./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 10193951df4eb6f67d99eaaa8758acfa57b6461ca38071389a41cbdc5c585dfb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:25:56,190 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:25:56,193 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:25:56,232 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:25:56,234 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:25:56,235 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:25:56,239 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:25:56,245 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:25:56,249 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:25:56,253 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:25:56,254 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:25:56,257 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:25:56,258 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:25:56,264 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:25:56,267 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:25:56,269 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:25:56,271 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:25:56,272 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:25:56,276 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:25:56,285 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:25:56,289 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:25:56,293 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:25:56,296 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:25:56,298 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:25:56,306 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:25:56,312 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:25:56,313 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:25:56,314 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:25:56,316 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:25:56,318 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:25:56,319 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:25:56,320 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:25:56,322 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:25:56,324 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:25:56,326 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:25:56,327 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:25:56,328 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:25:56,328 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:25:56,328 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:25:56,329 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:25:56,330 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:25:56,331 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 14:25:56,383 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:25:56,384 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:25:56,385 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:25:56,386 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:25:56,386 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:25:56,386 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:25:56,386 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:25:56,387 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:25:56,390 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:25:56,391 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:25:56,392 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:25:56,392 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:25:56,393 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:25:56,393 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:25:56,393 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:25:56,393 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:25:56,394 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:25:56,395 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:25:56,395 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:25:56,395 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:25:56,395 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:25:56,396 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:25:56,396 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:25:56,396 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:25:56,396 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:25:56,397 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:25:56,397 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:25:56,397 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:25:56,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:25:56,398 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:25:56,398 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:25:56,398 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:25:56,399 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:25:56,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:25:56,399 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:25:56,399 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:25:56,400 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:25:56,400 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_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10193951df4eb6f67d99eaaa8758acfa57b6461ca38071389a41cbdc5c585dfb [2021-11-19 14:25:56,718 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:25:56,743 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:25:56,746 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:25:56,748 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:25:56,749 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:25:56,750 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i [2021-11-19 14:25:56,831 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/data/f98a2a84d/db8003b1aa5c4f7ba09d97cfb73c5dd0/FLAGa972a0518 [2021-11-19 14:25:57,725 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:25:57,725 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i [2021-11-19 14:25:57,794 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/data/f98a2a84d/db8003b1aa5c4f7ba09d97cfb73c5dd0/FLAGa972a0518 [2021-11-19 14:25:58,196 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/data/f98a2a84d/db8003b1aa5c4f7ba09d97cfb73c5dd0 [2021-11-19 14:25:58,199 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:25:58,201 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:25:58,203 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:25:58,203 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:25:58,207 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:25:58,208 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:25:58" (1/1) ... [2021-11-19 14:25:58,209 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a36aa81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:25:58, skipping insertion in model container [2021-11-19 14:25:58,210 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:25:58" (1/1) ... [2021-11-19 14:25:58,219 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:25:58,396 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:26:01,443 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341176,341189] [2021-11-19 14:26:01,452 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341345,341358] [2021-11-19 14:26:01,453 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341512,341525] [2021-11-19 14:26:01,453 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341680,341693] [2021-11-19 14:26:01,470 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:26:01,502 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 14:26:01,502 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3b0dc4ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:01, skipping insertion in model container [2021-11-19 14:26:01,502 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:26:01,503 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:26:01,505 INFO L158 Benchmark]: Toolchain (without parser) took 3302.98ms. Allocated memory was 92.3MB in the beginning and 115.3MB in the end (delta: 23.1MB). Free memory was 59.2MB in the beginning and 49.7MB in the end (delta: 9.5MB). Peak memory consumption was 44.2MB. Max. memory is 16.1GB. [2021-11-19 14:26:01,506 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 92.3MB. Free memory was 70.2MB in the beginning and 70.2MB in the end (delta: 53.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:26:01,507 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3300.11ms. Allocated memory was 92.3MB in the beginning and 115.3MB in the end (delta: 23.1MB). Free memory was 59.0MB in the beginning and 49.7MB in the end (delta: 9.3MB). Peak memory consumption was 44.2MB. Max. memory is 16.1GB. [2021-11-19 14:26:01,509 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 92.3MB. Free memory was 70.2MB in the beginning and 70.2MB in the end (delta: 53.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3300.11ms. Allocated memory was 92.3MB in the beginning and 115.3MB in the end (delta: 23.1MB). Free memory was 59.0MB in the beginning and 49.7MB in the end (delta: 9.3MB). Peak memory consumption was 44.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6949]: 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_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 10193951df4eb6f67d99eaaa8758acfa57b6461ca38071389a41cbdc5c585dfb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:26:03,651 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:26:03,654 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:26:03,721 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:26:03,722 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:26:03,725 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:26:03,727 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:26:03,732 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:26:03,735 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:26:03,743 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:26:03,744 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:26:03,746 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:26:03,747 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:26:03,749 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:26:03,751 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:26:03,756 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:26:03,758 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:26:03,759 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:26:03,761 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:26:03,768 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:26:03,770 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:26:03,772 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:26:03,775 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:26:03,777 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:26:03,786 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:26:03,786 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:26:03,787 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:26:03,789 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:26:03,789 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:26:03,790 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:26:03,791 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:26:03,792 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:26:03,794 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:26:03,795 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:26:03,796 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:26:03,797 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:26:03,798 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:26:03,798 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:26:03,798 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:26:03,800 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:26:03,801 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:26:03,806 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 14:26:03,848 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:26:03,848 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:26:03,850 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:26:03,850 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:26:03,850 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:26:03,850 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:26:03,851 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:26:03,851 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:26:03,851 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:26:03,851 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:26:03,854 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:26:03,854 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:26:03,854 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:26:03,854 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:26:03,855 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:26:03,855 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:26:03,855 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:26:03,855 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:26:03,855 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:26:03,856 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:26:03,856 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:26:03,856 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:26:03,856 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:26:03,857 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:26:03,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:26:03,857 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:26:03,857 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:26:03,858 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:26:03,858 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:26:03,858 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:26:03,858 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:26:03,858 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:26:03,859 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:26:03,859 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_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10193951df4eb6f67d99eaaa8758acfa57b6461ca38071389a41cbdc5c585dfb [2021-11-19 14:26:04,259 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:26:04,288 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:26:04,290 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:26:04,291 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:26:04,295 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:26:04,296 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i [2021-11-19 14:26:04,375 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/data/4f66d31ee/574fd90b848a4b7290a36b305ef403cb/FLAG8420e4fb6 [2021-11-19 14:26:05,454 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:26:05,455 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i [2021-11-19 14:26:05,542 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/data/4f66d31ee/574fd90b848a4b7290a36b305ef403cb/FLAG8420e4fb6 [2021-11-19 14:26:05,733 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/data/4f66d31ee/574fd90b848a4b7290a36b305ef403cb [2021-11-19 14:26:05,735 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:26:05,736 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:26:05,737 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:26:05,738 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:26:05,742 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:26:05,742 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:26:05" (1/1) ... [2021-11-19 14:26:05,744 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cc26a01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:05, skipping insertion in model container [2021-11-19 14:26:05,744 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:26:05" (1/1) ... [2021-11-19 14:26:05,751 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:26:05,918 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:26:09,061 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341176,341189] [2021-11-19 14:26:09,064 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341345,341358] [2021-11-19 14:26:09,064 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341512,341525] [2021-11-19 14:26:09,065 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341680,341693] [2021-11-19 14:26:09,093 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:26:09,154 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:26:09,261 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:26:09,623 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341176,341189] [2021-11-19 14:26:09,624 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341345,341358] [2021-11-19 14:26:09,624 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341512,341525] [2021-11-19 14:26:09,625 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341680,341693] [2021-11-19 14:26:09,630 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:26:09,647 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:26:09,985 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341176,341189] [2021-11-19 14:26:09,985 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341345,341358] [2021-11-19 14:26:09,986 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341512,341525] [2021-11-19 14:26:09,986 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341680,341693] [2021-11-19 14:26:09,996 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:26:10,198 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:26:10,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:10 WrapperNode [2021-11-19 14:26:10,199 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:26:10,202 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:26:10,202 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:26:10,202 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:26:10,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:10" (1/1) ... [2021-11-19 14:26:10,345 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:10" (1/1) ... [2021-11-19 14:26:10,545 INFO L137 Inliner]: procedures = 441, calls = 1735, calls flagged for inlining = 206, calls inlined = 187, statements flattened = 4496 [2021-11-19 14:26:10,546 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:26:10,547 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:26:10,547 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:26:10,548 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:26:10,556 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:10" (1/1) ... [2021-11-19 14:26:10,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:10" (1/1) ... [2021-11-19 14:26:10,590 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:10" (1/1) ... [2021-11-19 14:26:10,591 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:10" (1/1) ... [2021-11-19 14:26:10,701 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:10" (1/1) ... [2021-11-19 14:26:10,719 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:10" (1/1) ... [2021-11-19 14:26:10,740 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:10" (1/1) ... [2021-11-19 14:26:10,784 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:26:10,786 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:26:10,786 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:26:10,786 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:26:10,787 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:10" (1/1) ... [2021-11-19 14:26:10,794 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:26:10,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:26:10,823 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:26:10,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:26:10,869 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2021-11-19 14:26:10,869 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2021-11-19 14:26:10,869 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-19 14:26:10,870 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-19 14:26:10,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 14:26:10,870 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 14:26:10,870 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_82 [2021-11-19 14:26:10,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_82 [2021-11-19 14:26:10,870 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-19 14:26:10,871 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-19 14:26:10,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 14:26:10,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 14:26:10,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rr_driver_exit_13_2 [2021-11-19 14:26:10,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rr_driver_exit_13_2 [2021-11-19 14:26:10,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_rr_private [2021-11-19 14:26:10,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_rr_private [2021-11-19 14:26:10,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 14:26:10,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 14:26:10,927 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-19 14:26:10,927 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-19 14:26:10,927 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-19 14:26:10,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-19 14:26:10,927 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-19 14:26:10,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 14:26:10,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 14:26:10,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 14:26:10,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 14:26:10,928 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-19 14:26:10,928 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-19 14:26:10,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:26:10,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:26:10,928 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-11-19 14:26:10,928 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-11-19 14:26:10,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 14:26:10,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 14:26:10,929 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-19 14:26:10,929 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-19 14:26:10,929 INFO L130 BoogieDeclarations]: Found specification of procedure set_rraddr [2021-11-19 14:26:10,929 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rraddr [2021-11-19 14:26:10,929 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-19 14:26:10,929 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-19 14:26:10,929 INFO L130 BoogieDeclarations]: Found specification of procedure rr_read_eeprom_word [2021-11-19 14:26:10,930 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_read_eeprom_word [2021-11-19 14:26:10,930 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-19 14:26:10,930 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-19 14:26:10,930 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-19 14:26:10,930 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-19 14:26:10,930 INFO L130 BoogieDeclarations]: Found specification of procedure rr_read_eeprom [2021-11-19 14:26:10,930 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_read_eeprom [2021-11-19 14:26:10,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 14:26:10,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 14:26:10,931 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-19 14:26:10,931 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-19 14:26:10,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-19 14:26:10,931 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-19 14:26:10,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-19 14:26:10,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-19 14:26:10,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-19 14:26:10,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-19 14:26:10,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-19 14:26:10,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-19 14:26:10,932 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-19 14:26:10,932 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-19 14:26:10,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-19 14:26:10,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-19 14:26:10,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:26:10,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-19 14:26:10,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-19 14:26:10,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:26:10,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 14:26:10,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 14:26:10,933 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-19 14:26:10,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-19 14:26:10,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 14:26:10,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 14:26:10,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 14:26:10,934 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 14:26:10,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 14:26:10,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 14:26:10,934 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-11-19 14:26:10,934 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-11-19 14:26:10,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_rr_private [2021-11-19 14:26:10,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_rr_private [2021-11-19 14:26:10,934 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-19 14:26:10,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-19 14:26:10,935 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-19 14:26:10,935 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-19 14:26:10,935 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-19 14:26:10,935 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-19 14:26:10,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-19 14:26:10,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-19 14:26:10,935 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-19 14:26:10,935 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-19 14:26:10,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 14:26:10,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:26:10,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:26:10,936 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-11-19 14:26:10,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-11-19 14:26:10,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 14:26:10,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 14:26:10,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 14:26:10,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 14:26:10,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 14:26:10,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 14:26:10,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 14:26:10,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 14:26:10,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 14:26:10,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 14:26:10,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-19 14:26:10,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-19 14:26:10,937 INFO L130 BoogieDeclarations]: Found specification of procedure rr_remove_one [2021-11-19 14:26:10,938 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_remove_one [2021-11-19 14:26:10,938 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-19 14:26:10,938 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-19 14:26:10,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 14:26:10,938 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 14:26:10,938 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-19 14:26:10,938 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-19 14:26:10,938 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-19 14:26:10,938 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-19 14:26:10,939 INFO L130 BoogieDeclarations]: Found specification of procedure rr_init1 [2021-11-19 14:26:10,939 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_init1 [2021-11-19 14:26:10,939 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-19 14:26:10,939 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-19 14:26:10,939 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-19 14:26:10,939 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-19 14:26:10,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:26:10,939 INFO L130 BoogieDeclarations]: Found specification of procedure rr_open [2021-11-19 14:26:10,939 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_open [2021-11-19 14:26:10,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 14:26:10,940 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-19 14:26:10,940 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-19 14:26:10,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 14:26:10,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 14:26:10,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 14:26:10,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 14:26:10,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 14:26:10,940 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-19 14:26:10,941 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-19 14:26:10,941 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2021-11-19 14:26:10,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2021-11-19 14:26:10,941 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-19 14:26:10,941 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-19 14:26:10,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 14:26:10,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 14:26:10,941 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-19 14:26:10,942 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-19 14:26:10,942 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-19 14:26:10,942 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-19 14:26:10,942 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 14:26:10,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 14:26:10,942 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-19 14:26:10,942 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-19 14:26:10,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 14:26:10,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 14:26:10,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 14:26:10,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 14:26:10,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 14:26:10,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 14:26:10,943 INFO L130 BoogieDeclarations]: Found specification of procedure rr_raz_tx [2021-11-19 14:26:10,943 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_raz_tx [2021-11-19 14:26:10,943 INFO L130 BoogieDeclarations]: Found specification of procedure rr_close [2021-11-19 14:26:10,943 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_close [2021-11-19 14:26:10,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 14:26:10,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 14:26:10,944 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-19 14:26:10,944 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-19 14:26:10,944 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-19 14:26:10,944 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-19 14:26:10,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-19 14:26:10,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-19 14:26:10,944 INFO L130 BoogieDeclarations]: Found specification of procedure rr_raz_rx [2021-11-19 14:26:10,945 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_raz_rx [2021-11-19 14:26:11,775 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:26:11,781 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:26:12,023 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 14:26:34,949 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-19 14:26:35,066 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:26:35,091 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:26:35,092 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 14:26:35,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:26:35 BoogieIcfgContainer [2021-11-19 14:26:35,097 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:26:35,099 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:26:35,099 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:26:35,101 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:26:35,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:26:05" (1/3) ... [2021-11-19 14:26:35,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a92de9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:26:35, skipping insertion in model container [2021-11-19 14:26:35,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:10" (2/3) ... [2021-11-19 14:26:35,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a92de9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:26:35, skipping insertion in model container [2021-11-19 14:26:35,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:26:35" (3/3) ... [2021-11-19 14:26:35,104 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i [2021-11-19 14:26:35,110 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:26:35,110 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-19 14:26:35,193 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:26:35,205 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 14:26:35,205 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-19 14:26:35,271 INFO L276 IsEmpty]: Start isEmpty. Operand has 1573 states, 1031 states have (on average 1.2580019398642095) internal successors, (1297), 1056 states have internal predecessors, (1297), 469 states have call successors, (469), 71 states have call predecessors, (469), 70 states have return successors, (463), 452 states have call predecessors, (463), 463 states have call successors, (463) [2021-11-19 14:26:35,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-19 14:26:35,295 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:26:35,296 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:26:35,296 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:26:35,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:26:35,302 INFO L85 PathProgramCache]: Analyzing trace with hash -953988820, now seen corresponding path program 1 times [2021-11-19 14:26:35,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:26:35,319 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1511131370] [2021-11-19 14:26:35,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:26:35,321 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:26:35,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:26:35,326 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:26:35,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:26:36,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:26:36,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 847 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:26:36,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:26:36,644 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2021-11-19 14:26:36,644 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:26:36,954 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-19 14:26:36,955 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:26:36,955 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1511131370] [2021-11-19 14:26:36,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1511131370] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:26:36,956 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:26:36,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:26:36,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746519251] [2021-11-19 14:26:36,958 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:26:36,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:26:36,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:26:36,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:26:36,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:26:37,000 INFO L87 Difference]: Start difference. First operand has 1573 states, 1031 states have (on average 1.2580019398642095) internal successors, (1297), 1056 states have internal predecessors, (1297), 469 states have call successors, (469), 71 states have call predecessors, (469), 70 states have return successors, (463), 452 states have call predecessors, (463), 463 states have call successors, (463) Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2021-11-19 14:26:39,096 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:26:45,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:26:45,209 INFO L93 Difference]: Finished difference Result 6071 states and 8810 transitions. [2021-11-19 14:26:45,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:26:45,212 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 105 [2021-11-19 14:26:45,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:26:45,288 INFO L225 Difference]: With dead ends: 6071 [2021-11-19 14:26:45,288 INFO L226 Difference]: Without dead ends: 4500 [2021-11-19 14:26:45,312 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:26:45,319 INFO L933 BasicCegarLoop]: 3100 mSDtfsCounter, 5437 mSDsluCounter, 3334 mSDsCounter, 0 mSdLazyCounter, 956 mSolverCounterSat, 873 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5437 SdHoareTripleChecker+Valid, 6434 SdHoareTripleChecker+Invalid, 1830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 873 IncrementalHoareTripleChecker+Valid, 956 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2021-11-19 14:26:45,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5437 Valid, 6434 Invalid, 1830 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [873 Valid, 956 Invalid, 1 Unknown, 0 Unchecked, 7.6s Time] [2021-11-19 14:26:45,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4500 states. [2021-11-19 14:26:45,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4500 to 4471. [2021-11-19 14:26:45,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4471 states, 2960 states have (on average 1.2466216216216217) internal successors, (3690), 3031 states have internal predecessors, (3690), 1305 states have call successors, (1305), 204 states have call predecessors, (1305), 203 states have return successors, (1301), 1268 states have call predecessors, (1301), 1301 states have call successors, (1301) [2021-11-19 14:26:45,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4471 states to 4471 states and 6296 transitions. [2021-11-19 14:26:45,942 INFO L78 Accepts]: Start accepts. Automaton has 4471 states and 6296 transitions. Word has length 105 [2021-11-19 14:26:45,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:26:45,944 INFO L470 AbstractCegarLoop]: Abstraction has 4471 states and 6296 transitions. [2021-11-19 14:26:45,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2021-11-19 14:26:45,945 INFO L276 IsEmpty]: Start isEmpty. Operand 4471 states and 6296 transitions. [2021-11-19 14:26:45,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-19 14:26:45,951 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:26:45,952 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:26:45,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:26:46,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:26:46,166 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:26:46,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:26:46,167 INFO L85 PathProgramCache]: Analyzing trace with hash -428023411, now seen corresponding path program 1 times [2021-11-19 14:26:46,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:26:46,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1672489770] [2021-11-19 14:26:46,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:26:46,169 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:26:46,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:26:46,171 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:26:46,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:26:47,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:26:47,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 893 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:26:47,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:26:47,459 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2021-11-19 14:26:47,459 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:26:47,779 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-19 14:26:47,779 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:26:47,779 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1672489770] [2021-11-19 14:26:47,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1672489770] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:26:47,779 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:26:47,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:26:47,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005316647] [2021-11-19 14:26:47,780 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:26:47,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:26:47,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:26:47,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:26:47,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:26:47,783 INFO L87 Difference]: Start difference. First operand 4471 states and 6296 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2021-11-19 14:26:49,880 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:26:53,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:26:53,697 INFO L93 Difference]: Finished difference Result 16219 states and 22847 transitions. [2021-11-19 14:26:53,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:26:53,699 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 113 [2021-11-19 14:26:53,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:26:53,808 INFO L225 Difference]: With dead ends: 16219 [2021-11-19 14:26:53,808 INFO L226 Difference]: Without dead ends: 11767 [2021-11-19 14:26:53,834 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:26:53,835 INFO L933 BasicCegarLoop]: 2994 mSDtfsCounter, 3626 mSDsluCounter, 4731 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3626 SdHoareTripleChecker+Valid, 7725 SdHoareTripleChecker+Invalid, 834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:26:53,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3626 Valid, 7725 Invalid, 834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 817 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2021-11-19 14:26:53,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11767 states. [2021-11-19 14:26:54,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11767 to 11699. [2021-11-19 14:26:54,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11699 states, 7638 states have (on average 1.242471851269966) internal successors, (9490), 7787 states have internal predecessors, (9490), 3475 states have call successors, (3475), 602 states have call predecessors, (3475), 583 states have return successors, (3507), 3384 states have call predecessors, (3507), 3471 states have call successors, (3507) [2021-11-19 14:26:54,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11699 states to 11699 states and 16472 transitions. [2021-11-19 14:26:54,837 INFO L78 Accepts]: Start accepts. Automaton has 11699 states and 16472 transitions. Word has length 113 [2021-11-19 14:26:54,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:26:54,839 INFO L470 AbstractCegarLoop]: Abstraction has 11699 states and 16472 transitions. [2021-11-19 14:26:54,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2021-11-19 14:26:54,841 INFO L276 IsEmpty]: Start isEmpty. Operand 11699 states and 16472 transitions. [2021-11-19 14:26:54,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-19 14:26:54,850 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:26:54,850 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:26:54,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:26:55,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:26:55,064 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:26:55,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:26:55,064 INFO L85 PathProgramCache]: Analyzing trace with hash -342971918, now seen corresponding path program 1 times [2021-11-19 14:26:55,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:26:55,066 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [697602928] [2021-11-19 14:26:55,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:26:55,066 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:26:55,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:26:55,067 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:26:55,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:26:55,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:26:56,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 965 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:26:56,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:26:56,305 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2021-11-19 14:26:56,305 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:26:56,608 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-19 14:26:56,608 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:26:56,608 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [697602928] [2021-11-19 14:26:56,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [697602928] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:26:56,608 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:26:56,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:26:56,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675829381] [2021-11-19 14:26:56,609 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:26:56,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:26:56,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:26:56,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:26:56,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:26:56,610 INFO L87 Difference]: Start difference. First operand 11699 states and 16472 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2021-11-19 14:26:58,709 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:27:04,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:27:04,842 INFO L93 Difference]: Finished difference Result 31647 states and 44594 transitions. [2021-11-19 14:27:04,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:27:04,844 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 116 [2021-11-19 14:27:04,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:27:05,029 INFO L225 Difference]: With dead ends: 31647 [2021-11-19 14:27:05,032 INFO L226 Difference]: Without dead ends: 19967 [2021-11-19 14:27:05,102 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:27:05,105 INFO L933 BasicCegarLoop]: 3019 mSDtfsCounter, 4394 mSDsluCounter, 2960 mSDsCounter, 0 mSdLazyCounter, 1001 mSolverCounterSat, 645 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4394 SdHoareTripleChecker+Valid, 5979 SdHoareTripleChecker+Invalid, 1647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 645 IncrementalHoareTripleChecker+Valid, 1001 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:27:05,106 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4394 Valid, 5979 Invalid, 1647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [645 Valid, 1001 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2021-11-19 14:27:05,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19967 states. [2021-11-19 14:27:06,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19967 to 19903. [2021-11-19 14:27:06,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19903 states, 12860 states have (on average 1.2404354587869362) internal successors, (15952), 13109 states have internal predecessors, (15952), 5984 states have call successors, (5984), 1079 states have call predecessors, (5984), 1056 states have return successors, (6008), 5838 states have call predecessors, (6008), 5980 states have call successors, (6008) [2021-11-19 14:27:06,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19903 states to 19903 states and 27944 transitions. [2021-11-19 14:27:06,644 INFO L78 Accepts]: Start accepts. Automaton has 19903 states and 27944 transitions. Word has length 116 [2021-11-19 14:27:06,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:27:06,645 INFO L470 AbstractCegarLoop]: Abstraction has 19903 states and 27944 transitions. [2021-11-19 14:27:06,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2021-11-19 14:27:06,646 INFO L276 IsEmpty]: Start isEmpty. Operand 19903 states and 27944 transitions. [2021-11-19 14:27:06,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-19 14:27:06,650 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:27:06,650 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:27:06,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:27:06,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:27:06,866 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:27:06,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:27:06,867 INFO L85 PathProgramCache]: Analyzing trace with hash -331999955, now seen corresponding path program 1 times [2021-11-19 14:27:06,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:27:06,868 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1719354715] [2021-11-19 14:27:06,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:27:06,869 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:27:06,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:27:06,870 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:27:06,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:27:07,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:27:07,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 944 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:27:07,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:27:08,054 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2021-11-19 14:27:08,054 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:27:08,434 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-11-19 14:27:08,435 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:27:08,435 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1719354715] [2021-11-19 14:27:08,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1719354715] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:27:08,435 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:27:08,436 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:27:08,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428679027] [2021-11-19 14:27:08,436 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:27:08,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:27:08,437 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:27:08,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:27:08,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:27:08,438 INFO L87 Difference]: Start difference. First operand 19903 states and 27944 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-19 14:27:10,541 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:27:12,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:27:12,027 INFO L93 Difference]: Finished difference Result 54410 states and 76317 transitions. [2021-11-19 14:27:12,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:27:12,028 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 133 [2021-11-19 14:27:12,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:27:12,494 INFO L225 Difference]: With dead ends: 54410 [2021-11-19 14:27:12,494 INFO L226 Difference]: Without dead ends: 34526 [2021-11-19 14:27:12,628 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:27:12,648 INFO L933 BasicCegarLoop]: 2588 mSDtfsCounter, 1836 mSDsluCounter, 2130 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1836 SdHoareTripleChecker+Valid, 4718 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:27:12,649 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1836 Valid, 4718 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 32 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-11-19 14:27:12,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34526 states. [2021-11-19 14:27:15,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34526 to 34490. [2021-11-19 14:27:15,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34490 states, 22141 states have (on average 1.2331421345016034) internal successors, (27303), 22598 states have internal predecessors, (27303), 10451 states have call successors, (10451), 1944 states have call predecessors, (10451), 1895 states have return successors, (10503), 10146 states have call predecessors, (10503), 10447 states have call successors, (10503) [2021-11-19 14:27:15,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34490 states to 34490 states and 48257 transitions. [2021-11-19 14:27:15,618 INFO L78 Accepts]: Start accepts. Automaton has 34490 states and 48257 transitions. Word has length 133 [2021-11-19 14:27:15,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:27:15,619 INFO L470 AbstractCegarLoop]: Abstraction has 34490 states and 48257 transitions. [2021-11-19 14:27:15,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-19 14:27:15,620 INFO L276 IsEmpty]: Start isEmpty. Operand 34490 states and 48257 transitions. [2021-11-19 14:27:15,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-11-19 14:27:15,623 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:27:15,624 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 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] [2021-11-19 14:27:15,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:27:15,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:27:15,838 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:27:15,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:27:15,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1068291775, now seen corresponding path program 1 times [2021-11-19 14:27:15,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:27:15,840 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [115823437] [2021-11-19 14:27:15,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:27:15,840 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:27:15,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:27:15,841 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:27:15,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:27:16,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:27:16,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 1009 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:27:16,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:27:17,043 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2021-11-19 14:27:17,043 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:27:17,430 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2021-11-19 14:27:17,430 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:27:17,431 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [115823437] [2021-11-19 14:27:17,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [115823437] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:27:17,431 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:27:17,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:27:17,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615780320] [2021-11-19 14:27:17,432 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:27:17,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:27:17,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:27:17,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:27:17,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:27:17,434 INFO L87 Difference]: Start difference. First operand 34490 states and 48257 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 4 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2021-11-19 14:27:19,499 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:27:25,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:27:25,601 INFO L93 Difference]: Finished difference Result 125265 states and 174733 transitions. [2021-11-19 14:27:25,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:27:25,602 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 4 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 144 [2021-11-19 14:27:25,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:27:26,291 INFO L225 Difference]: With dead ends: 125265 [2021-11-19 14:27:26,292 INFO L226 Difference]: Without dead ends: 90794 [2021-11-19 14:27:26,457 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:27:26,458 INFO L933 BasicCegarLoop]: 3752 mSDtfsCounter, 4129 mSDsluCounter, 4735 mSDsCounter, 0 mSdLazyCounter, 847 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4129 SdHoareTripleChecker+Valid, 8487 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 847 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:27:26,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4129 Valid, 8487 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 847 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2021-11-19 14:27:26,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90794 states. [2021-11-19 14:27:31,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90794 to 90610. [2021-11-19 14:27:31,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90610 states, 59324 states have (on average 1.2387903715191153) internal successors, (73490), 60713 states have internal predecessors, (73490), 26257 states have call successors, (26257), 5195 states have call predecessors, (26257), 5026 states have return successors, (26437), 25224 states have call predecessors, (26437), 26253 states have call successors, (26437) [2021-11-19 14:27:32,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90610 states to 90610 states and 126184 transitions. [2021-11-19 14:27:32,221 INFO L78 Accepts]: Start accepts. Automaton has 90610 states and 126184 transitions. Word has length 144 [2021-11-19 14:27:32,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:27:32,222 INFO L470 AbstractCegarLoop]: Abstraction has 90610 states and 126184 transitions. [2021-11-19 14:27:32,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 4 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2021-11-19 14:27:32,222 INFO L276 IsEmpty]: Start isEmpty. Operand 90610 states and 126184 transitions. [2021-11-19 14:27:32,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-11-19 14:27:32,227 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:27:32,228 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 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] [2021-11-19 14:27:32,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:27:32,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:27:32,455 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:27:32,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:27:32,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1011895487, now seen corresponding path program 1 times [2021-11-19 14:27:32,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:27:32,457 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [337310998] [2021-11-19 14:27:32,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:27:32,457 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:27:32,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:27:32,460 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:27:32,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 14:27:33,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:27:33,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 972 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:27:33,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:27:34,156 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2021-11-19 14:27:34,157 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:27:34,794 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2021-11-19 14:27:34,794 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:27:34,794 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [337310998] [2021-11-19 14:27:34,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [337310998] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:27:34,794 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:27:34,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-19 14:27:34,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39726197] [2021-11-19 14:27:34,795 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:27:34,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:27:34,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:27:34,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:27:34,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:27:34,797 INFO L87 Difference]: Start difference. First operand 90610 states and 126184 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (35), 4 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-19 14:27:39,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:27:39,018 INFO L93 Difference]: Finished difference Result 90616 states and 126189 transitions. [2021-11-19 14:27:39,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:27:39,019 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (35), 4 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 161 [2021-11-19 14:27:39,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:27:39,421 INFO L225 Difference]: With dead ends: 90616 [2021-11-19 14:27:39,421 INFO L226 Difference]: Without dead ends: 90614 [2021-11-19 14:27:39,448 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 315 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:27:39,449 INFO L933 BasicCegarLoop]: 2190 mSDtfsCounter, 2108 mSDsluCounter, 6541 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2122 SdHoareTripleChecker+Valid, 8731 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:27:39,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2122 Valid, 8731 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:27:39,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90614 states. [2021-11-19 14:27:44,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90614 to 90614. [2021-11-19 14:27:44,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90614 states, 59327 states have (on average 1.2387782965597451) internal successors, (73493), 60716 states have internal predecessors, (73493), 26257 states have call successors, (26257), 5196 states have call predecessors, (26257), 5027 states have return successors, (26437), 25224 states have call predecessors, (26437), 26253 states have call successors, (26437) [2021-11-19 14:27:45,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90614 states to 90614 states and 126187 transitions. [2021-11-19 14:27:45,409 INFO L78 Accepts]: Start accepts. Automaton has 90614 states and 126187 transitions. Word has length 161 [2021-11-19 14:27:45,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:27:45,409 INFO L470 AbstractCegarLoop]: Abstraction has 90614 states and 126187 transitions. [2021-11-19 14:27:45,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (35), 4 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-19 14:27:45,410 INFO L276 IsEmpty]: Start isEmpty. Operand 90614 states and 126187 transitions. [2021-11-19 14:27:45,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-19 14:27:45,414 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:27:45,414 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:27:45,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 14:27:45,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:27:45,630 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:27:45,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:27:45,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1814810637, now seen corresponding path program 1 times [2021-11-19 14:27:45,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:27:45,632 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [630230412] [2021-11-19 14:27:45,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:27:45,632 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:27:45,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:27:45,633 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:27:45,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc408af6-c43e-43de-a59b-1efbf61223d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 14:27:46,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:27:46,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 1046 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:27:46,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:27:46,862 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2021-11-19 14:27:46,862 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:27:47,325 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2021-11-19 14:27:47,325 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:27:47,325 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [630230412] [2021-11-19 14:27:47,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [630230412] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:27:47,325 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:27:47,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:27:47,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517113992] [2021-11-19 14:27:47,326 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:27:47,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:27:47,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:27:47,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:27:47,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:27:47,329 INFO L87 Difference]: Start difference. First operand 90614 states and 126187 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 4 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2021-11-19 14:27:49,398 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:28:03,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:28:03,512 INFO L93 Difference]: Finished difference Result 359364 states and 500743 transitions. [2021-11-19 14:28:03,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:28:03,513 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 4 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) Word has length 167 [2021-11-19 14:28:03,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:28:04,855 INFO L225 Difference]: With dead ends: 359364 [2021-11-19 14:28:04,855 INFO L226 Difference]: Without dead ends: 268769 [2021-11-19 14:28:05,161 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:28:05,162 INFO L933 BasicCegarLoop]: 3441 mSDtfsCounter, 4284 mSDsluCounter, 4894 mSDsCounter, 0 mSdLazyCounter, 924 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4284 SdHoareTripleChecker+Valid, 8335 SdHoareTripleChecker+Invalid, 935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 924 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:28:05,162 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4284 Valid, 8335 Invalid, 935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 924 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2021-11-19 14:28:05,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268769 states.