./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-smsc-smsc911x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33606252-1e11-4e7f-9fb8-7d8a1126f22c/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33606252-1e11-4e7f-9fb8-7d8a1126f22c/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33606252-1e11-4e7f-9fb8-7d8a1126f22c/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33606252-1e11-4e7f-9fb8-7d8a1126f22c/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33606252-1e11-4e7f-9fb8-7d8a1126f22c/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33606252-1e11-4e7f-9fb8-7d8a1126f22c/bin/utaipan-7li7fVZpFI --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 3eabf9223369a4133b2add72c0b71a01ceb617c9bc4081cd5107bb51f78aed61 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 01:35:54,579 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 01:35:54,582 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 01:35:54,639 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 01:35:54,640 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 01:35:54,644 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 01:35:54,647 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 01:35:54,651 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 01:35:54,654 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 01:35:54,663 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 01:35:54,664 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 01:35:54,666 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 01:35:54,667 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 01:35:54,670 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 01:35:54,672 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 01:35:54,674 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 01:35:54,676 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 01:35:54,678 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 01:35:54,679 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 01:35:54,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 01:35:54,692 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 01:35:54,693 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 01:35:54,697 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 01:35:54,698 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 01:35:54,708 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 01:35:54,708 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 01:35:54,709 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 01:35:54,710 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 01:35:54,711 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 01:35:54,712 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 01:35:54,712 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 01:35:54,715 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 01:35:54,717 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 01:35:54,719 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 01:35:54,720 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 01:35:54,720 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 01:35:54,721 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 01:35:54,721 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 01:35:54,721 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 01:35:54,722 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 01:35:54,723 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 01:35:54,724 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33606252-1e11-4e7f-9fb8-7d8a1126f22c/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 01:35:54,750 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 01:35:54,751 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 01:35:54,752 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 01:35:54,752 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 01:35:54,753 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 01:35:54,754 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 01:35:54,754 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 01:35:54,754 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 01:35:54,764 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 01:35:54,764 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 01:35:54,765 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 01:35:54,766 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 01:35:54,766 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 01:35:54,766 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 01:35:54,767 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 01:35:54,767 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 01:35:54,767 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 01:35:54,767 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 01:35:54,768 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 01:35:54,768 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 01:35:54,769 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 01:35:54,769 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 01:35:54,769 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 01:35:54,769 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 01:35:54,770 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 01:35:54,770 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 01:35:54,770 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 01:35:54,770 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 01:35:54,771 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 01:35:54,771 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:35:54,771 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 01:35:54,772 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 01:35:54,772 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 01:35:54,772 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 01:35:54,772 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 01:35:54,773 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 01:35:54,773 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 01:35:54,773 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 01:35:54,773 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_33606252-1e11-4e7f-9fb8-7d8a1126f22c/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33606252-1e11-4e7f-9fb8-7d8a1126f22c/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3eabf9223369a4133b2add72c0b71a01ceb617c9bc4081cd5107bb51f78aed61 [2022-11-03 01:35:55,102 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 01:35:55,134 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 01:35:55,137 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 01:35:55,139 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 01:35:55,139 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 01:35:55,141 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33606252-1e11-4e7f-9fb8-7d8a1126f22c/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i [2022-11-03 01:35:55,208 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33606252-1e11-4e7f-9fb8-7d8a1126f22c/bin/utaipan-7li7fVZpFI/data/edf3d92ce/c2545697c45442729e6ed6470cd40c74/FLAG06dd55963 [2022-11-03 01:35:56,233 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 01:35:56,234 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33606252-1e11-4e7f-9fb8-7d8a1126f22c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i [2022-11-03 01:35:56,316 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33606252-1e11-4e7f-9fb8-7d8a1126f22c/bin/utaipan-7li7fVZpFI/data/edf3d92ce/c2545697c45442729e6ed6470cd40c74/FLAG06dd55963 [2022-11-03 01:35:56,550 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33606252-1e11-4e7f-9fb8-7d8a1126f22c/bin/utaipan-7li7fVZpFI/data/edf3d92ce/c2545697c45442729e6ed6470cd40c74 [2022-11-03 01:35:56,552 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 01:35:56,554 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 01:35:56,557 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 01:35:56,557 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 01:35:56,561 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 01:35:56,562 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:35:56" (1/1) ... [2022-11-03 01:35:56,563 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ab74c02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:35:56, skipping insertion in model container [2022-11-03 01:35:56,563 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:35:56" (1/1) ... [2022-11-03 01:35:56,571 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 01:35:56,761 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:36:00,670 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_33606252-1e11-4e7f-9fb8-7d8a1126f22c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i[392538,392551] [2022-11-03 01:36:00,674 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_33606252-1e11-4e7f-9fb8-7d8a1126f22c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i[392707,392720] [2022-11-03 01:36:00,675 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_33606252-1e11-4e7f-9fb8-7d8a1126f22c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i[392874,392887] [2022-11-03 01:36:00,675 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_33606252-1e11-4e7f-9fb8-7d8a1126f22c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i[393042,393055] [2022-11-03 01:36:00,701 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:36:00,745 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 01:36:01,318 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_33606252-1e11-4e7f-9fb8-7d8a1126f22c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i[392538,392551] [2022-11-03 01:36:01,319 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_33606252-1e11-4e7f-9fb8-7d8a1126f22c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i[392707,392720] [2022-11-03 01:36:01,320 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_33606252-1e11-4e7f-9fb8-7d8a1126f22c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i[392874,392887] [2022-11-03 01:36:01,320 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_33606252-1e11-4e7f-9fb8-7d8a1126f22c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i[393042,393055] [2022-11-03 01:36:01,338 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:36:01,630 INFO L208 MainTranslator]: Completed translation [2022-11-03 01:36:01,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:36:01 WrapperNode [2022-11-03 01:36:01,630 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 01:36:01,632 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 01:36:01,632 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 01:36:01,632 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 01:36:01,641 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:36:01" (1/1) ... [2022-11-03 01:36:01,743 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:36:01" (1/1) ... [2022-11-03 01:36:01,982 INFO L138 Inliner]: procedures = 549, calls = 2131, calls flagged for inlining = 287, calls inlined = 262, statements flattened = 6257 [2022-11-03 01:36:01,983 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 01:36:01,984 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 01:36:01,985 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 01:36:01,986 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 01:36:01,997 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:36:01" (1/1) ... [2022-11-03 01:36:01,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:36:01" (1/1) ... [2022-11-03 01:36:02,048 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:36:01" (1/1) ... [2022-11-03 01:36:02,058 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:36:01" (1/1) ... [2022-11-03 01:36:02,281 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:36:01" (1/1) ... [2022-11-03 01:36:02,323 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:36:01" (1/1) ... [2022-11-03 01:36:02,373 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:36:01" (1/1) ... [2022-11-03 01:36:02,399 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:36:01" (1/1) ... [2022-11-03 01:36:02,450 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 01:36:02,451 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 01:36:02,451 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 01:36:02,452 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 01:36:02,453 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:36:01" (1/1) ... [2022-11-03 01:36:02,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:36:02,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33606252-1e11-4e7f-9fb8-7d8a1126f22c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:36:02,482 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33606252-1e11-4e7f-9fb8-7d8a1126f22c/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 01:36:02,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33606252-1e11-4e7f-9fb8-7d8a1126f22c/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 01:36:02,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 01:36:02,531 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 01:36:02,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_94 [2022-11-03 01:36:02,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_94 [2022-11-03 01:36:02,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 01:36:02,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 01:36:02,532 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-03 01:36:02,532 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-03 01:36:02,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_76 [2022-11-03 01:36:02,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_76 [2022-11-03 01:36:02,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-03 01:36:02,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-03 01:36:02,533 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-03 01:36:02,533 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-03 01:36:02,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2022-11-03 01:36:02,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2022-11-03 01:36:02,533 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_mii_read [2022-11-03 01:36:02,533 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_mii_read [2022-11-03 01:36:02,534 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_resume [2022-11-03 01:36:02,534 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_resume [2022-11-03 01:36:02,534 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 01:36:02,534 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 01:36:02,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_mac_lock_of_smsc911x_data [2022-11-03 01:36:02,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_mac_lock_of_smsc911x_data [2022-11-03 01:36:02,535 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_drv_probe [2022-11-03 01:36:02,535 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_drv_probe [2022-11-03 01:36:02,535 INFO L130 BoogieDeclarations]: Found specification of procedure no_printk [2022-11-03 01:36:02,535 INFO L138 BoogieDeclarations]: Found implementation of procedure no_printk [2022-11-03 01:36:02,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 01:36:02,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 01:36:02,536 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-03 01:36:02,536 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-03 01:36:02,536 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-03 01:36:02,536 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-03 01:36:02,537 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-03 01:36:02,537 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-03 01:36:02,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 01:36:02,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 01:36:02,538 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 01:36:02,538 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 01:36:02,538 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_set_multicast_list [2022-11-03 01:36:02,538 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_set_multicast_list [2022-11-03 01:36:02,539 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_set_hw_mac_address [2022-11-03 01:36:02,540 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_set_hw_mac_address [2022-11-03 01:36:02,540 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write [2022-11-03 01:36:02,540 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write [2022-11-03 01:36:02,541 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2022-11-03 01:36:02,541 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2022-11-03 01:36:02,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 01:36:02,541 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-03 01:36:02,542 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-03 01:36:02,542 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_drv_remove [2022-11-03 01:36:02,542 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_drv_remove [2022-11-03 01:36:02,543 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_rx_multicast_update [2022-11-03 01:36:02,543 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_rx_multicast_update [2022-11-03 01:36:02,543 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-03 01:36:02,543 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-03 01:36:02,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_mac_lock_of_smsc911x_data [2022-11-03 01:36:02,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_mac_lock_of_smsc911x_data [2022-11-03 01:36:02,544 INFO L130 BoogieDeclarations]: Found specification of procedure clk_unprepare [2022-11-03 01:36:02,544 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_unprepare [2022-11-03 01:36:02,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 01:36:02,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-11-03 01:36:02,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-11-03 01:36:02,545 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-03 01:36:02,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-03 01:36:02,546 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_tx_writefifo [2022-11-03 01:36:02,546 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_tx_writefifo [2022-11-03 01:36:02,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 01:36:02,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 01:36:02,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 01:36:02,547 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_irqhandler [2022-11-03 01:36:02,547 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_irqhandler [2022-11-03 01:36:02,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 01:36:02,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 01:36:02,547 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 01:36:02,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-03 01:36:02,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-03 01:36:02,549 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_disable_resources [2022-11-03 01:36:02,549 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_disable_resources [2022-11-03 01:36:02,549 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_rx_get_rxstatus [2022-11-03 01:36:02,549 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_rx_get_rxstatus [2022-11-03 01:36:02,550 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc911x_reg_read [2022-11-03 01:36:02,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc911x_reg_read [2022-11-03 01:36:02,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-03 01:36:02,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-03 01:36:02,552 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_ethtool_getregslen [2022-11-03 01:36:02,552 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_ethtool_getregslen [2022-11-03 01:36:02,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 01:36:02,552 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-03 01:36:02,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-03 01:36:02,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-03 01:36:02,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-03 01:36:02,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-03 01:36:02,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-03 01:36:02,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-11-03 01:36:02,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-11-03 01:36:02,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 01:36:02,554 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-03 01:36:02,555 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-03 01:36:02,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 01:36:02,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 01:36:02,555 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 01:36:02,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 01:36:02,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 01:36:02,560 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 01:36:02,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 01:36:02,560 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 01:36:02,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 01:36:02,561 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_mii_write [2022-11-03 01:36:02,562 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_mii_write [2022-11-03 01:36:02,562 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_mac_complete [2022-11-03 01:36:02,562 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_mac_complete [2022-11-03 01:36:02,562 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2022-11-03 01:36:02,570 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2022-11-03 01:36:02,570 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-03 01:36:02,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-03 01:36:02,571 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 01:36:02,571 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 01:36:02,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-03 01:36:02,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-03 01:36:02,571 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32_rep [2022-11-03 01:36:02,572 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32_rep [2022-11-03 01:36:02,572 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-11-03 01:36:02,572 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-11-03 01:36:02,572 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource_byname [2022-11-03 01:36:02,572 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource_byname [2022-11-03 01:36:02,572 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-03 01:36:02,573 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-03 01:36:02,573 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-03 01:36:02,573 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-03 01:36:02,573 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2022-11-03 01:36:02,573 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2022-11-03 01:36:02,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 01:36:02,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 01:36:02,574 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-03 01:36:02,574 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-03 01:36:02,574 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-03 01:36:02,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-03 01:36:02,574 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_tx_get_txstatus [2022-11-03 01:36:02,575 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_tx_get_txstatus [2022-11-03 01:36:02,575 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-03 01:36:02,575 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-03 01:36:02,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_locked_mac_lock_of_smsc911x_data [2022-11-03 01:36:02,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_locked_mac_lock_of_smsc911x_data [2022-11-03 01:36:02,575 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2022-11-03 01:36:02,576 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2022-11-03 01:36:02,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 01:36:02,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 01:36:02,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 01:36:02,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 01:36:02,576 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_rx_readfifo [2022-11-03 01:36:02,577 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_rx_readfifo [2022-11-03 01:36:02,577 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_open [2022-11-03 01:36:02,577 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_open [2022-11-03 01:36:02,577 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2022-11-03 01:36:02,577 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2022-11-03 01:36:02,577 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_ethtool_get_eeprom_len [2022-11-03 01:36:02,578 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_ethtool_get_eeprom_len [2022-11-03 01:36:02,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-03 01:36:02,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-03 01:36:02,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_dev_lock_of_smsc911x_data [2022-11-03 01:36:02,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_dev_lock_of_smsc911x_data [2022-11-03 01:36:02,578 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_rx_readfifo_shift [2022-11-03 01:36:02,579 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_rx_readfifo_shift [2022-11-03 01:36:02,579 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_suspend [2022-11-03 01:36:02,579 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_suspend [2022-11-03 01:36:02,579 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_read_mac_address [2022-11-03 01:36:02,579 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_read_mac_address [2022-11-03 01:36:02,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_93 [2022-11-03 01:36:02,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_93 [2022-11-03 01:36:02,580 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_mac_write [2022-11-03 01:36:02,580 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_mac_write [2022-11-03 01:36:02,580 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read [2022-11-03 01:36:02,580 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read [2022-11-03 01:36:02,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 01:36:02,581 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 01:36:02,581 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-03 01:36:02,583 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-03 01:36:02,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2022-11-03 01:36:02,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2022-11-03 01:36:02,583 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc911x_reg_write [2022-11-03 01:36:02,583 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc911x_reg_write [2022-11-03 01:36:02,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 01:36:02,584 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-03 01:36:02,584 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-03 01:36:02,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 01:36:02,584 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_reg_write [2022-11-03 01:36:02,584 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_reg_write [2022-11-03 01:36:02,584 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_ethtool_nwayreset [2022-11-03 01:36:02,585 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_ethtool_nwayreset [2022-11-03 01:36:02,585 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_free_resources [2022-11-03 01:36:02,585 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_free_resources [2022-11-03 01:36:02,585 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_disable_irq_chip [2022-11-03 01:36:02,585 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_disable_irq_chip [2022-11-03 01:36:02,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 01:36:02,586 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_eeprom_send_cmd [2022-11-03 01:36:02,586 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_eeprom_send_cmd [2022-11-03 01:36:02,586 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-03 01:36:02,586 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-03 01:36:02,586 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_phy_adjust_link [2022-11-03 01:36:02,586 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_phy_adjust_link [2022-11-03 01:36:02,587 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_reg_read [2022-11-03 01:36:02,587 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_reg_read [2022-11-03 01:36:02,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 01:36:02,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 01:36:02,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-03 01:36:02,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-03 01:36:02,587 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_tx_update_txcounters [2022-11-03 01:36:02,588 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_tx_update_txcounters [2022-11-03 01:36:02,588 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc911x_reg_read_shift [2022-11-03 01:36:02,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc911x_reg_read_shift [2022-11-03 01:36:02,588 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-03 01:36:02,588 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-03 01:36:02,588 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc911x_reg_write_shift [2022-11-03 01:36:02,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc911x_reg_write_shift [2022-11-03 01:36:02,589 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-03 01:36:02,589 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-03 01:36:02,589 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-03 01:36:02,589 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-03 01:36:02,589 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-03 01:36:02,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-03 01:36:02,590 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-03 01:36:02,590 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-03 01:36:02,590 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_phy_enable_external [2022-11-03 01:36:02,590 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_phy_enable_external [2022-11-03 01:36:02,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 01:36:02,591 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_mac_read [2022-11-03 01:36:02,591 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_mac_read [2022-11-03 01:36:02,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 01:36:02,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 01:36:02,592 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-03 01:36:02,597 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-03 01:36:02,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_smsc911x_cleanup_module_14_2 [2022-11-03 01:36:02,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_smsc911x_cleanup_module_14_2 [2022-11-03 01:36:02,597 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_soft_reset [2022-11-03 01:36:02,598 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_soft_reset [2022-11-03 01:36:02,598 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_eeprom_enable_access [2022-11-03 01:36:02,598 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_eeprom_enable_access [2022-11-03 01:36:02,598 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32_rep [2022-11-03 01:36:02,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32_rep [2022-11-03 01:36:02,599 INFO L130 BoogieDeclarations]: Found specification of procedure spin_is_locked [2022-11-03 01:36:02,599 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_is_locked [2022-11-03 01:36:02,600 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_stop [2022-11-03 01:36:02,600 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_stop [2022-11-03 01:36:02,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 01:36:02,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 01:36:02,600 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_tx_writefifo_shift [2022-11-03 01:36:02,600 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_tx_writefifo_shift [2022-11-03 01:36:02,600 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-11-03 01:36:02,601 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-11-03 01:36:02,601 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-03 01:36:02,601 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-03 01:36:02,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 01:36:02,601 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2022-11-03 01:36:02,601 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2022-11-03 01:36:02,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-03 01:36:02,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-03 01:36:02,602 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-03 01:36:02,602 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-03 01:36:03,868 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 01:36:03,873 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 01:36:04,407 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 01:36:08,801 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-03 01:36:09,020 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 01:36:10,191 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 01:36:10,192 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-03 01:36:10,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:36:10 BoogieIcfgContainer [2022-11-03 01:36:10,199 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 01:36:10,202 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 01:36:10,202 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 01:36:10,213 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 01:36:10,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:35:56" (1/3) ... [2022-11-03 01:36:10,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26fe59a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:36:10, skipping insertion in model container [2022-11-03 01:36:10,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:36:01" (2/3) ... [2022-11-03 01:36:10,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26fe59a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:36:10, skipping insertion in model container [2022-11-03 01:36:10,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:36:10" (3/3) ... [2022-11-03 01:36:10,217 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i [2022-11-03 01:36:10,241 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 01:36:10,241 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-03 01:36:10,387 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 01:36:10,396 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4b6d84eb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 01:36:10,396 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-03 01:36:10,407 INFO L276 IsEmpty]: Start isEmpty. Operand has 2144 states, 1255 states have (on average 1.3091633466135457) internal successors, (1643), 1292 states have internal predecessors, (1643), 767 states have call successors, (767), 122 states have call predecessors, (767), 121 states have return successors, (758), 749 states have call predecessors, (758), 758 states have call successors, (758) [2022-11-03 01:36:10,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-11-03 01:36:10,433 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:36:10,433 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:36:10,434 INFO L420 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)] === [2022-11-03 01:36:10,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:36:10,439 INFO L85 PathProgramCache]: Analyzing trace with hash 2050928444, now seen corresponding path program 1 times [2022-11-03 01:36:10,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:36:10,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204779334] [2022-11-03 01:36:10,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:36:10,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:36:10,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:36:11,557 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2022-11-03 01:36:11,557 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:36:11,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204779334] [2022-11-03 01:36:11,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204779334] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:36:11,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:36:11,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:36:11,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105136555] [2022-11-03 01:36:11,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:36:11,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:36:11,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:36:11,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:36:11,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:36:11,612 INFO L87 Difference]: Start difference. First operand has 2144 states, 1255 states have (on average 1.3091633466135457) internal successors, (1643), 1292 states have internal predecessors, (1643), 767 states have call successors, (767), 122 states have call predecessors, (767), 121 states have return successors, (758), 749 states have call predecessors, (758), 758 states have call successors, (758) Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-03 01:36:13,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:36:13,618 INFO L93 Difference]: Finished difference Result 6258 states and 9822 transitions. [2022-11-03 01:36:13,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:36:13,620 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 211 [2022-11-03 01:36:13,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:36:13,685 INFO L225 Difference]: With dead ends: 6258 [2022-11-03 01:36:13,685 INFO L226 Difference]: Without dead ends: 4140 [2022-11-03 01:36:13,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:36:13,725 INFO L413 NwaCegarLoop]: 3493 mSDtfsCounter, 2996 mSDsluCounter, 3094 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2996 SdHoareTripleChecker+Valid, 6242 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-03 01:36:13,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2996 Valid, 6242 Invalid, 735 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-03 01:36:13,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4140 states. [2022-11-03 01:36:14,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4140 to 4136. [2022-11-03 01:36:14,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4136 states, 2435 states have (on average 1.2985626283367557) internal successors, (3162), 2508 states have internal predecessors, (3162), 1460 states have call successors, (1460), 239 states have call predecessors, (1460), 238 states have return successors, (1456), 1438 states have call predecessors, (1456), 1456 states have call successors, (1456) [2022-11-03 01:36:14,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4136 states to 4136 states and 6078 transitions. [2022-11-03 01:36:14,203 INFO L78 Accepts]: Start accepts. Automaton has 4136 states and 6078 transitions. Word has length 211 [2022-11-03 01:36:14,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:36:14,207 INFO L495 AbstractCegarLoop]: Abstraction has 4136 states and 6078 transitions. [2022-11-03 01:36:14,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-03 01:36:14,208 INFO L276 IsEmpty]: Start isEmpty. Operand 4136 states and 6078 transitions. [2022-11-03 01:36:14,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-11-03 01:36:14,220 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:36:14,221 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:36:14,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 01:36:14,221 INFO L420 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)] === [2022-11-03 01:36:14,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:36:14,222 INFO L85 PathProgramCache]: Analyzing trace with hash 505897702, now seen corresponding path program 1 times [2022-11-03 01:36:14,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:36:14,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775677716] [2022-11-03 01:36:14,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:36:14,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:36:14,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:36:14,624 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2022-11-03 01:36:14,626 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:36:14,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775677716] [2022-11-03 01:36:14,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775677716] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:36:14,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:36:14,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:36:14,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7797963] [2022-11-03 01:36:14,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:36:14,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:36:14,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:36:14,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:36:14,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:36:14,632 INFO L87 Difference]: Start difference. First operand 4136 states and 6078 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-03 01:36:16,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:36:16,535 INFO L93 Difference]: Finished difference Result 12266 states and 18118 transitions. [2022-11-03 01:36:16,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:36:16,536 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 213 [2022-11-03 01:36:16,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:36:16,604 INFO L225 Difference]: With dead ends: 12266 [2022-11-03 01:36:16,604 INFO L226 Difference]: Without dead ends: 8169 [2022-11-03 01:36:16,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:36:16,633 INFO L413 NwaCegarLoop]: 3781 mSDtfsCounter, 3059 mSDsluCounter, 3087 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3059 SdHoareTripleChecker+Valid, 6523 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-03 01:36:16,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3059 Valid, 6523 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-03 01:36:16,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8169 states. [2022-11-03 01:36:17,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8169 to 8139. [2022-11-03 01:36:17,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8139 states, 4806 states have (on average 1.3006658343736996) internal successors, (6251), 4958 states have internal predecessors, (6251), 2859 states have call successors, (2859), 476 states have call predecessors, (2859), 471 states have return successors, (2943), 2804 states have call predecessors, (2943), 2855 states have call successors, (2943) [2022-11-03 01:36:17,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8139 states to 8139 states and 12053 transitions. [2022-11-03 01:36:17,228 INFO L78 Accepts]: Start accepts. Automaton has 8139 states and 12053 transitions. Word has length 213 [2022-11-03 01:36:17,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:36:17,229 INFO L495 AbstractCegarLoop]: Abstraction has 8139 states and 12053 transitions. [2022-11-03 01:36:17,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-03 01:36:17,230 INFO L276 IsEmpty]: Start isEmpty. Operand 8139 states and 12053 transitions. [2022-11-03 01:36:17,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-11-03 01:36:17,235 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:36:17,235 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:36:17,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 01:36:17,235 INFO L420 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)] === [2022-11-03 01:36:17,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:36:17,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1522153062, now seen corresponding path program 1 times [2022-11-03 01:36:17,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:36:17,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582291152] [2022-11-03 01:36:17,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:36:17,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:36:17,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:36:17,629 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2022-11-03 01:36:17,629 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:36:17,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582291152] [2022-11-03 01:36:17,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582291152] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:36:17,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:36:17,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:36:17,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030119388] [2022-11-03 01:36:17,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:36:17,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:36:17,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:36:17,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:36:17,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:36:17,633 INFO L87 Difference]: Start difference. First operand 8139 states and 12053 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-03 01:36:20,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:36:20,358 INFO L93 Difference]: Finished difference Result 23475 states and 34663 transitions. [2022-11-03 01:36:20,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:36:20,359 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 220 [2022-11-03 01:36:20,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:36:20,480 INFO L225 Difference]: With dead ends: 23475 [2022-11-03 01:36:20,481 INFO L226 Difference]: Without dead ends: 15375 [2022-11-03 01:36:20,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:36:20,621 INFO L413 NwaCegarLoop]: 3950 mSDtfsCounter, 2753 mSDsluCounter, 3027 mSDsCounter, 0 mSdLazyCounter, 834 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2753 SdHoareTripleChecker+Valid, 6654 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-03 01:36:20,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2753 Valid, 6654 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 834 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-03 01:36:20,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15375 states. [2022-11-03 01:36:21,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15375 to 15341. [2022-11-03 01:36:21,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15341 states, 9014 states have (on average 1.2885511426669625) internal successors, (11615), 9308 states have internal predecessors, (11615), 5405 states have call successors, (5405), 928 states have call predecessors, (5405), 919 states have return successors, (5493), 5298 states have call predecessors, (5493), 5401 states have call successors, (5493) [2022-11-03 01:36:21,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15341 states to 15341 states and 22513 transitions. [2022-11-03 01:36:21,697 INFO L78 Accepts]: Start accepts. Automaton has 15341 states and 22513 transitions. Word has length 220 [2022-11-03 01:36:21,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:36:21,699 INFO L495 AbstractCegarLoop]: Abstraction has 15341 states and 22513 transitions. [2022-11-03 01:36:21,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-03 01:36:21,700 INFO L276 IsEmpty]: Start isEmpty. Operand 15341 states and 22513 transitions. [2022-11-03 01:36:21,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-11-03 01:36:21,706 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:36:21,706 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:36:21,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 01:36:21,706 INFO L420 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)] === [2022-11-03 01:36:21,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:36:21,707 INFO L85 PathProgramCache]: Analyzing trace with hash 48404940, now seen corresponding path program 1 times [2022-11-03 01:36:21,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:36:21,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638848069] [2022-11-03 01:36:21,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:36:21,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:36:21,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:36:21,964 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2022-11-03 01:36:21,965 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:36:21,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638848069] [2022-11-03 01:36:21,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638848069] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:36:21,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:36:21,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:36:21,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9518405] [2022-11-03 01:36:21,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:36:21,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:36:21,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:36:21,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:36:21,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:36:21,968 INFO L87 Difference]: Start difference. First operand 15341 states and 22513 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-03 01:36:24,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:36:24,885 INFO L93 Difference]: Finished difference Result 43495 states and 63905 transitions. [2022-11-03 01:36:24,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:36:24,886 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 219 [2022-11-03 01:36:24,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:36:25,188 INFO L225 Difference]: With dead ends: 43495 [2022-11-03 01:36:25,188 INFO L226 Difference]: Without dead ends: 28193 [2022-11-03 01:36:25,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:36:25,253 INFO L413 NwaCegarLoop]: 3499 mSDtfsCounter, 2688 mSDsluCounter, 3018 mSDsCounter, 0 mSdLazyCounter, 753 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2688 SdHoareTripleChecker+Valid, 6202 SdHoareTripleChecker+Invalid, 760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-03 01:36:25,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2688 Valid, 6202 Invalid, 760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 753 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-03 01:36:25,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28193 states. [2022-11-03 01:36:26,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28193 to 28151. [2022-11-03 01:36:27,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28151 states, 16498 states have (on average 1.2792459692083888) internal successors, (21105), 17064 states have internal predecessors, (21105), 9899 states have call successors, (9899), 1780 states have call predecessors, (9899), 1751 states have return successors, (10355), 9656 states have call predecessors, (10355), 9895 states have call successors, (10355) [2022-11-03 01:36:27,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28151 states to 28151 states and 41359 transitions. [2022-11-03 01:36:27,240 INFO L78 Accepts]: Start accepts. Automaton has 28151 states and 41359 transitions. Word has length 219 [2022-11-03 01:36:27,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:36:27,241 INFO L495 AbstractCegarLoop]: Abstraction has 28151 states and 41359 transitions. [2022-11-03 01:36:27,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-03 01:36:27,242 INFO L276 IsEmpty]: Start isEmpty. Operand 28151 states and 41359 transitions. [2022-11-03 01:36:27,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-11-03 01:36:27,248 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:36:27,248 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:36:27,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 01:36:27,249 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 01:36:27,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:36:27,250 INFO L85 PathProgramCache]: Analyzing trace with hash 2044669731, now seen corresponding path program 1 times [2022-11-03 01:36:27,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:36:27,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561833667] [2022-11-03 01:36:27,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:36:27,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:36:27,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:36:27,705 INFO L134 CoverageAnalysis]: Checked inductivity of 1409 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1409 trivial. 0 not checked. [2022-11-03 01:36:27,706 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:36:27,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561833667] [2022-11-03 01:36:27,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561833667] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:36:27,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:36:27,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:36:27,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976539188] [2022-11-03 01:36:27,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:36:27,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:36:27,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:36:27,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:36:27,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:36:27,709 INFO L87 Difference]: Start difference. First operand 28151 states and 41359 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-03 01:36:31,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:36:31,497 INFO L93 Difference]: Finished difference Result 70120 states and 102956 transitions. [2022-11-03 01:36:31,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:36:31,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 234 [2022-11-03 01:36:31,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:36:31,751 INFO L225 Difference]: With dead ends: 70120 [2022-11-03 01:36:31,751 INFO L226 Difference]: Without dead ends: 42008 [2022-11-03 01:36:32,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:36:32,044 INFO L413 NwaCegarLoop]: 3533 mSDtfsCounter, 2995 mSDsluCounter, 3085 mSDsCounter, 0 mSdLazyCounter, 739 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2995 SdHoareTripleChecker+Valid, 6272 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-03 01:36:32,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2995 Valid, 6272 Invalid, 746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 739 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-03 01:36:32,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42008 states. [2022-11-03 01:36:34,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42008 to 41966. [2022-11-03 01:36:34,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41966 states, 24578 states have (on average 1.2765888192692652) internal successors, (31376), 25454 states have internal predecessors, (31376), 14731 states have call successors, (14731), 2697 states have call predecessors, (14731), 2654 states have return successors, (15417), 14339 states have call predecessors, (15417), 14727 states have call successors, (15417) [2022-11-03 01:36:35,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41966 states to 41966 states and 61524 transitions. [2022-11-03 01:36:35,538 INFO L78 Accepts]: Start accepts. Automaton has 41966 states and 61524 transitions. Word has length 234 [2022-11-03 01:36:35,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:36:35,539 INFO L495 AbstractCegarLoop]: Abstraction has 41966 states and 61524 transitions. [2022-11-03 01:36:35,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-03 01:36:35,540 INFO L276 IsEmpty]: Start isEmpty. Operand 41966 states and 61524 transitions. [2022-11-03 01:36:35,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-11-03 01:36:35,545 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:36:35,545 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:36:35,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 01:36:35,546 INFO L420 AbstractCegarLoop]: === Iteration 6 === 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)] === [2022-11-03 01:36:35,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:36:35,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1048261223, now seen corresponding path program 1 times [2022-11-03 01:36:35,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:36:35,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926810406] [2022-11-03 01:36:35,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:36:35,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:36:35,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:36:35,880 INFO L134 CoverageAnalysis]: Checked inductivity of 1409 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1409 trivial. 0 not checked. [2022-11-03 01:36:35,881 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:36:35,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926810406] [2022-11-03 01:36:35,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926810406] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:36:35,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:36:35,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:36:35,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31333438] [2022-11-03 01:36:35,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:36:35,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:36:35,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:36:35,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:36:35,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:36:35,884 INFO L87 Difference]: Start difference. First operand 41966 states and 61524 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-03 01:36:40,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:36:40,658 INFO L93 Difference]: Finished difference Result 111421 states and 163299 transitions. [2022-11-03 01:36:40,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:36:40,659 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 234 [2022-11-03 01:36:40,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:36:41,077 INFO L225 Difference]: With dead ends: 111421 [2022-11-03 01:36:41,078 INFO L226 Difference]: Without dead ends: 69494 [2022-11-03 01:36:41,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:36:41,271 INFO L413 NwaCegarLoop]: 3615 mSDtfsCounter, 2996 mSDsluCounter, 3085 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2996 SdHoareTripleChecker+Valid, 6354 SdHoareTripleChecker+Invalid, 762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-03 01:36:41,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2996 Valid, 6354 Invalid, 762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-03 01:36:41,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69494 states. [2022-11-03 01:36:44,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69494 to 69452. [2022-11-03 01:36:45,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69452 states, 40626 states have (on average 1.2740117166346674) internal successors, (51758), 42122 states have internal predecessors, (51758), 24379 states have call successors, (24379), 4515 states have call predecessors, (24379), 4444 states have return successors, (25525), 23689 states have call predecessors, (25525), 24375 states have call successors, (25525) [2022-11-03 01:36:45,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69452 states to 69452 states and 101662 transitions. [2022-11-03 01:36:45,753 INFO L78 Accepts]: Start accepts. Automaton has 69452 states and 101662 transitions. Word has length 234 [2022-11-03 01:36:45,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:36:45,754 INFO L495 AbstractCegarLoop]: Abstraction has 69452 states and 101662 transitions. [2022-11-03 01:36:45,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-03 01:36:45,754 INFO L276 IsEmpty]: Start isEmpty. Operand 69452 states and 101662 transitions. [2022-11-03 01:36:45,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-11-03 01:36:45,760 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:36:45,761 INFO L195 NwaCegarLoop]: trace histogram [21, 19, 19, 19, 19, 19, 19, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:36:45,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 01:36:45,761 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 01:36:45,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:36:45,762 INFO L85 PathProgramCache]: Analyzing trace with hash 654883610, now seen corresponding path program 1 times [2022-11-03 01:36:45,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:36:45,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582662176] [2022-11-03 01:36:45,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:36:45,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:36:45,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:36:46,061 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1446 trivial. 0 not checked. [2022-11-03 01:36:46,061 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:36:46,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582662176] [2022-11-03 01:36:46,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582662176] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:36:46,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:36:46,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:36:46,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728480888] [2022-11-03 01:36:46,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:36:46,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:36:46,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:36:46,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:36:46,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:36:46,065 INFO L87 Difference]: Start difference. First operand 69452 states and 101662 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-03 01:36:52,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:36:52,149 INFO L93 Difference]: Finished difference Result 166124 states and 243151 transitions. [2022-11-03 01:36:52,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:36:52,149 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 239 [2022-11-03 01:36:52,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:36:52,845 INFO L225 Difference]: With dead ends: 166124 [2022-11-03 01:36:52,846 INFO L226 Difference]: Without dead ends: 96711 [2022-11-03 01:36:53,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:36:53,272 INFO L413 NwaCegarLoop]: 5040 mSDtfsCounter, 2976 mSDsluCounter, 3074 mSDsCounter, 0 mSdLazyCounter, 1046 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2976 SdHoareTripleChecker+Valid, 7772 SdHoareTripleChecker+Invalid, 1058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-03 01:36:53,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2976 Valid, 7772 Invalid, 1058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1046 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-03 01:36:53,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96711 states. [2022-11-03 01:36:57,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96711 to 96623. [2022-11-03 01:36:58,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96623 states, 56964 states have (on average 1.274787585141493) internal successors, (72617), 59102 states have internal predecessors, (72617), 33357 states have call successors, (33357), 6416 states have call predecessors, (33357), 6299 states have return successors, (35113), 32308 states have call predecessors, (35113), 33353 states have call successors, (35113) [2022-11-03 01:36:58,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96623 states to 96623 states and 141087 transitions. [2022-11-03 01:36:58,597 INFO L78 Accepts]: Start accepts. Automaton has 96623 states and 141087 transitions. Word has length 239 [2022-11-03 01:36:58,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:36:58,597 INFO L495 AbstractCegarLoop]: Abstraction has 96623 states and 141087 transitions. [2022-11-03 01:36:58,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-03 01:36:58,598 INFO L276 IsEmpty]: Start isEmpty. Operand 96623 states and 141087 transitions. [2022-11-03 01:36:58,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-11-03 01:36:58,602 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:36:58,602 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:36:58,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 01:36:58,603 INFO L420 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)] === [2022-11-03 01:36:58,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:36:58,603 INFO L85 PathProgramCache]: Analyzing trace with hash 772058978, now seen corresponding path program 1 times [2022-11-03 01:36:58,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:36:58,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754775774] [2022-11-03 01:36:58,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:36:58,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:36:59,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:36:59,637 INFO L134 CoverageAnalysis]: Checked inductivity of 1559 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1559 trivial. 0 not checked. [2022-11-03 01:36:59,637 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:36:59,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754775774] [2022-11-03 01:36:59,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754775774] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:36:59,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:36:59,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 01:36:59,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113086641] [2022-11-03 01:36:59,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:36:59,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:36:59,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:36:59,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:36:59,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:36:59,640 INFO L87 Difference]: Start difference. First operand 96623 states and 141087 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28)