./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618d99dd-cf23-4f73-af60-183ec4eac95a/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618d99dd-cf23-4f73-af60-183ec4eac95a/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618d99dd-cf23-4f73-af60-183ec4eac95a/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618d99dd-cf23-4f73-af60-183ec4eac95a/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618d99dd-cf23-4f73-af60-183ec4eac95a/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618d99dd-cf23-4f73-af60-183ec4eac95a/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5dfd7cb83fe5e8f1a1c790b3fb965075f4c8177484030f9001ac667825217333 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:40:03,722 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:40:03,724 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:40:03,752 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:40:03,753 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:40:03,754 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:40:03,756 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:40:03,757 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:40:03,759 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:40:03,760 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:40:03,761 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:40:03,763 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:40:03,763 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:40:03,764 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:40:03,765 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:40:03,767 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:40:03,767 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:40:03,773 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:40:03,775 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:40:03,780 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:40:03,784 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:40:03,789 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:40:03,790 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:40:03,791 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:40:03,795 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:40:03,801 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:40:03,801 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:40:03,802 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:40:03,803 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:40:03,804 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:40:03,805 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:40:03,806 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:40:03,807 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:40:03,809 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:40:03,810 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:40:03,811 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:40:03,812 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:40:03,812 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:40:03,812 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:40:03,813 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:40:03,814 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:40:03,815 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618d99dd-cf23-4f73-af60-183ec4eac95a/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 02:40:03,867 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:40:03,869 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:40:03,869 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:40:03,870 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:40:03,870 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:40:03,871 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:40:03,871 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:40:03,871 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:40:03,871 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:40:03,872 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:40:03,873 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:40:03,873 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:40:03,873 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:40:03,873 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:40:03,874 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:40:03,874 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:40:03,874 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:40:03,874 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:40:03,875 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:40:03,875 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:40:03,875 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:40:03,876 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:40:03,876 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:40:03,876 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:40:03,876 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:40:03,876 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:40:03,877 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:40:03,877 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:40:03,877 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:40:03,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:40:03,878 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:40:03,878 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:40:03,878 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:40:03,879 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:40:03,879 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:40:03,879 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:40:03,879 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:40:03,879 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:40:03,880 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_618d99dd-cf23-4f73-af60-183ec4eac95a/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618d99dd-cf23-4f73-af60-183ec4eac95a/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5dfd7cb83fe5e8f1a1c790b3fb965075f4c8177484030f9001ac667825217333 [2022-11-03 02:40:04,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:40:04,141 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:40:04,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:40:04,145 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:40:04,146 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:40:04,147 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618d99dd-cf23-4f73-af60-183ec4eac95a/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i [2022-11-03 02:40:04,237 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618d99dd-cf23-4f73-af60-183ec4eac95a/bin/utaipan-7li7fVZpFI/data/fc9bb119f/ac366ab6a9734d7aba6b22b7e7f94d04/FLAG4543eff5f [2022-11-03 02:40:05,358 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:40:05,359 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618d99dd-cf23-4f73-af60-183ec4eac95a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i [2022-11-03 02:40:05,435 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618d99dd-cf23-4f73-af60-183ec4eac95a/bin/utaipan-7li7fVZpFI/data/fc9bb119f/ac366ab6a9734d7aba6b22b7e7f94d04/FLAG4543eff5f [2022-11-03 02:40:05,633 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618d99dd-cf23-4f73-af60-183ec4eac95a/bin/utaipan-7li7fVZpFI/data/fc9bb119f/ac366ab6a9734d7aba6b22b7e7f94d04 [2022-11-03 02:40:05,636 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:40:05,637 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:40:05,638 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:40:05,639 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:40:05,642 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:40:05,643 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:40:05" (1/1) ... [2022-11-03 02:40:05,644 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d00e256 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:05, skipping insertion in model container [2022-11-03 02:40:05,644 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:40:05" (1/1) ... [2022-11-03 02:40:05,651 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:40:05,892 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:40:11,798 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618d99dd-cf23-4f73-af60-183ec4eac95a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i[622320,622333] [2022-11-03 02:40:11,802 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618d99dd-cf23-4f73-af60-183ec4eac95a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i[622489,622502] [2022-11-03 02:40:11,802 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618d99dd-cf23-4f73-af60-183ec4eac95a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i[622656,622669] [2022-11-03 02:40:11,803 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618d99dd-cf23-4f73-af60-183ec4eac95a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i[622824,622837] [2022-11-03 02:40:11,833 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:40:11,960 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:40:12,999 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618d99dd-cf23-4f73-af60-183ec4eac95a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i[622320,622333] [2022-11-03 02:40:12,999 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618d99dd-cf23-4f73-af60-183ec4eac95a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i[622489,622502] [2022-11-03 02:40:13,000 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618d99dd-cf23-4f73-af60-183ec4eac95a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i[622656,622669] [2022-11-03 02:40:13,000 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618d99dd-cf23-4f73-af60-183ec4eac95a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i[622824,622837] [2022-11-03 02:40:13,006 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:40:13,287 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:40:13,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:13 WrapperNode [2022-11-03 02:40:13,288 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:40:13,289 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:40:13,289 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:40:13,289 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:40:13,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:13" (1/1) ... [2022-11-03 02:40:13,488 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:13" (1/1) ... [2022-11-03 02:40:14,056 INFO L138 Inliner]: procedures = 616, calls = 8909, calls flagged for inlining = 315, calls inlined = 243, statements flattened = 13493 [2022-11-03 02:40:14,058 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:40:14,059 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:40:14,059 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:40:14,060 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:40:14,086 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:13" (1/1) ... [2022-11-03 02:40:14,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:13" (1/1) ... [2022-11-03 02:40:14,198 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:13" (1/1) ... [2022-11-03 02:40:14,198 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:13" (1/1) ... [2022-11-03 02:40:14,668 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:13" (1/1) ... [2022-11-03 02:40:14,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:13" (1/1) ... [2022-11-03 02:40:14,761 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:13" (1/1) ... [2022-11-03 02:40:14,808 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:13" (1/1) ... [2022-11-03 02:40:14,884 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:40:14,886 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:40:14,886 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:40:14,886 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:40:14,887 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:13" (1/1) ... [2022-11-03 02:40:14,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:40:14,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618d99dd-cf23-4f73-af60-183ec4eac95a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:40:14,918 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618d99dd-cf23-4f73-af60-183ec4eac95a/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:40:14,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618d99dd-cf23-4f73-af60-183ec4eac95a/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:40:14,964 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-03 02:40:14,964 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-03 02:40:14,964 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-11-03 02:40:14,964 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-11-03 02:40:14,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 02:40:14,965 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 02:40:14,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 02:40:14,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 02:40:14,965 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_v4l2_read [2022-11-03 02:40:14,965 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_v4l2_read [2022-11-03 02:40:14,965 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_v4l2_release [2022-11-03 02:40:14,965 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_v4l2_release [2022-11-03 02:40:14,966 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_find_control [2022-11-03 02:40:14,966 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_find_control [2022-11-03 02:40:14,966 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2022-11-03 02:40:14,966 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2022-11-03 02:40:14,966 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_ctrl_add_mapping [2022-11-03 02:40:14,966 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_ctrl_add_mapping [2022-11-03 02:40:14,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-03 02:40:14,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-03 02:40:14,967 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_buffer_finish [2022-11-03 02:40:14,967 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_buffer_finish [2022-11-03 02:40:14,967 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2022-11-03 02:40:14,967 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2022-11-03 02:40:14,967 INFO L130 BoogieDeclarations]: Found specification of procedure __put_user_bad [2022-11-03 02:40:14,968 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_wait_prepare [2022-11-03 02:40:14,968 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_wait_prepare [2022-11-03 02:40:14,968 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_alloc_urb_buffers [2022-11-03 02:40:14,968 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_alloc_urb_buffers [2022-11-03 02:40:14,968 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_video_clock_reset [2022-11-03 02:40:14,968 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_video_clock_reset [2022-11-03 02:40:14,968 INFO L130 BoogieDeclarations]: Found specification of procedure usb_match_one_id [2022-11-03 02:40:14,969 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_match_one_id [2022-11-03 02:40:14,969 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 02:40:14,969 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 02:40:14,969 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-03 02:40:14,969 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get_ts [2022-11-03 02:40:14,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get_ts [2022-11-03 02:40:14,970 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_entity_by_id [2022-11-03 02:40:14,970 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_entity_by_id [2022-11-03 02:40:14,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 02:40:14,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 02:40:14,971 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-11-03 02:40:14,971 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-11-03 02:40:14,972 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-03 02:40:14,972 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-03 02:40:14,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_49 [2022-11-03 02:40:14,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_49 [2022-11-03 02:40:14,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 02:40:14,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 02:40:14,973 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 02:40:14,973 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 02:40:14,973 INFO L130 BoogieDeclarations]: Found specification of procedure video_devdata [2022-11-03 02:40:14,974 INFO L138 BoogieDeclarations]: Found implementation of procedure video_devdata [2022-11-03 02:40:14,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:40:14,974 INFO L130 BoogieDeclarations]: Found specification of procedure __chk_range_not_ok [2022-11-03 02:40:14,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __chk_range_not_ok [2022-11-03 02:40:14,974 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_query_v4l2_ctrl [2022-11-03 02:40:14,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_query_v4l2_ctrl [2022-11-03 02:40:14,974 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_data [2022-11-03 02:40:14,974 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_data [2022-11-03 02:40:14,975 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-03 02:40:14,975 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-03 02:40:14,975 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2022-11-03 02:40:14,975 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2022-11-03 02:40:14,975 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_v4l2_ioctl [2022-11-03 02:40:14,975 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_v4l2_ioctl [2022-11-03 02:40:14,975 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 02:40:14,975 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 02:40:14,976 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_populate_cache [2022-11-03 02:40:14,976 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_populate_cache [2022-11-03 02:40:14,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 02:40:14,977 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_add_info [2022-11-03 02:40:14,977 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_add_info [2022-11-03 02:40:14,977 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-03 02:40:14,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-03 02:40:14,978 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_buffer_done [2022-11-03 02:40:14,978 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_buffer_done [2022-11-03 02:40:14,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 02:40:14,978 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_query_ctrl [2022-11-03 02:40:14,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_query_ctrl [2022-11-03 02:40:14,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 02:40:14,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 02:40:14,979 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_wait_finish [2022-11-03 02:40:14,979 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_wait_finish [2022-11-03 02:40:14,980 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_reset_resume [2022-11-03 02:40:14,980 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_reset_resume [2022-11-03 02:40:14,981 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2022-11-03 02:40:14,981 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2022-11-03 02:40:14,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:40:14,981 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user [2022-11-03 02:40:14,981 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user [2022-11-03 02:40:14,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 02:40:14,981 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 02:40:14,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-03 02:40:14,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-03 02:40:14,982 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-03 02:40:14,982 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-03 02:40:14,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-03 02:40:14,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-03 02:40:14,982 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_scan_chain_forward [2022-11-03 02:40:14,982 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_scan_chain_forward [2022-11-03 02:40:14,983 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove_recursive [2022-11-03 02:40:14,983 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove_recursive [2022-11-03 02:40:14,984 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_commit_video [2022-11-03 02:40:14,986 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_commit_video [2022-11-03 02:40:14,987 INFO L130 BoogieDeclarations]: Found specification of procedure __get_user_bad [2022-11-03 02:40:14,987 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-03 02:40:14,987 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-03 02:40:14,987 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64_rem [2022-11-03 02:40:14,988 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64_rem [2022-11-03 02:40:14,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-03 02:40:14,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-03 02:40:14,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:40:14,994 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2022-11-03 02:40:14,994 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2022-11-03 02:40:14,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-03 02:40:14,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-03 02:40:14,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-03 02:40:14,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-03 02:40:14,995 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_ctrl_get [2022-11-03 02:40:14,995 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_ctrl_get [2022-11-03 02:40:14,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:40:14,995 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_find_endpoint [2022-11-03 02:40:14,995 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_find_endpoint [2022-11-03 02:40:14,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 02:40:14,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 02:40:14,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:40:14,996 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 02:40:14,996 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_endpoint_max_bpi [2022-11-03 02:40:14,996 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_endpoint_max_bpi [2022-11-03 02:40:14,996 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:40:14,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:40:14,996 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_set_video_ctrl [2022-11-03 02:40:14,996 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_set_video_ctrl [2022-11-03 02:40:14,996 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-11-03 02:40:14,997 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-11-03 02:40:14,997 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_delete [2022-11-03 02:40:14,997 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_delete [2022-11-03 02:40:14,997 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_commit_entity [2022-11-03 02:40:14,997 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_commit_entity [2022-11-03 02:40:14,997 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_free_urb_buffers [2022-11-03 02:40:14,997 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_free_urb_buffers [2022-11-03 02:40:14,997 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-03 02:40:14,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-03 02:40:14,998 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_del_event [2022-11-03 02:40:14,998 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_del_event [2022-11-03 02:40:14,998 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user [2022-11-03 02:40:14,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user [2022-11-03 02:40:14,998 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_v4l2_open [2022-11-03 02:40:14,998 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_v4l2_open [2022-11-03 02:40:14,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:40:14,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:40:14,998 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-11-03 02:40:14,998 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-11-03 02:40:14,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 02:40:14,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 02:40:14,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 02:40:14,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 02:40:14,999 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2022-11-03 02:40:14,999 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2022-11-03 02:40:15,000 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_fill_event [2022-11-03 02:40:15,000 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_fill_event [2022-11-03 02:40:15,000 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2022-11-03 02:40:15,000 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2022-11-03 02:40:15,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-03 02:40:15,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-03 02:40:15,000 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_get_plane_payload [2022-11-03 02:40:15,000 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_get_plane_payload [2022-11-03 02:40:15,001 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2022-11-03 02:40:15,001 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2022-11-03 02:40:15,001 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-11-03 02:40:15,001 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-11-03 02:40:15,001 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release [2022-11-03 02:40:15,001 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release [2022-11-03 02:40:15,001 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-11-03 02:40:15,001 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-11-03 02:40:15,001 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_debugfs_cleanup [2022-11-03 02:40:15,003 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_debugfs_cleanup [2022-11-03 02:40:15,003 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2022-11-03 02:40:15,003 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2022-11-03 02:40:15,003 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-03 02:40:15,003 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-03 02:40:15,003 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_event_queue_fh [2022-11-03 02:40:15,004 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_event_queue_fh [2022-11-03 02:40:15,004 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_init_video [2022-11-03 02:40:15,004 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_init_video [2022-11-03 02:40:15,004 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_status_start [2022-11-03 02:40:15,004 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_status_start [2022-11-03 02:40:15,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 02:40:15,004 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 02:40:15,004 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_intf [2022-11-03 02:40:15,004 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_intf [2022-11-03 02:40:15,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_5_4 [2022-11-03 02:40:15,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_5_4 [2022-11-03 02:40:15,005 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR_OR_NULL [2022-11-03 02:40:15,005 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR_OR_NULL [2022-11-03 02:40:15,005 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_find_control [2022-11-03 02:40:15,005 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_find_control [2022-11-03 02:40:15,005 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_video_clock_cleanup [2022-11-03 02:40:15,005 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_video_clock_cleanup [2022-11-03 02:40:15,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2022-11-03 02:40:15,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2022-11-03 02:40:15,006 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2022-11-03 02:40:15,006 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2022-11-03 02:40:15,006 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64 [2022-11-03 02:40:15,006 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64 [2022-11-03 02:40:15,006 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_buffer_prepare [2022-11-03 02:40:15,006 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_buffer_prepare [2022-11-03 02:40:15,006 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-03 02:40:15,006 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-03 02:40:15,006 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_set_zoom [2022-11-03 02:40:15,007 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_set_zoom [2022-11-03 02:40:15,007 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_test_bit [2022-11-03 02:40:15,007 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_test_bit [2022-11-03 02:40:15,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:40:15,007 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 02:40:15,007 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 02:40:15,007 INFO L130 BoogieDeclarations]: Found specification of procedure copy_in_user [2022-11-03 02:40:15,007 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_in_user [2022-11-03 02:40:15,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:40:15,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_uvc_cleanup_10_2 [2022-11-03 02:40:15,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_uvc_cleanup_10_2 [2022-11-03 02:40:15,008 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_status_stop [2022-11-03 02:40:15,008 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_status_stop [2022-11-03 02:40:15,008 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_alloc_entity [2022-11-03 02:40:15,008 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_alloc_entity [2022-11-03 02:40:15,008 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2022-11-03 02:40:15,008 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2022-11-03 02:40:15,008 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_query_ctrl [2022-11-03 02:40:15,008 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_query_ctrl [2022-11-03 02:40:15,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:40:15,013 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-03 02:40:15,013 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-03 02:40:15,013 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-03 02:40:15,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-03 02:40:15,013 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-03 02:40:15,014 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-03 02:40:15,014 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_dismiss_privileges [2022-11-03 02:40:15,014 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_dismiss_privileges [2022-11-03 02:40:15,014 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-03 02:40:15,015 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-03 02:40:15,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irqlock_of_uvc_video_queue [2022-11-03 02:40:15,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irqlock_of_uvc_video_queue [2022-11-03 02:40:15,016 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-11-03 02:40:15,016 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-11-03 02:40:15,016 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~__u8~0~X~$Pointer$~TO~~__s32~0 [2022-11-03 02:40:15,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~__u8~0~X~$Pointer$~TO~~__s32~0 [2022-11-03 02:40:15,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 02:40:15,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 02:40:15,016 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_video_clock_host_sof [2022-11-03 02:40:15,016 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_video_clock_host_sof [2022-11-03 02:40:15,016 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-11-03 02:40:15,017 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-11-03 02:40:15,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-03 02:40:15,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-03 02:40:15,017 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-03 02:40:15,017 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-03 02:40:15,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_uvc_clock [2022-11-03 02:40:15,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_uvc_clock [2022-11-03 02:40:15,017 INFO L130 BoogieDeclarations]: Found specification of procedure compat_alloc_user_space [2022-11-03 02:40:15,017 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_alloc_user_space [2022-11-03 02:40:15,018 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_plane_size [2022-11-03 02:40:15,018 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_plane_size [2022-11-03 02:40:15,018 INFO L130 BoogieDeclarations]: Found specification of procedure usb_driver_release_interface [2022-11-03 02:40:15,018 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_driver_release_interface [2022-11-03 02:40:15,018 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_print_terms [2022-11-03 02:40:15,018 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_print_terms [2022-11-03 02:40:15,018 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-03 02:40:15,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-03 02:40:15,018 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_has_privileges [2022-11-03 02:40:15,018 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_has_privileges [2022-11-03 02:40:15,018 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_video_enable [2022-11-03 02:40:15,019 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_video_enable [2022-11-03 02:40:15,019 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 02:40:15,019 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 02:40:15,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:40:15,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 02:40:15,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 02:40:15,019 INFO L130 BoogieDeclarations]: Found specification of procedure copy_user_generic [2022-11-03 02:40:15,019 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_user_generic [2022-11-03 02:40:15,019 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_init [2022-11-03 02:40:15,019 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_init [2022-11-03 02:40:15,020 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-03 02:40:15,020 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-03 02:40:15,020 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_entity_match_guid [2022-11-03 02:40:15,020 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_entity_match_guid [2022-11-03 02:40:15,020 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-03 02:40:15,020 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-03 02:40:15,020 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_uninit_video [2022-11-03 02:40:15,020 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_uninit_video [2022-11-03 02:40:15,020 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_debugfs_cleanup_stream [2022-11-03 02:40:15,020 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_debugfs_cleanup_stream [2022-11-03 02:40:15,020 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2022-11-03 02:40:15,021 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2022-11-03 02:40:15,021 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_queue_enable [2022-11-03 02:40:15,021 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_queue_enable [2022-11-03 02:40:15,021 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_get_video_ctrl [2022-11-03 02:40:15,021 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_get_video_ctrl [2022-11-03 02:40:15,021 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit [2022-11-03 02:40:15,021 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit [2022-11-03 02:40:15,021 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-11-03 02:40:15,021 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-11-03 02:40:15,021 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_get_drv_priv [2022-11-03 02:40:15,022 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_get_drv_priv [2022-11-03 02:40:15,022 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2022-11-03 02:40:15,022 INFO L138 BoogieDeclarations]: Found implementation of procedure strcasecmp [2022-11-03 02:40:15,022 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-03 02:40:15,022 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-03 02:40:15,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_49___0 [2022-11-03 02:40:15,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_49___0 [2022-11-03 02:40:15,022 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_buffer_queue [2022-11-03 02:40:15,022 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_buffer_queue [2022-11-03 02:40:15,022 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_resume [2022-11-03 02:40:15,022 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_resume [2022-11-03 02:40:15,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 02:40:15,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 02:40:15,023 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_unregister_video [2022-11-03 02:40:15,023 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_unregister_video [2022-11-03 02:40:15,023 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intf [2022-11-03 02:40:15,023 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intf [2022-11-03 02:40:15,023 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_resume [2022-11-03 02:40:15,023 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_resume [2022-11-03 02:40:15,023 INFO L130 BoogieDeclarations]: Found specification of procedure kmemdup [2022-11-03 02:40:15,023 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemdup [2022-11-03 02:40:15,023 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_cleanup [2022-11-03 02:40:15,024 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_cleanup [2022-11-03 02:40:15,024 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_queue_streaming [2022-11-03 02:40:15,024 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_queue_streaming [2022-11-03 02:40:15,024 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_disconnect [2022-11-03 02:40:15,024 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_disconnect [2022-11-03 02:40:15,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:40:15,024 INFO L130 BoogieDeclarations]: Found specification of procedure usb_string [2022-11-03 02:40:15,024 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_string [2022-11-03 02:40:15,024 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_get_zoom [2022-11-03 02:40:15,024 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_get_zoom [2022-11-03 02:40:15,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-03 02:40:15,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-03 02:40:16,419 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:40:16,423 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:40:16,690 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 02:40:17,098 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11812: SUMMARY for call __copy_to_user_nocheck_#t~ret1079#1 := copy_user_generic(__copy_to_user_nocheck_~dst#1.base, __copy_to_user_nocheck_~dst#1.offset, __copy_to_user_nocheck_~src#1.base, __copy_to_user_nocheck_~src#1.offset, __copy_to_user_nocheck_~size#1); srcloc: null [2022-11-03 02:40:17,099 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11849: assume 0 != __copy_to_user_nocheck_~tmp___1~14#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2022-11-03 02:40:17,099 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11849: assume !(0 != __copy_to_user_nocheck_~tmp___1~14#1);__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2022-11-03 02:40:17,099 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11804: assume 10 == __copy_to_user_nocheck_~size#1 % 4294967296; [2022-11-03 02:40:17,099 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11804: assume !(10 == __copy_to_user_nocheck_~size#1 % 4294967296); [2022-11-03 02:40:17,099 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11808: assume 16 == __copy_to_user_nocheck_~size#1 % 4294967296; [2022-11-03 02:40:17,099 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11808: assume !(16 == __copy_to_user_nocheck_~size#1 % 4294967296); [2022-11-03 02:40:17,099 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11796: assume 4 == __copy_to_user_nocheck_~size#1 % 4294967296; [2022-11-03 02:40:17,100 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11796: assume !(4 == __copy_to_user_nocheck_~size#1 % 4294967296); [2022-11-03 02:40:17,100 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11800: assume 8 == __copy_to_user_nocheck_~size#1 % 4294967296; [2022-11-03 02:40:17,100 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11800: assume !(8 == __copy_to_user_nocheck_~size#1 % 4294967296); [2022-11-03 02:40:17,100 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11833: assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret1077#1 && __copy_to_user_nocheck_#t~ret1077#1 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___0~24#1 := __copy_to_user_nocheck_#t~ret1077#1;havoc __copy_to_user_nocheck_#t~ret1077#1; [2022-11-03 02:40:17,100 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11792: assume 2 == __copy_to_user_nocheck_~size#1 % 4294967296; [2022-11-03 02:40:17,100 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11792: assume !(2 == __copy_to_user_nocheck_~size#1 % 4294967296); [2022-11-03 02:40:17,100 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11805: SUMMARY for call __copy_to_user_nocheck_#t~ret1077#1 := ldv__builtin_expect((if 0 != __copy_to_user_nocheck_~ret~18#1 then 1 else 0), 0); srcloc: null [2022-11-03 02:40:17,100 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11809: SUMMARY for call __copy_to_user_nocheck_#t~ret1078#1 := ldv__builtin_expect((if 0 != __copy_to_user_nocheck_~ret~18#1 then 1 else 0), 0); srcloc: null [2022-11-03 02:40:17,101 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11797: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2022-11-03 02:40:17,101 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11859: __copy_to_user_nocheck_~tmp___2~11#1 := __copy_to_user_nocheck_#t~ret1079#1;havoc __copy_to_user_nocheck_#t~ret1079#1;__copy_to_user_nocheck_#res#1 := (if __copy_to_user_nocheck_~tmp___2~11#1 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_to_user_nocheck_~tmp___2~11#1 % 18446744073709551616 % 4294967296 else __copy_to_user_nocheck_~tmp___2~11#1 % 18446744073709551616 % 4294967296 - 4294967296); [2022-11-03 02:40:17,101 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11801: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2022-11-03 02:40:17,101 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11789: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2022-11-03 02:40:17,101 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11793: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2022-11-03 02:40:17,101 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume 1 == __copy_to_user_nocheck_~size#1 % 4294967296; [2022-11-03 02:40:17,101 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !(1 == __copy_to_user_nocheck_~size#1 % 4294967296); [2022-11-03 02:40:17,101 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11847: assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret1078#1 && __copy_to_user_nocheck_#t~ret1078#1 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___1~14#1 := __copy_to_user_nocheck_#t~ret1078#1;havoc __copy_to_user_nocheck_#t~ret1078#1; [2022-11-03 02:40:17,102 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11835: assume 0 != __copy_to_user_nocheck_~tmp___0~24#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2022-11-03 02:40:17,102 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11835: assume !(0 != __copy_to_user_nocheck_~tmp___0~24#1);__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2022-11-03 02:40:20,397 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11700: SUMMARY for call __copy_from_user_nocheck_#t~ret1073#1 := ldv__builtin_expect((if 0 != __copy_from_user_nocheck_~ret~17#1 then 1 else 0), 0); srcloc: null [2022-11-03 02:40:20,397 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11692: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2022-11-03 02:40:20,397 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11696: SUMMARY for call __copy_from_user_nocheck_#t~ret1072#1 := ldv__builtin_expect((if 0 != __copy_from_user_nocheck_~ret~17#1 then 1 else 0), 0); srcloc: null [2022-11-03 02:40:20,397 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11729: assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret1072#1 && __copy_from_user_nocheck_#t~ret1072#1 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___0~23#1 := __copy_from_user_nocheck_#t~ret1072#1;havoc __copy_from_user_nocheck_#t~ret1072#1; [2022-11-03 02:40:20,397 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11684: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2022-11-03 02:40:20,397 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11746: assume 0 != __copy_from_user_nocheck_~tmp___1~13#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2022-11-03 02:40:20,397 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11746: assume !(0 != __copy_from_user_nocheck_~tmp___1~13#1);__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2022-11-03 02:40:20,398 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11688: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2022-11-03 02:40:20,398 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11680: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2022-11-03 02:40:20,398 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11731: assume 0 != __copy_from_user_nocheck_~tmp___0~23#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2022-11-03 02:40:20,398 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11731: assume !(0 != __copy_from_user_nocheck_~tmp___0~23#1);__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2022-11-03 02:40:20,398 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11756: __copy_from_user_nocheck_~tmp___2~10#1 := __copy_from_user_nocheck_#t~ret1074#1;havoc __copy_from_user_nocheck_#t~ret1074#1;__copy_from_user_nocheck_#res#1 := (if __copy_from_user_nocheck_~tmp___2~10#1 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_from_user_nocheck_~tmp___2~10#1 % 18446744073709551616 % 4294967296 else __copy_from_user_nocheck_~tmp___2~10#1 % 18446744073709551616 % 4294967296 - 4294967296); [2022-11-03 02:40:20,398 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume 1 == __copy_from_user_nocheck_~size#1 % 4294967296; [2022-11-03 02:40:20,398 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !(1 == __copy_from_user_nocheck_~size#1 % 4294967296); [2022-11-03 02:40:20,398 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11744: assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret1073#1 && __copy_from_user_nocheck_#t~ret1073#1 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___1~13#1 := __copy_from_user_nocheck_#t~ret1073#1;havoc __copy_from_user_nocheck_#t~ret1073#1; [2022-11-03 02:40:20,399 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11699: assume 16 == __copy_from_user_nocheck_~size#1 % 4294967296; [2022-11-03 02:40:20,399 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11699: assume !(16 == __copy_from_user_nocheck_~size#1 % 4294967296); [2022-11-03 02:40:20,399 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11703: SUMMARY for call __copy_from_user_nocheck_#t~ret1074#1 := copy_user_generic(__copy_from_user_nocheck_~dst#1.base, __copy_from_user_nocheck_~dst#1.offset, __copy_from_user_nocheck_~src#1.base, __copy_from_user_nocheck_~src#1.offset, __copy_from_user_nocheck_~size#1); srcloc: null [2022-11-03 02:40:20,399 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11691: assume 8 == __copy_from_user_nocheck_~size#1 % 4294967296; [2022-11-03 02:40:20,399 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11691: assume !(8 == __copy_from_user_nocheck_~size#1 % 4294967296); [2022-11-03 02:40:20,399 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11695: assume 10 == __copy_from_user_nocheck_~size#1 % 4294967296; [2022-11-03 02:40:20,399 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11695: assume !(10 == __copy_from_user_nocheck_~size#1 % 4294967296); [2022-11-03 02:40:20,399 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11683: assume 2 == __copy_from_user_nocheck_~size#1 % 4294967296; [2022-11-03 02:40:20,399 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11683: assume !(2 == __copy_from_user_nocheck_~size#1 % 4294967296); [2022-11-03 02:40:20,399 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11687: assume 4 == __copy_from_user_nocheck_~size#1 % 4294967296; [2022-11-03 02:40:20,400 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11687: assume !(4 == __copy_from_user_nocheck_~size#1 % 4294967296); [2022-11-03 02:43:27,916 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-03 02:43:28,027 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:43:31,828 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:43:31,828 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-03 02:43:31,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:43:31 BoogieIcfgContainer [2022-11-03 02:43:31,834 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:43:31,836 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:43:31,836 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:43:31,844 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:43:31,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:40:05" (1/3) ... [2022-11-03 02:43:31,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6017b4c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:43:31, skipping insertion in model container [2022-11-03 02:43:31,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:13" (2/3) ... [2022-11-03 02:43:31,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6017b4c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:43:31, skipping insertion in model container [2022-11-03 02:43:31,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:43:31" (3/3) ... [2022-11-03 02:43:31,847 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i [2022-11-03 02:43:31,867 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:43:31,867 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-03 02:43:31,955 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:43:31,962 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;@20269e25, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:43:31,962 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-03 02:43:31,973 INFO L276 IsEmpty]: Start isEmpty. Operand has 2328 states, 1497 states have (on average 1.3687374749498997) internal successors, (2049), 1517 states have internal predecessors, (2049), 670 states have call successors, (670), 159 states have call predecessors, (670), 158 states have return successors, (661), 655 states have call predecessors, (661), 661 states have call successors, (661) [2022-11-03 02:43:32,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2022-11-03 02:43:32,021 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:43:32,022 INFO L195 NwaCegarLoop]: trace histogram [32, 31, 31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:43:32,023 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 02:43:32,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:43:32,031 INFO L85 PathProgramCache]: Analyzing trace with hash -57173400, now seen corresponding path program 1 times [2022-11-03 02:43:32,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:43:32,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878572210] [2022-11-03 02:43:32,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:43:32,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:43:32,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:43:34,872 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3782 trivial. 0 not checked. [2022-11-03 02:43:34,875 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:43:34,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878572210] [2022-11-03 02:43:34,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878572210] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:43:34,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:43:34,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:43:34,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521003271] [2022-11-03 02:43:34,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:43:34,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:43:34,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:43:34,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:43:34,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:43:34,937 INFO L87 Difference]: Start difference. First operand has 2328 states, 1497 states have (on average 1.3687374749498997) internal successors, (2049), 1517 states have internal predecessors, (2049), 670 states have call successors, (670), 159 states have call predecessors, (670), 158 states have return successors, (661), 655 states have call predecessors, (661), 661 states have call successors, (661) Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-11-03 02:43:37,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:43:44,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:43:45,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:43:53,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:43:58,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:44:06,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:44:06,261 INFO L93 Difference]: Finished difference Result 8795 states and 12894 transitions. [2022-11-03 02:44:06,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:44:06,267 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 335 [2022-11-03 02:44:06,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:44:06,326 INFO L225 Difference]: With dead ends: 8795 [2022-11-03 02:44:06,326 INFO L226 Difference]: Without dead ends: 6501 [2022-11-03 02:44:06,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:44:06,357 INFO L413 NwaCegarLoop]: 3742 mSDtfsCounter, 8724 mSDsluCounter, 6009 mSDsCounter, 0 mSdLazyCounter, 4231 mSolverCounterSat, 1519 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9037 SdHoareTripleChecker+Valid, 8528 SdHoareTripleChecker+Invalid, 5753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1519 IncrementalHoareTripleChecker+Valid, 4231 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:44:06,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9037 Valid, 8528 Invalid, 5753 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1519 Valid, 4231 Invalid, 3 Unknown, 0 Unchecked, 30.4s Time] [2022-11-03 02:44:06,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6501 states. [2022-11-03 02:44:06,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6501 to 6449. [2022-11-03 02:44:06,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6449 states, 4186 states have (on average 1.370043000477783) internal successors, (5735), 4250 states have internal predecessors, (5735), 1811 states have call successors, (1811), 450 states have call predecessors, (1811), 449 states have return successors, (1809), 1781 states have call predecessors, (1809), 1807 states have call successors, (1809) [2022-11-03 02:44:06,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6449 states to 6449 states and 9355 transitions. [2022-11-03 02:44:06,891 INFO L78 Accepts]: Start accepts. Automaton has 6449 states and 9355 transitions. Word has length 335 [2022-11-03 02:44:06,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:44:06,898 INFO L495 AbstractCegarLoop]: Abstraction has 6449 states and 9355 transitions. [2022-11-03 02:44:06,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-11-03 02:44:06,898 INFO L276 IsEmpty]: Start isEmpty. Operand 6449 states and 9355 transitions. [2022-11-03 02:44:06,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2022-11-03 02:44:06,912 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:44:06,912 INFO L195 NwaCegarLoop]: trace histogram [32, 31, 31, 31, 31, 31, 31, 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] [2022-11-03 02:44:06,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:44:06,913 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 02:44:06,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:44:06,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1215945735, now seen corresponding path program 1 times [2022-11-03 02:44:06,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:44:06,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759602213] [2022-11-03 02:44:06,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:44:06,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:44:07,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:44:08,403 INFO L134 CoverageAnalysis]: Checked inductivity of 3785 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3785 trivial. 0 not checked. [2022-11-03 02:44:08,403 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:44:08,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759602213] [2022-11-03 02:44:08,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759602213] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:44:08,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:44:08,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:44:08,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972185003] [2022-11-03 02:44:08,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:44:08,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:44:08,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:44:08,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:44:08,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:44:08,409 INFO L87 Difference]: Start difference. First operand 6449 states and 9355 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-03 02:44:10,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:44:12,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:44:17,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:44:19,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:44:21,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:44:23,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:44:27,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:44:27,512 INFO L93 Difference]: Finished difference Result 14956 states and 21644 transitions. [2022-11-03 02:44:27,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:44:27,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 339 [2022-11-03 02:44:27,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:44:27,563 INFO L225 Difference]: With dead ends: 14956 [2022-11-03 02:44:27,563 INFO L226 Difference]: Without dead ends: 8570 [2022-11-03 02:44:27,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:44:27,586 INFO L413 NwaCegarLoop]: 3462 mSDtfsCounter, 2939 mSDsluCounter, 3259 mSDsCounter, 0 mSdLazyCounter, 1112 mSolverCounterSat, 17 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2939 SdHoareTripleChecker+Valid, 6215 SdHoareTripleChecker+Invalid, 1133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1112 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:44:27,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2939 Valid, 6215 Invalid, 1133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1112 Invalid, 4 Unknown, 0 Unchecked, 18.6s Time] [2022-11-03 02:44:27,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8570 states. [2022-11-03 02:44:28,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8570 to 8564. [2022-11-03 02:44:28,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8564 states, 5565 states have (on average 1.3667565139263254) internal successors, (7606), 5648 states have internal predecessors, (7606), 2379 states have call successors, (2379), 618 states have call predecessors, (2379), 617 states have return successors, (2377), 2343 states have call predecessors, (2377), 2375 states have call successors, (2377) [2022-11-03 02:44:28,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8564 states to 8564 states and 12362 transitions. [2022-11-03 02:44:28,144 INFO L78 Accepts]: Start accepts. Automaton has 8564 states and 12362 transitions. Word has length 339 [2022-11-03 02:44:28,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:44:28,151 INFO L495 AbstractCegarLoop]: Abstraction has 8564 states and 12362 transitions. [2022-11-03 02:44:28,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-03 02:44:28,152 INFO L276 IsEmpty]: Start isEmpty. Operand 8564 states and 12362 transitions. [2022-11-03 02:44:28,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2022-11-03 02:44:28,163 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:44:28,163 INFO L195 NwaCegarLoop]: trace histogram [32, 31, 31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:44:28,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:44:28,164 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 02:44:28,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:44:28,165 INFO L85 PathProgramCache]: Analyzing trace with hash 152797830, now seen corresponding path program 1 times [2022-11-03 02:44:28,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:44:28,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125296810] [2022-11-03 02:44:28,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:44:28,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:44:28,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:44:29,620 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3782 trivial. 0 not checked. [2022-11-03 02:44:29,621 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:44:29,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125296810] [2022-11-03 02:44:29,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125296810] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:44:29,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:44:29,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:44:29,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789369595] [2022-11-03 02:44:29,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:44:29,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:44:29,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:44:29,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:44:29,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:44:29,625 INFO L87 Difference]: Start difference. First operand 8564 states and 12362 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-11-03 02:44:31,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:44:36,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:44:41,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:44:46,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:44:48,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:44:48,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:44:48,929 INFO L93 Difference]: Finished difference Result 21593 states and 30953 transitions. [2022-11-03 02:44:48,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:44:48,930 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 345 [2022-11-03 02:44:48,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:44:49,007 INFO L225 Difference]: With dead ends: 21593 [2022-11-03 02:44:49,007 INFO L226 Difference]: Without dead ends: 13092 [2022-11-03 02:44:49,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:44:49,040 INFO L413 NwaCegarLoop]: 3237 mSDtfsCounter, 1736 mSDsluCounter, 3303 mSDsCounter, 0 mSdLazyCounter, 1094 mSolverCounterSat, 16 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1737 SdHoareTripleChecker+Valid, 6029 SdHoareTripleChecker+Invalid, 1115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1094 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:44:49,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1737 Valid, 6029 Invalid, 1115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1094 Invalid, 5 Unknown, 0 Unchecked, 18.8s Time] [2022-11-03 02:44:49,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13092 states. [2022-11-03 02:44:49,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13092 to 13062. [2022-11-03 02:44:49,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13062 states, 8387 states have (on average 1.3495886490997973) internal successors, (11319), 8510 states have internal predecessors, (11319), 3644 states have call successors, (3644), 1029 states have call predecessors, (3644), 1028 states have return successors, (3643), 3586 states have call predecessors, (3643), 3640 states have call successors, (3643) [2022-11-03 02:44:49,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13062 states to 13062 states and 18606 transitions. [2022-11-03 02:44:49,721 INFO L78 Accepts]: Start accepts. Automaton has 13062 states and 18606 transitions. Word has length 345 [2022-11-03 02:44:49,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:44:49,723 INFO L495 AbstractCegarLoop]: Abstraction has 13062 states and 18606 transitions. [2022-11-03 02:44:49,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-11-03 02:44:49,723 INFO L276 IsEmpty]: Start isEmpty. Operand 13062 states and 18606 transitions. [2022-11-03 02:44:49,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2022-11-03 02:44:49,733 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:44:49,733 INFO L195 NwaCegarLoop]: trace histogram [32, 31, 31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:44:49,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:44:49,734 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 02:44:49,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:44:49,735 INFO L85 PathProgramCache]: Analyzing trace with hash 414727762, now seen corresponding path program 1 times [2022-11-03 02:44:49,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:44:49,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738013776] [2022-11-03 02:44:49,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:44:49,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:44:50,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:44:50,938 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3782 trivial. 0 not checked. [2022-11-03 02:44:50,939 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:44:50,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738013776] [2022-11-03 02:44:50,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738013776] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:44:50,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:44:50,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:44:50,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503595913] [2022-11-03 02:44:50,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:44:50,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:44:50,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:44:50,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:44:50,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:44:50,947 INFO L87 Difference]: Start difference. First operand 13062 states and 18606 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2022-11-03 02:44:53,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:44:57,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:44:59,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:45:03,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:45:07,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:45:07,462 INFO L93 Difference]: Finished difference Result 32956 states and 46983 transitions. [2022-11-03 02:45:07,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:45:07,464 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 363 [2022-11-03 02:45:07,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:45:07,553 INFO L225 Difference]: With dead ends: 32956 [2022-11-03 02:45:07,554 INFO L226 Difference]: Without dead ends: 19957 [2022-11-03 02:45:07,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:45:07,590 INFO L413 NwaCegarLoop]: 3453 mSDtfsCounter, 2790 mSDsluCounter, 3293 mSDsCounter, 0 mSdLazyCounter, 1101 mSolverCounterSat, 13 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2792 SdHoareTripleChecker+Valid, 6243 SdHoareTripleChecker+Invalid, 1117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1101 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:45:07,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2792 Valid, 6243 Invalid, 1117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1101 Invalid, 3 Unknown, 0 Unchecked, 15.8s Time] [2022-11-03 02:45:07,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19957 states. [2022-11-03 02:45:08,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19957 to 19921. [2022-11-03 02:45:08,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19921 states, 12900 states have (on average 1.3533333333333333) internal successors, (17458), 13123 states have internal predecessors, (17458), 5444 states have call successors, (5444), 1575 states have call predecessors, (5444), 1574 states have return successors, (5448), 5325 states have call predecessors, (5448), 5440 states have call successors, (5448) [2022-11-03 02:45:08,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19921 states to 19921 states and 28350 transitions. [2022-11-03 02:45:08,696 INFO L78 Accepts]: Start accepts. Automaton has 19921 states and 28350 transitions. Word has length 363 [2022-11-03 02:45:08,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:45:08,697 INFO L495 AbstractCegarLoop]: Abstraction has 19921 states and 28350 transitions. [2022-11-03 02:45:08,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2022-11-03 02:45:08,697 INFO L276 IsEmpty]: Start isEmpty. Operand 19921 states and 28350 transitions. [2022-11-03 02:45:08,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2022-11-03 02:45:08,707 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:45:08,707 INFO L195 NwaCegarLoop]: trace histogram [33, 31, 31, 31, 31, 31, 31, 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] [2022-11-03 02:45:08,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:45:08,708 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 02:45:08,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:45:08,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1459529783, now seen corresponding path program 1 times [2022-11-03 02:45:08,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:45:08,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514754741] [2022-11-03 02:45:08,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:45:08,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:45:09,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:45:09,975 INFO L134 CoverageAnalysis]: Checked inductivity of 3855 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 3846 trivial. 0 not checked. [2022-11-03 02:45:09,975 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:45:09,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514754741] [2022-11-03 02:45:09,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514754741] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:45:09,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:45:09,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:45:09,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696709152] [2022-11-03 02:45:09,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:45:09,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:45:09,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:45:09,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:45:09,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:45:09,978 INFO L87 Difference]: Start difference. First operand 19921 states and 28350 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-11-03 02:45:12,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:45:17,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:45:21,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:45:23,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:45:27,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:45:27,285 INFO L93 Difference]: Finished difference Result 43373 states and 61500 transitions. [2022-11-03 02:45:27,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:45:27,286 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 365 [2022-11-03 02:45:27,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:45:27,402 INFO L225 Difference]: With dead ends: 43373 [2022-11-03 02:45:27,402 INFO L226 Difference]: Without dead ends: 23515 [2022-11-03 02:45:27,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:45:27,463 INFO L413 NwaCegarLoop]: 3847 mSDtfsCounter, 1746 mSDsluCounter, 3327 mSDsCounter, 0 mSdLazyCounter, 1229 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1746 SdHoareTripleChecker+Valid, 6655 SdHoareTripleChecker+Invalid, 1235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1229 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:45:27,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1746 Valid, 6655 Invalid, 1235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1229 Invalid, 3 Unknown, 0 Unchecked, 16.4s Time] [2022-11-03 02:45:27,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23515 states. [2022-11-03 02:45:28,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23515 to 23483. [2022-11-03 02:45:28,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23483 states, 15096 states have (on average 1.3438659247482776) internal successors, (20287), 15357 states have internal predecessors, (20287), 6450 states have call successors, (6450), 1940 states have call predecessors, (6450), 1934 states have return successors, (6456), 6293 states have call predecessors, (6456), 6446 states have call successors, (6456) [2022-11-03 02:45:28,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23483 states to 23483 states and 33193 transitions. [2022-11-03 02:45:28,790 INFO L78 Accepts]: Start accepts. Automaton has 23483 states and 33193 transitions. Word has length 365 [2022-11-03 02:45:28,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:45:28,792 INFO L495 AbstractCegarLoop]: Abstraction has 23483 states and 33193 transitions. [2022-11-03 02:45:28,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-11-03 02:45:28,793 INFO L276 IsEmpty]: Start isEmpty. Operand 23483 states and 33193 transitions. [2022-11-03 02:45:28,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2022-11-03 02:45:28,805 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:45:28,805 INFO L195 NwaCegarLoop]: trace histogram [36, 32, 32, 32, 32, 32, 32, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:45:28,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:45:28,805 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)] === [2022-11-03 02:45:28,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:45:28,806 INFO L85 PathProgramCache]: Analyzing trace with hash -67193640, now seen corresponding path program 1 times [2022-11-03 02:45:28,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:45:28,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818301337] [2022-11-03 02:45:28,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:45:28,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:45:29,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:45:31,226 INFO L134 CoverageAnalysis]: Checked inductivity of 4270 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4270 trivial. 0 not checked. [2022-11-03 02:45:31,226 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:45:31,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818301337] [2022-11-03 02:45:31,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818301337] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:45:31,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:45:31,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:45:31,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175974764] [2022-11-03 02:45:31,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:45:31,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:45:31,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:45:31,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:45:31,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:45:31,229 INFO L87 Difference]: Start difference. First operand 23483 states and 33193 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2022-11-03 02:45:33,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:45:35,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:45:39,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:45:42,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:45:44,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:45:55,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:45:57,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:45:59,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:45:59,292 INFO L93 Difference]: Finished difference Result 46356 states and 65556 transitions. [2022-11-03 02:45:59,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:45:59,293 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) Word has length 413 [2022-11-03 02:45:59,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:45:59,518 INFO L225 Difference]: With dead ends: 46356 [2022-11-03 02:45:59,519 INFO L226 Difference]: Without dead ends: 46354 [2022-11-03 02:45:59,542 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 [2022-11-03 02:45:59,543 INFO L413 NwaCegarLoop]: 3627 mSDtfsCounter, 3124 mSDsluCounter, 11641 mSDsCounter, 0 mSdLazyCounter, 2263 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3136 SdHoareTripleChecker+Valid, 13596 SdHoareTripleChecker+Invalid, 2269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2263 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:45:59,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3136 Valid, 13596 Invalid, 2269 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2263 Invalid, 4 Unknown, 0 Unchecked, 26.7s Time] [2022-11-03 02:45:59,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46354 states. [2022-11-03 02:46:01,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46354 to 46324. [2022-11-03 02:46:01,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46324 states, 29755 states have (on average 1.3446143505293229) internal successors, (40009), 30274 states have internal predecessors, (40009), 12740 states have call successors, (12740), 3839 states have call predecessors, (12740), 3826 states have return successors, (12766), 12426 states have call predecessors, (12766), 12732 states have call successors, (12766) [2022-11-03 02:46:01,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46324 states to 46324 states and 65515 transitions. [2022-11-03 02:46:01,935 INFO L78 Accepts]: Start accepts. Automaton has 46324 states and 65515 transitions. Word has length 413 [2022-11-03 02:46:01,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:46:01,936 INFO L495 AbstractCegarLoop]: Abstraction has 46324 states and 65515 transitions. [2022-11-03 02:46:01,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2022-11-03 02:46:01,936 INFO L276 IsEmpty]: Start isEmpty. Operand 46324 states and 65515 transitions. [2022-11-03 02:46:01,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2022-11-03 02:46:01,947 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:46:01,947 INFO L195 NwaCegarLoop]: trace histogram [36, 32, 32, 32, 32, 32, 32, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:46:01,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:46:01,948 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)] === [2022-11-03 02:46:01,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:46:01,949 INFO L85 PathProgramCache]: Analyzing trace with hash 459345170, now seen corresponding path program 1 times [2022-11-03 02:46:01,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:46:01,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624513022] [2022-11-03 02:46:01,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:46:01,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:46:02,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:46:04,786 INFO L134 CoverageAnalysis]: Checked inductivity of 4272 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4270 trivial. 0 not checked. [2022-11-03 02:46:04,786 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:46:04,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624513022] [2022-11-03 02:46:04,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624513022] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:46:04,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:46:04,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:46:04,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273115198] [2022-11-03 02:46:04,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:46:04,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:46:04,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:46:04,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:46:04,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:46:04,789 INFO L87 Difference]: Start difference. First operand 46324 states and 65515 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 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) [2022-11-03 02:46:07,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:46:13,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:46:17,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:46:26,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:46:26,848 INFO L93 Difference]: Finished difference Result 46468 states and 65667 transitions. [2022-11-03 02:46:26,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:46:26,848 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 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 418 [2022-11-03 02:46:26,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:46:27,034 INFO L225 Difference]: With dead ends: 46468 [2022-11-03 02:46:27,034 INFO L226 Difference]: Without dead ends: 46466 [2022-11-03 02:46:27,054 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 [2022-11-03 02:46:27,055 INFO L413 NwaCegarLoop]: 3633 mSDtfsCounter, 3133 mSDsluCounter, 11652 mSDsCounter, 0 mSdLazyCounter, 2270 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3140 SdHoareTripleChecker+Valid, 13608 SdHoareTripleChecker+Invalid, 2274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2270 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:46:27,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3140 Valid, 13608 Invalid, 2274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2270 Invalid, 2 Unknown, 0 Unchecked, 20.6s Time] [2022-11-03 02:46:27,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46466 states. [2022-11-03 02:46:29,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46466 to 46442. [2022-11-03 02:46:29,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46442 states, 29830 states have (on average 1.3442842775729131) internal successors, (40100), 30357 states have internal predecessors, (40100), 12762 states have call successors, (12762), 3858 states have call predecessors, (12762), 3847 states have return successors, (12776), 12442 states have call predecessors, (12776), 12754 states have call successors, (12776) [2022-11-03 02:46:29,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46442 states to 46442 states and 65638 transitions. [2022-11-03 02:46:29,639 INFO L78 Accepts]: Start accepts. Automaton has 46442 states and 65638 transitions. Word has length 418 [2022-11-03 02:46:29,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:46:29,640 INFO L495 AbstractCegarLoop]: Abstraction has 46442 states and 65638 transitions. [2022-11-03 02:46:29,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 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) [2022-11-03 02:46:29,641 INFO L276 IsEmpty]: Start isEmpty. Operand 46442 states and 65638 transitions. [2022-11-03 02:46:29,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2022-11-03 02:46:29,651 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:46:29,652 INFO L195 NwaCegarLoop]: trace histogram [36, 32, 32, 32, 32, 32, 32, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:46:29,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 02:46:29,652 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 02:46:29,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:46:29,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1562986236, now seen corresponding path program 1 times [2022-11-03 02:46:29,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:46:29,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697124118] [2022-11-03 02:46:29,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:46:29,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:46:29,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:46:32,041 INFO L134 CoverageAnalysis]: Checked inductivity of 4279 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4275 trivial. 0 not checked. [2022-11-03 02:46:32,041 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:46:32,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697124118] [2022-11-03 02:46:32,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697124118] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:46:32,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:46:32,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:46:32,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592572226] [2022-11-03 02:46:32,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:46:32,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:46:32,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:46:32,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:46:32,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:46:32,043 INFO L87 Difference]: Start difference. First operand 46442 states and 65638 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 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) [2022-11-03 02:46:34,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:46:40,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:46:42,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:46:45,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:46:47,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:46:53,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:46:55,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:46:57,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:47:01,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:47:03,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:47:05,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:47:08,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:47:09,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:47:09,505 INFO L93 Difference]: Finished difference Result 69147 states and 97848 transitions. [2022-11-03 02:47:09,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:47:09,506 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 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 424 [2022-11-03 02:47:09,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:47:09,817 INFO L225 Difference]: With dead ends: 69147 [2022-11-03 02:47:09,817 INFO L226 Difference]: Without dead ends: 69145 [2022-11-03 02:47:09,853 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 [2022-11-03 02:47:09,854 INFO L413 NwaCegarLoop]: 3635 mSDtfsCounter, 3108 mSDsluCounter, 11647 mSDsCounter, 0 mSdLazyCounter, 2265 mSolverCounterSat, 3 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3116 SdHoareTripleChecker+Valid, 13608 SdHoareTripleChecker+Invalid, 2274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2265 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:47:09,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3116 Valid, 13608 Invalid, 2274 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 2265 Invalid, 6 Unknown, 0 Unchecked, 35.4s Time] [2022-11-03 02:47:09,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69145 states. [2022-11-03 02:47:12,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69145 to 69125. [2022-11-03 02:47:12,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69125 states, 44454 states have (on average 1.345098303864669) internal successors, (59795), 45239 states have internal predecessors, (59795), 18944 states have call successors, (18944), 5762 states have call predecessors, (18944), 5724 states have return successors, (19089), 18435 states have call predecessors, (19089), 18932 states have call successors, (19089) [2022-11-03 02:47:13,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69125 states to 69125 states and 97828 transitions. [2022-11-03 02:47:13,325 INFO L78 Accepts]: Start accepts. Automaton has 69125 states and 97828 transitions. Word has length 424 [2022-11-03 02:47:13,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:47:13,326 INFO L495 AbstractCegarLoop]: Abstraction has 69125 states and 97828 transitions. [2022-11-03 02:47:13,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 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) [2022-11-03 02:47:13,327 INFO L276 IsEmpty]: Start isEmpty. Operand 69125 states and 97828 transitions. [2022-11-03 02:47:13,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2022-11-03 02:47:13,335 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:47:13,336 INFO L195 NwaCegarLoop]: trace histogram [36, 32, 32, 32, 32, 32, 32, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:47:13,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 02:47:13,336 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)] === [2022-11-03 02:47:13,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:47:13,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1168793838, now seen corresponding path program 1 times [2022-11-03 02:47:13,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:47:13,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003789269] [2022-11-03 02:47:13,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:47:13,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:47:13,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:47:15,526 INFO L134 CoverageAnalysis]: Checked inductivity of 4289 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4283 trivial. 0 not checked. [2022-11-03 02:47:15,527 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:47:15,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003789269] [2022-11-03 02:47:15,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003789269] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:47:15,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:47:15,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:47:15,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121953107] [2022-11-03 02:47:15,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:47:15,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:47:15,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:47:15,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:47:15,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:47:15,529 INFO L87 Difference]: Start difference. First operand 69125 states and 97828 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 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) [2022-11-03 02:47:17,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:47:23,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:47:27,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:47:29,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:47:37,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:47:41,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:47:44,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:47:46,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:47:47,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:47:47,822 INFO L93 Difference]: Finished difference Result 69137 states and 97836 transitions. [2022-11-03 02:47:47,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:47:47,823 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 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 429 [2022-11-03 02:47:47,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:47:48,107 INFO L225 Difference]: With dead ends: 69137 [2022-11-03 02:47:48,107 INFO L226 Difference]: Without dead ends: 69135 [2022-11-03 02:47:48,136 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 [2022-11-03 02:47:48,139 INFO L413 NwaCegarLoop]: 3630 mSDtfsCounter, 3120 mSDsluCounter, 11645 mSDsCounter, 0 mSdLazyCounter, 2266 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3127 SdHoareTripleChecker+Valid, 13599 SdHoareTripleChecker+Invalid, 2273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2266 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:47:48,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3127 Valid, 13599 Invalid, 2273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2266 Invalid, 5 Unknown, 0 Unchecked, 30.0s Time] [2022-11-03 02:47:48,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69135 states. [2022-11-03 02:47:50,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69135 to 69129. [2022-11-03 02:47:50,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69129 states, 44457 states have (on average 1.345075016307893) internal successors, (59798), 45242 states have internal predecessors, (59798), 18944 states have call successors, (18944), 5763 states have call predecessors, (18944), 5725 states have return successors, (19089), 18435 states have call predecessors, (19089), 18932 states have call successors, (19089) [2022-11-03 02:47:51,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69129 states to 69129 states and 97831 transitions. [2022-11-03 02:47:51,381 INFO L78 Accepts]: Start accepts. Automaton has 69129 states and 97831 transitions. Word has length 429 [2022-11-03 02:47:51,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:47:51,381 INFO L495 AbstractCegarLoop]: Abstraction has 69129 states and 97831 transitions. [2022-11-03 02:47:51,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 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) [2022-11-03 02:47:51,382 INFO L276 IsEmpty]: Start isEmpty. Operand 69129 states and 97831 transitions. [2022-11-03 02:47:51,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2022-11-03 02:47:51,390 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:47:51,391 INFO L195 NwaCegarLoop]: trace histogram [36, 32, 32, 32, 32, 32, 32, 5, 4, 4, 4, 4, 2, 2, 2, 2, 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] [2022-11-03 02:47:51,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 02:47:51,391 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)] === [2022-11-03 02:47:51,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:47:51,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1136496104, now seen corresponding path program 1 times [2022-11-03 02:47:51,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:47:51,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385893787] [2022-11-03 02:47:51,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:47:51,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:47:51,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:47:53,494 INFO L134 CoverageAnalysis]: Checked inductivity of 4305 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4297 trivial. 0 not checked. [2022-11-03 02:47:53,494 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:47:53,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385893787] [2022-11-03 02:47:53,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385893787] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:47:53,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:47:53,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:47:53,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146574873] [2022-11-03 02:47:53,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:47:53,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:47:53,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:47:53,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:47:53,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:47:53,497 INFO L87 Difference]: Start difference. First operand 69129 states and 97831 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 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) [2022-11-03 02:47:55,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:47:58,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:02,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:48:05,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:08,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:20,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:22,966 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:48:23,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:48:23,328 INFO L93 Difference]: Finished difference Result 69141 states and 97839 transitions. [2022-11-03 02:48:23,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:48:23,330 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 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 435 [2022-11-03 02:48:23,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:48:23,553 INFO L225 Difference]: With dead ends: 69141 [2022-11-03 02:48:23,553 INFO L226 Difference]: Without dead ends: 69139 [2022-11-03 02:48:23,572 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 [2022-11-03 02:48:23,573 INFO L413 NwaCegarLoop]: 3630 mSDtfsCounter, 3119 mSDsluCounter, 11640 mSDsCounter, 0 mSdLazyCounter, 2262 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3126 SdHoareTripleChecker+Valid, 13599 SdHoareTripleChecker+Invalid, 2268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2262 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:48:23,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3126 Valid, 13599 Invalid, 2268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2262 Invalid, 4 Unknown, 0 Unchecked, 27.3s Time] [2022-11-03 02:48:23,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69139 states. [2022-11-03 02:48:26,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69139 to 69133. [2022-11-03 02:48:26,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69133 states, 44460 states have (on average 1.345051731893837) internal successors, (59801), 45245 states have internal predecessors, (59801), 18944 states have call successors, (18944), 5764 states have call predecessors, (18944), 5726 states have return successors, (19089), 18435 states have call predecessors, (19089), 18932 states have call successors, (19089) [2022-11-03 02:48:26,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69133 states to 69133 states and 97834 transitions. [2022-11-03 02:48:26,985 INFO L78 Accepts]: Start accepts. Automaton has 69133 states and 97834 transitions. Word has length 435 [2022-11-03 02:48:27,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:48:27,000 INFO L495 AbstractCegarLoop]: Abstraction has 69133 states and 97834 transitions. [2022-11-03 02:48:27,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 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) [2022-11-03 02:48:27,000 INFO L276 IsEmpty]: Start isEmpty. Operand 69133 states and 97834 transitions. [2022-11-03 02:48:27,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2022-11-03 02:48:27,013 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:48:27,013 INFO L195 NwaCegarLoop]: trace histogram [36, 32, 32, 32, 32, 32, 32, 6, 5, 5, 4, 4, 2, 2, 2, 2, 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, 1, 1] [2022-11-03 02:48:27,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-03 02:48:27,014 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 02:48:27,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:48:27,014 INFO L85 PathProgramCache]: Analyzing trace with hash -23726382, now seen corresponding path program 1 times [2022-11-03 02:48:27,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:48:27,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043202398] [2022-11-03 02:48:27,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:48:27,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:48:27,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:48:29,010 INFO L134 CoverageAnalysis]: Checked inductivity of 4323 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 4313 trivial. 0 not checked. [2022-11-03 02:48:29,010 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:48:29,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043202398] [2022-11-03 02:48:29,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043202398] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:48:29,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:48:29,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:48:29,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921694992] [2022-11-03 02:48:29,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:48:29,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:48:29,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:48:29,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:48:29,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:48:29,013 INFO L87 Difference]: Start difference. First operand 69133 states and 97834 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 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) [2022-11-03 02:48:31,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:38,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:40,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:42,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:56,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:48:56,477 INFO L93 Difference]: Finished difference Result 113777 states and 161360 transitions. [2022-11-03 02:48:56,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:48:56,479 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 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 440 [2022-11-03 02:48:56,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:48:57,029 INFO L225 Difference]: With dead ends: 113777 [2022-11-03 02:48:57,029 INFO L226 Difference]: Without dead ends: 113775 [2022-11-03 02:48:57,063 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 [2022-11-03 02:48:57,063 INFO L413 NwaCegarLoop]: 3621 mSDtfsCounter, 3085 mSDsluCounter, 11618 mSDsCounter, 0 mSdLazyCounter, 2267 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3088 SdHoareTripleChecker+Valid, 13566 SdHoareTripleChecker+Invalid, 2272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2267 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:48:57,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3088 Valid, 13566 Invalid, 2272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2267 Invalid, 2 Unknown, 0 Unchecked, 23.6s Time] [2022-11-03 02:48:57,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113775 states. [2022-11-03 02:49:02,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113775 to 113749. [2022-11-03 02:49:02,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113749 states, 73248 states have (on average 1.3465896679772826) internal successors, (98635), 74573 states have internal predecessors, (98635), 31196 states have call successors, (31196), 9414 states have call predecessors, (31196), 9302 states have return successors, (31502), 30277 states have call predecessors, (31502), 31176 states have call successors, (31502) [2022-11-03 02:49:02,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113749 states to 113749 states and 161333 transitions. [2022-11-03 02:49:02,648 INFO L78 Accepts]: Start accepts. Automaton has 113749 states and 161333 transitions. Word has length 440 [2022-11-03 02:49:02,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:49:02,649 INFO L495 AbstractCegarLoop]: Abstraction has 113749 states and 161333 transitions. [2022-11-03 02:49:02,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 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) [2022-11-03 02:49:02,649 INFO L276 IsEmpty]: Start isEmpty. Operand 113749 states and 161333 transitions. [2022-11-03 02:49:02,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2022-11-03 02:49:02,665 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:49:02,665 INFO L195 NwaCegarLoop]: trace histogram [37, 32, 32, 32, 32, 32, 32, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:49:02,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-03 02:49:02,666 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 02:49:02,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:49:02,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1423885935, now seen corresponding path program 1 times [2022-11-03 02:49:02,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:49:02,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019671617] [2022-11-03 02:49:02,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:49:02,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:49:03,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:49:03,671 INFO L134 CoverageAnalysis]: Checked inductivity of 4348 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4341 trivial. 0 not checked. [2022-11-03 02:49:03,672 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:49:03,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019671617] [2022-11-03 02:49:03,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019671617] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:49:03,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:49:03,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:49:03,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861921566] [2022-11-03 02:49:03,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:49:03,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:49:03,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:49:03,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:49:03,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:49:03,675 INFO L87 Difference]: Start difference. First operand 113749 states and 161333 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2022-11-03 02:49:06,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:49:12,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:49:16,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:49:18,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:49:21,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:49:29,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:49:33,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:49:33,964 INFO L93 Difference]: Finished difference Result 264000 states and 374577 transitions. [2022-11-03 02:49:33,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:49:33,966 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 436 [2022-11-03 02:49:33,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:49:34,655 INFO L225 Difference]: With dead ends: 264000 [2022-11-03 02:49:34,655 INFO L226 Difference]: Without dead ends: 150754 [2022-11-03 02:49:35,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:49:35,236 INFO L413 NwaCegarLoop]: 5353 mSDtfsCounter, 3035 mSDsluCounter, 3309 mSDsCounter, 0 mSdLazyCounter, 1562 mSolverCounterSat, 3 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3036 SdHoareTripleChecker+Valid, 8147 SdHoareTripleChecker+Invalid, 1569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1562 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:49:35,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3036 Valid, 8147 Invalid, 1569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1562 Invalid, 4 Unknown, 0 Unchecked, 23.3s Time] [2022-11-03 02:49:35,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150754 states.