./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6081258d9228cc20a54c5db1ec40347e5dbacbb2bb40755a07881673d13b875b --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 15:53:57,836 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 15:53:57,860 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 15:53:57,893 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 15:53:57,894 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 15:53:57,898 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 15:53:57,900 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 15:53:57,906 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 15:53:57,908 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 15:53:57,913 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 15:53:57,913 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 15:53:57,914 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 15:53:57,915 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 15:53:57,917 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 15:53:57,918 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 15:53:57,919 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 15:53:57,921 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 15:53:57,922 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 15:53:57,926 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 15:53:57,927 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 15:53:57,931 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 15:53:57,932 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 15:53:57,933 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 15:53:57,934 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 15:53:57,938 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 15:53:57,938 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 15:53:57,939 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 15:53:57,940 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 15:53:57,940 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 15:53:57,941 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 15:53:57,942 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 15:53:57,943 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 15:53:57,944 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 15:53:57,945 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 15:53:57,946 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 15:53:57,946 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 15:53:57,947 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 15:53:57,947 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 15:53:57,947 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 15:53:57,948 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 15:53:57,949 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 15:53:57,949 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 15:53:57,982 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 15:53:57,984 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 15:53:57,985 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 15:53:57,985 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 15:53:57,986 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 15:53:57,986 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 15:53:57,987 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 15:53:57,987 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 15:53:57,987 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 15:53:57,987 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 15:53:57,988 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 15:53:57,988 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 15:53:57,988 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 15:53:57,989 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 15:53:57,989 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 15:53:57,989 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 15:53:57,989 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 15:53:57,989 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 15:53:57,990 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 15:53:57,990 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 15:53:57,990 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 15:53:57,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:53:57,990 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 15:53:57,991 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 15:53:57,991 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 15:53:57,991 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 15:53:57,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 15:53:57,991 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 15:53:57,992 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 15:53:57,992 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 15:53:57,992 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 15:53:57,992 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6081258d9228cc20a54c5db1ec40347e5dbacbb2bb40755a07881673d13b875b [2021-12-22 15:53:58,208 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 15:53:58,225 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 15:53:58,227 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 15:53:58,228 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 15:53:58,228 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 15:53:58,229 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i [2021-12-22 15:53:58,286 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5ada65fb/d24b7a68124e43e896a122558a621e44/FLAGc86aa8d58 [2021-12-22 15:53:59,105 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 15:53:59,106 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i [2021-12-22 15:53:59,156 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5ada65fb/d24b7a68124e43e896a122558a621e44/FLAGc86aa8d58 [2021-12-22 15:53:59,603 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5ada65fb/d24b7a68124e43e896a122558a621e44 [2021-12-22 15:53:59,606 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 15:53:59,608 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 15:53:59,609 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 15:53:59,610 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 15:53:59,613 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 15:53:59,613 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:53:59" (1/1) ... [2021-12-22 15:53:59,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cf4bbbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:53:59, skipping insertion in model container [2021-12-22 15:53:59,615 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:53:59" (1/1) ... [2021-12-22 15:53:59,621 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 15:53:59,746 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 15:54:02,544 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[386207,386220] [2021-12-22 15:54:02,547 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[386376,386389] [2021-12-22 15:54:02,548 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[386543,386556] [2021-12-22 15:54:02,548 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[386711,386724] [2021-12-22 15:54:02,566 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:54:02,617 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 15:54:02,945 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[386207,386220] [2021-12-22 15:54:02,946 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[386376,386389] [2021-12-22 15:54:02,947 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[386543,386556] [2021-12-22 15:54:02,947 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[386711,386724] [2021-12-22 15:54:02,954 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:54:03,161 INFO L208 MainTranslator]: Completed translation [2021-12-22 15:54:03,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:54:03 WrapperNode [2021-12-22 15:54:03,162 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 15:54:03,163 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 15:54:03,163 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 15:54:03,163 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 15:54:03,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:54:03" (1/1) ... [2021-12-22 15:54:03,280 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:54:03" (1/1) ... [2021-12-22 15:54:03,434 INFO L137 Inliner]: procedures = 512, calls = 2538, calls flagged for inlining = 248, calls inlined = 216, statements flattened = 5394 [2021-12-22 15:54:03,435 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 15:54:03,436 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 15:54:03,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 15:54:03,437 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 15:54:03,444 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:54:03" (1/1) ... [2021-12-22 15:54:03,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:54:03" (1/1) ... [2021-12-22 15:54:03,469 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:54:03" (1/1) ... [2021-12-22 15:54:03,470 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:54:03" (1/1) ... [2021-12-22 15:54:03,653 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:54:03" (1/1) ... [2021-12-22 15:54:03,681 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:54:03" (1/1) ... [2021-12-22 15:54:03,718 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:54:03" (1/1) ... [2021-12-22 15:54:03,757 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 15:54:03,758 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 15:54:03,758 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 15:54:03,758 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 15:54:03,763 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:54:03" (1/1) ... [2021-12-22 15:54:03,771 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:54:03,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 15:54:03,792 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-22 15:54:03,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-22 15:54:03,828 INFO L130 BoogieDeclarations]: Found specification of procedure drain_rx [2021-12-22 15:54:03,828 INFO L138 BoogieDeclarations]: Found implementation of procedure drain_rx [2021-12-22 15:54:03,829 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-12-22 15:54:03,829 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2021-12-22 15:54:03,829 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2021-12-22 15:54:03,829 INFO L130 BoogieDeclarations]: Found specification of procedure miiport_write [2021-12-22 15:54:03,829 INFO L138 BoogieDeclarations]: Found implementation of procedure miiport_write [2021-12-22 15:54:03,829 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-22 15:54:03,829 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-22 15:54:03,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-22 15:54:03,830 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-22 15:54:03,830 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-12-22 15:54:03,830 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-12-22 15:54:03,830 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_tx_done [2021-12-22 15:54:03,830 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_tx_done [2021-12-22 15:54:03,831 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-22 15:54:03,831 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-22 15:54:03,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 15:54:03,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 15:54:03,831 INFO L130 BoogieDeclarations]: Found specification of procedure reinit_rx [2021-12-22 15:54:03,831 INFO L138 BoogieDeclarations]: Found implementation of procedure reinit_rx [2021-12-22 15:54:03,831 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-22 15:54:03,832 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-22 15:54:03,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-22 15:54:03,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-22 15:54:03,832 INFO L130 BoogieDeclarations]: Found specification of procedure reinit_ring [2021-12-22 15:54:03,832 INFO L138 BoogieDeclarations]: Found implementation of procedure reinit_ring [2021-12-22 15:54:03,832 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-12-22 15:54:03,832 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-12-22 15:54:03,833 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-22 15:54:03,833 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-22 15:54:03,833 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-12-22 15:54:03,833 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-12-22 15:54:03,833 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-22 15:54:03,834 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-22 15:54:03,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2021-12-22 15:54:03,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2021-12-22 15:54:03,834 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-22 15:54:03,835 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-22 15:54:03,835 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-22 15:54:03,835 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-22 15:54:03,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-22 15:54:03,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-22 15:54:03,835 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-22 15:54:03,835 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-22 15:54:03,836 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-22 15:54:03,836 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-22 15:54:03,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-22 15:54:03,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-22 15:54:03,836 INFO L130 BoogieDeclarations]: Found specification of procedure __set_rx_mode [2021-12-22 15:54:03,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_rx_mode [2021-12-22 15:54:03,837 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-22 15:54:03,838 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-22 15:54:03,838 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-12-22 15:54:03,838 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-12-22 15:54:03,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 15:54:03,838 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-22 15:54:03,839 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-22 15:54:03,839 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2021-12-22 15:54:03,839 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2021-12-22 15:54:03,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-12-22 15:54:03,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-12-22 15:54:03,840 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_read [2021-12-22 15:54:03,840 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_read [2021-12-22 15:54:03,840 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-22 15:54:03,840 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-22 15:54:03,841 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_stop_rxtx [2021-12-22 15:54:03,841 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_stop_rxtx [2021-12-22 15:54:03,841 INFO L130 BoogieDeclarations]: Found specification of procedure ns_tx_timeout [2021-12-22 15:54:03,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_tx_timeout [2021-12-22 15:54:03,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-22 15:54:03,841 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-22 15:54:03,841 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-22 15:54:03,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-12-22 15:54:03,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-12-22 15:54:03,842 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_reset [2021-12-22 15:54:03,842 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_reset [2021-12-22 15:54:03,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-22 15:54:03,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-22 15:54:03,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-22 15:54:03,842 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 15:54:03,843 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2021-12-22 15:54:03,843 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2021-12-22 15:54:03,843 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-22 15:54:03,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-22 15:54:03,843 INFO L130 BoogieDeclarations]: Found specification of procedure move_int_phy [2021-12-22 15:54:03,844 INFO L138 BoogieDeclarations]: Found implementation of procedure move_int_phy [2021-12-22 15:54:03,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-22 15:54:03,844 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-22 15:54:03,845 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-22 15:54:03,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-22 15:54:03,845 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-22 15:54:03,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-22 15:54:03,845 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-22 15:54:03,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-22 15:54:03,845 INFO L130 BoogieDeclarations]: Found specification of procedure enable_wol_mode [2021-12-22 15:54:03,846 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_wol_mode [2021-12-22 15:54:03,846 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_resume [2021-12-22 15:54:03,846 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_resume [2021-12-22 15:54:03,846 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-12-22 15:54:03,846 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-12-22 15:54:03,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-22 15:54:03,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-22 15:54:03,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 15:54:03,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-12-22 15:54:03,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-12-22 15:54:03,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-12-22 15:54:03,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-12-22 15:54:03,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-12-22 15:54:03,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-12-22 15:54:03,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 15:54:03,848 INFO L130 BoogieDeclarations]: Found specification of procedure mii_getbit [2021-12-22 15:54:03,849 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_getbit [2021-12-22 15:54:03,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-22 15:54:03,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-22 15:54:03,852 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-22 15:54:03,852 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-22 15:54:03,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 15:54:03,853 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 15:54:03,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 15:54:03,853 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-22 15:54:03,853 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-22 15:54:03,857 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_poll_controller [2021-12-22 15:54:03,858 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_poll_controller [2021-12-22 15:54:03,858 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-12-22 15:54:03,858 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-12-22 15:54:03,858 INFO L130 BoogieDeclarations]: Found specification of procedure check_link [2021-12-22 15:54:03,858 INFO L138 BoogieDeclarations]: Found implementation of procedure check_link [2021-12-22 15:54:03,858 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-12-22 15:54:03,859 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-12-22 15:54:03,859 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-22 15:54:03,859 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-22 15:54:03,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-22 15:54:03,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-22 15:54:03,859 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-22 15:54:03,859 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-22 15:54:03,859 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-22 15:54:03,860 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-22 15:54:03,860 INFO L130 BoogieDeclarations]: Found specification of procedure init_phy_fixup [2021-12-22 15:54:03,860 INFO L138 BoogieDeclarations]: Found implementation of procedure init_phy_fixup [2021-12-22 15:54:03,860 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2021-12-22 15:54:03,860 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2021-12-22 15:54:03,860 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-12-22 15:54:03,860 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-12-22 15:54:03,860 INFO L130 BoogieDeclarations]: Found specification of procedure mii_nway_result [2021-12-22 15:54:03,861 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_nway_result [2021-12-22 15:54:03,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 15:54:03,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 15:54:03,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-22 15:54:03,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-22 15:54:03,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-22 15:54:03,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-22 15:54:03,861 INFO L130 BoogieDeclarations]: Found specification of procedure switch_port_external [2021-12-22 15:54:03,862 INFO L138 BoogieDeclarations]: Found implementation of procedure switch_port_external [2021-12-22 15:54:03,862 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_close [2021-12-22 15:54:03,862 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_close [2021-12-22 15:54:03,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-22 15:54:03,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-22 15:54:03,862 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-22 15:54:03,862 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-22 15:54:03,862 INFO L130 BoogieDeclarations]: Found specification of procedure get_eeprom_len [2021-12-22 15:54:03,863 INFO L138 BoogieDeclarations]: Found implementation of procedure get_eeprom_len [2021-12-22 15:54:03,863 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-12-22 15:54:03,863 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-12-22 15:54:03,863 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq [2021-12-22 15:54:03,863 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq [2021-12-22 15:54:03,863 INFO L130 BoogieDeclarations]: Found specification of procedure get_regs_len [2021-12-22 15:54:03,863 INFO L138 BoogieDeclarations]: Found implementation of procedure get_regs_len [2021-12-22 15:54:03,863 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-22 15:54:03,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-22 15:54:03,864 INFO L130 BoogieDeclarations]: Found specification of procedure nway_reset [2021-12-22 15:54:03,864 INFO L138 BoogieDeclarations]: Found implementation of procedure nway_reset [2021-12-22 15:54:03,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_netdev_private [2021-12-22 15:54:03,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_netdev_private [2021-12-22 15:54:03,864 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-22 15:54:03,864 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-22 15:54:03,864 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-12-22 15:54:03,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-12-22 15:54:03,865 INFO L130 BoogieDeclarations]: Found specification of procedure init_registers [2021-12-22 15:54:03,865 INFO L138 BoogieDeclarations]: Found implementation of procedure init_registers [2021-12-22 15:54:03,865 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-22 15:54:03,865 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-22 15:54:03,865 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-22 15:54:03,865 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-22 15:54:03,865 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies [2021-12-22 15:54:03,866 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies [2021-12-22 15:54:03,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 15:54:03,867 INFO L130 BoogieDeclarations]: Found specification of procedure switch_port_internal [2021-12-22 15:54:03,867 INFO L138 BoogieDeclarations]: Found implementation of procedure switch_port_internal [2021-12-22 15:54:03,867 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-22 15:54:03,867 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-22 15:54:03,867 INFO L130 BoogieDeclarations]: Found specification of procedure dump_ring [2021-12-22 15:54:03,867 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_ring [2021-12-22 15:54:03,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 15:54:03,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 15:54:03,868 INFO L130 BoogieDeclarations]: Found specification of procedure intr_handler [2021-12-22 15:54:03,868 INFO L138 BoogieDeclarations]: Found implementation of procedure intr_handler [2021-12-22 15:54:03,868 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-22 15:54:03,868 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-22 15:54:03,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_netdev_private [2021-12-22 15:54:03,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_netdev_private [2021-12-22 15:54:03,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_68 [2021-12-22 15:54:03,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_68 [2021-12-22 15:54:03,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-22 15:54:03,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-22 15:54:03,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-12-22 15:54:03,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-12-22 15:54:03,869 INFO L130 BoogieDeclarations]: Found specification of procedure __get_stats [2021-12-22 15:54:03,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_stats [2021-12-22 15:54:03,870 INFO L130 BoogieDeclarations]: Found specification of procedure set_bufsize [2021-12-22 15:54:03,870 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bufsize [2021-12-22 15:54:03,870 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-12-22 15:54:03,870 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-12-22 15:54:03,870 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_open [2021-12-22 15:54:03,870 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_open [2021-12-22 15:54:03,870 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_84 [2021-12-22 15:54:03,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_84 [2021-12-22 15:54:03,871 INFO L130 BoogieDeclarations]: Found specification of procedure drain_ring [2021-12-22 15:54:03,871 INFO L138 BoogieDeclarations]: Found implementation of procedure drain_ring [2021-12-22 15:54:03,871 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-22 15:54:03,871 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-22 15:54:03,871 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-22 15:54:03,871 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-22 15:54:03,871 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-12-22 15:54:03,871 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-12-22 15:54:03,871 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-22 15:54:03,872 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-22 15:54:03,872 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_remove1 [2021-12-22 15:54:03,872 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_remove1 [2021-12-22 15:54:03,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_natsemi_exit_mod_15_2 [2021-12-22 15:54:03,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_natsemi_exit_mod_15_2 [2021-12-22 15:54:03,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 15:54:03,872 INFO L130 BoogieDeclarations]: Found specification of procedure init_ring [2021-12-22 15:54:03,872 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ring [2021-12-22 15:54:03,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 15:54:03,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 15:54:03,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_85 [2021-12-22 15:54:03,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_85 [2021-12-22 15:54:03,873 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_irq_disable [2021-12-22 15:54:03,874 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_irq_disable [2021-12-22 15:54:03,876 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq [2021-12-22 15:54:03,877 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq [2021-12-22 15:54:03,877 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-22 15:54:03,877 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-22 15:54:03,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_69 [2021-12-22 15:54:03,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_69 [2021-12-22 15:54:03,877 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-12-22 15:54:03,877 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-12-22 15:54:03,877 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-12-22 15:54:03,878 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-12-22 15:54:03,879 INFO L130 BoogieDeclarations]: Found specification of procedure ns_ioaddr [2021-12-22 15:54:03,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_ioaddr [2021-12-22 15:54:03,879 INFO L130 BoogieDeclarations]: Found specification of procedure mii_send_bits [2021-12-22 15:54:03,879 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_send_bits [2021-12-22 15:54:03,879 INFO L130 BoogieDeclarations]: Found specification of procedure refill_rx [2021-12-22 15:54:03,879 INFO L138 BoogieDeclarations]: Found implementation of procedure refill_rx [2021-12-22 15:54:03,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-22 15:54:03,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-22 15:54:03,880 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2021-12-22 15:54:03,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2021-12-22 15:54:03,880 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2021-12-22 15:54:03,880 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2021-12-22 15:54:03,880 INFO L130 BoogieDeclarations]: Found specification of procedure drain_tx [2021-12-22 15:54:03,880 INFO L138 BoogieDeclarations]: Found implementation of procedure drain_tx [2021-12-22 15:54:03,880 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_irq_enable [2021-12-22 15:54:03,880 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_irq_enable [2021-12-22 15:54:03,880 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-22 15:54:03,881 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-22 15:54:03,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 15:54:03,881 INFO L130 BoogieDeclarations]: Found specification of procedure miiport_read [2021-12-22 15:54:03,881 INFO L138 BoogieDeclarations]: Found implementation of procedure miiport_read [2021-12-22 15:54:03,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-22 15:54:03,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-22 15:54:03,881 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-12-22 15:54:03,881 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-12-22 15:54:04,821 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 15:54:04,828 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 15:54:05,237 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-22 15:54:07,755 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-22 15:54:07,855 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 15:54:07,874 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 15:54:07,875 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 15:54:07,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:54:07 BoogieIcfgContainer [2021-12-22 15:54:07,879 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 15:54:07,880 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 15:54:07,880 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 15:54:07,883 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 15:54:07,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:53:59" (1/3) ... [2021-12-22 15:54:07,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f5e6c1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:54:07, skipping insertion in model container [2021-12-22 15:54:07,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:54:03" (2/3) ... [2021-12-22 15:54:07,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f5e6c1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:54:07, skipping insertion in model container [2021-12-22 15:54:07,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:54:07" (3/3) ... [2021-12-22 15:54:07,886 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i [2021-12-22 15:54:07,891 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 15:54:07,891 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-22 15:54:07,955 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 15:54:07,963 INFO L339 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=PETRI_NET, 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-22 15:54:07,963 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-22 15:54:08,039 INFO L276 IsEmpty]: Start isEmpty. Operand has 2481 states, 1601 states have (on average 1.2692067457838851) internal successors, (2032), 1638 states have internal predecessors, (2032), 749 states have call successors, (749), 129 states have call predecessors, (749), 128 states have return successors, (743), 734 states have call predecessors, (743), 743 states have call successors, (743) [2021-12-22 15:54:08,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-12-22 15:54:08,066 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:54:08,067 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:54:08,067 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:54:08,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:54:08,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1573781145, now seen corresponding path program 1 times [2021-12-22 15:54:08,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:54:08,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951886108] [2021-12-22 15:54:08,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:54:08,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:54:08,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:08,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:54:08,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:08,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:08,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:08,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:54:08,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:08,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:08,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:08,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:54:08,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:08,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:08,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:08,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:54:08,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:08,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:08,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:08,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:54:08,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:08,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:08,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:08,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 15:54:08,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:08,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:08,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:08,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-22 15:54:08,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:08,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:08,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:08,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 15:54:08,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:08,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:08,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:08,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-22 15:54:08,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:08,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:08,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:08,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-22 15:54:08,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:08,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:08,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:08,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-22 15:54:08,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:08,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:08,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:08,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-22 15:54:08,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:08,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:08,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:08,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-22 15:54:08,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:09,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:09,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:09,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-22 15:54:09,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:09,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:09,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:09,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-22 15:54:09,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:09,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:09,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:09,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-22 15:54:09,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:09,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-22 15:54:09,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:09,134 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2021-12-22 15:54:09,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:54:09,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951886108] [2021-12-22 15:54:09,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951886108] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:54:09,136 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:54:09,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 15:54:09,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645996159] [2021-12-22 15:54:09,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:54:09,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 15:54:09,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:54:09,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 15:54:09,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 15:54:09,171 INFO L87 Difference]: Start difference. First operand has 2481 states, 1601 states have (on average 1.2692067457838851) internal successors, (2032), 1638 states have internal predecessors, (2032), 749 states have call successors, (749), 129 states have call predecessors, (749), 128 states have return successors, (743), 734 states have call predecessors, (743), 743 states have call successors, (743) Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-22 15:54:14,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:54:14,973 INFO L93 Difference]: Finished difference Result 7377 states and 10713 transitions. [2021-12-22 15:54:14,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 15:54:14,976 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 193 [2021-12-22 15:54:14,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:54:15,028 INFO L225 Difference]: With dead ends: 7377 [2021-12-22 15:54:15,029 INFO L226 Difference]: Without dead ends: 4921 [2021-12-22 15:54:15,052 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:54:15,056 INFO L933 BasicCegarLoop]: 3572 mSDtfsCounter, 4290 mSDsluCounter, 3423 mSDsCounter, 0 mSdLazyCounter, 2682 mSolverCounterSat, 2448 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4976 SdHoareTripleChecker+Valid, 6995 SdHoareTripleChecker+Invalid, 5130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2448 IncrementalHoareTripleChecker+Valid, 2682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2021-12-22 15:54:15,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4976 Valid, 6995 Invalid, 5130 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2448 Valid, 2682 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2021-12-22 15:54:15,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4921 states. [2021-12-22 15:54:15,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4921 to 4819. [2021-12-22 15:54:15,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4819 states, 3125 states have (on average 1.26464) internal successors, (3952), 3198 states have internal predecessors, (3952), 1439 states have call successors, (1439), 253 states have call predecessors, (1439), 252 states have return successors, (1435), 1417 states have call predecessors, (1435), 1435 states have call successors, (1435) [2021-12-22 15:54:15,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4819 states to 4819 states and 6826 transitions. [2021-12-22 15:54:15,451 INFO L78 Accepts]: Start accepts. Automaton has 4819 states and 6826 transitions. Word has length 193 [2021-12-22 15:54:15,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:54:15,455 INFO L470 AbstractCegarLoop]: Abstraction has 4819 states and 6826 transitions. [2021-12-22 15:54:15,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-22 15:54:15,455 INFO L276 IsEmpty]: Start isEmpty. Operand 4819 states and 6826 transitions. [2021-12-22 15:54:15,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2021-12-22 15:54:15,462 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:54:15,463 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:54:15,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 15:54:15,463 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:54:15,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:54:15,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1629799473, now seen corresponding path program 1 times [2021-12-22 15:54:15,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:54:15,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349105941] [2021-12-22 15:54:15,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:54:15,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:54:15,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:15,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:54:15,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:15,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:15,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:15,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:54:15,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:15,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:15,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:15,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:54:15,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:15,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:15,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:15,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:54:15,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:15,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:15,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:15,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:54:15,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:15,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:15,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:15,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 15:54:15,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:15,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:15,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:15,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-22 15:54:15,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:15,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:15,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:15,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 15:54:15,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:15,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:15,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:15,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-22 15:54:15,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:15,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:15,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:15,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-22 15:54:15,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:15,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:15,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:15,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-22 15:54:15,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:15,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:15,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:15,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-22 15:54:15,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:15,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:15,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:15,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-22 15:54:15,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:15,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:15,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:15,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-22 15:54:15,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:15,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:15,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:15,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-22 15:54:15,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:15,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:15,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:15,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-22 15:54:15,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:15,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-22 15:54:15,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:15,928 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2021-12-22 15:54:15,929 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:54:15,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349105941] [2021-12-22 15:54:15,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349105941] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:54:15,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:54:15,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 15:54:15,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028822659] [2021-12-22 15:54:15,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:54:15,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 15:54:15,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:54:15,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 15:54:15,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 15:54:15,933 INFO L87 Difference]: Start difference. First operand 4819 states and 6826 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-22 15:54:20,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:54:20,759 INFO L93 Difference]: Finished difference Result 13465 states and 19065 transitions. [2021-12-22 15:54:20,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 15:54:20,760 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 202 [2021-12-22 15:54:20,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:54:20,819 INFO L225 Difference]: With dead ends: 13465 [2021-12-22 15:54:20,820 INFO L226 Difference]: Without dead ends: 8681 [2021-12-22 15:54:20,844 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:54:20,846 INFO L933 BasicCegarLoop]: 3438 mSDtfsCounter, 3537 mSDsluCounter, 3372 mSDsCounter, 0 mSdLazyCounter, 2598 mSolverCounterSat, 2343 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4097 SdHoareTripleChecker+Valid, 6810 SdHoareTripleChecker+Invalid, 4941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2343 IncrementalHoareTripleChecker+Valid, 2598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-12-22 15:54:20,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4097 Valid, 6810 Invalid, 4941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2343 Valid, 2598 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2021-12-22 15:54:20,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8681 states. [2021-12-22 15:54:21,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8681 to 8478. [2021-12-22 15:54:21,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8478 states, 5420 states have (on average 1.2562730627306273) internal successors, (6809), 5556 states have internal predecessors, (6809), 2568 states have call successors, (2568), 486 states have call predecessors, (2568), 487 states have return successors, (2572), 2519 states have call predecessors, (2572), 2564 states have call successors, (2572) [2021-12-22 15:54:21,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8478 states to 8478 states and 11949 transitions. [2021-12-22 15:54:21,273 INFO L78 Accepts]: Start accepts. Automaton has 8478 states and 11949 transitions. Word has length 202 [2021-12-22 15:54:21,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:54:21,274 INFO L470 AbstractCegarLoop]: Abstraction has 8478 states and 11949 transitions. [2021-12-22 15:54:21,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-22 15:54:21,275 INFO L276 IsEmpty]: Start isEmpty. Operand 8478 states and 11949 transitions. [2021-12-22 15:54:21,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2021-12-22 15:54:21,279 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:54:21,279 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:54:21,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 15:54:21,279 INFO L402 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)] === [2021-12-22 15:54:21,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:54:21,280 INFO L85 PathProgramCache]: Analyzing trace with hash -90392666, now seen corresponding path program 1 times [2021-12-22 15:54:21,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:54:21,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006830846] [2021-12-22 15:54:21,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:54:21,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:54:21,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:21,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:54:21,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:21,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:21,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:21,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:54:21,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:21,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:21,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:21,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:54:21,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:21,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:21,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:21,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:54:21,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:21,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:21,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:21,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:54:21,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:21,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:21,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:21,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 15:54:21,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:21,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:21,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:21,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-22 15:54:21,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:21,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:21,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:21,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 15:54:21,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:21,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:21,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:21,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-22 15:54:21,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:21,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:21,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:21,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-22 15:54:21,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:21,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:21,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:21,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-22 15:54:21,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:21,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:21,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:21,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-22 15:54:21,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:21,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:21,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:21,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-22 15:54:21,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:21,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:21,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:21,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-22 15:54:21,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:21,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:21,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:21,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-22 15:54:21,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:21,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:21,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:21,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-22 15:54:21,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:21,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-22 15:54:21,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:21,812 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2021-12-22 15:54:21,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:54:21,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006830846] [2021-12-22 15:54:21,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006830846] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:54:21,813 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:54:21,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 15:54:21,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071716543] [2021-12-22 15:54:21,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:54:21,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 15:54:21,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:54:21,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 15:54:21,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-22 15:54:21,815 INFO L87 Difference]: Start difference. First operand 8478 states and 11949 transitions. Second operand has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-22 15:54:31,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:54:31,421 INFO L93 Difference]: Finished difference Result 19495 states and 27394 transitions. [2021-12-22 15:54:31,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-22 15:54:31,421 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 204 [2021-12-22 15:54:31,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:54:31,482 INFO L225 Difference]: With dead ends: 19495 [2021-12-22 15:54:31,483 INFO L226 Difference]: Without dead ends: 11052 [2021-12-22 15:54:31,514 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-12-22 15:54:31,516 INFO L933 BasicCegarLoop]: 4754 mSDtfsCounter, 8847 mSDsluCounter, 4595 mSDsCounter, 0 mSdLazyCounter, 7775 mSolverCounterSat, 4842 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9975 SdHoareTripleChecker+Valid, 9349 SdHoareTripleChecker+Invalid, 12617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4842 IncrementalHoareTripleChecker+Valid, 7775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:54:31,516 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9975 Valid, 9349 Invalid, 12617 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4842 Valid, 7775 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time] [2021-12-22 15:54:31,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11052 states. [2021-12-22 15:54:31,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11052 to 10739. [2021-12-22 15:54:31,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10739 states, 6904 states have (on average 1.2531865585168018) internal successors, (8652), 7069 states have internal predecessors, (8652), 3158 states have call successors, (3158), 680 states have call predecessors, (3158), 674 states have return successors, (3158), 3091 states have call predecessors, (3158), 3154 states have call successors, (3158) [2021-12-22 15:54:32,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10739 states to 10739 states and 14968 transitions. [2021-12-22 15:54:32,015 INFO L78 Accepts]: Start accepts. Automaton has 10739 states and 14968 transitions. Word has length 204 [2021-12-22 15:54:32,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:54:32,016 INFO L470 AbstractCegarLoop]: Abstraction has 10739 states and 14968 transitions. [2021-12-22 15:54:32,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-22 15:54:32,018 INFO L276 IsEmpty]: Start isEmpty. Operand 10739 states and 14968 transitions. [2021-12-22 15:54:32,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2021-12-22 15:54:32,021 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:54:32,022 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 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] [2021-12-22 15:54:32,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 15:54:32,022 INFO L402 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)] === [2021-12-22 15:54:32,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:54:32,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1979846642, now seen corresponding path program 1 times [2021-12-22 15:54:32,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:54:32,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040743133] [2021-12-22 15:54:32,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:54:32,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:54:32,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:32,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:54:32,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:32,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:32,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:32,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:54:32,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:32,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:32,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:32,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:54:32,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:32,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:32,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:32,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:54:32,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:32,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:32,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:32,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:54:32,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:32,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:32,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:32,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 15:54:32,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:32,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:32,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:32,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-22 15:54:32,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:32,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:32,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:32,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 15:54:32,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:32,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:32,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:32,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-22 15:54:32,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:32,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:32,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:32,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-22 15:54:32,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:32,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:32,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:32,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-22 15:54:32,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:32,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:32,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:32,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-22 15:54:32,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:32,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:32,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:32,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-22 15:54:32,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:32,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:32,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:32,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-22 15:54:32,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:32,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:32,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:32,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-22 15:54:32,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:32,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:32,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:32,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-22 15:54:32,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:32,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-22 15:54:32,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:32,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-22 15:54:32,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:32,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-22 15:54:32,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:32,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:32,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:32,409 INFO L134 CoverageAnalysis]: Checked inductivity of 993 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 993 trivial. 0 not checked. [2021-12-22 15:54:32,409 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:54:32,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040743133] [2021-12-22 15:54:32,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040743133] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:54:32,410 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:54:32,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 15:54:32,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507732824] [2021-12-22 15:54:32,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:54:32,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 15:54:32,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:54:32,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 15:54:32,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 15:54:32,412 INFO L87 Difference]: Start difference. First operand 10739 states and 14968 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-12-22 15:54:37,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:54:37,048 INFO L93 Difference]: Finished difference Result 29605 states and 41301 transitions. [2021-12-22 15:54:37,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 15:54:37,049 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 213 [2021-12-22 15:54:37,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:54:37,161 INFO L225 Difference]: With dead ends: 29605 [2021-12-22 15:54:37,162 INFO L226 Difference]: Without dead ends: 18901 [2021-12-22 15:54:37,213 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:54:37,214 INFO L933 BasicCegarLoop]: 3527 mSDtfsCounter, 4190 mSDsluCounter, 3381 mSDsCounter, 0 mSdLazyCounter, 2480 mSolverCounterSat, 2428 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4803 SdHoareTripleChecker+Valid, 6908 SdHoareTripleChecker+Invalid, 4908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2428 IncrementalHoareTripleChecker+Valid, 2480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:54:37,215 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4803 Valid, 6908 Invalid, 4908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2428 Valid, 2480 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2021-12-22 15:54:37,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18901 states. [2021-12-22 15:54:37,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18901 to 18453. [2021-12-22 15:54:37,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18453 states, 12006 states have (on average 1.2569548559053807) internal successors, (15091), 12279 states have internal predecessors, (15091), 5292 states have call successors, (5292), 1176 states have call predecessors, (5292), 1152 states have return successors, (5304), 5162 states have call predecessors, (5304), 5288 states have call successors, (5304) [2021-12-22 15:54:38,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18453 states to 18453 states and 25687 transitions. [2021-12-22 15:54:38,019 INFO L78 Accepts]: Start accepts. Automaton has 18453 states and 25687 transitions. Word has length 213 [2021-12-22 15:54:38,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:54:38,019 INFO L470 AbstractCegarLoop]: Abstraction has 18453 states and 25687 transitions. [2021-12-22 15:54:38,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-12-22 15:54:38,020 INFO L276 IsEmpty]: Start isEmpty. Operand 18453 states and 25687 transitions. [2021-12-22 15:54:38,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-12-22 15:54:38,022 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:54:38,022 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:54:38,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-22 15:54:38,023 INFO L402 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)] === [2021-12-22 15:54:38,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:54:38,024 INFO L85 PathProgramCache]: Analyzing trace with hash -2057147560, now seen corresponding path program 1 times [2021-12-22 15:54:38,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:54:38,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574577479] [2021-12-22 15:54:38,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:54:38,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:54:38,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:38,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:54:38,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:38,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:38,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:38,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:54:38,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:38,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:38,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:38,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:54:38,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:38,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:38,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:38,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:54:38,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:38,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:38,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:38,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:54:38,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:38,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:38,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:38,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 15:54:38,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:38,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:38,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:38,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-22 15:54:38,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:38,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:38,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:38,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 15:54:38,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:38,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:38,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:38,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-22 15:54:38,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:38,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:38,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:38,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-22 15:54:38,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:38,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:38,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:38,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-22 15:54:38,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:38,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:38,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:38,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-22 15:54:38,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:38,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:38,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-22 15:54:38,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:38,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:38,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:38,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-22 15:54:38,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:38,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:38,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:38,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-22 15:54:38,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:38,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:38,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:38,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-22 15:54:38,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:38,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-22 15:54:38,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:38,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:38,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:38,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:54:38,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:38,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-22 15:54:38,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:38,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-22 15:54:38,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:38,568 INFO L134 CoverageAnalysis]: Checked inductivity of 994 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 994 trivial. 0 not checked. [2021-12-22 15:54:38,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:54:38,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574577479] [2021-12-22 15:54:38,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574577479] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:54:38,569 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:54:38,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 15:54:38,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371651879] [2021-12-22 15:54:38,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:54:38,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 15:54:38,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:54:38,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 15:54:38,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 15:54:38,571 INFO L87 Difference]: Start difference. First operand 18453 states and 25687 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-12-22 15:54:43,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:54:43,511 INFO L93 Difference]: Finished difference Result 55152 states and 76902 transitions. [2021-12-22 15:54:43,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 15:54:43,512 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (24), 3 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 221 [2021-12-22 15:54:43,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:54:43,843 INFO L225 Difference]: With dead ends: 55152 [2021-12-22 15:54:43,844 INFO L226 Difference]: Without dead ends: 36734 [2021-12-22 15:54:43,912 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:54:43,914 INFO L933 BasicCegarLoop]: 3633 mSDtfsCounter, 4259 mSDsluCounter, 3469 mSDsCounter, 0 mSdLazyCounter, 2689 mSolverCounterSat, 2464 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4944 SdHoareTripleChecker+Valid, 7102 SdHoareTripleChecker+Invalid, 5153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2464 IncrementalHoareTripleChecker+Valid, 2689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-12-22 15:54:43,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4944 Valid, 7102 Invalid, 5153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2464 Valid, 2689 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2021-12-22 15:54:43,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36734 states. [2021-12-22 15:54:45,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36734 to 35851. [2021-12-22 15:54:45,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35851 states, 23284 states have (on average 1.2548531180209586) internal successors, (29218), 23852 states have internal predecessors, (29218), 10313 states have call successors, (10313), 2298 states have call predecessors, (10313), 2251 states have return successors, (10341), 10030 states have call predecessors, (10341), 10309 states have call successors, (10341) [2021-12-22 15:54:45,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35851 states to 35851 states and 49872 transitions. [2021-12-22 15:54:45,689 INFO L78 Accepts]: Start accepts. Automaton has 35851 states and 49872 transitions. Word has length 221 [2021-12-22 15:54:45,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:54:45,693 INFO L470 AbstractCegarLoop]: Abstraction has 35851 states and 49872 transitions. [2021-12-22 15:54:45,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-12-22 15:54:45,695 INFO L276 IsEmpty]: Start isEmpty. Operand 35851 states and 49872 transitions. [2021-12-22 15:54:45,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2021-12-22 15:54:45,699 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:54:45,699 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 15, 15, 15, 15, 15, 15, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:54:45,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-22 15:54:45,700 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:54:45,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:54:45,700 INFO L85 PathProgramCache]: Analyzing trace with hash -875737055, now seen corresponding path program 1 times [2021-12-22 15:54:45,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:54:45,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662024733] [2021-12-22 15:54:45,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:54:45,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:54:45,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:45,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:54:45,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:45,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:45,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:45,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:54:45,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:45,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:45,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:45,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:54:45,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:45,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:45,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:45,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:54:45,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:45,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:45,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:45,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:54:45,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:45,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:45,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:45,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 15:54:45,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:45,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:45,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:45,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-22 15:54:45,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:45,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:45,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:45,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 15:54:45,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:45,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:45,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:45,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-22 15:54:45,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:45,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:45,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:45,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-22 15:54:45,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:45,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:45,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:45,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-22 15:54:45,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:45,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:45,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:45,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-22 15:54:45,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:45,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:45,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:45,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-22 15:54:45,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:45,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:45,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:45,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-22 15:54:46,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:46,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:46,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:46,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-22 15:54:46,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:46,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:46,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:46,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-22 15:54:46,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:46,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-22 15:54:46,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:46,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-22 15:54:46,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:46,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-22 15:54:46,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:46,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-22 15:54:46,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:46,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:54:46,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:46,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-22 15:54:46,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:46,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-22 15:54:46,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:46,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-22 15:54:46,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:54:46,337 INFO L134 CoverageAnalysis]: Checked inductivity of 1177 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1167 trivial. 0 not checked. [2021-12-22 15:54:46,338 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:54:46,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662024733] [2021-12-22 15:54:46,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662024733] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:54:46,338 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:54:46,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 15:54:46,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493750128] [2021-12-22 15:54:46,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:54:46,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 15:54:46,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:54:46,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 15:54:46,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 15:54:46,340 INFO L87 Difference]: Start difference. First operand 35851 states and 49872 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25)