./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs --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 0da9b2775f98d30f03d1fa5b2c7b9aebe5198411fc856f3ea3af31dd47dd5198 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:30:15,876 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:30:15,878 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:30:15,909 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:30:15,910 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:30:15,911 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:30:15,913 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:30:15,915 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:30:15,917 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:30:15,918 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:30:15,919 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:30:15,921 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:30:15,921 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:30:15,922 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:30:15,924 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:30:15,925 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:30:15,926 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:30:15,927 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:30:15,930 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:30:15,932 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:30:15,934 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:30:15,942 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:30:15,943 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:30:15,946 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:30:15,950 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:30:15,954 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:30:15,954 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:30:15,956 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:30:15,960 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:30:15,961 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:30:15,962 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:30:15,963 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:30:15,965 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:30:15,966 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:30:15,967 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:30:15,968 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:30:15,969 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:30:15,969 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:30:15,970 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:30:15,970 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:30:15,971 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:30:15,972 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 14:30:16,015 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:30:16,016 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:30:16,018 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:30:16,018 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:30:16,018 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:30:16,018 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:30:16,018 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:30:16,019 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:30:16,025 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:30:16,025 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:30:16,026 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:30:16,027 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:30:16,027 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:30:16,027 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:30:16,027 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:30:16,028 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:30:16,028 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:30:16,029 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:30:16,029 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:30:16,029 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:30:16,029 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:30:16,029 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:30:16,030 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:30:16,030 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:30:16,030 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:30:16,030 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:30:16,030 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:30:16,031 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:30:16,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:30:16,033 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:30:16,033 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:30:16,033 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:30:16,033 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:30:16,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:30:16,034 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:30:16,034 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:30:16,034 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:30:16,034 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0da9b2775f98d30f03d1fa5b2c7b9aebe5198411fc856f3ea3af31dd47dd5198 [2021-11-19 14:30:16,305 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:30:16,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:30:16,330 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:30:16,333 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:30:16,333 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:30:16,335 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i [2021-11-19 14:30:16,413 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/data/47fee43da/5db4c92caf454775be0cba785724a04e/FLAGc5491c077 [2021-11-19 14:30:17,529 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:30:17,529 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i [2021-11-19 14:30:17,610 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/data/47fee43da/5db4c92caf454775be0cba785724a04e/FLAGc5491c077 [2021-11-19 14:30:17,837 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/data/47fee43da/5db4c92caf454775be0cba785724a04e [2021-11-19 14:30:17,841 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:30:17,844 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:30:17,847 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:30:17,848 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:30:17,851 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:30:17,852 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:30:17" (1/1) ... [2021-11-19 14:30:17,855 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fa80197 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:17, skipping insertion in model container [2021-11-19 14:30:17,856 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:30:17" (1/1) ... [2021-11-19 14:30:17,862 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:30:18,049 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:30:19,245 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:30:19,497 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:30:19,524 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:30:19,534 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:30:19,583 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:30:19,589 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:30:19,597 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:30:19,613 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:30:19,673 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:30:19,689 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:30:19,696 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:30:19,702 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:30:19,708 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:30:19,714 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:30:19,723 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:30:19,737 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:30:19,743 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:30:19,750 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:30:19,762 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:30:19,791 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:30:19,797 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:30:19,806 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:30:19,818 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:30:19,824 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:30:19,829 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:30:19,835 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:30:19,836 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:30:19,841 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:30:19,842 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:30:19,850 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:30:20,600 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i[359877,359890] [2021-11-19 14:30:20,604 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i[360046,360059] [2021-11-19 14:30:20,604 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i[360213,360226] [2021-11-19 14:30:20,605 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i[360381,360394] [2021-11-19 14:30:20,627 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:30:20,733 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 14:30:20,734 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3e9e5a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:20, skipping insertion in model container [2021-11-19 14:30:20,734 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:30:20,734 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:30:20,736 INFO L158 Benchmark]: Toolchain (without parser) took 2891.63ms. Allocated memory was 111.1MB in the beginning and 146.8MB in the end (delta: 35.7MB). Free memory was 61.2MB in the beginning and 76.0MB in the end (delta: -14.8MB). Peak memory consumption was 61.6MB. Max. memory is 16.1GB. [2021-11-19 14:30:20,738 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 79.7MB. Free memory was 38.0MB in the beginning and 37.9MB in the end (delta: 40.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:30:20,739 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2886.69ms. Allocated memory was 111.1MB in the beginning and 146.8MB in the end (delta: 35.7MB). Free memory was 61.0MB in the beginning and 76.0MB in the end (delta: -15.0MB). Peak memory consumption was 61.6MB. Max. memory is 16.1GB. [2021-11-19 14:30:20,742 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 79.7MB. Free memory was 38.0MB in the beginning and 37.9MB in the end (delta: 40.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2886.69ms. Allocated memory was 111.1MB in the beginning and 146.8MB in the end (delta: 35.7MB). Free memory was 61.0MB in the beginning and 76.0MB in the end (delta: -15.0MB). Peak memory consumption was 61.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 5283]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs --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 0da9b2775f98d30f03d1fa5b2c7b9aebe5198411fc856f3ea3af31dd47dd5198 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:30:22,985 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:30:22,987 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:30:23,028 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:30:23,029 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:30:23,031 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:30:23,032 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:30:23,035 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:30:23,037 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:30:23,038 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:30:23,040 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:30:23,042 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:30:23,044 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:30:23,047 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:30:23,049 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:30:23,052 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:30:23,053 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:30:23,058 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:30:23,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:30:23,069 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:30:23,076 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:30:23,077 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:30:23,079 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:30:23,080 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:30:23,083 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:30:23,084 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:30:23,084 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:30:23,085 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:30:23,086 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:30:23,087 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:30:23,088 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:30:23,089 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:30:23,090 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:30:23,091 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:30:23,092 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:30:23,092 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:30:23,093 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:30:23,094 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:30:23,094 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:30:23,095 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:30:23,096 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:30:23,097 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 14:30:23,141 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:30:23,142 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:30:23,143 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:30:23,143 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:30:23,143 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:30:23,143 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:30:23,144 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:30:23,144 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:30:23,144 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:30:23,144 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:30:23,146 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:30:23,147 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:30:23,147 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:30:23,147 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:30:23,147 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:30:23,148 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:30:23,148 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:30:23,148 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:30:23,148 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:30:23,148 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:30:23,149 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:30:23,149 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:30:23,149 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:30:23,149 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:30:23,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:30:23,150 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:30:23,150 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:30:23,150 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:30:23,150 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:30:23,150 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:30:23,150 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:30:23,151 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:30:23,151 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:30:23,151 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0da9b2775f98d30f03d1fa5b2c7b9aebe5198411fc856f3ea3af31dd47dd5198 [2021-11-19 14:30:23,566 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:30:23,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:30:23,608 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:30:23,609 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:30:23,611 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:30:23,612 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i [2021-11-19 14:30:23,683 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/data/b47419b85/1afed39470d74d10a716fd1be7ef55f1/FLAG1bf05c18f [2021-11-19 14:30:24,708 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:30:24,709 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i [2021-11-19 14:30:24,764 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/data/b47419b85/1afed39470d74d10a716fd1be7ef55f1/FLAG1bf05c18f [2021-11-19 14:30:25,012 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/data/b47419b85/1afed39470d74d10a716fd1be7ef55f1 [2021-11-19 14:30:25,015 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:30:25,017 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:30:25,021 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:30:25,022 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:30:25,025 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:30:25,026 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:30:25" (1/1) ... [2021-11-19 14:30:25,027 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26ffe2eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:25, skipping insertion in model container [2021-11-19 14:30:25,027 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:30:25" (1/1) ... [2021-11-19 14:30:25,034 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:30:25,232 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:30:27,951 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i[359877,359890] [2021-11-19 14:30:27,954 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i[360046,360059] [2021-11-19 14:30:27,955 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i[360213,360226] [2021-11-19 14:30:27,955 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i[360381,360394] [2021-11-19 14:30:27,964 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:30:28,081 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:30:28,174 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:30:28,700 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i[359877,359890] [2021-11-19 14:30:28,701 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i[360046,360059] [2021-11-19 14:30:28,702 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i[360213,360226] [2021-11-19 14:30:28,702 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i[360381,360394] [2021-11-19 14:30:28,706 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:30:28,763 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:30:29,290 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i[359877,359890] [2021-11-19 14:30:29,291 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i[360046,360059] [2021-11-19 14:30:29,292 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i[360213,360226] [2021-11-19 14:30:29,293 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i[360381,360394] [2021-11-19 14:30:29,295 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:30:29,600 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:30:29,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:29 WrapperNode [2021-11-19 14:30:29,601 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:30:29,602 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:30:29,603 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:30:29,603 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:30:29,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:29" (1/1) ... [2021-11-19 14:30:29,786 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:29" (1/1) ... [2021-11-19 14:30:30,204 INFO L137 Inliner]: procedures = 305, calls = 5733, calls flagged for inlining = 124, calls inlined = 112, statements flattened = 8185 [2021-11-19 14:30:30,206 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:30:30,207 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:30:30,207 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:30:30,208 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:30:30,216 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:29" (1/1) ... [2021-11-19 14:30:30,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:29" (1/1) ... [2021-11-19 14:30:30,310 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:29" (1/1) ... [2021-11-19 14:30:30,311 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:29" (1/1) ... [2021-11-19 14:30:30,538 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:29" (1/1) ... [2021-11-19 14:30:30,575 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:29" (1/1) ... [2021-11-19 14:30:30,599 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:29" (1/1) ... [2021-11-19 14:30:30,635 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:30:30,636 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:30:30,636 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:30:30,636 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:30:30,637 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:29" (1/1) ... [2021-11-19 14:30:30,644 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:30:30,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:30:30,670 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:30:30,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:30:30,725 INFO L130 BoogieDeclarations]: Found specification of procedure setbrightness [2021-11-19 14:30:30,726 INFO L138 BoogieDeclarations]: Found implementation of procedure setbrightness [2021-11-19 14:30:30,726 INFO L130 BoogieDeclarations]: Found specification of procedure ov519_set_fr [2021-11-19 14:30:30,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ov519_set_fr [2021-11-19 14:30:30,726 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_write_sb [2021-11-19 14:30:30,726 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_write_sb [2021-11-19 14:30:30,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 14:30:30,727 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-19 14:30:30,727 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-19 14:30:30,727 INFO L130 BoogieDeclarations]: Found specification of procedure sd_isoc_init [2021-11-19 14:30:30,727 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_isoc_init [2021-11-19 14:30:30,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 14:30:30,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 14:30:30,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 14:30:30,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 14:30:30,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 14:30:30,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 14:30:30,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 14:30:30,728 INFO L130 BoogieDeclarations]: Found specification of procedure usb_altnum_to_altsetting [2021-11-19 14:30:30,728 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_altnum_to_altsetting [2021-11-19 14:30:30,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 14:30:30,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 14:30:30,729 INFO L130 BoogieDeclarations]: Found specification of procedure ov51x_upload_quan_tables [2021-11-19 14:30:30,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ov51x_upload_quan_tables [2021-11-19 14:30:30,729 INFO L130 BoogieDeclarations]: Found specification of procedure sd_start [2021-11-19 14:30:30,729 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_start [2021-11-19 14:30:30,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 14:30:30,730 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 14:30:30,730 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_frame_add [2021-11-19 14:30:30,730 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_frame_add [2021-11-19 14:30:30,730 INFO L130 BoogieDeclarations]: Found specification of procedure reg_w_mask [2021-11-19 14:30:30,730 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_w_mask [2021-11-19 14:30:30,731 INFO L130 BoogieDeclarations]: Found specification of procedure ov518_i2c_w [2021-11-19 14:30:30,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ov518_i2c_w [2021-11-19 14:30:30,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:30:30,731 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2021-11-19 14:30:30,731 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2021-11-19 14:30:30,731 INFO L130 BoogieDeclarations]: Found specification of procedure ov519_set_mode [2021-11-19 14:30:30,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ov519_set_mode [2021-11-19 14:30:30,732 INFO L130 BoogieDeclarations]: Found specification of procedure ov51x_handle_button [2021-11-19 14:30:30,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ov51x_handle_button [2021-11-19 14:30:30,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 14:30:30,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 14:30:30,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 14:30:30,733 INFO L130 BoogieDeclarations]: Found specification of procedure ov51x_stop [2021-11-19 14:30:30,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ov51x_stop [2021-11-19 14:30:30,733 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_smbus_stop [2021-11-19 14:30:30,733 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_smbus_stop [2021-11-19 14:30:30,733 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2021-11-19 14:30:30,733 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2021-11-19 14:30:30,734 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std [2021-11-19 14:30:30,734 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std [2021-11-19 14:30:30,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 14:30:30,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 14:30:30,734 INFO L130 BoogieDeclarations]: Found specification of procedure sd_reset_snapshot [2021-11-19 14:30:30,734 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_reset_snapshot [2021-11-19 14:30:30,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 14:30:30,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 14:30:30,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:30:30,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 14:30:30,735 INFO L130 BoogieDeclarations]: Found specification of procedure mode_init_ov_sensor_regs [2021-11-19 14:30:30,735 INFO L138 BoogieDeclarations]: Found implementation of procedure mode_init_ov_sensor_regs [2021-11-19 14:30:30,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 14:30:30,736 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_smbus_read_ack [2021-11-19 14:30:30,736 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_smbus_read_ack [2021-11-19 14:30:30,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-19 14:30:30,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:30:30,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 14:30:30,737 INFO L130 BoogieDeclarations]: Found specification of procedure write_regvals [2021-11-19 14:30:30,737 INFO L138 BoogieDeclarations]: Found implementation of procedure write_regvals [2021-11-19 14:30:30,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 14:30:30,737 INFO L130 BoogieDeclarations]: Found specification of procedure ov518_reg_w32 [2021-11-19 14:30:30,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ov518_reg_w32 [2021-11-19 14:30:30,737 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 14:30:30,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 14:30:30,738 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2021-11-19 14:30:30,738 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2021-11-19 14:30:30,738 INFO L130 BoogieDeclarations]: Found specification of procedure write_i2c_regvals [2021-11-19 14:30:30,738 INFO L138 BoogieDeclarations]: Found implementation of procedure write_i2c_regvals [2021-11-19 14:30:30,738 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_smbus_write_byte [2021-11-19 14:30:30,739 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_smbus_write_byte [2021-11-19 14:30:30,739 INFO L130 BoogieDeclarations]: Found specification of procedure sd_g_volatile_ctrl [2021-11-19 14:30:30,739 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_g_volatile_ctrl [2021-11-19 14:30:30,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 14:30:30,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 14:30:30,739 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_grab [2021-11-19 14:30:30,740 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_grab [2021-11-19 14:30:30,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_2_4 [2021-11-19 14:30:30,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_2_4 [2021-11-19 14:30:30,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-19 14:30:30,740 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-19 14:30:30,740 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-19 14:30:30,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-19 14:30:30,741 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 14:30:30,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 14:30:30,741 INFO L130 BoogieDeclarations]: Found specification of procedure sd_init [2021-11-19 14:30:30,741 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_init [2021-11-19 14:30:30,741 INFO L130 BoogieDeclarations]: Found specification of procedure init_ov_sensor [2021-11-19 14:30:30,742 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ov_sensor [2021-11-19 14:30:30,742 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_write_fsb [2021-11-19 14:30:30,742 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_write_fsb [2021-11-19 14:30:30,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_sd_driver_exit_6_2 [2021-11-19 14:30:30,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_sd_driver_exit_6_2 [2021-11-19 14:30:30,742 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2021-11-19 14:30:30,743 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2021-11-19 14:30:30,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 14:30:30,743 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_disconnect [2021-11-19 14:30:30,743 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_disconnect [2021-11-19 14:30:30,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 14:30:30,744 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_smbus_start [2021-11-19 14:30:30,744 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_smbus_start [2021-11-19 14:30:30,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 14:30:30,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 14:30:30,744 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std_menu [2021-11-19 14:30:30,744 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std_menu [2021-11-19 14:30:30,745 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_set_crop_window [2021-11-19 14:30:30,745 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_set_crop_window [2021-11-19 14:30:30,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-19 14:30:30,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-19 14:30:30,745 INFO L130 BoogieDeclarations]: Found specification of procedure ov51x_led_control [2021-11-19 14:30:30,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ov51x_led_control [2021-11-19 14:30:30,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:30:30,746 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_resume [2021-11-19 14:30:30,746 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_resume [2021-11-19 14:30:30,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-19 14:30:30,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-19 14:30:30,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-19 14:30:30,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-19 14:30:30,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:30:30,747 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_w_mask [2021-11-19 14:30:30,747 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_w_mask [2021-11-19 14:30:30,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 14:30:30,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 14:30:30,748 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-19 14:30:30,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-19 14:30:30,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 14:30:30,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 14:30:30,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 14:30:30,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 14:30:30,749 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2021-11-19 14:30:30,749 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2021-11-19 14:30:30,749 INFO L130 BoogieDeclarations]: Found specification of procedure sd_stopN [2021-11-19 14:30:30,749 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_stopN [2021-11-19 14:30:30,749 INFO L130 BoogieDeclarations]: Found specification of procedure sd_s_ctrl [2021-11-19 14:30:30,749 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_s_ctrl [2021-11-19 14:30:30,750 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_g_ctrl [2021-11-19 14:30:30,750 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_g_ctrl [2021-11-19 14:30:30,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 14:30:30,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 14:30:30,750 INFO L130 BoogieDeclarations]: Found specification of procedure sd_stop0 [2021-11-19 14:30:30,750 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_stop0 [2021-11-19 14:30:30,750 INFO L130 BoogieDeclarations]: Found specification of procedure ov51x_restart [2021-11-19 14:30:30,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ov51x_restart [2021-11-19 14:30:30,751 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_w [2021-11-19 14:30:30,751 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_w [2021-11-19 14:30:30,751 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_r [2021-11-19 14:30:30,751 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_r [2021-11-19 14:30:30,752 INFO L130 BoogieDeclarations]: Found specification of procedure reg_r8 [2021-11-19 14:30:30,752 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_r8 [2021-11-19 14:30:30,752 INFO L130 BoogieDeclarations]: Found specification of procedure sd_init_controls [2021-11-19 14:30:30,752 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_init_controls [2021-11-19 14:30:30,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 14:30:30,752 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_auto_cluster [2021-11-19 14:30:30,752 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_auto_cluster [2021-11-19 14:30:30,753 INFO L130 BoogieDeclarations]: Found specification of procedure reg_r [2021-11-19 14:30:30,753 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_r [2021-11-19 14:30:30,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-19 14:30:30,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-19 14:30:30,753 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_read_sb [2021-11-19 14:30:30,753 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_read_sb [2021-11-19 14:30:30,754 INFO L130 BoogieDeclarations]: Found specification of procedure reg_w [2021-11-19 14:30:30,754 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_w [2021-11-19 14:30:30,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:30:30,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:30:31,624 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:30:31,628 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:30:41,577 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 14:36:52,155 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-19 14:36:52,974 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:36:53,002 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:36:53,002 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-19 14:36:53,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:36:53 BoogieIcfgContainer [2021-11-19 14:36:53,009 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:36:53,011 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:36:53,011 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:36:53,014 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:36:53,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:30:25" (1/3) ... [2021-11-19 14:36:53,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fb48415 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:36:53, skipping insertion in model container [2021-11-19 14:36:53,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:29" (2/3) ... [2021-11-19 14:36:53,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fb48415 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:36:53, skipping insertion in model container [2021-11-19 14:36:53,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:36:53" (3/3) ... [2021-11-19 14:36:53,018 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i [2021-11-19 14:36:53,023 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:36:53,024 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 14:36:53,087 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:36:53,094 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 14:36:53,094 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 14:36:53,157 INFO L276 IsEmpty]: Start isEmpty. Operand has 2126 states, 1431 states have (on average 1.443046820405311) internal successors, (2065), 1534 states have internal predecessors, (2065), 623 states have call successors, (623), 72 states have call predecessors, (623), 71 states have return successors, (616), 547 states have call predecessors, (616), 616 states have call successors, (616) [2021-11-19 14:36:53,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-19 14:36:53,176 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:36:53,177 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:36:53,178 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:36:53,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:36:53,184 INFO L85 PathProgramCache]: Analyzing trace with hash -273379345, now seen corresponding path program 1 times [2021-11-19 14:36:53,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:36:53,208 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [489756499] [2021-11-19 14:36:53,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:36:53,209 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:36:53,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:36:53,215 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:36:53,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:37:03,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:37:03,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 4863 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:37:03,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:37:05,942 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2021-11-19 14:37:05,942 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:37:07,626 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-19 14:37:07,627 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:37:07,627 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [489756499] [2021-11-19 14:37:07,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [489756499] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:37:07,628 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:37:07,628 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:37:07,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315732132] [2021-11-19 14:37:07,637 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:37:07,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:37:07,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:37:07,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:37:07,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:37:07,691 INFO L87 Difference]: Start difference. First operand has 2126 states, 1431 states have (on average 1.443046820405311) internal successors, (2065), 1534 states have internal predecessors, (2065), 623 states have call successors, (623), 72 states have call predecessors, (623), 71 states have return successors, (616), 547 states have call predecessors, (616), 616 states have call successors, (616) Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2021-11-19 14:37:10,123 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:38:05,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:38:05,765 INFO L93 Difference]: Finished difference Result 8261 states and 12907 transitions. [2021-11-19 14:38:05,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:38:05,769 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 129 [2021-11-19 14:38:05,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:38:05,913 INFO L225 Difference]: With dead ends: 8261 [2021-11-19 14:38:05,913 INFO L226 Difference]: Without dead ends: 6139 [2021-11-19 14:38:05,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:38:05,956 INFO L933 BasicCegarLoop]: 4483 mSDtfsCounter, 8370 mSDsluCounter, 5173 mSDsCounter, 0 mSdLazyCounter, 1277 mSolverCounterSat, 1196 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8370 SdHoareTripleChecker+Valid, 9656 SdHoareTripleChecker+Invalid, 2474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1196 IncrementalHoareTripleChecker+Valid, 1277 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 57.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:38:05,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8370 Valid, 9656 Invalid, 2474 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1196 Valid, 1277 Invalid, 1 Unknown, 0 Unchecked, 57.3s Time] [2021-11-19 14:38:05,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6139 states. [2021-11-19 14:38:06,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6139 to 6127. [2021-11-19 14:38:06,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6127 states, 4146 states have (on average 1.449831162566329) internal successors, (6011), 4455 states have internal predecessors, (6011), 1774 states have call successors, (1774), 207 states have call predecessors, (1774), 206 states have return successors, (1770), 1563 states have call predecessors, (1770), 1770 states have call successors, (1770) [2021-11-19 14:38:07,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6127 states to 6127 states and 9555 transitions. [2021-11-19 14:38:07,087 INFO L78 Accepts]: Start accepts. Automaton has 6127 states and 9555 transitions. Word has length 129 [2021-11-19 14:38:07,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:38:07,090 INFO L470 AbstractCegarLoop]: Abstraction has 6127 states and 9555 transitions. [2021-11-19 14:38:07,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2021-11-19 14:38:07,091 INFO L276 IsEmpty]: Start isEmpty. Operand 6127 states and 9555 transitions. [2021-11-19 14:38:07,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-19 14:38:07,160 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:38:07,161 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:38:07,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:38:07,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:38:07,389 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:38:07,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:38:07,389 INFO L85 PathProgramCache]: Analyzing trace with hash 944523105, now seen corresponding path program 1 times [2021-11-19 14:38:07,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:38:07,396 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [603392963] [2021-11-19 14:38:07,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:38:07,399 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:38:07,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:38:07,401 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:38:07,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:38:17,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:38:17,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 4991 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:38:18,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:38:33,012 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2021-11-19 14:38:33,012 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:38:39,832 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2021-11-19 14:38:39,832 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:38:39,832 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [603392963] [2021-11-19 14:38:39,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [603392963] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:38:39,832 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:38:39,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-19 14:38:39,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911982895] [2021-11-19 14:38:39,833 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:38:39,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:38:39,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:38:39,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:38:39,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:38:39,837 INFO L87 Difference]: Start difference. First operand 6127 states and 9555 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (39), 4 states have call predecessors, (39), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-19 14:38:42,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:38:42,454 INFO L93 Difference]: Finished difference Result 6133 states and 9560 transitions. [2021-11-19 14:38:42,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:38:42,455 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (39), 4 states have call predecessors, (39), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 188 [2021-11-19 14:38:42,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:38:42,543 INFO L225 Difference]: With dead ends: 6133 [2021-11-19 14:38:42,543 INFO L226 Difference]: Without dead ends: 6131 [2021-11-19 14:38:42,553 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:38:42,554 INFO L933 BasicCegarLoop]: 3275 mSDtfsCounter, 3193 mSDsluCounter, 9814 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3198 SdHoareTripleChecker+Valid, 13089 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-19 14:38:42,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3198 Valid, 13089 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-19 14:38:42,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6131 states. [2021-11-19 14:38:43,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6131 to 6131. [2021-11-19 14:38:43,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6131 states, 4149 states have (on average 1.4495059050373584) internal successors, (6014), 4458 states have internal predecessors, (6014), 1774 states have call successors, (1774), 208 states have call predecessors, (1774), 207 states have return successors, (1770), 1563 states have call predecessors, (1770), 1770 states have call successors, (1770) [2021-11-19 14:38:43,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6131 states to 6131 states and 9558 transitions. [2021-11-19 14:38:43,134 INFO L78 Accepts]: Start accepts. Automaton has 6131 states and 9558 transitions. Word has length 188 [2021-11-19 14:38:43,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:38:43,137 INFO L470 AbstractCegarLoop]: Abstraction has 6131 states and 9558 transitions. [2021-11-19 14:38:43,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (39), 4 states have call predecessors, (39), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-19 14:38:43,139 INFO L276 IsEmpty]: Start isEmpty. Operand 6131 states and 9558 transitions. [2021-11-19 14:38:43,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-11-19 14:38:43,180 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:38:43,181 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 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] [2021-11-19 14:38:43,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:38:43,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:38:43,401 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:38:43,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:38:43,401 INFO L85 PathProgramCache]: Analyzing trace with hash 612909612, now seen corresponding path program 1 times [2021-11-19 14:38:43,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:38:43,408 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1840002310] [2021-11-19 14:38:43,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:38:43,409 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:38:43,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:38:43,410 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:38:43,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:38:53,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:38:53,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 4998 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:38:53,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:39:09,070 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2021-11-19 14:39:09,070 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:39:15,675 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2021-11-19 14:39:15,675 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:39:15,675 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1840002310] [2021-11-19 14:39:15,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1840002310] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:39:15,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:39:15,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 14:39:15,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139505140] [2021-11-19 14:39:15,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:39:15,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:39:15,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:39:15,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:39:15,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:39:15,679 INFO L87 Difference]: Start difference. First operand 6131 states and 9558 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-19 14:39:17,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:39:17,810 INFO L93 Difference]: Finished difference Result 6137 states and 9563 transitions. [2021-11-19 14:39:17,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:39:17,813 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 193 [2021-11-19 14:39:17,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:39:17,907 INFO L225 Difference]: With dead ends: 6137 [2021-11-19 14:39:17,907 INFO L226 Difference]: Without dead ends: 6135 [2021-11-19 14:39:17,920 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 379 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:39:17,927 INFO L933 BasicCegarLoop]: 3278 mSDtfsCounter, 3218 mSDsluCounter, 6543 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3222 SdHoareTripleChecker+Valid, 9821 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-19 14:39:17,928 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3222 Valid, 9821 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-19 14:39:17,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6135 states. [2021-11-19 14:39:18,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6135 to 6135. [2021-11-19 14:39:18,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6135 states, 4152 states have (on average 1.4491811175337186) internal successors, (6017), 4461 states have internal predecessors, (6017), 1774 states have call successors, (1774), 209 states have call predecessors, (1774), 208 states have return successors, (1770), 1563 states have call predecessors, (1770), 1770 states have call successors, (1770) [2021-11-19 14:39:18,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6135 states to 6135 states and 9561 transitions. [2021-11-19 14:39:18,562 INFO L78 Accepts]: Start accepts. Automaton has 6135 states and 9561 transitions. Word has length 193 [2021-11-19 14:39:18,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:39:18,564 INFO L470 AbstractCegarLoop]: Abstraction has 6135 states and 9561 transitions. [2021-11-19 14:39:18,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-19 14:39:18,564 INFO L276 IsEmpty]: Start isEmpty. Operand 6135 states and 9561 transitions. [2021-11-19 14:39:18,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-11-19 14:39:18,609 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:39:18,610 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:39:18,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:39:18,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:39:18,833 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:39:18,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:39:18,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1690475007, now seen corresponding path program 1 times [2021-11-19 14:39:18,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:39:18,840 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2034193925] [2021-11-19 14:39:18,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:39:18,844 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:39:18,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:39:18,845 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:39:18,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:39:29,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:39:29,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 5005 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:39:29,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:39:46,187 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2021-11-19 14:39:46,187 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:39:53,262 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2021-11-19 14:39:53,262 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:39:53,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2034193925] [2021-11-19 14:39:53,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2034193925] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:39:53,263 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:39:53,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 14:39:53,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258357410] [2021-11-19 14:39:53,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:39:53,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:39:53,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:39:53,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:39:53,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:39:53,266 INFO L87 Difference]: Start difference. First operand 6135 states and 9561 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-19 14:39:55,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:39:55,499 INFO L93 Difference]: Finished difference Result 6141 states and 9566 transitions. [2021-11-19 14:39:55,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:39:55,501 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 198 [2021-11-19 14:39:55,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:39:55,587 INFO L225 Difference]: With dead ends: 6141 [2021-11-19 14:39:55,587 INFO L226 Difference]: Without dead ends: 6139 [2021-11-19 14:39:55,599 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 389 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:39:55,600 INFO L933 BasicCegarLoop]: 3278 mSDtfsCounter, 3218 mSDsluCounter, 6543 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3221 SdHoareTripleChecker+Valid, 9821 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-19 14:39:55,600 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3221 Valid, 9821 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-19 14:39:55,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6139 states. [2021-11-19 14:39:56,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6139 to 6139. [2021-11-19 14:39:56,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6139 states, 4155 states have (on average 1.4488567990373045) internal successors, (6020), 4464 states have internal predecessors, (6020), 1774 states have call successors, (1774), 210 states have call predecessors, (1774), 209 states have return successors, (1770), 1563 states have call predecessors, (1770), 1770 states have call successors, (1770) [2021-11-19 14:39:56,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6139 states to 6139 states and 9564 transitions. [2021-11-19 14:39:56,226 INFO L78 Accepts]: Start accepts. Automaton has 6139 states and 9564 transitions. Word has length 198 [2021-11-19 14:39:56,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:39:56,228 INFO L470 AbstractCegarLoop]: Abstraction has 6139 states and 9564 transitions. [2021-11-19 14:39:56,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-19 14:39:56,228 INFO L276 IsEmpty]: Start isEmpty. Operand 6139 states and 9564 transitions. [2021-11-19 14:39:56,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2021-11-19 14:39:56,275 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:39:56,276 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:39:56,465 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:39:56,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:39:56,489 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:39:56,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:39:56,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1685136448, now seen corresponding path program 1 times [2021-11-19 14:39:56,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:39:56,495 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1130846646] [2021-11-19 14:39:56,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:39:56,495 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:39:56,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:39:56,497 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:39:56,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:40:06,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:40:07,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 5055 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:40:07,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:40:10,194 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 448 trivial. 0 not checked. [2021-11-19 14:40:10,194 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:40:11,748 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2021-11-19 14:40:11,749 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:40:11,749 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1130846646] [2021-11-19 14:40:11,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1130846646] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:40:11,749 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:40:11,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:40:11,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479302393] [2021-11-19 14:40:11,749 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:40:11,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:40:11,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:40:11,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:40:11,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:40:11,751 INFO L87 Difference]: Start difference. First operand 6139 states and 9564 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 4 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2021-11-19 14:40:14,188 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.43s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:41:05,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:41:05,979 INFO L93 Difference]: Finished difference Result 14304 states and 22279 transitions. [2021-11-19 14:41:05,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:41:05,980 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 4 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 213 [2021-11-19 14:41:05,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:41:06,084 INFO L225 Difference]: With dead ends: 14304 [2021-11-19 14:41:06,084 INFO L226 Difference]: Without dead ends: 10185 [2021-11-19 14:41:06,158 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 422 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:41:06,159 INFO L933 BasicCegarLoop]: 6990 mSDtfsCounter, 6350 mSDsluCounter, 5836 mSDsCounter, 0 mSdLazyCounter, 1252 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6350 SdHoareTripleChecker+Valid, 12826 SdHoareTripleChecker+Invalid, 1269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1252 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.6s IncrementalHoareTripleChecker+Time [2021-11-19 14:41:06,159 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6350 Valid, 12826 Invalid, 1269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1252 Invalid, 1 Unknown, 0 Unchecked, 53.6s Time] [2021-11-19 14:41:06,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10185 states. [2021-11-19 14:41:07,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10185 to 10161. [2021-11-19 14:41:07,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10161 states, 6881 states have (on average 1.4497892748147072) internal successors, (9976), 7394 states have internal predecessors, (9976), 2933 states have call successors, (2933), 347 states have call predecessors, (2933), 346 states have return successors, (2929), 2584 states have call predecessors, (2929), 2929 states have call successors, (2929) [2021-11-19 14:41:07,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10161 states to 10161 states and 15838 transitions. [2021-11-19 14:41:07,211 INFO L78 Accepts]: Start accepts. Automaton has 10161 states and 15838 transitions. Word has length 213 [2021-11-19 14:41:07,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:41:07,212 INFO L470 AbstractCegarLoop]: Abstraction has 10161 states and 15838 transitions. [2021-11-19 14:41:07,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 4 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2021-11-19 14:41:07,212 INFO L276 IsEmpty]: Start isEmpty. Operand 10161 states and 15838 transitions. [2021-11-19 14:41:07,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-11-19 14:41:07,249 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:41:07,249 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 3, 3, 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] [2021-11-19 14:41:07,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:41:07,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:41:07,465 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:41:07,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:41:07,465 INFO L85 PathProgramCache]: Analyzing trace with hash 853243660, now seen corresponding path program 1 times [2021-11-19 14:41:07,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:41:07,469 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [961832862] [2021-11-19 14:41:07,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:41:07,470 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:41:07,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:41:07,470 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:41:07,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 14:41:17,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:41:17,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 5012 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:41:17,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:41:34,420 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2021-11-19 14:41:34,420 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:41:41,570 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2021-11-19 14:41:41,570 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:41:41,570 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [961832862] [2021-11-19 14:41:41,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [961832862] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:41:41,570 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:41:41,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 14:41:41,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280990649] [2021-11-19 14:41:41,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:41:41,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:41:41,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:41:41,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:41:41,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:41:41,572 INFO L87 Difference]: Start difference. First operand 10161 states and 15838 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-19 14:41:43,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:41:43,816 INFO L93 Difference]: Finished difference Result 10167 states and 15843 transitions. [2021-11-19 14:41:43,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:41:43,817 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 203 [2021-11-19 14:41:43,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:41:43,920 INFO L225 Difference]: With dead ends: 10167 [2021-11-19 14:41:43,920 INFO L226 Difference]: Without dead ends: 10165 [2021-11-19 14:41:43,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 407 GetRequests, 399 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:41:43,937 INFO L933 BasicCegarLoop]: 3278 mSDtfsCounter, 3218 mSDsluCounter, 6543 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3220 SdHoareTripleChecker+Valid, 9821 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-19 14:41:43,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3220 Valid, 9821 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-19 14:41:43,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10165 states. [2021-11-19 14:41:44,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10165 to 10165. [2021-11-19 14:41:44,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10165 states, 6884 states have (on average 1.4495932597327135) internal successors, (9979), 7397 states have internal predecessors, (9979), 2933 states have call successors, (2933), 348 states have call predecessors, (2933), 347 states have return successors, (2929), 2584 states have call predecessors, (2929), 2929 states have call successors, (2929) [2021-11-19 14:41:44,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10165 states to 10165 states and 15841 transitions. [2021-11-19 14:41:44,958 INFO L78 Accepts]: Start accepts. Automaton has 10165 states and 15841 transitions. Word has length 203 [2021-11-19 14:41:44,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:41:44,959 INFO L470 AbstractCegarLoop]: Abstraction has 10165 states and 15841 transitions. [2021-11-19 14:41:44,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-19 14:41:44,960 INFO L276 IsEmpty]: Start isEmpty. Operand 10165 states and 15841 transitions. [2021-11-19 14:41:44,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-11-19 14:41:44,994 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:41:44,995 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:41:45,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 14:41:45,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:41:45,209 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:41:45,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:41:45,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1019056991, now seen corresponding path program 1 times [2021-11-19 14:41:45,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:41:45,215 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1147925641] [2021-11-19 14:41:45,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:41:45,215 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:41:45,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:41:45,217 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:41:45,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 14:41:55,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:41:56,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 5019 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:41:56,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:42:12,967 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2021-11-19 14:42:12,968 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:42:19,686 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2021-11-19 14:42:19,686 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:42:19,687 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1147925641] [2021-11-19 14:42:19,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1147925641] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:42:19,687 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:42:19,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 14:42:19,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054439844] [2021-11-19 14:42:19,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:42:19,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:42:19,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:42:19,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:42:19,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:42:19,689 INFO L87 Difference]: Start difference. First operand 10165 states and 15841 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-19 14:42:21,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:42:21,837 INFO L93 Difference]: Finished difference Result 10171 states and 15846 transitions. [2021-11-19 14:42:21,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:42:21,838 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 208 [2021-11-19 14:42:21,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:42:21,925 INFO L225 Difference]: With dead ends: 10171 [2021-11-19 14:42:21,925 INFO L226 Difference]: Without dead ends: 10167 [2021-11-19 14:42:21,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 417 GetRequests, 409 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:42:21,940 INFO L933 BasicCegarLoop]: 3278 mSDtfsCounter, 3218 mSDsluCounter, 6543 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3219 SdHoareTripleChecker+Valid, 9821 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-19 14:42:21,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3219 Valid, 9821 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-19 14:42:21,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10167 states. [2021-11-19 14:42:22,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10167 to 10167. [2021-11-19 14:42:22,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10167 states, 6886 states have (on average 1.4493174557072321) internal successors, (9980), 7398 states have internal predecessors, (9980), 2933 states have call successors, (2933), 349 states have call predecessors, (2933), 347 states have return successors, (2929), 2584 states have call predecessors, (2929), 2929 states have call successors, (2929) [2021-11-19 14:42:23,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10167 states to 10167 states and 15842 transitions. [2021-11-19 14:42:23,036 INFO L78 Accepts]: Start accepts. Automaton has 10167 states and 15842 transitions. Word has length 208 [2021-11-19 14:42:23,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:42:23,037 INFO L470 AbstractCegarLoop]: Abstraction has 10167 states and 15842 transitions. [2021-11-19 14:42:23,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-19 14:42:23,038 INFO L276 IsEmpty]: Start isEmpty. Operand 10167 states and 15842 transitions. [2021-11-19 14:42:23,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-11-19 14:42:23,074 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:42:23,075 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 6, 5, 5, 5, 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] [2021-11-19 14:42:23,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 14:42:23,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:42:23,297 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:42:23,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:42:23,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1219776566, now seen corresponding path program 1 times [2021-11-19 14:42:23,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:42:23,303 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2122275310] [2021-11-19 14:42:23,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:42:23,303 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:42:23,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:42:23,306 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:42:23,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 14:42:33,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:42:34,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 5068 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:42:34,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:42:37,919 INFO L134 CoverageAnalysis]: Checked inductivity of 545 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2021-11-19 14:42:37,920 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:42:39,503 INFO L134 CoverageAnalysis]: Checked inductivity of 545 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked. [2021-11-19 14:42:39,503 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:42:39,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2122275310] [2021-11-19 14:42:39,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2122275310] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:42:39,503 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:42:39,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:42:39,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931048881] [2021-11-19 14:42:39,504 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:42:39,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:42:39,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:42:39,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:42:39,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:42:39,506 INFO L87 Difference]: Start difference. First operand 10167 states and 15842 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 4 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (35), 4 states have call predecessors, (35), 4 states have call successors, (35) [2021-11-19 14:42:41,910 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:43:35,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:43:35,042 INFO L93 Difference]: Finished difference Result 20397 states and 31736 transitions. [2021-11-19 14:43:35,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:43:35,043 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 4 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (35), 4 states have call predecessors, (35), 4 states have call successors, (35) Word has length 222 [2021-11-19 14:43:35,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:43:35,164 INFO L225 Difference]: With dead ends: 20397 [2021-11-19 14:43:35,164 INFO L226 Difference]: Without dead ends: 12250 [2021-11-19 14:43:35,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 442 GetRequests, 440 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:43:35,273 INFO L933 BasicCegarLoop]: 6996 mSDtfsCounter, 6369 mSDsluCounter, 5837 mSDsCounter, 0 mSdLazyCounter, 1253 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6369 SdHoareTripleChecker+Valid, 12833 SdHoareTripleChecker+Invalid, 1268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1253 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.6s IncrementalHoareTripleChecker+Time [2021-11-19 14:43:35,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6369 Valid, 12833 Invalid, 1268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1253 Invalid, 1 Unknown, 0 Unchecked, 54.6s Time] [2021-11-19 14:43:35,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12250 states. [2021-11-19 14:43:36,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12250 to 12190. [2021-11-19 14:43:36,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12190 states, 8254 states have (on average 1.4485098134237946) internal successors, (11956), 8868 states have internal predecessors, (11956), 3516 states have call successors, (3516), 421 states have call predecessors, (3516), 419 states have return successors, (3512), 3098 states have call predecessors, (3512), 3512 states have call successors, (3512) [2021-11-19 14:43:36,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12190 states to 12190 states and 18984 transitions. [2021-11-19 14:43:36,875 INFO L78 Accepts]: Start accepts. Automaton has 12190 states and 18984 transitions. Word has length 222 [2021-11-19 14:43:36,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:43:36,876 INFO L470 AbstractCegarLoop]: Abstraction has 12190 states and 18984 transitions. [2021-11-19 14:43:36,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 4 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (35), 4 states have call predecessors, (35), 4 states have call successors, (35) [2021-11-19 14:43:36,876 INFO L276 IsEmpty]: Start isEmpty. Operand 12190 states and 18984 transitions. [2021-11-19 14:43:36,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2021-11-19 14:43:36,911 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:43:36,912 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 6, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:43:37,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-19 14:43:37,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:43:37,133 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:43:37,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:43:37,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1806973972, now seen corresponding path program 1 times [2021-11-19 14:43:37,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:43:37,139 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1518092853] [2021-11-19 14:43:37,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:43:37,139 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:43:37,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:43:37,141 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:43:37,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64b72292-e620-44c8-9049-34f49d4a99ce/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process