./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-hp-hp100.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_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/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_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/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-hp-hp100.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/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_9c57eb2b-765d-4081-b865-346931892d14/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 6b2cae6d498f7aa4576ffcfd28b3f955c7840001d7c2abb7c90b6970c97881d1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:40:32,817 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:40:32,819 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:40:32,856 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:40:32,857 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:40:32,858 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:40:32,860 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:40:32,862 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:40:32,864 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:40:32,865 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:40:32,866 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:40:32,868 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:40:32,868 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:40:32,869 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:40:32,871 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:40:32,873 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:40:32,874 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:40:32,875 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:40:32,877 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:40:32,880 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:40:32,882 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:40:32,883 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:40:32,885 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:40:32,886 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:40:32,890 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:40:32,891 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:40:32,891 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:40:32,892 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:40:32,893 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:40:32,894 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:40:32,895 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:40:32,896 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:40:32,897 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:40:32,898 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:40:32,899 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:40:32,900 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:40:32,908 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:40:32,909 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:40:32,909 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:40:32,911 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:40:32,912 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:40:32,913 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 14:40:32,975 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:40:32,976 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:40:32,978 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:40:32,978 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:40:32,978 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:40:32,979 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:40:32,979 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:40:32,979 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:40:32,983 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:40:32,983 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:40:32,984 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:40:32,984 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:40:32,984 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:40:32,984 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:40:32,984 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:40:32,985 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:40:32,986 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:40:32,986 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:40:32,986 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:40:32,986 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:40:32,986 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:40:32,987 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:40:32,987 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:40:32,987 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:40:32,987 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:40:32,987 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:40:32,988 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:40:32,988 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:40:32,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:40:32,988 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:40:32,989 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:40:32,989 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:40:32,989 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:40:32,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:40:32,990 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:40:32,990 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:40:32,990 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:40:32,990 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_9c57eb2b-765d-4081-b865-346931892d14/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b2cae6d498f7aa4576ffcfd28b3f955c7840001d7c2abb7c90b6970c97881d1 [2021-11-19 14:40:33,308 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:40:33,345 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:40:33,348 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:40:33,350 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:40:33,351 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:40:33,353 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i [2021-11-19 14:40:33,425 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/data/5f2c4da13/422acbc871f14b3fbebcc83de1f97fc5/FLAG604be775e [2021-11-19 14:40:34,405 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:40:34,406 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i [2021-11-19 14:40:34,503 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/data/5f2c4da13/422acbc871f14b3fbebcc83de1f97fc5/FLAG604be775e [2021-11-19 14:40:34,788 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/data/5f2c4da13/422acbc871f14b3fbebcc83de1f97fc5 [2021-11-19 14:40:34,791 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:40:34,793 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:40:34,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:40:34,795 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:40:34,799 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:40:34,800 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:40:34" (1/1) ... [2021-11-19 14:40:34,801 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@382cf5ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:34, skipping insertion in model container [2021-11-19 14:40:34,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:40:34" (1/1) ... [2021-11-19 14:40:34,810 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:40:34,959 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:40:37,726 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_9c57eb2b-765d-4081-b865-346931892d14/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[314801,314814] [2021-11-19 14:40:37,729 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_9c57eb2b-765d-4081-b865-346931892d14/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[314970,314983] [2021-11-19 14:40:37,730 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_9c57eb2b-765d-4081-b865-346931892d14/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[315137,315150] [2021-11-19 14:40:37,730 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_9c57eb2b-765d-4081-b865-346931892d14/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[315305,315318] [2021-11-19 14:40:37,749 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:40:37,781 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 14:40:37,782 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@181f4a50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:37, skipping insertion in model container [2021-11-19 14:40:37,782 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:40:37,783 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:40:37,785 INFO L158 Benchmark]: Toolchain (without parser) took 2990.88ms. Allocated memory was 109.1MB in the beginning and 153.1MB in the end (delta: 44.0MB). Free memory was 82.8MB in the beginning and 93.8MB in the end (delta: -11.1MB). Peak memory consumption was 51.5MB. Max. memory is 16.1GB. [2021-11-19 14:40:37,786 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 109.1MB. Free memory was 91.0MB in the beginning and 90.9MB in the end (delta: 91.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:40:37,787 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2987.43ms. Allocated memory was 109.1MB in the beginning and 153.1MB in the end (delta: 44.0MB). Free memory was 82.8MB in the beginning and 93.8MB in the end (delta: -11.1MB). Peak memory consumption was 51.5MB. Max. memory is 16.1GB. [2021-11-19 14:40:37,789 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 109.1MB. Free memory was 91.0MB in the beginning and 90.9MB in the end (delta: 91.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2987.43ms. Allocated memory was 109.1MB in the beginning and 153.1MB in the end (delta: 44.0MB). Free memory was 82.8MB in the beginning and 93.8MB in the end (delta: -11.1MB). Peak memory consumption was 51.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6042]: 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_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/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_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/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-hp-hp100.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/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_9c57eb2b-765d-4081-b865-346931892d14/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 6b2cae6d498f7aa4576ffcfd28b3f955c7840001d7c2abb7c90b6970c97881d1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:40:39,944 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:40:39,946 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:40:39,976 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:40:39,976 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:40:39,978 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:40:39,979 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:40:39,982 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:40:39,984 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:40:39,985 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:40:39,986 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:40:39,987 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:40:39,988 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:40:39,989 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:40:39,991 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:40:39,992 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:40:39,993 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:40:39,994 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:40:40,000 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:40:40,002 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:40:40,004 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:40:40,010 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:40:40,011 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:40:40,012 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:40:40,016 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:40:40,016 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:40:40,017 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:40:40,018 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:40:40,018 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:40:40,019 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:40:40,020 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:40:40,021 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:40:40,029 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:40:40,030 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:40:40,031 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:40:40,031 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:40:40,032 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:40:40,032 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:40:40,032 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:40:40,034 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:40:40,035 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:40:40,037 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 14:40:40,073 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:40:40,074 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:40:40,074 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:40:40,075 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:40:40,075 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:40:40,075 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:40:40,075 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:40:40,075 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:40:40,076 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:40:40,076 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:40:40,077 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:40:40,077 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:40:40,077 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:40:40,077 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:40:40,077 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:40:40,078 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:40:40,078 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:40:40,078 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:40:40,078 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:40:40,078 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:40:40,078 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:40:40,079 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:40:40,079 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:40:40,079 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:40:40,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:40:40,080 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:40:40,080 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:40:40,080 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:40:40,080 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:40:40,080 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:40:40,081 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:40:40,081 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:40:40,081 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:40:40,081 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_9c57eb2b-765d-4081-b865-346931892d14/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b2cae6d498f7aa4576ffcfd28b3f955c7840001d7c2abb7c90b6970c97881d1 [2021-11-19 14:40:40,435 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:40:40,456 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:40:40,458 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:40:40,460 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:40:40,460 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:40:40,462 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i [2021-11-19 14:40:40,521 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/data/bf60821b0/0eb483ef09c944e8be7e9019d29c5fd8/FLAG1969d65de [2021-11-19 14:40:41,479 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:40:41,480 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i [2021-11-19 14:40:41,549 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/data/bf60821b0/0eb483ef09c944e8be7e9019d29c5fd8/FLAG1969d65de [2021-11-19 14:40:41,870 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/data/bf60821b0/0eb483ef09c944e8be7e9019d29c5fd8 [2021-11-19 14:40:41,872 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:40:41,875 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:40:41,877 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:40:41,877 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:40:41,880 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:40:41,881 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:40:41" (1/1) ... [2021-11-19 14:40:41,882 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c1a1475 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:41, skipping insertion in model container [2021-11-19 14:40:41,883 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:40:41" (1/1) ... [2021-11-19 14:40:41,890 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:40:42,055 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:40:44,733 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_9c57eb2b-765d-4081-b865-346931892d14/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[314801,314814] [2021-11-19 14:40:44,737 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_9c57eb2b-765d-4081-b865-346931892d14/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[314970,314983] [2021-11-19 14:40:44,737 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_9c57eb2b-765d-4081-b865-346931892d14/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[315137,315150] [2021-11-19 14:40:44,738 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_9c57eb2b-765d-4081-b865-346931892d14/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[315305,315318] [2021-11-19 14:40:44,763 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:40:44,815 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:40:44,924 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:40:45,360 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_9c57eb2b-765d-4081-b865-346931892d14/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[314801,314814] [2021-11-19 14:40:45,360 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_9c57eb2b-765d-4081-b865-346931892d14/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[314970,314983] [2021-11-19 14:40:45,361 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_9c57eb2b-765d-4081-b865-346931892d14/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[315137,315150] [2021-11-19 14:40:45,361 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_9c57eb2b-765d-4081-b865-346931892d14/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[315305,315318] [2021-11-19 14:40:45,369 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:40:45,418 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:40:45,861 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_9c57eb2b-765d-4081-b865-346931892d14/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[314801,314814] [2021-11-19 14:40:45,861 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_9c57eb2b-765d-4081-b865-346931892d14/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[314970,314983] [2021-11-19 14:40:45,862 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_9c57eb2b-765d-4081-b865-346931892d14/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[315137,315150] [2021-11-19 14:40:45,863 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_9c57eb2b-765d-4081-b865-346931892d14/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[315305,315318] [2021-11-19 14:40:45,873 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:40:46,113 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:40:46,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:46 WrapperNode [2021-11-19 14:40:46,115 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:40:46,120 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:40:46,121 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:40:46,121 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:40:46,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:46" (1/1) ... [2021-11-19 14:40:46,277 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:46" (1/1) ... [2021-11-19 14:40:46,477 INFO L137 Inliner]: procedures = 405, calls = 1784, calls flagged for inlining = 177, calls inlined = 156, statements flattened = 4040 [2021-11-19 14:40:46,478 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:40:46,481 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:40:46,481 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:40:46,482 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:40:46,491 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:46" (1/1) ... [2021-11-19 14:40:46,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:46" (1/1) ... [2021-11-19 14:40:46,531 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:46" (1/1) ... [2021-11-19 14:40:46,531 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:46" (1/1) ... [2021-11-19 14:40:46,740 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:46" (1/1) ... [2021-11-19 14:40:46,762 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:46" (1/1) ... [2021-11-19 14:40:46,788 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:46" (1/1) ... [2021-11-19 14:40:46,824 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:40:46,825 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:40:46,825 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:40:46,825 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:40:46,826 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:46" (1/1) ... [2021-11-19 14:40:46,834 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:40:46,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:40:46,867 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:40:46,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:40:46,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 14:40:46,928 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 14:40:46,928 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-19 14:40:46,928 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-19 14:40:46,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 14:40:46,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 14:40:46,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 14:40:46,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 14:40:46,929 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-19 14:40:46,929 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-19 14:40:46,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_66 [2021-11-19 14:40:46,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_66 [2021-11-19 14:40:46,930 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2021-11-19 14:40:46,930 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2021-11-19 14:40:46,930 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_open [2021-11-19 14:40:46,930 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_open [2021-11-19 14:40:46,931 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-19 14:40:46,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-19 14:40:46,931 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_load_eeprom [2021-11-19 14:40:46,931 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_load_eeprom [2021-11-19 14:40:46,931 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-19 14:40:46,932 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_sense_lan [2021-11-19 14:40:46,932 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_sense_lan [2021-11-19 14:40:46,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 14:40:46,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 14:40:46,932 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2021-11-19 14:40:46,933 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2021-11-19 14:40:46,933 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-19 14:40:46,933 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-19 14:40:46,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 14:40:46,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 14:40:46,934 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-19 14:40:46,934 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-19 14:40:46,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:40:46,935 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-19 14:40:46,935 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-19 14:40:46,935 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2021-11-19 14:40:46,935 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2021-11-19 14:40:46,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:40:46,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 14:40:46,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 14:40:46,937 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-19 14:40:46,937 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-19 14:40:46,938 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_cascade_reset [2021-11-19 14:40:46,938 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_cascade_reset [2021-11-19 14:40:46,939 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-19 14:40:46,939 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-19 14:40:46,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 14:40:46,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 14:40:46,939 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-19 14:40:46,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-19 14:40:46,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-19 14:40:46,941 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-19 14:40:46,941 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_rx_bm [2021-11-19 14:40:46,941 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_rx_bm [2021-11-19 14:40:46,941 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_BM_shutdown [2021-11-19 14:40:46,941 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_BM_shutdown [2021-11-19 14:40:46,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-19 14:40:46,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-19 14:40:46,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-19 14:40:46,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-19 14:40:46,943 INFO L130 BoogieDeclarations]: Found specification of procedure wait [2021-11-19 14:40:46,943 INFO L138 BoogieDeclarations]: Found implementation of procedure wait [2021-11-19 14:40:46,944 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-19 14:40:46,944 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-19 14:40:46,944 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_hwinit [2021-11-19 14:40:46,944 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_hwinit [2021-11-19 14:40:46,945 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-19 14:40:46,945 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-19 14:40:46,945 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_whatever [2021-11-19 14:40:46,945 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_whatever [2021-11-19 14:40:46,945 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_close [2021-11-19 14:40:46,945 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_close [2021-11-19 14:40:46,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-19 14:40:46,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-19 14:40:46,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:40:46,947 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_stop_interface [2021-11-19 14:40:46,947 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_stop_interface [2021-11-19 14:40:46,947 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_check_lan [2021-11-19 14:40:46,948 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_check_lan [2021-11-19 14:40:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-19 14:40:46,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-19 14:40:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:40:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 14:40:46,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 14:40:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-19 14:40:46,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-19 14:40:46,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 14:40:46,950 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-19 14:40:46,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 14:40:46,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 14:40:46,951 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 14:40:46,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 14:40:46,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 14:40:46,951 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-19 14:40:46,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-19 14:40:46,952 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_rxfill [2021-11-19 14:40:46,952 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_rxfill [2021-11-19 14:40:46,953 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-19 14:40:46,953 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-19 14:40:46,953 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-19 14:40:46,953 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-19 14:40:46,955 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-19 14:40:46,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-19 14:40:46,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 14:40:46,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:40:46,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:40:46,959 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_update_stats [2021-11-19 14:40:46,961 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_update_stats [2021-11-19 14:40:46,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 14:40:46,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 14:40:46,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 14:40:46,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 14:40:46,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 14:40:46,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 14:40:46,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 14:40:46,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 14:40:46,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 14:40:46,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 14:40:46,970 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-19 14:40:46,970 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-19 14:40:46,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 14:40:46,970 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 14:40:46,970 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-19 14:40:46,971 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-19 14:40:46,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:40:46,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 14:40:46,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 14:40:46,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 14:40:46,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 14:40:46,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 14:40:46,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 14:40:46,972 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2021-11-19 14:40:46,972 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2021-11-19 14:40:46,972 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-19 14:40:46,972 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-19 14:40:46,973 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-11-19 14:40:46,973 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-11-19 14:40:46,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 14:40:46,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 14:40:46,973 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2021-11-19 14:40:46,973 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2021-11-19 14:40:46,974 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_pci_remove [2021-11-19 14:40:46,974 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_pci_remove [2021-11-19 14:40:46,974 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_build_rx_pdl [2021-11-19 14:40:46,974 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_build_rx_pdl [2021-11-19 14:40:46,974 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-19 14:40:46,974 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-19 14:40:46,975 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-19 14:40:46,975 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-19 14:40:46,975 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 14:40:46,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 14:40:46,975 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-11-19 14:40:46,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-11-19 14:40:46,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_hp100_private [2021-11-19 14:40:46,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_hp100_private [2021-11-19 14:40:46,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 14:40:46,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 14:40:46,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 14:40:46,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 14:40:46,977 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2021-11-19 14:40:46,977 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2021-11-19 14:40:46,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 14:40:46,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 14:40:46,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_hp100_private [2021-11-19 14:40:46,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_hp100_private [2021-11-19 14:40:46,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_80 [2021-11-19 14:40:46,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_80 [2021-11-19 14:40:46,978 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2021-11-19 14:40:46,979 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2021-11-19 14:40:46,979 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-19 14:40:46,979 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-19 14:40:46,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 14:40:46,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 14:40:46,979 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_set_multicast_list [2021-11-19 14:40:46,980 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_set_multicast_list [2021-11-19 14:40:46,980 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_start_interface [2021-11-19 14:40:46,980 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_start_interface [2021-11-19 14:40:46,980 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-11-19 14:40:46,980 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-11-19 14:40:46,980 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_clean_txring [2021-11-19 14:40:46,981 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_clean_txring [2021-11-19 14:40:46,981 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2021-11-19 14:40:46,981 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2021-11-19 14:40:46,981 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2021-11-19 14:40:46,981 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2021-11-19 14:40:46,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-19 14:40:46,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-19 14:40:46,982 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_login_to_vg_hub [2021-11-19 14:40:46,982 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_login_to_vg_hub [2021-11-19 14:40:46,982 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2021-11-19 14:40:46,982 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2021-11-19 14:40:47,869 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:40:47,875 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:40:50,728 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 14:41:10,339 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-19 14:41:10,340 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-19 14:41:10,841 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L8563: SUMMARY for call #t~ret679#1 := schedule_timeout_interruptible(1bv64); srcloc: null [2021-11-19 14:41:10,841 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L8563-1: havoc #t~ret679#1; [2021-11-19 14:41:10,842 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume 0bv64 == ~bvand64(2096896bv64, ~sign_extendFrom32To64(~tmp___4~7#1)); [2021-11-19 14:41:10,842 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume !(0bv64 == ~bvand64(2096896bv64, ~sign_extendFrom32To64(~tmp___4~7#1))); [2021-11-19 14:41:10,842 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L8567: assume ~bvslt64(~bvsub64(~jiffies~0, ~time~2#1), 0bv64); [2021-11-19 14:41:10,842 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L8567: assume !~bvslt64(~bvsub64(~jiffies~0, ~time~2#1), 0bv64); [2021-11-19 14:41:10,911 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:41:10,930 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:41:10,931 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-19 14:41:10,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:41:10 BoogieIcfgContainer [2021-11-19 14:41:10,937 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:41:10,939 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:41:10,939 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:41:10,942 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:41:10,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:40:41" (1/3) ... [2021-11-19 14:41:10,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53b74fd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:41:10, skipping insertion in model container [2021-11-19 14:41:10,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:46" (2/3) ... [2021-11-19 14:41:10,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53b74fd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:41:10, skipping insertion in model container [2021-11-19 14:41:10,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:41:10" (3/3) ... [2021-11-19 14:41:10,946 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i [2021-11-19 14:41:10,952 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:41:10,952 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-19 14:41:11,023 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:41:11,030 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 14:41:11,031 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-19 14:41:11,099 INFO L276 IsEmpty]: Start isEmpty. Operand has 1742 states, 1093 states have (on average 1.2909423604757548) internal successors, (1411), 1143 states have internal predecessors, (1411), 568 states have call successors, (568), 80 states have call predecessors, (568), 79 states have return successors, (563), 547 states have call predecessors, (563), 563 states have call successors, (563) [2021-11-19 14:41:11,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-19 14:41:11,111 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:41:11,112 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:41:11,112 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 14:41:11,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:41:11,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1717419952, now seen corresponding path program 1 times [2021-11-19 14:41:11,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:41:11,137 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1265933113] [2021-11-19 14:41:11,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:41:11,139 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:41:11,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:41:11,143 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:41:11,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:41:12,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:41:12,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 935 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:41:12,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:41:12,709 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-11-19 14:41:12,710 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:41:12,950 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-11-19 14:41:12,951 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:41:12,951 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1265933113] [2021-11-19 14:41:12,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1265933113] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:41:12,952 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:41:12,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:41:12,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138652521] [2021-11-19 14:41:12,956 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:41:12,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:41:12,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:41:13,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:41:13,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:41:13,010 INFO L87 Difference]: Start difference. First operand has 1742 states, 1093 states have (on average 1.2909423604757548) internal successors, (1411), 1143 states have internal predecessors, (1411), 568 states have call successors, (568), 80 states have call predecessors, (568), 79 states have return successors, (563), 547 states have call predecessors, (563), 563 states have call successors, (563) Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 4 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2021-11-19 14:41:18,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:41:18,533 INFO L93 Difference]: Finished difference Result 6788 states and 10175 transitions. [2021-11-19 14:41:18,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:41:18,536 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 4 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 68 [2021-11-19 14:41:18,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:41:18,629 INFO L225 Difference]: With dead ends: 6788 [2021-11-19 14:41:18,629 INFO L226 Difference]: Without dead ends: 5042 [2021-11-19 14:41:18,667 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 132 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 14:41:18,674 INFO L933 BasicCegarLoop]: 3634 mSDtfsCounter, 4902 mSDsluCounter, 6213 mSDsCounter, 0 mSdLazyCounter, 1129 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4902 SdHoareTripleChecker+Valid, 9847 SdHoareTripleChecker+Invalid, 1137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2021-11-19 14:41:18,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4902 Valid, 9847 Invalid, 1137 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 1129 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2021-11-19 14:41:18,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5042 states. [2021-11-19 14:41:19,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5042 to 5016. [2021-11-19 14:41:19,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5016 states, 3153 states have (on average 1.2835394862036156) internal successors, (4047), 3295 states have internal predecessors, (4047), 1628 states have call successors, (1628), 233 states have call predecessors, (1628), 232 states have return successors, (1625), 1577 states have call predecessors, (1625), 1625 states have call successors, (1625) [2021-11-19 14:41:19,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5016 states to 5016 states and 7300 transitions. [2021-11-19 14:41:19,405 INFO L78 Accepts]: Start accepts. Automaton has 5016 states and 7300 transitions. Word has length 68 [2021-11-19 14:41:19,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:41:19,408 INFO L470 AbstractCegarLoop]: Abstraction has 5016 states and 7300 transitions. [2021-11-19 14:41:19,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 4 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2021-11-19 14:41:19,408 INFO L276 IsEmpty]: Start isEmpty. Operand 5016 states and 7300 transitions. [2021-11-19 14:41:19,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-19 14:41:19,424 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:41:19,425 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:41:19,457 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:41:19,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:41:19,645 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 14:41:19,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:41:19,646 INFO L85 PathProgramCache]: Analyzing trace with hash -921724840, now seen corresponding path program 1 times [2021-11-19 14:41:19,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:41:19,649 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1457147467] [2021-11-19 14:41:19,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:41:19,649 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:41:19,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:41:19,652 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:41:19,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:41:20,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:41:20,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 970 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:41:20,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:41:21,108 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-11-19 14:41:21,109 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:41:21,352 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-11-19 14:41:21,352 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:41:21,353 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1457147467] [2021-11-19 14:41:21,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1457147467] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:41:21,353 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:41:21,353 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:41:21,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904189426] [2021-11-19 14:41:21,354 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:41:21,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:41:21,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:41:21,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:41:21,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:41:21,357 INFO L87 Difference]: Start difference. First operand 5016 states and 7300 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 4 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2021-11-19 14:41:29,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:41:29,370 INFO L93 Difference]: Finished difference Result 18711 states and 27376 transitions. [2021-11-19 14:41:29,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:41:29,371 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 4 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 73 [2021-11-19 14:41:29,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:41:29,533 INFO L225 Difference]: With dead ends: 18711 [2021-11-19 14:41:29,533 INFO L226 Difference]: Without dead ends: 13708 [2021-11-19 14:41:29,574 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 142 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 14:41:29,575 INFO L933 BasicCegarLoop]: 3835 mSDtfsCounter, 5608 mSDsluCounter, 3613 mSDsCounter, 0 mSdLazyCounter, 1032 mSolverCounterSat, 1043 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5608 SdHoareTripleChecker+Valid, 7448 SdHoareTripleChecker+Invalid, 2075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1043 IncrementalHoareTripleChecker+Valid, 1032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2021-11-19 14:41:29,581 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5608 Valid, 7448 Invalid, 2075 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1043 Valid, 1032 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2021-11-19 14:41:29,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13708 states. [2021-11-19 14:41:30,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13708 to 13634. [2021-11-19 14:41:30,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13634 states, 8485 states have (on average 1.2875662934590453) internal successors, (10925), 8889 states have internal predecessors, (10925), 4512 states have call successors, (4512), 647 states have call predecessors, (4512), 634 states have return successors, (4551), 4331 states have call predecessors, (4551), 4509 states have call successors, (4551) [2021-11-19 14:41:30,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13634 states to 13634 states and 19988 transitions. [2021-11-19 14:41:30,990 INFO L78 Accepts]: Start accepts. Automaton has 13634 states and 19988 transitions. Word has length 73 [2021-11-19 14:41:30,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:41:30,991 INFO L470 AbstractCegarLoop]: Abstraction has 13634 states and 19988 transitions. [2021-11-19 14:41:30,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 4 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2021-11-19 14:41:30,992 INFO L276 IsEmpty]: Start isEmpty. Operand 13634 states and 19988 transitions. [2021-11-19 14:41:30,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-19 14:41:30,994 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:41:30,995 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:41:31,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:41:31,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:41:31,217 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 14:41:31,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:41:31,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1162608596, now seen corresponding path program 1 times [2021-11-19 14:41:31,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:41:31,220 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [597390205] [2021-11-19 14:41:31,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:41:31,221 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:41:31,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:41:31,222 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:41:31,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:41:32,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:41:32,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 967 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:41:32,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:41:32,529 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-11-19 14:41:32,529 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:41:32,801 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-11-19 14:41:32,802 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:41:32,802 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [597390205] [2021-11-19 14:41:32,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [597390205] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:41:32,803 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:41:32,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:41:32,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975648054] [2021-11-19 14:41:32,803 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:41:32,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:41:32,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:41:32,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:41:32,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:41:32,806 INFO L87 Difference]: Start difference. First operand 13634 states and 19988 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-11-19 14:41:34,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:41:34,602 INFO L93 Difference]: Finished difference Result 39451 states and 57821 transitions. [2021-11-19 14:41:34,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:41:34,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 76 [2021-11-19 14:41:34,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:41:34,882 INFO L225 Difference]: With dead ends: 39451 [2021-11-19 14:41:34,882 INFO L226 Difference]: Without dead ends: 25830 [2021-11-19 14:41:34,993 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 149 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 14:41:34,999 INFO L933 BasicCegarLoop]: 3024 mSDtfsCounter, 2257 mSDsluCounter, 2434 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2257 SdHoareTripleChecker+Valid, 5458 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:41:35,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2257 Valid, 5458 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 14:41:35,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25830 states. [2021-11-19 14:41:37,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25830 to 25787. [2021-11-19 14:41:37,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25787 states, 15985 states have (on average 1.2845792930872693) internal successors, (20534), 16758 states have internal predecessors, (20534), 8568 states have call successors, (8568), 1259 states have call predecessors, (8568), 1231 states have return successors, (8652), 8210 states have call predecessors, (8652), 8565 states have call successors, (8652) [2021-11-19 14:41:37,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25787 states to 25787 states and 37754 transitions. [2021-11-19 14:41:37,573 INFO L78 Accepts]: Start accepts. Automaton has 25787 states and 37754 transitions. Word has length 76 [2021-11-19 14:41:37,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:41:37,574 INFO L470 AbstractCegarLoop]: Abstraction has 25787 states and 37754 transitions. [2021-11-19 14:41:37,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-11-19 14:41:37,575 INFO L276 IsEmpty]: Start isEmpty. Operand 25787 states and 37754 transitions. [2021-11-19 14:41:37,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-19 14:41:37,576 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:41:37,577 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:41:37,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:41:37,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:41:37,793 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 14:41:37,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:41:37,794 INFO L85 PathProgramCache]: Analyzing trace with hash 613531495, now seen corresponding path program 1 times [2021-11-19 14:41:37,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:41:37,796 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [179388612] [2021-11-19 14:41:37,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:41:37,797 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:41:37,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:41:37,801 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:41:37,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:41:38,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:41:38,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 1016 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:41:38,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:41:39,048 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-11-19 14:41:39,049 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:41:39,312 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-11-19 14:41:39,313 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:41:39,313 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [179388612] [2021-11-19 14:41:39,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [179388612] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:41:39,313 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:41:39,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:41:39,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999208613] [2021-11-19 14:41:39,314 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:41:39,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:41:39,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:41:39,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:41:39,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:41:39,315 INFO L87 Difference]: Start difference. First operand 25787 states and 37754 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 4 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2021-11-19 14:41:47,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:41:47,433 INFO L93 Difference]: Finished difference Result 58437 states and 85108 transitions. [2021-11-19 14:41:47,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:41:47,434 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 4 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 79 [2021-11-19 14:41:47,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:41:47,721 INFO L225 Difference]: With dead ends: 58437 [2021-11-19 14:41:47,722 INFO L226 Difference]: Without dead ends: 32663 [2021-11-19 14:41:47,834 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 154 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 14:41:47,837 INFO L933 BasicCegarLoop]: 3945 mSDtfsCounter, 4257 mSDsluCounter, 2910 mSDsCounter, 0 mSdLazyCounter, 1198 mSolverCounterSat, 497 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4257 SdHoareTripleChecker+Valid, 6855 SdHoareTripleChecker+Invalid, 1695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 497 IncrementalHoareTripleChecker+Valid, 1198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2021-11-19 14:41:47,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4257 Valid, 6855 Invalid, 1695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [497 Valid, 1198 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2021-11-19 14:41:47,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32663 states. [2021-11-19 14:41:50,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32663 to 32603. [2021-11-19 14:41:50,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32603 states, 20326 states have (on average 1.2764931614680703) internal successors, (25946), 21296 states have internal predecessors, (25946), 10537 states have call successors, (10537), 1774 states have call predecessors, (10537), 1737 states have return successors, (10592), 10120 states have call predecessors, (10592), 10534 states have call successors, (10592) [2021-11-19 14:41:50,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32603 states to 32603 states and 47075 transitions. [2021-11-19 14:41:50,875 INFO L78 Accepts]: Start accepts. Automaton has 32603 states and 47075 transitions. Word has length 79 [2021-11-19 14:41:50,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:41:50,876 INFO L470 AbstractCegarLoop]: Abstraction has 32603 states and 47075 transitions. [2021-11-19 14:41:50,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 4 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2021-11-19 14:41:50,877 INFO L276 IsEmpty]: Start isEmpty. Operand 32603 states and 47075 transitions. [2021-11-19 14:41:50,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-19 14:41:50,885 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:41:50,886 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:41:50,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:41:51,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:41:51,113 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:41:51,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:41:51,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1278127114, now seen corresponding path program 1 times [2021-11-19 14:41:51,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:41:51,116 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [825111082] [2021-11-19 14:41:51,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:41:51,116 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:41:51,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:41:51,118 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:41:51,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:41:52,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:41:52,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:41:52,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:41:52,551 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2021-11-19 14:41:52,551 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:41:52,860 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-11-19 14:41:52,860 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:41:52,860 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [825111082] [2021-11-19 14:41:52,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [825111082] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:41:52,861 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:41:52,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:41:52,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323487245] [2021-11-19 14:41:52,861 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:41:52,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:41:52,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:41:52,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:41:52,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:41:52,863 INFO L87 Difference]: Start difference. First operand 32603 states and 47075 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-19 14:41:54,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:41:54,499 INFO L93 Difference]: Finished difference Result 65152 states and 94088 transitions. [2021-11-19 14:41:54,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:41:54,500 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 107 [2021-11-19 14:41:54,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:41:54,743 INFO L225 Difference]: With dead ends: 65152 [2021-11-19 14:41:54,743 INFO L226 Difference]: Without dead ends: 32603 [2021-11-19 14:41:55,193 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 211 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 14:41:55,194 INFO L933 BasicCegarLoop]: 2503 mSDtfsCounter, 11 mSDsluCounter, 2484 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 4987 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:41:55,195 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 4987 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:41:55,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32603 states. [2021-11-19 14:41:57,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32603 to 32603. [2021-11-19 14:41:57,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32603 states, 20326 states have (on average 1.2756075961822297) internal successors, (25928), 21296 states have internal predecessors, (25928), 10537 states have call successors, (10537), 1774 states have call predecessors, (10537), 1737 states have return successors, (10592), 10120 states have call predecessors, (10592), 10534 states have call successors, (10592) [2021-11-19 14:41:58,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32603 states to 32603 states and 47057 transitions. [2021-11-19 14:41:58,221 INFO L78 Accepts]: Start accepts. Automaton has 32603 states and 47057 transitions. Word has length 107 [2021-11-19 14:41:58,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:41:58,222 INFO L470 AbstractCegarLoop]: Abstraction has 32603 states and 47057 transitions. [2021-11-19 14:41:58,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-19 14:41:58,223 INFO L276 IsEmpty]: Start isEmpty. Operand 32603 states and 47057 transitions. [2021-11-19 14:41:58,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-19 14:41:58,227 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:41:58,227 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 4, 4, 4, 4, 4, 4, 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] [2021-11-19 14:41:58,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:41:58,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:41:58,453 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 14:41:58,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:41:58,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1676722497, now seen corresponding path program 1 times [2021-11-19 14:41:58,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:41:58,456 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [332630420] [2021-11-19 14:41:58,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:41:58,456 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:41:58,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:41:58,459 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:41:58,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 14:41:59,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:41:59,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 1060 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:41:59,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:42:00,208 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-11-19 14:42:00,209 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:42:00,750 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-11-19 14:42:00,751 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:42:00,751 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [332630420] [2021-11-19 14:42:00,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [332630420] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:42:00,751 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:42:00,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-19 14:42:00,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051296361] [2021-11-19 14:42:00,752 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:42:00,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:42:00,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:42:00,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:42:00,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:42:00,754 INFO L87 Difference]: Start difference. First operand 32603 states and 47057 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, (29), 4 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-19 14:42:02,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:42:02,613 INFO L93 Difference]: Finished difference Result 32609 states and 47062 transitions. [2021-11-19 14:42:02,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:42:02,614 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, (29), 4 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 123 [2021-11-19 14:42:02,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:42:02,946 INFO L225 Difference]: With dead ends: 32609 [2021-11-19 14:42:02,946 INFO L226 Difference]: Without dead ends: 32607 [2021-11-19 14:42:02,962 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:42:02,964 INFO L933 BasicCegarLoop]: 2501 mSDtfsCounter, 2430 mSDsluCounter, 9979 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2441 SdHoareTripleChecker+Valid, 12480 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:42:02,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2441 Valid, 12480 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:42:03,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32607 states. [2021-11-19 14:42:05,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32607 to 32607. [2021-11-19 14:42:05,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32607 states, 20329 states have (on average 1.2755669240985783) internal successors, (25931), 21299 states have internal predecessors, (25931), 10537 states have call successors, (10537), 1775 states have call predecessors, (10537), 1738 states have return successors, (10592), 10120 states have call predecessors, (10592), 10534 states have call successors, (10592) [2021-11-19 14:42:05,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32607 states to 32607 states and 47060 transitions. [2021-11-19 14:42:05,614 INFO L78 Accepts]: Start accepts. Automaton has 32607 states and 47060 transitions. Word has length 123 [2021-11-19 14:42:05,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:42:05,615 INFO L470 AbstractCegarLoop]: Abstraction has 32607 states and 47060 transitions. [2021-11-19 14:42:05,615 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, (29), 4 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-19 14:42:05,616 INFO L276 IsEmpty]: Start isEmpty. Operand 32607 states and 47060 transitions. [2021-11-19 14:42:05,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-19 14:42:05,618 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:42:05,619 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 4, 4, 4, 4, 4, 4, 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] [2021-11-19 14:42:05,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 14:42:05,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:42:05,833 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 14:42:05,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:42:05,834 INFO L85 PathProgramCache]: Analyzing trace with hash 386269533, now seen corresponding path program 1 times [2021-11-19 14:42:05,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:42:05,835 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [549337376] [2021-11-19 14:42:05,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:42:05,836 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:42:05,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:42:05,837 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:42:05,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 14:42:06,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:42:06,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 1067 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:42:06,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:42:07,572 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-11-19 14:42:07,573 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:42:08,107 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-11-19 14:42:08,107 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:42:08,107 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [549337376] [2021-11-19 14:42:08,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [549337376] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:42:08,108 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:42:08,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 14:42:08,108 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921450150] [2021-11-19 14:42:08,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:42:08,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:42:08,109 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:42:08,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:42:08,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:42:08,110 INFO L87 Difference]: Start difference. First operand 32607 states and 47060 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, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-19 14:42:10,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:42:10,247 INFO L93 Difference]: Finished difference Result 32613 states and 47065 transitions. [2021-11-19 14:42:10,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:42:10,247 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, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 128 [2021-11-19 14:42:10,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:42:10,362 INFO L225 Difference]: With dead ends: 32613 [2021-11-19 14:42:10,363 INFO L226 Difference]: Without dead ends: 32611 [2021-11-19 14:42:10,373 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:42:10,375 INFO L933 BasicCegarLoop]: 2504 mSDtfsCounter, 2452 mSDsluCounter, 4989 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2462 SdHoareTripleChecker+Valid, 7493 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:42:10,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2462 Valid, 7493 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:42:10,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32611 states. [2021-11-19 14:42:12,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32611 to 32611. [2021-11-19 14:42:12,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32611 states, 20332 states have (on average 1.2755262640173126) internal successors, (25934), 21302 states have internal predecessors, (25934), 10537 states have call successors, (10537), 1776 states have call predecessors, (10537), 1739 states have return successors, (10592), 10120 states have call predecessors, (10592), 10534 states have call successors, (10592) [2021-11-19 14:42:12,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32611 states to 32611 states and 47063 transitions. [2021-11-19 14:42:12,467 INFO L78 Accepts]: Start accepts. Automaton has 32611 states and 47063 transitions. Word has length 128 [2021-11-19 14:42:12,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:42:12,468 INFO L470 AbstractCegarLoop]: Abstraction has 32611 states and 47063 transitions. [2021-11-19 14:42:12,468 INFO L471 AbstractCegarLoop]: INTERPOLANT 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, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-19 14:42:12,468 INFO L276 IsEmpty]: Start isEmpty. Operand 32611 states and 47063 transitions. [2021-11-19 14:42:12,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-19 14:42:12,471 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:42:12,471 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:42:12,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 14:42:12,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:42:12,672 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:42:12,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:42:12,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1864206977, now seen corresponding path program 1 times [2021-11-19 14:42:12,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:42:12,674 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [577414841] [2021-11-19 14:42:12,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:42:12,675 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:42:12,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:42:12,676 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:42:12,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 14:42:13,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:42:13,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 1074 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:42:13,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:42:14,311 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2021-11-19 14:42:14,312 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:42:14,849 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2021-11-19 14:42:14,849 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:42:14,849 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [577414841] [2021-11-19 14:42:14,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [577414841] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:42:14,849 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:42:14,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 14:42:14,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097189750] [2021-11-19 14:42:14,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:42:14,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:42:14,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:42:14,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:42:14,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:42:14,851 INFO L87 Difference]: Start difference. First operand 32611 states and 47063 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, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-19 14:42:16,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:42:16,535 INFO L93 Difference]: Finished difference Result 32617 states and 47068 transitions. [2021-11-19 14:42:16,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:42:16,536 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, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 133 [2021-11-19 14:42:16,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:42:16,693 INFO L225 Difference]: With dead ends: 32617 [2021-11-19 14:42:16,693 INFO L226 Difference]: Without dead ends: 32615 [2021-11-19 14:42:16,711 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:42:16,712 INFO L933 BasicCegarLoop]: 2504 mSDtfsCounter, 2452 mSDsluCounter, 4989 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2461 SdHoareTripleChecker+Valid, 7493 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:42:16,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2461 Valid, 7493 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:42:16,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32615 states. [2021-11-19 14:42:18,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32615 to 32615. [2021-11-19 14:42:18,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32615 states, 20335 states have (on average 1.2754856159331203) internal successors, (25937), 21305 states have internal predecessors, (25937), 10537 states have call successors, (10537), 1777 states have call predecessors, (10537), 1740 states have return successors, (10592), 10120 states have call predecessors, (10592), 10534 states have call successors, (10592) [2021-11-19 14:42:18,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32615 states to 32615 states and 47066 transitions. [2021-11-19 14:42:18,891 INFO L78 Accepts]: Start accepts. Automaton has 32615 states and 47066 transitions. Word has length 133 [2021-11-19 14:42:18,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:42:18,892 INFO L470 AbstractCegarLoop]: Abstraction has 32615 states and 47066 transitions. [2021-11-19 14:42:18,892 INFO L471 AbstractCegarLoop]: INTERPOLANT 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, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-19 14:42:18,892 INFO L276 IsEmpty]: Start isEmpty. Operand 32615 states and 47066 transitions. [2021-11-19 14:42:18,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-19 14:42:18,895 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:42:18,896 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:42:18,918 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-19 14:42:19,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:42:19,097 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:42:19,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:42:19,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1830867043, now seen corresponding path program 1 times [2021-11-19 14:42:19,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:42:19,099 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1651171465] [2021-11-19 14:42:19,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:42:19,099 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:42:19,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:42:19,101 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:42:19,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 14:42:19,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:42:19,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 1081 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:42:19,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:42:20,769 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2021-11-19 14:42:20,769 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:42:21,392 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2021-11-19 14:42:21,393 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:42:21,393 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1651171465] [2021-11-19 14:42:21,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1651171465] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:42:21,393 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:42:21,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 14:42:21,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029044345] [2021-11-19 14:42:21,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:42:21,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:42:21,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:42:21,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:42:21,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:42:21,395 INFO L87 Difference]: Start difference. First operand 32615 states and 47066 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, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-19 14:42:23,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:42:23,303 INFO L93 Difference]: Finished difference Result 32621 states and 47071 transitions. [2021-11-19 14:42:23,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:42:23,304 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, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 138 [2021-11-19 14:42:23,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:42:23,444 INFO L225 Difference]: With dead ends: 32621 [2021-11-19 14:42:23,445 INFO L226 Difference]: Without dead ends: 32619 [2021-11-19 14:42:23,460 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:42:23,461 INFO L933 BasicCegarLoop]: 2504 mSDtfsCounter, 2452 mSDsluCounter, 4989 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2460 SdHoareTripleChecker+Valid, 7493 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:42:23,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2460 Valid, 7493 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:42:23,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32619 states. [2021-11-19 14:42:25,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32619 to 32619. [2021-11-19 14:42:25,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32619 states, 20338 states have (on average 1.2754449798406924) internal successors, (25940), 21308 states have internal predecessors, (25940), 10537 states have call successors, (10537), 1778 states have call predecessors, (10537), 1741 states have return successors, (10592), 10120 states have call predecessors, (10592), 10534 states have call successors, (10592) [2021-11-19 14:42:25,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32619 states to 32619 states and 47069 transitions. [2021-11-19 14:42:25,976 INFO L78 Accepts]: Start accepts. Automaton has 32619 states and 47069 transitions. Word has length 138 [2021-11-19 14:42:25,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:42:25,977 INFO L470 AbstractCegarLoop]: Abstraction has 32619 states and 47069 transitions. [2021-11-19 14:42:25,977 INFO L471 AbstractCegarLoop]: INTERPOLANT 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, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-19 14:42:25,977 INFO L276 IsEmpty]: Start isEmpty. Operand 32619 states and 47069 transitions. [2021-11-19 14:42:25,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-11-19 14:42:25,983 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:42:25,983 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1] [2021-11-19 14:42:26,013 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-11-19 14:42:26,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:42:26,209 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:42:26,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:42:26,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1598124993, now seen corresponding path program 1 times [2021-11-19 14:42:26,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:42:26,211 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [290830065] [2021-11-19 14:42:26,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:42:26,211 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:42:26,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:42:26,212 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:42:26,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-19 14:42:27,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:42:27,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 1088 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:42:27,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:42:27,899 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2021-11-19 14:42:27,899 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:42:28,501 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2021-11-19 14:42:28,501 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:42:28,501 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [290830065] [2021-11-19 14:42:28,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [290830065] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:42:28,502 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:42:28,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 14:42:28,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667783492] [2021-11-19 14:42:28,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:42:28,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:42:28,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:42:28,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:42:28,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:42:28,504 INFO L87 Difference]: Start difference. First operand 32619 states and 47069 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 14:42:30,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:42:30,420 INFO L93 Difference]: Finished difference Result 32625 states and 47074 transitions. [2021-11-19 14:42:30,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:42:30,421 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 143 [2021-11-19 14:42:30,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:42:30,540 INFO L225 Difference]: With dead ends: 32625 [2021-11-19 14:42:30,540 INFO L226 Difference]: Without dead ends: 32623 [2021-11-19 14:42:30,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:42:30,558 INFO L933 BasicCegarLoop]: 2504 mSDtfsCounter, 2452 mSDsluCounter, 4989 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2459 SdHoareTripleChecker+Valid, 7493 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:42:30,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2459 Valid, 7493 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:42:30,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32623 states. [2021-11-19 14:42:32,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32623 to 32623. [2021-11-19 14:42:32,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32623 states, 20341 states have (on average 1.275404355734723) internal successors, (25943), 21311 states have internal predecessors, (25943), 10537 states have call successors, (10537), 1779 states have call predecessors, (10537), 1742 states have return successors, (10592), 10120 states have call predecessors, (10592), 10534 states have call successors, (10592) [2021-11-19 14:42:33,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32623 states to 32623 states and 47072 transitions. [2021-11-19 14:42:33,055 INFO L78 Accepts]: Start accepts. Automaton has 32623 states and 47072 transitions. Word has length 143 [2021-11-19 14:42:33,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:42:33,056 INFO L470 AbstractCegarLoop]: Abstraction has 32623 states and 47072 transitions. [2021-11-19 14:42:33,056 INFO L471 AbstractCegarLoop]: INTERPOLANT 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) [2021-11-19 14:42:33,056 INFO L276 IsEmpty]: Start isEmpty. Operand 32623 states and 47072 transitions. [2021-11-19 14:42:33,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-19 14:42:33,061 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:42:33,061 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:42:33,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-19 14:42:33,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:42:33,282 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:42:33,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:42:33,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1211248754, now seen corresponding path program 1 times [2021-11-19 14:42:33,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:42:33,284 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [970464724] [2021-11-19 14:42:33,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:42:33,284 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:42:33,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:42:33,286 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:42:33,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-19 14:42:34,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:42:34,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 1144 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-19 14:42:34,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:42:35,410 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 88 proven. 3 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-19 14:42:35,410 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:42:36,622 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2021-11-19 14:42:36,622 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:42:36,622 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [970464724] [2021-11-19 14:42:36,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [970464724] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:42:36,623 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2009670689] [2021-11-19 14:42:36,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:42:36,623 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:42:36,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:42:36,626 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:42:36,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-11-19 14:42:37,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:42:37,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 1144 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:42:37,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:42:38,606 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2021-11-19 14:42:38,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:42:39,355 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2021-11-19 14:42:39,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2009670689] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:42:39,355 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-19 14:42:39,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [18, 18, 4] total 28 [2021-11-19 14:42:39,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194743378] [2021-11-19 14:42:39,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:42:39,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:42:39,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:42:39,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:42:39,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=683, Unknown=0, NotChecked=0, Total=756 [2021-11-19 14:42:39,357 INFO L87 Difference]: Start difference. First operand 32623 states and 47072 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-19 14:42:41,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:42:41,697 INFO L93 Difference]: Finished difference Result 32629 states and 47077 transitions. [2021-11-19 14:42:41,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:42:41,697 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 166 [2021-11-19 14:42:41,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:42:41,816 INFO L225 Difference]: With dead ends: 32629 [2021-11-19 14:42:41,817 INFO L226 Difference]: Without dead ends: 32627 [2021-11-19 14:42:41,830 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 663 GetRequests, 634 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=88, Invalid=842, Unknown=0, NotChecked=0, Total=930 [2021-11-19 14:42:41,831 INFO L933 BasicCegarLoop]: 2504 mSDtfsCounter, 2441 mSDsluCounter, 4989 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2447 SdHoareTripleChecker+Valid, 7493 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:42:41,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2447 Valid, 7493 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:42:41,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32627 states. [2021-11-19 14:42:44,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32627 to 32627. [2021-11-19 14:42:44,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32627 states, 20344 states have (on average 1.2753637436099095) internal successors, (25946), 21314 states have internal predecessors, (25946), 10537 states have call successors, (10537), 1780 states have call predecessors, (10537), 1743 states have return successors, (10592), 10120 states have call predecessors, (10592), 10534 states have call successors, (10592) [2021-11-19 14:42:44,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32627 states to 32627 states and 47075 transitions. [2021-11-19 14:42:44,269 INFO L78 Accepts]: Start accepts. Automaton has 32627 states and 47075 transitions. Word has length 166 [2021-11-19 14:42:44,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:42:44,270 INFO L470 AbstractCegarLoop]: Abstraction has 32627 states and 47075 transitions. [2021-11-19 14:42:44,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-19 14:42:44,271 INFO L276 IsEmpty]: Start isEmpty. Operand 32627 states and 47075 transitions. [2021-11-19 14:42:44,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-11-19 14:42:44,275 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:42:44,275 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 6, 6, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1] [2021-11-19 14:42:44,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2021-11-19 14:42:44,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-19 14:42:44,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:42:44,688 INFO L402 AbstractCegarLoop]: === Iteration 12 === 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 14:42:44,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:42:44,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1106541825, now seen corresponding path program 1 times [2021-11-19 14:42:44,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:42:44,689 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [320449673] [2021-11-19 14:42:44,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:42:44,690 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:42:44,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:42:44,691 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:42:44,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c57eb2b-765d-4081-b865-346931892d14/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-19 14:42:45,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:42:45,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 1102 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:42:45,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:42:46,387 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-19 14:42:46,387 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:42:47,009 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-19 14:42:47,009 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:42:47,009 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [320449673] [2021-11-19 14:42:47,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [320449673] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:42:47,010 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:42:47,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 14:42:47,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093305838] [2021-11-19 14:42:47,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:42:47,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:42:47,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:42:47,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:42:47,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:42:47,012 INFO L87 Difference]: Start difference. First operand 32627 states and 47075 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, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19)