./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.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_f1661e3f-d033-45cb-85a7-2d9f60f6d234/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1661e3f-d033-45cb-85a7-2d9f60f6d234/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_f1661e3f-d033-45cb-85a7-2d9f60f6d234/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1661e3f-d033-45cb-85a7-2d9f60f6d234/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1661e3f-d033-45cb-85a7-2d9f60f6d234/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_f1661e3f-d033-45cb-85a7-2d9f60f6d234/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 bce5aa2319ae110f8a0b01ff2a22780545859bbd4eceb3e6d7a0268461602692 --- 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 07:18:32,946 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:18:32,948 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:18:32,967 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:18:32,967 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:18:32,969 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:18:32,970 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:18:32,972 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:18:32,974 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:18:32,975 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:18:32,976 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:18:32,978 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:18:32,978 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:18:32,979 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:18:32,981 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:18:32,982 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:18:32,983 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:18:32,984 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:18:32,986 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:18:32,988 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:18:32,990 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:18:32,991 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:18:32,992 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:18:32,993 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:18:32,997 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:18:32,998 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:18:32,998 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:18:32,999 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:18:33,000 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:18:33,001 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:18:33,001 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:18:33,002 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:18:33,003 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:18:33,004 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:18:33,005 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:18:33,005 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:18:33,006 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:18:33,006 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:18:33,007 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:18:33,008 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:18:33,008 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:18:33,009 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1661e3f-d033-45cb-85a7-2d9f60f6d234/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 07:18:33,041 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:18:33,049 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:18:33,050 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:18:33,050 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:18:33,051 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:18:33,051 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:18:33,052 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:18:33,052 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:18:33,052 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:18:33,052 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:18:33,053 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:18:33,054 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:18:33,054 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:18:33,054 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:18:33,054 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:18:33,055 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:18:33,055 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:18:33,055 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:18:33,056 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:18:33,056 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:18:33,056 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:18:33,056 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:18:33,057 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:18:33,057 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:18:33,057 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:18:33,057 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:18:33,057 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:18:33,058 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:18:33,058 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:18:33,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:18:33,058 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:18:33,059 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:18:33,059 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:18:33,059 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:18:33,060 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:18:33,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:18:33,061 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:18:33,061 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:18:33,061 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_f1661e3f-d033-45cb-85a7-2d9f60f6d234/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1661e3f-d033-45cb-85a7-2d9f60f6d234/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bce5aa2319ae110f8a0b01ff2a22780545859bbd4eceb3e6d7a0268461602692 [2022-11-19 07:18:33,358 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:18:33,389 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:18:33,392 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:18:33,393 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:18:33,394 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:18:33,395 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1661e3f-d033-45cb-85a7-2d9f60f6d234/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i [2022-11-19 07:18:33,470 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1661e3f-d033-45cb-85a7-2d9f60f6d234/bin/utaipan-I9t0OCRTmS/data/6b61bca6e/cdec4cd267f54b368e4c6735e4b1396c/FLAG60dca1565 [2022-11-19 07:18:34,576 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:18:34,577 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1661e3f-d033-45cb-85a7-2d9f60f6d234/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i [2022-11-19 07:18:34,650 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1661e3f-d033-45cb-85a7-2d9f60f6d234/bin/utaipan-I9t0OCRTmS/data/6b61bca6e/cdec4cd267f54b368e4c6735e4b1396c/FLAG60dca1565 [2022-11-19 07:18:34,929 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1661e3f-d033-45cb-85a7-2d9f60f6d234/bin/utaipan-I9t0OCRTmS/data/6b61bca6e/cdec4cd267f54b368e4c6735e4b1396c [2022-11-19 07:18:34,932 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:18:34,935 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:18:34,942 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:18:34,943 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:18:34,946 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:18:34,947 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:18:34" (1/1) ... [2022-11-19 07:18:34,948 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@522ab622 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:34, skipping insertion in model container [2022-11-19 07:18:34,949 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:18:34" (1/1) ... [2022-11-19 07:18:34,958 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:18:35,178 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:18:39,502 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_f1661e3f-d033-45cb-85a7-2d9f60f6d234/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588044,588057] [2022-11-19 07:18:39,508 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_f1661e3f-d033-45cb-85a7-2d9f60f6d234/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588213,588226] [2022-11-19 07:18:39,509 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_f1661e3f-d033-45cb-85a7-2d9f60f6d234/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588380,588393] [2022-11-19 07:18:39,509 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_f1661e3f-d033-45cb-85a7-2d9f60f6d234/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588548,588561] [2022-11-19 07:18:39,533 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:18:39,641 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:18:40,485 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_f1661e3f-d033-45cb-85a7-2d9f60f6d234/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588044,588057] [2022-11-19 07:18:40,485 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_f1661e3f-d033-45cb-85a7-2d9f60f6d234/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588213,588226] [2022-11-19 07:18:40,486 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_f1661e3f-d033-45cb-85a7-2d9f60f6d234/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588380,588393] [2022-11-19 07:18:40,486 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_f1661e3f-d033-45cb-85a7-2d9f60f6d234/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588548,588561] [2022-11-19 07:18:40,494 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:18:40,709 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:18:40,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:40 WrapperNode [2022-11-19 07:18:40,711 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:18:40,712 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:18:40,712 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:18:40,712 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:18:40,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:40" (1/1) ... [2022-11-19 07:18:40,856 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:40" (1/1) ... [2022-11-19 07:18:41,172 INFO L138 Inliner]: procedures = 539, calls = 4276, calls flagged for inlining = 262, calls inlined = 249, statements flattened = 8531 [2022-11-19 07:18:41,177 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:18:41,178 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:18:41,178 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:18:41,179 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:18:41,194 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:40" (1/1) ... [2022-11-19 07:18:41,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:40" (1/1) ... [2022-11-19 07:18:41,251 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:40" (1/1) ... [2022-11-19 07:18:41,252 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:40" (1/1) ... [2022-11-19 07:18:41,494 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:40" (1/1) ... [2022-11-19 07:18:41,531 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:40" (1/1) ... [2022-11-19 07:18:41,618 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:40" (1/1) ... [2022-11-19 07:18:41,772 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:40" (1/1) ... [2022-11-19 07:18:41,851 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:18:41,852 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:18:41,852 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:18:41,852 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:18:41,853 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:40" (1/1) ... [2022-11-19 07:18:41,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:18:41,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1661e3f-d033-45cb-85a7-2d9f60f6d234/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:18:41,888 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1661e3f-d033-45cb-85a7-2d9f60f6d234/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:18:41,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1661e3f-d033-45cb-85a7-2d9f60f6d234/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:18:41,928 INFO L130 BoogieDeclarations]: Found specification of procedure video_open [2022-11-19 07:18:41,928 INFO L138 BoogieDeclarations]: Found implementation of procedure video_open [2022-11-19 07:18:41,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 07:18:41,929 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 07:18:41,929 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_streamon [2022-11-19 07:18:41,929 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_streamon [2022-11-19 07:18:41,929 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_unregister_video [2022-11-19 07:18:41,930 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_unregister_video [2022-11-19 07:18:41,930 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_fmt_vid_cap [2022-11-19 07:18:41,930 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_fmt_vid_cap [2022-11-19 07:18:41,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 07:18:41,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 07:18:41,931 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_input [2022-11-19 07:18:41,931 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_input [2022-11-19 07:18:41,931 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_reqbufs [2022-11-19 07:18:41,931 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_reqbufs [2022-11-19 07:18:41,931 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_enum_fmt_vid_cap [2022-11-19 07:18:41,931 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_enum_fmt_vid_cap [2022-11-19 07:18:41,932 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-19 07:18:41,932 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-19 07:18:41,932 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_tvnorm [2022-11-19 07:18:41,932 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_tvnorm [2022-11-19 07:18:41,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_77 [2022-11-19 07:18:41,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_77 [2022-11-19 07:18:41,934 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_tvaudio [2022-11-19 07:18:41,934 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_tvaudio [2022-11-19 07:18:41,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-19 07:18:41,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-19 07:18:41,935 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_s_vid_ctrl [2022-11-19 07:18:41,935 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_s_vid_ctrl [2022-11-19 07:18:41,935 INFO L130 BoogieDeclarations]: Found specification of procedure res_free [2022-11-19 07:18:41,936 INFO L138 BoogieDeclarations]: Found implementation of procedure res_free [2022-11-19 07:18:41,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_slock_of_cx8800_dev [2022-11-19 07:18:41,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_slock_of_cx8800_dev [2022-11-19 07:18:41,936 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-19 07:18:41,936 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-19 07:18:41,937 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_to_dma [2022-11-19 07:18:41,937 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_to_dma [2022-11-19 07:18:41,937 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_shutdown [2022-11-19 07:18:41,937 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_shutdown [2022-11-19 07:18:41,937 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-19 07:18:41,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-19 07:18:41,938 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_fmt_vid_cap [2022-11-19 07:18:41,939 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_fmt_vid_cap [2022-11-19 07:18:41,939 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_newstation [2022-11-19 07:18:41,940 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_newstation [2022-11-19 07:18:41,940 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_std [2022-11-19 07:18:41,940 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_std [2022-11-19 07:18:41,940 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_vdev_init [2022-11-19 07:18:41,940 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_vdev_init [2022-11-19 07:18:41,941 INFO L130 BoogieDeclarations]: Found specification of procedure video_mmap [2022-11-19 07:18:41,941 INFO L138 BoogieDeclarations]: Found implementation of procedure video_mmap [2022-11-19 07:18:41,941 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-19 07:18:41,942 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-19 07:18:41,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-19 07:18:41,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-19 07:18:41,942 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-19 07:18:41,942 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-19 07:18:41,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer [2022-11-19 07:18:41,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer [2022-11-19 07:18:41,943 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std [2022-11-19 07:18:41,943 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std [2022-11-19 07:18:41,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-19 07:18:41,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-19 07:18:41,943 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_poll [2022-11-19 07:18:41,944 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_poll [2022-11-19 07:18:41,944 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_frequency [2022-11-19 07:18:41,945 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_frequency [2022-11-19 07:18:41,945 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_querybuf [2022-11-19 07:18:41,945 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_querybuf [2022-11-19 07:18:41,945 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_register [2022-11-19 07:18:41,945 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_register [2022-11-19 07:18:41,945 INFO L130 BoogieDeclarations]: Found specification of procedure video_devdata [2022-11-19 07:18:41,945 INFO L138 BoogieDeclarations]: Found implementation of procedure video_devdata [2022-11-19 07:18:41,946 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_setup [2022-11-19 07:18:41,946 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_setup [2022-11-19 07:18:41,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:18:41,947 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_stereo [2022-11-19 07:18:41,947 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_stereo [2022-11-19 07:18:41,947 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_vbi_fmt [2022-11-19 07:18:41,947 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_vbi_fmt [2022-11-19 07:18:41,948 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-19 07:18:41,948 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-19 07:18:41,948 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_audio_thread [2022-11-19 07:18:41,949 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_try_fmt_vid_cap [2022-11-19 07:18:41,949 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_try_fmt_vid_cap [2022-11-19 07:18:41,950 INFO L130 BoogieDeclarations]: Found specification of procedure video_ioctl2 [2022-11-19 07:18:41,950 INFO L138 BoogieDeclarations]: Found implementation of procedure video_ioctl2 [2022-11-19 07:18:41,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 07:18:41,950 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~u32~0~TO~int [2022-11-19 07:18:41,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~u32~0~TO~int [2022-11-19 07:18:41,950 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-19 07:18:41,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-19 07:18:41,951 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_restart_vbi_queue [2022-11-19 07:18:41,951 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_restart_vbi_queue [2022-11-19 07:18:41,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:18:41,951 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_finidev [2022-11-19 07:18:41,952 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_finidev [2022-11-19 07:18:41,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-19 07:18:41,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-19 07:18:41,952 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2022-11-19 07:18:41,952 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2022-11-19 07:18:41,952 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_querycap [2022-11-19 07:18:41,953 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_querycap [2022-11-19 07:18:41,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-19 07:18:41,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-19 07:18:41,957 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_freq [2022-11-19 07:18:41,958 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_freq [2022-11-19 07:18:41,958 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-19 07:18:41,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-19 07:18:41,959 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_s_aud_ctrl [2022-11-19 07:18:41,960 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_s_aud_ctrl [2022-11-19 07:18:41,960 INFO L130 BoogieDeclarations]: Found specification of procedure video_read [2022-11-19 07:18:41,960 INFO L138 BoogieDeclarations]: Found implementation of procedure video_read [2022-11-19 07:18:41,965 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-19 07:18:41,966 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-19 07:18:41,966 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_video_mux [2022-11-19 07:18:41,966 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_video_mux [2022-11-19 07:18:41,966 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-19 07:18:41,966 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-19 07:18:41,966 INFO L130 BoogieDeclarations]: Found specification of procedure video_is_registered [2022-11-19 07:18:41,966 INFO L138 BoogieDeclarations]: Found implementation of procedure video_is_registered [2022-11-19 07:18:41,967 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_subscribe_event [2022-11-19 07:18:41,967 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_subscribe_event [2022-11-19 07:18:41,967 INFO L130 BoogieDeclarations]: Found specification of procedure video_unregister_device [2022-11-19 07:18:41,967 INFO L138 BoogieDeclarations]: Found implementation of procedure video_unregister_device [2022-11-19 07:18:41,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-19 07:18:41,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-19 07:18:41,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:18:41,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-19 07:18:41,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-19 07:18:41,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-19 07:18:41,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-19 07:18:41,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-19 07:18:41,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-19 07:18:41,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-19 07:18:41,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-19 07:18:41,969 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_queue_sg_init [2022-11-19 07:18:41,969 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_queue_sg_init [2022-11-19 07:18:41,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:18:41,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-19 07:18:41,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-19 07:18:41,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:18:41,969 INFO L130 BoogieDeclarations]: Found specification of procedure video_release [2022-11-19 07:18:41,970 INFO L138 BoogieDeclarations]: Found implementation of procedure video_release [2022-11-19 07:18:41,970 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:18:41,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:18:41,970 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-19 07:18:41,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-19 07:18:41,970 INFO L130 BoogieDeclarations]: Found specification of procedure restart_video_queue [2022-11-19 07:18:41,970 INFO L138 BoogieDeclarations]: Found implementation of procedure restart_video_queue [2022-11-19 07:18:41,971 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_qbuf [2022-11-19 07:18:41,971 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_qbuf [2022-11-19 07:18:41,971 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_wakeup [2022-11-19 07:18:41,971 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_wakeup [2022-11-19 07:18:41,971 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-19 07:18:41,971 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-19 07:18:41,971 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_s_ctrl [2022-11-19 07:18:41,972 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_s_ctrl [2022-11-19 07:18:41,972 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-19 07:18:41,972 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-19 07:18:41,972 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_iolock [2022-11-19 07:18:41,972 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_iolock [2022-11-19 07:18:41,972 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_enum_input [2022-11-19 07:18:41,972 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_enum_input [2022-11-19 07:18:41,972 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_sram_channel_dump [2022-11-19 07:18:41,973 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_sram_channel_dump [2022-11-19 07:18:41,973 INFO L130 BoogieDeclarations]: Found specification of procedure video_set_drvdata [2022-11-19 07:18:41,973 INFO L138 BoogieDeclarations]: Found implementation of procedure video_set_drvdata [2022-11-19 07:18:41,973 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_tuner [2022-11-19 07:18:41,973 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_tuner [2022-11-19 07:18:41,973 INFO L130 BoogieDeclarations]: Found specification of procedure res_check [2022-11-19 07:18:41,973 INFO L138 BoogieDeclarations]: Found implementation of procedure res_check [2022-11-19 07:18:41,974 INFO L130 BoogieDeclarations]: Found specification of procedure format_by_fourcc [2022-11-19 07:18:41,974 INFO L138 BoogieDeclarations]: Found implementation of procedure format_by_fourcc [2022-11-19 07:18:41,974 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_risc_buffer [2022-11-19 07:18:41,974 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_risc_buffer [2022-11-19 07:18:41,974 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-11-19 07:18:41,976 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-11-19 07:18:41,976 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-19 07:18:41,976 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-19 07:18:41,976 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_event_unsubscribe [2022-11-19 07:18:41,976 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_event_unsubscribe [2022-11-19 07:18:41,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:18:41,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:18:41,977 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_risc_stopper [2022-11-19 07:18:41,977 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_risc_stopper [2022-11-19 07:18:41,977 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-19 07:18:41,977 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-19 07:18:41,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-19 07:18:41,977 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-19 07:18:41,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 07:18:41,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 07:18:41,978 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_std [2022-11-19 07:18:41,978 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_std [2022-11-19 07:18:41,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-19 07:18:41,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-19 07:18:41,978 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_streamoff [2022-11-19 07:18:41,979 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_streamoff [2022-11-19 07:18:41,979 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_sram_channel_setup [2022-11-19 07:18:41,979 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_sram_channel_setup [2022-11-19 07:18:41,979 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_free_buffer [2022-11-19 07:18:41,979 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_free_buffer [2022-11-19 07:18:41,979 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release [2022-11-19 07:18:41,979 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release [2022-11-19 07:18:41,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-19 07:18:41,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-19 07:18:41,980 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_enum_input [2022-11-19 07:18:41,980 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_enum_input [2022-11-19 07:18:41,980 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-19 07:18:41,980 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-19 07:18:41,980 INFO L130 BoogieDeclarations]: Found specification of procedure res_get [2022-11-19 07:18:41,981 INFO L138 BoogieDeclarations]: Found implementation of procedure res_get [2022-11-19 07:18:41,981 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_mmap_free [2022-11-19 07:18:41,981 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_mmap_free [2022-11-19 07:18:41,981 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_resume [2022-11-19 07:18:41,981 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_resume [2022-11-19 07:18:41,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_cx8800_pci_driver_exit_15_2 [2022-11-19 07:18:41,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_cx8800_pci_driver_exit_15_2 [2022-11-19 07:18:41,982 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_frequency [2022-11-19 07:18:41,982 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_frequency [2022-11-19 07:18:41,982 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-11-19 07:18:41,982 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-11-19 07:18:41,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2022-11-19 07:18:41,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2022-11-19 07:18:41,982 INFO L130 BoogieDeclarations]: Found specification of procedure video_poll [2022-11-19 07:18:41,983 INFO L138 BoogieDeclarations]: Found implementation of procedure video_poll [2022-11-19 07:18:41,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:18:41,983 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-19 07:18:41,983 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-19 07:18:41,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:18:41,983 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_core_put [2022-11-19 07:18:41,984 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_core_put [2022-11-19 07:18:41,984 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_find [2022-11-19 07:18:41,985 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_find [2022-11-19 07:18:41,985 INFO L130 BoogieDeclarations]: Found specification of procedure buffer_release [2022-11-19 07:18:41,985 INFO L138 BoogieDeclarations]: Found implementation of procedure buffer_release [2022-11-19 07:18:41,985 INFO L130 BoogieDeclarations]: Found specification of procedure start_video_dma [2022-11-19 07:18:41,985 INFO L138 BoogieDeclarations]: Found implementation of procedure start_video_dma [2022-11-19 07:18:41,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 07:18:41,990 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_node_name [2022-11-19 07:18:41,992 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_node_name [2022-11-19 07:18:41,992 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-19 07:18:41,992 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-19 07:18:41,992 INFO L130 BoogieDeclarations]: Found specification of procedure get_queue [2022-11-19 07:18:41,992 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queue [2022-11-19 07:18:41,992 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-19 07:18:41,993 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-19 07:18:41,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-19 07:18:41,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-19 07:18:41,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-19 07:18:41,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-19 07:18:41,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-19 07:18:41,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-19 07:18:41,994 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_dqbuf [2022-11-19 07:18:41,994 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_dqbuf [2022-11-19 07:18:41,994 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-19 07:18:41,994 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-19 07:18:41,994 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_querycap [2022-11-19 07:18:41,994 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_querycap [2022-11-19 07:18:41,994 INFO L130 BoogieDeclarations]: Found specification of procedure video_register_device [2022-11-19 07:18:41,994 INFO L138 BoogieDeclarations]: Found implementation of procedure video_register_device [2022-11-19 07:18:41,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_78 [2022-11-19 07:18:41,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_78 [2022-11-19 07:18:41,995 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 07:18:41,995 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 07:18:41,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:18:41,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 07:18:41,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 07:18:41,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_79 [2022-11-19 07:18:41,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_79 [2022-11-19 07:18:41,996 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_input [2022-11-19 07:18:41,996 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_input [2022-11-19 07:18:41,996 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-19 07:18:41,996 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-19 07:18:41,996 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_tuner [2022-11-19 07:18:41,996 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_tuner [2022-11-19 07:18:41,997 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-19 07:18:41,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-19 07:18:41,997 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_start_vbi_dma [2022-11-19 07:18:41,997 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_start_vbi_dma [2022-11-19 07:18:41,997 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_ir_stop [2022-11-19 07:18:41,997 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_ir_stop [2022-11-19 07:18:41,997 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_register [2022-11-19 07:18:41,998 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_register [2022-11-19 07:18:41,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-19 07:18:41,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-19 07:18:41,998 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-19 07:18:41,998 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-19 07:18:41,998 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-19 07:18:41,998 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-19 07:18:41,998 INFO L130 BoogieDeclarations]: Found specification of procedure norm_maxw [2022-11-19 07:18:41,999 INFO L138 BoogieDeclarations]: Found implementation of procedure norm_maxw [2022-11-19 07:18:41,999 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-19 07:18:41,999 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-19 07:18:41,999 INFO L130 BoogieDeclarations]: Found specification of procedure norm_maxh [2022-11-19 07:18:41,999 INFO L138 BoogieDeclarations]: Found implementation of procedure norm_maxh [2022-11-19 07:18:41,999 INFO L130 BoogieDeclarations]: Found specification of procedure get_resource [2022-11-19 07:18:41,999 INFO L138 BoogieDeclarations]: Found implementation of procedure get_resource [2022-11-19 07:18:42,000 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-19 07:18:42,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-19 07:18:42,000 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-19 07:18:42,000 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-19 07:18:42,000 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_initdev [2022-11-19 07:18:42,000 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_initdev [2022-11-19 07:18:42,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:18:42,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_slock_of_cx8800_dev [2022-11-19 07:18:42,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_slock_of_cx8800_dev [2022-11-19 07:18:42,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-19 07:18:42,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-19 07:18:43,455 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:18:43,460 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:18:43,828 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 07:19:01,201 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-19 07:19:01,393 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:19:03,254 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:19:03,255 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-19 07:19:03,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:19:03 BoogieIcfgContainer [2022-11-19 07:19:03,262 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:19:03,267 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:19:03,267 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:19:03,271 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:19:03,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:18:34" (1/3) ... [2022-11-19 07:19:03,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@476b15c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:19:03, skipping insertion in model container [2022-11-19 07:19:03,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:40" (2/3) ... [2022-11-19 07:19:03,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@476b15c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:19:03, skipping insertion in model container [2022-11-19 07:19:03,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:19:03" (3/3) ... [2022-11-19 07:19:03,274 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i [2022-11-19 07:19:03,297 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:19:03,298 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-19 07:19:03,419 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:19:03,425 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;@7f7be9e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:19:03,426 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-19 07:19:03,436 INFO L276 IsEmpty]: Start isEmpty. Operand has 2242 states, 1324 states have (on average 1.3006042296072509) internal successors, (1722), 1340 states have internal predecessors, (1722), 768 states have call successors, (768), 148 states have call predecessors, (768), 147 states have return successors, (761), 760 states have call predecessors, (761), 761 states have call successors, (761) [2022-11-19 07:19:03,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 516 [2022-11-19 07:19:03,481 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:19:03,482 INFO L195 NwaCegarLoop]: trace histogram [50, 49, 49, 49, 49, 49, 49, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:19:03,483 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 07:19:03,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:19:03,489 INFO L85 PathProgramCache]: Analyzing trace with hash -503337913, now seen corresponding path program 1 times [2022-11-19 07:19:03,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:19:03,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388579850] [2022-11-19 07:19:03,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:19:03,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:19:04,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:19:05,636 INFO L134 CoverageAnalysis]: Checked inductivity of 9509 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9509 trivial. 0 not checked. [2022-11-19 07:19:05,637 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:19:05,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388579850] [2022-11-19 07:19:05,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388579850] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:19:05,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:19:05,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:19:05,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670936775] [2022-11-19 07:19:05,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:19:05,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:19:05,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:19:05,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:19:05,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:19:05,699 INFO L87 Difference]: Start difference. First operand has 2242 states, 1324 states have (on average 1.3006042296072509) internal successors, (1722), 1340 states have internal predecessors, (1722), 768 states have call successors, (768), 148 states have call predecessors, (768), 147 states have return successors, (761), 760 states have call predecessors, (761), 761 states have call successors, (761) Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2022-11-19 07:19:07,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:19:12,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:19:13,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:19:13,202 INFO L93 Difference]: Finished difference Result 6443 states and 9460 transitions. [2022-11-19 07:19:13,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:19:13,208 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) Word has length 515 [2022-11-19 07:19:13,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:19:13,273 INFO L225 Difference]: With dead ends: 6443 [2022-11-19 07:19:13,273 INFO L226 Difference]: Without dead ends: 4289 [2022-11-19 07:19:13,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:19:13,299 INFO L413 NwaCegarLoop]: 3453 mSDtfsCounter, 2996 mSDsluCounter, 2733 mSDsCounter, 0 mSdLazyCounter, 955 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2996 SdHoareTripleChecker+Valid, 6186 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 955 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:19:13,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2996 Valid, 6186 Invalid, 971 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 955 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2022-11-19 07:19:13,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4289 states. [2022-11-19 07:19:13,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4289 to 4285. [2022-11-19 07:19:13,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4285 states, 2555 states have (on average 1.2962818003913894) internal successors, (3312), 2586 states have internal predecessors, (3312), 1437 states have call successors, (1437), 291 states have call predecessors, (1437), 290 states have return successors, (1433), 1431 states have call predecessors, (1433), 1433 states have call successors, (1433) [2022-11-19 07:19:13,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4285 states to 4285 states and 6182 transitions. [2022-11-19 07:19:13,694 INFO L78 Accepts]: Start accepts. Automaton has 4285 states and 6182 transitions. Word has length 515 [2022-11-19 07:19:13,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:19:13,698 INFO L495 AbstractCegarLoop]: Abstraction has 4285 states and 6182 transitions. [2022-11-19 07:19:13,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2022-11-19 07:19:13,699 INFO L276 IsEmpty]: Start isEmpty. Operand 4285 states and 6182 transitions. [2022-11-19 07:19:13,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-19 07:19:13,722 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:19:13,723 INFO L195 NwaCegarLoop]: trace histogram [50, 49, 49, 49, 49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:19:13,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:19:13,723 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 07:19:13,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:19:13,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1819607372, now seen corresponding path program 1 times [2022-11-19 07:19:13,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:19:13,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110116580] [2022-11-19 07:19:13,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:19:13,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:19:14,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:19:14,834 INFO L134 CoverageAnalysis]: Checked inductivity of 9506 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9506 trivial. 0 not checked. [2022-11-19 07:19:14,835 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:19:14,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110116580] [2022-11-19 07:19:14,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110116580] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:19:14,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:19:14,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:19:14,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843241447] [2022-11-19 07:19:14,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:19:14,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:19:14,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:19:14,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:19:14,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:19:14,845 INFO L87 Difference]: Start difference. First operand 4285 states and 6182 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2022-11-19 07:19:21,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:19:22,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:19:22,138 INFO L93 Difference]: Finished difference Result 10295 states and 14845 transitions. [2022-11-19 07:19:22,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:19:22,140 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) Word has length 524 [2022-11-19 07:19:22,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:19:22,181 INFO L225 Difference]: With dead ends: 10295 [2022-11-19 07:19:22,181 INFO L226 Difference]: Without dead ends: 6109 [2022-11-19 07:19:22,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:19:22,202 INFO L413 NwaCegarLoop]: 3495 mSDtfsCounter, 2820 mSDsluCounter, 2717 mSDsCounter, 0 mSdLazyCounter, 985 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2820 SdHoareTripleChecker+Valid, 6212 SdHoareTripleChecker+Invalid, 1003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 985 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-11-19 07:19:22,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2820 Valid, 6212 Invalid, 1003 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 985 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2022-11-19 07:19:22,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6109 states. [2022-11-19 07:19:22,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6109 to 6084. [2022-11-19 07:19:22,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6084 states, 3657 states have (on average 1.2988788624555647) internal successors, (4750), 3701 states have internal predecessors, (4750), 2001 states have call successors, (2001), 425 states have call predecessors, (2001), 423 states have return successors, (1997), 1989 states have call predecessors, (1997), 1997 states have call successors, (1997) [2022-11-19 07:19:22,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6084 states to 6084 states and 8748 transitions. [2022-11-19 07:19:22,739 INFO L78 Accepts]: Start accepts. Automaton has 6084 states and 8748 transitions. Word has length 524 [2022-11-19 07:19:22,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:19:22,744 INFO L495 AbstractCegarLoop]: Abstraction has 6084 states and 8748 transitions. [2022-11-19 07:19:22,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2022-11-19 07:19:22,745 INFO L276 IsEmpty]: Start isEmpty. Operand 6084 states and 8748 transitions. [2022-11-19 07:19:22,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 536 [2022-11-19 07:19:22,762 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:19:22,762 INFO L195 NwaCegarLoop]: trace histogram [50, 49, 49, 49, 49, 49, 49, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:19:22,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:19:22,763 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 07:19:22,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:19:22,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1363569520, now seen corresponding path program 1 times [2022-11-19 07:19:22,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:19:22,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108934325] [2022-11-19 07:19:22,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:19:22,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:19:23,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:19:23,721 INFO L134 CoverageAnalysis]: Checked inductivity of 9510 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9510 trivial. 0 not checked. [2022-11-19 07:19:23,722 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:19:23,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108934325] [2022-11-19 07:19:23,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108934325] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:19:23,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:19:23,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:19:23,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206226600] [2022-11-19 07:19:23,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:19:23,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:19:23,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:19:23,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:19:23,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:19:23,727 INFO L87 Difference]: Start difference. First operand 6084 states and 8748 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) [2022-11-19 07:19:27,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:19:30,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:19:30,663 INFO L93 Difference]: Finished difference Result 17865 states and 25714 transitions. [2022-11-19 07:19:30,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:19:30,664 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) Word has length 535 [2022-11-19 07:19:30,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:19:30,759 INFO L225 Difference]: With dead ends: 17865 [2022-11-19 07:19:30,759 INFO L226 Difference]: Without dead ends: 11880 [2022-11-19 07:19:30,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:19:30,798 INFO L413 NwaCegarLoop]: 3447 mSDtfsCounter, 2966 mSDsluCounter, 2767 mSDsCounter, 0 mSdLazyCounter, 925 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2966 SdHoareTripleChecker+Valid, 6214 SdHoareTripleChecker+Invalid, 929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 925 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:19:30,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2966 Valid, 6214 Invalid, 929 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 925 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-11-19 07:19:30,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11880 states. [2022-11-19 07:19:31,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11880 to 11848. [2022-11-19 07:19:31,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11848 states, 7153 states have (on average 1.3033692157136865) internal successors, (9323), 7247 states have internal predecessors, (9323), 3854 states have call successors, (3854), 842 states have call predecessors, (3854), 838 states have return successors, (3894), 3822 states have call predecessors, (3894), 3850 states have call successors, (3894) [2022-11-19 07:19:31,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11848 states to 11848 states and 17071 transitions. [2022-11-19 07:19:31,912 INFO L78 Accepts]: Start accepts. Automaton has 11848 states and 17071 transitions. Word has length 535 [2022-11-19 07:19:31,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:19:31,914 INFO L495 AbstractCegarLoop]: Abstraction has 11848 states and 17071 transitions. [2022-11-19 07:19:31,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) [2022-11-19 07:19:31,916 INFO L276 IsEmpty]: Start isEmpty. Operand 11848 states and 17071 transitions. [2022-11-19 07:19:31,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2022-11-19 07:19:31,935 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:19:31,935 INFO L195 NwaCegarLoop]: trace histogram [50, 49, 49, 49, 49, 49, 49, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:19:31,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:19:31,936 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 07:19:31,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:19:31,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1593697358, now seen corresponding path program 1 times [2022-11-19 07:19:31,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:19:31,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817432113] [2022-11-19 07:19:31,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:19:31,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:19:32,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:19:33,056 INFO L134 CoverageAnalysis]: Checked inductivity of 9514 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9514 trivial. 0 not checked. [2022-11-19 07:19:33,057 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:19:33,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817432113] [2022-11-19 07:19:33,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817432113] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:19:33,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:19:33,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:19:33,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730654773] [2022-11-19 07:19:33,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:19:33,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:19:33,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:19:33,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:19:33,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:19:33,060 INFO L87 Difference]: Start difference. First operand 11848 states and 17071 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2022-11-19 07:19:40,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:19:40,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:19:40,630 INFO L93 Difference]: Finished difference Result 34842 states and 50346 transitions. [2022-11-19 07:19:40,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:19:40,631 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) Word has length 541 [2022-11-19 07:19:40,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:19:40,810 INFO L225 Difference]: With dead ends: 34842 [2022-11-19 07:19:40,810 INFO L226 Difference]: Without dead ends: 23093 [2022-11-19 07:19:40,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:19:40,880 INFO L413 NwaCegarLoop]: 3556 mSDtfsCounter, 2965 mSDsluCounter, 2744 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2965 SdHoareTripleChecker+Valid, 6300 SdHoareTripleChecker+Invalid, 956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:19:40,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2965 Valid, 6300 Invalid, 956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 949 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-11-19 07:19:40,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23093 states. [2022-11-19 07:19:42,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23093 to 23056. [2022-11-19 07:19:42,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23056 states, 13981 states have (on average 1.3047707603175738) internal successors, (18242), 14147 states have internal predecessors, (18242), 7434 states have call successors, (7434), 1655 states have call predecessors, (7434), 1638 states have return successors, (7684), 7345 states have call predecessors, (7684), 7430 states have call successors, (7684) [2022-11-19 07:19:42,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23056 states to 23056 states and 33360 transitions. [2022-11-19 07:19:42,439 INFO L78 Accepts]: Start accepts. Automaton has 23056 states and 33360 transitions. Word has length 541 [2022-11-19 07:19:42,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:19:42,440 INFO L495 AbstractCegarLoop]: Abstraction has 23056 states and 33360 transitions. [2022-11-19 07:19:42,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2022-11-19 07:19:42,440 INFO L276 IsEmpty]: Start isEmpty. Operand 23056 states and 33360 transitions. [2022-11-19 07:19:42,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 562 [2022-11-19 07:19:42,460 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:19:42,460 INFO L195 NwaCegarLoop]: trace histogram [53, 49, 49, 49, 49, 49, 49, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:19:42,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:19:42,461 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 07:19:42,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:19:42,462 INFO L85 PathProgramCache]: Analyzing trace with hash -43997275, now seen corresponding path program 1 times [2022-11-19 07:19:42,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:19:42,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939942299] [2022-11-19 07:19:42,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:19:42,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:19:42,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:19:44,547 INFO L134 CoverageAnalysis]: Checked inductivity of 9847 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9847 trivial. 0 not checked. [2022-11-19 07:19:44,548 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:19:44,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939942299] [2022-11-19 07:19:44,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939942299] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:19:44,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:19:44,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:19:44,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206299302] [2022-11-19 07:19:44,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:19:44,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:19:44,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:19:44,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:19:44,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:19:44,551 INFO L87 Difference]: Start difference. First operand 23056 states and 33360 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2022-11-19 07:19:49,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:19:50,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:19:50,894 INFO L93 Difference]: Finished difference Result 23062 states and 33365 transitions. [2022-11-19 07:19:50,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:19:50,895 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 561 [2022-11-19 07:19:50,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:19:51,048 INFO L225 Difference]: With dead ends: 23062 [2022-11-19 07:19:51,048 INFO L226 Difference]: Without dead ends: 23060 [2022-11-19 07:19:51,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:19:51,069 INFO L413 NwaCegarLoop]: 2752 mSDtfsCounter, 3086 mSDsluCounter, 5491 mSDsCounter, 0 mSdLazyCounter, 1408 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3097 SdHoareTripleChecker+Valid, 8243 SdHoareTripleChecker+Invalid, 1409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:19:51,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3097 Valid, 8243 Invalid, 1409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1408 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-11-19 07:19:51,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23060 states. [2022-11-19 07:19:52,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23060 to 23060. [2022-11-19 07:19:52,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23060 states, 13984 states have (on average 1.3047053775743707) internal successors, (18245), 14150 states have internal predecessors, (18245), 7434 states have call successors, (7434), 1656 states have call predecessors, (7434), 1639 states have return successors, (7684), 7345 states have call predecessors, (7684), 7430 states have call successors, (7684) [2022-11-19 07:19:52,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23060 states to 23060 states and 33363 transitions. [2022-11-19 07:19:52,863 INFO L78 Accepts]: Start accepts. Automaton has 23060 states and 33363 transitions. Word has length 561 [2022-11-19 07:19:52,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:19:52,864 INFO L495 AbstractCegarLoop]: Abstraction has 23060 states and 33363 transitions. [2022-11-19 07:19:52,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2022-11-19 07:19:52,865 INFO L276 IsEmpty]: Start isEmpty. Operand 23060 states and 33363 transitions. [2022-11-19 07:19:52,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 566 [2022-11-19 07:19:52,877 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:19:52,877 INFO L195 NwaCegarLoop]: trace histogram [53, 49, 49, 49, 49, 49, 49, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:19:52,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:19:52,878 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 07:19:52,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:19:52,878 INFO L85 PathProgramCache]: Analyzing trace with hash 2026820436, now seen corresponding path program 1 times [2022-11-19 07:19:52,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:19:52,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805668666] [2022-11-19 07:19:52,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:19:52,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:19:53,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:19:54,936 INFO L134 CoverageAnalysis]: Checked inductivity of 9848 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9846 trivial. 0 not checked. [2022-11-19 07:19:54,936 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:19:54,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805668666] [2022-11-19 07:19:54,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805668666] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:19:54,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:19:54,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:19:54,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478545713] [2022-11-19 07:19:54,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:19:54,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:19:54,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:19:54,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:19:54,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:19:54,939 INFO L87 Difference]: Start difference. First operand 23060 states and 33363 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (63), 3 states have call predecessors, (63), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2022-11-19 07:19:56,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:20:00,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:20:02,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:20:04,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:20:04,821 INFO L93 Difference]: Finished difference Result 23066 states and 33368 transitions. [2022-11-19 07:20:04,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:20:04,822 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (63), 3 states have call predecessors, (63), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) Word has length 565 [2022-11-19 07:20:04,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:20:04,976 INFO L225 Difference]: With dead ends: 23066 [2022-11-19 07:20:04,976 INFO L226 Difference]: Without dead ends: 23064 [2022-11-19 07:20:04,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:20:04,997 INFO L413 NwaCegarLoop]: 2755 mSDtfsCounter, 3081 mSDsluCounter, 5491 mSDsCounter, 0 mSdLazyCounter, 1407 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3091 SdHoareTripleChecker+Valid, 8246 SdHoareTripleChecker+Invalid, 1409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1407 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:20:04,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3091 Valid, 8246 Invalid, 1409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1407 Invalid, 1 Unknown, 0 Unchecked, 8.6s Time] [2022-11-19 07:20:05,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23064 states. [2022-11-19 07:20:06,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23064 to 23064. [2022-11-19 07:20:06,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23064 states, 13987 states have (on average 1.304640022878387) internal successors, (18248), 14153 states have internal predecessors, (18248), 7434 states have call successors, (7434), 1657 states have call predecessors, (7434), 1640 states have return successors, (7684), 7345 states have call predecessors, (7684), 7430 states have call successors, (7684) [2022-11-19 07:20:06,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23064 states to 23064 states and 33366 transitions. [2022-11-19 07:20:06,685 INFO L78 Accepts]: Start accepts. Automaton has 23064 states and 33366 transitions. Word has length 565 [2022-11-19 07:20:06,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:20:06,687 INFO L495 AbstractCegarLoop]: Abstraction has 23064 states and 33366 transitions. [2022-11-19 07:20:06,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (63), 3 states have call predecessors, (63), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2022-11-19 07:20:06,687 INFO L276 IsEmpty]: Start isEmpty. Operand 23064 states and 33366 transitions. [2022-11-19 07:20:06,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 572 [2022-11-19 07:20:06,703 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:20:06,703 INFO L195 NwaCegarLoop]: trace histogram [53, 49, 49, 49, 49, 49, 49, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:20:06,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 07:20:06,704 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 07:20:06,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:20:06,704 INFO L85 PathProgramCache]: Analyzing trace with hash -343914033, now seen corresponding path program 1 times [2022-11-19 07:20:06,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:20:06,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392311924] [2022-11-19 07:20:06,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:20:06,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:20:06,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:20:08,578 INFO L134 CoverageAnalysis]: Checked inductivity of 9851 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 9847 trivial. 0 not checked. [2022-11-19 07:20:08,580 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:20:08,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392311924] [2022-11-19 07:20:08,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392311924] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:20:08,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:20:08,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:20:08,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442064488] [2022-11-19 07:20:08,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:20:08,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:20:08,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:20:08,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:20:08,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:20:08,583 INFO L87 Difference]: Start difference. First operand 23064 states and 33366 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2022-11-19 07:20:13,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:20:17,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:20:19,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:20:22,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:20:22,582 INFO L93 Difference]: Finished difference Result 45747 states and 66121 transitions. [2022-11-19 07:20:22,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 07:20:22,583 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 571 [2022-11-19 07:20:22,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:20:22,842 INFO L225 Difference]: With dead ends: 45747 [2022-11-19 07:20:22,842 INFO L226 Difference]: Without dead ends: 45745 [2022-11-19 07:20:22,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:20:22,869 INFO L413 NwaCegarLoop]: 3456 mSDtfsCounter, 3043 mSDsluCounter, 9502 mSDsCounter, 0 mSdLazyCounter, 1866 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3052 SdHoareTripleChecker+Valid, 12958 SdHoareTripleChecker+Invalid, 1870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1866 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:20:22,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3052 Valid, 12958 Invalid, 1870 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1866 Invalid, 2 Unknown, 0 Unchecked, 12.2s Time] [2022-11-19 07:20:22,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45745 states. [2022-11-19 07:20:25,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45745 to 45739. [2022-11-19 07:20:25,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45739 states, 27720 states have (on average 1.303968253968254) internal successors, (36146), 28050 states have internal predecessors, (36146), 14735 states have call successors, (14735), 3315 states have call predecessors, (14735), 3281 states have return successors, (15235), 14557 states have call predecessors, (15235), 14727 states have call successors, (15235) [2022-11-19 07:20:25,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45739 states to 45739 states and 66116 transitions. [2022-11-19 07:20:25,880 INFO L78 Accepts]: Start accepts. Automaton has 45739 states and 66116 transitions. Word has length 571 [2022-11-19 07:20:25,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:20:25,881 INFO L495 AbstractCegarLoop]: Abstraction has 45739 states and 66116 transitions. [2022-11-19 07:20:25,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2022-11-19 07:20:25,881 INFO L276 IsEmpty]: Start isEmpty. Operand 45739 states and 66116 transitions. [2022-11-19 07:20:25,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 577 [2022-11-19 07:20:25,905 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:20:25,906 INFO L195 NwaCegarLoop]: trace histogram [53, 49, 49, 49, 49, 49, 49, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:20:25,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 07:20:25,906 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 07:20:25,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:20:25,907 INFO L85 PathProgramCache]: Analyzing trace with hash -405375037, now seen corresponding path program 1 times [2022-11-19 07:20:25,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:20:25,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72606134] [2022-11-19 07:20:25,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:20:25,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:20:26,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:20:27,844 INFO L134 CoverageAnalysis]: Checked inductivity of 9865 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9859 trivial. 0 not checked. [2022-11-19 07:20:27,844 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:20:27,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72606134] [2022-11-19 07:20:27,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72606134] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:20:27,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:20:27,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:20:27,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318024303] [2022-11-19 07:20:27,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:20:27,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:20:27,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:20:27,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:20:27,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:20:27,847 INFO L87 Difference]: Start difference. First operand 45739 states and 66116 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (65), 3 states have call predecessors, (65), 1 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2022-11-19 07:20:34,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:20:40,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:20:40,908 INFO L93 Difference]: Finished difference Result 91353 states and 132033 transitions. [2022-11-19 07:20:40,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 07:20:40,909 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (65), 3 states have call predecessors, (65), 1 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) Word has length 576 [2022-11-19 07:20:40,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:20:41,824 INFO L225 Difference]: With dead ends: 91353 [2022-11-19 07:20:41,825 INFO L226 Difference]: Without dead ends: 91351 [2022-11-19 07:20:41,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:20:41,876 INFO L413 NwaCegarLoop]: 3520 mSDtfsCounter, 3076 mSDsluCounter, 9630 mSDsCounter, 0 mSdLazyCounter, 1884 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3084 SdHoareTripleChecker+Valid, 13150 SdHoareTripleChecker+Invalid, 1887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1884 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:20:41,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3084 Valid, 13150 Invalid, 1887 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1884 Invalid, 1 Unknown, 0 Unchecked, 9.2s Time] [2022-11-19 07:20:42,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91351 states. [2022-11-19 07:20:47,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91351 to 91333. [2022-11-19 07:20:47,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91333 states, 55369 states have (on average 1.3043580342791092) internal successors, (72221), 56039 states have internal predecessors, (72221), 29397 states have call successors, (29397), 6632 states have call predecessors, (29397), 6564 states have return successors, (30397), 29029 states have call predecessors, (30397), 29381 states have call successors, (30397) [2022-11-19 07:20:48,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91333 states to 91333 states and 132015 transitions. [2022-11-19 07:20:48,533 INFO L78 Accepts]: Start accepts. Automaton has 91333 states and 132015 transitions. Word has length 576 [2022-11-19 07:20:48,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:20:48,534 INFO L495 AbstractCegarLoop]: Abstraction has 91333 states and 132015 transitions. [2022-11-19 07:20:48,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (65), 3 states have call predecessors, (65), 1 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2022-11-19 07:20:48,534 INFO L276 IsEmpty]: Start isEmpty. Operand 91333 states and 132015 transitions. [2022-11-19 07:20:48,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 576 [2022-11-19 07:20:48,560 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:20:48,561 INFO L195 NwaCegarLoop]: trace histogram [53, 49, 49, 49, 49, 49, 49, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:20:48,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 07:20:48,561 INFO L420 AbstractCegarLoop]: === Iteration 9 === 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 07:20:48,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:20:48,562 INFO L85 PathProgramCache]: Analyzing trace with hash -787951354, now seen corresponding path program 1 times [2022-11-19 07:20:48,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:20:48,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387672344] [2022-11-19 07:20:48,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:20:48,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:20:48,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:20:49,896 INFO L134 CoverageAnalysis]: Checked inductivity of 9845 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 9842 trivial. 0 not checked. [2022-11-19 07:20:49,896 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:20:49,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387672344] [2022-11-19 07:20:49,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387672344] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:20:49,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:20:49,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:20:49,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670379124] [2022-11-19 07:20:49,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:20:49,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:20:49,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:20:49,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:20:49,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:20:49,899 INFO L87 Difference]: Start difference. First operand 91333 states and 132015 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) [2022-11-19 07:20:52,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:20:54,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:20:57,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:21:04,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:04,604 INFO L93 Difference]: Finished difference Result 183589 states and 265629 transitions. [2022-11-19 07:21:04,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:21:04,606 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) Word has length 575 [2022-11-19 07:21:04,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:05,535 INFO L225 Difference]: With dead ends: 183589 [2022-11-19 07:21:05,535 INFO L226 Difference]: Without dead ends: 121331 [2022-11-19 07:21:05,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:21:05,801 INFO L413 NwaCegarLoop]: 5085 mSDtfsCounter, 2809 mSDsluCounter, 2715 mSDsCounter, 0 mSdLazyCounter, 1391 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2809 SdHoareTripleChecker+Valid, 7800 SdHoareTripleChecker+Invalid, 1407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1391 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2022-11-19 07:21:05,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2809 Valid, 7800 Invalid, 1407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1391 Invalid, 1 Unknown, 0 Unchecked, 8.9s Time] [2022-11-19 07:21:05,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121331 states.