./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 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f7842e6-25dd-4de3-a2c2-40c9b571d0d7/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f7842e6-25dd-4de3-a2c2-40c9b571d0d7/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f7842e6-25dd-4de3-a2c2-40c9b571d0d7/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f7842e6-25dd-4de3-a2c2-40c9b571d0d7/bin/utaipan-Q6hlc19bkW/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_9f7842e6-25dd-4de3-a2c2-40c9b571d0d7/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f7842e6-25dd-4de3-a2c2-40c9b571d0d7/bin/utaipan-Q6hlc19bkW --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-4e7fbc6 [2022-11-23 14:10:22,773 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:10:22,775 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:10:22,794 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:10:22,795 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:10:22,796 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:10:22,797 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:10:22,799 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:10:22,801 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:10:22,802 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:10:22,803 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:10:22,804 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:10:22,805 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:10:22,806 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:10:22,807 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:10:22,808 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:10:22,809 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:10:22,810 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:10:22,812 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:10:22,814 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:10:22,816 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:10:22,822 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:10:22,824 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:10:22,829 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:10:22,832 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:10:22,840 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:10:22,840 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:10:22,841 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:10:22,842 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:10:22,843 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:10:22,843 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:10:22,844 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:10:22,845 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:10:22,851 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:10:22,852 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:10:22,853 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:10:22,854 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:10:22,854 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:10:22,854 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:10:22,855 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:10:22,856 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:10:22,858 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f7842e6-25dd-4de3-a2c2-40c9b571d0d7/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 14:10:22,897 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:10:22,898 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:10:22,898 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:10:22,899 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:10:22,900 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:10:22,900 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:10:22,900 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:10:22,900 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:10:22,901 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:10:22,901 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:10:22,902 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:10:22,902 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:10:22,903 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:10:22,903 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:10:22,903 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:10:22,904 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:10:22,904 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:10:22,904 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:10:22,906 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:10:22,906 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:10:22,906 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:10:22,907 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:10:22,907 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:10:22,907 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:10:22,907 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:10:22,908 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:10:22,908 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:10:22,908 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:10:22,909 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:10:22,909 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:10:22,909 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:10:22,910 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:10:22,910 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:10:22,910 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:10:22,910 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:10:22,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:10:22,911 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:10:22,911 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:10:22,911 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_9f7842e6-25dd-4de3-a2c2-40c9b571d0d7/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f7842e6-25dd-4de3-a2c2-40c9b571d0d7/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3eabf9223369a4133b2add72c0b71a01ceb617c9bc4081cd5107bb51f78aed61 [2022-11-23 14:10:23,193 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:10:23,228 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:10:23,231 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:10:23,233 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:10:23,233 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:10:23,234 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f7842e6-25dd-4de3-a2c2-40c9b571d0d7/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i [2022-11-23 14:10:26,301 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:10:27,107 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:10:27,108 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f7842e6-25dd-4de3-a2c2-40c9b571d0d7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i [2022-11-23 14:10:27,173 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f7842e6-25dd-4de3-a2c2-40c9b571d0d7/bin/utaipan-Q6hlc19bkW/data/f2f8ea5c6/d630ab3a6c4e4cddb06cde1100e42893/FLAG0db38663f [2022-11-23 14:10:27,196 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f7842e6-25dd-4de3-a2c2-40c9b571d0d7/bin/utaipan-Q6hlc19bkW/data/f2f8ea5c6/d630ab3a6c4e4cddb06cde1100e42893 [2022-11-23 14:10:27,202 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:10:27,205 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:10:27,209 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:10:27,209 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:10:27,214 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:10:27,215 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:10:27" (1/1) ... [2022-11-23 14:10:27,216 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e2191e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:10:27, skipping insertion in model container [2022-11-23 14:10:27,217 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:10:27" (1/1) ... [2022-11-23 14:10:27,226 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:10:27,428 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:10:31,239 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f7842e6-25dd-4de3-a2c2-40c9b571d0d7/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] [2022-11-23 14:10:31,247 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f7842e6-25dd-4de3-a2c2-40c9b571d0d7/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] [2022-11-23 14:10:31,248 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f7842e6-25dd-4de3-a2c2-40c9b571d0d7/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] [2022-11-23 14:10:31,251 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f7842e6-25dd-4de3-a2c2-40c9b571d0d7/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] [2022-11-23 14:10:31,289 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:10:31,340 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:10:31,917 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f7842e6-25dd-4de3-a2c2-40c9b571d0d7/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] [2022-11-23 14:10:31,918 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f7842e6-25dd-4de3-a2c2-40c9b571d0d7/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] [2022-11-23 14:10:31,918 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f7842e6-25dd-4de3-a2c2-40c9b571d0d7/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] [2022-11-23 14:10:31,919 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f7842e6-25dd-4de3-a2c2-40c9b571d0d7/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] [2022-11-23 14:10:31,929 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:10:32,267 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:10:32,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:10:32 WrapperNode [2022-11-23 14:10:32,268 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:10:32,269 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:10:32,269 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:10:32,270 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:10:32,278 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:10:32" (1/1) ... [2022-11-23 14:10:32,405 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:10:32" (1/1) ... [2022-11-23 14:10:32,670 INFO L138 Inliner]: procedures = 549, calls = 2141, calls flagged for inlining = 287, calls inlined = 262, statements flattened = 6537 [2022-11-23 14:10:32,671 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:10:32,672 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:10:32,672 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:10:32,673 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:10:32,683 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:10:32" (1/1) ... [2022-11-23 14:10:32,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:10:32" (1/1) ... [2022-11-23 14:10:32,749 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:10:32" (1/1) ... [2022-11-23 14:10:32,750 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:10:32" (1/1) ... [2022-11-23 14:10:32,927 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:10:32" (1/1) ... [2022-11-23 14:10:32,961 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:10:32" (1/1) ... [2022-11-23 14:10:33,057 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:10:32" (1/1) ... [2022-11-23 14:10:33,082 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:10:32" (1/1) ... [2022-11-23 14:10:33,126 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:10:33,128 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:10:33,128 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:10:33,128 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:10:33,129 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:10:32" (1/1) ... [2022-11-23 14:10:33,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:10:33,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f7842e6-25dd-4de3-a2c2-40c9b571d0d7/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:10:33,161 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f7842e6-25dd-4de3-a2c2-40c9b571d0d7/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:10:33,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f7842e6-25dd-4de3-a2c2-40c9b571d0d7/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:10:33,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-23 14:10:33,206 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-23 14:10:33,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_94 [2022-11-23 14:10:33,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_94 [2022-11-23 14:10:33,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 14:10:33,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 14:10:33,207 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-23 14:10:33,207 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-23 14:10:33,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_76 [2022-11-23 14:10:33,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_76 [2022-11-23 14:10:33,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-23 14:10:33,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-23 14:10:33,208 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-23 14:10:33,208 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-23 14:10:33,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2022-11-23 14:10:33,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2022-11-23 14:10:33,209 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_mii_read [2022-11-23 14:10:33,209 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_mii_read [2022-11-23 14:10:33,209 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_resume [2022-11-23 14:10:33,209 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_resume [2022-11-23 14:10:33,209 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-23 14:10:33,210 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-23 14:10:33,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_mac_lock_of_smsc911x_data [2022-11-23 14:10:33,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_mac_lock_of_smsc911x_data [2022-11-23 14:10:33,210 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_drv_probe [2022-11-23 14:10:33,210 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_drv_probe [2022-11-23 14:10:33,210 INFO L130 BoogieDeclarations]: Found specification of procedure no_printk [2022-11-23 14:10:33,211 INFO L138 BoogieDeclarations]: Found implementation of procedure no_printk [2022-11-23 14:10:33,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-23 14:10:33,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-23 14:10:33,211 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-23 14:10:33,211 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-23 14:10:33,211 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-23 14:10:33,212 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-23 14:10:33,212 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-23 14:10:33,212 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-23 14:10:33,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-23 14:10:33,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-23 14:10:33,212 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-23 14:10:33,212 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-23 14:10:33,213 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_set_multicast_list [2022-11-23 14:10:33,213 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_set_multicast_list [2022-11-23 14:10:33,213 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_set_hw_mac_address [2022-11-23 14:10:33,213 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_set_hw_mac_address [2022-11-23 14:10:33,213 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write [2022-11-23 14:10:33,213 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write [2022-11-23 14:10:33,214 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2022-11-23 14:10:33,214 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2022-11-23 14:10:33,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:10:33,214 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-23 14:10:33,214 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-23 14:10:33,214 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_drv_remove [2022-11-23 14:10:33,215 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_drv_remove [2022-11-23 14:10:33,215 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_rx_multicast_update [2022-11-23 14:10:33,215 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_rx_multicast_update [2022-11-23 14:10:33,215 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-23 14:10:33,215 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-23 14:10:33,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_mac_lock_of_smsc911x_data [2022-11-23 14:10:33,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_mac_lock_of_smsc911x_data [2022-11-23 14:10:33,216 INFO L130 BoogieDeclarations]: Found specification of procedure clk_unprepare [2022-11-23 14:10:33,216 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_unprepare [2022-11-23 14:10:33,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-23 14:10:33,216 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-11-23 14:10:33,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-11-23 14:10:33,216 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-23 14:10:33,217 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-23 14:10:33,217 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_tx_writefifo [2022-11-23 14:10:33,217 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_tx_writefifo [2022-11-23 14:10:33,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 14:10:33,217 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-23 14:10:33,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-23 14:10:33,218 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_irqhandler [2022-11-23 14:10:33,218 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_irqhandler [2022-11-23 14:10:33,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:10:33,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-23 14:10:33,218 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-23 14:10:33,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-23 14:10:33,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-23 14:10:33,219 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_disable_resources [2022-11-23 14:10:33,219 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_disable_resources [2022-11-23 14:10:33,219 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_rx_get_rxstatus [2022-11-23 14:10:33,219 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_rx_get_rxstatus [2022-11-23 14:10:33,219 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc911x_reg_read [2022-11-23 14:10:33,219 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc911x_reg_read [2022-11-23 14:10:33,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-23 14:10:33,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-23 14:10:33,220 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_ethtool_getregslen [2022-11-23 14:10:33,220 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_ethtool_getregslen [2022-11-23 14:10:33,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 14:10:33,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-23 14:10:33,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-23 14:10:33,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-23 14:10:33,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-23 14:10:33,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-23 14:10:33,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-23 14:10:33,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-11-23 14:10:33,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-11-23 14:10:33,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:10:33,222 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-23 14:10:33,222 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-23 14:10:33,222 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-23 14:10:33,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-23 14:10:33,222 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-23 14:10:33,223 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-23 14:10:33,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 14:10:33,223 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 14:10:33,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 14:10:33,223 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-23 14:10:33,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-23 14:10:33,223 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_mii_write [2022-11-23 14:10:33,224 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_mii_write [2022-11-23 14:10:33,224 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_mac_complete [2022-11-23 14:10:33,224 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_mac_complete [2022-11-23 14:10:33,224 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2022-11-23 14:10:33,224 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2022-11-23 14:10:33,224 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-23 14:10:33,225 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-23 14:10:33,225 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-23 14:10:33,225 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-23 14:10:33,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-23 14:10:33,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-23 14:10:33,225 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32_rep [2022-11-23 14:10:33,226 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32_rep [2022-11-23 14:10:33,226 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-11-23 14:10:33,226 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-11-23 14:10:33,226 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource_byname [2022-11-23 14:10:33,226 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource_byname [2022-11-23 14:10:33,226 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-23 14:10:33,226 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-23 14:10:33,227 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-23 14:10:33,227 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-23 14:10:33,227 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2022-11-23 14:10:33,227 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2022-11-23 14:10:33,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:10:33,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:10:33,228 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-23 14:10:33,228 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-23 14:10:33,228 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-23 14:10:33,228 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-23 14:10:33,228 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_tx_get_txstatus [2022-11-23 14:10:33,228 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_tx_get_txstatus [2022-11-23 14:10:33,228 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-23 14:10:33,229 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-23 14:10:33,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_locked_mac_lock_of_smsc911x_data [2022-11-23 14:10:33,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_locked_mac_lock_of_smsc911x_data [2022-11-23 14:10:33,229 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2022-11-23 14:10:33,229 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2022-11-23 14:10:33,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-23 14:10:33,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-23 14:10:33,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-23 14:10:33,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-23 14:10:33,230 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_rx_readfifo [2022-11-23 14:10:33,230 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_rx_readfifo [2022-11-23 14:10:33,230 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_open [2022-11-23 14:10:33,230 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_open [2022-11-23 14:10:33,230 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2022-11-23 14:10:33,231 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2022-11-23 14:10:33,231 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_ethtool_get_eeprom_len [2022-11-23 14:10:33,231 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_ethtool_get_eeprom_len [2022-11-23 14:10:33,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-23 14:10:33,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-23 14:10:33,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_dev_lock_of_smsc911x_data [2022-11-23 14:10:33,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_dev_lock_of_smsc911x_data [2022-11-23 14:10:33,232 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_rx_readfifo_shift [2022-11-23 14:10:33,232 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_rx_readfifo_shift [2022-11-23 14:10:33,232 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_suspend [2022-11-23 14:10:33,232 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_suspend [2022-11-23 14:10:33,232 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_read_mac_address [2022-11-23 14:10:33,232 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_read_mac_address [2022-11-23 14:10:33,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_93 [2022-11-23 14:10:33,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_93 [2022-11-23 14:10:33,233 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_mac_write [2022-11-23 14:10:33,233 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_mac_write [2022-11-23 14:10:33,233 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read [2022-11-23 14:10:33,233 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read [2022-11-23 14:10:33,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 14:10:33,233 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 14:10:33,234 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-23 14:10:33,234 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-23 14:10:33,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2022-11-23 14:10:33,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2022-11-23 14:10:33,234 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc911x_reg_write [2022-11-23 14:10:33,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc911x_reg_write [2022-11-23 14:10:33,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:10:33,235 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-23 14:10:33,235 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-23 14:10:33,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 14:10:33,235 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_reg_write [2022-11-23 14:10:33,235 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_reg_write [2022-11-23 14:10:33,235 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_ethtool_nwayreset [2022-11-23 14:10:33,236 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_ethtool_nwayreset [2022-11-23 14:10:33,236 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_free_resources [2022-11-23 14:10:33,236 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_free_resources [2022-11-23 14:10:33,236 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_disable_irq_chip [2022-11-23 14:10:33,236 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_disable_irq_chip [2022-11-23 14:10:33,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 14:10:33,236 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_eeprom_send_cmd [2022-11-23 14:10:33,237 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_eeprom_send_cmd [2022-11-23 14:10:33,237 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-23 14:10:33,237 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-23 14:10:33,237 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_phy_adjust_link [2022-11-23 14:10:33,237 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_phy_adjust_link [2022-11-23 14:10:33,237 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_reg_read [2022-11-23 14:10:33,237 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_reg_read [2022-11-23 14:10:33,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-23 14:10:33,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-23 14:10:33,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-23 14:10:33,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-23 14:10:33,238 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_tx_update_txcounters [2022-11-23 14:10:33,238 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_tx_update_txcounters [2022-11-23 14:10:33,238 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc911x_reg_read_shift [2022-11-23 14:10:33,239 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc911x_reg_read_shift [2022-11-23 14:10:33,239 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-23 14:10:33,239 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-23 14:10:33,239 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc911x_reg_write_shift [2022-11-23 14:10:33,239 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc911x_reg_write_shift [2022-11-23 14:10:33,239 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-23 14:10:33,239 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-23 14:10:33,240 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-23 14:10:33,240 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-23 14:10:33,240 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-23 14:10:33,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-23 14:10:33,240 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-23 14:10:33,240 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-23 14:10:33,240 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_phy_enable_external [2022-11-23 14:10:33,241 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_phy_enable_external [2022-11-23 14:10:33,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:10:33,241 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_mac_read [2022-11-23 14:10:33,241 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_mac_read [2022-11-23 14:10:33,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-23 14:10:33,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-23 14:10:33,241 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-23 14:10:33,242 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-23 14:10:33,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_smsc911x_cleanup_module_14_2 [2022-11-23 14:10:33,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_smsc911x_cleanup_module_14_2 [2022-11-23 14:10:33,242 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_soft_reset [2022-11-23 14:10:33,242 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_soft_reset [2022-11-23 14:10:33,242 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_eeprom_enable_access [2022-11-23 14:10:33,242 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_eeprom_enable_access [2022-11-23 14:10:33,243 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32_rep [2022-11-23 14:10:33,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32_rep [2022-11-23 14:10:33,243 INFO L130 BoogieDeclarations]: Found specification of procedure spin_is_locked [2022-11-23 14:10:33,243 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_is_locked [2022-11-23 14:10:33,243 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_stop [2022-11-23 14:10:33,243 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_stop [2022-11-23 14:10:33,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-23 14:10:33,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-23 14:10:33,244 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_tx_writefifo_shift [2022-11-23 14:10:33,244 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_tx_writefifo_shift [2022-11-23 14:10:33,244 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-11-23 14:10:33,245 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-11-23 14:10:33,245 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-23 14:10:33,245 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-23 14:10:33,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:10:33,245 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2022-11-23 14:10:33,245 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2022-11-23 14:10:33,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-23 14:10:33,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-23 14:10:33,246 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-23 14:10:33,246 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-23 14:10:34,188 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:10:34,195 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:10:34,597 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-23 14:10:38,794 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-23 14:10:38,958 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:10:40,863 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:10:40,863 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-23 14:10:40,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:10:40 BoogieIcfgContainer [2022-11-23 14:10:40,870 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:10:40,874 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:10:40,874 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:10:40,878 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:10:40,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:10:27" (1/3) ... [2022-11-23 14:10:40,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@414512e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:10:40, skipping insertion in model container [2022-11-23 14:10:40,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:10:32" (2/3) ... [2022-11-23 14:10:40,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@414512e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:10:40, skipping insertion in model container [2022-11-23 14:10:40,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:10:40" (3/3) ... [2022-11-23 14:10:40,883 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i [2022-11-23 14:10:40,905 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:10:40,905 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-23 14:10:41,008 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:10:41,016 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;@1b445496, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:10:41,016 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-23 14:10:41,028 INFO L276 IsEmpty]: Start isEmpty. Operand has 2145 states, 1256 states have (on average 1.3097133757961783) internal successors, (1645), 1293 states have internal predecessors, (1645), 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) [2022-11-23 14:10:41,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-11-23 14:10:41,052 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:10:41,053 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] [2022-11-23 14:10:41,054 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-23 14:10:41,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:10:41,059 INFO L85 PathProgramCache]: Analyzing trace with hash 215175298, now seen corresponding path program 1 times [2022-11-23 14:10:41,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:10:41,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109045555] [2022-11-23 14:10:41,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:10:41,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:10:41,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:10:42,015 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2022-11-23 14:10:42,016 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:10:42,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109045555] [2022-11-23 14:10:42,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109045555] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:10:42,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:10:42,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:10:42,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057451919] [2022-11-23 14:10:42,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:10:42,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:10:42,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:10:42,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:10:42,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:10:42,058 INFO L87 Difference]: Start difference. First operand has 2145 states, 1256 states have (on average 1.3097133757961783) internal successors, (1645), 1293 states have internal predecessors, (1645), 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, (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) [2022-11-23 14:10:44,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:10:44,311 INFO L93 Difference]: Finished difference Result 6289 states and 9935 transitions. [2022-11-23 14:10:44,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:10:44,317 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 [2022-11-23 14:10:44,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:10:44,375 INFO L225 Difference]: With dead ends: 6289 [2022-11-23 14:10:44,376 INFO L226 Difference]: Without dead ends: 4165 [2022-11-23 14:10:44,404 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 [2022-11-23 14:10:44,411 INFO L413 NwaCegarLoop]: 3664 mSDtfsCounter, 3084 mSDsluCounter, 2742 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3084 SdHoareTripleChecker+Valid, 6406 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:10:44,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3084 Valid, 6406 Invalid, 781 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-23 14:10:44,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4165 states. [2022-11-23 14:10:44,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4165 to 4137. [2022-11-23 14:10:44,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4137 states, 2433 states have (on average 1.3012741471434444) internal successors, (3166), 2513 states have internal predecessors, (3166), 1464 states have call successors, (1464), 240 states have call predecessors, (1464), 237 states have return successors, (1504), 1433 states have call predecessors, (1504), 1460 states have call successors, (1504) [2022-11-23 14:10:44,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4137 states to 4137 states and 6134 transitions. [2022-11-23 14:10:44,805 INFO L78 Accepts]: Start accepts. Automaton has 4137 states and 6134 transitions. Word has length 213 [2022-11-23 14:10:44,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:10:44,807 INFO L495 AbstractCegarLoop]: Abstraction has 4137 states and 6134 transitions. [2022-11-23 14:10:44,807 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) [2022-11-23 14:10:44,807 INFO L276 IsEmpty]: Start isEmpty. Operand 4137 states and 6134 transitions. [2022-11-23 14:10:44,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-11-23 14:10:44,819 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:10:44,820 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] [2022-11-23 14:10:44,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:10:44,821 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-23 14:10:44,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:10:44,821 INFO L85 PathProgramCache]: Analyzing trace with hash -909216104, now seen corresponding path program 1 times [2022-11-23 14:10:44,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:10:44,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698148536] [2022-11-23 14:10:44,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:10:44,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:10:44,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:10:45,212 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2022-11-23 14:10:45,214 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:10:45,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698148536] [2022-11-23 14:10:45,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698148536] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:10:45,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:10:45,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:10:45,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000997177] [2022-11-23 14:10:45,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:10:45,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:10:45,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:10:45,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:10:45,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:10:45,220 INFO L87 Difference]: Start difference. First operand 4137 states and 6134 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, (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) [2022-11-23 14:10:47,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:10:47,327 INFO L93 Difference]: Finished difference Result 12245 states and 18153 transitions. [2022-11-23 14:10:47,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:10:47,327 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 [2022-11-23 14:10:47,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:10:47,385 INFO L225 Difference]: With dead ends: 12245 [2022-11-23 14:10:47,385 INFO L226 Difference]: Without dead ends: 8147 [2022-11-23 14:10:47,412 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 [2022-11-23 14:10:47,413 INFO L413 NwaCegarLoop]: 3445 mSDtfsCounter, 2983 mSDsluCounter, 2703 mSDsCounter, 0 mSdLazyCounter, 778 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2983 SdHoareTripleChecker+Valid, 6148 SdHoareTripleChecker+Invalid, 785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:10:47,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2983 Valid, 6148 Invalid, 785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 778 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-23 14:10:47,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8147 states. [2022-11-23 14:10:47,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8147 to 8143. [2022-11-23 14:10:47,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8143 states, 4810 states have (on average 1.3012474012474013) internal successors, (6259), 4962 states have internal predecessors, (6259), 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) [2022-11-23 14:10:48,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8143 states to 8143 states and 12061 transitions. [2022-11-23 14:10:48,056 INFO L78 Accepts]: Start accepts. Automaton has 8143 states and 12061 transitions. Word has length 211 [2022-11-23 14:10:48,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:10:48,059 INFO L495 AbstractCegarLoop]: Abstraction has 8143 states and 12061 transitions. [2022-11-23 14:10:48,060 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) [2022-11-23 14:10:48,065 INFO L276 IsEmpty]: Start isEmpty. Operand 8143 states and 12061 transitions. [2022-11-23 14:10:48,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-11-23 14:10:48,072 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:10:48,072 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] [2022-11-23 14:10:48,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:10:48,072 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)] === [2022-11-23 14:10:48,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:10:48,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1614666640, now seen corresponding path program 1 times [2022-11-23 14:10:48,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:10:48,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430949566] [2022-11-23 14:10:48,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:10:48,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:10:48,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:10:48,446 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2022-11-23 14:10:48,446 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:10:48,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430949566] [2022-11-23 14:10:48,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430949566] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:10:48,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:10:48,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:10:48,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504604741] [2022-11-23 14:10:48,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:10:48,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:10:48,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:10:48,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:10:48,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:10:48,450 INFO L87 Difference]: Start difference. First operand 8143 states and 12061 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) [2022-11-23 14:10:51,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:10:51,159 INFO L93 Difference]: Finished difference Result 23487 states and 34687 transitions. [2022-11-23 14:10:51,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:10:51,160 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 [2022-11-23 14:10:51,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:10:51,319 INFO L225 Difference]: With dead ends: 23487 [2022-11-23 14:10:51,319 INFO L226 Difference]: Without dead ends: 15383 [2022-11-23 14:10:51,389 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 [2022-11-23 14:10:51,395 INFO L413 NwaCegarLoop]: 4021 mSDtfsCounter, 2755 mSDsluCounter, 2681 mSDsCounter, 0 mSdLazyCounter, 905 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2755 SdHoareTripleChecker+Valid, 6702 SdHoareTripleChecker+Invalid, 934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:10:51,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2755 Valid, 6702 Invalid, 934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 905 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-23 14:10:51,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15383 states. [2022-11-23 14:10:52,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15383 to 15349. [2022-11-23 14:10:52,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15349 states, 9022 states have (on average 1.2891819995566394) internal successors, (11631), 9316 states have internal predecessors, (11631), 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) [2022-11-23 14:10:52,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15349 states to 15349 states and 22529 transitions. [2022-11-23 14:10:52,537 INFO L78 Accepts]: Start accepts. Automaton has 15349 states and 22529 transitions. Word has length 220 [2022-11-23 14:10:52,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:10:52,542 INFO L495 AbstractCegarLoop]: Abstraction has 15349 states and 22529 transitions. [2022-11-23 14:10:52,542 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) [2022-11-23 14:10:52,542 INFO L276 IsEmpty]: Start isEmpty. Operand 15349 states and 22529 transitions. [2022-11-23 14:10:52,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-11-23 14:10:52,547 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:10:52,547 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] [2022-11-23 14:10:52,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 14:10:52,548 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)] === [2022-11-23 14:10:52,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:10:52,551 INFO L85 PathProgramCache]: Analyzing trace with hash -557231556, now seen corresponding path program 1 times [2022-11-23 14:10:52,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:10:52,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930958265] [2022-11-23 14:10:52,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:10:52,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:10:52,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:10:52,805 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2022-11-23 14:10:52,805 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:10:52,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930958265] [2022-11-23 14:10:52,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930958265] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:10:52,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:10:52,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:10:52,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765641164] [2022-11-23 14:10:52,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:10:52,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:10:52,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:10:52,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:10:52,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:10:52,808 INFO L87 Difference]: Start difference. First operand 15349 states and 22529 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, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-23 14:10:55,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:10:55,681 INFO L93 Difference]: Finished difference Result 43519 states and 63953 transitions. [2022-11-23 14:10:55,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:10:55,682 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, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 220 [2022-11-23 14:10:55,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:10:55,840 INFO L225 Difference]: With dead ends: 43519 [2022-11-23 14:10:55,840 INFO L226 Difference]: Without dead ends: 28209 [2022-11-23 14:10:55,917 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 [2022-11-23 14:10:55,918 INFO L413 NwaCegarLoop]: 3452 mSDtfsCounter, 2690 mSDsluCounter, 2680 mSDsCounter, 0 mSdLazyCounter, 803 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2690 SdHoareTripleChecker+Valid, 6132 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 [2022-11-23 14:10:55,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2690 Valid, 6132 Invalid, 810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 803 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-23 14:10:55,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28209 states. [2022-11-23 14:10:57,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28209 to 28167. [2022-11-23 14:10:57,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28167 states, 16514 states have (on average 1.2799442896935933) internal successors, (21137), 17080 states have internal predecessors, (21137), 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) [2022-11-23 14:10:58,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28167 states to 28167 states and 41391 transitions. [2022-11-23 14:10:58,238 INFO L78 Accepts]: Start accepts. Automaton has 28167 states and 41391 transitions. Word has length 220 [2022-11-23 14:10:58,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:10:58,239 INFO L495 AbstractCegarLoop]: Abstraction has 28167 states and 41391 transitions. [2022-11-23 14:10:58,239 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, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-23 14:10:58,240 INFO L276 IsEmpty]: Start isEmpty. Operand 28167 states and 41391 transitions. [2022-11-23 14:10:58,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-11-23 14:10:58,246 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:10:58,247 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] [2022-11-23 14:10:58,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 14:10:58,248 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)] === [2022-11-23 14:10:58,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:10:58,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1181571203, now seen corresponding path program 1 times [2022-11-23 14:10:58,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:10:58,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894477032] [2022-11-23 14:10:58,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:10:58,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:10:58,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:10:58,578 INFO L134 CoverageAnalysis]: Checked inductivity of 1409 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1409 trivial. 0 not checked. [2022-11-23 14:10:58,579 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:10:58,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894477032] [2022-11-23 14:10:58,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894477032] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:10:58,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:10:58,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:10:58,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799142848] [2022-11-23 14:10:58,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:10:58,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:10:58,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:10:58,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:10:58,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:10:58,583 INFO L87 Difference]: Start difference. First operand 28167 states and 41391 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) [2022-11-23 14:11:02,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:11:02,673 INFO L93 Difference]: Finished difference Result 70160 states and 103036 transitions. [2022-11-23 14:11:02,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:11:02,674 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 [2022-11-23 14:11:02,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:11:03,115 INFO L225 Difference]: With dead ends: 70160 [2022-11-23 14:11:03,115 INFO L226 Difference]: Without dead ends: 42032 [2022-11-23 14:11:03,261 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 [2022-11-23 14:11:03,262 INFO L413 NwaCegarLoop]: 3510 mSDtfsCounter, 2997 mSDsluCounter, 2716 mSDsCounter, 0 mSdLazyCounter, 789 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2997 SdHoareTripleChecker+Valid, 6226 SdHoareTripleChecker+Invalid, 796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:11:03,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2997 Valid, 6226 Invalid, 796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 789 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-23 14:11:03,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42032 states. [2022-11-23 14:11:06,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42032 to 41990. [2022-11-23 14:11:06,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41990 states, 24602 states have (on average 1.2772945289000894) internal successors, (31424), 25478 states have internal predecessors, (31424), 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) [2022-11-23 14:11:06,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41990 states to 41990 states and 61572 transitions. [2022-11-23 14:11:06,543 INFO L78 Accepts]: Start accepts. Automaton has 41990 states and 61572 transitions. Word has length 234 [2022-11-23 14:11:06,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:11:06,544 INFO L495 AbstractCegarLoop]: Abstraction has 41990 states and 61572 transitions. [2022-11-23 14:11:06,544 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) [2022-11-23 14:11:06,544 INFO L276 IsEmpty]: Start isEmpty. Operand 41990 states and 61572 transitions. [2022-11-23 14:11:06,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-11-23 14:11:06,549 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:11:06,550 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] [2022-11-23 14:11:06,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 14:11:06,550 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)] === [2022-11-23 14:11:06,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:11:06,551 INFO L85 PathProgramCache]: Analyzing trace with hash 913959960, now seen corresponding path program 1 times [2022-11-23 14:11:06,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:11:06,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195804153] [2022-11-23 14:11:06,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:11:06,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:11:06,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:11:06,782 INFO L134 CoverageAnalysis]: Checked inductivity of 1409 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1409 trivial. 0 not checked. [2022-11-23 14:11:06,782 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:11:06,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195804153] [2022-11-23 14:11:06,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195804153] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:11:06,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:11:06,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:11:06,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402108924] [2022-11-23 14:11:06,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:11:06,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:11:06,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:11:06,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:11:06,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:11:06,785 INFO L87 Difference]: Start difference. First operand 41990 states and 61572 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) [2022-11-23 14:11:11,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:11:11,597 INFO L93 Difference]: Finished difference Result 111485 states and 163427 transitions. [2022-11-23 14:11:11,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:11:11,598 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 [2022-11-23 14:11:11,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:11:11,948 INFO L225 Difference]: With dead ends: 111485 [2022-11-23 14:11:11,948 INFO L226 Difference]: Without dead ends: 69534 [2022-11-23 14:11:12,136 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 [2022-11-23 14:11:12,138 INFO L413 NwaCegarLoop]: 3591 mSDtfsCounter, 2998 mSDsluCounter, 2716 mSDsCounter, 0 mSdLazyCounter, 804 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2998 SdHoareTripleChecker+Valid, 6307 SdHoareTripleChecker+Invalid, 811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:11:12,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2998 Valid, 6307 Invalid, 811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 804 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-23 14:11:12,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69534 states. [2022-11-23 14:11:15,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69534 to 69492. [2022-11-23 14:11:15,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69492 states, 40666 states have (on average 1.274725815177298) internal successors, (51838), 42162 states have internal predecessors, (51838), 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) [2022-11-23 14:11:16,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69492 states to 69492 states and 101742 transitions. [2022-11-23 14:11:16,435 INFO L78 Accepts]: Start accepts. Automaton has 69492 states and 101742 transitions. Word has length 234 [2022-11-23 14:11:16,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:11:16,436 INFO L495 AbstractCegarLoop]: Abstraction has 69492 states and 101742 transitions. [2022-11-23 14:11:16,436 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) [2022-11-23 14:11:16,436 INFO L276 IsEmpty]: Start isEmpty. Operand 69492 states and 101742 transitions. [2022-11-23 14:11:16,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-11-23 14:11:16,443 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:11:16,444 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] [2022-11-23 14:11:16,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 14:11:16,444 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)] === [2022-11-23 14:11:16,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:11:16,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1126284224, now seen corresponding path program 1 times [2022-11-23 14:11:16,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:11:16,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107456484] [2022-11-23 14:11:16,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:11:16,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:11:16,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:11:16,774 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1446 trivial. 0 not checked. [2022-11-23 14:11:16,774 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:11:16,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107456484] [2022-11-23 14:11:16,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107456484] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:11:16,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:11:16,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:11:16,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988335359] [2022-11-23 14:11:16,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:11:16,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:11:16,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:11:16,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:11:16,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:11:16,778 INFO L87 Difference]: Start difference. First operand 69492 states and 101742 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) [2022-11-23 14:11:23,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:11:23,178 INFO L93 Difference]: Finished difference Result 166212 states and 243327 transitions. [2022-11-23 14:11:23,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:11:23,178 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 [2022-11-23 14:11:23,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:11:23,709 INFO L225 Difference]: With dead ends: 166212 [2022-11-23 14:11:23,710 INFO L226 Difference]: Without dead ends: 96759 [2022-11-23 14:11:23,929 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 [2022-11-23 14:11:23,930 INFO L413 NwaCegarLoop]: 5146 mSDtfsCounter, 2978 mSDsluCounter, 2709 mSDsCounter, 0 mSdLazyCounter, 1114 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2978 SdHoareTripleChecker+Valid, 7855 SdHoareTripleChecker+Invalid, 1126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-23 14:11:23,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2978 Valid, 7855 Invalid, 1126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1114 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-23 14:11:24,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96759 states. [2022-11-23 14:11:28,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96759 to 96671. [2022-11-23 14:11:28,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96671 states, 57012 states have (on average 1.2753981617905001) internal successors, (72713), 59150 states have internal predecessors, (72713), 33357 states have call successors, (33357), 6416 states have call predecessors, (33357), 6299 states have return successors, (35113), 32308 states have call predecessors, (35113), 33353 states have call successors, (35113) [2022-11-23 14:11:29,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96671 states to 96671 states and 141183 transitions. [2022-11-23 14:11:29,545 INFO L78 Accepts]: Start accepts. Automaton has 96671 states and 141183 transitions. Word has length 239 [2022-11-23 14:11:29,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:11:29,546 INFO L495 AbstractCegarLoop]: Abstraction has 96671 states and 141183 transitions. [2022-11-23 14:11:29,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-23 14:11:29,547 INFO L276 IsEmpty]: Start isEmpty. Operand 96671 states and 141183 transitions. [2022-11-23 14:11:29,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-11-23 14:11:29,551 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:11:29,551 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:11:29,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 14:11:29,552 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-23 14:11:29,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:11:29,553 INFO L85 PathProgramCache]: Analyzing trace with hash -56950492, now seen corresponding path program 1 times [2022-11-23 14:11:29,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:11:29,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888374107] [2022-11-23 14:11:29,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:11:29,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:11:29,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:11:30,558 INFO L134 CoverageAnalysis]: Checked inductivity of 1559 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1559 trivial. 0 not checked. [2022-11-23 14:11:30,559 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:11:30,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888374107] [2022-11-23 14:11:30,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888374107] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:11:30,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:11:30,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:11:30,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90813394] [2022-11-23 14:11:30,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:11:30,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 14:11:30,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:11:30,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 14:11:30,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:11:30,562 INFO L87 Difference]: Start difference. First operand 96671 states and 141183 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28)