./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/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_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/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_cbf51327-8ac7-45ed-b7f3-008b1263c77c/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 df4f0c8d40dc980084ec2f9936d9bc7fc71c78b40a0de276eef2539e9d717dce --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 15:44:31,746 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 15:44:31,749 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 15:44:31,799 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 15:44:31,800 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 15:44:31,801 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 15:44:31,803 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 15:44:31,806 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 15:44:31,808 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 15:44:31,809 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 15:44:31,811 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 15:44:31,812 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 15:44:31,813 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 15:44:31,814 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 15:44:31,816 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 15:44:31,818 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 15:44:31,820 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 15:44:31,821 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 15:44:31,823 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 15:44:31,826 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 15:44:31,828 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 15:44:31,830 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 15:44:31,832 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 15:44:31,833 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 15:44:31,837 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 15:44:31,837 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 15:44:31,838 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 15:44:31,839 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 15:44:31,840 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 15:44:31,841 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 15:44:31,846 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 15:44:31,847 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 15:44:31,848 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 15:44:31,849 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 15:44:31,850 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 15:44:31,851 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 15:44:31,852 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 15:44:31,852 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 15:44:31,853 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 15:44:31,854 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 15:44:31,855 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 15:44:31,856 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 15:44:31,881 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 15:44:31,882 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 15:44:31,883 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 15:44:31,883 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 15:44:31,883 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 15:44:31,884 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 15:44:31,884 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 15:44:31,884 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 15:44:31,884 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 15:44:31,885 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 15:44:31,885 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 15:44:31,885 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 15:44:31,885 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 15:44:31,886 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 15:44:31,886 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 15:44:31,886 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 15:44:31,887 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 15:44:31,888 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 15:44:31,888 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 15:44:31,888 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 15:44:31,888 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 15:44:31,889 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 15:44:31,889 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 15:44:31,889 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 15:44:31,889 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 15:44:31,890 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 15:44:31,890 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 15:44:31,890 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 15:44:31,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:44:31,891 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 15:44:31,891 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 15:44:31,891 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 15:44:31,892 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 15:44:31,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 15:44:31,892 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 15:44:31,893 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 15:44:31,893 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 15:44:31,893 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_cbf51327-8ac7-45ed-b7f3-008b1263c77c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df4f0c8d40dc980084ec2f9936d9bc7fc71c78b40a0de276eef2539e9d717dce [2021-11-19 15:44:32,194 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 15:44:32,225 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 15:44:32,228 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 15:44:32,230 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 15:44:32,231 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 15:44:32,232 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i [2021-11-19 15:44:32,310 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/data/c9bcb3377/6f20dccb325f421ba4e0ba7fb866fa87/FLAG7286c3ae1 [2021-11-19 15:44:33,394 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 15:44:33,395 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i [2021-11-19 15:44:33,463 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/data/c9bcb3377/6f20dccb325f421ba4e0ba7fb866fa87/FLAG7286c3ae1 [2021-11-19 15:44:33,764 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/data/c9bcb3377/6f20dccb325f421ba4e0ba7fb866fa87 [2021-11-19 15:44:33,767 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 15:44:33,768 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 15:44:33,770 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 15:44:33,770 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 15:44:33,773 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 15:44:33,774 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:44:33" (1/1) ... [2021-11-19 15:44:33,775 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17d73c2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:44:33, skipping insertion in model container [2021-11-19 15:44:33,775 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:44:33" (1/1) ... [2021-11-19 15:44:33,783 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 15:44:33,955 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:44:37,983 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_cbf51327-8ac7-45ed-b7f3-008b1263c77c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[415958,415971] [2021-11-19 15:44:37,986 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_cbf51327-8ac7-45ed-b7f3-008b1263c77c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[416127,416140] [2021-11-19 15:44:37,987 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_cbf51327-8ac7-45ed-b7f3-008b1263c77c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[416294,416307] [2021-11-19 15:44:37,988 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_cbf51327-8ac7-45ed-b7f3-008b1263c77c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[416462,416475] [2021-11-19 15:44:38,005 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:44:38,092 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 15:44:38,093 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7837d349 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:44:38, skipping insertion in model container [2021-11-19 15:44:38,094 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 15:44:38,094 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 15:44:38,098 INFO L158 Benchmark]: Toolchain (without parser) took 4326.63ms. Allocated memory was 98.6MB in the beginning and 142.6MB in the end (delta: 44.0MB). Free memory was 60.3MB in the beginning and 65.3MB in the end (delta: -5.0MB). Peak memory consumption was 54.4MB. Max. memory is 16.1GB. [2021-11-19 15:44:38,099 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 98.6MB. Free memory was 72.8MB in the beginning and 72.7MB in the end (delta: 45.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 15:44:38,101 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4324.24ms. Allocated memory was 98.6MB in the beginning and 142.6MB in the end (delta: 44.0MB). Free memory was 60.1MB in the beginning and 65.3MB in the end (delta: -5.2MB). Peak memory consumption was 52.3MB. Max. memory is 16.1GB. [2021-11-19 15:44:38,104 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 98.6MB. Free memory was 72.8MB in the beginning and 72.7MB in the end (delta: 45.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4324.24ms. Allocated memory was 98.6MB in the beginning and 142.6MB in the end (delta: 44.0MB). Free memory was 60.1MB in the beginning and 65.3MB in the end (delta: -5.2MB). Peak memory consumption was 52.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7247]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/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_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/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_cbf51327-8ac7-45ed-b7f3-008b1263c77c/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 df4f0c8d40dc980084ec2f9936d9bc7fc71c78b40a0de276eef2539e9d717dce --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 15:44:40,627 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 15:44:40,630 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 15:44:40,678 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 15:44:40,679 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 15:44:40,680 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 15:44:40,682 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 15:44:40,685 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 15:44:40,690 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 15:44:40,695 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 15:44:40,696 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 15:44:40,698 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 15:44:40,700 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 15:44:40,702 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 15:44:40,704 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 15:44:40,706 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 15:44:40,707 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 15:44:40,708 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 15:44:40,711 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 15:44:40,713 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 15:44:40,716 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 15:44:40,717 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 15:44:40,719 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 15:44:40,720 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 15:44:40,724 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 15:44:40,724 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 15:44:40,725 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 15:44:40,726 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 15:44:40,727 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 15:44:40,728 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 15:44:40,728 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 15:44:40,729 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 15:44:40,731 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 15:44:40,732 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 15:44:40,733 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 15:44:40,734 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 15:44:40,735 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 15:44:40,743 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 15:44:40,744 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 15:44:40,745 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 15:44:40,746 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 15:44:40,747 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 15:44:40,789 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 15:44:40,790 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 15:44:40,791 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 15:44:40,791 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 15:44:40,791 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 15:44:40,791 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 15:44:40,792 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 15:44:40,792 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 15:44:40,792 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 15:44:40,792 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 15:44:40,793 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 15:44:40,794 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 15:44:40,794 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 15:44:40,794 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 15:44:40,794 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 15:44:40,795 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 15:44:40,795 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 15:44:40,795 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 15:44:40,795 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 15:44:40,796 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 15:44:40,796 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 15:44:40,796 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 15:44:40,796 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 15:44:40,797 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 15:44:40,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:44:40,797 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 15:44:40,797 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 15:44:40,798 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 15:44:40,798 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 15:44:40,798 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 15:44:40,798 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 15:44:40,799 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 15:44:40,799 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 15:44:40,799 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_cbf51327-8ac7-45ed-b7f3-008b1263c77c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df4f0c8d40dc980084ec2f9936d9bc7fc71c78b40a0de276eef2539e9d717dce [2021-11-19 15:44:41,132 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 15:44:41,159 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 15:44:41,161 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 15:44:41,163 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 15:44:41,164 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 15:44:41,165 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i [2021-11-19 15:44:41,238 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/data/01d1a8460/091dccabe96547b6826945a43154f01a/FLAGdbc51727b [2021-11-19 15:44:42,224 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 15:44:42,225 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i [2021-11-19 15:44:42,294 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/data/01d1a8460/091dccabe96547b6826945a43154f01a/FLAGdbc51727b [2021-11-19 15:44:42,607 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/data/01d1a8460/091dccabe96547b6826945a43154f01a [2021-11-19 15:44:42,609 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 15:44:42,611 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 15:44:42,613 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 15:44:42,614 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 15:44:42,618 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 15:44:42,619 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:44:42" (1/1) ... [2021-11-19 15:44:42,621 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7527ce85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:44:42, skipping insertion in model container [2021-11-19 15:44:42,621 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:44:42" (1/1) ... [2021-11-19 15:44:42,654 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 15:44:42,875 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:44:47,017 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_cbf51327-8ac7-45ed-b7f3-008b1263c77c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[415958,415971] [2021-11-19 15:44:47,020 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_cbf51327-8ac7-45ed-b7f3-008b1263c77c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[416127,416140] [2021-11-19 15:44:47,021 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_cbf51327-8ac7-45ed-b7f3-008b1263c77c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[416294,416307] [2021-11-19 15:44:47,021 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_cbf51327-8ac7-45ed-b7f3-008b1263c77c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[416462,416475] [2021-11-19 15:44:47,052 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:44:47,174 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 15:44:47,365 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:44:47,853 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_cbf51327-8ac7-45ed-b7f3-008b1263c77c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[415958,415971] [2021-11-19 15:44:47,853 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_cbf51327-8ac7-45ed-b7f3-008b1263c77c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[416127,416140] [2021-11-19 15:44:47,854 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_cbf51327-8ac7-45ed-b7f3-008b1263c77c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[416294,416307] [2021-11-19 15:44:47,854 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_cbf51327-8ac7-45ed-b7f3-008b1263c77c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[416462,416475] [2021-11-19 15:44:47,859 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:44:47,907 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 15:44:48,573 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_cbf51327-8ac7-45ed-b7f3-008b1263c77c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[415958,415971] [2021-11-19 15:44:48,574 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_cbf51327-8ac7-45ed-b7f3-008b1263c77c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[416127,416140] [2021-11-19 15:44:48,574 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_cbf51327-8ac7-45ed-b7f3-008b1263c77c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[416294,416307] [2021-11-19 15:44:48,575 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_cbf51327-8ac7-45ed-b7f3-008b1263c77c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[416462,416475] [2021-11-19 15:44:48,580 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:44:48,773 INFO L208 MainTranslator]: Completed translation [2021-11-19 15:44:48,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:44:48 WrapperNode [2021-11-19 15:44:48,773 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 15:44:48,775 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 15:44:48,775 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 15:44:48,779 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 15:44:48,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:44:48" (1/1) ... [2021-11-19 15:44:48,950 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:44:48" (1/1) ... [2021-11-19 15:44:49,255 INFO L137 Inliner]: procedures = 499, calls = 3172, calls flagged for inlining = 226, calls inlined = 201, statements flattened = 6609 [2021-11-19 15:44:49,256 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 15:44:49,257 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 15:44:49,258 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 15:44:49,258 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 15:44:49,266 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:44:48" (1/1) ... [2021-11-19 15:44:49,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:44:48" (1/1) ... [2021-11-19 15:44:49,315 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:44:48" (1/1) ... [2021-11-19 15:44:49,316 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:44:48" (1/1) ... [2021-11-19 15:44:49,475 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:44:48" (1/1) ... [2021-11-19 15:44:49,496 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:44:48" (1/1) ... [2021-11-19 15:44:49,555 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:44:48" (1/1) ... [2021-11-19 15:44:49,602 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 15:44:49,604 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 15:44:49,604 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 15:44:49,605 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 15:44:49,605 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:44:48" (1/1) ... [2021-11-19 15:44:49,613 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:44:49,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:44:49,643 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 15:44:49,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 15:44:49,706 INFO L130 BoogieDeclarations]: Found specification of procedure ngene_command_mutex [2021-11-19 15:44:49,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ngene_command_mutex [2021-11-19 15:44:49,706 INFO L130 BoogieDeclarations]: Found specification of procedure ngene_probe [2021-11-19 15:44:49,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ngene_probe [2021-11-19 15:44:49,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 15:44:49,707 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 15:44:49,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 15:44:49,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 15:44:49,707 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-19 15:44:49,707 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-19 15:44:49,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 15:44:49,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 15:44:49,708 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2021-11-19 15:44:49,708 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2021-11-19 15:44:49,708 INFO L130 BoogieDeclarations]: Found specification of procedure __symbol_put [2021-11-19 15:44:49,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __symbol_put [2021-11-19 15:44:49,708 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_generic_release [2021-11-19 15:44:49,709 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_generic_release [2021-11-19 15:44:49,709 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_generic_open [2021-11-19 15:44:49,709 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_generic_open [2021-11-19 15:44:49,709 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-19 15:44:49,709 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-19 15:44:49,709 INFO L130 BoogieDeclarations]: Found specification of procedure ngene_release_buffers [2021-11-19 15:44:49,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ngene_release_buffers [2021-11-19 15:44:49,710 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-19 15:44:49,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-19 15:44:49,710 INFO L130 BoogieDeclarations]: Found specification of procedure down [2021-11-19 15:44:49,710 INFO L138 BoogieDeclarations]: Found implementation of procedure down [2021-11-19 15:44:49,711 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-19 15:44:49,711 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-19 15:44:49,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 15:44:49,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 15:44:49,711 INFO L130 BoogieDeclarations]: Found specification of procedure tuner_attach_stv6110 [2021-11-19 15:44:49,711 INFO L138 BoogieDeclarations]: Found implementation of procedure tuner_attach_stv6110 [2021-11-19 15:44:49,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 15:44:49,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 15:44:49,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 15:44:49,712 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2021-11-19 15:44:49,712 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2021-11-19 15:44:49,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-19 15:44:49,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 15:44:49,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 15:44:49,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 15:44:49,715 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~TO~C_INT [2021-11-19 15:44:49,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~TO~C_INT [2021-11-19 15:44:49,715 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-19 15:44:49,715 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-19 15:44:49,716 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-11-19 15:44:49,716 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-11-19 15:44:49,716 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-19 15:44:49,716 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-19 15:44:49,716 INFO L130 BoogieDeclarations]: Found specification of procedure ngene_command_i2c_read [2021-11-19 15:44:49,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ngene_command_i2c_read [2021-11-19 15:44:49,717 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-19 15:44:49,717 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-19 15:44:49,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 15:44:49,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 15:44:49,718 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_ringbuffer_avail [2021-11-19 15:44:49,718 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_ringbuffer_avail [2021-11-19 15:44:49,718 INFO L130 BoogieDeclarations]: Found specification of procedure set_transfer [2021-11-19 15:44:49,719 INFO L138 BoogieDeclarations]: Found implementation of procedure set_transfer [2021-11-19 15:44:49,719 INFO L130 BoogieDeclarations]: Found specification of procedure ngene_resume [2021-11-19 15:44:49,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ngene_resume [2021-11-19 15:44:49,720 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_frontend_detach [2021-11-19 15:44:49,720 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_frontend_detach [2021-11-19 15:44:49,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-19 15:44:49,720 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-19 15:44:49,720 INFO L130 BoogieDeclarations]: Found specification of procedure ngene_shutdown [2021-11-19 15:44:49,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ngene_shutdown [2021-11-19 15:44:49,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-19 15:44:49,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-19 15:44:49,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_cmd_lock_of_ngene [2021-11-19 15:44:49,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_cmd_lock_of_ngene [2021-11-19 15:44:49,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-19 15:44:49,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-19 15:44:49,802 INFO L130 BoogieDeclarations]: Found specification of procedure memset_io [2021-11-19 15:44:49,802 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_io [2021-11-19 15:44:49,803 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_frontend [2021-11-19 15:44:49,803 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_frontend [2021-11-19 15:44:49,803 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2021-11-19 15:44:49,803 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2021-11-19 15:44:49,803 INFO L130 BoogieDeclarations]: Found specification of procedure ngene_command [2021-11-19 15:44:49,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ngene_command [2021-11-19 15:44:49,804 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-11-19 15:44:49,804 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-11-19 15:44:49,804 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-19 15:44:49,804 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-19 15:44:49,804 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-19 15:44:49,804 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-19 15:44:49,804 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-19 15:44:49,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-19 15:44:49,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-19 15:44:49,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-19 15:44:49,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 15:44:49,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-19 15:44:49,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-19 15:44:49,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-19 15:44:49,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-19 15:44:49,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2021-11-19 15:44:49,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2021-11-19 15:44:49,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-19 15:44:49,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-19 15:44:49,806 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_ringbuffer_write [2021-11-19 15:44:49,806 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_ringbuffer_write [2021-11-19 15:44:49,807 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_register_frontend [2021-11-19 15:44:49,807 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_register_frontend [2021-11-19 15:44:49,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 15:44:49,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 15:44:49,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 15:44:49,807 INFO L130 BoogieDeclarations]: Found specification of procedure ngene_remove [2021-11-19 15:44:49,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ngene_remove [2021-11-19 15:44:49,808 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_state_lock_of_ngene_channel [2021-11-19 15:44:49,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_state_lock_of_ngene_channel [2021-11-19 15:44:49,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 15:44:49,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 15:44:49,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 15:44:49,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 15:44:49,808 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-19 15:44:49,809 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-19 15:44:49,809 INFO L130 BoogieDeclarations]: Found specification of procedure ngene_stop [2021-11-19 15:44:49,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ngene_stop [2021-11-19 15:44:49,812 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2021-11-19 15:44:49,812 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2021-11-19 15:44:49,812 INFO L130 BoogieDeclarations]: Found specification of procedure ngene_i2c_init [2021-11-19 15:44:49,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ngene_i2c_init [2021-11-19 15:44:49,813 INFO L130 BoogieDeclarations]: Found specification of procedure sema_init [2021-11-19 15:44:49,813 INFO L138 BoogieDeclarations]: Found implementation of procedure sema_init [2021-11-19 15:44:49,813 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-11-19 15:44:49,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-11-19 15:44:49,813 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_del_adapter [2021-11-19 15:44:49,813 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_del_adapter [2021-11-19 15:44:49,814 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_ringbuffer_free [2021-11-19 15:44:49,814 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_ringbuffer_free [2021-11-19 15:44:49,814 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-19 15:44:49,814 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-19 15:44:49,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 15:44:49,814 INFO L130 BoogieDeclarations]: Found specification of procedure init_channels [2021-11-19 15:44:49,826 INFO L138 BoogieDeclarations]: Found implementation of procedure init_channels [2021-11-19 15:44:49,826 INFO L130 BoogieDeclarations]: Found specification of procedure free_ringbuffer [2021-11-19 15:44:49,826 INFO L138 BoogieDeclarations]: Found implementation of procedure free_ringbuffer [2021-11-19 15:44:49,826 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-11-19 15:44:49,826 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-11-19 15:44:49,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 15:44:49,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 15:44:49,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dvb_register_frontend [2021-11-19 15:44:49,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dvb_register_frontend [2021-11-19 15:44:49,827 INFO L130 BoogieDeclarations]: Found specification of procedure AllocateRingBuffers [2021-11-19 15:44:49,827 INFO L138 BoogieDeclarations]: Found implementation of procedure AllocateRingBuffers [2021-11-19 15:44:49,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 15:44:49,828 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-19 15:44:49,828 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-19 15:44:49,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 15:44:49,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 15:44:49,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 15:44:49,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 15:44:49,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 15:44:49,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 15:44:49,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 15:44:49,829 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_ringbuffer_init [2021-11-19 15:44:49,829 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_ringbuffer_init [2021-11-19 15:44:49,829 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2021-11-19 15:44:49,829 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2021-11-19 15:44:49,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 15:44:49,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 15:44:49,830 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-19 15:44:49,830 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-19 15:44:49,830 INFO L130 BoogieDeclarations]: Found specification of procedure demod_attach_stv0900 [2021-11-19 15:44:49,830 INFO L138 BoogieDeclarations]: Found implementation of procedure demod_attach_stv0900 [2021-11-19 15:44:49,830 INFO L130 BoogieDeclarations]: Found specification of procedure FillTSBuffer [2021-11-19 15:44:49,830 INFO L138 BoogieDeclarations]: Found implementation of procedure FillTSBuffer [2021-11-19 15:44:49,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_cmd_lock_of_ngene [2021-11-19 15:44:49,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_cmd_lock_of_ngene [2021-11-19 15:44:49,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_module_exit_ngene_12_2 [2021-11-19 15:44:49,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_module_exit_ngene_12_2 [2021-11-19 15:44:49,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 15:44:49,831 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 15:44:49,831 INFO L130 BoogieDeclarations]: Found specification of procedure create_ring_buffer [2021-11-19 15:44:49,832 INFO L138 BoogieDeclarations]: Found implementation of procedure create_ring_buffer [2021-11-19 15:44:49,832 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-19 15:44:49,832 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-19 15:44:49,832 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2021-11-19 15:44:49,832 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2021-11-19 15:44:49,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-11-19 15:44:49,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-11-19 15:44:49,833 INFO L130 BoogieDeclarations]: Found specification of procedure ngene_command_gpio_set [2021-11-19 15:44:49,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ngene_command_gpio_set [2021-11-19 15:44:49,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 15:44:49,833 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_read_eeprom [2021-11-19 15:44:49,833 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_read_eeprom [2021-11-19 15:44:49,833 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-19 15:44:49,833 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-19 15:44:49,834 INFO L130 BoogieDeclarations]: Found specification of procedure up [2021-11-19 15:44:49,834 INFO L138 BoogieDeclarations]: Found implementation of procedure up [2021-11-19 15:44:49,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 15:44:49,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 15:44:49,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 15:44:49,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 15:44:49,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 15:44:49,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 15:44:49,835 INFO L130 BoogieDeclarations]: Found specification of procedure my_dvb_dmxdev_ts_card_init [2021-11-19 15:44:49,835 INFO L138 BoogieDeclarations]: Found implementation of procedure my_dvb_dmxdev_ts_card_init [2021-11-19 15:44:49,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-19 15:44:49,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-19 15:44:49,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 15:44:49,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 15:44:49,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-19 15:44:49,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-19 15:44:49,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_state_lock_of_ngene_channel [2021-11-19 15:44:49,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_state_lock_of_ngene_channel [2021-11-19 15:44:49,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_66 [2021-11-19 15:44:49,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_66 [2021-11-19 15:44:49,838 INFO L130 BoogieDeclarations]: Found specification of procedure init_channel [2021-11-19 15:44:49,838 INFO L138 BoogieDeclarations]: Found implementation of procedure init_channel [2021-11-19 15:44:49,838 INFO L130 BoogieDeclarations]: Found specification of procedure release_channel [2021-11-19 15:44:49,838 INFO L138 BoogieDeclarations]: Found implementation of procedure release_channel [2021-11-19 15:44:49,838 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~$Pointer$ [2021-11-19 15:44:49,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~$Pointer$ [2021-11-19 15:44:49,839 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 15:44:49,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 15:44:49,839 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_ringbuffer_flush [2021-11-19 15:44:49,839 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_ringbuffer_flush [2021-11-19 15:44:49,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 15:44:49,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 15:44:49,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 15:44:49,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 15:44:49,840 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_transfer [2021-11-19 15:44:49,840 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_transfer [2021-11-19 15:44:49,840 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-19 15:44:49,841 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-19 15:44:49,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 15:44:49,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 15:44:49,842 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2021-11-19 15:44:49,846 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2021-11-19 15:44:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_67 [2021-11-19 15:44:49,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_67 [2021-11-19 15:44:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure __symbol_get [2021-11-19 15:44:49,847 INFO L138 BoogieDeclarations]: Found implementation of procedure __symbol_get [2021-11-19 15:44:49,848 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-19 15:44:49,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-19 15:44:49,848 INFO L130 BoogieDeclarations]: Found specification of procedure drxk_gate_ctrl [2021-11-19 15:44:49,849 INFO L138 BoogieDeclarations]: Found implementation of procedure drxk_gate_ctrl [2021-11-19 15:44:49,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 15:44:49,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 15:44:49,854 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-19 15:44:49,855 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-19 15:44:49,855 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-11-19 15:44:49,855 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-11-19 15:44:49,855 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-19 15:44:49,855 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-19 15:44:49,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dvb_unregister_frontend [2021-11-19 15:44:49,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dvb_unregister_frontend [2021-11-19 15:44:49,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-19 15:44:49,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-19 15:44:51,061 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 15:44:51,066 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 15:45:17,206 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 15:46:05,376 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-19 15:46:05,449 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 15:46:05,473 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 15:46:05,473 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 15:46:05,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:46:05 BoogieIcfgContainer [2021-11-19 15:46:05,479 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 15:46:05,481 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 15:46:05,481 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 15:46:05,484 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 15:46:05,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 03:44:42" (1/3) ... [2021-11-19 15:46:05,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@407866f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:46:05, skipping insertion in model container [2021-11-19 15:46:05,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:44:48" (2/3) ... [2021-11-19 15:46:05,486 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@407866f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:46:05, skipping insertion in model container [2021-11-19 15:46:05,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:46:05" (3/3) ... [2021-11-19 15:46:05,487 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i [2021-11-19 15:46:05,493 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 15:46:05,494 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-19 15:46:05,555 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 15:46:05,562 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 15:46:05,562 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-19 15:46:05,622 INFO L276 IsEmpty]: Start isEmpty. Operand has 2042 states, 1436 states have (on average 1.318941504178273) internal successors, (1894), 1458 states have internal predecessors, (1894), 493 states have call successors, (493), 111 states have call predecessors, (493), 110 states have return successors, (485), 485 states have call predecessors, (485), 485 states have call successors, (485) [2021-11-19 15:46:05,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-11-19 15:46:05,642 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:46:05,643 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:46:05,644 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 15:46:05,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:46:05,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1933347178, now seen corresponding path program 1 times [2021-11-19 15:46:05,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:46:05,675 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [559464669] [2021-11-19 15:46:05,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:46:05,677 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:46:05,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:46:05,680 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:46:05,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 15:46:09,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:46:10,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 2528 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:46:10,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:46:10,625 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2021-11-19 15:46:10,625 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:46:11,282 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-11-19 15:46:11,283 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:46:11,283 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [559464669] [2021-11-19 15:46:11,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [559464669] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:46:11,284 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:46:11,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 15:46:11,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370439630] [2021-11-19 15:46:11,288 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:46:11,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:46:11,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:46:11,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:46:11,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:46:11,350 INFO L87 Difference]: Start difference. First operand has 2042 states, 1436 states have (on average 1.318941504178273) internal successors, (1894), 1458 states have internal predecessors, (1894), 493 states have call successors, (493), 111 states have call predecessors, (493), 110 states have return successors, (485), 485 states have call predecessors, (485), 485 states have call successors, (485) Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2021-11-19 15:46:13,642 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:46:22,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:46:22,590 INFO L93 Difference]: Finished difference Result 7788 states and 11318 transitions. [2021-11-19 15:46:22,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:46:22,593 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 162 [2021-11-19 15:46:22,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:46:22,659 INFO L225 Difference]: With dead ends: 7788 [2021-11-19 15:46:22,659 INFO L226 Difference]: Without dead ends: 5728 [2021-11-19 15:46:22,686 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 320 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:46:22,690 INFO L933 BasicCegarLoop]: 3829 mSDtfsCounter, 7156 mSDsluCounter, 4542 mSDsCounter, 0 mSdLazyCounter, 941 mSolverCounterSat, 949 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7156 SdHoareTripleChecker+Valid, 8371 SdHoareTripleChecker+Invalid, 1891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 949 IncrementalHoareTripleChecker+Valid, 941 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2021-11-19 15:46:22,691 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7156 Valid, 8371 Invalid, 1891 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [949 Valid, 941 Invalid, 1 Unknown, 0 Unchecked, 10.6s Time] [2021-11-19 15:46:22,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5728 states. [2021-11-19 15:46:23,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5728 to 5670. [2021-11-19 15:46:23,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5670 states, 4035 states have (on average 1.3197026022304832) internal successors, (5325), 4110 states have internal predecessors, (5325), 1328 states have call successors, (1328), 311 states have call predecessors, (1328), 304 states have return successors, (1379), 1303 states have call predecessors, (1379), 1324 states have call successors, (1379) [2021-11-19 15:46:23,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5670 states to 5670 states and 8032 transitions. [2021-11-19 15:46:23,211 INFO L78 Accepts]: Start accepts. Automaton has 5670 states and 8032 transitions. Word has length 162 [2021-11-19 15:46:23,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:46:23,213 INFO L470 AbstractCegarLoop]: Abstraction has 5670 states and 8032 transitions. [2021-11-19 15:46:23,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2021-11-19 15:46:23,213 INFO L276 IsEmpty]: Start isEmpty. Operand 5670 states and 8032 transitions. [2021-11-19 15:46:23,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-11-19 15:46:23,230 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:46:23,231 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:46:23,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 15:46:23,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:46:23,455 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 15:46:23,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:46:23,455 INFO L85 PathProgramCache]: Analyzing trace with hash 479270125, now seen corresponding path program 1 times [2021-11-19 15:46:23,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:46:23,459 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [847047982] [2021-11-19 15:46:23,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:46:23,460 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:46:23,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:46:23,462 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:46:23,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 15:46:27,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:46:27,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 2500 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:46:27,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:46:28,150 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2021-11-19 15:46:28,150 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:46:28,672 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-11-19 15:46:28,672 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:46:28,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [847047982] [2021-11-19 15:46:28,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [847047982] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:46:28,674 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:46:28,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 15:46:28,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313915290] [2021-11-19 15:46:28,675 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:46:28,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:46:28,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:46:28,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:46:28,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:46:28,687 INFO L87 Difference]: Start difference. First operand 5670 states and 8032 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2021-11-19 15:46:30,942 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:46:37,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:46:37,770 INFO L93 Difference]: Finished difference Result 22153 states and 31412 transitions. [2021-11-19 15:46:37,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:46:37,771 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 164 [2021-11-19 15:46:37,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:46:37,917 INFO L225 Difference]: With dead ends: 22153 [2021-11-19 15:46:37,919 INFO L226 Difference]: Without dead ends: 16512 [2021-11-19 15:46:37,960 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:46:37,963 INFO L933 BasicCegarLoop]: 3685 mSDtfsCounter, 5383 mSDsluCounter, 6787 mSDsCounter, 0 mSdLazyCounter, 1017 mSolverCounterSat, 32 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5383 SdHoareTripleChecker+Valid, 10472 SdHoareTripleChecker+Invalid, 1050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1017 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2021-11-19 15:46:37,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5383 Valid, 10472 Invalid, 1050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1017 Invalid, 1 Unknown, 0 Unchecked, 8.2s Time] [2021-11-19 15:46:37,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16512 states. [2021-11-19 15:46:38,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16512 to 16484. [2021-11-19 15:46:38,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16484 states, 11777 states have (on average 1.3235968413008405) internal successors, (15588), 11980 states have internal predecessors, (15588), 3800 states have call successors, (3800), 923 states have call predecessors, (3800), 904 states have return successors, (3961), 3745 states have call predecessors, (3961), 3796 states have call successors, (3961) [2021-11-19 15:46:38,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16484 states to 16484 states and 23349 transitions. [2021-11-19 15:46:38,995 INFO L78 Accepts]: Start accepts. Automaton has 16484 states and 23349 transitions. Word has length 164 [2021-11-19 15:46:38,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:46:38,998 INFO L470 AbstractCegarLoop]: Abstraction has 16484 states and 23349 transitions. [2021-11-19 15:46:38,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2021-11-19 15:46:38,999 INFO L276 IsEmpty]: Start isEmpty. Operand 16484 states and 23349 transitions. [2021-11-19 15:46:39,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-11-19 15:46:39,005 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:46:39,006 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:46:39,085 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 15:46:39,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:46:39,221 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 15:46:39,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:46:39,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1559554435, now seen corresponding path program 1 times [2021-11-19 15:46:39,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:46:39,225 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [390257022] [2021-11-19 15:46:39,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:46:39,226 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:46:39,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:46:39,228 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:46:39,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 15:46:43,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:46:43,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 2590 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:46:43,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:46:43,696 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2021-11-19 15:46:43,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:46:44,233 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-11-19 15:46:44,233 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:46:44,233 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [390257022] [2021-11-19 15:46:44,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [390257022] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:46:44,233 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:46:44,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 15:46:44,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019212980] [2021-11-19 15:46:44,234 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:46:44,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:46:44,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:46:44,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:46:44,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:46:44,236 INFO L87 Difference]: Start difference. First operand 16484 states and 23349 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 4 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-19 15:46:46,458 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:46:53,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:46:53,383 INFO L93 Difference]: Finished difference Result 38340 states and 54317 transitions. [2021-11-19 15:46:53,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:46:53,384 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 4 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 180 [2021-11-19 15:46:53,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:46:53,514 INFO L225 Difference]: With dead ends: 38340 [2021-11-19 15:46:53,514 INFO L226 Difference]: Without dead ends: 21885 [2021-11-19 15:46:53,732 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 356 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:46:53,733 INFO L933 BasicCegarLoop]: 3388 mSDtfsCounter, 3822 mSDsluCounter, 3793 mSDsCounter, 0 mSdLazyCounter, 1051 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3822 SdHoareTripleChecker+Valid, 7181 SdHoareTripleChecker+Invalid, 1097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1051 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2021-11-19 15:46:53,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3822 Valid, 7181 Invalid, 1097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1051 Invalid, 1 Unknown, 0 Unchecked, 8.4s Time] [2021-11-19 15:46:53,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21885 states. [2021-11-19 15:46:54,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21885 to 21823. [2021-11-19 15:46:54,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21823 states, 15586 states have (on average 1.3321570640318234) internal successors, (20763), 15853 states have internal predecessors, (20763), 4970 states have call successors, (4970), 1283 states have call predecessors, (4970), 1264 states have return successors, (5076), 4900 states have call predecessors, (5076), 4966 states have call successors, (5076) [2021-11-19 15:46:54,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21823 states to 21823 states and 30809 transitions. [2021-11-19 15:46:54,847 INFO L78 Accepts]: Start accepts. Automaton has 21823 states and 30809 transitions. Word has length 180 [2021-11-19 15:46:54,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:46:54,849 INFO L470 AbstractCegarLoop]: Abstraction has 21823 states and 30809 transitions. [2021-11-19 15:46:54,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 4 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-19 15:46:54,849 INFO L276 IsEmpty]: Start isEmpty. Operand 21823 states and 30809 transitions. [2021-11-19 15:46:54,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-11-19 15:46:54,854 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:46:54,854 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:46:54,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 15:46:55,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:46:55,068 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 15:46:55,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:46:55,068 INFO L85 PathProgramCache]: Analyzing trace with hash -589785325, now seen corresponding path program 1 times [2021-11-19 15:46:55,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:46:55,071 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [115333277] [2021-11-19 15:46:55,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:46:55,071 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:46:55,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:46:55,072 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:46:55,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 15:46:58,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:46:59,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 2705 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:46:59,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:46:59,665 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 597 trivial. 0 not checked. [2021-11-19 15:46:59,665 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:47:00,179 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 633 trivial. 0 not checked. [2021-11-19 15:47:00,179 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:47:00,179 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [115333277] [2021-11-19 15:47:00,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [115333277] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:47:00,179 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:47:00,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 15:47:00,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499105444] [2021-11-19 15:47:00,180 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:47:00,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:47:00,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:47:00,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:47:00,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:47:00,181 INFO L87 Difference]: Start difference. First operand 21823 states and 30809 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-19 15:47:02,402 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:47:03,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:47:03,730 INFO L93 Difference]: Finished difference Result 62176 states and 87874 transitions. [2021-11-19 15:47:03,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:47:03,730 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 200 [2021-11-19 15:47:03,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:47:03,922 INFO L225 Difference]: With dead ends: 62176 [2021-11-19 15:47:03,923 INFO L226 Difference]: Without dead ends: 40382 [2021-11-19 15:47:03,990 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 397 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:47:03,991 INFO L933 BasicCegarLoop]: 3334 mSDtfsCounter, 2614 mSDsluCounter, 2787 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2614 SdHoareTripleChecker+Valid, 6121 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-19 15:47:03,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2614 Valid, 6121 Invalid, 29 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [7 Valid, 21 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-19 15:47:04,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40382 states. [2021-11-19 15:47:06,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40382 to 40337. [2021-11-19 15:47:06,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40337 states, 28826 states have (on average 1.3323388607507112) internal successors, (38406), 29374 states have internal predecessors, (38406), 9167 states have call successors, (9167), 2378 states have call predecessors, (9167), 2341 states have return successors, (9383), 9010 states have call predecessors, (9383), 9163 states have call successors, (9383) [2021-11-19 15:47:06,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40337 states to 40337 states and 56956 transitions. [2021-11-19 15:47:06,390 INFO L78 Accepts]: Start accepts. Automaton has 40337 states and 56956 transitions. Word has length 200 [2021-11-19 15:47:06,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:47:06,390 INFO L470 AbstractCegarLoop]: Abstraction has 40337 states and 56956 transitions. [2021-11-19 15:47:06,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-19 15:47:06,391 INFO L276 IsEmpty]: Start isEmpty. Operand 40337 states and 56956 transitions. [2021-11-19 15:47:06,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2021-11-19 15:47:06,399 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:47:06,399 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:47:06,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 15:47:06,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:47:06,618 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 15:47:06,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:47:06,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1925037269, now seen corresponding path program 1 times [2021-11-19 15:47:06,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:47:06,621 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [600265414] [2021-11-19 15:47:06,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:47:06,622 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:47:06,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:47:06,623 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:47:06,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 15:47:10,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:47:10,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 2629 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 15:47:10,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:47:12,707 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 794 trivial. 0 not checked. [2021-11-19 15:47:12,707 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:47:14,159 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 794 trivial. 0 not checked. [2021-11-19 15:47:14,159 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:47:14,159 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [600265414] [2021-11-19 15:47:14,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [600265414] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:47:14,159 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:47:14,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-19 15:47:14,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772072401] [2021-11-19 15:47:14,160 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:47:14,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 15:47:14,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:47:14,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 15:47:14,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 15:47:14,162 INFO L87 Difference]: Start difference. First operand 40337 states and 56956 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (45), 4 states have call predecessors, (45), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-19 15:47:15,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:47:15,768 INFO L93 Difference]: Finished difference Result 40343 states and 56961 transitions. [2021-11-19 15:47:15,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 15:47:15,769 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (45), 4 states have call predecessors, (45), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 224 [2021-11-19 15:47:15,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:47:15,969 INFO L225 Difference]: With dead ends: 40343 [2021-11-19 15:47:15,969 INFO L226 Difference]: Without dead ends: 40341 [2021-11-19 15:47:15,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 441 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-19 15:47:15,989 INFO L933 BasicCegarLoop]: 2806 mSDtfsCounter, 2706 mSDsluCounter, 8391 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2719 SdHoareTripleChecker+Valid, 11197 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:47:15,990 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2719 Valid, 11197 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:47:16,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40341 states. [2021-11-19 15:47:17,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40341 to 40341. [2021-11-19 15:47:17,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40341 states, 28829 states have (on average 1.3323042769433557) internal successors, (38409), 29377 states have internal predecessors, (38409), 9167 states have call successors, (9167), 2379 states have call predecessors, (9167), 2342 states have return successors, (9383), 9010 states have call predecessors, (9383), 9163 states have call successors, (9383) [2021-11-19 15:47:18,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40341 states to 40341 states and 56959 transitions. [2021-11-19 15:47:18,092 INFO L78 Accepts]: Start accepts. Automaton has 40341 states and 56959 transitions. Word has length 224 [2021-11-19 15:47:18,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:47:18,093 INFO L470 AbstractCegarLoop]: Abstraction has 40341 states and 56959 transitions. [2021-11-19 15:47:18,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (45), 4 states have call predecessors, (45), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-19 15:47:18,093 INFO L276 IsEmpty]: Start isEmpty. Operand 40341 states and 56959 transitions. [2021-11-19 15:47:18,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2021-11-19 15:47:18,102 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:47:18,103 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:47:18,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 15:47:18,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:47:18,317 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 15:47:18,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:47:18,318 INFO L85 PathProgramCache]: Analyzing trace with hash -29830303, now seen corresponding path program 1 times [2021-11-19 15:47:18,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:47:18,322 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1058033923] [2021-11-19 15:47:18,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:47:18,322 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:47:18,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:47:18,325 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:47:18,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 15:47:22,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:47:22,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 2636 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 15:47:22,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:47:24,467 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 794 trivial. 0 not checked. [2021-11-19 15:47:24,468 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:47:25,497 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 794 trivial. 0 not checked. [2021-11-19 15:47:25,497 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:47:25,497 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1058033923] [2021-11-19 15:47:25,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1058033923] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 15:47:25,498 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 15:47:25,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 15:47:25,498 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173165469] [2021-11-19 15:47:25,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:47:25,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 15:47:25,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:47:25,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 15:47:25,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 15:47:25,500 INFO L87 Difference]: Start difference. First operand 40341 states and 56959 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-19 15:47:27,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:47:27,033 INFO L93 Difference]: Finished difference Result 40347 states and 56964 transitions. [2021-11-19 15:47:27,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 15:47:27,034 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 229 [2021-11-19 15:47:27,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:47:27,186 INFO L225 Difference]: With dead ends: 40347 [2021-11-19 15:47:27,187 INFO L226 Difference]: Without dead ends: 40345 [2021-11-19 15:47:27,205 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 451 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 15:47:27,206 INFO L933 BasicCegarLoop]: 2809 mSDtfsCounter, 2734 mSDsluCounter, 5597 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2746 SdHoareTripleChecker+Valid, 8406 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:47:27,207 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2746 Valid, 8406 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:47:27,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40345 states. [2021-11-19 15:47:29,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40345 to 40345. [2021-11-19 15:47:29,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40345 states, 28832 states have (on average 1.3322697003329633) internal successors, (38412), 29380 states have internal predecessors, (38412), 9167 states have call successors, (9167), 2380 states have call predecessors, (9167), 2343 states have return successors, (9383), 9010 states have call predecessors, (9383), 9163 states have call successors, (9383) [2021-11-19 15:47:29,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40345 states to 40345 states and 56962 transitions. [2021-11-19 15:47:29,604 INFO L78 Accepts]: Start accepts. Automaton has 40345 states and 56962 transitions. Word has length 229 [2021-11-19 15:47:29,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:47:29,611 INFO L470 AbstractCegarLoop]: Abstraction has 40345 states and 56962 transitions. [2021-11-19 15:47:29,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-19 15:47:29,612 INFO L276 IsEmpty]: Start isEmpty. Operand 40345 states and 56962 transitions. [2021-11-19 15:47:29,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2021-11-19 15:47:29,631 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:47:29,631 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:47:29,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 15:47:29,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:47:29,853 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 15:47:29,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:47:29,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1383713806, now seen corresponding path program 1 times [2021-11-19 15:47:29,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:47:29,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [742826505] [2021-11-19 15:47:29,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:47:29,858 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:47:29,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:47:29,859 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:47:29,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 15:47:34,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:47:34,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 2687 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:47:34,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:47:34,897 INFO L134 CoverageAnalysis]: Checked inductivity of 810 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 735 trivial. 0 not checked. [2021-11-19 15:47:34,898 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:47:35,460 INFO L134 CoverageAnalysis]: Checked inductivity of 810 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2021-11-19 15:47:35,460 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:47:35,460 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [742826505] [2021-11-19 15:47:35,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [742826505] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:47:35,460 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:47:35,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 15:47:35,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970659568] [2021-11-19 15:47:35,461 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:47:35,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:47:35,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:47:35,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:47:35,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:47:35,462 INFO L87 Difference]: Start difference. First operand 40345 states and 56962 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 4 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2021-11-19 15:47:37,694 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:47:47,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:47:47,210 INFO L93 Difference]: Finished difference Result 99634 states and 140632 transitions. [2021-11-19 15:47:47,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:47:47,211 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 4 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) Word has length 242 [2021-11-19 15:47:47,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:47:47,461 INFO L225 Difference]: With dead ends: 99634 [2021-11-19 15:47:47,461 INFO L226 Difference]: Without dead ends: 59687 [2021-11-19 15:47:47,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 482 GetRequests, 480 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:47:47,576 INFO L933 BasicCegarLoop]: 5139 mSDtfsCounter, 6025 mSDsluCounter, 4491 mSDsCounter, 0 mSdLazyCounter, 1006 mSolverCounterSat, 619 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6025 SdHoareTripleChecker+Valid, 9630 SdHoareTripleChecker+Invalid, 1626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 619 IncrementalHoareTripleChecker+Valid, 1006 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:47:47,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6025 Valid, 9630 Invalid, 1626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [619 Valid, 1006 Invalid, 1 Unknown, 0 Unchecked, 9.1s Time] [2021-11-19 15:47:47,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59687 states. [2021-11-19 15:47:50,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59687 to 59623. [2021-11-19 15:47:50,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59623 states, 42621 states have (on average 1.3274442176391918) internal successors, (56577), 43399 states have internal predecessors, (56577), 13520 states have call successors, (13520), 3540 states have call predecessors, (13520), 3479 states have return successors, (13846), 13321 states have call predecessors, (13846), 13516 states have call successors, (13846) [2021-11-19 15:47:50,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59623 states to 59623 states and 83943 transitions. [2021-11-19 15:47:50,787 INFO L78 Accepts]: Start accepts. Automaton has 59623 states and 83943 transitions. Word has length 242 [2021-11-19 15:47:50,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:47:50,788 INFO L470 AbstractCegarLoop]: Abstraction has 59623 states and 83943 transitions. [2021-11-19 15:47:50,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 4 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2021-11-19 15:47:50,788 INFO L276 IsEmpty]: Start isEmpty. Operand 59623 states and 83943 transitions. [2021-11-19 15:47:50,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2021-11-19 15:47:50,797 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:47:50,798 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:47:50,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 15:47:51,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:47:51,021 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 15:47:51,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:47:51,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1807453333, now seen corresponding path program 1 times [2021-11-19 15:47:51,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:47:51,025 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [94942807] [2021-11-19 15:47:51,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:47:51,026 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:47:51,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:47:51,029 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:47:51,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 15:47:55,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:47:55,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 2686 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:47:55,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:47:55,928 INFO L134 CoverageAnalysis]: Checked inductivity of 809 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 735 trivial. 0 not checked. [2021-11-19 15:47:55,928 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:47:56,440 INFO L134 CoverageAnalysis]: Checked inductivity of 809 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2021-11-19 15:47:56,441 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:47:56,441 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [94942807] [2021-11-19 15:47:56,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [94942807] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:47:56,441 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:47:56,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 15:47:56,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980642654] [2021-11-19 15:47:56,442 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:47:56,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:47:56,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:47:56,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:47:56,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:47:56,444 INFO L87 Difference]: Start difference. First operand 59623 states and 83943 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 4 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2021-11-19 15:47:58,672 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:48:08,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:48:08,401 INFO L93 Difference]: Finished difference Result 157344 states and 221705 transitions. [2021-11-19 15:48:08,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:48:08,402 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 4 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) Word has length 241 [2021-11-19 15:48:08,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:48:08,731 INFO L225 Difference]: With dead ends: 157344 [2021-11-19 15:48:08,731 INFO L226 Difference]: Without dead ends: 98119 [2021-11-19 15:48:08,865 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 480 GetRequests, 478 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:48:08,866 INFO L933 BasicCegarLoop]: 5850 mSDtfsCounter, 5409 mSDsluCounter, 4490 mSDsCounter, 0 mSdLazyCounter, 1003 mSolverCounterSat, 450 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5409 SdHoareTripleChecker+Valid, 10340 SdHoareTripleChecker+Invalid, 1454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 450 IncrementalHoareTripleChecker+Valid, 1003 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:48:08,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5409 Valid, 10340 Invalid, 1454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [450 Valid, 1003 Invalid, 1 Unknown, 0 Unchecked, 8.0s Time] [2021-11-19 15:48:08,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98119 states. [2021-11-19 15:48:13,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98119 to 98083. [2021-11-19 15:48:13,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98083 states, 70151 states have (on average 1.3280637482003108) internal successors, (93165), 71389 states have internal predecessors, (93165), 22190 states have call successors, (22190), 5824 states have call predecessors, (22190), 5739 states have return successors, (22736), 21931 states have call predecessors, (22736), 22186 states have call successors, (22736) [2021-11-19 15:48:13,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98083 states to 98083 states and 138091 transitions. [2021-11-19 15:48:14,015 INFO L78 Accepts]: Start accepts. Automaton has 98083 states and 138091 transitions. Word has length 241 [2021-11-19 15:48:14,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:48:14,016 INFO L470 AbstractCegarLoop]: Abstraction has 98083 states and 138091 transitions. [2021-11-19 15:48:14,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 4 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2021-11-19 15:48:14,016 INFO L276 IsEmpty]: Start isEmpty. Operand 98083 states and 138091 transitions. [2021-11-19 15:48:14,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-11-19 15:48:14,026 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:48:14,027 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:48:14,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-19 15:48:14,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:48:14,249 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 15:48:14,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:48:14,250 INFO L85 PathProgramCache]: Analyzing trace with hash -853603157, now seen corresponding path program 1 times [2021-11-19 15:48:14,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:48:14,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1696674394] [2021-11-19 15:48:14,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:48:14,253 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:48:14,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:48:14,254 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:48:14,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf51327-8ac7-45ed-b7f3-008b1263c77c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 15:48:17,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:48:18,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 2643 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 15:48:18,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:48:19,826 INFO L134 CoverageAnalysis]: Checked inductivity of 802 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 798 trivial. 0 not checked. [2021-11-19 15:48:19,827 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:48:20,712 INFO L134 CoverageAnalysis]: Checked inductivity of 802 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 798 trivial. 0 not checked. [2021-11-19 15:48:20,712 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:48:20,713 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1696674394] [2021-11-19 15:48:20,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1696674394] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 15:48:20,713 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 15:48:20,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 15:48:20,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066009623] [2021-11-19 15:48:20,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:48:20,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 15:48:20,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:48:20,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 15:48:20,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 15:48:20,715 INFO L87 Difference]: Start difference. First operand 98083 states and 138091 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-19 15:48:25,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:48:25,091 INFO L93 Difference]: Finished difference Result 98089 states and 138096 transitions. [2021-11-19 15:48:25,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 15:48:25,093 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 234 [2021-11-19 15:48:25,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:48:25,430 INFO L225 Difference]: With dead ends: 98089 [2021-11-19 15:48:25,430 INFO L226 Difference]: Without dead ends: 98087 [2021-11-19 15:48:25,456 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 469 GetRequests, 461 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 15:48:25,457 INFO L933 BasicCegarLoop]: 2809 mSDtfsCounter, 2734 mSDsluCounter, 5597 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2745 SdHoareTripleChecker+Valid, 8406 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:48:25,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2745 Valid, 8406 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:48:25,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98087 states.