./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF --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 4035b79a2162ba317b65ff4b4b50beff318d26f8217214f4a55e9e0e820898d1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:35:32,589 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:35:32,592 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:35:32,644 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:35:32,645 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:35:32,649 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:35:32,651 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:35:32,655 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:35:32,658 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:35:32,663 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:35:32,664 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:35:32,666 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:35:32,667 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:35:32,669 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:35:32,672 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:35:32,678 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:35:32,680 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:35:32,682 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:35:32,684 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:35:32,695 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:35:32,697 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:35:32,698 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:35:32,702 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:35:32,703 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:35:32,712 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:35:32,712 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:35:32,713 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:35:32,715 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:35:32,716 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:35:32,717 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:35:32,718 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:35:32,718 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:35:32,720 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:35:32,722 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:35:32,723 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:35:32,723 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:35:32,724 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:35:32,724 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:35:32,725 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:35:32,726 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:35:32,726 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:35:32,727 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 22:35:32,769 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:35:32,769 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:35:32,771 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:35:32,771 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:35:32,772 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:35:32,772 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:35:32,772 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:35:32,772 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:35:32,773 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:35:32,773 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:35:32,774 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:35:32,774 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:35:32,774 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:35:32,775 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:35:32,775 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:35:32,775 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:35:32,776 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:35:32,776 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:35:32,776 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:35:32,776 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:35:32,777 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:35:32,777 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:35:32,777 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:35:32,777 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:35:32,778 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:35:32,778 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:35:32,778 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:35:32,778 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:35:32,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:35:32,781 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:35:32,781 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:35:32,781 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:35:32,781 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:35:32,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:35:32,782 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:35:32,782 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:35:32,782 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:35:32,782 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_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4035b79a2162ba317b65ff4b4b50beff318d26f8217214f4a55e9e0e820898d1 [2021-11-12 22:35:33,068 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:35:33,089 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:35:33,092 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:35:33,093 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:35:33,094 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:35:33,095 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i [2021-11-12 22:35:33,158 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/data/5d74c4b15/c44296553c1c40139d07c9b2ee3a4293/FLAGe87fefbe3 [2021-11-12 22:35:34,086 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:35:34,087 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i [2021-11-12 22:35:34,146 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/data/5d74c4b15/c44296553c1c40139d07c9b2ee3a4293/FLAGe87fefbe3 [2021-11-12 22:35:34,540 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/data/5d74c4b15/c44296553c1c40139d07c9b2ee3a4293 [2021-11-12 22:35:34,543 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:35:34,544 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:35:34,546 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:35:34,546 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:35:34,549 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:35:34,550 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:35:34" (1/1) ... [2021-11-12 22:35:34,551 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@87b08b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:34, skipping insertion in model container [2021-11-12 22:35:34,551 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:35:34" (1/1) ... [2021-11-12 22:35:34,558 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:35:34,751 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:35:36,897 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:35:36,906 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:35:37,711 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:35:37,720 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:35:38,431 WARN L228 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_1a268fec-ba2b-4f40-9852-27417bbeb554/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i[387172,387185] [2021-11-12 22:35:38,434 WARN L228 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_1a268fec-ba2b-4f40-9852-27417bbeb554/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i[387338,387351] [2021-11-12 22:35:38,435 WARN L228 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_1a268fec-ba2b-4f40-9852-27417bbeb554/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i[387502,387515] [2021-11-12 22:35:38,437 WARN L228 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_1a268fec-ba2b-4f40-9852-27417bbeb554/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i[387667,387680] [2021-11-12 22:35:38,461 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:35:38,535 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) [2021-11-12 22:35:38,535 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@20462a4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:38, skipping insertion in model container [2021-11-12 22:35:38,536 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:35:38,536 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 22:35:38,538 INFO L158 Benchmark]: Toolchain (without parser) took 3992.61ms. Allocated memory was 98.6MB in the beginning and 134.2MB in the end (delta: 35.7MB). Free memory was 64.1MB in the beginning and 81.9MB in the end (delta: -17.9MB). Peak memory consumption was 58.5MB. Max. memory is 16.1GB. [2021-11-12 22:35:38,538 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 98.6MB. Free memory is still 73.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:35:38,539 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3990.06ms. Allocated memory was 98.6MB in the beginning and 134.2MB in the end (delta: 35.7MB). Free memory was 63.8MB in the beginning and 81.9MB in the end (delta: -18.1MB). Peak memory consumption was 56.4MB. Max. memory is 16.1GB. [2021-11-12 22:35:38,541 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 98.6MB. Free memory is still 73.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3990.06ms. Allocated memory was 98.6MB in the beginning and 134.2MB in the end (delta: 35.7MB). Free memory was 63.8MB in the beginning and 81.9MB in the end (delta: -18.1MB). Peak memory consumption was 56.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 4822]: 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_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF --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 4035b79a2162ba317b65ff4b4b50beff318d26f8217214f4a55e9e0e820898d1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:35:40,837 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:35:40,839 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:35:40,886 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:35:40,886 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:35:40,891 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:35:40,893 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:35:40,902 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:35:40,905 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:35:40,915 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:35:40,916 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:35:40,918 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:35:40,919 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:35:40,920 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:35:40,921 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:35:40,923 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:35:40,924 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:35:40,925 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:35:40,927 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:35:40,929 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:35:40,931 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:35:40,932 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:35:40,934 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:35:40,934 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:35:40,938 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:35:40,939 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:35:40,939 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:35:40,940 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:35:40,940 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:35:40,942 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:35:40,942 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:35:40,943 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:35:40,944 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:35:40,945 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:35:40,946 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:35:40,947 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:35:40,947 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:35:40,948 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:35:40,948 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:35:40,949 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:35:40,950 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:35:40,951 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 22:35:40,977 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:35:40,977 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:35:40,978 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:35:40,979 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:35:40,979 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:35:40,979 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:35:40,979 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:35:40,980 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:35:40,980 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:35:40,980 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:35:40,981 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:35:40,981 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:35:40,981 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:35:40,986 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:35:40,987 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:35:40,987 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:35:40,987 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 22:35:40,987 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 22:35:40,987 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:35:40,988 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:35:40,988 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:35:40,988 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:35:40,988 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 22:35:40,989 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:35:40,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:35:40,989 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:35:40,989 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:35:40,990 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:35:40,991 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 22:35:40,991 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 22:35:40,991 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:35:40,991 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:35:40,991 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:35:40,992 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_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4035b79a2162ba317b65ff4b4b50beff318d26f8217214f4a55e9e0e820898d1 [2021-11-12 22:35:41,428 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:35:41,457 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:35:41,461 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:35:41,462 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:35:41,463 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:35:41,465 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i [2021-11-12 22:35:41,544 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/data/d9c001652/59bf6ab586ae4d3187917a14ab11ea88/FLAGa89954432 [2021-11-12 22:35:42,623 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:35:42,624 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i [2021-11-12 22:35:42,675 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/data/d9c001652/59bf6ab586ae4d3187917a14ab11ea88/FLAGa89954432 [2021-11-12 22:35:42,974 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/data/d9c001652/59bf6ab586ae4d3187917a14ab11ea88 [2021-11-12 22:35:42,976 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:35:42,978 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:35:42,992 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:35:42,992 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:35:42,995 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:35:42,996 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:35:42" (1/1) ... [2021-11-12 22:35:42,997 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75640580 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:42, skipping insertion in model container [2021-11-12 22:35:42,997 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:35:42" (1/1) ... [2021-11-12 22:35:43,004 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:35:43,203 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:35:46,645 WARN L228 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_1a268fec-ba2b-4f40-9852-27417bbeb554/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i[387172,387185] [2021-11-12 22:35:46,649 WARN L228 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_1a268fec-ba2b-4f40-9852-27417bbeb554/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i[387338,387351] [2021-11-12 22:35:46,649 WARN L228 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_1a268fec-ba2b-4f40-9852-27417bbeb554/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i[387502,387515] [2021-11-12 22:35:46,650 WARN L228 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_1a268fec-ba2b-4f40-9852-27417bbeb554/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i[387667,387680] [2021-11-12 22:35:46,682 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:35:46,745 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 22:35:46,883 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:35:47,314 WARN L228 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_1a268fec-ba2b-4f40-9852-27417bbeb554/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i[387172,387185] [2021-11-12 22:35:47,314 WARN L228 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_1a268fec-ba2b-4f40-9852-27417bbeb554/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i[387338,387351] [2021-11-12 22:35:47,315 WARN L228 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_1a268fec-ba2b-4f40-9852-27417bbeb554/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i[387502,387515] [2021-11-12 22:35:47,316 WARN L228 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_1a268fec-ba2b-4f40-9852-27417bbeb554/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i[387667,387680] [2021-11-12 22:35:47,324 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:35:47,397 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:35:47,998 WARN L228 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_1a268fec-ba2b-4f40-9852-27417bbeb554/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i[387172,387185] [2021-11-12 22:35:47,998 WARN L228 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_1a268fec-ba2b-4f40-9852-27417bbeb554/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i[387338,387351] [2021-11-12 22:35:47,999 WARN L228 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_1a268fec-ba2b-4f40-9852-27417bbeb554/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i[387502,387515] [2021-11-12 22:35:47,999 WARN L228 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_1a268fec-ba2b-4f40-9852-27417bbeb554/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i[387667,387680] [2021-11-12 22:35:48,016 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:35:48,276 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:35:48,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:48 WrapperNode [2021-11-12 22:35:48,276 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:35:48,278 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:35:48,278 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:35:48,279 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:35:48,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:48" (1/1) ... [2021-11-12 22:35:48,431 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:48" (1/1) ... [2021-11-12 22:35:48,749 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:35:48,750 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:35:48,750 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:35:48,750 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:35:48,758 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:48" (1/1) ... [2021-11-12 22:35:48,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:48" (1/1) ... [2021-11-12 22:35:48,797 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:48" (1/1) ... [2021-11-12 22:35:48,798 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:48" (1/1) ... [2021-11-12 22:35:49,076 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:48" (1/1) ... [2021-11-12 22:35:49,113 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:48" (1/1) ... [2021-11-12 22:35:49,184 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:48" (1/1) ... [2021-11-12 22:35:49,222 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:35:49,223 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:35:49,223 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:35:49,223 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:35:49,224 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:48" (1/1) ... [2021-11-12 22:35:49,231 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:35:49,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:35:49,256 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:35:49,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:35:49,310 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_evict_inode [2021-11-12 22:35:49,310 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_evict_inode [2021-11-12 22:35:49,311 INFO L130 BoogieDeclarations]: Found specification of procedure dput [2021-11-12 22:35:49,311 INFO L138 BoogieDeclarations]: Found implementation of procedure dput [2021-11-12 22:35:49,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-12 22:35:49,311 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-12 22:35:49,311 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_unlink [2021-11-12 22:35:49,311 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_unlink [2021-11-12 22:35:49,312 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_wq_mutex_of_autofs_sb_info [2021-11-12 22:35:49,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_wq_mutex_of_autofs_sb_info [2021-11-12 22:35:49,312 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_get_inode [2021-11-12 22:35:49,312 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_get_inode [2021-11-12 22:35:49,312 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-11-12 22:35:49,312 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-11-12 22:35:49,313 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-12 22:35:49,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-12 22:35:49,313 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_dir_lseek [2021-11-12 22:35:49,313 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_dir_lseek [2021-11-12 22:35:49,313 INFO L130 BoogieDeclarations]: Found specification of procedure do_expire_wait [2021-11-12 22:35:49,313 INFO L138 BoogieDeclarations]: Found implementation of procedure do_expire_wait [2021-11-12 22:35:49,314 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2021-11-12 22:35:49,314 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2021-11-12 22:35:49,314 INFO L130 BoogieDeclarations]: Found specification of procedure dget [2021-11-12 22:35:49,314 INFO L138 BoogieDeclarations]: Found implementation of procedure dget [2021-11-12 22:35:49,314 INFO L130 BoogieDeclarations]: Found specification of procedure lock_release [2021-11-12 22:35:49,314 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_release [2021-11-12 22:35:49,315 INFO L130 BoogieDeclarations]: Found specification of procedure current_kernel_time [2021-11-12 22:35:49,315 INFO L138 BoogieDeclarations]: Found implementation of procedure current_kernel_time [2021-11-12 22:35:49,315 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_expire_indirect [2021-11-12 22:35:49,315 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_expire_indirect [2021-11-12 22:35:49,316 INFO L130 BoogieDeclarations]: Found specification of procedure new_encode_dev [2021-11-12 22:35:49,316 INFO L138 BoogieDeclarations]: Found implementation of procedure new_encode_dev [2021-11-12 22:35:49,316 INFO L130 BoogieDeclarations]: Found specification of procedure managed_dentry_clear_managed [2021-11-12 22:35:49,316 INFO L138 BoogieDeclarations]: Found implementation of procedure managed_dentry_clear_managed [2021-11-12 22:35:49,316 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-12 22:35:49,317 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-12 22:35:49,317 INFO L130 BoogieDeclarations]: Found specification of procedure from_kgid_munged [2021-11-12 22:35:49,317 INFO L138 BoogieDeclarations]: Found implementation of procedure from_kgid_munged [2021-11-12 22:35:49,317 INFO L130 BoogieDeclarations]: Found specification of procedure follow_down_one [2021-11-12 22:35:49,317 INFO L138 BoogieDeclarations]: Found implementation of procedure follow_down_one [2021-11-12 22:35:49,318 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_show_options [2021-11-12 22:35:49,318 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_show_options [2021-11-12 22:35:49,318 INFO L130 BoogieDeclarations]: Found specification of procedure __autofs4_add_expiring [2021-11-12 22:35:49,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __autofs4_add_expiring [2021-11-12 22:35:49,319 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-12 22:35:49,320 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_expire_wait [2021-11-12 22:35:49,320 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_expire_wait [2021-11-12 22:35:49,321 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_dev_ioctl [2021-11-12 22:35:49,321 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_dev_ioctl [2021-11-12 22:35:49,321 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-12 22:35:49,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-12 22:35:49,322 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2021-11-12 22:35:49,322 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2021-11-12 22:35:49,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-12 22:35:49,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-12 22:35:49,323 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-12 22:35:49,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-12 22:35:49,323 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-12 22:35:49,323 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-12 22:35:49,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:35:49,324 INFO L130 BoogieDeclarations]: Found specification of procedure d_count [2021-11-12 22:35:49,324 INFO L138 BoogieDeclarations]: Found implementation of procedure d_count [2021-11-12 22:35:49,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-12 22:35:49,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 22:35:49,325 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-11-12 22:35:49,325 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-11-12 22:35:49,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 22:35:49,325 INFO L130 BoogieDeclarations]: Found specification of procedure get_current___4 [2021-11-12 22:35:49,325 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current___4 [2021-11-12 22:35:49,326 INFO L130 BoogieDeclarations]: Found specification of procedure get_current___2 [2021-11-12 22:35:49,326 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current___2 [2021-11-12 22:35:49,326 INFO L130 BoogieDeclarations]: Found specification of procedure from_kuid_munged [2021-11-12 22:35:49,326 INFO L138 BoogieDeclarations]: Found implementation of procedure from_kuid_munged [2021-11-12 22:35:49,326 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-12 22:35:49,326 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-12 22:35:49,327 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-12 22:35:49,327 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-12 22:35:49,328 INFO L130 BoogieDeclarations]: Found specification of procedure fput [2021-11-12 22:35:49,328 INFO L138 BoogieDeclarations]: Found implementation of procedure fput [2021-11-12 22:35:49,328 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_oz_mode [2021-11-12 22:35:49,328 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_oz_mode [2021-11-12 22:35:49,328 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_do_expire_multi [2021-11-12 22:35:49,329 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_do_expire_multi [2021-11-12 22:35:49,329 INFO L130 BoogieDeclarations]: Found specification of procedure __task_pid_nr_ns [2021-11-12 22:35:49,329 INFO L138 BoogieDeclarations]: Found implementation of procedure __task_pid_nr_ns [2021-11-12 22:35:49,329 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-12 22:35:49,330 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-12 22:35:49,330 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_sbi [2021-11-12 22:35:49,330 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_sbi [2021-11-12 22:35:49,330 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-12 22:35:49,330 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-12 22:35:49,330 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_new_ino [2021-11-12 22:35:49,331 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_new_ino [2021-11-12 22:35:49,331 INFO L130 BoogieDeclarations]: Found specification of procedure simple_empty [2021-11-12 22:35:49,331 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_empty [2021-11-12 22:35:49,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-12 22:35:49,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-12 22:35:49,331 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_can_expire [2021-11-12 22:35:49,332 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_can_expire [2021-11-12 22:35:49,332 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dentry_ino [2021-11-12 22:35:49,332 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dentry_ino [2021-11-12 22:35:49,332 INFO L130 BoogieDeclarations]: Found specification of procedure fget [2021-11-12 22:35:49,332 INFO L138 BoogieDeclarations]: Found implementation of procedure fget [2021-11-12 22:35:49,333 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_open [2021-11-12 22:35:49,335 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_open [2021-11-12 22:35:49,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-12 22:35:49,337 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-12 22:35:49,337 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_rmdir [2021-11-12 22:35:49,337 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_rmdir [2021-11-12 22:35:49,338 INFO L130 BoogieDeclarations]: Found specification of procedure may_umount [2021-11-12 22:35:49,338 INFO L138 BoogieDeclarations]: Found implementation of procedure may_umount [2021-11-12 22:35:49,338 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_dev_ioctl_exit [2021-11-12 22:35:49,339 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_dev_ioctl_exit [2021-11-12 22:35:49,339 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2021-11-12 22:35:49,345 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2021-11-12 22:35:49,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-12 22:35:49,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-12 22:35:49,345 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_dir_open [2021-11-12 22:35:49,345 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_dir_open [2021-11-12 22:35:49,346 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-11-12 22:35:49,346 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-11-12 22:35:49,346 INFO L130 BoogieDeclarations]: Found specification of procedure clear_nlink [2021-11-12 22:35:49,346 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_nlink [2021-11-12 22:35:49,346 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-12 22:35:49,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-12 22:35:49,347 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_type_trigger [2021-11-12 22:35:49,347 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_type_trigger [2021-11-12 22:35:49,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 22:35:49,347 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2021-11-12 22:35:49,347 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2021-11-12 22:35:49,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-12 22:35:49,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-12 22:35:49,348 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-12 22:35:49,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-12 22:35:49,348 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2021-11-12 22:35:49,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2021-11-12 22:35:49,348 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-12 22:35:49,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-12 22:35:49,348 INFO L130 BoogieDeclarations]: Found specification of procedure memchr [2021-11-12 22:35:49,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2021-11-12 22:35:49,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2021-11-12 22:35:49,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-12 22:35:49,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-12 22:35:49,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 22:35:49,349 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-12 22:35:49,349 INFO L130 BoogieDeclarations]: Found specification of procedure simple_positive [2021-11-12 22:35:49,350 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_positive [2021-11-12 22:35:49,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-12 22:35:49,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-12 22:35:49,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-12 22:35:49,350 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-11-12 22:35:49,350 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-11-12 22:35:49,350 INFO L130 BoogieDeclarations]: Found specification of procedure path_get [2021-11-12 22:35:49,351 INFO L138 BoogieDeclarations]: Found implementation of procedure path_get [2021-11-12 22:35:49,351 INFO L130 BoogieDeclarations]: Found specification of procedure dget_dlock [2021-11-12 22:35:49,351 INFO L138 BoogieDeclarations]: Found implementation of procedure dget_dlock [2021-11-12 22:35:49,351 INFO L130 BoogieDeclarations]: Found specification of procedure d_lookup [2021-11-12 22:35:49,351 INFO L138 BoogieDeclarations]: Found implementation of procedure d_lookup [2021-11-12 22:35:49,351 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-11-12 22:35:49,351 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-11-12 22:35:49,352 INFO L130 BoogieDeclarations]: Found specification of procedure recalc_sigpending [2021-11-12 22:35:49,352 INFO L138 BoogieDeclarations]: Found implementation of procedure recalc_sigpending [2021-11-12 22:35:49,352 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-11-12 22:35:49,352 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-11-12 22:35:49,352 INFO L130 BoogieDeclarations]: Found specification of procedure d_drop [2021-11-12 22:35:49,352 INFO L138 BoogieDeclarations]: Found implementation of procedure d_drop [2021-11-12 22:35:49,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-12 22:35:49,353 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_mount [2021-11-12 22:35:49,353 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_mount [2021-11-12 22:35:49,353 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_type_indirect [2021-11-12 22:35:49,353 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_type_indirect [2021-11-12 22:35:49,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:35:49,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:35:49,354 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_mount_wait [2021-11-12 22:35:49,354 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_mount_wait [2021-11-12 22:35:49,354 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-12 22:35:49,354 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-12 22:35:49,355 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_root_ioctl [2021-11-12 22:35:49,356 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_root_ioctl [2021-11-12 22:35:49,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 22:35:49,356 INFO L130 BoogieDeclarations]: Found specification of procedure complete_all [2021-11-12 22:35:49,357 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_all [2021-11-12 22:35:49,357 INFO L130 BoogieDeclarations]: Found specification of procedure __kuid_val [2021-11-12 22:35:49,357 INFO L138 BoogieDeclarations]: Found implementation of procedure __kuid_val [2021-11-12 22:35:49,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 22:35:49,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 22:35:49,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-12 22:35:49,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-12 22:35:49,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-12 22:35:49,358 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_wait_release [2021-11-12 22:35:49,358 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_wait_release [2021-11-12 22:35:49,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-12 22:35:49,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-12 22:35:49,358 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_root_ioctl_unlocked [2021-11-12 22:35:49,358 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_root_ioctl_unlocked [2021-11-12 22:35:49,358 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2021-11-12 22:35:49,359 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2021-11-12 22:35:49,359 INFO L130 BoogieDeclarations]: Found specification of procedure task_pgrp [2021-11-12 22:35:49,359 INFO L138 BoogieDeclarations]: Found implementation of procedure task_pgrp [2021-11-12 22:35:49,359 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-12 22:35:49,359 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-12 22:35:49,359 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_root_compat_ioctl [2021-11-12 22:35:49,359 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_root_compat_ioctl [2021-11-12 22:35:49,360 INFO L130 BoogieDeclarations]: Found specification of procedure read_seqretry [2021-11-12 22:35:49,360 INFO L138 BoogieDeclarations]: Found implementation of procedure read_seqretry [2021-11-12 22:35:49,360 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2021-11-12 22:35:49,360 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2021-11-12 22:35:49,360 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_readdir [2021-11-12 22:35:49,360 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_readdir [2021-11-12 22:35:49,360 INFO L130 BoogieDeclarations]: Found specification of procedure d_instantiate [2021-11-12 22:35:49,361 INFO L138 BoogieDeclarations]: Found implementation of procedure d_instantiate [2021-11-12 22:35:49,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_pipe_mutex_of_autofs_sb_info [2021-11-12 22:35:49,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_pipe_mutex_of_autofs_sb_info [2021-11-12 22:35:49,361 INFO L130 BoogieDeclarations]: Found specification of procedure may_umount_tree [2021-11-12 22:35:49,361 INFO L138 BoogieDeclarations]: Found implementation of procedure may_umount_tree [2021-11-12 22:35:49,361 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-12 22:35:49,361 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-12 22:35:49,362 INFO L130 BoogieDeclarations]: Found specification of procedure simple_statfs [2021-11-12 22:35:49,362 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_statfs [2021-11-12 22:35:49,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-12 22:35:49,362 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-12 22:35:49,362 INFO L130 BoogieDeclarations]: Found specification of procedure get_task_pid [2021-11-12 22:35:49,362 INFO L138 BoogieDeclarations]: Found implementation of procedure get_task_pid [2021-11-12 22:35:49,362 INFO L130 BoogieDeclarations]: Found specification of procedure path_put [2021-11-12 22:35:49,362 INFO L138 BoogieDeclarations]: Found implementation of procedure path_put [2021-11-12 22:35:49,363 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_mount_busy [2021-11-12 22:35:49,363 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_mount_busy [2021-11-12 22:35:49,363 INFO L130 BoogieDeclarations]: Found specification of procedure d_unhashed [2021-11-12 22:35:49,363 INFO L138 BoogieDeclarations]: Found implementation of procedure d_unhashed [2021-11-12 22:35:49,363 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-11-12 22:35:49,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-11-12 22:35:49,364 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_kill_sb [2021-11-12 22:35:49,368 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_kill_sb [2021-11-12 22:35:49,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:35:49,368 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-12 22:35:49,368 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-12 22:35:49,369 INFO L130 BoogieDeclarations]: Found specification of procedure generic_read_dir [2021-11-12 22:35:49,369 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_read_dir [2021-11-12 22:35:49,369 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2021-11-12 22:35:49,369 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2021-11-12 22:35:49,369 INFO L130 BoogieDeclarations]: Found specification of procedure managed_dentry_set_managed [2021-11-12 22:35:49,370 INFO L138 BoogieDeclarations]: Found implementation of procedure managed_dentry_set_managed [2021-11-12 22:35:49,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 22:35:49,371 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2021-11-12 22:35:49,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2021-11-12 22:35:49,371 INFO L130 BoogieDeclarations]: Found specification of procedure put_pid [2021-11-12 22:35:49,371 INFO L138 BoogieDeclarations]: Found implementation of procedure put_pid [2021-11-12 22:35:49,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 22:35:49,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 22:35:49,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-12 22:35:49,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 22:35:49,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 22:35:49,372 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-12 22:35:49,372 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-12 22:35:49,372 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-12 22:35:49,372 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-12 22:35:49,373 INFO L130 BoogieDeclarations]: Found specification of procedure find_autofs_mount [2021-11-12 22:35:49,373 INFO L138 BoogieDeclarations]: Found implementation of procedure find_autofs_mount [2021-11-12 22:35:49,373 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-12 22:35:49,373 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-12 22:35:49,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_or_killable_wq_mutex_of_autofs_sb_info [2021-11-12 22:35:49,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_or_killable_wq_mutex_of_autofs_sb_info [2021-11-12 22:35:49,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-12 22:35:49,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-12 22:35:49,374 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_dir_close [2021-11-12 22:35:49,374 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_dir_close [2021-11-12 22:35:49,374 INFO L130 BoogieDeclarations]: Found specification of procedure ns_of_pid [2021-11-12 22:35:49,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_of_pid [2021-11-12 22:35:49,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-12 22:35:49,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-12 22:35:49,374 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-12 22:35:49,374 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-12 22:35:49,375 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_clean_ino [2021-11-12 22:35:49,375 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_clean_ino [2021-11-12 22:35:49,375 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_wq_mutex_of_autofs_sb_info [2021-11-12 22:35:49,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_wq_mutex_of_autofs_sb_info [2021-11-12 22:35:49,375 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_LONG [2021-11-12 22:35:49,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_LONG [2021-11-12 22:35:49,375 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-12 22:35:49,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-12 22:35:49,376 INFO L130 BoogieDeclarations]: Found specification of procedure kern_path_mountpoint [2021-11-12 22:35:49,376 INFO L138 BoogieDeclarations]: Found implementation of procedure kern_path_mountpoint [2021-11-12 22:35:49,376 INFO L130 BoogieDeclarations]: Found specification of procedure get_next_positive_dentry [2021-11-12 22:35:49,376 INFO L138 BoogieDeclarations]: Found implementation of procedure get_next_positive_dentry [2021-11-12 22:35:49,376 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-12 22:35:49,376 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-12 22:35:49,376 INFO L130 BoogieDeclarations]: Found specification of procedure __managed_dentry_set_managed [2021-11-12 22:35:49,377 INFO L138 BoogieDeclarations]: Found implementation of procedure __managed_dentry_set_managed [2021-11-12 22:35:49,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-12 22:35:49,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-12 22:35:49,377 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_wait [2021-11-12 22:35:49,377 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_wait [2021-11-12 22:35:49,377 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2021-11-12 22:35:49,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2021-11-12 22:35:49,377 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_find_wait [2021-11-12 22:35:49,378 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_find_wait [2021-11-12 22:35:49,378 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2021-11-12 22:35:49,378 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2021-11-12 22:35:49,378 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_exit_autofs4_fs_8_2 [2021-11-12 22:35:49,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_exit_autofs4_fs_8_2 [2021-11-12 22:35:49,378 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dentry_release [2021-11-12 22:35:49,378 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dentry_release [2021-11-12 22:35:49,379 INFO L130 BoogieDeclarations]: Found specification of procedure task_pgrp_nr [2021-11-12 22:35:49,379 INFO L138 BoogieDeclarations]: Found implementation of procedure task_pgrp_nr [2021-11-12 22:35:49,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-12 22:35:49,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-12 22:35:49,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-12 22:35:49,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-12 22:35:49,379 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-12 22:35:49,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-12 22:35:49,380 INFO L130 BoogieDeclarations]: Found specification of procedure uid_eq [2021-11-12 22:35:49,380 INFO L138 BoogieDeclarations]: Found implementation of procedure uid_eq [2021-11-12 22:35:49,380 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_symlink [2021-11-12 22:35:49,380 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_symlink [2021-11-12 22:35:49,380 INFO L130 BoogieDeclarations]: Found specification of procedure __kgid_val [2021-11-12 22:35:49,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __kgid_val [2021-11-12 22:35:49,380 INFO L130 BoogieDeclarations]: Found specification of procedure lock_acquire [2021-11-12 22:35:49,380 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_acquire [2021-11-12 22:35:49,381 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-12 22:35:49,381 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-12 22:35:49,381 INFO L130 BoogieDeclarations]: Found specification of procedure d_mountpoint [2021-11-12 22:35:49,381 INFO L138 BoogieDeclarations]: Found implementation of procedure d_mountpoint [2021-11-12 22:35:49,381 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-11-12 22:35:49,381 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-11-12 22:35:49,381 INFO L130 BoogieDeclarations]: Found specification of procedure have_submounts [2021-11-12 22:35:49,382 INFO L138 BoogieDeclarations]: Found implementation of procedure have_submounts [2021-11-12 22:35:49,382 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2021-11-12 22:35:49,382 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2021-11-12 22:35:49,382 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-11-12 22:35:49,382 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-11-12 22:35:49,382 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-12 22:35:49,382 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-12 22:35:49,382 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-12 22:35:49,383 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-12 22:35:49,383 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_prepare_pipe [2021-11-12 22:35:49,383 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_prepare_pipe [2021-11-12 22:35:49,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-12 22:35:49,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-12 22:35:49,383 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_del_active [2021-11-12 22:35:49,383 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_del_active [2021-11-12 22:35:49,383 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-12 22:35:49,384 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-12 22:35:49,384 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_nested [2021-11-12 22:35:49,384 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_nested [2021-11-12 22:35:49,384 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2021-11-12 22:35:49,384 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2021-11-12 22:35:49,384 INFO L130 BoogieDeclarations]: Found specification of procedure d_add [2021-11-12 22:35:49,384 INFO L138 BoogieDeclarations]: Found implementation of procedure d_add [2021-11-12 22:35:49,384 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_catatonic_mode [2021-11-12 22:35:49,385 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_catatonic_mode [2021-11-12 22:35:49,385 INFO L130 BoogieDeclarations]: Found specification of procedure gid_eq [2021-11-12 22:35:49,385 INFO L138 BoogieDeclarations]: Found implementation of procedure gid_eq [2021-11-12 22:35:49,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-12 22:35:49,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-12 22:35:49,385 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-12 22:35:49,385 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2021-11-12 22:35:49,386 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2021-11-12 22:35:51,128 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-12 22:35:58,164 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint switch_break: call ULTIMATE.dealloc(~#descriptor~12#1.base, ~#descriptor~12#1.offset);havoc ~#descriptor~12#1.base, ~#descriptor~12#1.offset; [2021-11-12 22:37:22,302 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-12 22:37:24,026 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:37:24,027 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2021-11-12 22:37:24,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:37:24 BoogieIcfgContainer [2021-11-12 22:37:24,035 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:37:24,036 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:37:24,037 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:37:24,039 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:37:24,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:35:42" (1/3) ... [2021-11-12 22:37:24,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c55545b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:37:24, skipping insertion in model container [2021-11-12 22:37:24,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:48" (2/3) ... [2021-11-12 22:37:24,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c55545b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:37:24, skipping insertion in model container [2021-11-12 22:37:24,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:37:24" (3/3) ... [2021-11-12 22:37:24,042 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i [2021-11-12 22:37:24,047 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:37:24,048 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-12 22:37:24,108 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:37:24,114 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 [2021-11-12 22:37:24,114 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-12 22:37:24,239 INFO L276 IsEmpty]: Start isEmpty. Operand has 3194 states, 2136 states have (on average 1.299625468164794) internal successors, (2776), 2186 states have internal predecessors, (2776), 894 states have call successors, (894), 162 states have call predecessors, (894), 161 states have return successors, (883), 877 states have call predecessors, (883), 883 states have call successors, (883) [2021-11-12 22:37:24,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 517 [2021-11-12 22:37:24,281 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:37:24,283 INFO L514 BasicCegarLoop]: trace histogram [45, 45, 44, 44, 44, 44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:37:24,283 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 22:37:24,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:37:24,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1954838244, now seen corresponding path program 1 times [2021-11-12 22:37:24,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:37:24,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [640541760] [2021-11-12 22:37:24,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:37:24,315 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:37:24,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:37:24,318 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:37:24,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 22:37:32,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:37:32,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 2865 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:37:32,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:37:34,177 INFO L134 CoverageAnalysis]: Checked inductivity of 8646 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 8514 trivial. 0 not checked. [2021-11-12 22:37:34,177 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:37:35,558 INFO L134 CoverageAnalysis]: Checked inductivity of 8646 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8646 trivial. 0 not checked. [2021-11-12 22:37:35,559 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:37:35,559 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [640541760] [2021-11-12 22:37:35,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [640541760] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:37:35,559 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:37:35,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:37:35,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590117070] [2021-11-12 22:37:35,562 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:37:35,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:37:35,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:37:35,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:37:35,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:37:35,605 INFO L87 Difference]: Start difference. First operand has 3194 states, 2136 states have (on average 1.299625468164794) internal successors, (2776), 2186 states have internal predecessors, (2776), 894 states have call successors, (894), 162 states have call predecessors, (894), 161 states have return successors, (883), 877 states have call predecessors, (883), 883 states have call successors, (883) 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, (51), 3 states have call predecessors, (51), 3 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) [2021-11-12 22:37:38,010 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:37:52,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:37:52,040 INFO L93 Difference]: Finished difference Result 12170 states and 17837 transitions. [2021-11-12 22:37:52,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:37:52,043 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, (51), 3 states have call predecessors, (51), 3 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) Word has length 516 [2021-11-12 22:37:52,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:37:52,181 INFO L225 Difference]: With dead ends: 12170 [2021-11-12 22:37:52,182 INFO L226 Difference]: Without dead ends: 9043 [2021-11-12 22:37:52,243 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1030 GetRequests, 1028 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:37:52,254 INFO L933 BasicCegarLoop]: 6084 mSDtfsCounter, 8554 mSDsluCounter, 10810 mSDsCounter, 0 mSdLazyCounter, 1831 mSolverCounterSat, 32 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14398.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8554 SdHoareTripleChecker+Valid, 16894 SdHoareTripleChecker+Invalid, 1864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 101.85ms SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1831 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15479.21ms IncrementalHoareTripleChecker+Time [2021-11-12 22:37:52,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8554 Valid, 16894 Invalid, 1864 Unknown, 0 Unchecked, 101.85ms Time], IncrementalHoareTripleChecker [32 Valid, 1831 Invalid, 1 Unknown, 0 Unchecked, 15479.21ms Time] [2021-11-12 22:37:52,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9043 states. [2021-11-12 22:37:53,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9043 to 9024. [2021-11-12 22:37:53,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9024 states, 6054 states have (on average 1.2743640568219359) internal successors, (7715), 6192 states have internal predecessors, (7715), 2492 states have call successors, (2492), 476 states have call predecessors, (2492), 475 states have return successors, (2488), 2470 states have call predecessors, (2488), 2488 states have call successors, (2488) [2021-11-12 22:37:53,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9024 states to 9024 states and 12695 transitions. [2021-11-12 22:37:53,270 INFO L78 Accepts]: Start accepts. Automaton has 9024 states and 12695 transitions. Word has length 516 [2021-11-12 22:37:53,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:37:53,277 INFO L470 AbstractCegarLoop]: Abstraction has 9024 states and 12695 transitions. [2021-11-12 22:37:53,277 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, (51), 3 states have call predecessors, (51), 3 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) [2021-11-12 22:37:53,277 INFO L276 IsEmpty]: Start isEmpty. Operand 9024 states and 12695 transitions. [2021-11-12 22:37:53,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2021-11-12 22:37:53,309 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:37:53,311 INFO L514 BasicCegarLoop]: trace histogram [45, 45, 44, 44, 44, 44, 44, 44, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:37:53,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 22:37:53,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:37:53,530 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 22:37:53,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:37:53,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1621872551, now seen corresponding path program 1 times [2021-11-12 22:37:53,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:37:53,537 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1685790837] [2021-11-12 22:37:53,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:37:53,537 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:37:53,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:37:53,541 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:37:53,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 22:38:03,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:38:03,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 2986 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:38:03,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:38:05,243 INFO L134 CoverageAnalysis]: Checked inductivity of 8650 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 8518 trivial. 0 not checked. [2021-11-12 22:38:05,243 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:38:06,885 INFO L134 CoverageAnalysis]: Checked inductivity of 8650 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8650 trivial. 0 not checked. [2021-11-12 22:38:06,885 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:38:06,885 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1685790837] [2021-11-12 22:38:06,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1685790837] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:38:06,886 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:38:06,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-12 22:38:06,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839566655] [2021-11-12 22:38:06,886 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:38:06,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:38:06,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:38:06,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:38:06,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:38:06,891 INFO L87 Difference]: Start difference. First operand 9024 states and 12695 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) [2021-11-12 22:38:09,339 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:38:10,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:38:10,699 INFO L93 Difference]: Finished difference Result 23634 states and 33199 transitions. [2021-11-12 22:38:10,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:38:10,700 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) Word has length 549 [2021-11-12 22:38:10,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:38:10,885 INFO L225 Difference]: With dead ends: 23634 [2021-11-12 22:38:10,885 INFO L226 Difference]: Without dead ends: 14703 [2021-11-12 22:38:10,955 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1096 GetRequests, 1095 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:38:10,956 INFO L933 BasicCegarLoop]: 5228 mSDtfsCounter, 4089 mSDsluCounter, 4361 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2852.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4089 SdHoareTripleChecker+Valid, 9589 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 34.14ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2996.31ms IncrementalHoareTripleChecker+Time [2021-11-12 22:38:10,957 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4089 Valid, 9589 Invalid, 80 Unknown, 0 Unchecked, 34.14ms Time], IncrementalHoareTripleChecker [13 Valid, 66 Invalid, 1 Unknown, 0 Unchecked, 2996.31ms Time] [2021-11-12 22:38:10,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14703 states. [2021-11-12 22:38:11,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14703 to 14682. [2021-11-12 22:38:11,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14682 states, 9883 states have (on average 1.2731963978549024) internal successors, (12583), 10113 states have internal predecessors, (12583), 4003 states have call successors, (4003), 794 states have call predecessors, (4003), 793 states have return successors, (4003), 3966 states have call predecessors, (4003), 3999 states have call successors, (4003) [2021-11-12 22:38:12,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14682 states to 14682 states and 20589 transitions. [2021-11-12 22:38:12,111 INFO L78 Accepts]: Start accepts. Automaton has 14682 states and 20589 transitions. Word has length 549 [2021-11-12 22:38:12,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:38:12,120 INFO L470 AbstractCegarLoop]: Abstraction has 14682 states and 20589 transitions. [2021-11-12 22:38:12,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) [2021-11-12 22:38:12,121 INFO L276 IsEmpty]: Start isEmpty. Operand 14682 states and 20589 transitions. [2021-11-12 22:38:12,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2021-11-12 22:38:12,147 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:38:12,148 INFO L514 BasicCegarLoop]: trace histogram [45, 45, 44, 44, 44, 44, 44, 44, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:38:12,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 22:38:12,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:38:12,371 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 22:38:12,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:38:12,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1502477555, now seen corresponding path program 1 times [2021-11-12 22:38:12,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:38:12,381 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [242745985] [2021-11-12 22:38:12,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:38:12,382 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:38:12,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:38:12,383 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:38:12,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 22:38:23,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:38:23,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 2985 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:38:23,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:38:24,662 INFO L134 CoverageAnalysis]: Checked inductivity of 8650 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 8518 trivial. 0 not checked. [2021-11-12 22:38:24,663 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:38:25,934 INFO L134 CoverageAnalysis]: Checked inductivity of 8650 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8650 trivial. 0 not checked. [2021-11-12 22:38:25,935 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:38:25,935 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [242745985] [2021-11-12 22:38:25,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [242745985] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:38:25,935 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:38:25,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-12 22:38:25,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887939704] [2021-11-12 22:38:25,936 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:38:25,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:38:25,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:38:25,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:38:25,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:38:25,939 INFO L87 Difference]: Start difference. First operand 14682 states and 20589 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) [2021-11-12 22:38:28,381 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:38:30,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:38:30,529 INFO L93 Difference]: Finished difference Result 38677 states and 54049 transitions. [2021-11-12 22:38:30,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:38:30,530 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) Word has length 548 [2021-11-12 22:38:30,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:38:30,766 INFO L225 Difference]: With dead ends: 38677 [2021-11-12 22:38:30,767 INFO L226 Difference]: Without dead ends: 24088 [2021-11-12 22:38:30,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1094 GetRequests, 1093 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:38:30,877 INFO L933 BasicCegarLoop]: 5182 mSDtfsCounter, 3585 mSDsluCounter, 4361 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2875.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3585 SdHoareTripleChecker+Valid, 9543 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 35.34ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3011.55ms IncrementalHoareTripleChecker+Time [2021-11-12 22:38:30,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3585 Valid, 9543 Invalid, 80 Unknown, 0 Unchecked, 35.34ms Time], IncrementalHoareTripleChecker [13 Valid, 66 Invalid, 1 Unknown, 0 Unchecked, 3011.55ms Time] [2021-11-12 22:38:30,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24088 states. [2021-11-12 22:38:32,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24088 to 24064. [2021-11-12 22:38:32,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24064 states, 16172 states have (on average 1.2666336878555529) internal successors, (20484), 16548 states have internal predecessors, (20484), 6513 states have call successors, (6513), 1377 states have call predecessors, (6513), 1376 states have return successors, (6525), 6451 states have call predecessors, (6525), 6509 states have call successors, (6525) [2021-11-12 22:38:32,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24064 states to 24064 states and 33522 transitions. [2021-11-12 22:38:32,853 INFO L78 Accepts]: Start accepts. Automaton has 24064 states and 33522 transitions. Word has length 548 [2021-11-12 22:38:32,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:38:32,856 INFO L470 AbstractCegarLoop]: Abstraction has 24064 states and 33522 transitions. [2021-11-12 22:38:32,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) [2021-11-12 22:38:32,857 INFO L276 IsEmpty]: Start isEmpty. Operand 24064 states and 33522 transitions. [2021-11-12 22:38:32,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2021-11-12 22:38:32,879 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:38:32,880 INFO L514 BasicCegarLoop]: trace histogram [45, 45, 44, 44, 44, 44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:38:32,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 22:38:33,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:38:33,096 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 22:38:33,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:38:33,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1697997184, now seen corresponding path program 1 times [2021-11-12 22:38:33,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:38:33,105 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1632684433] [2021-11-12 22:38:33,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:38:33,106 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:38:33,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:38:33,107 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:38:33,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 22:38:44,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:38:44,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 3038 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:38:44,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:38:46,377 INFO L134 CoverageAnalysis]: Checked inductivity of 8646 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 8514 trivial. 0 not checked. [2021-11-12 22:38:46,378 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:38:48,111 INFO L134 CoverageAnalysis]: Checked inductivity of 8646 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8646 trivial. 0 not checked. [2021-11-12 22:38:48,111 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:38:48,111 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1632684433] [2021-11-12 22:38:48,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1632684433] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:38:48,111 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:38:48,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:38:48,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332503686] [2021-11-12 22:38:48,112 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:38:48,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:38:48,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:38:48,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:38:48,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:38:48,115 INFO L87 Difference]: Start difference. First operand 24064 states and 33522 transitions. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 4 states have call successors, (62), 3 states have call predecessors, (62), 3 states have return successors, (57), 4 states have call predecessors, (57), 4 states have call successors, (57) [2021-11-12 22:38:50,593 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:39:08,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:39:08,988 INFO L93 Difference]: Finished difference Result 87020 states and 121093 transitions. [2021-11-12 22:39:08,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:39:08,989 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 4 states have call successors, (62), 3 states have call predecessors, (62), 3 states have return successors, (57), 4 states have call predecessors, (57), 4 states have call successors, (57) Word has length 548 [2021-11-12 22:39:08,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:39:09,693 INFO L225 Difference]: With dead ends: 87020 [2021-11-12 22:39:09,693 INFO L226 Difference]: Without dead ends: 63049 [2021-11-12 22:39:09,801 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1094 GetRequests, 1092 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:39:09,805 INFO L933 BasicCegarLoop]: 6416 mSDtfsCounter, 10673 mSDsluCounter, 6710 mSDsCounter, 0 mSdLazyCounter, 1852 mSolverCounterSat, 1544 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16845.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10673 SdHoareTripleChecker+Valid, 13126 SdHoareTripleChecker+Invalid, 3397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 63.97ms SdHoareTripleChecker+Time, 1544 IncrementalHoareTripleChecker+Valid, 1852 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18536.99ms IncrementalHoareTripleChecker+Time [2021-11-12 22:39:09,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10673 Valid, 13126 Invalid, 3397 Unknown, 0 Unchecked, 63.97ms Time], IncrementalHoareTripleChecker [1544 Valid, 1852 Invalid, 1 Unknown, 0 Unchecked, 18536.99ms Time] [2021-11-12 22:39:09,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63049 states. [2021-11-12 22:39:13,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63049 to 62965. [2021-11-12 22:39:14,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62965 states, 42426 states have (on average 1.2673360675057748) internal successors, (53768), 43456 states have internal predecessors, (53768), 16844 states have call successors, (16844), 3699 states have call predecessors, (16844), 3692 states have return successors, (16912), 16669 states have call predecessors, (16912), 16840 states have call successors, (16912) [2021-11-12 22:39:14,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62965 states to 62965 states and 87524 transitions. [2021-11-12 22:39:14,854 INFO L78 Accepts]: Start accepts. Automaton has 62965 states and 87524 transitions. Word has length 548 [2021-11-12 22:39:14,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:39:14,856 INFO L470 AbstractCegarLoop]: Abstraction has 62965 states and 87524 transitions. [2021-11-12 22:39:14,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 4 states have call successors, (62), 3 states have call predecessors, (62), 3 states have return successors, (57), 4 states have call predecessors, (57), 4 states have call successors, (57) [2021-11-12 22:39:14,857 INFO L276 IsEmpty]: Start isEmpty. Operand 62965 states and 87524 transitions. [2021-11-12 22:39:14,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 582 [2021-11-12 22:39:14,906 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:39:14,907 INFO L514 BasicCegarLoop]: trace histogram [48, 48, 44, 44, 44, 44, 44, 44, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:39:14,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 22:39:15,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:39:15,128 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [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 (and 1 more)] === [2021-11-12 22:39:15,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:39:15,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1713237208, now seen corresponding path program 1 times [2021-11-12 22:39:15,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:39:15,138 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1662039799] [2021-11-12 22:39:15,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:39:15,138 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:39:15,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:39:15,140 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:39:15,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 22:39:25,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:39:25,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 2978 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 22:39:25,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:39:27,469 INFO L134 CoverageAnalysis]: Checked inductivity of 9098 backedges. 309 proven. 0 refuted. 0 times theorem prover too weak. 8789 trivial. 0 not checked. [2021-11-12 22:39:27,469 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:39:29,558 INFO L134 CoverageAnalysis]: Checked inductivity of 9098 backedges. 17 proven. 6 refuted. 0 times theorem prover too weak. 9075 trivial. 0 not checked. [2021-11-12 22:39:29,559 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:39:29,559 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1662039799] [2021-11-12 22:39:29,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1662039799] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:39:29,560 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:39:29,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 9 [2021-11-12 22:39:29,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568411998] [2021-11-12 22:39:29,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:39:29,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 22:39:29,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:39:29,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 22:39:29,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-12 22:39:29,563 INFO L87 Difference]: Start difference. First operand 62965 states and 87524 transitions. Second operand has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 states have internal predecessors, (118), 2 states have call successors, (56), 2 states have call predecessors, (56), 3 states have return successors, (54), 3 states have call predecessors, (54), 2 states have call successors, (54) [2021-11-12 22:39:38,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:39:38,524 INFO L93 Difference]: Finished difference Result 151287 states and 214803 transitions. [2021-11-12 22:39:38,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-12 22:39:38,524 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 states have internal predecessors, (118), 2 states have call successors, (56), 2 states have call predecessors, (56), 3 states have return successors, (54), 3 states have call predecessors, (54), 2 states have call successors, (54) Word has length 581 [2021-11-12 22:39:38,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:39:39,591 INFO L225 Difference]: With dead ends: 151287 [2021-11-12 22:39:39,592 INFO L226 Difference]: Without dead ends: 89993 [2021-11-12 22:39:39,890 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1166 GetRequests, 1155 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2021-11-12 22:39:39,891 INFO L933 BasicCegarLoop]: 5897 mSDtfsCounter, 3209 mSDsluCounter, 32638 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 1001 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4059.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3459 SdHoareTripleChecker+Valid, 38535 SdHoareTripleChecker+Invalid, 1527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 107.27ms SdHoareTripleChecker+Time, 1001 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4379.44ms IncrementalHoareTripleChecker+Time [2021-11-12 22:39:39,891 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3459 Valid, 38535 Invalid, 1527 Unknown, 0 Unchecked, 107.27ms Time], IncrementalHoareTripleChecker [1001 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 4379.44ms Time] [2021-11-12 22:39:40,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89993 states. [2021-11-12 22:39:45,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89993 to 62995. [2021-11-12 22:39:45,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62995 states, 42456 states have (on average 1.2671000565291124) internal successors, (53796), 43486 states have internal predecessors, (53796), 16844 states have call successors, (16844), 3699 states have call predecessors, (16844), 3692 states have return successors, (16912), 16669 states have call predecessors, (16912), 16840 states have call successors, (16912) [2021-11-12 22:39:45,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62995 states to 62995 states and 87552 transitions. [2021-11-12 22:39:45,833 INFO L78 Accepts]: Start accepts. Automaton has 62995 states and 87552 transitions. Word has length 581 [2021-11-12 22:39:45,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:39:45,835 INFO L470 AbstractCegarLoop]: Abstraction has 62995 states and 87552 transitions. [2021-11-12 22:39:45,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 states have internal predecessors, (118), 2 states have call successors, (56), 2 states have call predecessors, (56), 3 states have return successors, (54), 3 states have call predecessors, (54), 2 states have call successors, (54) [2021-11-12 22:39:45,836 INFO L276 IsEmpty]: Start isEmpty. Operand 62995 states and 87552 transitions. [2021-11-12 22:39:45,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 592 [2021-11-12 22:39:45,865 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:39:45,866 INFO L514 BasicCegarLoop]: trace histogram [48, 48, 44, 44, 44, 44, 44, 44, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:39:45,950 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 22:39:46,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:39:46,083 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [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 (and 1 more)] === [2021-11-12 22:39:46,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:39:46,084 INFO L85 PathProgramCache]: Analyzing trace with hash 236302099, now seen corresponding path program 1 times [2021-11-12 22:39:46,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:39:46,094 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [788084816] [2021-11-12 22:39:46,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:39:46,095 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:39:46,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:39:46,096 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:39:46,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 22:39:56,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:39:56,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 2993 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-12 22:39:56,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:39:58,228 INFO L134 CoverageAnalysis]: Checked inductivity of 9098 backedges. 302 proven. 0 refuted. 0 times theorem prover too weak. 8796 trivial. 0 not checked. [2021-11-12 22:39:58,228 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:40:00,509 INFO L134 CoverageAnalysis]: Checked inductivity of 9098 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 9075 trivial. 0 not checked. [2021-11-12 22:40:00,509 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:40:00,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [788084816] [2021-11-12 22:40:00,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [788084816] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:40:00,510 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:40:00,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 17 [2021-11-12 22:40:00,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041094039] [2021-11-12 22:40:00,510 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:40:00,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-12 22:40:00,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:40:00,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-12 22:40:00,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2021-11-12 22:40:00,513 INFO L87 Difference]: Start difference. First operand 62995 states and 87552 transitions. Second operand has 17 states, 16 states have (on average 8.0625) internal successors, (129), 16 states have internal predecessors, (129), 6 states have call successors, (61), 3 states have call predecessors, (61), 6 states have return successors, (60), 6 states have call predecessors, (60), 5 states have call successors, (60) [2021-11-12 22:40:03,130 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.61s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:40:05,315 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:40:07,329 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:40:35,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:40:35,952 INFO L93 Difference]: Finished difference Result 112868 states and 156658 transitions. [2021-11-12 22:40:35,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-12 22:40:35,953 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 8.0625) internal successors, (129), 16 states have internal predecessors, (129), 6 states have call successors, (61), 3 states have call predecessors, (61), 6 states have return successors, (60), 6 states have call predecessors, (60), 5 states have call successors, (60) Word has length 591 [2021-11-12 22:40:35,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:40:36,783 INFO L225 Difference]: With dead ends: 112868 [2021-11-12 22:40:36,783 INFO L226 Difference]: Without dead ends: 112844 [2021-11-12 22:40:36,838 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1197 GetRequests, 1167 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=165, Invalid=827, Unknown=0, NotChecked=0, Total=992 [2021-11-12 22:40:36,840 INFO L933 BasicCegarLoop]: 7581 mSDtfsCounter, 7847 mSDsluCounter, 75005 mSDsCounter, 0 mSdLazyCounter, 3959 mSolverCounterSat, 1430 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27848.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7859 SdHoareTripleChecker+Valid, 82586 SdHoareTripleChecker+Invalid, 5392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 160.88ms SdHoareTripleChecker+Time, 1430 IncrementalHoareTripleChecker+Valid, 3959 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29616.53ms IncrementalHoareTripleChecker+Time [2021-11-12 22:40:36,840 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7859 Valid, 82586 Invalid, 5392 Unknown, 0 Unchecked, 160.88ms Time], IncrementalHoareTripleChecker [1430 Valid, 3959 Invalid, 3 Unknown, 0 Unchecked, 29616.53ms Time] [2021-11-12 22:40:36,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112844 states. [2021-11-12 22:40:42,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112844 to 112499. [2021-11-12 22:40:42,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112499 states, 75810 states have (on average 1.2652420524996701) internal successors, (95918), 77636 states have internal predecessors, (95918), 30040 states have call successors, (30040), 6655 states have call predecessors, (30040), 6646 states have return successors, (30168), 29729 states have call predecessors, (30168), 30036 states have call successors, (30168) [2021-11-12 22:40:43,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112499 states to 112499 states and 156126 transitions. [2021-11-12 22:40:43,598 INFO L78 Accepts]: Start accepts. Automaton has 112499 states and 156126 transitions. Word has length 591 [2021-11-12 22:40:43,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:40:43,600 INFO L470 AbstractCegarLoop]: Abstraction has 112499 states and 156126 transitions. [2021-11-12 22:40:43,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 8.0625) internal successors, (129), 16 states have internal predecessors, (129), 6 states have call successors, (61), 3 states have call predecessors, (61), 6 states have return successors, (60), 6 states have call predecessors, (60), 5 states have call successors, (60) [2021-11-12 22:40:43,600 INFO L276 IsEmpty]: Start isEmpty. Operand 112499 states and 156126 transitions. [2021-11-12 22:40:43,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 613 [2021-11-12 22:40:43,650 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:40:43,650 INFO L514 BasicCegarLoop]: trace histogram [49, 49, 44, 44, 44, 44, 44, 44, 5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:40:43,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-12 22:40:43,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:40:43,867 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [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 (and 1 more)] === [2021-11-12 22:40:43,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:40:43,868 INFO L85 PathProgramCache]: Analyzing trace with hash -898136248, now seen corresponding path program 1 times [2021-11-12 22:40:43,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:40:43,875 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1849522573] [2021-11-12 22:40:43,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:40:43,875 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:40:43,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:40:43,876 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:40:43,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a268fec-ba2b-4f40-9852-27417bbeb554/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 22:40:52,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:40:53,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 3098 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:40:53,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:40:54,265 INFO L134 CoverageAnalysis]: Checked inductivity of 9250 backedges. 315 proven. 0 refuted. 0 times theorem prover too weak. 8935 trivial. 0 not checked. [2021-11-12 22:40:54,265 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:40:55,555 INFO L134 CoverageAnalysis]: Checked inductivity of 9250 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9244 trivial. 0 not checked. [2021-11-12 22:40:55,555 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:40:55,556 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1849522573] [2021-11-12 22:40:55,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1849522573] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:40:55,556 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:40:55,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:40:55,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388444797] [2021-11-12 22:40:55,557 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:40:55,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:40:55,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:40:55,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:40:55,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:40:55,561 INFO L87 Difference]: Start difference. First operand 112499 states and 156126 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 4 states have call successors, (67), 3 states have call predecessors, (67), 3 states have return successors, (65), 4 states have call predecessors, (65), 4 states have call successors, (65) [2021-11-12 22:40:58,098 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.53s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:41:20,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:41:20,493 INFO L93 Difference]: Finished difference Result 331608 states and 460453 transitions. [2021-11-12 22:41:20,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:41:20,494 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 4 states have call successors, (67), 3 states have call predecessors, (67), 3 states have return successors, (65), 4 states have call predecessors, (65), 4 states have call successors, (65) Word has length 612 [2021-11-12 22:41:20,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:41:22,352 INFO L225 Difference]: With dead ends: 331608 [2021-11-12 22:41:22,352 INFO L226 Difference]: Without dead ends: 220780 [2021-11-12 22:41:22,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1222 GetRequests, 1220 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:41:22,813 INFO L933 BasicCegarLoop]: 7821 mSDtfsCounter, 8510 mSDsluCounter, 7605 mSDsCounter, 0 mSdLazyCounter, 1814 mSolverCounterSat, 21 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13161.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8510 SdHoareTripleChecker+Valid, 15426 SdHoareTripleChecker+Invalid, 1836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 46.88ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1814 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14123.04ms IncrementalHoareTripleChecker+Time [2021-11-12 22:41:22,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8510 Valid, 15426 Invalid, 1836 Unknown, 0 Unchecked, 46.88ms Time], IncrementalHoareTripleChecker [21 Valid, 1814 Invalid, 1 Unknown, 0 Unchecked, 14123.04ms Time] [2021-11-12 22:41:23,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220780 states.