./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3c82f5-6036-4f84-bce5-9237dc689d49/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3c82f5-6036-4f84-bce5-9237dc689d49/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3c82f5-6036-4f84-bce5-9237dc689d49/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3c82f5-6036-4f84-bce5-9237dc689d49/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3c82f5-6036-4f84-bce5-9237dc689d49/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3c82f5-6036-4f84-bce5-9237dc689d49/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3eabf9223369a4133b2add72c0b71a01ceb617c9bc4081cd5107bb51f78aed61 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 08:00:30,745 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:00:30,747 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:00:30,767 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:00:30,767 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:00:30,769 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:00:30,770 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:00:30,772 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:00:30,774 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:00:30,775 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:00:30,776 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:00:30,778 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:00:30,778 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:00:30,779 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:00:30,781 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:00:30,782 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:00:30,783 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:00:30,784 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:00:30,786 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:00:30,793 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:00:30,795 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:00:30,800 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:00:30,802 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:00:30,804 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:00:30,807 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:00:30,808 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:00:30,808 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:00:30,809 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:00:30,810 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:00:30,811 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:00:30,811 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:00:30,812 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:00:30,813 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:00:30,814 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:00:30,815 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:00:30,815 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:00:30,816 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:00:30,816 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:00:30,816 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:00:30,817 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:00:30,818 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:00:30,819 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3c82f5-6036-4f84-bce5-9237dc689d49/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 08:00:30,844 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:00:30,844 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:00:30,845 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:00:30,845 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:00:30,845 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:00:30,846 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:00:30,846 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:00:30,846 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:00:30,846 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:00:30,847 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:00:30,847 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:00:30,847 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:00:30,847 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:00:30,848 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:00:30,848 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:00:30,848 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:00:30,848 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:00:30,848 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:00:30,849 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:00:30,849 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:00:30,850 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:00:30,850 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:00:30,850 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:00:30,850 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:00:30,851 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:00:30,854 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:00:30,854 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:00:30,855 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:00:30,855 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:00:30,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:00:30,856 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:00:30,856 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:00:30,856 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:00:30,857 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:00:30,857 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:00:30,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:00:30,859 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:00:30,859 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:00:30,859 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_7a3c82f5-6036-4f84-bce5-9237dc689d49/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3c82f5-6036-4f84-bce5-9237dc689d49/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3eabf9223369a4133b2add72c0b71a01ceb617c9bc4081cd5107bb51f78aed61 [2022-11-19 08:00:31,163 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:00:31,202 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:00:31,205 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:00:31,207 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:00:31,208 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:00:31,209 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3c82f5-6036-4f84-bce5-9237dc689d49/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i [2022-11-19 08:00:31,302 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3c82f5-6036-4f84-bce5-9237dc689d49/bin/utaipan-I9t0OCRTmS/data/b348ae273/81c169a81ff742df9fda42478fa4fb46/FLAG499f24cc4 [2022-11-19 08:00:32,384 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:00:32,385 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3c82f5-6036-4f84-bce5-9237dc689d49/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i [2022-11-19 08:00:32,440 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3c82f5-6036-4f84-bce5-9237dc689d49/bin/utaipan-I9t0OCRTmS/data/b348ae273/81c169a81ff742df9fda42478fa4fb46/FLAG499f24cc4 [2022-11-19 08:00:32,730 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3c82f5-6036-4f84-bce5-9237dc689d49/bin/utaipan-I9t0OCRTmS/data/b348ae273/81c169a81ff742df9fda42478fa4fb46 [2022-11-19 08:00:32,733 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:00:32,735 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:00:32,737 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:00:32,737 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:00:32,741 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:00:32,742 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:00:32" (1/1) ... [2022-11-19 08:00:32,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7529c5b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:32, skipping insertion in model container [2022-11-19 08:00:32,744 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:00:32" (1/1) ... [2022-11-19 08:00:32,751 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:00:32,912 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:00:36,464 WARN L234 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_7a3c82f5-6036-4f84-bce5-9237dc689d49/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i[392538,392551] [2022-11-19 08:00:36,471 WARN L234 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_7a3c82f5-6036-4f84-bce5-9237dc689d49/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i[392707,392720] [2022-11-19 08:00:36,471 WARN L234 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_7a3c82f5-6036-4f84-bce5-9237dc689d49/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i[392874,392887] [2022-11-19 08:00:36,472 WARN L234 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_7a3c82f5-6036-4f84-bce5-9237dc689d49/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i[393042,393055] [2022-11-19 08:00:36,505 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:00:36,574 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:00:37,073 WARN L234 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_7a3c82f5-6036-4f84-bce5-9237dc689d49/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i[392538,392551] [2022-11-19 08:00:37,074 WARN L234 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_7a3c82f5-6036-4f84-bce5-9237dc689d49/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i[392707,392720] [2022-11-19 08:00:37,075 WARN L234 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_7a3c82f5-6036-4f84-bce5-9237dc689d49/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i[392874,392887] [2022-11-19 08:00:37,075 WARN L234 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_7a3c82f5-6036-4f84-bce5-9237dc689d49/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i[393042,393055] [2022-11-19 08:00:37,084 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:00:37,365 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:00:37,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:37 WrapperNode [2022-11-19 08:00:37,366 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:00:37,367 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:00:37,367 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:00:37,367 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:00:37,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:37" (1/1) ... [2022-11-19 08:00:37,510 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:37" (1/1) ... [2022-11-19 08:00:37,737 INFO L138 Inliner]: procedures = 549, calls = 2147, calls flagged for inlining = 287, calls inlined = 262, statements flattened = 6530 [2022-11-19 08:00:37,738 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:00:37,739 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:00:37,739 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:00:37,740 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:00:37,750 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:37" (1/1) ... [2022-11-19 08:00:37,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:37" (1/1) ... [2022-11-19 08:00:37,872 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:37" (1/1) ... [2022-11-19 08:00:37,878 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:37" (1/1) ... [2022-11-19 08:00:38,017 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:37" (1/1) ... [2022-11-19 08:00:38,056 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:37" (1/1) ... [2022-11-19 08:00:38,095 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:37" (1/1) ... [2022-11-19 08:00:38,127 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:37" (1/1) ... [2022-11-19 08:00:38,174 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:00:38,176 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:00:38,176 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:00:38,176 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:00:38,177 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:37" (1/1) ... [2022-11-19 08:00:38,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:00:38,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3c82f5-6036-4f84-bce5-9237dc689d49/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:00:38,215 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3c82f5-6036-4f84-bce5-9237dc689d49/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:00:38,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3c82f5-6036-4f84-bce5-9237dc689d49/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:00:38,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 08:00:38,261 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 08:00:38,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_94 [2022-11-19 08:00:38,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_94 [2022-11-19 08:00:38,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 08:00:38,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 08:00:38,262 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-19 08:00:38,262 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-19 08:00:38,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_76 [2022-11-19 08:00:38,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_76 [2022-11-19 08:00:38,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-19 08:00:38,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-19 08:00:38,263 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-19 08:00:38,264 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-19 08:00:38,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2022-11-19 08:00:38,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2022-11-19 08:00:38,264 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_mii_read [2022-11-19 08:00:38,264 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_mii_read [2022-11-19 08:00:38,265 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_resume [2022-11-19 08:00:38,265 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_resume [2022-11-19 08:00:38,265 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-19 08:00:38,265 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-19 08:00:38,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_mac_lock_of_smsc911x_data [2022-11-19 08:00:38,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_mac_lock_of_smsc911x_data [2022-11-19 08:00:38,266 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_drv_probe [2022-11-19 08:00:38,266 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_drv_probe [2022-11-19 08:00:38,266 INFO L130 BoogieDeclarations]: Found specification of procedure no_printk [2022-11-19 08:00:38,266 INFO L138 BoogieDeclarations]: Found implementation of procedure no_printk [2022-11-19 08:00:38,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-19 08:00:38,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-19 08:00:38,267 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-19 08:00:38,267 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-19 08:00:38,268 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-19 08:00:38,268 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-19 08:00:38,268 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-19 08:00:38,268 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-19 08:00:38,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-19 08:00:38,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-19 08:00:38,269 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-19 08:00:38,269 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-19 08:00:38,270 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_set_multicast_list [2022-11-19 08:00:38,270 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_set_multicast_list [2022-11-19 08:00:38,271 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_set_hw_mac_address [2022-11-19 08:00:38,271 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_set_hw_mac_address [2022-11-19 08:00:38,272 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write [2022-11-19 08:00:38,272 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write [2022-11-19 08:00:38,272 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2022-11-19 08:00:38,272 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2022-11-19 08:00:38,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:00:38,273 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-19 08:00:38,273 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-19 08:00:38,273 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_drv_remove [2022-11-19 08:00:38,273 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_drv_remove [2022-11-19 08:00:38,274 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_rx_multicast_update [2022-11-19 08:00:38,274 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_rx_multicast_update [2022-11-19 08:00:38,274 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-19 08:00:38,274 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-19 08:00:38,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_mac_lock_of_smsc911x_data [2022-11-19 08:00:38,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_mac_lock_of_smsc911x_data [2022-11-19 08:00:38,275 INFO L130 BoogieDeclarations]: Found specification of procedure clk_unprepare [2022-11-19 08:00:38,275 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_unprepare [2022-11-19 08:00:38,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 08:00:38,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-11-19 08:00:38,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-11-19 08:00:38,276 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-19 08:00:38,277 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-19 08:00:38,277 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_tx_writefifo [2022-11-19 08:00:38,278 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_tx_writefifo [2022-11-19 08:00:38,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 08:00:38,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-19 08:00:38,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-19 08:00:38,278 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_irqhandler [2022-11-19 08:00:38,278 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_irqhandler [2022-11-19 08:00:38,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 08:00:38,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 08:00:38,279 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 08:00:38,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-19 08:00:38,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-19 08:00:38,280 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_disable_resources [2022-11-19 08:00:38,280 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_disable_resources [2022-11-19 08:00:38,281 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_rx_get_rxstatus [2022-11-19 08:00:38,281 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_rx_get_rxstatus [2022-11-19 08:00:38,282 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc911x_reg_read [2022-11-19 08:00:38,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc911x_reg_read [2022-11-19 08:00:38,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-19 08:00:38,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-19 08:00:38,283 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_ethtool_getregslen [2022-11-19 08:00:38,284 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_ethtool_getregslen [2022-11-19 08:00:38,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 08:00:38,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-19 08:00:38,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-19 08:00:38,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-19 08:00:38,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-19 08:00:38,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-19 08:00:38,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-19 08:00:38,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-11-19 08:00:38,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-11-19 08:00:38,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:00:38,286 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-19 08:00:38,286 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-19 08:00:38,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-19 08:00:38,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-19 08:00:38,287 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-19 08:00:38,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-19 08:00:38,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 08:00:38,290 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 08:00:38,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 08:00:38,290 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-19 08:00:38,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-19 08:00:38,291 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_mii_write [2022-11-19 08:00:38,291 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_mii_write [2022-11-19 08:00:38,291 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_mac_complete [2022-11-19 08:00:38,291 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_mac_complete [2022-11-19 08:00:38,291 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2022-11-19 08:00:38,291 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2022-11-19 08:00:38,292 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-19 08:00:38,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-19 08:00:38,292 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-19 08:00:38,292 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-19 08:00:38,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-19 08:00:38,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-19 08:00:38,292 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32_rep [2022-11-19 08:00:38,292 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32_rep [2022-11-19 08:00:38,293 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-11-19 08:00:38,293 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-11-19 08:00:38,293 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource_byname [2022-11-19 08:00:38,293 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource_byname [2022-11-19 08:00:38,293 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-19 08:00:38,293 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-19 08:00:38,293 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-19 08:00:38,293 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-19 08:00:38,294 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2022-11-19 08:00:38,294 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2022-11-19 08:00:38,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:00:38,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:00:38,294 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-19 08:00:38,294 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-19 08:00:38,294 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-19 08:00:38,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-19 08:00:38,294 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_tx_get_txstatus [2022-11-19 08:00:38,295 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_tx_get_txstatus [2022-11-19 08:00:38,295 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-19 08:00:38,295 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-19 08:00:38,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_locked_mac_lock_of_smsc911x_data [2022-11-19 08:00:38,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_locked_mac_lock_of_smsc911x_data [2022-11-19 08:00:38,295 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2022-11-19 08:00:38,295 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2022-11-19 08:00:38,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 08:00:38,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 08:00:38,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 08:00:38,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 08:00:38,296 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_rx_readfifo [2022-11-19 08:00:38,296 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_rx_readfifo [2022-11-19 08:00:38,296 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_open [2022-11-19 08:00:38,296 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_open [2022-11-19 08:00:38,296 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2022-11-19 08:00:38,297 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2022-11-19 08:00:38,297 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_ethtool_get_eeprom_len [2022-11-19 08:00:38,297 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_ethtool_get_eeprom_len [2022-11-19 08:00:38,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-19 08:00:38,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-19 08:00:38,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_dev_lock_of_smsc911x_data [2022-11-19 08:00:38,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_dev_lock_of_smsc911x_data [2022-11-19 08:00:38,298 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_rx_readfifo_shift [2022-11-19 08:00:38,298 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_rx_readfifo_shift [2022-11-19 08:00:38,298 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_suspend [2022-11-19 08:00:38,298 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_suspend [2022-11-19 08:00:38,298 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_read_mac_address [2022-11-19 08:00:38,298 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_read_mac_address [2022-11-19 08:00:38,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_93 [2022-11-19 08:00:38,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_93 [2022-11-19 08:00:38,299 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_mac_write [2022-11-19 08:00:38,299 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_mac_write [2022-11-19 08:00:38,299 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read [2022-11-19 08:00:38,299 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read [2022-11-19 08:00:38,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 08:00:38,299 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 08:00:38,300 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-19 08:00:38,300 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-19 08:00:38,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2022-11-19 08:00:38,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2022-11-19 08:00:38,300 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc911x_reg_write [2022-11-19 08:00:38,300 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc911x_reg_write [2022-11-19 08:00:38,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:00:38,301 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-19 08:00:38,301 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-19 08:00:38,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 08:00:38,301 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_reg_write [2022-11-19 08:00:38,301 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_reg_write [2022-11-19 08:00:38,301 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_ethtool_nwayreset [2022-11-19 08:00:38,301 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_ethtool_nwayreset [2022-11-19 08:00:38,302 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_free_resources [2022-11-19 08:00:38,302 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_free_resources [2022-11-19 08:00:38,302 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_disable_irq_chip [2022-11-19 08:00:38,302 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_disable_irq_chip [2022-11-19 08:00:38,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 08:00:38,302 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_eeprom_send_cmd [2022-11-19 08:00:38,302 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_eeprom_send_cmd [2022-11-19 08:00:38,303 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-19 08:00:38,303 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-19 08:00:38,303 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_phy_adjust_link [2022-11-19 08:00:38,303 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_phy_adjust_link [2022-11-19 08:00:38,303 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_reg_read [2022-11-19 08:00:38,303 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_reg_read [2022-11-19 08:00:38,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-19 08:00:38,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-19 08:00:38,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-19 08:00:38,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-19 08:00:38,304 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_tx_update_txcounters [2022-11-19 08:00:38,304 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_tx_update_txcounters [2022-11-19 08:00:38,304 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc911x_reg_read_shift [2022-11-19 08:00:38,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc911x_reg_read_shift [2022-11-19 08:00:38,305 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-19 08:00:38,305 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-19 08:00:38,305 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc911x_reg_write_shift [2022-11-19 08:00:38,305 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc911x_reg_write_shift [2022-11-19 08:00:38,305 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-19 08:00:38,305 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-19 08:00:38,305 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-19 08:00:38,305 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-19 08:00:38,306 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-19 08:00:38,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-19 08:00:38,306 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-19 08:00:38,306 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-19 08:00:38,306 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_phy_enable_external [2022-11-19 08:00:38,306 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_phy_enable_external [2022-11-19 08:00:38,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:00:38,307 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_mac_read [2022-11-19 08:00:38,307 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_mac_read [2022-11-19 08:00:38,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 08:00:38,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 08:00:38,307 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-19 08:00:38,307 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-19 08:00:38,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_smsc911x_cleanup_module_14_2 [2022-11-19 08:00:38,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_smsc911x_cleanup_module_14_2 [2022-11-19 08:00:38,308 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_soft_reset [2022-11-19 08:00:38,308 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_soft_reset [2022-11-19 08:00:38,308 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_eeprom_enable_access [2022-11-19 08:00:38,308 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_eeprom_enable_access [2022-11-19 08:00:38,308 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32_rep [2022-11-19 08:00:38,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32_rep [2022-11-19 08:00:38,308 INFO L130 BoogieDeclarations]: Found specification of procedure spin_is_locked [2022-11-19 08:00:38,309 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_is_locked [2022-11-19 08:00:38,309 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_stop [2022-11-19 08:00:38,309 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_stop [2022-11-19 08:00:38,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-19 08:00:38,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-19 08:00:38,309 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_tx_writefifo_shift [2022-11-19 08:00:38,309 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_tx_writefifo_shift [2022-11-19 08:00:38,309 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-11-19 08:00:38,310 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-11-19 08:00:38,310 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-19 08:00:38,310 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-19 08:00:38,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:00:38,310 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2022-11-19 08:00:38,310 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2022-11-19 08:00:38,310 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-19 08:00:38,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-19 08:00:38,311 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-19 08:00:38,311 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-19 08:00:39,299 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:00:39,303 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:00:39,871 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 08:00:43,923 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-19 08:00:44,114 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:00:46,066 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:00:46,067 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-19 08:00:46,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:00:46 BoogieIcfgContainer [2022-11-19 08:00:46,074 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:00:46,079 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:00:46,079 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:00:46,083 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:00:46,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:00:32" (1/3) ... [2022-11-19 08:00:46,084 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62fdd451 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:00:46, skipping insertion in model container [2022-11-19 08:00:46,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:37" (2/3) ... [2022-11-19 08:00:46,085 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62fdd451 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:00:46, skipping insertion in model container [2022-11-19 08:00:46,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:00:46" (3/3) ... [2022-11-19 08:00:46,087 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i [2022-11-19 08:00:46,110 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:00:46,111 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-19 08:00:46,251 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:00:46,260 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;@53967013, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:00:46,261 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-19 08:00:46,276 INFO L276 IsEmpty]: Start isEmpty. Operand has 2144 states, 1255 states have (on average 1.3091633466135457) internal successors, (1643), 1292 states have internal predecessors, (1643), 767 states have call successors, (767), 122 states have call predecessors, (767), 121 states have return successors, (758), 749 states have call predecessors, (758), 758 states have call successors, (758) [2022-11-19 08:00:46,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-11-19 08:00:46,310 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:00:46,311 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:00:46,311 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)] === [2022-11-19 08:00:46,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:00:46,317 INFO L85 PathProgramCache]: Analyzing trace with hash 41773924, now seen corresponding path program 1 times [2022-11-19 08:00:46,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:00:46,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994295327] [2022-11-19 08:00:46,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:00:46,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:00:46,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:00:47,414 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2022-11-19 08:00:47,415 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:00:47,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994295327] [2022-11-19 08:00:47,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994295327] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:00:47,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:00:47,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:00:47,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499689964] [2022-11-19 08:00:47,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:00:47,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:00:47,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:00:47,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:00:47,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:00:47,477 INFO L87 Difference]: Start difference. First operand has 2144 states, 1255 states have (on average 1.3091633466135457) internal successors, (1643), 1292 states have internal predecessors, (1643), 767 states have call successors, (767), 122 states have call predecessors, (767), 121 states have return successors, (758), 749 states have call predecessors, (758), 758 states have call successors, (758) Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-19 08:00:49,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:00:49,722 INFO L93 Difference]: Finished difference Result 6258 states and 9822 transitions. [2022-11-19 08:00:49,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:00:49,725 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 211 [2022-11-19 08:00:49,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:00:49,774 INFO L225 Difference]: With dead ends: 6258 [2022-11-19 08:00:49,774 INFO L226 Difference]: Without dead ends: 4140 [2022-11-19 08:00:49,805 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 [2022-11-19 08:00:49,808 INFO L413 NwaCegarLoop]: 3461 mSDtfsCounter, 2996 mSDsluCounter, 2717 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2996 SdHoareTripleChecker+Valid, 6178 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:00:49,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2996 Valid, 6178 Invalid, 799 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 792 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-19 08:00:49,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4140 states. [2022-11-19 08:00:50,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4140 to 4136. [2022-11-19 08:00:50,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4136 states, 2435 states have (on average 1.2985626283367557) internal successors, (3162), 2508 states have internal predecessors, (3162), 1460 states have call successors, (1460), 239 states have call predecessors, (1460), 238 states have return successors, (1456), 1438 states have call predecessors, (1456), 1456 states have call successors, (1456) [2022-11-19 08:00:50,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4136 states to 4136 states and 6078 transitions. [2022-11-19 08:00:50,220 INFO L78 Accepts]: Start accepts. Automaton has 4136 states and 6078 transitions. Word has length 211 [2022-11-19 08:00:50,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:00:50,225 INFO L495 AbstractCegarLoop]: Abstraction has 4136 states and 6078 transitions. [2022-11-19 08:00:50,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-19 08:00:50,225 INFO L276 IsEmpty]: Start isEmpty. Operand 4136 states and 6078 transitions. [2022-11-19 08:00:50,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-11-19 08:00:50,244 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:00:50,245 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:00:50,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:00:50,246 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)] === [2022-11-19 08:00:50,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:00:50,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1602065594, now seen corresponding path program 1 times [2022-11-19 08:00:50,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:00:50,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173448239] [2022-11-19 08:00:50,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:00:50,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:00:50,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:00:50,578 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2022-11-19 08:00:50,578 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:00:50,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173448239] [2022-11-19 08:00:50,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173448239] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:00:50,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:00:50,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:00:50,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280301968] [2022-11-19 08:00:50,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:00:50,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:00:50,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:00:50,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:00:50,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:00:50,582 INFO L87 Difference]: Start difference. First operand 4136 states and 6078 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-19 08:00:52,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:00:52,842 INFO L93 Difference]: Finished difference Result 12266 states and 18118 transitions. [2022-11-19 08:00:52,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:00:52,843 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 213 [2022-11-19 08:00:52,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:00:52,909 INFO L225 Difference]: With dead ends: 12266 [2022-11-19 08:00:52,909 INFO L226 Difference]: Without dead ends: 8169 [2022-11-19 08:00:52,941 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 [2022-11-19 08:00:52,942 INFO L413 NwaCegarLoop]: 3741 mSDtfsCounter, 3059 mSDsluCounter, 2710 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3059 SdHoareTripleChecker+Valid, 6451 SdHoareTripleChecker+Invalid, 812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:00:52,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3059 Valid, 6451 Invalid, 812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 806 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-19 08:00:52,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8169 states. [2022-11-19 08:00:53,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8169 to 8139. [2022-11-19 08:00:53,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8139 states, 4806 states have (on average 1.3006658343736996) internal successors, (6251), 4958 states have internal predecessors, (6251), 2859 states have call successors, (2859), 476 states have call predecessors, (2859), 471 states have return successors, (2943), 2804 states have call predecessors, (2943), 2855 states have call successors, (2943) [2022-11-19 08:00:53,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8139 states to 8139 states and 12053 transitions. [2022-11-19 08:00:53,660 INFO L78 Accepts]: Start accepts. Automaton has 8139 states and 12053 transitions. Word has length 213 [2022-11-19 08:00:53,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:00:53,664 INFO L495 AbstractCegarLoop]: Abstraction has 8139 states and 12053 transitions. [2022-11-19 08:00:53,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-19 08:00:53,667 INFO L276 IsEmpty]: Start isEmpty. Operand 8139 states and 12053 transitions. [2022-11-19 08:00:53,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-11-19 08:00:53,673 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:00:53,674 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:00:53,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:00:53,674 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)] === [2022-11-19 08:00:53,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:00:53,684 INFO L85 PathProgramCache]: Analyzing trace with hash 224752533, now seen corresponding path program 1 times [2022-11-19 08:00:53,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:00:53,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715451671] [2022-11-19 08:00:53,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:00:53,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:00:53,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:00:54,074 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2022-11-19 08:00:54,075 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:00:54,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715451671] [2022-11-19 08:00:54,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715451671] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:00:54,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:00:54,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:00:54,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872198784] [2022-11-19 08:00:54,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:00:54,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:00:54,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:00:54,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:00:54,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:00:54,078 INFO L87 Difference]: Start difference. First operand 8139 states and 12053 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-19 08:00:56,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:00:56,817 INFO L93 Difference]: Finished difference Result 23475 states and 34663 transitions. [2022-11-19 08:00:56,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:00:56,818 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 220 [2022-11-19 08:00:56,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:00:56,956 INFO L225 Difference]: With dead ends: 23475 [2022-11-19 08:00:56,957 INFO L226 Difference]: Without dead ends: 15375 [2022-11-19 08:00:57,030 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 [2022-11-19 08:00:57,031 INFO L413 NwaCegarLoop]: 3903 mSDtfsCounter, 2753 mSDsluCounter, 2672 mSDsCounter, 0 mSdLazyCounter, 913 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2753 SdHoareTripleChecker+Valid, 6575 SdHoareTripleChecker+Invalid, 942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:00:57,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2753 Valid, 6575 Invalid, 942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 913 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-19 08:00:57,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15375 states. [2022-11-19 08:00:58,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15375 to 15341. [2022-11-19 08:00:58,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15341 states, 9014 states have (on average 1.2885511426669625) internal successors, (11615), 9308 states have internal predecessors, (11615), 5405 states have call successors, (5405), 928 states have call predecessors, (5405), 919 states have return successors, (5493), 5298 states have call predecessors, (5493), 5401 states have call successors, (5493) [2022-11-19 08:00:58,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15341 states to 15341 states and 22513 transitions. [2022-11-19 08:00:58,410 INFO L78 Accepts]: Start accepts. Automaton has 15341 states and 22513 transitions. Word has length 220 [2022-11-19 08:00:58,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:00:58,412 INFO L495 AbstractCegarLoop]: Abstraction has 15341 states and 22513 transitions. [2022-11-19 08:00:58,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-19 08:00:58,413 INFO L276 IsEmpty]: Start isEmpty. Operand 15341 states and 22513 transitions. [2022-11-19 08:00:58,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-11-19 08:00:58,421 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:00:58,421 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:00:58,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 08:00:58,421 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)] === [2022-11-19 08:00:58,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:00:58,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1717386222, now seen corresponding path program 1 times [2022-11-19 08:00:58,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:00:58,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546149788] [2022-11-19 08:00:58,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:00:58,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:00:58,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:00:58,755 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2022-11-19 08:00:58,756 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:00:58,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546149788] [2022-11-19 08:00:58,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546149788] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:00:58,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:00:58,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:00:58,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715894285] [2022-11-19 08:00:58,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:00:58,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:00:58,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:00:58,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:00:58,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:00:58,759 INFO L87 Difference]: Start difference. First operand 15341 states and 22513 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-19 08:01:01,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:01:01,924 INFO L93 Difference]: Finished difference Result 43495 states and 63905 transitions. [2022-11-19 08:01:01,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:01:01,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 219 [2022-11-19 08:01:01,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:01:02,135 INFO L225 Difference]: With dead ends: 43495 [2022-11-19 08:01:02,135 INFO L226 Difference]: Without dead ends: 28193 [2022-11-19 08:01:02,223 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 [2022-11-19 08:01:02,224 INFO L413 NwaCegarLoop]: 3471 mSDtfsCounter, 2688 mSDsluCounter, 2671 mSDsCounter, 0 mSdLazyCounter, 821 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2688 SdHoareTripleChecker+Valid, 6142 SdHoareTripleChecker+Invalid, 828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-19 08:01:02,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2688 Valid, 6142 Invalid, 828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 821 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-19 08:01:02,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28193 states. [2022-11-19 08:01:04,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28193 to 28151. [2022-11-19 08:01:04,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28151 states, 16498 states have (on average 1.2792459692083888) internal successors, (21105), 17064 states have internal predecessors, (21105), 9899 states have call successors, (9899), 1780 states have call predecessors, (9899), 1751 states have return successors, (10355), 9656 states have call predecessors, (10355), 9895 states have call successors, (10355) [2022-11-19 08:01:04,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28151 states to 28151 states and 41359 transitions. [2022-11-19 08:01:04,751 INFO L78 Accepts]: Start accepts. Automaton has 28151 states and 41359 transitions. Word has length 219 [2022-11-19 08:01:04,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:01:04,752 INFO L495 AbstractCegarLoop]: Abstraction has 28151 states and 41359 transitions. [2022-11-19 08:01:04,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-19 08:01:04,752 INFO L276 IsEmpty]: Start isEmpty. Operand 28151 states and 41359 transitions. [2022-11-19 08:01:04,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-11-19 08:01:04,759 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:01:04,759 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:01:04,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 08:01:04,759 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)] === [2022-11-19 08:01:04,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:01:04,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1738273049, now seen corresponding path program 1 times [2022-11-19 08:01:04,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:01:04,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392213540] [2022-11-19 08:01:04,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:01:04,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:01:04,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:01:05,231 INFO L134 CoverageAnalysis]: Checked inductivity of 1409 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1409 trivial. 0 not checked. [2022-11-19 08:01:05,231 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:01:05,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392213540] [2022-11-19 08:01:05,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392213540] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:01:05,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:01:05,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:01:05,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157542762] [2022-11-19 08:01:05,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:01:05,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:01:05,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:01:05,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:01:05,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:01:05,234 INFO L87 Difference]: Start difference. First operand 28151 states and 41359 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-19 08:01:09,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:01:09,336 INFO L93 Difference]: Finished difference Result 70120 states and 102956 transitions. [2022-11-19 08:01:09,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:01:09,336 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 234 [2022-11-19 08:01:09,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:01:09,793 INFO L225 Difference]: With dead ends: 70120 [2022-11-19 08:01:09,793 INFO L226 Difference]: Without dead ends: 42008 [2022-11-19 08:01:10,000 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 [2022-11-19 08:01:10,002 INFO L413 NwaCegarLoop]: 3501 mSDtfsCounter, 2995 mSDsluCounter, 2707 mSDsCounter, 0 mSdLazyCounter, 803 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2995 SdHoareTripleChecker+Valid, 6208 SdHoareTripleChecker+Invalid, 810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:01:10,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2995 Valid, 6208 Invalid, 810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 803 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-19 08:01:10,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42008 states. [2022-11-19 08:01:13,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42008 to 41966. [2022-11-19 08:01:13,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41966 states, 24578 states have (on average 1.2765888192692652) internal successors, (31376), 25454 states have internal predecessors, (31376), 14731 states have call successors, (14731), 2697 states have call predecessors, (14731), 2654 states have return successors, (15417), 14339 states have call predecessors, (15417), 14727 states have call successors, (15417) [2022-11-19 08:01:13,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41966 states to 41966 states and 61524 transitions. [2022-11-19 08:01:13,785 INFO L78 Accepts]: Start accepts. Automaton has 41966 states and 61524 transitions. Word has length 234 [2022-11-19 08:01:13,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:01:13,788 INFO L495 AbstractCegarLoop]: Abstraction has 41966 states and 61524 transitions. [2022-11-19 08:01:13,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-19 08:01:13,789 INFO L276 IsEmpty]: Start isEmpty. Operand 41966 states and 61524 transitions. [2022-11-19 08:01:13,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-11-19 08:01:13,794 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:01:13,794 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:01:13,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 08:01:13,798 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:01:13,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:01:13,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1009113725, now seen corresponding path program 1 times [2022-11-19 08:01:13,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:01:13,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860923824] [2022-11-19 08:01:13,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:01:13,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:01:13,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:01:14,077 INFO L134 CoverageAnalysis]: Checked inductivity of 1409 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1409 trivial. 0 not checked. [2022-11-19 08:01:14,077 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:01:14,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860923824] [2022-11-19 08:01:14,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860923824] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:01:14,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:01:14,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:01:14,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090896896] [2022-11-19 08:01:14,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:01:14,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:01:14,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:01:14,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:01:14,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:01:14,081 INFO L87 Difference]: Start difference. First operand 41966 states and 61524 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-19 08:01:19,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:01:19,779 INFO L93 Difference]: Finished difference Result 111421 states and 163299 transitions. [2022-11-19 08:01:19,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:01:19,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 233 [2022-11-19 08:01:19,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:01:20,263 INFO L225 Difference]: With dead ends: 111421 [2022-11-19 08:01:20,263 INFO L226 Difference]: Without dead ends: 69494 [2022-11-19 08:01:20,501 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 [2022-11-19 08:01:20,502 INFO L413 NwaCegarLoop]: 3582 mSDtfsCounter, 2996 mSDsluCounter, 2707 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2996 SdHoareTripleChecker+Valid, 6289 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-19 08:01:20,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2996 Valid, 6289 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-19 08:01:20,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69494 states. [2022-11-19 08:01:25,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69494 to 69452. [2022-11-19 08:01:25,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69452 states, 40626 states have (on average 1.2740117166346674) internal successors, (51758), 42122 states have internal predecessors, (51758), 24379 states have call successors, (24379), 4515 states have call predecessors, (24379), 4444 states have return successors, (25525), 23689 states have call predecessors, (25525), 24375 states have call successors, (25525) [2022-11-19 08:01:26,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69452 states to 69452 states and 101662 transitions. [2022-11-19 08:01:26,134 INFO L78 Accepts]: Start accepts. Automaton has 69452 states and 101662 transitions. Word has length 233 [2022-11-19 08:01:26,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:01:26,135 INFO L495 AbstractCegarLoop]: Abstraction has 69452 states and 101662 transitions. [2022-11-19 08:01:26,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-19 08:01:26,136 INFO L276 IsEmpty]: Start isEmpty. Operand 69452 states and 101662 transitions. [2022-11-19 08:01:26,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-11-19 08:01:26,142 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:01:26,142 INFO L195 NwaCegarLoop]: trace histogram [21, 19, 19, 19, 19, 19, 19, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:01:26,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 08:01:26,143 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:01:26,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:01:26,143 INFO L85 PathProgramCache]: Analyzing trace with hash -535065392, now seen corresponding path program 1 times [2022-11-19 08:01:26,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:01:26,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926105132] [2022-11-19 08:01:26,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:01:26,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:01:26,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:01:26,447 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1446 trivial. 0 not checked. [2022-11-19 08:01:26,447 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:01:26,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926105132] [2022-11-19 08:01:26,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926105132] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:01:26,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:01:26,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:01:26,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482204110] [2022-11-19 08:01:26,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:01:26,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:01:26,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:01:26,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:01:26,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:01:26,451 INFO L87 Difference]: Start difference. First operand 69452 states and 101662 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-19 08:01:33,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:01:33,340 INFO L93 Difference]: Finished difference Result 166124 states and 243151 transitions. [2022-11-19 08:01:33,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:01:33,341 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 239 [2022-11-19 08:01:33,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:01:33,914 INFO L225 Difference]: With dead ends: 166124 [2022-11-19 08:01:33,915 INFO L226 Difference]: Without dead ends: 96711 [2022-11-19 08:01:34,649 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 [2022-11-19 08:01:34,650 INFO L413 NwaCegarLoop]: 5172 mSDtfsCounter, 2976 mSDsluCounter, 2700 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2976 SdHoareTripleChecker+Valid, 7872 SdHoareTripleChecker+Invalid, 1149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:01:34,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2976 Valid, 7872 Invalid, 1149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1137 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-19 08:01:34,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96711 states.