./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbbc888-fa24-4e44-ae16-a2078bf3d9e3/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbbc888-fa24-4e44-ae16-a2078bf3d9e3/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbbc888-fa24-4e44-ae16-a2078bf3d9e3/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbbc888-fa24-4e44-ae16-a2078bf3d9e3/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbbc888-fa24-4e44-ae16-a2078bf3d9e3/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbbc888-fa24-4e44-ae16-a2078bf3d9e3/bin/utaipan-g80aRyZoba --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 6a79b35c65887feb0e3310d99b98c096a3638844b86132f83b5aa5c0d07bcad8 --- 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-b5237d8 [2022-11-22 01:33:03,488 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:33:03,491 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:33:03,534 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:33:03,535 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:33:03,539 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:33:03,544 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:33:03,546 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:33:03,548 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:33:03,550 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:33:03,552 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:33:03,556 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:33:03,556 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:33:03,562 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:33:03,564 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:33:03,565 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:33:03,567 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:33:03,570 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:33:03,571 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:33:03,576 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:33:03,578 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:33:03,580 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:33:03,581 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:33:03,582 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:33:03,592 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:33:03,594 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:33:03,595 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:33:03,596 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:33:03,598 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:33:03,599 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:33:03,600 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:33:03,601 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:33:03,602 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:33:03,604 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:33:03,605 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:33:03,605 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:33:03,606 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:33:03,606 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:33:03,606 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:33:03,607 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:33:03,608 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:33:03,609 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbbc888-fa24-4e44-ae16-a2078bf3d9e3/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 01:33:03,648 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:33:03,649 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:33:03,650 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:33:03,650 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:33:03,651 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:33:03,651 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:33:03,651 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:33:03,652 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:33:03,652 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:33:03,652 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:33:03,653 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:33:03,653 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:33:03,654 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:33:03,654 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:33:03,654 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:33:03,655 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:33:03,655 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:33:03,655 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:33:03,656 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:33:03,656 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:33:03,657 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:33:03,657 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:33:03,657 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:33:03,657 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:33:03,658 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:33:03,658 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:33:03,659 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:33:03,659 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:33:03,659 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:33:03,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:33:03,660 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:33:03,661 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:33:03,661 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:33:03,661 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:33:03,662 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:33:03,662 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:33:03,662 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:33:03,662 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:33:03,663 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_4cbbc888-fa24-4e44-ae16-a2078bf3d9e3/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbbc888-fa24-4e44-ae16-a2078bf3d9e3/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a79b35c65887feb0e3310d99b98c096a3638844b86132f83b5aa5c0d07bcad8 [2022-11-22 01:33:03,991 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:33:04,018 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:33:04,021 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:33:04,022 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:33:04,023 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:33:04,024 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbbc888-fa24-4e44-ae16-a2078bf3d9e3/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i [2022-11-22 01:33:07,065 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:33:07,868 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:33:07,868 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbbc888-fa24-4e44-ae16-a2078bf3d9e3/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i [2022-11-22 01:33:07,925 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbbc888-fa24-4e44-ae16-a2078bf3d9e3/bin/utaipan-g80aRyZoba/data/770ad73ab/1e7c8c2f60f34001a017340f1c7c6bad/FLAG1571dbecb [2022-11-22 01:33:07,943 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbbc888-fa24-4e44-ae16-a2078bf3d9e3/bin/utaipan-g80aRyZoba/data/770ad73ab/1e7c8c2f60f34001a017340f1c7c6bad [2022-11-22 01:33:07,945 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:33:07,947 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:33:07,948 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:33:07,949 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:33:07,952 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:33:07,953 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:33:07" (1/1) ... [2022-11-22 01:33:07,954 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ba33827 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:33:07, skipping insertion in model container [2022-11-22 01:33:07,955 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:33:07" (1/1) ... [2022-11-22 01:33:07,962 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:33:08,212 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:33:12,042 WARN L237 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_4cbbc888-fa24-4e44-ae16-a2078bf3d9e3/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490366,490379] [2022-11-22 01:33:12,048 WARN L237 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_4cbbc888-fa24-4e44-ae16-a2078bf3d9e3/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490535,490548] [2022-11-22 01:33:12,054 WARN L237 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_4cbbc888-fa24-4e44-ae16-a2078bf3d9e3/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490702,490715] [2022-11-22 01:33:12,055 WARN L237 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_4cbbc888-fa24-4e44-ae16-a2078bf3d9e3/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490870,490883] [2022-11-22 01:33:12,080 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:33:12,140 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:33:12,712 WARN L237 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_4cbbc888-fa24-4e44-ae16-a2078bf3d9e3/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490366,490379] [2022-11-22 01:33:12,712 WARN L237 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_4cbbc888-fa24-4e44-ae16-a2078bf3d9e3/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490535,490548] [2022-11-22 01:33:12,713 WARN L237 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_4cbbc888-fa24-4e44-ae16-a2078bf3d9e3/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490702,490715] [2022-11-22 01:33:12,713 WARN L237 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_4cbbc888-fa24-4e44-ae16-a2078bf3d9e3/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490870,490883] [2022-11-22 01:33:12,720 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:33:13,024 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:33:13,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:33:13 WrapperNode [2022-11-22 01:33:13,025 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:33:13,026 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:33:13,026 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:33:13,027 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:33:13,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:33:13" (1/1) ... [2022-11-22 01:33:13,191 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:33:13" (1/1) ... [2022-11-22 01:33:13,499 INFO L138 Inliner]: procedures = 473, calls = 4700, calls flagged for inlining = 228, calls inlined = 198, statements flattened = 8990 [2022-11-22 01:33:13,500 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:33:13,500 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:33:13,501 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:33:13,502 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:33:13,513 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:33:13" (1/1) ... [2022-11-22 01:33:13,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:33:13" (1/1) ... [2022-11-22 01:33:13,604 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:33:13" (1/1) ... [2022-11-22 01:33:13,605 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:33:13" (1/1) ... [2022-11-22 01:33:13,774 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:33:13" (1/1) ... [2022-11-22 01:33:13,800 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:33:13" (1/1) ... [2022-11-22 01:33:13,854 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:33:13" (1/1) ... [2022-11-22 01:33:13,885 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:33:13" (1/1) ... [2022-11-22 01:33:13,941 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:33:13,943 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:33:13,943 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:33:13,944 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:33:13,944 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:33:13" (1/1) ... [2022-11-22 01:33:13,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:33:13,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbbc888-fa24-4e44-ae16-a2078bf3d9e3/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:33:13,979 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbbc888-fa24-4e44-ae16-a2078bf3d9e3/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:33:13,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbbc888-fa24-4e44-ae16-a2078bf3d9e3/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:33:14,033 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_reset [2022-11-22 01:33:14,033 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_reset [2022-11-22 01:33:14,034 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_frequency_to_channel [2022-11-22 01:33:14,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_frequency_to_channel [2022-11-22 01:33:14,034 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_stop [2022-11-22 01:33:14,034 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_stop [2022-11-22 01:33:14,034 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_config_parameter_str [2022-11-22 01:33:14,034 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_config_parameter_str [2022-11-22 01:33:14,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-22 01:33:14,035 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-22 01:33:14,035 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_inform_bss [2022-11-22 01:33:14,035 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_inform_bss [2022-11-22 01:33:14,035 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_pause_rx [2022-11-22 01:33:14,035 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_pause_rx [2022-11-22 01:33:14,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 01:33:14,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 01:33:14,036 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_tx_fixup [2022-11-22 01:33:14,036 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_tx_fixup [2022-11-22 01:33:14,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-22 01:33:14,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-22 01:33:14,038 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_bind [2022-11-22 01:33:14,038 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_bind [2022-11-22 01:33:14,038 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_set_multicast_list [2022-11-22 01:33:14,039 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_set_multicast_list [2022-11-22 01:33:14,039 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_purge_paused_rxq [2022-11-22 01:33:14,039 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_purge_paused_rxq [2022-11-22 01:33:14,039 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_unbind [2022-11-22 01:33:14,039 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_unbind [2022-11-22 01:33:14,039 INFO L130 BoogieDeclarations]: Found specification of procedure set_encr_mode [2022-11-22 01:33:14,040 INFO L138 BoogieDeclarations]: Found implementation of procedure set_encr_mode [2022-11-22 01:33:14,040 INFO L130 BoogieDeclarations]: Found specification of procedure get_rndis_wlan_priv [2022-11-22 01:33:14,040 INFO L138 BoogieDeclarations]: Found implementation of procedure get_rndis_wlan_priv [2022-11-22 01:33:14,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-22 01:33:14,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-22 01:33:14,041 INFO L130 BoogieDeclarations]: Found specification of procedure set_multicast_list [2022-11-22 01:33:14,041 INFO L138 BoogieDeclarations]: Found implementation of procedure set_multicast_list [2022-11-22 01:33:14,041 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-22 01:33:14,041 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-22 01:33:14,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-22 01:33:14,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-22 01:33:14,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:33:14,042 INFO L130 BoogieDeclarations]: Found specification of procedure set_infra_mode [2022-11-22 01:33:14,042 INFO L138 BoogieDeclarations]: Found implementation of procedure set_infra_mode [2022-11-22 01:33:14,043 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_command [2022-11-22 01:33:14,043 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_command [2022-11-22 01:33:14,043 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_scan_done [2022-11-22 01:33:14,043 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_scan_done [2022-11-22 01:33:14,043 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-11-22 01:33:14,043 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-11-22 01:33:14,043 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-22 01:33:14,044 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-22 01:33:14,044 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_fill_station_info [2022-11-22 01:33:14,044 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_fill_station_info [2022-11-22 01:33:14,045 INFO L130 BoogieDeclarations]: Found specification of procedure unknown_early_init [2022-11-22 01:33:14,045 INFO L138 BoogieDeclarations]: Found implementation of procedure unknown_early_init [2022-11-22 01:33:14,045 INFO L130 BoogieDeclarations]: Found specification of procedure disassociate [2022-11-22 01:33:14,045 INFO L138 BoogieDeclarations]: Found implementation of procedure disassociate [2022-11-22 01:33:14,045 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies_relative [2022-11-22 01:33:14,045 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies_relative [2022-11-22 01:33:14,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 01:33:14,046 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_query_oid [2022-11-22 01:33:14,046 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_query_oid [2022-11-22 01:33:14,046 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2022-11-22 01:33:14,046 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2022-11-22 01:33:14,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 01:33:14,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-22 01:33:14,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-22 01:33:14,047 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_tx_timeout [2022-11-22 01:33:14,048 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_tx_timeout [2022-11-22 01:33:14,048 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_free [2022-11-22 01:33:14,048 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_free [2022-11-22 01:33:14,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:33:14,048 INFO L130 BoogieDeclarations]: Found specification of procedure is_wpa_key [2022-11-22 01:33:14,048 INFO L138 BoogieDeclarations]: Found implementation of procedure is_wpa_key [2022-11-22 01:33:14,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 01:33:14,049 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 01:33:14,050 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-22 01:33:14,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-22 01:33:14,050 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_priv [2022-11-22 01:33:14,050 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_priv [2022-11-22 01:33:14,050 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-22 01:33:14,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-22 01:33:14,051 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_check_bssid_list [2022-11-22 01:33:14,051 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_check_bssid_list [2022-11-22 01:33:14,051 INFO L130 BoogieDeclarations]: Found specification of procedure __toupper [2022-11-22 01:33:14,051 INFO L138 BoogieDeclarations]: Found implementation of procedure __toupper [2022-11-22 01:33:14,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:33:14,052 INFO L130 BoogieDeclarations]: Found specification of procedure bcm4320b_early_init [2022-11-22 01:33:14,052 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm4320b_early_init [2022-11-22 01:33:14,053 INFO L130 BoogieDeclarations]: Found specification of procedure set_channel [2022-11-22 01:33:14,053 INFO L138 BoogieDeclarations]: Found implementation of procedure set_channel [2022-11-22 01:33:14,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-22 01:33:14,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-22 01:33:14,054 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_status [2022-11-22 01:33:14,054 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_status [2022-11-22 01:33:14,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-22 01:33:14,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-22 01:33:14,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:33:14,054 INFO L130 BoogieDeclarations]: Found specification of procedure level_to_qual [2022-11-22 01:33:14,055 INFO L138 BoogieDeclarations]: Found implementation of procedure level_to_qual [2022-11-22 01:33:14,055 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-22 01:33:14,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-22 01:33:14,055 INFO L130 BoogieDeclarations]: Found specification of procedure set_essid [2022-11-22 01:33:14,056 INFO L138 BoogieDeclarations]: Found implementation of procedure set_essid [2022-11-22 01:33:14,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:33:14,060 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_put_bss [2022-11-22 01:33:14,061 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_put_bss [2022-11-22 01:33:14,061 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_start_bssid_list_scan [2022-11-22 01:33:14,061 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_start_bssid_list_scan [2022-11-22 01:33:14,062 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-22 01:33:14,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-22 01:33:14,063 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_open [2022-11-22 01:33:14,064 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_open [2022-11-22 01:33:14,064 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_copy_module_params [2022-11-22 01:33:14,069 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_copy_module_params [2022-11-22 01:33:14,069 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-22 01:33:14,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-22 01:33:14,069 INFO L130 BoogieDeclarations]: Found specification of procedure set_auth_mode [2022-11-22 01:33:14,069 INFO L138 BoogieDeclarations]: Found implementation of procedure set_auth_mode [2022-11-22 01:33:14,070 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2022-11-22 01:33:14,070 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2022-11-22 01:33:14,070 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-22 01:33:14,071 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-22 01:33:14,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:33:14,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:33:14,071 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-22 01:33:14,071 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-22 01:33:14,071 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-22 01:33:14,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-22 01:33:14,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 01:33:14,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 01:33:14,072 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 01:33:14,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 01:33:14,072 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rndis_wlan_driver_exit_11_2 [2022-11-22 01:33:14,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rndis_wlan_driver_exit_11_2 [2022-11-22 01:33:14,072 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-22 01:33:14,073 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-22 01:33:14,073 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_cipher_to_alg [2022-11-22 01:33:14,073 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_cipher_to_alg [2022-11-22 01:33:14,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-22 01:33:14,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-22 01:33:14,073 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-22 01:33:14,073 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-22 01:33:14,074 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_channel [2022-11-22 01:33:14,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_channel [2022-11-22 01:33:14,074 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-11-22 01:33:14,074 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-11-22 01:33:14,075 INFO L130 BoogieDeclarations]: Found specification of procedure add_wep_key [2022-11-22 01:33:14,075 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wep_key [2022-11-22 01:33:14,075 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_stop [2022-11-22 01:33:14,075 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_stop [2022-11-22 01:33:14,075 INFO L130 BoogieDeclarations]: Found specification of procedure is_broadcast_ether_addr [2022-11-22 01:33:14,076 INFO L138 BoogieDeclarations]: Found implementation of procedure is_broadcast_ether_addr [2022-11-22 01:33:14,076 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-22 01:33:14,076 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-22 01:33:14,076 INFO L130 BoogieDeclarations]: Found specification of procedure set_bssid [2022-11-22 01:33:14,076 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bssid [2022-11-22 01:33:14,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 01:33:14,077 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 01:33:14,077 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-22 01:33:14,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-22 01:33:14,077 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-22 01:33:14,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-22 01:33:14,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:33:14,077 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-22 01:33:14,078 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-22 01:33:14,078 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bssid [2022-11-22 01:33:14,078 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bssid [2022-11-22 01:33:14,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:33:14,078 INFO L130 BoogieDeclarations]: Found specification of procedure set_device_pmkids [2022-11-22 01:33:14,078 INFO L138 BoogieDeclarations]: Found implementation of procedure set_device_pmkids [2022-11-22 01:33:14,078 INFO L130 BoogieDeclarations]: Found specification of procedure get_device_pmkids [2022-11-22 01:33:14,079 INFO L138 BoogieDeclarations]: Found implementation of procedure get_device_pmkids [2022-11-22 01:33:14,079 INFO L130 BoogieDeclarations]: Found specification of procedure netif_addr_unlock_bh [2022-11-22 01:33:14,079 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_addr_unlock_bh [2022-11-22 01:33:14,079 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2022-11-22 01:33:14,079 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2022-11-22 01:33:14,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:33:14,081 INFO L130 BoogieDeclarations]: Found specification of procedure next_bssid_list_item [2022-11-22 01:33:14,081 INFO L138 BoogieDeclarations]: Found implementation of procedure next_bssid_list_item [2022-11-22 01:33:14,081 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-22 01:33:14,081 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-22 01:33:14,081 INFO L130 BoogieDeclarations]: Found specification of procedure set_priv_filter [2022-11-22 01:33:14,082 INFO L138 BoogieDeclarations]: Found implementation of procedure set_priv_filter [2022-11-22 01:33:14,082 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-22 01:33:14,082 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-22 01:33:14,082 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-22 01:33:14,082 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-22 01:33:14,082 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_wiphy_params [2022-11-22 01:33:14,082 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_wiphy_params [2022-11-22 01:33:14,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-22 01:33:14,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-22 01:33:14,083 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-22 01:33:14,083 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-22 01:33:14,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_7_4 [2022-11-22 01:33:14,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_7_4 [2022-11-22 01:33:14,083 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2022-11-22 01:33:14,083 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2022-11-22 01:33:14,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-22 01:33:14,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-22 01:33:14,084 INFO L130 BoogieDeclarations]: Found specification of procedure oid_to_string [2022-11-22 01:33:14,084 INFO L138 BoogieDeclarations]: Found implementation of procedure oid_to_string [2022-11-22 01:33:14,084 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2022-11-22 01:33:14,084 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2022-11-22 01:33:14,084 INFO L130 BoogieDeclarations]: Found specification of procedure deauthenticate [2022-11-22 01:33:14,084 INFO L138 BoogieDeclarations]: Found implementation of procedure deauthenticate [2022-11-22 01:33:14,085 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-22 01:33:14,085 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-22 01:33:14,085 INFO L130 BoogieDeclarations]: Found specification of procedure bcm4320a_early_init [2022-11-22 01:33:14,085 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm4320a_early_init [2022-11-22 01:33:14,085 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_michael_mic_failure [2022-11-22 01:33:14,085 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_michael_mic_failure [2022-11-22 01:33:14,085 INFO L130 BoogieDeclarations]: Found specification of procedure set_default_iw_params [2022-11-22 01:33:14,086 INFO L138 BoogieDeclarations]: Found implementation of procedure set_default_iw_params [2022-11-22 01:33:14,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:33:14,086 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_error_status [2022-11-22 01:33:14,086 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_error_status [2022-11-22 01:33:14,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 01:33:14,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 01:33:14,086 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume_rx [2022-11-22 01:33:14,086 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume_rx [2022-11-22 01:33:14,087 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2022-11-22 01:33:14,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2022-11-22 01:33:14,087 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-22 01:33:14,087 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-22 01:33:14,087 INFO L130 BoogieDeclarations]: Found specification of procedure get_bcm4320_power_dbm [2022-11-22 01:33:14,087 INFO L138 BoogieDeclarations]: Found implementation of procedure get_bcm4320_power_dbm [2022-11-22 01:33:14,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-22 01:33:14,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-22 01:33:14,088 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-22 01:33:14,088 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-22 01:33:14,089 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_rx_fixup [2022-11-22 01:33:14,093 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_rx_fixup [2022-11-22 01:33:14,093 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_oid [2022-11-22 01:33:14,093 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_oid [2022-11-22 01:33:14,093 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_indication [2022-11-22 01:33:14,093 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_indication [2022-11-22 01:33:14,093 INFO L130 BoogieDeclarations]: Found specification of procedure get_bssid [2022-11-22 01:33:14,093 INFO L138 BoogieDeclarations]: Found implementation of procedure get_bssid [2022-11-22 01:33:14,094 INFO L130 BoogieDeclarations]: Found specification of procedure is_associated [2022-11-22 01:33:14,094 INFO L138 BoogieDeclarations]: Found implementation of procedure is_associated [2022-11-22 01:33:14,095 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-22 01:33:14,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:33:14,096 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2022-11-22 01:33:14,096 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2022-11-22 01:33:14,096 INFO L130 BoogieDeclarations]: Found specification of procedure debug_print_pmkids [2022-11-22 01:33:14,096 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_print_pmkids [2022-11-22 01:33:14,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-22 01:33:14,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-22 01:33:15,363 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:33:15,367 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:33:15,839 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 01:33:37,127 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-22 01:33:37,497 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:33:39,346 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:33:39,347 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 01:33:39,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:33:39 BoogieIcfgContainer [2022-11-22 01:33:39,355 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:33:39,358 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:33:39,358 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:33:39,362 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:33:39,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:33:07" (1/3) ... [2022-11-22 01:33:39,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3faccb16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:33:39, skipping insertion in model container [2022-11-22 01:33:39,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:33:13" (2/3) ... [2022-11-22 01:33:39,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3faccb16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:33:39, skipping insertion in model container [2022-11-22 01:33:39,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:33:39" (3/3) ... [2022-11-22 01:33:39,365 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i [2022-11-22 01:33:39,386 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:33:39,386 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-22 01:33:39,505 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:33:39,514 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;@63185f81, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:33:39,515 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-22 01:33:39,528 INFO L276 IsEmpty]: Start isEmpty. Operand has 2039 states, 1232 states have (on average 1.3133116883116882) internal successors, (1618), 1236 states have internal predecessors, (1618), 689 states have call successors, (689), 116 states have call predecessors, (689), 115 states have return successors, (681), 681 states have call predecessors, (681), 681 states have call successors, (681) [2022-11-22 01:33:39,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2022-11-22 01:33:39,586 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:33:39,587 INFO L195 NwaCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:33:39,588 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)] === [2022-11-22 01:33:39,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:33:39,595 INFO L85 PathProgramCache]: Analyzing trace with hash -2063183771, now seen corresponding path program 1 times [2022-11-22 01:33:39,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:33:39,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375085695] [2022-11-22 01:33:39,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:33:39,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:33:40,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:33:41,094 INFO L134 CoverageAnalysis]: Checked inductivity of 5115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5115 trivial. 0 not checked. [2022-11-22 01:33:41,094 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:33:41,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375085695] [2022-11-22 01:33:41,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375085695] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:33:41,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:33:41,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:33:41,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879423524] [2022-11-22 01:33:41,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:33:41,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:33:41,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:33:41,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:33:41,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:33:41,153 INFO L87 Difference]: Start difference. First operand has 2039 states, 1232 states have (on average 1.3133116883116882) internal successors, (1618), 1236 states have internal predecessors, (1618), 689 states have call successors, (689), 116 states have call predecessors, (689), 115 states have return successors, (681), 681 states have call predecessors, (681), 681 states have call successors, (681) Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2022-11-22 01:33:44,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:33:47,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:33:47,146 INFO L93 Difference]: Finished difference Result 5880 states and 8673 transitions. [2022-11-22 01:33:47,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:33:47,149 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) Word has length 385 [2022-11-22 01:33:47,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:33:47,196 INFO L225 Difference]: With dead ends: 5880 [2022-11-22 01:33:47,196 INFO L226 Difference]: Without dead ends: 3902 [2022-11-22 01:33:47,212 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 [2022-11-22 01:33:47,215 INFO L413 NwaCegarLoop]: 3208 mSDtfsCounter, 2768 mSDsluCounter, 2498 mSDsCounter, 0 mSdLazyCounter, 909 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2768 SdHoareTripleChecker+Valid, 5706 SdHoareTripleChecker+Invalid, 923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 909 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:33:47,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2768 Valid, 5706 Invalid, 923 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 909 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-11-22 01:33:47,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3902 states. [2022-11-22 01:33:47,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3902 to 3898. [2022-11-22 01:33:47,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3898 states, 2380 states have (on average 1.3096638655462185) internal successors, (3117), 2387 states have internal predecessors, (3117), 1289 states have call successors, (1289), 227 states have call predecessors, (1289), 226 states have return successors, (1285), 1285 states have call predecessors, (1285), 1285 states have call successors, (1285) [2022-11-22 01:33:47,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3898 states to 3898 states and 5691 transitions. [2022-11-22 01:33:47,730 INFO L78 Accepts]: Start accepts. Automaton has 3898 states and 5691 transitions. Word has length 385 [2022-11-22 01:33:47,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:33:47,736 INFO L495 AbstractCegarLoop]: Abstraction has 3898 states and 5691 transitions. [2022-11-22 01:33:47,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2022-11-22 01:33:47,736 INFO L276 IsEmpty]: Start isEmpty. Operand 3898 states and 5691 transitions. [2022-11-22 01:33:47,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2022-11-22 01:33:47,760 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:33:47,761 INFO L195 NwaCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:33:47,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:33:47,764 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)] === [2022-11-22 01:33:47,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:33:47,765 INFO L85 PathProgramCache]: Analyzing trace with hash -388958198, now seen corresponding path program 1 times [2022-11-22 01:33:47,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:33:47,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920011687] [2022-11-22 01:33:47,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:33:47,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:33:48,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:33:48,491 INFO L134 CoverageAnalysis]: Checked inductivity of 5118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5118 trivial. 0 not checked. [2022-11-22 01:33:48,491 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:33:48,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920011687] [2022-11-22 01:33:48,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920011687] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:33:48,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:33:48,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:33:48,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33087567] [2022-11-22 01:33:48,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:33:48,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:33:48,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:33:48,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:33:48,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:33:48,495 INFO L87 Difference]: Start difference. First operand 3898 states and 5691 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-22 01:33:51,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:33:54,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:33:54,536 INFO L93 Difference]: Finished difference Result 9573 states and 13957 transitions. [2022-11-22 01:33:54,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:33:54,536 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 423 [2022-11-22 01:33:54,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:33:54,580 INFO L225 Difference]: With dead ends: 9573 [2022-11-22 01:33:54,581 INFO L226 Difference]: Without dead ends: 5748 [2022-11-22 01:33:54,602 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 [2022-11-22 01:33:54,603 INFO L413 NwaCegarLoop]: 3198 mSDtfsCounter, 2734 mSDsluCounter, 2493 mSDsCounter, 0 mSdLazyCounter, 911 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2734 SdHoareTripleChecker+Valid, 5691 SdHoareTripleChecker+Invalid, 925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 911 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:33:54,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2734 Valid, 5691 Invalid, 925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 911 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-11-22 01:33:54,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5748 states. [2022-11-22 01:33:55,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5748 to 5722. [2022-11-22 01:33:55,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5722 states, 3508 states have (on average 1.3078677309007982) internal successors, (4588), 3521 states have internal predecessors, (4588), 1869 states have call successors, (1869), 343 states have call predecessors, (1869), 342 states have return successors, (1865), 1860 states have call predecessors, (1865), 1865 states have call successors, (1865) [2022-11-22 01:33:55,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5722 states to 5722 states and 8322 transitions. [2022-11-22 01:33:55,064 INFO L78 Accepts]: Start accepts. Automaton has 5722 states and 8322 transitions. Word has length 423 [2022-11-22 01:33:55,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:33:55,067 INFO L495 AbstractCegarLoop]: Abstraction has 5722 states and 8322 transitions. [2022-11-22 01:33:55,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-22 01:33:55,067 INFO L276 IsEmpty]: Start isEmpty. Operand 5722 states and 8322 transitions. [2022-11-22 01:33:55,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2022-11-22 01:33:55,082 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:33:55,082 INFO L195 NwaCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:33:55,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:33:55,083 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)] === [2022-11-22 01:33:55,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:33:55,093 INFO L85 PathProgramCache]: Analyzing trace with hash -672632507, now seen corresponding path program 1 times [2022-11-22 01:33:55,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:33:55,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676187585] [2022-11-22 01:33:55,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:33:55,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:33:55,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:33:55,738 INFO L134 CoverageAnalysis]: Checked inductivity of 5118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5118 trivial. 0 not checked. [2022-11-22 01:33:55,738 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:33:55,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676187585] [2022-11-22 01:33:55,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676187585] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:33:55,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:33:55,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:33:55,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659571336] [2022-11-22 01:33:55,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:33:55,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:33:55,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:33:55,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:33:55,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:33:55,743 INFO L87 Difference]: Start difference. First operand 5722 states and 8322 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-22 01:33:58,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:34:01,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:34:01,405 INFO L93 Difference]: Finished difference Result 15045 states and 21860 transitions. [2022-11-22 01:34:01,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:34:01,405 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 425 [2022-11-22 01:34:01,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:34:01,477 INFO L225 Difference]: With dead ends: 15045 [2022-11-22 01:34:01,477 INFO L226 Difference]: Without dead ends: 9396 [2022-11-22 01:34:01,508 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 [2022-11-22 01:34:01,509 INFO L413 NwaCegarLoop]: 3234 mSDtfsCounter, 2732 mSDsluCounter, 2493 mSDsCounter, 0 mSdLazyCounter, 924 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2732 SdHoareTripleChecker+Valid, 5727 SdHoareTripleChecker+Invalid, 938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 924 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:34:01,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2732 Valid, 5727 Invalid, 938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 924 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-11-22 01:34:01,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9396 states. [2022-11-22 01:34:02,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9396 to 9370. [2022-11-22 01:34:02,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9370 states, 5764 states have (on average 1.306384455239417) internal successors, (7530), 5789 states have internal predecessors, (7530), 3029 states have call successors, (3029), 575 states have call predecessors, (3029), 574 states have return successors, (3025), 3010 states have call predecessors, (3025), 3025 states have call successors, (3025) [2022-11-22 01:34:02,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9370 states to 9370 states and 13584 transitions. [2022-11-22 01:34:02,245 INFO L78 Accepts]: Start accepts. Automaton has 9370 states and 13584 transitions. Word has length 425 [2022-11-22 01:34:02,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:34:02,247 INFO L495 AbstractCegarLoop]: Abstraction has 9370 states and 13584 transitions. [2022-11-22 01:34:02,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-22 01:34:02,248 INFO L276 IsEmpty]: Start isEmpty. Operand 9370 states and 13584 transitions. [2022-11-22 01:34:02,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2022-11-22 01:34:02,265 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:34:02,266 INFO L195 NwaCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:34:02,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:34:02,266 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)] === [2022-11-22 01:34:02,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:34:02,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1175912027, now seen corresponding path program 1 times [2022-11-22 01:34:02,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:34:02,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189682250] [2022-11-22 01:34:02,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:34:02,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:34:02,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:34:03,078 INFO L134 CoverageAnalysis]: Checked inductivity of 5118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5118 trivial. 0 not checked. [2022-11-22 01:34:03,079 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:34:03,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189682250] [2022-11-22 01:34:03,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189682250] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:34:03,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:34:03,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:34:03,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249654619] [2022-11-22 01:34:03,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:34:03,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:34:03,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:34:03,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:34:03,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:34:03,084 INFO L87 Difference]: Start difference. First operand 9370 states and 13584 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-22 01:34:07,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:34:09,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:34:09,175 INFO L93 Difference]: Finished difference Result 27510 states and 39870 transitions. [2022-11-22 01:34:09,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:34:09,176 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 431 [2022-11-22 01:34:09,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:34:09,300 INFO L225 Difference]: With dead ends: 27510 [2022-11-22 01:34:09,300 INFO L226 Difference]: Without dead ends: 18213 [2022-11-22 01:34:09,356 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 [2022-11-22 01:34:09,357 INFO L413 NwaCegarLoop]: 3296 mSDtfsCounter, 2689 mSDsluCounter, 2497 mSDsCounter, 0 mSdLazyCounter, 944 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2689 SdHoareTripleChecker+Valid, 5793 SdHoareTripleChecker+Invalid, 961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 944 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:34:09,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2689 Valid, 5793 Invalid, 961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 944 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-11-22 01:34:09,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18213 states. [2022-11-22 01:34:10,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18213 to 18179. [2022-11-22 01:34:10,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18179 states, 11213 states have (on average 1.3037545705877107) internal successors, (14619), 11271 states have internal predecessors, (14619), 5842 states have call successors, (5842), 1122 states have call predecessors, (5842), 1121 states have return successors, (5838), 5795 states have call predecessors, (5838), 5838 states have call successors, (5838) [2022-11-22 01:34:10,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18179 states to 18179 states and 26299 transitions. [2022-11-22 01:34:10,603 INFO L78 Accepts]: Start accepts. Automaton has 18179 states and 26299 transitions. Word has length 431 [2022-11-22 01:34:10,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:34:10,605 INFO L495 AbstractCegarLoop]: Abstraction has 18179 states and 26299 transitions. [2022-11-22 01:34:10,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-22 01:34:10,605 INFO L276 IsEmpty]: Start isEmpty. Operand 18179 states and 26299 transitions. [2022-11-22 01:34:10,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2022-11-22 01:34:10,621 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:34:10,621 INFO L195 NwaCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:34:10,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:34:10,622 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)] === [2022-11-22 01:34:10,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:34:10,622 INFO L85 PathProgramCache]: Analyzing trace with hash 9922834, now seen corresponding path program 1 times [2022-11-22 01:34:10,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:34:10,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758910888] [2022-11-22 01:34:10,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:34:10,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:34:10,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:34:11,153 INFO L134 CoverageAnalysis]: Checked inductivity of 5118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5118 trivial. 0 not checked. [2022-11-22 01:34:11,153 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:34:11,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758910888] [2022-11-22 01:34:11,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758910888] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:34:11,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:34:11,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:34:11,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684253135] [2022-11-22 01:34:11,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:34:11,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:34:11,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:34:11,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:34:11,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:34:11,156 INFO L87 Difference]: Start difference. First operand 18179 states and 26299 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-22 01:34:14,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:34:17,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:34:17,191 INFO L93 Difference]: Finished difference Result 49251 states and 71259 transitions. [2022-11-22 01:34:17,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:34:17,191 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 424 [2022-11-22 01:34:17,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:34:17,377 INFO L225 Difference]: With dead ends: 49251 [2022-11-22 01:34:17,378 INFO L226 Difference]: Without dead ends: 31145 [2022-11-22 01:34:17,469 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 [2022-11-22 01:34:17,473 INFO L413 NwaCegarLoop]: 3426 mSDtfsCounter, 2733 mSDsluCounter, 2493 mSDsCounter, 0 mSdLazyCounter, 985 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2733 SdHoareTripleChecker+Valid, 5919 SdHoareTripleChecker+Invalid, 999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 985 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:34:17,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2733 Valid, 5919 Invalid, 999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 985 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-11-22 01:34:17,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31145 states. [2022-11-22 01:34:19,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31145 to 31117. [2022-11-22 01:34:19,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31117 states, 19244 states have (on average 1.302431926834338) internal successors, (25064), 19358 states have internal predecessors, (25064), 9937 states have call successors, (9937), 1934 states have call predecessors, (9937), 1933 states have return successors, (9933), 9842 states have call predecessors, (9933), 9933 states have call successors, (9933) [2022-11-22 01:34:19,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31117 states to 31117 states and 44934 transitions. [2022-11-22 01:34:19,754 INFO L78 Accepts]: Start accepts. Automaton has 31117 states and 44934 transitions. Word has length 424 [2022-11-22 01:34:19,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:34:19,755 INFO L495 AbstractCegarLoop]: Abstraction has 31117 states and 44934 transitions. [2022-11-22 01:34:19,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-22 01:34:19,756 INFO L276 IsEmpty]: Start isEmpty. Operand 31117 states and 44934 transitions. [2022-11-22 01:34:19,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2022-11-22 01:34:19,770 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:34:19,770 INFO L195 NwaCegarLoop]: trace histogram [40, 36, 36, 36, 36, 36, 36, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:34:19,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 01:34:19,771 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:34:19,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:34:19,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1575766614, now seen corresponding path program 1 times [2022-11-22 01:34:19,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:34:19,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234879926] [2022-11-22 01:34:19,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:34:19,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:34:20,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:34:21,438 INFO L134 CoverageAnalysis]: Checked inductivity of 5374 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5374 trivial. 0 not checked. [2022-11-22 01:34:21,439 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:34:21,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234879926] [2022-11-22 01:34:21,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234879926] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:34:21,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:34:21,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:34:21,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352774656] [2022-11-22 01:34:21,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:34:21,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:34:21,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:34:21,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:34:21,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:34:21,442 INFO L87 Difference]: Start difference. First operand 31117 states and 44934 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2022-11-22 01:34:25,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:34:31,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:34:31,180 INFO L93 Difference]: Finished difference Result 59367 states and 85751 transitions. [2022-11-22 01:34:31,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:34:31,180 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 432 [2022-11-22 01:34:31,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:34:31,667 INFO L225 Difference]: With dead ends: 59367 [2022-11-22 01:34:31,667 INFO L226 Difference]: Without dead ends: 59365 [2022-11-22 01:34:31,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:34:31,696 INFO L413 NwaCegarLoop]: 3564 mSDtfsCounter, 2846 mSDsluCounter, 9524 mSDsCounter, 0 mSdLazyCounter, 2110 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2856 SdHoareTripleChecker+Valid, 13088 SdHoareTripleChecker+Invalid, 2112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2110 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:34:31,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2856 Valid, 13088 Invalid, 2112 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2110 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2022-11-22 01:34:31,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59365 states. [2022-11-22 01:34:35,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59365 to 59359. [2022-11-22 01:34:35,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59359 states, 36684 states have (on average 1.3032929887689455) internal successors, (47810), 36906 states have internal predecessors, (47810), 18972 states have call successors, (18972), 3702 states have call predecessors, (18972), 3700 states have return successors, (18964), 18784 states have call predecessors, (18964), 18964 states have call successors, (18964) [2022-11-22 01:34:35,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59359 states to 59359 states and 85746 transitions. [2022-11-22 01:34:35,478 INFO L78 Accepts]: Start accepts. Automaton has 59359 states and 85746 transitions. Word has length 432 [2022-11-22 01:34:35,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:34:35,480 INFO L495 AbstractCegarLoop]: Abstraction has 59359 states and 85746 transitions. [2022-11-22 01:34:35,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2022-11-22 01:34:35,480 INFO L276 IsEmpty]: Start isEmpty. Operand 59359 states and 85746 transitions. [2022-11-22 01:34:35,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-22 01:34:35,493 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:34:35,493 INFO L195 NwaCegarLoop]: trace histogram [40, 36, 36, 36, 36, 36, 36, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:34:35,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 01:34:35,493 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:34:35,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:34:35,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1124397153, now seen corresponding path program 1 times [2022-11-22 01:34:35,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:34:35,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158139373] [2022-11-22 01:34:35,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:34:35,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:34:36,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:34:37,373 INFO L134 CoverageAnalysis]: Checked inductivity of 5377 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5375 trivial. 0 not checked. [2022-11-22 01:34:37,374 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:34:37,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158139373] [2022-11-22 01:34:37,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158139373] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:34:37,374 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:34:37,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:34:37,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023006177] [2022-11-22 01:34:37,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:34:37,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:34:37,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:34:37,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:34:37,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:34:37,377 INFO L87 Difference]: Start difference. First operand 59359 states and 85746 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2022-11-22 01:34:41,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:34:48,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:34:48,057 INFO L93 Difference]: Finished difference Result 87532 states and 126357 transitions. [2022-11-22 01:34:48,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:34:48,058 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 438 [2022-11-22 01:34:48,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:34:48,764 INFO L225 Difference]: With dead ends: 87532 [2022-11-22 01:34:48,765 INFO L226 Difference]: Without dead ends: 87530 [2022-11-22 01:34:48,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:34:48,805 INFO L413 NwaCegarLoop]: 3564 mSDtfsCounter, 2817 mSDsluCounter, 9503 mSDsCounter, 0 mSdLazyCounter, 2107 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2826 SdHoareTripleChecker+Valid, 13067 SdHoareTripleChecker+Invalid, 2110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2107 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:34:48,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2826 Valid, 13067 Invalid, 2110 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2107 Invalid, 1 Unknown, 0 Unchecked, 7.8s Time] [2022-11-22 01:34:48,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87530 states. [2022-11-22 01:34:52,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87530 to 87511. [2022-11-22 01:34:52,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87511 states, 54022 states have (on average 1.3028395838732367) internal successors, (70382), 54367 states have internal predecessors, (70382), 27952 states have call successors, (27952), 5537 states have call predecessors, (27952), 5534 states have return successors, (28003), 27656 states have call predecessors, (28003), 27940 states have call successors, (28003) [2022-11-22 01:34:53,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87511 states to 87511 states and 126337 transitions. [2022-11-22 01:34:53,794 INFO L78 Accepts]: Start accepts. Automaton has 87511 states and 126337 transitions. Word has length 438 [2022-11-22 01:34:53,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:34:53,796 INFO L495 AbstractCegarLoop]: Abstraction has 87511 states and 126337 transitions. [2022-11-22 01:34:53,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2022-11-22 01:34:53,796 INFO L276 IsEmpty]: Start isEmpty. Operand 87511 states and 126337 transitions. [2022-11-22 01:34:53,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2022-11-22 01:34:53,821 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:34:53,821 INFO L195 NwaCegarLoop]: trace histogram [40, 36, 36, 36, 36, 36, 36, 5, 5, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:34:53,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 01:34:53,822 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)] === [2022-11-22 01:34:53,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:34:53,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1590644470, now seen corresponding path program 1 times [2022-11-22 01:34:53,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:34:53,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186417141] [2022-11-22 01:34:53,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:34:53,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:34:54,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:34:55,568 INFO L134 CoverageAnalysis]: Checked inductivity of 5382 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5378 trivial. 0 not checked. [2022-11-22 01:34:55,568 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:34:55,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186417141] [2022-11-22 01:34:55,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186417141] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:34:55,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:34:55,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:34:55,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196656844] [2022-11-22 01:34:55,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:34:55,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:34:55,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:34:55,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:34:55,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:34:55,571 INFO L87 Difference]: Start difference. First operand 87511 states and 126337 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-11-22 01:34:59,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:35:05,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:35:05,650 INFO L93 Difference]: Finished difference Result 87523 states and 126345 transitions. [2022-11-22 01:35:05,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:35:05,651 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 442 [2022-11-22 01:35:05,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:35:06,293 INFO L225 Difference]: With dead ends: 87523 [2022-11-22 01:35:06,294 INFO L226 Difference]: Without dead ends: 87521 [2022-11-22 01:35:06,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:35:06,330 INFO L413 NwaCegarLoop]: 3568 mSDtfsCounter, 2843 mSDsluCounter, 9526 mSDsCounter, 0 mSdLazyCounter, 2117 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2851 SdHoareTripleChecker+Valid, 13094 SdHoareTripleChecker+Invalid, 2119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2117 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:35:06,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2851 Valid, 13094 Invalid, 2119 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2117 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2022-11-22 01:35:06,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87521 states. [2022-11-22 01:35:10,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87521 to 87515. [2022-11-22 01:35:10,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87515 states, 54025 states have (on average 1.30282276723739) internal successors, (70385), 54370 states have internal predecessors, (70385), 27952 states have call successors, (27952), 5538 states have call predecessors, (27952), 5535 states have return successors, (28003), 27656 states have call predecessors, (28003), 27940 states have call successors, (28003) [2022-11-22 01:35:10,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87515 states to 87515 states and 126340 transitions. [2022-11-22 01:35:10,943 INFO L78 Accepts]: Start accepts. Automaton has 87515 states and 126340 transitions. Word has length 442 [2022-11-22 01:35:10,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:35:10,944 INFO L495 AbstractCegarLoop]: Abstraction has 87515 states and 126340 transitions. [2022-11-22 01:35:10,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-11-22 01:35:10,944 INFO L276 IsEmpty]: Start isEmpty. Operand 87515 states and 126340 transitions. [2022-11-22 01:35:10,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2022-11-22 01:35:10,960 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:35:10,960 INFO L195 NwaCegarLoop]: trace histogram [40, 36, 36, 36, 36, 36, 36, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:35:10,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 01:35:10,961 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:35:10,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:35:10,961 INFO L85 PathProgramCache]: Analyzing trace with hash -636089599, now seen corresponding path program 1 times [2022-11-22 01:35:10,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:35:10,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494127698] [2022-11-22 01:35:10,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:35:10,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:35:11,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:35:12,383 INFO L134 CoverageAnalysis]: Checked inductivity of 5393 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 5387 trivial. 0 not checked. [2022-11-22 01:35:12,384 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:35:12,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494127698] [2022-11-22 01:35:12,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494127698] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:35:12,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:35:12,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:35:12,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025246594] [2022-11-22 01:35:12,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:35:12,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:35:12,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:35:12,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:35:12,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:35:12,387 INFO L87 Difference]: Start difference. First operand 87515 states and 126340 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-11-22 01:35:15,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:35:23,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:35:23,175 INFO L93 Difference]: Finished difference Result 87527 states and 126348 transitions. [2022-11-22 01:35:23,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:35:23,176 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 448 [2022-11-22 01:35:23,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:35:23,546 INFO L225 Difference]: With dead ends: 87527 [2022-11-22 01:35:23,546 INFO L226 Difference]: Without dead ends: 87525 [2022-11-22 01:35:23,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:35:23,586 INFO L413 NwaCegarLoop]: 3568 mSDtfsCounter, 2843 mSDsluCounter, 9526 mSDsCounter, 0 mSdLazyCounter, 2117 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2850 SdHoareTripleChecker+Valid, 13094 SdHoareTripleChecker+Invalid, 2119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2117 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:35:23,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2850 Valid, 13094 Invalid, 2119 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2117 Invalid, 1 Unknown, 0 Unchecked, 7.6s Time] [2022-11-22 01:35:23,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87525 states. [2022-11-22 01:35:27,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87525 to 87519. [2022-11-22 01:35:27,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87519 states, 54028 states have (on average 1.30280595246909) internal successors, (70388), 54373 states have internal predecessors, (70388), 27952 states have call successors, (27952), 5539 states have call predecessors, (27952), 5536 states have return successors, (28003), 27656 states have call predecessors, (28003), 27940 states have call successors, (28003) [2022-11-22 01:35:27,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87519 states to 87519 states and 126343 transitions. [2022-11-22 01:35:27,976 INFO L78 Accepts]: Start accepts. Automaton has 87519 states and 126343 transitions. Word has length 448 [2022-11-22 01:35:27,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:35:27,977 INFO L495 AbstractCegarLoop]: Abstraction has 87519 states and 126343 transitions. [2022-11-22 01:35:27,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-11-22 01:35:27,977 INFO L276 IsEmpty]: Start isEmpty. Operand 87519 states and 126343 transitions. [2022-11-22 01:35:27,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2022-11-22 01:35:27,993 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:35:27,994 INFO L195 NwaCegarLoop]: trace histogram [40, 36, 36, 36, 36, 36, 36, 5, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:35:27,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 01:35:27,994 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:35:27,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:35:27,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1070614329, now seen corresponding path program 1 times [2022-11-22 01:35:27,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:35:27,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284711804] [2022-11-22 01:35:27,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:35:27,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:35:28,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:35:29,365 INFO L134 CoverageAnalysis]: Checked inductivity of 5405 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 5397 trivial. 0 not checked. [2022-11-22 01:35:29,366 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:35:29,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284711804] [2022-11-22 01:35:29,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284711804] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:35:29,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:35:29,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:35:29,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453922186] [2022-11-22 01:35:29,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:35:29,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:35:29,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:35:29,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:35:29,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:35:29,369 INFO L87 Difference]: Start difference. First operand 87519 states and 126343 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-11-22 01:35:32,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []