./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-net-ethernet-intel-ixgbevf-ixgbevf.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2ff699a14ff18600b4164aac890b6c04e9203457f89a66ec1bef9ac9dce5edac --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 15:01:55,725 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 15:01:55,731 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 15:01:55,787 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 15:01:55,788 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 15:01:55,792 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 15:01:55,794 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 15:01:55,798 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 15:01:55,800 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 15:01:55,801 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 15:01:55,802 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 15:01:55,804 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 15:01:55,805 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 15:01:55,806 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 15:01:55,808 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 15:01:55,809 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 15:01:55,810 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 15:01:55,812 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 15:01:55,814 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 15:01:55,816 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 15:01:55,818 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 15:01:55,820 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 15:01:55,821 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 15:01:55,822 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 15:01:55,826 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 15:01:55,827 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 15:01:55,827 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 15:01:55,828 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 15:01:55,829 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 15:01:55,830 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 15:01:55,831 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 15:01:55,832 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 15:01:55,833 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 15:01:55,834 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 15:01:55,835 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 15:01:55,836 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 15:01:55,837 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 15:01:55,837 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 15:01:55,838 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 15:01:55,839 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 15:01:55,840 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 15:01:55,841 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 15:01:55,867 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 15:01:55,869 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 15:01:55,872 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 15:01:55,872 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 15:01:55,873 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 15:01:55,873 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 15:01:55,873 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 15:01:55,873 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 15:01:55,874 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 15:01:55,874 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 15:01:55,875 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 15:01:55,875 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 15:01:55,875 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 15:01:55,876 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 15:01:55,876 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 15:01:55,876 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 15:01:55,877 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 15:01:55,877 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 15:01:55,878 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 15:01:55,878 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 15:01:55,878 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 15:01:55,878 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 15:01:55,878 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 15:01:55,879 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 15:01:55,879 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 15:01:55,879 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 15:01:55,879 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 15:01:55,880 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 15:01:55,880 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:01:55,881 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 15:01:55,882 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 15:01:55,882 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 15:01:55,882 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 15:01:55,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 15:01:55,883 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 15:01:55,883 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 15:01:55,883 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 15:01:55,884 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_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ff699a14ff18600b4164aac890b6c04e9203457f89a66ec1bef9ac9dce5edac [2021-11-19 15:01:56,232 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 15:01:56,269 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 15:01:56,272 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 15:01:56,273 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 15:01:56,274 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 15:01:56,275 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i [2021-11-19 15:01:56,354 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/data/a7cf9a223/ec928f7695e54b1aad6296ca43577acd/FLAG745df610a [2021-11-19 15:01:57,494 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 15:01:57,494 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i [2021-11-19 15:01:57,574 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/data/a7cf9a223/ec928f7695e54b1aad6296ca43577acd/FLAG745df610a [2021-11-19 15:01:57,752 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/data/a7cf9a223/ec928f7695e54b1aad6296ca43577acd [2021-11-19 15:01:57,754 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 15:01:57,755 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 15:01:57,758 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 15:01:57,759 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 15:01:57,762 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 15:01:57,763 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:01:57" (1/1) ... [2021-11-19 15:01:57,764 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52f50faf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:01:57, skipping insertion in model container [2021-11-19 15:01:57,764 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:01:57" (1/1) ... [2021-11-19 15:01:57,771 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 15:01:58,006 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:01:58,825 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:01:59,080 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:01:59,082 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:02:01,872 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:02:02,162 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:02:02,174 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:02:02,407 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:02:02,408 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:02:02,644 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:02:02,653 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:02:04,509 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i[555016,555029] [2021-11-19 15:02:04,511 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i[555185,555198] [2021-11-19 15:02:04,512 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i[555352,555365] [2021-11-19 15:02:04,513 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i[555520,555533] [2021-11-19 15:02:04,544 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:02:04,632 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 15:02:04,632 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4368ebb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:02:04, skipping insertion in model container [2021-11-19 15:02:04,633 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 15:02:04,633 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 15:02:04,636 INFO L158 Benchmark]: Toolchain (without parser) took 6880.06ms. Allocated memory was 121.6MB in the beginning and 184.5MB in the end (delta: 62.9MB). Free memory was 85.8MB in the beginning and 71.1MB in the end (delta: 14.7MB). Peak memory consumption was 82.1MB. Max. memory is 16.1GB. [2021-11-19 15:02:04,639 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 86.0MB. Free memory is still 66.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 15:02:04,640 INFO L158 Benchmark]: CACSL2BoogieTranslator took 6874.54ms. Allocated memory was 121.6MB in the beginning and 184.5MB in the end (delta: 62.9MB). Free memory was 85.3MB in the beginning and 71.1MB in the end (delta: 14.2MB). Peak memory consumption was 82.1MB. Max. memory is 16.1GB. [2021-11-19 15:02:04,642 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 86.0MB. Free memory is still 66.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 6874.54ms. Allocated memory was 121.6MB in the beginning and 184.5MB in the end (delta: 62.9MB). Free memory was 85.3MB in the beginning and 71.1MB in the end (delta: 14.2MB). Peak memory consumption was 82.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6295]: 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_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2ff699a14ff18600b4164aac890b6c04e9203457f89a66ec1bef9ac9dce5edac --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 15:02:06,875 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 15:02:06,879 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 15:02:06,931 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 15:02:06,932 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 15:02:06,936 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 15:02:06,938 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 15:02:06,942 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 15:02:06,946 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 15:02:06,953 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 15:02:06,955 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 15:02:06,957 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 15:02:06,957 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 15:02:06,960 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 15:02:06,962 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 15:02:06,966 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 15:02:06,968 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 15:02:06,969 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 15:02:06,971 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 15:02:06,978 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 15:02:06,980 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 15:02:06,981 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 15:02:06,983 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 15:02:06,984 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 15:02:06,987 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 15:02:06,987 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 15:02:06,988 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 15:02:06,989 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 15:02:06,990 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 15:02:06,991 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 15:02:06,991 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 15:02:06,992 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 15:02:06,993 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 15:02:06,994 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 15:02:06,995 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 15:02:06,996 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 15:02:06,997 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 15:02:06,997 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 15:02:06,997 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 15:02:06,998 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 15:02:06,999 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 15:02:07,000 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 15:02:07,037 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 15:02:07,037 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 15:02:07,038 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 15:02:07,038 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 15:02:07,038 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 15:02:07,039 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 15:02:07,039 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 15:02:07,039 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 15:02:07,040 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 15:02:07,040 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 15:02:07,041 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 15:02:07,041 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 15:02:07,041 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 15:02:07,042 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 15:02:07,042 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 15:02:07,042 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 15:02:07,042 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 15:02:07,043 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 15:02:07,043 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 15:02:07,043 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 15:02:07,043 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 15:02:07,043 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 15:02:07,044 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 15:02:07,044 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 15:02:07,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:02:07,044 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 15:02:07,045 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 15:02:07,045 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 15:02:07,045 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 15:02:07,045 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 15:02:07,046 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 15:02:07,046 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 15:02:07,046 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 15:02:07,046 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_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ff699a14ff18600b4164aac890b6c04e9203457f89a66ec1bef9ac9dce5edac [2021-11-19 15:02:07,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 15:02:07,550 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 15:02:07,553 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 15:02:07,554 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 15:02:07,555 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 15:02:07,556 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i [2021-11-19 15:02:07,620 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/data/78ea00f82/573c7741284e47d69de77fd30c73d3ca/FLAG899136687 [2021-11-19 15:02:08,867 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 15:02:08,868 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i [2021-11-19 15:02:08,976 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/data/78ea00f82/573c7741284e47d69de77fd30c73d3ca/FLAG899136687 [2021-11-19 15:02:09,056 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/data/78ea00f82/573c7741284e47d69de77fd30c73d3ca [2021-11-19 15:02:09,059 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 15:02:09,061 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 15:02:09,064 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 15:02:09,065 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 15:02:09,068 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 15:02:09,069 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:02:09" (1/1) ... [2021-11-19 15:02:09,070 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33efc4d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:02:09, skipping insertion in model container [2021-11-19 15:02:09,070 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:02:09" (1/1) ... [2021-11-19 15:02:09,077 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 15:02:09,312 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:02:10,021 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:02:12,687 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:02:15,435 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i[555016,555029] [2021-11-19 15:02:15,438 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i[555185,555198] [2021-11-19 15:02:15,439 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i[555352,555365] [2021-11-19 15:02:15,441 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i[555520,555533] [2021-11-19 15:02:15,486 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:02:15,594 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 15:02:15,753 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:02:16,404 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i[555016,555029] [2021-11-19 15:02:16,405 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i[555185,555198] [2021-11-19 15:02:16,406 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i[555352,555365] [2021-11-19 15:02:16,407 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i[555520,555533] [2021-11-19 15:02:16,417 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:02:16,535 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 15:02:17,515 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i[555016,555029] [2021-11-19 15:02:17,516 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i[555185,555198] [2021-11-19 15:02:17,516 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i[555352,555365] [2021-11-19 15:02:17,517 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i[555520,555533] [2021-11-19 15:02:17,535 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:02:17,956 INFO L208 MainTranslator]: Completed translation [2021-11-19 15:02:17,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:02:17 WrapperNode [2021-11-19 15:02:17,957 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 15:02:17,959 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 15:02:17,959 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 15:02:17,959 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 15:02:17,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:02:17" (1/1) ... [2021-11-19 15:02:18,144 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:02:17" (1/1) ... [2021-11-19 15:02:18,521 INFO L137 Inliner]: procedures = 755, calls = 4332, calls flagged for inlining = 368, calls inlined = 334, statements flattened = 9619 [2021-11-19 15:02:18,522 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 15:02:18,523 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 15:02:18,523 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 15:02:18,524 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 15:02:18,542 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:02:17" (1/1) ... [2021-11-19 15:02:18,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:02:17" (1/1) ... [2021-11-19 15:02:18,604 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:02:17" (1/1) ... [2021-11-19 15:02:18,605 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:02:17" (1/1) ... [2021-11-19 15:02:18,866 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:02:17" (1/1) ... [2021-11-19 15:02:18,907 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:02:17" (1/1) ... [2021-11-19 15:02:18,972 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:02:17" (1/1) ... [2021-11-19 15:02:19,032 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 15:02:19,033 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 15:02:19,033 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 15:02:19,034 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 15:02:19,034 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:02:17" (1/1) ... [2021-11-19 15:02:19,041 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:02:19,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:02:19,071 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 15:02:19,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 15:02:19,116 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2021-11-19 15:02:19,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2021-11-19 15:02:19,117 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-19 15:02:19,117 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-19 15:02:19,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 15:02:19,118 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 15:02:19,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_0_6 [2021-11-19 15:02:19,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_0_6 [2021-11-19 15:02:19,118 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_clean_rx_irq [2021-11-19 15:02:19,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_clean_rx_irq [2021-11-19 15:02:19,118 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_setup_rx_resources [2021-11-19 15:02:19,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_setup_rx_resources [2021-11-19 15:02:19,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 15:02:19,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 15:02:19,119 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_tx_ctxtdesc [2021-11-19 15:02:19,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_tx_ctxtdesc [2021-11-19 15:02:19,120 INFO L130 BoogieDeclarations]: Found specification of procedure skb_header_pointer [2021-11-19 15:02:19,120 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_header_pointer [2021-11-19 15:02:19,120 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-19 15:02:19,120 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-19 15:02:19,120 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_write_eitr [2021-11-19 15:02:19,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_write_eitr [2021-11-19 15:02:19,121 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2021-11-19 15:02:19,121 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2021-11-19 15:02:19,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 15:02:19,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 15:02:19,121 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_set_uc_addr_vf [2021-11-19 15:02:19,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_set_uc_addr_vf [2021-11-19 15:02:19,122 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_del [2021-11-19 15:02:19,122 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_del [2021-11-19 15:02:19,122 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-19 15:02:19,122 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-19 15:02:19,123 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-19 15:02:19,123 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-19 15:02:19,123 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~bool~0~TO~~s32~0 [2021-11-19 15:02:19,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~bool~0~TO~~s32~0 [2021-11-19 15:02:19,123 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-19 15:02:19,123 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-19 15:02:19,124 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_desc_unused [2021-11-19 15:02:19,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_desc_unused [2021-11-19 15:02:19,124 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_poll_for_ack [2021-11-19 15:02:19,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_poll_for_ack [2021-11-19 15:02:19,124 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_setup_tx_resources [2021-11-19 15:02:19,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_setup_tx_resources [2021-11-19 15:02:19,125 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_remove [2021-11-19 15:02:19,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_remove [2021-11-19 15:02:19,125 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-19 15:02:19,125 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-19 15:02:19,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 15:02:19,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 15:02:19,126 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-19 15:02:19,126 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-19 15:02:19,126 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-19 15:02:19,126 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-19 15:02:19,126 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-19 15:02:19,126 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-19 15:02:19,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 15:02:19,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 15:02:19,127 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-19 15:02:19,127 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-19 15:02:19,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 15:02:19,127 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-19 15:02:19,128 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-19 15:02:19,128 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_resume [2021-11-19 15:02:19,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_resume [2021-11-19 15:02:19,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-19 15:02:19,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 15:02:19,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 15:02:19,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 15:02:19,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-19 15:02:19,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-19 15:02:19,129 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-11-19 15:02:19,129 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-11-19 15:02:19,129 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-19 15:02:19,130 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-19 15:02:19,130 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_write_mbx_vf [2021-11-19 15:02:19,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_write_mbx_vf [2021-11-19 15:02:19,130 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_read_posted_mbx [2021-11-19 15:02:19,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_read_posted_mbx [2021-11-19 15:02:19,130 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_read_mbx_vf [2021-11-19 15:02:19,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_read_mbx_vf [2021-11-19 15:02:19,131 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-19 15:02:19,131 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-19 15:02:19,131 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-11-19 15:02:19,131 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-11-19 15:02:19,131 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_reinit_locked [2021-11-19 15:02:19,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_reinit_locked [2021-11-19 15:02:19,132 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_up [2021-11-19 15:02:19,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_up [2021-11-19 15:02:19,132 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2021-11-19 15:02:19,132 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2021-11-19 15:02:19,132 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-19 15:02:19,132 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-19 15:02:19,132 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-19 15:02:19,133 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-19 15:02:19,133 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_free_irq [2021-11-19 15:02:19,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_free_irq [2021-11-19 15:02:19,133 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_set_rar_vf [2021-11-19 15:02:19,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_set_rar_vf [2021-11-19 15:02:19,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 15:02:19,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 15:02:19,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_78 [2021-11-19 15:02:19,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_78 [2021-11-19 15:02:19,134 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header_len [2021-11-19 15:02:19,134 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header_len [2021-11-19 15:02:19,134 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-19 15:02:19,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-19 15:02:19,135 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-19 15:02:19,135 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-19 15:02:19,135 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_set_vfta_vf [2021-11-19 15:02:19,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_set_vfta_vf [2021-11-19 15:02:19,135 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2021-11-19 15:02:19,136 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2021-11-19 15:02:19,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-19 15:02:19,136 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-19 15:02:19,136 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_down [2021-11-19 15:02:19,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_down [2021-11-19 15:02:19,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-19 15:02:19,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-19 15:02:19,137 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-19 15:02:19,137 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-19 15:02:19,137 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-19 15:02:19,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-19 15:02:19,137 INFO L130 BoogieDeclarations]: Found specification of procedure map_vector_to_txq [2021-11-19 15:02:19,137 INFO L138 BoogieDeclarations]: Found implementation of procedure map_vector_to_txq [2021-11-19 15:02:19,138 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_offset [2021-11-19 15:02:19,138 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_offset [2021-11-19 15:02:19,138 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_free_all_rx_resources [2021-11-19 15:02:19,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_free_all_rx_resources [2021-11-19 15:02:19,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-19 15:02:19,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-19 15:02:19,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_94 [2021-11-19 15:02:19,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_94 [2021-11-19 15:02:19,139 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-11-19 15:02:19,139 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-11-19 15:02:19,139 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_tx_timeout [2021-11-19 15:02:19,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_tx_timeout [2021-11-19 15:02:19,139 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-19 15:02:19,139 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-19 15:02:19,140 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2021-11-19 15:02:19,140 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2021-11-19 15:02:19,140 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_negotiate_api [2021-11-19 15:02:19,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_negotiate_api [2021-11-19 15:02:19,140 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-19 15:02:19,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-19 15:02:19,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 15:02:19,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-19 15:02:19,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-19 15:02:19,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-19 15:02:19,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-19 15:02:19,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-19 15:02:19,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-19 15:02:19,142 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_alloc_rx_buffers [2021-11-19 15:02:19,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_alloc_rx_buffers [2021-11-19 15:02:19,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-19 15:02:19,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-19 15:02:19,142 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_init_interrupt_scheme [2021-11-19 15:02:19,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_init_interrupt_scheme [2021-11-19 15:02:19,142 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-19 15:02:19,143 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-19 15:02:19,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 15:02:19,143 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-19 15:02:19,143 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-19 15:02:19,143 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 15:02:19,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 15:02:19,143 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-19 15:02:19,144 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-19 15:02:19,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 15:02:19,144 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-19 15:02:19,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 15:02:19,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 15:02:19,144 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_free_tx_resources [2021-11-19 15:02:19,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_free_tx_resources [2021-11-19 15:02:19,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 15:02:19,145 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_init_hw_vf [2021-11-19 15:02:19,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_init_hw_vf [2021-11-19 15:02:19,145 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-11-19 15:02:19,145 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-11-19 15:02:19,145 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_maybe_stop_tx [2021-11-19 15:02:19,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_maybe_stop_tx [2021-11-19 15:02:19,146 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_check_for_msg_vf [2021-11-19 15:02:19,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_check_for_msg_vf [2021-11-19 15:02:19,146 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~$Pointer$~TO~C_INT [2021-11-19 15:02:19,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~$Pointer$~TO~C_INT [2021-11-19 15:02:19,146 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-19 15:02:19,146 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-19 15:02:19,147 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2021-11-19 15:02:19,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2021-11-19 15:02:19,147 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_busy_poll_recv [2021-11-19 15:02:19,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_busy_poll_recv [2021-11-19 15:02:19,147 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_write_posted_mbx [2021-11-19 15:02:19,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_write_posted_mbx [2021-11-19 15:02:19,147 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~$Pointer$~TO~~s32~0 [2021-11-19 15:02:19,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~$Pointer$~TO~~s32~0 [2021-11-19 15:02:19,148 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-19 15:02:19,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-19 15:02:19,148 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-19 15:02:19,148 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-19 15:02:19,148 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-19 15:02:19,148 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-19 15:02:19,149 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~~s32~0 [2021-11-19 15:02:19,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~~s32~0 [2021-11-19 15:02:19,149 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_init_last_counter_stats [2021-11-19 15:02:19,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_init_last_counter_stats [2021-11-19 15:02:19,149 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_io_resume [2021-11-19 15:02:19,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_io_resume [2021-11-19 15:02:19,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-19 15:02:19,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-19 15:02:19,150 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_up_complete [2021-11-19 15:02:19,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_up_complete [2021-11-19 15:02:19,150 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_begin_bh [2021-11-19 15:02:19,150 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_begin_bh [2021-11-19 15:02:19,150 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_set_ivar [2021-11-19 15:02:19,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_set_ivar [2021-11-19 15:02:19,151 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_check_for_bit_vf [2021-11-19 15:02:19,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_check_for_bit_vf [2021-11-19 15:02:19,151 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-19 15:02:19,151 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-19 15:02:19,152 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-19 15:02:19,152 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-19 15:02:19,152 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_shutdown [2021-11-19 15:02:19,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_shutdown [2021-11-19 15:02:19,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 15:02:19,152 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_reset_interrupt_capability [2021-11-19 15:02:19,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_reset_interrupt_capability [2021-11-19 15:02:19,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 15:02:19,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 15:02:19,153 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-11-19 15:02:19,153 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-11-19 15:02:19,153 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_nway_reset [2021-11-19 15:02:19,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_nway_reset [2021-11-19 15:02:19,153 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-11-19 15:02:19,154 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-11-19 15:02:19,154 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_obtain_mbx_lock_vf [2021-11-19 15:02:19,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_obtain_mbx_lock_vf [2021-11-19 15:02:19,154 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_clean_tx_ring [2021-11-19 15:02:19,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_clean_tx_ring [2021-11-19 15:02:19,154 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_check_for_rst_vf [2021-11-19 15:02:19,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_check_for_rst_vf [2021-11-19 15:02:19,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 15:02:19,155 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_read_v2p_mailbox [2021-11-19 15:02:19,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_read_v2p_mailbox [2021-11-19 15:02:19,155 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-19 15:02:19,155 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-19 15:02:19,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 15:02:19,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 15:02:19,156 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_check_for_ack_vf [2021-11-19 15:02:19,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_check_for_ack_vf [2021-11-19 15:02:19,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 15:02:19,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 15:02:19,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 15:02:19,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 15:02:19,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 15:02:19,157 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_update_stats [2021-11-19 15:02:19,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_update_stats [2021-11-19 15:02:19,157 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_irq_enable [2021-11-19 15:02:19,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_irq_enable [2021-11-19 15:02:19,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 15:02:19,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 15:02:19,158 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-19 15:02:19,158 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-19 15:02:19,158 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-19 15:02:19,158 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-19 15:02:19,158 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-19 15:02:19,158 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_start_hw_vf [2021-11-19 15:02:19,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_start_hw_vf [2021-11-19 15:02:19,159 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-11-19 15:02:19,159 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-11-19 15:02:19,159 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-19 15:02:19,159 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-19 15:02:19,159 INFO L130 BoogieDeclarations]: Found specification of procedure napi_hash_del [2021-11-19 15:02:19,159 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_hash_del [2021-11-19 15:02:19,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-19 15:02:19,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-19 15:02:19,160 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_update_begin [2021-11-19 15:02:19,160 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_update_begin [2021-11-19 15:02:19,160 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_all_queues [2021-11-19 15:02:19,160 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_all_queues [2021-11-19 15:02:19,160 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_set_rx_mode [2021-11-19 15:02:19,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_set_rx_mode [2021-11-19 15:02:19,161 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-11-19 15:02:19,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-11-19 15:02:19,161 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-19 15:02:19,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-19 15:02:19,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 15:02:19,161 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 15:02:19,161 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~$Pointer$~X~~u32~0~TO~~s32~0 [2021-11-19 15:02:19,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~$Pointer$~X~~u32~0~TO~~s32~0 [2021-11-19 15:02:19,162 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_poll_for_msg [2021-11-19 15:02:19,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_poll_for_msg [2021-11-19 15:02:19,162 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_suspend [2021-11-19 15:02:19,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_suspend [2021-11-19 15:02:19,162 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-19 15:02:19,162 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-19 15:02:19,163 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-19 15:02:19,163 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-19 15:02:19,163 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-19 15:02:19,163 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-19 15:02:19,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 15:02:19,163 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-19 15:02:19,163 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-19 15:02:19,164 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-19 15:02:19,164 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-19 15:02:19,164 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-19 15:02:19,164 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-19 15:02:19,164 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_link_test [2021-11-19 15:02:19,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_link_test [2021-11-19 15:02:19,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 15:02:19,164 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_vlan_rx_add_vid [2021-11-19 15:02:19,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_vlan_rx_add_vid [2021-11-19 15:02:19,165 INFO L130 BoogieDeclarations]: Found specification of procedure map_vector_to_rxq [2021-11-19 15:02:19,165 INFO L138 BoogieDeclarations]: Found implementation of procedure map_vector_to_rxq [2021-11-19 15:02:19,165 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~~bool~0~TO~~s32~0 [2021-11-19 15:02:19,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~~bool~0~TO~~s32~0 [2021-11-19 15:02:19,165 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~s32~0 [2021-11-19 15:02:19,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~s32~0 [2021-11-19 15:02:19,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 15:02:19,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 15:02:19,166 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2021-11-19 15:02:19,166 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2021-11-19 15:02:19,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 15:02:19,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 15:02:19,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 15:02:19,166 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_get_mac_addr_vf [2021-11-19 15:02:19,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_get_mac_addr_vf [2021-11-19 15:02:19,167 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_configure [2021-11-19 15:02:19,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_configure [2021-11-19 15:02:19,167 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_free_all_tx_resources [2021-11-19 15:02:19,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_free_all_tx_resources [2021-11-19 15:02:19,167 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-19 15:02:19,167 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-19 15:02:19,168 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-19 15:02:19,168 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-19 15:02:19,168 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_get_queues [2021-11-19 15:02:19,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_get_queues [2021-11-19 15:02:19,168 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-19 15:02:19,168 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-19 15:02:19,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-19 15:02:19,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-19 15:02:19,169 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_write_msg_read_ack [2021-11-19 15:02:19,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_write_msg_read_ack [2021-11-19 15:02:19,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 15:02:19,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 15:02:19,169 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-19 15:02:19,169 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-19 15:02:19,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-19 15:02:19,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-19 15:02:19,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-19 15:02:19,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-19 15:02:19,170 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-11-19 15:02:19,170 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-11-19 15:02:19,170 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_open [2021-11-19 15:02:19,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_open [2021-11-19 15:02:19,171 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~u16~0~TO~~s32~0 [2021-11-19 15:02:19,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~u16~0~TO~~s32~0 [2021-11-19 15:02:19,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_93 [2021-11-19 15:02:19,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_93 [2021-11-19 15:02:19,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_ixgbevf_exit_module_17_2 [2021-11-19 15:02:19,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_ixgbevf_exit_module_17_2 [2021-11-19 15:02:19,171 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_check_mac_link_vf [2021-11-19 15:02:19,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_check_mac_link_vf [2021-11-19 15:02:19,172 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_clear_interrupt_scheme [2021-11-19 15:02:19,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_clear_interrupt_scheme [2021-11-19 15:02:19,172 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_get_regs_len [2021-11-19 15:02:19,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_get_regs_len [2021-11-19 15:02:19,172 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-19 15:02:19,172 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-19 15:02:19,173 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-19 15:02:19,173 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-19 15:02:19,173 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-19 15:02:19,173 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-19 15:02:19,173 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-19 15:02:19,173 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-19 15:02:19,173 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_update_mc_addr_list_vf [2021-11-19 15:02:19,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_update_mc_addr_list_vf [2021-11-19 15:02:19,174 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_free_rx_resources [2021-11-19 15:02:19,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_free_rx_resources [2021-11-19 15:02:19,174 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-19 15:02:19,174 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-19 15:02:19,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_77 [2021-11-19 15:02:19,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_77 [2021-11-19 15:02:19,175 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-11-19 15:02:19,175 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-11-19 15:02:19,175 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-19 15:02:19,175 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-19 15:02:19,175 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_init_mbx_params_vf [2021-11-19 15:02:19,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_init_mbx_params_vf [2021-11-19 15:02:19,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 15:02:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2021-11-19 15:02:19,176 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2021-11-19 15:02:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 15:02:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_free_q_vectors [2021-11-19 15:02:19,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_free_q_vectors [2021-11-19 15:02:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 15:02:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 15:02:19,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 15:02:19,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 15:02:19,177 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_disable_rx_queue [2021-11-19 15:02:19,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_disable_rx_queue [2021-11-19 15:02:19,177 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_reset [2021-11-19 15:02:19,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_reset [2021-11-19 15:02:19,177 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_close [2021-11-19 15:02:19,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_close [2021-11-19 15:02:19,178 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device_mem [2021-11-19 15:02:19,178 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device_mem [2021-11-19 15:02:19,178 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_retry_bh [2021-11-19 15:02:19,178 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_retry_bh [2021-11-19 15:02:19,178 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-19 15:02:19,178 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-19 15:02:19,178 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2021-11-19 15:02:19,178 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2021-11-19 15:02:19,179 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-19 15:02:19,179 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-19 15:02:19,179 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2021-11-19 15:02:19,179 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2021-11-19 15:02:19,179 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2021-11-19 15:02:19,179 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2021-11-19 15:02:19,179 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-19 15:02:19,180 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-19 15:02:19,180 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-11-19 15:02:19,180 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-11-19 15:02:19,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 15:02:19,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 15:02:19,180 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-19 15:02:19,180 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-19 15:02:19,180 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_clean_rx_ring [2021-11-19 15:02:19,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_clean_rx_ring [2021-11-19 15:02:19,181 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_stop_hw_vf [2021-11-19 15:02:19,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_stop_hw_vf [2021-11-19 15:02:19,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_6 [2021-11-19 15:02:19,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_6 [2021-11-19 15:02:19,181 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_reset_hw_vf [2021-11-19 15:02:19,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_reset_hw_vf [2021-11-19 15:02:19,182 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-11-19 15:02:19,182 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-11-19 15:02:19,182 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-19 15:02:19,182 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-19 15:02:19,182 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_unmap_and_free_tx_resource [2021-11-19 15:02:19,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_unmap_and_free_tx_resource [2021-11-19 15:02:19,182 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2021-11-19 15:02:19,182 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2021-11-19 15:02:19,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-19 15:02:19,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-19 15:02:19,183 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_trap [2021-11-19 15:02:19,183 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_trap [2021-11-19 15:02:20,662 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 15:02:20,669 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 15:02:21,003 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 15:08:38,510 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-19 15:08:38,647 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 15:08:38,692 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 15:08:38,692 INFO L301 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-19 15:08:38,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:08:38 BoogieIcfgContainer [2021-11-19 15:08:38,702 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 15:08:38,705 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 15:08:38,705 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 15:08:38,709 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 15:08:38,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 03:02:09" (1/3) ... [2021-11-19 15:08:38,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64d3f0ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:08:38, skipping insertion in model container [2021-11-19 15:08:38,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:02:17" (2/3) ... [2021-11-19 15:08:38,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64d3f0ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:08:38, skipping insertion in model container [2021-11-19 15:08:38,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:08:38" (3/3) ... [2021-11-19 15:08:38,713 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i [2021-11-19 15:08:38,719 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 15:08:38,720 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-19 15:08:38,801 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 15:08:38,807 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 15:08:38,808 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-19 15:08:38,906 INFO L276 IsEmpty]: Start isEmpty. Operand has 3718 states, 2595 states have (on average 1.2709055876685935) internal successors, (3298), 2639 states have internal predecessors, (3298), 915 states have call successors, (915), 206 states have call predecessors, (915), 205 states have return successors, (908), 904 states have call predecessors, (908), 908 states have call successors, (908) [2021-11-19 15:08:38,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2021-11-19 15:08:38,941 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:08:38,942 INFO L514 BasicCegarLoop]: trace histogram [30, 30, 29, 29, 29, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:08:38,943 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 15:08:38,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:08:38,949 INFO L85 PathProgramCache]: Analyzing trace with hash 2012363121, now seen corresponding path program 1 times [2021-11-19 15:08:38,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:08:38,971 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1659285652] [2021-11-19 15:08:38,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:08:38,972 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:08:38,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:08:38,976 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:08:39,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 15:08:45,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:08:45,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 2503 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:08:45,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:08:47,161 INFO L134 CoverageAnalysis]: Checked inductivity of 3741 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 3654 trivial. 0 not checked. [2021-11-19 15:08:47,161 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:08:48,561 INFO L134 CoverageAnalysis]: Checked inductivity of 3741 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3741 trivial. 0 not checked. [2021-11-19 15:08:48,562 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:08:48,563 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1659285652] [2021-11-19 15:08:48,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1659285652] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:08:48,564 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:08:48,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 15:08:48,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120231341] [2021-11-19 15:08:48,568 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:08:48,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:08:48,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:08:48,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:08:48,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:08:48,626 INFO L87 Difference]: Start difference. First operand has 3718 states, 2595 states have (on average 1.2709055876685935) internal successors, (3298), 2639 states have internal predecessors, (3298), 915 states have call successors, (915), 206 states have call predecessors, (915), 205 states have return successors, (908), 904 states have call predecessors, (908), 908 states have call successors, (908) Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 4 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) [2021-11-19 15:08:51,372 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.73s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:09:19,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:09:19,065 INFO L93 Difference]: Finished difference Result 14445 states and 20215 transitions. [2021-11-19 15:09:19,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:09:19,068 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 4 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) Word has length 347 [2021-11-19 15:09:19,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:09:19,221 INFO L225 Difference]: With dead ends: 14445 [2021-11-19 15:09:19,221 INFO L226 Difference]: Without dead ends: 10771 [2021-11-19 15:09:19,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 692 GetRequests, 690 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:09:19,282 INFO L933 BasicCegarLoop]: 6793 mSDtfsCounter, 9854 mSDsluCounter, 12922 mSDsCounter, 0 mSdLazyCounter, 1854 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9854 SdHoareTripleChecker+Valid, 19715 SdHoareTripleChecker+Invalid, 1875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1854 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.4s IncrementalHoareTripleChecker+Time [2021-11-19 15:09:19,283 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9854 Valid, 19715 Invalid, 1875 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [20 Valid, 1854 Invalid, 1 Unknown, 0 Unchecked, 29.4s Time] [2021-11-19 15:09:19,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10771 states. [2021-11-19 15:09:20,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10771 to 10741. [2021-11-19 15:09:20,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10741 states, 7536 states have (on average 1.2620753715498938) internal successors, (9511), 7664 states have internal predecessors, (9511), 2594 states have call successors, (2594), 609 states have call predecessors, (2594), 608 states have return successors, (2590), 2578 states have call predecessors, (2590), 2590 states have call successors, (2590) [2021-11-19 15:09:20,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10741 states to 10741 states and 14695 transitions. [2021-11-19 15:09:20,373 INFO L78 Accepts]: Start accepts. Automaton has 10741 states and 14695 transitions. Word has length 347 [2021-11-19 15:09:20,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:09:20,381 INFO L470 AbstractCegarLoop]: Abstraction has 10741 states and 14695 transitions. [2021-11-19 15:09:20,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 4 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) [2021-11-19 15:09:20,383 INFO L276 IsEmpty]: Start isEmpty. Operand 10741 states and 14695 transitions. [2021-11-19 15:09:20,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2021-11-19 15:09:20,408 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:09:20,409 INFO L514 BasicCegarLoop]: trace histogram [30, 30, 29, 29, 29, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:09:20,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 15:09:20,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:09:20,626 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 15:09:20,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:09:20,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1248262081, now seen corresponding path program 1 times [2021-11-19 15:09:20,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:09:20,638 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1782611413] [2021-11-19 15:09:20,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:09:20,639 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:09:20,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:09:20,640 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:09:20,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 15:09:27,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:09:27,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 2566 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:09:27,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:09:29,021 INFO L134 CoverageAnalysis]: Checked inductivity of 3741 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 3654 trivial. 0 not checked. [2021-11-19 15:09:29,021 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:09:30,481 INFO L134 CoverageAnalysis]: Checked inductivity of 3741 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3741 trivial. 0 not checked. [2021-11-19 15:09:30,481 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:09:30,481 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1782611413] [2021-11-19 15:09:30,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1782611413] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:09:30,482 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:09:30,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 15:09:30,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145898460] [2021-11-19 15:09:30,483 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:09:30,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:09:30,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:09:30,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:09:30,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:09:30,487 INFO L87 Difference]: Start difference. First operand 10741 states and 14695 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 4 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) [2021-11-19 15:09:33,155 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.66s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:09:58,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:09:58,688 INFO L93 Difference]: Finished difference Result 32349 states and 44210 transitions. [2021-11-19 15:09:58,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:09:58,689 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 4 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) Word has length 359 [2021-11-19 15:09:58,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:09:58,933 INFO L225 Difference]: With dead ends: 32349 [2021-11-19 15:09:58,933 INFO L226 Difference]: Without dead ends: 21671 [2021-11-19 15:09:59,014 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 716 GetRequests, 714 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:09:59,015 INFO L933 BasicCegarLoop]: 7263 mSDtfsCounter, 8749 mSDsluCounter, 9278 mSDsCounter, 0 mSdLazyCounter, 1895 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8749 SdHoareTripleChecker+Valid, 16541 SdHoareTripleChecker+Invalid, 1941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1895 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.3s IncrementalHoareTripleChecker+Time [2021-11-19 15:09:59,016 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8749 Valid, 16541 Invalid, 1941 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [45 Valid, 1895 Invalid, 1 Unknown, 0 Unchecked, 27.3s Time] [2021-11-19 15:09:59,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21671 states. [2021-11-19 15:10:00,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21671 to 21613. [2021-11-19 15:10:00,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21613 states, 15337 states have (on average 1.264849709851992) internal successors, (19399), 15584 states have internal predecessors, (19399), 5040 states have call successors, (5040), 1236 states have call predecessors, (5040), 1233 states have return successors, (5036), 5006 states have call predecessors, (5036), 5036 states have call successors, (5036) [2021-11-19 15:10:00,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21613 states to 21613 states and 29475 transitions. [2021-11-19 15:10:00,584 INFO L78 Accepts]: Start accepts. Automaton has 21613 states and 29475 transitions. Word has length 359 [2021-11-19 15:10:00,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:10:00,586 INFO L470 AbstractCegarLoop]: Abstraction has 21613 states and 29475 transitions. [2021-11-19 15:10:00,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 4 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) [2021-11-19 15:10:00,587 INFO L276 IsEmpty]: Start isEmpty. Operand 21613 states and 29475 transitions. [2021-11-19 15:10:00,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2021-11-19 15:10:00,600 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:10:00,601 INFO L514 BasicCegarLoop]: trace histogram [30, 30, 29, 29, 29, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:10:00,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 15:10:00,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:10:00,816 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)] === [2021-11-19 15:10:00,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:10:00,817 INFO L85 PathProgramCache]: Analyzing trace with hash -895144997, now seen corresponding path program 1 times [2021-11-19 15:10:00,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:10:00,820 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [216068888] [2021-11-19 15:10:00,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:10:00,821 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:10:00,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:10:00,822 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:10:00,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 15:10:05,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:10:06,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 2561 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:10:06,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:10:07,511 INFO L134 CoverageAnalysis]: Checked inductivity of 3741 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 3654 trivial. 0 not checked. [2021-11-19 15:10:07,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:10:08,747 INFO L134 CoverageAnalysis]: Checked inductivity of 3741 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3741 trivial. 0 not checked. [2021-11-19 15:10:08,748 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:10:08,748 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [216068888] [2021-11-19 15:10:08,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [216068888] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:10:08,751 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:10:08,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 15:10:08,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951772360] [2021-11-19 15:10:08,752 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:10:08,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:10:08,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:10:08,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:10:08,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:10:08,754 INFO L87 Difference]: Start difference. First operand 21613 states and 29475 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2021-11-19 15:10:11,297 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.54s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:10:13,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:10:13,674 INFO L93 Difference]: Finished difference Result 51939 states and 70546 transitions. [2021-11-19 15:10:13,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:10:13,675 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 365 [2021-11-19 15:10:13,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:10:13,882 INFO L225 Difference]: With dead ends: 51939 [2021-11-19 15:10:13,883 INFO L226 Difference]: Without dead ends: 30389 [2021-11-19 15:10:13,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 728 GetRequests, 727 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:10:13,997 INFO L933 BasicCegarLoop]: 5700 mSDtfsCounter, 3552 mSDsluCounter, 4942 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3552 SdHoareTripleChecker+Valid, 10642 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-11-19 15:10:13,997 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3552 Valid, 10642 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 93 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2021-11-19 15:10:14,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30389 states. [2021-11-19 15:10:15,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30389 to 30356. [2021-11-19 15:10:15,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30356 states, 21451 states have (on average 1.260966854692089) internal successors, (27049), 21787 states have internal predecessors, (27049), 7018 states have call successors, (7018), 1889 states have call predecessors, (7018), 1884 states have return successors, (7016), 6957 states have call predecessors, (7016), 7014 states have call successors, (7016) [2021-11-19 15:10:16,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30356 states to 30356 states and 41083 transitions. [2021-11-19 15:10:16,090 INFO L78 Accepts]: Start accepts. Automaton has 30356 states and 41083 transitions. Word has length 365 [2021-11-19 15:10:16,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:10:16,096 INFO L470 AbstractCegarLoop]: Abstraction has 30356 states and 41083 transitions. [2021-11-19 15:10:16,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2021-11-19 15:10:16,096 INFO L276 IsEmpty]: Start isEmpty. Operand 30356 states and 41083 transitions. [2021-11-19 15:10:16,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2021-11-19 15:10:16,114 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:10:16,115 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 29, 29, 29, 29, 29, 29, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:10:16,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 15:10:16,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:10:16,342 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 15:10:16,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:10:16,342 INFO L85 PathProgramCache]: Analyzing trace with hash -101607216, now seen corresponding path program 1 times [2021-11-19 15:10:16,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:10:16,347 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [319969717] [2021-11-19 15:10:16,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:10:16,348 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:10:16,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:10:16,350 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:10:16,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 15:10:21,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:10:22,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 2628 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 15:10:22,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:10:30,609 INFO L134 CoverageAnalysis]: Checked inductivity of 4054 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4054 trivial. 0 not checked. [2021-11-19 15:10:30,609 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:10:33,839 INFO L134 CoverageAnalysis]: Checked inductivity of 4054 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4054 trivial. 0 not checked. [2021-11-19 15:10:33,840 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:10:33,840 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [319969717] [2021-11-19 15:10:33,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [319969717] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:10:33,840 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:10:33,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-19 15:10:33,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990771201] [2021-11-19 15:10:33,841 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:10:33,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 15:10:33,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:10:33,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 15:10:33,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 15:10:33,843 INFO L87 Difference]: Start difference. First operand 30356 states and 41083 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (79), 4 states have call predecessors, (79), 2 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76) [2021-11-19 15:10:36,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:10:36,230 INFO L93 Difference]: Finished difference Result 30644 states and 41379 transitions. [2021-11-19 15:10:36,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 15:10:36,231 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (79), 4 states have call predecessors, (79), 2 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76) Word has length 403 [2021-11-19 15:10:36,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:10:36,427 INFO L225 Difference]: With dead ends: 30644 [2021-11-19 15:10:36,428 INFO L226 Difference]: Without dead ends: 30642 [2021-11-19 15:10:36,454 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 807 GetRequests, 799 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-19 15:10:36,457 INFO L933 BasicCegarLoop]: 5044 mSDtfsCounter, 4870 mSDsluCounter, 20185 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4885 SdHoareTripleChecker+Valid, 25229 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-19 15:10:36,459 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4885 Valid, 25229 Invalid, 47 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-19 15:10:36,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30642 states. [2021-11-19 15:10:38,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30642 to 30640. [2021-11-19 15:10:38,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30640 states, 21634 states have (on average 1.2601460663769992) internal successors, (27262), 21990 states have internal predecessors, (27262), 7058 states have call successors, (7058), 1950 states have call predecessors, (7058), 1945 states have return successors, (7056), 6997 states have call predecessors, (7056), 7054 states have call successors, (7056) [2021-11-19 15:10:38,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30640 states to 30640 states and 41376 transitions. [2021-11-19 15:10:38,441 INFO L78 Accepts]: Start accepts. Automaton has 30640 states and 41376 transitions. Word has length 403 [2021-11-19 15:10:38,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:10:38,442 INFO L470 AbstractCegarLoop]: Abstraction has 30640 states and 41376 transitions. [2021-11-19 15:10:38,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (79), 4 states have call predecessors, (79), 2 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76) [2021-11-19 15:10:38,709 INFO L276 IsEmpty]: Start isEmpty. Operand 30640 states and 41376 transitions. [2021-11-19 15:10:38,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2021-11-19 15:10:38,749 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:10:38,750 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 29, 29, 29, 29, 29, 29, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:10:38,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 15:10:38,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:10:38,951 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)] === [2021-11-19 15:10:38,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:10:38,952 INFO L85 PathProgramCache]: Analyzing trace with hash 172412564, now seen corresponding path program 1 times [2021-11-19 15:10:38,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:10:38,957 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [208099361] [2021-11-19 15:10:38,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:10:38,958 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:10:38,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:10:38,959 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:10:39,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 15:10:44,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:10:44,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 2635 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 15:10:44,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:10:53,568 INFO L134 CoverageAnalysis]: Checked inductivity of 4056 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4054 trivial. 0 not checked. [2021-11-19 15:10:53,568 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:10:56,953 INFO L134 CoverageAnalysis]: Checked inductivity of 4056 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4054 trivial. 0 not checked. [2021-11-19 15:10:56,954 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:10:56,954 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [208099361] [2021-11-19 15:10:56,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [208099361] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 15:10:56,954 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 15:10:56,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 15:10:56,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025454219] [2021-11-19 15:10:56,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:10:56,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 15:10:56,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:10:56,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 15:10:56,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 15:10:56,957 INFO L87 Difference]: Start difference. First operand 30640 states and 41376 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-19 15:10:58,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:10:58,691 INFO L93 Difference]: Finished difference Result 30646 states and 41381 transitions. [2021-11-19 15:10:58,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 15:10:58,692 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 408 [2021-11-19 15:10:58,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:10:58,868 INFO L225 Difference]: With dead ends: 30646 [2021-11-19 15:10:58,868 INFO L226 Difference]: Without dead ends: 30644 [2021-11-19 15:10:58,886 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 817 GetRequests, 809 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 15:10:58,887 INFO L933 BasicCegarLoop]: 5038 mSDtfsCounter, 4931 mSDsluCounter, 10053 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4945 SdHoareTripleChecker+Valid, 15091 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 15:10:58,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4945 Valid, 15091 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 15:10:58,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30644 states. [2021-11-19 15:11:00,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30644 to 30644. [2021-11-19 15:11:00,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30644 states, 21637 states have (on average 1.260109996764801) internal successors, (27265), 21993 states have internal predecessors, (27265), 7058 states have call successors, (7058), 1951 states have call predecessors, (7058), 1946 states have return successors, (7056), 6997 states have call predecessors, (7056), 7054 states have call successors, (7056) [2021-11-19 15:11:00,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30644 states to 30644 states and 41379 transitions. [2021-11-19 15:11:00,857 INFO L78 Accepts]: Start accepts. Automaton has 30644 states and 41379 transitions. Word has length 408 [2021-11-19 15:11:00,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:11:00,858 INFO L470 AbstractCegarLoop]: Abstraction has 30644 states and 41379 transitions. [2021-11-19 15:11:00,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-19 15:11:00,859 INFO L276 IsEmpty]: Start isEmpty. Operand 30644 states and 41379 transitions. [2021-11-19 15:11:00,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2021-11-19 15:11:00,874 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:11:00,874 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 29, 29, 29, 29, 29, 29, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:11:00,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 15:11:01,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:11:01,102 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)] === [2021-11-19 15:11:01,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:11:01,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1501713648, now seen corresponding path program 1 times [2021-11-19 15:11:01,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:11:01,107 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1032053632] [2021-11-19 15:11:01,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:11:01,107 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:11:01,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:11:01,108 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:11:01,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 15:11:06,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:11:06,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 2642 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 15:11:06,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:11:15,701 INFO L134 CoverageAnalysis]: Checked inductivity of 4062 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4058 trivial. 0 not checked. [2021-11-19 15:11:15,702 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:11:18,869 INFO L134 CoverageAnalysis]: Checked inductivity of 4062 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4058 trivial. 0 not checked. [2021-11-19 15:11:18,870 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:11:18,870 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1032053632] [2021-11-19 15:11:18,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1032053632] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 15:11:18,870 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 15:11:18,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 15:11:18,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529223701] [2021-11-19 15:11:18,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:11:18,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 15:11:18,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:11:18,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 15:11:18,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 15:11:18,873 INFO L87 Difference]: Start difference. First operand 30644 states and 41379 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-19 15:11:20,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:11:20,538 INFO L93 Difference]: Finished difference Result 30650 states and 41384 transitions. [2021-11-19 15:11:20,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 15:11:20,540 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 413 [2021-11-19 15:11:20,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:11:20,680 INFO L225 Difference]: With dead ends: 30650 [2021-11-19 15:11:20,680 INFO L226 Difference]: Without dead ends: 30648 [2021-11-19 15:11:20,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 827 GetRequests, 819 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 15:11:20,692 INFO L933 BasicCegarLoop]: 5038 mSDtfsCounter, 4931 mSDsluCounter, 10053 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4944 SdHoareTripleChecker+Valid, 15091 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 15:11:20,693 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4944 Valid, 15091 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 15:11:20,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30648 states. [2021-11-19 15:11:22,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30648 to 30648. [2021-11-19 15:11:22,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30648 states, 21640 states have (on average 1.2600739371534195) internal successors, (27268), 21996 states have internal predecessors, (27268), 7058 states have call successors, (7058), 1952 states have call predecessors, (7058), 1947 states have return successors, (7056), 6997 states have call predecessors, (7056), 7054 states have call successors, (7056) [2021-11-19 15:11:22,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30648 states to 30648 states and 41382 transitions. [2021-11-19 15:11:22,617 INFO L78 Accepts]: Start accepts. Automaton has 30648 states and 41382 transitions. Word has length 413 [2021-11-19 15:11:22,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:11:22,619 INFO L470 AbstractCegarLoop]: Abstraction has 30648 states and 41382 transitions. [2021-11-19 15:11:22,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-19 15:11:22,619 INFO L276 IsEmpty]: Start isEmpty. Operand 30648 states and 41382 transitions. [2021-11-19 15:11:22,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2021-11-19 15:11:22,639 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:11:22,640 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 29, 29, 29, 29, 29, 29, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:11:22,762 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 15:11:22,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:11:22,854 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)] === [2021-11-19 15:11:22,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:11:22,855 INFO L85 PathProgramCache]: Analyzing trace with hash -580206637, now seen corresponding path program 1 times [2021-11-19 15:11:22,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:11:22,861 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1817002334] [2021-11-19 15:11:22,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:11:22,861 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:11:22,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:11:22,863 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:11:22,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 15:11:28,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:11:28,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 2697 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:11:28,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:11:30,326 INFO L134 CoverageAnalysis]: Checked inductivity of 4084 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 3958 trivial. 0 not checked. [2021-11-19 15:11:30,326 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:11:31,419 INFO L134 CoverageAnalysis]: Checked inductivity of 4084 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 4072 trivial. 0 not checked. [2021-11-19 15:11:31,420 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:11:31,420 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1817002334] [2021-11-19 15:11:31,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1817002334] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:11:31,420 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:11:31,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 15:11:31,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108164321] [2021-11-19 15:11:31,421 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:11:31,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:11:31,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:11:31,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:11:31,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:11:31,423 INFO L87 Difference]: Start difference. First operand 30648 states and 41382 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 4 states have call successors, (53), 3 states have call predecessors, (53), 3 states have return successors, (51), 4 states have call predecessors, (51), 4 states have call successors, (51) [2021-11-19 15:11:33,976 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.55s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:11:59,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:11:59,655 INFO L93 Difference]: Finished difference Result 90017 states and 121527 transitions. [2021-11-19 15:11:59,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:11:59,657 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 4 states have call successors, (53), 3 states have call predecessors, (53), 3 states have return successors, (51), 4 states have call predecessors, (51), 4 states have call successors, (51) Word has length 430 [2021-11-19 15:11:59,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:12:00,245 INFO L225 Difference]: With dead ends: 90017 [2021-11-19 15:12:00,245 INFO L226 Difference]: Without dead ends: 60162 [2021-11-19 15:12:00,350 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 858 GetRequests, 856 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:12:00,351 INFO L933 BasicCegarLoop]: 7577 mSDtfsCounter, 9835 mSDsluCounter, 8941 mSDsCounter, 0 mSdLazyCounter, 1842 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9835 SdHoareTripleChecker+Valid, 16518 SdHoareTripleChecker+Invalid, 1856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1842 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.9s IncrementalHoareTripleChecker+Time [2021-11-19 15:12:00,351 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9835 Valid, 16518 Invalid, 1856 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 1842 Invalid, 1 Unknown, 0 Unchecked, 24.9s Time] [2021-11-19 15:12:00,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60162 states. [2021-11-19 15:12:03,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60162 to 60120. [2021-11-19 15:12:03,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60120 states, 42468 states have (on average 1.2593482151266837) internal successors, (53482), 43154 states have internal predecessors, (53482), 13822 states have call successors, (13822), 3836 states have call predecessors, (13822), 3827 states have return successors, (13822), 13723 states have call predecessors, (13822), 13818 states have call successors, (13822) [2021-11-19 15:12:04,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60120 states to 60120 states and 81126 transitions. [2021-11-19 15:12:04,199 INFO L78 Accepts]: Start accepts. Automaton has 60120 states and 81126 transitions. Word has length 430 [2021-11-19 15:12:04,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:12:04,201 INFO L470 AbstractCegarLoop]: Abstraction has 60120 states and 81126 transitions. [2021-11-19 15:12:04,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 4 states have call successors, (53), 3 states have call predecessors, (53), 3 states have return successors, (51), 4 states have call predecessors, (51), 4 states have call successors, (51) [2021-11-19 15:12:04,201 INFO L276 IsEmpty]: Start isEmpty. Operand 60120 states and 81126 transitions. [2021-11-19 15:12:04,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2021-11-19 15:12:04,222 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:12:04,222 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 29, 29, 29, 29, 29, 29, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:12:04,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 15:12:04,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:12:04,438 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)] === [2021-11-19 15:12:04,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:12:04,438 INFO L85 PathProgramCache]: Analyzing trace with hash 2045137876, now seen corresponding path program 1 times [2021-11-19 15:12:04,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:12:04,761 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1602106017] [2021-11-19 15:12:04,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:12:04,762 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:12:04,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:12:04,798 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:12:04,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 15:12:10,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:12:10,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 2649 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 15:12:10,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:12:19,514 INFO L134 CoverageAnalysis]: Checked inductivity of 4072 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4066 trivial. 0 not checked. [2021-11-19 15:12:19,515 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:12:22,706 INFO L134 CoverageAnalysis]: Checked inductivity of 4072 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4066 trivial. 0 not checked. [2021-11-19 15:12:22,707 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:12:22,707 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1602106017] [2021-11-19 15:12:22,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1602106017] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 15:12:22,708 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 15:12:22,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 15:12:22,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120756035] [2021-11-19 15:12:22,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:12:22,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 15:12:22,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:12:22,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 15:12:22,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 15:12:22,711 INFO L87 Difference]: Start difference. First operand 60120 states and 81126 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-11-19 15:12:25,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:12:25,787 INFO L93 Difference]: Finished difference Result 60126 states and 81131 transitions. [2021-11-19 15:12:25,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 15:12:25,788 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 418 [2021-11-19 15:12:25,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:12:26,262 INFO L225 Difference]: With dead ends: 60126 [2021-11-19 15:12:26,262 INFO L226 Difference]: Without dead ends: 60124 [2021-11-19 15:12:26,292 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 837 GetRequests, 829 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 15:12:26,293 INFO L933 BasicCegarLoop]: 5038 mSDtfsCounter, 4931 mSDsluCounter, 10053 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4943 SdHoareTripleChecker+Valid, 15091 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 15:12:26,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4943 Valid, 15091 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 15:12:26,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60124 states. [2021-11-19 15:12:29,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60124 to 60124. [2021-11-19 15:12:30,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60124 states, 42471 states have (on average 1.2593298956935322) internal successors, (53485), 43157 states have internal predecessors, (53485), 13822 states have call successors, (13822), 3837 states have call predecessors, (13822), 3828 states have return successors, (13822), 13723 states have call predecessors, (13822), 13818 states have call successors, (13822) [2021-11-19 15:12:30,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60124 states to 60124 states and 81129 transitions. [2021-11-19 15:12:30,505 INFO L78 Accepts]: Start accepts. Automaton has 60124 states and 81129 transitions. Word has length 418 [2021-11-19 15:12:30,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:12:30,507 INFO L470 AbstractCegarLoop]: Abstraction has 60124 states and 81129 transitions. [2021-11-19 15:12:30,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-11-19 15:12:30,507 INFO L276 IsEmpty]: Start isEmpty. Operand 60124 states and 81129 transitions. [2021-11-19 15:12:30,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2021-11-19 15:12:30,528 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:12:30,529 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 29, 29, 29, 29, 29, 29, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:12:30,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-19 15:12:30,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:12:30,754 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)] === [2021-11-19 15:12:30,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:12:30,755 INFO L85 PathProgramCache]: Analyzing trace with hash -2076598960, now seen corresponding path program 1 times [2021-11-19 15:12:30,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:12:30,760 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [864569953] [2021-11-19 15:12:30,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:12:30,761 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:12:30,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:12:30,763 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:12:30,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 15:12:35,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:12:36,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 2656 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 15:12:36,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:12:45,272 INFO L134 CoverageAnalysis]: Checked inductivity of 4086 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4078 trivial. 0 not checked. [2021-11-19 15:12:45,273 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:12:48,586 INFO L134 CoverageAnalysis]: Checked inductivity of 4086 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4078 trivial. 0 not checked. [2021-11-19 15:12:48,587 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:12:48,587 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [864569953] [2021-11-19 15:12:48,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [864569953] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 15:12:48,587 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 15:12:48,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 15:12:48,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945838984] [2021-11-19 15:12:48,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:12:48,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 15:12:48,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:12:48,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 15:12:48,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 15:12:48,591 INFO L87 Difference]: Start difference. First operand 60124 states and 81129 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-19 15:12:52,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:12:52,408 INFO L93 Difference]: Finished difference Result 60130 states and 81134 transitions. [2021-11-19 15:12:52,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 15:12:52,409 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 423 [2021-11-19 15:12:52,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:12:52,631 INFO L225 Difference]: With dead ends: 60130 [2021-11-19 15:12:52,631 INFO L226 Difference]: Without dead ends: 60128 [2021-11-19 15:12:52,652 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 847 GetRequests, 839 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 15:12:52,653 INFO L933 BasicCegarLoop]: 5038 mSDtfsCounter, 4931 mSDsluCounter, 10053 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4942 SdHoareTripleChecker+Valid, 15091 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 15:12:52,654 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4942 Valid, 15091 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 15:12:52,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60128 states. [2021-11-19 15:12:56,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60128 to 60128. [2021-11-19 15:12:56,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60128 states, 42474 states have (on average 1.2593115788482365) internal successors, (53488), 43160 states have internal predecessors, (53488), 13822 states have call successors, (13822), 3838 states have call predecessors, (13822), 3829 states have return successors, (13822), 13723 states have call predecessors, (13822), 13818 states have call successors, (13822) [2021-11-19 15:12:56,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60128 states to 60128 states and 81132 transitions. [2021-11-19 15:12:56,618 INFO L78 Accepts]: Start accepts. Automaton has 60128 states and 81132 transitions. Word has length 423 [2021-11-19 15:12:56,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:12:56,619 INFO L470 AbstractCegarLoop]: Abstraction has 60128 states and 81132 transitions. [2021-11-19 15:12:56,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-19 15:12:56,620 INFO L276 IsEmpty]: Start isEmpty. Operand 60128 states and 81132 transitions. [2021-11-19 15:12:56,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2021-11-19 15:12:56,654 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:12:56,655 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 29, 29, 29, 29, 29, 29, 6, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:12:56,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-19 15:12:56,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:12:56,882 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 15:12:56,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:12:56,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1595449367, now seen corresponding path program 1 times [2021-11-19 15:12:56,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:12:56,888 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [727764266] [2021-11-19 15:12:56,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:12:56,889 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:12:56,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:12:56,890 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:12:56,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-19 15:13:02,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:13:02,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 2710 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:13:02,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:13:04,066 INFO L134 CoverageAnalysis]: Checked inductivity of 4115 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 3990 trivial. 0 not checked. [2021-11-19 15:13:04,066 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:13:05,181 INFO L134 CoverageAnalysis]: Checked inductivity of 4115 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 4100 trivial. 0 not checked. [2021-11-19 15:13:05,181 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:13:05,181 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [727764266] [2021-11-19 15:13:05,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [727764266] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:13:05,181 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:13:05,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 15:13:05,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103698670] [2021-11-19 15:13:05,182 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:13:05,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:13:05,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:13:05,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:13:05,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:13:05,184 INFO L87 Difference]: Start difference. First operand 60128 states and 81132 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 4 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (55), 4 states have call predecessors, (55), 4 states have call successors, (55) [2021-11-19 15:13:07,796 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.61s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:13:34,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:13:34,280 INFO L93 Difference]: Finished difference Result 134259 states and 181142 transitions. [2021-11-19 15:13:34,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:13:34,282 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 4 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (55), 4 states have call predecessors, (55), 4 states have call successors, (55) Word has length 439 [2021-11-19 15:13:34,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:13:34,775 INFO L225 Difference]: With dead ends: 134259 [2021-11-19 15:13:34,776 INFO L226 Difference]: Without dead ends: 74924 [2021-11-19 15:13:34,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 876 GetRequests, 874 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:13:34,946 INFO L933 BasicCegarLoop]: 10739 mSDtfsCounter, 9784 mSDsluCounter, 9108 mSDsCounter, 0 mSdLazyCounter, 1785 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9784 SdHoareTripleChecker+Valid, 19847 SdHoareTripleChecker+Invalid, 1796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1785 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:13:34,946 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9784 Valid, 19847 Invalid, 1796 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 1785 Invalid, 1 Unknown, 0 Unchecked, 24.1s Time] [2021-11-19 15:13:35,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74924 states. [2021-11-19 15:13:39,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74924 to 74832. [2021-11-19 15:13:39,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74832 states, 52860 states have (on average 1.2586265607264473) internal successors, (66531), 53711 states have internal predecessors, (66531), 17201 states have call successors, (17201), 4777 states have call predecessors, (17201), 4768 states have return successors, (17202), 17085 states have call predecessors, (17202), 17197 states have call successors, (17202) [2021-11-19 15:13:40,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74832 states to 74832 states and 100934 transitions. [2021-11-19 15:13:40,232 INFO L78 Accepts]: Start accepts. Automaton has 74832 states and 100934 transitions. Word has length 439 [2021-11-19 15:13:40,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:13:40,233 INFO L470 AbstractCegarLoop]: Abstraction has 74832 states and 100934 transitions. [2021-11-19 15:13:40,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 4 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (55), 4 states have call predecessors, (55), 4 states have call successors, (55) [2021-11-19 15:13:40,234 INFO L276 IsEmpty]: Start isEmpty. Operand 74832 states and 100934 transitions. [2021-11-19 15:13:40,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2021-11-19 15:13:40,246 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:13:40,246 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 29, 29, 29, 29, 29, 29, 6, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:13:40,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-19 15:13:40,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:13:40,448 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 15:13:40,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:13:40,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1531050260, now seen corresponding path program 1 times [2021-11-19 15:13:40,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:13:40,454 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [288277069] [2021-11-19 15:13:40,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:13:40,455 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:13:40,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:13:40,476 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:13:40,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbeb0b6c-877d-463c-99d8-98a4321be8c6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-19 15:13:45,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:13:46,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 2663 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 15:13:46,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:13:55,220 INFO L134 CoverageAnalysis]: Checked inductivity of 4104 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4094 trivial. 0 not checked. [2021-11-19 15:13:55,220 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:13:58,748 INFO L134 CoverageAnalysis]: Checked inductivity of 4104 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 4094 trivial. 0 not checked. [2021-11-19 15:13:58,749 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:13:58,749 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [288277069] [2021-11-19 15:13:58,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [288277069] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 15:13:58,749 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 15:13:58,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 15:13:58,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067371983] [2021-11-19 15:13:58,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:13:58,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 15:13:58,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:13:58,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 15:13:58,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 15:13:58,753 INFO L87 Difference]: Start difference. First operand 74832 states and 100934 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2021-11-19 15:14:03,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:14:03,537 INFO L93 Difference]: Finished difference Result 74838 states and 100939 transitions. [2021-11-19 15:14:03,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 15:14:03,538 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 428 [2021-11-19 15:14:03,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:14:03,814 INFO L225 Difference]: With dead ends: 74838 [2021-11-19 15:14:03,814 INFO L226 Difference]: Without dead ends: 74836 [2021-11-19 15:14:03,840 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 857 GetRequests, 849 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 15:14:03,840 INFO L933 BasicCegarLoop]: 5038 mSDtfsCounter, 4931 mSDsluCounter, 10053 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4941 SdHoareTripleChecker+Valid, 15091 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 15:14:03,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4941 Valid, 15091 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 15:14:03,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74836 states.