./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-pci-ngene-ngene.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF --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 df4f0c8d40dc980084ec2f9936d9bc7fc71c78b40a0de276eef2539e9d717dce --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:04:57,693 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:04:57,697 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:04:57,765 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:04:57,766 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:04:57,771 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:04:57,774 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:04:57,780 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:04:57,784 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:04:57,794 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:04:57,796 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:04:57,798 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:04:57,799 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:04:57,803 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:04:57,806 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:04:57,812 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:04:57,815 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:04:57,816 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:04:57,819 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:04:57,832 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:04:57,835 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:04:57,837 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:04:57,842 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:04:57,843 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:04:57,855 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:04:57,855 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:04:57,856 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:04:57,859 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:04:57,860 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:04:57,862 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:04:57,862 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:04:57,864 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:04:57,866 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:04:57,868 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:04:57,869 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:04:57,870 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:04:57,871 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:04:57,871 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:04:57,872 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:04:57,873 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:04:57,874 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:04:57,875 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 23:04:57,928 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:04:57,929 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:04:57,931 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:04:57,931 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:04:57,931 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:04:57,932 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:04:57,932 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:04:57,932 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:04:57,933 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:04:57,933 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:04:57,934 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:04:57,935 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:04:57,935 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:04:57,935 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:04:57,936 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:04:57,936 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:04:57,937 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:04:57,937 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:04:57,937 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:04:57,938 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:04:57,938 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:04:57,938 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:04:57,939 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:04:57,939 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:04:57,939 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:04:57,939 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:04:57,940 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:04:57,940 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:04:57,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:04:57,941 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:04:57,941 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:04:57,941 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:04:57,942 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:04:57,942 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:04:57,942 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:04:57,943 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:04:57,943 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:04:57,943 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_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df4f0c8d40dc980084ec2f9936d9bc7fc71c78b40a0de276eef2539e9d717dce [2021-11-12 23:04:58,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:04:58,291 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:04:58,294 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:04:58,296 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:04:58,297 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:04:58,298 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i [2021-11-12 23:04:58,407 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/data/8ee0c6edd/f66056f2b9fd4d50986d20ed2d050b85/FLAG50e5ef6c9 [2021-11-12 23:04:59,649 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:04:59,651 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i [2021-11-12 23:04:59,735 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/data/8ee0c6edd/f66056f2b9fd4d50986d20ed2d050b85/FLAG50e5ef6c9 [2021-11-12 23:04:59,913 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/data/8ee0c6edd/f66056f2b9fd4d50986d20ed2d050b85 [2021-11-12 23:04:59,918 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:04:59,922 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:04:59,926 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:04:59,927 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:04:59,931 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:04:59,932 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:04:59" (1/1) ... [2021-11-12 23:04:59,935 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7511c9fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:04:59, skipping insertion in model container [2021-11-12 23:04:59,935 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:04:59" (1/1) ... [2021-11-12 23:04:59,947 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:05:00,150 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:05:05,064 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[415958,415971] [2021-11-12 23:05:05,068 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[416127,416140] [2021-11-12 23:05:05,069 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[416294,416307] [2021-11-12 23:05:05,069 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[416462,416475] [2021-11-12 23:05:05,088 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:05:05,167 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) [2021-11-12 23:05:05,168 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5a15a374 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:05:05, skipping insertion in model container [2021-11-12 23:05:05,168 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:05:05,169 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 23:05:05,171 INFO L158 Benchmark]: Toolchain (without parser) took 5247.78ms. Allocated memory was 100.7MB in the beginning and 169.9MB in the end (delta: 69.2MB). Free memory was 68.6MB in the beginning and 73.0MB in the end (delta: -4.4MB). Peak memory consumption was 65.2MB. Max. memory is 16.1GB. [2021-11-12 23:05:05,172 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 83.9MB. Free memory was 39.0MB in the beginning and 39.0MB in the end (delta: 45.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:05:05,174 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5242.52ms. Allocated memory was 100.7MB in the beginning and 169.9MB in the end (delta: 69.2MB). Free memory was 68.6MB in the beginning and 73.0MB in the end (delta: -4.4MB). Peak memory consumption was 65.2MB. Max. memory is 16.1GB. [2021-11-12 23:05:05,233 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 83.9MB. Free memory was 39.0MB in the beginning and 39.0MB in the end (delta: 45.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 5242.52ms. Allocated memory was 100.7MB in the beginning and 169.9MB in the end (delta: 69.2MB). Free memory was 68.6MB in the beginning and 73.0MB in the end (delta: -4.4MB). Peak memory consumption was 65.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7247]: 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_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF --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 df4f0c8d40dc980084ec2f9936d9bc7fc71c78b40a0de276eef2539e9d717dce --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:05:08,167 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:05:08,172 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:05:08,226 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:05:08,226 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:05:08,228 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:05:08,231 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:05:08,234 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:05:08,237 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:05:08,239 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:05:08,240 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:05:08,242 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:05:08,243 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:05:08,245 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:05:08,247 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:05:08,249 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:05:08,251 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:05:08,253 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:05:08,256 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:05:08,260 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:05:08,263 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:05:08,265 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:05:08,267 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:05:08,268 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:05:08,274 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:05:08,275 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:05:08,275 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:05:08,277 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:05:08,277 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:05:08,279 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:05:08,280 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:05:08,281 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:05:08,282 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:05:08,284 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:05:08,286 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:05:08,286 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:05:08,288 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:05:08,288 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:05:08,289 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:05:08,290 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:05:08,291 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:05:08,296 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 23:05:08,353 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:05:08,354 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:05:08,355 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:05:08,355 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:05:08,355 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:05:08,356 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:05:08,356 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:05:08,356 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:05:08,356 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:05:08,357 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:05:08,358 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:05:08,358 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:05:08,358 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:05:08,358 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:05:08,359 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:05:08,359 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:05:08,359 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 23:05:08,359 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 23:05:08,360 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:05:08,360 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:05:08,360 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:05:08,360 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:05:08,361 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 23:05:08,361 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:05:08,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:05:08,361 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:05:08,362 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:05:08,362 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:05:08,362 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 23:05:08,362 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 23:05:08,363 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:05:08,363 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:05:08,363 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:05:08,363 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_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df4f0c8d40dc980084ec2f9936d9bc7fc71c78b40a0de276eef2539e9d717dce [2021-11-12 23:05:08,834 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:05:08,883 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:05:08,886 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:05:08,887 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:05:08,888 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:05:08,890 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i [2021-11-12 23:05:08,975 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/data/f849716f0/c1d972451a484f5eb71c1830d0a6ad48/FLAG45c91b2f5 [2021-11-12 23:05:10,361 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:05:10,361 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i [2021-11-12 23:05:10,447 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/data/f849716f0/c1d972451a484f5eb71c1830d0a6ad48/FLAG45c91b2f5 [2021-11-12 23:05:10,480 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/data/f849716f0/c1d972451a484f5eb71c1830d0a6ad48 [2021-11-12 23:05:10,483 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:05:10,488 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:05:10,490 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:05:10,491 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:05:10,494 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:05:10,496 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:05:10" (1/1) ... [2021-11-12 23:05:10,498 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37e8b3dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:05:10, skipping insertion in model container [2021-11-12 23:05:10,499 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:05:10" (1/1) ... [2021-11-12 23:05:10,532 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:05:10,762 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:05:15,894 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[415958,415971] [2021-11-12 23:05:15,897 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[416127,416140] [2021-11-12 23:05:15,898 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[416294,416307] [2021-11-12 23:05:15,899 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[416462,416475] [2021-11-12 23:05:15,916 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:05:16,051 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 23:05:16,195 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:05:16,862 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[415958,415971] [2021-11-12 23:05:16,863 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[416127,416140] [2021-11-12 23:05:16,864 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[416294,416307] [2021-11-12 23:05:16,864 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[416462,416475] [2021-11-12 23:05:16,872 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:05:16,914 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:05:17,652 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[415958,415971] [2021-11-12 23:05:17,652 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[416127,416140] [2021-11-12 23:05:17,654 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[416294,416307] [2021-11-12 23:05:17,655 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[416462,416475] [2021-11-12 23:05:17,662 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:05:17,938 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:05:17,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:05:17 WrapperNode [2021-11-12 23:05:17,939 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:05:17,940 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:05:17,941 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:05:17,941 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:05:17,949 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:05:17" (1/1) ... [2021-11-12 23:05:18,159 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:05:17" (1/1) ... [2021-11-12 23:05:18,490 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:05:18,491 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:05:18,492 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:05:18,492 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:05:18,502 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:05:17" (1/1) ... [2021-11-12 23:05:18,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:05:17" (1/1) ... [2021-11-12 23:05:18,584 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:05:17" (1/1) ... [2021-11-12 23:05:18,585 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:05:17" (1/1) ... [2021-11-12 23:05:18,826 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:05:17" (1/1) ... [2021-11-12 23:05:18,867 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:05:17" (1/1) ... [2021-11-12 23:05:18,949 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:05:17" (1/1) ... [2021-11-12 23:05:19,118 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:05:19,119 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:05:19,119 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:05:19,119 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:05:19,120 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:05:17" (1/1) ... [2021-11-12 23:05:19,143 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:05:19,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:05:19,181 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:05:19,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:05:19,254 INFO L130 BoogieDeclarations]: Found specification of procedure ngene_command_mutex [2021-11-12 23:05:19,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ngene_command_mutex [2021-11-12 23:05:19,254 INFO L130 BoogieDeclarations]: Found specification of procedure ngene_probe [2021-11-12 23:05:19,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ngene_probe [2021-11-12 23:05:19,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-12 23:05:19,255 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-12 23:05:19,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-12 23:05:19,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-12 23:05:19,255 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-12 23:05:19,255 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-12 23:05:19,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-12 23:05:19,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-12 23:05:19,256 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2021-11-12 23:05:19,256 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2021-11-12 23:05:19,256 INFO L130 BoogieDeclarations]: Found specification of procedure __symbol_put [2021-11-12 23:05:19,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __symbol_put [2021-11-12 23:05:19,257 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_generic_release [2021-11-12 23:05:19,257 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_generic_release [2021-11-12 23:05:19,257 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_generic_open [2021-11-12 23:05:19,257 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_generic_open [2021-11-12 23:05:19,257 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-12 23:05:19,257 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-12 23:05:19,257 INFO L130 BoogieDeclarations]: Found specification of procedure ngene_release_buffers [2021-11-12 23:05:19,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ngene_release_buffers [2021-11-12 23:05:19,258 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-12 23:05:19,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-12 23:05:19,258 INFO L130 BoogieDeclarations]: Found specification of procedure down [2021-11-12 23:05:19,259 INFO L138 BoogieDeclarations]: Found implementation of procedure down [2021-11-12 23:05:19,259 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-12 23:05:19,259 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-12 23:05:19,259 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-12 23:05:19,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-12 23:05:19,260 INFO L130 BoogieDeclarations]: Found specification of procedure tuner_attach_stv6110 [2021-11-12 23:05:19,260 INFO L138 BoogieDeclarations]: Found implementation of procedure tuner_attach_stv6110 [2021-11-12 23:05:19,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-12 23:05:19,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-12 23:05:19,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:05:19,261 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2021-11-12 23:05:19,261 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2021-11-12 23:05:19,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-12 23:05:19,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 23:05:19,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 23:05:19,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-12 23:05:19,263 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~TO~C_INT [2021-11-12 23:05:19,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~TO~C_INT [2021-11-12 23:05:19,264 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-12 23:05:19,264 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-12 23:05:19,264 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-11-12 23:05:19,264 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-11-12 23:05:19,264 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-12 23:05:19,265 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-12 23:05:19,265 INFO L130 BoogieDeclarations]: Found specification of procedure ngene_command_i2c_read [2021-11-12 23:05:19,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ngene_command_i2c_read [2021-11-12 23:05:19,266 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-12 23:05:19,266 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-12 23:05:19,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-12 23:05:19,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-12 23:05:19,267 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_ringbuffer_avail [2021-11-12 23:05:19,267 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_ringbuffer_avail [2021-11-12 23:05:19,267 INFO L130 BoogieDeclarations]: Found specification of procedure set_transfer [2021-11-12 23:05:19,267 INFO L138 BoogieDeclarations]: Found implementation of procedure set_transfer [2021-11-12 23:05:19,268 INFO L130 BoogieDeclarations]: Found specification of procedure ngene_resume [2021-11-12 23:05:19,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ngene_resume [2021-11-12 23:05:19,269 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_frontend_detach [2021-11-12 23:05:19,269 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_frontend_detach [2021-11-12 23:05:19,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-12 23:05:19,269 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-12 23:05:19,269 INFO L130 BoogieDeclarations]: Found specification of procedure ngene_shutdown [2021-11-12 23:05:19,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ngene_shutdown [2021-11-12 23:05:19,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-12 23:05:19,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-12 23:05:19,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_cmd_lock_of_ngene [2021-11-12 23:05:19,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_cmd_lock_of_ngene [2021-11-12 23:05:19,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-12 23:05:19,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-12 23:05:19,271 INFO L130 BoogieDeclarations]: Found specification of procedure memset_io [2021-11-12 23:05:19,271 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_io [2021-11-12 23:05:19,272 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_frontend [2021-11-12 23:05:19,272 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_frontend [2021-11-12 23:05:19,272 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2021-11-12 23:05:19,272 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2021-11-12 23:05:19,272 INFO L130 BoogieDeclarations]: Found specification of procedure ngene_command [2021-11-12 23:05:19,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ngene_command [2021-11-12 23:05:19,273 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-11-12 23:05:19,273 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-11-12 23:05:19,274 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-12 23:05:19,274 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-12 23:05:19,274 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-12 23:05:19,274 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-12 23:05:19,274 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-12 23:05:19,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-12 23:05:19,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-12 23:05:19,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-12 23:05:19,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 23:05:19,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-12 23:05:19,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-12 23:05:19,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-12 23:05:19,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-12 23:05:19,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2021-11-12 23:05:19,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2021-11-12 23:05:19,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-12 23:05:19,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-12 23:05:19,276 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_ringbuffer_write [2021-11-12 23:05:19,277 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_ringbuffer_write [2021-11-12 23:05:19,279 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_register_frontend [2021-11-12 23:05:19,282 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_register_frontend [2021-11-12 23:05:19,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-12 23:05:19,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-12 23:05:19,283 INFO L130 BoogieDeclarations]: Found specification of procedure ngene_remove [2021-11-12 23:05:19,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ngene_remove [2021-11-12 23:05:19,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_state_lock_of_ngene_channel [2021-11-12 23:05:19,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_state_lock_of_ngene_channel [2021-11-12 23:05:19,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 23:05:19,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-12 23:05:19,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-12 23:05:19,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-12 23:05:19,290 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-12 23:05:19,290 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-12 23:05:19,290 INFO L130 BoogieDeclarations]: Found specification of procedure ngene_stop [2021-11-12 23:05:19,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ngene_stop [2021-11-12 23:05:19,290 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2021-11-12 23:05:19,290 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2021-11-12 23:05:19,290 INFO L130 BoogieDeclarations]: Found specification of procedure ngene_i2c_init [2021-11-12 23:05:19,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ngene_i2c_init [2021-11-12 23:05:19,291 INFO L130 BoogieDeclarations]: Found specification of procedure sema_init [2021-11-12 23:05:19,291 INFO L138 BoogieDeclarations]: Found implementation of procedure sema_init [2021-11-12 23:05:19,291 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-11-12 23:05:19,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-11-12 23:05:19,291 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_del_adapter [2021-11-12 23:05:19,291 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_del_adapter [2021-11-12 23:05:19,292 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_ringbuffer_free [2021-11-12 23:05:19,292 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_ringbuffer_free [2021-11-12 23:05:19,292 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-12 23:05:19,292 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-12 23:05:19,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-12 23:05:19,292 INFO L130 BoogieDeclarations]: Found specification of procedure init_channels [2021-11-12 23:05:19,292 INFO L138 BoogieDeclarations]: Found implementation of procedure init_channels [2021-11-12 23:05:19,293 INFO L130 BoogieDeclarations]: Found specification of procedure free_ringbuffer [2021-11-12 23:05:19,293 INFO L138 BoogieDeclarations]: Found implementation of procedure free_ringbuffer [2021-11-12 23:05:19,293 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-11-12 23:05:19,293 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-11-12 23:05:19,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:05:19,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:05:19,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dvb_register_frontend [2021-11-12 23:05:19,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dvb_register_frontend [2021-11-12 23:05:19,294 INFO L130 BoogieDeclarations]: Found specification of procedure AllocateRingBuffers [2021-11-12 23:05:19,294 INFO L138 BoogieDeclarations]: Found implementation of procedure AllocateRingBuffers [2021-11-12 23:05:19,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 23:05:19,294 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-12 23:05:19,294 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-12 23:05:19,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 23:05:19,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 23:05:19,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-12 23:05:19,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-12 23:05:19,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-12 23:05:19,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-12 23:05:19,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-12 23:05:19,296 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_ringbuffer_init [2021-11-12 23:05:19,297 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_ringbuffer_init [2021-11-12 23:05:19,297 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2021-11-12 23:05:19,297 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2021-11-12 23:05:19,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-12 23:05:19,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-12 23:05:19,297 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-12 23:05:19,298 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-12 23:05:19,298 INFO L130 BoogieDeclarations]: Found specification of procedure demod_attach_stv0900 [2021-11-12 23:05:19,298 INFO L138 BoogieDeclarations]: Found implementation of procedure demod_attach_stv0900 [2021-11-12 23:05:19,298 INFO L130 BoogieDeclarations]: Found specification of procedure FillTSBuffer [2021-11-12 23:05:19,298 INFO L138 BoogieDeclarations]: Found implementation of procedure FillTSBuffer [2021-11-12 23:05:19,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_cmd_lock_of_ngene [2021-11-12 23:05:19,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_cmd_lock_of_ngene [2021-11-12 23:05:19,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_module_exit_ngene_12_2 [2021-11-12 23:05:19,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_module_exit_ngene_12_2 [2021-11-12 23:05:19,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-12 23:05:19,299 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-12 23:05:19,299 INFO L130 BoogieDeclarations]: Found specification of procedure create_ring_buffer [2021-11-12 23:05:19,299 INFO L138 BoogieDeclarations]: Found implementation of procedure create_ring_buffer [2021-11-12 23:05:19,299 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-12 23:05:19,300 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-12 23:05:19,300 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2021-11-12 23:05:19,300 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2021-11-12 23:05:19,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-11-12 23:05:19,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-11-12 23:05:19,300 INFO L130 BoogieDeclarations]: Found specification of procedure ngene_command_gpio_set [2021-11-12 23:05:19,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ngene_command_gpio_set [2021-11-12 23:05:19,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:05:19,301 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_read_eeprom [2021-11-12 23:05:19,301 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_read_eeprom [2021-11-12 23:05:19,301 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-12 23:05:19,301 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-12 23:05:19,301 INFO L130 BoogieDeclarations]: Found specification of procedure up [2021-11-12 23:05:19,301 INFO L138 BoogieDeclarations]: Found implementation of procedure up [2021-11-12 23:05:19,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 23:05:19,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 23:05:19,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 23:05:19,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-12 23:05:19,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 23:05:19,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 23:05:19,302 INFO L130 BoogieDeclarations]: Found specification of procedure my_dvb_dmxdev_ts_card_init [2021-11-12 23:05:19,302 INFO L138 BoogieDeclarations]: Found implementation of procedure my_dvb_dmxdev_ts_card_init [2021-11-12 23:05:19,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-12 23:05:19,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-12 23:05:19,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-12 23:05:19,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-12 23:05:19,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-12 23:05:19,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-12 23:05:19,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_state_lock_of_ngene_channel [2021-11-12 23:05:19,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_state_lock_of_ngene_channel [2021-11-12 23:05:19,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_66 [2021-11-12 23:05:19,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_66 [2021-11-12 23:05:19,304 INFO L130 BoogieDeclarations]: Found specification of procedure init_channel [2021-11-12 23:05:19,304 INFO L138 BoogieDeclarations]: Found implementation of procedure init_channel [2021-11-12 23:05:19,304 INFO L130 BoogieDeclarations]: Found specification of procedure release_channel [2021-11-12 23:05:19,304 INFO L138 BoogieDeclarations]: Found implementation of procedure release_channel [2021-11-12 23:05:19,304 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~$Pointer$ [2021-11-12 23:05:19,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~$Pointer$ [2021-11-12 23:05:19,305 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-12 23:05:19,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-12 23:05:19,305 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_ringbuffer_flush [2021-11-12 23:05:19,305 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_ringbuffer_flush [2021-11-12 23:05:19,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-12 23:05:19,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-12 23:05:19,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-12 23:05:19,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-12 23:05:19,306 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_transfer [2021-11-12 23:05:19,306 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_transfer [2021-11-12 23:05:19,306 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-12 23:05:19,306 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-12 23:05:19,306 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-12 23:05:19,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-12 23:05:19,306 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2021-11-12 23:05:19,308 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2021-11-12 23:05:19,312 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_67 [2021-11-12 23:05:19,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_67 [2021-11-12 23:05:19,312 INFO L130 BoogieDeclarations]: Found specification of procedure __symbol_get [2021-11-12 23:05:19,312 INFO L138 BoogieDeclarations]: Found implementation of procedure __symbol_get [2021-11-12 23:05:19,313 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-12 23:05:19,313 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-12 23:05:19,313 INFO L130 BoogieDeclarations]: Found specification of procedure drxk_gate_ctrl [2021-11-12 23:05:19,313 INFO L138 BoogieDeclarations]: Found implementation of procedure drxk_gate_ctrl [2021-11-12 23:05:19,313 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-12 23:05:19,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-12 23:05:19,317 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-12 23:05:19,317 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-12 23:05:19,317 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-11-12 23:05:19,318 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-11-12 23:05:19,318 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-12 23:05:19,318 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-12 23:05:19,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dvb_unregister_frontend [2021-11-12 23:05:19,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dvb_unregister_frontend [2021-11-12 23:05:19,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-12 23:05:19,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-12 23:05:48,214 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-12 23:06:41,473 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-12 23:06:41,612 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:06:41,612 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-12 23:06:41,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:06:41 BoogieIcfgContainer [2021-11-12 23:06:41,621 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:06:41,625 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:06:41,625 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:06:41,628 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:06:41,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:05:10" (1/3) ... [2021-11-12 23:06:41,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ab917e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:06:41, skipping insertion in model container [2021-11-12 23:06:41,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:05:17" (2/3) ... [2021-11-12 23:06:41,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ab917e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:06:41, skipping insertion in model container [2021-11-12 23:06:41,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:06:41" (3/3) ... [2021-11-12 23:06:41,633 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i [2021-11-12 23:06:41,640 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:06:41,640 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-12 23:06:41,735 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:06:41,749 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 [2021-11-12 23:06:41,749 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-12 23:06:41,835 INFO L276 IsEmpty]: Start isEmpty. Operand has 2042 states, 1436 states have (on average 1.318941504178273) internal successors, (1894), 1458 states have internal predecessors, (1894), 493 states have call successors, (493), 111 states have call predecessors, (493), 110 states have return successors, (485), 485 states have call predecessors, (485), 485 states have call successors, (485) [2021-11-12 23:06:41,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-11-12 23:06:41,860 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:06:41,861 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:06:41,862 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 23:06:41,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:06:41,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1933347178, now seen corresponding path program 1 times [2021-11-12 23:06:41,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:06:41,895 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [509349448] [2021-11-12 23:06:41,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:06:41,896 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:06:41,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:06:41,907 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:06:41,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 23:06:48,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:06:49,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 2763 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:06:49,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:06:49,846 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2021-11-12 23:06:49,846 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:06:50,441 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-11-12 23:06:50,442 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:06:50,443 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [509349448] [2021-11-12 23:06:50,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [509349448] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:06:50,444 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:06:50,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:06:50,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503890894] [2021-11-12 23:06:50,447 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:06:50,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:06:50,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:06:50,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:06:50,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:06:50,509 INFO L87 Difference]: Start difference. First operand has 2042 states, 1436 states have (on average 1.318941504178273) internal successors, (1894), 1458 states have internal predecessors, (1894), 493 states have call successors, (493), 111 states have call predecessors, (493), 110 states have return successors, (485), 485 states have call predecessors, (485), 485 states have call successors, (485) Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2021-11-12 23:06:52,937 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:07:03,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:07:03,004 INFO L93 Difference]: Finished difference Result 7788 states and 11318 transitions. [2021-11-12 23:07:03,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:07:03,007 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 162 [2021-11-12 23:07:03,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:07:03,094 INFO L225 Difference]: With dead ends: 7788 [2021-11-12 23:07:03,094 INFO L226 Difference]: Without dead ends: 5728 [2021-11-12 23:07:03,128 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 320 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:07:03,132 INFO L933 BasicCegarLoop]: 3829 mSDtfsCounter, 7156 mSDsluCounter, 4542 mSDsCounter, 0 mSdLazyCounter, 941 mSolverCounterSat, 949 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10431.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7156 SdHoareTripleChecker+Valid, 8371 SdHoareTripleChecker+Invalid, 1891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 85.15ms SdHoareTripleChecker+Time, 949 IncrementalHoareTripleChecker+Valid, 941 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11757.43ms IncrementalHoareTripleChecker+Time [2021-11-12 23:07:03,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7156 Valid, 8371 Invalid, 1891 Unknown, 0 Unchecked, 85.15ms Time], IncrementalHoareTripleChecker [949 Valid, 941 Invalid, 1 Unknown, 0 Unchecked, 11757.43ms Time] [2021-11-12 23:07:03,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5728 states. [2021-11-12 23:07:03,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5728 to 5670. [2021-11-12 23:07:03,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5670 states, 4035 states have (on average 1.3197026022304832) internal successors, (5325), 4110 states have internal predecessors, (5325), 1328 states have call successors, (1328), 311 states have call predecessors, (1328), 304 states have return successors, (1379), 1303 states have call predecessors, (1379), 1324 states have call successors, (1379) [2021-11-12 23:07:03,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5670 states to 5670 states and 8032 transitions. [2021-11-12 23:07:03,624 INFO L78 Accepts]: Start accepts. Automaton has 5670 states and 8032 transitions. Word has length 162 [2021-11-12 23:07:03,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:07:03,626 INFO L470 AbstractCegarLoop]: Abstraction has 5670 states and 8032 transitions. [2021-11-12 23:07:03,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2021-11-12 23:07:03,627 INFO L276 IsEmpty]: Start isEmpty. Operand 5670 states and 8032 transitions. [2021-11-12 23:07:03,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-11-12 23:07:03,636 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:07:03,637 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:07:03,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 23:07:03,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:07:03,863 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 23:07:03,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:07:03,864 INFO L85 PathProgramCache]: Analyzing trace with hash 479270125, now seen corresponding path program 1 times [2021-11-12 23:07:03,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:07:03,869 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [520049386] [2021-11-12 23:07:03,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:07:03,869 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:07:03,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:07:03,873 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:07:03,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 23:07:10,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:07:10,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 2735 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:07:10,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:07:11,291 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2021-11-12 23:07:11,291 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:07:11,868 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-11-12 23:07:11,868 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:07:11,869 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [520049386] [2021-11-12 23:07:11,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [520049386] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:07:11,869 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:07:11,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:07:11,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910269795] [2021-11-12 23:07:11,870 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:07:11,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:07:11,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:07:11,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:07:11,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:07:11,878 INFO L87 Difference]: Start difference. First operand 5670 states and 8032 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2021-11-12 23:07:14,251 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:07:22,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:07:22,412 INFO L93 Difference]: Finished difference Result 22153 states and 31412 transitions. [2021-11-12 23:07:22,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:07:22,413 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 164 [2021-11-12 23:07:22,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:07:22,585 INFO L225 Difference]: With dead ends: 22153 [2021-11-12 23:07:22,585 INFO L226 Difference]: Without dead ends: 16512 [2021-11-12 23:07:22,634 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:07:22,635 INFO L933 BasicCegarLoop]: 3685 mSDtfsCounter, 5383 mSDsluCounter, 6787 mSDsCounter, 0 mSdLazyCounter, 1017 mSolverCounterSat, 32 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8715.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5383 SdHoareTripleChecker+Valid, 10472 SdHoareTripleChecker+Invalid, 1050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 49.02ms SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1017 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9621.39ms IncrementalHoareTripleChecker+Time [2021-11-12 23:07:22,636 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5383 Valid, 10472 Invalid, 1050 Unknown, 0 Unchecked, 49.02ms Time], IncrementalHoareTripleChecker [32 Valid, 1017 Invalid, 1 Unknown, 0 Unchecked, 9621.39ms Time] [2021-11-12 23:07:22,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16512 states. [2021-11-12 23:07:23,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16512 to 16484. [2021-11-12 23:07:23,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16484 states, 11777 states have (on average 1.3235968413008405) internal successors, (15588), 11980 states have internal predecessors, (15588), 3800 states have call successors, (3800), 923 states have call predecessors, (3800), 904 states have return successors, (3961), 3745 states have call predecessors, (3961), 3796 states have call successors, (3961) [2021-11-12 23:07:23,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16484 states to 16484 states and 23349 transitions. [2021-11-12 23:07:23,964 INFO L78 Accepts]: Start accepts. Automaton has 16484 states and 23349 transitions. Word has length 164 [2021-11-12 23:07:23,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:07:23,966 INFO L470 AbstractCegarLoop]: Abstraction has 16484 states and 23349 transitions. [2021-11-12 23:07:23,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2021-11-12 23:07:23,966 INFO L276 IsEmpty]: Start isEmpty. Operand 16484 states and 23349 transitions. [2021-11-12 23:07:23,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-11-12 23:07:23,978 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:07:23,979 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:07:24,080 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 23:07:24,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:07:24,196 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 23:07:24,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:07:24,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1559554435, now seen corresponding path program 1 times [2021-11-12 23:07:24,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:07:24,204 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1043528862] [2021-11-12 23:07:24,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:07:24,204 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:07:24,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:07:24,206 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:07:24,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 23:07:30,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:07:31,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 2825 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:07:31,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:07:31,727 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2021-11-12 23:07:31,727 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:07:32,275 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-11-12 23:07:32,276 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:07:32,276 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1043528862] [2021-11-12 23:07:32,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1043528862] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:07:32,276 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:07:32,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:07:32,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588728767] [2021-11-12 23:07:32,277 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:07:32,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:07:32,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:07:32,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:07:32,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:07:32,279 INFO L87 Difference]: Start difference. First operand 16484 states and 23349 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 4 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-12 23:07:34,647 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:07:41,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:07:41,594 INFO L93 Difference]: Finished difference Result 38340 states and 54317 transitions. [2021-11-12 23:07:41,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:07:41,599 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 4 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 180 [2021-11-12 23:07:41,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:07:41,919 INFO L225 Difference]: With dead ends: 38340 [2021-11-12 23:07:41,919 INFO L226 Difference]: Without dead ends: 21885 [2021-11-12 23:07:42,017 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 356 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:07:42,020 INFO L933 BasicCegarLoop]: 3388 mSDtfsCounter, 3822 mSDsluCounter, 3793 mSDsCounter, 0 mSdLazyCounter, 1051 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7707.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3822 SdHoareTripleChecker+Valid, 7181 SdHoareTripleChecker+Invalid, 1097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.81ms SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1051 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8473.34ms IncrementalHoareTripleChecker+Time [2021-11-12 23:07:42,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3822 Valid, 7181 Invalid, 1097 Unknown, 0 Unchecked, 29.81ms Time], IncrementalHoareTripleChecker [45 Valid, 1051 Invalid, 1 Unknown, 0 Unchecked, 8473.34ms Time] [2021-11-12 23:07:42,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21885 states. [2021-11-12 23:07:43,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21885 to 21823. [2021-11-12 23:07:43,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21823 states, 15586 states have (on average 1.3321570640318234) internal successors, (20763), 15853 states have internal predecessors, (20763), 4970 states have call successors, (4970), 1283 states have call predecessors, (4970), 1264 states have return successors, (5076), 4900 states have call predecessors, (5076), 4966 states have call successors, (5076) [2021-11-12 23:07:43,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21823 states to 21823 states and 30809 transitions. [2021-11-12 23:07:43,557 INFO L78 Accepts]: Start accepts. Automaton has 21823 states and 30809 transitions. Word has length 180 [2021-11-12 23:07:43,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:07:43,559 INFO L470 AbstractCegarLoop]: Abstraction has 21823 states and 30809 transitions. [2021-11-12 23:07:43,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 4 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-12 23:07:43,561 INFO L276 IsEmpty]: Start isEmpty. Operand 21823 states and 30809 transitions. [2021-11-12 23:07:43,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-11-12 23:07:43,567 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:07:43,568 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 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] [2021-11-12 23:07:43,670 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-12 23:07:43,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:07:43,791 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 23:07:43,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:07:43,792 INFO L85 PathProgramCache]: Analyzing trace with hash -589785325, now seen corresponding path program 1 times [2021-11-12 23:07:43,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:07:43,797 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [553078543] [2021-11-12 23:07:43,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:07:43,798 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:07:43,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:07:43,801 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:07:43,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 23:07:50,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:07:50,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 2940 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:07:50,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:07:51,468 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 597 trivial. 0 not checked. [2021-11-12 23:07:51,468 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:07:52,220 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 633 trivial. 0 not checked. [2021-11-12 23:07:52,221 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:07:52,221 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [553078543] [2021-11-12 23:07:52,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [553078543] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:07:52,221 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:07:52,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-12 23:07:52,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068844343] [2021-11-12 23:07:52,221 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:07:52,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:07:52,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:07:52,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:07:52,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:07:52,223 INFO L87 Difference]: Start difference. First operand 21823 states and 30809 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-12 23:07:54,619 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:07:56,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:07:56,093 INFO L93 Difference]: Finished difference Result 62176 states and 87874 transitions. [2021-11-12 23:07:56,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:07:56,094 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 200 [2021-11-12 23:07:56,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:07:56,324 INFO L225 Difference]: With dead ends: 62176 [2021-11-12 23:07:56,324 INFO L226 Difference]: Without dead ends: 40382 [2021-11-12 23:07:56,399 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 397 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:07:56,401 INFO L933 BasicCegarLoop]: 3334 mSDtfsCounter, 2614 mSDsluCounter, 2787 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2468.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2614 SdHoareTripleChecker+Valid, 6121 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.77ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2558.79ms IncrementalHoareTripleChecker+Time [2021-11-12 23:07:56,403 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2614 Valid, 6121 Invalid, 29 Unknown, 0 Unchecked, 13.77ms Time], IncrementalHoareTripleChecker [7 Valid, 21 Invalid, 1 Unknown, 0 Unchecked, 2558.79ms Time] [2021-11-12 23:07:56,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40382 states. [2021-11-12 23:07:58,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40382 to 40337. [2021-11-12 23:07:58,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40337 states, 28826 states have (on average 1.3323388607507112) internal successors, (38406), 29374 states have internal predecessors, (38406), 9167 states have call successors, (9167), 2378 states have call predecessors, (9167), 2341 states have return successors, (9383), 9010 states have call predecessors, (9383), 9163 states have call successors, (9383) [2021-11-12 23:07:59,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40337 states to 40337 states and 56956 transitions. [2021-11-12 23:07:59,258 INFO L78 Accepts]: Start accepts. Automaton has 40337 states and 56956 transitions. Word has length 200 [2021-11-12 23:07:59,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:07:59,271 INFO L470 AbstractCegarLoop]: Abstraction has 40337 states and 56956 transitions. [2021-11-12 23:07:59,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-12 23:07:59,272 INFO L276 IsEmpty]: Start isEmpty. Operand 40337 states and 56956 transitions. [2021-11-12 23:07:59,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2021-11-12 23:07:59,281 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:07:59,281 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:07:59,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 23:07:59,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:07:59,495 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 23:07:59,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:07:59,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1925037269, now seen corresponding path program 1 times [2021-11-12 23:07:59,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:07:59,500 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1459745705] [2021-11-12 23:07:59,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:07:59,500 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:07:59,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:07:59,501 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:07:59,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 23:08:05,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:08:06,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 2864 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:08:06,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:08:08,067 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 794 trivial. 0 not checked. [2021-11-12 23:08:08,067 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:08:09,141 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 794 trivial. 0 not checked. [2021-11-12 23:08:09,142 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:08:09,142 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1459745705] [2021-11-12 23:08:09,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1459745705] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:08:09,142 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:08:09,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-12 23:08:09,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015559759] [2021-11-12 23:08:09,143 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:08:09,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 23:08:09,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:08:09,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 23:08:09,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:08:09,146 INFO L87 Difference]: Start difference. First operand 40337 states and 56956 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (45), 4 states have call predecessors, (45), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-12 23:08:10,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:08:10,805 INFO L93 Difference]: Finished difference Result 40343 states and 56961 transitions. [2021-11-12 23:08:10,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:08:10,806 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (45), 4 states have call predecessors, (45), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 224 [2021-11-12 23:08:10,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:08:11,012 INFO L225 Difference]: With dead ends: 40343 [2021-11-12 23:08:11,013 INFO L226 Difference]: Without dead ends: 40341 [2021-11-12 23:08:11,029 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 441 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:08:11,030 INFO L933 BasicCegarLoop]: 2806 mSDtfsCounter, 2706 mSDsluCounter, 8391 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 134.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2719 SdHoareTripleChecker+Valid, 11197 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.43ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 144.37ms IncrementalHoareTripleChecker+Time [2021-11-12 23:08:11,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2719 Valid, 11197 Invalid, 38 Unknown, 0 Unchecked, 29.43ms Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 144.37ms Time] [2021-11-12 23:08:11,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40341 states. [2021-11-12 23:08:13,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40341 to 40341. [2021-11-12 23:08:13,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40341 states, 28829 states have (on average 1.3323042769433557) internal successors, (38409), 29377 states have internal predecessors, (38409), 9167 states have call successors, (9167), 2379 states have call predecessors, (9167), 2342 states have return successors, (9383), 9010 states have call predecessors, (9383), 9163 states have call successors, (9383) [2021-11-12 23:08:13,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40341 states to 40341 states and 56959 transitions. [2021-11-12 23:08:13,906 INFO L78 Accepts]: Start accepts. Automaton has 40341 states and 56959 transitions. Word has length 224 [2021-11-12 23:08:13,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:08:13,907 INFO L470 AbstractCegarLoop]: Abstraction has 40341 states and 56959 transitions. [2021-11-12 23:08:13,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (45), 4 states have call predecessors, (45), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-12 23:08:13,908 INFO L276 IsEmpty]: Start isEmpty. Operand 40341 states and 56959 transitions. [2021-11-12 23:08:13,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2021-11-12 23:08:13,920 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:08:13,921 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:08:14,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 23:08:14,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:08:14,143 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 23:08:14,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:08:14,144 INFO L85 PathProgramCache]: Analyzing trace with hash -29830303, now seen corresponding path program 1 times [2021-11-12 23:08:14,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:08:14,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1795645309] [2021-11-12 23:08:14,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:08:14,149 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:08:14,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:08:14,151 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:08:14,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 23:08:20,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:08:20,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 2871 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:08:20,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:08:22,678 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 794 trivial. 0 not checked. [2021-11-12 23:08:22,678 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:08:23,662 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 794 trivial. 0 not checked. [2021-11-12 23:08:23,662 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:08:23,663 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1795645309] [2021-11-12 23:08:23,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1795645309] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:08:23,663 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:08:23,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-12 23:08:23,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905713558] [2021-11-12 23:08:23,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:08:23,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:08:23,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:08:23,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:08:23,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:08:23,665 INFO L87 Difference]: Start difference. First operand 40341 states and 56959 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 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) [2021-11-12 23:08:25,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:08:25,382 INFO L93 Difference]: Finished difference Result 40347 states and 56964 transitions. [2021-11-12 23:08:25,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:08:25,383 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 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 229 [2021-11-12 23:08:25,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:08:25,540 INFO L225 Difference]: With dead ends: 40347 [2021-11-12 23:08:25,540 INFO L226 Difference]: Without dead ends: 40345 [2021-11-12 23:08:25,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 451 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:08:25,560 INFO L933 BasicCegarLoop]: 2809 mSDtfsCounter, 2734 mSDsluCounter, 5597 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 76.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2746 SdHoareTripleChecker+Valid, 8406 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.93ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 82.96ms IncrementalHoareTripleChecker+Time [2021-11-12 23:08:25,561 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2746 Valid, 8406 Invalid, 22 Unknown, 0 Unchecked, 19.93ms Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 82.96ms Time] [2021-11-12 23:08:25,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40345 states. [2021-11-12 23:08:27,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40345 to 40345. [2021-11-12 23:08:27,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40345 states, 28832 states have (on average 1.3322697003329633) internal successors, (38412), 29380 states have internal predecessors, (38412), 9167 states have call successors, (9167), 2380 states have call predecessors, (9167), 2343 states have return successors, (9383), 9010 states have call predecessors, (9383), 9163 states have call successors, (9383) [2021-11-12 23:08:28,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40345 states to 40345 states and 56962 transitions. [2021-11-12 23:08:28,150 INFO L78 Accepts]: Start accepts. Automaton has 40345 states and 56962 transitions. Word has length 229 [2021-11-12 23:08:28,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:08:28,156 INFO L470 AbstractCegarLoop]: Abstraction has 40345 states and 56962 transitions. [2021-11-12 23:08:28,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 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) [2021-11-12 23:08:28,156 INFO L276 IsEmpty]: Start isEmpty. Operand 40345 states and 56962 transitions. [2021-11-12 23:08:28,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2021-11-12 23:08:28,167 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:08:28,168 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:08:28,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-12 23:08:28,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:08:28,391 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 23:08:28,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:08:28,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1383713806, now seen corresponding path program 1 times [2021-11-12 23:08:28,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:08:28,396 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1364935884] [2021-11-12 23:08:28,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:08:28,396 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:08:28,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:08:28,398 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:08:28,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 23:08:34,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:08:35,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 2922 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:08:35,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:08:35,747 INFO L134 CoverageAnalysis]: Checked inductivity of 810 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 735 trivial. 0 not checked. [2021-11-12 23:08:35,747 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:08:36,287 INFO L134 CoverageAnalysis]: Checked inductivity of 810 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2021-11-12 23:08:36,288 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:08:36,288 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1364935884] [2021-11-12 23:08:36,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1364935884] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:08:36,288 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:08:36,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:08:36,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564066236] [2021-11-12 23:08:36,288 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:08:36,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:08:36,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:08:36,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:08:36,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:08:36,290 INFO L87 Difference]: Start difference. First operand 40345 states and 56962 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 4 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2021-11-12 23:08:38,647 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 [] [2021-11-12 23:08:48,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:08:48,411 INFO L93 Difference]: Finished difference Result 99634 states and 140632 transitions. [2021-11-12 23:08:48,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:08:48,412 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 4 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) Word has length 242 [2021-11-12 23:08:48,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:08:48,783 INFO L225 Difference]: With dead ends: 99634 [2021-11-12 23:08:48,783 INFO L226 Difference]: Without dead ends: 59687 [2021-11-12 23:08:49,152 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 482 GetRequests, 480 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:08:49,153 INFO L933 BasicCegarLoop]: 5139 mSDtfsCounter, 6025 mSDsluCounter, 4491 mSDsCounter, 0 mSdLazyCounter, 1006 mSolverCounterSat, 619 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8129.05ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6025 SdHoareTripleChecker+Valid, 9630 SdHoareTripleChecker+Invalid, 1626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 32.30ms SdHoareTripleChecker+Time, 619 IncrementalHoareTripleChecker+Valid, 1006 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9016.19ms IncrementalHoareTripleChecker+Time [2021-11-12 23:08:49,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6025 Valid, 9630 Invalid, 1626 Unknown, 0 Unchecked, 32.30ms Time], IncrementalHoareTripleChecker [619 Valid, 1006 Invalid, 1 Unknown, 0 Unchecked, 9016.19ms Time] [2021-11-12 23:08:49,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59687 states. [2021-11-12 23:08:52,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59687 to 59623. [2021-11-12 23:08:52,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59623 states, 42621 states have (on average 1.3274442176391918) internal successors, (56577), 43399 states have internal predecessors, (56577), 13520 states have call successors, (13520), 3540 states have call predecessors, (13520), 3479 states have return successors, (13846), 13321 states have call predecessors, (13846), 13516 states have call successors, (13846) [2021-11-12 23:08:52,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59623 states to 59623 states and 83943 transitions. [2021-11-12 23:08:52,656 INFO L78 Accepts]: Start accepts. Automaton has 59623 states and 83943 transitions. Word has length 242 [2021-11-12 23:08:52,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:08:52,657 INFO L470 AbstractCegarLoop]: Abstraction has 59623 states and 83943 transitions. [2021-11-12 23:08:52,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 4 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2021-11-12 23:08:52,657 INFO L276 IsEmpty]: Start isEmpty. Operand 59623 states and 83943 transitions. [2021-11-12 23:08:52,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2021-11-12 23:08:52,668 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:08:52,669 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:08:52,754 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-12 23:08:52,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:08:52,891 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 23:08:52,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:08:52,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1807453333, now seen corresponding path program 1 times [2021-11-12 23:08:52,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:08:52,895 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1007659718] [2021-11-12 23:08:52,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:08:52,895 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:08:52,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:08:52,896 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:08:52,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-12 23:08:59,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:08:59,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 2921 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:08:59,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:09:00,036 INFO L134 CoverageAnalysis]: Checked inductivity of 809 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 735 trivial. 0 not checked. [2021-11-12 23:09:00,036 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:09:00,737 INFO L134 CoverageAnalysis]: Checked inductivity of 809 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2021-11-12 23:09:00,737 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:09:00,737 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1007659718] [2021-11-12 23:09:00,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1007659718] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:09:00,738 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:09:00,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:09:00,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881520034] [2021-11-12 23:09:00,738 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:09:00,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:09:00,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:09:00,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:09:00,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:09:00,740 INFO L87 Difference]: Start difference. First operand 59623 states and 83943 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 4 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2021-11-12 23:09:03,119 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 [] [2021-11-12 23:09:14,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:09:14,053 INFO L93 Difference]: Finished difference Result 157344 states and 221705 transitions. [2021-11-12 23:09:14,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:09:14,054 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 4 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) Word has length 241 [2021-11-12 23:09:14,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:09:14,653 INFO L225 Difference]: With dead ends: 157344 [2021-11-12 23:09:14,653 INFO L226 Difference]: Without dead ends: 98119 [2021-11-12 23:09:14,809 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 480 GetRequests, 478 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:09:14,810 INFO L933 BasicCegarLoop]: 5850 mSDtfsCounter, 5409 mSDsluCounter, 4490 mSDsCounter, 0 mSdLazyCounter, 1003 mSolverCounterSat, 450 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7885.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5409 SdHoareTripleChecker+Valid, 10340 SdHoareTripleChecker+Invalid, 1454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 30.13ms SdHoareTripleChecker+Time, 450 IncrementalHoareTripleChecker+Valid, 1003 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8742.19ms IncrementalHoareTripleChecker+Time [2021-11-12 23:09:14,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5409 Valid, 10340 Invalid, 1454 Unknown, 0 Unchecked, 30.13ms Time], IncrementalHoareTripleChecker [450 Valid, 1003 Invalid, 1 Unknown, 0 Unchecked, 8742.19ms Time] [2021-11-12 23:09:14,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98119 states. [2021-11-12 23:09:19,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98119 to 98083. [2021-11-12 23:09:19,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98083 states, 70151 states have (on average 1.3280637482003108) internal successors, (93165), 71389 states have internal predecessors, (93165), 22190 states have call successors, (22190), 5824 states have call predecessors, (22190), 5739 states have return successors, (22736), 21931 states have call predecessors, (22736), 22186 states have call successors, (22736) [2021-11-12 23:09:20,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98083 states to 98083 states and 138091 transitions. [2021-11-12 23:09:20,866 INFO L78 Accepts]: Start accepts. Automaton has 98083 states and 138091 transitions. Word has length 241 [2021-11-12 23:09:20,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:09:20,867 INFO L470 AbstractCegarLoop]: Abstraction has 98083 states and 138091 transitions. [2021-11-12 23:09:20,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 4 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2021-11-12 23:09:20,867 INFO L276 IsEmpty]: Start isEmpty. Operand 98083 states and 138091 transitions. [2021-11-12 23:09:20,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-11-12 23:09:20,876 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:09:20,877 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:09:20,977 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-12 23:09:21,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:09:21,099 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 23:09:21,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:09:21,100 INFO L85 PathProgramCache]: Analyzing trace with hash -853603157, now seen corresponding path program 1 times [2021-11-12 23:09:21,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:09:21,104 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1649269826] [2021-11-12 23:09:21,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:09:21,104 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:09:21,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:09:21,105 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:09:21,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e44cf96-07a7-46a4-9b85-a7824eeb083e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-12 23:09:27,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:09:27,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 2878 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:09:27,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:09:29,380 INFO L134 CoverageAnalysis]: Checked inductivity of 802 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 798 trivial. 0 not checked. [2021-11-12 23:09:29,381 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:09:30,265 INFO L134 CoverageAnalysis]: Checked inductivity of 802 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 798 trivial. 0 not checked. [2021-11-12 23:09:30,266 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:09:30,266 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1649269826] [2021-11-12 23:09:30,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1649269826] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:09:30,266 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:09:30,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-12 23:09:30,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714834889] [2021-11-12 23:09:30,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:09:30,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:09:30,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:09:30,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:09:30,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:09:30,268 INFO L87 Difference]: Start difference. First operand 98083 states and 138091 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-12 23:09:33,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:09:33,998 INFO L93 Difference]: Finished difference Result 98089 states and 138096 transitions. [2021-11-12 23:09:33,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:09:33,999 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 234 [2021-11-12 23:09:33,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:09:34,311 INFO L225 Difference]: With dead ends: 98089 [2021-11-12 23:09:34,311 INFO L226 Difference]: Without dead ends: 98087 [2021-11-12 23:09:34,339 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 469 GetRequests, 461 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:09:34,340 INFO L933 BasicCegarLoop]: 2809 mSDtfsCounter, 2734 mSDsluCounter, 5597 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 65.05ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2745 SdHoareTripleChecker+Valid, 8406 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.00ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 69.64ms IncrementalHoareTripleChecker+Time [2021-11-12 23:09:34,340 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2745 Valid, 8406 Invalid, 22 Unknown, 0 Unchecked, 13.00ms Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 69.64ms Time] [2021-11-12 23:09:34,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98087 states.