./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-skge.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e9cb0f-922e-43b2-9cb7-6d9c0c1d95ba/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e9cb0f-922e-43b2-9cb7-6d9c0c1d95ba/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e9cb0f-922e-43b2-9cb7-6d9c0c1d95ba/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e9cb0f-922e-43b2-9cb7-6d9c0c1d95ba/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-skge.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e9cb0f-922e-43b2-9cb7-6d9c0c1d95ba/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e9cb0f-922e-43b2-9cb7-6d9c0c1d95ba/bin/utaipan-I9t0OCRTmS --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ecb09fcd4af8896fb99016d38e6abd667b22906b8374105b5f3887f6baa58c75 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:38:57,792 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:38:57,794 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:38:57,824 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:38:57,825 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:38:57,826 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:38:57,828 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:38:57,830 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:38:57,832 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:38:57,833 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:38:57,834 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:38:57,836 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:38:57,837 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:38:57,838 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:38:57,839 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:38:57,841 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:38:57,842 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:38:57,843 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:38:57,845 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:38:57,848 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:38:57,850 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:38:57,854 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:38:57,855 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:38:57,856 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:38:57,860 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:38:57,861 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:38:57,861 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:38:57,863 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:38:57,863 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:38:57,865 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:38:57,865 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:38:57,866 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:38:57,867 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:38:57,868 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:38:57,870 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:38:57,870 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:38:57,871 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:38:57,871 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:38:57,872 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:38:57,873 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:38:57,874 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:38:57,875 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e9cb0f-922e-43b2-9cb7-6d9c0c1d95ba/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 07:38:57,914 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:38:57,915 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:38:57,916 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:38:57,916 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:38:57,917 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:38:57,917 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:38:57,918 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:38:57,918 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:38:57,918 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:38:57,918 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:38:57,920 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:38:57,920 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:38:57,920 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:38:57,920 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:38:57,921 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:38:57,921 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:38:57,921 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:38:57,921 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:38:57,922 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:38:57,922 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:38:57,923 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:38:57,923 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:38:57,923 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:38:57,923 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:38:57,924 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:38:57,925 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:38:57,926 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:38:57,926 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:38:57,926 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:38:57,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:38:57,927 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:38:57,927 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:38:57,928 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:38:57,928 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:38:57,928 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:38:57,928 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:38:57,929 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:38:57,929 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:38:57,929 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_f8e9cb0f-922e-43b2-9cb7-6d9c0c1d95ba/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e9cb0f-922e-43b2-9cb7-6d9c0c1d95ba/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ecb09fcd4af8896fb99016d38e6abd667b22906b8374105b5f3887f6baa58c75 [2022-11-19 07:38:58,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:38:58,299 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:38:58,303 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:38:58,305 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:38:58,309 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:38:58,311 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e9cb0f-922e-43b2-9cb7-6d9c0c1d95ba/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-skge.cil.i [2022-11-19 07:38:58,409 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e9cb0f-922e-43b2-9cb7-6d9c0c1d95ba/bin/utaipan-I9t0OCRTmS/data/77af16773/11f15329bea74b7d86be020953f85e95/FLAG5cd5447fb [2022-11-19 07:38:59,599 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:38:59,600 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e9cb0f-922e-43b2-9cb7-6d9c0c1d95ba/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-skge.cil.i [2022-11-19 07:38:59,692 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e9cb0f-922e-43b2-9cb7-6d9c0c1d95ba/bin/utaipan-I9t0OCRTmS/data/77af16773/11f15329bea74b7d86be020953f85e95/FLAG5cd5447fb [2022-11-19 07:38:59,780 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e9cb0f-922e-43b2-9cb7-6d9c0c1d95ba/bin/utaipan-I9t0OCRTmS/data/77af16773/11f15329bea74b7d86be020953f85e95 [2022-11-19 07:38:59,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:38:59,786 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:38:59,792 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:38:59,792 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:38:59,797 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:38:59,799 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:38:59" (1/1) ... [2022-11-19 07:38:59,800 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33618cbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:59, skipping insertion in model container [2022-11-19 07:38:59,801 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:38:59" (1/1) ... [2022-11-19 07:38:59,809 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:39:00,051 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:39:06,147 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e9cb0f-922e-43b2-9cb7-6d9c0c1d95ba/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-skge.cil.i[510832,510845] [2022-11-19 07:39:06,154 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e9cb0f-922e-43b2-9cb7-6d9c0c1d95ba/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-skge.cil.i[511001,511014] [2022-11-19 07:39:06,155 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e9cb0f-922e-43b2-9cb7-6d9c0c1d95ba/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-skge.cil.i[511168,511181] [2022-11-19 07:39:06,162 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e9cb0f-922e-43b2-9cb7-6d9c0c1d95ba/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-skge.cil.i[511336,511349] [2022-11-19 07:39:06,202 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:39:06,326 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:39:07,000 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e9cb0f-922e-43b2-9cb7-6d9c0c1d95ba/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-skge.cil.i[510832,510845] [2022-11-19 07:39:07,001 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e9cb0f-922e-43b2-9cb7-6d9c0c1d95ba/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-skge.cil.i[511001,511014] [2022-11-19 07:39:07,002 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e9cb0f-922e-43b2-9cb7-6d9c0c1d95ba/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-skge.cil.i[511168,511181] [2022-11-19 07:39:07,002 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e9cb0f-922e-43b2-9cb7-6d9c0c1d95ba/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-skge.cil.i[511336,511349] [2022-11-19 07:39:07,015 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:39:07,314 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:39:07,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:07 WrapperNode [2022-11-19 07:39:07,315 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:39:07,316 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:39:07,317 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:39:07,317 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:39:07,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:07" (1/1) ... [2022-11-19 07:39:07,508 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:07" (1/1) ... [2022-11-19 07:39:07,815 INFO L138 Inliner]: procedures = 719, calls = 4012, calls flagged for inlining = 373, calls inlined = 336, statements flattened = 10032 [2022-11-19 07:39:07,816 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:39:07,817 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:39:07,817 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:39:07,819 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:39:07,831 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:07" (1/1) ... [2022-11-19 07:39:07,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:07" (1/1) ... [2022-11-19 07:39:07,879 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:07" (1/1) ... [2022-11-19 07:39:07,879 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:07" (1/1) ... [2022-11-19 07:39:08,057 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:07" (1/1) ... [2022-11-19 07:39:08,099 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:07" (1/1) ... [2022-11-19 07:39:08,147 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:07" (1/1) ... [2022-11-19 07:39:08,386 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:07" (1/1) ... [2022-11-19 07:39:08,450 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:39:08,452 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:39:08,452 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:39:08,452 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:39:08,454 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:07" (1/1) ... [2022-11-19 07:39:08,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:39:08,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e9cb0f-922e-43b2-9cb7-6d9c0c1d95ba/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:39:08,499 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e9cb0f-922e-43b2-9cb7-6d9c0c1d95ba/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:39:08,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e9cb0f-922e-43b2-9cb7-6d9c0c1d95ba/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:39:08,557 INFO L130 BoogieDeclarations]: Found specification of procedure skge_get_regs_len [2022-11-19 07:39:08,557 INFO L138 BoogieDeclarations]: Found implementation of procedure skge_get_regs_len [2022-11-19 07:39:08,557 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2022-11-19 07:39:08,557 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2022-11-19 07:39:08,558 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-19 07:39:08,558 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-19 07:39:08,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 07:39:08,559 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 07:39:08,559 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-11-19 07:39:08,559 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-11-19 07:39:08,559 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-19 07:39:08,560 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-19 07:39:08,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 07:39:08,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 07:39:08,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_7_2 [2022-11-19 07:39:08,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_7_2 [2022-11-19 07:39:08,561 INFO L130 BoogieDeclarations]: Found specification of procedure xm_outhash [2022-11-19 07:39:08,561 INFO L138 BoogieDeclarations]: Found implementation of procedure xm_outhash [2022-11-19 07:39:08,561 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2022-11-19 07:39:08,561 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2022-11-19 07:39:08,561 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-19 07:39:08,562 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-19 07:39:08,562 INFO L130 BoogieDeclarations]: Found specification of procedure xm_phy_read [2022-11-19 07:39:08,562 INFO L138 BoogieDeclarations]: Found implementation of procedure xm_phy_read [2022-11-19 07:39:08,563 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-19 07:39:08,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-19 07:39:08,563 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-19 07:39:08,563 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-19 07:39:08,564 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-19 07:39:08,564 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-19 07:39:08,564 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2022-11-19 07:39:08,564 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2022-11-19 07:39:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-19 07:39:08,565 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-19 07:39:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_79 [2022-11-19 07:39:08,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_79 [2022-11-19 07:39:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure skge_led [2022-11-19 07:39:08,566 INFO L138 BoogieDeclarations]: Found implementation of procedure skge_led [2022-11-19 07:39:08,566 INFO L130 BoogieDeclarations]: Found specification of procedure skge_usecs2clk [2022-11-19 07:39:08,566 INFO L138 BoogieDeclarations]: Found implementation of procedure skge_usecs2clk [2022-11-19 07:39:08,567 INFO L130 BoogieDeclarations]: Found specification of procedure gm_phy_read [2022-11-19 07:39:08,567 INFO L138 BoogieDeclarations]: Found implementation of procedure gm_phy_read [2022-11-19 07:39:08,568 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-19 07:39:08,569 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-19 07:39:08,569 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2022-11-19 07:39:08,569 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2022-11-19 07:39:08,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_7 [2022-11-19 07:39:08,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_7 [2022-11-19 07:39:08,570 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-19 07:39:08,570 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-19 07:39:08,570 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2022-11-19 07:39:08,570 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2022-11-19 07:39:08,571 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_unlock [2022-11-19 07:39:08,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_unlock [2022-11-19 07:39:08,572 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_unlock [2022-11-19 07:39:08,572 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_unlock [2022-11-19 07:39:08,572 INFO L130 BoogieDeclarations]: Found specification of procedure xm_write32 [2022-11-19 07:39:08,572 INFO L138 BoogieDeclarations]: Found implementation of procedure xm_write32 [2022-11-19 07:39:08,573 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-19 07:39:08,573 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-19 07:39:08,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-19 07:39:08,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-19 07:39:08,573 INFO L130 BoogieDeclarations]: Found specification of procedure skge_write8 [2022-11-19 07:39:08,574 INFO L138 BoogieDeclarations]: Found implementation of procedure skge_write8 [2022-11-19 07:39:08,574 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-19 07:39:08,574 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-19 07:39:08,575 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-19 07:39:08,575 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-19 07:39:08,575 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-19 07:39:08,576 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-19 07:39:08,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-19 07:39:08,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-19 07:39:08,576 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-19 07:39:08,576 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-19 07:39:08,577 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-19 07:39:08,577 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-19 07:39:08,578 INFO L130 BoogieDeclarations]: Found specification of procedure yukon_link_up [2022-11-19 07:39:08,578 INFO L138 BoogieDeclarations]: Found implementation of procedure yukon_link_up [2022-11-19 07:39:08,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:39:08,579 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-19 07:39:08,579 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-19 07:39:08,579 INFO L130 BoogieDeclarations]: Found specification of procedure skge_tx_timeout [2022-11-19 07:39:08,581 INFO L138 BoogieDeclarations]: Found implementation of procedure skge_tx_timeout [2022-11-19 07:39:08,581 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2022-11-19 07:39:08,581 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2022-11-19 07:39:08,582 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2022-11-19 07:39:08,583 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2022-11-19 07:39:08,583 INFO L130 BoogieDeclarations]: Found specification of procedure netif_schedule_queue [2022-11-19 07:39:08,583 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_schedule_queue [2022-11-19 07:39:08,584 INFO L130 BoogieDeclarations]: Found specification of procedure yukon_reset [2022-11-19 07:39:08,584 INFO L138 BoogieDeclarations]: Found implementation of procedure yukon_reset [2022-11-19 07:39:08,584 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-19 07:39:08,584 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-19 07:39:08,584 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-19 07:39:08,585 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-19 07:39:08,585 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2022-11-19 07:39:08,585 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2022-11-19 07:39:08,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 07:39:08,586 INFO L130 BoogieDeclarations]: Found specification of procedure skge_ramset [2022-11-19 07:39:08,586 INFO L138 BoogieDeclarations]: Found implementation of procedure skge_ramset [2022-11-19 07:39:08,586 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-19 07:39:08,586 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-19 07:39:08,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-11-19 07:39:08,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-11-19 07:39:08,588 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-19 07:39:08,592 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-19 07:39:08,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 07:39:08,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-19 07:39:08,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-19 07:39:08,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_66 [2022-11-19 07:39:08,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_66 [2022-11-19 07:39:08,596 INFO L130 BoogieDeclarations]: Found specification of procedure skge_set_multicast [2022-11-19 07:39:08,597 INFO L138 BoogieDeclarations]: Found implementation of procedure skge_set_multicast [2022-11-19 07:39:08,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:39:08,601 INFO L130 BoogieDeclarations]: Found specification of procedure bcom_check_link [2022-11-19 07:39:08,601 INFO L138 BoogieDeclarations]: Found implementation of procedure bcom_check_link [2022-11-19 07:39:08,601 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-19 07:39:08,602 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-19 07:39:08,602 INFO L130 BoogieDeclarations]: Found specification of procedure skge_remove [2022-11-19 07:39:08,602 INFO L138 BoogieDeclarations]: Found implementation of procedure skge_remove [2022-11-19 07:39:08,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 07:39:08,602 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 07:39:08,603 INFO L130 BoogieDeclarations]: Found specification of procedure skge_suspend [2022-11-19 07:39:08,603 INFO L138 BoogieDeclarations]: Found implementation of procedure skge_suspend [2022-11-19 07:39:08,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-19 07:39:08,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-19 07:39:08,669 INFO L130 BoogieDeclarations]: Found specification of procedure skge_write16 [2022-11-19 07:39:08,669 INFO L138 BoogieDeclarations]: Found implementation of procedure skge_write16 [2022-11-19 07:39:08,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-19 07:39:08,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-19 07:39:08,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-19 07:39:08,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-19 07:39:08,670 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2022-11-19 07:39:08,670 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2022-11-19 07:39:08,670 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-19 07:39:08,670 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-19 07:39:08,670 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2022-11-19 07:39:08,670 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2022-11-19 07:39:08,670 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-19 07:39:08,670 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-19 07:39:08,670 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-19 07:39:08,670 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-19 07:39:08,670 INFO L130 BoogieDeclarations]: Found specification of procedure xm_write16 [2022-11-19 07:39:08,671 INFO L138 BoogieDeclarations]: Found implementation of procedure xm_write16 [2022-11-19 07:39:08,671 INFO L130 BoogieDeclarations]: Found specification of procedure skge_mac_parity [2022-11-19 07:39:08,671 INFO L138 BoogieDeclarations]: Found implementation of procedure skge_mac_parity [2022-11-19 07:39:08,671 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_lock [2022-11-19 07:39:08,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_lock [2022-11-19 07:39:08,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_hw_lock_of_skge_hw [2022-11-19 07:39:08,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_hw_lock_of_skge_hw [2022-11-19 07:39:08,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-19 07:39:08,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-19 07:39:08,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:39:08,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2022-11-19 07:39:08,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2022-11-19 07:39:08,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-19 07:39:08,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-19 07:39:08,672 INFO L130 BoogieDeclarations]: Found specification of procedure skge_link_down [2022-11-19 07:39:08,678 INFO L138 BoogieDeclarations]: Found implementation of procedure skge_link_down [2022-11-19 07:39:08,678 INFO L130 BoogieDeclarations]: Found specification of procedure skge_rx_setup [2022-11-19 07:39:08,678 INFO L138 BoogieDeclarations]: Found implementation of procedure skge_rx_setup [2022-11-19 07:39:08,678 INFO L130 BoogieDeclarations]: Found specification of procedure skge_write32 [2022-11-19 07:39:08,678 INFO L138 BoogieDeclarations]: Found implementation of procedure skge_write32 [2022-11-19 07:39:08,678 INFO L130 BoogieDeclarations]: Found specification of procedure skge_read8 [2022-11-19 07:39:08,678 INFO L138 BoogieDeclarations]: Found implementation of procedure skge_read8 [2022-11-19 07:39:08,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:39:08,679 INFO L130 BoogieDeclarations]: Found specification of procedure skge_tx_clean [2022-11-19 07:39:08,679 INFO L138 BoogieDeclarations]: Found implementation of procedure skge_tx_clean [2022-11-19 07:39:08,679 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-19 07:39:08,679 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-19 07:39:08,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-19 07:39:08,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-19 07:39:08,679 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-19 07:39:08,679 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-19 07:39:08,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:39:08,679 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-11-19 07:39:08,679 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-11-19 07:39:08,680 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-19 07:39:08,680 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:39:08,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:39:08,680 INFO L130 BoogieDeclarations]: Found specification of procedure skge_up [2022-11-19 07:39:08,680 INFO L138 BoogieDeclarations]: Found implementation of procedure skge_up [2022-11-19 07:39:08,680 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-19 07:39:08,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-19 07:39:08,680 INFO L130 BoogieDeclarations]: Found specification of procedure skge_reset [2022-11-19 07:39:08,680 INFO L138 BoogieDeclarations]: Found implementation of procedure skge_reset [2022-11-19 07:39:08,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_phy_lock_of_skge_hw [2022-11-19 07:39:08,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_phy_lock_of_skge_hw [2022-11-19 07:39:08,681 INFO L130 BoogieDeclarations]: Found specification of procedure skge_vpd_read [2022-11-19 07:39:08,681 INFO L138 BoogieDeclarations]: Found implementation of procedure skge_vpd_read [2022-11-19 07:39:08,681 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-19 07:39:08,681 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-19 07:39:08,681 INFO L130 BoogieDeclarations]: Found specification of procedure wol_supported [2022-11-19 07:39:08,681 INFO L138 BoogieDeclarations]: Found implementation of procedure wol_supported [2022-11-19 07:39:08,681 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-19 07:39:08,681 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-19 07:39:08,681 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-19 07:39:08,681 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-19 07:39:08,682 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-19 07:39:08,682 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-19 07:39:08,682 INFO L130 BoogieDeclarations]: Found specification of procedure yukon_init [2022-11-19 07:39:08,682 INFO L138 BoogieDeclarations]: Found implementation of procedure yukon_init [2022-11-19 07:39:08,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-19 07:39:08,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-19 07:39:08,682 INFO L130 BoogieDeclarations]: Found specification of procedure xm_phy_write [2022-11-19 07:39:08,682 INFO L138 BoogieDeclarations]: Found implementation of procedure xm_phy_write [2022-11-19 07:39:08,682 INFO L130 BoogieDeclarations]: Found specification of procedure device_can_wakeup [2022-11-19 07:39:08,682 INFO L138 BoogieDeclarations]: Found implementation of procedure device_can_wakeup [2022-11-19 07:39:08,683 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-11-19 07:39:08,683 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-11-19 07:39:08,683 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2022-11-19 07:39:08,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2022-11-19 07:39:08,683 INFO L130 BoogieDeclarations]: Found specification of procedure skge_resume [2022-11-19 07:39:08,683 INFO L138 BoogieDeclarations]: Found implementation of procedure skge_resume [2022-11-19 07:39:08,683 INFO L130 BoogieDeclarations]: Found specification of procedure yukon_get_stats [2022-11-19 07:39:08,683 INFO L138 BoogieDeclarations]: Found implementation of procedure yukon_get_stats [2022-11-19 07:39:08,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_63 [2022-11-19 07:39:08,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_63 [2022-11-19 07:39:08,683 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-19 07:39:08,684 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-19 07:39:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure skge_supported_modes [2022-11-19 07:39:08,684 INFO L138 BoogieDeclarations]: Found implementation of procedure skge_supported_modes [2022-11-19 07:39:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure xm_link_timer [2022-11-19 07:39:08,684 INFO L138 BoogieDeclarations]: Found implementation of procedure xm_link_timer [2022-11-19 07:39:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:39:08,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:39:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-19 07:39:08,684 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-19 07:39:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read16 [2022-11-19 07:39:08,685 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read16 [2022-11-19 07:39:08,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 07:39:08,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 07:39:08,690 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 07:39:08,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 07:39:08,690 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-19 07:39:08,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-19 07:39:08,691 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2022-11-19 07:39:08,691 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2022-11-19 07:39:08,691 INFO L130 BoogieDeclarations]: Found specification of procedure genesis_get_stats [2022-11-19 07:39:08,691 INFO L138 BoogieDeclarations]: Found implementation of procedure genesis_get_stats [2022-11-19 07:39:08,691 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2022-11-19 07:39:08,691 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2022-11-19 07:39:08,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-19 07:39:08,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-19 07:39:08,695 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-19 07:39:08,696 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-19 07:39:08,696 INFO L130 BoogieDeclarations]: Found specification of procedure yukon_add_filter [2022-11-19 07:39:08,696 INFO L138 BoogieDeclarations]: Found implementation of procedure yukon_add_filter [2022-11-19 07:39:08,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_hw_lock_of_skge_hw [2022-11-19 07:39:08,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_hw_lock_of_skge_hw [2022-11-19 07:39:08,696 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-19 07:39:08,697 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-19 07:39:08,697 INFO L130 BoogieDeclarations]: Found specification of procedure genesis_add_filter [2022-11-19 07:39:08,697 INFO L138 BoogieDeclarations]: Found implementation of procedure genesis_add_filter [2022-11-19 07:39:08,697 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2022-11-19 07:39:08,697 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2022-11-19 07:39:08,697 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-19 07:39:08,697 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-19 07:39:08,698 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-19 07:39:08,698 INFO L130 BoogieDeclarations]: Found specification of procedure skge_get_pauseparam [2022-11-19 07:39:08,698 INFO L138 BoogieDeclarations]: Found implementation of procedure skge_get_pauseparam [2022-11-19 07:39:08,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-19 07:39:08,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-19 07:39:08,698 INFO L130 BoogieDeclarations]: Found specification of procedure skge_down [2022-11-19 07:39:08,699 INFO L138 BoogieDeclarations]: Found implementation of procedure skge_down [2022-11-19 07:39:08,699 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read32 [2022-11-19 07:39:08,699 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read32 [2022-11-19 07:39:08,699 INFO L130 BoogieDeclarations]: Found specification of procedure xm_read32 [2022-11-19 07:39:08,699 INFO L138 BoogieDeclarations]: Found implementation of procedure xm_read32 [2022-11-19 07:39:08,699 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-19 07:39:08,700 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-19 07:39:08,700 INFO L130 BoogieDeclarations]: Found specification of procedure gma_set_addr [2022-11-19 07:39:08,700 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_set_addr [2022-11-19 07:39:08,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 07:39:08,700 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 07:39:08,700 INFO L130 BoogieDeclarations]: Found specification of procedure xm_read16 [2022-11-19 07:39:08,701 INFO L138 BoogieDeclarations]: Found implementation of procedure xm_read16 [2022-11-19 07:39:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-19 07:39:08,701 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-19 07:39:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-11-19 07:39:08,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-11-19 07:39:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2022-11-19 07:39:08,702 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2022-11-19 07:39:08,702 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-19 07:39:08,702 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-19 07:39:08,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_78 [2022-11-19 07:39:08,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_78 [2022-11-19 07:39:08,703 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-19 07:39:08,704 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-19 07:39:08,704 INFO L130 BoogieDeclarations]: Found specification of procedure genesis_link_up [2022-11-19 07:39:08,704 INFO L138 BoogieDeclarations]: Found implementation of procedure genesis_link_up [2022-11-19 07:39:08,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:39:08,704 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-19 07:39:08,704 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-19 07:39:08,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:39:08,705 INFO L130 BoogieDeclarations]: Found specification of procedure skge_tx_unmap [2022-11-19 07:39:08,705 INFO L138 BoogieDeclarations]: Found implementation of procedure skge_tx_unmap [2022-11-19 07:39:08,705 INFO L130 BoogieDeclarations]: Found specification of procedure skge_ring_alloc [2022-11-19 07:39:08,705 INFO L138 BoogieDeclarations]: Found implementation of procedure skge_ring_alloc [2022-11-19 07:39:08,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_phy_lock_of_skge_hw [2022-11-19 07:39:08,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_phy_lock_of_skge_hw [2022-11-19 07:39:08,706 INFO L130 BoogieDeclarations]: Found specification of procedure local_bh_disable [2022-11-19 07:39:08,706 INFO L138 BoogieDeclarations]: Found implementation of procedure local_bh_disable [2022-11-19 07:39:08,706 INFO L130 BoogieDeclarations]: Found specification of procedure hwkhz [2022-11-19 07:39:08,706 INFO L138 BoogieDeclarations]: Found implementation of procedure hwkhz [2022-11-19 07:39:08,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 07:39:08,706 INFO L130 BoogieDeclarations]: Found specification of procedure skge_mac_intr [2022-11-19 07:39:08,707 INFO L138 BoogieDeclarations]: Found implementation of procedure skge_mac_intr [2022-11-19 07:39:08,707 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-19 07:39:08,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-19 07:39:08,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-11-19 07:39:08,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-11-19 07:39:08,707 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-19 07:39:08,708 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-19 07:39:08,708 INFO L130 BoogieDeclarations]: Found specification of procedure genesis_reset [2022-11-19 07:39:08,708 INFO L138 BoogieDeclarations]: Found implementation of procedure genesis_reset [2022-11-19 07:39:08,708 INFO L130 BoogieDeclarations]: Found specification of procedure __gm_phy_read [2022-11-19 07:39:08,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __gm_phy_read [2022-11-19 07:39:08,708 INFO L130 BoogieDeclarations]: Found specification of procedure __xm_phy_read [2022-11-19 07:39:08,709 INFO L138 BoogieDeclarations]: Found implementation of procedure __xm_phy_read [2022-11-19 07:39:08,709 INFO L130 BoogieDeclarations]: Found specification of procedure xm_outaddr [2022-11-19 07:39:08,709 INFO L138 BoogieDeclarations]: Found implementation of procedure xm_outaddr [2022-11-19 07:39:08,709 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-19 07:39:08,709 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-19 07:39:08,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-11-19 07:39:08,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-11-19 07:39:08,710 INFO L130 BoogieDeclarations]: Found specification of procedure skge_devinit [2022-11-19 07:39:08,710 INFO L138 BoogieDeclarations]: Found implementation of procedure skge_devinit [2022-11-19 07:39:08,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-19 07:39:08,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-19 07:39:08,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_12_2 [2022-11-19 07:39:08,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_12_2 [2022-11-19 07:39:08,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-19 07:39:08,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-19 07:39:08,711 INFO L130 BoogieDeclarations]: Found specification of procedure pci_find_capability [2022-11-19 07:39:08,711 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_find_capability [2022-11-19 07:39:08,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-19 07:39:08,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-19 07:39:08,712 INFO L130 BoogieDeclarations]: Found specification of procedure skge_link_up [2022-11-19 07:39:08,712 INFO L138 BoogieDeclarations]: Found implementation of procedure skge_link_up [2022-11-19 07:39:08,712 INFO L130 BoogieDeclarations]: Found specification of procedure skge_nway_reset [2022-11-19 07:39:08,712 INFO L138 BoogieDeclarations]: Found implementation of procedure skge_nway_reset [2022-11-19 07:39:08,712 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-11-19 07:39:08,712 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-11-19 07:39:08,712 INFO L130 BoogieDeclarations]: Found specification of procedure genesis_mac_init [2022-11-19 07:39:08,713 INFO L138 BoogieDeclarations]: Found implementation of procedure genesis_mac_init [2022-11-19 07:39:08,713 INFO L130 BoogieDeclarations]: Found specification of procedure gma_write16 [2022-11-19 07:39:08,713 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_write16 [2022-11-19 07:39:08,713 INFO L130 BoogieDeclarations]: Found specification of procedure skge_avail [2022-11-19 07:39:08,713 INFO L138 BoogieDeclarations]: Found implementation of procedure skge_avail [2022-11-19 07:39:08,713 INFO L130 BoogieDeclarations]: Found specification of procedure skge_read32 [2022-11-19 07:39:08,714 INFO L138 BoogieDeclarations]: Found implementation of procedure skge_read32 [2022-11-19 07:39:08,714 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-19 07:39:08,714 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-19 07:39:08,714 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-11-19 07:39:08,714 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-11-19 07:39:08,714 INFO L130 BoogieDeclarations]: Found specification of procedure is_genesis [2022-11-19 07:39:08,715 INFO L138 BoogieDeclarations]: Found implementation of procedure is_genesis [2022-11-19 07:39:08,715 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-19 07:39:08,715 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-19 07:39:08,718 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_lock [2022-11-19 07:39:08,718 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_lock [2022-11-19 07:39:08,718 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 07:39:08,718 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 07:39:08,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:39:08,718 INFO L130 BoogieDeclarations]: Found specification of procedure skge_shutdown [2022-11-19 07:39:08,719 INFO L138 BoogieDeclarations]: Found implementation of procedure skge_shutdown [2022-11-19 07:39:08,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 07:39:08,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 07:39:08,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_62 [2022-11-19 07:39:08,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_62 [2022-11-19 07:39:08,721 INFO L130 BoogieDeclarations]: Found specification of procedure skge_wol_init [2022-11-19 07:39:08,721 INFO L138 BoogieDeclarations]: Found implementation of procedure skge_wol_init [2022-11-19 07:39:08,721 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-19 07:39:08,721 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-19 07:39:08,721 INFO L130 BoogieDeclarations]: Found specification of procedure skge_rx_clean [2022-11-19 07:39:08,721 INFO L138 BoogieDeclarations]: Found implementation of procedure skge_rx_clean [2022-11-19 07:39:08,722 INFO L130 BoogieDeclarations]: Found specification of procedure skge_netpoll [2022-11-19 07:39:08,722 INFO L138 BoogieDeclarations]: Found implementation of procedure skge_netpoll [2022-11-19 07:39:08,722 INFO L130 BoogieDeclarations]: Found specification of procedure skge_intr [2022-11-19 07:39:08,722 INFO L138 BoogieDeclarations]: Found implementation of procedure skge_intr [2022-11-19 07:39:08,722 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-19 07:39:08,722 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-19 07:39:08,723 INFO L130 BoogieDeclarations]: Found specification of procedure skge_get_eeprom_len [2022-11-19 07:39:08,723 INFO L138 BoogieDeclarations]: Found implementation of procedure skge_get_eeprom_len [2022-11-19 07:39:08,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-19 07:39:08,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-19 07:39:08,723 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-19 07:39:08,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-19 07:39:08,723 INFO L130 BoogieDeclarations]: Found specification of procedure gm_phy_write [2022-11-19 07:39:08,724 INFO L138 BoogieDeclarations]: Found implementation of procedure gm_phy_write [2022-11-19 07:39:08,724 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2022-11-19 07:39:08,724 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2022-11-19 07:39:08,724 INFO L130 BoogieDeclarations]: Found specification of procedure yukon_speed [2022-11-19 07:39:08,724 INFO L138 BoogieDeclarations]: Found implementation of procedure yukon_speed [2022-11-19 07:39:08,724 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-19 07:39:08,725 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-19 07:39:08,725 INFO L130 BoogieDeclarations]: Found specification of procedure skge_read16 [2022-11-19 07:39:08,725 INFO L138 BoogieDeclarations]: Found implementation of procedure skge_read16 [2022-11-19 07:39:08,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:39:08,725 INFO L130 BoogieDeclarations]: Found specification of procedure local_bh_enable [2022-11-19 07:39:08,725 INFO L138 BoogieDeclarations]: Found implementation of procedure local_bh_enable [2022-11-19 07:39:08,725 INFO L130 BoogieDeclarations]: Found specification of procedure xm_link_down [2022-11-19 07:39:08,726 INFO L138 BoogieDeclarations]: Found implementation of procedure xm_link_down [2022-11-19 07:39:08,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-19 07:39:08,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-19 07:39:08,726 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-19 07:39:08,726 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-19 07:39:08,727 INFO L130 BoogieDeclarations]: Found specification of procedure skge_show_addr [2022-11-19 07:39:08,727 INFO L138 BoogieDeclarations]: Found implementation of procedure skge_show_addr [2022-11-19 07:39:08,727 INFO L130 BoogieDeclarations]: Found specification of procedure skge_qset [2022-11-19 07:39:08,727 INFO L138 BoogieDeclarations]: Found implementation of procedure skge_qset [2022-11-19 07:39:10,329 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:39:10,333 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:39:10,399 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 07:48:19,011 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:48:30,413 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:48:30,413 INFO L300 CfgBuilder]: Removed 12 assume(true) statements. [2022-11-19 07:48:30,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:48:30 BoogieIcfgContainer [2022-11-19 07:48:30,421 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:48:30,424 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:48:30,425 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:48:30,428 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:48:30,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:38:59" (1/3) ... [2022-11-19 07:48:30,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c346f7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:48:30, skipping insertion in model container [2022-11-19 07:48:30,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:07" (2/3) ... [2022-11-19 07:48:30,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c346f7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:48:30, skipping insertion in model container [2022-11-19 07:48:30,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:48:30" (3/3) ... [2022-11-19 07:48:30,431 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-skge.cil.i [2022-11-19 07:48:30,450 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:48:30,450 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-19 07:48:30,570 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:48:30,580 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@43c5d623, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:48:30,580 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-19 07:48:30,594 INFO L276 IsEmpty]: Start isEmpty. Operand has 2913 states, 1571 states have (on average 1.267982176957352) internal successors, (1992), 1678 states have internal predecessors, (1992), 1142 states have call successors, (1142), 197 states have call predecessors, (1142), 196 states have return successors, (1134), 1103 states have call predecessors, (1134), 1134 states have call successors, (1134) [2022-11-19 07:48:30,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-19 07:48:30,608 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:48:30,609 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-19 07:48:30,610 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 07:48:30,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:48:30,618 INFO L85 PathProgramCache]: Analyzing trace with hash -950797222, now seen corresponding path program 1 times [2022-11-19 07:48:30,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:48:30,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626590153] [2022-11-19 07:48:30,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:48:30,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:48:31,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:48:34,222 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-19 07:48:34,223 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:48:34,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626590153] [2022-11-19 07:48:34,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626590153] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:48:34,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:48:34,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:48:34,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136704709] [2022-11-19 07:48:34,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:48:34,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:48:34,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:48:34,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:48:34,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:48:34,267 INFO L87 Difference]: Start difference. First operand has 2913 states, 1571 states have (on average 1.267982176957352) internal successors, (1992), 1678 states have internal predecessors, (1992), 1142 states have call successors, (1142), 197 states have call predecessors, (1142), 196 states have return successors, (1134), 1103 states have call predecessors, (1134), 1134 states have call successors, (1134) Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 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) [2022-11-19 07:48:36,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:48:43,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:48:50,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:48:50,631 INFO L93 Difference]: Finished difference Result 6016 states and 8918 transitions. [2022-11-19 07:48:50,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:48:50,634 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 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 47 [2022-11-19 07:48:50,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:48:50,677 INFO L225 Difference]: With dead ends: 6016 [2022-11-19 07:48:50,677 INFO L226 Difference]: Without dead ends: 3159 [2022-11-19 07:48:50,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:48:50,704 INFO L413 NwaCegarLoop]: 3928 mSDtfsCounter, 4161 mSDsluCounter, 8213 mSDsCounter, 0 mSdLazyCounter, 1447 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4176 SdHoareTripleChecker+Valid, 12141 SdHoareTripleChecker+Invalid, 1453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1447 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2022-11-19 07:48:50,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4176 Valid, 12141 Invalid, 1453 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 1447 Invalid, 2 Unknown, 0 Unchecked, 15.7s Time] [2022-11-19 07:48:50,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3159 states. [2022-11-19 07:48:50,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3159 to 3155. [2022-11-19 07:48:50,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3155 states, 1694 states have (on average 1.256198347107438) internal successors, (2128), 1804 states have internal predecessors, (2128), 1228 states have call successors, (1228), 231 states have call predecessors, (1228), 230 states have return successors, (1225), 1189 states have call predecessors, (1225), 1225 states have call successors, (1225) [2022-11-19 07:48:51,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3155 states to 3155 states and 4581 transitions. [2022-11-19 07:48:51,025 INFO L78 Accepts]: Start accepts. Automaton has 3155 states and 4581 transitions. Word has length 47 [2022-11-19 07:48:51,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:48:51,027 INFO L495 AbstractCegarLoop]: Abstraction has 3155 states and 4581 transitions. [2022-11-19 07:48:51,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 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) [2022-11-19 07:48:51,027 INFO L276 IsEmpty]: Start isEmpty. Operand 3155 states and 4581 transitions. [2022-11-19 07:48:51,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-19 07:48:51,036 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:48:51,036 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:48:51,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:48:51,037 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 07:48:51,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:48:51,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1795489622, now seen corresponding path program 1 times [2022-11-19 07:48:51,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:48:51,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699199789] [2022-11-19 07:48:51,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:48:51,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:48:51,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:48:53,524 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-19 07:48:53,524 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:48:53,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699199789] [2022-11-19 07:48:53,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699199789] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:48:53,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:48:53,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:48:53,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253140471] [2022-11-19 07:48:53,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:48:53,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:48:53,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:48:53,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:48:53,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:48:53,528 INFO L87 Difference]: Start difference. First operand 3155 states and 4581 transitions. 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, (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) [2022-11-19 07:48:55,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:49:00,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:49:03,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:49:11,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:49:11,339 INFO L93 Difference]: Finished difference Result 3180 states and 4608 transitions. [2022-11-19 07:49:11,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:49:11,340 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, (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 52 [2022-11-19 07:49:11,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:49:11,362 INFO L225 Difference]: With dead ends: 3180 [2022-11-19 07:49:11,362 INFO L226 Difference]: Without dead ends: 3178 [2022-11-19 07:49:11,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:49:11,366 INFO L413 NwaCegarLoop]: 3895 mSDtfsCounter, 4154 mSDsluCounter, 8118 mSDsCounter, 0 mSdLazyCounter, 1437 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4167 SdHoareTripleChecker+Valid, 12013 SdHoareTripleChecker+Invalid, 1440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1437 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:49:11,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4167 Valid, 12013 Invalid, 1440 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1437 Invalid, 2 Unknown, 0 Unchecked, 17.3s Time] [2022-11-19 07:49:11,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3178 states. [2022-11-19 07:49:11,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3178 to 3176. [2022-11-19 07:49:11,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3176 states, 1706 states have (on average 1.2555685814771396) internal successors, (2142), 1818 states have internal predecessors, (2142), 1232 states have call successors, (1232), 236 states have call predecessors, (1232), 235 states have return successors, (1229), 1193 states have call predecessors, (1229), 1229 states have call successors, (1229) [2022-11-19 07:49:11,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3176 states to 3176 states and 4603 transitions. [2022-11-19 07:49:11,795 INFO L78 Accepts]: Start accepts. Automaton has 3176 states and 4603 transitions. Word has length 52 [2022-11-19 07:49:11,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:49:11,796 INFO L495 AbstractCegarLoop]: Abstraction has 3176 states and 4603 transitions. [2022-11-19 07:49:11,796 INFO L496 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, (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) [2022-11-19 07:49:11,797 INFO L276 IsEmpty]: Start isEmpty. Operand 3176 states and 4603 transitions. [2022-11-19 07:49:11,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-19 07:49:11,803 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:49:11,804 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:49:11,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:49:11,809 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 07:49:11,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:49:11,818 INFO L85 PathProgramCache]: Analyzing trace with hash -2050518630, now seen corresponding path program 1 times [2022-11-19 07:49:11,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:49:11,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669944808] [2022-11-19 07:49:11,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:49:11,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:49:12,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:49:14,053 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-19 07:49:14,053 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:49:14,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669944808] [2022-11-19 07:49:14,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669944808] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:49:14,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:49:14,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:49:14,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005559838] [2022-11-19 07:49:14,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:49:14,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:49:14,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:49:14,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:49:14,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:49:14,055 INFO L87 Difference]: Start difference. First operand 3176 states and 4603 transitions. 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, (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) [2022-11-19 07:49:16,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:49:23,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:49:31,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:49:31,238 INFO L93 Difference]: Finished difference Result 3184 states and 4611 transitions. [2022-11-19 07:49:31,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:49:31,239 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, (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 57 [2022-11-19 07:49:31,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:49:31,262 INFO L225 Difference]: With dead ends: 3184 [2022-11-19 07:49:31,262 INFO L226 Difference]: Without dead ends: 3182 [2022-11-19 07:49:31,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:49:31,267 INFO L413 NwaCegarLoop]: 3895 mSDtfsCounter, 4154 mSDsluCounter, 8118 mSDsCounter, 0 mSdLazyCounter, 1437 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4166 SdHoareTripleChecker+Valid, 12013 SdHoareTripleChecker+Invalid, 1440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1437 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:49:31,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4166 Valid, 12013 Invalid, 1440 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1437 Invalid, 2 Unknown, 0 Unchecked, 16.8s Time] [2022-11-19 07:49:31,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3182 states. [2022-11-19 07:49:31,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3182 to 3180. [2022-11-19 07:49:31,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3180 states, 1709 states have (on average 1.2551199531889994) internal successors, (2145), 1821 states have internal predecessors, (2145), 1232 states have call successors, (1232), 237 states have call predecessors, (1232), 236 states have return successors, (1229), 1193 states have call predecessors, (1229), 1229 states have call successors, (1229) [2022-11-19 07:49:31,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3180 states to 3180 states and 4606 transitions. [2022-11-19 07:49:31,497 INFO L78 Accepts]: Start accepts. Automaton has 3180 states and 4606 transitions. Word has length 57 [2022-11-19 07:49:31,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:49:31,497 INFO L495 AbstractCegarLoop]: Abstraction has 3180 states and 4606 transitions. [2022-11-19 07:49:31,498 INFO L496 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, (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) [2022-11-19 07:49:31,498 INFO L276 IsEmpty]: Start isEmpty. Operand 3180 states and 4606 transitions. [2022-11-19 07:49:31,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-19 07:49:31,499 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:49:31,500 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:49:31,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:49:31,500 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 07:49:31,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:49:31,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1811341718, now seen corresponding path program 1 times [2022-11-19 07:49:31,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:49:31,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962061979] [2022-11-19 07:49:31,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:49:31,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:49:32,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:49:33,708 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-19 07:49:33,708 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:49:33,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962061979] [2022-11-19 07:49:33,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962061979] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:49:33,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:49:33,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:49:33,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528115396] [2022-11-19 07:49:33,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:49:33,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:49:33,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:49:33,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:49:33,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:49:33,711 INFO L87 Difference]: Start difference. First operand 3180 states and 4606 transitions. 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, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-19 07:49:35,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:49:42,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:49:54,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:49:54,123 INFO L93 Difference]: Finished difference Result 5784 states and 8458 transitions. [2022-11-19 07:49:54,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 07:49:54,124 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, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 62 [2022-11-19 07:49:54,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:49:54,166 INFO L225 Difference]: With dead ends: 5784 [2022-11-19 07:49:54,166 INFO L226 Difference]: Without dead ends: 5782 [2022-11-19 07:49:54,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:49:54,176 INFO L413 NwaCegarLoop]: 4984 mSDtfsCounter, 4147 mSDsluCounter, 13398 mSDsCounter, 0 mSdLazyCounter, 1859 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4156 SdHoareTripleChecker+Valid, 18382 SdHoareTripleChecker+Invalid, 1864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1859 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:49:54,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4156 Valid, 18382 Invalid, 1864 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1859 Invalid, 2 Unknown, 0 Unchecked, 19.8s Time] [2022-11-19 07:49:54,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5782 states. [2022-11-19 07:49:54,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5782 to 5774. [2022-11-19 07:49:54,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5774 states, 3123 states have (on average 1.2587255843739993) internal successors, (3931), 3330 states have internal predecessors, (3931), 2216 states have call successors, (2216), 439 states have call predecessors, (2216), 432 states have return successors, (2304), 2134 states have call predecessors, (2304), 2210 states have call successors, (2304) [2022-11-19 07:49:54,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5774 states to 5774 states and 8451 transitions. [2022-11-19 07:49:54,867 INFO L78 Accepts]: Start accepts. Automaton has 5774 states and 8451 transitions. Word has length 62 [2022-11-19 07:49:54,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:49:54,867 INFO L495 AbstractCegarLoop]: Abstraction has 5774 states and 8451 transitions. [2022-11-19 07:49:54,868 INFO L496 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, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-19 07:49:54,869 INFO L276 IsEmpty]: Start isEmpty. Operand 5774 states and 8451 transitions. [2022-11-19 07:49:54,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-19 07:49:54,871 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:49:54,871 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:49:54,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:49:54,872 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 07:49:54,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:49:54,873 INFO L85 PathProgramCache]: Analyzing trace with hash 545666298, now seen corresponding path program 1 times [2022-11-19 07:49:54,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:49:54,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949404151] [2022-11-19 07:49:54,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:49:54,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:49:55,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:49:57,115 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 07:49:57,115 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:49:57,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949404151] [2022-11-19 07:49:57,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949404151] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:49:57,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:49:57,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:49:57,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821780182] [2022-11-19 07:49:57,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:49:57,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:49:57,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:49:57,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:49:57,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:49:57,117 INFO L87 Difference]: Start difference. First operand 5774 states and 8451 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-19 07:49:59,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:50:06,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:50:13,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:50:13,411 INFO L93 Difference]: Finished difference Result 5786 states and 8463 transitions. [2022-11-19 07:50:13,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:50:13,412 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 75 [2022-11-19 07:50:13,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:50:13,450 INFO L225 Difference]: With dead ends: 5786 [2022-11-19 07:50:13,451 INFO L226 Difference]: Without dead ends: 5784 [2022-11-19 07:50:13,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:50:13,456 INFO L413 NwaCegarLoop]: 3895 mSDtfsCounter, 4148 mSDsluCounter, 8118 mSDsCounter, 0 mSdLazyCounter, 1437 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4158 SdHoareTripleChecker+Valid, 12013 SdHoareTripleChecker+Invalid, 1440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1437 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:50:13,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4158 Valid, 12013 Invalid, 1440 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1437 Invalid, 2 Unknown, 0 Unchecked, 15.8s Time] [2022-11-19 07:50:13,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5784 states. [2022-11-19 07:50:13,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5784 to 5784. [2022-11-19 07:50:13,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5784 states, 3130 states have (on average 1.25814696485623) internal successors, (3938), 3337 states have internal predecessors, (3938), 2216 states have call successors, (2216), 441 states have call predecessors, (2216), 435 states have return successors, (2306), 2135 states have call predecessors, (2306), 2210 states have call successors, (2306) [2022-11-19 07:50:13,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5784 states to 5784 states and 8460 transitions. [2022-11-19 07:50:13,975 INFO L78 Accepts]: Start accepts. Automaton has 5784 states and 8460 transitions. Word has length 75 [2022-11-19 07:50:13,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:50:13,977 INFO L495 AbstractCegarLoop]: Abstraction has 5784 states and 8460 transitions. [2022-11-19 07:50:13,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-19 07:50:13,978 INFO L276 IsEmpty]: Start isEmpty. Operand 5784 states and 8460 transitions. [2022-11-19 07:50:13,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-19 07:50:13,980 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:50:13,980 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:50:13,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:50:13,981 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 07:50:13,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:50:13,981 INFO L85 PathProgramCache]: Analyzing trace with hash -183196714, now seen corresponding path program 1 times [2022-11-19 07:50:13,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:50:13,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605293510] [2022-11-19 07:50:13,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:50:13,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:50:14,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:50:15,919 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-19 07:50:15,919 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:50:15,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605293510] [2022-11-19 07:50:15,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605293510] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:50:15,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:50:15,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:50:15,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580516518] [2022-11-19 07:50:15,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:50:15,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:50:15,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:50:15,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:50:15,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:50:15,921 INFO L87 Difference]: Start difference. First operand 5784 states and 8460 transitions. 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, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-19 07:50:18,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:50:25,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:50:32,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:50:32,430 INFO L93 Difference]: Finished difference Result 5794 states and 8469 transitions. [2022-11-19 07:50:32,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:50:32,437 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, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 72 [2022-11-19 07:50:32,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:50:32,472 INFO L225 Difference]: With dead ends: 5794 [2022-11-19 07:50:32,472 INFO L226 Difference]: Without dead ends: 5792 [2022-11-19 07:50:32,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:50:32,476 INFO L413 NwaCegarLoop]: 3895 mSDtfsCounter, 4154 mSDsluCounter, 8118 mSDsCounter, 0 mSdLazyCounter, 1437 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4163 SdHoareTripleChecker+Valid, 12013 SdHoareTripleChecker+Invalid, 1440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1437 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2022-11-19 07:50:32,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4163 Valid, 12013 Invalid, 1440 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1437 Invalid, 2 Unknown, 0 Unchecked, 15.9s Time] [2022-11-19 07:50:32,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5792 states. [2022-11-19 07:50:32,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5792 to 5792. [2022-11-19 07:50:32,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5792 states, 3136 states have (on average 1.2576530612244898) internal successors, (3944), 3343 states have internal predecessors, (3944), 2216 states have call successors, (2216), 443 states have call predecessors, (2216), 437 states have return successors, (2306), 2135 states have call predecessors, (2306), 2210 states have call successors, (2306) [2022-11-19 07:50:32,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5792 states to 5792 states and 8466 transitions. [2022-11-19 07:50:32,998 INFO L78 Accepts]: Start accepts. Automaton has 5792 states and 8466 transitions. Word has length 72 [2022-11-19 07:50:32,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:50:32,998 INFO L495 AbstractCegarLoop]: Abstraction has 5792 states and 8466 transitions. [2022-11-19 07:50:32,999 INFO L496 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, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-19 07:50:32,999 INFO L276 IsEmpty]: Start isEmpty. Operand 5792 states and 8466 transitions. [2022-11-19 07:50:33,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-19 07:50:33,001 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:50:33,001 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 4, 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] [2022-11-19 07:50:33,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 07:50:33,002 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 07:50:33,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:50:33,002 INFO L85 PathProgramCache]: Analyzing trace with hash -479796678, now seen corresponding path program 1 times [2022-11-19 07:50:33,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:50:33,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927348515] [2022-11-19 07:50:33,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:50:33,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:50:33,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:50:35,036 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-11-19 07:50:35,037 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:50:35,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927348515] [2022-11-19 07:50:35,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927348515] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:50:35,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:50:35,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:50:35,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169262373] [2022-11-19 07:50:35,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:50:35,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:50:35,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:50:35,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:50:35,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:50:35,039 INFO L87 Difference]: Start difference. First operand 5792 states and 8466 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (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) [2022-11-19 07:50:37,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:50:43,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:50:45,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:50:51,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:50:51,969 INFO L93 Difference]: Finished difference Result 5802 states and 8475 transitions. [2022-11-19 07:50:51,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:50:51,970 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (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 85 [2022-11-19 07:50:51,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:50:51,996 INFO L225 Difference]: With dead ends: 5802 [2022-11-19 07:50:51,997 INFO L226 Difference]: Without dead ends: 5800 [2022-11-19 07:50:52,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:50:52,001 INFO L413 NwaCegarLoop]: 3895 mSDtfsCounter, 4148 mSDsluCounter, 8118 mSDsCounter, 0 mSdLazyCounter, 1437 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4156 SdHoareTripleChecker+Valid, 12013 SdHoareTripleChecker+Invalid, 1440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1437 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:50:52,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4156 Valid, 12013 Invalid, 1440 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1437 Invalid, 2 Unknown, 0 Unchecked, 16.3s Time] [2022-11-19 07:50:52,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5800 states. [2022-11-19 07:50:52,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5800 to 5800. [2022-11-19 07:50:52,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5800 states, 3142 states have (on average 1.2571610439210694) internal successors, (3950), 3349 states have internal predecessors, (3950), 2216 states have call successors, (2216), 445 states have call predecessors, (2216), 439 states have return successors, (2306), 2135 states have call predecessors, (2306), 2210 states have call successors, (2306) [2022-11-19 07:50:52,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5800 states to 5800 states and 8472 transitions. [2022-11-19 07:50:52,504 INFO L78 Accepts]: Start accepts. Automaton has 5800 states and 8472 transitions. Word has length 85 [2022-11-19 07:50:52,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:50:52,505 INFO L495 AbstractCegarLoop]: Abstraction has 5800 states and 8472 transitions. [2022-11-19 07:50:52,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (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) [2022-11-19 07:50:52,506 INFO L276 IsEmpty]: Start isEmpty. Operand 5800 states and 8472 transitions. [2022-11-19 07:50:52,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-11-19 07:50:52,508 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:50:52,509 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 4, 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] [2022-11-19 07:50:52,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 07:50:52,509 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 07:50:52,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:50:52,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1323652086, now seen corresponding path program 1 times [2022-11-19 07:50:52,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:50:52,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835511733] [2022-11-19 07:50:52,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:50:52,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:50:53,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:50:54,552 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-11-19 07:50:54,552 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:50:54,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835511733] [2022-11-19 07:50:54,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835511733] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:50:54,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:50:54,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:50:54,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525727595] [2022-11-19 07:50:54,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:50:54,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:50:54,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:50:54,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:50:54,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:50:54,555 INFO L87 Difference]: Start difference. First operand 5800 states and 8472 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (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) [2022-11-19 07:50:56,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:51:04,032 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:51:09,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:51:12,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:51:12,284 INFO L93 Difference]: Finished difference Result 5810 states and 8481 transitions. [2022-11-19 07:51:12,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:51:12,285 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (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 90 [2022-11-19 07:51:12,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:51:12,316 INFO L225 Difference]: With dead ends: 5810 [2022-11-19 07:51:12,316 INFO L226 Difference]: Without dead ends: 5808 [2022-11-19 07:51:12,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:51:12,322 INFO L413 NwaCegarLoop]: 3895 mSDtfsCounter, 4148 mSDsluCounter, 8118 mSDsCounter, 0 mSdLazyCounter, 1437 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4155 SdHoareTripleChecker+Valid, 12013 SdHoareTripleChecker+Invalid, 1440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1437 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:51:12,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4155 Valid, 12013 Invalid, 1440 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1437 Invalid, 2 Unknown, 0 Unchecked, 17.2s Time] [2022-11-19 07:51:12,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5808 states. [2022-11-19 07:51:12,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5808 to 5808. [2022-11-19 07:51:12,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5808 states, 3148 states have (on average 1.2566709021601017) internal successors, (3956), 3355 states have internal predecessors, (3956), 2216 states have call successors, (2216), 447 states have call predecessors, (2216), 441 states have return successors, (2306), 2135 states have call predecessors, (2306), 2210 states have call successors, (2306) [2022-11-19 07:51:12,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5808 states to 5808 states and 8478 transitions. [2022-11-19 07:51:12,952 INFO L78 Accepts]: Start accepts. Automaton has 5808 states and 8478 transitions. Word has length 90 [2022-11-19 07:51:12,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:51:12,953 INFO L495 AbstractCegarLoop]: Abstraction has 5808 states and 8478 transitions. [2022-11-19 07:51:12,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (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) [2022-11-19 07:51:12,953 INFO L276 IsEmpty]: Start isEmpty. Operand 5808 states and 8478 transitions. [2022-11-19 07:51:12,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-19 07:51:12,955 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:51:12,955 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 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] [2022-11-19 07:51:12,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 07:51:12,955 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 07:51:12,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:51:12,956 INFO L85 PathProgramCache]: Analyzing trace with hash 468914522, now seen corresponding path program 1 times [2022-11-19 07:51:12,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:51:12,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959442927] [2022-11-19 07:51:12,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:51:12,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:51:13,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:51:15,057 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-11-19 07:51:15,057 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:51:15,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959442927] [2022-11-19 07:51:15,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959442927] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:51:15,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:51:15,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:51:15,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102380086] [2022-11-19 07:51:15,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:51:15,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:51:15,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:51:15,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:51:15,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:51:15,059 INFO L87 Difference]: Start difference. First operand 5808 states and 8478 transitions. 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, (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) [2022-11-19 07:51:17,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:51:24,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:51:32,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:51:32,319 INFO L93 Difference]: Finished difference Result 5818 states and 8487 transitions. [2022-11-19 07:51:32,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:51:32,320 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, (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 87 [2022-11-19 07:51:32,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:51:32,348 INFO L225 Difference]: With dead ends: 5818 [2022-11-19 07:51:32,349 INFO L226 Difference]: Without dead ends: 5816 [2022-11-19 07:51:32,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:51:32,354 INFO L413 NwaCegarLoop]: 3895 mSDtfsCounter, 4154 mSDsluCounter, 8118 mSDsCounter, 0 mSdLazyCounter, 1437 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4160 SdHoareTripleChecker+Valid, 12013 SdHoareTripleChecker+Invalid, 1440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1437 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.7s IncrementalHoareTripleChecker+Time [2022-11-19 07:51:32,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4160 Valid, 12013 Invalid, 1440 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1437 Invalid, 2 Unknown, 0 Unchecked, 16.7s Time] [2022-11-19 07:51:32,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5816 states. [2022-11-19 07:51:32,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5816 to 5816. [2022-11-19 07:51:32,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5816 states, 3154 states have (on average 1.2561826252377932) internal successors, (3962), 3361 states have internal predecessors, (3962), 2216 states have call successors, (2216), 449 states have call predecessors, (2216), 443 states have return successors, (2306), 2135 states have call predecessors, (2306), 2210 states have call successors, (2306) [2022-11-19 07:51:32,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5816 states to 5816 states and 8484 transitions. [2022-11-19 07:51:32,946 INFO L78 Accepts]: Start accepts. Automaton has 5816 states and 8484 transitions. Word has length 87 [2022-11-19 07:51:32,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:51:32,947 INFO L495 AbstractCegarLoop]: Abstraction has 5816 states and 8484 transitions. [2022-11-19 07:51:32,947 INFO L496 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, (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) [2022-11-19 07:51:32,947 INFO L276 IsEmpty]: Start isEmpty. Operand 5816 states and 8484 transitions. [2022-11-19 07:51:32,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-19 07:51:32,949 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:51:32,950 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 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] [2022-11-19 07:51:32,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-19 07:51:32,950 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 07:51:32,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:51:32,951 INFO L85 PathProgramCache]: Analyzing trace with hash -126629802, now seen corresponding path program 1 times [2022-11-19 07:51:32,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:51:32,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405771484] [2022-11-19 07:51:32,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:51:32,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:51:33,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:51:34,737 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-11-19 07:51:34,737 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:51:34,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405771484] [2022-11-19 07:51:34,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405771484] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:51:34,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:51:34,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:51:34,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694900658] [2022-11-19 07:51:34,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:51:34,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:51:34,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:51:34,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:51:34,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:51:34,739 INFO L87 Difference]: Start difference. First operand 5816 states and 8484 transitions. 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, (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) [2022-11-19 07:51:36,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:51:43,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:51:46,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:51:54,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:51:54,201 INFO L93 Difference]: Finished difference Result 6533 states and 9407 transitions. [2022-11-19 07:51:54,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:51:54,202 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, (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 92 [2022-11-19 07:51:54,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:51:54,234 INFO L225 Difference]: With dead ends: 6533 [2022-11-19 07:51:54,234 INFO L226 Difference]: Without dead ends: 6531 [2022-11-19 07:51:54,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:51:54,240 INFO L413 NwaCegarLoop]: 4080 mSDtfsCounter, 3470 mSDsluCounter, 9246 mSDsCounter, 0 mSdLazyCounter, 1535 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3473 SdHoareTripleChecker+Valid, 13326 SdHoareTripleChecker+Invalid, 1540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1535 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:51:54,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3473 Valid, 13326 Invalid, 1540 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1535 Invalid, 3 Unknown, 0 Unchecked, 18.8s Time] [2022-11-19 07:51:54,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6531 states. [2022-11-19 07:51:54,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6531 to 6523. [2022-11-19 07:51:55,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6523 states, 3492 states have (on average 1.2451317296678122) internal successors, (4348), 3719 states have internal predecessors, (4348), 2463 states have call successors, (2463), 575 states have call predecessors, (2463), 565 states have return successors, (2587), 2369 states have call predecessors, (2587), 2457 states have call successors, (2587) [2022-11-19 07:51:55,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6523 states to 6523 states and 9398 transitions. [2022-11-19 07:51:55,049 INFO L78 Accepts]: Start accepts. Automaton has 6523 states and 9398 transitions. Word has length 92 [2022-11-19 07:51:55,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:51:55,050 INFO L495 AbstractCegarLoop]: Abstraction has 6523 states and 9398 transitions. [2022-11-19 07:51:55,050 INFO L496 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, (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) [2022-11-19 07:51:55,050 INFO L276 IsEmpty]: Start isEmpty. Operand 6523 states and 9398 transitions. [2022-11-19 07:51:55,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-19 07:51:55,053 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:51:55,053 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 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] [2022-11-19 07:51:55,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-19 07:51:55,054 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 07:51:55,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:51:55,055 INFO L85 PathProgramCache]: Analyzing trace with hash 739714714, now seen corresponding path program 1 times [2022-11-19 07:51:55,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:51:55,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210413761] [2022-11-19 07:51:55,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:51:55,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:51:55,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:51:56,677 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-11-19 07:51:56,677 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:51:56,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210413761] [2022-11-19 07:51:56,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210413761] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:51:56,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:51:56,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:51:56,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107832416] [2022-11-19 07:51:56,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:51:56,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:51:56,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:51:56,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:51:56,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:51:56,679 INFO L87 Difference]: Start difference. First operand 6523 states and 9398 transitions. 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, (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) [2022-11-19 07:51:58,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:52:06,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:52:14,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:52:14,175 INFO L93 Difference]: Finished difference Result 6533 states and 9407 transitions. [2022-11-19 07:52:14,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:52:14,176 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, (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 97 [2022-11-19 07:52:14,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:52:14,207 INFO L225 Difference]: With dead ends: 6533 [2022-11-19 07:52:14,207 INFO L226 Difference]: Without dead ends: 6531 [2022-11-19 07:52:14,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:52:14,214 INFO L413 NwaCegarLoop]: 3895 mSDtfsCounter, 4154 mSDsluCounter, 8118 mSDsCounter, 0 mSdLazyCounter, 1437 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4158 SdHoareTripleChecker+Valid, 12013 SdHoareTripleChecker+Invalid, 1440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1437 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:52:14,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4158 Valid, 12013 Invalid, 1440 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1437 Invalid, 2 Unknown, 0 Unchecked, 16.8s Time] [2022-11-19 07:52:14,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6531 states. [2022-11-19 07:52:14,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6531 to 6531. [2022-11-19 07:52:14,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6531 states, 3498 states have (on average 1.2447112635791882) internal successors, (4354), 3725 states have internal predecessors, (4354), 2463 states have call successors, (2463), 577 states have call predecessors, (2463), 567 states have return successors, (2587), 2369 states have call predecessors, (2587), 2457 states have call successors, (2587) [2022-11-19 07:52:14,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6531 states to 6531 states and 9404 transitions. [2022-11-19 07:52:14,924 INFO L78 Accepts]: Start accepts. Automaton has 6531 states and 9404 transitions. Word has length 97 [2022-11-19 07:52:14,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:52:14,927 INFO L495 AbstractCegarLoop]: Abstraction has 6531 states and 9404 transitions. [2022-11-19 07:52:14,927 INFO L496 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, (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) [2022-11-19 07:52:14,928 INFO L276 IsEmpty]: Start isEmpty. Operand 6531 states and 9404 transitions. [2022-11-19 07:52:14,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-19 07:52:14,930 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:52:14,930 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 4, 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] [2022-11-19 07:52:14,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-19 07:52:14,931 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 07:52:14,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:52:14,931 INFO L85 PathProgramCache]: Analyzing trace with hash -323843978, now seen corresponding path program 1 times [2022-11-19 07:52:14,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:52:14,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894195637] [2022-11-19 07:52:14,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:52:14,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:52:15,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:52:16,706 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2022-11-19 07:52:16,707 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:52:16,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894195637] [2022-11-19 07:52:16,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894195637] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:52:16,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:52:16,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:52:16,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070922015] [2022-11-19 07:52:16,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:52:16,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:52:16,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:52:16,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:52:16,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:52:16,709 INFO L87 Difference]: Start difference. First operand 6531 states and 9404 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-19 07:52:18,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:52:26,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:52:35,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:52:35,592 INFO L93 Difference]: Finished difference Result 6541 states and 9413 transitions. [2022-11-19 07:52:35,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:52:35,593 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 110 [2022-11-19 07:52:35,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:52:35,625 INFO L225 Difference]: With dead ends: 6541 [2022-11-19 07:52:35,625 INFO L226 Difference]: Without dead ends: 6537 [2022-11-19 07:52:35,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:52:35,632 INFO L413 NwaCegarLoop]: 3895 mSDtfsCounter, 4148 mSDsluCounter, 8118 mSDsCounter, 0 mSdLazyCounter, 1437 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4151 SdHoareTripleChecker+Valid, 12013 SdHoareTripleChecker+Invalid, 1440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1437 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:52:35,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4151 Valid, 12013 Invalid, 1440 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1437 Invalid, 2 Unknown, 0 Unchecked, 18.2s Time] [2022-11-19 07:52:35,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6537 states. [2022-11-19 07:52:36,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6537 to 6537. [2022-11-19 07:52:36,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6537 states, 3503 states have (on average 1.2440765058521268) internal successors, (4358), 3729 states have internal predecessors, (4358), 2463 states have call successors, (2463), 579 states have call predecessors, (2463), 568 states have return successors, (2587), 2369 states have call predecessors, (2587), 2457 states have call successors, (2587) [2022-11-19 07:52:36,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6537 states to 6537 states and 9408 transitions. [2022-11-19 07:52:36,347 INFO L78 Accepts]: Start accepts. Automaton has 6537 states and 9408 transitions. Word has length 110 [2022-11-19 07:52:36,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:52:36,348 INFO L495 AbstractCegarLoop]: Abstraction has 6537 states and 9408 transitions. [2022-11-19 07:52:36,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-19 07:52:36,349 INFO L276 IsEmpty]: Start isEmpty. Operand 6537 states and 9408 transitions. [2022-11-19 07:52:36,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-19 07:52:36,352 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:52:36,352 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 5, 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] [2022-11-19 07:52:36,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-19 07:52:36,352 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 07:52:36,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:52:36,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1272874843, now seen corresponding path program 1 times [2022-11-19 07:52:36,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:52:36,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443246778] [2022-11-19 07:52:36,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:52:36,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:52:36,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:52:39,899 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-11-19 07:52:39,899 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:52:39,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443246778] [2022-11-19 07:52:39,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443246778] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:52:39,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:52:39,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:52:39,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967943716] [2022-11-19 07:52:39,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:52:39,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:52:39,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:52:39,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:52:39,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:52:39,902 INFO L87 Difference]: Start difference. First operand 6537 states and 9408 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-19 07:52:42,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:52:50,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:52:57,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:52:57,788 INFO L93 Difference]: Finished difference Result 6549 states and 9418 transitions. [2022-11-19 07:52:57,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:52:57,789 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 120 [2022-11-19 07:52:57,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:52:57,821 INFO L225 Difference]: With dead ends: 6549 [2022-11-19 07:52:57,821 INFO L226 Difference]: Without dead ends: 6547 [2022-11-19 07:52:57,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:52:57,828 INFO L413 NwaCegarLoop]: 3902 mSDtfsCounter, 4118 mSDsluCounter, 8168 mSDsCounter, 0 mSdLazyCounter, 1438 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4124 SdHoareTripleChecker+Valid, 12070 SdHoareTripleChecker+Invalid, 1442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1438 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:52:57,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4124 Valid, 12070 Invalid, 1442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1438 Invalid, 2 Unknown, 0 Unchecked, 17.2s Time] [2022-11-19 07:52:57,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6547 states. [2022-11-19 07:52:58,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6547 to 6545. [2022-11-19 07:52:58,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6545 states, 3509 states have (on average 1.24365916215446) internal successors, (4364), 3735 states have internal predecessors, (4364), 2463 states have call successors, (2463), 581 states have call predecessors, (2463), 570 states have return successors, (2587), 2369 states have call predecessors, (2587), 2457 states have call successors, (2587) [2022-11-19 07:52:58,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6545 states to 6545 states and 9414 transitions. [2022-11-19 07:52:58,465 INFO L78 Accepts]: Start accepts. Automaton has 6545 states and 9414 transitions. Word has length 120 [2022-11-19 07:52:58,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:52:58,466 INFO L495 AbstractCegarLoop]: Abstraction has 6545 states and 9414 transitions. [2022-11-19 07:52:58,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-19 07:52:58,466 INFO L276 IsEmpty]: Start isEmpty. Operand 6545 states and 9414 transitions. [2022-11-19 07:52:58,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-19 07:52:58,469 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:52:58,470 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:52:58,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-19 07:52:58,470 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 07:52:58,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:52:58,471 INFO L85 PathProgramCache]: Analyzing trace with hash 132491770, now seen corresponding path program 1 times [2022-11-19 07:52:58,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:52:58,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377564572] [2022-11-19 07:52:58,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:52:58,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:52:59,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:00,586 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2022-11-19 07:53:00,586 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:53:00,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377564572] [2022-11-19 07:53:00,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377564572] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:53:00,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:53:00,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:53:00,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681058893] [2022-11-19 07:53:00,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:53:00,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:53:00,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:53:00,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:53:00,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:53:00,588 INFO L87 Difference]: Start difference. First operand 6545 states and 9414 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-19 07:53:02,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:53:07,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:53:11,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []