./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-natsemi-ns83820.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_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/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_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/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-natsemi-ns83820.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/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_a2f3b353-001a-4d58-9740-52a6a4229d77/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 a8ab8b9c7011aec39f84a1ecf826f202398208cb106ea4649e1adfd1ea4d4076 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:42:06,843 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:42:06,845 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:42:06,886 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:42:06,887 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:42:06,888 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:42:06,890 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:42:06,893 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:42:06,896 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:42:06,897 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:42:06,898 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:42:06,900 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:42:06,901 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:42:06,902 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:42:06,904 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:42:06,906 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:42:06,907 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:42:06,909 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:42:06,912 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:42:06,915 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:42:06,917 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:42:06,919 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:42:06,922 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:42:06,923 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:42:06,928 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:42:06,928 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:42:06,929 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:42:06,930 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:42:06,931 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:42:06,933 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:42:06,934 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:42:06,935 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:42:06,936 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:42:06,937 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:42:06,939 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:42:06,940 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:42:06,941 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:42:06,941 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:42:06,942 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:42:06,943 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:42:06,944 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:42:06,945 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 13:42:06,976 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:42:06,976 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:42:06,977 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:42:06,978 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:42:06,978 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:42:06,978 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:42:06,979 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:42:06,979 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 13:42:06,979 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:42:06,980 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:42:06,980 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 13:42:06,980 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 13:42:06,981 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:42:06,981 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 13:42:06,981 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 13:42:06,982 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 13:42:06,983 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:42:06,983 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 13:42:06,983 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:42:06,984 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:42:06,984 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:42:06,984 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:42:06,985 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:42:06,985 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:42:06,985 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:42:06,986 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:42:06,986 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:42:06,986 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:42:06,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:42:06,987 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:42:06,987 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:42:06,988 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:42:06,988 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 13:42:06,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 13:42:06,989 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:42:06,989 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:42:06,989 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:42:06,989 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_a2f3b353-001a-4d58-9740-52a6a4229d77/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a8ab8b9c7011aec39f84a1ecf826f202398208cb106ea4649e1adfd1ea4d4076 [2021-11-19 13:42:07,292 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:42:07,328 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:42:07,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:42:07,336 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:42:07,337 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:42:07,339 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i [2021-11-19 13:42:07,418 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/data/a1b1a78d7/07bb03e4710c44eeb24f6bd2e1a9e429/FLAG7a0ac1897 [2021-11-19 13:42:08,558 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:42:08,559 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i [2021-11-19 13:42:08,619 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/data/a1b1a78d7/07bb03e4710c44eeb24f6bd2e1a9e429/FLAG7a0ac1897 [2021-11-19 13:42:08,855 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/data/a1b1a78d7/07bb03e4710c44eeb24f6bd2e1a9e429 [2021-11-19 13:42:08,858 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:42:08,860 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:42:08,862 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:42:08,863 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:42:08,866 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:42:08,867 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:42:08" (1/1) ... [2021-11-19 13:42:08,868 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3209ca50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:42:08, skipping insertion in model container [2021-11-19 13:42:08,868 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:42:08" (1/1) ... [2021-11-19 13:42:08,880 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:42:09,074 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:42:11,074 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 13:42:12,510 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_a2f3b353-001a-4d58-9740-52a6a4229d77/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322443,322456] [2021-11-19 13:42:12,515 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_a2f3b353-001a-4d58-9740-52a6a4229d77/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322612,322625] [2021-11-19 13:42:12,516 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_a2f3b353-001a-4d58-9740-52a6a4229d77/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322779,322792] [2021-11-19 13:42:12,517 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_a2f3b353-001a-4d58-9740-52a6a4229d77/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322947,322960] [2021-11-19 13:42:12,569 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:42:12,637 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 13:42:12,638 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@37159b8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:42:12, skipping insertion in model container [2021-11-19 13:42:12,638 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:42:12,639 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 13:42:12,642 INFO L158 Benchmark]: Toolchain (without parser) took 3779.67ms. Allocated memory was 96.5MB in the beginning and 161.5MB in the end (delta: 65.0MB). Free memory was 51.4MB in the beginning and 102.0MB in the end (delta: -50.7MB). Peak memory consumption was 35.6MB. Max. memory is 16.1GB. [2021-11-19 13:42:12,643 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 96.5MB. Free memory was 50.9MB in the beginning and 50.8MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 13:42:12,645 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3776.14ms. Allocated memory was 96.5MB in the beginning and 161.5MB in the end (delta: 65.0MB). Free memory was 51.1MB in the beginning and 102.0MB in the end (delta: -50.9MB). Peak memory consumption was 35.6MB. Max. memory is 16.1GB. [2021-11-19 13:42:12,648 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 96.5MB. Free memory was 50.9MB in the beginning and 50.8MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3776.14ms. Allocated memory was 96.5MB in the beginning and 161.5MB in the end (delta: 65.0MB). Free memory was 51.1MB in the beginning and 102.0MB in the end (delta: -50.9MB). Peak memory consumption was 35.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6231]: 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_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/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_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/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-natsemi-ns83820.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/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_a2f3b353-001a-4d58-9740-52a6a4229d77/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 a8ab8b9c7011aec39f84a1ecf826f202398208cb106ea4649e1adfd1ea4d4076 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:42:15,518 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:42:15,520 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:42:15,570 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:42:15,571 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:42:15,573 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:42:15,575 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:42:15,578 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:42:15,581 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:42:15,582 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:42:15,584 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:42:15,586 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:42:15,587 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:42:15,588 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:42:15,590 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:42:15,592 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:42:15,594 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:42:15,595 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:42:15,598 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:42:15,602 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:42:15,604 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:42:15,606 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:42:15,608 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:42:15,616 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:42:15,622 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:42:15,627 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:42:15,629 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:42:15,634 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:42:15,635 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:42:15,637 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:42:15,639 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:42:15,640 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:42:15,642 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:42:15,644 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:42:15,645 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:42:15,647 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:42:15,648 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:42:15,649 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:42:15,649 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:42:15,651 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:42:15,653 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:42:15,654 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 13:42:15,722 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:42:15,722 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:42:15,724 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:42:15,724 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:42:15,725 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:42:15,725 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:42:15,725 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:42:15,726 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:42:15,727 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:42:15,727 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:42:15,731 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:42:15,731 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:42:15,731 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:42:15,732 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:42:15,732 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:42:15,732 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:42:15,733 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 13:42:15,733 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 13:42:15,733 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:42:15,734 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:42:15,734 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:42:15,734 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:42:15,735 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 13:42:15,735 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:42:15,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:42:15,736 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:42:15,736 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:42:15,736 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:42:15,736 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 13:42:15,737 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 13:42:15,738 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:42:15,738 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:42:15,738 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:42:15,739 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_a2f3b353-001a-4d58-9740-52a6a4229d77/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a8ab8b9c7011aec39f84a1ecf826f202398208cb106ea4649e1adfd1ea4d4076 [2021-11-19 13:42:16,181 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:42:16,211 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:42:16,215 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:42:16,216 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:42:16,217 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:42:16,219 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i [2021-11-19 13:42:16,324 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/data/5fccc2e4d/01fd2bae2dca4350b282086f73b51c85/FLAG72995783a [2021-11-19 13:42:17,638 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:42:17,640 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i [2021-11-19 13:42:17,705 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/data/5fccc2e4d/01fd2bae2dca4350b282086f73b51c85/FLAG72995783a [2021-11-19 13:42:17,848 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/data/5fccc2e4d/01fd2bae2dca4350b282086f73b51c85 [2021-11-19 13:42:17,851 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:42:17,853 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:42:17,856 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:42:17,857 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:42:17,861 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:42:17,863 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:42:17" (1/1) ... [2021-11-19 13:42:17,866 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35876fe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:42:17, skipping insertion in model container [2021-11-19 13:42:17,867 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:42:17" (1/1) ... [2021-11-19 13:42:17,876 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:42:18,145 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:42:21,831 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_a2f3b353-001a-4d58-9740-52a6a4229d77/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322443,322456] [2021-11-19 13:42:21,835 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_a2f3b353-001a-4d58-9740-52a6a4229d77/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322612,322625] [2021-11-19 13:42:21,836 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_a2f3b353-001a-4d58-9740-52a6a4229d77/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322779,322792] [2021-11-19 13:42:21,843 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_a2f3b353-001a-4d58-9740-52a6a4229d77/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322947,322960] [2021-11-19 13:42:21,888 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:42:21,954 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 13:42:22,074 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:42:22,620 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_a2f3b353-001a-4d58-9740-52a6a4229d77/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322443,322456] [2021-11-19 13:42:22,621 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_a2f3b353-001a-4d58-9740-52a6a4229d77/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322612,322625] [2021-11-19 13:42:22,621 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_a2f3b353-001a-4d58-9740-52a6a4229d77/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322779,322792] [2021-11-19 13:42:22,622 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_a2f3b353-001a-4d58-9740-52a6a4229d77/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322947,322960] [2021-11-19 13:42:22,630 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:42:22,668 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 13:42:23,191 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_a2f3b353-001a-4d58-9740-52a6a4229d77/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322443,322456] [2021-11-19 13:42:23,192 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_a2f3b353-001a-4d58-9740-52a6a4229d77/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322612,322625] [2021-11-19 13:42:23,193 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_a2f3b353-001a-4d58-9740-52a6a4229d77/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322779,322792] [2021-11-19 13:42:23,194 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_a2f3b353-001a-4d58-9740-52a6a4229d77/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322947,322960] [2021-11-19 13:42:23,213 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:42:23,639 INFO L208 MainTranslator]: Completed translation [2021-11-19 13:42:23,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:42:23 WrapperNode [2021-11-19 13:42:23,640 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:42:23,642 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 13:42:23,642 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 13:42:23,642 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 13:42:23,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:42:23" (1/1) ... [2021-11-19 13:42:23,814 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:42:23" (1/1) ... [2021-11-19 13:42:24,051 INFO L137 Inliner]: procedures = 467, calls = 1763, calls flagged for inlining = 217, calls inlined = 199, statements flattened = 4159 [2021-11-19 13:42:24,052 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 13:42:24,054 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 13:42:24,055 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 13:42:24,055 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 13:42:24,066 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:42:23" (1/1) ... [2021-11-19 13:42:24,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:42:23" (1/1) ... [2021-11-19 13:42:24,114 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:42:23" (1/1) ... [2021-11-19 13:42:24,115 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:42:23" (1/1) ... [2021-11-19 13:42:24,261 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:42:23" (1/1) ... [2021-11-19 13:42:24,285 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:42:23" (1/1) ... [2021-11-19 13:42:24,314 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:42:23" (1/1) ... [2021-11-19 13:42:24,364 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 13:42:24,365 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 13:42:24,365 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 13:42:24,365 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 13:42:24,366 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:42:23" (1/1) ... [2021-11-19 13:42:24,375 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:42:24,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:42:24,404 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 13:42:24,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 13:42:24,464 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_set_multicast [2021-11-19 13:42:24,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_set_multicast [2021-11-19 13:42:24,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 13:42:24,465 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 13:42:24,466 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_rx_kick [2021-11-19 13:42:24,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_rx_kick [2021-11-19 13:42:24,466 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-19 13:42:24,466 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-19 13:42:24,467 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_do_reset [2021-11-19 13:42:24,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_do_reset [2021-11-19 13:42:24,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_87 [2021-11-19 13:42:24,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_87 [2021-11-19 13:42:24,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 13:42:24,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 13:42:24,468 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-19 13:42:24,468 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-19 13:42:24,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 13:42:24,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 13:42:24,469 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-19 13:42:24,469 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-19 13:42:24,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_62 [2021-11-19 13:42:24,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_62 [2021-11-19 13:42:24,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_73 [2021-11-19 13:42:24,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_73 [2021-11-19 13:42:24,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_69 [2021-11-19 13:42:24,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_69 [2021-11-19 13:42:24,472 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_remove_one [2021-11-19 13:42:24,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_remove_one [2021-11-19 13:42:24,472 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-19 13:42:24,473 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-19 13:42:24,473 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_update_stats [2021-11-19 13:42:24,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_update_stats [2021-11-19 13:42:24,474 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-19 13:42:24,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-19 13:42:24,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 13:42:24,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 13:42:24,474 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-19 13:42:24,474 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-19 13:42:24,475 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-19 13:42:24,475 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-19 13:42:24,475 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-19 13:42:24,476 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-19 13:42:24,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 13:42:24,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 13:42:24,478 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-19 13:42:24,478 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-19 13:42:24,478 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-19 13:42:24,478 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-19 13:42:24,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 13:42:24,479 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-19 13:42:24,479 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-19 13:42:24,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 13:42:24,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 13:42:24,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 13:42:24,480 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-19 13:42:24,480 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-19 13:42:24,481 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-19 13:42:24,481 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-19 13:42:24,481 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_tx_timeout [2021-11-19 13:42:24,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_tx_timeout [2021-11-19 13:42:24,483 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-19 13:42:24,483 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-19 13:42:24,483 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-19 13:42:24,483 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-19 13:42:24,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 13:42:24,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 13:42:24,484 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-19 13:42:24,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-19 13:42:24,484 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-19 13:42:24,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-19 13:42:24,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-19 13:42:24,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-19 13:42:24,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-19 13:42:24,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-19 13:42:24,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-19 13:42:24,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-19 13:42:24,541 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-19 13:42:24,541 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-19 13:42:24,541 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-19 13:42:24,541 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-19 13:42:24,541 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-19 13:42:24,541 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-19 13:42:24,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-19 13:42:24,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-19 13:42:24,542 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_run_bist [2021-11-19 13:42:24,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_run_bist [2021-11-19 13:42:24,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 13:42:24,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-19 13:42:24,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-19 13:42:24,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-19 13:42:24,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-19 13:42:24,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-19 13:42:24,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-19 13:42:24,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 13:42:24,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 13:42:24,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 13:42:24,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 13:42:24,543 INFO L130 BoogieDeclarations]: Found specification of procedure clear_rx_desc [2021-11-19 13:42:24,544 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_rx_desc [2021-11-19 13:42:24,544 INFO L130 BoogieDeclarations]: Found specification of procedure phy_intr [2021-11-19 13:42:24,544 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_intr [2021-11-19 13:42:24,544 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 13:42:24,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 13:42:24,544 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-19 13:42:24,544 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-19 13:42:24,544 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-19 13:42:24,545 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-19 13:42:24,545 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 13:42:24,545 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 13:42:24,545 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-19 13:42:24,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-19 13:42:24,545 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-19 13:42:24,545 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-19 13:42:24,545 INFO L130 BoogieDeclarations]: Found specification of procedure do_tx_done [2021-11-19 13:42:24,546 INFO L138 BoogieDeclarations]: Found implementation of procedure do_tx_done [2021-11-19 13:42:24,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_misc_lock_of_ns83820 [2021-11-19 13:42:24,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_misc_lock_of_ns83820 [2021-11-19 13:42:24,546 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-19 13:42:24,546 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-19 13:42:24,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-19 13:42:24,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-19 13:42:24,546 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-11-19 13:42:24,547 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-11-19 13:42:24,547 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-19 13:42:24,547 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-19 13:42:24,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 13:42:24,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 13:42:24,547 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_stop [2021-11-19 13:42:24,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_stop [2021-11-19 13:42:24,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 13:42:24,551 INFO L130 BoogieDeclarations]: Found specification of procedure kick_tx [2021-11-19 13:42:24,551 INFO L138 BoogieDeclarations]: Found implementation of procedure kick_tx [2021-11-19 13:42:24,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 13:42:24,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 13:42:24,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_rx_info [2021-11-19 13:42:24,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_rx_info [2021-11-19 13:42:24,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 13:42:24,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 13:42:24,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 13:42:24,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 13:42:24,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 13:42:24,553 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-11-19 13:42:24,554 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-11-19 13:42:24,554 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-19 13:42:24,554 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-19 13:42:24,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-19 13:42:24,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-19 13:42:24,555 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-19 13:42:24,555 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-19 13:42:24,555 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-11-19 13:42:24,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-11-19 13:42:24,555 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-19 13:42:24,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-19 13:42:24,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 13:42:24,556 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 13:42:24,556 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-19 13:42:24,556 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-19 13:42:24,557 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-19 13:42:24,557 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-19 13:42:24,557 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-19 13:42:24,557 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-19 13:42:24,557 INFO L130 BoogieDeclarations]: Found specification of procedure PRIV [2021-11-19 13:42:24,557 INFO L138 BoogieDeclarations]: Found implementation of procedure PRIV [2021-11-19 13:42:24,558 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-19 13:42:24,558 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-19 13:42:24,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 13:42:24,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_72 [2021-11-19 13:42:24,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_72 [2021-11-19 13:42:24,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 13:42:24,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 13:42:24,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 13:42:24,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 13:42:24,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 13:42:24,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 13:42:24,560 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-11-19 13:42:24,560 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-11-19 13:42:24,560 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-19 13:42:24,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-19 13:42:24,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 13:42:24,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 13:42:24,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-19 13:42:24,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-19 13:42:24,561 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-11-19 13:42:24,562 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-11-19 13:42:24,562 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-19 13:42:24,562 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-19 13:42:24,562 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-19 13:42:24,562 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-19 13:42:24,563 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_tx_lock_of_ns83820 [2021-11-19 13:42:24,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_tx_lock_of_ns83820 [2021-11-19 13:42:24,563 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_irq [2021-11-19 13:42:24,563 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_irq [2021-11-19 13:42:24,563 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 13:42:24,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 13:42:24,564 INFO L130 BoogieDeclarations]: Found specification of procedure build_rx_desc [2021-11-19 13:42:24,564 INFO L138 BoogieDeclarations]: Found implementation of procedure build_rx_desc [2021-11-19 13:42:24,564 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-19 13:42:24,564 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-19 13:42:24,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 13:42:24,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 13:42:24,565 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-19 13:42:24,565 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-19 13:42:24,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_misc_lock_of_ns83820 [2021-11-19 13:42:24,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_misc_lock_of_ns83820 [2021-11-19 13:42:24,566 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-11-19 13:42:24,566 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-11-19 13:42:24,566 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_open [2021-11-19 13:42:24,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_open [2021-11-19 13:42:24,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 13:42:24,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 13:42:24,568 INFO L130 BoogieDeclarations]: Found specification of procedure rx_irq [2021-11-19 13:42:24,568 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_irq [2021-11-19 13:42:24,568 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_disable_interrupts [2021-11-19 13:42:24,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_disable_interrupts [2021-11-19 13:42:24,569 INFO L130 BoogieDeclarations]: Found specification of procedure kick_rx [2021-11-19 13:42:24,569 INFO L138 BoogieDeclarations]: Found implementation of procedure kick_rx [2021-11-19 13:42:24,569 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-19 13:42:24,569 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-19 13:42:24,570 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-19 13:42:24,570 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-19 13:42:24,570 INFO L130 BoogieDeclarations]: Found specification of procedure rx_refill [2021-11-19 13:42:24,570 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_refill [2021-11-19 13:42:24,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-19 13:42:24,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-19 13:42:24,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_rx_info [2021-11-19 13:42:24,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_rx_info [2021-11-19 13:42:24,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_tx_lock_of_ns83820 [2021-11-19 13:42:24,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_tx_lock_of_ns83820 [2021-11-19 13:42:25,576 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 13:42:25,581 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 13:42:25,791 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 13:42:52,993 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-19 13:42:53,360 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 13:42:53,397 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 13:42:53,397 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-19 13:42:53,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:42:53 BoogieIcfgContainer [2021-11-19 13:42:53,404 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 13:42:53,407 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 13:42:53,407 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 13:42:53,411 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 13:42:53,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:42:17" (1/3) ... [2021-11-19 13:42:53,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@132f9a8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:42:53, skipping insertion in model container [2021-11-19 13:42:53,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:42:23" (2/3) ... [2021-11-19 13:42:53,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@132f9a8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:42:53, skipping insertion in model container [2021-11-19 13:42:53,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:42:53" (3/3) ... [2021-11-19 13:42:53,415 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i [2021-11-19 13:42:53,422 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 13:42:53,422 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-19 13:42:53,499 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 13:42:53,507 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 13:42:53,508 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-19 13:42:53,610 INFO L276 IsEmpty]: Start isEmpty. Operand has 1770 states, 1156 states have (on average 1.2301038062283738) internal successors, (1422), 1188 states have internal predecessors, (1422), 508 states have call successors, (508), 104 states have call predecessors, (508), 103 states have return successors, (503), 499 states have call predecessors, (503), 503 states have call successors, (503) [2021-11-19 13:42:53,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-19 13:42:53,630 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:42:53,632 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:42:53,632 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 13:42:53,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:42:53,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1440303341, now seen corresponding path program 1 times [2021-11-19 13:42:53,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:42:53,659 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [241181988] [2021-11-19 13:42:53,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:42:53,661 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:42:53,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:42:53,668 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:42:53,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 13:42:54,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:42:54,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 835 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:42:54,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:42:55,212 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2021-11-19 13:42:55,213 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:42:55,660 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-19 13:42:55,661 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:42:55,662 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [241181988] [2021-11-19 13:42:55,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [241181988] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:42:55,662 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:42:55,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:42:55,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102782652] [2021-11-19 13:42:55,665 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:42:55,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:42:55,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:42:55,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:42:55,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:42:55,711 INFO L87 Difference]: Start difference. First operand has 1770 states, 1156 states have (on average 1.2301038062283738) internal successors, (1422), 1188 states have internal predecessors, (1422), 508 states have call successors, (508), 104 states have call predecessors, (508), 103 states have return successors, (503), 499 states have call predecessors, (503), 503 states have call successors, (503) Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2021-11-19 13:42:57,855 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:43:06,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:43:06,465 INFO L93 Difference]: Finished difference Result 6901 states and 9767 transitions. [2021-11-19 13:43:06,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:43:06,469 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 101 [2021-11-19 13:43:06,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:43:06,547 INFO L225 Difference]: With dead ends: 6901 [2021-11-19 13:43:06,548 INFO L226 Difference]: Without dead ends: 5133 [2021-11-19 13:43:06,574 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:43:06,578 INFO L933 BasicCegarLoop]: 3408 mSDtfsCounter, 6051 mSDsluCounter, 3719 mSDsCounter, 0 mSdLazyCounter, 1007 mSolverCounterSat, 957 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6051 SdHoareTripleChecker+Valid, 7127 SdHoareTripleChecker+Invalid, 1965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 957 IncrementalHoareTripleChecker+Valid, 1007 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2021-11-19 13:43:06,579 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6051 Valid, 7127 Invalid, 1965 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [957 Valid, 1007 Invalid, 1 Unknown, 0 Unchecked, 9.9s Time] [2021-11-19 13:43:06,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5133 states. [2021-11-19 13:43:07,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5133 to 5105. [2021-11-19 13:43:07,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 3357 states have (on average 1.2228179922549895) internal successors, (4105), 3448 states have internal predecessors, (4105), 1441 states have call successors, (1441), 305 states have call predecessors, (1441), 304 states have return successors, (1438), 1426 states have call predecessors, (1438), 1438 states have call successors, (1438) [2021-11-19 13:43:07,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 6984 transitions. [2021-11-19 13:43:07,241 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 6984 transitions. Word has length 101 [2021-11-19 13:43:07,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:43:07,244 INFO L470 AbstractCegarLoop]: Abstraction has 5105 states and 6984 transitions. [2021-11-19 13:43:07,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2021-11-19 13:43:07,244 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 6984 transitions. [2021-11-19 13:43:07,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-19 13:43:07,259 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:43:07,260 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:43:07,284 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-19 13:43:07,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:43:07,484 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 13:43:07,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:43:07,485 INFO L85 PathProgramCache]: Analyzing trace with hash -655308967, now seen corresponding path program 1 times [2021-11-19 13:43:07,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:43:07,487 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2081314373] [2021-11-19 13:43:07,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:43:07,487 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:43:07,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:43:07,491 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:43:07,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 13:43:08,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:43:08,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 878 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:43:08,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:43:08,954 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2021-11-19 13:43:08,954 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:43:09,345 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-19 13:43:09,346 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:43:09,346 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2081314373] [2021-11-19 13:43:09,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2081314373] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:43:09,347 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:43:09,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 13:43:09,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110219065] [2021-11-19 13:43:09,348 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:43:09,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 13:43:09,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:43:09,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 13:43:09,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:43:09,351 INFO L87 Difference]: Start difference. First operand 5105 states and 6984 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-19 13:43:11,463 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:43:12,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:43:12,233 INFO L93 Difference]: Finished difference Result 14371 states and 19613 transitions. [2021-11-19 13:43:12,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:43:12,234 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 114 [2021-11-19 13:43:12,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:43:12,324 INFO L225 Difference]: With dead ends: 14371 [2021-11-19 13:43:12,324 INFO L226 Difference]: Without dead ends: 9285 [2021-11-19 13:43:12,352 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 225 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 13:43:12,353 INFO L933 BasicCegarLoop]: 2834 mSDtfsCounter, 1956 mSDsluCounter, 2329 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1956 SdHoareTripleChecker+Valid, 5163 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-19 13:43:12,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1956 Valid, 5163 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 51 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-19 13:43:12,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9285 states. [2021-11-19 13:43:12,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9285 to 9246. [2021-11-19 13:43:12,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9246 states, 6035 states have (on average 1.2173985086992543) internal successors, (7347), 6206 states have internal predecessors, (7347), 2619 states have call successors, (2619), 590 states have call predecessors, (2619), 589 states have return successors, (2625), 2590 states have call predecessors, (2625), 2616 states have call successors, (2625) [2021-11-19 13:43:13,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9246 states to 9246 states and 12591 transitions. [2021-11-19 13:43:13,133 INFO L78 Accepts]: Start accepts. Automaton has 9246 states and 12591 transitions. Word has length 114 [2021-11-19 13:43:13,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:43:13,134 INFO L470 AbstractCegarLoop]: Abstraction has 9246 states and 12591 transitions. [2021-11-19 13:43:13,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-19 13:43:13,135 INFO L276 IsEmpty]: Start isEmpty. Operand 9246 states and 12591 transitions. [2021-11-19 13:43:13,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-19 13:43:13,145 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:43:13,146 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:43:13,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-19 13:43:13,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:43:13,368 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 13:43:13,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:43:13,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1671475719, now seen corresponding path program 1 times [2021-11-19 13:43:13,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:43:13,370 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1370254431] [2021-11-19 13:43:13,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:43:13,371 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:43:13,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:43:13,378 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:43:13,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 13:43:14,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:43:14,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 926 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:43:14,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:43:14,752 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2021-11-19 13:43:14,753 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:43:15,130 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-19 13:43:15,130 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:43:15,130 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1370254431] [2021-11-19 13:43:15,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1370254431] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:43:15,131 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:43:15,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:43:15,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159061645] [2021-11-19 13:43:15,132 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:43:15,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:43:15,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:43:15,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:43:15,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:43:15,136 INFO L87 Difference]: Start difference. First operand 9246 states and 12591 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2021-11-19 13:43:17,265 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:43:23,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:43:23,692 INFO L93 Difference]: Finished difference Result 24518 states and 33294 transitions. [2021-11-19 13:43:23,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:43:23,694 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 115 [2021-11-19 13:43:23,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:43:23,855 INFO L225 Difference]: With dead ends: 24518 [2021-11-19 13:43:23,856 INFO L226 Difference]: Without dead ends: 15291 [2021-11-19 13:43:23,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:43:23,917 INFO L933 BasicCegarLoop]: 3727 mSDtfsCounter, 4048 mSDsluCounter, 4017 mSDsCounter, 0 mSdLazyCounter, 1077 mSolverCounterSat, 41 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4048 SdHoareTripleChecker+Valid, 7744 SdHoareTripleChecker+Invalid, 1119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1077 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2021-11-19 13:43:23,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4048 Valid, 7744 Invalid, 1119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1077 Invalid, 1 Unknown, 0 Unchecked, 7.6s Time] [2021-11-19 13:43:23,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15291 states. [2021-11-19 13:43:24,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15291 to 15235. [2021-11-19 13:43:24,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15235 states, 9907 states have (on average 1.2132835368931059) internal successors, (12020), 10209 states have internal predecessors, (12020), 4273 states have call successors, (4273), 1053 states have call predecessors, (4273), 1052 states have return successors, (4276), 4230 states have call predecessors, (4276), 4270 states have call successors, (4276) [2021-11-19 13:43:25,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15235 states to 15235 states and 20569 transitions. [2021-11-19 13:43:25,150 INFO L78 Accepts]: Start accepts. Automaton has 15235 states and 20569 transitions. Word has length 115 [2021-11-19 13:43:25,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:43:25,151 INFO L470 AbstractCegarLoop]: Abstraction has 15235 states and 20569 transitions. [2021-11-19 13:43:25,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2021-11-19 13:43:25,152 INFO L276 IsEmpty]: Start isEmpty. Operand 15235 states and 20569 transitions. [2021-11-19 13:43:25,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-19 13:43:25,155 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:43:25,156 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 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] [2021-11-19 13:43:25,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 13:43:25,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:43:25,378 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 13:43:25,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:43:25,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1062090004, now seen corresponding path program 1 times [2021-11-19 13:43:25,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:43:25,380 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [601318430] [2021-11-19 13:43:25,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:43:25,380 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:43:25,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:43:25,383 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:43:25,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 13:43:26,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:43:26,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 923 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:43:26,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:43:26,646 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2021-11-19 13:43:26,646 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:43:27,022 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2021-11-19 13:43:27,023 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:43:27,023 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [601318430] [2021-11-19 13:43:27,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [601318430] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:43:27,024 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:43:27,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:43:27,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110804553] [2021-11-19 13:43:27,024 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:43:27,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:43:27,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:43:27,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:43:27,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:43:27,026 INFO L87 Difference]: Start difference. First operand 15235 states and 20569 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2021-11-19 13:43:29,168 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:43:34,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:43:34,013 INFO L93 Difference]: Finished difference Result 55265 states and 74667 transitions. [2021-11-19 13:43:34,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:43:34,014 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 119 [2021-11-19 13:43:34,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:43:34,352 INFO L225 Difference]: With dead ends: 55265 [2021-11-19 13:43:34,352 INFO L226 Difference]: Without dead ends: 40049 [2021-11-19 13:43:34,418 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:43:34,420 INFO L933 BasicCegarLoop]: 3321 mSDtfsCounter, 4404 mSDsluCounter, 5796 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4404 SdHoareTripleChecker+Valid, 9117 SdHoareTripleChecker+Invalid, 896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2021-11-19 13:43:34,421 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4404 Valid, 9117 Invalid, 896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 888 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2021-11-19 13:43:34,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40049 states. [2021-11-19 13:43:36,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40049 to 39947. [2021-11-19 13:43:36,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39947 states, 26012 states have (on average 1.2179378748270029) internal successors, (31681), 26856 states have internal predecessors, (31681), 11084 states have call successors, (11084), 2869 states have call predecessors, (11084), 2848 states have return successors, (11199), 10889 states have call predecessors, (11199), 11081 states have call successors, (11199) [2021-11-19 13:43:37,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39947 states to 39947 states and 53964 transitions. [2021-11-19 13:43:37,176 INFO L78 Accepts]: Start accepts. Automaton has 39947 states and 53964 transitions. Word has length 119 [2021-11-19 13:43:37,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:43:37,177 INFO L470 AbstractCegarLoop]: Abstraction has 39947 states and 53964 transitions. [2021-11-19 13:43:37,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2021-11-19 13:43:37,178 INFO L276 IsEmpty]: Start isEmpty. Operand 39947 states and 53964 transitions. [2021-11-19 13:43:37,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-19 13:43:37,180 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:43:37,180 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 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] [2021-11-19 13:43:37,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 13:43:37,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:43:37,402 INFO L402 AbstractCegarLoop]: === Iteration 5 === 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 13:43:37,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:43:37,403 INFO L85 PathProgramCache]: Analyzing trace with hash -575522440, now seen corresponding path program 1 times [2021-11-19 13:43:37,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:43:37,404 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1865621440] [2021-11-19 13:43:37,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:43:37,404 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:43:37,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:43:37,406 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:43:37,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 13:43:38,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:43:38,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 926 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:43:38,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:43:38,692 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2021-11-19 13:43:38,693 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:43:39,009 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2021-11-19 13:43:39,009 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:43:39,009 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1865621440] [2021-11-19 13:43:39,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1865621440] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:43:39,010 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:43:39,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:43:39,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336239077] [2021-11-19 13:43:39,011 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:43:39,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:43:39,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:43:39,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:43:39,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:43:39,013 INFO L87 Difference]: Start difference. First operand 39947 states and 53964 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-19 13:43:41,144 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:43:48,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:43:48,734 INFO L93 Difference]: Finished difference Result 142822 states and 191504 transitions. [2021-11-19 13:43:48,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:43:48,736 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 121 [2021-11-19 13:43:48,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:43:49,628 INFO L225 Difference]: With dead ends: 142822 [2021-11-19 13:43:49,628 INFO L226 Difference]: Without dead ends: 102894 [2021-11-19 13:43:49,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:43:49,824 INFO L933 BasicCegarLoop]: 4000 mSDtfsCounter, 5498 mSDsluCounter, 3639 mSDsCounter, 0 mSdLazyCounter, 937 mSolverCounterSat, 865 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5498 SdHoareTripleChecker+Valid, 7639 SdHoareTripleChecker+Invalid, 1803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 865 IncrementalHoareTripleChecker+Valid, 937 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2021-11-19 13:43:49,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5498 Valid, 7639 Invalid, 1803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [865 Valid, 937 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2021-11-19 13:43:49,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102894 states. [2021-11-19 13:43:55,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102894 to 102762. [2021-11-19 13:43:55,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102762 states, 67558 states have (on average 1.209582876935374) internal successors, (81717), 69486 states have internal predecessors, (81717), 27574 states have call successors, (27574), 7716 states have call predecessors, (27574), 7627 states have return successors, (27937), 26909 states have call predecessors, (27937), 27571 states have call successors, (27937) [2021-11-19 13:43:56,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102762 states to 102762 states and 137228 transitions. [2021-11-19 13:43:56,658 INFO L78 Accepts]: Start accepts. Automaton has 102762 states and 137228 transitions. Word has length 121 [2021-11-19 13:43:56,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:43:56,659 INFO L470 AbstractCegarLoop]: Abstraction has 102762 states and 137228 transitions. [2021-11-19 13:43:56,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-19 13:43:56,660 INFO L276 IsEmpty]: Start isEmpty. Operand 102762 states and 137228 transitions. [2021-11-19 13:43:56,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-11-19 13:43:56,662 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:43:56,663 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 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] [2021-11-19 13:43:56,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 13:43:56,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:43:56,876 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 13:43:56,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:43:56,876 INFO L85 PathProgramCache]: Analyzing trace with hash -204149764, now seen corresponding path program 1 times [2021-11-19 13:43:56,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:43:56,878 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1287555396] [2021-11-19 13:43:56,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:43:56,878 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:43:56,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:43:56,880 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:43:56,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 13:43:57,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:43:57,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 956 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:43:57,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:43:58,830 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2021-11-19 13:43:58,830 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:43:59,515 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2021-11-19 13:43:59,515 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:43:59,515 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1287555396] [2021-11-19 13:43:59,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1287555396] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:43:59,515 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:43:59,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-19 13:43:59,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790461823] [2021-11-19 13:43:59,516 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:43:59,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 13:43:59,517 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:43:59,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 13:43:59,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:43:59,517 INFO L87 Difference]: Start difference. First operand 102762 states and 137228 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (35), 4 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-19 13:44:03,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:44:03,245 INFO L93 Difference]: Finished difference Result 102768 states and 137233 transitions. [2021-11-19 13:44:03,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:44:03,245 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (35), 4 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 153 [2021-11-19 13:44:03,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:44:03,818 INFO L225 Difference]: With dead ends: 102768 [2021-11-19 13:44:03,818 INFO L226 Difference]: Without dead ends: 102766 [2021-11-19 13:44:03,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:44:03,870 INFO L933 BasicCegarLoop]: 2402 mSDtfsCounter, 2326 mSDsluCounter, 7190 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2339 SdHoareTripleChecker+Valid, 9592 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:44:03,870 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2339 Valid, 9592 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:44:04,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102766 states. [2021-11-19 13:44:08,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102766 to 102766. [2021-11-19 13:44:08,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102766 states, 67561 states have (on average 1.2095735705510575) internal successors, (81720), 69489 states have internal predecessors, (81720), 27574 states have call successors, (27574), 7717 states have call predecessors, (27574), 7628 states have return successors, (27937), 26909 states have call predecessors, (27937), 27571 states have call successors, (27937) [2021-11-19 13:44:09,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102766 states to 102766 states and 137231 transitions. [2021-11-19 13:44:09,780 INFO L78 Accepts]: Start accepts. Automaton has 102766 states and 137231 transitions. Word has length 153 [2021-11-19 13:44:09,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:44:09,781 INFO L470 AbstractCegarLoop]: Abstraction has 102766 states and 137231 transitions. [2021-11-19 13:44:09,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (35), 4 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-19 13:44:09,781 INFO L276 IsEmpty]: Start isEmpty. Operand 102766 states and 137231 transitions. [2021-11-19 13:44:09,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-11-19 13:44:09,784 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:44:09,784 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 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] [2021-11-19 13:44:09,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 13:44:09,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:44:09,988 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 13:44:09,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:44:09,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1424260497, now seen corresponding path program 1 times [2021-11-19 13:44:09,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:44:09,989 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1640360664] [2021-11-19 13:44:09,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:44:09,990 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:44:09,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:44:09,990 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:44:09,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2f3b353-001a-4d58-9740-52a6a4229d77/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 13:44:10,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:44:10,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 963 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:44:10,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:44:11,704 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2021-11-19 13:44:11,704 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:44:12,378 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2021-11-19 13:44:12,378 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:44:12,378 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1640360664] [2021-11-19 13:44:12,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1640360664] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:44:12,379 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:44:12,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 13:44:12,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136626076] [2021-11-19 13:44:12,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:44:12,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:44:12,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:44:12,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:44:12,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:44:12,381 INFO L87 Difference]: Start difference. First operand 102766 states and 137231 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-19 13:44:16,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:44:16,493 INFO L93 Difference]: Finished difference Result 102772 states and 137236 transitions. [2021-11-19 13:44:16,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:44:16,494 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 158 [2021-11-19 13:44:16,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:44:16,989 INFO L225 Difference]: With dead ends: 102772 [2021-11-19 13:44:16,989 INFO L226 Difference]: Without dead ends: 102770 [2021-11-19 13:44:17,033 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:44:17,034 INFO L933 BasicCegarLoop]: 2405 mSDtfsCounter, 2348 mSDsluCounter, 4789 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2360 SdHoareTripleChecker+Valid, 7194 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:44:17,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2360 Valid, 7194 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:44:17,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102770 states. [2021-11-19 13:44:22,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102770 to 102770. [2021-11-19 13:44:22,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102770 states, 67564 states have (on average 1.2095642649931917) internal successors, (81723), 69492 states have internal predecessors, (81723), 27574 states have call successors, (27574), 7718 states have call predecessors, (27574), 7629 states have return successors, (27937), 26909 states have call predecessors, (27937), 27571 states have call successors, (27937)