./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.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_efce502b-18d2-44a6-9068-3f1ff5c129be/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efce502b-18d2-44a6-9068-3f1ff5c129be/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_efce502b-18d2-44a6-9068-3f1ff5c129be/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efce502b-18d2-44a6-9068-3f1ff5c129be/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efce502b-18d2-44a6-9068-3f1ff5c129be/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_efce502b-18d2-44a6-9068-3f1ff5c129be/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 08fd1f25b7d22203947cf6c4ad8cac3aedaa56ca5536c5ddc05b18633d46ecf5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:29:26,745 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:29:26,749 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:29:26,799 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:29:26,808 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:29:26,810 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:29:26,812 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:29:26,816 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:29:26,820 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:29:26,825 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:29:26,827 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:29:26,829 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:29:26,831 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:29:26,839 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:29:26,841 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:29:26,844 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:29:26,847 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:29:26,848 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:29:26,851 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:29:26,854 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:29:26,856 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:29:26,864 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:29:26,869 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:29:26,870 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:29:26,882 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:29:26,887 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:29:26,888 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:29:26,889 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:29:26,891 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:29:26,892 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:29:26,893 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:29:26,895 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:29:26,897 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:29:26,898 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:29:26,900 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:29:26,901 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:29:26,902 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:29:26,902 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:29:26,902 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:29:26,903 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:29:26,904 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:29:26,905 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efce502b-18d2-44a6-9068-3f1ff5c129be/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 13:29:26,968 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:29:26,969 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:29:26,970 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:29:26,971 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:29:26,971 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:29:26,972 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:29:26,972 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:29:26,972 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 13:29:26,973 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:29:26,973 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:29:26,974 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 13:29:26,975 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 13:29:26,975 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:29:26,975 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 13:29:26,976 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 13:29:26,976 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 13:29:26,977 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:29:26,978 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 13:29:26,978 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:29:26,978 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:29:26,979 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:29:26,979 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:29:26,979 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:29:26,980 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:29:26,980 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:29:26,980 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:29:26,981 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:29:26,981 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:29:26,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:29:26,982 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:29:26,982 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:29:26,982 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:29:26,983 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 13:29:26,983 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 13:29:26,983 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:29:26,984 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:29:26,984 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:29:26,984 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_efce502b-18d2-44a6-9068-3f1ff5c129be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efce502b-18d2-44a6-9068-3f1ff5c129be/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08fd1f25b7d22203947cf6c4ad8cac3aedaa56ca5536c5ddc05b18633d46ecf5 [2021-11-19 13:29:27,295 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:29:27,322 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:29:27,325 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:29:27,326 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:29:27,327 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:29:27,328 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efce502b-18d2-44a6-9068-3f1ff5c129be/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i [2021-11-19 13:29:27,408 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efce502b-18d2-44a6-9068-3f1ff5c129be/bin/utaipan-UbGMyvGFUs/data/7a1c3b318/d913c89281054e888d99fd77b93fae3c/FLAGb8d537765 [2021-11-19 13:29:28,531 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:29:28,532 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efce502b-18d2-44a6-9068-3f1ff5c129be/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i [2021-11-19 13:29:28,583 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efce502b-18d2-44a6-9068-3f1ff5c129be/bin/utaipan-UbGMyvGFUs/data/7a1c3b318/d913c89281054e888d99fd77b93fae3c/FLAGb8d537765 [2021-11-19 13:29:28,810 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efce502b-18d2-44a6-9068-3f1ff5c129be/bin/utaipan-UbGMyvGFUs/data/7a1c3b318/d913c89281054e888d99fd77b93fae3c [2021-11-19 13:29:28,812 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:29:28,814 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:29:28,815 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:29:28,816 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:29:28,820 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:29:28,821 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:29:28" (1/1) ... [2021-11-19 13:29:28,822 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@691009f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:28, skipping insertion in model container [2021-11-19 13:29:28,823 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:29:28" (1/1) ... [2021-11-19 13:29:28,830 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:29:29,060 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:29:31,033 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:29:31,396 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:29:31,398 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:29:31,528 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:29:31,652 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:29:31,717 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:29:32,917 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_efce502b-18d2-44a6-9068-3f1ff5c129be/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i[470736,470749] [2021-11-19 13:29:32,926 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_efce502b-18d2-44a6-9068-3f1ff5c129be/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i[470902,470915] [2021-11-19 13:29:32,927 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_efce502b-18d2-44a6-9068-3f1ff5c129be/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i[471066,471079] [2021-11-19 13:29:32,928 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_efce502b-18d2-44a6-9068-3f1ff5c129be/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i[471231,471244] [2021-11-19 13:29:32,947 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:29:33,034 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 13:29:33,035 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@51123714 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:33, skipping insertion in model container [2021-11-19 13:29:33,035 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:29:33,036 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 13:29:33,038 INFO L158 Benchmark]: Toolchain (without parser) took 4222.88ms. Allocated memory was 96.5MB in the beginning and 209.7MB in the end (delta: 113.2MB). Free memory was 55.2MB in the beginning and 129.2MB in the end (delta: -74.0MB). Peak memory consumption was 51.8MB. Max. memory is 16.1GB. [2021-11-19 13:29:33,040 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 96.5MB. Free memory was 69.7MB in the beginning and 69.6MB in the end (delta: 50.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 13:29:33,042 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4220.24ms. Allocated memory was 96.5MB in the beginning and 209.7MB in the end (delta: 113.2MB). Free memory was 54.9MB in the beginning and 129.2MB in the end (delta: -74.2MB). Peak memory consumption was 49.7MB. Max. memory is 16.1GB. [2021-11-19 13:29:33,045 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 96.5MB. Free memory was 69.7MB in the beginning and 69.6MB in the end (delta: 50.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4220.24ms. Allocated memory was 96.5MB in the beginning and 209.7MB in the end (delta: 113.2MB). Free memory was 54.9MB in the beginning and 129.2MB in the end (delta: -74.2MB). Peak memory consumption was 49.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6900]: 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_efce502b-18d2-44a6-9068-3f1ff5c129be/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efce502b-18d2-44a6-9068-3f1ff5c129be/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_efce502b-18d2-44a6-9068-3f1ff5c129be/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efce502b-18d2-44a6-9068-3f1ff5c129be/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efce502b-18d2-44a6-9068-3f1ff5c129be/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_efce502b-18d2-44a6-9068-3f1ff5c129be/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 08fd1f25b7d22203947cf6c4ad8cac3aedaa56ca5536c5ddc05b18633d46ecf5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:29:35,714 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:29:35,717 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:29:35,775 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:29:35,776 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:29:35,781 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:29:35,783 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:29:35,788 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:29:35,792 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:29:35,801 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:29:35,807 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:29:35,809 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:29:35,810 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:29:35,813 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:29:35,816 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:29:35,821 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:29:35,823 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:29:35,824 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:29:35,826 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:29:35,835 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:29:35,838 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:29:35,839 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:29:35,843 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:29:35,845 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:29:35,856 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:29:35,856 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:29:35,857 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:29:35,859 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:29:35,860 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:29:35,861 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:29:35,863 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:29:35,864 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:29:35,866 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:29:35,867 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:29:35,896 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:29:35,896 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:29:35,897 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:29:35,898 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:29:35,898 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:29:35,900 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:29:35,901 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:29:35,902 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efce502b-18d2-44a6-9068-3f1ff5c129be/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 13:29:35,952 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:29:35,952 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:29:35,954 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:29:35,954 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:29:35,955 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:29:35,955 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:29:35,955 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:29:35,956 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:29:35,956 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:29:35,956 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:29:35,959 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:29:35,960 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:29:35,960 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:29:35,960 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:29:35,960 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:29:35,961 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:29:35,961 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 13:29:35,961 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 13:29:35,962 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:29:35,962 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:29:35,962 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:29:35,963 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:29:35,963 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 13:29:35,963 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:29:35,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:29:35,964 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:29:35,964 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:29:35,965 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:29:35,965 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 13:29:35,965 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 13:29:35,966 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:29:35,966 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:29:35,966 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:29:35,967 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_efce502b-18d2-44a6-9068-3f1ff5c129be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efce502b-18d2-44a6-9068-3f1ff5c129be/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08fd1f25b7d22203947cf6c4ad8cac3aedaa56ca5536c5ddc05b18633d46ecf5 [2021-11-19 13:29:36,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:29:36,456 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:29:36,460 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:29:36,462 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:29:36,463 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:29:36,464 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efce502b-18d2-44a6-9068-3f1ff5c129be/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i [2021-11-19 13:29:36,559 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efce502b-18d2-44a6-9068-3f1ff5c129be/bin/utaipan-UbGMyvGFUs/data/620556c8b/aa766bb6c7004c5fa6f750f7ed5e7d2f/FLAG80cb21442 [2021-11-19 13:29:37,951 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:29:37,952 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efce502b-18d2-44a6-9068-3f1ff5c129be/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i [2021-11-19 13:29:38,058 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efce502b-18d2-44a6-9068-3f1ff5c129be/bin/utaipan-UbGMyvGFUs/data/620556c8b/aa766bb6c7004c5fa6f750f7ed5e7d2f/FLAG80cb21442 [2021-11-19 13:29:38,570 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efce502b-18d2-44a6-9068-3f1ff5c129be/bin/utaipan-UbGMyvGFUs/data/620556c8b/aa766bb6c7004c5fa6f750f7ed5e7d2f [2021-11-19 13:29:38,574 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:29:38,576 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:29:38,581 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:29:38,582 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:29:38,585 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:29:38,586 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:29:38" (1/1) ... [2021-11-19 13:29:38,588 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45185af6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:38, skipping insertion in model container [2021-11-19 13:29:38,588 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:29:38" (1/1) ... [2021-11-19 13:29:38,596 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:29:38,844 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:29:42,683 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_efce502b-18d2-44a6-9068-3f1ff5c129be/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i[470736,470749] [2021-11-19 13:29:42,687 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_efce502b-18d2-44a6-9068-3f1ff5c129be/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i[470902,470915] [2021-11-19 13:29:42,688 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_efce502b-18d2-44a6-9068-3f1ff5c129be/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i[471066,471079] [2021-11-19 13:29:42,689 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_efce502b-18d2-44a6-9068-3f1ff5c129be/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i[471231,471244] [2021-11-19 13:29:42,722 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:29:42,823 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 13:29:42,941 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:29:43,429 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_efce502b-18d2-44a6-9068-3f1ff5c129be/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i[470736,470749] [2021-11-19 13:29:43,430 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_efce502b-18d2-44a6-9068-3f1ff5c129be/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i[470902,470915] [2021-11-19 13:29:43,430 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_efce502b-18d2-44a6-9068-3f1ff5c129be/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i[471066,471079] [2021-11-19 13:29:43,431 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_efce502b-18d2-44a6-9068-3f1ff5c129be/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i[471231,471244] [2021-11-19 13:29:43,438 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:29:43,484 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 13:29:44,154 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_efce502b-18d2-44a6-9068-3f1ff5c129be/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i[470736,470749] [2021-11-19 13:29:44,155 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_efce502b-18d2-44a6-9068-3f1ff5c129be/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i[470902,470915] [2021-11-19 13:29:44,156 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_efce502b-18d2-44a6-9068-3f1ff5c129be/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i[471066,471079] [2021-11-19 13:29:44,160 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_efce502b-18d2-44a6-9068-3f1ff5c129be/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i[471231,471244] [2021-11-19 13:29:44,165 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:29:44,456 INFO L208 MainTranslator]: Completed translation [2021-11-19 13:29:44,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:44 WrapperNode [2021-11-19 13:29:44,457 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:29:44,458 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 13:29:44,458 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 13:29:44,458 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 13:29:44,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:44" (1/1) ... [2021-11-19 13:29:44,566 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:44" (1/1) ... [2021-11-19 13:29:44,935 INFO L137 Inliner]: procedures = 425, calls = 4510, calls flagged for inlining = 226, calls inlined = 200, statements flattened = 8994 [2021-11-19 13:29:44,936 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 13:29:44,937 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 13:29:44,937 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 13:29:44,937 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 13:29:44,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:44" (1/1) ... [2021-11-19 13:29:44,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:44" (1/1) ... [2021-11-19 13:29:45,023 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:44" (1/1) ... [2021-11-19 13:29:45,024 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:44" (1/1) ... [2021-11-19 13:29:45,290 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:44" (1/1) ... [2021-11-19 13:29:45,333 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:44" (1/1) ... [2021-11-19 13:29:45,460 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:44" (1/1) ... [2021-11-19 13:29:45,523 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 13:29:45,524 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 13:29:45,524 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 13:29:45,524 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 13:29:45,525 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:44" (1/1) ... [2021-11-19 13:29:45,531 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:29:45,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efce502b-18d2-44a6-9068-3f1ff5c129be/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:29:45,554 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efce502b-18d2-44a6-9068-3f1ff5c129be/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 13:29:45,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efce502b-18d2-44a6-9068-3f1ff5c129be/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 13:29:45,601 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_reset [2021-11-19 13:29:45,602 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_reset [2021-11-19 13:29:45,602 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_frequency_to_channel [2021-11-19 13:29:45,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_frequency_to_channel [2021-11-19 13:29:45,602 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_stop [2021-11-19 13:29:45,602 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_stop [2021-11-19 13:29:45,602 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_config_parameter_str [2021-11-19 13:29:45,602 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_config_parameter_str [2021-11-19 13:29:45,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 13:29:45,603 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 13:29:45,603 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_inform_bss [2021-11-19 13:29:45,603 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_inform_bss [2021-11-19 13:29:45,603 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_pause_rx [2021-11-19 13:29:45,603 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_pause_rx [2021-11-19 13:29:45,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 13:29:45,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 13:29:45,604 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_tx_fixup [2021-11-19 13:29:45,604 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_tx_fixup [2021-11-19 13:29:45,604 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_bind [2021-11-19 13:29:45,604 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_bind [2021-11-19 13:29:45,604 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_set_multicast_list [2021-11-19 13:29:45,604 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_set_multicast_list [2021-11-19 13:29:45,605 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_purge_paused_rxq [2021-11-19 13:29:45,605 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_purge_paused_rxq [2021-11-19 13:29:45,605 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_unbind [2021-11-19 13:29:45,605 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_unbind [2021-11-19 13:29:45,605 INFO L130 BoogieDeclarations]: Found specification of procedure set_encr_mode [2021-11-19 13:29:45,605 INFO L138 BoogieDeclarations]: Found implementation of procedure set_encr_mode [2021-11-19 13:29:45,605 INFO L130 BoogieDeclarations]: Found specification of procedure get_rndis_wlan_priv [2021-11-19 13:29:45,606 INFO L138 BoogieDeclarations]: Found implementation of procedure get_rndis_wlan_priv [2021-11-19 13:29:45,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 13:29:45,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 13:29:45,606 INFO L130 BoogieDeclarations]: Found specification of procedure set_multicast_list [2021-11-19 13:29:45,606 INFO L138 BoogieDeclarations]: Found implementation of procedure set_multicast_list [2021-11-19 13:29:45,606 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-19 13:29:45,606 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-19 13:29:45,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 13:29:45,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 13:29:45,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-19 13:29:45,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-19 13:29:45,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 13:29:45,607 INFO L130 BoogieDeclarations]: Found specification of procedure set_infra_mode [2021-11-19 13:29:45,607 INFO L138 BoogieDeclarations]: Found implementation of procedure set_infra_mode [2021-11-19 13:29:45,607 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_command [2021-11-19 13:29:45,608 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_command [2021-11-19 13:29:45,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-19 13:29:45,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 13:29:45,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 13:29:45,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 13:29:45,608 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_scan_done [2021-11-19 13:29:45,608 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_scan_done [2021-11-19 13:29:45,609 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-11-19 13:29:45,611 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-11-19 13:29:45,611 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-19 13:29:45,611 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-19 13:29:45,612 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_fill_station_info [2021-11-19 13:29:45,612 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_fill_station_info [2021-11-19 13:29:45,612 INFO L130 BoogieDeclarations]: Found specification of procedure unknown_early_init [2021-11-19 13:29:45,612 INFO L138 BoogieDeclarations]: Found implementation of procedure unknown_early_init [2021-11-19 13:29:45,613 INFO L130 BoogieDeclarations]: Found specification of procedure disassociate [2021-11-19 13:29:45,613 INFO L138 BoogieDeclarations]: Found implementation of procedure disassociate [2021-11-19 13:29:45,614 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies_relative [2021-11-19 13:29:45,614 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies_relative [2021-11-19 13:29:45,614 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_query_oid [2021-11-19 13:29:45,614 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_query_oid [2021-11-19 13:29:45,614 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2021-11-19 13:29:45,614 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2021-11-19 13:29:45,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 13:29:45,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 13:29:45,615 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_tx_timeout [2021-11-19 13:29:45,615 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_tx_timeout [2021-11-19 13:29:45,615 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_free [2021-11-19 13:29:45,615 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_free [2021-11-19 13:29:45,616 INFO L130 BoogieDeclarations]: Found specification of procedure is_wpa_key [2021-11-19 13:29:45,616 INFO L138 BoogieDeclarations]: Found implementation of procedure is_wpa_key [2021-11-19 13:29:45,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-19 13:29:45,617 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-19 13:29:45,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-19 13:29:45,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-19 13:29:45,617 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_priv [2021-11-19 13:29:45,617 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_priv [2021-11-19 13:29:45,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_command_lock_of_rndis_wlan_private [2021-11-19 13:29:45,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_command_lock_of_rndis_wlan_private [2021-11-19 13:29:45,619 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_check_bssid_list [2021-11-19 13:29:45,619 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_check_bssid_list [2021-11-19 13:29:45,619 INFO L130 BoogieDeclarations]: Found specification of procedure __toupper [2021-11-19 13:29:45,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __toupper [2021-11-19 13:29:45,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 13:29:45,620 INFO L130 BoogieDeclarations]: Found specification of procedure bcm4320b_early_init [2021-11-19 13:29:45,620 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm4320b_early_init [2021-11-19 13:29:45,620 INFO L130 BoogieDeclarations]: Found specification of procedure set_channel [2021-11-19 13:29:45,620 INFO L138 BoogieDeclarations]: Found implementation of procedure set_channel [2021-11-19 13:29:45,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-19 13:29:45,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-19 13:29:45,621 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_status [2021-11-19 13:29:45,621 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_status [2021-11-19 13:29:45,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-19 13:29:45,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-19 13:29:45,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 13:29:45,622 INFO L130 BoogieDeclarations]: Found specification of procedure level_to_qual [2021-11-19 13:29:45,622 INFO L138 BoogieDeclarations]: Found implementation of procedure level_to_qual [2021-11-19 13:29:45,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 13:29:45,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 13:29:45,625 INFO L130 BoogieDeclarations]: Found specification of procedure set_essid [2021-11-19 13:29:45,627 INFO L138 BoogieDeclarations]: Found implementation of procedure set_essid [2021-11-19 13:29:45,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 13:29:45,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 13:29:45,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 13:29:45,628 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_put_bss [2021-11-19 13:29:45,629 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_put_bss [2021-11-19 13:29:45,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 13:29:45,630 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_start_bssid_list_scan [2021-11-19 13:29:45,630 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_start_bssid_list_scan [2021-11-19 13:29:45,637 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_open [2021-11-19 13:29:45,637 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_open [2021-11-19 13:29:45,638 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_copy_module_params [2021-11-19 13:29:45,638 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_copy_module_params [2021-11-19 13:29:45,638 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-19 13:29:45,638 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-19 13:29:45,638 INFO L130 BoogieDeclarations]: Found specification of procedure set_auth_mode [2021-11-19 13:29:45,639 INFO L138 BoogieDeclarations]: Found implementation of procedure set_auth_mode [2021-11-19 13:29:45,639 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2021-11-19 13:29:45,639 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2021-11-19 13:29:45,639 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-19 13:29:45,639 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-19 13:29:45,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 13:29:45,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 13:29:45,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 13:29:45,640 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-19 13:29:45,640 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-19 13:29:45,640 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-11-19 13:29:45,640 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-11-19 13:29:45,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 13:29:45,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 13:29:45,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 13:29:45,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 13:29:45,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 13:29:45,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 13:29:45,641 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 13:29:45,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 13:29:45,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rndis_wlan_driver_exit_11_2 [2021-11-19 13:29:45,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rndis_wlan_driver_exit_11_2 [2021-11-19 13:29:45,642 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2021-11-19 13:29:45,642 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2021-11-19 13:29:45,642 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_cipher_to_alg [2021-11-19 13:29:45,642 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_cipher_to_alg [2021-11-19 13:29:45,643 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-19 13:29:45,643 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-19 13:29:45,643 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_channel [2021-11-19 13:29:45,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_channel [2021-11-19 13:29:45,643 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2021-11-19 13:29:45,643 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2021-11-19 13:29:45,644 INFO L130 BoogieDeclarations]: Found specification of procedure add_wep_key [2021-11-19 13:29:45,644 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wep_key [2021-11-19 13:29:45,644 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_stop [2021-11-19 13:29:45,644 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_stop [2021-11-19 13:29:45,644 INFO L130 BoogieDeclarations]: Found specification of procedure is_broadcast_ether_addr [2021-11-19 13:29:45,644 INFO L138 BoogieDeclarations]: Found implementation of procedure is_broadcast_ether_addr [2021-11-19 13:29:45,645 INFO L130 BoogieDeclarations]: Found specification of procedure set_bssid [2021-11-19 13:29:45,645 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bssid [2021-11-19 13:29:45,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 13:29:45,645 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 13:29:45,645 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-11-19 13:29:45,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-11-19 13:29:45,645 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-11-19 13:29:45,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-11-19 13:29:45,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 13:29:45,646 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-19 13:29:45,646 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-19 13:29:45,646 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bssid [2021-11-19 13:29:45,646 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bssid [2021-11-19 13:29:45,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 13:29:45,647 INFO L130 BoogieDeclarations]: Found specification of procedure set_device_pmkids [2021-11-19 13:29:45,647 INFO L138 BoogieDeclarations]: Found implementation of procedure set_device_pmkids [2021-11-19 13:29:45,647 INFO L130 BoogieDeclarations]: Found specification of procedure get_device_pmkids [2021-11-19 13:29:45,647 INFO L138 BoogieDeclarations]: Found implementation of procedure get_device_pmkids [2021-11-19 13:29:45,647 INFO L130 BoogieDeclarations]: Found specification of procedure netif_addr_unlock_bh [2021-11-19 13:29:45,648 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_addr_unlock_bh [2021-11-19 13:29:45,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 13:29:45,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 13:29:45,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 13:29:45,650 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2021-11-19 13:29:45,650 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2021-11-19 13:29:45,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 13:29:45,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 13:29:45,650 INFO L130 BoogieDeclarations]: Found specification of procedure next_bssid_list_item [2021-11-19 13:29:45,651 INFO L138 BoogieDeclarations]: Found implementation of procedure next_bssid_list_item [2021-11-19 13:29:45,651 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-19 13:29:45,651 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-19 13:29:45,651 INFO L130 BoogieDeclarations]: Found specification of procedure set_priv_filter [2021-11-19 13:29:45,651 INFO L138 BoogieDeclarations]: Found implementation of procedure set_priv_filter [2021-11-19 13:29:45,651 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-19 13:29:45,651 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-19 13:29:45,652 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_wiphy_params [2021-11-19 13:29:45,652 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_wiphy_params [2021-11-19 13:29:45,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 13:29:45,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 13:29:45,652 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-19 13:29:45,652 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-19 13:29:45,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_7_4 [2021-11-19 13:29:45,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_7_4 [2021-11-19 13:29:45,653 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2021-11-19 13:29:45,653 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2021-11-19 13:29:45,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-19 13:29:45,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-19 13:29:45,653 INFO L130 BoogieDeclarations]: Found specification of procedure oid_to_string [2021-11-19 13:29:45,654 INFO L138 BoogieDeclarations]: Found implementation of procedure oid_to_string [2021-11-19 13:29:45,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-19 13:29:45,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-19 13:29:45,654 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2021-11-19 13:29:45,654 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2021-11-19 13:29:45,654 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 13:29:45,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 13:29:45,655 INFO L130 BoogieDeclarations]: Found specification of procedure deauthenticate [2021-11-19 13:29:45,655 INFO L138 BoogieDeclarations]: Found implementation of procedure deauthenticate [2021-11-19 13:29:45,655 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-19 13:29:45,655 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-19 13:29:45,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-19 13:29:45,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-19 13:29:45,656 INFO L130 BoogieDeclarations]: Found specification of procedure bcm4320a_early_init [2021-11-19 13:29:45,656 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm4320a_early_init [2021-11-19 13:29:45,656 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_michael_mic_failure [2021-11-19 13:29:45,656 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_michael_mic_failure [2021-11-19 13:29:45,656 INFO L130 BoogieDeclarations]: Found specification of procedure set_default_iw_params [2021-11-19 13:29:45,656 INFO L138 BoogieDeclarations]: Found implementation of procedure set_default_iw_params [2021-11-19 13:29:45,656 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_error_status [2021-11-19 13:29:45,657 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_error_status [2021-11-19 13:29:45,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 13:29:45,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 13:29:45,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 13:29:45,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 13:29:45,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 13:29:45,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 13:29:45,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_command_lock_of_rndis_wlan_private [2021-11-19 13:29:45,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_command_lock_of_rndis_wlan_private [2021-11-19 13:29:45,662 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume_rx [2021-11-19 13:29:45,663 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume_rx [2021-11-19 13:29:45,663 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2021-11-19 13:29:45,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2021-11-19 13:29:45,663 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-19 13:29:45,664 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-19 13:29:45,664 INFO L130 BoogieDeclarations]: Found specification of procedure get_bcm4320_power_dbm [2021-11-19 13:29:45,664 INFO L138 BoogieDeclarations]: Found implementation of procedure get_bcm4320_power_dbm [2021-11-19 13:29:45,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 13:29:45,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 13:29:45,665 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-19 13:29:45,665 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-19 13:29:45,665 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_rx_fixup [2021-11-19 13:29:45,665 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_rx_fixup [2021-11-19 13:29:45,665 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_oid [2021-11-19 13:29:45,665 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_oid [2021-11-19 13:29:45,666 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_indication [2021-11-19 13:29:45,666 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_indication [2021-11-19 13:29:45,666 INFO L130 BoogieDeclarations]: Found specification of procedure get_bssid [2021-11-19 13:29:45,666 INFO L138 BoogieDeclarations]: Found implementation of procedure get_bssid [2021-11-19 13:29:45,666 INFO L130 BoogieDeclarations]: Found specification of procedure is_associated [2021-11-19 13:29:45,666 INFO L138 BoogieDeclarations]: Found implementation of procedure is_associated [2021-11-19 13:29:45,667 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-19 13:29:45,667 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2021-11-19 13:29:45,667 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2021-11-19 13:29:45,667 INFO L130 BoogieDeclarations]: Found specification of procedure debug_print_pmkids [2021-11-19 13:29:45,667 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_print_pmkids [2021-11-19 13:29:45,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-19 13:29:45,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-19 13:29:46,848 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 13:29:46,852 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 13:29:53,962 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 13:32:05,999 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-19 13:32:13,822 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 13:32:13,845 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 13:32:13,846 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 13:32:13,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:32:13 BoogieIcfgContainer [2021-11-19 13:32:13,853 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 13:32:13,855 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 13:32:13,855 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 13:32:13,858 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 13:32:13,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:29:38" (1/3) ... [2021-11-19 13:32:13,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@730beb64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:32:13, skipping insertion in model container [2021-11-19 13:32:13,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:44" (2/3) ... [2021-11-19 13:32:13,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@730beb64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:32:13, skipping insertion in model container [2021-11-19 13:32:13,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:32:13" (3/3) ... [2021-11-19 13:32:13,862 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i [2021-11-19 13:32:13,868 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 13:32:13,868 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-19 13:32:13,935 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 13:32:13,941 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 13:32:13,942 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-19 13:32:14,032 INFO L276 IsEmpty]: Start isEmpty. Operand has 2653 states, 1855 states have (on average 1.3067385444743935) internal successors, (2424), 1859 states have internal predecessors, (2424), 680 states have call successors, (680), 116 states have call predecessors, (680), 115 states have return successors, (672), 672 states have call predecessors, (672), 672 states have call successors, (672) [2021-11-19 13:32:14,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2021-11-19 13:32:14,072 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:32:14,073 INFO L514 BasicCegarLoop]: trace histogram [37, 37, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:32:14,074 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 13:32:14,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:32:14,080 INFO L85 PathProgramCache]: Analyzing trace with hash 972719217, now seen corresponding path program 1 times [2021-11-19 13:32:14,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:32:14,109 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1658209595] [2021-11-19 13:32:14,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:32:14,110 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:32:14,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efce502b-18d2-44a6-9068-3f1ff5c129be/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:32:14,114 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efce502b-18d2-44a6-9068-3f1ff5c129be/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:32:14,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efce502b-18d2-44a6-9068-3f1ff5c129be/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 13:32:17,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:32:18,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 4042 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:32:18,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:32:20,217 INFO L134 CoverageAnalysis]: Checked inductivity of 5778 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 5670 trivial. 0 not checked. [2021-11-19 13:32:20,217 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:32:21,987 INFO L134 CoverageAnalysis]: Checked inductivity of 5778 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5778 trivial. 0 not checked. [2021-11-19 13:32:21,988 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:32:21,988 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1658209595] [2021-11-19 13:32:21,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1658209595] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:32:21,989 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:32:21,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:32:21,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996286015] [2021-11-19 13:32:21,992 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:32:21,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:32:21,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:32:22,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:32:22,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:32:22,032 INFO L87 Difference]: Start difference. First operand has 2653 states, 1855 states have (on average 1.3067385444743935) internal successors, (2424), 1859 states have internal predecessors, (2424), 680 states have call successors, (680), 116 states have call predecessors, (680), 115 states have return successors, (672), 672 states have call predecessors, (672), 672 states have call successors, (672) Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 4 states have call successors, (43), 3 states have call predecessors, (43), 3 states have return successors, (41), 4 states have call predecessors, (41), 4 states have call successors, (41) [2021-11-19 13:32:51,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:32:51,959 INFO L93 Difference]: Finished difference Result 10165 states and 14965 transitions. [2021-11-19 13:32:51,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:32:51,961 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 4 states have call successors, (43), 3 states have call predecessors, (43), 3 states have return successors, (41), 4 states have call predecessors, (41), 4 states have call successors, (41) Word has length 430 [2021-11-19 13:32:51,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:32:52,051 INFO L225 Difference]: With dead ends: 10165 [2021-11-19 13:32:52,051 INFO L226 Difference]: Without dead ends: 7568 [2021-11-19 13:32:52,085 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 858 GetRequests, 856 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:32:52,089 INFO L933 BasicCegarLoop]: 4996 mSDtfsCounter, 9486 mSDsluCounter, 5869 mSDsCounter, 0 mSdLazyCounter, 1419 mSolverCounterSat, 1263 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9486 SdHoareTripleChecker+Valid, 10865 SdHoareTripleChecker+Invalid, 2682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1263 IncrementalHoareTripleChecker+Valid, 1419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.3s IncrementalHoareTripleChecker+Time [2021-11-19 13:32:52,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9486 Valid, 10865 Invalid, 2682 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1263 Valid, 1419 Invalid, 0 Unknown, 0 Unchecked, 29.3s Time] [2021-11-19 13:32:52,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7568 states. [2021-11-19 13:32:52,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7568 to 7550. [2021-11-19 13:32:52,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7550 states, 5325 states have (on average 1.3100469483568076) internal successors, (6976), 5333 states have internal predecessors, (6976), 1884 states have call successors, (1884), 339 states have call predecessors, (1884), 338 states have return successors, (1880), 1880 states have call predecessors, (1880), 1880 states have call successors, (1880) [2021-11-19 13:32:52,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7550 states to 7550 states and 10740 transitions. [2021-11-19 13:32:52,749 INFO L78 Accepts]: Start accepts. Automaton has 7550 states and 10740 transitions. Word has length 430 [2021-11-19 13:32:52,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:32:52,751 INFO L470 AbstractCegarLoop]: Abstraction has 7550 states and 10740 transitions. [2021-11-19 13:32:52,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 4 states have call successors, (43), 3 states have call predecessors, (43), 3 states have return successors, (41), 4 states have call predecessors, (41), 4 states have call successors, (41) [2021-11-19 13:32:52,752 INFO L276 IsEmpty]: Start isEmpty. Operand 7550 states and 10740 transitions. [2021-11-19 13:32:52,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2021-11-19 13:32:52,771 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:32:52,772 INFO L514 BasicCegarLoop]: trace histogram [37, 37, 36, 36, 36, 36, 36, 36, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:32:52,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efce502b-18d2-44a6-9068-3f1ff5c129be/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 13:32:52,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efce502b-18d2-44a6-9068-3f1ff5c129be/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:32:52,991 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 13:32:52,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:32:52,993 INFO L85 PathProgramCache]: Analyzing trace with hash 917712089, now seen corresponding path program 1 times [2021-11-19 13:32:52,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:32:52,997 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1879522222] [2021-11-19 13:32:52,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:32:52,997 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:32:52,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efce502b-18d2-44a6-9068-3f1ff5c129be/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:32:53,000 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efce502b-18d2-44a6-9068-3f1ff5c129be/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:32:53,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efce502b-18d2-44a6-9068-3f1ff5c129be/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 13:32:56,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:32:56,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 4213 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:32:56,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:32:58,621 INFO L134 CoverageAnalysis]: Checked inductivity of 5787 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 5679 trivial. 0 not checked. [2021-11-19 13:32:58,621 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:33:00,367 INFO L134 CoverageAnalysis]: Checked inductivity of 5787 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5787 trivial. 0 not checked. [2021-11-19 13:33:00,367 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:33:00,368 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1879522222] [2021-11-19 13:33:00,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1879522222] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:33:00,368 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:33:00,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:33:00,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818376078] [2021-11-19 13:33:00,369 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:33:00,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:33:00,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:33:00,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:33:00,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:33:00,373 INFO L87 Difference]: Start difference. First operand 7550 states and 10740 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 4 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (47), 4 states have call predecessors, (47), 4 states have call successors, (47) [2021-11-19 13:33:29,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:33:29,466 INFO L93 Difference]: Finished difference Result 24685 states and 35067 transitions. [2021-11-19 13:33:29,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:33:29,467 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 4 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (47), 4 states have call predecessors, (47), 4 states have call successors, (47) Word has length 451 [2021-11-19 13:33:29,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:33:29,637 INFO L225 Difference]: With dead ends: 24685 [2021-11-19 13:33:29,637 INFO L226 Difference]: Without dead ends: 17212 [2021-11-19 13:33:29,686 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 900 GetRequests, 898 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:33:29,687 INFO L933 BasicCegarLoop]: 4942 mSDtfsCounter, 7197 mSDsluCounter, 6882 mSDsCounter, 0 mSdLazyCounter, 1424 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7197 SdHoareTripleChecker+Valid, 11824 SdHoareTripleChecker+Invalid, 1461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.3s IncrementalHoareTripleChecker+Time [2021-11-19 13:33:29,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7197 Valid, 11824 Invalid, 1461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1424 Invalid, 0 Unknown, 0 Unchecked, 28.3s Time] [2021-11-19 13:33:29,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17212 states. [2021-11-19 13:33:30,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17212 to 17174. [2021-11-19 13:33:30,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17174 states, 12151 states have (on average 1.3103448275862069) internal successors, (15922), 12173 states have internal predecessors, (15922), 4226 states have call successors, (4226), 795 states have call predecessors, (4226), 794 states have return successors, (4222), 4212 states have call predecessors, (4222), 4222 states have call successors, (4222) [2021-11-19 13:33:31,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17174 states to 17174 states and 24370 transitions. [2021-11-19 13:33:31,059 INFO L78 Accepts]: Start accepts. Automaton has 17174 states and 24370 transitions. Word has length 451 [2021-11-19 13:33:31,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:33:31,071 INFO L470 AbstractCegarLoop]: Abstraction has 17174 states and 24370 transitions. [2021-11-19 13:33:31,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 4 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (47), 4 states have call predecessors, (47), 4 states have call successors, (47) [2021-11-19 13:33:31,073 INFO L276 IsEmpty]: Start isEmpty. Operand 17174 states and 24370 transitions. [2021-11-19 13:33:31,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2021-11-19 13:33:31,110 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:33:31,111 INFO L514 BasicCegarLoop]: trace histogram [37, 37, 36, 36, 36, 36, 36, 36, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:33:31,233 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efce502b-18d2-44a6-9068-3f1ff5c129be/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-19 13:33:31,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efce502b-18d2-44a6-9068-3f1ff5c129be/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:33:31,335 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 13:33:31,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:33:31,336 INFO L85 PathProgramCache]: Analyzing trace with hash -181016849, now seen corresponding path program 1 times [2021-11-19 13:33:31,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:33:31,342 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1500979807] [2021-11-19 13:33:31,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:33:31,343 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:33:31,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efce502b-18d2-44a6-9068-3f1ff5c129be/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:33:31,345 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efce502b-18d2-44a6-9068-3f1ff5c129be/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:33:31,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efce502b-18d2-44a6-9068-3f1ff5c129be/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 13:33:35,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:33:35,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 4214 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:33:35,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:33:37,429 INFO L134 CoverageAnalysis]: Checked inductivity of 5787 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 5679 trivial. 0 not checked. [2021-11-19 13:33:37,429 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:33:39,172 INFO L134 CoverageAnalysis]: Checked inductivity of 5787 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5787 trivial. 0 not checked. [2021-11-19 13:33:39,172 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:33:39,172 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1500979807] [2021-11-19 13:33:39,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1500979807] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:33:39,173 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:33:39,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:33:39,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707364839] [2021-11-19 13:33:39,174 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:33:39,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:33:39,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:33:39,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:33:39,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:33:39,178 INFO L87 Difference]: Start difference. First operand 17174 states and 24370 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 4 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (47), 4 states have call predecessors, (47), 4 states have call successors, (47) [2021-11-19 13:34:07,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:34:07,782 INFO L93 Difference]: Finished difference Result 62721 states and 88899 transitions. [2021-11-19 13:34:07,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:34:07,783 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 4 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (47), 4 states have call predecessors, (47), 4 states have call successors, (47) Word has length 452 [2021-11-19 13:34:07,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:34:08,153 INFO L225 Difference]: With dead ends: 62721 [2021-11-19 13:34:08,153 INFO L226 Difference]: Without dead ends: 45624 [2021-11-19 13:34:08,249 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 902 GetRequests, 900 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:34:08,253 INFO L933 BasicCegarLoop]: 5013 mSDtfsCounter, 7197 mSDsluCounter, 6641 mSDsCounter, 0 mSdLazyCounter, 1424 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7197 SdHoareTripleChecker+Valid, 11654 SdHoareTripleChecker+Invalid, 1461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.3s IncrementalHoareTripleChecker+Time [2021-11-19 13:34:08,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7197 Valid, 11654 Invalid, 1461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1424 Invalid, 0 Unknown, 0 Unchecked, 27.3s Time] [2021-11-19 13:34:08,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45624 states. [2021-11-19 13:34:10,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45624 to 45582. [2021-11-19 13:34:11,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45582 states, 32321 states have (on average 1.3098604622381733) internal successors, (42336), 32385 states have internal predecessors, (42336), 11096 states have call successors, (11096), 2163 states have call predecessors, (11096), 2162 states have return successors, (11092), 11052 states have call predecessors, (11092), 11092 states have call successors, (11092) [2021-11-19 13:34:11,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45582 states to 45582 states and 64524 transitions. [2021-11-19 13:34:11,448 INFO L78 Accepts]: Start accepts. Automaton has 45582 states and 64524 transitions. Word has length 452 [2021-11-19 13:34:11,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:34:11,449 INFO L470 AbstractCegarLoop]: Abstraction has 45582 states and 64524 transitions. [2021-11-19 13:34:11,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 4 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (47), 4 states have call predecessors, (47), 4 states have call successors, (47) [2021-11-19 13:34:11,450 INFO L276 IsEmpty]: Start isEmpty. Operand 45582 states and 64524 transitions. [2021-11-19 13:34:11,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 454 [2021-11-19 13:34:11,461 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:34:11,461 INFO L514 BasicCegarLoop]: trace histogram [37, 37, 36, 36, 36, 36, 36, 36, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:34:11,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efce502b-18d2-44a6-9068-3f1ff5c129be/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 13:34:11,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efce502b-18d2-44a6-9068-3f1ff5c129be/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:34:11,681 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 13:34:11,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:34:11,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1058463004, now seen corresponding path program 1 times [2021-11-19 13:34:11,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:34:11,686 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [468009382] [2021-11-19 13:34:11,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:34:11,689 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:34:11,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efce502b-18d2-44a6-9068-3f1ff5c129be/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:34:11,690 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efce502b-18d2-44a6-9068-3f1ff5c129be/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:34:11,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efce502b-18d2-44a6-9068-3f1ff5c129be/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 13:34:15,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:34:15,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 4215 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:34:15,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:34:17,784 INFO L134 CoverageAnalysis]: Checked inductivity of 5787 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 5679 trivial. 0 not checked. [2021-11-19 13:34:17,784 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:34:19,610 INFO L134 CoverageAnalysis]: Checked inductivity of 5787 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5787 trivial. 0 not checked. [2021-11-19 13:34:19,610 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:34:19,610 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [468009382] [2021-11-19 13:34:19,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [468009382] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:34:19,611 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:34:19,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:34:19,612 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872894652] [2021-11-19 13:34:19,612 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:34:19,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:34:19,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:34:19,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:34:19,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:34:19,614 INFO L87 Difference]: Start difference. First operand 45582 states and 64524 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 4 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (47), 4 states have call predecessors, (47), 4 states have call successors, (47) [2021-11-19 13:34:51,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:34:51,612 INFO L93 Difference]: Finished difference Result 170546 states and 241412 transitions. [2021-11-19 13:34:51,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:34:51,613 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 4 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (47), 4 states have call predecessors, (47), 4 states have call successors, (47) Word has length 453 [2021-11-19 13:34:51,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:34:52,614 INFO L225 Difference]: With dead ends: 170546 [2021-11-19 13:34:52,614 INFO L226 Difference]: Without dead ends: 125041 [2021-11-19 13:34:52,830 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 904 GetRequests, 902 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:34:52,832 INFO L933 BasicCegarLoop]: 5402 mSDtfsCounter, 9112 mSDsluCounter, 5844 mSDsCounter, 0 mSdLazyCounter, 1421 mSolverCounterSat, 1146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9112 SdHoareTripleChecker+Valid, 11246 SdHoareTripleChecker+Invalid, 2567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1146 IncrementalHoareTripleChecker+Valid, 1421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.2s IncrementalHoareTripleChecker+Time [2021-11-19 13:34:52,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9112 Valid, 11246 Invalid, 2567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1146 Valid, 1421 Invalid, 0 Unknown, 0 Unchecked, 28.2s Time] [2021-11-19 13:34:52,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125041 states. [2021-11-19 13:34:58,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125041 to 124995. [2021-11-19 13:34:58,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124995 states, 88748 states have (on average 1.3102830486320818) internal successors, (116285), 88938 states have internal predecessors, (116285), 30233 states have call successors, (30233), 6012 states have call predecessors, (30233), 6011 states have return successors, (30229), 30099 states have call predecessors, (30229), 30229 states have call successors, (30229) [2021-11-19 13:35:00,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124995 states to 124995 states and 176747 transitions. [2021-11-19 13:35:00,276 INFO L78 Accepts]: Start accepts. Automaton has 124995 states and 176747 transitions. Word has length 453 [2021-11-19 13:35:00,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:35:00,277 INFO L470 AbstractCegarLoop]: Abstraction has 124995 states and 176747 transitions. [2021-11-19 13:35:00,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 4 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (47), 4 states have call predecessors, (47), 4 states have call successors, (47) [2021-11-19 13:35:00,278 INFO L276 IsEmpty]: Start isEmpty. Operand 124995 states and 176747 transitions. [2021-11-19 13:35:00,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2021-11-19 13:35:00,286 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:35:00,287 INFO L514 BasicCegarLoop]: trace histogram [37, 37, 36, 36, 36, 36, 36, 36, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:35:00,367 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efce502b-18d2-44a6-9068-3f1ff5c129be/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-19 13:35:00,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efce502b-18d2-44a6-9068-3f1ff5c129be/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:35:00,506 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 13:35:00,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:35:00,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1137359935, now seen corresponding path program 1 times [2021-11-19 13:35:00,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:35:00,509 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2138560756] [2021-11-19 13:35:00,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:35:00,510 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:35:00,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efce502b-18d2-44a6-9068-3f1ff5c129be/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:35:00,511 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efce502b-18d2-44a6-9068-3f1ff5c129be/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:35:00,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efce502b-18d2-44a6-9068-3f1ff5c129be/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 13:35:03,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:35:03,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 4159 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:35:04,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:35:05,923 INFO L134 CoverageAnalysis]: Checked inductivity of 5781 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 5673 trivial. 0 not checked. [2021-11-19 13:35:05,923 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:35:07,768 INFO L134 CoverageAnalysis]: Checked inductivity of 5781 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5781 trivial. 0 not checked. [2021-11-19 13:35:07,768 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:35:07,769 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2138560756] [2021-11-19 13:35:07,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2138560756] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:35:07,769 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:35:07,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:35:07,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523604328] [2021-11-19 13:35:07,770 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:35:07,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:35:07,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:35:07,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:35:07,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:35:07,772 INFO L87 Difference]: Start difference. First operand 124995 states and 176747 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 4 states have call successors, (49), 3 states have call predecessors, (49), 3 states have return successors, (45), 4 states have call predecessors, (45), 4 states have call successors, (45) [2021-11-19 13:35:45,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:35:45,579 INFO L93 Difference]: Finished difference Result 484087 states and 684902 transitions. [2021-11-19 13:35:45,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:35:45,583 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 4 states have call successors, (49), 3 states have call predecessors, (49), 3 states have return successors, (45), 4 states have call predecessors, (45), 4 states have call successors, (45) Word has length 457 [2021-11-19 13:35:45,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:35:47,453 INFO L225 Difference]: With dead ends: 484087 [2021-11-19 13:35:47,453 INFO L226 Difference]: Without dead ends: 359169 [2021-11-19 13:35:47,825 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 912 GetRequests, 910 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:35:47,825 INFO L933 BasicCegarLoop]: 5216 mSDtfsCounter, 9161 mSDsluCounter, 5862 mSDsCounter, 0 mSdLazyCounter, 1399 mSolverCounterSat, 1184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9161 SdHoareTripleChecker+Valid, 11078 SdHoareTripleChecker+Invalid, 2583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1184 IncrementalHoareTripleChecker+Valid, 1399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.6s IncrementalHoareTripleChecker+Time [2021-11-19 13:35:47,826 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9161 Valid, 11078 Invalid, 2583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1184 Valid, 1399 Invalid, 0 Unknown, 0 Unchecked, 26.6s Time] [2021-11-19 13:35:48,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359169 states.