e-4c69-ae35-38a5eb03207d/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-nvidia-forcedeth.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be73e99-891e-4c69-ae35-38a5eb03207d/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be73e99-891e-4c69-ae35-38a5eb03207d/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 181f5b9a97f7cf8062e70af226af12bc222e67b2536d95b282fb684da67802e2 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 21:02:12,672 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 21:02:12,673 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 21:02:12,702 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 21:02:12,703 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 21:02:12,704 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 21:02:12,706 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 21:02:12,707 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 21:02:12,709 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 21:02:12,709 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 21:02:12,710 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 21:02:12,711 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 21:02:12,711 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 21:02:12,712 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 21:02:12,713 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 21:02:12,714 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 21:02:12,715 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 21:02:12,716 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 21:02:12,718 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 21:02:12,719 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 21:02:12,721 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 21:02:12,722 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 21:02:12,723 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 21:02:12,724 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 21:02:12,726 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 21:02:12,727 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 21:02:12,727 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 21:02:12,728 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 21:02:12,728 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 21:02:12,729 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 21:02:12,729 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 21:02:12,730 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 21:02:12,730 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 21:02:12,731 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 21:02:12,732 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 21:02:12,732 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 21:02:12,732 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 21:02:12,732 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 21:02:12,733 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 21:02:12,733 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 21:02:12,734 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 21:02:12,734 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be73e99-891e-4c69-ae35-38a5eb03207d/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-06 21:02:12,750 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 21:02:12,750 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 21:02:12,750 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 21:02:12,751 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 21:02:12,751 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 21:02:12,751 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 21:02:12,752 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 21:02:12,752 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 21:02:12,752 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 21:02:12,752 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 21:02:12,752 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 21:02:12,752 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 21:02:12,752 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 21:02:12,752 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 21:02:12,752 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 21:02:12,753 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 21:02:12,753 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 21:02:12,753 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 21:02:12,753 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 21:02:12,753 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 21:02:12,753 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 21:02:12,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 21:02:12,753 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 21:02:12,754 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 21:02:12,754 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 21:02:12,754 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 21:02:12,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 21:02:12,754 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 21:02:12,754 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 21:02:12,754 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 21:02:12,754 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 21:02:12,754 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_1be73e99-891e-4c69-ae35-38a5eb03207d/bin/uautomizer-DrprNOufMa/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be73e99-891e-4c69-ae35-38a5eb03207d/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 181f5b9a97f7cf8062e70af226af12bc222e67b2536d95b282fb684da67802e2 [2021-12-06 21:02:12,922 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 21:02:12,942 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 21:02:12,944 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 21:02:12,946 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 21:02:12,946 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 21:02:12,947 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be73e99-891e-4c69-ae35-38a5eb03207d/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-nvidia-forcedeth.cil.i [2021-12-06 21:02:12,994 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be73e99-891e-4c69-ae35-38a5eb03207d/bin/uautomizer-DrprNOufMa/data/4d087e824/570c8c76db2b453ab167557f24c1c6cf/FLAG93d4b4107 [2021-12-06 21:02:13,761 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 21:02:13,762 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be73e99-891e-4c69-ae35-38a5eb03207d/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-nvidia-forcedeth.cil.i [2021-12-06 21:02:13,810 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be73e99-891e-4c69-ae35-38a5eb03207d/bin/uautomizer-DrprNOufMa/data/4d087e824/570c8c76db2b453ab167557f24c1c6cf/FLAG93d4b4107 [2021-12-06 21:02:14,019 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be73e99-891e-4c69-ae35-38a5eb03207d/bin/uautomizer-DrprNOufMa/data/4d087e824/570c8c76db2b453ab167557f24c1c6cf [2021-12-06 21:02:14,022 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 21:02:14,023 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 21:02:14,024 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 21:02:14,024 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 21:02:14,026 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 21:02:14,027 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 09:02:14" (1/1) ... [2021-12-06 21:02:14,028 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51e511b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:02:14, skipping insertion in model container [2021-12-06 21:02:14,028 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 09:02:14" (1/1) ... [2021-12-06 21:02:14,033 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 21:02:14,145 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 21:02:18,339 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be73e99-891e-4c69-ae35-38a5eb03207d/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-nvidia-forcedeth.cil.i[577213,577226] [2021-12-06 21:02:18,341 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be73e99-891e-4c69-ae35-38a5eb03207d/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-nvidia-forcedeth.cil.i[577382,577395] [2021-12-06 21:02:18,342 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be73e99-891e-4c69-ae35-38a5eb03207d/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-nvidia-forcedeth.cil.i[577549,577562] [2021-12-06 21:02:18,342 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be73e99-891e-4c69-ae35-38a5eb03207d/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-nvidia-forcedeth.cil.i[577717,577730] [2021-12-06 21:02:18,366 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 21:02:18,434 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 21:02:18,817 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be73e99-891e-4c69-ae35-38a5eb03207d/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-nvidia-forcedeth.cil.i[577213,577226] [2021-12-06 21:02:18,818 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be73e99-891e-4c69-ae35-38a5eb03207d/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-nvidia-forcedeth.cil.i[577382,577395] [2021-12-06 21:02:18,818 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be73e99-891e-4c69-ae35-38a5eb03207d/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-nvidia-forcedeth.cil.i[577549,577562] [2021-12-06 21:02:18,818 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be73e99-891e-4c69-ae35-38a5eb03207d/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-nvidia-forcedeth.cil.i[577717,577730] [2021-12-06 21:02:18,826 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 21:02:19,117 INFO L208 MainTranslator]: Completed translation [2021-12-06 21:02:19,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:02:19 WrapperNode [2021-12-06 21:02:19,118 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 21:02:19,119 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 21:02:19,119 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 21:02:19,119 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 21:02:19,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:02:19" (1/1) ... [2021-12-06 21:02:19,222 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:02:19" (1/1) ... [2021-12-06 21:02:19,527 INFO L137 Inliner]: procedures = 707, calls = 6114, calls flagged for inlining = 338, calls inlined = 309, statements flattened = 12565 [2021-12-06 21:02:19,527 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 21:02:19,528 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 21:02:19,528 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 21:02:19,528 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 21:02:19,535 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:02:19" (1/1) ... [2021-12-06 21:02:19,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:02:19" (1/1) ... [2021-12-06 21:02:19,605 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:02:19" (1/1) ... [2021-12-06 21:02:19,606 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:02:19" (1/1) ... [2021-12-06 21:02:19,775 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:02:19" (1/1) ... [2021-12-06 21:02:19,805 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:02:19" (1/1) ... [2021-12-06 21:02:19,854 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:02:19" (1/1) ... [2021-12-06 21:02:19,892 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 21:02:19,893 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 21:02:19,893 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 21:02:19,893 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 21:02:19,894 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:02:19" (1/1) ... [2021-12-06 21:02:19,900 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 21:02:19,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be73e99-891e-4c69-ae35-38a5eb03207d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:02:19,920 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be73e99-891e-4c69-ae35-38a5eb03207d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 21:02:19,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be73e99-891e-4c69-ae35-38a5eb03207d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 21:02:19,960 INFO L130 BoogieDeclarations]: Found specification of procedure init_realtek_8211b [2021-12-06 21:02:19,960 INFO L138 BoogieDeclarations]: Found implementation of procedure init_realtek_8211b [2021-12-06 21:02:19,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_hwstats_lock_of_fe_priv [2021-12-06 21:02:19,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_hwstats_lock_of_fe_priv [2021-12-06 21:02:19,960 INFO L130 BoogieDeclarations]: Found specification of procedure nv_nway_reset [2021-12-06 21:02:19,960 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_nway_reset [2021-12-06 21:02:19,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_118 [2021-12-06 21:02:19,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_118 [2021-12-06 21:02:19,961 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2021-12-06 21:02:19,961 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2021-12-06 21:02:19,961 INFO L130 BoogieDeclarations]: Found specification of procedure nv_drain_rxtx [2021-12-06 21:02:19,961 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_drain_rxtx [2021-12-06 21:02:19,961 INFO L130 BoogieDeclarations]: Found specification of procedure nv_start_tx [2021-12-06 21:02:19,961 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_start_tx [2021-12-06 21:02:19,961 INFO L130 BoogieDeclarations]: Found specification of procedure netif_addr_lock [2021-12-06 21:02:19,961 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_addr_lock [2021-12-06 21:02:19,961 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-06 21:02:19,962 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-06 21:02:19,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-06 21:02:19,962 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-06 21:02:19,962 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-12-06 21:02:19,962 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-12-06 21:02:19,962 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-06 21:02:19,962 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-06 21:02:19,962 INFO L130 BoogieDeclarations]: Found specification of procedure nv_set_multicast [2021-12-06 21:02:19,962 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_set_multicast [2021-12-06 21:02:19,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_115 [2021-12-06 21:02:19,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_115 [2021-12-06 21:02:19,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-06 21:02:19,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-06 21:02:19,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_7_2 [2021-12-06 21:02:19,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_7_2 [2021-12-06 21:02:19,963 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-06 21:02:19,963 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-06 21:02:19,963 INFO L130 BoogieDeclarations]: Found specification of procedure nv_msi_workaround [2021-12-06 21:02:19,964 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_msi_workaround [2021-12-06 21:02:19,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-06 21:02:19,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-06 21:02:19,964 INFO L130 BoogieDeclarations]: Found specification of procedure nv_get_empty_tx_slots [2021-12-06 21:02:19,964 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_get_empty_tx_slots [2021-12-06 21:02:19,964 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-12-06 21:02:19,964 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-12-06 21:02:19,964 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-06 21:02:19,964 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-06 21:02:19,965 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-12-06 21:02:19,965 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-12-06 21:02:19,965 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-06 21:02:19,965 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-06 21:02:19,965 INFO L130 BoogieDeclarations]: Found specification of procedure nv_close [2021-12-06 21:02:19,965 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_close [2021-12-06 21:02:19,965 INFO L130 BoogieDeclarations]: Found specification of procedure dma_high [2021-12-06 21:02:19,965 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_high [2021-12-06 21:02:19,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_75 [2021-12-06 21:02:19,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_75 [2021-12-06 21:02:19,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_65 [2021-12-06 21:02:19,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_65 [2021-12-06 21:02:19,966 INFO L130 BoogieDeclarations]: Found specification of procedure nv_enable_hw_interrupts [2021-12-06 21:02:19,966 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_enable_hw_interrupts [2021-12-06 21:02:19,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_137 [2021-12-06 21:02:19,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_137 [2021-12-06 21:02:19,966 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-06 21:02:19,966 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-06 21:02:19,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_133 [2021-12-06 21:02:19,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_133 [2021-12-06 21:02:19,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_7 [2021-12-06 21:02:19,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_7 [2021-12-06 21:02:19,967 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-06 21:02:19,967 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-06 21:02:19,967 INFO L130 BoogieDeclarations]: Found specification of procedure nv_start_rxtx [2021-12-06 21:02:19,967 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_start_rxtx [2021-12-06 21:02:19,967 INFO L130 BoogieDeclarations]: Found specification of procedure nv_vlan_mode [2021-12-06 21:02:19,967 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_vlan_mode [2021-12-06 21:02:19,968 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-06 21:02:19,968 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-06 21:02:19,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-06 21:02:19,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-06 21:02:19,968 INFO L130 BoogieDeclarations]: Found specification of procedure init_realtek_8201 [2021-12-06 21:02:19,968 INFO L138 BoogieDeclarations]: Found implementation of procedure init_realtek_8201 [2021-12-06 21:02:19,968 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-06 21:02:19,968 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-06 21:02:19,968 INFO L130 BoogieDeclarations]: Found specification of procedure reg_delay [2021-12-06 21:02:19,969 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_delay [2021-12-06 21:02:19,969 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-12-06 21:02:19,969 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-12-06 21:02:19,969 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-06 21:02:19,969 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-06 21:02:19,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-06 21:02:19,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-06 21:02:19,969 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-06 21:02:19,969 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-06 21:02:19,969 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tailroom [2021-12-06 21:02:19,970 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tailroom [2021-12-06 21:02:19,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 21:02:19,970 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-06 21:02:19,970 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-06 21:02:19,970 INFO L130 BoogieDeclarations]: Found specification of procedure pci_push [2021-12-06 21:02:19,970 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_push [2021-12-06 21:02:19,970 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tx_timestamp [2021-12-06 21:02:19,970 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tx_timestamp [2021-12-06 21:02:19,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-12-06 21:02:19,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-12-06 21:02:19,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_103 [2021-12-06 21:02:19,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_103 [2021-12-06 21:02:19,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_106 [2021-12-06 21:02:19,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_106 [2021-12-06 21:02:19,971 INFO L130 BoogieDeclarations]: Found specification of procedure netif_schedule_queue [2021-12-06 21:02:19,971 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_schedule_queue [2021-12-06 21:02:19,971 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-06 21:02:19,971 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-06 21:02:19,971 INFO L130 BoogieDeclarations]: Found specification of procedure nv_do_stats_poll [2021-12-06 21:02:19,972 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_do_stats_poll [2021-12-06 21:02:19,972 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-06 21:02:19,972 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-06 21:02:19,972 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-06 21:02:19,972 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-06 21:02:19,972 INFO L130 BoogieDeclarations]: Found specification of procedure nv_alloc_rx_optimized [2021-12-06 21:02:19,972 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_alloc_rx_optimized [2021-12-06 21:02:19,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-06 21:02:19,972 INFO L130 BoogieDeclarations]: Found specification of procedure __napi_schedule [2021-12-06 21:02:19,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __napi_schedule [2021-12-06 21:02:19,973 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-06 21:02:19,973 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-06 21:02:19,973 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-06 21:02:19,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-06 21:02:19,973 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq_lockdep [2021-12-06 21:02:19,973 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq_lockdep [2021-12-06 21:02:19,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-06 21:02:19,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-06 21:02:19,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-06 21:02:19,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 21:02:19,974 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-06 21:02:19,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-06 21:02:19,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-06 21:02:19,974 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-06 21:02:19,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-06 21:02:19,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-06 21:02:19,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-06 21:02:19,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-06 21:02:19,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-06 21:02:19,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-06 21:02:19,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_86 [2021-12-06 21:02:19,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_86 [2021-12-06 21:02:19,975 INFO L130 BoogieDeclarations]: Found specification of procedure nv_drain_tx [2021-12-06 21:02:19,975 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_drain_tx [2021-12-06 21:02:19,975 INFO L130 BoogieDeclarations]: Found specification of procedure nv_update_stats [2021-12-06 21:02:19,975 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_update_stats [2021-12-06 21:02:19,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_1 [2021-12-06 21:02:19,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_1 [2021-12-06 21:02:19,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_2 [2021-12-06 21:02:19,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_2 [2021-12-06 21:02:19,976 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-06 21:02:19,976 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-06 21:02:19,976 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-06 21:02:19,976 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-06 21:02:19,976 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_sent_queue [2021-12-06 21:02:19,976 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_sent_queue [2021-12-06 21:02:19,976 INFO L130 BoogieDeclarations]: Found specification of procedure get_hwbase [2021-12-06 21:02:19,976 INFO L138 BoogieDeclarations]: Found implementation of procedure get_hwbase [2021-12-06 21:02:19,976 INFO L130 BoogieDeclarations]: Found specification of procedure setup_hw_rings [2021-12-06 21:02:19,976 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_hw_rings [2021-12-06 21:02:19,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-06 21:02:19,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-06 21:02:19,977 INFO L130 BoogieDeclarations]: Found specification of procedure nv_nic_irq_tx [2021-12-06 21:02:19,977 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_nic_irq_tx [2021-12-06 21:02:19,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 21:02:19,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_0 [2021-12-06 21:02:19,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_0 [2021-12-06 21:02:19,977 INFO L130 BoogieDeclarations]: Found specification of procedure nv_free_irq [2021-12-06 21:02:19,977 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_free_irq [2021-12-06 21:02:19,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-12-06 21:02:19,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-12-06 21:02:19,978 INFO L130 BoogieDeclarations]: Found specification of procedure nv_shutdown [2021-12-06 21:02:19,978 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_shutdown [2021-12-06 21:02:19,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 21:02:19,978 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-12-06 21:02:19,978 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-12-06 21:02:19,978 INFO L130 BoogieDeclarations]: Found specification of procedure nv_suspend [2021-12-06 21:02:19,978 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_suspend [2021-12-06 21:02:19,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-06 21:02:19,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-06 21:02:19,978 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-06 21:02:19,979 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-06 21:02:19,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-06 21:02:19,979 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-06 21:02:19,979 INFO L130 BoogieDeclarations]: Found specification of procedure nv_gear_backoff_reseed [2021-12-06 21:02:19,979 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_gear_backoff_reseed [2021-12-06 21:02:19,979 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-06 21:02:19,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-06 21:02:19,979 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-12-06 21:02:19,979 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-12-06 21:02:19,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_fe_priv [2021-12-06 21:02:19,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_fe_priv [2021-12-06 21:02:19,980 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_dma_map [2021-12-06 21:02:19,980 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_dma_map [2021-12-06 21:02:19,980 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-06 21:02:19,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-06 21:02:19,980 INFO L130 BoogieDeclarations]: Found specification of procedure nv_alloc_rx [2021-12-06 21:02:19,980 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_alloc_rx [2021-12-06 21:02:19,980 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2021-12-06 21:02:19,980 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2021-12-06 21:02:19,980 INFO L130 BoogieDeclarations]: Found specification of procedure nv_nic_irq_other [2021-12-06 21:02:19,980 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_nic_irq_other [2021-12-06 21:02:19,981 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-06 21:02:19,981 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-06 21:02:19,981 INFO L130 BoogieDeclarations]: Found specification of procedure nv_nic_irq_rx [2021-12-06 21:02:19,981 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_nic_irq_rx [2021-12-06 21:02:19,981 INFO L130 BoogieDeclarations]: Found specification of procedure nv_restore_mac_addr [2021-12-06 21:02:19,981 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_restore_mac_addr [2021-12-06 21:02:19,981 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-12-06 21:02:19,981 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-12-06 21:02:19,981 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-12-06 21:02:19,981 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-12-06 21:02:19,982 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-06 21:02:19,982 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-06 21:02:19,982 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-06 21:02:19,982 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-06 21:02:19,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-06 21:02:19,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-06 21:02:19,982 INFO L130 BoogieDeclarations]: Found specification of procedure nv_napi_disable [2021-12-06 21:02:19,982 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_napi_disable [2021-12-06 21:02:19,982 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_begin_bh [2021-12-06 21:02:19,982 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_begin_bh [2021-12-06 21:02:19,982 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-12-06 21:02:19,983 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-12-06 21:02:19,983 INFO L130 BoogieDeclarations]: Found specification of procedure nv_tx_timeout [2021-12-06 21:02:19,983 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_tx_timeout [2021-12-06 21:02:19,983 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-12-06 21:02:19,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-12-06 21:02:19,983 INFO L130 BoogieDeclarations]: Found specification of procedure nv_rx_process_optimized [2021-12-06 21:02:19,983 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_rx_process_optimized [2021-12-06 21:02:19,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_63 [2021-12-06 21:02:19,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_63 [2021-12-06 21:02:19,983 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-06 21:02:19,983 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-06 21:02:19,984 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-06 21:02:19,984 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-06 21:02:19,984 INFO L130 BoogieDeclarations]: Found specification of procedure nv_init_ring [2021-12-06 21:02:19,984 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_init_ring [2021-12-06 21:02:19,984 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule_prep [2021-12-06 21:02:19,984 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule_prep [2021-12-06 21:02:19,984 INFO L130 BoogieDeclarations]: Found specification of procedure nv_legacybackoff_reseed [2021-12-06 21:02:19,984 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_legacybackoff_reseed [2021-12-06 21:02:19,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 21:02:19,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 21:02:19,985 INFO L130 BoogieDeclarations]: Found specification of procedure nv_poll_controller [2021-12-06 21:02:19,985 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_poll_controller [2021-12-06 21:02:19,985 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-06 21:02:19,985 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-06 21:02:19,985 INFO L130 BoogieDeclarations]: Found specification of procedure nv_tx_done_optimized [2021-12-06 21:02:19,985 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_tx_done_optimized [2021-12-06 21:02:19,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-06 21:02:19,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-06 21:02:19,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-06 21:02:19,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-06 21:02:19,986 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-06 21:02:19,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-06 21:02:19,986 INFO L130 BoogieDeclarations]: Found specification of procedure nv_get_sset_count [2021-12-06 21:02:19,986 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_get_sset_count [2021-12-06 21:02:19,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-06 21:02:19,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-06 21:02:19,986 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-12-06 21:02:19,986 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-12-06 21:02:19,986 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-06 21:02:19,986 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-06 21:02:19,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2021-12-06 21:02:19,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2021-12-06 21:02:19,987 INFO L130 BoogieDeclarations]: Found specification of procedure nv_txrx_gate [2021-12-06 21:02:19,987 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_txrx_gate [2021-12-06 21:02:19,987 INFO L130 BoogieDeclarations]: Found specification of procedure nv_remove [2021-12-06 21:02:19,987 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_remove [2021-12-06 21:02:19,987 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-12-06 21:02:19,987 INFO L130 BoogieDeclarations]: Found specification of procedure nv_napi_enable [2021-12-06 21:02:19,987 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_napi_enable [2021-12-06 21:02:19,987 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq [2021-12-06 21:02:19,987 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq [2021-12-06 21:02:19,987 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-12-06 21:02:19,988 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-12-06 21:02:19,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-06 21:02:19,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-06 21:02:19,988 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_update_begin [2021-12-06 21:02:19,988 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_update_begin [2021-12-06 21:02:19,988 INFO L130 BoogieDeclarations]: Found specification of procedure napi_gro_receive [2021-12-06 21:02:19,988 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_gro_receive [2021-12-06 21:02:19,988 INFO L130 BoogieDeclarations]: Found specification of procedure free_rings [2021-12-06 21:02:19,988 INFO L138 BoogieDeclarations]: Found implementation of procedure free_rings [2021-12-06 21:02:19,988 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-06 21:02:19,989 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-06 21:02:19,989 INFO L130 BoogieDeclarations]: Found specification of procedure nv_txrx_reset [2021-12-06 21:02:19,989 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_txrx_reset [2021-12-06 21:02:19,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-06 21:02:19,989 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-06 21:02:19,989 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-12-06 21:02:19,989 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-12-06 21:02:19,989 INFO L130 BoogieDeclarations]: Found specification of procedure nv_do_nic_poll [2021-12-06 21:02:19,989 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_do_nic_poll [2021-12-06 21:02:19,989 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msix [2021-12-06 21:02:19,989 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msix [2021-12-06 21:02:19,989 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-06 21:02:19,989 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-06 21:02:19,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-12-06 21:02:19,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-12-06 21:02:19,989 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-12-06 21:02:19,989 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-12-06 21:02:19,990 INFO L130 BoogieDeclarations]: Found specification of procedure nv_resume [2021-12-06 21:02:19,990 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_resume [2021-12-06 21:02:19,990 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2021-12-06 21:02:19,990 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2021-12-06 21:02:19,990 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-12-06 21:02:19,990 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-12-06 21:02:19,990 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies [2021-12-06 21:02:19,990 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies [2021-12-06 21:02:19,990 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-06 21:02:19,990 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-06 21:02:19,990 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-12-06 21:02:19,990 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-12-06 21:02:19,990 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-12-06 21:02:19,990 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-12-06 21:02:19,990 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 21:02:19,990 INFO L130 BoogieDeclarations]: Found specification of procedure mii_rw [2021-12-06 21:02:19,990 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_rw [2021-12-06 21:02:19,991 INFO L130 BoogieDeclarations]: Found specification of procedure set_msix_vector_map [2021-12-06 21:02:19,991 INFO L138 BoogieDeclarations]: Found implementation of procedure set_msix_vector_map [2021-12-06 21:02:19,991 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-06 21:02:19,991 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-06 21:02:19,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_74 [2021-12-06 21:02:19,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_74 [2021-12-06 21:02:19,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-06 21:02:19,991 INFO L130 BoogieDeclarations]: Found specification of procedure nv_set_loopback [2021-12-06 21:02:19,991 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_set_loopback [2021-12-06 21:02:19,991 INFO L130 BoogieDeclarations]: Found specification of procedure nv_mac_reset [2021-12-06 21:02:19,991 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_mac_reset [2021-12-06 21:02:19,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-06 21:02:19,991 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_completed_queue [2021-12-06 21:02:19,991 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_completed_queue [2021-12-06 21:02:19,991 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-06 21:02:19,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-06 21:02:19,991 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-12-06 21:02:19,991 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-12-06 21:02:19,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-12-06 21:02:19,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-12-06 21:02:19,992 INFO L130 BoogieDeclarations]: Found specification of procedure nv_tx_done [2021-12-06 21:02:19,992 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_tx_done [2021-12-06 21:02:19,992 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-12-06 21:02:19,992 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-12-06 21:02:19,992 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-06 21:02:19,992 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-06 21:02:19,992 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-06 21:02:19,992 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-06 21:02:19,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-12-06 21:02:19,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-12-06 21:02:19,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-06 21:02:19,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-06 21:02:19,992 INFO L130 BoogieDeclarations]: Found specification of procedure get_random_bytes [2021-12-06 21:02:19,992 INFO L138 BoogieDeclarations]: Found implementation of procedure get_random_bytes [2021-12-06 21:02:19,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_12_2 [2021-12-06 21:02:19,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_12_2 [2021-12-06 21:02:19,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-12-06 21:02:19,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-12-06 21:02:19,993 INFO L130 BoogieDeclarations]: Found specification of procedure nv_linkchange [2021-12-06 21:02:19,993 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_linkchange [2021-12-06 21:02:19,993 INFO L130 BoogieDeclarations]: Found specification of procedure nv_disable_hw_interrupts [2021-12-06 21:02:19,993 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_disable_hw_interrupts [2021-12-06 21:02:19,993 INFO L130 BoogieDeclarations]: Found specification of procedure set_bufsize [2021-12-06 21:02:19,993 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bufsize [2021-12-06 21:02:19,993 INFO L130 BoogieDeclarations]: Found specification of procedure phy_init [2021-12-06 21:02:19,993 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_init [2021-12-06 21:02:19,993 INFO L130 BoogieDeclarations]: Found specification of procedure dma_low [2021-12-06 21:02:19,993 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_low [2021-12-06 21:02:19,993 INFO L130 BoogieDeclarations]: Found specification of procedure nv_copy_mac_to_hw [2021-12-06 21:02:19,993 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_copy_mac_to_hw [2021-12-06 21:02:19,993 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-06 21:02:19,993 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-06 21:02:19,993 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-06 21:02:19,993 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-06 21:02:19,994 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-12-06 21:02:19,994 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-12-06 21:02:19,994 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-12-06 21:02:19,994 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-12-06 21:02:19,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_76 [2021-12-06 21:02:19,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_76 [2021-12-06 21:02:19,994 INFO L130 BoogieDeclarations]: Found specification of procedure nv_stop_tx [2021-12-06 21:02:19,994 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_stop_tx [2021-12-06 21:02:19,994 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_lock_bh [2021-12-06 21:02:19,994 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_lock_bh [2021-12-06 21:02:19,994 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-06 21:02:19,994 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-06 21:02:19,994 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_unlock_bh [2021-12-06 21:02:19,994 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_unlock_bh [2021-12-06 21:02:19,994 INFO L130 BoogieDeclarations]: Found specification of procedure nv_force_linkspeed [2021-12-06 21:02:19,994 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_force_linkspeed [2021-12-06 21:02:19,994 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-06 21:02:19,995 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-06 21:02:19,995 INFO L130 BoogieDeclarations]: Found specification of procedure nv_update_pause [2021-12-06 21:02:19,995 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_update_pause [2021-12-06 21:02:19,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 21:02:19,995 INFO L130 BoogieDeclarations]: Found specification of procedure nv_init_tx [2021-12-06 21:02:19,995 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_init_tx [2021-12-06 21:02:19,995 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2021-12-06 21:02:19,995 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2021-12-06 21:02:19,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-06 21:02:19,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-06 21:02:19,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_62 [2021-12-06 21:02:19,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_62 [2021-12-06 21:02:19,995 INFO L130 BoogieDeclarations]: Found specification of procedure nv_enable_irq [2021-12-06 21:02:19,995 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_enable_irq [2021-12-06 21:02:19,995 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2021-12-06 21:02:19,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2021-12-06 21:02:19,995 INFO L130 BoogieDeclarations]: Found specification of procedure nv_unmap_txskb [2021-12-06 21:02:19,995 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_unmap_txskb [2021-12-06 21:02:19,995 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq [2021-12-06 21:02:19,996 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq [2021-12-06 21:02:19,996 INFO L130 BoogieDeclarations]: Found specification of procedure nv_stop_rx [2021-12-06 21:02:19,996 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_stop_rx [2021-12-06 21:02:19,996 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_retry_bh [2021-12-06 21:02:19,996 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_retry_bh [2021-12-06 21:02:19,996 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-06 21:02:19,996 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-06 21:02:19,996 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-12-06 21:02:19,996 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-12-06 21:02:19,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_78 [2021-12-06 21:02:19,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_78 [2021-12-06 21:02:19,996 INFO L130 BoogieDeclarations]: Found specification of procedure nv_getlen [2021-12-06 21:02:19,996 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_getlen [2021-12-06 21:02:19,996 INFO L130 BoogieDeclarations]: Found specification of procedure nv_link_irq [2021-12-06 21:02:19,996 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_link_irq [2021-12-06 21:02:19,996 INFO L130 BoogieDeclarations]: Found specification of procedure nv_optimized [2021-12-06 21:02:19,996 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_optimized [2021-12-06 21:02:19,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_fe_priv [2021-12-06 21:02:19,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_fe_priv [2021-12-06 21:02:19,997 INFO L130 BoogieDeclarations]: Found specification of procedure nv_stop_rxtx [2021-12-06 21:02:19,997 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_stop_rxtx [2021-12-06 21:02:19,997 INFO L130 BoogieDeclarations]: Found specification of procedure nv_update_linkspeed [2021-12-06 21:02:19,997 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_update_linkspeed [2021-12-06 21:02:19,997 INFO L130 BoogieDeclarations]: Found specification of procedure using_multi_irqs [2021-12-06 21:02:19,997 INFO L138 BoogieDeclarations]: Found implementation of procedure using_multi_irqs [2021-12-06 21:02:19,997 INFO L130 BoogieDeclarations]: Found specification of procedure netif_addr_unlock [2021-12-06 21:02:19,997 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_addr_unlock [2021-12-06 21:02:19,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-06 21:02:19,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-06 21:02:19,997 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-12-06 21:02:19,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-12-06 21:02:19,997 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-12-06 21:02:19,997 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-12-06 21:02:19,997 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2021-12-06 21:02:19,997 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2021-12-06 21:02:19,997 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq_lockdep [2021-12-06 21:02:19,997 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq_lockdep [2021-12-06 21:02:19,998 INFO L130 BoogieDeclarations]: Found specification of procedure nv_disable_irq [2021-12-06 21:02:19,998 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_disable_irq [2021-12-06 21:02:19,998 INFO L130 BoogieDeclarations]: Found specification of procedure nv_open [2021-12-06 21:02:19,998 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_open [2021-12-06 21:02:19,998 INFO L130 BoogieDeclarations]: Found specification of procedure nv_start_rx [2021-12-06 21:02:19,998 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_start_rx [2021-12-06 21:02:19,998 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-06 21:02:19,998 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-06 21:02:19,998 INFO L130 BoogieDeclarations]: Found specification of procedure phy_reset [2021-12-06 21:02:19,998 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_reset [2021-12-06 21:02:19,998 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-12-06 21:02:19,998 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-12-06 21:02:19,998 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-06 21:02:19,998 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-06 21:02:19,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 21:02:19,998 INFO L130 BoogieDeclarations]: Found specification of procedure get_nvpriv [2021-12-06 21:02:19,998 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nvpriv [2021-12-06 21:02:19,998 INFO L130 BoogieDeclarations]: Found specification of procedure nv_request_irq [2021-12-06 21:02:19,999 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_request_irq [2021-12-06 21:02:19,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-06 21:02:19,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-06 21:02:19,999 INFO L130 BoogieDeclarations]: Found specification of procedure nv_get_regs_len [2021-12-06 21:02:19,999 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_get_regs_len [2021-12-06 21:02:20,831 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 21:02:20,837 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 21:02:21,455 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-06 21:13:28,777 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 21:13:28,803 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 21:13:28,803 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-12-06 21:13:28,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 09:13:28 BoogieIcfgContainer [2021-12-06 21:13:28,809 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 21:13:28,810 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 21:13:28,810 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 21:13:28,813 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 21:13:28,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 09:02:14" (1/3) ... [2021-12-06 21:13:28,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@635bf171 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 09:13:28, skipping insertion in model container [2021-12-06 21:13:28,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:02:19" (2/3) ... [2021-12-06 21:13:28,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@635bf171 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 09:13:28, skipping insertion in model container [2021-12-06 21:13:28,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 09:13:28" (3/3) ... [2021-12-06 21:13:28,816 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-nvidia-forcedeth.cil.i [2021-12-06 21:13:28,821 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 21:13:28,821 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-12-06 21:13:28,890 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 21:13:28,897 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 21:13:28,897 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-12-06 21:13:29,000 INFO L276 IsEmpty]: Start isEmpty. Operand has 4955 states, 3095 states have (on average 1.2904684975767367) internal successors, (3994), 3237 states have internal predecessors, (3994), 1630 states have call successors, (1630), 226 states have call predecessors, (1630), 225 states have return successors, (1621), 1587 states have call predecessors, (1621), 1621 states have call successors, (1621) [2021-12-06 21:13:29,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-12-06 21:13:29,007 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:13:29,008 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] [2021-12-06 21:13:29,008 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-06 21:13:29,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:13:29,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1030422689, now seen corresponding path program 1 times [2021-12-06 21:13:29,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:13:29,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298623574] [2021-12-06 21:13:29,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:13:29,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:13:29,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:30,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 21:13:30,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:30,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 21:13:30,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:30,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 21:13:30,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:30,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 21:13:30,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:30,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 21:13:30,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:30,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 21:13:30,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:30,588 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-06 21:13:30,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:13:30,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298623574] [2021-12-06 21:13:30,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298623574] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:13:30,589 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:13:30,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 21:13:30,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869222098] [2021-12-06 21:13:30,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:13:30,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 21:13:30,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:13:30,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 21:13:30,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 21:13:30,624 INFO L87 Difference]: Start difference. First operand has 4955 states, 3095 states have (on average 1.2904684975767367) internal successors, (3994), 3237 states have internal predecessors, (3994), 1630 states have call successors, (1630), 226 states have call predecessors, (1630), 225 states have return successors, (1621), 1587 states have call predecessors, (1621), 1621 states have call successors, (1621) 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) [2021-12-06 21:13:31,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:13:31,206 INFO L93 Difference]: Finished difference Result 9879 states and 14737 transitions. [2021-12-06 21:13:31,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 21:13:31,209 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 [2021-12-06 21:13:31,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:13:31,260 INFO L225 Difference]: With dead ends: 9879 [2021-12-06 21:13:31,260 INFO L226 Difference]: Without dead ends: 4934 [2021-12-06 21:13:31,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-06 21:13:31,301 INFO L933 BasicCegarLoop]: 7176 mSDtfsCounter, 7140 mSDsluCounter, 14365 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7153 SdHoareTripleChecker+Valid, 21541 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 21:13:31,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7153 Valid, 21541 Invalid, 23 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 21:13:31,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4934 states. [2021-12-06 21:13:31,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4934 to 4932. [2021-12-06 21:13:31,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4932 states, 3078 states have (on average 1.2774528914879792) internal successors, (3932), 3214 states have internal predecessors, (3932), 1621 states have call successors, (1621), 230 states have call predecessors, (1621), 229 states have return successors, (1618), 1584 states have call predecessors, (1618), 1618 states have call successors, (1618) [2021-12-06 21:13:31,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4932 states to 4932 states and 7171 transitions. [2021-12-06 21:13:31,670 INFO L78 Accepts]: Start accepts. Automaton has 4932 states and 7171 transitions. Word has length 48 [2021-12-06 21:13:31,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:13:31,671 INFO L470 AbstractCegarLoop]: Abstraction has 4932 states and 7171 transitions. [2021-12-06 21:13:31,671 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) [2021-12-06 21:13:31,671 INFO L276 IsEmpty]: Start isEmpty. Operand 4932 states and 7171 transitions. [2021-12-06 21:13:31,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-12-06 21:13:31,673 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:13:31,674 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] [2021-12-06 21:13:31,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 21:13:31,674 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-06 21:13:31,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:13:31,674 INFO L85 PathProgramCache]: Analyzing trace with hash -363327209, now seen corresponding path program 1 times [2021-12-06 21:13:31,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:13:31,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107917879] [2021-12-06 21:13:31,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:13:31,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:13:32,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:32,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 21:13:32,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:32,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 21:13:32,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:32,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 21:13:32,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:32,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 21:13:32,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:32,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 21:13:32,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:32,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 21:13:32,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:32,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-06 21:13:32,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:32,815 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-06 21:13:32,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:13:32,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107917879] [2021-12-06 21:13:32,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107917879] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:13:32,816 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:13:32,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 21:13:32,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045713822] [2021-12-06 21:13:32,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:13:32,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 21:13:32,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:13:32,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 21:13:32,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 21:13:32,818 INFO L87 Difference]: Start difference. First operand 4932 states and 7171 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) [2021-12-06 21:13:33,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:13:33,528 INFO L93 Difference]: Finished difference Result 9737 states and 14205 transitions. [2021-12-06 21:13:33,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 21:13:33,528 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 [2021-12-06 21:13:33,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:13:33,604 INFO L225 Difference]: With dead ends: 9737 [2021-12-06 21:13:33,604 INFO L226 Difference]: Without dead ends: 9735 [2021-12-06 21:13:33,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-06 21:13:33,615 INFO L933 BasicCegarLoop]: 8893 mSDtfsCounter, 7067 mSDsluCounter, 24837 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7078 SdHoareTripleChecker+Valid, 33730 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 21:13:33,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7078 Valid, 33730 Invalid, 25 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 21:13:33,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9735 states. [2021-12-06 21:13:34,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9735 to 9725. [2021-12-06 21:13:34,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9725 states, 6104 states have (on average 1.2783420707732633) internal successors, (7803), 6371 states have internal predecessors, (7803), 3162 states have call successors, (3162), 458 states have call predecessors, (3162), 455 states have return successors, (3232), 3080 states have call predecessors, (3232), 3156 states have call successors, (3232) [2021-12-06 21:13:34,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9725 states to 9725 states and 14197 transitions. [2021-12-06 21:13:34,197 INFO L78 Accepts]: Start accepts. Automaton has 9725 states and 14197 transitions. Word has length 53 [2021-12-06 21:13:34,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:13:34,198 INFO L470 AbstractCegarLoop]: Abstraction has 9725 states and 14197 transitions. [2021-12-06 21:13:34,198 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) [2021-12-06 21:13:34,198 INFO L276 IsEmpty]: Start isEmpty. Operand 9725 states and 14197 transitions. [2021-12-06 21:13:34,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-12-06 21:13:34,201 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:13:34,201 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] [2021-12-06 21:13:34,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 21:13:34,202 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-06 21:13:34,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:13:34,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1626368543, now seen corresponding path program 1 times [2021-12-06 21:13:34,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:13:34,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250979392] [2021-12-06 21:13:34,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:13:34,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:13:34,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:35,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 21:13:35,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:35,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 21:13:35,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:35,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 21:13:35,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:35,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 21:13:35,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:35,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 21:13:35,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:35,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 21:13:35,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:35,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-06 21:13:35,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:35,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-06 21:13:35,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:35,221 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-06 21:13:35,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:13:35,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250979392] [2021-12-06 21:13:35,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250979392] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:13:35,222 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:13:35,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 21:13:35,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067020166] [2021-12-06 21:13:35,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:13:35,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 21:13:35,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:13:35,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 21:13:35,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 21:13:35,224 INFO L87 Difference]: Start difference. First operand 9725 states and 14197 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) [2021-12-06 21:13:35,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:13:35,729 INFO L93 Difference]: Finished difference Result 9735 states and 14206 transitions. [2021-12-06 21:13:35,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 21:13:35,730 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 [2021-12-06 21:13:35,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:13:35,808 INFO L225 Difference]: With dead ends: 9735 [2021-12-06 21:13:35,808 INFO L226 Difference]: Without dead ends: 9733 [2021-12-06 21:13:35,814 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-06 21:13:35,816 INFO L933 BasicCegarLoop]: 7156 mSDtfsCounter, 7127 mSDsluCounter, 14292 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7137 SdHoareTripleChecker+Valid, 21448 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 21:13:35,816 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7137 Valid, 21448 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 21:13:35,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9733 states. [2021-12-06 21:13:36,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9733 to 9733. [2021-12-06 21:13:36,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9733 states, 6110 states have (on average 1.2780687397708674) internal successors, (7809), 6377 states have internal predecessors, (7809), 3162 states have call successors, (3162), 460 states have call predecessors, (3162), 457 states have return successors, (3232), 3080 states have call predecessors, (3232), 3156 states have call successors, (3232) [2021-12-06 21:13:36,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9733 states to 9733 states and 14203 transitions. [2021-12-06 21:13:36,453 INFO L78 Accepts]: Start accepts. Automaton has 9733 states and 14203 transitions. Word has length 58 [2021-12-06 21:13:36,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:13:36,454 INFO L470 AbstractCegarLoop]: Abstraction has 9733 states and 14203 transitions. [2021-12-06 21:13:36,455 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) [2021-12-06 21:13:36,455 INFO L276 IsEmpty]: Start isEmpty. Operand 9733 states and 14203 transitions. [2021-12-06 21:13:36,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-12-06 21:13:36,457 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:13:36,457 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] [2021-12-06 21:13:36,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 21:13:36,458 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-06 21:13:36,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:13:36,458 INFO L85 PathProgramCache]: Analyzing trace with hash 913018327, now seen corresponding path program 1 times [2021-12-06 21:13:36,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:13:36,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111893044] [2021-12-06 21:13:36,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:13:36,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:13:36,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:37,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 21:13:37,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:37,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 21:13:37,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:37,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 21:13:37,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:37,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 21:13:37,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:37,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 21:13:37,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:37,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 21:13:37,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:37,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-06 21:13:37,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:37,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-06 21:13:37,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:37,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 21:13:37,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:37,423 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-12-06 21:13:37,423 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:13:37,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111893044] [2021-12-06 21:13:37,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111893044] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:13:37,423 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:13:37,423 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 21:13:37,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212291527] [2021-12-06 21:13:37,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:13:37,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 21:13:37,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:13:37,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 21:13:37,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 21:13:37,425 INFO L87 Difference]: Start difference. First operand 9733 states and 14203 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) [2021-12-06 21:13:38,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:13:38,265 INFO L93 Difference]: Finished difference Result 19401 states and 28757 transitions. [2021-12-06 21:13:38,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 21:13:38,266 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 [2021-12-06 21:13:38,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:13:38,394 INFO L225 Difference]: With dead ends: 19401 [2021-12-06 21:13:38,394 INFO L226 Difference]: Without dead ends: 19399 [2021-12-06 21:13:38,408 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-06 21:13:38,409 INFO L933 BasicCegarLoop]: 8933 mSDtfsCounter, 7179 mSDsluCounter, 25031 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7188 SdHoareTripleChecker+Valid, 33964 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 21:13:38,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7188 Valid, 33964 Invalid, 26 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 21:13:38,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19399 states. [2021-12-06 21:13:39,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19399 to 19387. [2021-12-06 21:13:39,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19387 states, 12174 states have (on average 1.278955150320355) internal successors, (15570), 12706 states have internal predecessors, (15570), 6299 states have call successors, (6299), 920 states have call predecessors, (6299), 910 states have return successors, (6877), 6127 states have call predecessors, (6877), 6287 states have call successors, (6877) [2021-12-06 21:13:39,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19387 states to 19387 states and 28746 transitions. [2021-12-06 21:13:39,418 INFO L78 Accepts]: Start accepts. Automaton has 19387 states and 28746 transitions. Word has length 63 [2021-12-06 21:13:39,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:13:39,419 INFO L470 AbstractCegarLoop]: Abstraction has 19387 states and 28746 transitions. [2021-12-06 21:13:39,419 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) [2021-12-06 21:13:39,419 INFO L276 IsEmpty]: Start isEmpty. Operand 19387 states and 28746 transitions. [2021-12-06 21:13:39,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-12-06 21:13:39,421 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:13:39,421 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] [2021-12-06 21:13:39,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 21:13:39,421 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-06 21:13:39,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:13:39,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1987636001, now seen corresponding path program 1 times [2021-12-06 21:13:39,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:13:39,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456531912] [2021-12-06 21:13:39,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:13:39,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:13:39,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:40,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 21:13:40,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:40,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 21:13:40,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:40,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 21:13:40,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:40,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 21:13:40,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:40,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 21:13:40,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:40,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 21:13:40,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:40,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-06 21:13:40,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:40,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-06 21:13:40,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:40,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 21:13:40,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:40,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-06 21:13:40,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:40,325 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-12-06 21:13:40,325 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:13:40,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456531912] [2021-12-06 21:13:40,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456531912] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:13:40,325 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:13:40,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 21:13:40,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972446350] [2021-12-06 21:13:40,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:13:40,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 21:13:40,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:13:40,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 21:13:40,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 21:13:40,326 INFO L87 Difference]: Start difference. First operand 19387 states and 28746 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) [2021-12-06 21:13:40,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:13:40,898 INFO L93 Difference]: Finished difference Result 19405 states and 28763 transitions. [2021-12-06 21:13:40,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 21:13:40,899 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 [2021-12-06 21:13:40,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:13:40,984 INFO L225 Difference]: With dead ends: 19405 [2021-12-06 21:13:40,984 INFO L226 Difference]: Without dead ends: 19403 [2021-12-06 21:13:40,996 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-06 21:13:40,997 INFO L933 BasicCegarLoop]: 7156 mSDtfsCounter, 7127 mSDsluCounter, 14292 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7135 SdHoareTripleChecker+Valid, 21448 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 21:13:40,997 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7135 Valid, 21448 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 21:13:41,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19403 states. [2021-12-06 21:13:41,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19403 to 19403. [2021-12-06 21:13:41,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19403 states, 12186 states have (on average 1.2786804529788283) internal successors, (15582), 12718 states have internal predecessors, (15582), 6299 states have call successors, (6299), 924 states have call predecessors, (6299), 914 states have return successors, (6877), 6127 states have call predecessors, (6877), 6287 states have call successors, (6877) [2021-12-06 21:13:41,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19403 states to 19403 states and 28758 transitions. [2021-12-06 21:13:41,902 INFO L78 Accepts]: Start accepts. Automaton has 19403 states and 28758 transitions. Word has length 68 [2021-12-06 21:13:41,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:13:41,903 INFO L470 AbstractCegarLoop]: Abstraction has 19403 states and 28758 transitions. [2021-12-06 21:13:41,903 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) [2021-12-06 21:13:41,903 INFO L276 IsEmpty]: Start isEmpty. Operand 19403 states and 28758 transitions. [2021-12-06 21:13:41,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-12-06 21:13:41,904 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:13:41,904 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:13:41,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 21:13:41,905 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-06 21:13:41,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:13:41,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1335093153, now seen corresponding path program 1 times [2021-12-06 21:13:41,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:13:41,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825559622] [2021-12-06 21:13:41,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:13:41,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:13:42,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:42,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 21:13:42,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:42,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 21:13:42,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:42,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 21:13:42,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:42,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 21:13:42,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:42,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 21:13:42,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:42,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 21:13:42,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:42,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-06 21:13:42,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:42,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-06 21:13:42,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:42,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-06 21:13:42,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:42,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-06 21:13:42,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:42,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-06 21:13:42,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:42,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-06 21:13:42,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:42,887 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2021-12-06 21:13:42,887 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:13:42,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825559622] [2021-12-06 21:13:42,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825559622] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:13:42,888 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:13:42,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 21:13:42,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080280940] [2021-12-06 21:13:42,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:13:42,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 21:13:42,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:13:42,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 21:13:42,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 21:13:42,889 INFO L87 Difference]: Start difference. First operand 19403 states and 28758 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, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-06 21:13:43,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:13:43,462 INFO L93 Difference]: Finished difference Result 19421 states and 28775 transitions. [2021-12-06 21:13:43,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 21:13:43,462 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, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 86 [2021-12-06 21:13:43,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:13:43,553 INFO L225 Difference]: With dead ends: 19421 [2021-12-06 21:13:43,553 INFO L226 Difference]: Without dead ends: 19419 [2021-12-06 21:13:43,567 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-06 21:13:43,568 INFO L933 BasicCegarLoop]: 7156 mSDtfsCounter, 7117 mSDsluCounter, 14292 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7124 SdHoareTripleChecker+Valid, 21448 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 21:13:43,568 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7124 Valid, 21448 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 21:13:43,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19419 states. [2021-12-06 21:13:44,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19419 to 19419. [2021-12-06 21:13:44,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19419 states, 12198 states have (on average 1.2784062961141172) internal successors, (15594), 12730 states have internal predecessors, (15594), 6299 states have call successors, (6299), 928 states have call predecessors, (6299), 918 states have return successors, (6877), 6127 states have call predecessors, (6877), 6287 states have call successors, (6877) [2021-12-06 21:13:44,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19419 states to 19419 states and 28770 transitions. [2021-12-06 21:13:44,454 INFO L78 Accepts]: Start accepts. Automaton has 19419 states and 28770 transitions. Word has length 86 [2021-12-06 21:13:44,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:13:44,454 INFO L470 AbstractCegarLoop]: Abstraction has 19419 states and 28770 transitions. [2021-12-06 21:13:44,455 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, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-06 21:13:44,455 INFO L276 IsEmpty]: Start isEmpty. Operand 19419 states and 28770 transitions. [2021-12-06 21:13:44,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-12-06 21:13:44,455 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:13:44,456 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 6, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:13:44,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 21:13:44,456 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-06 21:13:44,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:13:44,456 INFO L85 PathProgramCache]: Analyzing trace with hash 457768863, now seen corresponding path program 1 times [2021-12-06 21:13:44,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:13:44,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673084063] [2021-12-06 21:13:44,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:13:44,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:13:44,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:45,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 21:13:45,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:45,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 21:13:45,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:45,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 21:13:45,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:45,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 21:13:45,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:45,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 21:13:45,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:45,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 21:13:45,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:45,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-06 21:13:45,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:45,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-06 21:13:45,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:45,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 21:13:45,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:45,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-06 21:13:45,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:45,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-06 21:13:45,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:45,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-06 21:13:45,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:45,284 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-12-06 21:13:45,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:13:45,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673084063] [2021-12-06 21:13:45,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673084063] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:13:45,285 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:13:45,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 21:13:45,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074442114] [2021-12-06 21:13:45,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:13:45,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 21:13:45,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:13:45,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 21:13:45,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 21:13:45,286 INFO L87 Difference]: Start difference. First operand 19419 states and 28770 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, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-06 21:13:45,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:13:45,832 INFO L93 Difference]: Finished difference Result 19437 states and 28787 transitions. [2021-12-06 21:13:45,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 21:13:45,833 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, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 78 [2021-12-06 21:13:45,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:13:45,906 INFO L225 Difference]: With dead ends: 19437 [2021-12-06 21:13:45,906 INFO L226 Difference]: Without dead ends: 19435 [2021-12-06 21:13:45,919 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-06 21:13:45,920 INFO L933 BasicCegarLoop]: 7156 mSDtfsCounter, 7127 mSDsluCounter, 14292 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7133 SdHoareTripleChecker+Valid, 21448 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 21:13:45,920 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7133 Valid, 21448 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 21:13:45,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19435 states. [2021-12-06 21:13:46,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19435 to 19435. [2021-12-06 21:13:46,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19435 states, 12210 states have (on average 1.278132678132678) internal successors, (15606), 12742 states have internal predecessors, (15606), 6299 states have call successors, (6299), 932 states have call predecessors, (6299), 922 states have return successors, (6877), 6127 states have call predecessors, (6877), 6287 states have call successors, (6877) [2021-12-06 21:13:46,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19435 states to 19435 states and 28782 transitions. [2021-12-06 21:13:46,742 INFO L78 Accepts]: Start accepts. Automaton has 19435 states and 28782 transitions. Word has length 78 [2021-12-06 21:13:46,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:13:46,742 INFO L470 AbstractCegarLoop]: Abstraction has 19435 states and 28782 transitions. [2021-12-06 21:13:46,742 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, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-06 21:13:46,743 INFO L276 IsEmpty]: Start isEmpty. Operand 19435 states and 28782 transitions. [2021-12-06 21:13:46,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-06 21:13:46,744 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:13:46,744 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] [2021-12-06 21:13:46,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 21:13:46,744 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-06 21:13:46,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:13:46,745 INFO L85 PathProgramCache]: Analyzing trace with hash -644318433, now seen corresponding path program 1 times [2021-12-06 21:13:46,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:13:46,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279031609] [2021-12-06 21:13:46,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:13:46,746 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:13:47,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:47,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 21:13:47,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:47,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 21:13:47,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:47,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 21:13:47,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:47,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 21:13:47,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:47,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 21:13:47,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:47,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 21:13:47,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:47,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-06 21:13:47,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:47,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-06 21:13:47,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:47,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-06 21:13:47,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:47,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-06 21:13:47,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:47,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-06 21:13:47,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:47,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-06 21:13:47,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:47,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 21:13:47,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:47,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-06 21:13:47,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:47,629 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-12-06 21:13:47,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:13:47,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279031609] [2021-12-06 21:13:47,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279031609] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:13:47,630 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:13:47,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 21:13:47,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690106269] [2021-12-06 21:13:47,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:13:47,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 21:13:47,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:13:47,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 21:13:47,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 21:13:47,631 INFO L87 Difference]: Start difference. First operand 19435 states and 28782 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) [2021-12-06 21:13:48,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:13:48,438 INFO L93 Difference]: Finished difference Result 30316 states and 44859 transitions. [2021-12-06 21:13:48,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 21:13:48,439 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 [2021-12-06 21:13:48,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:13:48,541 INFO L225 Difference]: With dead ends: 30316 [2021-12-06 21:13:48,541 INFO L226 Difference]: Without dead ends: 30314 [2021-12-06 21:13:48,556 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 [2021-12-06 21:13:48,557 INFO L933 BasicCegarLoop]: 9259 mSDtfsCounter, 6360 mSDsluCounter, 25104 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6365 SdHoareTripleChecker+Valid, 34363 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 21:13:48,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6365 Valid, 34363 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 21:13:48,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30314 states. [2021-12-06 21:13:49,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30314 to 30298. [2021-12-06 21:13:49,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30298 states, 19114 states have (on average 1.2750863241603014) internal successors, (24372), 19974 states have internal predecessors, (24372), 9613 states have call successors, (9613), 1596 states have call predecessors, (9613), 1567 states have return successors, (10857), 9281 states have call predecessors, (10857), 9595 states have call successors, (10857) [2021-12-06 21:13:49,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30298 states to 30298 states and 44842 transitions. [2021-12-06 21:13:49,835 INFO L78 Accepts]: Start accepts. Automaton has 30298 states and 44842 transitions. Word has length 96 [2021-12-06 21:13:49,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:13:49,836 INFO L470 AbstractCegarLoop]: Abstraction has 30298 states and 44842 transitions. [2021-12-06 21:13:49,836 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) [2021-12-06 21:13:49,836 INFO L276 IsEmpty]: Start isEmpty. Operand 30298 states and 44842 transitions. [2021-12-06 21:13:49,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-12-06 21:13:49,837 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:13:49,837 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] [2021-12-06 21:13:49,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-06 21:13:49,837 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-06 21:13:49,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:13:49,838 INFO L85 PathProgramCache]: Analyzing trace with hash -373845097, now seen corresponding path program 1 times [2021-12-06 21:13:49,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:13:49,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381697368] [2021-12-06 21:13:49,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:13:49,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:13:50,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:50,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 21:13:50,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:50,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 21:13:50,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:50,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 21:13:50,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:50,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 21:13:50,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:50,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 21:13:50,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:50,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 21:13:50,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:50,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-06 21:13:50,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:50,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-06 21:13:50,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:50,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-06 21:13:50,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:50,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-06 21:13:50,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:50,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-06 21:13:50,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:50,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-06 21:13:50,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:50,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 21:13:50,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:50,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-06 21:13:50,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:50,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-06 21:13:50,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:50,658 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2021-12-06 21:13:50,658 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:13:50,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381697368] [2021-12-06 21:13:50,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381697368] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:13:50,658 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:13:50,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 21:13:50,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602649105] [2021-12-06 21:13:50,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:13:50,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 21:13:50,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:13:50,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 21:13:50,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 21:13:50,659 INFO L87 Difference]: Start difference. First operand 30298 states and 44842 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) [2021-12-06 21:13:51,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:13:51,500 INFO L93 Difference]: Finished difference Result 30324 states and 44867 transitions. [2021-12-06 21:13:51,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 21:13:51,500 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 [2021-12-06 21:13:51,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:13:51,594 INFO L225 Difference]: With dead ends: 30324 [2021-12-06 21:13:51,594 INFO L226 Difference]: Without dead ends: 30322 [2021-12-06 21:13:51,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-06 21:13:51,606 INFO L933 BasicCegarLoop]: 7156 mSDtfsCounter, 7117 mSDsluCounter, 14292 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7121 SdHoareTripleChecker+Valid, 21448 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 21:13:51,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7121 Valid, 21448 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 21:13:51,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30322 states. [2021-12-06 21:13:52,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30322 to 30322. [2021-12-06 21:13:52,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30322 states, 19132 states have (on average 1.2748275141124816) internal successors, (24390), 19992 states have internal predecessors, (24390), 9613 states have call successors, (9613), 1602 states have call predecessors, (9613), 1573 states have return successors, (10857), 9281 states have call predecessors, (10857), 9595 states have call successors, (10857) [2021-12-06 21:13:52,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30322 states to 30322 states and 44860 transitions. [2021-12-06 21:13:52,990 INFO L78 Accepts]: Start accepts. Automaton has 30322 states and 44860 transitions. Word has length 101 [2021-12-06 21:13:52,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:13:52,990 INFO L470 AbstractCegarLoop]: Abstraction has 30322 states and 44860 transitions. [2021-12-06 21:13:52,991 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) [2021-12-06 21:13:52,991 INFO L276 IsEmpty]: Start isEmpty. Operand 30322 states and 44860 transitions. [2021-12-06 21:13:52,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-06 21:13:52,992 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:13:52,992 INFO L514 BasicCegarLoop]: trace histogram [10, 9, 9, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:13:52,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-06 21:13:52,992 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-06 21:13:52,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:13:52,993 INFO L85 PathProgramCache]: Analyzing trace with hash -701882913, now seen corresponding path program 1 times [2021-12-06 21:13:52,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:13:52,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345837281] [2021-12-06 21:13:52,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:13:52,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:13:53,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:53,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 21:13:53,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:53,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 21:13:53,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:53,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 21:13:53,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:53,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 21:13:53,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:53,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 21:13:53,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:53,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 21:13:53,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:53,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-06 21:13:53,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:53,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-06 21:13:53,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:53,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-06 21:13:53,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:53,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-06 21:13:53,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:53,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-06 21:13:53,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:53,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-06 21:13:53,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:53,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 21:13:53,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:53,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-06 21:13:53,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:53,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-06 21:13:53,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:53,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-06 21:13:53,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:53,937 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2021-12-06 21:13:53,937 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:13:53,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345837281] [2021-12-06 21:13:53,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345837281] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:13:53,938 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:13:53,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 21:13:53,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830714292] [2021-12-06 21:13:53,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:13:53,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 21:13:53,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:13:53,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 21:13:53,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 21:13:53,939 INFO L87 Difference]: Start difference. First operand 30322 states and 44860 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, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-06 21:13:54,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:13:54,766 INFO L93 Difference]: Finished difference Result 30348 states and 44885 transitions. [2021-12-06 21:13:54,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 21:13:54,767 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, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 106 [2021-12-06 21:13:54,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:13:54,882 INFO L225 Difference]: With dead ends: 30348 [2021-12-06 21:13:54,882 INFO L226 Difference]: Without dead ends: 30346 [2021-12-06 21:13:54,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-06 21:13:54,903 INFO L933 BasicCegarLoop]: 7156 mSDtfsCounter, 7117 mSDsluCounter, 14292 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7120 SdHoareTripleChecker+Valid, 21448 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 21:13:54,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7120 Valid, 21448 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 21:13:54,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30346 states. [2021-12-06 21:13:56,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30346 to 30346. [2021-12-06 21:13:56,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30346 states, 19150 states have (on average 1.274569190600522) internal successors, (24408), 20010 states have internal predecessors, (24408), 9613 states have call successors, (9613), 1608 states have call predecessors, (9613), 1579 states have return successors, (10857), 9281 states have call predecessors, (10857), 9595 states have call successors, (10857) [2021-12-06 21:13:56,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30346 states to 30346 states and 44878 transitions. [2021-12-06 21:13:56,339 INFO L78 Accepts]: Start accepts. Automaton has 30346 states and 44878 transitions. Word has length 106 [2021-12-06 21:13:56,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:13:56,339 INFO L470 AbstractCegarLoop]: Abstraction has 30346 states and 44878 transitions. [2021-12-06 21:13:56,339 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, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-06 21:13:56,339 INFO L276 IsEmpty]: Start isEmpty. Operand 30346 states and 44878 transitions. [2021-12-06 21:13:56,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-06 21:13:56,340 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:13:56,341 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] [2021-12-06 21:13:56,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-06 21:13:56,341 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-06 21:13:56,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:13:56,341 INFO L85 PathProgramCache]: Analyzing trace with hash -659040169, now seen corresponding path program 1 times [2021-12-06 21:13:56,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:13:56,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738005667] [2021-12-06 21:13:56,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:13:56,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:13:56,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:57,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 21:13:57,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:57,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 21:13:57,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:57,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 21:13:57,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:57,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 21:13:57,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:57,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 21:13:57,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:57,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 21:13:57,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:57,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-06 21:13:57,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:57,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-06 21:13:57,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:57,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-06 21:13:57,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:57,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-06 21:13:57,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:57,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-06 21:13:57,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:57,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-06 21:13:57,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:57,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 21:13:57,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:57,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-06 21:13:57,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:57,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-06 21:13:57,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:57,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-06 21:13:57,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:57,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-06 21:13:57,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:13:57,173 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2021-12-06 21:13:57,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:13:57,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738005667] [2021-12-06 21:13:57,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738005667] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:13:57,173 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:13:57,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 21:13:57,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101668730] [2021-12-06 21:13:57,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:13:57,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 21:13:57,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:13:57,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 21:13:57,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 21:13:57,174 INFO L87 Difference]: Start difference. First operand 30346 states and 44878 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) [2021-12-06 21:13:58,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:13:58,017 INFO L93 Difference]: Finished difference Result 30372 states and 44903 transitions. [2021-12-06 21:13:58,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 21:13:58,018 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 [2021-12-06 21:13:58,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:13:58,130 INFO L225 Difference]: With dead ends: 30372 [2021-12-06 21:13:58,130 INFO L226 Difference]: Without dead ends: 30370 [2021-12-06 21:13:58,150 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-06 21:13:58,151 INFO L933 BasicCegarLoop]: 7156 mSDtfsCounter, 7117 mSDsluCounter, 14292 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7119 SdHoareTripleChecker+Valid, 21448 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 21:13:58,151 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7119 Valid, 21448 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 21:13:58,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30370 states. [2021-12-06 21:13:59,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30370 to 30370. [2021-12-06 21:13:59,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30370 states, 19168 states have (on average 1.2743113522537564) internal successors, (24426), 20028 states have internal predecessors, (24426), 9613 states have call successors, (9613), 1614 states have call predecessors, (9613), 1585 states have return successors, (10857), 9281 states have call predecessors, (10857), 9595 states have call successors, (10857) [2021-12-06 21:13:59,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30370 states to 30370 states and 44896 transitions. [2021-12-06 21:13:59,632 INFO L78 Accepts]: Start accepts. Automaton has 30370 states and 44896 transitions. Word has length 111 [2021-12-06 21:13:59,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:13:59,632 INFO L470 AbstractCegarLoop]: Abstraction has 30370 states and 44896 transitions. [2021-12-06 21:13:59,633 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) [2021-12-06 21:13:59,633 INFO L276 IsEmpty]: Start isEmpty. Operand 30370 states and 44896 transitions. [2021-12-06 21:13:59,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-06 21:13:59,635 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:13:59,635 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:13:59,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-06 21:13:59,635 INFO L402 AbstractCegarLoop]: === Iteration 12 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-06 21:13:59,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:13:59,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1576558589, now seen corresponding path program 1 times [2021-12-06 21:13:59,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:13:59,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413552323] [2021-12-06 21:13:59,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:13:59,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:14:00,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:00,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 21:14:00,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:00,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 21:14:00,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:00,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 21:14:00,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:00,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 21:14:00,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:00,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 21:14:00,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:00,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 21:14:00,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:00,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-06 21:14:00,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:00,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-06 21:14:00,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:00,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 21:14:00,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:00,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 21:14:00,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:00,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 21:14:00,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:00,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-06 21:14:00,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:00,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-06 21:14:00,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:00,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 21:14:00,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:01,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 21:14:01,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:01,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 21:14:01,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:01,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-06 21:14:01,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:01,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-06 21:14:01,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:01,047 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-12-06 21:14:01,047 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:14:01,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413552323] [2021-12-06 21:14:01,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413552323] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:14:01,047 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:14:01,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 21:14:01,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859056521] [2021-12-06 21:14:01,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:14:01,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 21:14:01,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:14:01,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 21:14:01,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 21:14:01,049 INFO L87 Difference]: Start difference. First operand 30370 states and 44896 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-06 21:14:03,213 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 21:14:47,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:14:47,998 INFO L93 Difference]: Finished difference Result 33390 states and 50117 transitions. [2021-12-06 21:14:47,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 21:14:47,999 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 122 [2021-12-06 21:14:47,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:14:48,125 INFO L225 Difference]: With dead ends: 33390 [2021-12-06 21:14:48,125 INFO L226 Difference]: Without dead ends: 33388 [2021-12-06 21:14:48,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-12-06 21:14:48,145 INFO L933 BasicCegarLoop]: 8327 mSDtfsCounter, 8171 mSDsluCounter, 20866 mSDsCounter, 0 mSdLazyCounter, 11288 mSolverCounterSat, 4981 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9540 SdHoareTripleChecker+Valid, 29193 SdHoareTripleChecker+Invalid, 16270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4981 IncrementalHoareTripleChecker+Valid, 11288 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.9s IncrementalHoareTripleChecker+Time [2021-12-06 21:14:48,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9540 Valid, 29193 Invalid, 16270 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4981 Valid, 11288 Invalid, 1 Unknown, 0 Unchecked, 44.9s Time] [2021-12-06 21:14:48,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33388 states. [2021-12-06 21:14:49,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33388 to 31736. [2021-12-06 21:14:49,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31736 states, 20040 states have (on average 1.2748502994011977) internal successors, (25548), 20928 states have internal predecessors, (25548), 10007 states have call successors, (10007), 1618 states have call predecessors, (10007), 1685 states have return successors, (11750), 9739 states have call predecessors, (11750), 9989 states have call successors, (11750) [2021-12-06 21:14:49,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31736 states to 31736 states and 47305 transitions. [2021-12-06 21:14:49,807 INFO L78 Accepts]: Start accepts. Automaton has 31736 states and 47305 transitions. Word has length 122 [2021-12-06 21:14:49,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:14:49,807 INFO L470 AbstractCegarLoop]: Abstraction has 31736 states and 47305 transitions. [2021-12-06 21:14:49,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-06 21:14:49,808 INFO L276 IsEmpty]: Start isEmpty. Operand 31736 states and 47305 transitions. [2021-12-06 21:14:49,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-06 21:14:49,809 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:14:49,809 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] [2021-12-06 21:14:49,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-06 21:14:49,810 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-06 21:14:49,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:14:49,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1735327585, now seen corresponding path program 1 times [2021-12-06 21:14:49,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:14:49,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772822043] [2021-12-06 21:14:49,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:14:49,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:14:50,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:50,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 21:14:50,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:50,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 21:14:50,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:50,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 21:14:50,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:50,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 21:14:50,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:50,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 21:14:50,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:50,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 21:14:50,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:50,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-06 21:14:50,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:50,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-06 21:14:50,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:50,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-06 21:14:50,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:50,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-06 21:14:50,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:50,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-06 21:14:50,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:50,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-06 21:14:50,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:50,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 21:14:50,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:50,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-06 21:14:50,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:50,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-06 21:14:50,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:50,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-06 21:14:50,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:50,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-06 21:14:50,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:50,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-06 21:14:50,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:50,755 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2021-12-06 21:14:50,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:14:50,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772822043] [2021-12-06 21:14:50,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772822043] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:14:50,755 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:14:50,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 21:14:50,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380238648] [2021-12-06 21:14:50,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:14:50,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 21:14:50,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:14:50,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 21:14:50,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 21:14:50,757 INFO L87 Difference]: Start difference. First operand 31736 states and 47305 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) [2021-12-06 21:14:51,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:14:51,833 INFO L93 Difference]: Finished difference Result 31762 states and 47330 transitions. [2021-12-06 21:14:51,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 21:14:51,833 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 [2021-12-06 21:14:51,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:14:51,947 INFO L225 Difference]: With dead ends: 31762 [2021-12-06 21:14:51,947 INFO L226 Difference]: Without dead ends: 31758 [2021-12-06 21:14:51,966 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 [2021-12-06 21:14:51,966 INFO L933 BasicCegarLoop]: 7156 mSDtfsCounter, 7117 mSDsluCounter, 14292 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7118 SdHoareTripleChecker+Valid, 21448 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 21:14:51,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7118 Valid, 21448 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 21:14:51,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31758 states. [2021-12-06 21:14:53,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31758 to 31758. [2021-12-06 21:14:53,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31758 states, 20057 states have (on average 1.274567482674378) internal successors, (25564), 20944 states have internal predecessors, (25564), 10007 states have call successors, (10007), 1624 states have call predecessors, (10007), 1690 states have return successors, (11750), 9739 states have call predecessors, (11750), 9989 states have call successors, (11750) [2021-12-06 21:14:53,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31758 states to 31758 states and 47321 transitions. [2021-12-06 21:14:53,562 INFO L78 Accepts]: Start accepts. Automaton has 31758 states and 47321 transitions. Word has length 116 [2021-12-06 21:14:53,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:14:53,563 INFO L470 AbstractCegarLoop]: Abstraction has 31758 states and 47321 transitions. [2021-12-06 21:14:53,563 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) [2021-12-06 21:14:53,563 INFO L276 IsEmpty]: Start isEmpty. Operand 31758 states and 47321 transitions. [2021-12-06 21:14:53,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-12-06 21:14:53,565 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:14:53,565 INFO L514 BasicCegarLoop]: trace histogram [13, 12, 12, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:14:53,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-06 21:14:53,565 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-06 21:14:53,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:14:53,565 INFO L85 PathProgramCache]: Analyzing trace with hash 686964703, now seen corresponding path program 1 times [2021-12-06 21:14:53,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:14:53,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722905707] [2021-12-06 21:14:53,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:14:53,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:14:53,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:54,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 21:14:54,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:54,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 21:14:54,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:54,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 21:14:54,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:54,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 21:14:54,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:54,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 21:14:54,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:54,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 21:14:54,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:54,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-06 21:14:54,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:54,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-06 21:14:54,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:54,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 21:14:54,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:54,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-06 21:14:54,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:54,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-06 21:14:54,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:54,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-06 21:14:54,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:54,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-06 21:14:54,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:54,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-06 21:14:54,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:54,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-06 21:14:54,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:54,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-06 21:14:54,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:54,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-06 21:14:54,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:54,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-06 21:14:54,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:54,398 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2021-12-06 21:14:54,398 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:14:54,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722905707] [2021-12-06 21:14:54,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722905707] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:14:54,398 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:14:54,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 21:14:54,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565776604] [2021-12-06 21:14:54,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:14:54,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 21:14:54,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:14:54,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 21:14:54,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 21:14:54,399 INFO L87 Difference]: Start difference. First operand 31758 states and 47321 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, (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) [2021-12-06 21:14:55,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:14:55,565 INFO L93 Difference]: Finished difference Result 31900 states and 47463 transitions. [2021-12-06 21:14:55,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 21:14:55,566 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, (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 108 [2021-12-06 21:14:55,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:14:55,670 INFO L225 Difference]: With dead ends: 31900 [2021-12-06 21:14:55,671 INFO L226 Difference]: Without dead ends: 31775 [2021-12-06 21:14:55,686 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 [2021-12-06 21:14:55,686 INFO L933 BasicCegarLoop]: 8889 mSDtfsCounter, 6990 mSDsluCounter, 24867 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6990 SdHoareTripleChecker+Valid, 33756 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 21:14:55,686 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6990 Valid, 33756 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 21:14:55,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31775 states. [2021-12-06 21:14:57,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31775 to 31765. [2021-12-06 21:14:57,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31765 states, 20065 states have (on average 1.274757039621231) internal successors, (25578), 20950 states have internal predecessors, (25578), 10002 states have call successors, (10002), 1627 states have call predecessors, (10002), 1694 states have return successors, (11748), 9737 states have call predecessors, (11748), 9987 states have call successors, (11748) [2021-12-06 21:14:57,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31765 states to 31765 states and 47328 transitions. [2021-12-06 21:14:57,323 INFO L78 Accepts]: Start accepts. Automaton has 31765 states and 47328 transitions. Word has length 108 [2021-12-06 21:14:57,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:14:57,324 INFO L470 AbstractCegarLoop]: Abstraction has 31765 states and 47328 transitions. [2021-12-06 21:14:57,324 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, (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) [2021-12-06 21:14:57,324 INFO L276 IsEmpty]: Start isEmpty. Operand 31765 states and 47328 transitions. [2021-12-06 21:14:57,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-12-06 21:14:57,326 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:14:57,326 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:14:57,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-06 21:14:57,326 INFO L402 AbstractCegarLoop]: === Iteration 15 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-06 21:14:57,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:14:57,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1293531651, now seen corresponding path program 1 times [2021-12-06 21:14:57,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:14:57,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387600752] [2021-12-06 21:14:57,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:14:57,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:14:57,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:58,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 21:14:58,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:58,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 21:14:58,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:58,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 21:14:58,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:58,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 21:14:58,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:58,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 21:14:58,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:58,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 21:14:58,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:58,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-06 21:14:58,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:58,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-06 21:14:58,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:58,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 21:14:58,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:58,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 21:14:58,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:58,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 21:14:58,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:58,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-06 21:14:58,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:58,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-06 21:14:58,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:58,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 21:14:58,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:58,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 21:14:58,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:58,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 21:14:58,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:58,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-06 21:14:58,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:58,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-06 21:14:58,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:58,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-06 21:14:58,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:58,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 21:14:58,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:58,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 21:14:58,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:58,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-06 21:14:58,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:14:58,339 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2021-12-06 21:14:58,339 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:14:58,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387600752] [2021-12-06 21:14:58,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387600752] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:14:58,339 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:14:58,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 21:14:58,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108246840] [2021-12-06 21:14:58,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:14:58,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 21:14:58,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:14:58,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 21:14:58,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 21:14:58,340 INFO L87 Difference]: Start difference. First operand 31765 states and 47328 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-06 21:15:00,459 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 21:15:02,800 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 21:15:05,116 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []