./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.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_f48ad510-b48f-4e20-8350-0f281530e40c/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f48ad510-b48f-4e20-8350-0f281530e40c/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_f48ad510-b48f-4e20-8350-0f281530e40c/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f48ad510-b48f-4e20-8350-0f281530e40c/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f48ad510-b48f-4e20-8350-0f281530e40c/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_f48ad510-b48f-4e20-8350-0f281530e40c/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 678d1ed0889f06c506279e4c19484f47385b64dd1d4a949ec484624bf8468835 --- 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 02:12:51,798 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:12:51,807 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:12:51,851 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:12:51,852 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:12:51,856 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:12:51,858 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:12:51,864 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:12:51,866 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:12:51,872 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:12:51,873 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:12:51,876 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:12:51,876 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:12:51,879 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:12:51,880 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:12:51,882 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:12:51,884 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:12:51,885 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:12:51,887 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:12:51,894 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:12:51,895 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:12:51,897 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:12:51,900 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:12:51,901 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:12:51,909 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:12:51,910 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:12:51,910 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:12:51,912 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:12:51,913 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:12:51,914 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:12:51,914 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:12:51,915 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:12:51,917 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:12:51,918 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:12:51,919 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:12:51,920 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:12:51,920 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:12:51,921 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:12:51,921 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:12:51,922 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:12:51,923 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:12:51,924 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f48ad510-b48f-4e20-8350-0f281530e40c/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 02:12:51,963 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:12:51,964 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:12:51,964 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:12:51,965 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:12:51,966 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:12:51,966 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:12:51,966 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:12:51,966 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:12:51,967 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:12:51,967 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:12:51,968 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:12:51,968 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:12:51,969 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:12:51,969 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:12:51,969 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:12:51,970 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:12:51,970 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:12:51,970 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:12:51,971 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:12:51,971 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:12:51,972 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:12:51,972 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:12:51,972 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:12:51,974 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:12:51,974 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:12:51,974 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:12:51,975 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:12:51,975 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:12:51,975 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:12:51,976 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:12:51,976 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:12:51,976 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:12:51,977 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:12:51,977 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:12:51,977 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:12:51,977 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:12:51,978 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:12:51,978 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:12:51,978 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_f48ad510-b48f-4e20-8350-0f281530e40c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f48ad510-b48f-4e20-8350-0f281530e40c/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 678d1ed0889f06c506279e4c19484f47385b64dd1d4a949ec484624bf8468835 [2022-11-03 02:12:52,286 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:12:52,332 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:12:52,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:12:52,336 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:12:52,337 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:12:52,338 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f48ad510-b48f-4e20-8350-0f281530e40c/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2022-11-03 02:12:52,427 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f48ad510-b48f-4e20-8350-0f281530e40c/bin/utaipan-7li7fVZpFI/data/c681fdc78/e18c31fd44eb44d4a618a2c2b63f96a1/FLAG09277fdd1 [2022-11-03 02:12:53,594 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:12:53,595 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f48ad510-b48f-4e20-8350-0f281530e40c/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2022-11-03 02:12:53,700 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f48ad510-b48f-4e20-8350-0f281530e40c/bin/utaipan-7li7fVZpFI/data/c681fdc78/e18c31fd44eb44d4a618a2c2b63f96a1/FLAG09277fdd1 [2022-11-03 02:12:53,770 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f48ad510-b48f-4e20-8350-0f281530e40c/bin/utaipan-7li7fVZpFI/data/c681fdc78/e18c31fd44eb44d4a618a2c2b63f96a1 [2022-11-03 02:12:53,773 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:12:53,776 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:12:53,780 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:12:53,780 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:12:53,784 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:12:53,786 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:12:53" (1/1) ... [2022-11-03 02:12:53,788 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a9526df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:12:53, skipping insertion in model container [2022-11-03 02:12:53,788 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:12:53" (1/1) ... [2022-11-03 02:12:53,796 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:12:54,145 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:13:02,174 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_f48ad510-b48f-4e20-8350-0f281530e40c/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[596672,596685] [2022-11-03 02:13:02,178 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_f48ad510-b48f-4e20-8350-0f281530e40c/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[596841,596854] [2022-11-03 02:13:02,179 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_f48ad510-b48f-4e20-8350-0f281530e40c/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[597008,597021] [2022-11-03 02:13:02,185 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_f48ad510-b48f-4e20-8350-0f281530e40c/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[597176,597189] [2022-11-03 02:13:02,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:13:02,324 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:13:03,226 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_f48ad510-b48f-4e20-8350-0f281530e40c/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[596672,596685] [2022-11-03 02:13:03,227 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_f48ad510-b48f-4e20-8350-0f281530e40c/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[596841,596854] [2022-11-03 02:13:03,227 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_f48ad510-b48f-4e20-8350-0f281530e40c/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[597008,597021] [2022-11-03 02:13:03,228 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_f48ad510-b48f-4e20-8350-0f281530e40c/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[597176,597189] [2022-11-03 02:13:03,239 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:13:03,728 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:13:03,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:03 WrapperNode [2022-11-03 02:13:03,729 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:13:03,730 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:13:03,730 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:13:03,730 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:13:03,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:03" (1/1) ... [2022-11-03 02:13:03,965 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:03" (1/1) ... [2022-11-03 02:13:04,264 INFO L138 Inliner]: procedures = 824, calls = 5679, calls flagged for inlining = 430, calls inlined = 371, statements flattened = 11405 [2022-11-03 02:13:04,265 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:13:04,266 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:13:04,266 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:13:04,266 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:13:04,276 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:03" (1/1) ... [2022-11-03 02:13:04,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:03" (1/1) ... [2022-11-03 02:13:04,477 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:03" (1/1) ... [2022-11-03 02:13:04,485 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:03" (1/1) ... [2022-11-03 02:13:04,868 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:03" (1/1) ... [2022-11-03 02:13:04,921 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:03" (1/1) ... [2022-11-03 02:13:05,025 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:03" (1/1) ... [2022-11-03 02:13:05,078 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:03" (1/1) ... [2022-11-03 02:13:05,166 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:13:05,167 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:13:05,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:13:05,167 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:13:05,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:03" (1/1) ... [2022-11-03 02:13:05,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:13:05,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f48ad510-b48f-4e20-8350-0f281530e40c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:13:05,210 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f48ad510-b48f-4e20-8350-0f281530e40c/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:13:05,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f48ad510-b48f-4e20-8350-0f281530e40c/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:13:05,265 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-03 02:13:05,266 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-03 02:13:05,266 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_remove [2022-11-03 02:13:05,266 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_remove [2022-11-03 02:13:05,266 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_led [2022-11-03 02:13:05,266 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_led [2022-11-03 02:13:05,266 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_alloc_rx_skbs [2022-11-03 02:13:05,267 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_alloc_rx_skbs [2022-11-03 02:13:05,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-03 02:13:05,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-03 02:13:05,267 INFO L130 BoogieDeclarations]: Found specification of procedure rx_set_rss [2022-11-03 02:13:05,267 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_set_rss [2022-11-03 02:13:05,267 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_power_aux [2022-11-03 02:13:05,268 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_power_aux [2022-11-03 02:13:05,268 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-03 02:13:05,268 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-03 02:13:05,268 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2022-11-03 02:13:05,268 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2022-11-03 02:13:05,268 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-03 02:13:05,269 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-03 02:13:05,269 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_add_filter [2022-11-03 02:13:05,269 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_add_filter [2022-11-03 02:13:05,269 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-03 02:13:05,269 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-03 02:13:05,270 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2022-11-03 02:13:05,270 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2022-11-03 02:13:05,270 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size_set [2022-11-03 02:13:05,270 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size_set [2022-11-03 02:13:05,271 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-03 02:13:05,271 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-03 02:13:05,271 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-03 02:13:05,271 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-03 02:13:05,271 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_init_netdev [2022-11-03 02:13:05,272 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_init_netdev [2022-11-03 02:13:05,272 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-03 02:13:05,272 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-03 02:13:05,272 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-03 02:13:05,273 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-03 02:13:05,273 INFO L130 BoogieDeclarations]: Found specification of procedure netif_schedule_queue [2022-11-03 02:13:05,273 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_schedule_queue [2022-11-03 02:13:05,273 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_get_regs_len [2022-11-03 02:13:05,273 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_get_regs_len [2022-11-03 02:13:05,274 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-03 02:13:05,275 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-03 02:13:05,275 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_update [2022-11-03 02:13:05,275 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_update [2022-11-03 02:13:05,276 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-03 02:13:05,276 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-03 02:13:05,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 02:13:05,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 02:13:05,276 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_ramset [2022-11-03 02:13:05,276 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_ramset [2022-11-03 02:13:05,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:13:05,277 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_update_features [2022-11-03 02:13:05,278 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_update_features [2022-11-03 02:13:05,278 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_netpoll [2022-11-03 02:13:05,278 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_netpoll [2022-11-03 02:13:05,278 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-03 02:13:05,278 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-03 02:13:05,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-03 02:13:05,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-03 02:13:05,279 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2022-11-03 02:13:05,279 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2022-11-03 02:13:05,279 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-03 02:13:05,279 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-03 02:13:05,279 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-03 02:13:05,280 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-03 02:13:05,281 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-03 02:13:05,281 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-03 02:13:05,281 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_lock [2022-11-03 02:13:05,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_lock [2022-11-03 02:13:05,281 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2022-11-03 02:13:05,281 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2022-11-03 02:13:05,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-03 02:13:05,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-03 02:13:05,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:13:05,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-03 02:13:05,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-03 02:13:05,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-03 02:13:05,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-03 02:13:05,284 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_add [2022-11-03 02:13:05,284 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_add [2022-11-03 02:13:05,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2022-11-03 02:13:05,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2022-11-03 02:13:05,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-03 02:13:05,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-03 02:13:05,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2022-11-03 02:13:05,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2022-11-03 02:13:05,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_5 [2022-11-03 02:13:05,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_5 [2022-11-03 02:13:05,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-03 02:13:05,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-03 02:13:05,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:13:05,286 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_map_skb [2022-11-03 02:13:05,286 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_map_skb [2022-11-03 02:13:05,287 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_resume [2022-11-03 02:13:05,287 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_resume [2022-11-03 02:13:05,287 INFO L130 BoogieDeclarations]: Found specification of procedure roundup_ring_size [2022-11-03 02:13:05,287 INFO L138 BoogieDeclarations]: Found implementation of procedure roundup_ring_size [2022-11-03 02:13:05,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 02:13:05,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 02:13:05,288 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 02:13:05,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 02:13:05,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:13:05,288 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 02:13:05,289 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_read32 [2022-11-03 02:13:05,289 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_read32 [2022-11-03 02:13:05,289 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-03 02:13:05,289 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-03 02:13:05,289 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_disable [2022-11-03 02:13:05,290 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_disable [2022-11-03 02:13:05,290 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_clean [2022-11-03 02:13:05,290 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_clean [2022-11-03 02:13:05,290 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2022-11-03 02:13:05,291 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2022-11-03 02:13:05,291 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 02:13:05,291 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 02:13:05,291 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_hw_down [2022-11-03 02:13:05,291 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_hw_down [2022-11-03 02:13:05,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-03 02:13:05,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-03 02:13:05,292 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_reinit [2022-11-03 02:13:05,292 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_reinit [2022-11-03 02:13:05,292 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-03 02:13:05,293 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-03 02:13:05,293 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_read16 [2022-11-03 02:13:05,293 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_read16 [2022-11-03 02:13:05,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:13:05,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:13:05,294 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_write16 [2022-11-03 02:13:05,294 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_write16 [2022-11-03 02:13:05,294 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-03 02:13:05,294 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-03 02:13:05,294 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_free_buffers [2022-11-03 02:13:05,294 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_free_buffers [2022-11-03 02:13:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-03 02:13:05,295 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-03 02:13:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 02:13:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-03 02:13:05,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-03 02:13:05,296 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2022-11-03 02:13:05,296 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2022-11-03 02:13:05,296 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2022-11-03 02:13:05,296 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2022-11-03 02:13:05,296 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-03 02:13:05,297 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-03 02:13:05,297 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read32 [2022-11-03 02:13:05,297 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read32 [2022-11-03 02:13:05,297 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-03 02:13:05,297 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_set_multicast [2022-11-03 02:13:05,297 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_set_multicast [2022-11-03 02:13:05,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-03 02:13:05,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-03 02:13:05,298 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_prefetch_init [2022-11-03 02:13:05,298 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_prefetch_init [2022-11-03 02:13:05,298 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_reset [2022-11-03 02:13:05,299 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_reset [2022-11-03 02:13:05,299 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-03 02:13:05,299 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-03 02:13:05,299 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-03 02:13:05,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-03 02:13:05,300 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-03 02:13:05,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-03 02:13:05,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_phy_lock_of_sky2_port [2022-11-03 02:13:05,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_phy_lock_of_sky2_port [2022-11-03 02:13:05,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 02:13:05,301 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 02:13:05,301 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-11-03 02:13:05,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-11-03 02:13:05,301 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-03 02:13:05,301 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-03 02:13:05,301 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_vpd_wait [2022-11-03 02:13:05,302 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_vpd_wait [2022-11-03 02:13:05,302 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-03 02:13:05,302 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-03 02:13:05,302 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_shutdown [2022-11-03 02:13:05,302 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_shutdown [2022-11-03 02:13:05,303 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read16 [2022-11-03 02:13:05,303 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read16 [2022-11-03 02:13:05,303 INFO L130 BoogieDeclarations]: Found specification of procedure get_tx_le [2022-11-03 02:13:05,303 INFO L138 BoogieDeclarations]: Found implementation of procedure get_tx_le [2022-11-03 02:13:05,303 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_stop [2022-11-03 02:13:05,303 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_stop [2022-11-03 02:13:05,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:13:05,304 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 02:13:05,304 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 02:13:05,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:13:05,304 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_all_down [2022-11-03 02:13:05,305 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_all_down [2022-11-03 02:13:05,305 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-03 02:13:05,305 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-03 02:13:05,305 INFO L130 BoogieDeclarations]: Found specification of procedure __gm_phy_read [2022-11-03 02:13:05,305 INFO L138 BoogieDeclarations]: Found implementation of procedure __gm_phy_read [2022-11-03 02:13:05,305 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-03 02:13:05,306 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-03 02:13:05,306 INFO L130 BoogieDeclarations]: Found specification of procedure pci_find_capability [2022-11-03 02:13:05,306 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_find_capability [2022-11-03 02:13:05,306 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-03 02:13:05,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-03 02:13:05,307 INFO L130 BoogieDeclarations]: Found specification of procedure gma_write16 [2022-11-03 02:13:05,307 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_write16 [2022-11-03 02:13:05,307 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-03 02:13:05,307 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-03 02:13:05,307 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_next_rx [2022-11-03 02:13:05,307 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_next_rx [2022-11-03 02:13:05,308 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-03 02:13:05,308 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-03 02:13:05,308 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_irq [2022-11-03 02:13:05,308 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_irq [2022-11-03 02:13:05,308 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_get_eeprom_len [2022-11-03 02:13:05,309 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_get_eeprom_len [2022-11-03 02:13:05,309 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-03 02:13:05,309 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-03 02:13:05,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_79 [2022-11-03 02:13:05,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_79 [2022-11-03 02:13:05,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:13:05,310 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_us2clk [2022-11-03 02:13:05,310 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_us2clk [2022-11-03 02:13:05,310 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 02:13:05,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 02:13:05,310 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_retry_bh [2022-11-03 02:13:05,311 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_retry_bh [2022-11-03 02:13:05,311 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-11-03 02:13:05,311 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-11-03 02:13:05,311 INFO L130 BoogieDeclarations]: Found specification of procedure device_may_wakeup [2022-11-03 02:13:05,311 INFO L138 BoogieDeclarations]: Found implementation of procedure device_may_wakeup [2022-11-03 02:13:05,312 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-03 02:13:05,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-03 02:13:05,312 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_6 [2022-11-03 02:13:05,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_6 [2022-11-03 02:13:05,312 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-11-03 02:13:05,371 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-11-03 02:13:05,371 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_qset [2022-11-03 02:13:05,371 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_qset [2022-11-03 02:13:05,372 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_mhz [2022-11-03 02:13:05,372 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_mhz [2022-11-03 02:13:05,372 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-03 02:13:05,372 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-03 02:13:05,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 02:13:05,372 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 02:13:05,372 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-11-03 02:13:05,373 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-11-03 02:13:05,373 INFO L130 BoogieDeclarations]: Found specification of procedure get_stats32 [2022-11-03 02:13:05,373 INFO L138 BoogieDeclarations]: Found implementation of procedure get_stats32 [2022-11-03 02:13:05,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 02:13:05,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 02:13:05,373 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-03 02:13:05,373 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-03 02:13:05,373 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_supported_modes [2022-11-03 02:13:05,374 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_supported_modes [2022-11-03 02:13:05,374 INFO L130 BoogieDeclarations]: Found specification of procedure gm_phy_read [2022-11-03 02:13:05,374 INFO L138 BoogieDeclarations]: Found implementation of procedure gm_phy_read [2022-11-03 02:13:05,374 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_alloc [2022-11-03 02:13:05,374 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_alloc [2022-11-03 02:13:05,374 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2022-11-03 02:13:05,374 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2022-11-03 02:13:05,375 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_unlock [2022-11-03 02:13:05,375 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_unlock [2022-11-03 02:13:05,375 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 02:13:05,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 02:13:05,375 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_show_addr [2022-11-03 02:13:05,375 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_show_addr [2022-11-03 02:13:05,375 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-03 02:13:05,375 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-03 02:13:05,376 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_close [2022-11-03 02:13:05,376 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_close [2022-11-03 02:13:05,376 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-03 02:13:05,376 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-03 02:13:05,376 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 02:13:05,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 02:13:05,376 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_start [2022-11-03 02:13:05,377 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_start [2022-11-03 02:13:05,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:13:05,377 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2022-11-03 02:13:05,377 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2022-11-03 02:13:05,377 INFO L130 BoogieDeclarations]: Found specification of procedure get_stats64 [2022-11-03 02:13:05,377 INFO L138 BoogieDeclarations]: Found implementation of procedure get_stats64 [2022-11-03 02:13:05,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2022-11-03 02:13:05,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2022-11-03 02:13:05,378 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-11-03 02:13:05,378 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-11-03 02:13:05,378 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-03 02:13:05,378 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-03 02:13:05,378 INFO L130 BoogieDeclarations]: Found specification of procedure pci_is_pcie [2022-11-03 02:13:05,378 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_is_pcie [2022-11-03 02:13:05,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 02:13:05,379 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-11-03 02:13:05,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-11-03 02:13:05,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 02:13:05,379 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-03 02:13:05,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-03 02:13:05,379 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_80 [2022-11-03 02:13:05,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_80 [2022-11-03 02:13:05,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 02:13:05,380 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 02:13:05,380 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-03 02:13:05,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-03 02:13:05,380 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-03 02:13:05,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-03 02:13:05,380 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_hw_up [2022-11-03 02:13:05,380 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_hw_up [2022-11-03 02:13:05,380 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2022-11-03 02:13:05,381 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2022-11-03 02:13:05,381 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_unmap [2022-11-03 02:13:05,381 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_unmap [2022-11-03 02:13:05,381 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_put_idx [2022-11-03 02:13:05,381 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_put_idx [2022-11-03 02:13:05,381 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 02:13:05,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 02:13:05,381 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_dma_map [2022-11-03 02:13:05,382 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_dma_map [2022-11-03 02:13:05,382 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:13:05,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:13:05,382 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_power_up [2022-11-03 02:13:05,382 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_power_up [2022-11-03 02:13:05,385 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_init [2022-11-03 02:13:05,385 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_init [2022-11-03 02:13:05,386 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-03 02:13:05,386 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-03 02:13:05,386 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_complete [2022-11-03 02:13:05,386 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_complete [2022-11-03 02:13:05,387 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_begin_bh [2022-11-03 02:13:05,387 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_begin_bh [2022-11-03 02:13:05,387 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-11-03 02:13:05,387 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-11-03 02:13:05,387 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read16 [2022-11-03 02:13:05,388 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read16 [2022-11-03 02:13:05,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 02:13:05,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 02:13:05,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 02:13:05,388 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_all_up [2022-11-03 02:13:05,389 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_all_up [2022-11-03 02:13:05,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-03 02:13:05,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-03 02:13:05,389 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_timeout [2022-11-03 02:13:05,389 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_timeout [2022-11-03 02:13:05,390 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-03 02:13:05,390 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-03 02:13:05,390 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_wol_supported [2022-11-03 02:13:05,390 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_wol_supported [2022-11-03 02:13:05,391 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_write32 [2022-11-03 02:13:05,391 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_write32 [2022-11-03 02:13:05,391 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2022-11-03 02:13:05,391 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2022-11-03 02:13:05,391 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_submit [2022-11-03 02:13:05,392 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_submit [2022-11-03 02:13:05,392 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-11-03 02:13:05,392 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-11-03 02:13:05,392 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-03 02:13:05,392 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-03 02:13:05,393 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_vlan_mode [2022-11-03 02:13:05,393 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_vlan_mode [2022-11-03 02:13:05,393 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read8 [2022-11-03 02:13:05,393 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read8 [2022-11-03 02:13:05,393 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_update_begin [2022-11-03 02:13:05,394 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_update_begin [2022-11-03 02:13:05,394 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read32 [2022-11-03 02:13:05,394 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read32 [2022-11-03 02:13:05,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_phy_lock_of_sky2_port [2022-11-03 02:13:05,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_phy_lock_of_sky2_port [2022-11-03 02:13:05,395 INFO L130 BoogieDeclarations]: Found specification of procedure gma_set_addr [2022-11-03 02:13:05,395 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_set_addr [2022-11-03 02:13:05,395 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-11-03 02:13:05,395 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-11-03 02:13:05,396 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2022-11-03 02:13:05,396 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2022-11-03 02:13:05,396 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-03 02:13:05,396 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-03 02:13:05,396 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-03 02:13:05,397 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-03 02:13:05,397 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-03 02:13:05,397 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-03 02:13:05,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:13:05,398 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_nway_reset [2022-11-03 02:13:05,398 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_nway_reset [2022-11-03 02:13:05,398 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-03 02:13:05,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-03 02:13:05,398 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-03 02:13:05,399 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-03 02:13:05,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-11-03 02:13:05,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-11-03 02:13:05,399 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-03 02:13:05,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-03 02:13:05,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-11-03 02:13:05,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-11-03 02:13:05,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 02:13:05,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 02:13:05,401 INFO L130 BoogieDeclarations]: Found specification of procedure tx_avail [2022-11-03 02:13:05,401 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_avail [2022-11-03 02:13:05,401 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_unmap_skb [2022-11-03 02:13:05,401 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_unmap_skb [2022-11-03 02:13:05,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-03 02:13:05,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-03 02:13:05,402 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_clk2us [2022-11-03 02:13:05,402 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_clk2us [2022-11-03 02:13:05,402 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_set_tx_stfwd [2022-11-03 02:13:05,402 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_set_tx_stfwd [2022-11-03 02:13:05,403 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_enable_rx_tx [2022-11-03 02:13:05,403 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_enable_rx_tx [2022-11-03 02:13:05,403 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-03 02:13:05,403 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-03 02:13:05,404 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2022-11-03 02:13:05,404 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2022-11-03 02:13:05,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_sky2_cleanup_module_22_2 [2022-11-03 02:13:05,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_sky2_cleanup_module_22_2 [2022-11-03 02:13:05,404 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-11-03 02:13:05,405 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-11-03 02:13:05,405 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_setup_irq [2022-11-03 02:13:05,405 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_setup_irq [2022-11-03 02:13:05,405 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 02:13:05,405 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 02:13:05,406 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-11-03 02:13:05,406 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-11-03 02:13:05,406 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-03 02:13:05,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-03 02:13:05,406 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_is_copper [2022-11-03 02:13:05,407 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_is_copper [2022-11-03 02:13:05,407 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-03 02:13:05,407 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-03 02:13:05,407 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_suspend [2022-11-03 02:13:05,407 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_suspend [2022-11-03 02:13:05,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_2_6 [2022-11-03 02:13:05,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_2_6 [2022-11-03 02:13:05,408 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-03 02:13:05,408 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-03 02:13:05,408 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write16 [2022-11-03 02:13:05,409 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write16 [2022-11-03 02:13:05,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 02:13:05,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 02:13:05,409 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-03 02:13:05,409 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-03 02:13:05,410 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write8 [2022-11-03 02:13:05,410 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write8 [2022-11-03 02:13:05,410 INFO L130 BoogieDeclarations]: Found specification of procedure gm_phy_write [2022-11-03 02:13:05,410 INFO L138 BoogieDeclarations]: Found implementation of procedure gm_phy_write [2022-11-03 02:13:05,410 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2022-11-03 02:13:05,411 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2022-11-03 02:13:05,411 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-03 02:13:05,411 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-03 02:13:05,411 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write32 [2022-11-03 02:13:05,411 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write32 [2022-11-03 02:13:05,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:13:05,412 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read64 [2022-11-03 02:13:05,412 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read64 [2022-11-03 02:13:05,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-03 02:13:05,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-03 02:13:05,413 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-03 02:13:05,413 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-03 02:13:05,413 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_open [2022-11-03 02:13:05,413 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_open [2022-11-03 02:13:05,413 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-03 02:13:07,102 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:13:07,109 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:13:07,246 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 02:13:21,723 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-03 02:13:31,192 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:13:34,053 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:13:34,054 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-11-03 02:13:34,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:13:34 BoogieIcfgContainer [2022-11-03 02:13:34,060 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:13:34,063 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:13:34,063 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:13:34,066 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:13:34,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:12:53" (1/3) ... [2022-11-03 02:13:34,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a761f06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:13:34, skipping insertion in model container [2022-11-03 02:13:34,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:03" (2/3) ... [2022-11-03 02:13:34,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a761f06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:13:34, skipping insertion in model container [2022-11-03 02:13:34,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:13:34" (3/3) ... [2022-11-03 02:13:34,073 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2022-11-03 02:13:34,093 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:13:34,093 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-03 02:13:34,216 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:13:34,222 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;@7b0a25e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:13:34,223 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-03 02:13:34,236 INFO L276 IsEmpty]: Start isEmpty. Operand has 3404 states, 1943 states have (on average 1.3113741636644365) internal successors, (2548), 2024 states have internal predecessors, (2548), 1244 states have call successors, (1244), 216 states have call predecessors, (1244), 215 states have return successors, (1234), 1209 states have call predecessors, (1234), 1234 states have call successors, (1234) [2022-11-03 02:13:34,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2022-11-03 02:13:34,268 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:13:34,269 INFO L195 NwaCegarLoop]: trace histogram [33, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:13:34,269 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 02:13:34,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:13:34,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1080043505, now seen corresponding path program 1 times [2022-11-03 02:13:34,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:13:34,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604736883] [2022-11-03 02:13:34,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:13:34,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:13:34,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:13:35,889 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4032 trivial. 0 not checked. [2022-11-03 02:13:35,889 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:13:35,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604736883] [2022-11-03 02:13:35,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604736883] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:13:35,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:13:35,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:13:35,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527727468] [2022-11-03 02:13:35,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:13:35,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:13:35,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:13:35,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:13:35,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:13:35,952 INFO L87 Difference]: Start difference. First operand has 3404 states, 1943 states have (on average 1.3113741636644365) internal successors, (2548), 2024 states have internal predecessors, (2548), 1244 states have call successors, (1244), 216 states have call predecessors, (1244), 215 states have return successors, (1234), 1209 states have call predecessors, (1234), 1234 states have call successors, (1234) Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-11-03 02:13:42,083 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 02:13:44,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:13:47,148 WARN L539 Checker$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 02:13:47,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:13:47,347 INFO L93 Difference]: Finished difference Result 9913 states and 14841 transitions. [2022-11-03 02:13:47,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:13:47,350 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 343 [2022-11-03 02:13:47,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:13:47,435 INFO L225 Difference]: With dead ends: 9913 [2022-11-03 02:13:47,435 INFO L226 Difference]: Without dead ends: 6560 [2022-11-03 02:13:47,470 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 02:13:47,476 INFO L413 NwaCegarLoop]: 5540 mSDtfsCounter, 4730 mSDsluCounter, 4931 mSDsCounter, 0 mSdLazyCounter, 1228 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4734 SdHoareTripleChecker+Valid, 9883 SdHoareTripleChecker+Invalid, 1239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1228 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:13:47,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4734 Valid, 9883 Invalid, 1239 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 1228 Invalid, 2 Unknown, 0 Unchecked, 10.6s Time] [2022-11-03 02:13:47,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6560 states. [2022-11-03 02:13:48,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6560 to 6555. [2022-11-03 02:13:48,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6555 states, 3763 states have (on average 1.3101249003454691) internal successors, (4930), 3923 states have internal predecessors, (4930), 2366 states have call successors, (2366), 425 states have call predecessors, (2366), 423 states have return successors, (2364), 2312 states have call predecessors, (2364), 2362 states have call successors, (2364) [2022-11-03 02:13:48,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6555 states to 6555 states and 9660 transitions. [2022-11-03 02:13:48,183 INFO L78 Accepts]: Start accepts. Automaton has 6555 states and 9660 transitions. Word has length 343 [2022-11-03 02:13:48,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:13:48,190 INFO L495 AbstractCegarLoop]: Abstraction has 6555 states and 9660 transitions. [2022-11-03 02:13:48,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-11-03 02:13:48,191 INFO L276 IsEmpty]: Start isEmpty. Operand 6555 states and 9660 transitions. [2022-11-03 02:13:48,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2022-11-03 02:13:48,224 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:13:48,225 INFO L195 NwaCegarLoop]: trace histogram [33, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:13:48,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:13:48,226 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 02:13:48,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:13:48,228 INFO L85 PathProgramCache]: Analyzing trace with hash 139948868, now seen corresponding path program 1 times [2022-11-03 02:13:48,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:13:48,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321896577] [2022-11-03 02:13:48,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:13:48,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:13:48,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:13:49,347 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4032 trivial. 0 not checked. [2022-11-03 02:13:49,347 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:13:49,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321896577] [2022-11-03 02:13:49,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321896577] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:13:49,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:13:49,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:13:49,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044131201] [2022-11-03 02:13:49,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:13:49,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:13:49,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:13:49,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:13:49,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:13:49,355 INFO L87 Difference]: Start difference. First operand 6555 states and 9660 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-03 02:13:55,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:13:59,285 WARN L539 Checker$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 02:13:59,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:13:59,486 INFO L93 Difference]: Finished difference Result 15785 states and 23230 transitions. [2022-11-03 02:13:59,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:13:59,487 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 370 [2022-11-03 02:13:59,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:13:59,567 INFO L225 Difference]: With dead ends: 15785 [2022-11-03 02:13:59,567 INFO L226 Difference]: Without dead ends: 9295 [2022-11-03 02:13:59,604 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 02:13:59,605 INFO L413 NwaCegarLoop]: 5455 mSDtfsCounter, 4392 mSDsluCounter, 4921 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 17 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4394 SdHoareTripleChecker+Valid, 9788 SdHoareTripleChecker+Invalid, 1276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:13:59,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4394 Valid, 9788 Invalid, 1276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1257 Invalid, 2 Unknown, 0 Unchecked, 9.2s Time] [2022-11-03 02:13:59,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9295 states. [2022-11-03 02:14:00,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9295 to 9267. [2022-11-03 02:14:00,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9267 states, 5320 states have (on average 1.3056390977443608) internal successors, (6946), 5543 states have internal predecessors, (6946), 3327 states have call successors, (3327), 621 states have call predecessors, (3327), 617 states have return successors, (3325), 3245 states have call predecessors, (3325), 3323 states have call successors, (3325) [2022-11-03 02:14:00,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9267 states to 9267 states and 13598 transitions. [2022-11-03 02:14:00,342 INFO L78 Accepts]: Start accepts. Automaton has 9267 states and 13598 transitions. Word has length 370 [2022-11-03 02:14:00,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:14:00,349 INFO L495 AbstractCegarLoop]: Abstraction has 9267 states and 13598 transitions. [2022-11-03 02:14:00,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-03 02:14:00,351 INFO L276 IsEmpty]: Start isEmpty. Operand 9267 states and 13598 transitions. [2022-11-03 02:14:00,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2022-11-03 02:14:00,368 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:14:00,368 INFO L195 NwaCegarLoop]: trace histogram [33, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:14:00,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:14:00,369 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 02:14:00,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:14:00,371 INFO L85 PathProgramCache]: Analyzing trace with hash 702427115, now seen corresponding path program 1 times [2022-11-03 02:14:00,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:14:00,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5977369] [2022-11-03 02:14:00,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:14:00,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:14:00,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:14:01,347 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4032 trivial. 0 not checked. [2022-11-03 02:14:01,347 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:14:01,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5977369] [2022-11-03 02:14:01,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5977369] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:14:01,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:14:01,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:14:01,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210290631] [2022-11-03 02:14:01,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:14:01,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:14:01,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:14:01,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:14:01,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:14:01,353 INFO L87 Difference]: Start difference. First operand 9267 states and 13598 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-03 02:14:08,485 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 02:14:09,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:14:09,945 INFO L93 Difference]: Finished difference Result 27119 states and 39792 transitions. [2022-11-03 02:14:09,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:14:09,947 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 371 [2022-11-03 02:14:09,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:14:10,095 INFO L225 Difference]: With dead ends: 27119 [2022-11-03 02:14:10,096 INFO L226 Difference]: Without dead ends: 17917 [2022-11-03 02:14:10,166 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 02:14:10,167 INFO L413 NwaCegarLoop]: 6426 mSDtfsCounter, 4639 mSDsluCounter, 4896 mSDsCounter, 0 mSdLazyCounter, 1415 mSolverCounterSat, 29 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4639 SdHoareTripleChecker+Valid, 10747 SdHoareTripleChecker+Invalid, 1445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1415 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:14:10,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4639 Valid, 10747 Invalid, 1445 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 1415 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2022-11-03 02:14:10,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17917 states. [2022-11-03 02:14:12,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17917 to 17883. [2022-11-03 02:14:12,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17883 states, 10260 states have (on average 1.2998050682261209) internal successors, (13336), 10691 states have internal predecessors, (13336), 6413 states have call successors, (6413), 1214 states have call predecessors, (6413), 1207 states have return successors, (6413), 6256 states have call predecessors, (6413), 6409 states have call successors, (6413) [2022-11-03 02:14:12,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17883 states to 17883 states and 26162 transitions. [2022-11-03 02:14:12,320 INFO L78 Accepts]: Start accepts. Automaton has 17883 states and 26162 transitions. Word has length 371 [2022-11-03 02:14:12,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:14:12,321 INFO L495 AbstractCegarLoop]: Abstraction has 17883 states and 26162 transitions. [2022-11-03 02:14:12,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-03 02:14:12,322 INFO L276 IsEmpty]: Start isEmpty. Operand 17883 states and 26162 transitions. [2022-11-03 02:14:12,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 02:14:12,340 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:14:12,340 INFO L195 NwaCegarLoop]: trace histogram [33, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:14:12,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:14:12,341 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 02:14:12,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:14:12,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1479964069, now seen corresponding path program 1 times [2022-11-03 02:14:12,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:14:12,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841424965] [2022-11-03 02:14:12,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:14:12,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:14:12,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:14:13,230 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4032 trivial. 0 not checked. [2022-11-03 02:14:13,231 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:14:13,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841424965] [2022-11-03 02:14:13,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841424965] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:14:13,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:14:13,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:14:13,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091199341] [2022-11-03 02:14:13,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:14:13,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:14:13,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:14:13,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:14:13,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:14:13,236 INFO L87 Difference]: Start difference. First operand 17883 states and 26162 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-03 02:14:21,423 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 02:14:21,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:14:21,717 INFO L93 Difference]: Finished difference Result 43522 states and 63221 transitions. [2022-11-03 02:14:21,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:14:21,718 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 373 [2022-11-03 02:14:21,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:14:21,899 INFO L225 Difference]: With dead ends: 43522 [2022-11-03 02:14:21,899 INFO L226 Difference]: Without dead ends: 25704 [2022-11-03 02:14:21,986 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 02:14:21,992 INFO L413 NwaCegarLoop]: 5375 mSDtfsCounter, 3727 mSDsluCounter, 4862 mSDsCounter, 0 mSdLazyCounter, 1275 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3727 SdHoareTripleChecker+Valid, 9691 SdHoareTripleChecker+Invalid, 1283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1275 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:14:21,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3727 Valid, 9691 Invalid, 1283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1275 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2022-11-03 02:14:22,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25704 states. [2022-11-03 02:14:24,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25704 to 25671. [2022-11-03 02:14:24,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25671 states, 14451 states have (on average 1.2764514566465988) internal successors, (18446), 15073 states have internal predecessors, (18446), 9313 states have call successors, (9313), 1918 states have call predecessors, (9313), 1904 states have return successors, (9323), 9076 states have call predecessors, (9323), 9309 states have call successors, (9323) [2022-11-03 02:14:24,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25671 states to 25671 states and 37082 transitions. [2022-11-03 02:14:24,584 INFO L78 Accepts]: Start accepts. Automaton has 25671 states and 37082 transitions. Word has length 373 [2022-11-03 02:14:24,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:14:24,587 INFO L495 AbstractCegarLoop]: Abstraction has 25671 states and 37082 transitions. [2022-11-03 02:14:24,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-03 02:14:24,587 INFO L276 IsEmpty]: Start isEmpty. Operand 25671 states and 37082 transitions. [2022-11-03 02:14:24,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2022-11-03 02:14:24,607 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:14:24,608 INFO L195 NwaCegarLoop]: trace histogram [33, 32, 32, 32, 32, 32, 32, 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] [2022-11-03 02:14:24,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:14:24,609 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 02:14:24,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:14:24,610 INFO L85 PathProgramCache]: Analyzing trace with hash 873557452, now seen corresponding path program 1 times [2022-11-03 02:14:24,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:14:24,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332511466] [2022-11-03 02:14:24,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:14:24,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:14:25,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:14:25,845 INFO L134 CoverageAnalysis]: Checked inductivity of 4035 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4035 trivial. 0 not checked. [2022-11-03 02:14:25,846 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:14:25,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332511466] [2022-11-03 02:14:25,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332511466] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:14:25,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:14:25,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:14:25,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153175996] [2022-11-03 02:14:25,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:14:25,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:14:25,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:14:25,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:14:25,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:14:25,851 INFO L87 Difference]: Start difference. First operand 25671 states and 37082 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2022-11-03 02:14:31,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:14:34,171 WARN L539 Checker$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 02:14:37,712 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 02:14:38,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:14:38,314 INFO L93 Difference]: Finished difference Result 66661 states and 96420 transitions. [2022-11-03 02:14:38,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:14:38,323 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) Word has length 395 [2022-11-03 02:14:38,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:14:38,584 INFO L225 Difference]: With dead ends: 66661 [2022-11-03 02:14:38,584 INFO L226 Difference]: Without dead ends: 41055 [2022-11-03 02:14:38,707 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 02:14:38,708 INFO L413 NwaCegarLoop]: 5815 mSDtfsCounter, 4707 mSDsluCounter, 4943 mSDsCounter, 0 mSdLazyCounter, 1318 mSolverCounterSat, 13 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4713 SdHoareTripleChecker+Valid, 10167 SdHoareTripleChecker+Invalid, 1334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1318 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:14:38,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4713 Valid, 10167 Invalid, 1334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1318 Invalid, 3 Unknown, 0 Unchecked, 10.7s Time] [2022-11-03 02:14:38,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41055 states. [2022-11-03 02:14:41,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41055 to 40992. [2022-11-03 02:14:41,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40992 states, 23326 states have (on average 1.2819171739689617) internal successors, (29902), 24337 states have internal predecessors, (29902), 14666 states have call successors, (14666), 3023 states have call predecessors, (14666), 2997 states have return successors, (14703), 14262 states have call predecessors, (14703), 14662 states have call successors, (14703) [2022-11-03 02:14:41,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40992 states to 40992 states and 59271 transitions. [2022-11-03 02:14:41,867 INFO L78 Accepts]: Start accepts. Automaton has 40992 states and 59271 transitions. Word has length 395 [2022-11-03 02:14:41,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:14:41,868 INFO L495 AbstractCegarLoop]: Abstraction has 40992 states and 59271 transitions. [2022-11-03 02:14:41,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2022-11-03 02:14:41,868 INFO L276 IsEmpty]: Start isEmpty. Operand 40992 states and 59271 transitions. [2022-11-03 02:14:41,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2022-11-03 02:14:41,880 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:14:41,881 INFO L195 NwaCegarLoop]: trace histogram [37, 33, 33, 33, 33, 33, 33, 4, 4, 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] [2022-11-03 02:14:41,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:14:41,882 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 02:14:41,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:14:41,882 INFO L85 PathProgramCache]: Analyzing trace with hash 155059220, now seen corresponding path program 1 times [2022-11-03 02:14:41,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:14:41,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885486561] [2022-11-03 02:14:41,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:14:41,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:14:42,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:14:44,084 INFO L134 CoverageAnalysis]: Checked inductivity of 4529 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4529 trivial. 0 not checked. [2022-11-03 02:14:44,084 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:14:44,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885486561] [2022-11-03 02:14:44,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885486561] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:14:44,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:14:44,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:14:44,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267097427] [2022-11-03 02:14:44,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:14:44,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:14:44,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:14:44,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:14:44,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:14:44,088 INFO L87 Difference]: Start difference. First operand 40992 states and 59271 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2022-11-03 02:14:49,824 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 02:14:54,871 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 02:14:55,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:14:55,326 INFO L93 Difference]: Finished difference Result 41323 states and 59564 transitions. [2022-11-03 02:14:55,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:14:55,327 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 399 [2022-11-03 02:14:55,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:14:55,724 INFO L225 Difference]: With dead ends: 41323 [2022-11-03 02:14:55,725 INFO L226 Difference]: Without dead ends: 41321 [2022-11-03 02:14:55,747 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 02:14:55,749 INFO L413 NwaCegarLoop]: 4396 mSDtfsCounter, 4827 mSDsluCounter, 10070 mSDsCounter, 0 mSdLazyCounter, 1851 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4843 SdHoareTripleChecker+Valid, 13244 SdHoareTripleChecker+Invalid, 1854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1851 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:14:55,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4843 Valid, 13244 Invalid, 1854 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1851 Invalid, 1 Unknown, 0 Unchecked, 9.5s Time] [2022-11-03 02:14:55,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41321 states. [2022-11-03 02:14:58,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41321 to 41319. [2022-11-03 02:14:58,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41319 states, 23517 states have (on average 1.2809456988561465) internal successors, (30124), 24544 states have internal predecessors, (30124), 14700 states have call successors, (14700), 3125 states have call predecessors, (14700), 3099 states have return successors, (14737), 14296 states have call predecessors, (14737), 14696 states have call successors, (14737) [2022-11-03 02:14:59,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41319 states to 41319 states and 59561 transitions. [2022-11-03 02:14:59,104 INFO L78 Accepts]: Start accepts. Automaton has 41319 states and 59561 transitions. Word has length 399 [2022-11-03 02:14:59,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:14:59,105 INFO L495 AbstractCegarLoop]: Abstraction has 41319 states and 59561 transitions. [2022-11-03 02:14:59,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2022-11-03 02:14:59,106 INFO L276 IsEmpty]: Start isEmpty. Operand 41319 states and 59561 transitions. [2022-11-03 02:14:59,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2022-11-03 02:14:59,119 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:14:59,120 INFO L195 NwaCegarLoop]: trace histogram [37, 33, 33, 33, 33, 33, 33, 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] [2022-11-03 02:14:59,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:14:59,120 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 02:14:59,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:14:59,121 INFO L85 PathProgramCache]: Analyzing trace with hash -652159693, now seen corresponding path program 1 times [2022-11-03 02:14:59,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:14:59,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290133874] [2022-11-03 02:14:59,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:14:59,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:14:59,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:15:01,326 INFO L134 CoverageAnalysis]: Checked inductivity of 4536 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4534 trivial. 0 not checked. [2022-11-03 02:15:01,326 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:15:01,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290133874] [2022-11-03 02:15:01,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290133874] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:15:01,327 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:15:01,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:15:01,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241389535] [2022-11-03 02:15:01,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:15:01,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:15:01,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:15:01,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:15:01,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:15:01,330 INFO L87 Difference]: Start difference. First operand 41319 states and 59561 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2022-11-03 02:15:08,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:15:08,454 INFO L93 Difference]: Finished difference Result 41325 states and 59566 transitions. [2022-11-03 02:15:08,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:15:08,454 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) Word has length 407 [2022-11-03 02:15:08,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:15:08,682 INFO L225 Difference]: With dead ends: 41325 [2022-11-03 02:15:08,682 INFO L226 Difference]: Without dead ends: 41323 [2022-11-03 02:15:08,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:15:08,705 INFO L413 NwaCegarLoop]: 4377 mSDtfsCounter, 4875 mSDsluCounter, 9944 mSDsCounter, 0 mSdLazyCounter, 1840 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4888 SdHoareTripleChecker+Valid, 13109 SdHoareTripleChecker+Invalid, 1841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:15:08,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4888 Valid, 13109 Invalid, 1841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1840 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-03 02:15:08,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41323 states. [2022-11-03 02:15:11,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41323 to 41323. [2022-11-03 02:15:11,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41323 states, 23520 states have (on average 1.2809098639455783) internal successors, (30127), 24547 states have internal predecessors, (30127), 14700 states have call successors, (14700), 3126 states have call predecessors, (14700), 3100 states have return successors, (14737), 14296 states have call predecessors, (14737), 14696 states have call successors, (14737) [2022-11-03 02:15:12,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41323 states to 41323 states and 59564 transitions. [2022-11-03 02:15:12,060 INFO L78 Accepts]: Start accepts. Automaton has 41323 states and 59564 transitions. Word has length 407 [2022-11-03 02:15:12,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:15:12,061 INFO L495 AbstractCegarLoop]: Abstraction has 41323 states and 59564 transitions. [2022-11-03 02:15:12,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2022-11-03 02:15:12,061 INFO L276 IsEmpty]: Start isEmpty. Operand 41323 states and 59564 transitions. [2022-11-03 02:15:12,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2022-11-03 02:15:12,069 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:15:12,070 INFO L195 NwaCegarLoop]: trace histogram [37, 33, 33, 33, 33, 33, 33, 5, 5, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:15:12,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 02:15:12,070 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 02:15:12,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:15:12,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1008919790, now seen corresponding path program 1 times [2022-11-03 02:15:12,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:15:12,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567706806] [2022-11-03 02:15:12,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:15:12,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:15:12,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:15:13,938 INFO L134 CoverageAnalysis]: Checked inductivity of 4542 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4538 trivial. 0 not checked. [2022-11-03 02:15:13,939 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:15:13,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567706806] [2022-11-03 02:15:13,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567706806] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:15:13,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:15:13,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:15:13,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532307870] [2022-11-03 02:15:13,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:15:13,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:15:13,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:15:13,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:15:13,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:15:13,943 INFO L87 Difference]: Start difference. First operand 41323 states and 59564 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (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 02:15:19,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:20,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:23,637 WARN L539 Checker$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 02:15:27,297 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 02:15:27,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:15:27,942 INFO L93 Difference]: Finished difference Result 42377 states and 60945 transitions. [2022-11-03 02:15:27,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:15:27,943 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (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 412 [2022-11-03 02:15:27,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:15:28,235 INFO L225 Difference]: With dead ends: 42377 [2022-11-03 02:15:28,236 INFO L226 Difference]: Without dead ends: 42375 [2022-11-03 02:15:28,258 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 02:15:28,259 INFO L413 NwaCegarLoop]: 4421 mSDtfsCounter, 4800 mSDsluCounter, 10272 mSDsCounter, 0 mSdLazyCounter, 1858 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4816 SdHoareTripleChecker+Valid, 13461 SdHoareTripleChecker+Invalid, 1861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1858 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:15:28,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4816 Valid, 13461 Invalid, 1861 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1858 Invalid, 2 Unknown, 0 Unchecked, 11.8s Time] [2022-11-03 02:15:28,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42375 states. [2022-11-03 02:15:31,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42375 to 42373. [2022-11-03 02:15:31,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42373 states, 24090 states have (on average 1.2785803237858033) internal successors, (30801), 25141 states have internal predecessors, (30801), 15044 states have call successors, (15044), 3263 states have call predecessors, (15044), 3236 states have return successors, (15095), 14631 states have call predecessors, (15095), 15040 states have call successors, (15095) [2022-11-03 02:15:31,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42373 states to 42373 states and 60940 transitions. [2022-11-03 02:15:31,349 INFO L78 Accepts]: Start accepts. Automaton has 42373 states and 60940 transitions. Word has length 412 [2022-11-03 02:15:31,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:15:31,350 INFO L495 AbstractCegarLoop]: Abstraction has 42373 states and 60940 transitions. [2022-11-03 02:15:31,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (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 02:15:31,350 INFO L276 IsEmpty]: Start isEmpty. Operand 42373 states and 60940 transitions. [2022-11-03 02:15:31,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2022-11-03 02:15:31,361 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:15:31,361 INFO L195 NwaCegarLoop]: trace histogram [37, 33, 33, 33, 33, 33, 33, 4, 4, 4, 3, 3, 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] [2022-11-03 02:15:31,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 02:15:31,362 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 02:15:31,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:15:31,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1655580337, now seen corresponding path program 1 times [2022-11-03 02:15:31,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:15:31,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247597536] [2022-11-03 02:15:31,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:15:31,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:15:31,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:15:33,030 INFO L134 CoverageAnalysis]: Checked inductivity of 4547 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4541 trivial. 0 not checked. [2022-11-03 02:15:33,030 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:15:33,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247597536] [2022-11-03 02:15:33,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247597536] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:15:33,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:15:33,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:15:33,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111320828] [2022-11-03 02:15:33,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:15:33,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:15:33,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:15:33,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:15:33,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:15:33,034 INFO L87 Difference]: Start difference. First operand 42373 states and 60940 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2022-11-03 02:15:43,132 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 02:15:43,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:15:43,855 INFO L93 Difference]: Finished difference Result 42379 states and 60945 transitions. [2022-11-03 02:15:43,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:15:43,856 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) Word has length 414 [2022-11-03 02:15:43,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:15:44,101 INFO L225 Difference]: With dead ends: 42379 [2022-11-03 02:15:44,101 INFO L226 Difference]: Without dead ends: 42377 [2022-11-03 02:15:44,124 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 02:15:44,128 INFO L413 NwaCegarLoop]: 4378 mSDtfsCounter, 4840 mSDsluCounter, 9983 mSDsCounter, 0 mSdLazyCounter, 1841 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4853 SdHoareTripleChecker+Valid, 13147 SdHoareTripleChecker+Invalid, 1843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1841 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:15:44,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4853 Valid, 13147 Invalid, 1843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1841 Invalid, 1 Unknown, 0 Unchecked, 8.5s Time] [2022-11-03 02:15:44,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42377 states. [2022-11-03 02:15:47,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42377 to 42377. [2022-11-03 02:15:47,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42377 states, 24093 states have (on average 1.2785456356618106) internal successors, (30804), 25144 states have internal predecessors, (30804), 15044 states have call successors, (15044), 3264 states have call predecessors, (15044), 3237 states have return successors, (15095), 14631 states have call predecessors, (15095), 15040 states have call successors, (15095) [2022-11-03 02:15:47,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42377 states to 42377 states and 60943 transitions. [2022-11-03 02:15:47,531 INFO L78 Accepts]: Start accepts. Automaton has 42377 states and 60943 transitions. Word has length 414 [2022-11-03 02:15:47,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:15:47,533 INFO L495 AbstractCegarLoop]: Abstraction has 42377 states and 60943 transitions. [2022-11-03 02:15:47,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2022-11-03 02:15:47,533 INFO L276 IsEmpty]: Start isEmpty. Operand 42377 states and 60943 transitions. [2022-11-03 02:15:47,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2022-11-03 02:15:47,545 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:15:47,545 INFO L195 NwaCegarLoop]: trace histogram [37, 33, 33, 33, 33, 33, 33, 5, 5, 5, 4, 4, 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] [2022-11-03 02:15:47,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 02:15:47,546 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 02:15:47,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:15:47,546 INFO L85 PathProgramCache]: Analyzing trace with hash -2113645710, now seen corresponding path program 1 times [2022-11-03 02:15:47,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:15:47,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92064851] [2022-11-03 02:15:47,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:15:47,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:15:48,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:15:49,023 INFO L134 CoverageAnalysis]: Checked inductivity of 4566 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4558 trivial. 0 not checked. [2022-11-03 02:15:49,023 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:15:49,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92064851] [2022-11-03 02:15:49,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92064851] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:15:49,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:15:49,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:15:49,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954103865] [2022-11-03 02:15:49,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:15:49,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:15:49,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:15:49,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:15:49,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:15:49,026 INFO L87 Difference]: Start difference. First operand 42377 states and 60943 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (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 02:15:56,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:59,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:16:02,484 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 02:16:03,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:16:03,050 INFO L93 Difference]: Finished difference Result 42383 states and 60948 transitions. [2022-11-03 02:16:03,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:16:03,051 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (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 422 [2022-11-03 02:16:03,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:16:03,233 INFO L225 Difference]: With dead ends: 42383 [2022-11-03 02:16:03,234 INFO L226 Difference]: Without dead ends: 42381 [2022-11-03 02:16:03,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:16:03,256 INFO L413 NwaCegarLoop]: 4378 mSDtfsCounter, 4839 mSDsluCounter, 9983 mSDsCounter, 0 mSdLazyCounter, 1839 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4851 SdHoareTripleChecker+Valid, 13147 SdHoareTripleChecker+Invalid, 1843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1839 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:16:03,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4851 Valid, 13147 Invalid, 1843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1839 Invalid, 3 Unknown, 0 Unchecked, 11.8s Time] [2022-11-03 02:16:03,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42381 states. [2022-11-03 02:16:05,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42381 to 42381. [2022-11-03 02:16:05,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42381 states, 24096 states have (on average 1.2785109561752988) internal successors, (30807), 25147 states have internal predecessors, (30807), 15044 states have call successors, (15044), 3265 states have call predecessors, (15044), 3238 states have return successors, (15095), 14631 states have call predecessors, (15095), 15040 states have call successors, (15095) [2022-11-03 02:16:06,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42381 states to 42381 states and 60946 transitions. [2022-11-03 02:16:06,034 INFO L78 Accepts]: Start accepts. Automaton has 42381 states and 60946 transitions. Word has length 422 [2022-11-03 02:16:06,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:16:06,035 INFO L495 AbstractCegarLoop]: Abstraction has 42381 states and 60946 transitions. [2022-11-03 02:16:06,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (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 02:16:06,036 INFO L276 IsEmpty]: Start isEmpty. Operand 42381 states and 60946 transitions. [2022-11-03 02:16:06,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2022-11-03 02:16:06,045 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:16:06,046 INFO L195 NwaCegarLoop]: trace histogram [37, 33, 33, 33, 33, 33, 33, 6, 5, 5, 4, 4, 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] [2022-11-03 02:16:06,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-03 02:16:06,046 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 02:16:06,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:16:06,047 INFO L85 PathProgramCache]: Analyzing trace with hash -293110703, now seen corresponding path program 1 times [2022-11-03 02:16:06,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:16:06,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529611792] [2022-11-03 02:16:06,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:16:06,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:16:06,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:16:07,134 INFO L134 CoverageAnalysis]: Checked inductivity of 4579 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 4569 trivial. 0 not checked. [2022-11-03 02:16:07,135 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:16:07,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529611792] [2022-11-03 02:16:07,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529611792] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:16:07,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:16:07,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:16:07,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142253857] [2022-11-03 02:16:07,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:16:07,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:16:07,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:16:07,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:16:07,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:16:07,138 INFO L87 Difference]: Start difference. First operand 42381 states and 60946 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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 02:16:15,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:16:15,933 INFO L93 Difference]: Finished difference Result 42387 states and 60951 transitions. [2022-11-03 02:16:15,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:16:15,933 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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 424 [2022-11-03 02:16:15,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:16:16,126 INFO L225 Difference]: With dead ends: 42387 [2022-11-03 02:16:16,126 INFO L226 Difference]: Without dead ends: 42385 [2022-11-03 02:16:16,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:16:16,150 INFO L413 NwaCegarLoop]: 4377 mSDtfsCounter, 4876 mSDsluCounter, 9944 mSDsCounter, 0 mSdLazyCounter, 1840 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4885 SdHoareTripleChecker+Valid, 13109 SdHoareTripleChecker+Invalid, 1841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:16:16,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4885 Valid, 13109 Invalid, 1841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1840 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2022-11-03 02:16:16,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42385 states. [2022-11-03 02:16:18,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42385 to 42385. [2022-11-03 02:16:18,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42385 states, 24099 states have (on average 1.2784762853230425) internal successors, (30810), 25150 states have internal predecessors, (30810), 15044 states have call successors, (15044), 3266 states have call predecessors, (15044), 3239 states have return successors, (15095), 14631 states have call predecessors, (15095), 15040 states have call successors, (15095) [2022-11-03 02:16:19,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42385 states to 42385 states and 60949 transitions. [2022-11-03 02:16:19,129 INFO L78 Accepts]: Start accepts. Automaton has 42385 states and 60949 transitions. Word has length 424 [2022-11-03 02:16:19,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:16:19,129 INFO L495 AbstractCegarLoop]: Abstraction has 42385 states and 60949 transitions. [2022-11-03 02:16:19,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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 02:16:19,130 INFO L276 IsEmpty]: Start isEmpty. Operand 42385 states and 60949 transitions. [2022-11-03 02:16:19,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2022-11-03 02:16:19,142 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:16:19,143 INFO L195 NwaCegarLoop]: trace histogram [37, 33, 33, 33, 33, 33, 33, 7, 6, 6, 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] [2022-11-03 02:16:19,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-03 02:16:19,143 INFO L420 AbstractCegarLoop]: === Iteration 12 === 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 02:16:19,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:16:19,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1379595113, now seen corresponding path program 1 times [2022-11-03 02:16:19,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:16:19,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701202445] [2022-11-03 02:16:19,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:16:19,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:16:19,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat