./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.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_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/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_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/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_9105316d-c42e-4b7d-95ed-8ebd4a186963/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 8dda3f7c080a6e7302d861accabde0bee64e4cb5e7a0fb77650fdd775ecd7779 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:34:35,323 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:34:35,325 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:34:35,385 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:34:35,386 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:34:35,391 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:34:35,394 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:34:35,399 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:34:35,401 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:34:35,409 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:34:35,410 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:34:35,411 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:34:35,412 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:34:35,413 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:34:35,415 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:34:35,416 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:34:35,417 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:34:35,418 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:34:35,420 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:34:35,430 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:34:35,432 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:34:35,435 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:34:35,442 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:34:35,443 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:34:35,452 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:34:35,453 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:34:35,453 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:34:35,455 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:34:35,456 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:34:35,457 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:34:35,458 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:34:35,459 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:34:35,460 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:34:35,460 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:34:35,461 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:34:35,462 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:34:35,462 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:34:35,463 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:34:35,463 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:34:35,464 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:34:35,465 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:34:35,465 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 13:34:35,493 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:34:35,493 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:34:35,494 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:34:35,494 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:34:35,494 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:34:35,494 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:34:35,494 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:34:35,495 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 13:34:35,495 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:34:35,495 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:34:35,495 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 13:34:35,495 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 13:34:35,495 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:34:35,496 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 13:34:35,496 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 13:34:35,496 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 13:34:35,497 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:34:35,497 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 13:34:35,497 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:34:35,497 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:34:35,498 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:34:35,498 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:34:35,498 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:34:35,498 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:34:35,498 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:34:35,499 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:34:35,499 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:34:35,499 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:34:35,499 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:34:35,499 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:34:35,500 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:34:35,500 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:34:35,500 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 13:34:35,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 13:34:35,500 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:34:35,500 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:34:35,501 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:34:35,501 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_9105316d-c42e-4b7d-95ed-8ebd4a186963/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8dda3f7c080a6e7302d861accabde0bee64e4cb5e7a0fb77650fdd775ecd7779 [2021-11-19 13:34:35,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:34:35,774 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:34:35,776 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:34:35,778 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:34:35,779 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:34:35,780 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i [2021-11-19 13:34:35,843 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/data/73e66373c/83fc0d448b9f40bab4aab02e322d6477/FLAG12c6806bb [2021-11-19 13:34:36,783 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:34:36,785 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i [2021-11-19 13:34:36,836 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/data/73e66373c/83fc0d448b9f40bab4aab02e322d6477/FLAG12c6806bb [2021-11-19 13:34:37,157 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/data/73e66373c/83fc0d448b9f40bab4aab02e322d6477 [2021-11-19 13:34:37,160 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:34:37,161 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:34:37,162 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:34:37,162 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:34:37,168 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:34:37,170 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:34:37" (1/1) ... [2021-11-19 13:34:37,172 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a5a902d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:34:37, skipping insertion in model container [2021-11-19 13:34:37,172 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:34:37" (1/1) ... [2021-11-19 13:34:37,180 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:34:37,344 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:34:39,188 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:34:39,327 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:34:39,333 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:34:40,545 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_9105316d-c42e-4b7d-95ed-8ebd4a186963/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[334651,334664] [2021-11-19 13:34:40,549 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_9105316d-c42e-4b7d-95ed-8ebd4a186963/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[334820,334833] [2021-11-19 13:34:40,549 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_9105316d-c42e-4b7d-95ed-8ebd4a186963/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[334987,335000] [2021-11-19 13:34:40,550 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_9105316d-c42e-4b7d-95ed-8ebd4a186963/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[335155,335168] [2021-11-19 13:34:40,579 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:34:40,612 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 13:34:40,613 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6a6bf146 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:34:40, skipping insertion in model container [2021-11-19 13:34:40,613 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:34:40,613 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 13:34:40,615 INFO L158 Benchmark]: Toolchain (without parser) took 3453.22ms. Allocated memory was 98.6MB in the beginning and 123.7MB in the end (delta: 25.2MB). Free memory was 63.3MB in the beginning and 57.5MB in the end (delta: 5.7MB). Peak memory consumption was 47.5MB. Max. memory is 16.1GB. [2021-11-19 13:34:40,616 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 98.6MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 13:34:40,617 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3451.44ms. Allocated memory was 98.6MB in the beginning and 123.7MB in the end (delta: 25.2MB). Free memory was 63.0MB in the beginning and 57.5MB in the end (delta: 5.5MB). Peak memory consumption was 47.5MB. Max. memory is 16.1GB. [2021-11-19 13:34:40,619 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 98.6MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3451.44ms. Allocated memory was 98.6MB in the beginning and 123.7MB in the end (delta: 25.2MB). Free memory was 63.0MB in the beginning and 57.5MB in the end (delta: 5.5MB). Peak memory consumption was 47.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6417]: 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_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/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_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/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_9105316d-c42e-4b7d-95ed-8ebd4a186963/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 8dda3f7c080a6e7302d861accabde0bee64e4cb5e7a0fb77650fdd775ecd7779 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:34:42,847 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:34:42,851 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:34:42,897 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:34:42,898 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:34:42,901 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:34:42,903 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:34:42,908 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:34:42,911 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:34:42,919 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:34:42,920 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:34:42,922 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:34:42,923 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:34:42,925 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:34:42,928 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:34:42,933 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:34:42,934 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:34:42,936 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:34:42,937 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:34:42,945 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:34:42,947 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:34:42,948 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:34:42,952 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:34:42,953 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:34:42,963 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:34:42,963 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:34:42,963 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:34:42,966 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:34:42,966 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:34:42,967 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:34:42,969 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:34:42,970 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:34:42,972 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:34:42,973 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:34:42,974 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:34:42,975 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:34:42,976 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:34:42,976 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:34:42,976 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:34:42,978 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:34:42,979 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:34:42,980 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 13:34:43,023 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:34:43,024 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:34:43,025 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:34:43,026 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:34:43,026 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:34:43,026 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:34:43,026 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:34:43,027 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:34:43,027 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:34:43,027 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:34:43,029 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:34:43,030 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:34:43,030 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:34:43,030 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:34:43,030 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:34:43,030 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:34:43,031 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 13:34:43,031 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 13:34:43,031 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:34:43,031 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:34:43,032 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:34:43,032 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:34:43,032 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 13:34:43,032 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:34:43,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:34:43,033 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:34:43,033 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:34:43,033 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:34:43,033 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 13:34:43,034 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 13:34:43,034 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:34:43,034 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:34:43,034 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:34:43,035 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_9105316d-c42e-4b7d-95ed-8ebd4a186963/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8dda3f7c080a6e7302d861accabde0bee64e4cb5e7a0fb77650fdd775ecd7779 [2021-11-19 13:34:43,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:34:43,460 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:34:43,463 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:34:43,464 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:34:43,465 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:34:43,467 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i [2021-11-19 13:34:43,546 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/data/d5def867d/53342a8525234464b6e393868632ba99/FLAG2cfd4685e [2021-11-19 13:34:44,544 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:34:44,545 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i [2021-11-19 13:34:44,613 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/data/d5def867d/53342a8525234464b6e393868632ba99/FLAG2cfd4685e [2021-11-19 13:34:44,899 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/data/d5def867d/53342a8525234464b6e393868632ba99 [2021-11-19 13:34:44,902 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:34:44,904 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:34:44,908 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:34:44,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:34:44,912 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:34:44,913 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:34:44" (1/1) ... [2021-11-19 13:34:44,916 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30391938 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:34:44, skipping insertion in model container [2021-11-19 13:34:44,916 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:34:44" (1/1) ... [2021-11-19 13:34:44,924 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:34:45,126 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:34:48,276 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_9105316d-c42e-4b7d-95ed-8ebd4a186963/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[334651,334664] [2021-11-19 13:34:48,280 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_9105316d-c42e-4b7d-95ed-8ebd4a186963/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[334820,334833] [2021-11-19 13:34:48,281 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_9105316d-c42e-4b7d-95ed-8ebd4a186963/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[334987,335000] [2021-11-19 13:34:48,281 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_9105316d-c42e-4b7d-95ed-8ebd4a186963/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[335155,335168] [2021-11-19 13:34:48,315 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:34:48,379 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 13:34:48,457 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:34:48,792 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_9105316d-c42e-4b7d-95ed-8ebd4a186963/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[334651,334664] [2021-11-19 13:34:48,792 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_9105316d-c42e-4b7d-95ed-8ebd4a186963/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[334820,334833] [2021-11-19 13:34:48,793 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_9105316d-c42e-4b7d-95ed-8ebd4a186963/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[334987,335000] [2021-11-19 13:34:48,793 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_9105316d-c42e-4b7d-95ed-8ebd4a186963/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[335155,335168] [2021-11-19 13:34:48,800 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:34:48,859 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 13:34:49,203 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_9105316d-c42e-4b7d-95ed-8ebd4a186963/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[334651,334664] [2021-11-19 13:34:49,204 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_9105316d-c42e-4b7d-95ed-8ebd4a186963/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[334820,334833] [2021-11-19 13:34:49,204 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_9105316d-c42e-4b7d-95ed-8ebd4a186963/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[334987,335000] [2021-11-19 13:34:49,204 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_9105316d-c42e-4b7d-95ed-8ebd4a186963/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[335155,335168] [2021-11-19 13:34:49,215 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:34:49,532 INFO L208 MainTranslator]: Completed translation [2021-11-19 13:34:49,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:34:49 WrapperNode [2021-11-19 13:34:49,536 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:34:49,537 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 13:34:49,538 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 13:34:49,538 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 13:34:49,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:34:49" (1/1) ... [2021-11-19 13:34:49,674 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:34:49" (1/1) ... [2021-11-19 13:34:49,995 INFO L137 Inliner]: procedures = 469, calls = 1830, calls flagged for inlining = 226, calls inlined = 204, statements flattened = 4410 [2021-11-19 13:34:49,997 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 13:34:49,999 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 13:34:49,999 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 13:34:49,999 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 13:34:50,018 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:34:49" (1/1) ... [2021-11-19 13:34:50,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:34:49" (1/1) ... [2021-11-19 13:34:50,086 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:34:49" (1/1) ... [2021-11-19 13:34:50,086 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:34:49" (1/1) ... [2021-11-19 13:34:50,241 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:34:49" (1/1) ... [2021-11-19 13:34:50,275 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:34:49" (1/1) ... [2021-11-19 13:34:50,317 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:34:49" (1/1) ... [2021-11-19 13:34:50,357 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 13:34:50,358 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 13:34:50,359 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 13:34:50,359 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 13:34:50,360 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:34:49" (1/1) ... [2021-11-19 13:34:50,370 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:34:50,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:34:50,396 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 13:34:50,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 13:34:50,445 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-19 13:34:50,445 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-19 13:34:50,445 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_get_stats [2021-11-19 13:34:50,445 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_get_stats [2021-11-19 13:34:50,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 13:34:50,446 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 13:34:50,446 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-19 13:34:50,446 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-19 13:34:50,446 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-19 13:34:50,447 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-19 13:34:50,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 13:34:50,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 13:34:50,447 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-19 13:34:50,447 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-19 13:34:50,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 13:34:50,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 13:34:50,449 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2021-11-19 13:34:50,449 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2021-11-19 13:34:50,449 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-19 13:34:50,449 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-19 13:34:50,449 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-19 13:34:50,450 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-19 13:34:50,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2021-11-19 13:34:50,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2021-11-19 13:34:50,450 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-19 13:34:50,450 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-19 13:34:50,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 13:34:50,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 13:34:50,451 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-19 13:34:50,451 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-19 13:34:50,452 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-19 13:34:50,452 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-19 13:34:50,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 13:34:50,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 13:34:50,453 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2021-11-19 13:34:50,453 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2021-11-19 13:34:50,453 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-19 13:34:50,453 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-19 13:34:50,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 13:34:50,453 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-19 13:34:50,454 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-19 13:34:50,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 13:34:50,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 13:34:50,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 13:34:50,456 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-19 13:34:50,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-19 13:34:50,456 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_tx_timeout [2021-11-19 13:34:50,457 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_tx_timeout [2021-11-19 13:34:50,457 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-19 13:34:50,457 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-19 13:34:50,458 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_mdio_read [2021-11-19 13:34:50,458 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_mdio_read [2021-11-19 13:34:50,458 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_nway_reset [2021-11-19 13:34:50,459 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_nway_reset [2021-11-19 13:34:50,459 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-19 13:34:50,459 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-19 13:34:50,459 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_set_rx_buff_len [2021-11-19 13:34:50,459 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_set_rx_buff_len [2021-11-19 13:34:50,460 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_open [2021-11-19 13:34:50,460 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_open [2021-11-19 13:34:50,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 13:34:50,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 13:34:50,461 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-19 13:34:50,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-19 13:34:50,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-19 13:34:50,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-19 13:34:50,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-19 13:34:50,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-19 13:34:50,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-19 13:34:50,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-19 13:34:50,462 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-19 13:34:50,462 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-19 13:34:50,462 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-19 13:34:50,463 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-19 13:34:50,463 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_write_phy [2021-11-19 13:34:50,464 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_write_phy [2021-11-19 13:34:50,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-19 13:34:50,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-19 13:34:50,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 13:34:50,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-19 13:34:50,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-19 13:34:50,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-19 13:34:50,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-19 13:34:50,466 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_read_phy [2021-11-19 13:34:50,466 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_read_phy [2021-11-19 13:34:50,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-19 13:34:50,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-19 13:34:50,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 13:34:50,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 13:34:50,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 13:34:50,467 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-19 13:34:50,467 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-19 13:34:50,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 13:34:50,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 13:34:50,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 13:34:50,468 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 13:34:50,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 13:34:50,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 13:34:50,469 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-19 13:34:50,469 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-19 13:34:50,469 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_remove_one [2021-11-19 13:34:50,469 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_remove_one [2021-11-19 13:34:50,470 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-19 13:34:50,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-19 13:34:50,474 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-11-19 13:34:50,475 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-11-19 13:34:50,475 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-19 13:34:50,475 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-19 13:34:50,476 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_free_skbs [2021-11-19 13:34:50,476 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_free_skbs [2021-11-19 13:34:50,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-19 13:34:50,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-19 13:34:50,478 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-19 13:34:50,484 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-19 13:34:50,485 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-19 13:34:50,485 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-19 13:34:50,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 13:34:50,485 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2021-11-19 13:34:50,485 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2021-11-19 13:34:50,486 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2021-11-19 13:34:50,486 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2021-11-19 13:34:50,486 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2021-11-19 13:34:50,486 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2021-11-19 13:34:50,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 13:34:50,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 13:34:50,487 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_close [2021-11-19 13:34:50,487 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_close [2021-11-19 13:34:50,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 13:34:50,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 13:34:50,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 13:34:50,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 13:34:50,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 13:34:50,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 13:34:50,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 13:34:50,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 13:34:50,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 13:34:50,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 13:34:50,489 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-19 13:34:50,489 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-19 13:34:50,489 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_mdio_write [2021-11-19 13:34:50,489 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_mdio_write [2021-11-19 13:34:50,490 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_read_mib [2021-11-19 13:34:50,490 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_read_mib [2021-11-19 13:34:50,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-19 13:34:50,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-19 13:34:50,491 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_interrupt [2021-11-19 13:34:50,491 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_interrupt [2021-11-19 13:34:50,491 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-19 13:34:50,491 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-19 13:34:50,491 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_set_coalesce [2021-11-19 13:34:50,492 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_set_coalesce [2021-11-19 13:34:50,492 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-19 13:34:50,492 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-19 13:34:50,492 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-19 13:34:50,492 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-19 13:34:50,492 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-19 13:34:50,493 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-19 13:34:50,493 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-19 13:34:50,493 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-19 13:34:50,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 13:34:50,494 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2021-11-19 13:34:50,494 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2021-11-19 13:34:50,494 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-19 13:34:50,494 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-19 13:34:50,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 13:34:50,494 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_disable_interrupt [2021-11-19 13:34:50,495 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_disable_interrupt [2021-11-19 13:34:50,495 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-19 13:34:50,496 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-19 13:34:50,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 13:34:50,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 13:34:50,496 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_set_multicast_list [2021-11-19 13:34:50,496 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_set_multicast_list [2021-11-19 13:34:50,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 13:34:50,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 13:34:50,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 13:34:50,497 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_resume [2021-11-19 13:34:50,499 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_resume [2021-11-19 13:34:50,499 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-19 13:34:50,499 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-19 13:34:50,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 13:34:50,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 13:34:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-19 13:34:50,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-19 13:34:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_66 [2021-11-19 13:34:50,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_66 [2021-11-19 13:34:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_restart [2021-11-19 13:34:50,500 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_restart [2021-11-19 13:34:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-19 13:34:50,501 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-19 13:34:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-19 13:34:50,501 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-19 13:34:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-19 13:34:50,501 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-19 13:34:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-19 13:34:50,502 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-19 13:34:50,502 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-19 13:34:50,502 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-19 13:34:50,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 13:34:50,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 13:34:50,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 13:34:50,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 13:34:50,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 13:34:50,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 13:34:50,503 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_stop_chip [2021-11-19 13:34:50,503 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_stop_chip [2021-11-19 13:34:50,503 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-19 13:34:50,504 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-19 13:34:50,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_68 [2021-11-19 13:34:50,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_68 [2021-11-19 13:34:50,504 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_poll [2021-11-19 13:34:50,504 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_poll [2021-11-19 13:34:50,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_amd8111e_priv [2021-11-19 13:34:50,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_amd8111e_priv [2021-11-19 13:34:50,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 13:34:50,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 13:34:50,505 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-19 13:34:50,505 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-19 13:34:50,505 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_get_regs_len [2021-11-19 13:34:50,505 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_get_regs_len [2021-11-19 13:34:50,506 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-19 13:34:50,506 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-19 13:34:50,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_amd8111e_priv [2021-11-19 13:34:50,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_amd8111e_priv [2021-11-19 13:34:50,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-19 13:34:50,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-19 13:34:51,515 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 13:34:51,522 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 13:34:57,417 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 13:35:26,365 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-19 13:35:26,617 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 13:35:26,637 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 13:35:26,637 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 13:35:26,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:35:26 BoogieIcfgContainer [2021-11-19 13:35:26,644 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 13:35:26,646 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 13:35:26,646 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 13:35:26,649 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 13:35:26,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:34:44" (1/3) ... [2021-11-19 13:35:26,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34454816 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:35:26, skipping insertion in model container [2021-11-19 13:35:26,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:34:49" (2/3) ... [2021-11-19 13:35:26,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34454816 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:35:26, skipping insertion in model container [2021-11-19 13:35:26,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:35:26" (3/3) ... [2021-11-19 13:35:26,652 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i [2021-11-19 13:35:26,658 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 13:35:26,659 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-19 13:35:26,723 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 13:35:26,729 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 13:35:26,730 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-19 13:35:26,790 INFO L276 IsEmpty]: Start isEmpty. Operand has 1805 states, 1186 states have (on average 1.245362563237774) internal successors, (1477), 1219 states have internal predecessors, (1477), 519 states have call successors, (519), 98 states have call predecessors, (519), 97 states have return successors, (514), 505 states have call predecessors, (514), 514 states have call successors, (514) [2021-11-19 13:35:26,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-19 13:35:26,804 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:35:26,805 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:35:26,806 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 13:35:26,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:35:26,812 INFO L85 PathProgramCache]: Analyzing trace with hash 2048454615, now seen corresponding path program 1 times [2021-11-19 13:35:26,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:35:26,828 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2009474345] [2021-11-19 13:35:26,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:35:26,829 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:35:26,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:35:26,832 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:35:26,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 13:35:27,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:35:28,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 930 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:35:28,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:35:28,439 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2021-11-19 13:35:28,440 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:35:28,891 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2021-11-19 13:35:28,892 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:35:28,892 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2009474345] [2021-11-19 13:35:28,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2009474345] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:35:28,893 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:35:28,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:35:28,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399161601] [2021-11-19 13:35:28,899 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:35:28,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:35:28,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:35:28,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:35:28,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:35:28,954 INFO L87 Difference]: Start difference. First operand has 1805 states, 1186 states have (on average 1.245362563237774) internal successors, (1477), 1219 states have internal predecessors, (1477), 519 states have call successors, (519), 98 states have call predecessors, (519), 97 states have return successors, (514), 505 states have call predecessors, (514), 514 states have call successors, (514) Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 4 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2021-11-19 13:35:31,106 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 13:35:37,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:35:37,963 INFO L93 Difference]: Finished difference Result 7025 states and 10021 transitions. [2021-11-19 13:35:37,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:35:37,966 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 4 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 134 [2021-11-19 13:35:37,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:35:38,039 INFO L225 Difference]: With dead ends: 7025 [2021-11-19 13:35:38,040 INFO L226 Difference]: Without dead ends: 5228 [2021-11-19 13:35:38,061 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 264 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 13:35:38,065 INFO L933 BasicCegarLoop]: 3499 mSDtfsCounter, 6246 mSDsluCounter, 3838 mSDsCounter, 0 mSdLazyCounter, 1029 mSolverCounterSat, 977 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6246 SdHoareTripleChecker+Valid, 7337 SdHoareTripleChecker+Invalid, 2007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 977 IncrementalHoareTripleChecker+Valid, 1029 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2021-11-19 13:35:38,066 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6246 Valid, 7337 Invalid, 2007 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [977 Valid, 1029 Invalid, 1 Unknown, 0 Unchecked, 8.4s Time] [2021-11-19 13:35:38,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5228 states. [2021-11-19 13:35:38,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5228 to 5202. [2021-11-19 13:35:38,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5202 states, 3441 states have (on average 1.2374309793664633) internal successors, (4258), 3535 states have internal predecessors, (4258), 1472 states have call successors, (1472), 287 states have call predecessors, (1472), 286 states have return successors, (1469), 1442 states have call predecessors, (1469), 1469 states have call successors, (1469) [2021-11-19 13:35:38,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5202 states to 5202 states and 7199 transitions. [2021-11-19 13:35:38,615 INFO L78 Accepts]: Start accepts. Automaton has 5202 states and 7199 transitions. Word has length 134 [2021-11-19 13:35:38,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:35:38,620 INFO L470 AbstractCegarLoop]: Abstraction has 5202 states and 7199 transitions. [2021-11-19 13:35:38,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 4 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2021-11-19 13:35:38,620 INFO L276 IsEmpty]: Start isEmpty. Operand 5202 states and 7199 transitions. [2021-11-19 13:35:38,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-19 13:35:38,640 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:35:38,641 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:35:38,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 13:35:38,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:35:38,863 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 13:35:38,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:35:38,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1730628574, now seen corresponding path program 1 times [2021-11-19 13:35:38,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:35:38,865 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [68768494] [2021-11-19 13:35:38,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:35:38,865 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:35:38,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:35:38,871 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:35:38,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 13:35:39,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:35:39,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 989 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:35:40,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:35:40,353 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2021-11-19 13:35:40,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:35:40,738 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2021-11-19 13:35:40,739 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:35:40,739 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [68768494] [2021-11-19 13:35:40,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [68768494] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:35:40,739 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:35:40,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:35:40,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145948304] [2021-11-19 13:35:40,740 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:35:40,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:35:40,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:35:40,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:35:40,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:35:40,745 INFO L87 Difference]: Start difference. First operand 5202 states and 7199 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 4 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-19 13:35:42,837 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 13:35:49,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:35:49,954 INFO L93 Difference]: Finished difference Result 20403 states and 28292 transitions. [2021-11-19 13:35:49,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:35:49,956 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 4 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) Word has length 148 [2021-11-19 13:35:49,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:35:50,095 INFO L225 Difference]: With dead ends: 20403 [2021-11-19 13:35:50,095 INFO L226 Difference]: Without dead ends: 15226 [2021-11-19 13:35:50,135 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 292 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 13:35:50,136 INFO L933 BasicCegarLoop]: 3546 mSDtfsCounter, 6218 mSDsluCounter, 3783 mSDsCounter, 0 mSdLazyCounter, 1015 mSolverCounterSat, 1021 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6218 SdHoareTripleChecker+Valid, 7329 SdHoareTripleChecker+Invalid, 2037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1021 IncrementalHoareTripleChecker+Valid, 1015 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2021-11-19 13:35:50,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6218 Valid, 7329 Invalid, 2037 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1021 Valid, 1015 Invalid, 1 Unknown, 0 Unchecked, 8.3s Time] [2021-11-19 13:35:50,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15226 states. [2021-11-19 13:35:51,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15226 to 15152. [2021-11-19 13:35:51,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15152 states, 10033 states have (on average 1.2399083026014153) internal successors, (12440), 10329 states have internal predecessors, (12440), 4272 states have call successors, (4272), 857 states have call predecessors, (4272), 844 states have return successors, (4311), 4148 states have call predecessors, (4311), 4269 states have call successors, (4311) [2021-11-19 13:35:51,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15152 states to 15152 states and 21023 transitions. [2021-11-19 13:35:51,275 INFO L78 Accepts]: Start accepts. Automaton has 15152 states and 21023 transitions. Word has length 148 [2021-11-19 13:35:51,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:35:51,278 INFO L470 AbstractCegarLoop]: Abstraction has 15152 states and 21023 transitions. [2021-11-19 13:35:51,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 4 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-19 13:35:51,280 INFO L276 IsEmpty]: Start isEmpty. Operand 15152 states and 21023 transitions. [2021-11-19 13:35:51,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-11-19 13:35:51,286 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:35:51,286 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:35:51,319 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 13:35:51,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:35:51,501 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 13:35:51,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:35:51,502 INFO L85 PathProgramCache]: Analyzing trace with hash 20671367, now seen corresponding path program 1 times [2021-11-19 13:35:51,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:35:51,503 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [925554814] [2021-11-19 13:35:51,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:35:51,503 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:35:51,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:35:51,506 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:35:51,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 13:35:52,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:35:52,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 973 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:35:52,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:35:52,934 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2021-11-19 13:35:52,935 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:35:53,303 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2021-11-19 13:35:53,303 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:35:53,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [925554814] [2021-11-19 13:35:53,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [925554814] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:35:53,304 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:35:53,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 13:35:53,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110327488] [2021-11-19 13:35:53,305 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:35:53,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 13:35:53,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:35:53,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 13:35:53,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:35:53,306 INFO L87 Difference]: Start difference. First operand 15152 states and 21023 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-19 13:35:55,574 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:35:56,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:35:56,782 INFO L93 Difference]: Finished difference Result 42511 states and 58865 transitions. [2021-11-19 13:35:56,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:35:56,783 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 146 [2021-11-19 13:35:56,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:35:56,989 INFO L225 Difference]: With dead ends: 42511 [2021-11-19 13:35:56,989 INFO L226 Difference]: Without dead ends: 27384 [2021-11-19 13:35:57,079 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 289 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 13:35:57,086 INFO L933 BasicCegarLoop]: 2939 mSDtfsCounter, 2046 mSDsluCounter, 2393 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2046 SdHoareTripleChecker+Valid, 5332 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-19 13:35:57,087 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2046 Valid, 5332 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 69 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2021-11-19 13:35:57,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27384 states. [2021-11-19 13:35:58,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27384 to 27341. [2021-11-19 13:35:58,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27341 states, 17968 states have (on average 1.238479519145147) internal successors, (22253), 18540 states have internal predecessors, (22253), 7719 states have call successors, (7719), 1676 states have call predecessors, (7719), 1651 states have return successors, (7809), 7460 states have call predecessors, (7809), 7716 states have call successors, (7809) [2021-11-19 13:35:58,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27341 states to 27341 states and 37781 transitions. [2021-11-19 13:35:58,937 INFO L78 Accepts]: Start accepts. Automaton has 27341 states and 37781 transitions. Word has length 146 [2021-11-19 13:35:58,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:35:58,938 INFO L470 AbstractCegarLoop]: Abstraction has 27341 states and 37781 transitions. [2021-11-19 13:35:58,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-19 13:35:58,938 INFO L276 IsEmpty]: Start isEmpty. Operand 27341 states and 37781 transitions. [2021-11-19 13:35:58,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-11-19 13:35:58,941 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:35:58,941 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:35:58,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 13:35:59,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:35:59,155 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 13:35:59,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:35:59,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1165994526, now seen corresponding path program 1 times [2021-11-19 13:35:59,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:35:59,156 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [794949115] [2021-11-19 13:35:59,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:35:59,157 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:35:59,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:35:59,160 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:35:59,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 13:36:00,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:36:00,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 1016 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:36:00,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:36:00,425 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2021-11-19 13:36:00,425 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:36:00,788 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2021-11-19 13:36:00,788 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:36:00,789 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [794949115] [2021-11-19 13:36:00,789 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [794949115] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:36:00,789 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:36:00,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:36:00,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584564841] [2021-11-19 13:36:00,790 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:36:00,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:36:00,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:36:00,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:36:00,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:36:00,791 INFO L87 Difference]: Start difference. First operand 27341 states and 37781 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2021-11-19 13:36:02,917 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:36:08,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:36:08,608 INFO L93 Difference]: Finished difference Result 65041 states and 89233 transitions. [2021-11-19 13:36:08,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:36:08,609 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 150 [2021-11-19 13:36:08,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:36:08,804 INFO L225 Difference]: With dead ends: 65041 [2021-11-19 13:36:08,804 INFO L226 Difference]: Without dead ends: 37725 [2021-11-19 13:36:08,905 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 296 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 13:36:08,908 INFO L933 BasicCegarLoop]: 4302 mSDtfsCounter, 3964 mSDsluCounter, 4063 mSDsCounter, 0 mSdLazyCounter, 1089 mSolverCounterSat, 41 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3964 SdHoareTripleChecker+Valid, 8365 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1089 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2021-11-19 13:36:08,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3964 Valid, 8365 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1089 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2021-11-19 13:36:08,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37725 states. [2021-11-19 13:36:11,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37725 to 37665. [2021-11-19 13:36:11,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37665 states, 25182 states have (on average 1.2341354936065443) internal successors, (31078), 25942 states have internal predecessors, (31078), 10027 states have call successors, (10027), 2486 states have call predecessors, (10027), 2453 states have return successors, (10086), 9698 states have call predecessors, (10086), 10024 states have call successors, (10086) [2021-11-19 13:36:12,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37665 states to 37665 states and 51191 transitions. [2021-11-19 13:36:12,234 INFO L78 Accepts]: Start accepts. Automaton has 37665 states and 51191 transitions. Word has length 150 [2021-11-19 13:36:12,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:36:12,235 INFO L470 AbstractCegarLoop]: Abstraction has 37665 states and 51191 transitions. [2021-11-19 13:36:12,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2021-11-19 13:36:12,236 INFO L276 IsEmpty]: Start isEmpty. Operand 37665 states and 51191 transitions. [2021-11-19 13:36:12,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-11-19 13:36:12,239 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:36:12,239 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:36:12,268 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-19 13:36:12,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:36:12,454 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 13:36:12,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:36:12,455 INFO L85 PathProgramCache]: Analyzing trace with hash 915898716, now seen corresponding path program 1 times [2021-11-19 13:36:12,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:36:12,456 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1262989806] [2021-11-19 13:36:12,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:36:12,457 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:36:12,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:36:12,458 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:36:12,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 13:36:13,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:36:13,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 1051 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:36:13,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:36:14,579 INFO L134 CoverageAnalysis]: Checked inductivity of 573 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 573 trivial. 0 not checked. [2021-11-19 13:36:14,579 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:36:15,248 INFO L134 CoverageAnalysis]: Checked inductivity of 573 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 573 trivial. 0 not checked. [2021-11-19 13:36:15,248 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:36:15,248 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1262989806] [2021-11-19 13:36:15,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1262989806] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:36:15,248 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:36:15,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-19 13:36:15,249 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710618923] [2021-11-19 13:36:15,249 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:36:15,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 13:36:15,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:36:15,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 13:36:15,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:36:15,251 INFO L87 Difference]: Start difference. First operand 37665 states and 51191 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (41), 4 states have call predecessors, (41), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-19 13:36:16,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:36:16,776 INFO L93 Difference]: Finished difference Result 37671 states and 51196 transitions. [2021-11-19 13:36:16,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:36:16,777 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (41), 4 states have call predecessors, (41), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 186 [2021-11-19 13:36:16,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:36:16,929 INFO L225 Difference]: With dead ends: 37671 [2021-11-19 13:36:16,929 INFO L226 Difference]: Without dead ends: 37669 [2021-11-19 13:36:16,942 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:36:16,943 INFO L933 BasicCegarLoop]: 2477 mSDtfsCounter, 2391 mSDsluCounter, 9883 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2402 SdHoareTripleChecker+Valid, 12360 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:36:16,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2402 Valid, 12360 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:36:16,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37669 states. [2021-11-19 13:36:18,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37669 to 37669. [2021-11-19 13:36:18,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37669 states, 25185 states have (on average 1.2341076037323804) internal successors, (31081), 25945 states have internal predecessors, (31081), 10027 states have call successors, (10027), 2487 states have call predecessors, (10027), 2454 states have return successors, (10086), 9698 states have call predecessors, (10086), 10024 states have call successors, (10086) [2021-11-19 13:36:19,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37669 states to 37669 states and 51194 transitions. [2021-11-19 13:36:19,017 INFO L78 Accepts]: Start accepts. Automaton has 37669 states and 51194 transitions. Word has length 186 [2021-11-19 13:36:19,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:36:19,018 INFO L470 AbstractCegarLoop]: Abstraction has 37669 states and 51194 transitions. [2021-11-19 13:36:19,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (41), 4 states have call predecessors, (41), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-19 13:36:19,019 INFO L276 IsEmpty]: Start isEmpty. Operand 37669 states and 51194 transitions. [2021-11-19 13:36:19,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-11-19 13:36:19,025 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:36:19,025 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:36:19,062 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 13:36:19,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:36:19,252 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 13:36:19,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:36:19,252 INFO L85 PathProgramCache]: Analyzing trace with hash -920104656, now seen corresponding path program 1 times [2021-11-19 13:36:19,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:36:19,254 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [443132716] [2021-11-19 13:36:19,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:36:19,254 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:36:19,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:36:19,257 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:36:19,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 13:36:20,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:36:20,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 1058 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:36:20,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:36:21,167 INFO L134 CoverageAnalysis]: Checked inductivity of 575 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 573 trivial. 0 not checked. [2021-11-19 13:36:21,167 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:36:21,839 INFO L134 CoverageAnalysis]: Checked inductivity of 575 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 573 trivial. 0 not checked. [2021-11-19 13:36:21,839 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:36:21,839 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [443132716] [2021-11-19 13:36:21,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [443132716] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:36:21,840 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:36:21,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 13:36:21,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707789024] [2021-11-19 13:36:21,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:36:21,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:36:21,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:36:21,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:36:21,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:36:21,842 INFO L87 Difference]: Start difference. First operand 37669 states and 51194 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-19 13:36:23,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:36:23,228 INFO L93 Difference]: Finished difference Result 37675 states and 51199 transitions. [2021-11-19 13:36:23,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:36:23,229 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 191 [2021-11-19 13:36:23,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:36:23,410 INFO L225 Difference]: With dead ends: 37675 [2021-11-19 13:36:23,410 INFO L226 Difference]: Without dead ends: 37673 [2021-11-19 13:36:23,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 375 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:36:23,433 INFO L933 BasicCegarLoop]: 2480 mSDtfsCounter, 2419 mSDsluCounter, 4941 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2429 SdHoareTripleChecker+Valid, 7421 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:36:23,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2429 Valid, 7421 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:36:23,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37673 states. [2021-11-19 13:36:25,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37673 to 37673. [2021-11-19 13:36:25,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37673 states, 25188 states have (on average 1.2340797205018263) internal successors, (31084), 25948 states have internal predecessors, (31084), 10027 states have call successors, (10027), 2488 states have call predecessors, (10027), 2455 states have return successors, (10086), 9698 states have call predecessors, (10086), 10024 states have call successors, (10086) [2021-11-19 13:36:25,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37673 states to 37673 states and 51197 transitions. [2021-11-19 13:36:25,485 INFO L78 Accepts]: Start accepts. Automaton has 37673 states and 51197 transitions. Word has length 191 [2021-11-19 13:36:25,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:36:25,485 INFO L470 AbstractCegarLoop]: Abstraction has 37673 states and 51197 transitions. [2021-11-19 13:36:25,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-19 13:36:25,486 INFO L276 IsEmpty]: Start isEmpty. Operand 37673 states and 51197 transitions. [2021-11-19 13:36:25,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-11-19 13:36:25,489 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:36:25,490 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:36:25,526 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-19 13:36:25,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:36:25,715 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 13:36:25,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:36:25,716 INFO L85 PathProgramCache]: Analyzing trace with hash -173974116, now seen corresponding path program 1 times [2021-11-19 13:36:25,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:36:25,717 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1715368296] [2021-11-19 13:36:25,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:36:25,717 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:36:25,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:36:25,718 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:36:25,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 13:36:26,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:36:26,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 1065 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:36:26,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:36:27,560 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 577 trivial. 0 not checked. [2021-11-19 13:36:27,560 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:36:28,137 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 577 trivial. 0 not checked. [2021-11-19 13:36:28,138 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:36:28,138 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1715368296] [2021-11-19 13:36:28,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1715368296] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:36:28,138 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:36:28,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 13:36:28,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189665560] [2021-11-19 13:36:28,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:36:28,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:36:28,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:36:28,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:36:28,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:36:28,140 INFO L87 Difference]: Start difference. First operand 37673 states and 51197 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-19 13:36:29,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:36:29,814 INFO L93 Difference]: Finished difference Result 37679 states and 51202 transitions. [2021-11-19 13:36:29,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:36:29,815 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 196 [2021-11-19 13:36:29,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:36:29,997 INFO L225 Difference]: With dead ends: 37679 [2021-11-19 13:36:29,997 INFO L226 Difference]: Without dead ends: 37677 [2021-11-19 13:36:30,022 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:36:30,022 INFO L933 BasicCegarLoop]: 2480 mSDtfsCounter, 2419 mSDsluCounter, 4941 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2428 SdHoareTripleChecker+Valid, 7421 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:36:30,023 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2428 Valid, 7421 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:36:30,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37677 states. [2021-11-19 13:36:31,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37677 to 37677. [2021-11-19 13:36:32,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37677 states, 25191 states have (on average 1.2340518439125083) internal successors, (31087), 25951 states have internal predecessors, (31087), 10027 states have call successors, (10027), 2489 states have call predecessors, (10027), 2456 states have return successors, (10086), 9698 states have call predecessors, (10086), 10024 states have call successors, (10086) [2021-11-19 13:36:32,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37677 states to 37677 states and 51200 transitions. [2021-11-19 13:36:32,193 INFO L78 Accepts]: Start accepts. Automaton has 37677 states and 51200 transitions. Word has length 196 [2021-11-19 13:36:32,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:36:32,195 INFO L470 AbstractCegarLoop]: Abstraction has 37677 states and 51200 transitions. [2021-11-19 13:36:32,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-19 13:36:32,195 INFO L276 IsEmpty]: Start isEmpty. Operand 37677 states and 51200 transitions. [2021-11-19 13:36:32,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-11-19 13:36:32,200 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:36:32,201 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:36:32,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 13:36:32,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:36:32,423 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 13:36:32,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:36:32,423 INFO L85 PathProgramCache]: Analyzing trace with hash -547861392, now seen corresponding path program 1 times [2021-11-19 13:36:32,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:36:32,425 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [909215679] [2021-11-19 13:36:32,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:36:32,425 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:36:32,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:36:32,426 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:36:32,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 13:36:33,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:36:33,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 1072 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:36:33,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:36:34,401 INFO L134 CoverageAnalysis]: Checked inductivity of 591 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 585 trivial. 0 not checked. [2021-11-19 13:36:34,402 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:36:35,066 INFO L134 CoverageAnalysis]: Checked inductivity of 591 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 585 trivial. 0 not checked. [2021-11-19 13:36:35,067 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:36:35,067 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [909215679] [2021-11-19 13:36:35,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [909215679] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:36:35,067 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:36:35,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 13:36:35,068 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494414061] [2021-11-19 13:36:35,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:36:35,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:36:35,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:36:35,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:36:35,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:36:35,070 INFO L87 Difference]: Start difference. First operand 37677 states and 51200 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-19 13:36:36,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:36:36,694 INFO L93 Difference]: Finished difference Result 37683 states and 51205 transitions. [2021-11-19 13:36:36,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:36:36,700 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 201 [2021-11-19 13:36:36,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:36:36,856 INFO L225 Difference]: With dead ends: 37683 [2021-11-19 13:36:36,856 INFO L226 Difference]: Without dead ends: 37681 [2021-11-19 13:36:36,880 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 403 GetRequests, 395 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:36:36,880 INFO L933 BasicCegarLoop]: 2480 mSDtfsCounter, 2419 mSDsluCounter, 4941 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2427 SdHoareTripleChecker+Valid, 7421 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:36:36,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2427 Valid, 7421 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:36:36,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37681 states. [2021-11-19 13:36:38,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37681 to 37681. [2021-11-19 13:36:38,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37681 states, 25194 states have (on average 1.2340239739620544) internal successors, (31090), 25954 states have internal predecessors, (31090), 10027 states have call successors, (10027), 2490 states have call predecessors, (10027), 2457 states have return successors, (10086), 9698 states have call predecessors, (10086), 10024 states have call successors, (10086) [2021-11-19 13:36:39,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37681 states to 37681 states and 51203 transitions. [2021-11-19 13:36:39,134 INFO L78 Accepts]: Start accepts. Automaton has 37681 states and 51203 transitions. Word has length 201 [2021-11-19 13:36:39,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:36:39,135 INFO L470 AbstractCegarLoop]: Abstraction has 37681 states and 51203 transitions. [2021-11-19 13:36:39,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-19 13:36:39,136 INFO L276 IsEmpty]: Start isEmpty. Operand 37681 states and 51203 transitions. [2021-11-19 13:36:39,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2021-11-19 13:36:39,140 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:36:39,140 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:36:39,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-19 13:36:39,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:36:39,355 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 13:36:39,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:36:39,355 INFO L85 PathProgramCache]: Analyzing trace with hash 581343708, now seen corresponding path program 1 times [2021-11-19 13:36:39,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:36:39,357 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [654165230] [2021-11-19 13:36:39,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:36:39,357 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:36:39,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:36:39,358 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:36:39,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 13:36:40,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:36:40,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 1079 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:36:40,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:36:41,458 INFO L134 CoverageAnalysis]: Checked inductivity of 605 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 597 trivial. 0 not checked. [2021-11-19 13:36:41,458 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:36:42,122 INFO L134 CoverageAnalysis]: Checked inductivity of 605 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 597 trivial. 0 not checked. [2021-11-19 13:36:42,123 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:36:42,123 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [654165230] [2021-11-19 13:36:42,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [654165230] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:36:42,123 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:36:42,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 13:36:42,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266615764] [2021-11-19 13:36:42,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:36:42,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:36:42,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:36:42,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:36:42,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:36:42,125 INFO L87 Difference]: Start difference. First operand 37681 states and 51203 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-19 13:36:43,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:36:43,743 INFO L93 Difference]: Finished difference Result 37687 states and 51208 transitions. [2021-11-19 13:36:43,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:36:43,744 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 206 [2021-11-19 13:36:43,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:36:43,891 INFO L225 Difference]: With dead ends: 37687 [2021-11-19 13:36:43,892 INFO L226 Difference]: Without dead ends: 37685 [2021-11-19 13:36:43,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 413 GetRequests, 405 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:36:43,915 INFO L933 BasicCegarLoop]: 2480 mSDtfsCounter, 2419 mSDsluCounter, 4941 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2426 SdHoareTripleChecker+Valid, 7421 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:36:43,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2426 Valid, 7421 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:36:43,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37685 states. [2021-11-19 13:36:45,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37685 to 37685. [2021-11-19 13:36:45,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37685 states, 25197 states have (on average 1.233996110648093) internal successors, (31093), 25957 states have internal predecessors, (31093), 10027 states have call successors, (10027), 2491 states have call predecessors, (10027), 2458 states have return successors, (10086), 9698 states have call predecessors, (10086), 10024 states have call successors, (10086) [2021-11-19 13:36:46,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37685 states to 37685 states and 51206 transitions. [2021-11-19 13:36:46,007 INFO L78 Accepts]: Start accepts. Automaton has 37685 states and 51206 transitions. Word has length 206 [2021-11-19 13:36:46,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:36:46,008 INFO L470 AbstractCegarLoop]: Abstraction has 37685 states and 51206 transitions. [2021-11-19 13:36:46,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-19 13:36:46,008 INFO L276 IsEmpty]: Start isEmpty. Operand 37685 states and 51206 transitions. [2021-11-19 13:36:46,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-11-19 13:36:46,012 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:36:46,013 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 6, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:36:46,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-19 13:36:46,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:36:46,223 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 13:36:46,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:36:46,223 INFO L85 PathProgramCache]: Analyzing trace with hash -576133200, now seen corresponding path program 1 times [2021-11-19 13:36:46,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:36:46,224 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [201704543] [2021-11-19 13:36:46,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:36:46,224 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:36:46,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:36:46,225 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:36:46,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-19 13:36:47,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:36:47,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 1086 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:36:47,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:36:48,355 INFO L134 CoverageAnalysis]: Checked inductivity of 623 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2021-11-19 13:36:48,355 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:36:49,002 INFO L134 CoverageAnalysis]: Checked inductivity of 623 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2021-11-19 13:36:49,002 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:36:49,002 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [201704543] [2021-11-19 13:36:49,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [201704543] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:36:49,002 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:36:49,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 13:36:49,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856933948] [2021-11-19 13:36:49,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:36:49,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:36:49,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:36:49,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:36:49,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:36:49,004 INFO L87 Difference]: Start difference. First operand 37685 states and 51206 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-19 13:36:50,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:36:50,760 INFO L93 Difference]: Finished difference Result 37691 states and 51211 transitions. [2021-11-19 13:36:50,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:36:50,769 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 211 [2021-11-19 13:36:50,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:36:50,874 INFO L225 Difference]: With dead ends: 37691 [2021-11-19 13:36:50,874 INFO L226 Difference]: Without dead ends: 37689 [2021-11-19 13:36:50,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 415 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:36:50,889 INFO L933 BasicCegarLoop]: 2480 mSDtfsCounter, 2419 mSDsluCounter, 4941 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2425 SdHoareTripleChecker+Valid, 7421 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:36:50,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2425 Valid, 7421 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:36:50,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37689 states. [2021-11-19 13:36:52,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37689 to 37689. [2021-11-19 13:36:52,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37689 states, 25200 states have (on average 1.233968253968254) internal successors, (31096), 25960 states have internal predecessors, (31096), 10027 states have call successors, (10027), 2492 states have call predecessors, (10027), 2459 states have return successors, (10086), 9698 states have call predecessors, (10086), 10024 states have call successors, (10086) [2021-11-19 13:36:52,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37689 states to 37689 states and 51209 transitions. [2021-11-19 13:36:53,002 INFO L78 Accepts]: Start accepts. Automaton has 37689 states and 51209 transitions. Word has length 211 [2021-11-19 13:36:53,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:36:53,002 INFO L470 AbstractCegarLoop]: Abstraction has 37689 states and 51209 transitions. [2021-11-19 13:36:53,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-19 13:36:53,003 INFO L276 IsEmpty]: Start isEmpty. Operand 37689 states and 51209 transitions. [2021-11-19 13:36:53,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2021-11-19 13:36:53,007 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:36:53,007 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 7, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:36:53,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-19 13:36:53,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:36:53,211 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 13:36:53,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:36:53,226 INFO L85 PathProgramCache]: Analyzing trace with hash -2098252260, now seen corresponding path program 1 times [2021-11-19 13:36:53,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:36:53,228 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [761925992] [2021-11-19 13:36:53,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:36:53,228 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:36:53,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:36:53,229 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:36:53,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9105316d-c42e-4b7d-95ed-8ebd4a186963/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-19 13:36:54,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:36:54,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 1093 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:36:54,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:36:55,258 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 633 trivial. 0 not checked. [2021-11-19 13:36:55,258 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:36:55,971 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 633 trivial. 0 not checked. [2021-11-19 13:36:55,971 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:36:55,971 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [761925992] [2021-11-19 13:36:55,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [761925992] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:36:55,971 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:36:55,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 13:36:55,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766725903] [2021-11-19 13:36:55,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:36:55,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:36:55,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:36:55,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:36:55,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:36:55,973 INFO L87 Difference]: Start difference. First operand 37689 states and 51209 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25)